Full-automatic roller microfilter

Abstract

The utility model relates to the technical field of microfilters, in particular to a full-automatic roller microfilter. The technical problems that an existing micro-filter generally adopts a fixed screen to treat water flow, due to the fact that many impurities exist in the water flow, accumulation of the internal impurities is easily caused after long-time use, the internal filter screen is blocked, the water filtering efficiency is reduced, the filtering capacity and the treatment efficiency of equipment are reduced, and the water quality is influenced are solved. And meanwhile, the accumulation of impurities easily causes the increase of resistance during the operation of the equipment, so that internal parts are abraded, the downtime of the equipment is prolonged, and the maintenance cost is increased. According to the technical scheme, the full-automatic roller microfilter comprises a shell, a filtering assembly, a flushing assembly and a water inlet and outlet assembly, compared with a traditional microfilter, the filter cartridge is connected with the telescopic clamping block to be telescopically clamped and fixed with the fixed disc, so that the filter cartridge is quickly disassembled and replaced to adapt to different treatment requirements and working conditions, and accumulation and blockage of internal impurities are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of microfilters, in particular to a full-automatic drum microfilter. Background Art

[0002] The fully automatic drum microfilter is an advanced solid-liquid separation equipment. It adopts a fully automated operation mode and can realize automatic control of the processes such as filtration, cleaning and sewage discharge. The equipment realizes the filtration process through a rotary drum screen filter device. The fully automatic drum microfilter is suitable for filtering various suspended matter, colloids, microorganisms and other impurities, and has a good treatment effect. The existing microfilters usually use fixed screens to treat the water flow during operation. Due to the large number of impurities inside the water flow, long-term use can easily lead to the accumulation of internal impurities, causing the internal filter to become blocked, resulting in reduced water filtration efficiency, reducing the filtering capacity and treatment efficiency of the equipment, and at the same time, the accumulation of impurities can easily lead to increased resistance during equipment operation, wear of internal parts, and increased equipment downtime and maintenance costs; so we proposed a fully automatic drum microfilter to solve the above problems. Utility Model Content

[0003] In order to overcome the existing microfiltration machines, fixed screens are usually used to process water flow. Due to the large amount of impurities inside the water flow, long-term use can easily lead to the accumulation of internal impurities, causing the internal filter to become clogged, resulting in reduced water filtration efficiency, reducing the filtering capacity and processing efficiency of the equipment. At the same time, the accumulation of impurities can easily lead to increased resistance during equipment operation, wear of internal parts, and increased equipment downtime and maintenance costs.

[0004] The technical solution of the utility model is: a fully automatic drum microfiltration machine, comprising a shell, a filter component, a flushing component and an inlet and outlet water component; the interior of the shell is equipped with a filter component for filtering suspended particles in water so that they are trapped on the filter screen to achieve solid-liquid separation, the upper end of the shell is equipped with a flushing component for backwashing the filter screen to remove blockages and ensure that the filter screen always maintains a good filtering effect, and one end of the shell is equipped with an inlet and outlet water component for discharging treated water and continuously adding water to the interior.

[0005] Preferably, the filter cartridge is connected to a telescopic clamp block and fixed with a fixed plate by a telescopic clamp, so that the filter cartridge can be quickly disassembled and replaced to adapt to different processing requirements and working conditions, reduce working time and labor costs when maintaining and replacing the filter cartridge, and improve the continuous operation efficiency of the equipment. The limit screw is extended to the inside of the fixed plate and fixedly connected to the filter cartridge to ensure a tight connection between the filter cartridge and the fixed plate, avoid shaking or loosening during operation, ensure stable operation of the equipment, and use a drive motor to drive the filter cartridge to rotate so that suspended particles in the water can be evenly distributed on the filter screen, realizing automatic operation without manual intervention, saving labor costs. , the air pump is used to transfer the water flow from the transmission pipe to the auxiliary pipe and extend it to the segmented pipe, and then the water is sprayed out by the nozzle to reversely flush the dirt on the filter cartridge, effectively remove the dirt and blockages on the filter cartridge, achieve efficient cleaning effect, shorten the cleaning time, and improve the operating efficiency of the equipment. At the same time, the air pump is used for reverse flushing, and no manual cleaning is required, which reduces labor costs and realizes full automatic operation of the equipment. The sealing plug is inserted into the inside of the butt pipe for sealing, which effectively seals the interface of the butt pipe and prevents the water flow from the water tank from flowing out, ensuring that the water treatment system of the fully automatic drum microfilter always remains in a closed state, avoiding waste of water resources and ensuring the smooth operation of the equipment.

[0006] Preferably, the filter assembly includes a fixed plate, a filter cartridge, a telescopic block, a limit frame, a limit screw, a water adding ring, a fixed column, a cover plate, a drive motor, a support plate and a rotating rod. A filter cartridge is provided inside the outer shell, and fixed plates are provided at both ends of the filter cartridge. Telescopic blocks are provided around both ends of the filter cartridge. A card hole for accommodating the telescopic block is opened on the surface of the fixed plate. The fixed plate is movably connected to the filter cartridge through the telescopic block. The telescopic block is connected to the fixed plate by the filter cartridge, and the filter cartridge is fixed by telescopic clamping. The filter cartridge can be quickly disassembled and replaced to adapt to different processing requirements and working conditions, reduce working time and labor costs during maintenance and replacement of the filter cartridge, and improve the continuous operation efficiency of the equipment.

[0007] Preferably, the outer wall of the fixed plate is provided with multiple groups of limit frames, and the interior of the limit frames is provided with two groups of limit screws. The limit screws pass through the limit frames and are threadedly connected to the telescopic clamps. The limit screws are extended to the interior of the fixed plate and fixedly connected to the filter cartridge, thereby ensuring a tight connection between the filter cartridge and the fixed plate, avoiding shaking or loosening during operation, and ensuring stable operation of the equipment.

[0008] Preferably, the cover plate is located at one end of the outer shell, a rotating rod is provided at one end of the fixed disk, the rotating rod passes through the cover plate and extends to the outer end, a driving motor is provided at one end of the rotating rod, a support plate is provided at the lower end of the driving motor, and a fixing column is provided at the end of the fixed disk away from the rotating rod. The filter cartridge is driven to rotate by the driving motor, so that suspended particles in the water can be evenly distributed on the filter screen, realizing automatic operation without manual intervention, saving labor costs and improving filtration efficiency.

[0009] Preferably, the flushing component includes a water tank, a water pump, a transmission pipe, a sub-pipe, a segmented pipe, a butt pipe and a nozzle. The water tank is located outside the outer shell. A water pump is provided at the upper end of the water tank. A transmission pipe is provided at one end of the water pump. The transmission pipe extends through the outer shell to the interior. A sub-pipe is provided on the outer wall of the transmission pipe. A plurality of segmented pipes are provided on the outer wall of the sub-pipe. The transmission pipe, the sub-pipe and the segmented pipe are connected. An air pump is used to transmit water from the transmission pipe to the sub-pipe and extends into the segmented pipe, and then the water is sprayed out by the nozzle to reversely flush the dirt on the filter cartridge, thereby effectively removing dirt and blockages on the filter cartridge, achieving efficient cleaning effect, shortening cleaning time, and improving equipment operation efficiency. At the same time, an air pump is used for reverse flushing, and no manual cleaning is required, thereby reducing labor costs and realizing full automatic operation of the equipment.

[0010] Preferably, one end of the transmission pipe, the auxiliary pipe and the segmented pipe connected to each other is provided with a nozzle, the outer end of the water tank is provided with a docking pipe, the interior of the docking pipe is provided with a sealing plug, and the sealing plug is inserted into the interior of the docking pipe for sealing, thereby effectively sealing the interface of the docking pipe to prevent water from flowing out of the water tank, ensuring that the water treatment system of the fully automatic drum microfiltration machine always remains in a closed state, avoiding waste of water resources, and ensuring the smooth operation of the equipment.

[0011] Preferably, the water inlet and outlet components include a sub-plate, a docking plate, a connecting ring, a water outlet pipe, a valve and a bearing. A sub-plate is provided at one end of the outer shell away from the cover plate, a docking plate is provided on the outer wall of the sub-plate, a connecting ring is provided on the outer end of the docking plate, a bearing is provided at the inner center of the docking plate, a fixing column extends to the inside of the bearing, two groups of water outlet pipes are provided below the docking plate, valves are provided at the outer ends of the water outlet pipes, a water storage tank is provided inside the outer shell, the water outlet pipe extends through the outer shell to the inside of the water storage tank, and multiple groups of drainage grooves are provided inside the outer shell. The filtered water flow is discharged by controlling the water outlet pipe with a valve to meet different processing requirements and working conditions, thereby ensuring that the fully automatic drum microfilter is always in a high-efficiency filtering state, avoiding the decrease in filtering effect due to water discharge, and improving the processing capacity and efficiency of the equipment.

[0012] Beneficial effects of the utility model:

[0013] 1. Compared with the traditional microfiltration machine, the filter cartridge is connected to the telescopic block and fixed to the fixed plate by the telescopic clamp to achieve the rapid disassembly and replacement of the filter cartridge to adapt to different processing needs and working conditions, avoid the accumulation and blockage of internal impurities, reduce the working time and labor cost during maintenance and replacement of the filter cartridge, and improve the continuous operation efficiency of the equipment. The limit screw is extended to the inside of the fixed plate and fixedly connected to the filter cartridge to ensure the tight connection between the filter cartridge and the fixed plate, avoid shaking or loosening during operation, ensure the stable operation of the equipment, and use a drive motor to drive the filter cartridge to rotate so that the suspended particles in the water can be evenly distributed on the filter screen, realizing automatic operation without manual intervention, saving labor costs and improving filtration efficiency.

[0014] 2. Use an air pump to transfer water from the transmission pipe to the auxiliary pipe and extend it into the segmented pipe, and then use a nozzle to spray it out to backwash the dirt on the filter cartridge, effectively remove the dirt and blockages on the filter cartridge, achieve efficient cleaning effects, shorten the cleaning time, and improve the operating efficiency of the equipment. At the same time, use an air pump for backwashing, no manual cleaning is required, which reduces labor costs and realizes full automatic operation of the equipment. Use a sealing plug to seal the inside of the butt pipe, effectively seal the interface of the butt pipe, and prevent water from flowing out of the water tank, ensuring that the water treatment system of the fully automatic drum microfilter always remains in a closed state, avoiding waste of water resources and ensuring smooth operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the structure of the flushing component of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the filter assembly of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of the shell of the utility model.

[0019] Explanation of the reference numerals: 1. outer shell; 2. filter assembly; 201. fixed plate; 202. filter cartridge; 203. telescopic block; 204. limit frame; 205. limit screw; 206. water adding ring; 207. fixed column; 208. cover plate; 209. drive motor; 210. support plate; 211. rotating rod; 3. flushing assembly; 301. water storage tank; 302. water pump; 303. transmission pipe; 304. auxiliary pipe; 305. segmented pipe; 306. docking pipe; 307. nozzle; 4. water inlet and outlet assembly; 401. auxiliary plate; 402. docking plate; 403. connecting ring; 404. water outlet pipe; 405. valve; 406. bearing. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1-4 The utility model provides an embodiment: a fully automatic drum microfilter, comprising a shell 1, a filter assembly 2, a flushing assembly 3 and an inlet and outlet water assembly 4; the inside of the shell 1 is equipped with a filter assembly 2 for filtering suspended particles in water so that they are trapped on the filter screen to achieve solid-liquid separation, the upper end of the shell 1 is equipped with a flushing assembly 3 for backwashing the filter screen to remove blockages and ensure that the filter screen always maintains a good filtering effect, and one end of the shell 1 is equipped with an inlet and outlet water assembly 4 for discharging treated water and continuously adding water to the inside.

[0022] See also Figure 1-2 In this embodiment, the filter assembly 2 includes a fixed plate 201, a filter cartridge 202, a telescopic block 203, a limiting frame 204, a limiting screw 205, a water adding ring 206, a fixing column 207, a cover plate 208, a driving motor 209, a support plate 210 and a rotating rod 211. The filter cartridge 202 is arranged inside the housing 1, and the two ends of the filter cartridge 202 are provided with fixed plates 201. The two ends of the filter cartridge 202 are surrounded by telescopic blocks 203. The surface of the fixed plate 201 is provided with a card hole for accommodating the telescopic block 203. The fixed plate 201 is movably connected to the filter cartridge 202 through the telescopic block 203. By using the filter cartridge 202 to connect the telescopic block 203 and the fixed plate 201, the telescopic card The filter cartridge 202 is connected and fixed to realize quick disassembly and replacement to adapt to different processing requirements and working conditions, reduce working time and labor costs when maintaining and replacing the filter cartridge 202, and improve the continuous operation efficiency of the equipment. The outer wall of the fixed plate 201 is provided with multiple groups of limit frames 204, and the interior of the limit frames 204 is provided with two groups of limit screws 205. The limit screws 205 pass through the limit frames 204 and are threadedly connected to the telescopic blocks 203. The limit screws 205 are extended to the interior of the fixed plate 201 and fixedly connected to the filter cartridge 202, thereby ensuring a tight connection between the filter cartridge 202 and the fixed plate 201, avoiding shaking or loosening during operation, and ensuring stable operation of the equipment.

[0023] See also Figure 1-3In this embodiment, the cover plate 208 is located at one end of the shell 1, and a rotating rod 211 is provided at one end of the fixed disk 201. The rotating rod 211 passes through the cover plate 208 and extends to the outer end. A driving motor 209 is provided at one end of the rotating rod 211, and a supporting plate 210 is provided at the lower end of the driving motor 209. A fixing column 207 is provided at one end of the fixed disk 201 away from the rotating rod 211. The filter cartridge 202 is driven to rotate by the driving motor 209, so that the suspended particles in the water can be evenly distributed on the filter screen, realizing automatic operation without manual intervention, saving labor costs, and improving filtering efficiency. The flushing component 3 includes a water storage tank 301, a water pump 302, a transmission pipe 303, a sub-pipe 304, a segmented pipe 305, a butt pipe 306 and a nozzle 307. The water storage tank 301 is located at the shell 1, a water pump 302 is provided at the upper end of the water storage tank 301, and a transmission pipe 303 is provided at one end of the water pump 302. The transmission pipe 303 passes through the shell 1 and extends to the inside. The outer wall of the transmission pipe 303 is provided with a sub-pipe 304, and the outer wall of the sub-pipe 304 is provided with a multi-group segmented pipe 305. The transmission pipe 303, the sub-pipe 304 and the segmented pipe 305 are connected. The water flow is transmitted from the transmission pipe 303 to the sub-pipe 304 and extended to the segmented pipe 305 by an air pump, and is sprayed out by a nozzle 307 to reversely flush the dirt on the filter cartridge 202, effectively remove the dirt and blockage on the filter cartridge 202, achieve efficient cleaning effect, shorten the cleaning time, and improve the operation efficiency of the equipment. At the same time, the air pump is used for reverse flushing, and manual cleaning is not required, which reduces the labor cost and realizes the full automatic operation of the equipment.

[0024] See also Figure 2-4In this embodiment, one end of the transmission pipe 303, the auxiliary pipe 304 and the segmented pipe 305 connected to each other is provided with a nozzle 307, the outer end of the water storage tank 301 is provided with a docking pipe 306, and the interior of the docking pipe 306 is provided with a sealing plug. By inserting the sealing plug into the interior of the docking pipe 306 for sealing, the interface of the docking pipe 306 is effectively sealed to prevent the water flow inside the water storage tank 301 from flowing out, ensuring that the water treatment system of the fully automatic drum microfiltration machine always remains in a closed state, avoiding the waste of water resources, and ensuring the smooth operation of the equipment. The water inlet and outlet components 4 include a sub-plate 401, a docking plate 402, a connecting ring 403, a water outlet pipe 404, a valve 405 and a bearing 406. The end of the housing 1 away from the cover plate 208 is provided with a sub-plate 401, and the sub-plate 401 A docking plate 402 is provided on the outer wall, a connecting ring 403 is provided on the outer end of the docking plate 402, a bearing 406 is provided at the inner center of the docking plate 402, a fixing column 207 extends to the inside of the bearing 406, two groups of water outlet pipes 404 are provided below the docking plate 402, valves 405 are provided at the outer ends of the water outlet pipes 404, a water storage tank is provided inside the shell 1, the water outlet pipe 404 extends through the shell 1 to the inside of the water storage tank, and multiple groups of drainage grooves are provided inside the shell 1, and the filtered water flow is discharged by controlling the water outlet pipe 404 with the valve 405 to meet different processing requirements and working conditions, thereby ensuring that the fully automatic drum microfilter is always in a high-efficiency filtering state, avoiding the reduction of filtering effect due to water discharge, and improving the processing capacity and efficiency of the equipment.

[0025] When working, first select a filter cartridge 202 of appropriate precision and use the telescopic clamp block 203 to clamp it into the internal clamping hole of the fixed plate 201 to fix it. Then use the tool to connect the limit screw 205 to the clamping hole and form a threaded fixation with the telescopic clamp plate to achieve rapid disassembly and replacement of the filter cartridge 202 to adapt to different processing needs and working conditions, reduce working time and labor costs when maintaining and replacing the filter cartridge 202, and at the same time, the fixed connection of the limit screw ensures the tight connection between the filter cartridge 202 and the fixed plate 201 to avoid shaking or loosening during operation. To ensure stable operation of the equipment, after the filter cartridge 202 is installed, the fixed column 207 at one end of the fixed plate 201 is inserted into the bearing 406, and then the cover plate 208 is docked with the rotating rod 211 to fix the filter cartridge 202 to the inside of the outer shell 1. The water pipe is used to connect and dock with the connecting ring 403, and the treated water flow is transmitted from the docking plate 402 to the inside of the filter cartridge 202. The driving motor 209 is started to connect the rotating rod 211 to drive the filter cartridge 202 to rotate along the outer shell 1, so that the suspended particles in the water can be evenly distributed on the filter net, realizing automatic operation and saving labor costs.

[0026] When the treated water flow is discharged from the inside of the filter cartridge 202, the water flow is guided to the water storage tank 301 through the drainage trough for sedimentation. After the water flow is treated, the valve 405 is opened to control the outlet pipe 404 to discharge the filtered water flow to meet different treatment requirements and working conditions, ensuring that the fully automatic drum microfilter is always in a high-efficiency filtration state and avoiding the reduction of filtration effect due to water flow discharge. After the internal water flow is discharged, the air pump is controlled to transmit the water flow from the transmission pipe 303 to the auxiliary pipe 304 and extend to the segmented pipe 305 to be sprayed by the nozzle 307 to reversely flush the dirt in the filter cartridge 202, effectively removing the dirt and blockages on the filter cartridge 202. At the same time, the air pump is used for reverse flushing, and no manual cleaning is required, which shortens the cleaning time and realizes the full automatic operation of the equipment.

[0027] Through the above steps, the filter cartridge 202 is connected to the telescopic clamping block 203 and the fixed plate 201 through telescopic clamping, so as to realize the rapid disassembly and replacement of the filter cartridge 202 to adapt to different processing requirements and working conditions, reduce the working time and labor cost when maintaining and replacing the filter cartridge 202, and improve the continuous operation efficiency of the equipment. The limit screw 205 is extended to the inside of the fixed plate 201 and fixedly connected to the filter cartridge 202 to ensure the tight connection between the filter cartridge 202 and the fixed plate 201, avoid shaking or loosening during operation, and ensure the stable operation of the equipment. The drive motor 209 is used to drive the filter cartridge 202 to rotate and operate, so that the suspended particles in the water can be evenly distributed on the filter screen, realizing automatic operation without manual intervention, and saving energy. The labor cost is saved, and the water flow is transmitted from the transmission pipe 303 to the auxiliary pipe 304 through the air pump, and extended to the segmented pipe 305, and is sprayed out by the nozzle 307 to backwash the dirt on the filter cartridge 202, effectively remove the dirt and blockages on the filter cartridge 202, achieve efficient cleaning effect, shorten the cleaning time, and improve the operation efficiency of the equipment. At the same time, the air pump is used for backwashing, and manual cleaning is not required, which reduces the labor cost and realizes the full automatic operation of the equipment. The sealing plug is inserted into the inside of the butt pipe 306 for sealing, which effectively seals the interface of the butt pipe 306 and prevents the water flow inside the water tank 301 from flowing out, ensuring that the water treatment system of the fully automatic drum microfilter is always kept in a closed state, avoiding the waste of water resources and ensuring the smooth operation of the equipment.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A fully automatic drum microfiltration machine, comprising a housing (1); characterized in that: The invention also comprises a filtering component (2), a flushing component (3) and an inlet and outlet water component (4); the inside of the housing (1) is equipped with a filtering component (2) for filtering suspended particles in water so that they are trapped on the filter screen to achieve solid-liquid separation; the upper end of the housing (1) is equipped with a flushing component (3) for backwashing the filter screen to remove blockages and ensure that the filter screen always maintains a good filtering effect; one end of the housing (1) is equipped with an inlet and outlet water component (4) for discharging treated water and continuously adding water to the inside.

2. A fully automatic drum microfiltration machine according to claim 1, characterized in that: The filter assembly (2) comprises a fixed disk (201), a filter cartridge (202), a telescopic clamping block (203), a limiting frame (204), a limiting screw (205), a water adding ring (206), a fixing column (207), a cover plate (208), a driving motor (209), a supporting plate (210) and a rotating rod (211); a filter cartridge (202) is arranged inside the housing (1); fixed disks (201) are arranged at both ends of the filter cartridge (202); telescopic clamping blocks (203) are arranged around both ends of the filter cartridge (202); a clamping hole for accommodating the telescopic clamping block (203) is provided on the surface of the fixed disk (201); and the fixed disk (201) is movably connected to the filter cartridge (202) via the telescopic clamping block (203).

3. The fully automatic drum microfilter according to claim 1, characterized in that: The outer wall of the fixed plate (201) is provided with a plurality of groups of limit frames (204), and the interior of the limit frames (204) is provided with two groups of limit screws (205), and the limit screws (205) pass through the limit frames (204) and are threadedly connected to the telescopic clamping block (203).

4. A fully automatic drum microfilter according to claim 3, characterized in that: The cover plate (208) is located at one end of the housing (1); a rotating rod (211) is provided at one end of the fixed disk (201); the rotating rod (211) passes through the cover plate (208) and extends to the outer end; a driving motor (209) is provided at one end of the rotating rod (211); a supporting plate (210) is provided at the lower end of the driving motor (209); and a fixing column (207) is provided at one end of the fixed disk (201) away from the rotating rod (211).

5. The fully automatic drum microfilter according to claim 1, characterized in that: The flushing assembly (3) comprises a water storage tank (301), a water pump (302), a transmission pipe (303), an auxiliary pipe (304), a segmented pipe (305), a butt-jointed pipe (306) and a nozzle (307); the water storage tank (301) is located outside the outer shell (1); a water pump (302) is provided at the upper end of the water storage tank (301); a transmission pipe (303) is provided at one end of the water pump (302); the transmission pipe (303) passes through the outer shell (1) and extends to the interior; an auxiliary pipe (304) is provided on the outer wall of the transmission pipe (303); a plurality of segmented pipes (305) are provided on the outer wall of the auxiliary pipe (304); the transmission pipe (303), the auxiliary pipe (304) and the segmented pipe (305) are connected.

6. A fully automatic drum microfilter according to claim 5, characterized in that: A nozzle (307) is provided at one end of the transmission pipe (303), the auxiliary pipe (304) and the segmented pipe (305) which are connected to each other. A butt joint pipe (306) is provided at the outer end of the water storage tank (301). A sealing plug is provided inside the butt joint pipe (306).

7. The fully automatic drum microfilter according to claim 2, characterized in that: The water inlet and outlet assembly (4) comprises a sub-plate (401), a docking plate (402), a connecting ring (403), a water outlet pipe (404), a valve (405) and a bearing (406). The sub-plate (401) is provided at one end of the housing (1) away from the cover plate (208). The outer wall of the sub-plate (401) is provided with a docking plate (402). The outer end of the docking plate (402) is sleeved with a connecting ring (403). A bearing (406) is provided at the inner center of the docking plate (402). The fixing column (207) extends to the inside of the bearing (406). Two groups of water outlet pipes (404) are provided below the docking plate (402). The outer ends of the water outlet pipes (404) are provided with valves (405). A water storage tank is provided inside the housing (1). The water outlet pipe (404) passes through the housing (1) and extends to the inside of the water storage tank. The housing (1) has multiple groups of drainage grooves provided inside.

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