283 results about "Sump pump" patented technology

The invention discloses a fault detection method suitable for a permanent magnet motor sewage pump, and particularly relates to the technical field of motor equipment operation fault detection.The fault detection method comprises the following steps that stage division is conducted on the operation process of the permanent magnet motor sewage pump, and staged dynamic baselines corresponding to all operation stages are established; extracting transient abrupt change of the operating parameters under the dynamic baseline constraint and forming a transient abnormal event sequence; the method comprises the following steps: judging the damage degree grade of a transient abnormal event, continuously accumulating risk integrals, outputting early warning information when a risk reaches a trigger condition, and generating an operation disposal instruction; according to the invention, by constructing a staged dynamic baseline and extracting a transient abnormal event, accurate identification of abnormal behaviors in different operation stages is realized; and in combination with a continuous accumulation mechanism of the damage degree grade and the risk integral, when the risk reaches a triggering condition, an early warning is output, and an operation disposal instruction is generated, so that the accuracy, timeliness and operation safety of fault detection of the permanent magnet motor sewage pump are improved.

The present invention discloses a fabric cleaning machine with a water circulation function, comprising a sewage tank, a clean water tank, a machine body base and a machine body upper cover, wherein the machine body base is internally provided with a sewage pump and a suction motor, the sewage pump and the suction motor are mounted between the machine body upper cover and the machine body base, the machine body upper cover is provided with a main switch, the main switch is fixedly connected with the machine body upper cover, the filtering assembly is connected with the sewage pump, and the clean water tank is connected with the sewage pump. The present invention has the following beneficial effects that the purposes of recycling water and being more convenient to use and place are achieved.

The utility model discloses an odor treatment device for a municipal sewage pumping station, which relates to the technical field of odor treatment and comprises a water washing tank, an adsorption tank is arranged on the outer wall of the top of the water washing tank, an adsorption tank is inserted into the bottom of the inner wall of the adsorption tank in a sliding manner, biological stuffing is filled in the adsorption tank, and a material turning assembly is arranged on the inner wall of the adsorption tank. And the material turning assembly is located above the adsorption tank, the material turning assembly is matched with the adsorption tank, and the material turning assembly comprises installation blocks installed on the inner walls of the two sides of the adsorption tank in a sliding mode. According to the biological filler overturning device, extracted air washed by the washing tank is introduced into the adsorption tank and is adsorbed by the biological filler, the material overturning sheet descends and is inserted into the biological filler, and the servo motor drives the threaded rod to rotate to drive the fixed block to move, so that the material overturning sheet is driven to slide back and forth in the biological filler to overturn the biological filler. The influence on gas deodorization caused by hardening of the biological filler in the use process is prevented.

The utility model relates to the field of sewage treatment, in particular to a sludge discharge device for sewage treatment, which comprises a sludge treatment box, a sewage inlet pipe and a collection box, the sewage inlet pipe is arranged on the left side of the sludge treatment box, a sewage pump is mounted on the sewage inlet pipe, and a waterproof servo motor and a filter pressing plate are arranged in the sludge treatment box. The sewage treatment device disclosed by the utility model has the beneficial effects that the filter pressing plate and the waterproof servo motor are matched for use, so that impurities in sewage can be quickly and effectively separated from a water body, and the sewage treatment efficiency is improved; the design of the movable baffle can prevent sludge from entering the sewage inlet pipe or influencing the normal operation of the scraper, so that the smooth operation of the system is ensured; and the arrangement of the telescopic hose, the drainage pipe and the water pump ensures the effective discharge of the filter-pressed clear water without manual intervention, so that the automation degree is improved.

The utility model discloses a dosing device which comprises a treatment pond, a transverse moving assembly is installed at the top of the treatment pond, two main pipes are symmetrically and rotationally connected to the movable end of the transverse moving assembly, and a plurality of short pipes are fixedly arranged on the outer surfaces of the two main pipes in a penetrating mode. A plurality of water distribution holes penetrating into the short pipes are formed in the outer surfaces of the short pipes; and auxiliary transmission assemblies are jointly mounted between the two main pipes and the treatment tank. According to the sewage treatment device, through the arrangement of the transverse moving assembly, the main pipe, the short pipe, the water distribution holes, the auxiliary transmission assembly, the rotating connector, the flow dividing pipe, the water tank, the chemical supply assembly, the water outlet sewage pump body, the water inlet sewage pump body, the double-shaft motor, the fixing pipe and the water inlet pipe, chemicals are added into sewage through flowing water, and in the adding process, the sewage can be stirred, so that the sewage treatment effect is improved. Bottom sewage, middle sewage and top sewage can be quickly mixed with a medicament, so that the sewage treatment efficiency is improved.

The utility model discloses a washing cleaning structure of a floor mopping robot, the floor mopping robot comprises a frame, a walking driving assembly, a rolling sweeping assembly, a refuse hopper, an air draft assembly and a washing assembly, the washing assembly comprises a water distributor, a washing rolling brush, a water scraping brush strip and a water absorption scraper which are arranged in sequence from front to back, the water scraping brush strip is provided with water scraping brush bristles, and the water absorption scraper is provided with a water outlet. A water absorption channel is formed in the water absorption scraper; a plurality of nozzles are arranged on the lower surface of the water segregator; the frame is provided with a rolling brush driving motor corresponding to the washing rolling brush, and the rolling brush driving motor is in driving connection with the washing rolling brush; the frame is further provided with a clean water tank, a sewage tank and a clean water pump, the sewage pump, the clean water tank, the clean water pump and the water segregator are sequentially connected through pipelines, and the sewage tank, the sewage pump and the water suction rake are sequentially connected through pipelines. Through the structural design, the floor sweeping robot is novel in structural design, and the floor cleaning effect of the floor sweeping robot can be effectively improved.

The utility model provides a pond backflow cleaning and floating device, and belongs to the technical field of treatment of suspended impurities in wastewater. Comprising a mounting frame, a box body, a collecting basket, a sewage pump, a medicament tank and a monitor, an adjusting bolt is arranged at the top of the mounting frame, and the box body is movably mounted on the mounting frame through the adjusting bolt; a water inlet allowing water to flow in is formed in one side of the box body, the collecting basket is installed in the box body, and filtering holes are formed in the collecting basket; the sewage pump is positioned in the box body and is opposite to the water inlet so as to guide water flow into the box body and the collecting basket; the medicament tank is positioned in the box body and is used for performing medicament adding treatment on the water flow entering the box body and the collecting basket; a monitor is arranged on the mounting frame and transmits the detected water flow condition to a remote control unit in a signal form, and the remote control unit controls the operation states of the sewage pump and the medicament tank according to the detected water flow condition.

The utility model discloses an environment-friendly vacuum unit which comprises a vacuum chamber and a circulating water tank, a cleaning mechanism used for cleaning solid impurities in the circulating water tank is arranged on the circulating water tank, the cleaning mechanism comprises a suction mechanism, a filtering mechanism and a backflow mechanism, the suction mechanism comprises a mounting bin, a sewage pump and a suction end, the filtering mechanism is a filtering tank, and the backflow mechanism is a backflow mechanism. The backflow mechanism comprises a first water pump and a backflow opening. By mounting the mounting bin and the suction end, when impurities in the circulating water tank need to be cleaned, the motor and the sewage pump are started, the pipeline and the suction end move at the bottom of the water tank to suck the impurities, the sucked impurities are conveyed to the filter tank through the sewage pump, sewage enters the filter tank and is filtered by the filter cartridge, and the sewage is filtered by the filter cartridge along with starting of the first water pump. The filtered clean water is conveyed back into the circulating water tank through the return pipe, so that the environment-friendly water jet vacuum unit can efficiently clean impurities in the circulating water tank, and the resource utilization rate and the overall performance of the unit are improved.

The utility model relates to the technical field of building engineering discloses a kind of for local hidden well precipitation device in foundation pit, including cushion, the right side of the cushion is close to the middle place and is provided with drainage mechanism, the drainage mechanism is for precipitation, the top left and right sides of the cushion are all provided with multiple dismounting mechanism, the dismounting mechanism is for dismounting, the top of the cushion is close to the middle place and is provided with limiting mechanism, the top of the cushion is fixedly connected with raft, the top left side of the raft is provided with cover mechanism, the top of the cushion is close to the middle place and is provided with antiskid mechanism.In the utility model, start sewage pump, then sewage pump will suck sewage into drain pipe, then pass through water stop ring through drain pipe, and the water stop ring is fixed on the cushion through steel pipe, the water stop ring can stop water in time, realize the effect of preventing silt blockage efficiently, and increase land adaptability.

The utility model relates to the technical field of environmental protection equipment, and discloses a rapid sewage oxidation and digestion system which comprises a sewage tank, a mixer, a mixed impact oxidation reactor, an oxidation tower and a clear water tank, a sewage pump is arranged between the sewage tank and the mixer, a water inlet of the sewage pump is communicated with a water outlet of the sewage tank, and a water outlet of the sewage tank is communicated with a water outlet of the oxidation tower. A water outlet of the sewage pump is communicated with a first inlet of the mixer, an outlet of the mixer is communicated with a water inlet of the mixed impact oxidation reactor, a water inlet of the oxidation tower is communicated with a water outlet of the mixed impact oxidation reactor, and the clear water tank is communicated with the oxidation tower; the device further comprises a multi-ion generator and a circulating water pump, the multi-ion generator is communicated with the mixer, and the circulating water pump is communicated with the oxidation tower and the mixer. The sewage treatment device is suitable for treating sewage containing toxic and harmful organic matters, can quickly digest toxic and harmful matters in the sewage, and solves the problem of secondary pollution of the sewage.

The application provides a drying base station and a scrubber with automatic sewage recovery. The drying base station with automatic sewage recovery comprises a base station body, the base station body has a bottom box and a back box, a connecting pipe corresponding to a sewage box of the scrubber is arranged on the outside of the back box, a sewage tank for storing sewage is arranged on the inside of the back box, and a sewage pump for pumping sewage from the connecting pipe to the inside of the sewage tank is arranged on the inside of the back box; an air outlet pipe corresponding to a rolling brush of the scrubber is arranged on the top of the bottom box, a bottom of the air outlet pipe is provided with an air uniformizing cavity in communication with the air outlet pipe, a fan for blowing air into the air uniformizing cavity is arranged on one side of the air uniformizing cavity, a heating component for heating air flow is arranged in the air uniformizing cavity, and a temperature sensor is arranged above the heating component; in the application, the sewage pump is started to pump sewage in the sewage box to the inside of the sewage tank, the capacity of the sewage tank is much larger than that of the sewage box, the frequency of pouring sewage can be significantly reduced, and the convenience of use is improved.

The utility model provides a novel sewage pump, and belongs to the field of pumps. The problem that a sewage pump is easily blocked is solved. The novel sewage pump comprises a pump body with a water inlet and a water outlet, the water inlet of the pump body extends downwards in the axial direction to form a blocking assembly, the blocking assembly comprises a baffle and a plurality of connecting ribs, through holes are formed in the baffle, and the connecting ribs are sequentially distributed at intervals in the circumferential direction along the outer edge of the baffle. The connecting rib, the baffle and the water inlet of the pump body are of an integrally-formed structure, the connecting rib, the baffle and the water inlet of the pump body are structurally matched to form a water inlet cavity, a crushing device is arranged in the water inlet cavity and comprises a rotating cylinder, a crushing cutter head and an auxiliary cutter head, and a plurality of cutter tooth pieces used for crushing and cutting are arranged on the outer edge of the crushing cutter head. The cross section of each cutter tooth piece is of an L-shaped structure, an auxiliary blade is arranged at the lower end of each cutter tooth piece, and a cutting included angle is formed between each auxiliary blade and the lower end of the corresponding cutter tooth piece. The utility model has the advantage of anti-clogging.

This utility model relates to the field of anti-sludge base technology and discloses a CFD anti-sludge base with a shock-absorbing structure, including a sewage pump body. A support mechanism is provided at the bottom of the sewage pump body, and a fixing mechanism is provided on the outside of the support mechanism. The support mechanism includes a base assembly and a support assembly. The base assembly is located at the bottom of the sewage pump body, and the support assembly is located within the inner ring of the base assembly. This CFD anti-sludge base with a shock-absorbing structure, through the provided support mechanism, uses a support ring to support the sewage pump body via a rubber gasket and a retainer. When the retainer is subjected to force, it compresses the rubber gasket downwards, causing deformation and improving the fit between the retainer and the rubber gasket. This enhances the stability of the sewage pump body after it is fixed within the conical base. The flexible connection between the rubber gasket and the retainer, by improving the fit after fixing, avoids gaps and indirectly achieves a shock-absorbing effect.

A computer system for sump pump monitoring and repair service provider notification may include one or more processors configured to: detect that a sump pump is faulty, transmit a prompt for service quotes to a machine learning (ML) chatbot to cause the ML chatbot to: request sump pump replacement or repair services from one or more service providers, receive cost estimates from the one or more repair service providers, receive schedule availability from the one or more repair service providers, receive, from the ML chatbot, the cost estimates and the schedule availability, and communicate the cost estimates and / or the schedule availability to a user associated with the sump pump.

A sump pump system for a residential building has a sump with an inlet that receives water from an external source, a pump positioned with the sump, the pump having a pump inlet in fluid communication with the sump and an outlet in communication with a fluid destination, a valve connected to the inlet of the sump, the valve being movable between an open position in which fluid is permitted to enter the sump via the inlet, and a closed position, in which fluid is prevented from entering the sump via the inlet, wherein the valve is biased toward the closed position, and a valve restraint that is electrically actuated between a first state and a second state. In the first state, the valve restraint holds the valve open and in the second state, the valve restraint releases the valve.

The utility model provides a sewage pump coupling device which comprises an L-shaped pipe, a supporting frame and an L-shaped frame connected with the L-shaped pipe, the L-shaped pipe is fixed above the supporting frame, the L-shaped frame is used for being fixed on a water outlet pipe of a sewage pump, a communicating hole is formed in the L-shaped frame, one end of the communicating hole is communicated with the L-shaped pipe, and the other end of the communicating hole is communicated with the supporting frame. One end of the communicating hole is communicated with the L-shaped pipe, the other end of the communicating hole is used for being communicated with a water outlet pipe of the sewage pump, a fixing plate is connected between the L-shaped frame and the L-shaped pipe, a temperature sensor is fixedly connected to the fixing plate, and the temperature sensor penetrates into the L-shaped pipe, so that the purpose of improving practicability is achieved.

The utility model relates to the technical field of sewage pump stations, in particular to an intelligent sewage pump station convenient to ventilate, which comprises a barrel, a sealing cover, a hinge assembly, a ventilation assembly and a driving assembly, a through hole is formed in the side wall of the barrel, limiting grooves are symmetrically formed in the inner side wall of the through hole, and the sealing cover is slidably connected to the inner wall of the through hole. A limiting groove is formed in the outer side of the sealing cover, a protruding part matched with the limiting groove is arranged on the outer side of the sealing cover, the hinge assembly comprises a hinged support fixed to the outer side wall of the sealing cover and a rotating shaft fixedly connected to the hinged support, the ventilation assembly comprises a machine box fixedly connected to the inner side wall of the barrel, the machine box is arranged towards an opening of the through hole, and a draught fan is fixedly installed on the inner wall of the machine box. According to the utility model, the sealing cover is moved out of the cylinder body, and an operator can conveniently overhaul the fan in the case through the through hole, so that the overhaul progress of the fan and the normal maintenance and operation of the sewage pumping station are prevented from being delayed.

The invention belongs to the technical field of flat mops, and particularly discloses a clean-dirt separating and cleaning method of a flat mop, which comprises the following steps of: supplying clean water: pumping clean water in a clean water tank into a clean water cavity by a clean water pump, converging the clean water in a water outlet cavity after shunting, sucking the clean water by a water sucking cloth strip, and permeating the clean water to mop cloth to quantitatively supply the clean water to the center of a flat mop head; sewage on the ground enters from the side end of the flat mop head and is sequentially absorbed by the mop cloth and the water absorption cloth strips, then the sewage pump is used for vacuumizing and absorbing the sewage, the sewage absorbed by the side end of the water absorption cloth strips is absorbed into the water absorption cavity, then the sewage enters the sewage cavity and is finally absorbed into the sewage tank, and the sewage at the side end of the flat mop head is sucked out. By optimizing the path and mechanism of clean water supply and sewage discharge, quantitative supply of clean water in the center of the cleaning face of the flat mop head in the length direction of the flat mop head and efficient and thorough discharge of sewage from the side end of the flat mop head are achieved, sewage purification separation type cleaning is achieved, and the cleaning effect, efficiency and sanitation degree of the flat mop are improved.

The utility model discloses a sewage pump station sand-water separation device, which comprises a static separation unit, a sand-water separation unit, a sand-water separation unit and a sand-water separation unit, the static separation unit comprises a sewage tank, a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are symmetrically arranged at the top of the sewage tank, and a sedimentation tank is arranged at the bottom of the sewage tank; the primary dynamic separation unit comprises a connecting cylinder, the connecting cylinder is communicated with the sedimentation tank, an auger is arranged in the connecting cylinder, and the end, away from the sedimentation tank, of the connecting cylinder is communicated with a discharging pipe; and the secondary dynamic separation unit comprises a separation sieve plate and a separation box. By adopting a mode of combining static separation and dynamic separation, efficient and continuous sand-water separation is realized, the sewage treatment efficiency is improved, the separation sieve plate is in the shape of an inverted circular truncated cone, and a plurality of staggered buffer plates are arranged in the separation sieve plate, so that the screening efficiency is improved, solid impurities are prevented from being accumulated on the sieve plate, and the service life of the sand-water separator is prolonged. The device is compact in overall design, small in occupied area and convenient to install and use in a limited space of a sewage pump station.

The utility model discloses a double-filter-screen circulating sewage pump which comprises a main body mechanism. The main body mechanism comprises a sewage pump main body, a water outlet pipe installed on one side of the sewage pump main body, a water inlet pipe installed on the other side of the sewage pump main body, a four-way shell symmetrically fixed to the top end of the sewage pump main body, a control base rotationally arranged in an inner cavity of the four-way shell, and a servo motor installed at the top end of the four-way shell and connected with the control base through a shaft. The four-way shells are symmetrically arranged on the two sides of the sewage pump body, the filtering pieces are symmetrically arranged between the opposite four-way shells and communicate with the four-way shells on the two sides, the sewage discharge pipe is installed on the four-way shell on one side, and the water diversion piece is installed on the four-way shell on the other side and communicates with the water outlet pipe. The double-filter-screen circulating sewage pump has the advantages that the double-filter-screen circulating switching filtering is achieved, and the filter screens are automatically cleaned.

The application relates to the technical field of backflow prevention check valves, and discloses a backflow prevention check valve for a rural sewage pump station, which comprises a valve shell, a water inlet cavity, a movable cavity and a water outlet cavity are sequentially arranged in the valve shell from right to left, the water inlet cavity, the movable cavity and the water outlet cavity are arranged in an inverted T shape, a valve core is hingedly installed on the inner wall of the valve shell in the movable cavity, two fixed blocks are fixedly installed on the side of the valve core close to the water outlet cavity, a folding plate is rotatably installed on the inner wall of the two fixed blocks, and the side, away from the fixed blocks, of the folding plate is rotatably installed on the inner wall of the valve shell. The valve core is hingedly installed on the inner wall of the valve shell, and then, when sewage backflows, the valve core rotates and resets under the cooperation of the self weight, the folding plate expands under the rotation connection of the two ends, impurities in the sewage can be effectively prevented from entering the movable cavity after the folding plate expands, the movement of the valve core is ensured, sewage backflow is prevented, and normal water flow discharge is ensured.

The utility model provides a vertical and horizontal dual-purpose submersible sewage pump, which belongs to the technical field of submersible pumps and comprises a motor casing, a mechanical seal chamber and a volute which are sequentially connected, a first mounting rack is arranged on the outer side of the motor casing, and a second mounting rack is arranged on the outer side of the volute; the first mounting frame is provided with a first supporting face opposite to the motor shell, the second mounting frame is provided with a second supporting face opposite to the volute, and the second supporting face is parallel to the first supporting face. The length of the first mounting frame is not larger than that of the motor shell, the width of the first mounting frame is not larger than the diameter of the motor shell, the length of the second mounting frame is not larger than that of the volute, and the width of the second mounting frame is not larger than that of the volute. When the submersible sewage pump is horizontally mounted, the first mounting frame and the second mounting frame are supported on the foundation ground; when the submersible sewage pump is vertically mounted, the first mounting frame and the second mounting frame can be limited in a vertical space, so that the submersible sewage pump can be used vertically and horizontally, the universality of the submersible sewage pump is improved, and the use cost of a user is reduced.

The present invention provides a sump pump system, including a sump pump monitor and application. The sump pump system includes a sump pump. Components of the sump pump system are installed in and / or near a sump. The sump collects liquid, such as water, from an inlet pipe. The sump pump is operable to remove water from the sump. The sump pump is fluidly connected to a discharge pipe. The discharge pipe is operable to carry water from the sump pump to a storm sewer or other discharge point.

The invention belongs to the technical field of cleaning equipment, and discloses an automatic cleaning system for a spraying chamber of a textile air conditioner, which comprises a cleaning system arranged in a spraying water tank and a sewage pump, and the sewage pump is communicated with a water outlet of the spraying water tank through a blow-off pipe; the dirt collecting hopper is arranged at the bottom of the spraying water tank; the liquid level sensor is arranged in the spraying water tank, is electrically connected with the sewage pump and is used for detecting the height of sludge in the sludge collecting hopper and sending a starting signal to the sewage pump after the height of the sludge exceeds a height threshold value; the system further comprises a grid which is arranged in the spraying water tank and located over the dirt collecting hopper. According to the scheme, through the structure of the grid and the bowl-shaped dirt collecting hopper, the grid firstly intercepts large-particle cotton dust and impurities, and the large-particle cotton dust and the impurities are prevented from being dispersed and deposited everywhere in a water pool; the bowl-shaped sewage collecting hopper quickly collects the sludge to the bottom of the hopper according to the gravity principle, and the sludge is discharged through the sewage discharge pipe and the sewage pump; the problem that sludge deposits in the spraying water tank of the textile air conditioner is solved.

The utility model provides a sand-gravel waste water treatment and slurry secondary efficient dehydration system which comprises a fine sand recovery device, and the sewage outlet end of the fine sand recovery device is connected with a sewage concentration system through a first sewage pump; a sludge collecting device is arranged in the sewage concentration system, an outlet of the sludge collecting device is connected with a mud buffer tank through a mud pump, and supernate in the sewage concentration system is connected with a reclaimed water pool through an overflow pipe; a three-way joint is mounted at the bottom of the slurry buffer tank, one end of the three-way joint is connected with the slurry dehydration device, and the other end is connected with the filter press; a sewage outlet end of the slurry dehydration device is connected with a mixer of the sewage concentration system; and a filtrate outlet of the filter press is connected with the reclaimed water tank. According to the system, the vibration dehydration device is additionally arranged at the rear end of the slurry concentration treatment process, so that the problem of recycling fine solid particulate matters with the particle size of 0.03-0.075 mm in the sand-gravel waste water can be effectively solved.

This invention discloses a zero-discharge system and method for rinsing circulating water in glass wool production, belonging to the field of wastewater treatment and recycling technology in glass wool production. The system includes a spray rinsing unit, a wastewater collection unit, a solid-liquid separation unit, and a recycling pipeline unit. The spray rinsing unit is located in the fiber accumulation area of ​​the glass wool production line. The wastewater collection unit collects the mixed water containing glass fiber waste wool generated during rinsing. The solid-liquid separation unit separates the glass fiber waste wool and obtains circulating water through a sewage pump and a vibrating screen. The recycling pipeline unit returns a portion of the circulating water to the spray rinsing unit and another portion to the binder preparation system. The system can also adjust the spray state of the direct spray nozzles according to the vibration value of the forming fan and adjust the sewage pump flow rate according to the processing state of the vibrating screen. This invention can achieve internal circulation and production consumption utilization of rinsing water under normal continuous production conditions, reducing wastewater discharge and improving production continuity and binder utilization rate.

The application provides a groundwater seepage treatment method for the connection part of new and old foundation pits in a water-rich sand layer environment, which comprises the following steps: sandbag cofferdam masonry; zoned, segmented and layered excavation of earthwork; construction of a water interception ditch + sand collection pit + filter layer collaborative drainage system; adoption of a drainage and sand removal + subsequent segmented cutting process to break the blocking wall; installation of a rigid protection structure of a reserved hole steel plate + expansion bolt fixation + full-welding splicing; sewage pump drainage; adoption of a cushion protection + steel reinforcement + continuous pouring + collaborative drainage process to construct a bottom plate; drainage hole plugging; grouting hole pressure relief; and grouting hole plugging. The application solves the problems of cofferdam leakage, large excavation disturbance, drainage blockage, leakage plugging and the like in the traditional treatment method, and through the collaborative cooperation of various key processes, ensures the safety and stability of construction under the complex geological conditions of the water-rich sand layer, improves the construction efficiency and plugging quality, adapts to the narrow operation environment of urban underground engineering, and meets the high-standard requirements of the connection construction of new and old foundation pits.

The utility model relates to the technical field of sewage treatment, in particular to a sewage drainage tube of a sewage pump. Comprising a tee joint, the first side end of the tee joint is detachably, fixedly and hermetically connected with a plug, the upper end of the tee joint is internally, fixedly and hermetically connected with a connecting pipe, the upper end of the connecting pipe is fixedly provided with a baffle ring, the connecting pipe below the baffle ring is sleeved with a sealing ring, the connecting pipe below the sealing ring is sleeved with a top sleeve, and the connecting pipe below the top sleeve is in threaded connection with a threaded sleeve; a sealing ring is fixed to the inner edge of the side wall of the threaded sleeve, and a guide slope is arranged on the inner edge of the upper end of the sealing ring. The sewage pump is convenient to hermetically insert with a sewage discharge pipe of the sewage pump, sewage discharged by the sewage discharge pipe can be intensively collected, and corrosion of the pump seat caused by long-time contact of the sewage and the pump seat can be avoided.

The utility model discloses a sewage pump body casting mould of a combined loam core, which relates to the technical field of casting moulds and comprises a mould plate, two upper mould patterns symmetrically arranged on the top surface of the mould plate, lower mould patterns symmetrically arranged on the bottom surface of the mould plate, a straight pouring column arranged at the central position of the top surface of the mould plate, and an upper cross gate arranged at the central position of the bottom surface of the mould plate. The arc inner pouring gate is arranged on one side of the lower mold, the square flange inner pouring gate is arranged on the other side of the lower mold, the square flange inner pouring gate, the arc inner pouring gate and the straight pouring column are connected in a spaced mode through the upper transverse pouring gate, and the loam core set corresponds to the upper mold and the lower mold; automatic line modeling production can be achieved, the appearance of a casting is attractive, meanwhile, production efficiency is improved, the production period is shortened, and timely delivery of products is guaranteed.

1. Name of the designed product: sewage pump (large). 2. Use of the designed product: used for a sewage pump. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view.