42results about How to "Improve drainage efficiency" patented technology

The utility model relates to the technical field of tires, and provides a super high performance car tire, comprising: a carcass; a plurality of longitudinal main drainage grooves are arranged on the tread of the carcass; the inner side of the tread of the carcass has an inner tread pattern area, and the outer side has an outer tread pattern area; a plurality of first auxiliary drainage grooves and a plurality of second auxiliary drainage grooves are alternately arranged on the inner tread pattern area; a knife groove is also arranged between adjacent first auxiliary drainage grooves and second auxiliary drainage grooves; a plurality of third auxiliary drainage grooves and a plurality of fourth auxiliary drainage grooves are alternately arranged on the outer tread pattern area. The utility model can improve the dry and wet grip and drainage performance, reduce the risk of hydroplaning, and improve the wet driving safety and driving comfort.

The utility model discloses a waterproof wear -resisting type slipper relates to slipper technical field, including sole, the top surface bonding of sole has vamp, the top surface of sole is equipped with first drain and second drain, the top of sole is equipped with antiskid salient, the both sides of sole are bonded with first wear -resisting piece, the outer wall mounting of first wear -resisting piece has second wear -resisting piece, one side of first wear -resisting piece is equipped with third wear -resisting piece. This waterproof wear -resisting type slipper is provided with first drain and second drain, when the slipper is contacted with ponding, the user lifts the foot, and the water stain can be discharged quickly through first drain and second drain, prevents the water stain to remain, influences the comfort of wearing, and can first wear -resisting piece, second wear -resisting piece and third wear -resisting piece carry out quick positioning installation dismounting, is convenient for maintenance, and through first wear -resisting piece, second wear -resisting piece and third wear -resisting piece can obviously promote the wear -resisting capacity of slipper.

A tray for yellow finish machining relates to the technical field of yellow finish machining and comprises a tray bottom (1) and a tray edge (2) extending outwards along the edge of the tray bottom (1), the section of the tray bottom (1) is in a continuous wave shape, wave crest portions and wave trough portions which are distributed alternately are formed, a plurality of liquid outlet holes (11) are vertically formed in the wave trough portions, a liquid collecting groove (12) is further formed in the lower side of the tray bottom (1), and a liquid outlet (121) is formed in one side of the liquid collecting groove (12). An adjusting assembly (3) is arranged on the side, opposite to the liquid outlet (121), of the plate edge (2), and the adjusting assembly (3) is arranged to be capable of adjusting the inclination angle of the plate bottom (1). Polygonatum sibiricum materials are supported through the wave crest parts of the plate bottom, the situation that liquid outlet holes are blocked due to material covering of a traditional plane plate bottom is avoided, and juice and water vapor generated in the steaming process can be rapidly discharged through the liquid outlet holes of the wave trough parts; the adjusting assembly can dynamically adjust the inclination angle of the tray bottom, so that liquid flows to the liquid outlet along the liquid collecting tank and flows out, the liquid discharging efficiency is remarkably improved, and the follow-up sun-curing quality of rhizoma polygonati is improved.

This invention discloses a fuel cell and its application. The bipolar plate includes a connecting structure with a cross-flow channel and a narrowing structure. The hydraulic diameter of the narrowing structure is smaller than that of the non-narrowing structure. The non-narrowing structure of the flow channel has a connecting structure corresponding to at least one of two adjacent ridges. Furthermore, the resistance of the gas in the first direction through the narrowing structure is R1, and the resistance in the second direction through the connecting structure is R2, where R1 / R2 ≥ 20. The first direction is the flow direction of the gas entering the flow field, and the second direction is perpendicular to the first direction. Therefore, the fuel cell bipolar plate provided by this invention can more fully utilize the pressure drop generated by the narrowing structure to create a larger pressure difference between adjacent flow channels. This allows a smaller flow field pressure drop to create the same or higher level of under-ridge gas convection and permeation effect within the gas diffusion layer or membrane electrode, thereby improving the under-ridge mass transfer and drainage performance of the fuel cell.

This utility model discloses a pull-out grate, belonging to the field of grate technology. The pull-out grate includes an outer frame with a groove; a grate surface with protrusions connected to the grooves; and the grate surface slidably connected to the outer frame via the protrusions. The grate has a simple structure, is easy to operate, and the outer frame and grate surface are freely detachable and can be installed as a single unit on-site. The grille on the grate surface filters leaves, garbage, and other debris. When cleaning is required, simply pull the hole to separate the grate surface from the outer frame, pushing the grate surface into the groove of the base. Opening is unaffected by water pressure, eliminating the need for large opening tools, allowing for rapid opening and closing, facilitating quick debris removal, accelerating drainage efficiency, and aiding in grate maintenance. Furthermore, the pull-out grate does not need to be placed on the road when open, avoiding obstruction and ensuring road safety.

The utility model relates to an underground garage drainage structure which comprises an underground foundation pit with a hollow interior and an open top, a water collecting well is arranged in the middle of the interior of the underground foundation pit, a parking space is arranged at the top of the water collecting well, a water collecting groove is formed between the water collecting well and the underground foundation pit, and a plurality of water filtering assemblies covering the opening of the water collecting groove are arranged at the top of the water collecting groove. A water suction pump is installed on the side, away from the water inlet pipe, of the water collecting well, and a water outlet of the water suction pump communicates with a water outlet pipe extending out of the water collecting well. Through the water filtering assembly and the water collecting well, the problems that an existing drainage structure is poor in filtering effect and disordered in water flow are solved, meanwhile, installation and maintenance are convenient and fast, the drainage efficiency and stability of the underground garage are effectively improved, and the maintenance cost is reduced.

The utility model belongs to new energy technology field, especially point to a kind of flexible photovoltaic carport, including the main stand and main support beam of transverse interval arrangement, several steel strands are arranged on two main support beams, and the both ends of steel strand are anchored in tension with main support beam, several longitudinal oblique drainage channels are arranged on the steel strand between two main support beams, longitudinal oblique drainage channel is connected with steel strand by first connecting piece, and photovoltaic panel assembly is spliced and is laid flat on the top of the canopy formed by main support beam and steel strand by second connecting piece installed on longitudinal oblique drainage channel;The utility model forms canopy bearing structure by the steel strand of transverse arrangement and main support beam, need not set up transverse purlin, reduce material cost and assembly complexity.

This utility model discloses a sealing device for the maintenance of a small reservoir water conveyance tunnel, relating to the technical field of sealing devices. It includes a water conveyance pipe, one end of which is fixedly connected to an extension pipe. The extension pipe includes a first connecting pipe, a second connecting pipe, and a third connecting pipe. The first connecting pipe is fixed to one end of the water conveyance pipe, and the second connecting pipe is fixed between the first and third connecting pipes. The middle section of the second connecting pipe is U-shaped to facilitate downward water flow. By setting up the extension pipe, which includes the first, second, and third connecting pipes, when maintenance of the water conveyance pipe is required, the valve on the drain pipe is opened, allowing water from both the first and third connecting pipes to flow into the second connecting pipe. The water then flows into the drain pipe through the middle section of the second connecting pipe. Because the middle section of the second connecting pipe is U-shaped, it facilitates the entry of water from the first and third connecting pipes into the drain pipe, thereby improving drainage efficiency.

The application relates to the roadway drainage field and discloses a novel roadway efficient drainage device, which comprises an outer through pipe, a water inlet pipe, a sewage storage bin, a drainage port and a variable-diameter port, an inner through pipe, an air inlet pipe and an air outlet pipe, and a sewage port one is arranged on the outer surface of the water inlet pipe; the inner through pipe is composed of the air inlet pipe and the air outlet pipe, and a sewage port two corresponding to the sewage port one is arranged on the outer surface of the air inlet pipe. The device utilizes the introduced high-pressure wind to generate negative pressure in the air inlet pipe inner cavity, and sewage is sucked through the sewage port one and the sewage port two, so that the sewage continuously flows to the left along the air outlet pipe and the sewage storage bin, the flow rate is increased when passing through the variable-diameter port, and finally the sewage is discharged along the drainage port. The device has the advantages that: the volume is small, the device is more flexible to deploy than a wind pump, the narrow space inside the device utilizes the Bernoulli principle to significantly improve the drainage efficiency, the sewage port one and the sewage port two are designed to enable the device to have a certain filtering function, and the overall practicability is enhanced.

The application relates to the technical field of bridge drainage devices, and discloses a bridge drainage structure which comprises a water collecting device, a transverse drainage groove, a longitudinal drainage groove and a drainage pipe which are sequentially arranged and communicated according to the drainage flow direction; the bottom of a sidewalk of the bridge is arranged on the outer side above a driveway through a stand; the water collecting device comprises a sedimentation tank arranged in the stand and a flow guide device arranged between the sedimentation tank and the driveway; the flow guide device is connected with the driveway and the sedimentation tank through a water inlet channel, guides rainwater to the sedimentation tank, and makes sundries carried in the rainwater naturally deposit in the sedimentation tank; then the overflowed rainwater is guided to the transverse drainage groove through a drainage channel which is connected with the water inlet channel and the transverse drainage groove, and is further guided to the longitudinal drainage groove and the drainage pipe, so that the drainage effect of depositing sundries first and then discharging is realized, and the blockage of the drainage groove and the drainage pipe is avoided; and the drainage groove and the drainage pipe are arranged below the sidewalk, the existing space of the bridge structure is effectively utilized, and the use space of the bridge is avoided from being occupied.

The utility model belongs to drainage equipment technical field discloses a kind of air compressor drainage device, including first drain pipe, second drain pipe and third drain pipe, one end of first drain pipe is connected in the drain port of gas holder bottom end, the first end of first three-way valve is connected to other end, first electric valve is equipped on first drain pipe;One end of second drain pipe is connected the second end of first three-way valve, manual valve is equipped on second drain pipe;One end of third drain pipe is connected the third end of first three-way valve, second electric valve and flowmeter are equipped on third drain pipe, first timer is equipped in second electric valve, the first end of first three-way valve can switch on second end or third end.This utility model can be switched between automatic timing drainage and manual drainage Control flexibly;With the advantages of simple structure and high drainage efficiency, the timing automatic drainage of gas holder can be realized Drainage and pollution, and drainage is thorough.

This invention discloses a washing machine drainage control method and a washing machine. The washing machine operates a drainage program, with a drain pump installed at the bottom of the outer tub. Its outlet is connected to a drain hole in the outer tub via a drain pipe, which is inclined. The washing machine's drainage program is divided into four stages. Combined with structural modifications to the washing machine, the control method includes: Stage 1: Starting the drain pump and cyclically starting and stopping; Stage 2: Starting the motor and running at low speed, cyclically rotating with long runs and short stops; Stage 3: Controlling the motor to rotate with short runs and long stops; Stage 4: Controlling the motor to run at high speed. During Stages 2, 3, and 4, the drain pump is controlled to rotate with long runs and short stops. This invention, through structural modifications and drainage timing control, allows water in the drain pipe to flow back into the pump chamber due to the inclined structure of the drain pipe during the drain pump's stop period, pushing air out of the pump's inlet and into the outer tub, thus solving the problem of air trapped in the pump.

The utility model discloses a cooking device, which comprises a cooking cavity and a recovery device; the recovery device is detachably connected to the outer side surface of the cooking cavity; a groove is arranged at the bottom of the cooking cavity; the shape of the groove matches the shape of a heating plate; the heating plate is clamped with the bottom of the cooking cavity through the groove; an opening is arranged at the bottom of the heating plate; the recovery device comprises a water conveying device, a water storage tank and a recovery box; the water conveying device and the water storage tank are arranged side by side; the recovery box is arranged close to the bottom of the water storage tank; a first conveying port is arranged on one side of the water conveying device; a first pipeline is arranged between the first conveying port and the opening; one end of the first pipeline is fixedly connected to the opening, and the other end of the first pipeline is detachably connected to the first conveying port; a water inlet and a water outlet are arranged on the other side of the water conveying device; the water inlet of the water conveying device is connected to the water storage tank; the water outlet of the water conveying device is connected to the recovery box. The utility model improves the internal environment of the cooking cavity.

This utility model discloses a drainage tube for draining abscess effusion, relating to the field of medical devices. It includes a tube body with a plug on one side and a fluid-conducting connector and an inflation connector on the other side. An inflation structure and a drainage port are located on the side of the tube body near the plug. A drainage cavity is connected between the drainage port and the fluid-conducting connector, and an inflation cavity is connected between the inflation structure and the inflation connector. A flow guiding component is also located on the side of the tube body near the plug, which can increase the flow rate of fluid into the drainage cavity. This drainage tube for abscess effusion drainage can effectively solve the drainage problem for patients with abscess effusion, ensuring smooth drainage of pus while avoiding excessive discomfort to the patient due to tube diameter issues.

This utility model belongs to the field of air source heat pump technology, specifically an air source heat pump condensate drainage structure. It includes a rotating shaft, with a drainage base mounted on one end of the shaft. A movable rod is mounted inside the mounting base via a pin. A ball bearing is movably mounted inside a groove, and a cylinder is mounted on the top side of the ball bearing. A circular block is mounted on one end of the movable rod, and a spring is fixed between the circular block and the bottom of the cylinder. A drain pipe is connected to the other side of the drainage base. When condensate accumulates, the increased weight of the drainage base puts pressure on the movable rod, compressing the spring and causing one end of the drainage base to sink, ensuring sufficient water storage. As condensate is continuously drained, the weight of the water on the base decreases, and the compressed spring releases its elastic potential energy, pushing the circular block upwards. The drainage base returns to a certain tilt angle, allowing condensate to slowly flow into the drain pipe along the tilted surface. This achieves a dynamic balance between the tilted drainage and water storage functions of the drainage base, improving drainage efficiency.

The utility model provides a prefabricated assembled ground drainage ditch relates to ground engineering technical field, including first ditch body, both ends of first ditch body are equipped with second ditch body, both ends of first ditch body are fixed with first assembly piece. The first ditch body and the second ditch body are all prefabricated, the ditch body size, the ditch bottom gradient are according to actual need, the model design, its material quality adopts the polymer plastic fat, part of the reinforcement, constructs the connection and uses first assembly piece, second assembly piece and assembly groove to guide, and uses first buckle piece and second buckle piece buckle connection. Form different depth accessories with few components assembly, reach the effect that improve ditch body quality, same section drainage efficiency is higher, reduce the field wet operation quantity, less manual work, reduce the cost, and the device smears sealant at the connecting place of first ditch body and second ditch body, can effectively fill the gap between first ditch body and second ditch body, the practicality is stronger.

This utility model discloses a trough-type drainage pipe fitting for bathrooms, including an adjustable plastic drainage trough, a trough connector, and a central drainage connector assembled together. The adjustable plastic drainage trough is a U-shaped trough structure with one open end, symmetrically arranged at both ends of the trough connector. The trough connector is a U-shaped open structure with side grooves on both sides, corresponding to the open ends of the adjustable plastic drainage trough. The bottom of the trough connector has a bottom groove with a through hole. The central drainage connector is located on the bottom groove of the trough connector. The central drainage connector is an integrally molded design, including a base plate and a drainage pipe that is connected to the base plate. The base plate is located in the bottom groove, and the drainage pipe passes through the through hole. This utility model drainage pipe fitting has the advantages of high drainage efficiency, easy installation, convenient maintenance, and adaptability to high-flow drainage scenarios, effectively improving the drainage process of bathroom shower rooms.

This utility model discloses a foundation pit drainage device for building construction, comprising: a deep foundation pit; a foundation pit pumping assembly mounted on the deep foundation pit, the foundation pit pumping assembly being used for pumping and draining water; and a sludge preliminary sedimentation and removal assembly mounted on one side of the foundation pit pumping assembly. The device performs secondary deep filtration of the water through a second filter plate to further remove residual impurities. A water level detector monitors the water level in real time to ensure stable filtration. The filtered water is discharged into a drainage ditch via a drainage pipe through a pump. If sludge is generated during filtration, a second sludge suction pipe transports it to a sludge pump for discharge. The advantages of this device are that the secondary filtration assembly further improves water quality, reduces impurities from clogging the drainage system, and improves drainage efficiency and quality. Simultaneously, the water level detector enables automated monitoring, improves the system's intelligence level, reduces manual intervention, and further optimizes the drainage effect.

The utility model relates to medical supplies technical field discloses a big mesh hole hernia repair patch, including a plurality of medical textile monofilament, a plurality of antibacterial fiber and a plurality of flow fiber, a plurality of medical textile monofilament and a plurality of flow fiber are respectively perpendicular to each other interlaced weaving arrangement, a plurality of antibacterial fiber is respectively arranged in the clearance of a plurality of parallelly arranged flow fiber, the side wall of a plurality of flow fiber is respectively surrounded and is opened a plurality of drainage holes. The utility model provides a plurality of medical textile monofilament, a plurality of antibacterial fiber and a plurality of flow fiber are arranged mutually, and the interval is set to 3mm, can improve the mesh size of patch, does not influence the fibrous tissue production of affected part simultaneously can reduce the rejection phenomenon, and antibacterial fiber has excellent biocompatibility, can be absorbed and metabolized by human body part, contains amino in its molecular structure, makes it have antibacterial activity, can improve the antibacterial effect of patch, prevents the situation of infection.

This application relates to the field of vehicle technology, and more particularly to an air filter assembly and a vehicle. The air filter assembly provided in this application includes: a housing having a filter chamber and an air inlet and an air outlet communicating with the filter chamber; a drain outlet is provided on the bottom wall of the filter chamber; a filter element disposed within the filter chamber and located between the air inlet and the air outlet; a muffler pipe disposed within the filter chamber and communicating with the air inlet; and a switch assembly disposed at the drain outlet for opening or closing the drain outlet. The air filter assembly provided in this application helps to solve the problem that existing air filters cannot simultaneously achieve drainage efficiency and engine performance when wading through water.

The present utility model relates to the technical field of tires, and provides a tire with high wet grip performance throughout its life cycle, including: a carcass; the crown part of the carcass sequentially has an inner liner layer, a ply layer, a belt layer, a chafe layer, a second tread rubber, and a first tread rubber from bottom to top; multiple main drainage grooves are longitudinally distributed on the first tread rubber and the second tread rubber; multiple transverse grooves are provided on the first tread rubber and the second tread rubber. The present utility model adopts a double-tread rubber structure and a deep groove design for the main drainage grooves, which can improve the wear resistance and wet grip performance of the tires, achieve high wet grip performance and drainage efficiency throughout the life cycle, and extend the service life of the tires.

The utility model relates to a water conservancy construction slope protection assembly belongs to the technical field of slope protection, including retaining wall, rainwater inlet one, broken platform, sidewalk, rainwater inlet two, rainwater inspection well, concrete socket pipe, and the drainage main steel pipe is poured in retaining wall, and the upper and lower ends of drainage main steel pipe are fixed with steel upper bend and steel lower bend respectively, and the other end of steel upper bend and steel lower bend is connected with rainwater inlet one and rainwater inlet two respectively, and the bottom of retaining wall is equipped with broken stone backfill layer, and the top inboard of broken stone backfill layer is equipped with the support slope that supports retaining wall bottom and makes retaining wall inboard lean and stick in the outside of slope body. The utility model, can timely remove the water on the slope road inboard of retaining wall, reduce the water pressure behind wall, prevent the deformation, displacement even collapse because of too much water and retaining wall bear too big lateral pressure, guarantee the stability of retaining wall. Improved drainage efficiency, and the bottom of retaining wall is equipped with broken stone backfill layer, and retaining wall settlement is prevented better.

The utility model relates to rainwater well technical field discloses a rainwater well foreign matter intercepting mechanism, including the shell, the shell inner wall both sides near the top department all are fixedly connected with trapezoidal stopper, and the shell inner wall top is slid and is provided with the intercepting frame, and the intercepting frame is matched with trapezoidal stopper, the both sides bottom of intercepting frame all are provided with the inclined plane, and the bottom middle part of intercepting frame is provided with the rectangular hole, the collecting frame is slid and is provided with the collecting frame top fixedly connected with the square frame in the rectangular hole middle part, and the square frame top both ends all are fixedly connected with the handle, and the collecting frame bottom is provided with the water seepage hole, and the bottom both sides of intercepting frame all are provided with a plurality of strip holes. The utility model realizes the efficient interception and centralized collection of the foreign matter carried by rainwater, and is concentrated in the middle part, ensures that rainwater can continuously and smoothly drain from both sides, reduces the urban waterlogging risk and avoids its entering the drainage pipeline to cause the blockage, significantly improves the long-term drainage efficiency and stability of rainwater well.

This utility model discloses an aluminum alloy door and window with convenient drainage, relating to the field of door and window technology. It includes door and window components with an inclined frame on their outer surface. Glass is fitted and fixed inside the inclined frame, and fluids forming on the glass surface are discharged along the bottom surface of the inclined frame under gravity. A door frame component is also included, with the door and window components installed inside by hinges. The hinge joint between the door frame component and the door and window components is a hollow structure. An inclined channel for drainage is provided inside the door frame component, and a drainage outlet communicating with the hollow structure is opened on the bottom surface of the door frame component. This utility model, by setting up the inclined frame and the glass fitted and fixed inside the inclined frame, allows rainwater and other fluids falling on the glass to be discharged along the bottom surface of the inclined frame under gravity, effectively preventing fluid accumulation on the door and window surface and reducing the risk of internal seepage.

This invention relates to the field of mine water hazard prevention and control technology, and provides a method for efficient drainage of water accumulation in goaf areas affected by repeated mining of multiple coal seams in close proximity. The method includes the following steps: conducting surface geophysical exploration of the prevention and control area and collecting mining information of the coal seams in the goaf; delineating abnormal water accumulation areas and low-lying areas within the prevention and control area; deploying water level monitoring holes and surface drainage holes in the abnormal water accumulation areas and low-lying areas; designing and constructing underground directional boreholes to ensure that the trajectory of the underground directional boreholes covers the abnormal water accumulation areas and low-lying areas; and performing through-hole drilling on the underground directional boreholes until the water output of each underground directional borehole drops to a target value. The following describes the process of testing the drainage effect in the prevention and control area. This invention, through ground geophysical exploration of the prevention and control area and combined with collected information on the recovery of coal seams overlying the goaf, can accurately delineate areas of abnormal water accumulation and low-lying terrain. By deploying water level monitoring boreholes and surface drainage boreholes within the delineated key areas, it not only achieves real-time monitoring of groundwater levels in these areas but also enables simultaneous drainage both above and below ground. Furthermore, by designing and constructing directional boreholes underground, ensuring their trajectory covers areas of abnormal water accumulation and low-lying terrain, it can more directly and effectively prevent water accumulation in the goaf overlying coal seams of the target area.

This utility model relates to the field of drainage technology in water conservancy engineering construction, and discloses a drainage structure for water conservancy engineering construction, including a drainage pipe. A filter screen is installed inside the drainage pipe, and a guide pipe is installed on the side wall of the drainage pipe. Shells are installed on both sides of the drainage pipe. An inlet is opened on one side of the drainage pipe, and an outlet is opened on the other side. A check valve assembly is installed inside the drainage pipe, and a disassembly assembly is installed inside the shell. The check valve assembly includes a rubber plug, the outer wall of which is slidably connected to the inside of the inlet and the inside of the drainage pipe. In this utility model, when water flows in from the inlet, the water pressure pushes the rubber plug to move, which in turn moves the sliding column. At this time, a spring is compressed, and the outer wall of the sliding column slides within a limiting column, opening the valve and allowing water to flow smoothly, preventing backflow and achieving an adaptive pressure regulation effect, thus improving drainage efficiency.

The utility model relates to building door and window technical field discloses an aluminium alloy glass door and window structure of hidden drainage, and the novel device sets up horizontal flow guide groove, vertical flow guide groove, water guide hole and water collecting tank etc. structure in the frame inside of aluminium alloy glass door and window, has realized the concealed integrated design of drainage path, has effectively avoided the problem that traditional exposed drainage hole influences door and window overall appearance, has improved drainage efficiency and the practicality of structure simultaneously, besides, through setting up sealing strip and glue fixing mode, the sealing performance of door and window has been strengthened, combines quick -release locking assembly, not only has improved the waterproof dustproof capacity of door and window whole, but also is convenient for daily maintenance and cleaning, has improved use convenience and security.

This utility model relates to the field of chemical equipment technology, and provides a combined filtration and washing device for chemical production, including a vessel body; a water sprayer disposed on the top wall of the vessel body; several filter covers disposed below the inner peripheral wall of the vessel body, and the filter covers are arranged at intervals along the inner peripheral wall of the vessel body; a filter plate disposed in the vessel body, located below the filter covers, and both the filter plate and the filter covers are used to separate solid and liquid materials; several drain pipes are disposed on the outer wall of the vessel body, and the drain pipes are located at the bottom inside the filter covers; and a liquid outlet pipe is disposed at the bottom of the vessel body. Through the above technical solution, multi-stage filtration significantly improves the solid-liquid separation rate and reduces the frequency of clogging compared to traditional single-stage filtration structures; the automatic water spraying combined with stirring washing method improves the cleanliness of the vessel body, eliminates the need for manual rinsing, and reduces labor intensity; the staged drainage design improves drainage efficiency and reduces waste liquid residue.

This utility model discloses a modular precast concrete wall-type guardrail, comprising a guardrail body with a combined buffer structure. The guardrail body, from the outside to the inside, is sequentially composed of a high-strength concrete protective layer, a porous concrete buffer layer with varying porosity, a closed-cell foam metal energy-absorbing core layer, and their symmetrical structure. The bottom of the guardrail body has a wedge-shaped chamfered base with a self-draining system and pre-embedded bolt mounting holes. The top two sides of the guardrail body have mortise and tenon joint structures, including mating tenons and mortises. A symmetrically arranged embedded lifting structure is located at the center of the top of the guardrail body, comprising a reinforced steel frame precast integrally with the guardrail body and detachable lifting rings. This utility model combines high-strength impact resistance with buffer energy absorption characteristics, enabling rapid construction through standardized precast components. It also possesses good drainage and structural stability, making it suitable for engineering fields requiring high-level protection, such as highways and bridges.