256results about How to "Prevent inflow" patented technology

The invention relates to the technical field of handbag material surface defect image detection, in particular to an environment-friendly handbag material surface defect image detection method and system, and the method comprises the following steps: obtaining image data of the surface of an environment-friendly handbag material; dividing the image data into a plurality of local areas; for each local area, extracting image features representing visual features of the local area; establishing a normal feature range of the local area, and continuously adjusting the normal feature range in combination with the environment information; comparing the current image feature with the continuously adjusted normal feature range to identify an abnormal region deviating from the continuously adjusted normal feature range; and according to the image feature mode of the abnormal region, natural textures and defects are distinguished, and defect information is output. According to the method, natural textures and real defects on the surface of the environment-friendly handbag material can be effectively distinguished, potential defects with low contrast and fuzzy edges can be identified, and the accuracy and reliability of detection are improved.

This invention relates to a substrate processing apparatus, which may include: a processing chamber having a processing space; a plasma generation chamber having a discharge space for generating plasma from a processing gas; an adapter having a guiding space for guiding the plasma generated in the discharge space to the processing chamber; and a baffle assembly disposed between the processing space, the guiding space, or the processing space and the guiding space; and the baffle assembly may include: a baffle body having a plurality of baffle holes, the baffle holes serving as channels for gas flowing between the guiding space and the processing space; a fastening member for fastening the baffle body to the processing chamber or the adapter; and a cover surrounding the fastening space where the fastening member is located, such that the fastening member is not exposed to the processing space.

This invention belongs to the field of automotive assembly technology and discloses an automated production line and control method for double-sided machining of workpieces with dual spindles. It includes a flipping mechanism, a dual-spindle machining mechanism, a raw material conveying mechanism, a finished product conveying mechanism, a robot, and a workstation conveying mechanism. The machining devices of the dual-spindle machining mechanism are spaced apart on the chassis. The lifting platform of the flipping mechanism is located next to the chassis. A flipping gripper is fixedly mounted on the chassis and positioned above the lifting platform. The rotating mechanism of the flipping gripper drives the clamping mechanism to rotate horizontally by 180 degrees. Two spindle boxes are slidably connected to the upper part of the chassis. The spindle is located inside the spindle box, with its lower end extending out of the lower end of the spindle box and fixedly connected to a spherical positioning chuck. The robot is positioned between the raw material conveying mechanism, the finished product conveying mechanism, and the workstation conveying mechanism. This invention achieves automatic workpiece flipping, avoids positioning errors and clamping eccentricity, uses air blowing to clean foreign objects from the chuck, detects the airtightness of the positioning surface, prevents workpiece deformation, and extends the service life of the equipment.

This utility model relates to a spray gun capable of multi-stage atomization, belonging to the technical field of multi-stage atomization spray guns. The multi-stage atomization spray gun includes: a spray pipe with a nozzle threadedly connected to its inner wall; and an anti-backflow mechanism, comprising two sealing gaskets slidably connected to the inner wall of the nozzle, and two mounting blocks fixedly connected to the inner wall of the nozzle, with the surface of the sealing gaskets slidably connected to the inner wall of the mounting blocks. Through the cooperation of springs, sealing gaskets, and mounting blocks, unidirectional limiting of the air holes within the nozzle is achieved, thereby preventing the solution inside the nozzle cavity from flowing into the air holes, ensuring the air intake of the nozzle cavity, and thus guaranteeing the atomization effect. The cooperation of a first sealing ring and a second sealing ring seals the connection between the nozzle and the spray pipe, preventing leakage at the connection and improving the atomization effect of the spray gun.

This utility model provides a miniature cofferdam cover for pile foundations. The miniature cofferdam cover includes: a pile foundation, an outer shell comprising at least two outer shell segments detachably connected around the pile foundation, and a water-stop membrane, in the form of a strip, surrounding the pile foundation with its bottom end lower than the bottom of the outer shell. A fixing clip is provided on the outer shell segment, comprising a threaded rod and a fixed end movably connected to the threaded rod. The fixed end moves towards the pile foundation under the push of the threaded rod. Connection holes and water-stop strips are provided at the edges of the outer shell segment. By using the outer shell segments to surround the pile foundation, the pile foundation is isolated from the surrounding water, providing space for water-based operations. The water-stop membrane isolates water at the contact point between the outer shell and the pile foundation, preventing external water from flowing into the outer shell from the connection point. The multi-segment connection method of the outer shell segments facilitates the transportation and installation of the outer shell. Furthermore, the structure of the outer shell, which can be completed in two segments, has fewer structural components, is easy to assemble, and saves on cofferdam costs.

The utility model belongs to the field of green plants, and particularly relates to a standard tree ring mold which comprises a green plant fixing ring, a supporting rib and an external fixing ring, one end of the supporting rib is detachably installed on the outer side of the green plant fixing ring in an inserted mode, and the other end of the supporting rib is detachably installed on the inner side of the external fixing ring in an inserted mode. The hard blocking ring is detachably clamped on the external fixing ring; and the shaping scraping piece is detachably mounted on the external fixing ring in an inserted manner. During installation, all the components are combined with a tree trunk as the center, then ridging and shaping are conducted on the outer side of the external fixing ring, the manufactured tree rings are consistent in size, neat, attractive and firm, the shaping scraping piece can shape mixed soil, one side of the shaping scraping piece expands outwards to expand collection of the soil, and the shaping scraping piece is convenient to use. And by means of the handle arranged on the outer side of the shaping scraping piece, a worker can better exert force, a large amount of time is saved, and meanwhile the working efficiency is improved.

The utility model discloses a vertical shaft type water inlet and outlet structure of permanent and temporary combination in the technical field of water conservancy and hydropower engineering, including vertical shaft diffusion section, the outside of vertical shaft diffusion section is from top to bottom sequentially provided with a plurality of arch wall, the periphery fixed connection of vertical shaft diffusion section has a plurality of pile foundation, the arch wall is located between pile foundation and vertical shaft diffusion section. The utility model discloses a pile foundation is arranged outside vertical shaft diffusion section, can guarantee the stability of vertical shaft excavation process, sets up the arch wall between pile foundation and vertical shaft diffusion section, and the arch wall is as supporting wall body and structure outer wall simultaneously, need not to set up horizontal temporary support additionally, guarantees the safety of excavation process, and also does not have the problem of dismantling, to reduce the construction step, shortens the period of construction.

The utility model discloses a deck illuminating lamp stable installation device which comprises a deck with an installation hole formed in the top, a lampshade is clamped in the installation hole, an annular clamping groove is formed in the outer circumference of the lampshade with a sealing ring fixed inside, the annular clamping groove and the installation hole are connected in a matched and clamped mode, and the inner circumference of the lampshade is connected with a fixing ring through threads. A threaded groove is formed in the inner circumference of the fixing ring, the inner circumference of the fixing ring and the outer circumference of the bottom of the lampshade are mutually attached and sealed, mounting mechanisms are arranged on the two sides of the bottom of the fixing ring, lamp holders are clamped in the mounting mechanisms, illuminating lamps are arranged on the tops of the lamp holders, and flow holes are formed in the two sides, close to the lampshade, of the deck; a guide hole communicating with the flow hole is formed in the deck, and one end of the guide hole extends to the attaching position of the mounting hole and the lampshade. According to the utility model, water is prevented from entering the lower part of the deck from a gap, the sealing effect of the whole structure is promoted, and the effect of protecting the illuminating lamp and the lamp holder is also achieved.

The utility model discloses a wallboard pre-embedded filler wall pouring material pouring funnel, which belongs to the technical field of pouring of secondary structure filler walls and constructional columns in constructional engineering and comprises a funnel body, funnel additional ribs, funnel baffles, straight thread sleeves, built-in steel bars and grouting holes. By changing the appearance design of the pouring material pouring funnel and the using process of the pouring material pouring funnel, waste of a large amount of manpower and material resources caused by chiseling in the traditional process is avoided, good construction conditions are brought to popularization of pouring construction of the infilled wall, construction efficiency is improved, and construction cost is saved.

The present invention relates to a filter element (30) having a filter medium (32) and a first end plate (36), the filter medium circumferentially surrounding the longitudinal axis (33) of the filter element (30), wherein the filter medium (32) is capable of being flowed from the radial outside to the radial inside, wherein the filter element (30) has a primary air passage (46) and a secondary air passage (54) preferably located at the center, wherein the filter medium (32) has an axial recess (58) on the first end side (34), and the channel (56) of the first end plate (36) forming the secondary air passage (54) extends in the axial recess. Furthermore, the present invention relates to an air filter (10) having a filter housing (12) and such filter element (30), the filter housing having an unpurified air inlet (18), a primary air outlet (20) and a secondary air outlet (22), the filter element separating the unpurified side (42) communicating with the unpurified air inlet (18) and the purified side (44) in the filter housing (12), wherein the primary air outlet (20) is connected to the purified side (44) via the primary air passage (46), and the secondary air outlet (22) is connected to the purified side (44) via the secondary air passage (54).

The utility model discloses a kind of plastic extruders for PVC plastic particle production, including conveying bucket, the front end of conveying bucket is fixedly connected with shunt head, the outer wall of shunt head is fixedly connected with a plurality of solenoid valves, the outer wall of solenoid valve is fixedly connected with discharge head. When plastic masterbatch is heated and melted, it can flow into from any one or several separation ports respectively, and several outlets on discharge head can be simultaneously connected with several same or different molds, so as to improve the efficiency of processing, and the corresponding outlet can be opened by solenoid valve, so that it can avoid that hot melt masterbatch flows into unnecessary outlet.

The utility model provides a spherical pharmaceutical all-in-one machine. The spherical pharmaceutical all-in-one machine comprises a bottom plate, a first supporting frame, a heightening seat, a containing tank, a main shaft, blades, a connecting frame, a scraping plate, a spring, a rotating cylinder, a first bearing seat and a second bearing seat. The two ends of the spring are connected with the connecting frame and the scraper respectively, and the connecting frame is connected with the outer wall of the main shaft, so that when the main shaft drives the connecting frame to rotate, the connecting frame drives the scraper to rotate through the spring, the spring is stretched through centrifugal force, and the scraper is attached to the inner wall of the containing tank; and therefore, the crystals adhered to the inner wall of the accommodating tank can be scraped by the scraping plate, so that the crystals can be conveniently collected.

The utility model relates to the technical field of toughened glass production, a kind of edge grinding device for toughened glass production, including polishing motor, the output end of polishing motor is fixedly connected with coupling, coupling is fixedly connected with polishing disc, further include: remove dust's dust removal brush after glass polishing, the transmission assembly that drives dust removal brush to rotate dust removal is installed on the polishing disc, the transmission assembly is installed on polishing motor by support rod;Protective shell is protected inside transmission assembly;Dust removal brush in the utility model is synchronous with polishing disc rotation in polishing process, timely remove dust and residue on glass, so that staff can clearly observe the state after glass polishing, quickly find uneven polishing, missing area or overpolishing etc. Problem, avoid the glass with defect to flow into subsequent process, guarantee the polishing quality of product from the source, reduce the rework operation carried out due to product unqualified.

This invention discloses a catalytic reactive distillation unit, apparatus, and method. The catalytic reactive distillation unit includes: a reaction mass transfer channel, the upper end of which receives low-temperature liquid-phase reactants flowing downwards, and the lower end of which receives high-temperature gas phase flowing upwards; the reaction mass transfer channel contains a catalyst layer and a packing layer, with the catalyst layer positioned above the packing layer, and a first space between them; and a rising gas bypass, located outside the reaction mass transfer channel and connected to the first space. The liquid-phase products after the catalytic reaction merge with the high-temperature gas phase in the packing layer and undergo gas-liquid mass transfer. The rising gas phase after mass transfer carries the light components from the liquid-phase products into the rising gas bypass, completing mass transfer separation. This invention, through the setting of the rising gas bypass, not only increases the gas phase flow rate and effectively reduces the pressure drop within the reaction mass transfer channel, but also effectively solves the space occupation problem of the equipment. This invention can clean the blockage of the catalyst filter without additional power and can realize online replacement of the catalyst and / or packing.

The utility model discloses a valve assembly for injecting sulfuric acid into a tank car, which relates to the field of valves and comprises a valve body, a shell is mounted at the top of the valve body, and a worm is connected inside the shell through a sealing bearing. Through the arrangement of the filter screen, the oil inlet cylinder, the oil injection pipe and the oil storage tank, when the worm, the worm gear, the driving bevel gear and the driven bevel gear need to be lubricated, it is determined that sulfuric acid does not need to be conveyed through a pipeline, meanwhile, sulfuric acid does not flow into the valve body, and at the moment, a worker can rotate the threaded sealing cover to lubricate the worm, the worm gear, the driving bevel gear and the driven bevel gear. The threaded sealing cover is screwed out of the oil inlet cylinder, then the motor is started, so that the driving bevel gear, the driven bevel gear, the worm and the worm gear rotate slowly, a worker injects lubricating oil into the oil inlet pipe, the filter screen can filter the lubricating oil, and the lubricating oil flows into the oil injection pipe after being filtered and flows to the meshing position of the worm and the worm gear. Therefore, the worm gear and the worm can be lubricated firstly.

The utility model discloses a display module structure capable of improving a bonding abnormity detection effect, which comprises display glass and a module FPC, a bonding connection end of the module FPC is connected to a single-layer area of the display glass in a bonding manner, solid copper wires formed by etching are respectively formed on the left side and the right side of the bonding connection end of the module FPC, and the solid copper wires are arranged on the left side and the right side of the bonding connection end of the module FPC. The solid copper wire is tightly attached to the lower edge of a pressing contact area of the module FPC and the display glass, and the solid copper wire has a preset width and a preset length. According to the utility model, the solid copper wire is arranged at the lower edge of the lamination contact area of the module FPC and the display glass in an etching manner, so that the solid copper wire can be used for judging that green oil is suitable for qualification after silk-screen printing of the green oil in a single-layer area, AOI automatic equipment and manual inspection are facilitated, the detection efficiency and the product yield are improved, and products with abnormal bonding are prevented from flowing to the downstream.

The utility model discloses a kind of louver back glue devices, it is related to louver back glue technical field, including the rack for supporting entire device, for supporting louver and carrying out work station transfer slewing mechanism, for the louver that is supported on slewing mechanism carries out gluing gluing mechanism, for the supply material mechanism for supplying louver to be coated, for placing louver on the supply material mechanism on the feeding mechanism on slewing mechanism, for the louver that is coated with back glue is taken off discharging mechanism, for the storage mechanism for containing louver that is coated with back glue;Wherein, the feeding mechanism, the gluing mechanism and the discharging mechanism are sequentially arranged around the slewing mechanism circumference;Beneficial effect lies in: the device is improved efficiency by automation closed loop operation, double-station design adapts mass production;Rotary gluing and accurate positioning ensure quality;Optimization feeding and discharging avoid jamming, detection function controls quality, compact structure is easy to maintain.

The invention relates to a front baffle plate assembling structure of an RS25 wave band switch assembling automatic machine, which comprises a rack and an electric control box, the top of the rack is also provided with a front baffle plate vibration disc, a shaft sleeve vibration disc and a clamp spring vibration disc which are used for loading various parts, and the middle of the top of the rack is provided with a carrier rotating mechanism; a shaft sleeve feeding mechanism, a front baffle buckling mechanism, a riveting mechanism and a front baffle neglected loading detection mechanism are arranged at the top of the rack and surround the carrier rotating mechanism. The shaft sleeve feeding mechanism, the front baffle buckling mechanism, the front baffle neglected loading detection mechanism, the riveting mechanism and the follow-up assembling mechanism are sequentially machined by the switch assembling mechanisms. According to the front baffle plate assembling structure of the RS25 wave band switch assembling automatic machine, a surrounding type layout and a rotary carrier design are adopted, a plurality of working procedures of shaft sleeve feeding, front baffle plate buckling, neglected loading detection, riveting and the like are integrated, the occupied area of equipment is greatly reduced, and the space utilization rate is improved.

A batch traceability information management method for garbage bag products involves installing a laser engraving device at the film feeding end of the garbage bag production line. The laser etches a micro-QR code pattern, composed of a dot matrix, onto a specific area of ​​the film surface. Embedded within this micro-QR code is initial coding data containing the raw material batch number, production date, and a unique production line identifier. Each pixel of the micro-QR code is less than 0.1 mm in diameter, and the spacing between adjacent pixels is 0.2 mm, forming an invisible identification layer. This invention effectively avoids the risk of failure caused by wear, dirt, or human intervention, as with traditional labels, by using a high-energy laser beam to etch a micro-QR code pattern on a specific area of ​​the film surface. The initial coding data includes the raw material batch number, production date, and unique production line identifier, ensuring the inseparability of product identity and raw material origin.

The utility model relates to the related technical field of aluminum alloy windows, in particular to a safe sealing type aluminum alloy window which comprises a window frame, a window sash body, a lock body, a hollow glass body, an elastic element, a multi-layer sealing component, a water baffle and a drainage component. According to the safe sealing type aluminum alloy window, the window sash body is locked or opened through the lock body, the air tightness and the waterproofness of the window in the closed state are guaranteed through the elastic element and the multiple layers of sealing components, the water baffle and the drainage component further prevent rainwater from invading, and accumulated water is drained in time; therefore, the overall usability and the service life of the window are improved.

The utility model relates to the technical field of workpiece production, and provides an automatic detection device for shaft workpieces, which comprises a feeding unit, a first detection unit, a conveying unit, a second detection unit, a third detection unit, a fourth detection unit and a sorting unit, and realizes full-automatic operation from feeding to final classification of the shaft workpieces. The detection efficiency is obviously improved; wherein the first detection unit is used for carrying out visual detection on a workpiece, the second detection unit is used for carrying out length dimension detection on the workpiece, and automatic transfer of the workpiece is realized through switching of the rotating seat between a first working position and a second working position; the third detection unit is used for performing eddy current flaw detection on the workpiece; the fourth detection unit is used for detecting the eccentricity of the workpiece; through a method of combining multiple detection modes, the quality condition of the shaft workpiece can be comprehensively and accurately evaluated, and it is ensured that each outgoing product meets the high-standard quality requirement.

A laundry treating apparatus includes a cabinet, an outer tub, a drum, a top cover configured at an upper portion of the cabinet, having an opening portion that communicates an inside and an outside of the cabinet, a detergent supply portion that supplies a detergent to the outer tub, and a detergent water supply conduit that supplies water to the detergent supply portion, the detergent supply portion including a detergent box that provides a first space that stores the detergent, and a connection conduit that connects the detergent box and the outer tub, the outer tub including a detergent inflow conduit formed at a position lower than an outer tub cover of the outer tub main body and connected to the connection conduit, the cabinet including a front side wall, a rear side wall, a left side wall, and a right side wall that form an internal space of the cabinet, the upper portion of the front side wall of the cabinet including an extension portion that is recessed downward, thereby forming an access space that communicates the inside and the outside of the cabinet between the top cover, and a portion where the detergent box and the connection conduit are connected is exposed to the access space.

The present application relates to the technical field of pesticides, and discloses a phase change eutectic carrier embedded with a photothermal agent as well as a preparation method and application thereof.The phase change eutectic carrier embedded with the photothermal agent mainly comprises a photothermal agent, a fatty acid, an organic solvent and water.The preparation process of the preparation is simple, the conditions are mild, a large number of additives are not needed, and the preparation can be quantitatively prepared.The dispersion and utilization rate of the bactericide can be improved through eutectic, and the effectiveness of the bactericide can be improved.The preparation is suitable for various application modes such as seed coating and soil treatment, can play various synergistic functions such as temperature response release, prolonging drug retention time, enhancing adhesion and permeability on the surface of pathogenic bacteria, and is a kind of green and efficient bactericide dosage form, which has a wide application prospect in green and intelligent agriculture.

The utility model discloses a greening wall shaping cultivation device for greening engineering, which belongs to the technical field of building greening and comprises a base, a supporting plate is fixedly mounted at the center of the upper portion of the base, and a water tank is fixedly mounted on one side of the supporting plate and above the base. And a collecting tank is fixedly mounted above the base and located on the other side of the supporting plate. According to the greening wall shaping cultivation device for the greening engineering, by arranging the collecting groove, the one-way filter pipe and the water tank, water which is not absorbed by plants in the cultivation box flows into the collecting groove, the one-way filter pipe of the collecting groove filters water flow, and meanwhile a one-way valve in the one-way filter pipe allows the water flow to flow into the water tank from the collecting groove; the water flow is prevented from reversely flowing into the collecting groove from the water tank, the situation that redundant water flows to the periphery of the device and influences the surrounding environment is avoided, meanwhile, the recycled water flow can be recycled, the water resource utilization rate is increased, and the operation cost of greening engineering is reduced.

The application relates to the field of object appearance detection, in particular to a cutting edge appearance detection method and a test device, which comprises dynamic clamping and pose calibration of a cutter through cooperative movement of a slide rail and a clamp, control of a Keyence digital microscope to scan the full length of the cutting edge along a spiral path, processing and segmentation of collected images, establishment of a defect feature database for defect identification, generation of a three-dimensional defect distribution heat map and transmission to an MES system, physical marking of defective products, and the like. The test device comprises a rack assembly, an adaptive clamp module, a multi-axis vision detection system, an angle control mechanism and a control unit and the like. The application can achieve the technical effects of high-precision and rapid detection of cutting edge appearance defects, realization of defect identification and marking, improvement of detection efficiency and quality, guarantee of stable and reliable production process and the like.

The utility model relates to the technical field of indoor decoration waterproofing, in particular to an indoor decoration waterproof structure which comprises a floor slab, a waterproof layer arranged on the surface of the floor slab, a permeable layer arranged on the surface of the waterproof layer, a cement mortar leveling layer laid at the top end of the permeable layer, and ceramic tiles laid at the top end of the cement mortar leveling layer. The bottom end of the floor is fixedly connected with a sewer pipe, the top end of the sewer pipe is fixedly connected with a first filter screen, the top end of the first filter screen is provided with a floor drain, and the bottom end of the floor drain is fixedly connected with a drainage pipe. The drainage pipe is inserted into the middle of the first filter screen, sewage on the surface of the ceramic tile can flow into the sewer pipe through the drainage pipe, water flowing into the surface of the waterproof layer through ceramic tile gaps can flow into the sewer pipe through the first filter screen, and therefore the effect that drainage on the surface of the waterproof layer can be achieved while drainage on the surface of the ceramic tile is not affected is achieved.

The utility model discloses a turbine rotor blade, a turbine rotor and an engine turbine, which belong to the technical field of turbine engines and are used for solving the problem of insufficient connecting strength of an extension root and a tenon caused by overweight of the turbine blade. The turbine rotor blade provided by the utility model comprises a cavity, one end, positioned at the blade tip, of the cavity is provided with an opening, and the other end of the cavity is closed; the cavity sequentially comprises a first cavity section, a second cavity section, a third cavity section and a fourth cavity section in the radial direction of the blade. The first cavity section and the second cavity section are formed in the center of the interior of the tenon; the third cavity section and the fourth cavity section are respectively arranged in the extension root and the blade body and are respectively matched with the extension root and the blade body in appearance; the chordwise width of the first cavity section and the second cavity section along the blade is smaller than the chordwise width of the third cavity section along the blade. According to the turbine rotor blade, the strength and the rigidity of the blade are effectively considered, and the overall performance of an engine turbine is improved.

The invention relates to the technical field of conveying equipment, in particular to a conveying mechanism for an electronic piano bow rod automatic production line. The device comprises a main conveying machine body, a supporting frame is arranged on the main conveying machine body, a visual detector is arranged at the bottom of the supporting frame, an L-shaped base is arranged on a supporting leg at the tail of the main conveying machine body, a transposition driving seat is movably arranged on the L-shaped base, and the top of the transposition driving seat is in driving connection with a transferring assembly. The transfer assembly comprises a transposition base movably arranged at the top of the transposition driving base, a rotating support is movably arranged on the transposition base, and a transfer support is arranged at the top of the rotating support. By arranging the weighing sensor, the weight of the bow rod can be verified, the actual weight can be compared with the standard weight, secondary comparison can be carried out, preliminary detection of the product quality is achieved, unqualified products are prevented from entering the subsequent packaging link, the ex-factory qualified rate of the products is increased, the procedure of independent quality inspection is omitted, and the overall production efficiency is improved.

This utility model relates to a riverbank structure that integrates pollution mitigation and ecological greening, belonging to the field of riverbank structure technology. It includes a polluted soil layer along the riverbank and a riverbed. A barrier mechanism is provided on the right side of the polluted soil layer. The barrier mechanism includes a first clay impermeable layer, a first ecological gabion retaining wall, a soil layer, a second clay impermeable layer, two second ecological gabion retaining walls, and ecological greenery. This riverbank structure, integrating pollution mitigation and ecological greening, isolates the polluted soil layer from the riverbed by setting the first clay impermeable layer and the first ecological gabion retaining wall on the right side of the polluted soil layer, preventing liquid pollutants from flowing into the riverbed. When the first clay impermeable layer is damaged, the second clay impermeable layer can provide further protection. The two second ecological gabion retaining walls enhance the stability of the riverbank structure and reduce the risk of breaches.