55results about "Water resource protection" patented technology

The present application relates to the technical field of ecological restoration, in particular to a new ecological substrate for ecological restoration of river bank slope and its preparation method and application. The raw materials of the new ecological substrate include planting soil, basalt fiber, nano-silicon dioxide and cement. The preparation method comprises the following steps: taking the planting soil, crushing, air-drying and then passing through a 2mm sieve; mixing and stirring the sieved planting soil, basalt fiber, nano-silicon dioxide and cement to obtain a solid mixture, then adding water to the solid mixture until the water content is 18.5-19.5%, and stirring uniformly to obtain the new ecological substrate. The new ecological substrate can greatly improve the strength of the soil, improve the toughness of the soil and enhance the anti-cracking property of the soil body, reduce the dependence on cement, and reduce carbon emissions. On the other hand, the substrate has a certain gain effect on plant growth, which can significantly promote the adjustment of soil properties and hydrological environment, and also has a positive effect on carbon sequestration.

This invention discloses a river water ecological restoration and purification device, belonging to the field of river water purification technology. It includes a base plate with an air cushion installed at its bottom. Above the base plate, from front to back, are sequentially arranged an ice-breaking and salvage conveying component, a collection and separation component, a water purification component, and an oxygenation component. The collection and separation component contains a vibrating filter component. A drive component is located between the ice-breaking and salvage conveying component and the collection and separation component. A propeller is fixedly installed at the rear of the base plate, and a power component for unmanned operation is installed on the top of the base plate. This invention, through its integrated ice-breaking and salvage conveying component, collection and separation component, vibrating filter component, water purification component, and oxygenation component, highly integrates multiple functional modules such as ice breaking, salvage, conveying, solid-liquid separation, water purification, and oxygenation, filling the gap left by the inability of most cleaning equipment to be used in winter and achieving uninterrupted river ecological restoration.

The utility model discloses a kind of narrow river embankment retaining wall steel frame concrete combined support reinforcing devices, it is related to river regulation technical field, including combined steel frame bottom beam, combined steel frame stand column is fixedly welded in the two sides of combined steel frame bottom beam, excavation groove is equipped on rotary jet pile foundation, combined steel frame bottom beam is placed in excavation groove, bottom beam concrete that combined steel frame bottom beam is wrapped is poured in excavation groove, a layer of flat cement paving layer is laid above rotary jet pile foundation, silt paving layer is laid above cement paving layer, connecting reinforcement is equipped between combined steel frame stand column, combined steel frame stand column and connecting reinforcement are laid with combined steel frame stand column interplate wall, combined steel frame stand column interplate wall is fixedly attached in the disease retaining wall of river.This utility model is directed to narrower river, especially building area, by layer laying, support using steel frame, structure is stable, not easy to collapse, river is easy to clean while can guarantee ecological environment, practicality is strong, suitable for promotion.

The utility model discloses a universal hidden type drawing bubbler which comprises a hose, an upper connector, a first fixing plate, a first through hole, a lower connector, a change-over switch, a bubbler body, a sealing ring, a shower head cover and a water outlet hole. One end of the shell is fixedly connected with an end cover, a first screw hole is formed in the end cover, the other end of the shell is sleeved with a fixed seat, a second screw hole is formed in the fixed seat, and a hose, an upper joint and a lower joint are arranged in the shell; the hidden hose structure is designed, the two ends of the hose are attracted and fixed through the magnet connectors, the shower head can be taken and used only by being slightly pulled during use, automatic return attraction is achieved after use, the problem that a hose of a traditional product is exposed and wound is solved, the connectors are fixed through screws, the assembly process is greatly simplified, and compared with a traditional welding or buckling mode, the assembly efficiency is greatly improved. The assembly efficiency is remarkably improved, the production cost is reduced, meanwhile, the water outlet effect is controlled through two gears, a gear change-over switch is added, and a user can use the faucet conveniently.

The application discloses a water conservancy slope construction process for ecological restoration, relates to the technical field of slope ecological restoration of water conservancy projects, and adjusts the slope of a river embankment through stacked stone cage net boxes; meanwhile, the net cage structure of the stone cage net box enables suspended matters and silt in water to be deposited in the gaps of the stone blocks, prevents excessive scouring of the silt, and, with the flexibility of the stone cage net, stabilizes the foundation to reduce uneven settlement of the foundation; further, an ecological concrete layer is cast in situ on the stone cage net box, and a geotechnical unit is laid on the ecological concrete layer; the three-layer impact resistance of porous bricks + the geotechnical unit + ecological concrete resists the scouring of water flow with a higher flow rate, meanwhile, nutrient soil fills the pores of the ecological concrete, the geotechnical unit solidifies the soil, and the plant root system can penetrate the ecological concrete and enter the stone cage net, so that the stability of the plants is strengthened; the process organically combines the flexibility of the stone cage net, the porosity of the ecological concrete, the soil solidification of the geotechnical unit and the rigidity of the porous bricks, and forms a composite slope protection system with layered defense.

The application relates to a river channel earthwork excavation depth measuring scale, belonging to the field of river channel engineering measurement technology, which comprises a base frame body, a scale rod and a driving assembly, the scale rod vertically slides relative to the base frame body, the driving assembly is used for controlling the movement of the scale rod, further comprises a transition cylinder, the transition cylinder and the base frame body are slidably connected, the sliding direction is vertical, the driving assembly is used for applying a vertical movement propelling force to the transition cylinder, the transition cylinder is used for bearing the gravity of the scale rod, and the bottom end of the scale rod is lower than the bottom end of the transition cylinder. The river channel depth is measured through the scale rod, and the measurement accuracy is high.

The present application relates to the technical field of river dredging, and especially discloses a river self-adaptive dredging system and method based on water level intelligent sensing, which is executed by a central control unit and comprises four steps of model construction and benchmark calibration, real-time monitoring and siltation diagnosis, accurate survey and operation planning, closed-loop execution and model synchronization; the system comprises a central control unit, a water level intelligent sensing array, a terrain scanning device and a dredging machine; the present application dynamically determines the siltation state by constructing a three-dimensional digital riverbed model in combination with water level sensing data, generates an accurate dredging operation scheme, and realizes closed-loop control of the operation; the present application takes into account the dredging needs of navigable and ecological rivers, improves the accuracy and automation level of dredging, reduces the operation cost, promotes the intelligent transformation of river management, and provides an efficient solution for long-term river management.

The utility model relates to the technical field of revetment retaining wall repair auxiliary tool, and disclose a simple structure's hanging basket working platform, include: a plurality of hanging baskets are hung on the retaining wall, and footboard and protection assembly are arranged between adjacent hanging baskets respectively, the hanging basket includes two parallelly arranged hanging basket skeletons and the cantilevered frame perpendicular to two hanging basket skeletons, a plurality of connecting rods are connected between two hanging basket skeletons, the top of cantilevered frame is connected with the bottom of footboard, and the butt joint rod of installation protection assembly is symmetrically arranged on the cantilevered frame. The simple structure's hanging basket working platform, through setting up a plurality of hanging baskets, footboard and protection assembly, the hanging basket skeleton is hung on the retaining wall, and the footboard is installed on the cantilevered frame of adjacent hanging baskets, i. e. can be erected to form a work area, and the working space is convenient to build.

The utility model relates to the technical field of water saving of faucets, and discloses a water-saving faucet shell which comprises an outer shell, a protection assembly is fixedly connected to the outer side of the outer shell, a water stop assembly is arranged in the outer shell, and a flow guide assembly is fixedly connected to one end of the outer shell. According to the water-saving faucet shell, through the arrangement of the water stop assembly and the flow guide assembly, when the water-saving faucet shell is used, water flow impacts a connecting plate, so that an extrusion spring is in a compressed state, a water stop plug moves, the water flow enters a mounting box, and a flow guide plate in the mounting box combs and guides the water flow, so that water outlet is more uniform and gentle; when the faucet is closed, the spring is extruded to drive the connecting plate and the water stop plug to reset, and the water stop plug is tightly attached to a water flowing pipeline, so that the water flow is completely blocked, it is ensured that the faucet does not drip water or leak water, and water resource waste caused by water leakage and water dripping is reduced.

The present application relates to a river sewage outlet in-situ ecological restoration system design method based on water power optimization technology, in the wet season, different forms of stone cage are arranged near the sewage outlet drop point of the river, the purpose is to slow down the water flow, the principle is to take the parallel shoreline, the water flow of the river and the sewage outlet is generalized as a particle, and the reflection path of the water flow particle is assumed, numerical simulation and correction are adopted, and finally the optimal distance of the stone cage from the sewage outlet and the best length, quantity and spacing of the stone cage are determined; aquatic plants and fillers are planted in the target nearshore slow flow area to construct a subsurface flow-surface flow interaction area and improve the pollutant removal effect. In addition, considering the different water flow characteristics and pollutant purification characteristics in the dry season, a relatively closed area is constructed by using the stone cage, and the sewage of the sewage outlet is pretreated by using the electrochemical technology + membrane biological technology to relieve the water purification pressure of the river in the dry season. The beneficial effect is that the environment-friendly in-situ restoration technology can reduce the cost while achieving the best restoration effect.

This utility model discloses an ecological embankment suitable for river restoration and management, comprising a embankment body, a filter groove formed on one side of the top of the embankment body, a water filtration assembly fixedly installed inside the filter groove, a cavity formed inside the water filtration assembly, a filter screen fixedly installed in the middle of the water filtration assembly, a permeable layer fixedly installed on top of the filter screen, a filtration layer fixedly installed at the bottom of the filter screen, and a conical water-dispersing plate fixedly installed on top of the water filtration assembly. This ecological embankment for river restoration and management, through the setting of a permeable layer, a filtration layer, a photocatalytic coating, and a filter screen, enables the device to purify water flow during use, eliminate harmful substances in the water, thereby improving water quality, accelerating the efficiency of river ecological environment restoration, bringing convenience to users, improving the practicality of the device, and meeting the user's needs.

The application discloses a toilet flushing force experiment device and method, and relates to the technical field of performance detection of bathroom equipment, which comprises a toilet body, the toilet body comprises a water tank, a toilet ring, a siphon pipeline, a barrel body, a water outlet pipe, a water inlet pipe and a support seat, the bottom of the water tank is connected with the barrel body, the top of the barrel body is hingedly connected with the toilet ring, the outer wall of the bottom of the barrel body is fixedly connected with the support seat, and the bottom of the barrel body is sequentially connected with the water inlet pipe, the siphon pipeline and the water outlet pipe; and the adjusting assembly comprises an extension rod, an inner pipe and a fixing plate; by changing the pipe diameter of the inner pipe, the flow rate of water in the water inlet pipe can be adjusted, the pipe diameter value with the best flushing performance and being not prone to blockage can be screened, the suction capacity of the toilet for the internal dirt can be ensured, and the experiment is more convenient and fast, and different pipe diameters of the water inlet pipe and the siphon pipeline do not need to be replaced.

This invention relates to the field of environmental water conservancy and ecological restoration technology, and discloses a method for evaluating the effectiveness of river restoration based on multi-source data. The method includes: collecting target and measure-type indicator data; preprocessing the data; dividing the indicators into time-series and non-time-series types; applying exponential time decay weighting to the time-series indicators to generate time-series characteristic weighted indicators; performing robust standardization of the median absolute deviation with the non-time-series indicators to generate a standardized indicator dataset; calculating the proportion and information entropy of each standardized indicator within each sample to construct the total information entropy; calculating the residual average sum using the equally weighted average as the measured effectiveness value and the initial weighted average as the simulated effectiveness value; constructing a joint loss function; solving for the function with the goal of minimizing the joint loss function to generate the optimal weights for each standardized indicator; and finally calculating a comprehensive restoration effectiveness index to quantitatively evaluate the river restoration effect. This invention enables quantifiable and comparable evaluation of restoration effects in different watersheds and at different times.

The application discloses a bathing equipment with micro-bubble function, which comprises a casing, a water treatment module and a micro-bubble generator. The casing comprises a rear shell, an upper cover and an inspection cover. The inspection cover is arranged at the front of the rear shell, and the upper cover is arranged at the top of the rear shell. The upper cover is provided with a first mounting through hole, and the back of the rear shell is provided with a second mounting through hole. The water treatment module comprises a water valve module and a water treatment filter core. The water valve module comprises a shell, a temperature control valve core and a waterway control valve core. The shell is provided with a water inlet interface, a water outlet interface and an external interface. The micro-bubble generator comprises a throat pipe and a sintered filter core arranged at the throat of the throat pipe. The throat pipe is connected with the water outlet interface and extends to the outside of the casing through the first mounting through hole. The second mounting through hole is provided with a water inlet pipe which is connected with the water inlet interface. The waterway is connected with the external water pipe, the water leakage is reduced, the use reliability is improved, the compact structure of the bathing equipment is realized, and the volume of the whole equipment is reduced.

The application relates to the technical field of river ecological management, in particular to a combined river ecological management device, which comprises a supporting plate and a sliding sleeve. A water pumping assembly is arranged on one side of the supporting plate. The water pumping assembly comprises a water pumping pump. An elastic hose is fixed to the water inlet end of the water pumping pump through a clamp. A connecting pipe is connected to the bottom end of the elastic hose through a pipe joint. A water return pipe is connected to the water outlet end of the water pumping pump through a threaded groove. A garbage collecting device is arranged at one end of the connecting pipe. River water flowing into a stainless steel garbage can is pumped out by the water pumping pump and then flows back into the river through the water return pipe, so that the river water continuously flows into the stainless steel garbage can. When the river water flows into the stainless steel garbage can, leaves and garbage floating on the water surface flow into the stainless steel garbage can along with the water flow and are collected by a storage screen, so that the river is cleaned and the purpose of river ecological management is achieved.

The present application relates to the technical field of river sludge cleaning, in particular to a river sludge drying device; the pressure assembly and the chamber assembly are arranged on the conveying chain assembly, the sludge in the chamber assembly is automatically extruded by the pressure assembly through the action of the driving assembly, the drying progress of the sludge is accelerated, so that the conveying speed of the filter belt on the filter belt mechanism can be improved to shorten the overall drying period, and the bottom surface of the pressure assembly after the sludge is compressed is cleaned by cooperating with the cleaning assembly and the shaking assembly, so that the sludge is prevented from continuously accumulating and adhering to the pressure assembly, and the filter pressing effect on the sludge is gradually affected, the adjusting assembly is arranged between the sliding rod and the pressing block, so that the pressing block can keep the pressing effect on sludge of different thicknesses, the pressure assembly is prevented from being damaged due to excessive resistance of thick sludge, and the sludge cannot be effectively filter pressed; the problem that the gravity zone dehydration device of the filter belt type filter press in the prior art dehydrates the sludge at a slow speed is solved.

The application relates to a dredging connecting reamer frame of a slurry pump and relates to the technical field of the slurry pump, which comprises a first frame, a slurry pump body and a second frame, the second frame is fixedly connected to one end of the first frame, two positioning frames are fixedly connected to the inside of the first frame, two positioning plates are fixedly connected to the outside of the slurry pump body, screw holes are formed in the inside of the positioning frames and the inside of the positioning plates and are threadedly connected with bolts, and a side plate is fixedly connected to the inside of the first frame. The application solves the problem that when the displacement of the slurry pump is small, foreign matters such as stones and branches mixed in the slurry easily enter the pump cavity, causing the impeller to be stuck and the pipeline to be blocked, high-density particles such as sand and stone easily settle due to gravity during the conveying process, causing the pipeline to be blocked and the inner wall to be worn, and the slurry pump needs to be stopped and cleaned after working for a period of time, which not only seriously affects the continuity of operation but also increases the equipment failure rate.

The utility model provides a kind of water outlet nozzle for faucet, including water outlet shell, the water outlet perforation being passed and being opened in the water outlet shell, the water outlet block being liftable and being set on the water outlet shell in water outlet perforation, the limiting piece being set on the water outlet shell in water outlet perforation and being above water outlet block, the adsorption device being set between the limiting piece and the water outlet block, the sealing member being set between the water outlet block and the water outlet shell, the water outlet hole being opened on the water outlet block, the water outlet passage being opened on the limiting piece, the driving element being set on the water outlet block.

This invention discloses an ultra-efficient, water-saving high-pressure flushing device for toilets that uses air-water mixing. It can be used in conjunction with conventional toilets and is suitable for the construction or renovation of rural household toilets under the gray-black separation treatment model for village domestic sewage. The device includes a water storage tank, an air-water mixing pump, and a conduit. The water storage tank consists of a tank body and a lid. A conduit is located on one side of the bottom of the tank body, with a nozzle and toilet connector at the end of the conduit. The lid is reinforced with a cross beam, and the center of the cross beam connects to the air-water mixing pump. The air chamber of the air-water mixing pump is located on the upper part of the water storage tank. The pump body is connected to the cross beam of the lid by a reinforcing bracket. The lower part of the air-water mixing pump is connected to the air-water mixing pipe by sealing bolts. The air-water mixing pipe and the conduit are connected by a sealing ring. The upper end of the water intake pipe is connected to a Venturi adsorption chamber and fixed by the cross beam opening, while the other end is submerged at the bottom of the water storage tank. This device uses very little water (0.2 to 0.3 liters / flush), has strong cleaning power, a simple structure, does not require burial, and is easy to install and use.

To provide a wire net cage which can cope with a filling material having a small particle size while suppressing increase in manufacturing / conveying cost, and a method for manufacturing a stone-filled cage which is suitable for use of the wire net cage.SOLUTION: A wire net cage 1 for manufacturing a stone-filled cage forming a stone-filled cage structure in a cage method has a wire net cylinder body 2 formed by connecting opposite ends with a pair of abutting wire net pieces 6 and 6 having substantially half-split cylindrical shapes with connection coils 7, and a bottom lid 3 for blocking a bottom opening of the wire net cylinder body 2, wherein a plurality of hoops 5 composed of metallic wire materials are arranged at intervals in a height direction on the outer periphery of the wire net cylinder body 2. Thereby, there is provided a wire net cage 1 which enables provision of wire net pieces 6 and 6 using metallic wire materials thinner than conventional products, and is strong against impact due to action of the hoops.SELECTED DRAWING: Figure 1

The application relates to the technical field of ancient city landscape structures, improves the problem of difficult ancient city riverway recovery, and discloses an ancient city historical riverway landscape recovery structure and method, which comprises a groove body arranged along the length direction of a groove, the longitudinal section of the groove body is in U shape, a transparent plate is arranged on the upper portion of the groove body, and the transparent plate cooperates with the groove body to form a water storage cavity; a fluid medium is filled in the water storage cavity; a wave generator is arranged at intervals along the length direction of the groove body and comprises a shell, a swing plate and a driving assembly, the shell is connected in the groove body, the swing plate is arranged along the longitudinal cutting direction of the groove body, the lower portion of the swing plate is rotationally connected with the shell, and the driving assembly is arranged in the shell and used for driving the swing plate to reciprocating swing with the rotation position as the axis; and an LED lamp strip is arranged along the bottom of the groove body. The application can visually recover the riverway, display the charm of the ancient city with water and land chessboards, and promote the development of the ancient city tourism.

This invention discloses a method for sub-basin delineation in small and medium-sized watersheds based on a distributed model, comprising the following steps: S1, collecting digital elevation model (DEM) data, performing depression filling processing, and extracting preliminary river network information; S2, extracting the actual river system and calculating the elevation difference of the main stream grid; S3, adjusting the DEM data based on the elevation difference to optimize the river network extraction results; S4, calculating watershed morphological parameters and classifying the watershed using a manifold learning method; S5, constructing an optimal threshold calculation model for sub-basins and dynamically adjusting the sub-basin delineation threshold; S6, performing flow direction calculation, confluence analysis, and sub-basin delineation, and optimizing the sub-basin boundaries; S7, validating the method using a distributed hydrological model, analyzing the impact of the delineation results, and optimizing the sub-basin delineation parameters. This invention integrates multi-scale features, dynamic threshold optimization, and hydrological network topology to improve the accuracy of sub-basin delineation, boundary continuity, and hydrological simulation stability, achieving intelligent watershed delineation.

The application provides a river ecological restoration dredging device for hydraulic engineering and relates to the field of hydraulic engineering.The river ecological restoration dredging device comprises a dredger main body, a reamer bridge, a dredging reamer head, a dredging filter bin, a sewage pipeline, a conveying pipeline, a dredging filtering mechanism and a dredging efficiency increasing mechanism.The reamer bridge is hingedly connected to the front end of the dredger main body.The dredging reamer head is rotatably connected to the front end of the reamer bridge.The dredging filter bin is arranged at the rear of the dredger main body.The rear end of the conveying pipeline is arranged on the inner side of the dredging filter bin, and the front end of the conveying pipeline is connected with two groups of water inlet structures through a tee joint.The dredging filtering mechanism is arranged on the inner side of the dredging filter bin.The dredging efficiency increasing mechanism is arranged on the front end of the reamer bridge, which significantly improves the slurry pumping efficiency, avoids repeated dredging, greatly improves the overall dredging construction efficiency and solves the problem of residual mud on the dredging operation surface, which affects the overall dredging operation efficiency.

The utility model discloses a kind of flow state solidified soil soil screening machines, including filter basket, the top and bottom of filter basket are staggered and provided with through hole, respectively for feeding and discharging impurities;Filter basket is provided with plugging element, plugging element can non-synchronous closing top and bottom through hole, when top through hole opens, bottom through hole is closed, when bottom through hole opens, top through hole is closed, compared with prior art, the mixing of new and old materials is avoided, in the feeding stage, bottom through hole is closed, there is no screened material or impurities mixed into newly entered material;In the stage of discharging impurities, top through hole is closed, prevent new material from entering to affect the purity of impurity discharge, by controlling the non-synchronous opening and closing of plugging element to top and bottom through hole, the orderly progress of screening and impurity discharging process is realized, improve screening efficiency, in addition, the structure design is relatively simple, easy to realize and maintain.

This invention discloses a flushing valve and its control method. The flushing valve includes a valve body, a piston mechanism, and a control device. The valve body has a water storage chamber, a water inlet channel, a water outlet, and a piston chamber. The water inlet channel, water outlet, and piston chamber are all connected to the water storage chamber. The water inlet channel is used to connect to an external water supply source. The piston mechanism is located in the piston chamber and includes a flushing piston and a water control piston. One end of the flushing piston faces the water outlet. The control end of the control device is located in the piston chamber. The control method includes: adjusting the position of the water control piston in the movable chamber through the control device to adjust the water flow direction inside the piston chamber and control the flushing piston to close or open the water outlet. This invention can effectively shorten the path of the water flow from the water outlet. When flushing from the water outlet, the flushing water flow is independent of the piston chamber controlled by the control device, which can effectively increase the water flow rate and water pressure, resulting in a good flushing effect.

The utility model discloses a modularization detachable excavator device for river course dredging relates to the technical field of excavator, including the shovel, the inner wall bottom of shovel is fixedly connected with the connecting plate, the outside of shovel is equipped with the excavating mechanism, the excavating mechanism includes installation assembly and connecting assembly, installation assembly and connecting assembly mutually cooperate and use, installation assembly includes the limiting block, the limiting block equidistance fixedly connected at the both sides of connecting plate, the outside of connecting plate equidistance has the connecting claw of inserting, the side of connecting claw is close to the connecting plate and is equipped with the slot, the outside of connecting claw is equipped with the forepaw of setting up. The utility model discloses a modularization detachable excavator device for river course dredging, through setting up excavating mechanism, can according to the working condition need, to the claw of shovel is replaced and installed fast, uses more nimble and convenient, has improved the working efficiency of river course silt cleaning greatly, simple structure, and the practicality is stronger.

This invention belongs to the field of paleogeographic restoration technology in geological exploration, and discloses a method and system for river paleoslope restoration based on the combined use of well and seismic data. The method determines the underwater specific gravity based on sediment mineral composition; determines the ratio of surface friction shear velocity to particle settling velocity based on median grain size; calculates dimensionless grain size, settling velocity, and particle Reynolds number based on grain density, fluid density, grain diameter, and kinematic viscosity; obtains the point dam thickness from well logging curves, and obtains the initial full-bank depth after decompaction correction; obtains the paleochannel width from seismic data, corrects the initial full-bank depth, and obtains the full-bank depth of the river channel; and calculates the river paleoslope based on underwater specific gravity, median grain size, full-bank depth of the river channel, the aforementioned ratio, and dimensionless parameters. This invention achieves quantitative calculation of deep-time river paleoslope, significantly improving the accuracy and reliability of the assessment, and solving the problems of traditional methods relying on qualitative reconstruction, difficulty in data acquisition, and high computational costs.

This utility model discloses an adjustable river engineering physical model, belonging to the technical field of river engineering physical model technology. It includes: multiple columns with connecting mechanisms on each column; placement grooves on the columns, with a slidable support seat within each groove, and support rods detachably connected to the support seat; the tops of the support rods are covered with a surface film; and an adjustment mechanism and a limiting mechanism, both located on the support seat. This solution connects the columns using the connecting mechanisms, limits and fixes the support rods using the limiting mechanisms, and adjusts the height of the support seat and support rods using the adjustment mechanism. This allows each support rod to be positioned at the appropriate height according to the model's needs. Unlike current methods that rely on bricks and cement mortar, this design saves significant time and manpower, shortens the overall construction period, and is highly practical. Furthermore, all columns, support rods, and components in this solution are reusable, reducing waste, saving materials, and lowering costs.

This application relates to a river ecosystem management device, belonging to the technical field of river ecological restoration and environmental protection. It includes a float, with a deployment mechanism on the outside of the float, a moving mechanism on the top of the float, and a catching mechanism on the bottom outer side of the float. The deployment mechanism includes a storage tank, the outside of which is opened inside the float. An extraction tube is fixedly connected to the top inner side of the float, and a retrieval tube is slidably connected inside the extraction tube. A docking assembly is fixedly connected to the top outer side of the extraction tube, and a metering tube is fixedly connected to the top of the retrieval tube. This application features a vertically movable retrieval tube that, when sliding within the extraction tube, utilizes the principle of pressure difference to extract the treatment material from the storage tank. The material is extracted to the metering tube for volume control, thereby achieving the effect of stably spraying the treatment material into the river after quantitative control.

This utility model discloses a water-saving faucet showerhead, comprising a faucet showerhead with a water-saving mechanism at the water inlet. The water-saving mechanism includes an inlet sleeve, an upper water-passing plate fitted on the upper part of the inlet sleeve, several upper outer water-passing holes on the outer side of the upper water-passing plate, a lower water-passing plate at the bottom of the inlet sleeve, a spring mounted on the top of the lower water-passing plate to abut against the upper water-passing plate, several water-controlling columns at the bottom of the upper water-passing plate, and lower outer water-passing holes corresponding to the water-controlling columns on the lower water-passing plate. The bottom of the water-controlling columns gradually increases in size from bottom to top. This utility model has a simple structure. When the water pressure is high, the upper water-passing plate is impacted, and the lower part of the water-controlling columns connected to the upper water-passing plate enters the lower outer water-passing holes, controlling the water flow rate of the lower outer water-passing holes. The higher the water pressure, the more the lower outer water-passing holes are blocked, and the water flow rate slows down, avoiding unnecessary waste. It also ensures uniform water flow when the water pressure is unstable.