45 results about "Drainage design" patented technology

The invention belongs to the technical field of constructional engineering, and particularly relates to a basement bottom plate partitioned water filtering channel performance evaluation method. The method comprises the following steps: firstly, based on geological conditions of a target project and basement structure parameters, establishing a three-dimensional seepage geometric model comprising a basement bottom plate and a surrounding soil layer; then, corresponding hydraulic parameters are given to all soil layer materials and water filtering channel materials in the model; then, setting at least two calculation working conditions and carrying out steady-state seepage calculation under different underground water level conditions; and finally, comparing and analyzing the evaluation indexes of different working conditions, evaluating the performance advantages of the partitioned water filtering channel compared with a traditional drainage mode, and carrying out parameter sensitivity analysis and parameter selection. According to the method, the drainage performance of the basement bottom plate can be remarkably improved, the maximum pore water pressure below the bottom plate is reduced, the average seepage speed is increased, the drainage efficiency is improved, and scientific basis and technical support are provided for waterproof drainage design of the basement.

The location of auxiliary drainage systems in a field is mechanically designed based on field preparation information. [Solution] The auxiliary drainage design method (S1) includes an acquisition step (S11) of acquiring the boundary line of the target field, a cut-and-fill construction map showing the extent of cut and fill of the field, and the location of the field's drainage outlet; a reference drainage line generation step (S12) of searching for the longest straight line from the drainage outlet location to the boundary line and generating it as a reference drainage line; a first auxiliary drainage line generation step (S13) of rotating the reference drainage line by a predetermined angle with respect to the reference drainage line centered on the drainage outlet location to generate a first auxiliary drainage line from the drainage outlet location to the boundary line; and a second auxiliary drainage line generation step (S14) of generating a plurality of second auxiliary drainage lines from the reference drainage line to the boundary line, taking into account the extent of the fill.

The utility model relates to the technical field of freezer shelf glass, and discloses a foldable shelf glass device for a freezer, which comprises a freezer body, the inner wall of the freezer body is fixedly connected with a limiting bolt, the inner wall of the freezer body is fixedly connected with a fixed transverse column, the surface of the fixed transverse column is hinged with a rotating support plate, and the rotating support plate is fixedly connected with the limiting bolt. The surface of the rotating supporting plate is fixedly connected with a first storage rack, and a liquid leakage groove is formed in the first storage rack. The hooks are arranged to be in contact with the inner wall of the freezer, the rotary supporting rods are inserted into the limiting clamping frames to form mechanical interlocking, the first shelf and the second shelf are made of glass materials, metal limiting components are combined, and through a foldable structure, an efficient drainage design, a linkage fixing mechanism and humanized operation components, the storage rack is convenient to use. The three core advantages of space saving, stability improvement and convenience in cleaning of the freezer shelf are achieved, meanwhile, transparency, visualization and corrosion resistance are considered, and the freezer shelf is suitable for diversified storage requirements of household and commercial freezers.

The invention relates to the technical field of road traffic safety and drainage design, in particular to a road guardrail base with anti-collision and drainage functions, the road guardrail base comprises a top connecting structure, a bearing structure and a drainage notch, the top connecting structure is fixedly connected with a concrete guardrail through embedded steel bars, the bearing structure is located below a pavement structure, and the drainage notch is located below the bearing structure. The drainage opening is formed in the top connecting structure, and the drainage opening is used for assembling a transverse water collecting ditch; the top connecting structure and the bearing structure are arranged at the top of the retaining wall, and the ground cloth difformis and the retaining wall can move relatively; the transverse water collecting ditch comprises an inlet and a drainage part, the drainage part is used for draining water transmitted at the inlet, and the inlet is formed between the transverse water collecting ditch and the concrete guardrail; longitudinal blind ditches are formed in the pavement structure and are in through connection with the drainage parts of the transverse collecting ditches through drainage pipes; therefore, under the condition of saving consumables, the influence of vehicle collision on the retaining wall is reduced through the ground cloth dips, and meanwhile the drainage capacity of a road is improved.

The application discloses a kind of foundation pit water inflow multi-source data intelligent prediction method, comprising: obtaining the depth of dewatering inside foundation pit, water level outside foundation pit, water pressure at different depths, actual water inflow and soil permeability coefficient;Determine the calculation area, and establish the control equation describing steady-state groundwater seepage and its corresponding constant head, constant flow boundary condition, while clearly defining the area continuous condition on both sides of foundation pit enclosure structure;Build depth learning neural network inside and outside foundation pit;Total loss function is constructed;Minimize the loss function using a phased optimization algorithm, thereby training network;Finally, the trained network is used to quickly and accurately predict water head distribution and water inflow inside foundation pit.The present application realizes the deep integration of physical mechanism and data-driven method, while ensuring that the prediction results strictly comply with physical laws, reduces the dependence on a large number of observation data, improves the accuracy and reliability of prediction, and provides better decision support for foundation pit dewatering design.

This invention discloses a bank protection reinforcement device for soil and water conservation, belonging to the field of water conservancy engineering technology. It includes a protective main body, with matching slots and blocks on both sides of the top for detachable horizontal splicing of multiple main bodies; the top also has two vertically adjustable support structures to adapt to uneven ground; the front end is a 60-degree slope with multiple through holes, into which fixing structures are movably inserted. The fixing structure includes a fixing column with a drainage channel, and the fixing column has a slot and drainage outlet communicating with the drainage channel, guiding soil moisture out while anchoring the bank protection. This invention, through modular splicing, adjustable support, and integrated anchoring and drainage design, solves the problems of poor adaptability, difficult maintenance, and high seepage pressure in traditional bank protection installations, significantly improving the stability and construction efficiency of bank protection.

The utility model relates to the related technical field of drainage pipeline fixation, in particular to a building water supply and drainage design pipeline penetrating plate fixing structure which comprises a fixing box. A cross-shaped pipe body is arranged at the top of the fixing box, and first clamping plates are arranged on one sides of the four ends of the cross-shaped pipe body. Under the cooperative action of the fixing box, the cross pipe body, the first clamping plate, the second clamping plate, the first rotating shaft and the linkage mechanism, the device can clamp the four ends of cross pipes of different specifications at the same time, the use range of the device is widened, practicability is improved, and the device is suitable for popularization and application. The problems that although an existing building water supply and drainage design pipeline plate-penetrating fixing structure can clamp a cross-shaped pipeline, the radian of the interior of a clamping block of the structure cannot be adjusted, only the cross-shaped pipeline of the specific specification can be clamped and fixed, the application range is small, and practicability is poor are solved.

This invention discloses an integrated pipeline irrigation and drainage collaborative optimization model construction method and system, relating to the field of farmland water conservancy engineering technology. The method includes: acquiring basic data to determine irrigation and drainage design flow rates; constructing an initial pipeline network topology based on this, establishing a pipeline network life-cycle resource cost assessment function and hydraulic constraints; using a non-dominated sorting genetic algorithm to iteratively obtain a set of pipeline network configuration schemes; in drainage mode, acquiring actual water level receding time-series data; performing drainage simulation based on a hydrodynamic model to output simulated time-series data; retrieving the actual friction coefficient caused by sediment deposition within the pipeline with the goal of minimizing the error between the two; before switching to irrigation mode, feeding back the actual friction coefficient to the hydraulic constraints for re-optimization, and outputting a corrected water distribution strategy. This method can dynamically compensate for changes in pipe wall resistance caused by sediment, ensuring pump head matching and stable terminal water pressure. This invention also provides a collaborative optimization system for executing the above method.

The application discloses a flushing faucet arrangement method and device based on building water supply and drainage, and a medium, and belongs to the technical field of building water supply and drainage design, and is used for solving the technical problems that the existing building water supply and drainage design is more dependent on manual operation, and is prone to low efficiency, poor consistency, high error rate and complicated modification. The method comprises the following steps: performing position identification processing on a building water supply and drainage model related to a basement flushing faucet, and obtaining object type information to be arranged; performing distance position judgment on a sump area in the object type information to be arranged related to a surrounding wall type, and obtaining a first flushing faucet arrangement strategy; performing distance position judgment on a door position area related to the surrounding wall type, and obtaining a second flushing faucet arrangement strategy; and determining a flushing faucet arrangement strategy of the building water supply and drainage model based on the first flushing faucet arrangement strategy and the second flushing faucet arrangement strategy.

The utility model discloses a drainage simulation device for building water supply and drainage design, and relates to the technical field of building engineering, the drainage simulation device comprises a water tank, the outer wall of the water tank is fixedly connected with a controller, the inner wall of the water tank is fixedly connected with a conveying pipe, the outer wall of the water tank is provided with a filtering mechanism, and the filtering mechanism comprises a first motor. By means of the protruding block and the filtering plate, when the protruding block moves, the filtering plate can be driven to move, then the filtering plate can drive the sliding rod to move, when the sliding rod moves, the spring can be extruded, and when the cam does not make contact with the protruding block, the spring can extrude the sliding rod, so that the sliding rod is reset; and then, the filter plate also resets along with the sliding rod, so that the filter plate moves up and down, the resource utilization rate is improved, the used water source can be effectively filtered and recycled, and the situation that the used water source contains particle impurities, and consequently the spray header is blocked is avoided.

This utility model relates to the field of kitchen storage equipment technology and discloses an adjustable modular kitchen utensil rack, including a base, a top plate, a support cylinder, and an adjustable connecting rod. The support cylinder is connected to the top of the base, and the top end of the adjustable connecting rod is connected to the bottom of the top plate by screws. The bottom end of the adjustable connecting rod passes through the support cylinder and extends into the interior of the support cylinder. This utility model supports stepless height adjustment in both directions through a bidirectional toothed ratchet and a slotted axial sliding spline connection design. Combined with the inclined wedge drive structure of the mechanical button, unlocking and resetting can be completed in a single operation, improving adjustment efficiency compared to traditional ratchet mechanisms and meeting the flexible adaptation needs of kitchen utensils of different heights (such as tall pots and short plates). In addition, the partitioned tray and the wire mesh frame are modularly installed through elastic buckles, while the drainage design of the filter plate and the water collection tank reduces cleaning time, achieving a balance between functionality and convenience.

This application relates to the technical field of anti-slip flooring for pigs, and more particularly to a surface protrusion structure for an anti-slip flooring for pigs, comprising a flooring body, anti-slip units, and support columns. The anti-slip unit includes flexible protrusion components, with staggered arc-shaped protrusions and a micro-textured layer. The support columns are height-adjustable via an adjustment mechanism, and a drainage channel connects to a waste collection pipe via a drain hole. This application optimizes the mechanical distribution through height-adjustable support columns and an elastic structure; the flexible protrusion components enhance anti-slip performance in wet environments; the drainage design improves cleaning convenience; and the mounting frame and reinforcing ribs enhance overall stability. This application solves the problems of insufficient anti-slip performance and inconvenient cleaning in existing flooring, and is suitable for pigs of different weights and hoof types, demonstrating significant practicality and innovation.

The utility model relates to road engineering technical field discloses a kind of rockfill embankment structures, comprising: upper embankment and lower embankment, a plurality of filler layers being arranged in the lower embankment, drainage structure being arranged in the one side of the lower embankment, reinforcing structure being arranged between each adjacent filler layer;Wherein, the reinforcing structure is used to enhance the connection between adjacent filler layers;The drainage structure is used to realize layered drainage.Utilizing the utility model, through reinforcing structure, interlayer stability is promoted, in combination with layered drainage design, the problem of rockfill embankment particle loss and poor drainage is solved.

The invention discloses a concealed pipe drainage design method and system for saline-alkali soil. The method comprises the following steps: firstly, acquiring a farmland or saline-alkali soil surface image, processing the image by adopting a machine vision technology, and automatically generating a mask pattern of a water accumulation area; then, according to the area of a mask connected domain, the number of drainage points is calculated in a self-adaptive mode, and drainage point coordinates are extracted through a clustering algorithm; a cost field is constructed in combination with a mask graph, an eight-neighborhood weighted grid graph is established, and a direction penalty function and an acute angle suppression rule are introduced in shortest path search, so that the generated drainage path is smoother, has no sawteeth and meets the construction requirements of concealed conduits. Automatic grouping is achieved through the shortest path distance between terminal points, and a multi-concealed-pipe layout scheme with the minimum total cost is obtained in combination with automatic selection of exit points and multi-threshold global search. According to the invention, full-process automation from image recognition to drainage path generation can be realized, and the intelligent level of saline-alkali soil treatment and farmland drainage design is improved.

The present application relates to the technical field of ecological restoration, and provides an open coal mine ecological restoration device and method designed for dike and drainage interception, which comprises a carrier for mounting ecological restoration operation tools, a frame for crossing above the dike / drainage interception ditch is arranged on the carrier, a plurality of groups of ground supporting assemblies for supporting the ground to lift the carrier are symmetrically arranged on the frame, the ecological restoration device further comprises a crossing assembly for driving the lifted carrier to move along the frame to cross the dike / drainage interception ditch; when the dike / drainage interception ditch needs to be crossed, first, the carrier orientation is adjusted so that the frame crosses above the dike / drainage interception ditch, then the ground supporting assemblies support the ground to lift the carrier to a certain height, then the lifted carrier is driven by the crossing assembly to move along the frame to cross the dike / drainage interception ditch, finally, the ground supporting assemblies are reset to make the carrier wheel body touch the ground, so that the dike / drainage interception ditch crossing action is completed.

The utility model relates to the technical field of glass curtain walls, in particular to a connecting device of a hidden framing glass curtain wall, which comprises toughened glass, a connecting column and a hydrophobic plate. The side face of the tempered glass is movably connected with a connecting rod, the connecting column is fixedly connected to the back face of the connecting rod, the two sides of the connecting rod are fixedly connected with a fixing frame, the tempered glass is movably connected to the inner side wall of the fixing frame, and the fixing frame is fixedly connected to the front face of the connecting column. The drainage plates are fixedly connected to the two sides of the connecting rod. The gap filling structure and the drainage design of the connecting device are optimized, the fixing screw is rotated to drive the pressing plate to move, the non-slip mat is pushed to be attached to the surface of tempered glass, gaps are effectively filled, an interlayer between the fixing frame and the drainage plate collects rainwater, the drainage slope guides water flow to be drained out of the drainage hole, and the baffle blocks impurities. Therefore, smooth drainage is guaranteed, and long-term stable operation of the curtain wall is guaranteed.

The utility model discloses a waste liquid treatment mechanism for a salt mist box, and relates to the technical field of waste liquid treatment. Comprising a base, fixing plates are symmetrically connected to the top of the base, a stirring barrel is fixedly connected between the two fixing plates, a connecting barrel is fixedly connected to the stirring barrel, the connecting barrel communicates with the stirring barrel, a liquid discharging pipe is fixedly connected to the top of the connecting barrel, and a plugging ball is arranged at the upper end of the liquid discharging pipe. And the diameter size of the plugging ball is larger than the inner diameter size of the liquid discharging pipe, the outer wall of the plugging ball is fixedly connected with a connecting rod, and the connecting rod is located on the inner side of the liquid discharging pipe. Through the automatic drainage design of plugging ball and liquid level linkage, the waste liquid in the salt mist box can be collected in time without manual intervention, full mixing reaction of the waste liquid and the agent is ensured through automatic adding of the neutralizing agent and cooperative operation of the stirring system, conversion of harmful substances is further accelerated under the action of the heating rod, the treatment efficiency is greatly improved, and the treatment cost is reduced. And the labor cost and the operation risk are effectively reduced.

The invention discloses a flushing faucet arrangement method and equipment based on building water supply and drainage and a medium, belongs to the technical field of building water supply and drainage design, and is used for solving the technical problems of low efficiency, poor consistency, high error rate and tedious modification caused by dependence on manual operation in the existing building water supply and drainage design. The method comprises the following steps: carrying out position identification processing on a basement flushing faucet on a building water supply and drainage model to obtain to-be-arranged object type information; distance position judgment under related surrounding wall types is conducted on a sump area in the type information of the objects to be arranged, and a first flushing faucet arrangement strategy is obtained; performing distance position judgment on the door position area under the related surrounding wall type to obtain a second flushing faucet arrangement strategy; and determining a flushing faucet arrangement strategy of the building water supply and drainage model based on the first flushing faucet arrangement strategy and the second flushing faucet arrangement strategy.

The shunt valve with the water drainage function comprises a shell, a copper rod, a rotor, an upper ceramic chip, a lower ceramic chip and a base, the copper rod penetrates through the shell, the lower end of the copper rod is inserted into the rotor, a pin hole is formed in the connecting position of the copper rod and the rotor in a penetrating mode, a pin is inserted into the pin hole, and a plurality of positioning protruding blocks are integrally fixed to the lower end of the rotor. The upper ceramic chip is attached to the lower end of the rotor, and a plurality of positioning grooves are formed in the upper end of the upper ceramic chip, so that the problems that an original shunt valve has no drainage design, residual water in a pipeline cannot be discharged in time during water cut-off or maintenance, water accumulation and corrosion are easily caused, and when internal parts are damaged, overall disassembly is needed for disassembly and replacement, and time and labor are consumed are solved; when the shunt valve is maintained, water in a pipeline can be rapidly emptied through the water drainage holes, the maintenance efficiency is improved, the whole structure is high in independence, independent replacement can be achieved when the shunt valve is damaged, overall disassembly is not needed, the base and the shell are reasonable in design, rapid disassembly and assembly are supported, and cleaning and maintenance are convenient.

The utility model relates to a novel rainwater pipeline interface structure belongs to drainage engineering technical field, and this device includes inlet pipe, drain pipe and Y -shaped pipe, the inlet pipe is located in the side position of drain pipe, Y -shaped pipe is provided with two groups, the first group Y -shaped pipe is installed to the pipe body side of drain end of inlet pipe, the second group Y -shaped pipe is installed to the pipe body side of inlet end of drain pipe, and the two groups branch pipe of first group Y -shaped pipe are all installed with control valve, and the valve rod rotating end of two groups control valve all is located in the outside of Y -shaped pipe. This device forms double -way drainage design through two groups Y -shaped pipe branch cooperation control valve, when clearing, need only close the control valve of the pipe line to be cleaned, switches to another road to can guarantee rainwater normal drainage, need not to dismantle a large number of pipelines, and the thread connection structure of filter pipe and outer thread sleeve pipe, further simplifies the dismantling cleaning process, and the maintenance convenience is improved significantly.

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.

The application provides a Chicago rain type comprehensive rain peak coefficient calculation method based on a storm process geometric shape, and aims to solve the theoretical basis and calculation method system of Chicago rain type analysis in urban outdoor drainage design. The method calculates the comprehensive rain peak position coefficient of different rainfall durations by statistically analyzing the rain peak position coefficient of the rainfall duration and combining the same frequency characteristics of the Chicago rain type, so that the calculation method based on the previous stage influence rainfall and rainfall duration weight of the traditional method is optimized. The method not only improves the efficiency of rainwater design work, but also adapts to the trend of improving the urban drainage and waterlogging prevention standard, and has important practical value and theoretical significance.

The utility model belongs to the field of soilless culture equipment, and provides an extensible multi-groove cross beam supporting type balcony three-dimensional water culture system which comprises a culture module, a supporting module and a water supply and drainage module, and the culture module comprises culture grooves, culture holes formed in the culture grooves and planting baskets arranged in the culture holes. A horizontal expansion interface for supporting horizontal expansion is arranged at the end part of the cultivation tank; the supporting module comprises a quick-release connecting pipe used for being connected with the horizontal expansion connector, a vertical expansion connector used for supporting vertical expansion is arranged on the quick-release connecting pipe, and the supporting module further comprises a vertical pipe, a first transverse pipe, a three-way connector and a second transverse pipe. Planting of four or more grooves is achieved through the transverse expansion design, the supporting and water supply and drainage structure is optimized, high-density planting of a family balcony is achieved through the modularized supporting structure and the parallel type water supply and drainage design, and the greenhouse is particularly suitable for efficient plant cultivation in a space limited scene.

This invention relates to the field of water conservancy engineering or tunnel engineering technology, and particularly to a method for dynamic control of external water pressure and drainage system design in deeply buried water conveyance tunnels. The method includes: acquiring hydrogeological zoning information, lining structure design parameters, and water resource constraint parameters; completing field mapping, terminology registration, division of pressure-controlled tunnel sections and pressure-controlled sectors, and constraint assembly and caliber unification to form a pressure budget table; constructing a controllable drainage network topology, completing the assembly of controllable pressure relief branches, valve group mapping, and monitoring orchestration; assembling monitoring data frames under monitoring orchestration constraints and performing consistency checks and coupled state updates to generate a state vector package; completing the assembly of control constraints and interlocking rules based on the state vector package, implementing valve group collaborative control, and performing anomaly diagnosis and degradation handling to form a closed-loop update package. This invention effectively improves the consistency and feasibility of the tunnel external water pressure control and drainage design process.

This utility model discloses an eco-friendly water conservancy slope protection system, relating to the field of water conservancy engineering technology. It includes a slope protection base and a slope protection brick covering area on its slope, with a protective retaining wall installed below the slope of the slope protection base. Points are evenly selected within the slope protection brick covering area, and positioning components are installed within the slope protection bricks at those points. This utility model prevents landslides after the soil softens by pouring an anti-slip retaining wall below the slope of the slope protection base. Simultaneously, the slope protection bricks form an integral structure through self-locking connections, further improving anti-slip capabilities. The positioning components are used to anchor the slope protection bricks at selected points within the slope protection brick covering area, preventing lateral displacement due to soil erosion under water flow. Furthermore, the inclined drainage design with main and tributary channels within the slope protection bricks allows for rapid drainage of rainwater, preventing root rot in plants and reducing pore water pressure within the slope. Combined with the use of protective netting, large particles of sediment are not carried away by the water flow, significantly reducing the rate of soil erosion.

The utility model discloses a self-cleaning device for a constant-temperature and constant-humidity chamber, which relates to the technical field of constant-temperature and constant-humidity chambers and comprises a chamber body, a plurality of upper and lower trays arranged in the chamber body, a bracket arranged on the lower side in the chamber body, and a shear shank arranged in the chamber body and arranged on the lower side of the bracket, a plurality of water spraying pipes are installed in the shear shank left and right, a plurality of ultraviolet germicidal lamps are installed in the middle in the shear shank, and sliding bases are rotationally connected to the four ends of the lower side of the shear shank. According to the self-cleaning device, efficient and comprehensive cleaning and disinfection functions are provided through automatic water spraying cleaning, ultraviolet disinfection, brushing and a flexible shear shank structure, operation is simplified through adjustable cleaning equipment and water source and drainage design, the cleaning effect is improved, meanwhile, stability and maintainability of the equipment are ensured, and the self-cleaning device is suitable for popularization and application. The cleaning efficiency is improved through the overall design, manual operation is reduced, and sanitation of the internal environment of the box body and reliability of products are guaranteed.

The utility model relates to cutting fluid monitoring technical field, and disclose a kind of visual general liquid path box body of real-time monitoring variety cutting fluid state, including box, the box one side outer wall is fixedly connected with adjusting box, the adjusting box inner wall top is fixedly connected with positive and negative motor, the positive and negative motor bottom rotating shaft is fixedly connected with two-way screw rod, the two-way screw rod is away from positive and negative motor one end connecting shaft swing connection in adjusting box inner wall bottom, the adjusting box is close to two two-way screw rod inner wall sides and is equipped with two limit posts of horizontal equidistance distribution, the limit post is parallel with two-way screw rod, the device is realized to cutting fluid state real-time accurate monitoring and visual operation by above-mentioned structure's mutual cooperation, its adjusting mechanism can be flexibly adjusted observation position, transparent baffle is convenient for direct observation, stable support and convenient drainage design guarantee device reliable operation and easy maintenance, effectively improve cutting fluid monitoring efficiency and quality, more practical.

This utility model provides a fully gravity-fed drainage structure for a switchyard, belonging to the field of water conservancy and hydropower technology. It includes a switchyard site, and a relay protection building and a GIS building respectively installed on top of the site. Both the relay protection building and the GIS building have basements for cable laying at their bases. The two basements are connected by a cable corridor. A site drainage ditch is installed around the outer perimeter of the switchyard site, and an indoor drainage ditch is installed around the inner perimeter of the basements. A corridor drainage ditch is installed inside the cable corridor, and a collection well is also installed in the basement of the GIS building. This utility model, through its gravity-fed and centralized drainage design, solves the problem of flooding caused by water pumps used for drainage when indoor water seepage occurs, especially in cases of pump equipment failure or power outage.

The utility model relates to drainage design technical field, concretely is a kind of connecting structure for drainage design, including drain pipe, the both ends of drain pipe are provided with spigot end and insertion end, the outer wall of spigot end is provided with limit block, insertion end is provided with insertion slot, limit slot and limit platform are provided in insertion slot, sealing assembly is further provided in insertion slot, sealing assembly includes first sealing ring and second sealing ring, elastic connecting body is provided between first sealing ring and second sealing ring, limit block of current drain pipe is along the limit slot of another drain pipe insertion end and is rotated and is clamped to the bottom by sliding, and when limit block moves to limit slot end, sealing assembly extrudes limit block and completes self-locking, and the sealing effect of spigot end and insertion end can be improved by first sealing ring and second sealing ring, and the connection between drain pipe is convenient.

The invention discloses a drainage simulation test device for municipal water supply and drainage design, and relates to the technical field of urban water supply and drainage simulation.The drainage simulation test device comprises a sliding cylinder, a sliding groove is formed in the inner side of the sliding cylinder, a sliding arc plate is slidably mounted on the inner side of the sliding groove, and an extension arc plate is welded to the top end of the sliding arc plate; the device is scientific and reasonable in structure and safe and convenient to use, an extension plate is welded to the top end of an extension arc plate, a fixing rod is welded to the top end of the extension plate, the outer side of the fixing rod is rotationally sleeved with a lifting rod, a sliding arc plate is pulled upwards through the extension arc plate, and the extension plate is fixed to the top end of the extension plate. At the moment, a drainage port is formed between the sliding arc plate and the communication groove, then a water source in the collection cavity flows from the drainage port to the bottom of the communication groove, the drainage condition in the local direction can be simulated, and the reaction capacity of the drainage system for coping with inflow of a large amount of sewage in different directions is tested.