212results about How to "Avoid standing water" patented technology

The invention discloses a sweeping and mopping integrated cleaning robot and a uniform wet-mopping control method thereof to solve the technical problem that an existing sweeping and mopping type cleaning robot is non-uniform in wet mopping. After obtaining motion information of the sweeping and mopping integrated cleaning robot, a control part obtains the operating speed of the sweeping and mopping integrated cleaning robot based on the motion information and the on-off duration and / or frequency of working current supplied to a water control solenoid valve through electric contacts based on the operating speed, and supplies electricity to the electric contacts according to the on-off duration and / or frequency, so that a path between a vent hole and the solenoid valve is connected or disconnected based on the on-off duration and / or frequency, the water seepage duration and / or frequency of a water tank can be achieved based on the motion information, different water seepage quantities are adjusted according to the operating speed, incomplete wet mopping is avoided when the operating speed is high, water accumulation is avoided when the operating speed is low, and the purpose of uniform wet mopping is achieved.

The invention discloses an upstream-blocking and downstream-seepage method for extracting gas in a mining area. The upstream-blocking and downstream-seepage method comprises the following steps of respectively drilling to a position which is 20-30m downward away from a fourth system interface, a position which is 5-6m upward away from a top plate of a seventh coal bed, a position which is 7-8m upward away from a top plate of a tenth coal bed and a position which is 3-5m downward away from a base plate of the tenth coal bed by using drill bits with different sizes and drilling to form a first drilling hole (1), a second drilling hole (5), a third drilling hole (7) and a fourth drilling hole (10); respectively driving a first casing pipe (2), a second casing pipe (6), a third casing pipe (8) and a cork (11); forming through holes (9) in the lower part of the third casing pipe (8), mounting expanding rubber between the second casing pipe and the third casing pipe and closing, then cleaning a well and extracting the gas. According to the upstream-blocking and downstream-seepage method disclosed by the invention, the problem that gas extraction is influenced due to the fact that a mining well seeps water can be effectively solved, the gas in the coal beds is released to the maximum extent and the extracting rate of the gas is increased; meanwhile, predominant threat of the seventh coal bed, the eighth coal bed and the ninth coal bed can be eliminated, the gas emission quantity of a mining face is reduced and the safety of mine production is ensured.

The invention discloses a rain water system for building districts of sponge cities. The rain water system is characterized by comprising a sedimentation pond, a distribution well, a treatment pond and overflow wells, wherein an environment-friendly rain water opening is formed in a position above the sedimentation pond, the sedimentation pond is connected with the distribution well through a water inlet pipe, a water inlet valve is arranged on the water inlet pipe, at least four distribution pipes are arranged on the left end surface of the distribution well, the distribution well is connected with the treatment pond through the distribution pipes, and the treatment pond is connected with the overflow wells through overflow pipes. A construction method of the rain water system comprises the following steps: (1) performing construction preparation; (2) excavating foundation pits; (3) performing foundation treatment; (4) building the sedimentation pond and the distribution well; (5) building the treatment pond and the overflow wells; (6) laying pipelines; and (7) performing ground treatment. The rain water system disclosed by the invention is simple in structure and high in practicability, and is used for collecting and treating rain water on the ground of building districts, so that the phenomenon of water accumulation on the ground of the districts is effectively avoided; and besides, rain water is collected, so that waste of water resources can be reduced.

The invention discloses a residential district sponge urban facility system comprising an ecological grass planting ditch, a sunken lawn, a rainwater garden, a rainfall pipe and a storage tank, wherein the ecological grass planting ditch is communicated with the rainwater garden through a first drain pipe, the sunken lawn is communicated with the rainwater garden through a second drain pipe, the rainwater garden is communicated with the storage tank through a third drain pipe, the rainfall pipe is located on an outer side wall of a building, an upper end of the rainfall pipe is communicated with the roof of the building, and a lower end of the rainfall pipe is communicated with the ecological grass planting ditch or the sunken lawn. The residential district sponge urban facility system disclosed by the invention can guide rainwater on the roof and on the ground of a residential district into the sponge urban facility system of the residential district for absorption, purification and collection, thereby not only alleviating the pressure of the drainage system of the residential district and the municipal pipe, but also saving water resources, and the collected water body can be directly applied to road and greening spray, etc.

The invention relates to the technical field of power supply equipment and discloses a dustproof and dampproof power distribution cabinet which comprises a power distribution cabinet body, wherein aninstallation plate is fixedly arranged in the power distribution cabinet body, a power distributor is fixedly arranged on the front side of the installation plate, a partition plate arranged on the front side of the installation plate is fixedly arranged on one side of the power distributor, a base is fixedly connected to the bottom end of the power distribution cabinet body, a venting hole is formed in the top of one side of the base, a dampproof layer is arranged at the bottom end of an inner cavity of the base, a servo motor is fixedly arranged at the top end of the inner cavity of the base, and an outer wall of the servo motor is fixedly sleeved in the box body at the top end of the inner cavity of the base. The dustproof dampproof power distribution cabinet is provided with the base,the venting hole, the dampproof layer, the servo motor and a fan, so that air around the base can be circulated; by means of air circulation, moisture near the base can be prevented from increasing; as the moisture near the base is reduced, dehumidifying and dampproof effects are achieved, and the power distribution cabinet is ensured to be prevented from the damp phenomenon.

The invention relates to a roof cornice water accumulation preventing structure, and belongs to the technical field of cornice water accumulation prevention. The water accumulation preventing structure comprises a wall, a cornice, a first drainage pipe, a second drainage pipe, a filter screen and a brush plate, and the cornice is fixedly connected with the outer wall of the wall; a catchment trough is formed between the inside wall of the cornice and the outside wall of the wall; the upper end of the first drainage pipe is fixedly connected and communicates with the bottom of the catchment trough, and the lower end of the first drainage pipe is fixedly connected with the wall; the second drainage pipe is fixedly connected with the cornice, and one end of the second drainage pipe penetratesthrough the cornice, and communicates with the catchment trough; the other end of the second drainage pipe faces the direction far away from the cornice; the filter screen is arranged in the catchment trough horizontally, and connected with the inside wall of the catchment trough fixedly; and the brush plate is slidably connected with the top side of the filter screen. The water accumulation preventing structure has the effects that the water accumulation of the cornice can be avoided, and the water seepage of the wall is avoided.

The invention relates to the technical field of agricultural planting, in particular to an intelligent greenhouse used for cultivation of citrus reiculata blanco seedlings. The intelligent greenhousecomprises a planting greenhouse, a water circulating device, a water and fertilizer irrigating device, a controller and a management module, and the planting greenhouse provides a good growing environment for the citrus reiculata blanco seedlings; the water circulating device is used for recycling water drained from soil; the water and fertilizer irrigating device comprises a storage box, a stirring blade, a material discharging pipe and fertilizer applying pipes, the material discharging pipe is communicated with the storage box through a pulp discharging pump, and the fertilizer applying pipes are respectively located on all planting rows and communicated with the material discharging pipe and comprise pipe bodies and spiral material pushing rods; the controller can control the plantinggreenhouse, the water circulating device and the water and fertilizer irrigating device according to the management module. The intelligent greenhouse used for cultivation of the citrus reiculata blanco seedlings can ensure that the citrus reiculata blanco seedlings grow in the environment suitable for growth of the citrus reiculata blanco seedlings and can automatically apply a suitable amount offertilizer to and irrigate citrus reiculata blanco.

The invention relates to a rooftop greening system which comprises a support layer arranged on a balcony, a waterproof root retaining layer, soil and various green plants. Since an absorption layer used for absorption is arranged between the waterproof root retaining layer and the soil and a drainage layer used for draining water is arranged in the absorption layer, redundant water in the soil can be absorbed into the absorption layer; then the water flows into a drainage throat, a drainage branch throat or a flat drainage plate, and finally is discharged to the outside directly without passing through the surface of the balcony, thus avoiding accumulated water on the balcony, reaching the effect of avoiding water seepage at the lower layer of the rooftop and meanwhile improving the water prevention service life of the balcony. The greening system directly drains the water to the outside, without passing through the surface of the balcony; the drainage layer is arranged on the upper parts of the support layer and the waterproof root retaining layer, so the rooftop greening system is isolated from the surface of the balcony through dry air for a long time, which is good for heat insulation and heat preservation and can provide good ventilation, thus reaching the effect of improving the ventilation property and drainage performance of the whole greening system.

The invention discloses an environment-friendly breathable concrete road surface structure. A soil base layer is included. A gravel layer is arranged at the upper end of the soil base layer. A reinforced concrete layer is arranged at the upper end of the gravel layer and internally provided with strengthening ribs arranged in a crossed manner. A water discharging layer is arranged at the upper endof the reinforced concrete layer. A water guiding layer is arranged at the upper end of the water discharging layer. Water guiding cavities are symmetrically formed in the water guiding layer. The side walls, close to the water guiding layer, of the water guiding cavities are internally provided with branch cavities in the vertical direction, the branch cavities communicate with the water guidingcavities, the ends close to the water discharging layer are obliquely arranged downwards, and the upper end of the water guiding layer is provided with a high-permeability concrete layer. By means ofthe environment-friendly breathable concrete road surface structure, the phenomenon of road surface water accumulation can be effectively prevented, long-time rainwater accumulating is avoided, rainwater discharging and dredging hindering is avoided, and therefore frequent maintenance is not needed in the usage process, the usage process is safer and cleaner, and maintenance is more simple.

The invention provides a floor drain brick and a floor drain structure and relates to the technical field of building decoration. The floor drain brick is of an integrated structure and comprises a first side and a second side which are opposite. Floor drain mounting holes penetrating through the first side and the second side are formed in the floor drain brick, and the periphery of each floor drain mounting hole forms a mounting step. Preset inclination angles exist between the surface of the first side of the floor drain brick and the mounting steps. The floor drain brick is of the integrated structure, during floor drain mounting, waste caused by cutting can be avoided, the preset inclination angles exist between the surface of the first side of the floor drain brick and the mounting steps, and thus water can be easily guided to a floor drain from the floor drain brick.

The invention discloses a greening irrigation system for sponge cities. The greening irrigation system comprises a water collecting device, a priming pump device, an aeration device and a greening device, wherein the water collecting device comprises a water collecting pool, a water collector and a purification integrated machine; the priming pump device comprises water feed pumps connected with pump water discharge pipes, the pump water discharge pipes are connected with the aeration device which is connected with a water storage tank, and the water storage tank is connected with water storage tank discharge pipes which are connected with the greening device. The construction method comprises steps as follows: (1), excavating foundation pits; (b), building the water collecting pool, an aeration tank and the water storage tank; (c), pretreating a foundation where ecological greening insert blocks are to be laid; (d), laying the ecological greening insert blocks; (e), planting green plants. According to the system, urban rainwater is collected and treated by the water collecting device, the collected rainwater is purified, put into secondary use and applied to irrigation of the greening device, so that not only is the waterlogging phenomenon of the road surface prevented effectively, but also water resource waste can be reduced through rainwater collection.

The invention discloses a water-accumulation-prevented bridge floor. The water-accumulation-prevented bridge floor comprises an arc-shaped bridge body supporting foundation and an arc-shaped bridge floor, wherein the arc-shaped bridge floor is a concrete bridge floor or asphalt bridge floor, a plurality of step grooves are formed in the upper surface of the arc-shaped bridge floor in a spaced manner, the step grooves are formed along the width direction of the arc-shaped bridge floor, two water guiding grooves are formed in the upper part of the arc-shaped bridge body supporting foundation, the water guiding grooves are respectively formed in the two sides of the arc-shaped bridge floor, a cover plate is arranged at the upper parts of the step grooves and respectively comprises an upper-part rubber plate and a bottom steel plate arranged underneath the upper-part rubber plate, and draining through holes which point to the bottoms of the step grooves are respectively formed in the cover plate. By the manner, according to the water-accumulation-prevented bridge floor disclosed by the invention, rainwater on the bridge floor is segmented, respectively passes through the cover plate and then enters the step grooves, so that water flow is scattered, and water accumulation is avoided; due to the upper-part rubber plate, the friction force to tires is increased, vehicle skidding is reduced, and the braking performance can be improved.

The invention discloses environmental-protection stand cleaning equipment. The environmental-protection stand cleaning equipment comprises a cleaning equipment body; the cleaning equipment body is ofa rectangular frame structure; a chute is formed in the inner wall of the cleaning equipment body; a support plate is slidingly connected into the chute, and is of a rectangular plate structure; a rotating base is rotationally connected into the support plate, and is of a circular plate structure; the side wall of the rotating base is fixedly connected with a limiting ring; the plate surface of the rotating base is fixedly connected with surrounding stand rods; multiple surrounding stand rods are provided and across arranged on the plate surface of the rotating base; a pressing top plate is slidingly connected among the multiple surrounding stand rods; positioning holes are formed in the surfaces of the surrounding stand rods; a seal rotating ring is arranged between two filter rotating drums; and when the seal rotating ring guarantees conveying of a water source by a water conveying pipe, the rotation of the filter rotating drums is realized, so that the water accumulating phenomenonof a stand caused by reduction of the flowing speed of the water source due to accumulation of residues is prevented.

The invention belongs to the technical field of dewatering and drainage, and discloses a novel comprehensive dewatering and drainage method and drainage device for a mudstone metro station. The dewatering problem is solved by adopting a base open drainage method after well-point dewatering and drainage from the side wall of a foundation pit to a bottom plate. A station firstly adopts the well-point dewatering, the foundation pit is excavated to be below mudstone, and drainage is conducted to be below the bottom plate by adopting blind pipes; the blind pipes are buried in blind ditches with the size of 500 * 500 mm arranged on the periphery of the base, water flow led out from the side wall is drained into a water collecting pit, the phenomena that the mudstone of the foundation pit is soaked by water and water is accumulated in the foundation pit are avoided, and therefore effective dewatering and drainage effect is achieved. According to the novel comprehensive dewatering and drainage method and drainage device for the mudstone metro station, the dewatering problem is solved by adopting the base open drainage method after well-point dewatering and drainage from the side wall of the foundation pit to the bottom plate, the phenomena that the mudstone of the foundation pit is soaked by the water and the water is accumulated in the foundation pit can be avoided, and therefore the effective dewatering and drainage effect is achieved.

The invention belongs to the field of household electrical equipment and specifically relates to a power line flashboard. The power line flashboard comprises a power line flashboard body; the top of the body is provided with a tapered boss; the top of the boss is provided with an insertion port where a power line plug can be inserted; the two side walls of the boss are fixedly provided with vertical guide barrels, and springs fixedly connected with the side wall of the boss are arranged in the guide barrels; the side wall of the boss is hinged with symmetrical clamps for clamping the power line plug and the body; the top ends of the springs are fixedly connected with balls, and the clamps lean against the balls; a polyurethane buffer layer is installed at the position where the clamps are contacted with the power line plug; the bottom of the body is equipped with a plurality of rollers; the bottom of the side wall of the body is hinged with a turntable; a pedal is welded on the circumference of the turntable; and the surface of the pedal is provided with a plurality of friction strips. The power line flashboard provided by the invention can prevent the power line plug from being disengaged, avoid water accumulation, reduce the wear degree of the bottom of the power line flashboard, and prolong the service life.

The invention discloses an improved low-temperature vacuum drying oven. The improved low-temperature vacuum drying oven comprises an oven body, drying trays and at least one layer of drying rack, the inner top of the top of the oven box is semi-elliptical, the inner bottom of the bottom of the oven body is concave, and the concave portion of the inner bottom is provided with a drainage pipe; the drying racks are arranged inside the oven body, both the upper end and the lower end of the drying racks are provided with a steam pipe, the connector opening of each steam pipe is provided with a quick connector, and the drying trays are arranged on the drying racks. The improved low-temperature vacuum drying oven improves vacuum-pumping efficiency, avoids dead angles, solves the problem that materials at the top layer is not easy to dry, improves drying efficiency, solves the problems that materials are easy to be scorched at the contact position of the bottom of the drying tray and a heat dissipating coil pipe, improves drying efficiency on the whole and reduces drying energy loss.

The invention discloses a temperature monitoring and safety early warning system for a semitrailer braking system. The temperature monitoring and safety early warning system comprises a hub and a baffle. A mounting frame is fixedly connected to the center of the hub, shock absorbing springs are fixedly connected to the inner wall of the mounting frame, clamping connection plates are fixedly connected to one ends of the shock absorbing springs, and a fixing barrel is movably connected between the clamping connection plates. A temperature sensor is fixedly mounted in the fixing barrel. A clamping key is fixedly connected to the right side of the baffle, and the baffle is movably connected with the hub in a clamped mode through the clamping key. The temperature sensor is connected to a control system CPU through a wireless signal, the control system CPU is connected with an alarm apparatus through a cable, and the alarm apparatus is electrically connected with a voice prompting device. The temperature monitoring and safety early warning system has the functions of shock absorption, heat dissipation and drainage for the temperature sensor, can monitor the temperature of the brake system in real time, can promptly remind a driver to avoid potential safety hazards, and is easy to popularize and apply.

The invention discloses a high-voltage switch cabinet capable of preventing water accumulation. The high-voltage switch cabinet comprises an electric cabinet, a protective structure, an adjusting structure and a water accumulation preventing structure, wherein the right end of an opening in the front surface of the electric cabinet is hinged to the right side of the rear surface of the cabinet door through a hinge; the protective structure is arranged in an inner cavity of the electric cabinet, and mounting plates are vertically and uniformly arranged in the inner cavity of the protective structure; the adjusting structure is arranged on the lower surface of the electric cabinet, a trapezoidal table is arranged on the lower surface of the adjusting structure, and a water level sensor is arranged at the left end of the front surface of the adjusting structure; the water accumulation preventing structure is arranged on the lower surface of the trapezoidal table. The high-voltage switch cabinet also comprises a PLC controller. The PLC controller is arranged on the front surface of the cabinet door, and the input end of the PLC controller is electrically connected with an external power source. According to the high-voltage switch cabinet capable of preventing water accumulation, the safety coefficient of the electric cabinet in the using process is improved, the requirement for multi-layer protection is met, the water accumulation prevention effect is achieved, and the water accumulation condition is avoided through the design of various kinds of water drainage and leakage.

The invention discloses a method for changing a slope orchard into a civil engineering orchard. The method changes slope orchards in different gradients into civil engineering orchards. For slope orchards in gradient of 20-45 DEG, methods of changing a slope into a terracing, applying field planting fertilizer in small holes, and accumulating soil and piling are used. For slope orchards in gradient of 45-60 DEG, methods of building fish scale holes, applying field planting fertilizer in small holes, and accumulating soil and piling are used. The method realizes substantial improvement on economical values of fruit trees in a garden.

The invention relates to the technical field of railway vehicles, and discloses a railway vehicle air conditioner flat top structure and a railway vehicle. The railway vehicle air conditioner flat topstructure comprises: a first end top plate structure, a first top plate, a second end top plate structure and a second top plate, wherein the first end top plate structure, the first top plate, the second end top plate structure and the second top plate are welded end to end to form a frame structure, each of the first end top plate structure and the second end top plate structure comprises an end top plate and an end top cross beam integrally connected with the end top plate, the middle area of the bottom wall of the end top cross beam is higher than the areas on the two sides, and the two sides of the end top cross beam are connected with the first top plate and the second top plate on the corresponding sides; and drainage grooves formed in the lower surface of the first top plate and the lower surface of the second top plate respectively, wherein through holes communicated with the drainage grooves in the corresponding sides are formed in the first top plate and the second top plate. The railway vehicle air conditioner flat top structure has the advantage of being free of water storage and water leakage.

The invention discloses a construction method of a stone pitching structure of a tidal face of a tidal-flat area. The construction method comprises the following steps: a, carrying out staking out insurvey in a construction site, then excavating a base layer, and leveling the surface of the base layer; b, structurally constructing a water retaining surface; c, constructing a first stone layer; d,constructing a second stone layer; e, constructing a pitching structure; and f, spraying and cleaning water to the pitching structure with a high pressure water gun. The construction method disclosedby the invention improves the invasion ability of a defense water flow, improves the water conveying efficiency and prevents a ponding phenomenon of the pitching structure, and meanwhile, the stone pitching structure is good in erosion resistance and durability. By carrying out structural construction of the water retaining surface, construction of the first stone layer, the second stone layer and construction of the pitching structure successively from bottom to top, the influence of water flow scouring is reduced in the construction process, and the pitching building blocks can be paved ina positioned manner, so that the construction quality of the stone pitching structure is improved.

The invention provides a spliced water tank, and belongs to the technical field of kitchen utensils. The spliced water tank comprises a tank cabinet and square water tank bodies, a groove is formed in the upper end of the tank cabinet, and the multiple water tank bodies are located in the groove side by side; a stopping edge assembly is arranged at the upper edge of each water tank body and comprises fixed stop edges on three sides and a movable stop edge on one side, vertically-formed strip-shaped holes and positioning holes are formed in the portions, close to the movable stopping edges, of the wall of the water tank bodies, sliding rods which can be inserted into the strip-shaped holes are arranged at the movable stopping edges, detachable limiting pieces are connected to the ends, inserted into the strip-shaped holes, of the sliding rods, supporting plates are arranged below the movable stopping edges and fixed to the bottoms of the outer sides of the water tank bodies, first springs are arranged between the movable stopping edges and the supporting plates, connecting plates vertically moving along with the first springs are arranged on the first springs, second pressed springs are connected to the sides, close to the walls of the water tank bodies, of the connecting plates, and connectors are connected to the outer ends of the second springs. The spliced water tank is formed by splicing the multiple water tank bodies, is convenient to disassemble and assemble and can be combined by persons at will.

The invention discloses a fiber implanted permeable pavement structure which comprises a rammed earth layer, a roadbed and a permeable surface layer which are sequentially arranged from bottom to top,wherein the permeable surface layer comprises a permeable fiber structure and a structural layer consisting of asphalt or concrete; the permeable fiber structure is of a net structure formed by weaving fiber materials and is laid on the surface of a roadbed. The structural layer is poured in a grid formed by the permeable fiber structure; the parts, exposed out of the surface of the structural layer, of the permeable fiber structure are distributed in a point cluster manner to form water seepage inlet points; the permeable fiber structure extends out of the structural layer along the two sides of the pavement to form water seepage and drainage points. Rainwater on a road surface can enter the permeable fiber structure through the water seepage inlet points and laterally flow to the waterseepage drainage points to be discharged, and better permeable and water outlet effects can be achieved; the structure is economical, practical and suitable for large-scale popularization.

The invention relates to the technical field of agricultural planting, and particularly relates to a water fertilizer smart irrigation system. The system comprises planting rows, a water circulation device, a water fertilizer irrigation device, a controller and a management module, wherein the water circulation device is used for recycling water drained from soil; the water fertilizer irrigation device comprises a storage tank, an agitation paddle, a discharge pipe and fertilizing pipes; the storage tank is connected with a water storage tank through a circulating pipe; the discharge pipe is connected with the storage tank through a draining pump; the fertilizing pipes are respectively positioned on each planting row and connected with the discharge pipe; each fertilizing pipe comprises apipe body and a helical push rod; and the controller can be used for controlling the water circulation device and the water fertilizer irrigation device according to the management module. The water fertilizer smart irrigation system can be used for dividing planting into several sections and independently each section of planting rows, so that occurrence of growth difference among W oranges can be reduced.

The invention discloses an urban rainwater treatment system, which comprises a kerbstone water collecting and drainage system, a pavement plate seepage system and a drainage and seepage ditch system, wherein the kerbstone water collecting and drainage system is arranged at a boundary part of two pavement tectonic belts; the kerbstone water collecting and drainage system 1 is formed by a plurality of kerbstone components; the pavement plate seepage system is formed by a plurality of pavement plates; a filter layer is arranged under the pavement plate seepage system, and is arranged on soil; the drainage and seepage ditch system is formed by a plurality of drainage and seepage ditch components, and is arranged in the filter layer or the soil.

The invention discloses a guide flow bottom plate, comprising side plates, a guide flow plate and a drain hole; the side plates are encircled at four sides of the guide flow plate; the guide flow plate is partitioned into four zones, which are first guide flow zone, a second guide flow zone, a third guide flow zone and a fourth guide flow zone; four sides of the drain hole are encircled by the first guide flow zone, the second guide flow zone, the third guide flow zone and the fourth guide flow zone; the first guide flow zone, the second guide flow zone, the third guide flow zone and the fourth guide flow zone are inclined structure; the high inclined end parts of the first guide flow zone, the second guide flow zone, the third guide flow zone and the fourth guide flow zone are connected with the upper surface of the side plate, and lower end parts are connected with the drain hole, thus the structure of high four sides and low middle part of the guide flow plate is formed. The guide flow bottom plate can avoid waterlog of the bottom plate, and accelerate the water flow speed.

The invention discloses a road blow-off pipe fitting, which comprises a pipe body and a filter screen, wherein the pipe body is provided with a water inlet section, a drainage section and a blow-off section; the water inlet section is represented as a hollow pipe and is arranged in drainage holes in an upright mode; the drainage section is represented as a hollow pipe; the upper end of the drainage section is coaxially connected to the lower end of the water inlet section, so that a water outlet, which communicates with the drainage section, is formed, and at the lower end of the drainage section, a water pipe is connected to an underground drainage system; the blow-off section is represented as a hollow pipe; the upper end of the blow-off section is obliquely connected to the lower end of the water inlet section, so that an included angle is formed with the water inlet section, and a drain outlet, which is arranged above the water outlet, is formed in a communicating part; at the lower end of the blow-off section, a water pipe is connected to a collection tank; and the filter screen is arranged in the water inlet section and extends into the blow-off section from the drain outlet, so that the water outlet is covered. The road blow-off pipe fitting provided by the invention can prevent the occurrence of a situation of water accumulation; and the road blow-off fitting is practical.

The invention relates to a natural water body sea surface polarization hyperspectral observation system, and aims to realize in-situ observation of the natural water body polarization hyperspectral field, detect a polarization characteristic change rule of visible light in a natural water body radiation transmission process, and clarify an internal relation between water radiation polarization spectral characteristics and water color elements. According to the invention, three first hyperspectral radiance sensors, three second hyperspectral radiance sensors and a hyperspectral irradiance sensor are arranged on a rotary holder assembly; implementation of 360-degree comprehensive observation is achieved, meanwhile, linear polarizers are arranged at detection ports of the three first hyperspectral radiance sensors and the three second hyperspectral radiance sensors, so on-site in-situ observation at different altitude angles is achieved, irradiation and pollution of solar flare can be effectively avoided, interference of sky diffused light is restrained, the water leaving radiation polarization spectrum is accurately measured, and polarization spectrum measurement of different observation geometries of a natural water body is completed.