78results about How to "Does not affect the landscape" patented technology

The invention provides an ecological grass planting trench for cities with rich water resource, which is arranged on one side of a sidewalk road. The ecological grass planting trench sequentially comprises a vegetation layer, a planting soil layer, a building block brick layer, a water permeating and discharging pipe and a gravel layer from top to bottom. The ecological grass planting trench is arranged on one side of the sidewall road and used for collecting rainfall running water on the sidewall road, the pollutants in the running water can be reduced, and a purpose for locally purifying the running water and controlling the pollution of the running water can be achieved; the ecological grass planting trench is arranged between the sidewall road and a green land, so that not only is the landscape not influenced, but also convenience in construction can be realized; the rainfall running water is stopped in the gravel layer and gradually and slowly permeated, finally the water content of the soil of the green land is replenished, the rainfall running water can be completely absorbed and purified, and the water for irrigating the green land can be reduced; the lower end of the water permeating and discharging pipe is connected with a rainy water opening or a rainy water well, the other end of the water permeating and discharging pipe is closed, so that the collected rainfall running water on the sidewalk road can be collected into the rainy water opening or the rainy water well, and a purpose for reducing the rainfall running water and postponing the flood peak can be achieved.

Under the surface plants several percolating channels and water-distributing grooves are set, the interior of percolating channel is filled with artifically-made speciall soil, and at two sides of water-distributing groove the reinforced water-distributing material can be set, under the action of comprhensive cleaning function of soil, microorganism and plant system, the sewage can be cleaned, the cleaned water can be collected by a water-collecting channel set on the impervious layer of its bottom portion, and discharged out by a water-collecting tube. Said invention can make removing rate of COD, amino nitrogen, total nitrogen and total phosphorus being in domestic sewage by up to above 90%.

The invention discloses a construction method and a structure of a landscape type wave wall. According to the construction method, water retaining walls capable of being overturned are arranged on the edges of dams on the both sides of a river, and the water retaining walls are erected to resist floods when the floods come; after the floods subside, the water retaining walls are put down to be used as road surfaces on the dams; a flood protection requirement is met through the water retaining walls capable of being overturned, and meanwhile the landscape requirement of the both sides of the river is met. A device constructed according to the construction method comprises a dam 1; a base 2 is arranged at the top of the dam; the side, close to the river, of the base is hinged to the bottom of the back-to-water side of a water retaining wall 3; a supporting device 4 is arranged on the base, and the supporting device is hinged to the top of the back-to-water side of the water retaining wall. According to the construction method and the structure of the landscape type wave wall, an existing method that dams are permanently heightened is replaced by the overturning type water retaining walls, the landscape of a riverway is not influenced, and the environment around the dams can also be improved; when the floods come, the dams do not need to be heightened temporarily by inputting a large quantity of labor and material resources; flood protection can be achieved within a short time; the water retaining walls can be hidden conveniently in the flood recession period, and maintaining and repairing are convenient.

The invention discloses a method for purifying water quality by utilizing floating-field plants, wherein floating plants on stream surfaces are taken as carriers, a wide space similar to the floating field is constructed on the stream surfaces, and aquatic plants of soilless culture are planted on the floating plants. The method has obvious water quality purification effect and strong flexibility, operability, economical practicability, persistence and enjoyment.

The invention discloses a ground-buried device for high and low voltage switchgear cabinets. The ground-buried device comprises a mounting shell. The top of the mounting shell is provided with a coverplate. Engagement grooves are symmetrically arranged on both sides of the bottom of the cover plate. Matching engagement strips located on the mounting shell are disposed in the engagement grooves. The bottom of the mounting shell is provided with a plurality of support columns. The tops of the support columns are provided with a support plate. A side of the bottom of the support plate is provided with a water level sensor. A side of the top of the support plate is provided with a water pump. The bottom of the water pump is provided with a water pumping pipe penetrating through the support plate. The top of the water pump is provided with an outlet pipe having one end extending through the mounting shell and to the outside of the mounting housing. The top of the support plate is providedwith a forward / backward motor at a side away from the water pump. The mounting shell is provided with a stopping groove at a side of the forward / backward motor. The ground-buried device is underground, and cannot affect the landscape and greening of a city. The high and low voltage switchgear cabinets in the ground-buried device are not in contact with the outside world, thus ensuring the safety of residents and pedestrians.

The invention discloses an electric-field-sensed lightning rod capable of lifting automatically. The lightning rod comprises an electric field measuring instrument (1), an electric control unit (2), a driving unit (3), a lifting rod (4) and a lightning rod body (5), wherein the electric field measuring instrument (1), the electric control unit (2) and the driving unit (3) are connected in sequence; the lightning rod body (5) comprises a lightning arresting needle (5.1), a downlead wire (5.2) and a grounding apparatus (5.3); the downlead wire (5.2) is connected with the lightning arresting needle (5.1) and the grounding apparatus (5.3); and the lightning arresting needle (5.1) is positioned at the top end of the lifting rod (4). The lifting of the lightning rod is controlled by sensing whether thunder cloud exists or not so as to realize active lightning protection; when the lightning rod senses the existence of thunder cloud in the air, the lightning rod lifts up automatically for realizing lightning protection; and when the thunder cloud disappears, the lightning rod is atomically folded, so that the intelligent control of the lightning rod is realized.

The invention relates to a method for in situ microbial remediation of urban water body. Specifically, the method comprises the following steps: taking powdered activated carbon, clay mineral, solid carbon source and microorganism growth factor as raw materials for preparing a microorganism enrichment activating filler; keeping full contact between urban polluted water body and microorganism enrichment activating filler under the action of aeration; boosting the fast enrichment, activation and multiplication of microorganisms in fed water by the carbon source and microorganism growth factor released from the filler; guiding the efficient active fungi released from the filler to enter into the urban water body following the effluent, thereby effectively regulating the structure and plumpness of biological colony in water body, enhancing metabolism of microorganisms, accelerating mineralization of organic pollutants and finally achieving the purpose of remediating water body and promoting self-cleaning capacity of ecological system. The method is simple in process, is low in production and running cost, is convenient for engineering application and has an excellent popularization andapplication prospect.

The invention discloses a water body purification gallery and technology used for river channel water body ammonia nitrogen in situ treatment. The gallery comprises at least two stages of gallery monomers which are connected in series and also comprises a nano aeration machine and a speed control device arranged at a water inlet end of a primary gallery monomer; each gallery monomer comprises a floating frame body, a screen frame fixed on the floating frame body and a water distribution pipe arranged in a nitrification filler region, wherein the floating frame body comprises a floating pipe floating on water, a plurality of fixed links driven in a river bottom along the floating pipe and plastic pipes which sheathe the corresponding fixed links in a penetrating way; the interior of the screen frame is sequentially divided into a nitrification filler region, a transition region and a denitrification filler region along the water flow direction by virtue of a water flowing screen; and the water distribution pipe is externally connected with the nano aeration machine. The water body purification gallery and technology can be used for solving the problems that an ammonia nitrogen removal device in an existing river channel restoration technology occupies a large area, front-end investment is high and late operating maintenance is complicated.

The invention provides a powerless-aeration biological filtering bed, which is applied to an urban domestic sewage discharging port and is used for increasing dissolved oxygen in discharged domestic sewage and promoting degradation of pollutants in sewage. The powerless-aeration biological filtering bed comprises a vertical sewage containing pipe and a biological filtering bed, wherein water enters from the bottom part of the vertical sewage containing pipe and is discharged from the top part of the vertical sewage containing pipe; the biological filtering bed consists of more than two layers of pallets with uniform water-permeable holes in the bottom parts. By virtue of the pressure of a sewage discharging pipeline, sewage enters from the bottom part of the vertical sewage containing pipe and flows into the biological filtering bed from the top part of the vertical sewage containing pipe after being collected. The powerless-aeration biological filtering bed provided by the invention has the advantages that the shape is matched with the environment of the sewage discharging port, the size can be adjustd according to the flow rate of sewage of the sewage discharging port, power is not needed for driving, the aeration efficiency is high, and the powerless-aeration biological filtering bed can be combined with other water-environment restoration technologies can be achieved.

The invention discloses an upper opening type weir gate. The upward opening type weir gate comprises a fixed framework. A water passing channel is formed in the fixed framework, and guide grooves are symmetrically formed inside the fixed framework. An opening and closing gate plate is inlaid in the guide grooves and located on the water passing channel. Opening and closing oil cylinders are symmetrically arranged at the two ends of the bottom of the fixed framework, and piston rods of the opening and closing oil cylinders are connected with the opening and closing gate plate. The opening and closing gate plate is driven by the opening and closing oil cylinders to ascend or descend, the two ends of the opening and closing gate plate slide in the guide grooves upwards and downwards, and the opening and closing gate plate can ascend or descend as needed and can stop at any height position to control different distributed water flows or upstream water levels through interception. The opening and closing oil cylinders can be provided with an automatic control system so that the upward opening type weir gate can be automatically controlled in an unattended mode. Besides, the upward opening type weir gate is easy and convenient to maintain and compact in structure and will not affect a ground landscape.

The invention discloses a novel external prestressing strengthening device. The novel external prestressing strengthening device comprises a prestressing strengthening piece anchored to the periphery of a concrete bridge disease area. The strengthening piece is composed of a plurality of prestressing units. Each prestressing unit comprises two sets of anchoring blocks which are symmetrically arranged left and right in a spaced mode and are provided with prestressing bundle hole channels. The connecting lines between every two sets of anchoring blocks are of a rectangular structure. A unit prestressing bundle is arranged between each set of anchoring blocks. The two ends of the unit prestressing bundles penetrate out from the interiors of the prestressing bundle hole channels in the anchoring blocks and are fixed. Arc-shaped positioning groove plates are clamped to the middles of every two unit prestressing bundles correspondingly. An adjusting threaded rod is arranged between every two arc-shaped positioning groove plates in a penetrating mode. Adjusting nuts are screwed in the positions, stretching out of every two arc-shaped positioning groove plates, of each adjusting threaded rod. According to the novel external prestressing strengthening device and a construction method, a unified disposal scheme for solving a plurality of fracture shapes is provided, the multiple prestressing units can be arranged on a single section in the longitudinal, vertical or transverse direction, and two-way or three-way prestress can be applied to a box beam.

The invention relates to an initial rainwater intelligent collecting and diverting gutter inlet and a diverting method, and belongs to the technical field of initial rainwater control. According to the initial rainwater intelligent collecting and diverting gutter inlet, a flat grate gutter inlet located in a road plane is formed in a rainwater vertical shaft, the flat grate gutter inlet is locatedin one side of curbstone, and the rainwater vertical shaft is communicated with a municipal sewage pipe. An independent first rainwater vertical shaft is further arranged at one side of the rainwatervertical shaft; a lateral gutter inlet is formed in the side, facing the flat grate gutter inlet, of the curbstone; a baffle capable of being opened and closed is arranged on the lateral gutter inlet; the lateral gutter inlet is communicated with the independent first rainwater vertical shaft below the lateral gutter inlet; the rainwater vertical shaft is communicated with the first rainwater vertical shaft through a connecting pipe; and a rainwater pipe or a recycled water pipe is also arranged on the first rainwater vertical shaft. The initial rainwater intelligent collecting and divertinggutter inlet and the diverting method can be applied to different areas and different functional areas, and the initial rainwater defining ground runoff volume and rainfall duration of the areas can be independently and flexibly set according to different initial rainwater defining standards, so that refined diverting of each module is achieved.

The invention relates to a fountain aeration spray head and a manufacture method and a use method thereof. A spray head main body comprises a spray head outer barrel, a spray head inner barrel, an air-water mixing flow guide cavity, a water source spray pipe and a flow regulator and is formed by connecting a tapered flow guide bracket, a lower end flange bracket and an upper end flange bracket; the center part of the water source spray pipe is provided with the flow regulator; the lower end flange bracket is fixedly arranged on the outer wall of the water source spray pipe; both end parts of the spray head inner barrel and the spray head outer barrel are fixedly provided with the lower end flange bracket and the upper end flange bracket respectively to form an air inlet passage to guide air to the air-water mixing flow guide cavity; and a mixed air-water mixing water source is sprayed from a nozzle to aerate a water source. The invention has scientific design conception, reasonable structure, convenient use, large and even aeration, favorable aeration effect, simple and easy installation and debugging, even air-water mixture, large fountain water shape diameter, attractive appearance, large air inflow, elegant white jade pillar water shape, nobleness, generosity, elegance and distinction and combines aeration and a waterscape together.

Disclosed is a screw transmission hoist with a cylinder body and a push rod. The screw transmission hoist is mainly composed of a frame, a reducing motor, a coupler, a hollow shaft reducer, the cylinder body, a screw, a bearing nut, the hollow push rod and a hoist head. The frame is fixed onto a concrete foundation, and the cylinder body and the hollow shaft are connected through a cylinder body flange and vertically fixed onto the frame; the hollow shaft reducer and the reducing motor horizontally arranged on the frame are connected through the coupler; the upper end of the screw penetrates the hollow shaft reducer and is locked through locking nuts and vertically suspended in the center of the cylinder body; the bearing nut and the hollow push rod are connected into a whole, arranged between the screw and the inner wall of the cylinder body and threadedly matched with the screw to vertically move up and down; the lower end of the hollow push rod extends out of the cylinder body and is connected with the hoist head. A screw transmission pair is high in anti-corrosion and anti-dirt performance and strong in lubricating effects and prolongs the service life. The push rod can be chromeplated or sprayed with industrial ceramics, so that the anti-corrosion effects of the push rod can be enhanced, so that the screw transmission hoist with the cylinder body and the push rod can be applied to various water resource and hydropower projects.

The invention provides a solar micro-power rural sewage treatment system, which comprises an influent water well, anaerobic tank, an anoxic tank, a contact oxidation tank, a sedimentation tank, a wetland filter, and an effluent water well, an aerator is arranged in the contact oxidation tank, and a return system is further arranged between the anoxic tank and the sedimentation tank. Compared witha trickling filtration technology, the solar micro-power rural sewage treatment system provided by the invention does not require electricity consumption and professional operation and maintenance personnel; compared with an ecological combined pond treatment system, the solar micro-power rural sewage treatment system solves the defects of large land area occupation, high seasonality and great investment on vegetation maintenance; compared with a contact oxidation treatment system, the solar micro-power rural sewage treatment system solves the defects of poor effluent water quality, poor nitrogen and phosphorus removal and odor; compared with a conventional rural domestic sewage treatment technology, the solar micro-power rural sewage treatment system can reduce preliminary construction investment by 10 to 20 percent; because green solar energy is adopted for operation, the operating cost is zero; and therefore the solar micro-power rural sewage treatment system is superior to the prior art and systems.

The invention relates to a multifunctional character brick, a direction adjustable compass brick, a foot friction brick, a multi-pattern character decorative module, and laying method thereof, which is characterized in that the brick is in typography type construction, the surface pattern is in Braille character, character, or compass shape, the front surface has foot bottom channels and collaterals concave and convex combination in shape of engraved character, bead or pebble, the back surface has positioning reinforcement, the lateral structure has an anti-warp opening. The laying process is different according various uses such as information sidewalk for the blind, large scale gym or stadium guidance information path, scenic spot tourist guide information path, large square differential positioning information path, health-care foot friction path, ground or wall decoration. The creative sense comes from typography and compass as one of four inventions of ancient China, and transitional innovation and intersecting innovation combining tangram, science of channels and collaterals, and abacus. Due to changes on brick construction and plate shape, the brick has function of paving the road, way guidance, warp prevention, civilization inheritance, culture propagation, information transmitting, and healthcare.

The invention provides a telescopic overwater trash holding device which comprises a plurality of trash holding bodies and a trash blocking net. The plurality of trash holding bodies are sequentiallyarranged in the width direction of a river way. Each trash blocking body comprises a floating box and a blocking stand column arranged at the top of the floating box. Every two adjacent blocking standcolumns are connected through a telescopic cross brace, the top ends of every two adjacent blocking stand columns are connected through a telescopic hanging net connecting rod, and the two trash blocking bodies closest to the two sides of the river way are movably connected with the corresponding river banks, so that all the trash blocking bodies ascend and descend along with the water level; andthe trash blocking net is connected with the hanging net connecting rods, so that the trash blocking net covers the area between the two adjacent blocking stand columns. The length of the telescopicoverwater trash holding device can be adjusted according to the width of the river way, and the telescopic overwater trash holding device is simple in structure, fast to disassemble and assemble, lowin manufacturing cost and convenient to transport, store and maintain.

The invention provides a sinking-mode carbon fiber eco-grass which includes a buoy, a fiberglass composite rebars frame, a lanyard and a carbon fiber. The fiberglass composite rebars frame is in rectangle and connected with a plurality of lanyards. Each lanyard is respectively provided with a plurality of hexagon rings in their length direction. The upper end of the lanyard is connected with the buoy. A plurality of carbon fibers are uniformly arranged on the hexagon rings in the circumferential direction. After the fiberglass composite rebars frame is put into the polluted waters, the fiberglass composite rebars frame will sink to the bottom of the water. After a long time, the fiberglass composite rebars frame will be embedded with the underwater silt or stones to be relatively fixed together so that a displacement is uneasy to happen. A carbon fiber eco-grass can be located on a particular water area, like a river-way mouth, the center of a lake, and so on, which can prevent carbon fiber eco-grass from changing the preset position because of the current, wind and other extraneous factors.

The invention discloses a lifting type rain sewage tail-end ecological treatment device. The device comprises a frame surrounding a rain / sewage pipe outlet of a river channel, the frame comprises a left side frame edge, a right side frame edge and a front end frame edge connected with the front end parts of the left and right side frame edges, and a gravel layer is arranged between the frame and ariver bottom; and the left side, right side, and front end frame edges are separately provided with inner and outer layer frame clamping grooves, each inner side adsorption module is inserted into one corresponding inner layer frame clamping groove, each outer side adsorption module is inserted into one corresponding outer layer frame clamping groove, and the top end of each outer side adsorptionmodule is connected with one corresponding buoy. The lifting type rain sewage tail-end ecological treatment device provided by the invention is very suitable for installation with water, and can realize quick replacement of the adsorption modules, and automatically adapt to change of a water level.

The invention discloses a feeding port of a comprehensive pipe canal, which is characterized in that: a feeding cabin is arranged at a feeding port body, at least a ventilated cabin is arranged at one side of the feeding cabin, and a shutter is arranged between the feeding cabin and the ventilated cabin. The bottom part of a pipe canal body under the ventilated cabin is provided with a collecting well, the ventilated cabin is provided with a down pipe which is communicated with the collecting well, and a vertical ladder is arranged between the feeding cabin and the pipe canal body; besides, the top end of the ventilated cabin is provided with a ventilated grill, and a cover board of the feeding port body is the retractable cover board. The invention divides the feeding port into two parts: a periphery part is designed to meet the ventilated function, a window is arranged on a side wall so as to achieve the aim of natural ventilation and solve the drainage problem at the same time; a central part is designed to meet the functions of feeding and personnel in and out, employs the beautiful, theftproof and waterproof glass cover board and exhibits the interior of the pipe canal at the same time. When in normal use, the feeding cover board is opened and the ventilated grill is fixed and arranged once; when in cleaning internal garbage, people can enter into the ventilated cabin through the dismountable shutter on the side wall. The feeding cover board can adopt the self opening cover board so as to let personnel come in and out conveniently.

The invention discloses a purifying device of effluent and making method and using method to aerate water, which is characterized by the following: the inlet pipe displays hollow cylinder shape; one end of inlet pipe connects the other end of composite sprayer glidingly, which transmits water to inlet pipe through pump pipe; the exterior of inlet pipe contains at least two transmitting pipes with equal distance, which transmits air to inlet pipe; the rotary table sprayer is set in the inlet pipe; the negative pressure guide pressurizing loop is set in the top of inlet pipe, which corresponds to sprayer; the sealed negative pressure composite gas-water bin is formed around sprayer; the rotary shaft is set on the exterior of inlet pipe, which connects rack.

The invention provides a submersible-type device for purifying water quality of a landscape water body and with a denitrification function. The submersible-type device comprises an air float bowl and a purification stuffing tank, wherein the purification stuffing tank comprises a tank body, and a denitrification stuffing layer, an aeration device and a biological enzyme charcoal stuffing layer are arranged in the tank body from bottom to top; the air float bowl comprises an air float ring, an air control valve and a horizontal control device, the tank body of the purification stuffing tank is sleeved with the air float ring, the air control valve is used for regulating the amount of air entering the air float ring, the horizontal control device is used for maintaining the balance of the water quality purification device, and water flows upwards from the bottom of the tank body and flows out of the top of the tank body after interacting with the denitrification stuffing layer and the biological enzyme charcoal stuffing layer. The purification device can efficiently remove BOD (biochemical oxygen demand), COD (chemical oxygen demand) and other pollutants in the water body for a long time and can also remove ammonia nitrogen and total nitrogen of the water body.

The invention relates to a submerged plant growth facilitating device based on natural light. The device includes a natural light collecting part and a light source emitting part. The natural light collecting part is used for collecting the natural light and conducting the collected natural light to the light source emitting part through optical fibers; the light source emitting part is arranged under water and is a linear luminous component or a planar luminous component, wherein the light source emitting part adjustable in position is disposed on a light source fixing bracket. The natural light collecting part and the light source emitting part are both electrically connected to a control part. The submerged plant growth facilitating device can effectively introduce light into the bottomof the water, correspondingly submerged plants planted at the bottom underwater can obtain sufficient illumination, the growth of the submerged plants is facilitated and not limited by the depth andtransparency of the water, recovery of the submerged plants in deep water areas and high-turbidity water areas is achieved, eutrophic water can be effectively purified, and the improvement and stability of the ecological environment of the water areas are facilitated.

The invention relates to a culvert type three-dimensional traffic system. The culvert type three-dimensional traffic system comprises an underground structure and a ground structure. A west straight going lane is connected with an east straight going lane, a south straight going lane is connected with a north straight going lane through a central main culvert, and the central main culvert is connected with a south left-turn culvert and a north left-turn culvert. A vehicle enters a north right-turn culvert from the south left-turn culvert to realize the south left turn, and enters a south right-turn culvert from the north left-turn culvert to realize the north left turn. A west left-turn lane sinks, and the vehicle enters an east right-turn culvert through an east west-left-turn culvert torealize the west left-turn, and an east left-turn lane sinks, and the vehicle enters a west right-turn culvert through a west east-left-turn culvert to realize the east left-turn. According to the present invention, the culvert type three-dimensional traffic system is free of lamp control and viaducts, enables the vehicles to pass an intersection traffic system continuously, and adopts a sunken culvert structure, is easy and convenient in construction and low in cost, enables the vehicles to pass smoothly, and does not change the street buildings and the ancillary facilities, and does not influence the urban landscapes. The system is suitable for newly building the intersections and reforming the original intersections with the two-way four lanes, is provided with a sidewalk system, and can save the cost with the connected construction.

The invention is a kind of upright folding garage, which sets a supporting pile and a shed cloth. The character lies in: it has two parts of tank and guiding rail. The tank includes folded piles and shed clothes, there has a rolling wheel on the lower end of the pile, and sets a guiding rail and fixing mechanism. There has a box moving wheel under the tank. There sets a drawing mechanism on the tank and the guiding rail; the lower end of the pile set a upper and a subjacent rolling wheel, the upper one is set on the guiding rail, the subjacent wheel is set on the guiding rail, the subjacent wheel is set in or under the guiding rail. There sets a linking barrier with diamond, triangle or other figure between the two piles, the lower part of the pile sets a upper and a subjacent rolling wheel, the upper one is set on the guiding rail, the subjacent one is set in or under the guiding rail. The device can be assembled easily; the structure is easy to be transmitted and moved.

The invention provides a landscape-diversified countryside sewage treatment system. The landscape-diversified countryside sewage treatment system comprises a water inlet well, an anaerobic tank, an anoxic tank, a contact oxidation tank and an artificial wetland. The landscape-diversified countryside sewage treatment system provided by the invention is used as an effective manner of solving the current countryside sewage treatment difficulty in terms of economy and reliability; vegetations in a filtering tank of the wetland have ornamental values and are especially applied to villages with shortage of land resources, higher agglomeration degree and rural tourism industry basis. Compared with a trickling filtration technology, the landscape-diversified countryside sewage treatment system provided by the invention is free of electricity fee and professional operation and maintenance personnel; compared with an ecological combined pond treatment system, the defects of large occupied area,strong seasonality and high vegetation maintenance input are solved; compared with a contact oxidation treatment system, the defects of poor quality of effluent water, low removal of nitrogen and phosphorus and odor of the effluent water are solved.

The invention discloses a ladder-type denitrification device for mountainous city road runoff. The ladder-type denitrification device for mountainous city road runoff device is formed by series connection of a primary treating vice (11) and a secondary treating device (12). The primary treating vice (11) is composed of a by-pass pipeline (1), a first vegetation growth medium layer (2), a first filter layer (2), a first drainage layer (4), a second filter layer (5), a baffle (6), plant plants (8), a water inlet area (9), an intercommunicating hole (10) and a second vegetation growth medium layer (13). The secondary treating device (12) is composed of a third vegetation growth medium layer (14), a third filter layer (16), a second drainage layer (17), a fourth filter layer (18), a baffle (6), a drainage pipe (7), planted plants (8), the intercommunicating hole (10) and a fourth vegetation growth medium layer (15). The ladder-type denitrification device for mountainous city road runoff device has the advantages that short-time and efficient removing of nitrogen concentration of mountainous city storm runoff is achieved, the occupied space of the device is small, the arrangement is flexible, and the ladder-type denitrification device for mountainous city road runoff device is suitable for nitrogen pollution control of the storm runoff of a heavy-grade road surface.