CN115250890B - Automatic watering control device - Google Patents

Abstract

The invention discloses an automatic irrigation control device which comprises a water control chamber positioned below a water storage chamber, wherein a water control tank is arranged in the water control chamber, a water through pipe is arranged in the water storage chamber, the lower end of the water through pipe penetrates out of the water storage chamber in a sealing way and extends to the upper part of a water control tank opening, the automatic irrigation control device is characterized in that the water through pipe is a hose, the length of the water through pipe exceeds the height of an inner cavity of the water storage chamber, the upper end of the water through pipe is connected with a flow control floating ball floating on the water surface, a limiting hole transversely penetrates through the part of the flow control floating ball immersed in the water surface, an air vent is vertically penetrated through the flow control floating ball, the air vent is in cross communication with the limiting hole, and the lower end of the air vent is in sealing communication with the upper end of the water through pipe. The invention can realize the mechanical automatic water supply irrigation of the irrigation pipe network at regular time and quantity. The dependence of the irrigation control process on electric power is reduced.

Description

Automatic irrigation control device

The application relates to a patent division application of application number 2020109014005 and application date 2020-08-31 in a rock slope ecological restoration system.

Technical Field

The invention relates to the technical field of ecological restoration greening, in particular to an automatic irrigation control device of a rock slope ecological restoration system.

Background

Due to mining resources and road engineering construction in arid and semiarid regions, the topography and ecological environment of a large number of pit-closing mines and roads along the lines are seriously damaged, and a plurality of rock slopes with large gradient and high gradient are formed. The high-steep rock slope is not covered by plant soil, the rain-receiving area is small, the water holding capacity is poor, and the slope has unstable rock due to less rainfall in a drought region, so that the slope vegetation is extremely difficult to repair. And geological disasters such as collapse, stone falling and the like are easily caused because ecology cannot be repaired, and the ecological environment is seriously influenced. Therefore, it is urgently required to repair vegetation on the pit-closing mine in the arid region and the artificial high and steep rock slope along the road.

At present, for low (slow) rock slope in wet and semi-wet areas, vegetation restoration is mainly carried out by two technologies of piling a vegetation soil bag and three-dimensional net spraying vegetation soil (commonly used vegetation concrete) on the slope. However, the vegetation restoration technology for the high-steep rock slope surface in the dry area is still not mature, and two conventional restoration technologies are used for vegetation restoration of the high-steep rock slope surface in the dry area, so that the problems of (1) difficult construction and high cost are solved. The three-dimensional net spray seeding technology has the advantages of large and dangerous anchor rod operation workload on high and steep rock slopes and high construction cost, and the stacking of the plant-growing bags on the high and steep rock slopes with unstable rock mass has high risk, large workload, large plant-growing bag thickness and high cost. (2) applicability is limited by complex terrain environments. The three-dimensional net spray seeding technology has the advantages that the transportation of spray seeding equipment is limited by terrains and roads, the spray seeding water in partial areas is difficult to obtain, the stacking height of the high-steep rock slope is limited, and geological disasters such as collapse of planting soil of the high-steep rock slope or shallow landslide along the slope are easy to occur. (3) The support effect on the rock blocks of the high and steep rock slope is not achieved. (4) The rainwater can not be collected and stored, the irrigation water quantity can not be automatically regulated and controlled, and the water retention property of a single vegetation soil layer is poor, so that long-term sufficient water can not be provided for the vegetation on the high-steep rock slope in a dry area, the vegetation restoration time is long, the effect is poor, and the later cultivation cost is high.

CN201910384331.2 discloses a method for repairing hard slope greening, which comprises cleaning slope, setting anchor rods, paving galvanized iron wire meshes, improving red sandstone into planting soil, paving geomembrane, sowing, establishing an automatic irrigation system, operating and maintaining, improving the mixing of modifier in red sandstone soil layers with different sandstone contents, installing spray heads on an embedded spray system by utilizing an automatic control system, irrigating plant planting by the spray heads, and enabling the spray irrigation system to be automatically controlled according to temperature and humidity. The invention discloses a means for anchoring by adopting an anchor rod and sprinkling irrigation by adopting rainwater collection. However, the following defects still exist that 1 simple anchoring cannot provide a supporting effect with enough strength, and deeper anchoring is difficult to operate, the anchoring risk is high, the slope stability is reduced, and the like. 2, directly collecting rainwater for sprinkling irrigation, wherein dirt is easy to be mixed in the rainwater to cause pipeline blockage, the outdoor environment sprinkling irrigation electric control equipment is restricted by power supply conditions and is easy to fail, and 3, the water retention capacity of the plant growing structure is limited, the plant growing structure needs to rely on more frequent sprinkling irrigation times, the cost is higher, and long-term maintenance is not facilitated.

Therefore, how to provide a technology suitable for ecological restoration of a high-steep rock slope in a dry area, which improves the supporting and fixing effects on the rock blocks of the high-steep rock slope, can collect rainwater better for regular irrigation, reduce the dependence of irrigation control on electric equipment, improve greening effect and ecological restoration effect, and improve construction safety and economy, and becomes a critical problem to be solved in research of vegetation restoration technology of the high-steep rock slope in the dry area.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a rock slope ecological restoration system which can better collect rainwater for regular irrigation, reduce the dependence of irrigation control on electric equipment, improve the slope greening ecological restoration effect and improve the construction safety and economy, so that the system is particularly suitable for restoring vegetation on a high-steep rock slope in a dry area, wherein the high-steep rock slope is a rock slope with a height exceeding 20 meters and a gradient within a range of 50-90 degrees. The invention also provides an automatic irrigation control device capable of conveniently realizing timing and quantitative water supply.

In order to solve the technical problems, the invention adopts the following technical scheme:

The ecological restoration system for the rock slope comprises a rainwater collection and storage unit arranged at the top of the slope, a plant-growing base material fixedly paved on the slope, an anchoring system for fixing the plant-growing base material and a watering pipe network buried in the plant-growing base material, wherein a water inlet end of the watering pipe network is connected with the rainwater collection and storage unit.

Therefore, the surface runoff of the mountain body above the side slope can be collected into the rainwater collecting and storing unit during raining, filtered by the filtering structure and then immersed into the water storage chamber, and clean rainwater can be collected in the water storage chamber to serve as a watering water source. Thus, the rainwater resource is fully utilized, and the particulate matters and the silt impurities in the rainwater are removed after the rainwater is filtered, so that the blockage of a watering pipe network can be better avoided, and the service life of the watering system is prolonged.

As optimization, the water collecting tank is arranged at the lowest part of the mountain body above the side slope.

Thus, the rainwater more conveniently flowing into the water collecting tank from the mountain body above the side slope can be gathered, and the rainwater collecting and utilizing effect is improved.

As optimization, the bottom of the water collecting tank is obliquely arranged, water storage chamber and water collecting tank the lowest part of the bottom is connected.

Therefore, rainwater gathered in the water collecting tank can be more conveniently and smoothly immersed into the water storage chamber.

Further, the bottom of the water collecting tank is triangular, the middle of the water collecting tank protrudes upwards, two sides of the water collecting tank incline downwards, and two water storage chambers are respectively connected and arranged on two sides of the water collecting tank.

Therefore, the water sources are respectively arranged on the two sides of the irrigation pipe network, so that the drainage of the irrigation pipe network to the water resources on the slope is more uniform and stable, and the phenomenon of single-side concentration is avoided.

Further, the filtering structure comprises a pebble layer, a gravel layer, a coarse sand layer, a middle sand layer and a fine sand layer which are paved from top to bottom in sequence, and the granularity of materials of each layer is gradually decreased from top to bottom.

Therefore, 5 layers of sand with different particle diameters are adopted for filtering, the layer-by-layer filtering effect of each layer of filtering material in the water collecting tank can be better improved, and clean water resources can be better collected. Meanwhile, the structure can well reduce the capillary effect in the water collecting tank, avoid the re-evaporation of the collected water and better maintain the water.

Further, the bottom surface of the water collecting tank is obtained by a water division concrete layer poured by concrete.

Thus, the water collecting tank bottom surface with the required gradient is conveniently constructed, and the seepage prevention effect of the water collecting tank bottom surface can be better ensured.

The better choice is that the slope of water catch bowl bottom both sides slope is about 3%, can guide the rainwater to assemble the water storage room that flows into both sides better.

Further, the water storage chamber is a reinforced concrete chamber which is integrally poured.

In this way, it is ensured that it has a good barrier capacity.

Further, water permeable bricks are arranged between the water storage chamber and the fine sand layer at the bottom of the water collecting tank at intervals.

Therefore, sediment in the rainwater can be better ensured to be filtered before entering the water storage chamber, the sediment is prevented from entering the water storage chamber, the smoothness and stability of the irrigation pipe network are ensured, and the service life of the system is prolonged.

Further, the top cover of the water storage chamber is provided with a movable concrete cover plate.

Like this, the water storage chamber is whole to be the confined state, can avoid silt to penetrate from water storage chamber top, also can open the apron and make things convenient for the later maintenance of water storage chamber.

Further, a stainless steel vent pipe is arranged on the concrete cover plate, a pipe orifice at the lower end of the vent pipe is exposed out of the lower surface of the concrete cover plate, and a pipe orifice at the upper end of the vent pipe is higher than the ground and is bent downwards.

Therefore, the water storage chamber is communicated with the atmosphere, water stored in the water storage chamber can be conveniently used as a water source to more smoothly control the water to flow into the irrigation pipe network, and irrigation is realized. And the orifice of the vent pipe is downward so as to prevent earth and stones on the ground from falling into the water storage chamber. In practice, the pipe orifice at the upper end of the ventilation pipe is preferably 50cm higher than the ground, so that soil is prevented from splashing into the pipe orifice during raining.

As optimization, the automatic irrigation control device is arranged between the water storage chamber and the irrigation pipe network and used for controlling the water storage chamber to supply water to the irrigation pipe network in a timing and quantitative mode.

Therefore, the timing and quantitative water supply control of the processing pipe network can be realized, and the timing and quantitative irrigation effect is ensured.

Further, the automatic irrigation control device comprises a water control chamber located below the water storage chamber, a vertically arranged water control tank support is arranged in the water control chamber, the upper end of the water control tank support is hinged to be provided with a water control tank, the specific gravity of the bottom of the water control tank is greater than that of the other parts, and a hinge point is located at the middle part and at the rear position, so that the gravity center is located at the rear position of the hinge point when the water control tank is empty and the gravity center can be forwards (forwards points towards the direction of the outlet end of the water control tank) beyond the position of the hinge point after the water control tank is filled to a certain proportion, the tank opening is upwards and is opposite to the water storage chamber outlet when the water control tank opening is downwards tipped, and the tank opening is opposite to the inlet of a dry flow pipe of an irrigation pipe network.

Like this, the accuse hydroecium has set up the accuse water tank that can overturn, and the water tank center of gravity position makes the accuse water tank empty time tank mouth upwards, and the water storage of top reservoir chamber is poured into the accuse water tank through the delivery port in, and the water injection exceeds the back of certain proportion, and accuse water tank mouth is tipped over downwards, pours into the dry flow pipe entry of watering pipe network with water. Therefore, the quantitative control of the rainwater entering the irrigation pipe network each time is realized by adopting a pure mechanical structure. The electric control valve is not needed, the restriction of electricity consumption is avoided, the reliability and the stability are better, and the service life is longer.

Further, the plane of the water control tank opening is obliquely arranged, and the plane of the tank opening is upward in the empty tank state.

Thus, the water in the water storage tank can better flow into the water control tank in the empty tank state, and the water can better pour out into the main flow pipe inlet of the irrigation pipe network when the water control tank is poured.

Further, the water control tank comprises an external adjusting frame and a tank body arranged in the adjusting frame, the adjusting frame is integrally in a groove shape and hinged to the upper end of the water control tank support, adjusting fixing screws are horizontally arranged on two sides of the adjusting frame in a penetrating mode, the adjusting fixing screws are rotatably connected to the adjusting frame in a screwing mode, the inner end of the adjusting bolt is in butt joint with the tank body to achieve fixation of the tank body, and balancing weights are arranged at the bottom of the adjusting frame in an inserting mode.

Like this, can be through changing the upper and lower position of box in the alignment jig to the cooperation increase and decrease balancing weight, the water yield size in it when the accuse water tank tumbles is adjusted in a flexible way, make the water yield of pouring into the watering pipe network at every turn can adjust to the correspondence of matching better with the side slope area size.

Further, a water pipe is arranged in the water storage chamber, and the lower end of the water pipe penetrates out of the water storage chamber downwards in a sealing manner and extends to the upper part of the water control tank opening.

Thus, rainwater in the water storage chamber can be better accurately introduced into the water control tank by means of the water through pipe.

Further, the water pipe is a hose, the length of the water pipe exceeds the height of the inner cavity of the water storage chamber, the upper end of the water pipe is connected with a flow control floating ball floating on the water surface, a limited hole is transversely and penetratingly arranged on the part of the flow control floating ball immersed below the water surface, an air vent is vertically and penetratingly arranged on the flow control floating ball, the air vent is in cross communication with the limited hole, and the lower end of the air vent is in sealed communication with the upper end of the water pipe.

Thus, the water in the water storage chamber can flow into the water pipe through the limiting hole and flow out into the water control tank, and the limiting hole can be small enough to prolong the time required for water storage in the water control tank to pour once. The arrangement of the flow control floating ball can ensure that no matter how much water remains in the water storage chamber, the flow limiting hole is always at a fixed height from the water surface, and the constant water flow entering the water pipe through the flow limiting hole is ensured. And further, the time required from the water storage in the water control tank to the dumping is ensured to be constant, so that the automatic water supply to the irrigation pipe network at fixed time and fixed quantity is ensured by means of a pure mechanical structure. And meanwhile, the vent holes can realize air exhaust, so that water can be stably supplied downwards when the limiting holes are small enough.

Further, the diameter of the vent hole is more than 4 times of the diameter of the restricted hole. So that the diameter of the vent hole is large enough to avoid the influence of the blocking of the exhaust gas and the water flow to the water flow flowing in through the flow limiting hole.

Further, the lower part of the flow control floating ball is a solid floating ball entity, the upper part of the flow control floating ball is a hollow floating ball cavity, the limiting hole is positioned on the floating ball entity, and the vent hole and the floating ball cavity are isolated and sealed mutually.

Further, the upper end of the flow control floating ball is also provided with a counterweight material inlet communicated with the floating ball cavity.

Thus, the balance weight material can be added into the cavity of the floating ball through the balance weight material inlet, so that the draft of the floating ball is adjusted and changed, and the flow speed of the water flow entering the water pipe through the flow limiting hole is further adjusted. And then can adjust the interval time of each time of water supply as required, make it adapt to the area size of side slope better.

The automatic irrigation control device has the working principle that the floating ball can rise and fall along with the rise and fall of the water level in the water storage chamber, the immersed water depth is kept unchanged, the water pressure of the restricted hole at the 1/4 position of the water control floating ball is unchanged, the water quantity entering the air vent through the restricted hole is controlled stably, the air vent and the floating ball cavity are mutually sealed and isolated, so that the water entering the air vent cannot enter the floating ball cavity, the upward exhaust of the air vent is ensured, the buoyancy and the immersed depth of the floating ball are not influenced, the water entering the air vent flows into the water control tank through the water pipe at the lower end of the floating ball, when the water control tank is used, the gravity center of the water control tank in a non-water state deviates from the water control tank support and deviates to the bottom side of the water control tank, so that when the water control tank does not reach the designed water quantity, the gravity center of the water control tank gradually moves towards the tank opening, when the water quantity reaches the designed water quantity, the water control tank passes over the water tank support position, the water control tank moves to one side of the tank opening, the water control tank is inclined, the water control tank is returned to the upward state after the water control tank is inclined, and the automatic cycle is realized repeatedly and periodically.

As optimization, the irrigation pipe network comprises a dry flow pipe which is downwards arranged along the slope surface of the side slope, a water inlet at the upper end of the dry flow pipe is connected with the automatic irrigation device (particularly connected with the bottom of the water control chamber), branch flow pipes are communicated with each other at intervals on the dry flow pipe, the branch flow pipes are horizontally arranged along the side slope and are buried in the plant-growing base material, and water seepage holes are formed in the branch flow pipes at intervals.

Like this, automatic watering device is regularly quantitative in with watering water supply to the dry flow pipe during watering, through each tributary pipe and the infiltration hole on, in direct infiltration enters into the plant-growing substrate, can avoid the evaporation of water better, improved the utilization effect to the water resource.

The water outlet comprises a water outlet joint communicated with the main flow pipe, a sheet-shaped water receiving protrusion is formed by extending the lower side edge position of the joint of the water outlet joint and the main flow pipe to the inclined upper side of the inner cavity of the main flow pipe, a water interception groove is formed by surrounding the edge of the water receiving protrusion and the inner cavity of the main flow pipe, and the outer end of the water outlet joint is fixedly connected with the tributary pipe.

Therefore, each irrigation is timed and quantitative irrigation, and the problems that irrigation is sufficient at a position close to a water source and irrigation is insufficient at the tail end of a pipe network due to long-time small-flow irrigation are solved. The regular quantitative irrigation has the characteristics of large water volume and short time, and if the regular irrigation pipe network is arranged, the equal irrigation of branch pipes with different heights on the same dry pipe cannot be realized. Therefore, the interception type water outlet structure is arranged in the application. When the water is quantitatively supplied in the dry flow pipe each time, the quantitatively supplied water flows downwards from the dry flow pipe, and each branch pipe actively intercepts the water by the intercepting groove to smoothly and rapidly introduce the water into each branch pipe, so that the water supply effect of each branch pipe is ensured. Meanwhile, the structure can ensure that the water quantity of each branch flow pipe on different heights is balanced by adjusting the size of the intercepting groove, and a balanced irrigation effect is provided.

As optimization, the upward inclination angle of the water receiving protrusion is about 45 degrees.

Therefore, the water retention device can ensure better water retention effect and has better structural strength, and the water retention device is prevented from being quickly damaged due to flushing by water flow.

As optimization, the cut-off type water outlet is arranged on the dry flow pipe at intervals from top to bottom and left to right.

Thus, the uniformity of the trapped water quantity of each branch pipe is improved.

As optimization, the end part of the water inlet end of the tributary pipe is bent upwards or inclined and then connected to the water outlet joint.

Thus, the intercepted irrigation water is more conveniently led into each branch flow pipe by each intercepting water outlet.

Further, the water inlet end portion of the branching pipe is bent or inclined upward to a height of 50cm. Irrigation water can be better introduced into the branch pipes.

As a structural mode, the interception area of the interception groove of each interception type water outlet gradually increases from top to bottom along the dry flow pipe.

Therefore, the branch pipes can cut off water simultaneously under the condition of timing and quantitative irrigation. The water flow amount intercepted by each branch pipe is approximately equal in the same irrigation water flow time of the main pipe. And the irrigation water in each branch flow pipe flows in approximately simultaneously, so that the uniformity of the irrigation of the whole irrigation pipe network can be better improved.

As another structural mode, the whole edge of the water receiving bulge in each cut-off type water outlet is semi-elliptical, and the diameter of the short side is the same as the inner diameter of the dry flow pipe, so that the cut-off groove occupies one half of the cross-sectional area of the dry flow pipe.

By adopting the structure, a pair of branch pipes which are opposite to each other at the left and right sides in the middle and upper part of the main flow pipe can intercept irrigation water, and overflow from the interception type water outlet to flow downwards after the irrigation water is filled. So that the branch pipes with different heights are filled with water one by one from top to bottom. This has the advantage of enabling the amount of water required for each irrigation to be calculated and controlled more conveniently and accurately. The defect is that the dry flow pipes above are fully filled with water, so that the watering is always longer, the watering uniformity can be influenced, and the watering uniformity can be improved by adjusting the interval between the adjacent dry flow pipes in a mode of gradually reducing from top to bottom.

Further, the diameter of the main flow pipe is about 10cm, and the diameters of the water outlet joint and the branch flow pipe are about 5 cm. Better ensures the drainage and irrigation effect.

As optimization, a layer of water guide layer with strong capillary action is arranged in the plant-growing substrate, and the branch flow pipe is buried in the position of the water guide layer.

Thus, the watering water which is favorable for the seepage of the seepage holes of the branch pipes can slowly permeate to the whole side slope through the water guide layer to realize watering.

The better choice is that the water guiding layer is obtained by adopting a geotechnical blanket, and the tributary pipe is wrapped in the geotechnical blanket.

Therefore, the geotechnical blanket has excellent capillary effect, uniform water distribution can be better realized, and meanwhile, the branch pipes are wrapped in the geotechnical blanket to have good protection effect, so that insects, sediment and the like in soil are prevented from entering and damaging the branch pipes.

Further, an exhaust pipe extending upwards from the plant substrate and communicating with the atmosphere is arranged at the tail end of the branch pipe.

Therefore, the air can be quickly exhausted through the exhaust pipe, the intercepted irrigation water can be more smoothly introduced into the inlet end of the branch pipe, the whole pipeline is filled with the irrigation water entering the branch pipe, and then the irrigation is realized by slowly water seepage through the water seepage holes. The defect that the watering effect is good at one end close to the dry flow pipe and poor at one end far away from the dry flow pipe is avoided. Better ensures the uniformity of irrigation.

Further, the upper end of the exhaust pipe is bent downward.

Can better avoid the blockage caused by the entry of soil or sundries into the exhaust pipe.

Further, the upper end of the exhaust pipe is higher than the corresponding closure type water outlet of the branch pipe. The waste of pouring water rushing out of the exhaust pipe can be better avoided, and the height of the exhaust pipe can be about 1 meter during implementation. When in use, the diameter of the exhaust pipe can be 1cm, so that the exhaust requirement can be met, and sundries can be better prevented from entering.

In the implementation, water seepage holes are formed on the pipe wall at the lower edge of the branch pipe at intervals of about 15cm, so that the slope in the whole branch pipe range can be uniformly irrigated.

As optimization, the anchoring system comprises a plurality of rib band nets transversely arranged along the side slope, a space for stacking plant-growing base materials is formed on the rib band nets, two sides of each rib band net are fixed on anchor cables vertically arranged along the side slope, and the upper ends of the anchor cables are fixed on anchor piles at the top of the side slope.

In this way, the transversely arranged reinforcement net bears the gravity of the plant growth substrate on the slope, and the gravity is transferred to the anchor pile at the top of the slope through the anchor rope. The anchor pile is constructed at the top of the slope, is more convenient, simple and safe, can be constructed deeper to bear larger pulling force, is simultaneously more difficult to drop anchors due to the fact that the vertical arrangement of the top anchor pile is pulled downwards obliquely compared with the mode that the vertical type anchor pile is arranged on the slope, can enable the anchor rope to generate pressure in the slope so as to maintain stability of the rock mass of the slope, and is more beneficial to maintaining structural stability of the slope without deep drilling of anchor holes in the slope. Therefore, the fixing of the plant-growing base material on the side slope can be realized more conveniently, rapidly, efficiently and reliably, and the reliability of ecological restoration is improved.

Further, the anchor cables are arranged in groups, each group is provided with two anchor cables, the two anchor cables are arranged at intervals along a plane perpendicular to the slope, a plurality of reinforcement belt nets are arranged between every two adjacent groups of anchor cables at intervals along the height direction of the slope, and the inner ends and the outer ends of the two sides of the reinforcement belt nets are respectively fixed on the two anchor cables of each group.

The two anchor cables in each group can be more convenient for installation and bearing of the reinforcement belt net, the anchor cables and the reinforcement belt net divide the slope into a plurality of corresponding grid spaces, so that an effective three-dimensional flexible force transmission structure is formed on the slope, the plant-growing materials stacked in each space bear gravity by the reinforcement belt net and act on the double-layer anchor cables on the two sides, and then are transmitted to anchor piles on the top of the slope through the double-layer anchor cables, so that the pressure of the plant-growing base material of the upper grid space unit to the plant-growing base material of the lower grid space unit is small and cannot be influenced by the height of the slope, the height of the plant-growing base material of the slope is not limited by the height of the slope, and the fixation of the plant-growing materials can be better realized.

The anchor cable is preferably a high strength cable to better ensure strength.

Further, the rib band net is composed of a rib band and positioning steel bars at two ends, the positioning steel bars at two ends of the rib band net are horizontally arranged on the slope surface, and the positioning steel bars at two ends of the rib band net are connected with double-layer anchor cables at two sides through anchor cable buckles.

Therefore, the installation, connection and fixation of the reinforcement belt net can be facilitated, the fixation reliability between the reinforcement belt net and the anchor cable can be better ensured, and the reinforcement belt is prevented from being separated from the anchor cable under the action of the gravity of the plant-growing material.

The better choice is that the length of the rib band net is about 2m, the width is about 23cm, and the vertical interval of the rib band net on the slope is about 1.5 m. Therefore, the gravity of the plant growth material in the grid unit where each rib belt net is located is moderate, and the stability and reliability of integral fixation are ensured.

Further, in each group of anchor cables, the inner anchor cable is kept at a distance from the bottom of the slope.

Therefore, the innermost layer in the plant-growing substrate is the foreign soil layer, so that the structure can ensure the retaining and fixing effects of the reinforcement belt net on the plant-growing substrate, and meanwhile, a section of interval distance is reserved between the reinforcement belt net and the bottom of the slope, so that the foreign soil layer at the bottom of the slope, where the plant-growing substrate is piled up, can be connected into a piece, and the root system of plant growth can better grasp the rock surface of the slope to extend and grow into a piece after entering the foreign soil layer. And further, after plants grow out, the structural stability of the whole slope greening system can be better improved by means of plant roots. The distance is preferably 2cm, so that the above effect can be optimized.

Further, the anchor pile is a steel reinforced concrete pile, the pile body of the anchor pile is embedded in a rock stratum at the top of a slope, and anchor rope holes which are penetrated front and back and incline are respectively formed at the pile top and the middle lower part (preferably about 20cm away from the ground) of the anchor pile, and an anchor device is arranged in each anchor rope hole and used for fixing an anchor rope.

Therefore, the structural strength of the anchor pile can be better ensured, the bearing effect on the anchor rope is ensured, and the gravity load of the slope plant-growing base material transmitted by the anchor rope is born.

Further, the edge position of the top of the side slope corresponding to each group of anchor cables is also provided with a guide pier, a guide limiting hole is formed in the guide pier in a penetrating manner along the front-back direction, and the upper ends of the anchor cables penetrate through the guide limiting hole and are then fixed on the anchor piles backwards.

Like this, the anchor rope changes backward and links to each other with the anchor stake through the direction of direction mound, and the direction mound can be with each group anchor rope according to the design arrangement in the different positions on slope top, and better bearing power transmission, also can decompose partial anchor rope pulling force and offset, has improved whole anchoring system's stability and reliability better. The guide piers are arranged at intervals of about 2m and are consistent with the intervals of two adjacent groups of anchor cables during implementation.

Further, the guide pier is a reinforced concrete pier and is embedded in the bedrock at the top of the slope, steel pipes are buried at the top and the middle lower part of the guide pier along the front-back direction respectively, and the inner holes of the steel pipes form guide limiting holes of the guide pier.

Thus, the construction setting of the guide pier is facilitated. During implementation, a steel pipe with the inner diameter about 1.1 times of the diameter of the designed anchor cable is preferably adopted, so that the anchor cable can pass through conveniently.

Further, a row of positioning rods are further vertically arranged on the slope surface where each group of anchor cables correspond, the lower ends of the positioning rods are fixed to the slope surface, positioning holes are formed in the tops and the middle portions of the positioning rods in a penetrating mode along the anchor cable direction, and the anchor cables slidably penetrate through the positioning holes.

Thus, because the pulling force of the anchor cable is borne by the anchor pile, the positioning rod basically does not bear the gravity of the plant-growing base material, and the positioning rod mainly keeps the anchor cable to be arranged according to the required position and interval. Therefore, the lower end of the positioning rod is only required to be fixed to the slope surface shallowly, and a deep anchoring hole is not required to be drilled on the slope surface to damage the slope surface structure. Therefore, the construction is convenient, and the overall stability of the system can be better improved.

In implementation, the better size parameter selection is that the spacing between each row of positioning rods is about 2-3m, the length of each positioning rod outside the slope rock wall is about 30cm, the distance between the middle lower positioning hole of each positioning rod and the slope is about 2cm, and the inner diameter of each positioning hole is about 1.1 times of the diameter of the designed anchor cable. The positioning effect can be optimized.

The anchor rod is fixedly connected to the anchor rod through the anchor rope buckle, and the anchor rope is in a prestress state for applying pressure to the locating rod in the slope body.

Like this, the setting of stock for both ends are strained about the anchor rope and are the prestressing force state of inwards exerting pressure, make the locating lever by inwards compressing tightly like this, be difficult for droing more, can improve the stability and the reliability of whole anchoring system better.

Thus, after the anchoring system is arranged, each group of vertical anchor cables and horizontal reinforcement belt nets form an effective three-dimensional flexible force transmission structure on the high-steep slope, when the plant-growing base materials are paved on the high-steep slope, the gravity of all plant-growing base materials is transmitted to the vertical double-layer anchor cables through the reinforcement belt nets, and then transmitted to the anchor piles at the top of the slope through the double-layer anchor cables, so that the top-anchored plant-growing base material fixing system (namely the anchoring system) is formed. The roof anchor type plant substrate fixing system divides the slope plant substrate into a plurality of units with the thickness of 2m multiplied by 1.5m, the units are mutually independent, and the gravity of each unit is transmitted to an anchor pile at the top of the slope by the tension of an anchor rope so that the pressure of the plant substrate of the upper unit to the plant substrate of the lower unit is small and cannot be influenced by the slope height, therefore, the height of the slope plant substrate is not limited by the height of the slope, the thickness of the plant substrate can be kept unchanged along the whole slope, meanwhile, the damage of a single unit only has a small influence on one unit at the lower part adjacent to the slope, thus the integral collapse disaster of the plant substrate cannot occur, in addition, compared with the slope stress anchor rod of the three-dimensional plant spraying technology, the roof anchor type plant substrate fixing system is not influenced by the downward gravity of the plant substrate, the distance between the fixed points is large, the requirement of the embedding depth is low, the high dangerous work load of the slope of high abrupt rock can be greatly reduced, the construction difficulty and the safety is effectively improved, and the slope is not influenced by the fact that the slope is influenced by the vertical rock of one positioning rod, but the slope is not influenced by the slope, and the stability is not influenced by the opposite effect.

As optimization, the plant-growing base material comprises a Water Guest soil layer paved on the bottom surface of the side slope, a plant-growing layer arranged above the Water Guest soil layer, plant seeds are contained in the plant-growing layer, a water-retaining layer is further arranged above the plant-growing layer, and at least one layer of gravel material is arranged in the water-retaining layer.

Therefore, the soil layer holding Water Guest is connected with the rocky slope, has good water absorption and strong water holding capacity, and is mainly used for storing water irrigated by the rain collecting irrigation system on the rocky slope, providing long-term stable water for vegetation growth of the rocky slope, and after plant seeds germinate in the plant growing layer, the root system is rolled into the soil layer holding Water Guest to absorb the water and nutrient growth. Meanwhile, the water-retaining layer mainly formed by the gravel material is arranged, so that the advantage of weak capillary water action of the gravel material can be utilized, water evaporation can be better avoided, and water-retaining maintenance is realized. Is more beneficial to the growth and repair of the vegetation on the side slope. In the implementation, the soil layer thickness of Water Guest is preferably about 10cm, so that the effect can be better ensured.

As an optimization option, the Water Guest soil layer is prepared by adopting three-dimensional net spraying. The construction method has the characteristics of simplicity, convenience and rapidness in construction, and is more suitable for construction water-relative abundant areas.

As another optimization choice, the Water Guest soil layer is obtained by piling up a soil bag. Has the characteristic of low cost, and is more suitable for areas with relatively lack of construction water.

Further, a water-guiding layer with strong capillary action is arranged between the Water Guest soil layer and the plant-growing layer.

Therefore, the water guide layer can uniformly distribute the water for irrigation to the Water Guest soil layer of the whole slope surface, and the irrigation effect is better ensured. Meanwhile, the water guide layer can effectively increase the distance between the upper and lower adjacent pipelines of the horizontal branch pipe for irrigation, reduce the consumption of the branch pipe and reduce the engineering cost.

Further, the water guiding layer is obtained by laying the geotechnical blanket. Has the advantages of low cost, easy implementation, good water guide effect, etc.

Further, a branch pipe for irrigation is arranged in the geotechnical blanket in a wrapping mode. The water poured out from the tributary pipe directly passes through the geotechnical blanket water guide layer, so that uniform water distribution on a slope surface is realized, and the uniformity of pouring is better improved. Meanwhile, the protection of the branch flow pipe is facilitated, and the service life of the branch flow pipe is prolonged.

In practice, the thickness of the geotechnical blanket is preferably about 1 cm. If the water distribution and water guide effect is too thin, the range of water guide and plant root growth are easily affected if the water distribution and water guide effect is too thick.

In practice, the plant growth layer can be formed by mixing plant seeds with plant growth materials, stirring and pressing, and the thickness is preferably about 8 cm. The plant growth material may be a mixture of crushed straw, organic fertilizer, plant growth regulator and soil, and may be specifically a prior formulation technology, which is not described in detail herein.

As an optimization, the water-retaining layer is composed of two layers of straw carpets and a layer of gravel material sandwiched between the two layers of straw carpets.

Therefore, the straw blanket at the inner layer can be used as transition buffer between the gravel material and the plant growth layer, which is beneficial to breaking out the water retention layer for plant growth, the straw blanket at the outer layer can prevent the gravel from sliding off before being fixed by vegetation growth, and meanwhile, the straw blanket can introduce organisms such as external insect birds and the like to stay or stay, so that part of the original plant seeds are brought into growth, and the ecological restoration is beneficial. Meanwhile, the straw blanket can be used as a plant nutrition source after being decayed for a period of time, so that the whole straw blanket is more beneficial to plant growth and ecological restoration of the side slope.

Preferably, the layer of pebble material consists of a pebble-three-dimensional polymeric web, in particular obtained by filling a three-dimensional polymeric web with pebbles having a particle size of 0.5-2 cm.

Thus, the construction is more convenient. In practice, the thickness of the two layers of straw mats is preferably about 2cm, the thickness of the corner gravel material layer formed by the middle corner gravel-three-dimensional high polymer fiber net is preferably about 4cm, and the pore diameter of the fiber net is preferably 1-2.5cm, so that the effect can be better ensured.

As optimization, the plant-growing layer is paved by prefabricated plant-growing layer building blocks, and the water-retaining layer is paved by prefabricated water-retaining layer building blocks.

Therefore, the plant-growing layer and the water-retaining layer are produced in a factory standardized mode to form a building block structure, and the building block structure is constructed by simply piling and fixing, so that the construction efficiency is greatly improved. The block structure preferably employs rectangular blocks of length x width=74 cm x 49 cm.

As optimization, the net type pin is also arranged, the net type pin consists of a pin and a pull net connected with the pins at the tail part of the pin, and the net type pin penetrates through the plant growth layer building block and the water guide layer from the outer side of the water retention layer building block and is inserted into and fixed in the Water Guest soil layer.

Thus, the plant-growing substrate structure with stable and reliable structure is more beneficial to high-efficiency and rapid construction.

In particular, the mesh pin is preferably made of a high corrosion resistant polymer material. During construction, the water-retaining layer building blocks and the plant-growing layer building blocks can be fixed together through net-shaped pins in advance to form a combined layer of the plant-growing layer and the water-retaining layer. The length of the pin is preferably about 25cm, which is 9cm longer than the combined thickness of the plant-growing layer and the water-retaining layer, and the combined layer with the net-shaped pin is manually fixed on a Water Guest soil layer through the pin after the plant-growing layer and the water-retaining layer are transported to the site, so that the plant-growing layer and the water-retaining layer are fixed on a slope and a multi-layer water-retaining value base material with strong water retention property is formed. The method has the characteristics of very convenient, fast and efficient construction.

The scheme of the application has the advantages that the ① roof anchor type plant substrate fixing structure can realize that the laying height of the plant substrate of the steep rocky side slope is not limited by the slope gradient and the height, the laying thickness can be kept unchanged along the whole slope height, the ② roof anchor type plant substrate fixing structure can effectively support the slope of the steep rocky side slope, the slope stability is improved, the ③ roof anchor type plant substrate fixing structure can unitarily fix the plant substrate, the integral collapse disaster of the plant substrate can not occur, the slope positioning rod is less, the engineering quantity and the engineering cost are effectively reduced, the ④ rainwater collecting irrigation system can realize the collection of slope roof rainfall, the automatic control of irrigation water quantity, the natural rainfall is effectively utilized, the post-stage cultivation cost is effectively reduced, the ⑤ multi-layer type water-retaining plant substrate can effectively retain water, the slope can realize the long-term stable water supply, the ⑥ multi-layer water-retaining plant substrate can realize the standardized production and construction, the assembly process is simple, the construction speed is fast, the safety and the economy is economical.

In conclusion, the invention has the advantages of better collecting the rainwater for regular irrigation, reducing the dependence of irrigation control on electric equipment, improving the ecological restoration effect of slope greening and improving the construction safety and economy. Is particularly suitable for repairing and greening vegetation on high-steep rock slope surfaces in dry areas.

Drawings

FIG. 1 is a schematic view of a portion of a rain collecting watering system according to an embodiment of the present invention.

Fig. 2 is an enlarged partial schematic view of the individual stormwater collection and storage units of fig. 1 showing the filter structure.

Fig. 3 is a schematic view of the individual automatic watering control of fig. 1.

Fig. 4 is a schematic structural diagram of the single flow control float ball part in fig. 3.

Fig. 5 is a schematic view of the structure of the separate dry pipe, branch pipe and water outlet joint in fig. 1.

Fig. 6 is a schematic view of an anchoring system according to an embodiment of the present invention.

Fig. 7 is a left side view of fig. 6.

Fig. 8 is a schematic view of the construction of the anchor pile portion of fig. 7.

Fig. 9 is a schematic view of the guide pier portion of fig. 6.

Fig. 10 is a schematic view of the webbing portion of fig. 6 from a top view.

Fig. 11 is a schematic view of the positioning rod portion of fig. 6 from a top view.

Fig. 12 is a schematic view of the structure of a single plant substrate according to an embodiment of the present invention.

Fig. 13 is a schematic structural view of a mesh pin according to an embodiment of the present invention.

Fig. 14 is a side view in the other direction of fig. 13.

FIG. 15 is a schematic structural view of a prefabricated member for slope restoration construction in an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Best mode for carrying out the invention as shown in fig. 1 to 15.

The ecological restoration system for the rock slope comprises a rainwater collection and storage unit arranged at the top of the slope, a plant-growing substrate C fixedly paved on the slope, an anchoring system B for fixing the plant-growing substrate and an irrigation pipe network A-4 buried in the plant-growing substrate, wherein the water inlet end of the irrigation pipe network is connected with the rainwater collection and storage unit, the rainwater collection and storage unit (see figure 1) comprises a water collecting tank A-1 arranged at the top of the slope and adjacent to the slope, a filtering structure is arranged in the water collecting tank, the edge of the water collecting tank is connected with a water storage chamber A-2, water in the water collecting tank can be immersed into the water storage chamber, and the water storage chamber is connected with the water inlet end of the irrigation pipe network A-4. Wherein the rainwater collecting and storing unit and the irrigation pipe network form a rainwater collecting and irrigation system A.

Therefore, the surface runoff of the mountain body above the side slope can be collected into the rainwater collecting and storing unit during raining, filtered by the filtering structure and then immersed into the water storage chamber, and clean rainwater can be collected in the water storage chamber to serve as a watering water source. Thus, the rainwater resource is fully utilized, and the particulate matters and the silt impurities in the rainwater are removed after the rainwater is filtered, so that the blockage of a watering pipe network can be better avoided, and the service life of the watering system is prolonged.

Wherein, the water catch bowl sets up in the mountain body lowest department above the side slope.

Thus, the rainwater more conveniently flowing into the water collecting tank from the mountain body above the side slope can be gathered, and the rainwater collecting and utilizing effect is improved.

Wherein, the water catch bowl bottom slope sets up, and the water storage room and the water catch bowl bottom lowest department link up.

Therefore, rainwater gathered in the water collecting tank can be more conveniently and smoothly immersed into the water storage chamber.

Wherein, the water catch bowl bottom is the triangle-shaped of middle upward bulge both sides downward sloping, and the water storage room has two and links up respectively and set up in the water catch bowl both sides.

Therefore, the water sources are respectively arranged on the two sides of the irrigation pipe network, so that the drainage of the irrigation pipe network to the water resources on the slope is more uniform and stable, and the phenomenon of single-side concentration is avoided.

The filtering structure is described with reference to fig. 1 and 2, and comprises a pebble layer A-1-1, a gravel layer A-1-2, a coarse sand layer A-1-3, a middle sand layer A-1-4 and a fine sand layer A-1-5 which are paved from top to bottom in sequence, wherein the granularity of each layer of material decreases from top to bottom in sequence.

Therefore, 5 layers of sand with different particle diameters are adopted for filtering, the layer-by-layer filtering effect of each layer of filtering material in the water collecting tank can be better improved, and clean water resources can be better collected. Meanwhile, the structure can well reduce the capillary effect in the water collecting tank, avoid the re-evaporation of the collected water and better maintain the water.

Wherein, the bottom surface of the water collecting tank is obtained by a water diversion concrete layer A-1-6 poured by concrete.

Thus, the water collecting tank bottom surface with the required gradient is conveniently constructed, and the seepage prevention effect of the water collecting tank bottom surface can be better ensured.

The better choice is that the slope of water catch bowl bottom both sides slope is about 3%, can guide the rainwater to assemble the water storage room that flows into both sides better.

Wherein, the water storage chamber A-2 is a reinforced concrete chamber which is integrally poured.

In this way, it is ensured that it has a good barrier capacity.

Wherein, water permeable bricks A-2-1 are arranged between the water storage chamber A-2 and the fine sand layer A-1-5 at the bottom of the water collecting tank at intervals.

Therefore, sediment in the rainwater can be better ensured to be filtered before entering the water storage chamber, the sediment is prevented from entering the water storage chamber, the smoothness and stability of the irrigation pipe network are ensured, and the service life of the system is prolonged.

Wherein, the top cover of the water storage chamber is provided with a movable concrete cover plate A-2-2.

Like this, the water storage chamber is whole to be the confined state, can avoid silt to penetrate from water storage chamber top, also can open the apron and make things convenient for the later maintenance of water storage chamber.

Wherein, be provided with stainless steel's breather pipe A-2-3 on the concrete apron, breather pipe lower extreme mouth of pipe exposes in concrete apron lower surface, and breather pipe upper end mouth of pipe is higher than ground and mouth of pipe bending set up downwards.

Therefore, the water storage chamber is communicated with the atmosphere, water stored in the water storage chamber can be conveniently used as a water source to more smoothly control the water to flow into the irrigation pipe network, and irrigation is realized. And the orifice of the vent pipe is downward so as to prevent earth and stones on the ground from falling into the water storage chamber. In practice, the pipe orifice at the upper end of the ventilation pipe is preferably 50cm higher than the ground, so that soil is prevented from splashing into the pipe orifice during raining.

In this embodiment, referring to fig. 1, 3-4, the automatic irrigation control device a-3 is further included between the water storage chamber and the irrigation pipe network, and the automatic irrigation control device is used for controlling the water storage chamber to supply water to the irrigation pipe network in a timing and quantitative manner.

Therefore, the timing and quantitative water supply control of the processing pipe network can be realized, and the timing and quantitative irrigation effect is ensured.

The automatic irrigation control device A-3 comprises a water control chamber A-3-4 positioned below the water storage chamber, wherein a vertically arranged water control tank support A-3-6 is arranged in the water control chamber, the upper end of the water control tank support is hinged with a water control tank A-3-5, the specific gravity of the bottom of the water control tank is greater than that of the rest parts, and the hinged point is positioned at the middle part at the rear position, so that the gravity center is positioned at the rear position of the hinged point when the water control tank is empty and the gravity center can be forwards (forwards points towards the outlet end of the water control tank) beyond the hinged point when the water control tank is empty, the tank opening is upwards and is opposite to the water outlet of the water storage chamber, and the tank opening is opposite to the inlet of a dry flow pipe of the irrigation pipe network when the water control tank opening is downwards tipped.

Like this, the accuse hydroecium has set up the accuse water tank that can overturn, and the water tank center of gravity position makes the accuse water tank empty time tank mouth upwards, and the water storage of top reservoir chamber is poured into the accuse water tank through the delivery port in, and the water injection exceeds the back of certain proportion, and accuse water tank mouth is tipped over downwards, pours into the dry flow pipe entry of watering pipe network with water. Therefore, the quantitative control of the rainwater entering the irrigation pipe network each time is realized by adopting a pure mechanical structure. The electric control valve is not needed, the restriction of electricity consumption is avoided, the reliability and the stability are better, and the service life is longer.

Wherein, the plane slope setting that accuse water tank mouth place, and the plane that the case mouth place upwards when empty case state.

Thus, the water in the water storage tank can better flow into the water control tank in the empty tank state, and the water can better pour out into the main flow pipe inlet of the irrigation pipe network when the water control tank is poured.

The water control tank comprises an external adjusting frame A-3-3 and a tank body arranged in the adjusting frame, the adjusting frame is integrally in a groove shape and hinged to the upper end of the water control tank support, adjusting fixing screws are horizontally arranged on two sides of the adjusting frame in a penetrating mode, the adjusting fixing screws are rotatably connected to the adjusting frame in a rotating mode, the inner ends of the adjusting bolts are abutted to the tank body to achieve fixing of the tank body, and balancing weights A-3-7 are arranged at the bottom of the adjusting frame in an inserting mode.

Like this, can be through changing the upper and lower position of box in the alignment jig to the cooperation increase and decrease balancing weight, the water yield size in it when the accuse water tank tumbles is adjusted in a flexible way, make the water yield of pouring into the watering pipe network at every turn can adjust to the correspondence of matching better with the side slope area size. In specific implementation, the middle part of the lower end of the adjusting frame is provided with a hinge shaft which is horizontally arranged and is rotatably hinged at the upper end of the water control tank bracket by means of the hinge shaft. In the concrete implementation, the upper end of the empty water tank bracket can be designed into a U-shaped fork shape so as to be convenient for installing the water control tank, the water control tank can be opened upwards when no water exists by adjusting the installation position and the specific gravity during the installation of the water control tank, and forms an angle of about 15 degrees with the horizontal plane, and the opening downwards forms an angle of about 15 degrees with the horizontal plane when water in the water tank falls down after the designed water quantity is reached. Therefore, the water tank can return to the state that the opening is upward after the water is poured, and the water tank can be poured after the design water quantity is reached.

Wherein, the water storage chamber is internally provided with a water pipe A-3-2, and the lower end of the water pipe passes through the water storage chamber downwards in a sealing way and extends to the upper part of the water control tank opening.

Thus, rainwater in the water storage chamber can be better accurately introduced into the water control tank by means of the water through pipe.

The water-supply pipe A-3-2 is a hose, the length of the water-supply pipe A-3-2 exceeds the height of the inner cavity of the water storage chamber, the upper end of the water-supply pipe is connected with a flow-control floating ball A-3-1 floating on the water surface, a limited hole A-3-1c is transversely penetrated and arranged on the part of the flow-control floating ball which is immersed below the water surface, a vent hole A-3-1d is vertically penetrated and arranged on the flow-control floating ball, the vent hole is communicated with the limited hole in a crossing way, and the lower end of the vent hole is communicated with the upper end of the water-supply pipe in a sealing way.

Thus, the water in the water storage chamber can flow into the water pipe through the limiting hole and flow out into the water control tank, and the limiting hole can be small enough to prolong the time required for water storage in the water control tank to pour once. The arrangement of the flow control floating ball can ensure that no matter how much water remains in the water storage chamber, the flow limiting hole is always at a fixed height from the water surface, and the constant water flow entering the water pipe through the flow limiting hole is ensured. And further, the time required from the water storage in the water control tank to the dumping is ensured to be constant, so that the automatic water supply to the irrigation pipe network at fixed time and fixed quantity is ensured by means of a pure mechanical structure. And meanwhile, the vent holes can realize air exhaust, so that the flow limiting holes can stably supply water downwards.

Wherein the diameter of the vent hole A-3-1d is more than 4 times of the diameter of the limiting hole A-3-1 c. So that the diameter of the vent hole is large enough to avoid the influence of the blocking of the exhaust gas and the water flow to the water flow flowing in through the flow limiting hole.

The lower part of the flow control floating ball is a solid floating ball entity A-3-1a, the upper part of the flow control floating ball is a hollow floating ball cavity A-3-1b, the limiting hole is positioned on the floating ball entity A-3-1a, and the vent hole and the floating ball cavity A-3-1b are mutually isolated and sealed.

Wherein, the upper end of the flow control floating ball is also provided with a counterweight material inlet communicated with the floating ball cavity.

Thus, the balance weight material can be added into the cavity of the floating ball through the balance weight material inlet, so that the draft of the floating ball is adjusted and changed, and the flow speed of the water flow entering the water pipe through the flow limiting hole is further adjusted. And then can adjust the interval time of each time of water supply as required, make it adapt to the area size of side slope better.

The automatic irrigation control device has the working principle that the floating ball can rise and fall along with the rise and fall of the water level in the water storage chamber, the immersed water depth is kept unchanged, the water pressure of the restricted hole at the 1/4 position of the water control floating ball is unchanged, the water quantity entering the air vent through the restricted hole is controlled stably, the air vent and the floating ball cavity are mutually sealed and isolated, so that the water entering the air vent cannot enter the floating ball cavity, the upward exhaust of the air vent is ensured, the buoyancy and the immersed depth of the floating ball are not influenced, the water entering the air vent flows into the water control tank through the water pipe at the lower end of the floating ball, when the water control tank is used, the gravity center of the water control tank in a non-water state deviates from the water control tank support and deviates to the bottom side of the water control tank, so that when the water control tank does not reach the designed water quantity, the gravity center of the water control tank gradually moves towards the tank opening, when the water quantity reaches the designed water quantity, the water control tank passes over the water tank support position, the water control tank moves to one side of the tank opening, the water control tank is inclined, the water control tank is returned to the upward state after the water control tank is inclined, and the automatic cycle is realized repeatedly and periodically.

Referring to fig. 1 and 5, the irrigation pipe network a-4 includes a dry flow pipe a-4-1 arranged downward along the slope of the side slope, a water inlet at the upper end of the dry flow pipe is connected with the automatic irrigation device (specifically connected with the bottom of the water control chamber), branch flow pipes a-4-3 are communicated with each other at intervals on the dry flow pipe, the branch flow pipes are horizontally arranged along the side slope and are buried in the plant-growing substrate, and water seepage holes a-4-3a are arranged on the branch flow pipes at intervals.

Like this, automatic watering device is regularly quantitative in with watering water supply to the dry flow pipe during watering, through each tributary pipe and the infiltration hole on, in direct infiltration enters into the plant-growing substrate, can avoid the evaporation of water better, improved the utilization effect to the water resource.

The main flow pipe A-4-1 is provided with a plurality of intercepting type water outlets A-4-2 from top to bottom at intervals, the intercepting type water outlets A-4-2 comprise a water outlet connector A-4-2b communicated with the main flow pipe, a sheet-shaped water receiving protrusion is formed by extending the lower side edge position of the joint of the water outlet connector and the main flow pipe obliquely upwards from the inner cavity of the main flow pipe, a intercepting groove A-4-2a is formed by surrounding the edge of the water receiving protrusion and the inner cavity of the main flow pipe, and the outer end of the water outlet connector is fixedly connected with the tributary pipe.

Therefore, each irrigation is timed and quantitative irrigation, and the problems that irrigation is sufficient at a position close to a water source and irrigation is insufficient at the tail end of a pipe network due to long-time small-flow irrigation are solved. The regular quantitative irrigation has the characteristics of large water volume and short time, and if the regular irrigation pipe network is arranged, the equal irrigation of branch pipes with different heights on the same dry pipe cannot be realized. Therefore, the interception type water outlet structure is arranged in the application. When the water is quantitatively supplied in the dry flow pipe each time, the quantitatively supplied water flows downwards from the dry flow pipe, and each branch pipe actively intercepts the water by the intercepting groove to smoothly and rapidly introduce the water into each branch pipe, so that the water supply effect of each branch pipe is ensured. Meanwhile, the structure can ensure that the water quantity of each branch flow pipe on different heights is balanced by adjusting the size of the intercepting groove, and a balanced irrigation effect is provided.

Wherein, the upward inclination angle of the water receiving protrusion is about 45 degrees.

Therefore, the water retention device can ensure better water retention effect and has better structural strength, and the water retention device is prevented from being quickly damaged due to flushing by water flow.

Wherein, the interception type water outlet A-4-2 is arranged on the dry flow pipe at intervals from top to bottom and left to right.

Thus, the uniformity of the trapped water quantity of each branch pipe is improved.

The end part of the water inlet end of the tributary pipe is bent upwards or inclined and then connected to the water outlet joint.

Thus, the intercepted irrigation water is more conveniently led into each branch flow pipe by each intercepting water outlet.

Wherein the water inlet end of the branch pipe is bent or inclined upwards to a height of 50cm. Irrigation water can be better introduced into the branch pipes.

In this embodiment, the interception area of the interception groove of each interception type water outlet gradually increases from top to bottom along the dry flow pipe.

Therefore, the branch pipes can cut off water simultaneously under the condition of timing and quantitative irrigation. The water flow intercepted by each branch pipe is equal in the same irrigation water flow time of the main pipe. And the irrigation water in each branch flow pipe flows in approximately simultaneously, so that the uniformity of the irrigation of the whole irrigation pipe network can be better improved.

As another implementation mode, the whole edge of the water receiving bulge in each cut-off type water outlet is semi-elliptical, and the diameter of the short side is the same as the inner diameter of the dry flow pipe, so that the cut-off groove occupies one half of the cross-sectional area of the dry flow pipe.

By adopting the structure, a pair of branch pipes which are opposite to each other at the left and right sides in the middle and upper part of the main flow pipe can intercept irrigation water, and overflow from the interception type water outlet to flow downwards after the irrigation water is filled. So that the branch pipes with different heights are filled with water one by one from top to bottom. This has the advantage of enabling the amount of water required for each irrigation to be calculated and controlled more conveniently and accurately. The defect is that the dry flow pipes above are fully filled with water, so that the watering is always longer, the watering uniformity can be influenced, and the watering uniformity can be improved by adjusting the interval between the adjacent dry flow pipes in a mode of gradually reducing from top to bottom.

In this embodiment, the diameter of the main flow pipe is about 10cm, and the diameters of the outlet joint and the branch flow pipe are about 5cm. Better ensures the drainage and irrigation effect.

Wherein, be provided with the water guide layer of one deck strong capillary action in the plant substrate, the branch flow pipe buries in water guide layer position.

Thus, the watering water which is favorable for the seepage of the seepage holes of the branch pipes can slowly permeate to the whole side slope through the water guide layer to realize watering.

In this embodiment, the water-guiding layer is obtained by using a geotechnical blanket, and the tributary pipe is wrapped in the geotechnical blanket.

Therefore, the geotechnical blanket has excellent capillary effect, uniform water distribution can be better realized, and meanwhile, the branch pipes are wrapped in the geotechnical blanket to have good protection effect, so that insects, sediment and the like in soil are prevented from entering and damaging the branch pipes.

Wherein, an exhaust pipe A-4-4 which extends upwards out of the plant-growing substrate and is communicated with the atmosphere is arranged at the tail end of the branch flow pipe A-4-3.

Therefore, the air can be quickly exhausted through the exhaust pipe, the intercepted irrigation water can be more smoothly introduced into the inlet end of the branch pipe, the whole pipeline is filled with the irrigation water entering the branch pipe, and then the irrigation is realized by slowly water seepage through the water seepage holes. The defect that the watering effect is good at one end close to the dry flow pipe and poor at one end far away from the dry flow pipe is avoided. Better ensures the uniformity of irrigation.

Wherein the upper end of the exhaust pipe is bent downwards.

Can better avoid the blockage caused by the entry of soil or sundries into the exhaust pipe.

Wherein, the upper end of the exhaust pipe is higher than the corresponding closure type water outlet of the branch pipe. The waste of pouring water rushing out of the exhaust pipe can be better avoided, and the height of the exhaust pipe can be about 1 meter during implementation. When in use, the diameter of the exhaust pipe can be 1cm, so that the exhaust requirement can be met, and sundries can be better prevented from entering.

In the implementation, a water seepage hole A-4-3a is formed on the wall of the lower edge of the tributary pipe A-4-3 at intervals of 15cm, so that the slope in the whole tributary pipe can be uniformly irrigated.

In this embodiment, referring to fig. 6 to 11, the anchoring system B includes a plurality of reinforcement belts B-6 transversely disposed along the side slope, a space for stacking the plant-growing substrates is formed above the reinforcement belts, two sides of the reinforcement belts are fixed on anchor cables B-5 vertically disposed along the side slope, and the upper ends of the anchor cables are fixed on anchor piles B-1 at the top of the side slope.

In this way, the transversely arranged reinforcement net bears the gravity of the plant growth substrate on the slope, and the gravity is transferred to the anchor pile at the top of the slope through the anchor rope. The anchor pile is constructed at the top of the slope, is more convenient, simple and safe, can be constructed deeper to bear larger pulling force, is simultaneously more difficult to drop anchors due to the fact that the vertical arrangement of the top anchor pile is pulled downwards obliquely compared with the mode that the vertical type anchor pile is arranged on the slope, can enable the anchor rope to generate pressure in the slope so as to maintain stability of the rock mass of the slope, and is more beneficial to maintaining structural stability of the slope without deep drilling of anchor holes in the slope. Therefore, the fixing of the plant-growing base material on the side slope can be realized more conveniently, rapidly, efficiently and reliably, and the reliability of ecological restoration is improved.

The anchor cables are arranged in groups, each group is provided with two anchor cables, the two anchor cables are arranged at intervals along a plane perpendicular to the slope, a plurality of reinforcement belt nets are arranged between every two adjacent groups of anchor cables at intervals along the height direction of the slope, and the inner ends and the outer ends of the two sides of the reinforcement belt nets are respectively fixed on the two anchor cables of each group.

The two anchor cables in each group can be more convenient for installation and bearing of the reinforcement belt net, the anchor cables and the reinforcement belt net divide the slope into a plurality of corresponding grid spaces, so that an effective three-dimensional flexible force transmission structure is formed on the slope, the plant-growing materials stacked in each space bear gravity by the reinforcement belt net and act on the double-layer anchor cables on the two sides, and then are transmitted to anchor piles on the top of the slope through the double-layer anchor cables, so that the pressure of the plant-growing base material of the upper grid space unit to the plant-growing base material of the lower grid space unit is small and cannot be influenced by the height of the slope, the height of the plant-growing base material of the slope is not limited by the height of the slope, and the fixation of the plant-growing materials can be better realized.

The anchor cable is preferably a high strength cable to better ensure strength.

The rib band net consists of a rib band B-6-1 and positioning steel bars B-6-2 at two ends, the rib band net is horizontally arranged on a slope, and the positioning steel bars B-6-2 at two ends of the rib band net are connected with double-layer anchor cables B-5 at two sides through anchor cable buckles B-5-1.

Therefore, the installation, connection and fixation of the reinforcement belt net can be facilitated, the fixation reliability between the reinforcement belt net and the anchor cable can be better ensured, and the reinforcement belt B-6-1 is prevented from being separated from the anchor cable under the action of the gravity of the plant growth material.

In the embodiment, the length of the rib band net B-6 is about 2m, the width of the rib band net B-6 is about 23cm, and the vertical interval of the rib band net B-6 on the slope surface is about 1.5 m. Therefore, the gravity of the plant growth material in the grid unit where each rib belt net is located is moderate, and the stability and reliability of integral fixation are ensured.

In this embodiment, in each set of anchor cables, the inner anchor cable is spaced a distance from the bottom of the slope.

Therefore, the innermost layer in the plant-growing substrate is the foreign soil layer, so that the structure can ensure the retaining and fixing effects of the reinforcement belt net on the plant-growing substrate, and meanwhile, a section of interval distance is reserved between the reinforcement belt net and the bottom of the slope, so that the foreign soil layer at the bottom of the slope, where the plant-growing substrate is piled up, can be connected into a piece, and the root system of plant growth can better grasp the rock surface of the slope to extend and grow into a piece after entering the foreign soil layer. And further, after plants grow out, the structural stability of the whole slope greening system can be better improved by means of plant roots. The distance is preferably 2cm, so that the above effect can be optimized.

Wherein, the edge position of the slope top corresponding to each group of anchor cables is also provided with a guide pier B-2, the guide pier is internally provided with a guide limiting hole B-2-1 in a penetrating manner along the front-rear direction, and the upper end of the anchor cable passes through the guide limiting hole and is then fixed on the anchor pile.

Like this, the anchor rope changes backward and links to each other with the anchor stake through the direction of direction mound, and the direction mound can be with each group anchor rope according to the design arrangement in the different positions on slope top, and better bearing power transmission, also can decompose partial anchor rope pulling force and offset, has improved whole anchoring system's stability and reliability better. The guide piers are arranged at intervals of about 2m and are consistent with the intervals of two adjacent groups of anchor cables during implementation.

The guide pier is a reinforced concrete pier and is embedded in the bedrock at the top of the slope, steel pipes are buried at the top and the middle lower part of the guide pier along the front-back direction respectively, and the inner holes of the steel pipes form guide limiting holes B-2-1 of the guide pier.

Thus, the construction setting of the guide pier is facilitated. During implementation, a steel pipe with the inner diameter about 1.1 times of the diameter of the designed anchor cable is preferably adopted, so that the anchor cable can pass through conveniently.

The anchor pile B-1 is a section steel concrete pile, the pile body of the anchor pile is embedded in a rock stratum with a stable slope top, the pile top and the middle lower part (preferably about 20cm away from the ground) of the anchor pile are respectively provided with anchor rope holes B-1-2 which are penetrated front and back and incline, and the anchor rope holes B-1-2 are internally provided with anchor tools B-1-1 and are used for fixing anchor ropes.

Therefore, the structural strength of the anchor pile can be better ensured, the bearing effect on the anchor rope is ensured, and the gravity load of the slope plant-growing base material transmitted by the anchor rope is born.

And each group of anchor cables are also vertically provided with a row of positioning rods B-3 at intervals on the slope surface where the anchor cables are correspondingly positioned, the lower ends of the positioning rods are fixed on the slope surface, the top and the middle parts of the positioning rods are provided with positioning holes B-3-1 in a penetrating manner along the direction of the anchor cables, and the anchor cables can pass through the positioning holes in a sliding manner.

Thus, because the pulling force of the anchor cable is borne by the anchor pile, the positioning rod basically does not bear the gravity of the plant-growing base material, and the positioning rod mainly keeps the anchor cable to be arranged according to the required position and interval. Therefore, the lower end of the positioning rod is only required to be fixed to the slope surface shallowly, and a deep anchoring hole is not required to be drilled on the slope surface to damage the slope surface structure. Therefore, the construction is convenient, and the overall stability of the system can be better improved.

In implementation, the better size parameter selection is that the spacing between each row of positioning rods is about 2-3m, the length of each positioning rod outside the slope rock wall is about 30cm, the distance between the middle lower positioning hole of each positioning rod and the slope is about 2cm, and the inner diameter of each positioning hole is about 1.1 times of the diameter of the designed anchor cable. The positioning effect can be optimized.

The anchor rope is characterized in that an anchor rod B-4 is further arranged at the bottom of each group of anchor rope below the slope, the lower ends of the anchor rods are anchored in rock strata at the bottom of the slope obliquely downwards, the bottoms of the anchor ropes are fixedly connected to the anchor rods through anchor rope buckles, and the anchor ropes are in a prestress state for applying pressure to the locating rods in the slope.

Like this, the setting of stock for both ends are strained about the anchor rope and are the prestressing force state of inwards exerting pressure, make the locating lever by inwards compressing tightly like this, be difficult for droing more, can improve the stability and the reliability of whole anchoring system better.

Thus, after the anchoring system is arranged, each group of vertical anchor cables B-5 and horizontal reinforcement belt net B-6 form an effective three-dimensional flexible force transmission structure on the high-steep slope, when the high-steep slope is paved with plant-growing base materials, the gravity of all plant-growing base materials is transmitted to the vertical double-layer anchor cables B-5 through the reinforcement belt net B-6, and then transmitted to anchor piles B-1 on the slope top through the double-layer anchor cables B-5, so that a roof-anchored plant-growing base material fixing system (namely an anchoring system) is formed. The roof anchor type plant substrate fixing system divides the slope plant substrate into a plurality of units with the thickness of 2m multiplied by 1.5m, the units are mutually independent, and the gravity of each unit is transmitted to an anchor pile at the top of the slope by the tension of an anchor rope so that the pressure of the plant substrate of the upper unit to the plant substrate of the lower unit is small and cannot be influenced by the slope height, the height of the slope plant substrate is not limited by the height of the slope, the thickness of the plant substrate can be kept unchanged along the whole slope height, meanwhile, the damage of a single unit only has a small influence on one unit at the lower part adjacent to the slope plant substrate, thus the integral collapse disaster of the plant substrate cannot occur, in addition, compared with the slope surface stress anchor rod of the three-dimensional plant spraying technology, the roof anchor type plant substrate fixing system is not influenced by the downward gravity of the plant substrate, the distance between the fixed points is large, the requirement of the embedding depth is low, the high-dangerous work load of the slope surface of high abrupt rock can be greatly reduced, the construction difficulty and the safety are effectively improved, and the slope surface B-5 of the double-layer slope can be influenced by the fact that the anchor rope is not influenced by the vertical stress of one positioning rod, but the slope surface is not influenced by the opposite stability.

In this embodiment, referring to fig. 12-15, the plant-growing substrate C includes a soil layer C-1 with a holding area Water Guest laid on the bottom surface of the slope, a plant-growing layer C-3 disposed above the soil layer with a holding area Water Guest, plant seeds contained in the plant-growing layer, a water-retaining layer C-4 disposed above the plant-growing layer, and at least one layer of gravel material disposed in the water-retaining layer.

Therefore, the soil layer C-1 holding Water Guest is connected with the rocky slope, has good water absorption and strong water holding capacity, and is mainly used for storing water irrigated by the rain collecting irrigation system A on the rocky slope to provide long-term stable water for vegetation growth of the rocky slope, and after plant seeds in the vegetation layer sprout, root systems are rolled into the soil layer holding Water Guest to absorb the water and nutrient growth. Meanwhile, the water-retaining layer mainly formed by the gravel material is arranged, so that the advantage of weak capillary water action of the gravel material can be utilized, water evaporation can be better avoided, and water-retaining maintenance is realized. Is more beneficial to the growth and repair of the vegetation on the side slope. In the implementation, the soil layer thickness of Water Guest is preferably about 10cm, so that the effect can be better ensured.

In this embodiment, the Water Guest soil layer is made by three-dimensional net spraying. The construction method has the characteristics of simplicity, convenience and rapidness in construction, and is more suitable for construction water-relative abundant areas.

Alternatively, the Water Guest soil layer is obtained by stacking a soil bag. Has the characteristic of low cost, and is more suitable for areas with relatively lack of construction water.

In the embodiment, a water-guiding layer C-2 with strong capillary action is also arranged between the Water Guest soil layer C-1 and the plant-growing layer C-3.

Therefore, the water guide layer can uniformly distribute the water for irrigation to the Water Guest soil layer of the whole slope surface, and the irrigation effect is better ensured. Meanwhile, the water guide layer can effectively increase the distance between the upper and lower adjacent pipelines of the horizontal branch pipe for irrigation, reduce the consumption of the branch pipe and reduce the engineering cost.

Wherein the water guide layer is obtained by laying geotechnical blanket. Has the advantages of low cost, easy implementation, good water guide effect, etc.

Wherein, the geotechnical blanket is wrapped with a branch flow pipe for irrigation. The water poured out from the tributary pipe directly passes through the geotechnical blanket water guide layer, so that uniform water distribution on a slope surface is realized, and the uniformity of pouring is better improved. Meanwhile, the protection of the branch flow pipe is facilitated, and the service life of the branch flow pipe is prolonged.

In practice, the thickness of the geotechnical blanket is preferably about 1 cm. If the water distribution and water guide effect is too thin, the range of water guide and plant root growth are easily affected if the water distribution and water guide effect is too thick.

In practice, the plant growth layer can be formed by mixing plant seeds with plant growth materials, stirring and pressing, and the thickness is preferably about 8 cm. The plant growth material may be a mixture of crushed straw, organic fertilizer, plant growth regulator and soil, and may be specifically a prior formulation technology, which is not described in detail herein.

In this embodiment, the water retaining layer C-4 is composed of two layers of straw mats C-4-1 and a layer of pebble material C-4-2 sandwiched between the two layers of straw mats.

Therefore, the straw blanket at the inner layer can be used as transition buffer between the gravel material and the plant growth layer, which is beneficial to breaking out the water retention layer for plant growth, the straw blanket at the outer layer can prevent the gravel from sliding off before being fixed by vegetation growth, and meanwhile, the straw blanket can introduce organisms such as external insect birds and the like to stay or stay, so that part of the original plant seeds are brought into growth, and the ecological restoration is beneficial. Meanwhile, the straw blanket can be used as a plant nutrition source after being decayed for a period of time, so that the whole straw blanket is more beneficial to plant growth and ecological restoration of the side slope.

In this embodiment, the layer of pebble material is composed of a pebble-three-dimensional polymer web, which is specifically obtained by filling a three-dimensional polymer web with pebbles having a particle diameter of 0.5 to 2cm.

Thus, the construction is more convenient. In practice, the thickness of the two layers of straw mats is preferably about 2cm, the thickness of the corner gravel material layer formed by the middle corner gravel-three-dimensional high polymer fiber net is preferably about 4cm, and the pore diameter of the fiber net is preferably 1-2.5cm, so that the effect can be better ensured.

In this embodiment, the vegetation layer C-3 is laid by prefabricated vegetation layer blocks C-3', and the water retention layer C-4 is laid by prefabricated water retention layer blocks C-4'.

Therefore, the plant-growing layer and the water-retaining layer are produced in a factory standardized mode to form a building block structure, and the building block structure is constructed by simply piling and fixing, so that the construction efficiency is greatly improved. The block structure preferably employs rectangular blocks of length x width=74 cm x 49 cm. Specifically, the plant-growing layer building block can be formed by adding plant seeds and a certain proportion of water into plant materials (including clay, organic fertilizer, crushed straw and plant growth regulator), stirring and mixing uniformly, then placing the plant materials into a mould, applying certain pressure for pressing, and forming the plant-growing layer building block by means of the cohesive force of the clay and the reinforcement effect of the crushed straw. The water-retaining layer building block can be formed by paving two layers of woven straw carpets meeting the building block size requirement and the middle gravel-three-dimensional high polymer fiber net in sequence, and binding wires into a whole.

In this embodiment, referring to fig. 13 and 14, a net type pin C-5 is further provided, and the net type pin is composed of a pin C-5-2 and a net C-5-1 connected to each pin from the tail of the pin, and the net type pin passes through the plant growing layer block and the water guiding layer from the outer side of the water holding layer block and is inserted and fixed into the soil layer holding Water Guest.

Thus, the plant-growing substrate structure with stable and reliable structure is more beneficial to high-efficiency and rapid construction.

In particular, the mesh pin C-5 is preferably made of a high corrosion resistant polymer material. During construction, the water-retaining layer building block C-4 'and the plant-growing layer building block C-3' can be fixed together through the net-shaped pin C-5 in advance to form a side slope restoration construction prefabricated member (see figure 15) obtained by combining the plant-growing layer and the water-retaining layer. The length of the pin is preferably about 25cm, which is 9cm longer than the combined thickness of the plant growing layer C-3 and the water retaining layer C-4, and the combined layer with the net type pin C-5 is manually fixed on the soil layer C-1 of the holding Water Guest through the pin C-5-2 after the plant growing layer C-3 and the water retaining layer C-4 are transported to the site, so that the plant growing layer C-3 and the water retaining layer C-4 are fixed on the slope and a multi-layer water retaining value biological substrate with strong water retaining property is formed. The method has the characteristics of very convenient, fast and efficient construction.

The scheme of the application has the advantages that the ① roof anchor type plant substrate fixing structure can realize that the laying height of the plant substrate of the steep rocky side slope is not limited by the slope gradient and the height, the laying thickness can be kept unchanged along the whole slope height, the ② roof anchor type plant substrate fixing structure can effectively support the slope of the steep rocky side slope, the slope stability is improved, the ③ roof anchor type plant substrate fixing structure can unitarily fix the plant substrate, the integral collapse disaster of the plant substrate can not occur, the slope positioning rod is less, the engineering quantity and the engineering cost are effectively reduced, the ④ rainwater collecting irrigation system can realize the collection of slope roof rainfall, the automatic control of irrigation water quantity, the natural rainfall is effectively utilized, the post-stage cultivation cost is effectively reduced, the ⑤ multi-layer type water-retaining plant substrate can effectively retain water, the slope can realize the long-term stable water supply, the ⑥ multi-layer water-retaining plant substrate can realize the standardized production and construction, the assembly process is simple, the construction speed is fast, the safety and the economy is economical.

Claims (4)

1. An automatic irrigation control device, comprising a water control chamber located below a water storage chamber, a vertically arranged water control tank bracket in the water control chamber, a water control tank hingedly arranged on the upper end of the water control tank bracket, a bottom portion of the water control tank having a greater specific gravity than the rest of the tank and a hinge point located at the middle rear position, so that when the water control tank is empty, the center of gravity is located at the rear position of the hinge point and when the water is filled to a certain proportion, the center of gravity can move forward beyond the hinge point position, when the water control tank is empty, the box opening is upward and arranged directly opposite to the water outlet of the water storage chamber, and when the box opening of the water control tank is tilted downward, the box opening is directly opposite to the main stream pipe inlet of the irrigation pipe network; A water pipe is arranged in the water storage chamber, and the lower end of the water pipe passes downward through the water storage chamber in a sealed manner and extends to the top of the water control tank opening; The invention is characterized in that the water pipe is a hose and its length exceeds the height of the inner cavity of the water storage chamber. The upper end of the water pipe is connected with a flow control float floating on the water surface. A limited flow hole is horizontally penetrated on the part of the flow control float immersed under the water surface. A vent hole is vertically penetrated on the flow control float. The vent hole and the limited flow hole are cross-connected. The lower end of the vent hole is sealed and connected with the upper end of the water pipe. The diameter of the vent hole is more than 4 times the diameter of the flow limiting hole; the lower part of the flow controlling float is a solid float entity, the upper part is a hollow float cavity, the limiting hole is located on the float entity, and the vent hole and the float cavity are isolated and sealed from each other. 2. The automatic irrigation control device as described in claim 1 is characterized in that the plane where the water control tank opening is located is inclined, and when the tank is empty, the plane where the tank opening is located is facing upward. 3. The automatic irrigation control device as described in claim 2 is characterized in that the water control box includes an external adjustment frame and a box body installed in the adjustment frame, the adjustment frame is overall groove-shaped and is hinged to the upper end of the water control tank bracket, and adjustment fixing screws are horizontally penetrated on both sides of the adjustment frame. The adjustment fixing bolts are rotatably screwed on the adjustment frame and the inner ends abut against the box body to fix the box body, and a counterweight block is inserted at the bottom of the groove of the adjustment frame. 4. The automatic irrigation control device as described in claim 1 is characterized in that a counterweight material inlet communicating with the float cavity is also provided at the upper end of the flow control float.