CN113653149B - Rainwater quick discharge system - Google Patents

Abstract

The utility model relates to a drainage field specifically discloses a rainwater quick discharge system of rainwater that can discharge rainwater fast, including drain bar, drainage network and the permeable stratum of cover on drainage network, drainage network includes the unit area at least: the siphon converter devices are distributed on the periphery of the unit area and connected through the drainage grooves, and discharge water outside the unit area; the variable flow drainage devices are distributed on nodes of the drainage network in the unit area, are connected with one or more siphon variable flow devices through drainage grooves, and guide water at different positions in the unit area to the suction variable flow devices in a directional manner; the drainage plates are distributed among the drainage grooves, receive water permeating from the permeable layer in the unit area and guide the water into the drainage grooves. By reasonably setting the relation among the drainage plate, the drainage groove, the variable flow drainage device and the siphon variable flow device, the drainage efficiency is improved step by step, and an efficient drainage system is formed.

Description

Rainwater quick discharge system

Technical Field

This patent relates to the drainage field, and more specifically relates to a quick discharge system of rainwater.

Background

The sponge city refers to a city which can be like a sponge and has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like. In order to implement a sponge city, a roof drainage system is widely used on a roof, particularly a planted roof, and can collect rainwater, irrigation water and the like falling on the roof and then discharge the rainwater to the underground or store the rainwater in an underground reservoir through a pipeline. The system mainly comprises drain plates laid on a roof, a drain groove and a drain groove joint, wherein the drain groove is connected into a net through the drain groove joint and is interwoven between the tiled drain plates. After the roof drainage system is laid, a geotextile is usually covered above the roof drainage system, and soil layers such as green soil and the like are backfilled. When rainfall or irrigation, water in soil passes through the geotextile and enters the drainage plate, then flows into the drainage groove through the drainage ports on two sides of the drainage groove, and finally enters the reservoir from the drainage groove. This system mainly utilizes water drainage tank to collect too much rainwater, irrigation water to the cistern in, and the water of utilizing to collect again in turn irrigates the roofing afforestation, when realizing the plumbing, satisfies energy-concerving and environment-protective requirement.

The drainage channels are usually arranged on the roof in a checkerboard mode, and the drainage channel joints such as a tee joint and a cross joint are used for connecting the multi-path straight drainage channels at the transverse and longitudinal intersection positions of the drainage channels. In the prior art, the internal channels of the drainage channel joint are communicated in a crisscross manner, the structure is simple, and the drainage channel joint only plays a role in communication. After water flows in the straight drainage troughs in different directions are fast converged into the drainage trough joint, mutual impact is easily generated in the center, and turbulent flow is formed. The kinetic energy of the water flow is greatly reduced, and the flow velocity of the water flow flowing out of the water drainage tank connector is reduced, so that the water drainage efficiency of the siphon rainwater drainage system is influenced.

Disclosure of Invention

This patent aims at overcoming above-mentioned prior art not enough, provides the quick discharge system of rainwater that can discharge the rainwater fast.

The technical scheme that this patent adopted is: a rapid rainwater drainage system comprising a drainage plate, a drainage network and a permeable layer overlying the drainage network, the drainage network comprising at least a cellular region: the siphon flow conversion devices are distributed on the periphery of the unit area and connected through the drainage grooves, and discharge water outside the unit area; the variable flow drainage devices are distributed on the nodes of the drainage network in the unit area, are connected with one or more siphon variable flow devices through drainage grooves, and guide water at different positions in the unit area to the suction variable flow devices in a directional manner; the drainage plates are distributed among the drainage grooves, receive water permeating from the permeable layer in the unit area and guide the water into the drainage grooves. The drainage tank comprises a tank body, a bottom plate, a water outlet and a connecting structure, wherein an opening of the tank body faces downwards, the bottom plate is horizontally arranged on two sides of the opening of the tank body, the water outlet is arranged at the bottom of the side face of the tank body, the connecting structure is arranged at two longitudinal ends of the tank body, the drainage tank further comprises protruding parts, the protruding parts are arranged on the surface of the tank body at intervals, and the protruding parts are arched.

This patent quick discharge system of rainwater, generally set up under the soil filling layer, on the waterproof layer, including drain bar, drainage network and the permeable bed of cover on drainage network, the permeable bed keeps apart drainage network and soil filling layer, the rainwater above the soil filling layer permeates the soil filling layer under the action of gravity, filtration to drainage network through the permeable bed, the rainwater is accepted and the water conservancy diversion by the drain bar, get into drainage network from the drainage tank side opening, discharge after current conversion drainage device and siphon deflector two-stage assemble. The improvement is characterized in that the drainage network should comprise the above-mentioned cell areas. The unit areas are core structures forming a drainage network, but the patent does not exclude the forms that a plurality of unit areas are arranged in the drainage network, or the unit areas are connected with a common drainage structure, or a plurality of unit areas are overlapped, and the like, namely, a plurality of siphon flow conversion devices are arranged around a plurality of flow conversion drainage devices in the drainage network, and the structures connected with the flow conversion drainage devices through drainage grooves are all in the scope requested by the patent.

Although also set up drainage network under the filling layer among the traditional technique, nevertheless mainly rely on the slope to assemble the rainwater to drainage system and discharge outward, have the drainage slowly, and inefficiency waits defect in case meet the great situation of rainfall, a large amount of rainwater that are detained in the filling layer can't be got rid of fast, and this will bring great pressure for lower floor waterproof and overall structure stability. This patent is through optimizing the structure of drainage network, the flow of the drive rainwater that current conversion drainage device can orient fast, and siphon current conversion device can bring extra drainage power for whole drainage network, can drive the quick directional discharge of rainwater. Because need not to adopt the slope drainage, through the negative pressure that the siphon brought, even also can drive the flow of rainwater on the plane, greatly reduced the construction degree of difficulty. The variable-flow drainage device in the unit area can guide the multi-channel converged water flow to the four-way siphon variable-flow device in a directional mode, and the siphon variable-flow device has the siphon negative pressure effect, so that drainage power can be brought to the whole unit area, and rainwater can be quickly drained. The rainwater rapid drainage system of the patent can comprise one or more unit areas according to specific application areas. The unit area can be connected with a common drainage pipeline, and the common drainage pipeline can collect rainwater to the variable flow drainage device or the siphon variable flow device by using a siphon negative pressure or gradient drainage mode. The rapid rainwater drainage system can be an integrated rapid rainwater drainage system with the unit areas as the center and the common drainage pipelines or the network as the periphery, or an integrated rapid rainwater drainage system with a plurality of unit areas overlapped and staggered, or an integrated rapid rainwater drainage system with the two integrated rapid rainwater drainage systems.

In order to improve the drainage efficiency, the distribution density of the siphon deflectors in a certain area is required in consideration of the limitation of the drainage capacity of a single siphon deflector. Through the experiment verification of establishing various units of the four-way siphon converter devices with different quantities for years by the inventor on various existing open-air fields, such as roofs, green belts, grasslands or drainage brick floors, and the like, and aiming at rainfall environments of different regions at home and abroad, such as arid regions, general rainfall regions or rainy regions, the experiments show that 1/300 square meter to 800 square meters are the preferred density for realizing quick drainage. The density is higher than 1/300 square meters, the construction cost is high, and the siphon converter devices cannot achieve overflow flow in most environments, so that the hydrodynamic force of siphon negative pressure cannot be realized, and the drainage effect is reduced on the contrary. The density is lower than 1 square meter per 800 square meters, and due to the limited drainage capacity of the standardized siphon converter, rainwater cannot be drained in time under the condition of large rainfall capacity, so that the aim of quick drainage cannot be fulfilled. According to the rainfall conditions of different areas in China, the distribution density of the siphon converter device is preferably 1 square meter per 520 to 680 square meters. The distribution density is not only based on rainfall and drainage speed, but also integrates factors in aspects of standard requirements, size, material cost, service life and the like of all components of the drainage system, is an integrated empirical parameter, is suitable for meeting the requirements of all aspects of a rainwater rapid drainage system with the density of more than 70 percent, and has low construction cost. But does not exclude the requirement of other special regions on the density to exceed the range, and the purpose of the patent is to provide a density requirement with wide applicability, which is beneficial to the standardization and popularization of products and improves the market competitiveness.

The regional environment that quick discharge system of rainwater was suitable for is often changeable, mainly is the difference of regional shape, and different shapes need adopt different drainage network layouts to realize that drainage network can cover whole region. The straight drainage grooves and the rectangular network structure formed by the straight drainage grooves can realize the drainage of rainwater most efficiently due to the minimum resistance. However, in order to cover the whole area, the whole area cannot be covered by the rectangular network structure, so that in the area which cannot be covered by the rectangle, the network structure with other shapes can be adopted, in order to improve the drainage efficiency, straight-line type straight-through drainage grooves are adopted as many as possible, and flexible drainage grooves are adopted in partial areas for transitional connection. From this, the water drainage tank is including directly leading water drainage tank and flexible water drainage tank, and in order to realize the rectangle network structure, the siphon deflector and the three-way or the four-way junction structure of unsteady flow drainage device for the right angle UNICOM of this patent, alright form rectangle grid structure with directly leading water drainage tank like this. Similarly, in the area where the rectangular network structure is not suitable, the flexible drainage grooves are adopted for transition connection or are directly adopted to form a curved drainage network structure. In order to improve the drainage efficiency of the siphon converter devices and prevent the condition that some siphon converter device(s) overflow and some siphon converter device(s) lack water due to uneven distribution of water quantity in the area, the drainage channel is directly connected with all siphon converter devices in the unit area. Therefore, direct intercommunication of all siphon flow conversion devices in the unit area is realized, the water discharge of each siphon flow conversion device can be balanced, and the water discharge effect of the whole rainwater rapid discharge system is exerted to the greatest extent. Besides the main structure, the whole rainwater quick drainage system also needs a common drainage channel connecting piece to realize the common connection of the drainage channels, and can be in a traditional various tee joints or four-way joints or lengthened structures.

The drainage power of the siphon converter mainly comes from the external air pressure, the whole rainwater rapid drainage system is buried under the soil filling layer and the permeable layer, the external air pressure is weakened after penetrating through the soil filling layer and the permeable layer, particularly the soil filling layer and the permeable layer which are soaked by rainwater, in order to ensure the pressure of siphon negative pressure, a plurality of breathable observation pipes are arranged in the middle of the drainage tank, the breathable observation pipes are communicated with the drainage tank and vertically upwards penetrate through the permeable layer and the soil filling layer to the ground, so that the air pressure can directly act on rainwater flowing in the drainage tank, and stronger drainage pressure is kept. In order to ensure the pressure stability of a rainwater rapid discharge system, enough air-permeable observation pipes are needed to provide aerodynamic force, and the distribution density of the air-permeable observation pipes is set to be 1 in a range from 2000 square meters to 8000 square meters. Preferably, 3-5 square meters are arranged for 2 thousand square meters, sufficient aerodynamic force cannot be provided when the density is too low, the construction cost is too high when the density is too high, the effective aerodynamic force supply can be achieved only by reasonably distributing the air-permeable observation pipes, otherwise, the siphon effect is influenced, and the design difficulty is higher when the density is higher. The distribution density is not only based on rainfall and drainage speed, but also integrates factors in aspects of standard requirements, size, material cost, service life and the like of all components of the drainage system, and is an integrated empirical parameter.

The conventional rainwater rapid drainage system has an additional main function of providing reclaimed water for greening irrigation in addition to rapid drainage, and therefore, the patent also comprises a greening irrigation system communicated with a drainage network, wherein the drainage network is connected with the greening irrigation system through a rainwater observation well/reservoir. The rainwater observation well is mainly used for observing whether the siphoning effect of the rainwater rapid discharge system normally operates or not, has a certain ventilation function and also serves as a reclaimed water storage device, and reclaimed rainwater is temporarily stored in the well. In order to prevent the stored rainwater from bringing reverse hydraulic pressure to the drainage network, affecting the drainage dynamics, the connection position of the drainage network is higher than the rainwater observation well/reservoir bottom. When the stored rainwater is higher than the connection position of the drainage network, the greening irrigation system can drain water in time to reduce the liquid level, so that the connection position of the greening irrigation system is not higher than the connection position of the drainage network, and the connection position is high or low, which means that the greening irrigation system can discharge water higher than the connection position of the drainage network.

This patent is passed through four-way siphon deflector and is directly discharged the rainwater into rainwater observation well/cistern, has higher drainage efficiency, can connect through a section nozzle stub certainly between the two. As mentioned above, in order to prevent the influence of the water storage pressure on the drainage negative pressure of the drainage network, the position of the rainwater inlet connected with the rainwater observation well by the four-way siphon flow-changing device is between 1/6 and 2/3 of the well depth/pool depth, the position lower than 1/6 of the well depth/pool depth influences the water storage effect, and the position higher than 2/3 of the well depth/pool depth easily forms the hydraulic pressure in the connected short pipes, which is also not beneficial to drainage. The drain pipe of the four-way siphon deflector needs to overflow to form negative pressure, so the pipe diameter of the rainwater inlet is not too large, the irrigation system needs to discharge redundant rainwater in the rainwater observation well/reservoir as soon as possible, the pipe diameter of the rainwater outlet is larger, and the pipe diameter ratio of the rainwater inlet to the rainwater outlet is preferably 0.2-0.7.

The rainwater observation well is used for recovering rainwater during rainfall to afforest and irrigate in the non-rainfall period, the irrigation system can adopt drip irrigation or spraying and other modes, and a rainwater lifting system is needed to be arranged to pump rainwater to the ground for irrigation as the position of a rainwater outlet is arranged underground. The rainwater hoisting system has the other function that when the liquid level in the rainwater observation well is too high and drainage pressure obstacle is brought to a drainage network during rainfall, rainwater stored in the well can be quickly drained, the water storage pressure is reduced, and the balance between the drainage efficiency of the rainwater quick drainage system and the water storage capacity of the rainwater observation well is controlled.

The utility model provides a direct drainage tank, the technical scheme that this patent was taken is, a direct drainage tank, including cell body, bottom plate, water inlet and connection structure, the opening of cell body is downward, and the bottom plate level sets up in the opening both sides of cell body, and the water inlet sets up in cell body side bottom, and connection structure sets up at the fore-and-aft both ends of cell body. The groove body is characterized by further comprising protruding parts, wherein the protruding parts are arranged on the surface of the groove body at intervals and are arch-shaped bulges.

Preferably, the protrusion and the groove are of an integral structure, the protrusion is formed by the surface of the groove protruding from the inside to the outside, and a non-protrusion part is arranged between two adjacent protrusions.

Compare and be provided with the strengthening rib on current water drainage tank's the cell body outer wall, the cell body surface cancellation strengthening rib of this patent, the cell body wholly can be drainage tank shapes such as n type, semicircle type or trapezoidal, and the bulge vertically has certain length along the cell body. The surfaces of the convex parts and the non-convex parts are smooth, and the whole groove body is free of outward sharp ribs, so that the geotextile is prevented from being cut. The bulge is an outward bulge on the surface of the groove body, so that the bulge is provided with a bulge space which bulges out of the inner cavity of the groove body. The bulge is an arch bulge, so that the intersection of the bulge and the non-bulge has a turning structure, the longitudinal section of the tank body is in a wave shape with a high height and a low height, the effect similar to a reinforcing rib is formed, the compression resistance and the bending resistance of the tank body are ensured, and the gravity action of rolling and impacting of vehicles and greening soil during the backfilling construction of the greening soil can be effectively resisted. Through bulge and the non-bulge that the interval set up, realized guaranteeing resistance to compression, the bending resistance of cell body outer wall simultaneously, can cancel the strengthening rib on the cell body outer wall again, solve geotechnological cloth and be cut open easily, and then lead to the water inlet by the problem of earth jam.

In addition, the bulge can be a single through drainage channel fitting and is of a split structure with the channel body. The bulge is a shell fitting with a smooth surface and is sleeved on the outer surface of a groove body of the existing drainage groove. After the installation, the height that the bulge is uplifted is higher than the strengthening rib on the cell body, and two longitudinal front and back sides of bulge are neat with the strengthening rib. The horizontal projection of the below of bulge covers the water inlet, forms the protection to the water inlet. The straight-through drainage channel with the protruding part is sleeved, the surface is not provided with outward ribs, and the problem that the geotextile is easily cut to cause the water inlet to be blocked by soil is solved. The convex part is positioned above the water inlet to protect the water inlet, thereby solving the problem that the deformed geotextile and soil block the water inlet.

Aiming at the flexible drainage channel, the technical scheme adopted by the patent is that the flexible drainage channel comprises a plurality of sections of drainage channel units, wherein two ends of each section of drainage channel unit are provided with connecting structures; the drainage tank units are connected with each other through a connecting structure and can rotate mutually; and a plurality of sections of drainage groove units are connected one by one in sequence to form the flexible drainage groove.

Aiming at the variable-flow drainage device, the technical scheme adopted by the patent is that the variable-flow drainage device comprises a first port, a second port, a third port, a fourth port and a first channel, wherein the first channel, the second channel and the fourth channel are used for being connected, the first channel, the second port and the fourth channel are corresponding to the ports, and the first channel, the second channel and the fourth channel are communicated at the intersection. The first channel to the third channel are in a curve shape trend, and the included angle between the first channel to the third channel and the fourth channel when the first channel to the third channel are converged at the junction is an acute angle; the first port to the fourth port are provided with connecting structures used for being connected with other drainage grooves.

Aiming at the siphon converter device, the technical scheme adopted by the patent is that the siphon converter device comprises a connector body and a water absorber arranged on the connector body; the joint body is provided with a converging cavity, the side wall of the joint body is provided with a joint water inlet communicated with the converging cavity, and the side wall or the bottom of the joint body is provided with a joint water outlet communicated with the converging cavity; the water absorber comprises a water absorbing cavity, a water absorbing pipe and a water absorbing cover; the water suction cavity is communicated with the confluence cavity and the atmosphere; the upper part of the water suction pipe is positioned in the water suction cavity and is intersected with the horizontal plane, and the lower part of the water suction pipe extends to the bottom of the confluence cavity and leads to the water outlet of the joint; the water absorbing cover is arranged in the water absorbing cavity, the opening of the water absorbing cover faces downwards and covers the upper part of the water absorbing pipe, a gap is reserved between the inner surface of the water absorbing cover and the outer surface of the water absorbing pipe, and the opening of the water absorbing cover is communicated with the water absorbing cavity.

The water absorber is additionally arranged on the basis of a traditional drainage tank joint and comprises a water absorbing pipe extending into a confluence cavity from the upper part of the confluence cavity and a water absorbing cover covering the water absorbing pipe and the upper part of the confluence cavity, a gap is reserved between the inner surface of the water absorbing cover and the outer surface of the water absorbing pipe, and an opening of the water absorbing cover is communicated with the confluence cavity; the lower part of the water suction pipe stands in the confluence cavity, plays a role of reducing turbulent flow to a certain extent, contributes to a part of height difference between an inlet and an outlet of the water suction pipe, and is favorable for achieving the water suction effect.

Compared with the prior art, the beneficial effect of this patent does:

in the unit area of this patent, through the relation between reasonable drain bar, water drainage tank, the drainage device of changeing and the siphon deflector of setting up, improve drainage efficiency step by step, form efficient drainage system. The seepage water hedging during convergence of the straight-through drainage grooves is reduced through the variable flow drainage device, and the seepage water in the straight-through drainage grooves is quickly conveyed to the periphery of a drainage network unit area; the seepage water collected to the periphery of the drainage network unit area is quickly discharged to a municipal pipe network or a greening irrigation system through the siphoning effect of the siphoning deflector.

The bulge and the non-bulge that this patent's straight-through water drainage tank set up through the interval have realized guaranteeing resistance to compression, the bending resistance of cell body outer wall simultaneously, can cancel the strengthening rib on the cell body outer wall again, solve the problem that geotechnological cloth is cut brokenly easily. The surface through the bulge forms the structure of similar canopy, forms the protection to the water inlet of lower part to solve the geotechnological cloth of deformation and blockked up the problem of water inlet, guaranteed that the infiltration hydroenergy of collecting in the drain bar converges directly into water drainage tank fast effectively, thereby makes the high efficiency of discharge system, normal work.

The flexible water drainage tank of this patent has realized the flexibility of water drainage tank self and the flexible connection between the water drainage tank through a plurality of sections water drainage tank units, reaches the water drainage tank and arranges, arrange with arbitrary shape and optional position, with the effect of arbitrary angle connection between the water drainage tank to satisfy the requirement that the water drainage tank is complete to cover building roof and quick construction. Through set up conduit in flexible water drainage tank inside, kept the water inlet of flexible water drainage tank on the one hand, on the other hand has solved the water conservancy diversion effect problem when the infiltration water flows through flexible water drainage tank inside. Through setting up water drainage tank switching unit, greatly richen flexible water drainage tank's connected mode further enlarges flexible water drainage tank's application range.

The variable flow drainage device of the patent designs the curve shape trend from the first channel to the third channel of the four-way drainage channel, so that the permeated water entering the channels are independent and do not influence each other. The permeated water from the first channel to the third channel is converged at the intersection through the spirally distributed angles instead of direct 90-degree hedging, so that the permeated water is favorable for forming a vortex, the speed of the permeated water is increased, and the problems that the cross drainage channel is easy to form hedging and turbulent flow of the permeated water are solved. Through the variable cross-section design from the first channel to the third channel, the flow speed of the permeated water is gradually accelerated in the first channel after the permeated water flows in through the first port, then the permeated water reaches the intersection to form a vortex, and finally the permeated water quickly flows out through the fourth channel, so that the drainage efficiency of the four-way drainage groove is further improved. The boss is arranged at the intersection, so that the permeating water flowing from the first channel to the third channel is guided to form a vortex more easily, and the flow speed of the permeating water after confluence is further accelerated.

The siphon converter of this patent adds the water aspirator on the inherent structure's that keeps traditional water drainage tank to connect the basis, has both guaranteed siphon converter's commonality, has solved again and has assembled rivers that come and form turbulent flow, kinetic energy loss, influence the problem of leading to water speed in siphon converter department. Further protect the suction pipe through structures such as guard shield, first baffle, play the water effect of local deceleration, whole acceleration simultaneously. The structure of the water absorber is further improved, for example, a water absorbing cylinder is additionally arranged, the number of water absorbing pipes is increased, and the water passing speed is further improved.

Drawings

Fig. 1 is a schematic plan view of the patent in example 1.

Fig. 2-1 is a schematic view of the field construction of example 2 of this patent.

Fig. 2-2 is a schematic top view of the structure in embodiment 2 of this patent.

Fig. 2-3 are schematic bottom views of the structure of example 2 of this patent.

Fig. 2-4 are side views of example 2 of this patent.

Fig. 2-5 are cross-sections of the non-bulging portion of patent example 2.

Fig. 2-6 are cross-sections of the projections of patent example 2.

Fig. 2 to 7 are schematic views of the snap structure in embodiment 2 of this patent.

Fig. 3-1 is a schematic structural diagram of embodiment 3 of this patent, applied to a rainwater rapid drainage system.

Fig. 3-2 is a schematic bottom view of embodiment 3 of this patent applied to a rainwater rapid drainage system.

Fig. 3 to 3 are structural views of a drain tank unit according to embodiment 3 of this patent.

Fig. 3 to 4 are another structural views of the drain tank unit of embodiment 3 of this patent.

Fig. 3 to 5 are schematic cross-sectional views illustrating a rainwater rapid discharge system according to embodiment 3 of this patent.

Fig. 3-6 are schematic structural views of a rainwater rapid drainage system according to embodiment 4 of this patent.

Fig. 3 to 7 are structural views of a drain tank unit according to embodiment 4 of this patent.

Fig. 3-8 are schematic cross-sectional views of the system for rapidly draining rainwater according to embodiment 4 of the present patent.

Fig. 3-9 are schematic structural views of the rainwater rapid draining system applied in embodiment 5 of this patent.

Fig. 3 to 10 are structural views of a drain tank unit of the present patent example 5.

Fig. 4-1 is a top view of the base of example 7 of this patent.

Fig. 4-2 is a perspective view of the base of example 7 of this patent.

Fig. 4-3 are right side views of the base of example 7 of this patent.

Fig. 4-4 are bottom views of the upper cover of example 7 of this patent.

Fig. 4-5 are perspective views of the upper cover of example 7 of this patent.

Fig. 4-6 are right side views of the upper cover of patent example 7.

Fig. 4-7 are perspective views of the variable flow drainage device of the embodiment 7 of the patent.

Fig. 4-8 are assembly views of the variable flow drainage device of the embodiment 7 of the patent.

Fig. 4 to 9 are schematic cross-sectional views of the lower channel member of example 7 of this patent.

Fig. 5-1 is a full sectional view of the siphon deflector of example 9 of this patent in cooperation with a straight-through gutter.

Fig. 5-2 is a schematic diagram of the barrel of example 9 of this patent in conjunction with a shielded manifold.

Fig. 5-3 are schematic diagrams showing the first embodiment of the present invention in combination of a barrel and a collecting chamber with a first partition plate.

Fig. 5-4 are schematic diagrams showing the cooperation of the barrel of example 9 of this patent and a manifold chamber with a first partition.

Figures 5-5 are partial cross-sectional views of the siphon deflector of example 9 of this patent in cooperation with a through-going gutter.

Figures 5-6 are full sectional views of the siphon deflector of example 9 of this patent supporting a suction cup.

Fig. 5-7 are full sectional views of the siphon deflector of example 9 of this patent with the hood supported by a second partition.

FIGS. 5 to 8 are schematic views of a suction chamber provided with three suction tubes according to example 9 of this patent.

Fig. 5-9 are partial cross-sectional views of the siphon deflector with a gas exchange tube of example 9 of this patent in cooperation with a through-going drainage channel.

Fig. 5-10 are exploded views of the siphon deflector and the straight-through gutter of example 9 of this patent.

Fig. 5-11 are schematic structural views of the four-way siphon deflector of example 9 of this patent.

Fig. 5-12 are schematic structural diagrams of a three-way siphon deflector according to embodiment 9 of the present patent.

Fig. 5-13 are schematic structural views of a three-way siphon deflector according to embodiment 9 of this patent.

Fig. 5-14 are schematic structural views of a siphon deflector with a joint water outlet arranged at the bottom according to embodiment 9 of the present patent.

Description of reference numerals 1: the device comprises a drainage plate 10, geotechnical cloth 20, greening soil 30, a breathable observation pipe 40, a rainwater observation well 50, a greening irrigation system 60, a straight-through drainage groove 1000, a flexible drainage groove 2000, a variable flow drainage device 3000 and a siphon variable flow device 4000.

Reference numeral 2: straight-through drainage channel 1000, cell body 1011, non-protrusion 1012, protrusion 1013, bottom plate 1014, water inlet 1015, transition surface 1016, top edge 1017, side edge 1018, buckle structure 1020, protruding hemisphere 1021, articulate hook 1022, indent hemisphere 1023, articulate limit 1024.

Description of reference numerals 3: the water drainage device comprises a flexible water drainage groove 2000, a water drainage groove unit 2010, a main body 2020, a lower edge 2021, a support pillar 2022, a support base 2023, a connecting portion 2030, a connecting structure 2031, a connecting boss 2032, a hollow protrusion 2033, an arc notch 2034 and a water conveying pipeline 2040.

Description of reference numerals 4: variable flow drainage device 3000, first port 3011, second port 3012, third port 3013, fourth port 3014, first channel 3021, second channel 3022, third channel 3023, fourth channel 3024, junction 3030, confluence boss 3031, base 3040, bottom plate 3041, lower channel 3042, flange 3043, upper cover 3050, cover 3051, upper channel 3052, and upper rim 3053.

Description of reference numerals 5: siphon deflector 4000, connector body 4100, connector base 4101, converging cavity 4110, connector water inlet 4111, connector water outlet 4112, shroud 4120, first partition 4130, water absorber 4200, middle housing 4201, water absorbing cavity 4210, water absorbing pipe 4220, first gap 4221, second gap 4222, water absorbing cover 4230, second boss 4231, second partition 4240, through hole 4241, water absorbing cylinder 4242, first boss 4243, grating 4250 and air exchange cylinder 4251.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent. For the purpose of better illustrating the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1, the present embodiment is a rapid rainwater drainage system, which comprises a drainage plate 10, a drainage network and a permeable layer covering the drainage network, wherein the drainage network at least comprises a unit area: the siphon flow transformation devices 4000 are distributed on the periphery of the unit area and connected through the drainage grooves, and the siphon flow transformation devices 4000 discharge water outside the unit area; the variable flow drainage devices 3000 are distributed on the nodes of the drainage network in the unit area, the variable flow drainage devices 3000 are connected with one or more siphon variable flow devices 4000 through drainage channels, and water at different positions in the unit area is directionally guided to the suction variable flow devices; the drainage plates 10 are distributed among the drainage grooves, receive water permeating through the permeable layer in the unit area, and guide the water into the drainage grooves.

This patent quick discharge system of rainwater, generally set up under the filler layer, on the waterproof layer, including drain bar 10, drainage network and the permeable bed of cover above drainage network, the permeable bed keeps apart drainage network and filler layer, the rainwater above the filler layer permeates the filler layer under the action of gravity, filtration to drainage network through the permeable bed, the rainwater is accepted and the water conservancy diversion by drain bar 10, get into drainage network from the drainage tank side opening, discharge after the two-stage of assembling of deflector 3000 and siphon deflector 4000. The improvement is characterized in that the drainage network should comprise the above-mentioned cell areas. The unit area is a core structure forming a drainage network, but the patent does not exclude the forms that a plurality of unit areas are arranged in the drainage network, or the unit areas are connected with a common drainage structure, or a plurality of unit areas are overlapped, and the like, namely, a plurality of siphon flow-changing devices 4000 are arranged around a plurality of flow-changing drainage devices 3000 in the drainage network, and the structures that the siphon flow-changing devices and the flow-changing drainage devices are connected through drainage grooves are all in the scope requested by the patent.

Although also set up drainage network under the filling layer among the traditional technique, nevertheless mainly rely on the slope to assemble the rainwater to drainage system and discharge outward, have the drainage slowly, and inefficiency waits defect in case meet the great situation of rainfall, a large amount of rainwater that are detained in the filling layer can't be got rid of fast, and this will bring great pressure for lower floor waterproof and overall structure stability. This patent is through optimizing the structure of drainage network, and the flow of the drive rainwater that variable flow drainage device 3000 can orient fast, and siphon variable flow device 4000 can bring extra drainage power for whole drainage network, can drive the quick directional discharge of rainwater. Because need not to adopt the slope drainage, through the negative pressure that siphon brought, even also can drive the flow of rainwater on the plane, greatly reduced the construction degree of difficulty. The variable-flow drainage device 3000 in the unit area can guide the multi-channel converged water flow to the four-way siphon variable-flow device 4000 in a directional manner, and the siphon variable-flow device 4000 has the siphon negative pressure effect, so that drainage power can be provided for the whole unit area, and rainwater can be quickly drained. The rainwater rapid drainage system of the patent can comprise one or more unit areas according to specific application areas. The unit area can be connected with a common drainage pipeline, and the common drainage pipeline can collect rainwater to the variable flow drainage device 3000 or the siphon variable flow device 4000 by using a siphon negative pressure or slope drainage mode. The rapid rainwater drainage system comprises the unit areas as the center, the common drainage pipeline or the network is a peripheral integrated rapid rainwater drainage system, or an integrated rapid rainwater drainage system formed by mutually overlapping and staggering a plurality of unit areas, or the integration of the two integrated rapid rainwater drainage systems.

In order to improve the drainage efficiency, the distribution density of the siphon deflector 4000 in a certain area is required in consideration of the limitation of the drainage capacity of the single siphon deflector 4000. Through the experiment verification of establishing various units of the four-way siphon converter devices 4000 with different quantities for years by the inventor on various existing open-air fields, such as roofs, green belts, grasslands or drainage brick floors, and the like, and aiming at rainfall environments of different regions at home and abroad, such as arid regions, general rainfall regions or rainy regions, the experiments show that 1/300 square meter to 800 square meters are the preferred density for realizing quick drainage. The density is higher than 1/300 square meters, the construction cost is high, and the siphon converter 4000 cannot achieve overflow flow in most environments, so that the hydrodynamic force of siphon negative pressure cannot be realized, and the drainage effect is reduced. The density is lower than 1 square meter per 800 square meters, and due to the limited drainage capacity of the standardized siphon converter device 4000, rainwater cannot be drained timely under the condition of large rainfall, so that the aim of quick drainage cannot be fulfilled. According to the rainfall conditions of different areas in China, the distribution density of the siphon flow conversion device 4000 is preferably 1 square meter per 520 to 680 square meters. The distribution density is not only based on rainfall and drainage speed, but also integrates factors in aspects such as standard requirements, size, material cost, service life and the like of all components of the drainage system, is an integrated empirical parameter, is suitable for meeting the compliance requirements in all aspects of a rapid rainwater drainage system of more than 70 percent, and has lower construction cost. But does not exclude the requirement of other special regions on the density from exceeding the range, and the purpose of the patent is to provide a density requirement with wide applicability, which is beneficial to the standardization and popularization of products and improves the market competitiveness.

The regional environment that quick discharge system of rainwater was suitable for is often changeable, mainly is the difference of regional shape, and different shapes need adopt different drainage network layouts to realize that drainage network can cover whole region. The linear drainage grooves and the rectangular network structure formed by the linear drainage grooves can realize the drainage of rainwater with the highest efficiency due to the minimum resistance. However, in order to cover the whole area, it is impossible to cover the whole area with the rectangular network structure, and therefore, in the area which the rectangle cannot cover, a network structure of another shape may be used, and in order to improve the drainage efficiency, as many straight through drainage channels 1000 as possible should be used, and the flexible drainage channels 2000 should be used for the transition connection in a partial area. From this, the water drainage tank is including leading to water drainage tank 1000 and flexible water drainage tank 2000, and in order to realize the rectangle network structure, siphon deflector 4000 and the three-way or the four-way junction structure of deflector 3000 for the right angle UNICOM of this patent, alright like this with lead to water drainage tank 1000 formation rectangle grid structure. Similarly, in the area where the rectangular network structure is not suitable, the flexible drainage channels 2000 are used as the transition connection or the flexible drainage channels 2000 are directly used to form the curved drainage network structure. In order to improve the drainage efficiency of the siphon deflector 4000 and prevent the over-overflow of some siphon deflector 4000 and the water shortage of some siphon deflector 4000 due to the uneven distribution of water quantity in the area, the drainage channel is directly connected with all siphon deflectors 4000 in the unit area. Therefore, direct communication of all siphon flow conversion devices 4000 in the unit area is realized, the drainage quantity of each siphon flow conversion device 4000 can be balanced, and the drainage effect of the whole rainwater rapid drainage system is exerted to the greatest extent. Besides the main structure, the whole rapid rainwater drainage system also needs a common drainage channel connecting piece to realize the general connection of the drainage channel, and can be of various traditional tee joints or four-way joints or lengthened structures.

The drainage power of the siphon converter 4000 mainly comes from the external air pressure, and as described above, the whole rainwater rapid drainage system is buried under the soil filling layer and the permeable layer, the external air pressure is weakened after penetrating through the soil filling layer and the permeable layer, especially the soil filling layer and the permeable layer which are soaked by rainwater, in order to ensure the pressure of siphon negative pressure, a plurality of breathable observation pipes 40 are arranged in the middle of the drainage tank, the breathable observation pipes 40 are communicated with the drainage tank and vertically upwards penetrate through the permeable layer and the soil filling layer to the ground, so that the air pressure can directly act on rainwater flowing in the drainage tank, and stronger drainage pressure is kept. In order to ensure the pressure stability of the rainwater rapid discharge system, enough breathable observation pipes 40 are needed to provide aerodynamic force, and the distribution density of the breathable observation pipes 40 is set to be 1 in the range from 2000 square meters to 8000 square meters. Preferably, 3 to 5 square meters of 2 thousand square meters are arranged, when the density is too low, sufficient aerodynamic force cannot be provided, when the density is too high, the construction cost is too high, and the air-permeable observation pipe 40 needs to be reasonably distributed to achieve effective aerodynamic force supply, otherwise, the siphon effect is influenced, and the design difficulty is higher when the density is higher. The distribution density is not only based on rainfall and drainage rate, but also integrates factors such as standard requirements, size, material cost, service life and the like of each component of the drainage system, and is a comprehensive empirical parameter.

In addition to rapid drainage, the main function of conventional rapid rainwater drainage systems is to provide reclaimed water for greening irrigation, and thus, the present patent also includes a greening irrigation system 60 in communication with a drainage network connected to greening irrigation system 60 via a rainwater observation well 50/reservoir. The rainwater observation well 50 is mainly used for observing whether the siphon action of the rainwater rapid drainage system is normally operated or not, has a certain ventilation function, and also serves as a recovered water storage device, and the recovered rainwater is temporarily stored in the well. In order to prevent the stored rainwater from bringing reverse hydraulic pressure to the drainage network, which affects the drainage power, the connection position of the drainage network is higher than the rainwater observation well 50/the bottom of the reservoir. When the stored rainwater is higher than the connection position of the drainage network, the greening irrigation system 60 is required to drain water timely to reduce the liquid level, so that the connection position of the greening irrigation system 60 is not higher than the connection position of the drainage network, and the connection position is high or low, which means that the greening irrigation system 60 is required to discharge water higher than the connection position of the drainage network.

This patent is through four-way siphon deflector 4000 direct rainwater drainage into rainwater observation well 50/cistern, has higher drainage efficiency, can connect through a section nozzle stub certainly between the two. As described above, in order to prevent the influence of the water storage pressure on the drainage negative pressure of the drainage network, the position of the rainwater inlet connected with the four-way siphon deflector 4000 and the rainwater observation well 50 is between 1/6 and 2/3 of the well depth/pool depth, the position lower than 1/6 of the well depth/pool depth affects the water storage effect, and the position higher than 2/3 of the well depth/pool depth easily forms the hydraulic pressure in the connected short pipes, which is also not beneficial to drainage. The drain pipe of the four-way siphon deflector 4000 needs to be overflowed to form negative pressure, so the pipe diameter of the rainwater inlet is not too large, the irrigation system needs to discharge the redundant rainwater in the rainwater observation well 50/water storage tank as soon as possible, the pipe diameter of the rainwater outlet is larger, and the pipe diameter ratio of the rainwater inlet to the rainwater outlet is preferably 0.2-0.7.

During the period of non-rainfall, the rainwater observing well 50 stores rainwater during rainfall for recycling to perform greening irrigation, the irrigation system can adopt drip irrigation or spraying and other modes, and a rainwater lifting system is needed to be arranged to pump rainwater to the ground for irrigation as the position of a rainwater outlet is located underground. The rainwater lifting system has the other function of quickly discharging rainwater stored in the rainwater observation well when the liquid level in the rainwater observation well 50 is too high and drainage pressure obstacles are brought to a drainage network during rainfall, so that the water storage pressure is reduced, and the balance between the drainage efficiency of the rainwater quick discharge system and the water storage capacity of the rainwater observation well 50 is controlled.

Example 2

As shown in fig. 2-2, 2-3, and 2-4, the through drain tank 1000 of this embodiment includes a tank body 1011, a bottom plate 1014, a water inlet 1015, and a fastening structure 1020, wherein the tank body 1011 has a downward opening, the bottom plate 1014 is horizontally disposed on two sides of the opening of the tank body 1011, and the fastening structure 1020 is disposed on two longitudinal ends of the tank body 1011. The slot body 1011 is provided with projections 1013 at intervals, a non-projection 1012 is arranged between two adjacent projections 1013, the projections 1013 are formed by the surface of the slot body 1011 bulging from the inside to the outside, and the projections 1013 are arched bulges connecting the bottom plates 1014 on both sides.

The projection 1013 has a certain length in the longitudinal direction of the body 1011. The surfaces of the projections 1013 and the non-projections 1012 are smooth, and the whole groove body 1011 has no outward sharp ribs, so that the geotextile is not cut. The projection 1013 is an outward bulge of the surface of the body 1011, so that the projection 1013 has a projection space projected out of the inner cavity of the body 1011. The protrusion 1013 is an arch-shaped bulge, so the intersection of the protrusion 1013 and the non-protrusion 1012 has a turning structure, and the longitudinal section of the trough body 1011 is in a wave shape with a high part and a low part, thereby forming an effect similar to a reinforcing rib, ensuring the compression resistance and bending resistance of the trough body 1011, and effectively resisting the vehicle rolling and impact and the gravity action of the green soil during the backfill construction of the green soil. Through bulge 1013 and the non-bulge 1012 that the interval set up, realized guaranteeing resistance to compression, the bending resistance of cell body 1011 outer wall simultaneously, can cancel the strengthening rib on the cell body 1011 outer wall again, solve geotechnological cloth and be cut broken easily, and then lead to the water inlet by earth jam problem.

The longitudinal length of the projection 1013 is 70mm to 90mm. The structural reinforcement of the tank body 1011 is achieved by the turning structure at the intersection of the projections 1013 and the non-projections 1012 due to the elimination of the reinforcing ribs. The length of the projection 1013 is too long, the structural reinforcement effect is poor. If the length of the protrusion 1013 is too short, the protrusion 1013 may be further reduced into a rib with a larger thickness, so that the effect of smoothing the surface of the slot 1011 may not be achieved. Further, the longitudinal length of the non-protrusion 1012 may be set to 0.5 to 1.5 times the longitudinal length of the protrusion 1013 for optimum reinforcement of the tank structure.

As shown in fig. 2-2, the intersection of the projection 1013 and the non-projection 1012 on the slot 1011 provides a smooth transition 1016. When the longitudinal section of the projection 1013 is an isosceles trapezoid, the projection 1013 has a rising surface and front and rear side surfaces. The transition 1016 covers the surface of the non-protrusion 1012, and the transition 1016 is the side of the protrusion 1013, so that the surface of the integral channel 1011 does not have any vertical inside, further ensuring that the geotextile is not cut.

As shown in fig. 2-5 and 2-6, the wall thickness of the projection 1013 on the slot 1011 is greater than that of the non-projection 1012. The projection 1013 is only partially connected to the bottom plate 1014, since the lower part of the projection 1013 is provided with the water inlet 1015. Under external pressure, the projections 1013 transmit most of the force through the non-projections 1012 to the bottom plate 1014. The intersection of projection 1013 with non-projection 1012 is a weak link and is susceptible to breakage. In addition, the turning structure formed at the intersection is a key position for forming the reinforcing rib effect. The wall thickness of the projection 1013 is greater than the wall thickness of the non-projection 1012.

The height of the projection 1013 at the upper portion of the slot 1011 is smaller than the height of the lower portion. The height of the upper protrusion of the protrusion 1013 is too high, which may weaken the reinforcing effect of the hinge structure and increase the overall size of the slot 1011. The height of the lower ridge is as great as possible, preferably covering the edge of the bottom plate 1014. For rapid rainwater drainage, the permeated water collected by the drain plate will enter the through drain channel through the water inlet 1015, and the water inlet 1015 is located on the lower surface of the projection 1013. When the water inlet 1015 is as close to the drain board 10 as possible, the permeated water can be more rapidly and directly merged into the through drain groove. Therefore, the height of the lower ridge may be greater than the height of the upper ridge.

As shown in fig. 2-5 and 2-6, the cross section of the groove body 1011 is preferably in an inverted U shape. The inverted U-shaped section has better compression resistance. Furthermore, two side surfaces of the lower part of the groove body are cambered surfaces with large radii and are obliquely connected with the bottom plate 1014.

Preferably, the water inlet 1015 is horizontally arranged on the lower surface of the projection 1013, distributed on both sides of the groove 1011, and the water inlet 11 has an upper edge 1017 and a side edge 1018. The geotextile presses on the surface of the projection 1013 under the action of the gravity of the greening soil, the surface of the projection 1013 forms a structure similar to a canopy, and the water inlet 1015 below is protected, so that the problem that the deformed geotextile blocks the water inlet is solved.

Preferably, the two side edges 1018 of the water inlet 1015 extend toward the non-protrusion 1012 on the trough 1011.

Traditional drain bar and through do not have reciprocal anchorage between the water drainage tank, and after the operation is backfilled to the afforestation soil, partial drain bar sent the displacement with through water drainage tank after, was stopped by the geotechnological cloth that the pressurized deformation warp, leads to the infiltration water of collecting in the drain bar to converge through water drainage tank effectively, influences the normal work of discharge system. The horizontal cross-section of water inlet 1015 is the C style of calligraphy, and the height of water inlet 1015 is more than or equal to the height of drain bar, and the drain bar embedding is installed in water inlet 1015. A single straight-through drainage groove limits one direction of the drainage plate, and the drainage plate is fixed on the installation surface by a framework formed by arranging a plurality of straight-through drainage grooves in different directions. The water inlet 1015 of C style of calligraphy has guaranteed the relative position of drain bar with directly passing water drainage tank, has solved the problem that drain bar and directly passing water drainage tank were blockked by the geotechnological cloth that warp. Further, set up bulge 1013 to arc cross section, enable the drain bar of overlap joint on the straight-through water drainage tank under the exogenic action, light water inlet 1015 that slides into the C style of calligraphy downwards, ensured installation accuracy and efficiency. Further, the height of the lower part of the protruding part is larger, so that the embedding amount of the drainage plate at the water inlet 1015 can be increased, and the effect of fixing positions is ensured.

Further, the upper edge 1017 of the water inlet 1015 is inclined downwards from the outer side to the inner side of the groove body 1011. The inclined upper edge 1017 is similar to the arc track of the water inlet 1015, so that the water discharge plate can slide into the C-shaped water inlet 1015 more easily, and can be taken out and adjusted conveniently.

Further, the side edges 1018 of the inlet 1015 are perpendicular to the bottom plate 1014. The drain bar is embedded into the water inlet 1015 of C style of calligraphy, and the side edge 1018 of water inlet 1015 needs with the drain bar parallel and level, reduces the installation space.

The embodiment forms the groove body 1011 through the interval arrangement of the large inner diameter semi-arc section and the small inner diameter arc section, and realizes the compression resistance and the bending resistance of the groove body 1011 under the condition of not using an external reinforcing rib through the wavy turning of the outer wall of the groove body 1011. The smooth arc surface prevents the geotextile from being easily cut. The C-shaped water inlet 1015 is skillfully and horizontally arranged at the lower part of the large-inner-diameter semi-circular arc section, so that the water inlet 1015 can be protected, and the blockage of covered deformed geotextile is avoided. Simultaneously, the drain bar is embedded in C style of calligraphy drain bar, and the infiltration water of collecting in the drain bar can be by quick water conservancy diversion to direct drainage tank inside, greatly improves drainage efficiency. In addition, the C-shaped water inlet 1015 also fixes the relative positions of the drainage plate and the through drainage channel.

As shown in fig. 2 to 7, the non-protrusion 1012 is disposed at both ends of the groove body 1011, and a snap structure 1020 for connecting the through drain is disposed on the non-protrusion 1012. The straight-through drainage channel is produced as a standard part and has a standardized length so as to be convenient to transport and install. Traditional straight-through water drainage tank adopts the draw-in groove structure more, and this embodiment carries out rigid connection with straight-through water drainage tank through buckle structure 1020. The non-convex parts 1012 at the two ends of the straight drainage channel are respectively provided with a small head, wherein the small head is a male buckle, and the large head is a female buckle. The male buckle has a convex hemisphere 1021 at the top end for limiting, and hanging hooks 1022 on the bottom plates 1014 at both sides. The top end of the female buckle is provided with a concave hemisphere 1023 for limiting, and hanging edges 1024 are arranged on the bottom plates 1014 at the two sides. When the through drainage grooves are connected with each other, the female buckle end of one through drainage groove is hung at the male buckle end of the other through drainage groove from top to bottom, and the concave hemisphere 1023 is matched with the convex hemisphere 1021. The straight-through drainage channel is continuously rotated downwards, so that the hanging edge 1024 is buckled on the hanging hook 1022 under the action of external force. Through above-mentioned buckle structure 1020, when satisfying direct water drainage tank rigid connection, again quick assembly disassembly can improve site operation efficiency.

In the embodiment, the high-density polyethylene engineering plastic is adopted as a structural material, and the high-density polyethylene material is characterized by being a high-performance polymer material which can bear mechanical stress in a wider temperature range and can be used in a harsher chemical and physical environment. The material has good mechanical property and dimensional stability, and has strong elasticity and toughness, the compressive strength per square centimeter is about 800 kilograms, and the tensile strength per square centimeter is about 1200 kilograms. The high-density polyethylene material has the characteristics of plant root puncture resistance, good overall stability, high compressive strength and the like, can bear the effective load of greening soil, and can permanently protect the waterproof layer and the basic structure of the roof of the structure.

As shown in fig. 2-1, when the through-drain channel 1000 of this embodiment is constructed on site, the through-drain channel 1000 is laid on the installation plane according to the design layout. And then two adjacent straight-through drainage channels 1000 are rigidly connected and fixed through the buckle structures 1020 at the two ends of the straight-through drainage channels 1000. Next, the drain board 10 is laid in the middle of the framework formed by the straight-through drain grooves 1000. The drainage plate 10 is overlapped on the surface of the projection 1013 of the drainage channel, and is slid into the water inlet 1015 shaped like a letter C by pressing with hands or stepping on with feet, and the edge of the drainage plate 10 is embedded in the water inlet 1015. Up to this point, the drain board 10 and the through drain channel 1000 on the installation plane are fixed. And then, a layer of geotextile 20 is laid above the drainage plate 10 and the straight-through drainage groove 1000, and finally, the greening soil 30 is backfilled.

Example 3

As shown in fig. 3-1 and 3-2, this embodiment is a flexible drainage channel 2000, which includes several sections of drainage channel units 2010, and two ends of each section of drainage channel unit 2010 are provided with connecting structures 2031; the drainage channel units 2010 are connected with each other through a connecting structure 2031 and can rotate with each other; the plurality of drainage channel units 2010 are connected one by one to form the flexible drainage channel 2000.

The embodiment is divided into a plurality of sections of drainage groove units 2010 through a bionic design on the basis of the traditional straight-through drainage groove. Two ends of each section of drainage groove unit 2010 are provided with connecting structures 2031, and the plurality of sections of drainage groove units 2010 are connected in sequence in pairs so as to assemble the flexible drainage groove 2000. Both ends of the flexible drain channel 2000 may be connected to the through drain channel 1000 described above. On one hand, as any two drainage channel units 2010 can rotate mutually within a certain angle range through the connecting structure 2031, the whole drainage channel formed by the plurality of drainage channel units 2010 has certain flexibility relative to the traditional straight-through drainage channel, and can be adjusted to be in a proper shape according to the specific shape or position of a building roof. Specifically, the flexible drain tank 2000 may be adjusted to a C-shape, an S-shape, or the like as a whole. Of course, the flexible drainage channel 2000 may also be optionally adjusted to any irregular shape in order to avoid building structures on the building roof. In addition, the length specification of the flexible drainage channel 2000 is flexible compared to the limited length specification of the conventional through drainage channel. As the number of the drain tank units 2010 connected one by one in sequence is gradually increased or decreased, the entire length of the flexible drain tank 2000 is gradually increased or decreased. The length of the flexible drainage channel 2000 is freely increased or decreased by taking a section of the drainage channel unit 2010 as a unit until the requirement of connection between drainage channels is met. Therefore, the flexible drainage channel 2000 solves the problem that the drainage channel has a single arrangement shape, thereby achieving the effect that the drainage channel is arranged in any shape, any position and any length. On the other hand, based on the flexibility of the drainage channel, the description will be continued by taking a building roof partially in a triangular shape as an example. According to the triangular shape of the building roof, one preferred arrangement scheme of the straight-through drainage channel is as follows: the three sides of the triangle are respectively taken as the reference, and multiple annular arrangement is carried out by a plurality of similar triangles from the outer side to the center according to a certain interval. In a preferred arrangement, the straight-through drainage channels are connected at the angles of three corners of a triangle. Because the corner is not necessarily 90 degrees, traditional general tee bend water drainage tank or four-way water drainage tank can not directly use. The flexible gutter 2000 can adjust the rotation angle between its respective gutter units 2010 so as to obtain an arbitrary connection angle between both ends, which corresponds to a gutter connector for connecting two straight-through gutters arranged at an arbitrary angle. Therefore, the flexible water draining groove 2000 solves the problem of single connection form of the water draining grooves, and achieves the effect of connection between the water draining grooves at any angle.

In the embodiment, the flexible drainage channels and the flexible drainage channels are flexibly connected through the plurality of sections of drainage channel units 2010, so that the drainage channels can adopt an irregular and better arrangement scheme according to the specific shape and the construction requirements of the building roof, and are not limited to a rigid and single arrangement form (such as a transverse and longitudinal staggered chessboard arrangement form), and the requirements of completely covering the building roof by the drainage channels and quickly constructing the drainage channels are met.

Further, the length of each section of gutter unit 2010 will directly affect the minimum arc radius at which the assembled flexible gutter 2000 will bend. In this embodiment, the center distance of the connecting structures 2031 at the two ends of the drainage channel unit 2010 is taken as the pitch length of the drainage channel unit 2010, and the distance between the two water inlets arranged on the side surface of the straight-through drainage channel is taken as the division length of the flexible drainage channel. The length of the joint can be designed into various length specifications according to the requirement of mass production, and the length of the joint ranges from 1 to 3 division lengths.

As shown in fig. 3-3 and 3-4, preferably, the connection structure 2031 of the drainage channel unit 2010 includes a connection boss 2032 and a hollow boss 2033 that can be fastened to each other; the connection boss 2032 is centrally disposed on an upper surface of one end of the drain tank unit 2010; a hollow protrusion 2033 is centrally provided on the upper surface of the other end of the drain tank unit 2010. The outer surface of the connection boss 2032 of one drainage channel unit 2010 and the inner surface of the hollow protrusion 2033 of the other drainage channel unit 2010 are engaged with each other, and the two drainage channel units 2010 are rotated with each other by the central axis of the connection boss 2032 or the hollow protrusion 2033. The connecting bosses 2032 and the hollow protrusions 2033 of the plurality of sections of the drainage channel units 2010 are buckled in sequence to form the flexible drainage channel 2000. The two ends of the flexible drainage channel 2000 are respectively a connecting boss 2032 and a hollow boss 2033. Further, the side of connecting boss 2032 and hollow protrusion 2033 is the inclined plane to in connection structure 2031's lock and split, and then make things convenient for flexible water drainage tank 2000's equipment adjustment and connection. In this embodiment, the connection boss 2032 and the hollow protrusion 2033 are circular truncated cones having matching diameters, and the pitch length is a distance between central axes of the connection boss 2032 and the hollow protrusion 2033 on the drainage channel unit 2010. The other drainage channels also adopt the connection structure 2031 of the connection boss 2032 and the hollow protrusion 2033, which are able to be fastened with each other, that is, the convex hemisphere 1021 of the through drainage channel 1000 is equivalent to the connection boss 2032 of the embodiment, and the concave hemisphere 1023 is equivalent to the hollow protrusion 2033. Therefore, the connection with the assembled flexible drainage groove 2000 can be directly performed.

Preferably, the drain tank unit 2010 includes a body 2020 and a connection portion 2030; the connecting portions 2030 are respectively provided at both ends of the body 2020; one end of the connecting part 2030 is connected with the main body 2020, and the other end of the connecting part is suspended; the upper surface of the connection portion 2030 is provided with the connection structure 2031. The body 2020 is shaped substantially the same as a conventional drain tank and is specifically designed according to different requirements. Partial edges of both ends of the body 2020 extend outward to form the connection portions 2030. The connecting portion 2030 corresponds to an overhanging structure of the body 2020. In this embodiment, the coupling bosses 2032 and the hollow protrusions 2033 are provided on the upper surfaces of the coupling portions 2030 at both ends of the drain tank unit 2010, respectively.

In this embodiment, the side wall of the connecting portion 2030 is provided with a notch, most of the side wall is removed, and only a small amount of side wall is retained to connect with the upper surface, so as to avoid interference when two adjacent drainage channel units 2010 rotate with each other. In addition, the notch is also used as a water inlet of the flexible drainage channel 2000 consisting of the plurality of sections of drainage channel units 2010, so that the seepage water is absorbed from the soil, and the siphon drainage function is completed.

Further, an arc notch 2034 is formed in the side wall of the connecting portion 2030, and one end of the arc notch 2034 extends to the upper surface of the suspended end of the connecting portion 2030. The free end of the connecting portion 2030 has a sheet-like structure having only an upper surface.

Further, the connecting portion 2030, the body 2020 and the connection portion therebetween form a turning structure. The surface of the connecting portion 2030 is reduced by one turn with respect to the surface of the body 2020, and a smooth slope is provided at the junction to make a transition between the connecting portion 2030 and the body 2020. The connecting portion 2030, the slope, and the body 2020 constitute a turning structure when viewed from a longitudinal section of the drain tank unit 2010. The hinge structure serves as a reinforcing rib, which strengthens the connection strength between the connecting portion 2030 and the main body 2020, and strengthens the compressive strength of the main body 2020.

As shown in fig. 3-5, the body 2020 is further generally inverted U-shaped in cross-section. The surface of main part 2020 is smooth, does not have convex edge to avoid after building roofing backfill greening soil 30, the geotechnological cloth 20 of laying above the flexible water drainage tank is cut open, and silt floods the water drainage tank and causes the problem of jam.

Further, the height of the body 2020 is provided with two specifications according to the position where the flexible drainage groove 2000 is disposed. In one specification, the height of the body 2020 is the same as that of the other drainage channels, and the drainage plate 10 is overlapped on the side edge of the flexible drainage channel 2000. In another specification, the body 2020 is shorter than other drainage channels by the height of one drainage plate 10, and the flexible drainage channel 2000 is placed on the drainage plate 10 and connected to the other drainage channels.

Further, the sidewall of the main body 2020 is provided with a lower rim 2021, and the lower rim 2021 is horizontally arranged at the lower edge of the sidewall of the main body 2020. The provision of the lower rim 2021 increases the contact area when the drain tank unit 2010 is disposed. When the flexible drain channel 2000 is placed on the drain panel 10, the lower rim 2021 effectively disperses the pressure of the green soil 30 it is subjected to, preventing the body 2020 of the drain channel unit 2010 from crushing the drain panel 10. Lower rim 2021 may be disposed on one or both sides of body 2020, and may be disposed toward the inside or outside of body 2020. When the lower edge 2021 is disposed on the outer side, the overturn prevention capability of the flexible drainage groove 2000 can be further improved, and the flexible drainage groove 2000 is prevented from being easily overturned in the subsequent construction. In this embodiment, the lower rim 2021 is disposed on both sides of the main body 2020, perpendicular to the sidewall of the main body 2020.

Preferably, a water pipe 2040 is further included, and the water pipe 2040 is disposed inside the flexible drainage channel 2000. When the flexible gutter 2000 is used as a gutter connector, connecting a through gutter or other gutter, the flexible gutter 2000 will primarily function to convey water. After other water drainage tank are connected to flexible water drainage tank 2000, its self is adjusted to the curve shape usually, and flexible water drainage tank 2000's side still has the foretell breach of a plurality of simultaneously, and water inlet promptly, this will weaken its water conservancy diversion effect to the infiltration water, reduces the holistic drainage efficiency of water drainage tank. The water conveying pipeline 2040 is arranged in the flexible drainage groove 2000, so that the water inlet of the flexible drainage groove 2000 is reserved, and the problem of the seepage water diversion effect is solved. In addition, the water delivery passage 40 having a certain structural strength may also serve as an internal reinforcing structure to increase the overall pressure-bearing capacity of the flexible drainage channel 2000. In this embodiment, the water conduit 2040 may be a drainage blind pipe or a flexible permeable pipe. The diameter of the drainage blind pipe or the flexible permeable pipe is smaller than the distance between the inner walls of the drainage channel units 2010, and the drainage blind pipe or the flexible permeable pipe is completely embedded in the flexible drainage channel 2000. The length of the drainage blind pipe or the flexible permeable pipe is slightly longer than that of the flexible drainage tank 2000. When the drainage blind pipe or the soft permeable pipe is installed, two ends of the drainage blind pipe or the soft permeable pipe slightly extend into the other drainage grooves.

Further, the drain channel unit 2010 is generally injection-molded using a high-density polyethylene material, and the wall thickness of the drain channel unit 2010 is preferably 2.0 to 3.0mm. The connection part 2030 of each of the drain unit 2010 in the flexible drain tank 2000 is weak to be stressed, and is deformed more than the body 2020 of the drain unit 2010 after the green soil 30 is backfilled. Therefore, when the water pipe 2040 has certain pressure resistance, the wall thickness of the drainage channel unit 2010 can be selected to be thinner; when the pressure resistance of the water pipe 2040 is weak, the wall thickness of the drainage channel unit 2010 is selected to be thicker.

Example 4

As shown in fig. 3-6, this embodiment is a flexible drainage channel 2000. The structure of the present embodiment is similar to embodiment 3, and the same structure is not repeated, and the differences are as follows:

as shown in fig. 3 to 7, in the present embodiment, the notch of the side wall of the connecting portion 2030 of the drain tank unit 2010 is further extended, the side wall of the connecting portion 2030 is completely removed, and the connecting portion 2030 has a sheet-like structure with only an upper surface. The surface of the connecting portion 2030 is flush with the surface of the main body 2020, and the connecting portion 2030 corresponds to a sheet-like structure extending outward from the upper edge of the main body 2020. Further, a certain thickness of material is removed from the upper surface of the connecting portion 2030 at one end of the water drainage groove unit 2010, and a certain thickness of material is also removed from the lower surface of the connecting portion 2030 at the other end, so that after two adjacent water drainage groove units 2010 are connected, the surface of the connecting portion 2030 does not protrude from the surface of the main body 2020, and the surface of the water drainage groove unit 2010 is kept smooth.

As shown in fig. 3 to 7 and 3 to 8, a plurality of support columns 2022 are spaced apart from each other on a side wall of the main body 2020, and the support columns 2022 protrude downward from a lower surface of the main body 2020. When this scheme is used, the flexible drainage channel 2000 is mainly placed on the drainage plate 10. The support post 2022 is inserted between the gaps of the inner bosses of the drain board 10 to fix the relative position between the flexible drain groove 2000 and the drain board 10, thereby also reinforcing the connection between the whole drain groove and the drain board 10 and preventing the relative displacement between the drain groove and the drain board 10. The difference in height between the support post 2022 and the side wall of the main body 2020, i.e. the height of the protrusion, is exactly the height of one drainage plate 10. The support post 2022 may be disposed on a single or double side wall of the body 2020. The number of support posts 2022 depends on the pitch length of the gutter unit 2010. In this embodiment, the supporting columns 2022 are disposed on the sidewalls of the main body 2020 on both sides, and the number of the supporting columns 2022 is 3 on one side.

Example 5

As shown in fig. 3-9, this embodiment is a flexible gutter 2000. The structure of the present embodiment is similar to embodiment 4, and the same structure is not repeated, and the differences are as follows:

as shown in fig. 3-10, a support seat 2023 protruding downward is further provided on the lower surface of the lower edge 2021. When this solution is used, the flexible drainage channel 2000 is mainly placed on the drainage plate 10. The supporting base 2023 has a similar function to the supporting post 2022, and will not be described in detail. In this embodiment, the lower beads 2021 are disposed at both sides of the main body 2020 toward the inner side of the main body 2020, and are perpendicular to the side wall of the main body 2020.

Example 6

This embodiment is a flexible water drainage tank. In this embodiment, on the basis of embodiments 3, 4 and 5, drain tank adapting units are added at two ends of the water tank.

Preferably, the drainage channel switching unit is further included, one end of the drainage channel switching unit is provided with the connecting structure, and the other end of the drainage channel switching unit is provided with an assembling structure used for being connected with other types of drainage channels. The drain tank switching unit has a structure substantially similar to that of the drain tank unit, except that one end of the drain tank switching unit is an assembly structure. The traditional drainage channels are various in types, the assembly structures of the drainage channels of different brands are different from each other, and even the assembly structures of the drainage channels of different series of the same brand are different from each other. After the two ends of the traditional flexible drainage channel are respectively provided with the drainage channel switching units of different types, the flexible drainage channel can be connected with the traditional arbitrary other drainage channels through different assembly structures. This embodiment is through setting up water drainage tank switching unit, greatly richen flexible water drainage tank's connected mode, further enlarges flexible water drainage tank's application range. In this embodiment, the drainage channel switching units are divided into two types, one type of the drainage channel switching units is provided with a hollow protrusion 2033 at one end thereof to match with the connection boss 2032 of the adjacent drainage channel unit; one end of the other type of the drain tank switching unit is provided with a connection boss 2032 to match the hollow protrusion 2033 of the adjacent drain tank unit.

Example 7

As shown in fig. 4-1 to 4-7, this embodiment is a variable flow drainage device 3000, which includes a first port 3011 to a fourth port 3014 for connection, and a first channel 3021 to a fourth channel 3024 corresponding to the ports, and the first channel 3021 to the fourth channel 3024 are communicated with each other at a junction 3030. The first channel 3021 to the third channel 3023 are curved, and the included angle between the first channel 3021 to the third channel 3023 and the fourth channel 3024 at the intersection 3030 is an acute angle; the first port 3011 to the fourth port 3014 are provided with connection structures for connection with other drain tanks.

In this embodiment, the first port to the fourth port refer to a first port, a second port, a third port, and a fourth port; the first to fourth channels refer to a first channel, a second channel, a third channel, and a fourth channel. By designing the curves from the first channel 3021 to the third channel 3023 of the four-way drainage channel, the permeated water entering the channels is independent and does not affect each other. The angle at which the first to fourth passages 3021 to 3024 join at the junction 3030 is the angle at which permeate flows in the first to fourth passages 3021 to 3024. The included angle between the first channel 3021 and the third channel 3023, which is formed when the first channel 3021 to the third channel 3024 converge with the fourth channel 3024 at the intersection 3030, is an acute angle, so that the penetration water is ensured to converge at a certain angle instead of directly colliding with each other when converging, the penetration water is favorable for forming a vortex, the penetration water speed is increased, and the problem that the four-way drainage channel easily forms penetration water collision and turbulence is solved. Permeate water at junction 3030 eventually rapidly exits through fourth passage 3024. The first port 3011 to the fourth port 3014 of the variable flow drainage device are generally distributed in a cross shape, but may also be distributed in a tree branch shape. The shapes of the first port 3011 to the fourth port 3014 depend on the shapes of other drain grooves connected thereto. The first port 3011 to fourth port 3014 are generally the same shape, or the fourth port 3014 is larger than the first port 3011 to third port 3013. This embodiment is assembled with a straight-through drain 1000 having an inverted U-shaped cross-section, so that the first port 3011 to the fourth port 3014 are also correspondingly inverted U-shaped.

Preferably, the first port 3011 to the fourth port 3014 are distributed in a cross shape; the direction from the first port 3011 to the third port 3013 is up-down, and the direction from the second port 3012 to the fourth port 3014 is left-right; the junction 3030 is non-centered and disposed offset to the fourth port 3014. The first port 3011 is aligned with the center of the third port 3013, and the second port 3012 is aligned with the center of the fourth port 3014. The first port 3011 to the fourth port 3014 are distributed in a cross shape, and can directly replace a four-way drainage groove in the prior art to complete system upgrade. The intersection 3030 is off-center with respect to the cross center and is disposed on the side of the fourth port 3014. The shortest length of fourth channel 3024 reduces the kinetic energy loss of permeate water as it exits, further allowing permeate water at junction 3030 to exit the variable flow drain quickly.

Further, the first channel 3021 runs as follows: starting from the first port 3011 downwards, sequentially deviating in the left direction and the right direction, and then connecting to the junction 3030; the direction of the second channel 3022 is: starting from the second port 3012 to the right, sequentially shifting in the upper direction, the lower direction and the upper direction, and then connecting to the junction 3030; the third channel 3023 runs as follows: starting from the third port 3013, the offset is sequentially in the left direction and the right direction, and then the offset is connected to the junction 3030. The first channel 3021 and the third channel 3023 complete 2 offsets and the second channel 3022 completes 3 offsets, respectively. The first channel 3021 to the third channel 3023 each include a plurality of smooth curves, and arc transitions are also provided at corners. In order to improve the structure compactness of the variable flow drainage device, the outer walls of the first channel 3021 and the second channel 3022 are partially overlapped, and the outer walls of the second channel 3022 and the third channel 3023 are partially overlapped; the outer walls of the first and third channels 3021 and 3023 extend toward the fourth port 3014, forming the outer wall of the fourth channel 3024.

Preferably, the junction 3030 is provided with a confluence boss 3031 for guiding the permeated water.

Further, the first passage 3021 is connected to the junction 3030 from the left and right sides of the confluence boss 3031; the second channel 3022 connects to the junction 3030 at an angle tangential to the left side of the manifold boss 3031; the third passage 3023 connects to the junction 3030 at an angle tangential to the right side of the manifold boss 3031.

Further, the cross-sectional size of the confluence boss 3031 is gradually reduced with the height.

The confluence boss 3031 is equivalent to a ring island of the junction 3030 and can guide the seepage water flowing in from the first passage 3021 to the third passage 3023. The number of the confluence bosses 3031 may be one or more according to the running direction of the permeated water guided by the junction 3030, and the shape of the confluence bosses 3031 may be a cylinder or a circular truncated cone or a table or a column composed of other curved surfaces. The bus bar 3031 is provided on a side offset from the fourth port 3014 and is offset from the center of the fourth port 3014. The permeating water flowing out of the first channel 3021 is divided into water flows on the left side and the right side by the confluence boss 3031; the left water flow is downward around the manifold boss 3031 and the right water flow is rightward around the manifold boss 3031. The permeate from the second passage 3022 flows in at an angle obliquely upward and tangential to the left side of the manifold boss 3031; a part of the permeated water upwardly surrounds the manifold boss 3031, and the other part of the permeated water downwardly surrounds the manifold boss 3031. Permeate from the third passage 3023 flows in at an angle that is inclined upward and tangential to the right side of the manifold boss 3031; the permeate water flows upward and right around the manifold boss 3031. The permeate from the different channels is guided by the manifold 3031 to join around, and finally flows out through the fourth channel 3024. When the amount of the seepage water flowing out from the first passage 3021 to the third passage 3023 is gradually increased, the confluence boss 3031 occupies a certain space at the junction 3030, so that the seepage water at the junction 3030 is blocked, and the cross-sectional dimension of the confluence boss 3031 is gradually reduced along with the height, so that the situation can be effectively reduced. Further, the height of the confluence boss 3031 is 1/3 to 2/3 of the height of the junction 3030. If the height of the confluence boss 3031 is too low, the guide effect of the permeated water flowing from the first passage 3021 to the third passage 3023 is not exerted; the height of the manifold boss 3031 is too high, and therefore, permeation water flowing into the first to third passages 3021 to 3023 is easily blocked, and resistance is increased.

As shown in fig. 4-7 and 4-8, the first port 3011 to the fourth port 3014 are preferably provided with a snap structure 1020 for connection. Further, the snap structure 1020 includes a male buckle and a female buckle; in this embodiment, the first port 3011 to the fourth port 3014 are all female fasteners, and the corresponding port for connection of the straight-through drainage channel 1000 is a male fastener. The connection method of the variable flow drainage device 3000 and the through drainage channel 1000 is similar to that of the through drainage channel 1000 itself, and the front and the rear adopt the same fastening structure 1020, which will not be described in detail herein.

As shown in fig. 4-1 to 4-7, the variable flow drainage device of the present embodiment is of a split design, and includes a base 3040 and an upper cover 3050; the base 3040 includes a bottom plate member 3041 and a lower tunnel member 3042, the lower tunnel member 3042 being fixed on the bottom plate member 3041; the upper cover 3050 includes a cover plate member 3051 and an upper tunnel member 3052, the upper tunnel member 3052 being fixed to the cover plate member 3051; the surface of the base plate member 3041, the surface of the deck member 3051, the lower passage member 3042 and the upper passage member 3052 together constitute said first through fourth passages 3021 to 3024. The first to fourth ports 3011 to 3014 and the snap structure 1020 are located on the deck member 3051 of the upper cover 3050. The manifold boss 3031 of the junction 3030 is located on the base member 3041 of the base 3040. The cover plate member 3051 has a smooth surface and an upper surface and is provided with a handle.

The floor member 3041 of this embodiment is an octagonal plate member, and a lower tunnel member 3042 is fixed to an upper surface thereof. The lower path member 3042 is a plurality of curved flat plate members. The first port 3011 to the fourth port 3014 are notched at corresponding positions on the bottom plate member 3041, and the open end of the lower tunnel member 3042 is terminated at the notched positions. The cover plate member 3051 is an octagonal cover, and a lower tunnel member 3042 is fixed to a lower surface. The lower channel member 3042 is a plurality of curved plate members. The cover plate member 3051 is opened at a side surface thereof and extends outward to form the first port 3011 to the fourth port 3014. The open end of the upper channel member 3052 terminates at the open position of the first port 3011 to the fourth port 3014. After the upper cover 3050 is assembled with the base 3040, the lower tunnel part 3042 coincides with the edge of the upper tunnel part 3052, and forms the first through fourth tunnels 3021 to 3024 together with the upper surface of the base plate part 3041 and the lower surface of the cover plate part 3051; the open ends of the lower channel member 3042 and the upper channel member 3052 abut the sides of the first port 3011 to the fourth port 3014. The base 3040 and the upper cover 3050 of this embodiment are both produced by injection molding and integral molding.

As shown in fig. 4-9, further, the cross-section of the lower channel member 3042 is narrower at the bottom and wider at the top. The cross-sectional shape of the lower tunnel member 3042 may be V-shaped, U-shaped, or the like. When the seepage water passes through the lower channel part 3042, the flow speed is accelerated due to the small cross-sectional area of the bottom, so that impurities in the seepage water are prevented from precipitating in the lower channel part 3042, and the variable flow drainage device is prevented from being blocked by the impurities after long-term use, and further the drainage efficiency of the system is prevented from being influenced. In addition, the cross-section of a conventional through drain channel is generally in the shape of an inverted U or the like, with the cross-section of the through drain channel being wider at the bottom and narrower at the top, just opposite the lower channel member 3042. Accordingly, the lower channel member 3042 is also provided with an associated blend surface thereon. The cross section of the lower channel 3042 near the first port 3011 to the fourth port 3014 matches the cross section of the straight-through drainage channel, and gradually changes to a cross section with a narrower bottom and a wider top through a transitional curved surface.

Further, a rib 3043 is arranged around the bottom plate 3041; the cover plate 3051 and the rib 3043 are matched in shape, so that the upper cover 3050 and the base 3040 are fixed in position. The rib 3043 includes a plurality of strips, each of which is connected to an opening end of the lower channel 3042 in sequence, and the overall shape of the rib is similar to that of the upper cover 3050. The ribs 3043 form a plurality of steps on the surface of the bottom plate 3041, and the side surface of the cover plate 3051 is matched with the steps, so that the mutual planar movement of the upper cover 3050 and the base 3040 is limited.

Further, the surface of the deck member 3051 is further provided with a reinforcing rib, and the peripheral edge of the deck member 3051 is further provided with an upper edge 3053. After the variable flow drainage device is installed, greening soil backfilling operation is required, so that the reinforcing ribs can effectively improve the strength of the upper cover 3050. After the upper cover 3050 covers the base 3040, the upper edge 3053 is aligned with the edge of the bottom plate 3041 of the base 3040, which improves the aesthetic property of the variable flow drainage device on one hand and improves the anti-overturning capability of the upper cover 3050 on the other hand. The reinforcing beads of the deck member 3051 of the present embodiment are distributed from the center of the upper surface to eight corners of the octagon and extend downward along the side surface of the deck member 3051. The upper rim 3053 is also aligned with the sides of the first port 3011 to the fourth port 3014.

Example 8

This embodiment is a variable flow drainage device, and is similar to the structure of embodiment 7, and the same structure will not be described again, and only the structure different from embodiment 7 will be described below. The present embodiment employs an integral design, namely: the base and the upper cover are integrally formed. In addition, the first channel to the fourth channel are round tubes, and the cross section of each channel is round.

Preferably, the cross-sectional areas of the first to third passages are smaller than the cross-sectional areas of the first to third ports, respectively. The first channel and the first port are taken as an example for explanation, and other channels and other ports are similar. The cross-sectional shape of the first channel and the cross-sectional shape of the first port may be similar or different; the cross-sectional shape tapers from the first port through the first passage and the cross-sectional area also tapers. After the seepage water flows in through the first port, the flow speed of the seepage water is gradually accelerated in the first channel, then the seepage water reaches the intersection to form a vortex, and finally the seepage water flows out quickly through the fourth channel, so that the drainage efficiency of the variable flow drainage device is further improved.

In this embodiment, the fastening structure includes a male buckle and a female buckle; when the first port and the second port are arranged to be male buckles, the third port and the fourth port are arranged to be female buckles; when the first port and the second port are arranged as female buckles, the third port and the fourth port are arranged as male buckles.

The description is continued by taking an example in which the third port and the fourth port are configured as a female buckle when the first port and the second port are configured as a male buckle. When the straight-through drainage channel is arranged, the straight-through drainage channel is usually connected in sequence through the sequence of male buckle-female buckle or female buckle-male buckle, therefore, at the crossing position of the straight-through drainage channel in the transverse direction and the longitudinal direction, both ends of the variable flow drainage device in the transverse direction or the longitudinal direction necessarily need to be provided with the buckling structures of the male buckle-female buckle or the female buckle-male buckle. The first port and the third port, and the second port and the fourth port are designed to be a pair of male buckle-female buckle structures, so that the increase of a switching structure can be avoided, and the installation of the variable flow drainage device is convenient and simplified.

Example 9

The present embodiment provides a siphon deflector 4000, which not only can achieve the mutual communication between the drainage channels as the conventional drainage channel joint, but also can achieve the purpose of increasing the water flowing speed by local speed reduction and overall speed increase.

As shown in fig. 5-1, the siphon deflector comprises a joint body 4100 and a water absorber 4200 disposed above the joint body 4100; the joint body 4100 is provided with a converging cavity 4110, the side wall of the joint body is provided with a joint water inlet 4111 communicated with the converging cavity 4110, and the side wall or the bottom of the joint body is provided with a joint water outlet 4112 communicated with the converging cavity 4110; the water absorber 4200 comprises a water absorbing cavity 4210, a water absorbing pipe 4220 and a water absorbing cover 4230; the water suction cavity 4210 is communicated with the confluence cavity 4110 and the atmosphere; the upper part of the suction tube 4220 is positioned in the suction cavity 4210 and intersects with the horizontal plane, and the lower part thereof extends to the bottom of the converging cavity 4110 and leads to a joint water outlet 4112; the water absorption cover 4230 is disposed in the water absorption cavity 4210, and has an opening facing downward and covering the upper part of the water absorption tube 4220, a gap is left between the inner surface of the water absorption cover and the outer surface of the water absorption tube 4220, and the opening of the water absorption cover is communicated with the water absorption cavity 4210.

The siphon converter has a basic structure of a traditional drainage groove joint, namely a joint body 4100, wherein a joint water inlet 4111 of the joint body 4100 can be connected with a straight-through drainage groove 1000 like the traditional drainage groove joint to play a role of connecting criss-cross straight-through drainage grooves 1000 into a net, a joint water inlet 4111 leads to a converging cavity 4110 arranged in the joint body 4100, and the converging cavity 4110 is used for water flow from different joint water inlets 4111 to pass through and finally to be drained underground through a drainage pipe. In addition, in this embodiment, a water absorber 4200 is added on the basis of a conventional water drainage groove joint, where the water absorber 4200 includes a water absorption tube 4220 extending into the collecting chamber 4110 from above the collecting chamber 4110 and a water absorption cover 4230 covering the water absorption tube 4220 and above the collecting chamber 4110, the water absorption tube 4220 is disposed vertically or obliquely and is not parallel to the horizontal plane, a gap is reserved between the inner surface of the water absorption cover 4230 and the outer surface of the water absorption tube 4220, so that water flow can enter the water absorption tube 4220 from the top inlet of the water absorption tube 4220 through the gap, and the opening of the water absorption cover 4230 is communicated with the collecting chamber 4110; the lower part of the water suction pipe 4220 stands in the converging cavity 4110, plays a role in reducing turbulence to a certain extent, also contributes to a part of height difference between the inlet and the outlet of the water suction pipe 4220, and is beneficial to achieving the water suction effect, when water enters the gap and is higher than the top end of the water suction pipe 4220, the water suction pipe 4220 plays a role in sucking water, not only can the water flow speed loss caused by mutual impact of water flows from different directions be avoided, but also the water flow speed of the siphon deflector can be accelerated.

Under the action of siphon, after water flows from different directions rapidly flow into the siphon flow transformation device, the water flow easily impacts the lower part of the water suction pipe 4220 arranged in the converging cavity 4110, and the service life of the siphon flow transformation device is influenced. For this purpose, as shown in fig. 5-2, a sheath covering the barrel 4220 is disposed in the converging chamber 4110, a lower portion of the barrel 4220 passes through the sheath and then leads to the joint water outlet 4112, a plurality of joint water inlets 4111 are disposed on a side wall of the barrel 4210, and the plurality of joint water inlets 4111 are disposed around the sheath. The arrangement of the sheath protects the slender water suction pipe 4220 on the one hand, and reduces the actual space of the confluence cavity 4110 on the other hand, which is beneficial to enabling the siphon deflector to form full pipe flow more quickly and reducing the space for storing accumulated water.

As shown in fig. 5-3 and 5-4, a plurality of first partition plates 4130 are disposed in the converging chamber 4110, and the plurality of first partition plates 4130 are radially arranged around the jacket to divide the converging chamber 4110 into a plurality of sub-chambers disposed around the jacket, and the sub-chambers are communicated with each other. The first partition plate 4130 can further reduce the impact force from the water flow, and has a guiding function, so that the water flow is enabled to be converged in the converging cavity 4110 and the water suction cavity 4210 and flows towards the opening direction of the water suction cover 4230, the possibility that the water flow bypasses the water suction pipe 4220 or a sheath to impact another water flow is reduced, the loss of the water flow energy is reduced, the purposes of local speed reduction (at the first partition plate 4130) and overall speed increase are achieved, and the water flow speed is further improved; the sub-cavities are communicated with each other, so that the pressure balance of all parts in the siphon converter is maintained, and the service life of the siphon converter is prolonged. The first partition 4130 may have various shapes, such as a flat plate (see fig. 5-3), an arc plate (see fig. 5-4), and the like.

The water absorption hood 4230 of the embodiment is arranged in the water absorption cavity 4210, when the converging cavity 4110 is filled with water, the water gathered from the joint water inlets 4111 overflows into the water absorption cavity 4210, and simultaneously gradually fills the gap until the water level in the water absorption cavity 4210 can continuously rise when the water absorption pipe 4220 plays a role of water absorption, and the water absorption function of the water absorption pipe 4220 also promotes the water in the water absorption cavity 4210 to be rapidly absorbed, so that the passing speed of water flow at the siphon deflector is ensured. Preferably, the height of the water absorption cavity 4210 is 2 to 3 times of the height of the confluence cavity 4110.

Generally, the diameter and gap width of the suction pipe 4220 need to be designed to be small, which will limit the passing speed of water flow to some extent, for this purpose, as shown in fig. 5-5, a second partition 4240 with a through hole 4241 is arranged between the suction cavity 4210 and the converging cavity 4110, and the top of the second partition 4240 is provided with a suction cylinder 4242 with an upward opening; the suction tube 4242 is sleeved outside the suction tube 4220 and inserted in the gap, the gap is divided into a first gap 4221 and a second gap 4222, the first gap 4221 is positioned between the outer surface of the suction tube 4242 and the inner surface of the suction cover 4230, the second gap 4222 is positioned between the inner surface of the suction tube 4242 and the outer surface of the suction tube 4220, and the opening end surface of the suction tube 4242 is higher than the top end of the suction tube 4220. The water suction cylinder 4242 divides the gap into two parts, so that the water suction effect is ensured, and the passing speed of water flow at the position is improved. The water flow gathered from the joint water inlet 4111 into the converging cavity 4110 enters the water suction cavity 4210 through the through hole 4241 in the second partition 4240, so that the water level of the water suction cavity 4210 rises, simultaneously enters the first gap 4221 from the opening of the water suction cover 4230, overflows into the second gap 4222 after filling the first gap 4221, so that the water level in the second gap 4222 gradually rises until the water level is higher than the top inlet of the water suction pipe 4220, the water flows into the water suction pipe 4220, the water suction effect of the water suction device 4200 is activated, and at this time, the water suction pipe 4220 starts to work. When the water sucking action is generated, the water level between the water sucking cylinder 4242 and the wall of the water sucking cavity 4210 can ensure that the water sucking action is continuously performed as long as the water level slightly exceeds the opening of the water sucking cover 4230, the water sucking cylinder 4242 is arranged to reduce the space occupied by the part of water ensuring the continuous water sucking action, when the water in each straight-through water discharging groove 1000 is discharged until the space is not sufficiently filled, the water sucking action is stopped, at the moment, the water staying in the space is reduced due to the reduction of the space, and therefore, the water sucking cylinder 4242 is arranged to be beneficial to discharging more water as far as possible. In this embodiment, the horizontal cross-sectional area from the water suction cylinder 4242 to the wall of the water suction cavity 4210, the horizontal cross-sectional area of the first gap 4221, and the pipe diameter of the water suction pipe are gradually reduced, so that after the water suction effect is generated, the water flow from each straight-through drainage channel 1000 has larger kinetic energy to flow towards the siphon deflector. Wherein the second partition 4240 may be supported by the jacket, the first partition 4130.

In order to stably cover the water absorption cover 4230 on the upper part of the water absorption pipe 4220, one or two of the following schemes can be adopted for fixing the water absorption cover 4230: firstly, as shown in fig. 5-6, the opening of the water-absorbing cylinder 4242 is provided with a plurality of first convex columns 4243 arranged at intervals, and the first convex columns 4243 support the water-absorbing cover 4230; secondly, as shown in fig. 5-7, the opening of the water absorption cover 4230 is provided with a plurality of second studs 4231 arranged at intervals, and the second studs 4231 are supported on the top of the second partition 4240.

The overall size of the joint body 4100 in this embodiment is equivalent to that of a conventional drainage channel joint, wherein the pipe diameter of the suction pipe 4220 is preferably 25-35 mm, and preferably about 30 mm; the height difference between the inlet and the outlet of the suction pipe 4220 is not less than 40mm, so that the condition of siphonage is met. In order to further increase the water flowing speed, as shown in fig. 5-8, the water absorber 4200 comprises a plurality of water absorbing tubes 4220, and the upper parts of all the water absorbing tubes 4220 are covered in a water absorbing cover 4230. When the aspirator 4200 is provided with a barrel 4242, all barrels 4220 pass through the barrel 4242. When a jacket is arranged in the converging chamber 4110, the lower parts of all the suction tubes 4220 pass through the jacket and then lead to the joint water outlet 4112.

In order to ensure that the water absorber 4200 has a water absorbing function, the water absorbing cavity 4210 needs to be communicated with the atmosphere, and after a drainage system is laid, geotechnical cloth and greening soil also need to be covered above the siphon deflector, so that the greening soil is prevented from being pressed into the water absorbing cavity 4210 due to gravity or pressure, the top of the water absorbing cavity 4210 is provided with a grid 4250 which has a function of supporting the greening soil, and meanwhile, water on the grid 4250 can flow into the water absorbing cavity 4210. The grating 4250 comprises a plurality of gratings, and preferably the cross section of each grating is L-shaped, so that the bearing capacity of the grating 4250 is improved. To further ensure the ventilation effect, as shown in fig. 5-9, a ventilation cylinder 4251 communicating the water suction cavity 4210 with the atmosphere is arranged in the grille 4250, and the ventilation cylinder 4251 plays a role of limiting the covering of the green soil.

In this embodiment, the siphon flow deflector is of a split design, as shown in fig. 5 to 10, and comprises a joint base 4101, a middle housing 4201 and a grid 4250 connected in sequence from bottom to top. The middle case 4201 is horizontally connected with the second partition 4240, and the middle case 4201 is divided into upper and lower parts by the second partition 4240; wherein the upper part is used as the joint base 4101 of the water absorber 4200, and the top part is connected with the grille 4250 to form the water absorbing cavity 4210; the lower part of the joint body 4100 is used as an upper cover of the joint body 4100, the joint body 4101 is covered on the joint base 4101 and forms the converging cavity 4110 together with the joint base 4101, the side walls of the joint base 4101 and the upper cover are both provided with a joint water inlet 4111 and a joint water outlet 4112, and the top of the joint water inlet 4111 or the joint water outlet 4112 of the upper cover is provided with a buckle structure 1020 for overlapping with the through water drainage tank 1000. When the siphon flow deflector is used, the connector base 4101 is placed on a roof, the straight-through drainage groove 1000 is inserted into the connector water inlet 4111 or the connector water outlet 4112 on the connector base 4101, and finally the middle shell 4201 is buckled, so that the straight-through drainage groove 1000 and the siphon flow deflector are stably connected together, and reverse operation is performed when the siphon flow deflector needs to be detached.

The siphon deflector of this embodiment may be a four-way siphon deflector, as shown in fig. 5-11, the side walls of the connector base 4101 and the middle housing 4201 are provided with three connector water inlets 4111 and one connector water outlet 4112; or as a three-way siphon deflector, as shown in fig. 5-12 and 5-13, the side walls of the joint base 4101 and the middle housing 4201 are provided with two joint water inlets 4111 and one joint water outlet 4112; it will be appreciated that in some cases, the flow deflector may be configured as a four-way siphon flow deflector with water entering from four sides, as shown in fig. 5-14, the connector base 4101 and the side wall of the intermediate housing 4201 are provided with four connector water inlets 4111, and the connector water outlets 4112 are provided at the bottom of the connector base 4101.

Obviously, the above embodiments of the present patent are only examples for clearly illustrating the technical solutions of the present patent, and are not intended to limit the specific embodiments of the present patent. Any modification, equivalent replacement or improvement made within the spirit and principle of the patent claims should be included in the protection scope of the patent claims.

Claims (10)

1. A rapid rainwater drainage system comprises a drainage plate, a drainage network and a permeable layer covering the drainage network, and is characterized in that the drainage network at least comprises: a cell region;

the siphon converter devices are distributed on the periphery of the unit area and connected through the drainage grooves, and discharge water outside the unit area;

the variable flow drainage devices are distributed on nodes of the drainage network in the unit area, are connected with one or more siphon variable flow devices through drainage grooves, and guide water at different positions in the unit area to the siphon variable flow devices in a directional manner;

the drainage plates are distributed among the drainage grooves, receive water permeating through the permeable layer in the unit area and guide the water into the drainage grooves;

the drainage tank comprises a tank body, a bottom plate, water outlets and connecting structures, wherein the opening of the tank body is downward, the bottom plate is horizontally arranged on two sides of the opening of the tank body, the water outlets are arranged at the bottom of the side surface of the tank body, the connecting structures are arranged at two longitudinal ends of the tank body, the drainage tank also comprises protruding parts, the protruding parts are arranged on the surface of the tank body at intervals, and the protruding parts are arched bulges;

the siphon converter and the converter drainage device are drainage tank joints; the siphon converter comprises a connector body and a water absorber, wherein the connector body is used for being connected with the drainage tank through a water inlet of the connector body, and the water absorber is used for generating siphon action and draining water through a water suction pipe of the water absorber; the variable-flow drainage device comprises a plurality of ports and a plurality of channels in a curve shape, wherein the ports are used for being connected with the drainage grooves, and the channels are used for guiding water flow to converge at an angle in a spiral distribution.

2. The system for quickly draining rainwater according to claim 1, wherein the distribution density of said siphon flow altering devices is from about 300 to about 800 square meters, within 1 meter.

3. The rapid rainwater drainage system according to claim 1, wherein said siphon deflector and variable flow drainage device are in a three-way or four-way structure with right angle connection, said drainage channel comprises a straight drainage channel and a flexible drainage channel, said drainage network comprises a rectangular grid structure formed by connecting siphon deflector, variable flow drainage device, straight drainage channel and drainage channel, and/or a T-shaped branch structure, and/or a cross-shaped branch structure, and a non-rectangular grid structure formed by connecting flexible drainage channels, and a drainage channel is provided to connect all siphon deflectors in said unit area.

4. The rapid rainwater drainage system according to claim 1, further comprising a plurality of air permeable observation pipes, wherein the air permeable observation pipes are communicated with the drainage channels and vertically penetrate through the water permeable layer to the ground, and 1 air permeable observation pipe is arranged in the air permeable observation pipe with a distribution density of 2000 square meters to 8000 square meters.

5. A rapid rainwater drainage system according to any of claims 1 to 4 further comprising a greening irrigation system in communication with the drainage network.

6. The rapid rainwater drainage system according to claim 5, wherein the drainage network is connected with the greening irrigation system through a rainwater observation well/reservoir, the connection position of the drainage network is higher than the bottom of the rainwater observation well/reservoir, the connection position of the greening irrigation system is not higher than the connection position of the drainage network, the drainage network is connected with the rainwater observation well/reservoir through a four-way siphon deflector, the position of a rainwater inlet of the four-way siphon deflector connected with the rainwater observation well is between 1/6~2/3 well depth/pool depth, the pipe diameter is smaller than the pipe diameter of a rainwater outlet of the greening irrigation system connected with the rainwater observation well/reservoir, and the pipe diameter ratio is between 0.2 and 0.7.

7. The rapid rainwater drainage system according to claim 5, wherein said greening irrigation system further comprises a rainwater lifting system.

8. A rapid rainwater drainage system according to any one of claims 1 to 4, wherein said variable flow drainage device comprises first to fourth ports for connection and first to fourth channels corresponding to the ports, the first to fourth channels being in communication with each other at a junction; the first channel to the third channel are in a curve shape trend, and the included angle between the first channel to the third channel and the fourth channel when the first channel to the third channel are converged with the fourth channel at the junction is an acute angle; the first port to the fourth port are provided with a connecting structure for connecting with a drainage channel.

9. The rapid rainwater drainage system according to claim 8, wherein said siphon deflector comprises a connector body and a water absorber disposed on said connector body; the joint body is provided with a converging cavity, the side wall of the joint body is provided with a water inlet communicated with the converging cavity, and the side wall or the bottom of the joint body is provided with a water outlet communicated with the converging cavity; the water absorber comprises a water absorbing cavity, a water absorbing pipe and a water absorbing cover; the water suction cavity is communicated with the confluence cavity and the atmosphere; the upper part of the water suction pipe is positioned in the water suction cavity and intersects with the horizontal plane, and the lower part of the water suction pipe extends to the bottom of the converging cavity and leads to the water outlet; the water absorption cover is arranged in the water absorption cavity, the opening of the water absorption cover faces downwards and covers the upper part of the water absorption pipe, a gap is reserved between the inner surface of the water absorption cover and the outer surface of the water absorption pipe, and the opening of the water absorption cover is communicated with the water absorption cavity.

10. The rapid rainwater drainage system according to claim 3, wherein the flexible drainage channel comprises a plurality of drainage channel units, and two ends of each drainage channel unit are provided with connecting structures; the drainage tank units are connected with each other through a connecting structure and can rotate mutually; and a plurality of sections of drainage groove units are connected one by one in sequence to form the flexible drainage groove.

Images