Environment-friendly drainage roof for sponge city

Abstract

The invention relates to the field of buildings, in particular to a sponge city environment-friendly drainage roof which comprises a bearing part, a water storage layer, a filter layer, a flow guide layer, a sponge layer, a screening layer, a vegetation layer and a drainage column, one side of the water storage layer is connected to the surface of the bearing part, and the other side of the water storage layer is provided with a water storage cavity for storing water; the vegetation layer, the sieving layer, the sponge layer, the diversion layer and the filtering layer are sequentially connected to the inner wall of the water storage cavity, one end of the drainage column is connected to the bottom wall of the water storage cavity, and the other end of the drainage column sequentially penetrates through the filtering layer and the diversion layer and is connected to the surface of the sponge layer; a drainage runner is formed in the inner wall, close to the filtering layer, of the water storage cavity, sequentially penetrates through the water storage layer and the bearing part and is connected with a sewer line. The drainage columns are arranged, so that the wettability of soil in the vegetation layer is guaranteed, plants on the vegetation layer are not prone to being dried up due to water shortage, water resources are utilized, waterlogging in cities is not prone to occurring, and precious water resources are fully utilized.

Description

Technical Field

[0001] This application relates to the field of architecture, and particularly to a sponge city environmental protection drainage roof. Background Art

[0002] The roof is usually located at the top of a building, serving functions such as shielding from wind and rain, heat insulation, and providing a safe shelter. The roof mainly consists of a load-bearing structure and a roofing layer. The load-bearing structure is responsible for supporting the entire weight of the roof and transferring it to the main structure of the building.

[0003] In the prior art, the drainage system of the roof often directly discharges water into the sewer through pipes, which not only easily causes urban waterlogging but also wastes precious water resources. Summary of the Invention

[0004] In order to improve the drainage system of the roof, this application provides a sponge city environmental protection drainage roof.

[0005] A sponge city environmental protection drainage roof provided by this application adopts the following technical solutions: A sponge city environmental protection drainage roof includes a load-bearing part, a water storage layer, a filtering layer, a diversion layer, a sponge layer, a sieving layer, a vegetation layer, and a drainage column. One side of the water storage layer is connected to the surface of the load-bearing part, and the other side of the water storage layer has a water storage cavity for storing water. The vegetation layer, sieving layer, sponge layer, diversion layer, and filtering layer are sequentially connected to the inner wall of the water storage cavity. Rainwater passes through the vegetation layer, sieving layer, sponge layer, diversion layer, and filtering layer in sequence and enters the water storage cavity. One end of the drainage column is connected to the bottom wall of the water storage cavity, and the other end of the drainage column sequentially penetrates the filtering layer and the diversion layer and is connected to the surface of the sponge layer. The drainage column guides the water flow in the water storage cavity towards the sponge layer. A drainage channel is opened on the inner wall of the water storage cavity near the filtering layer, and the drainage channel sequentially penetrates the water storage layer and the load-bearing part and is used for connecting to a sewer pipe.

[0006] By adopting the above technical solution, the vegetation layer, the sieving layer, the sponge layer, the diversion layer and the filtering layer are sequentially connected to the inner wall of the water storage cavity. When it rains, the rainwater passes through the vegetation layer, the sieving layer, the sponge layer, the diversion layer and the filtering layer in sequence and enters the water storage cavity, realizing the accumulation of rainwater in the water storage cavity. At the same time, one end of the drainage column is connected to the bottom wall of the water storage cavity, and the other end of the drainage column sequentially penetrates through the filtering layer and the diversion layer and is connected to the surface of the sponge layer. The drainage column guides the water flow in the water storage cavity to the sponge layer, so that the sponge layer stably accumulates an appropriate amount of water. The sponge layer supplies water to the vegetation layer through the sieving layer, ensuring the humidity of the soil in the vegetation layer, making the plants on the vegetation layer not easy to wither due to lack of water, realizing the utilization of water resources, making the city not easy to be waterlogged, and also making full use of precious water resources. Finally, when the liquid level in the water storage cavity continuously rises, the rainwater in the water storage cavity is discharged from the sewer pipe through the drainage channel, avoiding the occurrence of waterlogging in the vegetation layer, thereby ensuring the stable growth of the plants on the vegetation layer and reflecting the concept of environmental protection.

[0007] Optionally, the water storage layer is connected with an extrusion assembly. The extrusion assembly includes a cam. A rotation cavity for the cam to rotate is formed on the surface of the diversion layer. An avoidance cavity I is formed on the surface of the sponge layer facing the cam. An avoidance cavity II is formed on the surface of the filtering layer facing the cam. The cam surface rolls and contacts with the sieving layer surface.

[0008] By adopting the above technical solution, the cam has a large end and a small end. When the cam rotates on the inner wall of the rotation cavity, the large end of the cam abuts against the sieving layer surface, driving the sieving layer away from the sponge layer. When the small end of the cam abuts against the sieving layer surface, it drives the sieving layer to squeeze the sponge layer, forcing the rainwater in the sponge layer to be discharged, making it not easy for the sponge layer to accumulate excessive rainwater, thereby reducing the occurrence of waterlogging in the vegetation layer.

[0009] Optionally, the extrusion assembly further includes a transmission impeller, two synchronous pulleys and a synchronous belt used in cooperation with the synchronous pulleys. The transmission impeller is rotatably connected to the inner wall of the water storage cavity facing the drainage channel. The axis of the transmission impeller and the axis of the cam are parallel to each other. One of the synchronous pulleys is coaxially connected to the rotating shaft of the transmission impeller, and the other synchronous pulley is coaxially connected to the rotating shaft of the cam. The synchronous belt is tensioned and connected to the two synchronous pulleys.

[0010] By adopting the above technical solution, when the liquid level in the water storage cavity continuously rises and the rainwater in the water storage cavity flows into the sewer pipe through the drainage channel, the transmission impeller faces the opening of the drainage channel. The rainwater impacts the blades of the transmission impeller and drives the transmission impeller to rotate. The synchronous belt is tensioned and connected to the two synchronous pulleys, driving the cam to rotate on the inner wall of the rotation cavity, accelerating the discharge of the rainwater in the sponge layer, eliminating the need for an external power device to drive the cam to rotate, reducing energy consumption, and thus reflecting the concept of environmental protection.

[0011] Optionally, the water storage layer is connected to a heat dissipation device, which includes a pump body, a connecting plate and multiple water spray guns. A connecting cavity for the connecting plate to slide is opened on the surface of the water storage layer, and a plurality of connecting holes for the water spray guns to pass through are spaced apart on the surface of the connecting plate. A connecting hole is passed through the bottom of the water spray gun and is connected to the bottom wall of the connecting cavity. A water supply channel is opened on the surface of the connecting plate, and the water supply channel connects the multiple connecting holes. The water inlet end of the water spray gun is connected to the water supply channel, and the water outlet end of the water spray gun protrudes from the surface of the water storage layer. A water outlet channel is opened on the inner wall of the water storage cavity, and the water outlet channel passes through the surface of the water storage layer in a direction away from the load-bearing part. The pump body is connected to the surface of the water storage layer, and the water inlet end of the pump body is connected to the water outlet channel through a pipe, and the water outlet end of the pump body is connected to the water supply channel through a pipe.

[0012] By adopting the above technical scheme, when the temperature of the aquifer surface increases, the pump body drives the water in the water storage cavity to enter the inner cavity of the pump body through the water outlet channel and the pipeline in turn, the water in the pump body passes through the pipeline and the water supply channel in turn and enters the water inlet end of the water spray gun, the water in the water spray gun is discharged through the water outlet end of the water spray gun, and the water is sprayed on the surface of the aquifer and the surface of the vegetation layer, so as to cool the plants on the surface of the aquifer and the vegetation layer, so that the plants on the vegetation layer are not easily dried up due to high temperature, thereby ensuring the stable growth of the plants on the vegetation layer.

[0013] Optionally, the heat dissipation device also includes a plurality of opening and closing components, which correspond to and are connected to the water spray guns one by one, and include a fixing ring, a thermal expansion and contraction block, an embedding block and a cover plate, the fixing ring is connected to the surface of the water spray gun, one end of the thermal expansion and contraction block is connected to the surface of the fixing ring, the other end of the thermal expansion and contraction block is connected to the surface of the cover plate, the embedding block is connected to the surface of the cover plate facing the water outlet end of the water spray gun, and the embedding block is embedded in the water outlet end of the water spray gun and closes the water outlet end of the water spray gun.

[0014] By adopting the above technical solution, the embedded block is embedded in the water outlet of the water spray gun and closes the water outlet of the water spray gun. When the thermal expansion and contraction block heats up and expands, it drives the cover plate to slide in the direction away from the water outlet of the water spray gun, driving the embedded block to separate from the water outlet of the water spray gun, so that the sealing effect of the embedded block on the water outlet of the water spray gun disappears, and the water in the water spray gun is discharged from the water outlet of the water spray gun, thereby achieving precise cooling of the surface of the aquifer and reducing the waste of water resources, thereby embodying the concept of environmental protection.

[0015] Optionally, a guide surface is provided on the plate surface of the cover plate facing the water outlet end of the water spray gun, and the guide surface is arc-shaped, and the guide surface guides the water sprayed from the water outlet end of the water spray gun to spray onto the surface of the aquifer.

[0016] By adopting the above technical solution, the guide surface is in an arc shape, and the guide surface guides the water sprayed from the water outlet of the water spray gun to spray on the surface of the aquifer, increasing the spraying area on the surface of the aquifer, thereby improving the cooling efficiency of the surface of the aquifer.

[0017] Optionally, the opening and closing assembly further includes a receiving rod, an elastic member, and a connecting rope. One end of the elastic member in the direction of its elastic force is connected to the bottom wall of the connecting cavity, and the other end in the direction of its elastic force is connected to the plate surface of the connecting plate. The elastic member has an elastic force to drive the connecting plate to slide in the direction close to the connecting cavity, and there is a tendency for the inner wall of the water spray gun to tightly abut against the inner wall of the connecting hole and separate the water supply channel and the water inlet end of the water spray gun. One end of the receiving rod is connected to the plate surface of the connecting plate, the other end of the receiving rod is connected to one end of the connecting rope, and the other end of the connecting rope is connected to the plate surface of the cover plate. The connecting rope between the receiving rod and the cover plate is in a taut state. When the cover plate slides in the direction away from the water outlet end of the water spray gun, it drives the connecting plate to slide on the inner wall of the connecting cavity, and the water supply channel communicates with the water inlet end of the water spray gun.

[0018] By adopting the above technical solution, when the thermal expansion and contraction block heats up and expands and drives the cover plate to slide in the direction away from the water outlet end of the water spray gun, the connecting rope between the cover plate and the receiving rod is in a taut state, driving the connecting plate to slide on the inner wall of the connecting cavity, and the water supply channel communicates with the water inlet end of the water spray gun, realizing the directional connection of the water inlet end of the water spray gun and the water supply channel.

[0019] Optionally, the opening and closing assembly further includes a first contact switch, which is connected to the inner wall of the connecting cavity and electrically connected to the pump body. When the connecting plate slides in the direction away from the connecting cavity, the first contact switch abuts against the connecting plate and conducts, and the pump body is powered on and operates.

[0020] By adopting the above technical solution, when the thermal expansion and contraction block heats up and expands and drives the connecting plate to slide in the direction away from the connecting cavity, the first contact switch abuts against the connecting plate and conducts, and the pump body is powered on and operates. The pump body does not need to keep running all the time, reducing energy consumption and realizing the directional start of the pump body.

[0021] Optionally, the heat dissipation device further includes a transmission assembly, which includes a power impeller, two transmission wheels, and a transmission belt used in cooperation with the transmission wheels. A power cavity for the power impeller to rotate is provided on the inner wall of the water outlet channel. The axis of the power impeller and the axis of the cam are parallel to each other. One of the transmission wheels is coaxially connected to the rotating shaft of the power impeller, and the other transmission wheel is coaxially connected to the rotating shaft of the transmission impeller. The transmission belt is tensioned and connected to the two transmission wheels.

[0022] By adopting the above technical solution, when the pump body drives the water in the water storage cavity to sequentially enter the inner cavity of the pump body through the water outlet channel and the pipeline, the water in the water outlet channel impacts the blades of the power impeller and drives the power impeller to rotate. The transmission belt is tensioned and connected to the two transmission wheels, driving the transmission impeller to rotate in the water storage cavity and driving the cam to rotate. There is no need for an external power device to drive the cam to rotate, reducing energy consumption, thereby reflecting the concept of energy conservation.

[0023] Optionally, a warning component is connected to the water storage layer. The warning component includes a float, a warning horn, and a contact switch II. A warning cavity for the float to slide is formed in the inner wall of the water storage cavity. The warning horn is connected to the surface of the water storage layer, and the contact switch II is connected to the inner wall of the warning cavity close to the load-bearing part. The warning horn is electrically connected to the contact switch II. When the liquid level in the water storage cavity drops, the contact switch II abuts against the float and conducts, and the warning horn is powered on to emit a sound.

[0024] By adopting the above technical solution, when the liquid level in the water storage cavity continuously drops, the float slides along the inner wall of the power cavity towards the direction close to the contact switch II. The contact switch II abuts against the float and conducts, and the warning horn is powered on to emit a sound, thereby warning the staff to store water in the water storage cavity in time and reducing the occurrence of the pump body idling.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The arrangement of the drainage columns ensures the humidity of the soil in the vegetation layer, making the plants on the vegetation layer not easily wither due to lack of water, realizing the utilization of water resources, preventing urban waterlogging, and also making full use of precious water resources; 2. The arrangement of the cam drives the rainwater in the sponge layer to drain, preventing the sponge layer from accumulating excessive rainwater, thereby reducing the occurrence of waterlogging in the vegetation layer; 3. The arrangement of the transmission impeller, synchronous pulley, and synchronous belt drives the cam to rotate on the inner wall of the rotating cavity, accelerating the drainage of rainwater in the sponge layer. There is no need for an external power device to drive the cam to rotate, reducing energy consumption, and thus reflecting the concept of environmental protection. Description of the Drawings

[0026] Figure 1 is the overall structural schematic diagram in the embodiment of the present application.

[0027] Figure 2 is the partial sectional view in the embodiment of the present application, mainly showing the warning component.

[0028] Figure 3 is the partial sectional view in the embodiment of the present application, mainly showing the transmission component.

[0029] Figure 4 is the partial sectional view in the embodiment of the present application, mainly showing the opening and closing component.

[0030] Figure 5 is Figure 4 the enlarged view of part A in

[0031] Description of reference numerals: 1, load-bearing part; 2, water storage layer; 21, water storage cavity; 22, connection cavity; 23, water outlet flow channel; 24, warning cavity; 25, drainage flow channel; 26, power cavity; 3, filter layer; 31, avoidance cavity two; 4, diversion layer; 41, rotation cavity; 5, sponge layer; 51, avoidance cavity one; 6, sieve layer; 7, vegetation layer; 8, drainage column; 9, extrusion assembly; 91, cam; 92, drive impeller; 93, synchronous pulley; 94, synchronous belt; 10, heat dissipation device; 101, pump body; 102, connecting plate; 1021, connection hole; 1022, water supply flow channel; 103, drive assembly; 1031, power impeller; 1032, drive wheel; 1033, drive belt; 104, opening and closing assembly; 1041, fixing ring; 1042, thermal expansion and contraction block; 1043, inlay block; 1044, cover plate; 1045, receiving rod; 1046, elastic member; 1047, contact switch one; 1048, connecting rope; 1049, guiding surface; 105, water spray gun; 11, warning assembly; 111, float; 112, warning horn; 113, contact switch two. Detailed implementation manners

[0032] The following will Figures 1-5 describe the present application in further detail with reference to the accompanying drawings.

[0033] An embodiment of the present application discloses an environmentally friendly drainage roof for a sponge city. Referring to Figure 1 and Figure 2 , an environmentally friendly drainage roof for a sponge city includes a load-bearing part 1, a water storage layer 2, a filter layer 3, a diversion layer 4, a sponge layer 5, a sieve layer 6, a vegetation layer 7, and a drainage column 8. The bottom of the load-bearing part 1 is for the installation of a building body. The bottom of the water storage layer 2 is installed on the top of the load-bearing part 1. A water storage cavity 21 for water storage is opened at the top of the water storage layer 2. The vegetation layer 7, the sieve layer 6, the sponge layer 5, the diversion layer 4, and the filter layer 3 are sequentially installed on the inner wall of the water storage cavity 21. When it rains, rainwater sequentially passes through the vegetation layer 7, the sieve layer 6, the sponge layer 5, the diversion layer 4, and the filter layer 3 and enters the water storage cavity 21, realizing the collection of rainwater. A drainage flow channel 25 is opened on the inner wall of the water storage cavity 21 close to the filter layer 3. The drainage flow channel 25 sequentially penetrates through the water storage layer 2 and the load-bearing part 1 and is for connecting a sewer pipe, so that the water overflowing from the water storage cavity 21 flows into the sewer pipe through the drainage flow channel 25, avoiding waterlogging in the vegetation layer 7.

[0034] Referring to Figure 2, the number of the drainage columns 8 can be one, two or more. In the embodiment of the present application, the number of the drainage columns 8 is multiple. One ends of the multiple drainage columns 8 are installed on the bottom wall of the water storage cavity 21 at intervals, and the other ends of the multiple drainage columns 8 sequentially penetrate through the filter layer 3 and the diversion layer 4 and are installed on the surface of the sponge layer 5. The arrangement direction of the drainage columns 8 is parallel to the length direction of the water storage layer 2. The drainage columns 8 guide the water flow in the water storage cavity 21 to the sponge layer 5, so that the sponge layer 5 stably accumulates an appropriate amount of water, keeps the soil in the vegetation layer 7 moist, ensures the stable growth of the plants on the vegetation layer 7, makes full use of water resources, and reduces the occurrence of urban waterlogging.

[0035] Referring to Figure 2 , an extrusion assembly 9 is installed on the water storage layer 2. The extrusion assembly 9 can drive the sifting layer 6 to extrude the sponge layer 5; the extrusion assembly 9 includes a cam 91, a transmission impeller 92, two synchronous pulleys 93 and a synchronous belt 94 used in cooperation with the synchronous pulleys 93. A rotation cavity 41 for the rotation of the cam 91 is formed on the surface of the diversion layer 4. The axis of the cam 91 is parallel to the width direction of the water storage layer 2. The depth direction of the rotation cavity 41 penetrates through both sides of the diversion layer 4. An avoidance cavity one 51 is formed on the surface of the sponge layer 5 facing the cam 91. The depth direction of the avoidance cavity one 51 penetrates through both sides of the sponge layer 5 and communicates with the rotation cavity 41. An avoidance cavity two 31 is formed on the surface of the filter layer 3 facing the cam 91. The depth direction of the avoidance cavity two 31 penetrates through both sides of the filter layer 3 and communicates with the rotation cavity 41. The cam surface of the cam 91 is in rolling contact with the surface of the sifting layer 6.

[0036] Referring to Figure 2 , the transmission impeller 92 is rotatably connected to the inner wall of the water storage cavity 21 facing the drainage channel 25. The axis of the transmission impeller 92 is parallel to the axis of the cam 91. One of the synchronous pulleys 93 is coaxially fixed on the rotating shaft of the transmission impeller 92, and the other synchronous pulley 93 is coaxially fixed on the rotating shaft of the cam 91. The synchronous belt 94 is tensioned to connect the two synchronous pulleys 93; when the rainwater in the water storage cavity 21 enters the sewer through the drainage channel 25, the rainwater impacts the blades of the transmission impeller 92 to drive the transmission impeller 92 to rotate. The synchronous belt 94 tensions the two synchronous pulleys 93 and drives the cam 91 to rotate on the inner wall of the rotation cavity 41. The cam 91 has a large end and a small end. When the small end of the cam 91 abuts against the surface of the sifting layer 6, the sifting layer 6 extrudes the sponge layer 5 and discharges the water in the sponge layer 5. The water in the sponge layer 5 passes through the diversion layer 4 and the filter layer 3 in turn under the influence of its own gravity and enters the water storage cavity 21, accelerating the accumulation of the rainwater in the water storage cavity 21. When the large end of the cam 91 abuts against the surface of the sifting layer 6, the sifting layer 6 slides away from the sponge layer 5, so that the extrusion effect of the sifting layer 6 on the sponge layer 5 disappears, realizing the reciprocating extrusion of the sifting layer 6 on the sponge layer 5, thereby improving the efficiency of accumulating the rainwater in the water storage cavity 21.

[0037] Referring to Figure 3 and Figure 4, a heat dissipation device 10 is installed in the aquifer 2. The heat dissipation device 10 can cool the surface of the aquifer 2. The number of the heat dissipation devices 10 can be one, two or more. In the embodiment of the present application, the number of the heat dissipation devices 10 is two. The two heat dissipation devices 10 are installed at intervals at both ends of the aquifer 2 in the length direction. The heat dissipation device 10 includes a pump body 101, a connecting plate 102, a transmission assembly 103, a plurality of opening and closing assemblies 104 and a plurality of water spray guns 105. A connecting cavity 22 for the connecting plate 102 to slide is formed on the top surface of the aquifer 2. The sliding direction of the connecting plate 102 is parallel to the height direction of the aquifer 2. A plurality of connecting holes 1021 for the water spray guns 105 to pass through are formed at intervals on the plate surface of the connecting plate 102. The arrangement direction of the connecting holes 1021 is parallel to the width direction of the aquifer 2. The axis of the connecting hole 1021 is parallel to the height direction of the aquifer 2. The connecting hole 1021 penetrates through both sides of the connecting plate 102 along its own axis.

[0038] Refer to Figure 3 and Figure 4 , the water spray guns 105 and the connecting holes 1021 are in one-to-one correspondence. The bottom of the water spray gun 105 passes through the connecting hole 1021 and is installed on the bottom wall of the connecting cavity 22. A water flow channel 1022 is formed on the plate surface of the connecting plate 102 facing away from the connecting cavity 22. The water flow channel 1022 communicates with a plurality of connecting holes 1021, and the water inlet end of the water spray gun 105 communicates with the water flow channel 1022. An outlet water flow channel 23 is formed on the inner wall of the water storage cavity 21 close to the load-bearing part 1. The outlet water flow channel 23 penetrates through the top surface of the aquifer 2 in a direction away from the load-bearing part 1. The pump body 101 is fixed on the top surface of the aquifer 2 by bolts. The water inlet end of the pump body 101 is communicated with the outlet water flow channel 23 through a pipeline. The water outlet end of the pump body 101 is communicated with the water flow channel 1022 through a pipeline. The pump body 101 drives the water in the water storage cavity 21 to sequentially enter the inner cavity of the pump body 101 through the outlet water flow channel 23 and the pipeline. The water in the pump body 101 enters the inner cavity of the water spray gun 105 through the pipeline and the water flow channel 1022. The water in the water spray gun 105 is sprayed on the surface of the aquifer 2 through the water outlet end of the water spray gun 105. The water is in full contact with the surface of the aquifer 2 and heat exchange is carried out to realize the cooling of the aquifer 2.

[0039] Refer to Figure 4 and Figure 5, the opening and closing components 104 and the water spray guns 105 are installed in a one-to-one correspondence, and the opening and closing components 104 can control the opening and closing of the water outlet ends of the water spray guns 105. The opening and closing components 104 include a fixing ring 1041, a thermal expansion and contraction block 1042, an insertion block 1043, a cover plate 1044, a receiving rod 1045, an elastic member 1046, a first contact switch 1047, and a connecting rope 1048. The elastic member 1046 can be a compression spring or a tension spring. In the embodiment of the present application, the elastic member 1046 is a compression spring and has a certain deformation ability. One end in the direction of the elastic force of the elastic member 1046 is connected to the bottom wall of the connecting gun, and the other end in the direction of the elastic force of the elastic member 1046 is connected to the plate surface of the connecting plate 102. The elastic member 1046 has an elastic force to drive the connecting plate 102 to slide in the direction close to the connecting cavity 22, and the inner wall of the water spray gun 105 abuts against the inner wall of the connecting hole 1021 and has a tendency to separate the water supply channel 1022 and the water inlet end of the water spray gun 105.

[0040] Refer to Figure 4 and Figure 5 , the fixing ring 1041 is coaxially fixed on the outer peripheral surface of the water spray gun 105. The material of the thermal expansion and contraction block 1042 can be rubber or nylon. In the embodiment of the present application, the material of the thermal expansion and contraction block 1042 is nylon and has a certain coefficient of thermal expansion. One end of the thermal expansion and contraction block 1042 is fixed on the surface of the fixing ring 1041, and the other end of the thermal expansion and contraction block 1042 is fixed on the plate surface of the cover plate 1044. The plate surface of the cover plate 1044 facing the water outlet end of the water spray gun 105 is provided with a guiding surface 1049, and the guiding surface 1049 is arc-shaped. The guiding surface 1049 guides the water sprayed from the water outlet end of the water spray gun 105 to spray on the surface of the water storage layer 2, increasing the spraying area on the surface of the water storage layer 2, thereby improving the cooling efficiency of the water storage layer 2.

[0041] Refer to Figure 4 and Figure 5 , the material of the insertion block 1043 can be rubber or silica gel. In the embodiment of the present application, the material of the insertion block 1043 is rubber and has a certain deformation ability. One end of the insertion block 1043 is fixed on the surface of the guiding surface 1049 facing the water outlet end of the water spray gun 105, and the other end of the insertion block 1043 is inserted into the water outlet end of the water spray gun 105 and closes the water outlet end of the water spray gun 105; one end of the receiving rod 1045 is fixed on the plate surface of the connecting plate 102, the other end of the receiving rod 1045 is fixed on the end of the connecting rope 1048, and the other end of the connecting rope 1048 is fixed on the plate surface of the cover plate 1044. The connecting rope 1048 between the cover plate 1044 and the receiving rod 1045 remains in a taut state.

[0042] Refer to Figure 4 and Figure 5, the first contact switch 1047 is installed on the inner wall of the connection cavity 22. The first contact switch 1047 is located on the inner wall of the connecting plate 102 away from the load-bearing part 1, and the first contact switch 1047 is electrically connected to the pump body 101. When the thermal expansion and contraction block 1042 heats up and expands, it drives the cover body to slide in a direction away from the water outlet end of the water spray gun 105. The insertion block 1043 disengages from the water outlet end of the water spray gun 105, causing the sealing effect of the insertion block 1043 on the water outlet end of the water spray gun 105 to disappear. The connecting rope 1048 receives the power of the cover body and drives the receiving rod 1045 to slide in a direction away from the connection cavity 22. The end of the receiving rod 1045 is connected to the plate surface of the connecting plate 102, driving the connecting plate 102 to slide in a direction closer to the first contact switch 1047, driving the outer wall of the water spray gun 105 to slide into contact with the inner wall of the connection hole 1021, enabling the water supply channel 1022 to communicate with the water inlet end of the water spray gun 105. The first contact switch 1047 abuts against the connecting plate 102 and conducts, causing the pump body 101 to be powered on and operate. The pump body 101 drives the water in the water storage cavity 21 to sequentially pass through the water outlet channel 23 and the pipeline and enter the inner cavity of the pump body 101. The water in the pump body 101 enters the inner cavity of the water spray gun 105 through the pipeline and the water supply channel 1022. The water in the water spray gun 105 is sprayed on the surface of the water storage layer 2 through the water outlet end of the water spray gun 105. The water comes into full contact with the surface of the water storage layer 2 and conducts heat exchange, achieving local and precise cooling of the surface of the water storage layer 2.

[0043] Refer to Figure 2 and Figure 3 , the transmission component 103 can drive the cam 91 to rotate. The transmission component 103 includes a power impeller 1031, two transmission wheels 1032, and a transmission belt 1033 used in conjunction with the transmission wheels 1032. A power cavity 26 for the rotation of the power impeller 1031 is provided on the inner wall of the water outlet channel 23. The axis of the power impeller 1031 and the axis of the cam 91 are parallel to each other. One of the transmission wheels 1032 is coaxially connected to the rotating shaft of the power impeller 1031, and the other transmission wheel 1032 is coaxially connected to the rotating shaft of the transmission impeller 92. The transmission belt 1033 is tensioned and connected to the two transmission wheels 1032. When the pump body 101 drives the water in the water storage cavity 21 to sequentially pass through the water outlet channel 23 and the pipeline and enter the pump body 101, the water impacts the blades of the power impeller 1031 and drives the power impeller 1031 to rotate. The transmission belt 1033 is tensioned and connected to the two transmission wheels 1032, driving the transmission impeller 92 to rotate. The synchronous belt 94 is tensioned and connected to the two synchronous wheels 93, driving the cam 91 to rotate on the inner wall of the rotation cavity 41. There is no need for an external power device to drive the cam 91 to rotate, reducing energy consumption, thereby reflecting the concept of environmental protection.

[0044] Refer to Figure 1 and Figure 2, a warning component 11 is installed in the aquifer 2. The warning component 11 can warn about the amount of water in the water storage cavity 21. The warning component 11 includes a float 111, a warning horn 112, and a contact switch II 113. A warning cavity 24 for the float 111 to slide is opened on the inner wall of the water storage cavity 21 near the load-bearing part 1. The sliding direction of the float 111 is parallel to the height direction of the aquifer 2. The water storage cavity 21 is located on the side of the water outlet channel 23 away from the load-bearing part 1. The warning horn 112 is fixed to the top surface of the aquifer 2 by bolts. The contact switch II 113 is installed on the inner wall of the warning cavity 24 near the water outlet channel 23. The contact switch II 113 is electrically connected to the warning horn 112. When the liquid level in the water storage cavity 21 continuously decreases, the float 111 slides along the inner wall of the warning cavity 24 towards the direction close to the contact switch II 113. The contact switch II 113 abuts against the float 111 and conducts, and the warning horn 112 is powered on and emits a sound, thereby warning the user to replenish water into the water storage cavity 21 in time and reducing the occurrence of the pump body 101 idling.

[0045] The implementation principle of a sponge city environmental protection drainage roof in an embodiment of the present application is as follows: During rainfall, rainwater successively passes through the vegetation layer 7, the sieve layer 6, the sponge layer 5, the diversion layer 4, and the filter layer 3 and enters the water storage cavity 21, realizing the accumulation of rainwater in the water storage cavity 21. At the same time, one end of the drainage column 8 is connected to the bottom wall of the water storage cavity 21, and the other end of the drainage column 8 successively penetrates through the filter layer 3 and the diversion layer 4 and is connected to the surface of the sponge layer 5. The drainage column 8 guides the water in the water storage cavity 21 to the sponge layer 5, enabling the sponge layer 5 to stably accumulate an appropriate amount of water. The sponge layer 5 supplies water to the vegetation layer 7 through the sieve layer 6, ensuring the humidity of the soil in the vegetation layer 7, making the plants on the vegetation layer 7 not easily dry out due to lack of water, realizing the utilization of water resources, making the city not easily waterlogged, and also making full use of precious water resources. Finally, when the liquid level in the water storage cavity 21 continuously rises, the rainwater in the water storage cavity 21 is discharged from the water outlet pipe through the drainage channel 25, avoiding the occurrence of waterlogging in the vegetation layer 7, thereby ensuring the stable growth of the plants on the vegetation layer 7 and reflecting the concept of environmental protection.

[0046] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A sponge city environmentally friendly drainage roof, characterized by: The invention comprises a load-bearing part (1), a water storage layer (2), a filtering layer (3), a guide layer (4), a sponge layer (5), a sieving layer (6), a vegetation layer (7) and a drainage column (8); one side of the water storage layer (2) is connected to the surface of the load-bearing part (1); the other side of the water storage layer (2) has a water storage cavity (21) for storing water; the vegetation layer (7), the sieving layer (6), the sponge layer (5), the guide layer (4) and the filtration layer (3) are connected to the inner wall of the water storage cavity (21) in sequence; rainwater passes through the vegetation layer (7), the sieving layer (6), the sponge layer (5), the guide layer (4) and the filtration layer (3) in sequence. The water flows through the guide layer (4) and the filter layer (3) and enters the water storage chamber (21); one end of the drainage column (8) is connected to the bottom wall of the water storage chamber (21); the other end of the drainage column (8) passes through the filter layer (3) and the guide layer (4) in sequence and is connected to the surface of the sponge layer (5); the drainage column (8) guides the water in the water storage chamber (21) to flow toward the sponge layer (5); a drainage channel (25) is provided on the inner wall of the water storage chamber (21) near the filter layer (3); the drainage channel (25) passes through the water storage layer (2) and the load-bearing part (1) in sequence and is connected to a sewer pipe.

2. The environmentally friendly sponge city drainage roof according to claim 1 is characterized by: The water storage layer (2) is connected to an extrusion assembly (9), the extrusion assembly (9) comprising a cam (91), a rotating chamber (41) for the cam (91) to rotate is provided on the surface of the guide layer (4), a first avoidance chamber (51) is provided on the surface of the sponge layer (5) facing the cam (91), and a second avoidance chamber (31) is provided on the surface of the filter layer (3) facing the cam (91), and the wheel surface of the cam (91) is in rolling contact with the surface of the screening layer (6).

3. The environmentally friendly sponge city drainage roof according to claim 2 is characterized by: The extrusion assembly (9) further comprises a transmission impeller (92), two synchronous wheels (93) and a synchronous belt (94) used in combination with the synchronous wheel (93); the transmission impeller (92) is rotatably connected to the inner wall of the water storage chamber (21) facing the drainage channel (25); the axis of the transmission impeller (92) and the axis of the cam (91) are parallel to each other; one of the synchronous wheels (93) is coaxially connected to the rotating shaft of the transmission impeller (92); the other synchronous wheel (93) is coaxially connected to the rotating shaft of the cam (91); and the synchronous belt (94) is tensioned to connect the two synchronous wheels (93).

4. The environmentally friendly drainage roof for sponge city according to claim 2 is characterized by: The water storage layer (2) is connected to a heat dissipation device (10), the heat dissipation device (10) comprising a pump body (101), a connecting plate (102) and a plurality of water spray guns (105); a connecting cavity (22) for the connecting plate (102) to slide is provided on the surface of the water storage layer (2); a plurality of connecting holes (1021) for the water spray guns (105) to penetrate are provided at intervals on the surface of the connecting plate (102); a connecting hole (1021) is provided at the bottom of the water spray gun (105) and is connected to the bottom wall of the connecting cavity (22); a water supply flow channel (1022) is provided on the surface of the connecting plate (102); (1022) is connected to a plurality of connection holes (1021); the water inlet end of the water spray gun (105) is connected to the water supply channel (1022); the water outlet end of the water spray gun (105) protrudes from the surface of the aquifer (2); the inner wall of the water storage chamber (21) is provided with a water outlet channel (23); the water outlet channel (23) penetrates the surface of the aquifer (2) in a direction away from the load-bearing part (1); the pump body (101) is connected to the surface of the aquifer (2); the water inlet end of the pump body (101) is connected to the water outlet channel (23) via a pipeline; and the water outlet end of the pump body (101) is connected to the water supply channel (1022) via a pipeline.

5. The environmentally friendly sponge city drainage roof according to claim 4 is characterized by: The heat dissipation device (10) further comprises a plurality of opening and closing components (104), wherein the opening and closing components (104) correspond to and are connected to the water spray gun (105) one by one, and the opening and closing components (104) comprise a fixing ring (1041), a heat expansion and cold contraction block (1042), an insert block (1043) and a cover plate (1044), wherein the fixing ring (1041) is connected to the surface of the water spray gun (105), one end of the heat expansion and cold contraction block (1042) is connected to the surface of the fixing ring (1041), the other end of the heat expansion and cold contraction block (1042) is connected to the surface of the cover plate (1044), the insert block (1043) is connected to the surface of the cover plate (1044) facing the water outlet end of the water spray gun (105), and the insert block (1043) is embedded in the water outlet end of the water spray gun (105) and seals the water outlet end of the water spray gun (105).

6. The environmentally friendly sponge city drainage roof according to claim 5 is characterized by: The plate surface of the cover plate (1044) facing the water outlet of the water spray gun (105) is provided with a guide surface (1049), the guide surface (1049) is in an arc shape, and the guide surface (1049) guides the water sprayed from the water outlet of the water spray gun (105) to be sprayed onto the surface of the aquifer (2).

7. The environmentally friendly sponge city drainage roof according to claim 5 is characterized by: The opening and closing assembly (104) further comprises a receiving rod (1045), an elastic member (1046) and a connecting rope (1048); one end of the elastic member (1046) in the elastic direction is connected to the bottom wall of the connecting cavity (22); the other end of the elastic member (1046) in the elastic direction is connected to the surface of the connecting plate (102); the elastic member (1046) has an elastic force that drives the connecting plate (102) to slide in a direction close to the connecting cavity (22); and the inner wall of the water spray gun (105) is pressed against the inner wall of the connecting hole (1021) and separates the water supply channel (1022) and the water inlet end of the water spray gun (105); One end of the receiving rod (1045) is connected to the surface of the connecting plate (102), and the other end of the receiving rod (1045) is connected to one end of a connecting rope (1048), and the other end of the connecting rope (1048) is connected to the surface of the cover plate (1044). The connecting rope (1048) between the receiving rod (1045) and the cover plate (1044) is in a taut state. When the cover plate (1044) slides in a direction away from the water outlet of the water spray gun (105), the connecting plate (102) is driven to slide on the inner wall of the connecting cavity (22), and the water supply channel (1022) is connected to the water inlet of the water spray gun (105).

8. The environmentally friendly drainage roof for sponge city according to claim 7 is characterized by: The opening and closing assembly (104) further comprises a contact switch (1047), wherein the contact switch (1047) is connected to the inner wall of the connecting cavity (22), and the contact switch (1047) is electrically connected to the pump body (101). When the connecting plate (102) slides in a direction away from the connecting cavity (22), the contact switch (1047) abuts against the connecting plate (102) and is turned on, so that the pump body (101) is electrically operated.

9. The environmentally friendly sponge city drainage roof according to claim 4, characterized in that: The heat dissipation device (10) further comprises a transmission assembly (103), wherein the transmission assembly (103) comprises a power impeller (1031), two transmission wheels (1032) and a transmission belt (1033) used in combination with the transmission wheels (1032); the inner wall of the water outlet channel (23) is provided with a power cavity (26) for the power impeller (1031) to rotate; the axis of the power impeller (1031) and the axis of the cam (91) are parallel to each other; one of the transmission wheels (1032) is coaxially connected to the rotation axis of the power impeller (1031); the other transmission wheel (1032) is coaxially connected to the rotation axis of the transmission impeller (92); and the transmission belt (1033) is tensioned to connect the two transmission wheels (1032).

10. The environmentally friendly sponge city drainage roof according to claim 4, characterized in that: The water storage layer (2) is connected to a warning component (11), the warning component (11) comprising a float (111), a warning speaker (112) and a second contact switch (113); the inner wall of the water storage chamber (21) is provided with a warning chamber (24) for the float (111) to slide; the warning speaker (112) is connected to the surface of the water storage layer (2); the second contact switch (113) is connected to the inner wall of the warning chamber (24) close to the load-bearing part (1); the warning speaker (112) is electrically connected to the second contact switch (113); when the liquid level in the water storage chamber (21) decreases, the second contact switch (113) abuts against the float (111) and is turned on, and the warning speaker (112) is energized to emit a sound.

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