A water storage module for greening sloped roofs

Abstract

The present invention provides a water storage module for greening a sloped roof, belonging to the technical field of three-dimensional greening of buildings, comprising a heat-insulating water storage tank, a water-absorbing hollow block material, and a retaining water guide plate, wherein the water-absorbing hollow block material is arranged in the heat-insulating water storage tank; the retaining water guide plate is clamped between the inner side wall of the heat-insulating water storage tank and the top edge of the water-absorbing hollow block material, and the bottom end is stuck in a positioning groove at the bottom of the heat-insulating water storage tank. The present invention can simultaneously meet the two major requirements of storing a large amount of rainwater and preventing sliding required for greening on a sloped roof, and the heat-insulating water storage tank is made of EPS foam plastic, and the tank is provided with a tank water hole and a positioning groove, which simplifies the installation operation of the retaining anti-slip structure and the irrigation system.

Description

Technical Field

[0001] The invention relates to the technical field of three-dimensional building greening, and in particular to a water storage module for greening a sloped roof. Background Art

[0002] In the existing slope roof greening, drainage and storage layers, isolation layers, filtration layers, anti-skid structures, etc. must be set up. Not only are the structures complex and expensive, but also due to the small amount of water storage, it is impossible to achieve year-round irrigation and maintenance-free. In addition, the anti-skid components need to be welded with the Φ12 steel bars embedded in the floor slab, which poses the risk of rust and leakage.

[0003] The invention with patent application number 201210529806.6 discloses a low-maintenance ecological slope roof greening method, which solves the problem of easy soil loss on slope roofs and reduces the greening maintenance cost. However, it is still impossible to store a large amount of rainwater to achieve year-round irrigation-free. In addition, the structural layers such as drainage layers, water retention layers, filter layers, and anti-slip components commonly used in existing slope roof greening have not been saved. Therefore, since the disclosure of this patent, slope roof greening is still difficult to popularize.

[0004] It can be seen that the prior art has at least the following defects: the existing sloped roof greening structure is complex and expensive, and due to its small water storage capacity, it is impossible to achieve year-round irrigation and maintenance-free.

[0005] Therefore, it is necessary to provide a technical means to solve the above defects. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects of the prior art and provide a water storage module for sloped roof greening to solve the problems in the prior art that the existing sloped roof greening has a complex structure and high cost, and cannot achieve year-round irrigation and maintenance-free due to its small water storage capacity.

[0007] The present invention is implemented as follows: a water storage module for greening a sloped roof, comprising:

[0008] An insulated water storage tank for storing water;

[0009] The water-absorbing hollow block material is used to carry the planting soil and transfer the moisture in the heat-insulating water storage box to the planting soil; the water-absorbing hollow block material is arranged in the heat-insulating water storage box;

[0010] A soil retaining and water guiding plate is used to prevent the planting soil from sliding and to guide rainwater into the thermal insulation water storage tank; the soil retaining and water guiding plate is clamped between the inner side wall of the thermal insulation water storage tank and the top edge of the water-absorbing hollow block material, and the bottom end is stuck in the positioning groove at the bottom of the thermal insulation water storage tank.

[0011] Preferably, the four edges of the top surface of the water-absorbing hollow block are provided with raised convex edges;

[0012] Three of the four convex edges of the water-absorbing hollow block material are in close contact with the inner wall of the heat-insulating water storage tank;

[0013] The soil retaining and water guiding plate is clamped between the inner side wall of the heat-insulating water storage box body and the fourth convex edge of the water-absorbing hollow block material.

[0014] Preferably, the heat-insulating water storage box body comprises a box bottom plate and a side plate arranged around the box bottom plate, and the side plate is provided with a left box body water through hole and a right box body water through hole.

[0015] Preferably, a positioning groove is provided on the box bottom plate corresponding to the soil retaining and water guide plate, and the bottom end of the soil retaining and water guide plate is arranged in the positioning groove.

[0016] Preferably, the bottom surface of the water-absorbing hollow block is inwardly recessed to form an opening, and the opening is opposite to the bottom plate.

[0017] Preferably, a gap of a preset distance is formed between the outer side wall of the water-absorbing hollow block and the inner side wall of the heat-insulating water storage tank.

[0018] Preferably, the soil retaining and water guiding plate is a plastic plate having a hollow cavity inside, and small water holes or narrow water slits communicating with the hollow cavity are evenly provided on the plate surface of the soil retaining and water guiding plate.

[0019] Preferably, a large water-passing hole is provided on the soil retaining and water-guiding plate at a position corresponding to the water-passing hole of the box body.

[0020] Preferably, the top surface of the water-absorbing hollow block is a flat surface, and the top surface of the water-absorbing hollow block is flush with the top end of the side plate.

[0021] The water storage module for greening a sloped roof provided in the present application has the following beneficial effects:

[0022] (1) The present invention is a water storage and water supply and anti-skid device specially designed for roof greening on sloping roofs. It can simultaneously meet the two major requirements of storing a large amount of rainwater and preventing sliding required for greening on sloping roofs. EPS foam plastic is used to make a heat-insulating water storage box, and the box is provided with a box water hole and a positioning groove, which simplifies the installation operation of the retaining water guide plate and the irrigation system;

[0023] (2) The water storage module of the present invention has a simple structure, is easy to maintain, and has a low manufacturing cost. After being used in engineering construction, it can save the existing multiple structural layers such as the drainage layer, isolation layer, filter layer, and anti-slip structure, simplify the irrigation system, and greatly reduce the construction cost. The water-absorbing hollow block material is made of expanded perlite lightweight aggregate concrete, so that it can properly transport the stored rainwater to the planting soil, and has a large porosity to improve the water storage rate of the entire water storage module. The shape of the block material has a large upper and small lower structure, which can prevent the planting soil from falling into the module box body and ensure smooth water flow in the lower half of the box body;

[0024] (3) This device can make full use of rainwater, achieve year-round irrigation-free, and effectively reduce operation and maintenance costs. By using hollow plastic plates to make soil retaining and anti-skid structures and rainwater inlet structures, when the water storage module itself does not slide, the soil retaining and water guide plate can effectively prevent the covering soil above the water storage module from sliding. The anti-skid of the water storage module can be achieved by the simplest method such as positioning plates. A large number of small holes or slits are evenly distributed on the soil retaining and water guide plate. Combined with the hollow holes in the middle of the water guide plate, rainwater can be quickly introduced into the water storage module, thereby reducing rainwater discharge, which is in line with the guiding ideology of sponge city construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a water storage module for greening a sloped roof according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of a water storage module for greening a sloped roof according to an embodiment of the present invention;

[0027] Figure 3 A schematic structural diagram of a heat-insulating water storage tank of a water storage module for greening a sloped roof according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic structural diagram of a water-absorbing hollow block material of a water storage module for greening a sloped roof according to an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of a water storage module combination for greening a sloped roof according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of a water storage module for greening a sloped roof in an embodiment of the present invention being used at the eaves;

[0031] In the figure:

[0032] 1. Insulated water storage tank; 11. Water hole of the left tank; 12. Water hole of the right tank; 13. Positioning groove;

[0033] 2. Water-absorbing hollow block; 21. Opening; 22. Convex edge;

[0034] 3. Earth retaining water guide plate; 31. Small water hole; 32. Large water hole;

[0035] 4. Overflow pipe fittings;

[0036] 5. Structural roof panels;

[0037] 6. Positioning plate;

[0038] 7. Fine stone retaining belt;

[0039] 8. Buffer zone;

[0040] 9. Planting soil;

[0041] 101. Safety guardrail; 102. Finishing layer; 103. Polyurea waterproof coating; 104. Retaining wall; 105. Drain pipe. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0044] See also Figures 1 to 6 , is a preferred embodiment of the present application, and this embodiment provides a water storage module for greening a sloped roof, comprising:

[0045] The heat-insulating water storage tank 1 is used to store water. The heat-insulating water storage tank 1 is made of EPS foam plastic. At the same time, the heat-insulating water storage tank 1 is provided with a left tank water hole 11 and a right tank water hole 12;

[0046] The water-absorbing hollow block material 2 is used to carry the planting soil and transfer the water in the heat-insulating water storage box 1 to the planting soil; the water-absorbing hollow block material 2 is arranged in the heat-insulating water storage box 1; the water-absorbing hollow block material is made of expanded perlite lightweight aggregate concrete;

[0047] The soil retaining and water guiding plate 3 is used to prevent the planting soil from sliding and can quickly guide the intercepted rainwater into the thermal insulation water storage tank 1; the soil retaining and water guiding plate 3 is clamped between the inner wall of the thermal insulation water storage tank 1 and the top edge of the water-absorbing hollow block 2, and the bottom end is stuck in the positioning groove 13 at the bottom of the thermal insulation water storage tank 1.

[0048] In the embodiment of the present application, when using this water storage module, the heat preservation water storage tank 1 is neatly placed on the structural roof panel 5 of the flat roof or sloped roof that has been waterproofed, so that the axis direction of the left water hole 11 of the heat preservation water storage tank 1 is consistent with the slope direction of the roof. At the same time, the following operations are completed while placing:

[0049] 1) Place the first row of thermal insulation water storage tanks 1;

[0050] 2) Insert the soil retaining and water guiding plate 3 into the heat-insulating water storage tank body 1, and insert the bottom of the soil retaining and water guiding plate 3 into the positioning groove 13 of the heat-insulating water storage tank body 1;

[0051] 3) Place the water-absorbing hollow block 2 into the heat-insulating water storage tank 1;

[0052] 4) Place another row of heat-insulating water storage tanks 1;

[0053] 5) Install overflow pipe 4 at the water hole of the thermal insulation water storage tank 1 to connect the water paths of two adjacent thermal insulation water storage tanks 1;

[0054] 6) Repeat steps 2 to 5 until one side of the roof is covered;

[0055] 7) A plastic irrigation pipe is installed at the highest point of a flat roof or the ridge of a sloping roof. A hole is opened on the pipe to install a drip irrigation capillary. Each capillary corresponds to a water storage module close to the ridge, and the water outlet of the capillary is directly inserted into the retaining water guide plate 3 of the water storage module.

[0056] When irrigation is needed, the water supply valve of the above-mentioned plastic pipe for irrigation is opened (not shown in the figure), and the irrigation water is injected into the water storage module in the highest row through the capillary tube; when the water level in the water storage module in the highest row exceeds the overflow height of the overflow pipe 4, it will overflow to the water storage module in the second row adjacent thereto; when the water in the water storage module in the second row is full, it will overflow to the adjacent water storage module at the lower end (refer to Figure 5 ). And so on, until the water storage modules on the entire slope are filled with irrigation water. This irrigation method makes the irrigation system very simple.

[0057] See also Figure 2 and Figure 4In the embodiment of the present application, in order to enable the water-absorbing hollow block material 2 to be tightly arranged on the heat-insulating water storage tank body 1, preferably, the lower half of the water-absorbing hollow block material 2 of the present embodiment is preferably a hollow quadrangular prism structure. At the same time, the lower half of the water-absorbing hollow block material 2 can also be arranged as a plurality of cylinders or special-shaped columns that can support the top panel-shaped body, and these also belong to the protection scope of the present embodiment. Specifically, the four edges of the top surface of the water-absorbing hollow block material 2 are provided with raised convex edges 22, and three of the four convex edges 22 of the water-absorbing hollow block material 2 are in close contact with the inner wall of the heat-insulating water storage tank body 1 to prevent the soil above the water storage module from falling into the heat-insulating water storage tank body 1 during use;

[0058] Similarly, in order to prevent the soil above the water storage module from falling into the thermal insulation water storage tank 1 during use, the water-absorbing hollow block 2 and the soil retaining and water guide plate 3 should be tightly matched, that is, the soil retaining and water guide plate 3 should be clamped between the inner wall of the thermal insulation water storage tank 1 and the fourth convex edge 22 of the water-absorbing hollow block 2.

[0059] In the embodiment of the present application, it is necessary to lay a polyurea waterproof coating 103 on the flat roof or the sloping roof where the water storage module is laid to improve the waterproof performance.

[0060] In the embodiment of the present application, a finishing layer 102 may be laid on the outside of the polyurea waterproof coating 103 on the outside of the retaining wall 104 to protect the polyurea waterproof coating 103 at the retaining wall 104 .

[0061] In the embodiment of the present application, a safety guardrail 101 may be installed on the top surface of the retaining wall 104 to improve installation performance.

[0062] See also Figures 1 to 3 In the embodiment of the present application, the heat-insulating water storage tank body 1 includes a tank bottom plate and a side plate arranged around the tank bottom plate, and the side plate is provided with a left tank body water through hole 11 and a right tank body water through hole 12.

[0063] In the embodiment of the present application, the heat-insulating water storage box 1 is a rectangular parallelepiped, and is made of EPS foam plastic. The heat-insulating water storage box 1 has a bottom plate and two pairs of oppositely arranged side plates, which are sequentially connected and arranged around the bottom plate. The bottom plate and all the side plates together form a box-shaped container with an open top, and the water-absorbing hollow block material 2 and the retaining water guide plate 3 are arranged inside the heat-insulating water storage box 1. The box-shaped container should have sufficient depth relative to its width to ensure that it still has sufficient water storage capacity when placed on the slope structure roof panel 5.

[0064] In an embodiment of the present application, when the insulated water storage tank 1 is neatly placed on a flat roof or a sloping roof that has been waterproofed, it is necessary to ensure that the direction of the connecting line between the left tank water hole 11 and the right tank water hole 12 (i.e., the axis of the water hole 11 or the axis of the water hole 12) is consistent with the slope direction of the structural roof panel 5.

[0065] See also Figure 2 and Figure 3 In the embodiment of the present application, a positioning groove 13 is provided on the box bottom plate corresponding to the soil retaining water guide plate 3, and the bottom end of the soil retaining water guide plate 3 is provided in the positioning groove 13, so that the bottom end of the soil retaining water guide plate 3 is fixed by the positioning groove 13.

[0066] See also Figure 1 and Figure 2 In the embodiment of the present application, the retaining water guide plate 3 is a plastic plate with a hollow cavity inside, and water holes 31 connected to the hollow cavity are evenly opened on the plate surface of the retaining water guide plate 3; optionally, narrow water slits connected to the hollow cavity are evenly opened on the plate surface of the retaining water guide plate 3. Since the function of the narrow water slit connected to the hollow cavity is exactly the same as that of the water holes 31, the narrow water slits can be directly set on the plate surface of the retaining water guide plate 3. According to conventional processing methods, setting narrow slits is conducive to reducing production costs. However, for the convenience of description, they are collectively referred to as water holes below.

[0067] In the embodiment of the present application, the water outlet end of the capillary tube is directly inserted into the hollow cavity in the soil retaining and water guiding plate 3 of the water storage module, and the water in the capillary tube enters the thermal insulation water storage tank 1 through the hollow cavity and the water passing hole 31.

[0068] Please continue reading Figure 1 and Figure 2 In the embodiment of the present application, a large water-passing hole 32 is provided on the soil retaining water guide plate 3 at a position corresponding to the water-passing hole 11 of the box body.

[0069] In this embodiment: a large number of evenly distributed small water holes 31 are provided on the board surface, so that the hollow cavity inside the board is connected with the outside of the board, and a large water hole 32 is provided in the middle part of the retaining water guide plate 3, so that the water flows smoothly at the overflow port during irrigation.

[0070] See also Figure 2 and Figure 3 In the embodiment of the present application, the left box water through hole 11 and the large water through hole 32 are arranged on the same line.

[0071] See also Figure 4In the embodiment of the present application, the bottom surface of the water-absorbing hollow block material 2 is inwardly recessed to form a plurality of openings 21, and the openings 21 are opposite to the bottom plate; at the same time, the plurality of openings 21 are arranged at intervals along the same straight line direction. A gap of a preset spacing is formed between the outer wall of the bottom surface of the water-absorbing hollow block material 2 and the inner wall of the opening cavity. The top surface of the water-absorbing hollow block material 2 is a flat surface, and the top surface of the water-absorbing hollow block material 2 is flush with the top of the side plate.

[0072] In an optional embodiment, the water-absorbing hollow block 2 is made of lightweight concrete with expanded perlite as aggregate.

[0073] In an optional embodiment, the upper portion of the water-absorbing hollow block material 2 is a flat surface, and a certain gap is left between the lower portion of the outer wall of the water-absorbing hollow block material 2 and the inner wall of the heat-insulating water storage tank body 1 .

[0074] In an optional embodiment, the size of the upper portion of the water-absorbing hollow block 2 matches the size of the inner opening of the upper portion of the thermal insulation water storage box 1 to prevent soil from falling into the box.

[0075] See also Figures 4 to 6 In this embodiment, the upper part of the water-absorbing hollow block 2 is a flat surface for supporting the planting soil 9, and the bottom of the water-absorbing hollow block 2 is provided with a plurality of openings 21. While reducing the weight of the block, when it is placed in the water storage box, it can only occupy a small amount of water storage space. At the same time, a certain gap is left between the lower side wall of the water-absorbing hollow block 2 and the inner wall of the lower part of the heat-insulating water storage box 1, so as to facilitate smooth water flow during irrigation. The water-absorbing hollow block 2 is larger at the top and smaller at the bottom, and its upper size matches the inner opening size of the upper part of the heat-insulating water storage box 1 to prevent soil from falling into the heat-insulating water storage box 1 when covering the soil.

[0076] In the embodiment of the present application, it should be emphasized that the operation of placing the insulated water storage tank 1 neatly on the sloping roof should start from the eaves of the sloping roof. Before placing the insulated water storage tank 1, a positioning plate 6 should be pasted on the roof at a certain distance from the retaining wall 104 at the eaves to facilitate the neat placement of the water storage module. When placing, the user should make the axial direction of the water through hole 11 of the tank consistent with the slope direction of the roof, and the adjacent insulated water storage tanks 1 should be as close as possible. Then, a retaining water guide plate 3 is inserted into each insulated water storage tank 1, one end of which is inserted into the positioning groove 13, and then the water-absorbing hollow block 2 is placed. At this point, the installation of the first row of modules is completed, and then another row of adjacent insulated water storage tanks 1 is installed, the overflow pipe 4 is installed to make the water channels of the two adjacent tanks communicate, the retaining water guide plate 3 and the water-absorbing hollow block 2 are installed, and so on to complete the installation of the entire roof water storage module. After all the water storage modules are installed in place, pebbles are immediately filled between the water storage module near the eaves and the retaining wall 104 to form a buffer zone 8. The retaining wall 104, the positioning plate 6 and the buffer zone 8 jointly prevent the water storage module from sliding downward. Then, the user first fills the planting soil 9 between the two adjacent rows of retaining water guide plates 3. When filling, it should be noted that a fine stone retaining belt 7 is set between the planting soil 9 and the retaining water guide plate 3. Then, the user sets an irrigation plastic pipe (not shown in the figure) at the highest point of the flat roof or the ridge of the sloping roof, and opens a hole in the water pipe to install a drip irrigation capillary. Each capillary corresponds to a water storage module near the ridge. The water outlet end of the capillary is directly inserted into the retaining water guide plate 3 of the water storage module. Then, plants can be planted in the laid soil. After planting the plants, water should be poured immediately and the soil should be kept moist until the plants are When the soil is grown, there is generally no need for watering or irrigation. When it rains lightly, rainwater directly penetrates into the soil. When it rains heavily or rainstorms, runoff may be generated on the soil surface. When rainwater flows to the fine stone retaining belt 7, it will quickly penetrate into the fine stone retaining belt 7, and then pass through the fine stone retaining belt 7 and the water holes 31 on the retaining water guide plate 3 into the hollow of the retaining water guide plate 3, and finally be stored in the water storage module. When irrigation is needed, the water supply valve of the above-mentioned irrigation plastic pipe (not shown in the figure) is opened, and irrigation water is injected into the highest row of water storage modules through the capillary. When the water level in the highest row of water storage modules exceeds the overflow height of the overflow pipe 4, it will overflow to the second row of water storage modules adjacent to it. When the water in the second row of water storage modules is full, it will overflow to the adjacent water storage modules, and so on, until the water storage modules on the entire slope are filled with irrigation water (reference Figure 5 ).

[0077] In an optional embodiment, a positioning plate 6 is fixedly connected to the bottom end of the left end surface of the thermal insulation water storage tank body 1 located at the left end.

[0078] In this embodiment: before placing the heat-insulating water storage box 1, a positioning plate 6 should be pasted on the roof at a certain distance from the retaining wall 104 at the eaves to facilitate the neat placement of the water storage modules.

[0079] In an optional embodiment, a buffer zone 8 is filled between the left end surface of the insulated water storage tank 1 located at the left end and the retaining wall 104, and a drainage pipe 105 is buried in the retaining wall 104. One end of the drainage pipe 105 extends to the inside of the buffer zone 8, and the other end of the drainage pipe 105 extends to the outside of the retaining wall 104.

[0080] In this embodiment: through this design, the retaining wall 104, the positioning plate 6 and the buffer zone 8 jointly prevent the water storage module from sliding downward, and the buffer zone 8 can be used as an inspection channel, and the set drainage pipe 105 can be used for drainage.

[0081] In an optional embodiment, the heat-insulating water storage tank body 1 is made of EPS foam plastic.

[0082] In this embodiment: through this design, the characteristics of EPS foam plastics are utilized to achieve the thermal insulation effect.

[0083] Working principle and use process of the present invention: It should be emphasized that the operation of placing the thermal insulation water storage tank 1 neatly on the sloping roof should start from the eaves of the sloping roof. Before placing the thermal insulation water storage tank 1, a positioning plate 6 should be pasted on the roof at a certain distance from the retaining wall 104 at the eaves to facilitate the neat placement of the water storage module. When placing, the user should make the axial direction of the water hole 11 of the tank consistent with the slope direction of the roof.

[0084] The present invention provides a water storage module for greening of sloping roofs. The module can be produced in a factory and used for greening of sloping roofs. It can not only store a large amount of rainwater, but also save a large amount of materials such as drainage layers, water retention layers, filter layers, and anti-skid components. The construction is convenient, and there is no need to pre-embed Φ12 steel bars and weld them with anti-skid components. As long as the module is directly placed on the sloping roof, it can be directly covered with planting soil, thereby greatly reducing labor costs and making the greening of sloping roofs popular.

[0085] The water storage module for greening a sloped roof provided in the present application has the following beneficial effects:

[0086] (1) The present invention is a water storage and supply device specially designed for roof greening on a sloping roof. It can simultaneously meet the two major requirements of storing a large amount of rainwater and preventing sliding required for greening on a sloping roof. The EPS foam plastic is used to make a heat-insulating water storage box, and the box is provided with a box water hole and a positioning groove, which simplifies the installation operation of the retaining guide plate and the irrigation system;

[0087] (2) The water storage module of the present invention has a simple structure, is easy to maintain, and has a low manufacturing cost. After being used in engineering construction, it can save the existing multiple structural layers such as the drainage layer, isolation layer, filter layer, and anti-skid structure, simplify the irrigation system, and greatly reduce the construction cost. The water-absorbing hollow block material is made of expanded perlite lightweight aggregate concrete, so that it can properly transport the stored rainwater to the planting soil, and has a large porosity to improve the water storage rate of the entire water storage module. The shape of the block material has a large upper and small lower slope, which can prevent the planting soil from falling into the module box body and ensure smooth water flow in the lower half of the box body;

[0088] (3) This device can make full use of rainwater, achieve year-round irrigation-free, and effectively reduce operation and maintenance costs. By using hollow plastic plates to make soil retaining and anti-skid structures and rainwater inlet structures, the water storage module itself can be made non-sliding in the simplest way, and a soil retaining and water guide plate is set on the water storage module to effectively prevent the covering soil above the water storage module from sliding. A large number of small holes are evenly distributed on the soil retaining and water guide plate, and the hollow holes in the middle of the water guide plate can quickly guide rainwater into the water storage module, thereby reducing rainwater discharge, which is in line with the guiding ideology of sponge city construction.

[0089] The above description is only a preferred embodiment of the present invention, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water storage module for greening a sloped roof, characterized in that: include: A heat-insulating water storage tank (1) for storing water; The water-absorbing hollow block material (2) is used to carry the planting soil and transfer the water in the heat-insulating water storage box (1) to the planting soil; The water-absorbing hollow block material (2) is arranged in the heat-insulating water storage box (1); A soil retaining and water guiding plate (3) is used to prevent the planting soil from sliding and to guide rainwater into the thermal insulation water storage box (1); the soil retaining and water guiding plate (3) is clamped between the inner side wall of the thermal insulation water storage box (1) and the top edge of the water-absorbing hollow block material (2), and the bottom end is inserted into the positioning groove (13) at the bottom of the thermal insulation water storage box (1); The heat-insulating water storage box (1) comprises a box bottom plate and a side plate arranged around the box bottom plate, and the side plate is provided with a left box water hole (11) and a right box water hole (12); the connection direction of the left box water hole (11) and the right box water hole (12) is consistent with the slope direction of the structural roof panel (5); The four edges of the top surface of the water-absorbing hollow block (2) are provided with raised convex edges (22); Three of the four convex edges (22) of the water-absorbing hollow block (2) are in close contact with the inner wall of the heat-insulating water storage box (1); The soil retaining and water guiding plate (3) is clamped between the inner side wall of the heat-insulating water storage box (1) and the fourth convex edge (22) of the water-absorbing hollow block material (2).

2. The water storage module for greening a sloped roof according to claim 1, characterized in that: A positioning groove (13) is provided on the box bottom plate at a position corresponding to the soil retaining and water guiding plate (3), and the bottom end of the soil retaining and water guiding plate (3) is arranged in the positioning groove (13).

3. The water storage module for greening a sloped roof according to claim 1, characterized in that: The bottom surface of the water-absorbing hollow block (2) is inwardly recessed to form an opening (21), and the opening is opposite to the bottom plate.

4. The water storage module for greening a sloped roof according to claim 1, characterized in that: A gap of a preset distance is formed between the outer side wall of the water-absorbing hollow block material (2) and the inner side wall of the heat-insulating water storage box (1).

5. The water storage module for greening a sloped roof according to claim 1, characterized in that: The soil retaining and water guiding plate (3) is a plastic plate with a hollow cavity inside, and small water-passing holes or narrow water-passing slits communicating with the hollow cavity are evenly provided on the plate surface of the soil retaining and water guiding plate (3).

6. The water storage module for greening a sloped roof according to claim 1, characterized in that: A large water-passing hole (32) is provided on the soil retaining and water-guiding plate (3) at a position corresponding to the water-passing hole of the box body.

7. The water storage module for greening a sloped roof according to claim 1, characterized in that: The top surface of the water-absorbing hollow block material (2) is a flat surface, and the top surface of the water-absorbing hollow block material (2) is flush with the top end of the side plate.

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