Building facade water storage energy-saving heat insulation device

Abstract

The application relates to the technical field of building, in particular to a building facade water storage type energy-saving heat insulation device, which comprises a water storage tank, a fixed frame in communication with the inside of the water storage tank is arranged at the top of one side of the water storage tank, mounting plates are fixedly connected to the top of both sides of the fixed frame, a first supporting frame and a second supporting frame are fixedly arranged between the two mounting plates, the first supporting frame and the second supporting frame are arranged along the front-rear direction and are both grid-shaped, and a plurality of detachable water storage units are arranged between the first supporting frame and the second supporting frame. The building facade water storage type energy-saving heat insulation device integrates building moisture-proofing, efficient heat exchange, automatic dredging, intelligent spraying cooling and rainwater recycling, and through modular design, rotational flow disturbance, timed pollution discharge, water curtain evaporation and automatic folding and unfolding of the filter screen and other innovative means, energy saving and consumption reduction, water saving and emission reduction, safe maintenance and long-term reliable operation are realized.

Description

Technical Field

[0001] This invention relates to the field of building technology, and in particular to a water-storage energy-saving heat insulation device for building facades. Background Technology

[0002] With the accelerating pace of urbanization, the proportion of building energy consumption in total social energy consumption continues to rise. Among these, the cooling load of air conditioning surges in summer under extreme high temperatures, and the thermal insulation performance of the exterior facade directly affects indoor thermal comfort and energy consumption levels. Against this backdrop, externally mounted building facade water storage units, as a passive thermal control method, have received widespread attention and application in green building and energy-saving renovation of existing buildings both domestically and internationally in recent years. This is because they do not require additional mechanical power and can reduce the surface temperature of the exterior wall solely through the heat capacity of water and natural evaporation. These devices typically rely on the high heat capacity and evaporative heat absorption characteristics of water to form an additional insulation layer on the outside of the wall. They are simple in structure, flexible in installation, and do not occupy indoor space, thus having high application value in both energy-saving renovation of existing buildings and new green buildings.

[0003] However, existing external water storage units have the following design flaws: First, most adopt a closed cavity structure, resulting in long-term static water retention and extremely poor flow. The closed and dark environment easily becomes a breeding ground for algae, bacteria, and other microorganisms, causing the water to deteriorate rapidly and continuously produce a pungent odor. At the same time, due to the lack of an independent fixed-point sewage discharge channel, the long-term accumulation of sediment continuously occupies the effective water storage volume and further aggravates the corrosion of the cavity wall. Second, most water storage units do not have a water-blocking and water-guiding structure on the top. During rainfall, rainwater can easily seep into the gap between the water storage unit and the wall. Long-term water seepage causes the wall to become damp, the exterior wall decoration to become moldy and peel off, and the interior to become hollow and seep into the wall. In addition, there is no shielding or protective structure on the top plane, and a large amount of dead branches, leaves, and dust accumulate. Manual cleaning operations are extremely difficult and unsafe. The above problems seriously restrict the actual service life and applicability of this type of device. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems existing in the prior art, and to propose a water-storage energy-saving heat insulation device for building facades.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a water-storage energy-saving heat insulation device for building facades, comprising a water storage tank, a fixed frame communicating with the interior of the water storage tank is installed on one side of the top of the water storage tank, mounting plates are fixedly connected to both sides of the top of the fixed frame, a first support frame and a second support frame are fixedly installed between the two mounting plates, the two are arranged in a grid pattern along the front-back direction, and a plurality of detachable water storage units are installed between the first support frame and the second support frame; The first support frame and the second support frame are provided with mounting housings at their top ends. A collection frame is fixedly connected to the top end of the mounting housing. The collection frame is connected to the water storage tank through a drain pipe. A flexible filter screen is sleeved inside the collection frame. A reciprocating sliding connecting rope is threaded through the top end of the flexible filter screen. A tightening mechanism is provided between the water storage tank and the collection frame for sealing the flexible filter screen.

[0006] Preferably, each water storage unit has several conical sludge collection tanks installed at its bottom. One side of the water storage unit is provided with a water inlet pipe, and a downwardly inclined nozzle is installed on the water inlet pipe. The nozzle extends through the side wall of the water storage unit into its interior and is located above the corresponding conical sludge collection tank. An electric drain ball valve is installed at the lower end of the conical sludge collection tank. A drain pipe is provided on the other side of the water storage unit. The electric drain ball valve is connected to the drain pipe through a pipe. The lower end of the drain pipe is connected to a fixed frame. A pull-out filter frame is installed inside the fixed frame.

[0007] Preferably, a partition is provided between two adjacent conical sludge collection tanks, and there is a gap between the partition and the top wall of the water storage unit to facilitate the flow of water inside the water storage unit, and the surface of the partition is provided with small through holes.

[0008] Preferably, a first connecting pipe and a water pump are provided on one side of the mounting plate. One end of the first connecting pipe is connected to a water storage tank, and the other end is connected to the input end of the water pump. The output end of the water pump is connected to a second connecting pipe. The second connecting pipe is located inside the mounting housing and is arranged horizontally. The top end of the water inlet pipe is connected to the second connecting pipe.

[0009] Preferably, a first spray device is installed on one side inside the mounting housing, and a plurality of spray tubes are installed on the first spray device. A guide frame is installed on the outside of each water storage unit. A second spray device is installed on the other side inside the mounting housing. Both the first spray device and the second spray device are connected to a second connecting pipe through a pipeline.

[0010] Preferably, a filter screen is installed on the other side of the top of the water storage tank, and the filter screen is used to filter the falling water curtain.

[0011] Preferably, the tightening mechanism includes a winding assembly, an unwinding assembly, and a sealing assembly. The winding assembly includes a first rotating roller mounted on one side of the top of the water tank via a rotating connector. The first rotating roller is driven by a first motor. One end of the connecting rope is connected to the first rotating roller, and the winding operation of the connecting rope is realized through the first rotating roller.

[0012] Preferably, the unwinding assembly includes a second rotating roller mounted on one side of the top of the collection frame via a rotating connector. The second rotating roller is driven by a second motor, and the other end of the connecting rope is connected to the second rotating roller. The unwinding operation of the connecting rope is achieved through the second rotating roller.

[0013] Preferably, the sealing assembly includes a first magnetic block fixedly connected to the flexible filter screen and a second magnetic block fixedly connected to the connecting rope. The first magnetic block is located on the side of the flexible filter screen away from the second rotating roller, and the connecting rope slides through the first magnetic block. The second magnetic block is located on the side of the connecting rope closer to the second rotating roller.

[0014] Preferably, the collecting frame is equipped with a flip-up electric door on the side away from the second rotating roller. An electric protrusion is fixedly installed at the top of the electric door, and the top of the protrusion can be freely extended and retracted and is equipped with a magnet. The first magnetic block has a slot inside that cooperates with the electric protrusion.

[0015] Compared with existing technologies, the advantages of this invention are: 1. This application reserves passive ventilation cavities between the water storage unit and the wall, utilizing natural convection to remove moisture and condensation from the outside of the wall, effectively preventing the exterior wall from becoming damp and moldy; and the water storage unit adopts an independent modular design, so that a single cavity can be replaced individually if it is damaged or blocked, without the need for overall removal; at the same time, the number of cavities can be flexibly increased or decreased according to the building facade size to adapt to different layouts, greatly reducing maintenance difficulty and renovation costs.

[0016] 2. The internal corners of the cavity in this application are all rounded to eliminate dead corners for scale accumulation; the bottom angled nozzles impact the conical sludge collection tank at high speed to form a swirling flow, which, together with the baffles, guides the reciprocating convection to achieve uniform water temperature throughout the area and reduce the heat exchange boundary layer, thereby enhancing heat exchange efficiency; the through holes of the baffles generate jet turbulence, which inhibits the adhesion of algae and biofilm, while shearing and breaking up flocculent impurities to avoid clumping and accumulation, and ensure stable long-term heat exchange performance.

[0017] 3. The nozzle of this application sprays downwards at an angle to loosen the hardened mud, scale and biological slime in the conical sludge collection tank. The water pressure breaks them up and lifts them, and they are carried to the bottom by the circulating water. The electric sewage ball valve opens automatically at regular intervals to completely discharge the sludge through the sewage pipe. The discharged impurities are intercepted by the filter frame, and the filtered water flows back to the water storage tank and re-enters the water storage unit, realizing water recycling and greatly reducing the frequency of manual cleaning.

[0018] 4. Under normal conditions, the water storage unit of this application is closed and stationary, relying on water for insulation and periodic replacement to maintain heat exchange efficiency; when the temperature is extremely high, the first spray device is activated to form a continuous thin water curtain on the surface of the guide frame, which vaporizes and absorbs heat to quickly remove solar radiation heat, resulting in efficient cooling; the inner second spray device can spray water jets onto the outer wall, effectively blocking the spread of fire in case of fire, and has both daily energy saving and emergency fire prevention functions.

[0019] 5. This application collects rainwater and directs it to a water storage tank, achieving dual water supply and prioritizing the use of recycled rainwater, significantly saving tap water; the flexible filter screen intercepts debris, and the motor-driven connecting rope and magnetic attachment automatically close the opening before lowering the whole thing to the ground, allowing workers to empty and clean it from the ground, completely avoiding the risks of working at height; the lifting process is constrained by baffles and limit rollers, ensuring smooth operation and safe and labor-saving maintenance.

[0020] In summary, this invention integrates building moisture protection, high-efficiency heat exchange, automatic sludge removal, intelligent spray cooling, and rainwater recycling. Through innovative methods such as modular design, swirling disturbance, timed sewage discharge, water curtain evaporation, and automatic filter retraction, it achieves energy saving, water conservation and emission reduction, safe maintenance, and long-term reliable operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a water-storage energy-saving thermal insulation device for building facades proposed in this invention. Figure 2 This is a front view of a water-storage energy-saving thermal insulation device for building facades proposed in this invention. Figure 3 This is a schematic diagram of the water storage tank of a building facade water storage energy-saving insulation device proposed in this invention; Figure 4 This is a split view of the fixing frame of a water-storage energy-saving heat insulation device for building facades proposed in this invention. Figure 5 This is a schematic diagram of the collection frame of a water-storage energy-saving heat insulation device for building facades proposed in this invention. Figure 6 for Figure 5 A magnified view of the details at point A; Figure 7 for Figure 5 A magnified view of the details at point B; Figure 8 This is a full cross-sectional schematic diagram of the collection frame of a building facade water-storage energy-saving and heat-insulating device proposed in this invention. Figure 9 for Figure 8 A magnified view of the details at point C; Figure 10 This is a full cross-sectional schematic diagram of the flexible filter screen of a building facade water storage energy-saving insulation device proposed in this invention. Figure 11 for Figure 10 Enlarged detail of point D; Figure 12 This is a schematic diagram of the full cross-sectional structure of the installation shell of a water-storage energy-saving heat insulation device for building facades proposed in this invention. Figure 13This is a full sectional structural diagram of the first and second support frames of a water-storage energy-saving heat insulation device for building facades proposed in this invention. Figure 14 This is a full sectional structural diagram of the water storage unit of a building facade water storage energy-saving insulation device proposed in this invention.

[0022] In the diagram: 1. Water storage tank; 2. Water storage unit; 3. Guide frame; 4. Collection frame; 5. Mounting plate; 6. Drain pipe; 7. First connecting pipe; 8. Water pump; 9. Fixing frame; 10. First motor; 11. First rotating roller; 12. Filter screen; 13. Filter frame; 14. First spray device; 15. Inlet pipe; 16. Sewage pipe; 17. Flexible filter screen; 18. Baffle; 19. Connecting rope; 20. First magnetic block; 21. Second magnetic block; 22. Limiting roller; 23. Second motor; 24. Second rotating roller; 25. Electric gate; 26. Electric protrusion; 27. Second connecting pipe; 28. Mounting housing; 29. ​​Spray tube; 30. Second spray device; 31. First support frame; 32. Second support frame; 33. Spray head; 34. Partition; 35. Conical sludge collection tank; 36. Electric sewage ball valve. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] Reference Figures 1 to 14 A water-storage energy-saving insulation device for building facades includes a water storage tank 1, which is installed on the first basement floor. A fixed frame 9, which communicates with the interior of the water storage tank 1, is installed on one side of the top of the water storage tank 1. A retractable filter frame 13 is installed inside the fixed frame 9. Mounting plates 5 are fixedly connected to both sides of the top of the fixed frame 9. The mounting plates 5 are fixed to the wall by bolts and connectors. A first support frame 31 and a second support frame 32 are fixedly installed between the two mounting plates 5. The first support frame 31 and the second support frame 32 are arranged in a front-to-back direction and are both grid-like. Several detachable water storage units 2 are installed in the grid formed by the first support frame 31 and the second support frame 32.

[0025] Each water storage unit 2 has rounded corners to prevent dirt accumulation at right angles. Several conical sludge collection tanks 35 are installed at the bottom of each water storage unit 2. A partition 34 is installed between adjacent conical sludge collection tanks 35, with a gap between the partition 34 and the inner top wall of the water storage unit 2 to facilitate water flow. Small through holes are formed on the surface of the partition 34. A water inlet pipe 15 is installed on one side of the water storage unit 2, with a downward-sloping nozzle 33 installed on it. The nozzle 33 extends through the side wall of the water storage unit 2 and is positioned above the corresponding conical sludge collection tank 35, allowing the oblique water flow to directly impact the conical sludge collection tank at high speed. The sludge tank 35 reduces the sedimentation and attachment of microorganisms. An electric sewage discharge ball valve 36 is installed at the lower end of the conical sludge collection tank 35. The electric sewage discharge ball valve 36 is existing technology, and its specific structural design will not be described in detail here. The control system can automatically open the electric sewage discharge ball valve 36 at regular intervals. A sewage discharge pipe 16 is provided on the other side of the water storage unit 2. The electric sewage discharge ball valve 36 is connected to the sewage discharge pipe 16 through a pipe to discharge the silt and other impurities accumulated at the bottom of the conical sludge collection tank 35. The lower end of the sewage discharge pipe 16 is connected to the fixed frame 9. The filter frame 13 inside the fixed frame 9 filters the silt and other impurities in the water flow. The filtered water flows into the water storage tank 1 for reuse.

[0026] The mounting plate 5 has a first connecting pipe 7 and a water pump 8 on one side. One end of the first connecting pipe 7 is connected to the water storage tank 1, and the other end is connected to the input end of the water pump 8. The output end of the water pump 8 is connected to a second connecting pipe 27. The second connecting pipe 27 is located inside the mounting housing 28 and is arranged horizontally. The top end of the water inlet pipe 15 is connected to the second connecting pipe 27. The filtered water flows into the water storage tank 1 and then flows into the water storage unit 2 in sequence through the first connecting pipe 7, the water pump 8, the second connecting pipe 27, and the water inlet pipe 15 to complete the water recycling.

[0027] The first support frame 31 and the second support frame 32 are equipped with a mounting housing 28. A first spray device 14 is installed on one side inside the mounting housing 28. Multiple spray tubes 29 are installed on the first spray device 14. A guide frame 3 is installed on the outside of each water storage unit 2. The fine water stream sprayed from the spray tubes 29 will fall evenly on the outer surface of the water storage unit 2 and flow vertically down along the surface of the water storage unit 2 and the guide frame 3 to form a continuous and uniform thin water curtain. A second spray device 30 is installed on the other side inside the mounting housing 28. The first spray device 14 and the second spray device 30 are connected to the second connecting pipe 27 through pipes. The second spray device 30 is existing technology, and its specific structural design will not be described here. In the event of a fire, it is used to spray water jets onto the outer wall to quickly block the spread of fire. A filter screen 12 is installed on the other side of the top of the water storage tank 1. The filter screen 12 is used to filter the falling water curtain.

[0028] A collection frame 4 is fixedly connected to the top of the housing 28. One side of the collection frame 4 abuts against the wall to prevent rainwater from falling between the water storage unit 2 and the wall. The bottom of the collection frame 4 has a slope that slopes outward from the wall. A drain pipe 6 is provided on one side of the bottom of the collection frame 4, which is connected to the inside of the collection frame 4. The lower end of the drain pipe 6 is connected to the inside of the water storage tank 1. The collection frame 4 is used to collect natural rainwater and inject it into the water storage tank 1. A flexible filter screen 17 is fitted inside the collection frame 4. A reciprocating connecting rope 19 is threaded through the top of the flexible filter screen 17. A first rotating roller 11 is installed on one side of the top of the water storage tank 1 through a rotating connector. The first rotating roller 11 is driven by a first motor 10 installed on the rotating connector. One end of the connecting rope 19 is connected to the first rotating roller 11, and the first rotating roller 11 is used to achieve the connection. The winding operation of the rope 19 involves a second rotating roller 24 mounted on one side of the top of the collection frame 4 via a rotating connector. The second rotating roller 24 is driven by a second motor 23 mounted on the rotating connector. The other end of the connecting rope 19 is connected to the second rotating roller 24, and the unwinding operation of the connecting rope 19 is achieved through the second rotating roller 24. A second magnetic block 21 is fixedly connected to the side of the connecting rope 19 near the second rotating roller 24, and a first magnetic block 20 is fixedly connected to the side of the flexible filter screen 17 away from the second rotating roller 24. The connecting rope 19 slides through the first magnetic block 20. When the second magnetic block 21 moves toward the first magnetic block 20 under the drive of the connecting rope 19, the opening of the flexible filter screen 17 gradually closes, thereby trapping and confining the trapped debris inside the flexible filter screen 17.

[0029] A flip-up electric door 25 is installed on the side of the collection frame 4 away from the second rotating roller 24. The electric door 25 is existing technology, and its specific structural design will not be described in detail here. An electric protrusion 26 is fixedly installed on the top of the electric door 25. The electric protrusion 26 is existing technology. Its top can be freely extended and retracted and is equipped with a magnet. The first magnetic block 20 has a slot inside that cooperates with the electric protrusion 26, so that the electric protrusion 26 can be inserted into the first magnetic block 20 and limited under the action of magnetic force. A limiting roller 22 is installed on the side of the collection frame 4 near the second rotating roller 24 to laterally constrain the connecting rope 19. Two baffles 18 are installed on the other side to laterally constrain the flexible filter screen 17.

[0030] In use, the water storage tank 1 is installed on the first basement level. The first support frame 31 and the second support frame 32 are fixedly installed on the water storage unit 2. The mounting plate 5, the first support frame 31, and the second support frame 32 form a supporting unit, which is fixed to the wall with bolts. At this time, a certain distance is reserved between the water storage unit 2 and the wall surface, which can form a passive ventilation cavity. The air can naturally convect and carry away the moisture and condensation on the outside of the wall, thereby preventing the exterior wall from getting damp and moldy. The water storage unit 2 adopts an independent modular design. When a single cavity is damaged, leaks, blocked, or grows algae and dirt inside, it can be disassembled and replaced individually without dismantling the entire device. The number of cavities can also be flexibly increased or decreased according to the building facade size to adapt to different layouts.

[0031] All inner corners of the water storage unit 2 cavity have rounded transitions, eliminating right-angle dead corners for scale buildup. The nozzle 33 is located at the bottom of the water storage unit 2, using an oblique water flow to directly and at high speed impact the conical sludge collection tank 35. The water flow forms a circumferential swirling flow along the inner wall of the conical sludge collection tank 35 cavity, continuously rotating and disturbing the water, reducing the sedimentation and attachment of microorganisms. After the water flows in from the bottom, it rises along the baffle 34, then flips over the upper notch of the baffle 34 to the adjacent flow channel and turns back downwards, forming a reciprocating convection. This ensures uniform water temperature throughout the cavity and, through water flow disturbance, thins the heat exchange boundary layer on the inner wall, enhancing convective heat transfer efficiency. Small through holes are opened on the surface of the baffle 34, which, through water jet, enhances the overall turbulent disturbance, inhibiting the attachment of algae and biofilm, while shearing and breaking up flocculent impurities, reducing the risk of clumping and sedimentation. In addition, the nozzle 33 adopts an oblique downward spraying method, which can rely on the high-speed water flow to impact and loosen the sediment in the conical sludge collection tank 35. The water flow pressure impacts the already hardened sediment, scale, and biological slime, breaking up and stirring the compacted accumulation. Then, the loose impurities are carried away by the conventional circulating water flow. The remaining impurities slide down to the bottom of the conical sludge collection tank 35 under the action of gravity on the slope and water flow. An electric sewage discharge ball valve 36 is installed at the bottom of the conical sludge collection tank 35. The control system can automatically open the valve at timed intervals to completely discharge the silted sediment with the water flow through the sewage pipe 16, realizing automatic sludge removal of internal impurities and greatly reducing the workload of device maintenance. The discharged impurities and water flow into the fixed frame 9 through the drain pipe 16. The impurities are trapped inside the filter frame 13. The accumulated dirt from daily sewage discharge can be simply pulled out of the filter frame 13 and poured out for cleaning. The filtered water flows through the filter frame 13 into the water storage tank 1, and then flows into the water storage unit 2 through the first connecting pipe 7, the water pump 8, the second connecting pipe 27, and the inlet pipe 15 to complete the water recycling.

[0032] Under normal circumstances, the water storage unit 2 is filled with water and left to stand still, relying on the water for insulation and maintaining stable heat exchange efficiency through periodic water replacement, while preventing the growth of bacteria and the attachment of biological slime in stagnant water. In extreme high-temperature weather, the first spray device 14 is activated. Because a guide frame 3 is installed on the outside of the water storage unit 2, fine water streams sprayed from the spray pipes 29 are evenly distributed on the outer surface of the water storage unit 2, flowing vertically downwards along the surface of the water storage unit 2 and the guide frame 3, forming a continuous and uniform thin water curtain. This flowing water curtain rapidly vaporizes under direct sunlight, directly carrying away a large amount of solar radiation heat. The falling water is collected by the water storage tank 1 through the filter screen 12 and reused. The two operating conditions can be switched as needed, with energy saving and consumption reduction under normal conditions and efficient heat dissipation at high temperatures, ensuring stable and reliable heat insulation and heat dissipation performance of the device over the long term. In addition, a second spray device 30 is installed on the upper inner side of the device, which can spray water jets onto the outer wall in case of fire, quickly stopping the spread of fire.

[0033] One side of the collection frame 4 abuts against the wall, effectively preventing rainwater from falling between the water storage unit 2 and the wall. The bottom of the collection frame 4 is a sloping surface, allowing rainwater falling into the collection frame 4 to flow smoothly along the sloping surface and be directed into the water storage tank 1 through the drain pipe 6. The water storage tank 1 adopts a dual-supply mode, which can be connected to municipal tap water as system replenishment water, and can also collect natural rainwater as a circulating water source. The spray water curtain cooling, cavity water replacement, and pipeline self-cleaning prioritize the use of recycled rainwater, and automatically supplements tap water only when rainwater is insufficient, significantly reducing daily operating water consumption and demonstrating good water-saving benefits. The inside of the collection frame 4 is fitted with a flexible filter screen 17 to prevent solid debris such as leaves and twigs from entering and to avoid clogging of the drain pipe 6. A reciprocating sliding connecting rope 19 is threaded onto the flexible filter screen 17. When the surface of the flexible filter screen 17 accumulates fallen leaves, mud, sand, and other debris to a certain load, the first motor 10 is started to drive the first rotating roller 11 to wind up the connecting rope 19. At the same time, the second motor 23 is started to drive the second rotating roller 24 to unwind the connecting rope 19. Since the second magnetic block 21 is fixedly connected to the connecting rope 19, and the first magnetic block 20 is fixedly connected to the flexible filter screen 17 and slidably connected to the connecting rope 19, the second magnetic block 21 will move towards the first magnetic block 20 under the drive of the connecting rope 19. During this process, the opening of the flexible filter screen 17 gradually closes, thereby trapping and confining the trapped debris inside the flexible filter screen 17. After the second magnetic block 21 and the first magnetic block 20 are magnetically attracted and attached, the two motors are turned off, and the electric protrusion 26 that is inserted into the first magnetic block 20 is retracted. Then the electric door 25 is opened to rotate it 180 degrees. Then the two motors are started again in sync. The flexible filter screen 17 that has been closed is pulled down to the ground by the connecting rope 19. The two motors are stopped. At this time, the staff can open the flexible filter screen 17 and clean the debris inside. After cleaning, the first motor 10 is started to drive the first rotating roller 11 to unwind the connecting rope 19, while the second motor 23 is started to drive the second rotating roller 24 to rewind the connecting rope 19, thereby pulling the flexible filter screen 17 upward. When the first magnetic block 20 moves to its original position, both motors stop, the electric door 25 rotates back to its original position, and the top magnet of the electric protrusion 26 extends and inserts into the first magnetic block 20. Then, both motors are started again to continue driving the second magnetic block 21 back to its original position. The flexible filter screen 17 is fully expanded and returns to the filtering state, continuing to filter rainwater. Both motors are controlled by internal programs to ensure that their forward and reverse rotations are consistent, so that the first magnetic block 20 can move to its initial position. This is existing technology. Baffles 18 and limiting rollers 22 are respectively set on the left and right sides of the collection frame 4 to laterally constrain the flexible filter screen 17 and the connecting rope 19, preventing the flexible filter screen 17 from shifting left and right or getting stuck during lifting and closing, ensuring the smooth operation of the device.After the flexible filter screen 17 is closed, the entire flexible filter screen 17 can be lowered to the ground directly by motor traction. Workers can dump debris from the ground, which greatly reduces the risk of falling from heights during the maintenance of the exterior walls of high-rise buildings. The operation is labor-saving and the safety of operation and maintenance is significantly improved.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water-storage type energy-saving thermal insulation device for building facades, comprising a water storage tank (1), characterized in that, The water storage tank (1) has a fixed frame (9) connected to its interior on one side of the top. The fixed frame (9) has mounting plates (5) fixedly connected to both sides of the top. A first support frame (31) and a second support frame (32) are fixedly installed between the two mounting plates (5). The two are arranged in the front-back direction and are both grid-shaped. Several detachable water storage units (2) are installed between the first support frame (31) and the second support frame (32). The first support frame (31) and the second support frame (32) are provided with an installation housing (28) at the top. A collection frame (4) is fixedly connected to the top of the installation housing (28). The collection frame (4) is connected to the water storage tank (1) through a drain pipe (6). A flexible filter screen (17) is sleeved inside the collection frame (4). A reciprocating sliding connecting rope (19) is threaded through the top of the flexible filter screen (17). A tightening mechanism is provided between the water storage tank (1) and the collection frame (4) for sealing the flexible filter screen (17).

2. The building facade water-storage energy-saving insulation device according to claim 1, characterized in that, Each water storage unit (2) has several conical sludge collection tanks (35) installed at its bottom. One side of the water storage unit (2) is provided with an inlet pipe (15). The inlet pipe (15) is equipped with a downward-sloping nozzle (33). The nozzle (33) extends through the side wall of the water storage unit (2) into its interior and is located above the corresponding side conical sludge collection tank (35). The lower end of the conical sludge collection tank (35) is equipped with an electric drain ball valve (36). The other side of the water storage unit (2) is provided with a drain pipe (16). The electric drain ball valve (36) is connected to the drain pipe (16) through a pipe. The lower end of the drain pipe (16) is connected to a fixed frame (9). A pull-out filter frame (13) is installed inside the fixed frame (9).

3. The building facade water-storage energy-saving insulation device according to claim 2, characterized in that, A partition (34) is provided between two adjacent conical sludge collection tanks (35). There is a gap between the partition (34) and the inner top wall of the water storage unit (2) to facilitate the flow of water inside the water storage unit (2). Small through holes are provided on the surface of the partition (34).

4. The building facade water-storage energy-saving insulation device according to claim 3, characterized in that, The mounting plate (5) is provided with a first connecting pipe (7) and a water pump (8) on one side. One end of the first connecting pipe (7) is connected to the water storage tank (1), and the other end is connected to the input end of the water pump (8). The output end of the water pump (8) is connected to a second connecting pipe (27). The second connecting pipe (27) is located inside the mounting housing (28) and is arranged horizontally. The top end of the water inlet pipe (15) is connected to the second connecting pipe (27).

5. The building facade water-storage energy-saving heat insulation device according to claim 4, characterized in that, A first spray device (14) is installed on one side inside the mounting housing (28). Multiple spray tubes (29) are installed on the first spray device (14). A guide frame (3) is installed on the outside of each water storage unit (2). A second spray device (30) is installed on the other side inside the mounting housing (28). The first spray device (14) and the second spray device (30) are connected to the second connecting pipe (27) through pipes.

6. The building facade water-storage energy-saving insulation device according to claim 5, characterized in that, A filter screen (12) is installed on the other side of the top of the water tank (1), and the filter screen (12) is used to filter the falling water curtain.

7. The building facade water-storage energy-saving heat insulation device according to claim 1, characterized in that, The tightening mechanism includes a winding assembly, an unwinding assembly, and a sealing assembly. The winding assembly includes a first rotating roller (11) mounted on one side of the top of the water tank (1) via a rotating connector. The first rotating roller (11) is driven by a first motor (10). One end of the connecting rope (19) is connected to the first rotating roller (11), and the winding operation of the connecting rope (19) is realized through the first rotating roller (11).

8. The building facade water-storage energy-saving heat insulation device according to claim 7, characterized in that, The unwinding assembly includes a second rotating roller (24) mounted on one side of the top of the collection frame (4) via a rotating connector. The second rotating roller (24) is driven by a second motor (23). The other end of the connecting rope (19) is connected to the second rotating roller (24). The unwinding operation of the connecting rope (19) is realized through the second rotating roller (24).

9. The building facade water-storage energy-saving heat insulation device according to claim 8, characterized in that, The sealing assembly includes a first magnetic block (20) fixedly connected to the flexible filter (17) and a second magnetic block (21) fixedly connected to the connecting rope (19). The first magnetic block (20) is located on the side of the flexible filter (17) away from the second rotating roller (24), and the connecting rope (19) slides through the first magnetic block (20). The second magnetic block (21) is located on the side of the connecting rope (19) close to the second rotating roller (24).

10. The building facade water-storage energy-saving heat insulation device according to claim 9, characterized in that, The collection box (4) is equipped with a flip-up electric door (25) on the side away from the second rotating roller (24). An electric protrusion (26) is fixedly installed on the top of the electric door (25). The top of the protrusion is freely retractable and equipped with a magnet. The first magnetic block (20) has a slot inside that cooperates with the electric protrusion (26).

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