Rainwater collecting plate for building facade
By designing a rain collecting cloth with foldable waterproof material and a double-headed motor-driven rope-winding system, the existing building facade rainwater collection board takes up space and destroys the beauty, achieving efficient rainwater collection and space saving effects.
Patent Information
- Application Number
- CN202422246972.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The existing building facade rainwater collection panels occupy a large volume, which will occupy the available building facade space, destroying the overall aesthetics of the building facade and making the building look chaotic.
A rainwater collection board on the facade of the building was designed, using a rainwater collection cloth made of foldable waterproof material, and the rope wheel was driven to rotate through a double-headed motor, so that the folding skeleton stretched forward and backward, realizing the opening and closing of the rainwater collection cloth, reducing the space occupation when rainwater is not collected.
Without affecting the appearance of the building, the efficiency of rainwater collection is improved, and it is automatically folded and folded after the rainfall is over, reducing the space occupation and the impact on the appearance of the building.
Smart Images

Figure CN223017733U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rainwater collection, in particular to a rainwater collection plate for the building facade. Background Art
[0002] The building facade refers to the surface part of a building facing the external space, including the exterior wall, windows, balconies, roof edges, and porches of the building that are directly exposed to the external environment. It is not only the enclosure structure of the building, playing the functions of shielding wind and rain, heat insulation, and sound insulation, but also an important display surface of the building appearance image.
[0003] A rainwater collection plate for the building facade is a device installed on the outer surface of a building, used to collect rainwater through a rain collection cloth and an adjustable support structure. It can collect rainwater to the maximum extent and improve the utilization rate of rainwater resources. In large commercial complexes, the rainwater collected by the rainwater collection plate for the building facade can be used for the irrigation of surrounding landscape plants. In residential communities, it can be used for the cleaning and greening water in the public areas of the community.
[0004] The existing rainwater collection plates for building facades are in an unfolded state both during the collection process and during the non-collection process. Since the collection plates need to collect rainwater, they occupy a relatively large volume, taking up the available building facade space and damaging the overall aesthetics of the building facade, making the building appearance look messy. Content of the Utility Model
[0005] To make up for the above deficiencies, the utility model provides a rainwater collection plate for the building facade, aiming to improve the problem that the existing rainwater collection plates for building facades occupy a relatively large volume due to their own structure, taking up the available building facade space and damaging the overall aesthetics of the building facade, making the building appearance look messy.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A rainwater collection plate for the building facade includes a fixing plate. A plurality of expansion bolts are equidistantly penetrated through the inner wall of the fixing plate. A rain collection cloth is fixedly connected to the front end of the fixing plate. The left and right bottom ends of the rain collection cloth are respectively penetrated and rotatably connected with a rotating shaft. A plurality of folding skeletons are equidistantly rotatably connected to the outer walls of the two rotating shafts. A limiting rope is fixedly connected between adjacent ones of the plurality of folding skeletons. Meshing grooves are fixedly connected to the front sides of the bottoms of the two bottom folding skeletons. A carrier plate is fixedly connected to the middle of the rear side of the rain collection cloth. A double-headed motor is fixedly connected to the middle of the top wall of the carrier plate. Two winding wheels are fixedly connected to the two output ends of the double-headed motor. Pulley wheels are fixedly connected to the left and right top ends of the rain collection cloth respectively. Steel ropes are arranged on the outer walls of the two winding wheels. The two steel ropes are respectively attached to the outer walls of the two pulley wheels and are respectively fixedly connected to the far ends of the two meshing grooves away from each other. A filtering mechanism is arranged on the left side of the bottom end of the rain collection cloth.
[0007] As a further description of the above technical solution:
[0008] The filtering mechanism includes a diversion pipe, the bottom end of the diversion pipe is communicated with a sedimentation tank, two upper partition plates are fixedly connected to the inner wall of the sedimentation tank, a plurality of leakage holes are formed in the outer walls of the two upper partition plates, a dust collection groove is slidably connected to the bottom end of the inner wall of the sedimentation tank, two lower partition plates are fixedly connected to the inner wall of the dust collection groove, the bottom ends of the two upper partition plates are respectively attached to the top ends of the two lower partition plates, a water pump is fixedly connected to the left side of the top wall of the sedimentation tank, and an output pipe is communicated with the middle of the top end of the water pump.
[0009] As a further description of the above technical solution:
[0010] A solar panel is fixedly connected to the bottom wall of the rain collection cloth, a storage battery is fixedly connected to the bottom end of the rear side of the rain collection cloth, and the solar panel is electrically connected to the storage battery.
[0011] As a further description of the above technical solution:
[0012] A handle is fixedly connected to the right side of the sedimentation tank, and the outer wall of the handle is made of a frosted material.
[0013] As a further description of the above technical solution:
[0014] A filter element is fixedly installed at the bottom end of the output pipe, and the filter element is a replaceable module.
[0015] As a further description of the above technical solution:
[0016] Anti-slip lines are formed on the outer walls of a plurality of expansion bolts, and the plurality of anti-slip lines are distributed in a cross-shaped network.
[0017] As a further description of the above technical solution:
[0018] The inner bottom wall of the rain collection cloth is in an inclined state when unfolded, and the material of the rain collection cloth is a foldable waterproof material.
[0019] As a further description of the above technical solution:
[0020] The rain collection cloth, the double-headed motor and the rope winding wheel are symmetrically designed, and the folding track of the rain collection cloth adopts a fan-shaped design.
[0021] The utility model has the following beneficial effects:
[0022] 1. In the present utility model, a double-headed motor drives the rope winding wheels at both ends to rotate, enabling the folding framework inside the rain collection cloth to extend forward and backward, and at the same time enabling the rain collection cloth to open and close. When not in use for collection, it neither affects the appearance of the building nor occupies extra space, and can be ready to unfold for rainwater collection at any time during the next rainfall, reducing the space occupation and the impact on the building appearance.
[0023] 2. In the present utility model, two upper partition plates in the precipitation chamber initially block and divert the rainwater. When flowing through the upper partition plates, due to the action of gravity, larger impurities and particulate matters will precipitate downward, achieving the initial filtration and precipitation of the rainwater and providing better basic conditions for subsequent further treatment. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 is a perspective view of the rainwater collection board on the building facade proposed by the present utility model;
[0025] Figure 2 is a schematic structural view of the folding framework of the rainwater collection board on the building facade proposed by the present utility model;
[0026] Figure 3 is a rear view of the rainwater collection board on the building facade proposed by the present utility model;
[0027] Figure 4 is a cross-sectional view of the precipitation chamber of the rainwater collection board on the building facade proposed by the present utility model;
[0028] Figure 5 is a bottom view of the rainwater collection board on the building facade proposed by the present utility model.
[0029] LEGEND DESCRIPTION:
[0030] 1. Fixed plate; 2. Filtration mechanism; 201. Diversion pipe; 202. Precipitation chamber; 203. Upper partition plate; 204. Leakage hole; 205. Dust collection groove; 206. Lower partition plate; 207. Water pump; 208. Output pipe; 3. Expansion bolt; 4. Rain collection cloth; 5. Rotating shaft; 6. Folding framework; 7. Limiting rope; 8. Meshing groove; 9. Carrier plate; 10. Double-headed motor; 11. Rope winding wheel; 12. Pulley; 13. Steel wire rope; 14. Solar panel; 15. Storage battery; 16. Handle; 17. Filter element; 18. Anti-slip pattern. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0032] Referring to Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the present invention: a rainwater collection board for the building facade, including a fixing plate 1, a plurality of expansion bolts 3 are equidistantly penetrated through the inner wall of the fixing plate 1, a rain collection cloth 4 is fixedly connected to the front end of the fixing plate 1, the left and right bottom ends of the rain collection cloth 4 are respectively penetrated and rotatably connected with a rotating shaft 5, a plurality of folding skeletons 6 are equidistantly rotatably connected to the outer walls of the two rotating shafts 5, a limiting rope 7 is fixedly connected between adjacent ones of the plurality of folding skeletons 6, engaging grooves 8 are fixedly connected to the front sides of the bottoms of the two bottom folding skeletons 6, a carrier plate 9 is fixedly connected to the middle of the rear side of the rain collection cloth 4, a double-headed motor 10 is fixedly connected to the middle of the top wall of the carrier plate 9, two winding wheels 11 are fixedly connected to the two output ends of the double-headed motor 10, pulleys 12 are fixedly connected to the left and right top ends of the rain collection cloth 4, steel ropes 13 are arranged on the outer walls of the two winding wheels 11, the two steel ropes 13 are respectively attached to the outer walls of the two pulleys 12 and are respectively fixedly connected to the far ends of the two engaging grooves 8 away from each other, and a filtering mechanism 2 is arranged on the left side of the bottom end of the rain collection cloth 4;
[0033] Specifically, when it rains, rainwater will fall on the rain-collecting cloth 4 fixed on the exterior facade of the building by the fixing plate 1. Since the rain-collecting cloth 4 has a large area and can effectively receive rainwater, the multiple folding frames 6 on both sides thereof play the role of supporting and expanding the rain-collecting area. Under normal circumstances, the folding frames 6 are in a folded and contracted state to reduce the occupied space and the impact on the appearance of the building. When it is necessary to collect rainwater, the double-headed motor 10 on the carrier plate 9 is started, so that the two output ends of the double-headed motor 10 drive the rope wheel 11 to rotate, and the rope wheel 11 begins to retract and release the steel rope 13. The steel rope 13 changes direction after passing through the pulleys 12 at the top of the left and right sides of the rain-collecting cloth 4, and is respectively connected to the two meshing grooves 8. As the rope wheel 11 rotates, the steel rope 13 is gradually tightened, and the tension of the steel rope 13 acts on the meshing groove 8, thereby driving the two bottom folding frames 6 to stretch forward. At the same time, each folding frame 6 is connected by a limiting rope 7. When the folding frame 6 at the bottom is stretched, the adjacent The folding frame 6 is unfolded in sequence under the restriction and tension of the limiting rope 7, thereby stretching out the rain-collecting cloth 4, expanding the rain-collecting area and improving the efficiency of rainwater collection. Multiple expansion bolts 3 firmly fix the fixing plate 1 on the building facade, ensuring that the entire rainwater collecting plate remains stable during operation and will not loosen or fall off due to factors such as the impact of rainwater or wind. The design of the rotating shaft 5 enables the folding frame 6 to rotate flexibly during the unfolding and contraction process, reducing mechanical resistance and ensuring smooth operation. When the rain ends and rainwater collection is no longer needed, the double-headed motor 10 rotates in the opposite direction, and the rope wheel 11 releases the steel rope 13. The folding frame 6 is gradually folded and retracted under the action of its own gravity and the contraction force of the rain-collecting cloth 4, and returns to its initial compact state, which does not affect the appearance of the building and can be ready to be unfolded at any time for rainwater collection work when it rains next time, thereby reducing the occupation of space when rainwater is not collected and reducing the impact on the appearance of the building.
[0034] Reference Figure 3 and Figure 4 The filtering mechanism 2 includes a guide pipe 201, the bottom end of which is connected to a sedimentation bin 202, the inner wall of which is fixedly connected to two upper baffles 203, the outer walls of the two upper baffles 203 are provided with a plurality of leakage holes 204, the bottom end of the inner wall of the sedimentation bin 202 is slidably connected to a dust collecting groove 205, the inner wall of the dust collecting groove 205 is fixedly connected to two lower baffles 206, the bottom ends of the two upper baffles 203 are respectively fitted with the top ends of the two lower baffles 206, the left side of the top wall of the sedimentation bin 202 is fixedly connected to a water pump 207, and the middle part of the top end of the water pump 207 is connected to an output pipe 208;
[0035] Specifically, after being collected, rainwater will enter the filtering mechanism 2 for processing, and then flow into the sedimentation bin 202 through the guide pipe 201. The two upper partitions 203 in the sedimentation bin 202 play a role of preliminary blocking and diversion. When the rainwater flows through the upper partition 203, the larger impurities and particles therein are slowed down due to gravity and precipitate downward, and the clearer rainwater flows into the middle space through the multiple leak holes 204 on the upper partition 203. After repeated precipitation, most of the precipitated impurities will fall into the dust collecting tank 205 at the bottom. The two lower partitions 203 in the dust collecting tank 205 The partition 206 cooperates with the upper partition 203 to block impurities that have not been completely precipitated and ensure the sedimentation effect. Since the dust collecting trough 205 is slidably connected to the bottom end of the inner wall of the sedimentation bin 202, it is convenient to extract the dust collecting trough 205 for cleaning when the impurities accumulate to a certain extent. After the rainwater has undergone preliminary sedimentation treatment, the water pump 207 on the left side of the top wall of the sedimentation bin 202 will extract the preliminarily filtered rainwater and transport it to the subsequent processing link through the output pipe 208 connected to the middle of the top, thereby realizing the preliminary filtration and sedimentation of the rainwater, providing a better basic condition for subsequent further treatment.
[0036] Reference Figure 3 , Figure 4 and Figure 5 The bottom wall of the rain-collecting cloth 4 is fixedly connected with a solar panel 14, and the rear bottom end of the rain-collecting cloth 4 is fixedly connected with a battery 15, and the solar panel 14 is electrically connected to the battery 15; the right side of the sedimentation bin 202 is fixedly connected with a handle 16, and the outer wall of the handle 16 is made of frosted material; the bottom end of the output pipe 208 is fixedly installed with a filter element 17, and the filter element 17 is a replaceable module;
[0037] Specifically, the solar panel 14 can convert solar energy into electrical energy and store it in the battery 15, which can provide power support for the water pump 207 and the double-headed motor 10, thereby achieving energy self-sufficiency and reducing dependence on external power sources. The handle 16 on the right side of the sedimentation bin 202 is made of frosted material, which is convenient for the operator to pull out the sedimentation bin 202 for cleaning and maintenance, thereby increasing the convenience and comfort of operation. At the same time, the frosted material can provide better grip friction to prevent hand slippage. The filter element 17 at the bottom of the output pipe 208 can further filter the rainwater that has undergone preliminary sedimentation treatment, remove finer impurities and pollutants, and improve the water quality of the rainwater, making it more suitable for subsequent use or storage. Since the filter element 17 is a replaceable module, it is convenient to replace the filter element 17 when it fails or is blocked, thereby ensuring the continuity of the filtering effect.
[0038] Reference Figure 1 , Figure 2 and Figure 3The outer walls of the plurality of expansion bolts 3 are provided with anti-skid patterns 18, and the plurality of anti-skid patterns 18 are distributed in a cross-net pattern; the inner bottom wall of the rain-collecting cloth 4 is in an inclined state when unfolded, and the material of the rain-collecting cloth 4 is a foldable waterproof material; the rain-collecting cloth 4, the double-headed motor 10 and the rope winding wheel 11 are symmetrically designed, and the folding track of the rain-collecting cloth 4 adopts a fan-shaped design;
[0039] Specifically, the cross-mesh distributed anti-slip grooves 18 increase the friction between the expansion bolts 3 and the building facade, making the fixation of the fixing plate 1 more firm and reliable, and able to withstand various forces and vibrations of the rainwater collecting plate during operation, thereby improving the stability and safety of the entire device. The rain-collecting cloth 4 has good waterproof performance to ensure that rainwater will not leak. When unfolded, the inner bottom wall is in an inclined state, which is conducive to the rapid flow of rainwater to the collection position and improves the collection efficiency. The symmetrical design of the rain-collecting cloth 4, the double-headed motor 10 and the rope winding wheel 11 and the fan-shaped folding trajectory of the rain-collecting cloth 4 ensure the balance and stability of the rainwater collecting plate during the unfolding and folding process, making the operation smoother and also making the appearance of the entire device more beautiful and neat.
[0040] Working principle: when it rains, rainwater will fall on the rain-collecting cloth 4 fixed on the facade of the building by the fixing plate 1. Since the rain-collecting cloth 4 has a large area, it can effectively receive rainwater. The multiple folding frames 6 on both sides thereof play the role of supporting and expanding the rain-collecting area. Under normal circumstances, the folding frames 6 are in a folded and contracted state to reduce the occupied space and the impact on the appearance of the building. When it is necessary to collect rainwater, the double-headed motor 10 on the carrier plate 9 is started, so that the two output ends of the double-headed motor 10 drive the rope wheel 11 to rotate, and the rope wheel 11 starts to retract and release the steel rope 13. The steel rope 13 changes direction after passing through the pulleys 12 at the top of the left and right sides of the rain-collecting cloth 4, and is respectively connected to the two meshing grooves 8. As the rope wheel 11 rotates, the steel rope 13 is gradually tightened, and the tension of the steel rope 13 acts on the meshing groove 8, thereby driving the two bottom folding frames 6 to stretch forward. At the same time, each folding frame 6 is connected by the limit rope 7 When the folding frame 6 at the bottom is extended, the adjacent folding frames 6 are unfolded in sequence under the restriction and tension of the limiting rope 7, so that the rain collecting cloth 4 is stretched out, the rain collecting area is expanded, and the efficiency of rainwater collection is improved. Multiple expansion bolts 3 firmly fix the fixing plate 1 on the building facade, ensuring that the entire rainwater collecting plate remains stable during operation and will not loosen or fall off due to factors such as the impact of rainwater or wind. The design of the rotating shaft 5 enables the folding frame 6 to rotate flexibly during the expansion and contraction process, reduces mechanical resistance, and ensures smooth operation. When the rain ends and rainwater collection is no longer needed, the double-headed motor 10 rotates in the opposite direction, and the rope wheel 11 releases the steel rope 13. The folding frame 6 is gradually folded and retracted under the action of its own gravity and the contraction force of the rain collecting cloth 4, and returns to its initial compact state, which does not affect the appearance of the building and can be ready to be unfolded for rainwater collection at any time when it rains next time.
[0041] Moreover, the rainwater will enter the filtering mechanism 2 for treatment after being collected. It flows into the precipitation bin 202 through the diversion pipe 201. The two upper partitions 203 in the precipitation bin 202 play a role in preliminary blocking and diversion. When the rainwater flows through the upper partition 203, the larger impurities and particulate matters slow down due to gravity and precipitate downward. The relatively clear rainwater flows through the multiple leakage holes 204 on the upper partition 203 into the space in the middle. After repeating the precipitation process once again, most of the precipitated impurities will fall into the dust collection tank 205 at the bottom. The two lower partitions 206 in the dust collection tank 205 cooperate with the upper partition 203 to block the impurities that have not been completely precipitated and ensure the precipitation effect. Since the dust collection tank 205 is slidably connected to the bottom end of the inner wall of the precipitation bin 202, it is convenient to pull out the dust collection tank 205 for cleaning when the impurities accumulate to a certain extent. When the rainwater has undergone preliminary precipitation treatment, the water pump 207 on the left side of the top wall of the precipitation bin 202 pumps out the preliminarily filtered rainwater and conveys it to the subsequent treatment link through the output pipe 208 connected to the middle of the top end, realizing the preliminary filtration and precipitation of the rainwater and providing better basic conditions for the subsequent further treatment.
[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A rainwater collection plate for a building facade, comprising a fixing plate (1), characterized in that: The inner wall of the fixing plate (1) is equidistantly penetrated with a plurality of expansion bolts (3); the front end of the fixing plate (1) is fixedly connected to a rain-collecting cloth (4); the left and right bottom ends of the rain-collecting cloth (4) are penetrated and rotatably connected with a rotating shaft (5); the outer walls of the two rotating shafts (5) are equidistantly rotatably connected with a plurality of folding frames (6); the adjacent plurality of folding frames (6) are fixedly connected with a limiting rope (7); the front sides of the bottom ends of the two bottom ends of the folding frames (6) are fixedly connected with an engagement groove (8); the middle part of the rear side of the rain-collecting cloth (4) is fixedly connected with a carrier plate (9); the carrier plate (9 ) is fixedly connected to the middle of the top wall of the rain collecting cloth (4), the two output ends of the double-headed motor (10) are fixedly connected to the rope winding wheel (11), the top ends of the left and right sides of the rain collecting cloth (4) are fixedly connected to the pulley (12), the outer walls of the two rope winding wheels (11) are provided with steel ropes (13), the two steel ropes (13) are respectively attached to the outer walls of the two pulleys (12) and are respectively fixedly connected to the ends of the two meshing grooves (8) that are far away from each other, and a filtering mechanism (2) is provided on the left side of the bottom end of the rain collecting cloth (4), and the filtering mechanism (2) is used to filter the collected rainwater.
2. The rainwater collection plate for building facade according to claim 1, characterized in that: The filtering mechanism (2) comprises a guide pipe (201), the bottom end of the guide pipe (201) is connected to a sedimentation bin (202), the inner wall of the sedimentation bin (202) is fixedly connected to two upper partitions (203), the outer walls of the two upper partitions (203) are each provided with a plurality of leakage holes (204), the bottom end of the inner wall of the sedimentation bin (202) is slidably connected to a dust collecting trough (205), the inner wall of the dust collecting trough (205) is fixedly connected to two lower partitions (206), the bottom ends of the two upper partitions (203) are respectively in contact with the top ends of the two lower partitions (206), the left side of the top wall of the sedimentation bin (202) is fixedly connected to a water pump (207), and the middle part of the top end of the water pump (207) is connected to an output pipe (208).
3. The rainwater collection plate for building facade according to claim 1, characterized in that: A solar panel (14) is fixedly connected to the bottom wall of the rain-collecting cloth (4), a storage battery (15) is fixedly connected to the rear bottom end of the rain-collecting cloth (4), and the solar panel (14) is electrically connected to the storage battery (15).
4. The building facade rainwater collection plate according to claim 2, characterized in that: A handle (16) is fixedly connected to the right side of the sedimentation bin (202), and the outer wall of the handle (16) is made of frosted material.
5. The building facade rainwater collection plate according to claim 2, characterized in that: A filter element (17) is fixedly mounted on the bottom end of the output pipe (208), and the filter element (17) is a replaceable module.
6. The rainwater collection plate for building facade according to claim 1, characterized in that: The outer walls of the plurality of expansion bolts (3) are provided with anti-slip grooves (18), and the plurality of anti-slip grooves (18) are distributed in a cross-net pattern.
7. The rainwater collection plate for building facade according to claim 1, characterized in that: The inner bottom wall of the rain-collecting cloth (4) is in an inclined state when unfolded, and the material of the rain-collecting cloth (4) is a foldable waterproof material.
8. The rainwater collection plate for building facade according to claim 1, characterized in that: The rain-collecting cloth (4), the double-headed motor (10) and the rope-winding wheel (11) are symmetrically designed, and the folding track of the rain-collecting cloth (4) is fan-shaped.