Rainwater collection system

Abstract

This utility model discloses a rainwater harvesting system, including multiple water collection buckets for collecting rainwater and a pipe assembly disposed between two adjacent water collection buckets. The multiple water collection buckets are used to be placed in different locations in the forest. The pipe assembly includes an overflow pipe, the first end of which is connected to the upper part of one of the water collection buckets, and the second end of which is connected to the upper part of another water collection bucket. The rainwater harvesting system provided by this utility model connects multiple water collection buckets through the pipe assembly. When any water collection bucket is full, it can automatically overflow to other surrounding water collection buckets through the overflow pipe, realizing automatic and uniform distribution of rainwater and avoiding rainwater overflow and waste. Thus, by having multiple water collection buckets work together to collect more rainwater, the system can effectively increase the amount of rainwater collected and stored, achieving the purpose of fire prevention and disaster relief. Furthermore, due to the sufficient water storage capacity, it can also be used for other purposes such as agricultural water, industrial water, domestic water, and fishery water.

Description

Technical Field

[0001] This utility model relates to the field of rainwater harvesting technology, and in particular, to a rainwater harvesting system. Background Technology

[0002] Forest fire fighting is a comprehensive disaster prevention system with the core tasks of preventing, monitoring and fighting forest fires, and protecting forest resources, wild animals and plants and ecosystems. In order to control forest fires in a timely manner, water sources need to be set up nearby in different geographical locations. Therefore, rainwater harvesting devices are usually introduced to collect rainwater as a water source reserve, so that the fire response can be more rapid.

[0003] In response, Chinese utility model patent CN221721775U provides a forest fire prevention rainwater collection and storage device, including a barrel body. A connecting ring is located on the upper part of the barrel body. A first filter screen is located above the connecting ring, and a second filter screen is located below the connecting ring. The mesh size of the second filter screen is smaller than that of the first filter screen. Both the first and second filter screens are conical in shape and symmetrically arranged. By using the first and second filter screens, rainwater can be doubly filtered, effectively collecting clean rainwater into the barrel body for convenient use. However, because this forest fire prevention rainwater collection and storage device is independently set up, the capacity of a single barrel is limited, resulting in insufficient rainwater storage, making it difficult to effectively fight fires in the face of large-scale fires. Utility Model Content

[0004] This invention provides a rainwater harvesting system to solve the technical problem of limited rainwater storage capacity in existing rainwater harvesting devices.

[0005] According to one aspect of the present invention, a rainwater harvesting system is provided, comprising a plurality of water collection buckets for collecting rainwater and a pipe assembly disposed between two adjacent water collection buckets, wherein the plurality of water collection buckets are disposed at different locations in a forest, and the pipe assembly includes an overflow pipe, wherein a first end of the overflow pipe is connected to the upper part of one of the water collection buckets and a second end of the overflow pipe is connected to the upper part of another water collection bucket.

[0006] Preferably, the pipe assembly further includes a drain pipe and a drain valve disposed on the drain pipe, a first end of the drain pipe being connected to the lower part of one of the water collection tanks, and a second end of the drain pipe being connected to another water collection tank.

[0007] Preferably, the pipe assembly further includes a confluence pipe, wherein in two adjacent water collection tanks, the first end of the overflow pipe and the first end of the drain pipe are connected to the same water collection tank, the second end of the overflow pipe and the second end of the drain pipe are both connected to the first end of the confluence pipe, and the second end of the confluence pipe is connected to the upper part of another water collection tank.

[0008] Preferably, the pipe assembly further includes sealing rings respectively fitted on the overflow pipe, the drain pipe and the confluence pipe, the sealing rings being used to insert into the corresponding openings on the water collection tank.

[0009] Preferably, the water collection bucket includes a first water collection bucket and a second water collection bucket. The first water collection bucket is provided with a water collection component for collecting external rainwater into the first water collection bucket. The second water collection bucket is used to collect rainwater in the first water collection bucket through the pipe component. At least one second water collection bucket is provided between two adjacent first water collection buckets.

[0010] Preferably, the rainwater harvesting system includes multiple layers of water collection groups arranged sequentially along the height direction in the forest. Each layer of water collection group includes at least one water collection bucket. In two adjacent layers of water collection groups, the number of water collection buckets in the upper layer of water collection group is greater than the number of water collection buckets in the lower layer of water collection group.

[0011] Preferably, the rainwater harvesting system includes multiple layers of water collection groups arranged sequentially along the height direction in the forest. Each layer of water collection group includes at least one water collection bucket. In two adjacent layers of water collection groups, the capacity of the water collection bucket in the upper layer of water collection group is greater than the capacity of the water collection bucket in the lower layer of water collection group.

[0012] Preferably, the rainwater harvesting system further includes a bucket lid assembly; The first water collection tank has a receiving cavity for storing rainwater, and the top of the receiving cavity has an opening; The bucket lid assembly includes an outer lid and an inner lid. The outer lid is placed over the opening and has a water-blocking strip around its circumference. The water-blocking strip is used to enclose a water collection groove on the top surface of the outer lid. A water intake hole communicating with the receiving cavity is opened in the water collection groove. The outer lid also has a supporting flange surrounding the water intake hole in the water collection groove. The inner lid is movably placed on the supporting flange and is used to block the water intake hole. A first water inlet hole is opened on the side wall of the supporting flange. The water collection assembly includes a plurality of water collection blades arranged around the outer cover. The water collection blades are snapped onto the water baffle strip and are used to guide rainwater falling onto the water collection blades into the water collection trough. There is a gap between two adjacent water collection blades.

[0013] Preferably, the top surface of the inner cover is lower than the height of the water-blocking strip. The inner cover has a second water inlet hole. The inner cover includes a rotating shaft horizontally disposed in the second water inlet hole, a baffle rotatably mounted on the rotating shaft, and a return spring sleeved on the rotating shaft and elastically abutting against the baffle. The return spring is used to elastically drive the baffle to rotate to the state of blocking the second water inlet hole. When the rainwater on its upper surface reaches a preset amount, the baffle is used to overcome the elastic force of the return spring by the weight of the rainwater and rotate downward relative to the rotating shaft to open the second water inlet hole.

[0014] Preferably, the bucket lid assembly further includes a first filter screen that covers the inner lid and is integrally connected to the inner lid. The outer periphery of the first filter screen is provided with a connecting arm. The outer lid is provided with a connecting hole on one side of the supporting flange. The connecting arm is provided with a rotating hole for a bolt to pass through and be installed on the connecting hole. The first filter screen is used to rotate relative to the bolt through the rotating hole, thereby driving the inner lid to move and open / close. The rainwater harvesting system also includes a second filter screen, which is positioned above the first filter screen and covers the connection between the water collection assembly and the outer cover.

[0015] This utility model has the following beneficial effects: The rainwater harvesting system provided by this utility model includes multiple water collection tanks. Adjacent water collection tanks are connected by a pipe assembly, and the multiple water collection tanks are connected in series or in parallel to form a whole. When the rainwater in any water collection tank is full, it can automatically overflow to other surrounding water collection tanks through an overflow pipe, realizing automatic and uniform distribution of rainwater and avoiding rainwater overflow and waste. Thus, by having multiple water collection tanks work together to collect more rainwater, the collection and storage capacity can be effectively increased, ensuring sufficient water supply and achieving the purpose of fire prevention and disaster relief. In addition, due to the sufficient water storage capacity, it can also be used for other purposes such as agricultural water, industrial water, domestic water, and fishery water.

[0016] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 A schematic diagram of the structure of the rainwater harvesting system provided in this embodiment of the utility model; Figure 2 for Figure 1A schematic diagram of the assembly structure of the first water collection tank and water collection components in the rainwater harvesting system shown. Figure 3 for Figure 2 The exploded view of the first water collection tank and water collection assembly after removing some of the water collection blades is shown. Figure 4 for Figure 3 The diagram shows the usage status of the bucket lid assembly on the first water collection bucket. Figure 5 for Figure 3 The diagram shown illustrates the usage status of the inner lid on the first water collection bucket. Figure 6 A cross-sectional view of a bucket lid assembly provided in another embodiment of the present utility model; Figure 7 for Figure 3 A perspective view of the water collecting blades in the water collecting assembly from another angle; Figure 8 This is a schematic diagram of the structure of the water collecting blade provided in another embodiment of the present invention; Figure 9 for Figure 8 The diagram shows the structure of the water collecting blade at another angle.

[0018] Legend: 1000. Rainwater harvesting system; 1. Water collection tank; 101. First water collection tank; 102. Second water collection tank; 11. Interlocking tank body; 111. Support ring; 112. Through hole; 113. Weak section; 1131. First weak section; 1132. Second weak section; 114. Sealing structure; 115. Reinforcing rib; 12. Base plate; 2. Bucket lid assembly; 21. Outer lid; 211. Water baffle strip; 2111. Slot; 212. Water collection trough; 213. Water inlet hole; 214. Support flange; 2141. First water inlet hole; 215. Connecting hole; 216. Insertion hole; 217. Third water inlet hole; 218. Limiting hole; 219. Limiting ring; 22. Inner lid; 221. Second water inlet hole; 222. Rotating shaft; 223. Baffle; 224. Limiting groove; 225. Connecting hole; 23. First filter screen; 231. Connecting arm; 2311. Rotating hole; 24. Bolt; 3. Water collection assembly; 31. Water collection blade; 311. Limiting pin; 3111. Threaded segment; 3112. Limiting segment; 312. Hook; 313. Water-blocking flange; 314. First blade; 3141. First slide rail; 315. Second blade; 3151. Second slide rail; 4. Second filter screen; 41. Pin; 5. Sealing cover; 6. Piping components; 61. Overflow pipe; 62. Drain pipe; 63. Drain valve; 64. Combination pipe. Detailed Implementation

[0019] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] Those skilled in the art will understand that, unless specifically stated otherwise, the term "comprising" as used in this specification means the presence of the stated features, integers, steps, operations, components, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, components, components, and / or combinations thereof. It should be understood that when we say a component is "connected" to another component, it can be directly connected to the other component or connected via an intermediate component. The term "and / or" as used herein includes all or any unit and all combinations of one or more associated listed items. The terms "first" and "second," etc., in this specification and claims are used to distinguish different objects, not to describe a particular order.

[0021] Figures 1 to 9 The present invention provides a rainwater harvesting system for collecting rainwater to achieve rainwater recycling. It can achieve rainwater harvesting operations over a large area, effectively increase the amount of rainwater collected and stored, ensure sufficient rainwater storage, and has a simple, efficient, and low-cost overall structure with good performance.

[0022] like Figure 1 As shown, the rainwater harvesting system 1000 includes multiple water collection tanks 1 and a pipe assembly 6. The multiple water collection tanks 1 are used to collect rainwater at different locations in the forest. The pipe assembly 6 is located between two adjacent water collection tanks 1 and connects the multiple water collection tanks 1 into a whole. The pipe assembly 6 includes an overflow pipe 61. The first end of the overflow pipe 61 is connected to the upper part of one of the water collection tanks 1, and the second end of the overflow pipe 61 is connected to the upper part of another water collection tank 1. It should be understood that the upper part of the water collection tank 1 refers to the top of the inner cavity of the water collection tank 1 or the position from the middle upwards near the top. Correspondingly, the lower part of the water collection tank 1 refers to the bottom of the inner cavity of the water collection tank 1 or the position from the middle downwards near the bottom.

[0023] Specifically, the rainwater harvesting system 1000 includes multiple water collection tanks 1, with adjacent water collection tanks 1 connected by the pipe assembly 6. The multiple water collection tanks 1 are connected in series or in parallel to form a whole through the pipe assembly 6. When the rainwater in any water collection tank 1 is full, it can automatically overflow to other surrounding water collection tanks 1 through the overflow pipe 61, realizing automatic and uniform distribution of rainwater and avoiding rainwater overflow and waste. Thus, multiple water collection tanks 1 can work together to collect more rainwater, effectively increasing the amount of rainwater collected and stored, ensuring sufficient water supply, and achieving the purpose of fire prevention and disaster relief. In addition, due to the sufficient water storage, it can also be used for other purposes such as agricultural water, industrial water, domestic water, and fishery water.

[0024] Preferably, the pipe assembly 6 further includes a drain pipe 62 and a drain valve 63 disposed on the drain pipe 62. The first end of the drain pipe 62 is connected to the lower part of one of the water collection tanks 1, and the second end of the drain pipe 62 is connected to another water collection tank 1. The drain valve 63 is used to control the opening and closing of the drain pipe 62.

[0025] Specifically, due to the varying elevations in the forest environment, the installation heights of the water collection buckets 1 differ at different locations. Rainwater from the higher-positioned water collection buckets 1 can flow along the drain pipe 62 to the lower-positioned water collection buckets 1. In this embodiment, the drain valve 63 is normally closed to prevent direct loss of rainwater from the water collection buckets 1. When a large amount of water needs to be drawn from one of the water collection buckets 1, the drain valve 63 on other water collection buckets 1 that are installed at a higher elevation can be opened. At this time, the rainwater from the other water collection buckets 1 can automatically flow to the water collection bucket 1 that needs water under the action of gravity. This allows rainwater collected from multiple water collection buckets 1 to be drawn from one water collection bucket 1, effectively increasing the water intake. It is convenient and quick to use and can meet the firefighting needs of large-scale fires.

[0026] Furthermore, the drain valve 63 can be an electric valve or a manual valve. When the drain valve 63 is an electric valve, it can be remotely controlled to open and close, making it convenient and quick to connect different water collection tanks 1 and improve water use convenience. When the drain valve 63 is a manual valve, it can be manually opened and closed by the operator without the need for related power supply devices and remote signal transceivers. It has a simple and efficient structure, is easy to install in different forest environments, and is low in cost and durable.

[0027] In other embodiments, a water pump can also be installed on the drain pipe 62. In this case, both ends of the drain pipe 62 are connected to the lower parts of the two water collection tanks 1 respectively. The water pump is used to draw rainwater from one of the water collection tanks 1 to the other water collection tank 1, so that rainwater in the water collection tank 1 with a lower position can be drawn to the water collection tank 1 with a higher position. This allows the water collection tank 1 to not only draw rainwater from other water collection tanks 1 with a higher installation height, but also to draw rainwater from other water collection tanks 1 with a lower installation height, further increasing the water intake and meeting more water demand.

[0028] Preferably, the pipe assembly 6 further includes a confluence pipe 64. In two adjacent water collection tanks 1, the first end of the overflow pipe 61 and the first end of the drain pipe 62 are connected to the same water collection tank 1, and the second ends of the overflow pipe 61 and the drain pipe 62 are both connected to the first end of the confluence pipe 64. The second end of the confluence pipe 64 is connected to the upper part of the other water collection tank 1. By integrating the overflow pipe 61 and the drain pipe 62 through the confluence pipe 64, the second ends of the overflow pipe 61 and the drain pipe 62 do not need to extend to the other water collection tank 1. Thus, only one confluence pipe 64 is needed for most of the route between two adjacent water collection tanks 1, eliminating the need to connect the two water collection tanks 1 separately through two pipes, which facilitates long-distance pipe laying in forest environments.

[0029] Preferably, the pipe assembly 6 further includes sealing rings (not shown in the figure, the same below) respectively fitted onto the overflow pipe 61, the drain pipe 62, and the confluence pipe 64. The sealing rings are used to insert into the corresponding openings on the water collection tank 1. The sealing rings seal the connection ports of the overflow pipe 61, the drain pipe 62, and the confluence pipe 64, preventing rainwater in the water collection tank 1 from leaking out along the connection ports, thereby improving the sealing and waterproofing effect of the water collection tank 1.

[0030] Preferably, the water collection tank 1 includes a first water collection tank 101 and a second water collection tank 102. The first water collection tank 101 and the second water collection tank 102 have the same or different capacities. The first water collection tank 101 is provided with a water collection component 3 for collecting external rainwater into the first water collection tank 101. The second water collection tank 102 is used to collect rainwater in the first water collection tank 101 through the pipe component 6. At least one second water collection tank 102 is provided between two adjacent first water collection tanks 101. That is, the first water collection bucket 101 can collect external rainwater through the water collection component 3. When the rainwater in the first water collection bucket 101 is full, it can flow along the overflow pipe 61 to the adjacent second water collection bucket 102, and store the rainwater through the second water collection bucket 102, thereby expanding the water storage capacity of each first water collection bucket 101. It can also add more water collection points between two adjacent first water collection buckets 101, and water can be drawn from any first water collection bucket 101 or second water collection bucket 102, making it convenient to use water in different locations.

[0031] Furthermore, when multiple second water collection tanks 102 are provided between two adjacent first water collection tanks 101, the two adjacent second water collection tanks 102 can be connected in series or in parallel, and the specific connection method can be adjusted according to the terrain. Specifically, when two adjacent second water collection tanks 102 are at the same height, the corresponding two second water collection tanks 102 can be connected in parallel so that the rainwater from upstream can be evenly distributed into the two second water collection tanks 102, and more rainwater can be stored together; while when two adjacent second water collection tanks 102 are at different heights, the corresponding two second water collection tanks 102 can be connected in series so that the different second water collection tanks 102 can collect rainwater sequentially using the terrain, avoiding all the rainwater flowing to the second water collection tank 102 at a lower position.

[0032] Furthermore, the second water collection tank 102 is provided with a sealing cover 5, which is movably installed on the second water collection tank 102 to seal it. The sealing cover 5 also serves to expose the inner cavity of the second water collection tank 102 after opening, so as to collect water. Since the first water collection tank 101 is provided with the water collection component 3, it needs to be connected to the external environment. In hot weather, the rainwater in the first water collection tank 101 is prone to evaporate. This application collects the rainwater in the first water collection tank 101 through the second water collection tank 102 and provides a sealing cover 5 on the second water collection tank 102, which can effectively prevent the rainwater in the second water collection tank 102 from evaporating and ensure that the water storage capacity will not decrease significantly in hot weather, thereby achieving the purpose of fire prevention and disaster relief.

[0033] Preferably, the rainwater harvesting system 1000 includes multiple layers of water collection groups (not shown in the figure, the same below) arranged sequentially along the height direction in the forest. Each layer of water collection group includes at least one of the water collection buckets 1. In two adjacent layers of water collection groups, the number of water collection buckets 1 in the upper layer of water collection group is greater than the number of water collection buckets 1 in the lower layer of water collection group.

[0034] Specifically, since the lower-positioned water collection tank 1 can directly draw rainwater from the higher-positioned water collection tank 1 through the drain pipe 62, the lower-positioned water collection tank 1 can draw more rainwater from the higher-positioned water collection tank 1, while the higher-positioned water collection tank 1 can only draw less rainwater from the higher-positioned water collection tank 1. Therefore, this embodiment sets more water collection tanks 1 in the higher-positioned water collection group, effectively increasing the water storage capacity at higher levels and ensuring sufficient water storage at different heights.

[0035] Optionally, in two adjacent water collection groups, the capacity of the water collection tank 1 in the upper water collection group is greater than that in the lower water collection group, that is, the water collection tank 1 in the upper water collection group has a larger volume and can store more rainwater.

[0036] Please combine Figure 2 and Figure 3 The rainwater harvesting system 1000 also includes a bucket lid assembly 2. The first water collection bucket 101 has a receiving cavity for storing rainwater, and the top of the receiving cavity has an opening. The bucket lid assembly 2 includes an outer cover 21 and an inner cover 22. The outer cover 21 is placed over the opening. A water-blocking strip 211 is provided around the top surface of the outer cover 21. The water-blocking strip 211 is used to enclose and form a water collection groove 212 on the top surface of the outer cover 21. A water intake hole 213 communicating with the receiving cavity is provided in the water collection groove 212. The outer cover 21 is also provided with a supporting flange 214 surrounding the water intake hole 213 in the water collection groove 212. The inner cover 22 is movably placed on the supporting flange 214 and is used to block the water intake hole 213. A first water inlet hole 2141 is provided on the side wall of the supporting flange 214. The first water inlet hole 2141 is used to introduce rainwater in the water collection groove 212 into the receiving cavity.

[0037] Furthermore, the water collection assembly 3 includes a plurality of water collection blades 31 arranged around the outer cover 21. The water collection blades 31 are snapped onto the water baffle strip 211 and are used to guide rainwater falling onto the surface of the water collection blades 31 into the water collection trough 212. There is a gap between two adjacent water collection blades 31.

[0038] Specifically, the water collection component 3 is composed of multiple water collection blades 31 forming a petal structure surrounding the outer cover 21. This structure can collect a large amount of rainwater from the outer periphery of the first water collection bucket 101 into the water collection trough 212. At the same time, since there is a gap between two adjacent water collection blades 31, the gap can be used to guide the airflow, reduce wind resistance, and prevent the water collection component 3 from being blown over by lateral or downward winds, thus improving stability. Furthermore, it can effectively extend the radius of the water collection blades 31, increase the rainwater collection area of ​​the water collection blades 31, and increase the amount of rainwater collected. Secondly, rainwater from the water collection trough 212 is introduced into the receiving cavity of the water collection bucket 1 through the first water inlet 2141. Since the first water inlet 2141 is located on the side wall of the supporting flange 214, the upper part of the first water inlet 214 is completely blocked by the inner cover 22. This ensures smooth water intake while effectively preventing the receiving cavity of the first water collection bucket 101 from being exposed to direct sunlight and causing a large amount of rainwater to evaporate. Even if a small amount of rainwater evaporates, most of the evaporated water vapor will adhere to the inner cover 22 and drip back into the first water collection bucket 101, ensuring that the water storage capacity will not decrease significantly in hot weather, thus achieving the purpose of fire prevention and disaster relief. Furthermore, the cooperation between the inner cover 22 and the outer cover 21 not only prevents rainwater evaporation but also exposes the water intake hole 213 after opening the inner cover 22, facilitating quick water intake without having to move the relatively heavy outer cover 21, effectively improving ease of use.

[0039] Preferably, a plurality of first water inlet holes 2141 are arranged around the support flange 214 at intervals, and the bottom sidewall of the first water inlet hole 2141 is flush with the top surface of the outer cover 21, so that rainwater on the water collection tank 212 can flow fully into the receiving cavity of the first water collection bucket 101 along the first water inlet hole 2141.

[0040] Preferably, the top surface of the outer cover 21 is recessed in the direction toward the water intake hole 213, so that the rainwater in the water collection tank 212 can flow automatically toward the first water inlet hole 2141 under the action of gravity.

[0041] Please combine Figure 3 and Figure 5The top surface of the inner cover 22 is lower than the height of the water-blocking strip 211. The inner cover 22 has a second water inlet 221. The inner cover 22 includes a rotating shaft 222 horizontally disposed in the second water inlet 221, a baffle 223 rotatably mounted on the rotating shaft 222, and a return spring (not shown in the figure, the same below) sleeved on the rotating shaft 222 and elastically abutting against the baffle 223. The return spring is used to elastically drive the baffle 223 to rotate to the state of blocking the second water inlet 221. When the rainwater on its upper surface reaches a preset amount, the weight of the rainwater overcomes the elastic force of the return spring and rotates downward relative to the rotating shaft 222 to open the second water inlet 221.

[0042] In use, when there is no rainwater or only a small amount of rainwater on the upper surface of the baffle 223, the elastic force of the return spring drives the baffle 223 to close the second water inlet 221. At this time, the rainwater in the water collection tank 212 is introduced into the receiving cavity of the first water collection bucket 101 through the first water inlet 2141, preventing the receiving cavity of the first water collection bucket 101 from being directly exposed and effectively reducing rainwater evaporation. When the rainfall is large and the water collection exceeds the water inlet capacity of the first water inlet 2141, the rainwater will accumulate. The water in the collection trough 212 overflows onto the upper surface of the baffle 223. At this time, the weight of the rainwater can overcome the elastic force of the return spring and push the baffle 223 to rotate downwards to open the second water inlet 221, so that the rainwater can quickly enter the first water collection bucket 101 along the second water inlet 221, preventing the rainwater from overflowing. After the rainwater on the upper surface of the baffle 223 is drained, the baffle 223 can close the second water inlet 221 again under the elastic force of the return spring, achieving a sealing and blocking effect.

[0043] Furthermore, the rotating shaft 222 is horizontally positioned at the center of the second water inlet 221, and two baffles 223 are provided, which are respectively located on opposite sides of the rotating shaft 222. The opening and closing action of the second water inlet 221 is controlled by the two baffles 223, so that the baffles 223 only need to rotate a small angle to realize the large-area opening of the second water inlet 221, and the force on the return spring can be reduced, thereby improving the service life of the return spring.

[0044] Please combine Figure 3 and Figure 4 The bucket lid assembly 2 further includes a first filter screen 23, which covers the inner cover 22 and is connected to the inner cover 22 as a whole. The first filter screen 23 has mesh holes, which prevent impurities, leaves and other foreign objects in rainwater from entering the first water inlet 2141 and / or the second water inlet 221 through the filtering effect of the first filter screen 23.

[0045] Preferably, the outer periphery of the first filter screen 23 is provided with a connecting arm 231, and the outer cover 21 is provided with a connecting hole 215 on one side of the supporting flange 214. The connecting arm 231 is provided with a rotating hole 2311 for a bolt 24 to pass through and be installed on the connecting hole 215. The first filter screen 23 is used to rotate relative to the bolt 24 through the rotating hole 2311, thereby driving the inner cover 22 to move and open / close. The first filter screen 23 and the inner cover 22 are installed by the connecting arm 231, which prevents the first filter screen 23 and the inner cover 22 from detaching and being lost relative to the outer cover 21 after opening. At the same time, the cooperation between the connecting arm 231 and the thread 24 can form a rotating structure, which facilitates the overall rotation and opening / closing of the first filter screen 23 and the inner cover 22.

[0046] In one embodiment, the inner cover 22 is disposed on the top of the support flange 214 so that the first water inlet 2141 can smoothly introduce rainwater from the water collection tank 212 into the receiving cavity.

[0047] like Figure 6 As shown, in another embodiment, the inner cover 22 can also be embedded within the water intake hole 213. In this case, the outer cover 21 has a limiting ring 219 extending radially inward along the bottom edge of the water intake hole 213. The bottom end of the inner cover 22 has a limiting groove 224 that engages with the limiting ring 219. The engaging cooperation between the limiting groove 224 and the limiting ring 219 supports and limits the inner cover 22, preventing it from falling off. Since the inner cover 22 is embedded and hidden within the water intake hole 213, the installation strength and stability of the inner cover 22 are improved, preventing it from being blown away by strong winds and enhancing its applicability.

[0048] Furthermore, when the inner cover 22 is embedded in the water inlet 213, a connecting hole 225 for communicating with the first water inlet 2141 is provided on the side wall of the inner cover 22, so that rainwater in the water collection tank 212 can flow into the receiving cavity along the first water inlet 2141 and the connecting hole 225. Secondly, during dry periods, the position of the connecting hole 225 can be adjusted by rotating the inner cover 22, so that the connecting hole 225 is offset from the first water inlet 2141, thereby sealing the receiving cavity and preventing rainwater evaporation.

[0049] Furthermore, the mating hole 225 is located below the baffle 223 so that the baffle 223 can cover the mating hole 225.

[0050] It should be understood that in other embodiments, the mating hole 225 may not be provided on the inner cover 22 to improve the overall structural strength of the inner cover 22. In this case, the first water inlet hole 2141 can be set as an inverted "L" shaped structure (not shown in the figure, the same below). Specifically, the first water inlet hole 2141 includes a first segment opened horizontally on the side wall of the supporting flange 214, and a second segment connected to the first segment and extending vertically downward. The first segment and the second segment are both provided on the outer cover 21. The water inlet direction is turned downward by the cooperation of the first segment and the second segment, thereby avoiding the inner cover 22 and preventing the inner cover 22 from blocking the first water inlet hole 2141.

[0051] In other embodiments, the bucket lid assembly 2 may also have multiple inner lids 22. At least one inner lid 22 includes the rotating shaft 222, the baffle 223, and the return spring. Other inner lids 22 may be conventional lid structures, and the covering areas of the multiple inner lids 22 may be different. Further, the bucket lid assembly 2 also includes multiple water inlets 213 that correspond one-to-one with the covering areas of the multiple inner lids 22. The water inlets 213 are opened on the outer lid 21 or on an inner lid 22 with a larger area than the water inlet 213, and the multiple inner lids 22 are correspondingly placed on the multiple water inlets 213. For example, when multiple inner covers 22 include a first inner cover and a second inner cover with successively decreasing covering areas, the inner cover hole 213 of the first inner cover with a larger covering area is opened on the outer cover 21, and the inner cover hole 213 of the second inner cover with a smaller covering area is opened on the outer cover 21 and located on one side of the inner cover hole 213 of the first inner cover, or the inner cover hole 213 of the second inner cover is opened on the first inner cover, so that the first inner cover and the second inner cover are arranged side by side or nested with each other. Similarly, when there are more than two inner covers 22, two inner covers 22 with similar covering areas can be arranged side by side or nested with each other.

[0052] like Figure 2 As shown, the rainwater harvesting system 1000 also includes a second filter screen 4, which covers the outer cover 21 and blocks the connection between the water collection assembly 3 and the outer cover 21. The second filter screen 4 also has mesh openings, preventing impurities, leaves, and other foreign objects in the rainwater from entering the water collection tank 212, thus achieving a dual filtration effect in conjunction with the first filter screen 23.

[0053] like Figure 3As shown, the upper surface of the outer cover 21 is also provided with a plug hole 216, and the bottom of the second filter screen 4 is provided with a pin 41. The second filter screen 4 is plugged into the plug hole 216 through the pin 41, so as to realize the installation and fixation of the second filter screen 4 relative to the outer cover 21 and prevent the second filter screen 4 from being misaligned or falling off.

[0054] Furthermore, the mesh size of the first filter screen 23 is smaller than that of the second filter screen 4 to ensure that the second filter screen 4 has a larger water intake capacity, allowing rainwater to fully enter the water collection tank 212, and ensuring that the first filter screen 23 has a better protective effect, preventing rainwater from entering the first water collection bucket 101.

[0055] Furthermore, both the first filter screen 23 and the second filter screen 4 are designed as upwardly protruding hemispherical structures to increase their surface area, allowing them to collect more rainwater. This enables them to collect not only rainwater falling directly above but also some rainwater entering obliquely from the sides, increasing the rainwater collection volume. The hemispherical structure also guides debris to the sides, preventing it from clogging the mesh openings of the first filter screen 23 and the second filter screen 4. In other embodiments, the first filter screen 23 and / or the second filter screen 4 may also be designed as conical or pyramidal structures to increase their vertical height, allowing them to collect more rainwater entering obliquely from the sides and further increasing the rainwater collection volume.

[0056] Preferably, the surface of the outer cover 21 is provided with a plurality of third water inlet holes 217 between the supporting flange 214 and the water-blocking strip 211. The diameter of the third water inlet holes 217 is smaller than the diameter of the first water inlet hole 2141. Specifically, the diameter of the third water inlet holes 217 is less than 1 mm. By setting the third water inlet holes 217, the drainage capacity of the water collection tank 212 is enhanced, and because the diameter of the third water inlet holes 217 is small, rainwater in the first water collection bucket 101 will not evaporate quickly.

[0057] It should be understood that in other embodiments, the upper surface of the outer cover 21 may not be provided with the third water inlet 217, and water can be introduced only through the cooperation of the first water inlet 2141 and the second water inlet 221, which can also achieve a good rainwater collection effect.

[0058] Please combine Figure 3 and Figure 7The bottom of the water collecting blade 31 is provided with a limiting pin 311. The top surface of the water baffle 211 and / or the top surface of the outer cover 21 are provided with a limiting hole 218 at the outer side of the water baffle 211. The limiting pin 311 passes through the limiting hole 218 and the water collecting blade 31 is fixed by inserting the limiting pin 311. The assembly is convenient and quick.

[0059] Specifically, when the limiting hole 218 is opened on the top surface of the water-blocking strip 211, the depth of the limiting hole 218 can be increased by utilizing the height space of the water-blocking strip 211, thereby increasing the insertion depth of the limiting pin 311 and improving the stability of the water collecting blade 31; while when the limiting hole 218 is opened on the top surface of the outer cover 21, the limiting hole 218 is located on the outer side of the water-blocking strip 211, that is, the limiting hole 218 is located on the side of the water-blocking strip 211 away from the water collecting groove 212, avoiding rainwater in the water collecting groove 212 from soaking and corroding the mating structure of the limiting hole 218 and the limiting pin 311, and improving the durability of the water collecting blade 31.

[0060] Preferably, the bottom of the water collecting blade 31 is further provided with a hook 312, and the inner side wall of the water-blocking strip 211 is provided with a groove 2111, and the hook 312 is engaged with the groove 2111. Since the center of gravity of the water collecting blade 31 is located outside the outer cover 21, by hooking the groove 2111 in the opposite direction with the hook 312, and by using the hook 312 to cooperate with the limiting pin 311 to clamp the water-blocking strip 211, the water collecting blade 31 can be stably fixed and is not easy to loosen.

[0061] Furthermore, at least two of the limiting pins 311 and the hooks 312 are provided, and the water collecting blades 31 are installed and fixed by the cooperation of multiple limiting pins 311 and hooks 312, which further improves the installation strength and stability.

[0062] Preferably, the top of the first water collection tank 101 is provided with a support ring 111 extending radially outward. The support ring 111 is used to support the outer cover 21. The support ring 111 has a through hole 112 at the position corresponding to the limiting hole 218. The limiting pin 311 includes a threaded segment 3111 for passing through the through hole 112 and being tightened and fixed to the support ring 111 by a nut. The limiting hole 218 penetrates the outer cover 21, and the threaded segment 3111 can pass through the outer cover 21 and then through the through hole 112 to the bottom of the support ring 111. By installing a nut at the bottom of the support ring 111, the limiting pin 311 is tightened and fixed to the support ring 111. The limiting pin 311 can be used to connect the water collecting blade 31, the outer cover 21 and the first water collecting tank 101 into a whole in sequence. The water collecting blade 31 is fixed by the first water collecting tank 101, which enhances the installation strength of the water collecting blade 31 and also prevents the outer cover 21 from falling off relative to the first water collecting tank 101.

[0063] Furthermore, the limiting pin 311 also includes a limiting segment 3112 disposed between the water collecting blade 31 and the threaded segment 3111. The diameter of the limiting segment 3112 is larger than the diameter of the threaded segment 3111, so as to form a limiting step between the limiting segment 3112 and the threaded segment 3111. By the limiting step abutting against the end face of the limiting hole 218, the water collecting blade 31 can be limited in installation height, thereby accurately controlling the installation height of each water collecting blade 31, accurately controlling the height difference and gap size of two adjacent water collecting blades 31, and meeting the airflow guidance requirements of different geographical locations.

[0064] Preferably, the water collection assembly 3 includes one or two layers of blade groups, and the blade groups include a plurality of water collection blades 31 arranged around the outer cover 21; When the water collection assembly 3 includes a layer of blades, two adjacent water collection blades 31 are spaced apart in the circumferential direction. When the water collection assembly 3 includes two layers of blades, two adjacent water collection blades 31 in a single layer of blades are spaced apart circumferentially, and the two layers of blades are spaced apart longitudinally. The vertical projection of the water collection blade 31 in the upper layer of blades onto the lower layer of blades covers the gap between two adjacent water collection blades 31 in the lower layer of blades.

[0065] Specifically, in this embodiment, the water collection assembly 3 includes two layers of blades. These two layers of blades allow for a wider range of rainwater collection, and the longitudinal gap between them guides airflow, reducing wind resistance. In other embodiments, the water collection assembly 3 may also include only one layer of blades; the circumferential gap between adjacent water collection blades 31 can also guide airflow and reduce wind resistance.

[0066] Furthermore, the water collecting blade 31 is designed to be petal-shaped, fan-shaped, circular, elliptical, or other polygonal. The water collecting blade 31 adopts an arc-shaped structure with a concave center and tilted downward toward the water collecting trough 212, so that rainwater on the water collecting blade 31 can be gathered at the center and flow fully into the water collecting trough 212, avoiding splashing outward.

[0067] Furthermore, the upper surface edge of the water collecting blade 31 is provided with a water-blocking flange 313, and the water-blocking flange 313 has a notch along one end facing the water collecting groove 212. The water-blocking flange 313 prevents rainwater from flowing out to the outside of the water collecting blade 31, thereby further improving the rainwater collection effect.

[0068] Please combine Figure 8 and Figure 9 In another embodiment, the water collecting blade 31 may also adopt a folding structure. The water collecting blade 31 includes a first blade 314 and a second blade 315. The first blade 314 is mounted on the outer cover 21. The second blade 315 is movably connected to the first blade 314. The second blade 315 is used to move relative to the first blade 314 to adjust the overlapping area of ​​the second blade 315 relative to the first blade 314, thereby adjusting the overall water collecting area of ​​the water collecting blade 31.

[0069] The applicable scenarios for the folding and unfolding structure of the water-collecting blade 31 are as follows: When the rainwater collection system 1000 is applied to a forest environment with daily patrols, during dry periods without rain or during windy periods, patrol personnel can retract the second blade 315 to reduce the overall exposed area of ​​the water-collecting blade 31, preventing excessive branches, fallen leaves, animal excrement, and other foreign objects from falling onto the water-collecting blade 31. This also reduces the wind resistance of the water-collecting blade 31, preventing damage to the rainwater collection system 1000 due to strong winds. Secondly, patrol personnel can also unfold the second blade 315 according to the weather forecast when it is about to rain or when it is raining, expanding the overall water-collecting area of ​​the water-collecting blade 31, increasing the water collection volume, and thus improving the rainwater collection effect.

[0070] Furthermore, the bottom surface of the first blade 314 is provided with a first slide rail 3141, and the bottom surface of the second blade 315 is provided with a second slide rail 3151. The second blade 315 is disposed on the upper layer of the first blade 314 and slides in cooperation with the first slide rail 3141 through the second slide rail 3151 to achieve a sliding connection between the second blade 315 and the first blade 314. In use, the second blade 315 can be quickly pulled outward or retracted inward. The telescopic structure is simple, efficient, convenient, and quick to use. Moreover, the blade structure of the first blade 314 and the second blade 315 can be used to shield the first slide rail 3141 and the second slide rail 3151, achieving a dustproof and waterproof effect and preventing damage to the first slide rail 3141 and the second slide rail 3151. At the same time, installing the first slide rail 3141 and the second slide rail 3151 on the bottom surface of the blade will not interfere with the water collection operation on the upper surface of the blade, ensuring that the upper surface of the first blade 314 and the second blade 315 is clean and smooth, and improving the rainwater collection effect.

[0071] In other embodiments, the first slide rail 3141 and the second slide rail 3151 can be replaced with a hinge (not shown in the figure, the same below). The hinge is located between the first blade 314 and the second blade 315 so that the second blade 315 is hinged relative to the first blade 314. This allows the second blade 315 to be flipped and folded onto the first blade 314 along the hinge, or to be flipped and unfolded along the hinge to expand the outer side of the first blade 314 and expand the overall water collection area of ​​the water collecting blade 31. This also allows for flexible adjustment of the exposed area of ​​the water collecting blade 31 to meet different scenarios.

[0072] It should be understood that, in practical applications, by controlling parameters such as the shape, size, installation position and tilt angle of the water collecting blades 31, interference between two adjacent water collecting blades 31 can be avoided, ensuring that each water collecting blade 31 can be smoothly unfolded.

[0073] like Figure 3 As shown, the water collection tank 1 includes multiple modular tank bodies 11. Each modular tank body 11 is used to be spliced ​​with another modular tank body 11 along its circumference to form the sidewall of the water collection tank 1. In other words, the sidewall of the water collection tank 1 is divided into multiple modular tank bodies 11 along its circumference. Each modular tank body 11 can be independently produced and sold. Compared to a complete water collection tank 1, the modular tank bodies 11 are more convenient for stacking, storage, and transportation, effectively improving the transportation convenience of the water collection tank 1 and reducing storage and transportation costs.

[0074] Furthermore, the first water collection bucket 101 and the second water collection bucket 102 have the same structure, both including multiple spliced ​​bucket bodies 11, so that they can be stacked together for storage and transportation.

[0075] Preferably, the modular barrel body 11 is provided with a weak portion 113, which is used to penetrate the modular barrel body 11 and form a functional hole, such as an overflow hole, a drain hole, or a splicing hole. Because the modular barrel body 11 is provided with the weak portion 113, it is possible to penetrate the weak portion 113 and directly form a functional hole in the modular barrel body 11 during later use, greatly reducing the difficulty of secondary drilling, ensuring drilling positioning accuracy, ensuring the hole diameter meets usage requirements, facilitating flexible addition of accessories, improving the applicability of the water collection bucket 1, and meeting more application scenarios. Furthermore, compared to pre-drilling reserved holes, when no accessories are needed, the weak portion 113 remains on the modular barrel body 11, allowing the modular barrel body 11 to have a complete barrel wall structure, eliminating the need for additional sealing components to seal the reserved holes, and ensuring the sealing effect of the water collection bucket 1.

[0076] Preferably, a sealing connector (not shown in the figure, the same below) is provided around the weak part 113. The sealing connector includes a flange, an extension cylinder and / or an extension pipe arranged around the weak part 113. When the weak part 113 is broken to form the functional hole, the sealing connector can achieve a sealed connection between the corresponding pipe and the functional hole to prevent rainwater leakage. When the weak part 113 is not broken, the sealing connector can also provide local reinforcement around the weak part 113, thereby improving the structural strength of the spliced ​​barrel body 11.

[0077] Furthermore, the weak portion 113 includes a first weak portion 1131 located at the lower part of the modular barrel body 11. The first weak portion 1131 is used to form a splicing hole on the modular barrel body 11, and the splicing hole is used to connect with the drain pipe 62.

[0078] Furthermore, the first weak section 1131 includes multiple annular indentations, which are used to penetrate the spliced ​​barrel body 11 to form the splicing hole. The radial dimensions of the multiple annular indentations decrease sequentially, and the multiple annular indentations are nested sequentially according to their radial dimensions. Specifically, according to the order of the radial dimensions of the multiple annular indentations from largest to smallest, the next annular indentation is nested into the previous annular indentation, so that the multiple annular indentations are nested layer by layer. This can effectively reduce the space occupied by the multiple annular indentations and facilitate the splicing of different diameter splicing holes in the same position on the spliced ​​barrel body 11, adapting to different diameter drain pipes 62 and meeting more usage needs.

[0079] Furthermore, the multiple annular indentations may have the same or different shapes, and may be arranged concentrically or eccentrically. The specific shape, diameter, and position of the annular indentations are set according to specific requirements to adapt to different splicing pipes.

[0080] Preferably, the depth of the multiple annular indentations gradually increases from the outer ring to the inner ring, that is, the annular indentation closer to the center is deeper and easier to penetrate, thus avoiding damage to the annular indentation on the outer ring during the process of penetrating the annular indentation on the inner ring.

[0081] Preferably, the bottom ends of the multiple annular indentations are arranged close to or overlapping each other, so that the bottom height of the splicing holes corresponding to the multiple annular indentations is as similar as possible, avoiding large height differences when using different annular indentations to open the splicing holes, thereby facilitating the flow of rainwater between different water collection tanks 1.

[0082] Furthermore, the weak part 113 also includes a second weak part 1132 disposed on the upper part of the spliced ​​barrel body 11. The second weak part 1132 is used to form an overflow hole on the spliced ​​barrel body 11. The overflow hole is used to connect with the overflow pipe 61 or the confluence pipe 64.

[0083] Preferably, the two ends of the spliced ​​barrel body 11 along its circumference are provided with sealing structures 114. The sealing structures 114 on the spliced ​​barrel body 11 are used to position and seal with the sealing structures 114 on another spliced ​​barrel body 11 to achieve the assembly positioning and mutual sealing of the two adjacent spliced ​​barrel bodies 11.

[0084] Preferably, the outer wall of the spliced ​​barrel body 11 is provided with reinforcing ribs 115, and the reinforcing ribs 115 form a plurality of receiving grooves on the spliced ​​barrel body 11. The weak part 113 is provided in the receiving groove. The reinforcing effect of the reinforcing ribs 115 prevents deformation or even breakage at the location of the weak part 113 on the spliced ​​barrel body 11.

[0085] Furthermore, the water collection tank 1 also includes a bottom plate 12. The inner side wall of the modular tank body 11 is provided with an installation groove. The installation groove extends along the circumference of the modular tank body 11. The bottom plate 12 is detachably embedded in the installation groove, making assembly convenient and quick. The bottom plate 12 can be added or removed as needed.

[0086] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rainwater harvesting system, characterized in that, It includes multiple water collection buckets (1) for collecting rainwater and a pipe assembly (6) between two adjacent water collection buckets (1). The multiple water collection buckets (1) are used to be placed in different locations in the forest. The pipe assembly (6) includes an overflow pipe (61), the first end of which is connected to the upper part of one of the water collection buckets (1) and the second end of which is connected to the upper part of the other water collection bucket (1).

2. The rainwater collection system of claim 1, wherein, The pipe assembly (6) also includes a drain pipe (62) and a drain valve (63) disposed on the drain pipe (62). The first end of the drain pipe (62) is connected to the lower part of one of the water collection tanks (1), and the second end of the drain pipe (62) is connected to the other water collection tank (1).

3. The rainwater collection system of claim 2, wherein, The pipe assembly (6) also includes a confluence pipe (64). In two adjacent water collection tanks (1), the first end of the overflow pipe (61) and the first end of the drain pipe (62) are connected to the same water collection tank (1). The second end of the overflow pipe (61) and the second end of the drain pipe (62) are both connected to the first end of the confluence pipe (64). The second end of the confluence pipe (64) is connected to the upper part of another water collection tank (1).

4. The rainwater collection system of claim 3, wherein, The pipe assembly (6) also includes sealing rings respectively fitted on the overflow pipe (61), the drain pipe (62) and the confluence pipe (64), the sealing rings being used to insert into the corresponding openings on the water collection tank (1).

5. The rainwater harvesting system according to any one of claims 1 to 4, characterized in that, The water collection tank (1) includes a first water collection tank (101) and a second water collection tank (102). The first water collection tank (101) is provided with a water collection component (3) for collecting external rainwater into the first water collection tank (101). The second water collection tank (102) is used to collect rainwater in the first water collection tank (101) through the pipe assembly (6). At least one second water collection tank (102) is provided between two adjacent first water collection tanks (101).

6. The rainwater collection system of claim 5, wherein, The rainwater harvesting system includes multiple layers of water collection groups arranged sequentially along the height direction in the forest. Each layer of water collection group includes at least one water collection bucket (1). In two adjacent layers of water collection groups, the number of water collection buckets (1) in the upper layer of water collection group is greater than the number of water collection buckets (1) in the lower layer of water collection group.

7. The rainwater collection system of claim 5, wherein, The rainwater harvesting system includes multiple layers of water collection groups arranged sequentially along the height direction in the forest. Each layer of water collection group includes at least one of the water collection buckets (1). In two adjacent layers of water collection groups, the capacity of the water collection bucket (1) in the upper layer of water collection group is greater than the capacity of the water collection bucket (1) in the lower layer of water collection group.

8. The rainwater collection system of claim 5, wherein, The rainwater harvesting system also includes a bucket lid assembly (2); The first water collection tank (101) is provided with a receiving cavity for storing rainwater, and the top of the receiving cavity is provided with an opening; The bucket lid assembly (2) includes an outer lid (21) and an inner lid (22). The outer lid (21) is placed on the opening and has a water-blocking strip (211) around its circumference. The water-blocking strip (211) is used to enclose a water collection groove (212) on the top surface of the outer lid (21). A water intake hole (213) communicating with the receiving cavity is opened in the water collection groove (212). The outer lid (21) also has a supporting flange (214) surrounding the water intake hole (213) in the water collection groove (212). The inner lid (22) is movably placed on the supporting flange (214) and is used to block the water intake hole (213). A first water inlet hole (2141) is opened on the side wall of the supporting flange (214). The water collection assembly (3) includes a plurality of water collection blades (31) arranged around the outer cover (21). The water collection blades (31) are snapped onto the water baffle (211) and are used to guide rainwater falling onto the water collection blades (31) into the water collection trough (212). There is a gap between two adjacent water collection blades (31).

9. The rainwater collection system of claim 8, wherein, The top surface of the inner cover (22) is lower than the height of the water-blocking strip (211). The inner cover (22) is provided with a second water inlet (221). The inner cover (22) includes a rotating shaft (222) horizontally disposed in the second water inlet (221), a baffle (223) rotatably mounted on the rotating shaft (222), and a return spring sleeved on the rotating shaft (222) and elastically abutting against the baffle (223). The return spring is used to elastically drive the baffle (223) to rotate to the state of blocking the second water inlet (221). When the rainwater on its upper surface reaches a preset amount, the baffle (223) is used to overcome the elastic force of the return spring by the weight of the rainwater and rotate downward relative to the rotating shaft (222) to open the second water inlet (221).

10. The rainwater collection system of claim 8, wherein, The bucket lid assembly (2) further includes a first filter screen (23) that covers the inner cover (22) and is connected to the inner cover (22) as a whole. The outer periphery of the first filter screen (23) is provided with a connecting arm (231). The outer cover (21) is provided with a connecting hole (215) on one side of the support flange (214). The connecting arm (231) is provided with a rotating hole (2311) for passing through a bolt (24) and being installed on the connecting hole (215) by the bolt (24). The first filter screen (23) is used to rotate relative to the bolt (24) through the rotating hole (2311) to drive the inner cover (22) to move and open and close. The rainwater harvesting system also includes a second filter (4), which covers the outer cover (21) and blocks the connection between the water collection assembly (3) and the outer cover (21).

Images