Rainwater harvesting device

Abstract

This utility model discloses a rainwater harvesting device, including a bucket, a bucket lid assembly, and a water collection assembly. The bucket has a receiving cavity for storing rainwater. The bucket lid assembly includes an outer lid and an inner lid. The outer lid covers the bucket and has a circumferential water-blocking strip, which encloses a water collection trough on the top surface of the outer lid. A water intake hole communicating with the receiving cavity is opened in the water collection trough. The outer lid also has a supporting flange surrounding the water intake hole within the water collection trough. The inner lid is movably fitted onto the water intake hole, and a first water inlet hole is opened on the side wall of the supporting flange. The water collection assembly includes multiple water-collecting blades arranged around the outer lid. The water-collecting blades are engaged with the water-blocking strip and guide rainwater from the blades into the water collection trough. There is a gap between adjacent water-collecting blades. The rainwater harvesting device provided by this utility model can increase the water collection area while reducing wind resistance, increasing the amount of rainwater collected, enhancing stability, and preventing rainwater evaporation.

Description

Technical Field

[0001] This utility model relates to the field of rainwater harvesting technology, and in particular, to a rainwater harvesting device. 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 rainwater collection and storage device for forest fire fighting, 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, resulting in fewer impurities in the rainwater. Simultaneously, it prevents large leaves from falling into the barrel body with the rainwater, thus preventing the rainwater from clogging the barrel's outlet pipe, external connecting pipes, or water pump during use, facilitating the use of rainwater. However, this forest fire prevention rainwater collection and storage device introduces rainwater through a connecting ring. Since the connecting ring is designed as a ring structure that surrounds the barrel, the wind resistance increases exponentially when the radius of the connecting ring is extended, making it easy for the device to be blown over by the wind. Therefore, the outer diameter of the connecting ring cannot be much larger than the barrel, resulting in a limited rainwater collection area and insufficient rainwater collection volume. Secondly, since the top of the barrel is directly open and only shielded by filter screens one and two, a large amount of rainwater inside the barrel can easily evaporate when exposed to direct sunlight. In hot weather when forest fires are prone to occur, there may be insufficient rainwater storage, which will prevent the device from achieving its purpose of fire prevention and disaster relief. Utility Model Content

[0004] This invention provides a rainwater harvesting device to solve the technical problems of insufficient rainwater collection and easy evaporation in existing rainwater harvesting devices.

[0005] According to one aspect of the present invention, a rainwater collection device is provided, comprising a bucket, a bucket lid assembly, and a water collection assembly; The bucket 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 over the water intake hole. A first water inlet hole is opened on the side wall of the supporting flange for guiding rainwater in the water collection groove into the receiving cavity. 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.

[0006] 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.

[0007] 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 passing through a bolt and being installed on the connecting hole by the bolt. 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.

[0008] Preferably, the outer cover has a limiting ring extending radially inward along the bottom edge of the water intake hole, the inner cover is embedded in the water intake hole, and the bottom end of the inner cover has a limiting groove for engaging the limiting ring.

[0009] Preferably, the rainwater collection device further includes a second filter screen, which is disposed above the outer cover and covers the connection between the water collection assembly and the outer cover.

[0010] Preferably, the surface of the outer cover is provided with a plurality of third water inlets between the supporting flange and the water baffle, and the diameter of the third water inlets is smaller than that of the first water inlets.

[0011] Preferably, the bottom of the water collecting blade is provided with a limiting pin, and the top surface of the water baffle and / or the top surface of the outer cover are provided with a limiting hole located outside the water baffle, and the limiting pin passes through the limiting hole.

[0012] Preferably, the bottom of the water collecting blade is provided with a hook, and the inner side wall of the water baffle is provided with a groove, and the hook is engaged with the groove.

[0013] Preferably, the top of the bucket is provided with a support ring that extends radially outward and is used to support the outer cover. The support ring has a through hole corresponding to the position of the limiting hole. The limiting pin includes a threaded segment for passing through the through hole and being fixed to the support ring by tightening a nut.

[0014] Preferably, the water collecting blade includes a first blade and a second blade, the first blade is mounted on the outer cover, the second blade is movably connected to the first blade, and the second blade is used to move relative to the first blade to adjust the overlap area of ​​the second blade relative to the first blade.

[0015] Preferably, the water collection assembly includes one or two layers of blade groups, and the blade groups include a plurality of water collection blades arranged around the outer cover; When the water collection assembly includes a layer of blades, two adjacent water collection blades are spaced apart circumferentially. When the water collection assembly includes two layers of blades, two adjacent water collection blades in a single layer of blades are spaced apart circumferentially, the two layers of blades are spaced apart longitudinally, and the vertical projection of the water collection blades in the upper layer of blades onto the lower layer of blades covers the gap between two adjacent water collection blades in the lower layer of blades.

[0016] This utility model has the following beneficial effects: The rainwater harvesting device provided by this utility model uses multiple water-collecting blades to form a petal structure surrounding the outer cover. This structure can collect a large amount of rainwater from the outside of the bucket into the water collection trough. At the same time, because there is a gap between two adjacent water-collecting blades, the airflow can be guided through the gap, reducing wind resistance and preventing the rainwater harvesting device from being blown over by lateral or downward winds, thus improving stability. Furthermore, it can effectively extend the radius of the water-collecting blades, increase the rainwater collection area of ​​the blades, and increase the amount of rainwater collected. Secondly, rainwater from the collection tank is introduced into the water tank's receiving cavity through the first water inlet. Since the first water inlet is located on the side wall of the supporting flange, its upper part is completely blocked by the inner cover. This ensures smooth water intake while effectively preventing the water tank's receiving cavity from being exposed to direct sunlight and causing excessive evaporation of rainwater. Even if a small amount of rainwater evaporates, most of the evaporated water vapor will adhere to the inner cover and drip back into the water tank, ensuring that the water storage capacity does not decrease significantly in hot weather. This achieves the purpose of fire prevention and disaster relief. Furthermore, the cooperation between the inner and outer covers not only prevents rainwater evaporation but also exposes the water outlet after opening the inner cover, facilitating quick and easy water access without having to move the relatively heavy outer cover, thus significantly improving ease of use.

[0017] 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

[0018] 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 collection device provided in the embodiment of this utility model; Figure 2 for Figure 1 An exploded view of the rainwater harvesting device after some of the water-collecting blades have been removed; Figure 3 for Figure 2 The diagram shows the usage status of the bucket lid assembly in the rainwater harvesting device. Figure 4 This is a schematic diagram of the structure of the outer cover of a bucket lid assembly provided in another embodiment of the present invention; Figure 5 for Figure 2 The diagram shows the usage status of the inner cover in the rainwater harvesting device. Figure 6 A cross-sectional view of a bucket lid assembly provided in another embodiment of the present utility model; Figure 7 for Figure 2 A three-dimensional view of the rainwater harvesting device's collecting blades 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.

[0019] Legend: 1000. Rainwater harvesting device; 1. Bucket; 11. Interlocking bucket body; 111. Support ring; 112. Through hole; 113. Weak point; 1131. First weak point; 1132. Second weak point; 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; 2142. Support protrusion; 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. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] Figures 1 to 9 The present invention provides a rainwater harvesting device 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 reduce rainwater evaporation through structural design to ensure sufficient rainwater storage. The overall structure is simple, efficient and low-cost, and has good performance.

[0023] Please combine Figure 1 and Figure 2 The rainwater collection device 1000 includes a bucket 1, a bucket lid assembly 2, and a water collection assembly 3. The bucket 1 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.

[0024] 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.

[0025] Specifically, the rainwater collection device 1000 consists of multiple water-collecting 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 water tank 1 into the water collection trough 212. At the same time, because there is a gap between two adjacent water-collecting blades 31, the gap can be used to guide the airflow, reduce wind resistance, and prevent the rainwater collection device 1000 from being blown over by lateral or downward winds, thus improving stability. Furthermore, it can effectively extend the radius of the water-collecting blades 31, increase the rainwater collection area of ​​the water-collecting blades 31, and increase the amount of rainwater collected. Secondly, rainwater from the water collection tank 212 is introduced into the receiving cavity of the water 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 water bucket 1 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 water bucket 1, 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 outlet 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.

[0026] 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 water bucket 1 along the first water inlet hole 2141.

[0027] 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.

[0028] Please combine Figure 2 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.

[0029] 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 water bucket 1 through the first water inlet 2141, preventing the receiving cavity of the water bucket 1 from being directly exposed and effectively reducing rainwater evaporation. When the rainfall is large and the water collection exceeds the water intake of the first water inlet 2141, the rainwater will fill the tank. 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, opening the second water inlet 221. This allows the rainwater to quickly enter the water tank 1 through 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.

[0030] 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.

[0031] Please combine Figure 2 and Figure 3 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.

[0032] 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.

[0033] 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.

[0034] like Figure 4 As shown, in another embodiment, it is not necessary to open the first water inlet hole 2141 on the support flange 214. By arranging multiple support protrusions 2142 at intervals along the top surface of the support flange 214, the inner cover 22 can be supported by the support protrusions 2142, and a water inlet structure can be formed along the gap between two adjacent support protrusions 2142, which can also avoid the water inlet structure being directly exposed.

[0035] 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.

[0036] 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.

[0037] Furthermore, the mating hole 225 is located below the baffle 223 so that the baffle 223 can cover the mating hole 225.

[0038] 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.

[0039] 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.

[0040] like Figure 1 As shown, the rainwater collection device 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.

[0041] like Figure 2 As 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.

[0042] 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 water tank 1.

[0043] 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.

[0044] 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, the rainwater in the water tank 1 will not evaporate quickly.

[0045] 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.

[0046] Preferably, the rainwater collection device 1000 further includes a water intake valve (not shown in the figure, the same below). The water intake valve is located at the lower part of the water tank 1 and is used to connect the receiving cavity to the outside. Due to the obstruction of the water collection component 3, the convenience of taking water from the bucket lid component 2 is not good. It is mainly suitable for the rapid water intake of large pumping equipment. When only a small flow of water is needed, the water can be drained directly through the water intake valve. A water pipe can be connected to the water intake valve, making it more convenient and faster to use.

[0047] Please combine Figure 2 and Figure 7 The 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] Preferably, the top of the water bucket 1 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. The limiting pin 311 is tightened and fixed to the support ring 111 by installing a nut at the bottom of the support ring 111. The limiting pin 311 can be used to connect the water collecting blade 31, the outer cover 21 and the water bucket 1 into a whole in sequence. The water collecting blade 31 is fixed by the water bucket 1, which enhances the installation strength of the water collecting blade 31 and also prevents the outer cover 21 from falling off relative to the water bucket 1.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] The applicable scenarios for the folding and unfolding structure of the water-collecting blade 31 are as follows: When the rainwater collection device 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 device 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 and increasing the water collection volume, thereby improving the rainwater collection effect.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] like Figure 2 As shown, the water bucket 1 includes multiple interlocking bucket bodies 11. Each interlocking bucket body 11 is used to be joined with another interlocking bucket body 11 along its circumference to form the sidewall of the water bucket 1. In other words, the sidewall of the water bucket 1 is divided into multiple interlocking bucket bodies 11 along its circumference. Each interlocking bucket body 11 can be produced and sold independently. Compared to a complete water bucket 1, the interlocking bucket bodies 11 are more convenient for stacking, storage, and transportation, effectively improving the transportation convenience of the water bucket 1 and reducing storage and transportation costs.

[0063] 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 on it. Because the modular barrel body 11 has the weak portion 113, it can be penetrated during later use to directly form a functional hole on the modular barrel body 11, 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 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 bucket 1.

[0064] 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.

[0065] Furthermore, the weak part 113 includes a first weak part 1131 located at the lower part of the spliced ​​barrel body 11. The first weak part 1131 is used to form a splicing hole on the spliced ​​barrel body 11. The splicing hole is used to connect with a splicing pipe and to sequentially splice multiple water buckets 1 through the splicing pipe, thereby connecting multiple rainwater collection devices 1000 in series into a whole, so that the rainwater collected by the water buckets 1 in different rainwater collection devices 1000 can flow to each other and achieve automatic and uniform distribution.

[0066] 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 as to nest the multiple annular indentations layer by layer. This can effectively reduce the space occupied by the multiple annular indentations and facilitate the splicing holes of different diameters to be opened in the same position on the spliced ​​barrel body 11, adapting to splicing pipes of different diameters and meeting more usage needs.

[0067] 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.

[0068] 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.

[0069] 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 buckets 1.

[0070] Furthermore, the weak part 113 also includes a second weak part 1132 located on the upper part of the spliced ​​bucket body 11. The second weak part 1132 is used to form an overflow hole on the spliced ​​bucket body 11. The overflow hole is used to connect with an overflow pipe and to connect the bucket 1 and the water collection tank into a whole through the overflow pipe. This allows the rainwater in the bucket 1 to overflow into the water collection tank along the overflow pipe when the amount of rainwater reaches a predetermined level, making it convenient to store and use large amounts of rainwater.

[0071] 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.

[0072] 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.

[0073] Furthermore, the bucket 1 also includes a bottom plate 12. The inner side wall of the modular bucket body 11 is provided with an installation groove. The installation groove extends along the circumference of the modular bucket 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.

[0074] 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 device, characterized in that, Includes a water bucket (1), a bucket lid assembly (2), and a water collection assembly (3); The bucket (1) 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 water intake hole (213). A first water inlet hole (2141) is opened on the side wall of the supporting flange (214) for guiding the rainwater in the water collection groove (212) into the receiving cavity. 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).

2. The rainwater harvesting device according to claim 1, characterized in that, 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).

3. The rainwater harvesting device according to claim 1, characterized in that, The bucket lid assembly (2) also 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 supporting 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.

4. The rainwater harvesting device according to any one of claims 1 to 3, characterized in that, The outer cover (21) has a limiting ring (219) extending radially inward along the bottom edge of the water intake hole (213). The inner cover (22) is embedded in the water intake hole (213), and the bottom end of the inner cover (22) has a limiting groove (224) for engaging the limiting ring (219).

5. The rainwater harvesting device according to claim 1, characterized in that, The rainwater collection device 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).

6. The rainwater harvesting device according to claim 1 or 5, characterized in that, The surface of the outer cover (21) is provided with a plurality of third water inlets (217) between the support flange (214) and the water baffle (211), and the diameter of the third water inlet (217) is smaller than that of the first water inlet (2141).

7. The rainwater harvesting device according to claim 1, characterized in that, The bottom of the water collecting blade (31) is provided with a limiting pin (311), and 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) located outside the water baffle (211), and the limiting pin (311) passes through the limiting hole (218).

8. The rainwater harvesting device according to claim 7, characterized in that, The bottom of the water collecting blade (31) is also provided with a hook (312), and the inner side wall of the water baffle (211) is provided with a groove (2111), and the hook (312) is engaged with the groove (2111).

9. The rainwater harvesting device according to claim 7 or 8, characterized in that, The top of the bucket (1) is provided with a support ring (111) that extends radially outward and 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 on the support ring (111) by a nut.

10. The rainwater harvesting device according to claim 1, characterized in that, 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 overlap area of ​​the second blade (315) relative to the first blade (314).

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