Rainwater collecting mechanism based on water circulation
The automatic cleaning and drying of the filter screen is achieved through the coordinated movement of the guide ring and the filter ring, which solves the problem of bacterial growth caused by damp filter screen in the existing technology and ensures the purity of water quality in the rainwater collection system.
Patent Information
- Application Number
- CN202511883667.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-04-03
AI Technical Summary
The filtration components of existing rainwater harvesting systems are prone to bacterial and algal growth in humid environments, polluting rainwater.
A rainwater collection mechanism was designed, comprising a water tank, an inlet hopper, an adjustment component, and a filter component. Through the coordinated movement of the guide ring, spring, and filter ring, the filter screen is automatically cleaned and dried to prevent impurities from accumulating. A bevel gear transmission is used to ensure the filter screen is dry and to prevent bacterial growth.
It effectively prevents impurities from accumulating on the filter screen, keeps the filter screen dry, prevents bacterial and algal contamination, and ensures rainwater quality.
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Figure CN121781654A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of water cycle technology, and more specifically to a rainwater harvesting mechanism based on water cycle. Background Technology
[0002] With water resources becoming increasingly scarce, water recycling technology has become a crucial aspect of urban construction. Existing rainwater harvesting systems can collect natural precipitation. In the initial stages of rainfall, dust in the air and dirt from building roofs are collected along with the rainwater. This rainwater contains a significant amount of impurities, such as silt, dirt, and other debris. These impurities have a certain water absorption capacity, and if they directly enter the storage system, they will affect the overall water quality.
[0003] Therefore, existing technologies generally involve adding a filtration mechanism inside the rainwater collection device to filter the rainwater entering the storage tank, preventing debris from soaking in the rainwater, such as the patent with publication number CN216948528U.
[0004] While existing filtration mechanisms can filter impurities from rainwater, the presence of absorbent impurities in the rainwater creates a humid environment that easily breeds bacteria, algae, and other microorganisms, thereby contaminating the rainwater that has passed through the filtration device. Summary of the Invention
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a rainwater harvesting mechanism based on water circulation.
[0006] The objective of this invention can be achieved through the following technical solutions: A rainwater harvesting mechanism based on water circulation includes a water storage tank and an inlet hopper installed on top of the water storage tank. A drain outlet is installed at the bottom of the water storage tank. An adjusting assembly is longitudinally slidably installed inside the water storage tank, and a filter assembly is rotatably installed inside the water storage tank, with the filter assembly located at the bottom of the adjusting assembly. The adjusting assembly includes a top perforated plate and a guide ring extending from the top perforated plate. A bottom perforated plate is rotatably installed at the bottom of the top perforated plate. The bottom of the guide ring is connected to a pressure ring via a spring. A sliding rod is installed on the outer wall of the bottom perforated plate, and an inclined sliding groove is installed on the inner wall of the pressure ring. The sliding rod cooperates with the inclined sliding groove. The filter assembly includes a filter ring with a filter screen installed on it. The top perforated plate is connected to a central disk on the filter screen via a connecting rod. The filter screen is located at the bottom of the top perforated plate, and the filter ring is located at the bottom of the pressure ring.
[0007] As a further embodiment of the present invention: a guide block is installed on the side wall of the guide ring, a guide groove is opened on the inner wall of the water tank, and the guide block slides inside the guide groove; the guide block is connected to the filter ring through a transmission assembly.
[0008] As a further aspect of the present invention: a spring is installed at the bottom of the guide block, and the guide block is connected to the inner wall of the guide groove through the spring.
[0009] As a further embodiment of the present invention: a rotating groove is formed on the inner wall of the water tank, and the filter ring is rotatably installed inside the rotating groove.
[0010] As a further embodiment of the present invention: the transmission assembly includes a guide rod for mounting the bottom of the guide block, a double-ended screw for mounting the center of the guide rod, a bevel gear for rotating inside the water tank, and the bevel gear for transmission connection with the double-ended screw; and a conical tooth for mounting on the side wall of the filter ring, the conical tooth for transmission connection with the bevel gear.
[0011] As a further aspect of the present invention: a rubber pad is installed at the bottom of the pressure ring; as the top perforated plate moves down, the pressure ring presses down on the debris on the filter ring through the rubber pad.
[0012] As a further aspect of the present invention: the guide block is equipped with a shielding component, and the guide block is connected to the inner wall of the guide groove through the shielding component.
[0013] The beneficial effects of this invention are: (1) After the rainwater in the inlet hopper is filtered by the filter screen, under the action of the spring force of spring one, the guide block moves up along the guide groove, which drives the guide ring and the top perforated plate to move up. At the same time, the spring two rebounds and drives the bottom perforated plate to reset, so that the top perforated plate is in a blocked state. When the guide block slides to the top of the guide groove, the filter screen returns to the upward convex cone shape (i.e., the "equilateral triangle" state). At this time, the impurities filtered by the filter screen roll along the filter screen to the filter ring under the action of gravity, preventing impurities from accumulating on the filter screen and avoiding water-absorbing impurities from remaining on the filter screen, which would cause the filter screen to be in a damp state for a long time, and thus easily breed bacteria, algae and other microorganisms, which would contaminate the rainwater that passes through the filter screen.
[0014] Furthermore, by injecting water into the inlet hopper again, the guide ring moves down again. At this time, the rubber pad at the bottom of the pressure ring presses down the impurities accumulated on the filter ring, causing the hygroscopic impurities on the filter ring to drain through the through holes of the filter ring, effectively utilizing and removing the moisture in the impurities.
[0015] (2) In the process of the spring returning to reset the guide ring, the double-headed screw moves and drives the bevel gear to rotate. Through the meshing of the bevel gear with the bevel teeth on the filter ring, the bevel gear drives the filter ring to rotate, causing the filter ring to twist the filter screen, wring out the filter screen and the impurities and moisture filtered by the filter screen, ensuring that the filter assembly is in a dry state, preventing bacteria from growing inside the filter screen, and avoiding contamination of the rainwater passing through the filter screen.
[0016] (3) The present invention drives the filter ring to rotate in both directions by a double-headed screw, so that the filter ring can rotate back to its original position in time after wringing out the water in the filter screen. This avoids the filter screen from getting wrinkled and hiding impurities when it is twisted. When the filter screen is in an equilateral triangle shape, the impurities filtered by the filter screen cannot roll smoothly to the filter ring, resulting in filter screen blockage. Attached Figure Description
[0017] The invention will now be further described with reference to the accompanying drawings.
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the water tank; Figure 4 yes Figure 3 Enlarged view of the structure of part A; Figure 5 yes Figure 3 Enlarged view of the structure of part B; Figure 6 This is a schematic diagram of the connection structure between the guide ring and the pressure ring; Figure 7 This is a schematic diagram of the connection structure between the bottom perforated plate and the pressure ring; Figure 8 yes Figure 7 Enlarged view of the structure of part C; Figure 9 This is a schematic diagram of the connection structure between the filter assembly and the guide channel.
[0019] In the diagram: 1. Water tank; 2. Inlet hopper; 3. Drain outlet; 4. Adjustment assembly; 401. Guide ring; 402. Top perforated plate; 403. Guide block; 404. Bottom perforated plate; 405. Pressure ring; 406. Spring 2; 407. Rubber pad; 408. Slide rod; 409. Inclined slide groove; 5. Guide groove; 6. Filter assembly; 601. Filter ring; 602. Filter screen; 603. Central plate; 604. Conical gear; 7. Connecting rod; 8. Transmission assembly; 801. Guide rod; 802. Double-ended screw; 803. Bevel gear; 9. Spring 1; 10. Shielding component. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] Please see Figures 1-8As shown, the present invention is a rainwater collection mechanism based on water circulation, which includes a water storage tank 1 and an inlet hopper 2 installed on the top of the water storage tank 1, and an outlet 3 installed at the bottom of the water storage tank 1. An adjusting assembly 4 is longitudinally slidably installed inside the water storage tank 1, and a filter assembly 6 is rotatably installed inside the water storage tank 1, with the filter assembly 6 located at the bottom of the adjusting assembly 4. The adjusting assembly 4 includes a top perforated plate 402 and a guide ring 401 extending from the top perforated plate 402, and a bottom perforated plate 4 is rotatably installed at the bottom of the top perforated plate 402. 04. The bottom of the guide ring 401 is connected to the pressure ring 405 via a second spring 406. A sliding rod 408 is installed on the outer wall of the bottom perforated plate 404, and a slanted sliding groove 409 is installed on the inner wall of the pressure ring 405. The sliding rod 408 cooperates with the slanted sliding groove 409. The filter assembly 6 includes a filter ring 601, on which a filter screen 602 is installed. The top perforated plate 402 is connected to a central disk 603 on the filter screen 602 via a connecting rod 7. The filter screen 602 is located at the bottom of the top perforated plate 402, and the filter ring 601 is located at the bottom of the pressure ring 405. Specifically, a guide block 403 is installed on the side wall of the guide ring 401, and a guide groove 5 is opened on the inner wall of the water tank 1. The guide block 403 slides inside the guide groove 5. The guide block 403 is connected to the filter ring 601 via a transmission assembly 8. Specifically, a first spring 9 is installed at the bottom of the guide block 403, and the guide block 403 is connected to the inner wall of the guide groove 5 via the first spring 9. Specifically, a rotating groove is provided on the inner wall of the water storage tank 1, and the filter ring 601 is rotatably installed inside the rotating groove.
[0022] In the initial state, the through holes on the top perforated plate 402 are misaligned with the through holes on the bottom perforated plate 404, so that the top perforated plate 402 is in a blocked state; the guide block 403 on the side wall of the guide ring 401 slides to the top of the guide groove 5 and restores the upward convex cone shape (i.e., the "equilateral triangle" state).
[0023] It should be noted that the inlet hopper 2 is connected to multiple rainwater hoppers, and the rainwater collected by the rainwater hoppers is injected into the inlet hopper 2. See also... Figure 5 A magnetic block is installed at the bottom of the guide block 403, and an electromagnetic chuck is installed at the bottom of the guide groove 5. When the guide block 403 slides to the bottom of the guide groove 5, the electromagnetic chuck is energized to attract the magnetic block, fixing the guide ring 401 and the top perforated plate 402. After the rainwater inside the liquid inlet hopper 2 has been filtered, the electromagnetic chuck is disconnected.
[0024] Rainwater filtration: The rainwater hopper collects rainwater and injects it into the inlet hopper 2. As the amount of rainwater inside the inlet hopper 2 increases, the rainwater puts pressure on the guide ring 401 and the top perforated plate 402, causing the guide block 403 on the guide ring 401 to slide down along the guide groove 5. At the same time, the spring 9 is compressed. As the top perforated plate 402 moves down, the top perforated plate 402 drives the central plate 603 to move down through the connecting rod 7, so that the filter screen 602 gradually forms a downward concave cone shape (i.e., an "inverted triangle" state).
[0025] When the rainwater inside the inlet hopper 2 reaches the specified amount, the rubber pad 407 at the bottom of the pressure ring 405 adheres to the filter ring 601, at which point the filter screen 602 forms an inverted triangle. As the guide ring 401 moves down again, the spring 406 is compressed, and the pressure ring 405 slides into the guide ring 401. Through the cooperation of the slide rod 408 on the bottom perforated plate 404 and the inclined slide groove 409 on the pressure ring 405, the pressure ring 405 drives the bottom perforated plate 404 to rotate, so that the through hole on the bottom perforated plate 404 coincides with the through hole on the top perforated plate 402. At this time, the rainwater at the top of the top perforated plate 402 flows to the bottom of the water tank 1 through the filter screen 602, and the filter screen 602 filters the impurities in the rainwater.
[0026] As rainwater in the inlet hopper 2 is filtered by the filter screen 602, the guide groove 5 rebounds, causing the guide ring 401 and the top perforated plate 402 to move upward. At the same time, the spring 406 rebounds, causing the bottom perforated plate 404 to reset, so that the top perforated plate 402 is in a blocked state. When the guide block 403 slides to the top of the guide groove 5, the filter screen 602 forms an equilateral triangle. At this time, the impurities filtered by the filter screen 602 roll along the filter screen 602 towards the filter ring 601, preventing impurities from accumulating on the filter screen 602 and avoiding water-absorbing impurities from remaining on the filter screen 602, which would cause the filter screen 602 to be in a damp state, and thus easily breed bacteria, algae and other microorganisms, contaminating the rainwater that has passed through the filter screen 602.
[0027] By injecting water into the inlet hopper 2 again, the guide ring 401 moves down again. At this time, the rubber pad 407 at the bottom of the pressure ring 405 presses down on the impurities on the filter ring 601, causing the water-absorbing impurities in the filter ring 601 to drain through the through holes of the filter ring 601, effectively utilizing the moisture in the impurities and preventing the water-absorbing impurities from remaining in the filter ring 601 for a long time and breeding bacteria.
[0028] See Figures 3-9 The transmission assembly 8 includes a guide rod 801 mounted on the bottom of the guide block 403, a double-ended screw 802 mounted at the center of the guide rod 801, a bevel gear 803 rotatably mounted inside the water tank 1, and the bevel gear 803 being connected to the double-ended screw 802 in a transmission connection; a conical tooth 604 is mounted on the side wall of the filter ring 601, and the conical tooth 604 is connected to the bevel gear 803 in a transmission connection.
[0029] It should be noted that the filter screen 602 contains cloth and other water-absorbing materials. After filtering rainwater, the filter screen 602 absorbs water and is in a damp state. Prolonged dampness can easily lead to the growth of bacteria inside the filter screen 602, which can contaminate the rainwater that has passed through the filter screen 602.
[0030] During the process of the spring 9 returning to its original position and driving the guide ring 401 to reset, the double-headed screw 802 drives the bevel gear 803 to rotate. The bevel gear 803 meshes with the conical teeth 604 on the filter ring 601, causing the filter ring 601 to rotate. This causes the filter ring 601 to twist the filter screen 602, wringing out the filter screen 602 and the impurities and moisture filtered by the filter screen 602, ensuring that the filter assembly 6 is in a dry state and preventing bacteria from growing inside the filter screen 602 and contaminating the rainwater that has passed through the filter screen 602. After the guide ring 401 resets...
[0031] It should be noted that the two threads of the double-ended screw 802 rotate in opposite directions. Therefore, within one cycle of the guide rod 801's up-and-down movement, the filter ring 601 can be driven to rotate first in the forward direction and then in the reverse direction through the bevel gear set. This allows the filter ring 601 to wring out the water in the filter screen 602 and then promptly return to its original position. This prevents impurities from being trapped in the wrinkles created when the filter screen 602 is wrung out, causing the filter screen 602 to return to its upward-convex cone shape (i.e., the "equilateral triangle" state). At this time, the impurities filtered by the filter screen 602 cannot roll smoothly to the filter ring 601, resulting in the filter screen 602 becoming clogged.
[0032] See Figure 4 A rubber pad 407 is installed at the bottom of the pressure ring 405; as the top perforated plate 402 moves down, the pressure ring 405 presses down on the debris on the filter ring 601 through the rubber pad 407. It should be noted that when the debris is pressed down by the rubber pad 407, the rubber pad 407 is deformed under pressure, which fixes the debris and prevents the debris from being pressed into the filter screen 602.
[0033] See Figures 3-5 The guide block 403 is equipped with a shielding member 10, and the guide block 403 is connected to the inner wall of the guide groove 5 through the shielding member 10. It should be noted that the shielding member 10 can prevent impurities from the filter ring 601 from entering the guide groove 5 and affecting the transmission of the transmission assembly 8.
[0034] The implementation principle of this invention is as follows: In the initial state, the through holes on the top perforated plate 402 are misaligned with the through holes on the bottom perforated plate 404, so that the top perforated plate 402 is in a blocked state; the guide block 403 on the side wall of the guide ring 401 slides to the top of the guide groove 5, and the filter screen 602 is in the shape of an equilateral triangle.
[0035] Rainwater filtration: The rainwater hopper collects rainwater and injects it into the inlet hopper 2. As the amount of rainwater inside the inlet hopper 2 increases, the rainwater puts pressure on the guide ring 401 and the top perforated plate 402, causing the guide block 403 on the guide ring 401 to slide down along the guide groove 5. At the same time, the spring 9 is compressed. As the top perforated plate 402 moves down, the top perforated plate 402 drives the central plate 603 to move down through the connecting rod 7, so that the filter screen 602 gradually forms a downward concave cone shape.
[0036] When the rainwater inside the inlet hopper 2 reaches the specified amount, the rubber pad 407 at the bottom of the pressure ring 405 adheres to the filter ring 601, at which point the filter screen 602 forms an inverted triangle. As the guide ring 401 moves down again, the spring 406 is compressed, and the pressure ring 405 slides into the guide ring 401. Through the cooperation of the slide rod 408 on the bottom perforated plate 404 and the inclined slide groove 409 on the pressure ring 405, the pressure ring 405 drives the bottom perforated plate 404 to rotate, so that the through hole on the bottom perforated plate 404 coincides with the through hole on the top perforated plate 402. At this time, the rainwater at the top of the top perforated plate 402 flows to the bottom of the water tank 1 through the filter screen 602, and the filter screen 602 filters the impurities in the rainwater.
[0037] As rainwater in the inlet hopper 2 is filtered by the filter screen 602, the guide groove 5 rebounds, causing the guide ring 401 and the top perforated plate 402 to move upward. At the same time, the spring 406 rebounds, causing the bottom perforated plate 404 to reset, so that the top perforated plate 402 is in a blocked state. When the guide block 403 slides to the top of the guide groove 5, the filter screen 602 forms an equilateral triangle. At this time, the impurities filtered by the filter screen 602 roll along the filter screen 602 towards the filter ring 601, preventing impurities from accumulating on the filter screen 602 and avoiding water-absorbing impurities from remaining on the filter screen 602, which would cause the filter screen 602 to be in a damp state, and thus easily breed bacteria, algae and other microorganisms, contaminating the rainwater that has passed through the filter screen 602.
[0038] By injecting water into the inlet hopper 2 again, the guide ring 401 moves down again. At this time, the rubber pad 407 at the bottom of the pressure ring 405 presses down on the impurities on the filter ring 601, causing the water-absorbing impurities on the filter ring 601 to drain through the through hole of the filter ring 601, effectively utilizing the water in the impurities.
[0039] It should be noted that the filter screen 602 contains cloth and other water-absorbing materials. After filtering rainwater, the filter screen 602 absorbs water and is in a damp state. Prolonged dampness can easily lead to the growth of bacteria inside the filter screen 602, which can contaminate the rainwater that has passed through the filter screen 602.
[0040] During the process of the spring 9 returning to reset the guide ring 401, the double-headed screw 802 drives the bevel gear 803 to rotate. The bevel gear 803 meshes with the conical teeth 604 on the filter ring 601, causing the filter ring 601 to rotate. This causes the filter ring 601 to twist the filter screen 602, wringing out the filter screen 602 and the impurities and moisture filtered by the filter screen 602. This ensures that the filter assembly 6 is in a dry state, preventing bacteria from growing inside the filter screen 602 and contaminating the rainwater that has passed through the filter screen 602.
[0041] It should be noted that the double-ended screw 802 is configured with two sections of lead screw. The two sections of lead screw drive the filter ring 601 to rotate in both directions, so that the filter ring 601 can rotate back to its original position in time after wringing out the water in the filter screen 602. This prevents the filter screen 602 from getting wrinkled when it is being wrung out, which would trap impurities and cause the filter screen 602 to form an equilateral triangle shape. In this case, the impurities filtered by the filter screen 602 cannot roll smoothly to the filter ring 601, resulting in the filter screen 602 becoming clogged.
Claims
1. A rainwater harvesting mechanism based on water cycle, characterized in that, It includes a water tank (1) and an inlet hopper (2) installed on the top of the water tank (1), a drain port (3) installed at the bottom of the water tank (1), an adjustment component (4) is installed vertically inside the water tank (1), and a filter component (6) is installed rotatably inside the water tank (1), with the filter component (6) located at the bottom of the adjustment component (4). The adjustment assembly (4) includes a top perforated plate (402) and a guide ring (401) extending from the top perforated plate (402). A bottom perforated plate (404) is rotatably mounted on the bottom of the top perforated plate (402). The bottom of the guide ring (401) is connected to a pressure ring (405) via a spring (406). A slide rod (408) is installed on the outer side wall of the bottom perforated plate (404). An inclined slide groove (409) is installed on the inner side wall of the pressure ring (405). The slide rod (408) cooperates with the inclined slide groove (409). The filter assembly (6) includes a filter ring (601), a filter screen (602) is installed on the filter ring (601), and a top perforated plate (402) is connected to a central plate (603) on the filter screen (602) via a connecting rod (7); the filter screen (602) is located at the bottom of the top perforated plate (402), and the filter ring (601) is located at the bottom of the pressure ring (405).
2. The rainwater harvesting mechanism based on water cycle according to claim 1, characterized in that, The guide ring (401) has a guide block (403) installed on its side wall, and a guide groove (5) is opened on the inner wall of the water tank (1). The guide block (403) slides inside the guide groove (5). The guide block (403) is connected to the filter ring (601) through the transmission assembly (8).
3. A rainwater harvesting mechanism based on water cycle according to claim 2, characterized in that, The bottom of the guide block (403) is fitted with a spring (9), and the guide block (403) is connected to the inner wall of the guide groove (5) through the spring (9).
4. A rainwater harvesting mechanism based on water cycle according to claim 1, characterized in that, A rotating groove is provided on the inner wall of the water tank (1), and the filter ring (601) is rotatably installed inside the rotating groove.
5. A rainwater harvesting mechanism based on water cycle according to claim 2, characterized in that, The transmission assembly (8) includes a guide rod (801) at the bottom of the mounting guide block (403), a double-ended screw (802) installed at the center of the guide rod (801), a bevel gear (803) rotatably installed inside the water tank (1), and the bevel gear (803) is connected to the double-ended screw (802) in a transmission connection; a conical tooth (604) is installed on the side wall of the filter ring (601), and the conical tooth (604) is connected to the bevel gear (803) in a transmission connection.
6. A rainwater harvesting mechanism based on water cycle according to claim 1, characterized in that, A rubber pad (407) is installed at the bottom of the pressure ring (405); as the top perforated plate (402) moves down, the pressure ring (405) presses down on the debris on the filter ring (601) through the rubber pad (407).
7. A rainwater harvesting mechanism based on water cycle according to claim 2, characterized in that, The guide block (403) is equipped with a shield (10), and the guide block (403) is connected to the inner wall of the guide groove (5) through the shield (10).
Citation Information
Patent Citations
Rainwater collecting device capable of recycling water
CN216948528U