Rainwater collection system

Abstract

The present invention belongs to the technical field of rainwater collection, and relates to a rainwater collection system. The present invention includes a drainage ditch, which is connected to a plurality of purification barrels, each of which is connected to a collection pool, a purification barrel cover is detachably connected to the top of the purification barrel, a rainwater inlet connecting pipe is provided on the side wall of the purification barrel, a primary filter barrel connected to the rainwater inlet connecting pipe is provided in the purification barrel, a first filter plate and a second filter plate are provided in the purification barrel and located on the upper and lower sides of the primary filter barrel, respectively, the edges of the first filter plate and the second filter plate are tightly fitted with the inner wall of the purification barrel, the end of the primary filter barrel away from the rainwater inlet connecting pipe is connected to a secondary collection pipe, the end of the secondary collection pipe away from the primary filter barrel is connected to the side wall of the purification barrel, and the connection between the secondary collection pipe and the purification barrel is located above the first filter plate. After multi-layer filtration, the present invention can filter floating objects and particulate matter in rainwater, thereby purifying rainwater.

Description

Technical Field

[0001] The invention belongs to the technical field of rainwater collection and relates to a rainwater collection system. Background Art

[0002] Due to the rapid development of urbanization, the impermeable areas of roads, buildings, etc. have expanded. On the one hand, rainwater can no longer infiltrate into the ground to replenish groundwater, and the serious over-exploitation of groundwater has deteriorated the water environment and ecological environment around the city; on the other hand, when it rains heavily, runoff quickly gathers to cause surface water and local urban floods. Urban water shortages, water environment deterioration, ecological environmental damage, urban rainstorms, floods and other problems are becoming increasingly prominent.

[0003] If we pay attention to developing rainwater collection and utilization projects in urban construction, and keep the rainwater that was originally drained for use, it will not only increase water resources, but also be a good measure to save tap water. At the same time, through the extensive development of rainwater collection and utilization, since rainwater is retained or infiltrated back into the ground, the drainage volume is reduced, and the threat of urban flood disasters is reduced. Therefore, groundwater can be replenished, the water environment can be improved, and the ecological environment can be restored. It can be said that rainwater collection and utilization is one of the important measures for the sustainable utilization of urban water resources.

[0004] However, rainwater needs to be purified before entering the water tank, otherwise the impurities in the rainwater will flow directly into the water tank, causing pollution to the water tank. Summary of the invention

[0005] The object of the present invention is to provide a rainwater collection system in view of the above problems.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A rainwater collection system comprises a drainage ditch, wherein the drainage ditch is connected to a plurality of purification barrels, each of which is connected to a collection pool, a purification barrel cover is detachably connected to the top of the purification barrel, a rainwater inlet connecting pipe is arranged on the side wall of the purification barrel, a primary filter barrel connected to the rainwater inlet connecting pipe is arranged in the purification barrel, primary filter holes are densely distributed on the primary filter barrel, a first filter plate and a second filter plate are arranged in the purification barrel and on the upper and lower sides of the primary filter barrel respectively, the edges of the first filter plate and the second filter plate are tightly fitted with the inner wall of the purification barrel, the end of the primary filter barrel away from the rainwater inlet connecting pipe is connected to a secondary collection pipe, the end of the secondary collection pipe away from the primary filter barrel is connected to the side wall of the purification barrel, and the connection between the secondary collection pipe and the purification barrel is located above the first filter plate.

[0008] In the above-mentioned rainwater collection system, the primary filter barrel is tilted from high to bottom in the direction of the rainwater inlet connecting pipe toward the secondary collection pipe, and the inner wall of the purification barrel is provided with two arc-shaped filter barrel brackets. The two ends of the primary filter barrel are placed on the filter barrel brackets, and the first filter plate and the second filter plate are detachably connected to the purification barrel. The filter diameter of the first filter plate is 3-6mm, the filter diameter of the second filter plate is 1-3mm, and the aperture of the primary filter hole is 6-10mm.

[0009] In the above rainwater collection system, the second filter plate is also provided with a filter filler, and the filter filler is sponge or gravel.

[0010] In the above-mentioned rainwater collection system, the secondary collection pipe is a U-shaped pipe, a vent pipe is provided at the top of the secondary collection pipe, a slag discharge valve is provided at the bottom of the secondary collection pipe, the vent pipe extends above the purification barrel cover, the bottom of the secondary collection pipe is recessed downward to form a sedimentation chamber, and the slag discharge valve is connected to the bottom of the sedimentation chamber.

[0011] In the above-mentioned rainwater collection system, a copper sulfate releaser connected to the secondary collection pipe is detachably provided in the purification barrel and located above the first filter plate. The copper sulfate releaser is a hollow cylinder with a jacket filled with copper sulfate, and the inner wall of the copper sulfate releaser is provided with a plurality of small holes connected to the jacket.

[0012] In the above-mentioned rainwater collection system, the bottom and side walls of the collection pool are wrapped with a waterproof layer, and a cover plate is provided on the top of the collection pool. The collection pool includes a plurality of interconnected component bodies, the cross-section of the component body is rectangular, and a water storage cavity is provided in the component body. A concave-convex clamping mechanism is provided on every two opposite side walls of the component body, respectively. The concave-convex clamping mechanism includes a clamping groove located on one of the side walls of the component body, and a clamping convex strip located on the other opposite side wall. The shape and size of the clamping convex strip are matched with the clamping groove. The side wall of the component body is provided with a water hole, and the water hole penetrates the side wall of the component body. The water holes on every two opposite side walls of the component body correspond to each other.

[0013] In the above-mentioned rainwater collection system, the two ends of the snap-in groove and the snap-in convex strip extend to the upper and lower end faces of the component body respectively, the component body is provided with a reinforcement hole, and the reinforcement hole is provided with a steel bar, one end of the steel bar is located in the reinforcement hole, and the other end extends out of the upper surface of the component body, there are four reinforcement holes and they are located at the four corners of the component body, the reinforcement holes penetrate the upper and lower end faces of the component body, one end of the steel bar is snap-connected in the reinforcement hole, and the other end extends out of the upper surface of the component body and is connected to the cover plate.

[0014] In the above-mentioned rainwater collection system, a steel bar clamp is provided at the bottom of the reinforcement hole, and a pier head is provided at the end of the reinforcement. The pier head and the steel bar clamp are matched so that the pier head can form a clamping connection with the steel bar clamp, and the end of the reinforcement away from the pier head extends out of the upper surface of the component body after passing through the reinforcement hole. The cover plate is provided with connecting ribs, and the reinforcement is connected to the connecting ribs in the cover plate. The steel bar clamp is provided with a pier head fixing block, which is tightly matched with the top of the pier head. The steel bar clamp is provided with an internal thread, and the pier head fixing block is tightly matched with the top of the pier head after being screwed with the steel bar clamp; or the cross-section of the steel bar clamp gradually decreases from the bottom to the top of the component body, and the pier head fixing block is wedged into the steel bar clamp and tightly matched with the top of the pier head.

[0015] In the above-mentioned rainwater collection system, a component connecting hole is respectively provided on the four corners of the component body, an internal thread is provided in the component connecting hole, a connecting adjustment groove is provided in the component connecting strip, a connecting bolt is provided in the connecting adjustment groove, and the connecting bolt can be screwed and fixed with the component connecting hole.

[0016] In the above-mentioned rainwater collection system, an inlet connecting pipe and an outlet connecting pipe are provided on the collection pool, a backwash pipe extending to the bottom of the collection pool is provided in the collection pool, the backwash pipe is connected to a backwash pump, the water outlet of the backwash pump is respectively connected to a first valve and a second valve, the first valve is connected to an outlet pipe, the second valve is connected to a return pipe, the return pipe penetrates into the collection pool, the second valve is connected to a plurality of return pipes, the number of the return pipes is the same as the number of the component body and corresponds one to one, each return pipe penetrates into the component body from the top of the cover plate, and the return pipe extends to the bottom of the component body.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] 1. After multiple layers of filtration, it can filter floating objects and particles in rainwater, thereby purifying rainwater.

[0019] 2. Filter fillers can further purify sediments such as mud and sand in rainwater.

[0020] 3. The vent pipe can prevent air blockage and can directly observe the filtering conditions inside the purification barrel, providing a detection basis for cleaning the purification barrel.

[0021] 4. During the rainwater purification process, copper sulfate solution can be automatically added to sterilize the water.

[0022] 5. The component bodies are easy to connect and can be reasonably assembled according to the different shapes and sizes of underground water pools. The assembly process is convenient and the construction efficiency is high.

[0023] 6. The steel bars can provide protection for the component body by pulling it down and connecting it up, preventing the component body from sinking.

[0024] 7. The component connecting strip can connect different component bodies in the horizontal direction, so that different component bodies maintain an integrated structure in the horizontal position.

[0025] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the purification barrel;

[0027] Figure 2 It is another structural schematic diagram of the purification barrel;

[0028] Figure 3 It is a schematic diagram of the internal structure of the purification barrel;

[0029] Figure 4 It is a schematic diagram of the connection between the primary filter barrel and the filter barrel bracket;

[0030] Figure 5 It is a schematic diagram of the structure of the primary filter barrel;

[0031] Figure 6 It is a schematic diagram of the structure of the copper sulfate releaser;

[0032] Figure 7 It is a structural diagram of the component body;

[0033] Figure 8 is a schematic diagram of one of the side walls of the component body;

[0034] Fig. 9 is another schematic diagram of one of the side walls of the component body;

[0035] Fig.10 It is a schematic diagram of the connection between the steel bar and the reinforcement hole;

[0036] Fig.11 It is another schematic diagram of the connection between the steel bar and the reinforcing hole;

[0037] Fig.12 It is a schematic diagram of the component connection strip;

[0038] Fig.13 It is the working principle diagram of the component body connection;

[0039] Fig.14 It is a schematic diagram of the structure of the present invention;

[0040] Fig.15 It is another structural schematic diagram of the present invention;

[0041] Fig.16 It is a schematic diagram of the structure of the present invention;

[0042] Fig.17 It is a structural schematic diagram of another aspect of the present invention.

[0043] In the figure, the component body 101, the water storage chamber 102, the concave-convex clamping mechanism 103, the clamping groove 104, the clamping convex strip 105, the water hole 106, the reinforcing hole 107, the steel bar 108, the steel bar clamping platform 109, the pier head 110, the pier head fixing block 111, the component connection hole 112, the component connection strip 113, the connection adjustment groove 114, the connection bolt 115, the drainage ditch 200, the collection tank 201, the waterproof layer 202, the cover plate 203, the water inlet connecting pipe 204, the water outlet connecting pipe 205, the backwash Pipe 206, backwash pump 207, first valve 208, second valve 209, outlet pipeline 210, return pipeline 211, purification barrel 301, purification barrel cover 302, rainwater inlet connecting pipe 303, primary filter barrel 304, primary filter hole 305, first filter plate 306, second filter plate 307, secondary collection pipe 308, filter barrel bracket 309, filter filler 310, vent pipe 311, slag discharge valve 312, sedimentation chamber 313, copper sulfate releaser 314, jacket 315. DETAILED DESCRIPTION

[0044] like Fig.16 and Fig.17 As shown, a rainwater collection system includes a drainage ditch 200), wherein the drainage ditch 200 is connected to a plurality of purification barrels 301, each of which is connected to a collection pool 201, such as Figure 1 As shown, the top of the purification barrel 301 is detachably connected to a purification barrel cover 302, the side wall of the purification barrel 301 is provided with a rainwater inlet connecting pipe 303, the bottom of the purification barrel 301 is provided with a rainwater outlet connecting pipe 303a, and the rainwater outlet connecting pipe 303a is connected to the collection pool 201. The purification barrel 301 is provided with a primary filtering barrel 304 connected to the rainwater inlet connecting pipe 303, combined with Figure 5 As shown, the primary filter barrel 304 is densely covered with primary filter holes 305, and a first filter plate 306 and a second filter plate 307 are respectively provided in the purification barrel 301 and located on the upper and lower sides of the primary filter barrel 304, and the rainwater outlet connecting pipe 303a is located below the second filter plate 307, and the edges of the first filter plate 306 and the second filter plate 307 are tightly fitted with the inner wall of the purification barrel 301, and the end of the primary filter barrel 304 away from the rainwater inlet connecting pipe 303 is connected to the secondary collecting pipe 308, and the end of the secondary collecting pipe 308 away from the primary filter barrel 304 is connected to the side wall of the purification barrel 301, and the connection between the secondary collecting pipe 308 and the purification barrel 301 is located above the first filter plate 306.

[0045] In this embodiment, after rainwater enters the purification barrel 301, it first passes through the primary filter barrel 304 for primary filtration, blocking large particles and floating objects. A portion of the water that passes through the primary filter barrel 304 enters the second filter plate 307 for further filtration, and another portion of the water is filtered by the first filter plate 306 and then filtered again by the second filter plate 307. The first filter plate filters floating objects, and the second filter plate 307 performs fine filtration. After three filtrations, namely, the primary filter barrel 304, the first filter plate 306, and the second filter plate 307, the impurities in the rainwater are basically blocked on the first filter plate 306 and the second filter plate 307. The impurities on the rainwater can be cleaned by opening the purification barrel cover 302.

[0046] In the preferred embodiment, the primary filter barrel 304 is tilted from the top to the bottom in the direction from the rainwater inlet connecting pipe 303 to the secondary collecting pipe 308. When the rainwater flows from the rainwater inlet connecting pipe 303, the water flows downward in an inclined manner. Under the action of gravity, impurities such as leaves mixed in the rainwater are not easy to block the surface of the primary filter barrel. The rainwater can clean the primary filter barrel 304, making it easier to filter through the primary filter barrel 304, and the primary filter barrel 304 will not be blocked under a large flow of rainwater.

[0047] Combination Figure 4 As shown, two arc-shaped filter barrel brackets 309 are provided on the inner wall of the purification barrel 301. The two filter barrel brackets 309 are arranged one above the other. The two ends of the primary filter barrel 304 are placed on the filter barrel brackets 309 in an inclined state for easy disassembly. The primary filter barrel 304 can be sealed with the inner wall of the purification barrel 301, or there can be a certain gap.

[0048] The secondary collection pipe 308 is a U-shaped pipe, and the two ends of the U-shaped pipe are arranged horizontally. A vent pipe 311 is provided at the top of the secondary collection pipe 308, and a slag discharge valve 312 is provided at the bottom of the secondary collection pipe 308. The vent pipe 311 extends above the purification barrel cover 302 to prevent air blockage caused by rainwater and is used to relieve pressure inside the purification barrel.

[0049] Another function of the vent pipe 311 is to detect whether there is a blockage inside the purification barrel 301. When the purification barrel 301 is blocked, rainwater cannot be filtered and will flow out from the vent pipe 311. It can be determined that the purification barrel 301 is blocked and needs to be cleaned.

[0050] The first filter plate 306 and the second filter plate 307 are detachably connected to the purification barrel 301 , the filter diameter of the first filter plate 306 is 3-6 mm, the filter diameter of the second filter plate 307 is 1-3 mm, and the aperture of the primary filter hole 305 is 6-10 mm.

[0051] like Fig.14As shown, the bottom and side walls of the collection pool 201 are wrapped with a waterproof layer 202, and a cover plate 203 is provided on the top of the collection pool 201. The collection pool 201 includes a plurality of interconnected component bodies 101, and the component bodies 101 can be made of concrete, plastic such as PP, or metal materials, which is not limited in this embodiment. Figure 7 As shown, the cross section of the component body 101 is rectangular, a water storage chamber 102 is provided in the component body 101, and a concave-convex clamping mechanism 103 is provided on each of the two opposite side walls of the component body 101, and the concave-convex clamping mechanism 103 includes a clamping groove 104 located on one of the side walls of the component body 101, and a clamping convex strip 105 located on the other opposite side wall, and the shape and size of the clamping convex strip 105 are adapted to the clamping groove 104, and a water hole 106 is provided on the side wall of the component body 101, and the water hole 106 penetrates the side wall of the component body 101, and the water holes 106 on each of the two opposite side walls of the component body 101 correspond to each other. Preferably, the bottom of the component body 101 is sealed and the top is open. Of course, those skilled in the art can also make the bottom of the component body 101 into a partially sealed state, or a completely open state, and prevent the bottom of the component body 101 from being on the sealing film during construction.

[0052] Those skilled in the art should understand that the cross-sectional shapes of the engaging protrusion 105 and the engaging groove 104 are not limited to those in this embodiment. Figure 1 The provided shape may also be a fan-shaped, T-shaped or other shapes that can form a snap connection.

[0053] The present invention can realize the assembly connection of the underground water tank by convenient connection through the concave-convex clamping mechanism 103. Different numbers of component bodies 1 with different connection directions can be arranged according to the different sizes of the water tank. A sealing plate can be arranged at the connection to achieve a sealed connection between the two connected component bodies 101. A hole corresponding to the water hole 106 can be arranged on the sealing plate. The sealing plate can also be in a rectangular ring shape, surrounding the outside of the water hole 106.

[0054] The snap-fit ​​groove 104 and the snap-fit ​​ridge 105 can be located in the middle, top or bottom of the side wall. Figure 8 and Fig. 9 As shown, both ends of the snap-fit ​​groove 104 and the snap-fit ​​ridge 105 extend to the upper and lower end surfaces of the component body 101 respectively, so that two adjacent component bodies 1 can be flush up and down at the snap-fit ​​point when snap-fitted to each other, which facilitates the maintenance of the horizontality of the component bodies 1 during connection.

[0055] Those skilled in the art should also understand that the water hole 106 does not have to be a circular hole, but can also be an ellipse, a polygon or a strip. Figure 8The water through hole 106 in the embodiment is in the shape of a hole. Fig. 9 However, when two component bodies 1 are connected, the shapes, sizes and positions of the water holes 106 on the side walls of two adjacent component bodies 1 should correspond to each other, so that the two adjacent component bodies can be connected to each other.

[0056] The component body 101 is provided with rib penetration holes 107 . The number of the rib penetration holes 107 may be one or more. In a preferred embodiment, there are four rib penetration holes 107 located at the four corners of the component body 101 .

[0057] A steel bar 108 is arranged in the through-rib hole 107, one end of the steel bar 108 is located in the through-rib hole 107, and the other end extends out of the upper surface of the component body 101. In actual use, a cover plate needs to be arranged on the top of the component body 1, and the cover plate is usually a prefabricated component or a cast-in-place plate. The steel bar 108 can be welded to the steel bars in the prefabricated component, or welded and fixed to the steel bars in advance during cast-in-place, so as to prevent the settlement of the component body 1, that is, the component body 1 is fixedly connected to the top cover plate through the steel bar 108.

[0058] As a preferred solution, the cover plate 203 is provided with connecting ribs, the steel bars 108 are connected to the connecting ribs in the cover plate 203, and the rib holes 107 penetrate the upper and lower end faces of the component body 101. One end of the steel bar 108 is clamped in the rib hole 107, and the other end extends out of the upper surface of the component body 101 and is connected to the cover plate 203. The steel bar can be welded to the connecting ribs or connected in other ways, such as directly placing the steel bar 108 into cast-in-place concrete in the cover plate.

[0059] When using cast-in-place concrete to make the cover plate 203, it is necessary to first set a base plate on the top of the collection tank 201, pass the steel bars 108 through the base plate, and then set connecting bars above the base plate and weld them to the steel bars. After that, pour concrete and it becomes a cover plate after solidification.

[0060] A steel bar clamping platform 109 is provided at the bottom of the reinforcement hole 107, and a pier head 110 is provided at the end of the reinforcement 108. The pier head 110 is matched with the reinforcement clamping platform 109 so that the pier head 110 can be clamped with the reinforcement clamping platform 109. The end of the reinforcement 108 away from the pier head 110 passes through the reinforcement hole 107 and extends out of the upper surface of the component body 101. That is, the bottom of the reinforcement 108 is fixedly connected to the component body 101, and the top of the reinforcement can be connected to other reinforcements by welding. This arrangement enables multiple component bodies 101 to form an integrated pull-down and top-connected structure through the reinforcement when they are clamped together, so that the multiple component bodies 101 can maintain a horizontal position to prevent settlement.

[0061] A pier head fixing block 111 is provided inside the steel bar clamp 109, and the pier head fixing block 111 is tightly matched with the pier head 110. This arrangement plays a role in protecting the pier head fixing block 111 from rusting, and on the other hand, it can also make the pier head 110 and the steel bar clamp 109 achieve close contact.

[0062] Specifically, Fig.10 As shown, the steel bar clamping platform 109 is provided with an internal thread, and the pier head fixing block 111 is screwed with the steel bar clamping platform 109 and then tightly matched with the pier head 110.

[0063] This embodiment also provides another structure of the steel bar clamping platform 109 and the pier head fixing block 111, such as Fig.11 As shown, the cross section of the steel bar clamp 109 gradually decreases from the bottom to the top of the component body 101 , and the pier head fixing block 111 is wedged into the steel bar clamp 109 and tightly matched with the pier head 110 .

[0064] A component connection hole 112 is respectively provided at the four corners of the component body 101, and an internal thread is provided in the component connection hole 112. Nuts can also be pre-placed in the component connection hole 112. Fig.12 As shown, the component connecting strip 113 is also included. The component connecting strip 113 is provided with a connection adjustment groove 114. The connection adjustment groove 114 is provided with a connection bolt 115. The connection bolt 115 can be screwed and fixed with the component connecting hole 112. The connection bolt 115 can adjust the position in the connection adjustment groove 114, so that two adjacent component bodies 101 can be fixedly connected in the horizontal direction through the component connecting strip 113. When a sealing ring is provided at the connection, the component connecting strip 113 can achieve a sealed connection between the sealing ring and the side wall of the component body 101.

[0065] like Fig.14 As shown, a water inlet connecting pipe 204 and a water outlet connecting pipe 205 are provided on the collection pool 201, and the water inlet connecting pipe 204 is used to connect to the rainwater outlet connecting pipe 303a.

[0066] A backwash pipe 206 extending to the bottom of the collecting tank is provided in the collecting tank 201. The backwash pipe 206 is connected to a backwash pump. The water outlet of the backwash pump 207 is respectively connected to a first valve 208 and a second valve 209. The first valve 208 is connected to an outlet pipe 210. The second valve 209 is connected to a return pipe 211. The return pipe 211 penetrates into the collecting tank 201.

[0067] The preferred solution, combined Fig.15As shown, the second valve 209 is connected to a plurality of return pipes 211, the number of the return pipes 211 being the same as the number of the component bodies 101 and corresponding one to one, each return pipe 211 penetrating into the component body from the top of the cover plate 203, and the return pipe 211 extending to the bottom of the component body, so that each component body can be flushed during flushing.

[0068] Open the first valve 208, close the second valve 209, and the backwash pump 207 in the collection tank 201 is pumped out for use. Close the first valve 208, open the second valve 209, and the collection tank 201 realizes internal circulation. Then open the first valve 208 to realize flushing and use.

[0069] The working principle of the present invention is:

[0070] Dig a pit according to the construction site, put a waterproof layer 202 in the pit, the waterproof layer 202 can be a concrete precast board, or a PP board, or a polymer waterproof roll, insert the steel bar 108 into the steel bar hole 107, and install the pier head fixing block 111 in the steel bar clamp 109, so that the end 110 and the steel bar clamp 109 form a clamping connection, and the preparatory work is completed. Fig.13 As shown, when the component bodies 101 need to be connected, the connection can be achieved by inserting the snap-fitting convex strip 105 on one component body 101 into the snap-fitting groove 104 of another component body 101. Since the component body 101 has four side walls, each side wall can be connected, and the construction personnel can determine the connection direction and number of the component bodies 101 according to the shape of the pool. After the component bodies 101 are connected, a collection pool 201 is formed, and a waterproof layer 202 is surrounded around the collection pool 201.

[0071] Two adjacent component bodies 101 are fixedly connected in the horizontal direction through the component connecting strips 113. The component connecting strips 113 can be arranged longitudinally, transversely, or crisscrossed. After the component bodies 101 are connected, cement slurry can be poured into the reinforcement holes 107 to fix the reinforcement 108 therein.

[0072] The water inlet connecting pipe 204 passes through the waterproof layer 202 and connects to one of the component bodies 101 to achieve connection with the entire collection pool 201. Similarly, the water outlet connecting pipe 205 can also be connected to one component body. The water inlet of the backwash pump 207 can be connected with a pipe and inserted into the component body. The water outlet connecting pipe 205 can be connected to other equipment for easy use, such as connecting watering facilities, bathing facilities, solar energy equipment, etc.

[0073] The purification barrel 301 is buried underground and connected to the drainage ditch 200 by a pipe. The rainwater from several purification barrels 301 is connected to a main pipe through the connecting pipe 303a, and the main pipe is connected to one of the component bodies 101.

[0074] Example 2

[0075] The structure and working principle of this embodiment are basically the same as those of Embodiment 1, except that Figure 2 and Figure 3 As shown, a filter filler 310 is also provided on the second filter plate 307. In this embodiment, the filter filler 310 is a sponge or gravel, or fine sand, for settling soil.

[0076] The bottom of the secondary collecting pipe 308 is sunken downward to form a sedimentation chamber 313, and the slag discharge valve 312 is connected to the bottom of the sedimentation chamber 313. Mud and sand are settled in the sedimentation chamber 313 and can be cleaned by opening the slag discharge valve 312, which is used to reduce the filtering pressure of the second filter plate 307 and increase the filtering speed.

[0077] A copper sulfate releaser 314 connected to the secondary collection pipe 308 is detachably provided in the purification barrel 301 and located above the first filter plate 306 .

[0078] In this embodiment, if Figure 6 As shown, the copper sulfate releaser 314 is a hollow cylinder provided with a jacket 315, the jacket 315 is filled with copper sulfate, and the inner wall of the copper sulfate releaser 314 is provided with a plurality of small holes connected to the jacket 315. After the rainwater passes through the copper sulfate releaser 314, the rainwater enters the small holes of the jacket 315, dissolves the copper sulfate, and the copper sulfate solution water rainwater flows out of the small holes and enters the purification barrel, so that the rainwater is automatically added with copper sulfate to achieve the purpose of automatic sterilization. The copper sulfate releaser 314 can be replaced regularly.

[0079] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0080] Although this article uses more component body 101, water storage chamber 102, concave-convex clamping mechanism 103, clamping groove 104, clamping convex strip 105, water hole 106, reinforcement hole 107, steel bar 108, steel bar clamping platform 109, pier head 110, pier head fixing block 111, component connection hole 112, component connection strip 113, connection adjustment groove 114, connection bolt 115, drainage ditch 200, collection tank 201, waterproof layer 202, cover plate 203, water inlet connecting pipe 204, water outlet connecting pipe 205, backwash pipe 206, backwashing pipe 207, backwashing pipe 208, backwashing pipe 209, backwashing pipe 209, backwashing pipe 201, backwashing pipe 206, backwashing pipe 207, backwashing pipe 208, backwashing pipe 209 ...9, backwashing pipe 208, backwashing pipe 209, backwashing pipe 209, backwashing pipe 201, backwashing pipe 209, backwashing pipe 209, backwashing pipe 209, backwashing pipe 201, backwashing pipe 206, backwashing pipe 207, backwashing pipe 208, backwashing pipe 209, backwashing pipe 209, backwashing pipe 209, backwashing pipe 209, backwashing pipe 209, backwashing pipe 209, backwashing pipe 2 The flushing pump 207, the first valve 208, the second valve 209, the water outlet pipeline 210, the water return pipeline 211, the purification barrel 301, the purification barrel cover 302, the rainwater inlet connecting pipe 303, the primary filter barrel 304, the primary filter hole 305, the first filter plate 306, the second filter plate 307, the secondary collection pipe 308, the filter barrel bracket 309, the filter filler 310, the venting pipe 311, the slag discharge valve 312, the sedimentation chamber 313, the copper sulfate releaser 314, the jacket 315 and other terms are used, but the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present invention, and interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A rainwater collection system, comprising a drainage ditch (200), wherein the drainage ditch (200) is connected to a plurality of purification barrels (301), each purification barrel (301) is connected to a collection pool (201), characterized in that: The top of the purification barrel (301) is detachably connected to a purification barrel cover (302), a rainwater inlet connecting pipe (303) is provided on the side wall of the purification barrel (301), and a primary filter barrel (304) connected to the rainwater inlet connecting pipe (303) is provided in the purification barrel (301), characterized in that the primary filter barrel (304) is densely covered with primary filter holes (305), and a first filter plate (306) and a second filter plate (306) are respectively provided in the purification barrel (301) and located on the upper and lower sides of the primary filter barrel (304). The filter plate (307) is provided so that the edges of the first filter plate (306) and the second filter plate (307) are tightly fitted with the inner wall of the purification barrel (301); the end of the primary filter barrel (304) away from the rainwater inlet connecting pipe (303) is connected to a secondary collection pipe (308); the end of the secondary collection pipe (308) away from the primary filter barrel (304) is connected to the side wall of the purification barrel (301); and the connection between the secondary collection pipe (308) and the purification barrel (301) is located above the first filter plate (306). A copper sulfate releaser (314) connected to a secondary collection pipe (308) is detachably provided in the purification barrel (301) and located above the first filter plate (306). The copper sulfate releaser (314) is a hollow cylinder provided with a jacket (315). The jacket (315) is filled with copper sulfate. The inner wall of the copper sulfate releaser (314) is provided with a plurality of small holes connected to the jacket (315). The secondary collection pipe (308) is a U-shaped pipe, a vent pipe (311) is provided at the top of the secondary collection pipe (308), a slag discharge valve (312) is provided at the bottom of the secondary collection pipe (308), the vent pipe (311) extends above the purification barrel cover (302), the bottom of the secondary collection pipe (308) is recessed downward to form a sedimentation chamber (313), and the slag discharge valve (312) is connected to the bottom of the sedimentation chamber (313). The bottom and side walls of the collection pool (201) are wrapped with a waterproof layer (202), and a cover plate (203) is provided on the top of the collection pool (201). The collection pool (201) comprises a plurality of interconnected component bodies (101), the cross section of the component body (101) is rectangular, a water storage cavity (102) is provided in the component body (101), and a concave-convex clamping mechanism (103) is provided on each of two opposite side walls of the component body (101). The concave-convex clamping mechanism (103) The component body (101) comprises a snap-fit ​​groove (104) located on one side wall of the component body (101), and a snap-fit ​​convex strip (105) located on the other opposite side wall, wherein the shape and size of the snap-fit ​​convex strip (105) match the snap-fit ​​groove (104), and the side wall of the component body (101) is provided with a water-through hole (106), the water-through hole (106) penetrates the side wall of the component body (101), and the water-through holes (106) on every two opposite side walls of the component body (101) correspond to each other. The two ends of the snap-fit ​​groove (104) and the snap-fit ​​convex strip (105) extend to the upper and lower end surfaces of the component body (101) respectively; a rib-penetrating hole (107) is provided on the component body (101); a steel bar (108) is provided in the rib-penetrating hole (107); one end of the steel bar (108) is located in the rib-penetrating hole (107) and the other end extends out of the upper surface of the component body (101); there are four rib-penetrating holes (107) and they are located at four corners of the component body (101); the rib-penetrating holes (107) penetrate the upper and lower end surfaces of the component body (101); one end of the steel bar (108) is snap-fitted in the rib-penetrating hole (107) and the other end extends out of the upper surface of the component body (101) and is connected to the cover plate (203); A steel bar clamping platform (109) is provided at the bottom of the reinforcement hole (107), and a pier head (110) is provided at the end of the reinforcement (108). The pier head (110) and the reinforcement clamping platform (109) are matched so that the pier head (110) can be clamped with the reinforcement clamping platform (109). An end of the reinforcement (108) away from the pier head (110) passes through the reinforcement hole (107) and then extends out of the upper surface of the component body (101). The cover plate (203) is provided with connecting ribs, and the reinforcement (108) and the cover plate are connected. The steel bar clamp (109) is connected with the connecting bars in the plate (203); a pier head fixing block (111) is provided in the steel bar clamp (109); an internal thread is provided in the steel bar clamp (109); the pier head fixing block (111) is screwed to the steel bar clamp (109) and is tightly matched with the pier head (110); or the cross section of the steel bar clamp (109) gradually decreases from the bottom to the top of the component body (101); the pier head fixing block (111) is wedged into the steel bar clamp (109) and is tightly matched with the pier head (110); The collecting tank (201) is provided with a water inlet connecting pipe (204) and a water outlet connecting pipe (205). The collecting tank (201) is provided with a backwashing pipe (206) extending to the bottom of the collecting tank. The backwashing pipe (206) is connected to a backwashing pump. The water outlet of the backwashing pump (207) is respectively connected to a first valve (208) and a second valve (209). The first valve (208) is connected to a water outlet pipeline (210). The second valve (209) is connected to a return water pipeline (211). The return water pipeline (211) penetrates into the collecting tank (201). The second valve (209) is connected to a plurality of return water pipelines (211). The number of the return water pipelines (211) is the same as the number of the component body (101) and corresponds to each other. Each return water pipeline (211) penetrates into the component body from the top of the cover plate (203), and the return water pipeline (211) extends to the bottom of the component body.

2. The rainwater collection system according to claim 1, characterized in that: The primary filter barrel (304) is arranged to be inclined from the top to the bottom in the direction from the rainwater inlet connecting pipe (303) to the secondary collecting pipe (308); the inner wall of the purification barrel (301) is provided with two arc-shaped filter barrel brackets (309); the two ends of the primary filter barrel (304) are placed on the filter barrel brackets (309); the first filter plate (306) and the second filter plate (307) are detachably connected to the purification barrel (301); the filter diameter of the first filter plate (306) is 3-6 mm; the filter diameter of the second filter plate (307) is 1-3 mm; and the aperture of the primary filter hole (305) is 6-10 mm.

3. The rainwater collection system according to claim 1, characterized in that: The second filter plate (307) is further provided with a filter filler (310), and the filter filler (310) is sponge or gravel.

4. The rainwater collection system according to claim 1, characterized in that: A component connecting hole (112) is respectively provided at each of the four corners of the component body (101), and an internal thread is provided in the component connecting hole (112). The component body also includes a component connecting strip (113), and a connecting adjustment groove (114) is provided in the component connecting strip (113). A connecting bolt (115) is provided in the connecting adjustment groove (114), and the connecting bolt (115) can be screwed and fixed to the component connecting hole (112).

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