CN110685316A - An environment-friendly garden landscape rainwater collection and water recycling system - Google Patents

Abstract

The invention discloses an environment-friendly garden landscape rainwater collection and recycling water system, which belongs to the technical field of garden landscape water use. , the opposite sides of the two flip cover plates are connected with return springs connected to the rainwater collection tank, and the side where the free end of the outer side of the flip cover plate is located is hung by a hanging rope on the side of the rainwater collection tank. The lifting bucket; the filter assembly includes The two water filter boxes are respectively connected to the water outlet end of the rainwater collection tank and the water inlet end of the water storage tank. The water filter box is provided with two annular grooves and a water flow channel passing through the two annular grooves. Dirt net and ring activated carbon filter. The rainwater collection tank of the present invention can reduce the evaporation of the internal water body, and reduce the manual cleaning workload of the rainwater collection tank; the filter assembly can purify the rainwater to a greater degree and prolong the replacement cycle of the filter screen.

Description

An environment-friendly garden landscape rainwater collection and water recycling system

technical field

The invention relates to the technical field of garden landscape water, in particular to an environment-friendly garden landscape rainwater collection and recycling water system.

Background technique

Garden landscape can add a strong artistic atmosphere to cultural squares, parks and communities. At the same time, as a new type of ecological landscape product, its application and promotion are our practical actions to protect the environment and cherish nature. Garden landscape mainly includes garden vegetation, Artificial creeks, garden fountains and artificial ponds, etc., in the daily maintenance process of garden landscapes, it is usually necessary to use tap water to supply and irrigate garden landscapes, which not only increases the daily maintenance costs of garden landscapes, but also easily causes a large amount of water resources. waste, harvesting rainwater for the aforementioned applications can reduce water waste. The traditional garden landscape rainwater collection and water recycling system lacks preliminary treatment of the rainwater collected in the rainwater collection tank in the actual application process, which leads to the debris that flows into the rainwater collection tank with the rainwater easily to the water pipes inside the system. It causes blockage, which increases the difficulty of manual cleaning. At the same time, the rainwater collection tank in the existing garden landscape rainwater collection and recycling water system lacks the ability to resist overflow, which leads to excessive rainfall in the rainy season. The rainwater collection tank is easy to generate Overfilling phenomenon, and easy to cause soil erosion.

In the patent application publication number CN 110241887 A, an environment-friendly garden landscape rainwater collection and water recycling system is disclosed. , The water recycling equipment includes artificial creeks, garden fountains, garden irrigation and artificial ponds. Rainwater collection pools, high-level water supply pools and water storage pools are connected in sequence through water supply components. The filter residue components are installed in the rainwater collection pools. The artificial creek , garden fountains, garden irrigation and artificial ponds are connected to the high-level water supply pool and storage pool respectively through water supply components, which are safe and convenient to use. The garden uses water in the dry season, so that the garden landscape rainwater collection and recycling water system can be suitable for different seasons and have higher weather resistance. However, it has the following shortcomings: First, the top surface of the rainwater collection tank is open and only has a filter residue cover plate set horizontally. The accumulated water in the rainwater collection tank has a large amount of evaporation on sunny days, which is not conducive to saving the collected rainwater, and the filter residue There are a lot of debris and dust deposited on the cover, and the manual cleaning workload is large; second, the filter assembly only includes a layer of filter screen and a layer of activated carbon filter screen, which is not high enough to purify rainwater, and the replacement of the filter screen is relatively difficult. frequently.

SUMMARY OF THE INVENTION

1. Technical problems to be solved

The technical problem to be solved by the present invention is to provide an environment-friendly garden landscape rainwater collection and water recycling system, the rainwater collection tank of which can reduce the evaporation of the internal water body, and reduce the workload of manual cleaning of the rainwater collection tank; The degree of purification of rainwater is large, and the replacement cycle of the filter screen is prolonged, and the application is more convenient.

2. Technical solutions

In order to solve the above problems, the present invention adopts the following technical solutions:

An environment-friendly garden landscape rainwater collection and water recycling system, comprising a rainwater collection tank, a high-level water supply tank, a water storage tank and a filter assembly, the rainwater collection tank is communicated with the high-level water supply tank through an output water pipe, and the output water pipe is provided with a booster The pump, the bottom side of the high-level water supply pool is connected with a shunt water pipe, and the other end of the shunt water pipe is respectively connected with the water supply ends of the artificial creek, garden fountain, garden irrigation and artificial pond in the garden landscape in one-to-one correspondence. The water outlet of the artificial creek, garden fountain and artificial pond is connected with the water storage tank through the water collection pipe, the water storage tank is connected with the lower end of the rainwater collection tank through the return water pipe, and the upper end of the rainwater collection tank is connected with the overflow water pipe connected with the water storage tank;

The upper port of the rainwater collection tank is square, and the two widths along the sides are parallel with hinge shafts, and the hinge shaft is rotatably sleeved with a flip cover, the outer side of the side where the free end of the flip cover is located A hanging rope is fixedly connected to the top, and the other end of the hanging rope extends downward to the side of the rainwater collection tank and is connected with a lifting bucket with an open upper end face. The side of the lifting bucket facing the rainwater collection tank is fixed with a The slider is slidably connected with the rainwater collection tank, the left and right sides of the rainwater collection tank are provided with chute for the corresponding slider to slide up and down, the bottom of the lifting bucket is connected with a drain pipe, and the drain pipe is provided with There is a solenoid valve; the middle parts of the front and rear sides of the flip cover are connected with a return spring that is connected to the middle part of the length of the upper port of the rainwater collection tank. In the initial state, the free ends of the two flip covers are just close together and located in On the vertical centerline of the rainwater collection tank, the slider is located at the upper end of the chute;

The filter assembly includes two water filter boxes connected between one end of the output water pipe connected to the rainwater collection tank and the booster pump and connected to the water collection pipe. The middle parts of the two opposite sides of the water filter boxes are respectively connected with water inlet pipes. and a water outlet pipe, the upper end face of the water filter box is open and the water filter box is completely filled with a solid block, and the solid block is provided with two side-by-side aligned annular grooves and are located on the center line of the solid block and pass through. The two annular grooves are connected to the water flow channels of the water inlet pipe and the water outlet pipe. The annular groove corresponding to the side of the water inlet pipe is provided with an annular filter screen that can just rotate in the annular groove, and the corresponding annular groove on the side of the water outlet pipe is located in the annular groove. There is an annular activated carbon filter screen that can be rotated in the annular groove. The upper ends of the annular dirt filter screen and the annular activated carbon filter screen can be detachably installed with a circular mounting base plate, and the annular dirt filter screen and the annular activated carbon filter screen can be detachably installed. The outer side of the upper end of the filter screen is surrounded by a sealing ring fixed on the installation substrate, and the solid block is provided with two circular grooves that penetrate to the top surface of the solid block and are just used to respectively accommodate the corresponding installation substrate. The middle part of the top surface of the base plate is fixed with a rotating handle extending above the water filter box.

Further, the top of the water storage tank is lower than the top of the rainwater collection tank, and the return water pipe is provided with a one-way valve that opens toward the rainwater collection tank. This arrangement can expand the volume of the rainwater collection tank, and it is also beneficial for the water in the overflow pipe to automatically flow into the storage tank; the setting of the one-way valve can prevent the water in the rainwater collection tank from directly flowing into the storage tank from the return water pipe, and promote the water body to follow the rainwater. The sequence of collection pool-high water supply pool-garden landscape water facility-water storage pool-rainwater collection pool flows steadily.

Further, the diameter of the lower half of the rainwater collection tank is larger than the diameter of the upper half. In the application, the lower part of the rainwater collection tank can be buried underground, which is convenient to provide a large water storage volume.

Further, the upper end of the front of the rainwater collection tank is provided with a horizontally arranged cleaning port, and the left and right side walls of the rainwater collection tank are provided with pull-out grooves located in the horizontal plane at positions corresponding to the height of the cleaning port. A filter screen plate facing the cleaning port is commonly inserted between the pull-out slots, and a pull-out handle protruding from the outside of the cleaning port is fixed on the front surface of the filter screen plate. Setting up the filter plate can filter the rainwater when it enters the rainwater collection tank, which can prevent large debris from entering the rainwater collection tank. The plate can be pulled out from the cleaning port, and the pull-out groove plays a guiding role.

Further, the side wall of the circular groove and the side surface of the corresponding mounting substrate are connected by means of screw connection, and the lower ends of the annular filter screen and the annular activated carbon filter screen are both fixed with elastic cushions. The threaded connection between the circular groove and the mounting base plate can ensure that the bottom surface of the annular filter screen and the annular activated carbon filter are tightly pressed in the annular groove, and at the same time, it has the effect of secondary sealing; When the activated carbon filter screen changes the action part, because of the threaded connection between the circular groove and the mounting base plate, there is a slight movement in the longitudinal direction of the annular filter screen and the annular activated carbon filter screen. The setting of the elastic cushion can meet the aforementioned trace amount The need for movement ensures that the bottom surface of the annular filter screen and the annular activated carbon filter screen contacts the bottom surface of the water flow channel.

3. Beneficial effects

(1) In the present invention, flip cover plates are hinged on both sides of the upper port of the rainwater collection tank. In the initial state, the free ends of the two flip cover boards are overlapped together and located above the rainwater collection tank, and the two flip cover boards are located above the rainwater collection tank. The opposite sides of the rainwater collection tank are connected with return springs connected to the top surface of the rainwater collection tank, and the side where the free end of the outer side of the flip cover is located is hung with a lifting bucket located beside the rainwater collection tank through hanging ropes. In the application, when it rains, the rainwater will fall into the lifting bucket. When the gravity of the lifting bucket itself and its internal water body is enough to break through the elastic force of the return spring, the lifting bucket can move down along the chute and pass the hanging rope. Pull the flip cover to make it rotate to the outside around its hinged end, allowing a large amount of rainwater to fall directly into the rainwater collection tank to achieve the effect of expanding the receiving area, and the inner side of the flip cover is in contact with rainwater, avoiding rainwater The sundries contained in the collected rainwater are increased by contact with the exposed and easily stained outer surface, which facilitates the subsequent purification treatment of the collected rainwater, prolongs the cleaning period of the filter screen, and reduces the manual cleaning work. After the rain is over, the solenoid valve can be remotely opened by electronic control, so that the water in the lifting bucket can be discharged through the drain pipe, and under the reset action of the reset spring, the flip cover can be driven to rotate inward to reset, and pull the lift. The bucket rises and resets; when there is no rain, the cover plate is turned over to cover the top of the rainwater collection tank, which can significantly reduce the evaporation of the water body in the rainwater collection tank, which is conducive to saving the collected rainwater, and also reduces the entry of debris into the rainwater collection tank, and the cover plate is turned over. The outer side of the machine is inclined, which can reduce the dust and debris deposited by itself, and greatly reduce the workload of manual cleaning.

(2) The filter assembly of the present invention includes two water filter boxes respectively connected to the water outlet end of the rainwater collection tank and the water inlet end of the water storage tank. The water filter box is provided with two annular grooves and a water flow channel passing through the two annular grooves. Each annular groove is provided with an annular filter screen and an annular activated carbon filter. In application, the water in the water flow channel first passes through the two opposite sides of the annular filter screen (equivalent to passing through two layers of filter screens), and then passes through the annular filter. The two opposite sides of the activated carbon filter (equivalent to passing through two layers of annular activated carbon filters) are discharged through the outlet pipe, which increases the degree of purification of rainwater; When the degree of contamination of the active part is high, the ring filter and the ring activated carbon filter can be rotated to replace the active part of the ring filter and the ring activated carbon filter. After full utilization, the ring filter and the ring activated carbon filter are replaced, which greatly prolongs the replacement cycle of the ring filter and the ring activated carbon filter, avoids frequent filter replacement, and is convenient to use.

To sum up, the rainwater collection tank of the present invention can reduce the evaporation of the internal water body, and reduce the workload of manual cleaning of the rainwater collection tank; the filter assembly can purify the rainwater to a greater degree and prolong the replacement cycle of the filter screen. more convenient.

Description of drawings

Fig. 1 is the structural representation of the present invention;

2 is a schematic diagram of the external structure of the rainwater collection tank 1 in the initial state;

3 is a schematic diagram of the internal structure of the rainwater collection tank 1 in an initial state;

FIG. 4 is a schematic diagram of the internal structure of the rainwater collection tank 1 in a working state;

5 is a top view of the water filter box 20;

Fig. 6 is the structural representation of A-A section in Fig. 5;

FIG. 7 is a schematic structural diagram of the section B-B in FIG. 6 .

Reference signs: 1. Rainwater collection tank; 2. High-level water supply tank; 3. Water storage tank; 4. Output water pipe; 5. Booster pump; 6. Diversion water pipe; 7. Collection water pipe; Water pipe; 10. Hinged shaft; 11. Flip cover; 12. Hanging rope; 13. Lifting bucket; 14. Slider; 15. Chute; 16. Drain pipe; 17. Solenoid valve; 18. Return spring; 19, one-way valve; 20, water filter box; 21, water inlet pipe; 22, water outlet pipe; 23, solid block; 24, annular groove; 25, water flow channel; 26, annular filter screen; 27, annular activated carbon filter screen ; 28, mounting base plate; 29, sealing ring; 30, circular groove; 31, rotary handle; 32, cleaning port; 33, pull groove; 34, filter plate; 35, pull handle; 36, elastic pad Floor.

Detailed ways

The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Example

As shown in Figure 1, an environment-friendly garden landscape rainwater collection and water recycling system includes a rainwater collection tank 1, a high-level water supply tank 2, a water storage tank 3 and a filter assembly. The rainwater collection tank 1 is connected to a high-level water supply through an output water pipe 4. The pool 2 is connected, and the output water pipe 4 is provided with a booster pump 5. The bottom side of the high-level water supply pool 2 is connected with a shunt water pipe 6, and the other end of the shunt water pipe 6 is respectively connected with the artificial creek and garden in the garden landscape. The water supply ends of fountains, garden irrigation and artificial ponds are connected in a one-to-one correspondence, and the water outlets of the artificial creeks, garden fountains and artificial ponds are connected to the storage tank 3 through the collection water pipe 7, and the storage tank 3 is connected to the rainwater collection tank through the return water pipe 8 The lower end of 1 is connected, and the upper end of the rainwater collection tank 1 is connected with an overflow water pipe 9 that is communicated with the storage tank 3;

The top of the storage tank 3 is lower than the top of the rainwater collection tank 1, and the return water pipe 8 is provided with a one-way valve 19 that opens toward the rainwater collection tank 1, which can expand the volume of the rainwater collection tank 1 and is also conducive to overflow water. The water in the pipe 9 automatically flows into the water storage tank 3; the setting of the one-way valve 19 can prevent the water in the rainwater collection tank 1 from directly flowing into the water storage tank 3 from the return water pipe 8, and promote the water body according to the rainwater collection tank 1-high water supply tank 2 - The order of garden landscape water facilities - storage tank 3 - rainwater collection tank 1 is stable;

As shown in Figure 2, Figure 3 and Figure 4, the diameter of the lower half of the rainwater collection tank 1 is larger than the diameter of the upper half. Larger water storage capacity; the upper end of the front of the rainwater collection tank 1 is provided with a horizontally arranged cleaning port 32, and the positions corresponding to the height of the cleaning port 32 on the left and right side walls of the rainwater collection tank 1 are provided in the horizontal plane. A filter screen plate 34 facing the cleaning port 32 is inserted between the two pull-out grooves 33. The front side of the screen screen plate 34 is fixed with a suction port extending out of the cleaning port 32. Pull the handle 35 and set the filter plate 34 to filter the rainwater when it enters the rainwater collection tank 1, which can prevent large debris from entering the rainwater collection tank 1. When the debris on the filter plate 34 needs to be cleaned, only Hold the pull handle 35 to pull out the screen plate 34 from the cleaning port 32, and the pull groove 33 plays a guiding role; the upper port of the rainwater collection tank 1 is square, and its two widths are parallel along the sides. A hinge shaft 10 is provided, a flip cover 11 is rotatably sleeved on the hinge shaft 10, and a hanging rope 12 is fixedly connected to the outer surface of the side where the free end of the flip cover 11 is located. The hanging rope 12 The other end extends downward to the side of the rainwater collection tank 1 and is connected with a lifting water bucket 13 with an open upper end surface. Block 14, the left and right sides of the rainwater collection tank 1 are provided with chute 15 for the corresponding slider 14 to slide up and down, the bottom of the lifting bucket 13 is connected with a drain pipe 16, and the drain pipe 16 is provided with Solenoid valve 17; the middle part of the front and rear sides of the flip cover 11 is connected to a return spring 18 connected to the middle part of the length of the upper port of the rainwater collection tank 1. In the initial state, as shown in Figures 2 and 3, the two The free ends of the flip cover 11 are just close to each other and are located on the vertical centerline of the rainwater collection tank 1, and the slider 14 is located at the upper end of the chute 15;

The filter assembly includes two water filter boxes 20 connected between one end of the output water pipe 4 connected to the rainwater collection tank 1 and the booster pump 5 and connected to the water collection pipe 7, as shown in Figure 5, Figure 6 and Figure 7. , the middle parts of the two opposite sides of the water filter box 20 are respectively connected with a water inlet pipe 21 and a water outlet pipe 22, the upper end surface of the water filter box 20 is open, and the water filter box 20 is completely filled with a solid block 23, so The solid block 23 is provided with two parallel and aligned annular grooves 24 and a water flow channel 25 located on the center line of the solid block 23 and passing through the two annular grooves 24 and communicating with the water inlet pipe 21 and the water outlet pipe 22, and the side where the water inlet pipe 21 is located. The corresponding annular groove 24 is provided with an annular filter screen 26 that can just rotate in the annular groove 24, and the annular groove 24 corresponding to the side where the water outlet pipe 22 is located is provided with an annular activated carbon that can just rotate in the annular groove 24. The filter screen 27, the upper ends of the annular filter screen 26 and the annular activated carbon filter screen 27 can be detachably installed with a circular mounting base plate 28, and the outer sides of the upper ends of the annular filter screen 26 and the annular activated carbon filter screen 27 are both surrounded by There is a sealing ring 29 fixed on the mounting substrate 28. The solid block 23 is provided with two circular grooves 30 penetrating to the top surface of the solid block 23 and just used to respectively accommodate the corresponding mounting substrate 28. The mounting substrate A rotating handle 31 extending to the top of the water filter box 20 is fixed in the middle of the top surface of the 28; The lower ends of the mesh 26 and the annular activated carbon filter 27 are fixed with an elastic cushion 36, and the threaded connection between the circular groove 30 and the mounting base plate 28 can ensure that the bottom surface of the annular filter 26 and the annular activated carbon filter 27 are tightly connected. It is pressed in the annular groove 24, and at the same time has the effect of secondary sealing; when the annular filter screen 26 and the annular activated carbon filter screen 27 change their function parts, because of the threaded connection between the circular groove 30 and the mounting base plate 28, The annular dirt filter 26 and the annular activated carbon filter 27 are caused to move slightly in the longitudinal direction, and the elastic cushion layer 36 can meet the requirements of the aforementioned micro-movement, ensuring that the bottom surfaces of the annular dirt filter 26 and the annular activated carbon filter 27 are in contact with each other. The bottom surface of the water flow channel 25 .

The specific working principle of the above-mentioned environmental protection garden landscape rainwater collection and water recycling system is as follows:

When there is no rainfall, the flip cover 11 is in the initial state, and the two flip covers 11 are overlapped together to cover the top of the rainwater collection tank 1, which can significantly reduce the evaporation of the water body in the rainwater collection tank 1, which is beneficial to save the collected rainwater. It can also reduce the entry of sundries into the rainwater collection tank 1, and the outer side of the flip cover 11 is inclined, which can reduce the dust and sundries deposited by itself, and greatly reduce the workload of manual cleaning;

When it rains, the rainwater will fall into the lifting bucket 13. When the gravity of the lifting bucket 13 itself and its internal water body is enough to break through the elastic force of the return spring 18, the lifting bucket 13 can be moved down along the chute 15, and the lifting bucket 13 can be moved down through the hoist. The hanging rope 12 pulls the flip cover 11 to rotate to the outside around its hinged end, that is, the flip covers 11 on both sides unfold outwards at the same time, allowing a large amount of rainwater to fall directly into the rainwater collection tank 1, which is realized by the lifting bucket 13. The automatic unfolding of the flip cover 11 is convenient for application; the flip cover 11 can form an inclined surface that gradually increases from its hinged end to the free end, so as to achieve the effect of expanding the receiving area, thereby increasing the amount of rainwater collected; The inner side of 11 is in contact with the rainwater, which avoids the sundries contained in the collected rainwater increasing due to the contact of the rainwater with the exposed outer side which is easy to contaminate, and provides convenience for the subsequent purification treatment of the collected rainwater, making the filter screen The cleaning cycle of the plate 34 is extended, which reduces the workload of manual cleaning; after the rain is over, the solenoid valve 17 can be remotely opened by electronic control, so that the water in the lifting bucket 13 can be discharged through the drain pipe 16, and the return spring 18 Under the reset action, the flip cover 11 can be driven to rotate to the inside to reset, and the lifting bucket 13 can be pulled to rise and reset;

The water in the rainwater collection tank 1 is filtered and processed by the water filter box 20 and then enters the high-level water supply tank 2 under the action of the booster pump 5, and then the water body is supplied to the artificial creek, garden fountain, garden irrigation and artificial water through the diversion pipe 6. The water used for ponds, artificial creeks, garden fountains and artificial ponds is filtered and processed by the water filter box 20 at the outlet end and flows into the storage tank 3 along the collection water pipe 7, and finally returns to the rainwater collection tank 1 through the return water pipe 8. , constitute a circulating water system; the filtering treatment of the water body by the water filter box 20 is specifically: the water body flows into the water filter box 20 from the water inlet pipe 21, mainly flows along the water flow channel 25 to the water outlet pipe 22, and the water body first passes through the two opposite sides of the annular filter screen 26. side (equivalent to passing through two layers of filter nets), then pass through the two opposite sides of the annular activated carbon filter screen 27 (equivalent to passing through two layers of annular activated carbon filter nets 27), and then discharge through the water outlet pipe 22, which increases the size of the The degree of purification of rainwater; when the contamination degree of the parts of the ring filter 26 and the ring activated carbon filter 27 in contact with the water body is relatively high, the ring filter 26 and the ring activated carbon filter 27 can be driven to rotate by rotating the handle 31. To realize the replacement of the functional parts of the annular dirt filter 26 and the annular activated carbon filter 27, after the annular dirt filter 26 and the annular activated carbon filter 27 are fully utilized as a whole, the mounting base plate 28 is unscrewed from the circular groove 30, The annular dirt filter 26 and the annular activated carbon filter 27 can be replaced, which greatly prolongs the replacement cycle of the annular dirt filter 26 and the annular activated carbon filter 27, avoids frequent filter replacement, and is convenient to use.

It can be seen from the above content that the rainwater collection tank of the present invention can reduce the evaporation of the internal water body, and reduce the manual cleaning workload of the rainwater collection tank; the filter assembly can purify the rainwater to a greater degree and prolong the replacement cycle of the filter screen. , the application is more convenient.

Those skilled in the art should realize that the above embodiments are only used to illustrate the present invention, but not to limit the present invention. Changes and modifications will fall within the scope of the claims of the present invention.

Claims (5)

1. An environment-friendly garden landscape rainwater collection and water recycling system, comprising a rainwater collection pool (1), a high-level water supply pool (2), a water storage pool (3) and a filter assembly, the rainwater collection pool (1) passing through an output water pipe (4) It is communicated with the high-level water supply pool (2), and the output water pipe (4) is provided with a booster pump (5). The other ends of the water pipes (6) are respectively connected with the water supply ends of the artificial creeks, garden fountains, garden irrigation and artificial ponds in the garden landscape in one-to-one correspondence. (7) is connected with the water storage tank (3), the water storage tank (3) is connected with the lower end of the rainwater collection tank (1) through the return water pipe (8), and the upper end of the rainwater collection tank (1) is connected with the water storage tank (3) The overflow water pipe (9); it is characterized in that: The upper port of the rainwater collection tank (1) is square, and the two widths along the sides are provided with a hinge shaft (10) in parallel, and a flip cover plate (11) is rotatably sleeved on the hinge shaft (10), A hanging rope (12) is fixedly connected to the outer surface of the side where the free end of the flip cover (11) is located, and the other end of the hanging rope (12) extends downward to the side of the rainwater collection tank (1). A lift water bucket (13) with an open upper end face is connected to the side, and a slider (14) slidingly connected to the rainwater collection pool (1) is fixed on the side of the lift water bucket (13) facing the rainwater collection pool (1), The left and right sides of the rainwater collecting tank (1) are provided with chute (15) for the corresponding sliding block (14) to slide up and down, and the bottom of the lifting bucket (13) is connected with a drain pipe (16), so the The drain pipe (16) is provided with a solenoid valve (17); the middle part of the front and rear sides of the flip cover plate (11) is connected with a return spring (18) connected to the middle part of the length of the upper port of the rainwater collection tank (1), In the initial state, the free ends of the two flip covers (11) are just close to each other and are located on the vertical centerline of the rainwater collection tank (1), and the slider (14) is located in the chute (15) the upper end of ; The filter assembly includes two water filter boxes (20) connected between one end of the output water pipe (4) connected to the rainwater collection tank (1) and the booster pump (5) and connected to the water collection pipe (7), so The middle parts of the two opposite sides of the water filter box (20) are respectively connected with a water inlet pipe (21) and a water outlet pipe (22), the upper end face of the water filter box (20) is open and the water filter box (20) is completely filled A solid block (23) is provided in the solid block (23), and two annular grooves (24) aligned side by side and located on the center line of the solid block (23) and passing through the two annular grooves (24) and The water flow channel (25) that communicates with the water inlet pipe (21) and the water outlet pipe (22) is provided with an annular filter that can just rotate in the annular groove (24) in the annular groove (24) corresponding to the side where the water inlet pipe (21) is located. A sewage net (26), and a ring-shaped activated carbon filter screen (27) that can just be rotated in the annular groove (24) is arranged in the annular groove (24) corresponding to the side where the water outlet pipe (22) is located. (26) and the upper end of the annular activated carbon filter screen (27) can be detachably installed with a circular mounting base plate (28), and the annular filter screen (26) and the annular activated carbon filter screen (27) are both surrounded by the outer sides of the upper ends of the upper ends. There is a sealing ring (29) fixed on the installation base plate (28), and the solid block (23) is provided with two penetrating rings which penetrate to the top surface of the solid block (23) and are just used for accommodating the corresponding installation base plate (28) respectively. In the circular groove (30), a rotating handle (31) extending above the water filter box (20) is fixed in the middle of the top surface of the mounting base plate (28). 2. An environment-friendly garden landscape rainwater collection and water recycling system according to claim 1, wherein the top of the storage tank (3) is lower than the top of the rainwater collection tank (1), and the return water pipe (8) is provided with a one-way valve (19) that opens toward the rainwater collection tank (1). 3. An environment-friendly garden landscape rainwater collection and water recycling system according to claim 1, characterized in that the diameter of the lower half of the rainwater collection tank (1) is larger than the diameter of the upper half. 4. An environment-friendly garden landscape rainwater collection and water recycling system according to claim 1, characterized in that, the front upper end of the rainwater collection tank (1) is provided with a horizontally arranged cleaning port (32), and the The left and right side walls of the rainwater collection tank (1) are provided with pull-out grooves (33) located in the horizontal plane at positions corresponding to the height of the cleaning port (32), and the two pull-out grooves (33) are connected together. A filter screen plate (34) facing the cleaning port (32), and a pull handle (35) extending out of the cleaning port (32) is fixed on the front surface of the screen screen plate (34). 5. An environment-friendly garden landscape rainwater collection and water recycling system according to claim 1, wherein the side walls of the circular grooves (30) pass through the side walls of the corresponding installation substrates (28). They are connected by means of screw connection, and elastic cushion layers (36) are fixed on the lower ends of the annular dirt filter screen (26) and the annular activated carbon filter screen (27).

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