CN212866145U - Rainwater collecting and utilizing device - Google Patents

Abstract

The utility model relates to a rainwater is collected and is utilized device, collect container, main retaining container, watering retaining container and domestic water retaining container including the rainwater, the top of rainwater collection container is uncovered, the bottom with main retaining container's top intercommunication, main retaining container's bottom with watering retaining container's top intercommunication, be equipped with horizontally first filter layer in the rainwater collection container, be equipped with the horizontally second filter layer in the main retaining container, watering retaining container's upper portion with domestic water retaining container's top intercommunication is equipped with the filtration dielectric layer that covers its cross section in the pipeline of intercommunication. The utility model discloses be equipped with a plurality of water storage containers, the water storage capacity is big, and water treatment capacity is strong, and the rainwater of collecting is stored respectively in different water storage containers after the filtration treatment of different ranks, can regard as crops watering water and domestic water to use respectively, and the usage is extensive, can effectively alleviate the condition or the drought of regional water shortage.

Description

Rainwater collecting and utilizing device

Technical Field

The utility model relates to a rainwater is collected and is utilized device belongs to the rainwater and collects the technical field of recycling.

Background

The rainwater collecting device is mainly equipment for collecting rainwater in rainy days and recycling the rainwater after corresponding treatment. The traditional rainwater collecting device usually uses collected rainwater for supplementing domestic water or underground water, has small water storage amount, short service time and single use, and is not usually subjected to purification treatment. However, for the regions with severe seasonal drought or water shortage, especially for the farmlands, orchards or forest gardens far away from water sources, the traditional rainwater collecting device cannot meet the requirement of supplementing water, a large-capacity water storage facility is often required to be arranged, the existing rainwater collecting device is not suitable for large capacity, and even under small capacity, the phenomenon of water quality deterioration can easily occur due to long-time water storage because a large amount of organic matters and the like are often carried in rainwater.

SUMMERY OF THE UTILITY MODEL

For overcoming the above-mentioned defect of prior art, the utility model provides a device is collected and utilized to the rainwater can carry out the multipurpose use with the rainwater of collecting after different ranks filtration treatment.

The utility model discloses realize above-mentioned purpose's technical scheme is: a rainwater collecting and utilizing device comprises a rainwater collecting container, a main water storage container, an irrigation water storage container and a domestic water storage container, wherein the top end of the rainwater collecting container is open, the main water storage container, the domestic water storage container and the irrigation water storage container are closed containers, the bottom of the rainwater collecting container is provided with a water outlet communicated with a water inlet of the main water storage container, the water level of the irrigation water storage container is lower than that of the main water storage container, the water outlet of the main water storage container is connected with the water inlet of the irrigation water storage container through a main water storage and outlet pipe, a horizontal first filter layer covering the cross section of the irrigation water storage container is arranged in the rainwater collecting container, a horizontal second filter layer covering the cross section of the irrigation water storage container is arranged in the main water storage container, and a second water outlet is arranged at the upper part of the, the top of domestic water retaining container or the upper portion of lateral wall are equipped with the water inlet, the height that highly is less than of domestic water retaining container's water inlet waters the height of retaining container's second delivery port, domestic water retaining container's water inlet passes through domestic water and advances water piping connection waters retaining container's second delivery port.

Typically, the water inlet of the primary reservoir may be located at the top of the primary reservoir or at an upper portion of the side wall.

The irrigation water reservoir may be located below or otherwise below the primary water reservoir.

The water outlet of the main reservoir may be provided at the bottom or lower portion of the sidewall thereof.

The water inlet of the irrigation and water storage container can be arranged on the top or the upper part of the side wall of the irrigation and water storage container.

Preferably, the mesh number of the second filter layer is larger than that of the first filter layer.

Preferably, the bottom or the lower part of the side wall of the irrigation water storage container is provided with a first water outlet, the first water outlet of the irrigation water storage container is connected with an irrigation water outlet pipe, the water outlet end of the irrigation water outlet pipe is connected with a watering spray head, the water inlet end side of the irrigation water outlet pipe is provided with a switch valve, and the irrigation water outlet pipe is provided with a water pump.

Preferably, the water pump is a solar water pump, and is provided with a solar power generation device for supplying power to the water pump.

Preferably, be equipped with the first rand of horizontally on the inner wall of rainwater collecting container, the outer fringe of first filter layer with first rand joint cooperation.

Preferably, a horizontal second clamping ring is arranged on the inner wall of the main water storage container, and the outer edge of the second filter layer is in clamping fit with the second clamping ring.

Preferably, the rainwater collection container has a flared shape with a large top and a small bottom (for example, an inverted truncated cone shape).

Preferably, the upper portion of the lateral wall of main retaining container is equipped with the overflow mouth, the overflow valve is installed to the overflow mouth, the bottom of main retaining container is equipped with the drain, main blowoff valve that holds is installed to the drain of main retaining container.

Preferably, the bottom of the irrigation and water storage container is provided with a drain outlet, and the drain outlet of the irrigation and water storage container is provided with a irrigation and storage drain valve.

Preferably, the water inlet side of the domestic water inlet pipe is provided with a filter, a filter medium layer covering the cross section of the filter is arranged in the filter, the bottom of the domestic water storage container or the lower part of the side wall of the domestic water storage container is provided with a domestic water outlet, the domestic water outlet is connected with a domestic water outlet pipe, and the water outlet end of the domestic water outlet pipe is connected with a faucet.

Preferably, the filter medium layer of the filter is two layers, namely a filtering sponge layer and a coconut shell activated carbon layer, and the filtering sponge layer is positioned on the water inlet side of the coconut shell activated carbon layer.

The utility model has the advantages that:

1. the utility model discloses be equipped with a plurality of water storage containers, the water storage capacity is big, and water treatment capacity is strong, and the rainwater of collecting is stored respectively in different water storage containers after the filtration treatment of different ranks, can regard as crops watering water and domestic water to use respectively, and the usage is extensive, can effectively alleviate the condition or the drought of regional water shortage.

2. The utility model discloses simple structure, dismouting, operation, convenient to use can be used according to the retaining container and/or the subassembly assembly of the actual conditions of use area selection different water modes in a flexible way.

3. The utility model discloses the rainwater that will collect is used as crops watering water again after the second grade filters, uses as domestic water again after tertiary filtration, can effectively guarantee that the rainwater after filtration treatment accords with corresponding water quality standard.

4. The utility model discloses a watering water outlet pipe the water pump with the subassembly that waters such as shower nozzle of watering can realize the automatic watering to crops, can effectively save the labour, improves watering work efficiency, the water pump adopts solar energy water pump, but make full use of natural energy, not only energy-conservation but also safety, environmental protection.

5. The utility model discloses a truncated cone shape setting of inversion of rainwater collection container makes the follow the uncovered inside rainwater that gets into in top of rainwater collection container can flow into each water storage container fast along the inner wall of its slope and impound, when the urgent need water, can carry out filtration treatment and use from watering water and/or domestic water's play water end output fast to the rainwater when collecting the rainwater, the collection speed of rainwater is fast, collects effectually, recycles fastly, efficient.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

figure 2 is a schematic view of the construction of the second filter layer relating to the main reservoir.

Detailed Description

Referring to fig. 1, the utility model discloses a rainwater collecting and utilizing device, which comprises a rainwater collecting container 1, a main water storage container 2 and an irrigation water storage container 3, wherein the top end of the rainwater collecting container is open, so that rainwater can be collected in rainy days and surface runoff can be introduced, the main water storage container and the irrigation water storage container are closed containers, so as to store water and avoid evaporation loss, the bottom of the rainwater collecting container is communicated with the top of the main water storage container, so that rainwater collected by the rainwater collecting container can rapidly flow into the main water storage container by means of gravity to store water, the irrigation water storage container is positioned below the main water storage container, either directly below the main water storage container or below the main water storage container within a space range, namely the top wall of the irrigation water storage container is lower than the bottom of the main water storage container or at least the design of the irrigation water storage container is lower than the design of the main water storage container, the rainwater collecting device is communicated with the main water storage container through an underwater channel or an overflow channel, for example, a main water storage container water outlet is arranged at the bottom of the main water storage container, a water inlet of an irrigation water storage container is arranged on the top wall of the irrigation water storage container, the main water storage container water outlet is connected with the water inlet of the irrigation water storage container through a main water storage and outlet pipe 4, so that stored water in the main water storage container can flow into the irrigation water storage container as irrigation water to be stored by means of gravity, a horizontal first filtering layer 5 covering the cross section of the rainwater collecting container is arranged in the rainwater collecting container, a horizontal second filtering layer 6 covering the cross section of the rainwater collecting container is arranged in the main water storage container, rainwater collected by the rainwater collecting container enters the main water storage container after being filtered by the first filtering layer in the rainwater collecting container, and enters the irrigation water storage container as irrigation water after being filtered by the, the rainwater collected by the rainwater collection container can be effectively ensured to meet the water quality standard of irrigation water of various crops after being subjected to secondary filtration, and is particularly favorable for maintaining the water quality in the container (the filtered water outlet side) and long-term water storage.

The first filtering layer can be a filtering net or a first filtering net, the top surface of the first filtering layer is provided with a rough filtering grid, and the second filtering layer can also be a filtering net or a second filtering net.

The mesh number of the second filter layer is preferably larger than that of the first filter layer, so that rainwater filtered by the first filter layer can be further filtered by the second filter layer. The first filter layer is preferably a filter mesh of 50-60 meshes, such as 50 meshes, 55 meshes or 60 meshes, and the second filter layer is preferably a filter mesh of 80-100 meshes, such as 80 meshes, 90 meshes or 100 meshes. The first filter layer with the filter screen of non-metallic material is preferred to the second filter layer, avoids long-time use to produce the scaling and enters into the retaining in the follow-up container and influence quality of water.

Referring to fig. 2, when the large-scale device, especially the main body is a structure, the second filter layer may be set as a particle filter layer according to actual needs, the particle filter layer may include a gravel filter layer 61, a sand filter layer 62 and a gravel water collecting layer 63 from top to bottom, a support partition plate is arranged under the gravel water collecting layer, the gravel water collecting layer is laid on the support partition plate, the sand filter layer is laid on the gravel water collecting layer, and the gravel filter layer is laid on the sand filter layer.

The second filter layer is provided with a water guide pipe 66 and a water collection pipe 68, the water guide pipe is a vertical pipe and penetrates through the second filter layer and a supporting clapboard below the second filter layer, a pipe orifice cover capable of sealing the pipe orifice can be arranged on the pipe orifice at the upper end, the pipe orifice cover can be screwed on the upper pipe orifice of the water guide pipe and is sealed with the upper pipe orifice of the water guide pipe by a sealing gasket, the lower pipe orifice is positioned in the space below the supporting clapboard, the water collecting pipe is laid in the gravel water collecting layer, the inner end (the connecting end of the water guiding pipe) is connected with the corresponding water guiding pipe, the outer end is closed, water collecting through holes are distributed on the pipe wall of the water collecting pipe, water in the gravel water collecting layer flows into the water collecting pipe through the water collecting through holes, the water entering the main water storage container 2 enters the gravel water collecting layer through the gravel filtering layer and the sand filtering layer, then enters the water guide pipe through the water collecting pipe, and flows into the space below the water guide pipe through the water guide pipe.

For smaller area (horizontal cross-sectional area) primary reservoirs, the conduits are centrally located, the conduits extend radially, equiangularly spaced, and the outer ends extend to close proximity to the inner wall of the primary reservoir.

When main retaining container 2's area is great, the second filter layer can divide into a plurality of subregion, and each subregion all is equipped with a aqueduct and a plurality of collector pipe, the aqueduct is located the central authorities of subregion, the outer end of collector pipe extends to the marginal part of this subregion, and the collector pipe of adjacent subregion can be crisscross each other to evenly catchment as far as possible, each collector pipe of same subregion can distribute according to the mode that makes the catchment flow of each collector pipe roughly the same.

The bottom of main water storage container can be equipped with mud scraper 128, the pivot of mud scraper is vertical, is connected with a plurality of radial extension scraper bars 126, install a plurality of scraper blades 127 below the scraper bar, the scraper blade has certain slope for radially, nearly center end forward (lie in the front of distal end in circumference) each scraper blade on same scraper bar in radial projection have certain overlapping each other, avoid omitting, when mud scraper during operation, its driving motor drives the scraper bar rotatory, the base and the container bottom surface contact of scraper blade strike off sedimentary mud, push away mud to radial outside through inclination simultaneously, until getting into the row's of being located marginal area mud mouth 12.

The upper part 121 of the sludge discharge opening is bucket-shaped, so as to be beneficial to collecting sludge pushed by the sludge scraping plate.

The lower part of the main water storage container is provided with a submersible pump (so as to avoid conflict with a mud scraper), and when the mud scraper is not arranged, the submersible pump can be directly arranged at the bottom of the container. The outlet of the submersible pump is divided into two paths, one path is connected into a water guide pipe for backwashing, the other path extends out of the container to be used as water outlet according to requirements, a corresponding valve can be arranged on a pipeline to control the output direction, the bottom of the water guide pipe can be provided with a valve, when backwashing is carried out, the valve at the bottom of the water guide pipe and a top cover at the top of the water guide pipe (which can also adopt a valve form to facilitate automatic control) are closed, the water pumped into the water guide pipe by a submersible pump through the corresponding pipeline flows out through a water collecting through hole of the water collection pipe and flows upwards from a gravel water collection layer, a sand filtering layer and a gravel filtering layer are filtered, so that backwashing on the water collection pipe and a second filtering layer is realized, the backwashing water can be discharged through an overflow port 11, a special backwashing water outlet can also be arranged for discharging backwashing water, and the backwashing water outlet can, close to the second filter layer, the back washing water outlet is opened for back washing water discharge during back washing, and the back washing water is closed through a corresponding valve at ordinary times.

The rainwater collection container, the main water storage container and the irrigation water storage container can be one in number or a plurality in number, one-to-one, one-to-many or many-to-one connection modes can be adopted between two connected containers, the specific number, the placement position and the mutual connection mode of each container can be determined according to the actual water utilization condition of a use area of the rainwater collection and utilization device, the main water storage and outlet pipe with proper length can be selected according to the relative position between the main water storage container and the irrigation water storage container, and when the number of a certain container is a plurality, a plurality of same containers can be communicated or not communicated.

The utility model discloses a watering device, including watering retaining container, watering outlet pipe, switch valve 9, watering outlet pipe, distance between watering retaining container and the concrete watering region, the bottom of watering retaining container's bottom or lateral wall is equipped with watering retaining container's first delivery port, watering outlet pipe 7 is connected to watering retaining container's first delivery port, watering outlet pipe's the play water end is connected with watering shower nozzle 8, watering outlet pipe's the water inlet end side of watering is equipped with switch valve 9, the shower nozzle that waters sets up in needs watering region such as farmland, orchard or forest garden, watering outlet pipe can select suitable length in order to satisfy watering retaining container and concrete watering distance between the region, when needs use when the retaining in the watering retaining container waters crops. The number of the watering spray heads can be a plurality of, such as two, three or five, the watering spray heads are respectively connected with the water outlet ends of the watering water outlet pipes through branch pipes, when crops need to be watered, the watering spray heads work simultaneously, the watering range is wide, and the watering effect is good. The irrigation water outlet pipe is provided with a water pump 10 which is used for providing pressure for the output irrigation water after being opened, and the water pump preferably adopts a solar water pump, can fully utilize natural resources, and is energy-saving, safe and environment-friendly.

The rainwater collecting container is characterized in that a horizontal first clamping ring can be arranged on the inner wall of the rainwater collecting container, a horizontal second clamping ring can be arranged on the inner wall of the main water storage container, the outer edge of the first filter layer is matched with the first clamping ring in a clamping mode, the outer edge of the second filter layer is matched with the second clamping ring in a clamping mode, and the first filter layer and the second filter layer are convenient to disassemble, maintain and replace in the container where the first filter layer and the second filter layer are located.

The rainwater collection container can be the truncated cone shape of inversion, and the preferred truncated cone shape that is the inversion makes from its uncovered inside rainwater that gets into in top, can flow into each water storage container fast along the inner wall of its slope and impound, when the urgent need water, can carry out filtration treatment and export the use from the play water end fast to the rainwater when collecting the rainwater, the collection of rainwater is fast, and collection effect is good, and it is fast, efficient to recycle.

The top of the side wall of the main water storage container can be provided with an overflow port 11, when the water stored in the main water storage container is too much, the water can overflow from the overflow port, and an overflow valve can be installed on the overflow port. The bottom of the main water storage container can be provided with a drain outlet 12 of the main water storage container, the main water storage container is used for regularly discharging sediments such as mud and sand precipitated in the main water storage container, the phenomenon that the sediments are deposited for a long time and cause the main water storage outlet pipe to be blocked is avoided, and the drain outlet of the main water storage container can be provided with a main water storage drain valve and connected with a drain pipe.

Can be equipped with the drain 13 of watering reservoir on watering reservoir's the bottom, be used for the regular emission of sediments such as mud, the husky of watering reservoir internal sediment avoids the long-time siltation of sediment to cause watering water outlet pipe blocks up, watering reservoir's drain can be installed and water and hold the blowoff valve and be connected with the blow off pipe.

The rainwater collecting and utilizing device also preferably comprises a domestic water storage container 14 which is a closed container and is convenient for storing water, a second water outlet of the irrigation water storage container is arranged at the top of the side wall of the irrigation water storage container, a water inlet of the domestic water storage container is arranged on the top wall of the domestic water storage container or the top of the side wall of the domestic water storage container, the height of the water inlet of the domestic water storage container is lower than that of the second water outlet of the irrigation water storage container, the water inlet of the domestic water storage container is connected with the second water outlet of the irrigation water storage container through a domestic water inlet pipe 15, when the water level of the stored water in the irrigation water storage container reaches a certain height (the height of the second water outlet of the irrigation water storage container), the clear water at the upper part in the irrigation water storage container can overflow to enter the domestic water inlet pipe and can flow into the domestic water storage container by means of gravity to store water. The rainwater purification device is characterized in that a filter medium layer covering the cross section of the domestic water inlet pipe is arranged in the domestic water inlet pipe, or a filter is arranged on the domestic water inlet pipe, the filter medium layer covering the cross section of the domestic water inlet pipe is arranged in the filter, the filter medium layer can be used for filtering and purifying rainwater which is filtered twice (the first filter layer and the second filter layer), and the rainwater can be effectively ensured to meet the water quality standard of domestic water after being filtered in a three-stage manner. The bottom of domestic water retaining container's lateral wall is equipped with the domestic water delivery port, domestic water outlet pipe 16 is connected to the domestic water delivery port, the play water end of domestic water outlet pipe is connected with tap 17, the domestic water outlet pipe can select suitable length in order to satisfy distance between domestic water retaining container and the concrete water site, uses as needs during retaining in the domestic water retaining container, only need open tap can, according to the difference of the length of domestic water outlet pipe, can be equipped with or not be equipped with the water pump on the domestic water outlet pipe. The second delivery port of watering retaining container is located the setting at the top of watering retaining container's lateral wall can make the follow spill over in the watering retaining container and get into the water of domestic water inlet tube is the clear water after the sediment of stewing in the watering retaining container avoids mud, sand etc. that the aquatic carried to get into the domestic water inlet tube, it is right filter medium layer causes too big work load and causes the influence to quality of water.

The number of the domestic water storage containers can be one or a plurality of, the irrigation water storage containers and the domestic water storage containers can be connected in a one-to-one, one-to-many or many-to-one mode, the specific number, the placement positions and the mutual connection modes of the irrigation water storage containers and the domestic water storage containers can be determined according to the actual water utilization condition of the use area of the rainwater collecting and utilizing device, the domestic water inlet pipe with proper length can be selected according to the relative position between the irrigation water storage container and the domestic water storage container, and whether a water pump is arranged on the domestic water inlet pipe or not can be selected according to the length of the domestic water inlet pipe, when the number of the domestic water storage containers is a plurality, the plurality of the domestic water storage containers can be communicated or not communicated.

The filtering medium layer is preferably two layers, namely a filtering sponge layer 18 and a coconut shell activated carbon layer 19, and the filtering sponge layer is positioned on the water inlet side of the coconut shell activated carbon layer. The filtering sponge layer and the coconut shell activated carbon layer can be fixed in the domestic water inlet pipe or the filter in a fixing mode of a filtering medium layer suitable in the prior art. The domestic water inlet pipe is provided with the filtering medium layer, the pipe section of the filtering medium layer is preferably a vertical pipe section (the inner diameter of the vertical pipe section is preferably larger than the inner diameters of other pipe sections) or the axis of the filter is preferably vertical, the filtering sponge layer is positioned above the coconut shell activated carbon layer, so that water from the irrigation water storage container vertically passes through the filtering sponge layer and the coconut shell activated carbon layer downwards to improve the filtering speed and the filtering efficiency.

The material and manufacturing method of each container may be set as required, and for example, the container may be a metal container, and a corrosion-resistant layer may be preferably provided in the metal container, or a structure may be used. For example, a metal or plastic casing may be used for a small-capacity apparatus, a structure may be used for a large-capacity apparatus, or a metal or plastic material may be used for some of the containers and a structure may be used for some of the containers as required. An observation window may be provided, or an access door (e.g., a manhole), an access opening, etc., may be provided as needed. The filter material (filter screen, particle filter layer, etc.) can be determined according to the water quality of the collected raw water, and the layer number of the filter screen or the thickness and material of the particle filter layer can be selected according to the filtering requirement.

For large-scale devices, an aeration device can be arranged at the bottom of a main water storage container and/or at the bottom of a domestic water storage container, even at the bottom of an irrigation water storage container, aeration pipes can be adopted by the aeration device and are basically and uniformly distributed at the bottom of the corresponding container, aeration through holes are distributed on the aeration pipes, an air source (such as a Roots blower or even an air compressor system, which is a specific pressure requirement) for aeration arranged outside the container is connected with the aeration pipes through pipelines, and certain aeration is carried out according to actual needs so as to keep the concentration of dissolved oxygen in water and avoid spoilage.

The utility model discloses be equipped with a plurality of water storage containers, the water storage capacity is big, and water treatment capacity is strong, and the rainwater of collecting is stored respectively in different water storage containers after the filtration treatment of different ranks, can regard as crops watering water and domestic water to use respectively, and the usage is extensive, can effectively alleviate the condition or the drought of regional water shortage. The utility model discloses simple structure, dismouting, operation, convenient to use can be used according to the retaining container and/or the subassembly assembly of the actual conditions of use area selection different water modes in a flexible way.

Claims (10)

1. The utility model provides a rainwater is collected and is utilized device, its characterized in that includes rainwater collection container, main retaining container, watering retaining container and domestic water retaining container, the top of rainwater collection container is uncovered, main retaining container domestic water retaining container with watering retaining container is closed container, the bottom of rainwater collection container be equipped with the delivery port of main retaining container's water inlet intercommunication, watering retaining container's water level height is less than main retaining container's water level height, main retaining container's delivery port is through main holding the water piping connection watering retaining container's water inlet, be equipped with the first filter layer of the level that covers its cross section in the rainwater collection container, the top surface of first filter layer is equipped with coarse filtration grider, be equipped with the horizontal second filter layer that covers its cross section in the main retaining container, the upper portion of watering retaining container's lateral wall is equipped with the second delivery port, domestic water retaining container's top or the upper portion of lateral wall are equipped with the water inlet, the height that highly is less than of domestic water retaining container's water inlet waters retaining container's second delivery port, domestic water retaining container's water inlet passes through domestic water and advances water piping connection watering retaining container's second delivery port, main retaining container's bottom is equipped with the mud scraper, the pivot of mud scraper is vertical, is connected with a plurality of radial extension scraper bars.

2. A rainwater collection and utilization unit according to claim 1, characterised in that the mesh size of said second filter layer is larger than the mesh size of said first filter layer.

3. The rainwater collecting and utilizing device as claimed in claim 2, wherein the bottom or the lower part of the side wall of the irrigation water storage container is provided with a first water outlet, the first water outlet of the irrigation water storage container is connected with an irrigation water outlet pipe, the water outlet end of the irrigation water outlet pipe is connected with a watering spray head, the water inlet end side of the irrigation water outlet pipe is provided with a switch valve, and the irrigation water outlet pipe is provided with a water pump.

4. A rainwater harvesting and utilizing device according to claim 3 and further characterised in that said water pump is a solar water pump provided with solar power means for supplying power thereto.

5. The rainwater collection and utilization device according to claim 4, wherein a horizontal first collar is arranged on the inner wall of the rainwater collection container, a horizontal second collar is arranged on the inner wall of the main water storage container, the outer edge of the first filter layer is in clamping fit with the first collar, and the outer edge of the second filter layer is in clamping fit with the second collar.

6. A rainwater collecting and utilizing device as claimed in claim 5, wherein said rainwater collecting container is in the shape of a flared mouth with a large upper part and a small lower part.

7. A rainwater collecting and utilizing device as claimed in claim 6, wherein the upper part of the side wall of the main water storage container is provided with an overflow port, the overflow port is provided with an overflow valve, the bottom of the main water storage container is provided with a sewage draining outlet, and the sewage draining outlet of the main water storage container is provided with a main storage sewage draining valve.

8. The rainwater collection and utilization device of claim 7, wherein a drain outlet is arranged at the bottom of the irrigation water storage container, and a irrigation storage drain valve is arranged at the drain outlet of the irrigation water storage container.

9. The rainwater collecting and utilizing device according to the claim 1, 2, 3, 4, 5, 6, 7 or 8, characterized in that the inlet side of the domestic water inlet pipe is provided with a filter, the filter is internally provided with a filter medium layer covering the cross section of the filter, the bottom or the lower part of the side wall of the domestic water storage container is provided with a domestic water outlet, the domestic water outlet is connected with a domestic water outlet pipe, and the outlet end of the domestic water outlet pipe is connected with a tap.

10. The rainwater collecting and utilizing device as claimed in claim 9, wherein the filtering medium layer of said filter is two layers, namely a filtering sponge layer and a coconut shell activated carbon layer, and said filtering sponge layer is positioned at the water inlet side of said coconut shell activated carbon layer.

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