CN110258717B

CN110258717B - Rainwater recycling system

Info

Publication number: CN110258717B
Application number: CN201910611538.9A
Authority: CN
Inventors: 郭彩芬; 董志
Original assignee: Suzhou Vocational University
Current assignee: Suzhou Vocational University
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2021-08-10
Anticipated expiration: 2039-07-08
Also published as: CN110258717A

Abstract

The utility model provides a rainwater system of recycling for collect the rainwater at user's house top and to the inside recycling of user's house, including rainwater collector, two three-way valve, the water storage box, through-type overflow valve, the closestool, running water device and a plurality of user, rainwater collector locates the house top, rainwater collector communicates with the water storage box through the two three-way valve of vertical setting, two three-way valve is higher than the water storage box setting, the water storage box is installed inside the user's house, two three-way valve upper portion communicates with rainwater collector and controls the rainwater in the rainwater collector to flow in the water storage box, two three-way valve bottom and water storage box openable and closable intercommunication and it and next user openable and closable intercommunication, the water storage box communicates with through-type overflow valve and closestool respectively, but running water device opens and closable intercommunication through-type overflow valve and closestool. The rainwater recycling device is simple in structure, easy to implement and capable of effectively saving water resources.

Description

Rainwater recycling system

Technical Field

The invention relates to the technical field of water recycling, in particular to a rainwater recycling system.

Background

Water is an indispensable resource for human survival, but surface water and ground water are polluted as the population increases. Water resources around the world are increasingly in short supply, and at present, many cities in the world are short of water supply, and surface water is reduced due to the fact that underground water is excessively collected in many cities.

With the increasing shortage of water resources, the protection and reasonable utilization of water resources have been generally concerned by people, such as saving water and greatly promoting the secondary utilization of water resources. The southeast area of China has abundant rainwater, and the rainfall generally directly flows into a sewer and even causes that the urban waterlogging cannot be effectively utilized, so how to collect the rainfall and how to utilize the rainfall become an effective way for protecting water resources.

Although some rainwater reuse devices exist in the prior art, specific use processes, specific use steps, specific use functions and the like of the rainwater reuse device are not disclosed.

Therefore, it is desirable to provide a rainwater recycling system that has a simple structure, is easy to implement, and can effectively save water resources, in view of the disadvantages of the existing rainwater recycling devices.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a rainwater recycling system, which has a simple structure, is easy to implement, and can effectively save water resources.

In order to achieve the purpose, the invention adopts the technical scheme that: the rainwater collecting device is arranged at the top of a house, the rainwater collecting device is communicated with the water storage tank through the two-position three-way valve which is vertically arranged, the two-position three-way valve is higher than the water storage tank, the water storage tank is arranged inside the house of a user, the upper part of the two-position three-way valve is communicated with the rainwater collecting device and controls rainwater in the rainwater collecting device to flow into the water storage tank, the bottom of the two-position three-way valve is communicated with the water storage tank in an opening and closing mode and communicated with the next user in an opening and closing mode, the water storage tank is respectively communicated with the through overflow valve and the closestool, and the tap water device is communicated with the closestool in an opening and closing mode through the through overflow valve;

when the water pressure of the water storage tank is higher than the pressure of the two-position three-way valve, the water pressure of the water storage tank forces the two-position three-way valve to close the communication between the rainwater collector and the water storage tank and open the communication between the rainwater collector and the next user;

when the water pressure in the water storage tank is higher than that of the tap water device, the water pressure of the water storage tank forces the straight-through overflow valve to close the communication between the tap water device and the closestool;

when the water pressure in the water storage tank is lower than the water pressure of the tap water device, the water pressure of the tap water device forces the straight-through overflow valve to open the communication between the tap water device and the closestool.

Preferably, the two-position three-way valve comprises an upper valve body and a lower valve body, the upper valve body and the lower valve body are detachably and fixedly connected, the upper valve body is communicated with the rainwater collector, a valve input flow channel and a valve control flow channel are transversely formed in the lower valve body, the position of the valve input flow channel is higher than that of the valve control flow channel, the valve input flow channel and the valve control flow channel are arranged in a back-to-back mode, the two-position three-way valve is communicated with the water storage tank in an opening-closing mode through the valve input flow channel and the valve control flow channel, and the lower portion of the lower valve body is communicated with a next user.

Preferably, the two-position three-way valve comprises a valve core and a spring, a main runner is vertically arranged on the inner side of the upper valve body and communicated with the rainwater collector, an upper sliding runner is arranged in the middle of the inner side of the upper valve body and communicated with the upper sliding runner, a sub-runner is vertically arranged on the inner side of the lower valve body and communicated with the lower sliding runner, the middle of the inner side of the lower valve body is provided with a lower sliding runner, the upper sliding runner and the lower sliding runner are positioned on the same vertical straight line and communicated with each other, the sub-runner is communicated with the lower sliding runner, the sub-runner is communicated with a next user, two ends of the spring are respectively fixedly connected with the top wall of the upper sliding runner and the top end of the valve core, the valve core is connected in the upper sliding runner and the lower sliding runner in a sliding way through the spring, and the spring drives the valve core to control rainwater in the rainwater collector to enter the water storage tank from the main runner, the pressure of the water storage tank drives the bottom of the valve core to control rainwater in the rainwater collector to flow into the sub-channel from the main channel to enter the next user.

Preferably, a limiting ring is fixedly arranged on the inner side wall of the bottom of the lower sliding flow channel, and the bottom of the valve core can be detachably abutted against the limiting ring.

Preferably, a first blocking block, a second blocking block and a third blocking block are fixedly arranged on the periphery of the valve core from top to bottom in sequence, the main flow channel is communicated with the sub flow channel in an openable and closable manner through the side surface of the first blocking block, the main flow channel is communicated with the valve input flow channel in an openable and closable manner through the side surface of the second blocking block, and the main flow channel is communicated with the valve control flow channel in a closed manner through the third blocking block.

Preferably, the two-position three-way valve comprises an upper connection ring and a lower connection ring, a pipeline for rainwater circulation is inserted in the upper end of the upper connection ring, a pipeline for rainwater circulation is inserted in the lower end of the lower connection ring, the lower end of the upper connection ring is in threaded connection with the lower portion of the upper valve body, and the upper end of the lower connection ring is in threaded connection with the upper portion of the lower valve body.

Preferably, the upper positioning ring is annularly arranged and fixed at the lower part of the upper valve body, and the lower positioning ring is annularly arranged and fixed at the upper part of the lower valve body.

Preferably, the straight-through overflow valve comprises an overflow valve body and an overflow valve core, wherein an overflow control flow passage is vertically arranged in the overflow valve body, the overflow valve core can be connected in the overflow control flow passage in a sliding manner up and down, the overflow control flow passage is communicated with the water storage tank, an overflow input flow passage and an overflow output flow passage are transversely arranged on the overflow valve body, the overflow input flow passage is communicated with the tap water device, the overflow output flow passage is communicated with the toilet bowl, and the overflow control flow passage can be communicated with the overflow input flow passage and the overflow output flow passage in an opening and closing manner through the overflow valve core.

Preferably, the middle part of the overflow control flow channel is provided with a limiting flow channel concentric with the overflow control flow channel, the diameter of the limiting flow channel is larger than that of the overflow control flow channel, the upper part of the valve core can move up and down to abut against the top wall or the bottom wall of the limiting flow channel, the overflow output flow channel is communicated with the limiting flow channel, and the overflow input flow channel is positioned at the bottom of the limiting flow channel.

Preferably, the tap water device comprises a tap water pipe, a pressure reducing valve and a one-way valve, the tap water pipe is communicated with an external water source, the tap water pipe is communicated with the through overflow valve in an openable and closable manner, and the one end of the tap water pipe, which is far away from the through overflow valve, is sequentially provided with the one-way valve for controlling the one-way flow of tap water and the pressure reducing valve for adjusting the water pressure of the tap water.

Compared with the prior art, the rainwater recycling system provided by the invention has the advantages that the structure is simple, the implementation is easy, and the water resource can be effectively saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a flow chart of a rainwater reuse system according to the present invention;

FIG. 2 is a partial front view of a rainwater reuse system according to the present invention;

FIG. 3 is a schematic longitudinal cross-sectional view of FIG. 2;

fig. 4 is a sectional view of a straight-through overflow valve of a rainwater recycling system according to the present invention.

Reference numerals and component parts description referred to in the drawings:

1. a rainwater collector; 2. a two-position three-way valve; 21. an upper valve body; 211. a main flow channel; 212. an upward sliding runner; 22. a lower valve body; 221. a valve input flow passage; 222. controlling a flow passage; 223. a shunt channel; 224. a lower sliding runner; 2241. a limiting ring; 23. a valve core; 231. a first block; 232. a second block; 233. a third block; 24. a spring; 25. an upper connecting ring; 26. a lower connecting ring; 3. a water storage tank; 4. a straight-through overflow valve; 41. an overflow valve body; 411. an overflow control flow passage; 4111. a flow passage is limited; 412. an overflow input channel; 413. An overflow output flow channel; 42. an overflow valve core; 5. a toilet bowl; 6. a tap water device; 61. a tap water pipe; 62. a pressure reducing valve; 63. a one-way valve; 7. the next user; 8. a pipeline; 9. an upper positioning ring; 10. a lower retaining ring.

Detailed Description

The technical solution of the present invention will be clearly and completely described by the following detailed description. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, a rainwater recycling system for collecting rainwater on the top of a user's house and recycling the rainwater to the inside of the user's house includes a rainwater collector 1, a two-position three-way valve 2, a water storage tank 3, a straight-through overflow valve 4, a toilet bowl 5, a tap water device 6, and a plurality of users 7. The roof is located to rainwater collector 1, and rainwater collector 1 is used for collecting the rainwater, and it can as long as can satisfy the rainwater and collect. Preferably, rainwater flows into pipeline 8 through filtering earlier from rainwater collector 1 at house top back, reaches two three-way valves 2 after the pressure regulating of device in pipeline 8 again, reduces the impurity in the rainwater and increases the pressure that the rainwater flows in pipeline 8. The mounting height of the two-position three-way valve 2 is higher than that of the water storage tank 3, so that the two-position three-way valve 2 can supply water into the water storage tank 3. When the water pressure in the water storage tank 3 is greater than the pressure of the two-position three-way valve 2, the two-position three-way valve 2 is vertically arranged, and the water pressure in the water storage tank 3 can be ensured to reversely force the two-position three-way valve 2. The reservoir 3 is installed in a toilet or other place as long as it is suitable for supplying water to the toilet bowl 5. The bottom of the two-position three-way valve 2 is communicated with the water storage tank 3 and the next user 7 in an opening and closing mode respectively, the water storage tank 3 is communicated with the closestool 5, and the water storage tank 3 provides a water source for the closestool. Two three-way valves 2 also communicate with next user 7, can be with the rainwater that gathers more during flowing into next user 7, the water economy resource improves the rate of utilization. The water storage tank 3 is communicated with the straight-through overflow valve 4, when the water pressure in the water storage tank 3 reaches a certain degree, the water pressure in the water storage tank 3 forces the straight-through overflow valve 4, and the straight-through overflow valve 4 can limit tap water in the tap water device 6 from providing water for the closestool 5.

In the using process, the self characteristic of the two-position three-way valve 2 directly opens the rainwater in the rainwater collector 1 to enter the water storage tank 3, and closes the communication between the rainwater collector 1 and the next user 7; along with the rainwater in the water storage tank is more and more, when water pressure of water storage tank 3 is greater than the pressure of two three-way valve 2 self internal control, water pressure of water storage tank 3 forces two three-way valve 2 directly to close the intercommunication between rainwater collector 1 and the water storage tank 3 to open the intercommunication between rainwater collector 1 and the next user 7, transport the rainwater of collecting to next user, so connect down, and then can satisfy more users. When the water pressure in the water storage tank 3 is higher than the water pressure of the tap water device 6, the water pressure of the water storage tank 3 forces the straight-through overflow valve 4 to close the communication between the tap water device 6 and the closestool 5, thereby limiting the water supply of the tap water device 6; when the water pressure set value in the water storage tank 3 is smaller than the water pressure of the tap water device 6, the water pressure of the tap water device 6 forces the straight-through overflow valve 4 to open the communication between the tap water device 6 and the closestool 5, and then the tap water device 6 is used for supplying water to provide water for the closestool.

Two three-way valves 2 include valve body 21 and lower valve body 22, go up valve body 21 bottom periphery and can dismantle sealing connection between the valve body 22 top periphery down, wherein can be through bolted connection, easy to assemble, and the junction can increase the sealing member that plays sealed effect between last valve body 21 bottom and lower valve body 22 top. The upper valve body 21 is communicated with the rainwater collector 1, and rainwater in the rainwater collector 1 flows into the upper valve body 21 of the two-position three-way valve 2 through the pipeline 8. The lower valve body 22 is transversely provided with a valve inlet channel 221 and a valve control channel 222, the position of the valve inlet channel 221 is higher than that of the valve control channel 222, wherein the valve inlet channel 221 is connected with one pipe 8 of the water storage tank 3 for water circulation, and the valve control channel 222 is connected with the other pipe 8 of the water storage tank 3. Rainwater in the rainwater collector 1 enters the upper valve body 21 and enters the water storage tank 3 through the valve input flow channel 221 of the lower valve body 22, and the valve control flow channel 222 and the water storage tank 3 are in a closed and non-communicated state; when the water level in the water storage tank 3 rises and the water pressure increases, water enters the valve control flow passage 222 connected with the water storage tank 3, the two-position three-way valve 2 is controlled to close the communication between the valve input flow passage 221 of the upper valve body 21 and the water storage tank 3, and rainwater in the upper valve body 21 enters the next user 7.

Specifically, the two-position three-way valve 2 further comprises a valve core 23 and a spring 24, a main flow passage 211 is vertically formed in the inner side of the upper valve body 21, the main flow passage 211 is communicated with the rainwater collector 1, rainwater in the rainwater collector 1 enters the main flow passage 211 of the upper valve body 21 from the pipeline 8, an upper sliding flow passage 212 is formed in the middle of the inner side of the upper valve body 21, the main flow passage 211 is communicated with the upper sliding flow passage 212, a sub flow passage 223 is vertically formed in the inner side of the lower valve body 22, a lower sliding flow passage 224 is formed in the middle of the inner side of the lower valve body 22, the upper sliding flow passage 212 and the lower sliding flow passage 224 are located on the same vertical straight line and are communicated with each other, the sub flow passage 223 is communicated with the lower sliding flow passage 224, and the sub flow passage 223 is communicated with the next user 7. Two ends of the spring 24 are respectively fixedly connected with the top wall of the upper sliding flow channel 212 and the top end of the valve core 23, the valve core 23 is connected in the upper sliding flow channel 212 and the lower sliding flow channel 224 in a sliding manner through the spring 24, the valve core 23 is driven by the spring 24 to control rainwater in the rainwater collector 1 to enter the water storage tank 3 from the main flow channel 211, and the bottom of the water pressure driving valve core 23 of the water storage tank 3 controls rainwater in the rainwater collector 1 to flow into the branch flow channel 223 from the main flow channel 211 to enter the next user 7. The spring 24 is in a compressed state in the initial state, the spring 24 controls the valve core 23 to be pressed down, the valve core 23 connects the main flow passage 211 with the valve input flow passage 221, and rainwater flows to the water storage tank 3. When the water level in the water tank 3 increases, the water pressure in the valve control flow passage 222 increases continuously and is finally higher than the pressure of the spring 24, the valve core 23 is communicated with the main flow passage 211 and the sub flow passage 223 upwards, and rainwater is discharged to the sub flow passage 223 and enters the next user 7.

Specifically, the inner side wall of the bottom of the lower sliding flow channel 224 is fixedly connected with a limiting ring 2241. Initially, after the valve core 23 is acted by the spring 24, the bottom of the valve core 23 abuts against the limiting ring 2241, and the limiting ring 2241 plays a limiting role, so that the valve core 23 is prevented from deviating from the track after being stressed, and meanwhile, the valve core 23 can be controlled to close the communication between the main flow passage 211 and the valve control flow passage 222.

Specifically, a first blocking block 231, a second blocking block 232 and a third blocking block 233 are fixedly arranged on the periphery of the valve element 23 from top to bottom in sequence, the main flow passage 211 is communicated with the branch flow passage 223 in an openable and closable manner through the side surface of the first blocking block 231, the main flow passage 211 is communicated with the valve input flow passage 221 in an openable and closable manner through the side surface of the second blocking block 232, and the main flow passage 211 is communicated with the valve control flow passage 222 in a closed manner through the third blocking block 233. When the spring 24 drives the valve element 23 to move downwards, the side surface of the first blocking block 231 just seals the communication between the main flow passage 211 and the branch flow passage 223, and the side surface of the second blocking block 232 opens the communication between the main flow passage 211 and the valve input flow passage 221, so that rainwater enters the water storage tank 3; the bottom of the third block 233 seals the communication between the main flow passage 211 and the valve control flow passage 222. When the water pressure in the valve control flow passage 222 is higher than the pressure of the spring 24, the water pressure pushes the third blocking piece 233, so that the valve core 23 moves upward, the first blocking piece 231 side opens the communication between the main flow passage 211 and the branch flow passage 223, and the second blocking piece 232 side seals the communication between the main flow passage 211 and the valve input flow passage 221, so that rainwater enters the next user 7.

Two three-way valves 2 include and connect ring 25 and lower ring 26 on, go up and connect the interior grafting of ring 25 upper end and have been used for the pipeline 8 of rainwater circulation, connect the interior grafting of ring 26 lower extreme and have been used for the pipeline 8 of rainwater circulation down, link together two pipelines 8, play the connection. The lower end of the upper connecting ring 25 is in threaded fit with the lower part of the upper valve body 21, and the upper end of the lower connecting ring 26 is in threaded fit with the upper part of the lower valve body 22, so that when the upper connecting ring 25 and/or the lower connecting ring 26 are/is rotated, the vertical length of the two-position three-way valve 2 can be integrally changed. Preferably, the outer periphery of the lower part of the upper valve body 21 is provided with an external thread, and the inner side wall of the upper connecting ring 25 is provided with an internal thread; the periphery of the upper part of the lower valve body 22 is provided with an external thread, and the inner side wall of the lower connecting ring 26 is provided with an internal thread.

Specifically, the upper positioning ring 9 is annularly arranged and fixed on the lower portion of the upper valve body 21, the upper positioning ring 9 plays a limiting role, the upper connecting ring 25 is prevented from being separated from the threaded connection position, and the installation is convenient. The lower positioning ring 10 is annularly arranged and fixed on the upper part of the lower valve body 22, and the lower positioning ring 10 plays a limiting role, so that the lower connecting ring 26 is prevented from being separated from the threaded connection position, and the installation is convenient.

The straight-through overflow valve 4 comprises an overflow valve body 41 and an overflow valve core 42, wherein a vertically arranged overflow control flow passage 411 is formed in the overflow valve body 41, an overflow input flow passage 412 and an overflow output flow passage 413 are transversely formed in the overflow valve body 41, the overflow control flow passage 411 is communicated with the water storage tank 3, the overflow valve core 42 can be connected into the overflow control flow passage 411 in a vertically sliding manner, the overflow control flow passage 411 can be communicated with the overflow input flow passage 412 and the overflow output flow passage 413 in an opening and closing manner through the overflow valve core 42, the overflow input flow passage 412 is communicated with the tap water device 6, and the overflow output flow passage 413 is communicated with the toilet bowl 5. In order to control the water pressure of the tap water and ensure the flow of the tap water, the overflow valve core 42 of the straight-through overflow valve 4 may have cross sections with different proportions.

When the water pressure in the water storage tank 3 reaches the requirement, the water pressure of the water storage tank 3 drives the overflow valve core 42 to close the communication between the overflow input channel 412 and the overflow output channel 413, so as to limit the water supply of the tap water device 6, and the water storage tank 3 preferentially supplies water to the closestool 5. When the water pressure in the water storage tank 3 does not meet the requirement, the through-type overflow valve 4 opens the communication between the tap water device 6 and the overflow input flow passage 412, so that the tap water is communicated with the closestool 5 through the overflow input flow passage 412 and the overflow output flow passage 413, wherein the through-type overflow valve 4 does not limit the input of the tap water, and the tap water directly supplies water to the closestool 5.

Specifically, a limiting flow passage 4111 is disposed in the middle of the overflow control flow passage 411, and the limiting flow passage 4111 is disposed coaxially with the overflow control flow passage 411 and has a diameter larger than that of the overflow control flow passage 411. The limiting flow passage 4111 is used to limit the movement of the upper portion of the overflow valve core 42, when the water pressure of the water tank 3 drives the upper portion of the overflow valve core 42 to move downward, the bottom of the limiting flow passage 4111 limits the upper portion of the overflow valve core 42 to move further downward, and simultaneously, the communication between the overflow input flow passage 412 and the overflow output flow passage 413 is also closed. When the water pressure of the water storage tank 3 is smaller than the set value, the water pressure in the tap water device 6 drives the upper part of the overflow valve core 42 to move upwards, the top of the limiting flow passage 4111 limits the upper part of the overflow valve core 42 to move upwards, and meanwhile, the communication between the overflow input flow passage 412 and the overflow output flow passage 413 is also opened.

The tap water device 6 comprises a tap water pipe 61, a pressure reducing valve 62 and a one-way valve 63, wherein the tap water pipe 61 is communicated with the straight-through overflow valve 4 in an openable and closable manner. A check valve 63 and a pressure reducing valve 62 are sequentially arranged at one end of the tap water pipe 61 away from the through-flow type relief valve 4. The check valve 63 is used for controlling the flow direction of water in the tap water pipe 61, and preventing rainwater from entering the tap water pipe 61 to pollute tap water after the straight-through overflow valve 4 is damaged. The pressure reducing valve 62 is used to adjust the water pressure of the water in the water pipe 61 to meet the water pressure demand of the user.

If the rainwater recycling device can supply pressure of 0.14MPa according to the pipe network tip specified by the state; according to the national standard and the social commitment of the industry, the pressure of the 61 net of the tap water pipe reaches 0.14Mpa, namely the product is qualified. In practice, in order to ensure the accuracy of the rainwater recycling device, the installation height of the water storage tank 3 should be as high as possible, such as 2.5 m. The pressure in the water supply device 6 via the pressure reducing valve 62 was set to 0.05 MPa. For example, the cross-sectional ratio of the straight-through relief valve is about 1: 2.

With reference to the above specific values, the working process is as follows: (a) when raining, rainwater flows into the pipeline 8 from the rainwater collector 1 on the roof through the filtering device or the pressure regulating treatment, and reaches the two-position three-way valve 2 after being subjected to pressure regulation by the device in the pipeline 8; (b) the two-position three-way valve 2 presses the valve core 23 downwards under the control of the spring 24, at the moment, the valve core 23 is communicated with the main flow passage 211 and the valve input flow passage 221, and rainwater flows to the water storage tank 3; (c) the water pressure in the valve control flow passage 222 is continuously increased and is finally higher than the pressure of the spring 24, the valve core 23 is upwards communicated with the main flow passage 211 and the branch flow passage 223, and at the moment, rainwater is discharged downwards (the next user 7); (d) when a user uses the closestool 5 to flush water, the water storage tank 3 is connected with the overflow valve core 42 of the straight-through overflow valve 4, and the straight-through overflow valve 4 limits the input of tap water; when the water pressure generated in the reservoir 3 is greater than 0.025Mpa (when the reservoir is set to 2.5 m), the reservoir 3 will preferentially supply water to the toilet bowl 5; when the water pressure generated in the water storage tank 3 is less than 0.025Mpa, the straight-through overflow valve 4 does not limit the input of tap water, and the tap water directly supplies water for the closestool 5.

The invention provides a rainwater recycling system, which is simple in structure, easy to implement and capable of effectively saving water resources.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rainwater reuse system for collecting rainwater at the top of a user's house and reusing it inside the user's house, characterized in that: the rainwater collecting device comprises a rainwater collector (1), a two-position three-way valve (2), a water storage tank (3), a straight-through overflow valve (4), a closestool (5), a tap water device (6) and a plurality of users (7), wherein the rainwater collector (1) is arranged at the top of a house, the rainwater collector (1) is communicated with the water storage tank (3) through the two-position three-way valve (2) which is vertically arranged, the two-position three-way valve (2) is higher than the water storage tank (3), the water storage tank (3) is arranged in the house of the users, the upper part of the two-position three-way valve (2) is communicated with the rainwater collector (1) and controls rainwater in the rainwater collector (1) to flow into the water storage tank (3), the bottom of the two-position three-way valve (2) is communicated with the water storage tank (3) in an openable manner and communicated with the next user (7) in an openable manner, the water storage tank (3) is respectively communicated with the straight-through overflow valve (4) and the closestool (5), and the tap water device (6) is communicated with the closestool (5) in an openable and closable manner through the straight-through overflow valve (4);

the two-position three-way valve (2) comprises an upper valve body (21) and a lower valve body (22), the upper valve body (21) is communicated with the rainwater collector (1), a valve input flow channel (221) and a valve control flow channel (222) are transversely formed in the lower valve body (22), the position of the valve input flow channel (221) is higher than that of the valve control flow channel (222) and is arranged opposite to the valve control flow channel (222), the two-position three-way valve (2) is respectively communicated with the water storage tank (3) in an openable and closable manner through the valve input flow channel (221) and the valve control flow channel (222), and the lower part of the lower valve body (22) is communicated with the next user (7);

the two-position three-way valve (2) comprises a valve core (23) and a spring (24), a main runner (211) is vertically arranged on the inner side of the upper valve body (21), the main runner (211) is communicated with the rainwater collector (1), an upper sliding runner (212) is arranged in the middle of the inner side of the upper valve body (21), the main runner (211) is communicated with the upper sliding runner (212), a sub-runner (223) is vertically arranged on the inner side of the lower valve body (22), a lower sliding runner (224) is arranged in the middle of the inner side of the lower valve body (22), the upper sliding runner (212) and the lower sliding runner (224) are positioned on the same vertical straight line and are communicated with each other, the sub-runner (223) is communicated with the lower sliding runner (224), the sub-runner (223) is communicated with a next user (7), and two ends of the spring (24) are respectively fixedly connected with the top wall of the upper sliding runner (212) and the top end of the valve core (23), the valve core (23) is connected in the upper sliding flow passage (212) and the lower sliding flow passage (224) in a sliding way through the spring (24);

the straight-through overflow valve (4) comprises an overflow valve body (41) and an overflow valve core (42), wherein a vertically arranged overflow control flow channel (411) is formed in the overflow valve body (41), the overflow valve core (42) can be connected into the overflow control flow channel (411) in an up-and-down sliding manner, the overflow control flow channel (411) is communicated with the water storage tank (3), an overflow input flow channel (412) and an overflow output flow channel (413) are transversely formed in the overflow valve body (41), the overflow input flow channel (412) is communicated with the tap water device (6), the overflow output flow channel (413) is communicated with the closestool (5), and the overflow control flow channel (411) can be communicated with the overflow input flow channel (412) and the overflow output flow channel (413) in an opening and closing manner through the overflow valve core (42);

when the water pressure of the water storage tank (3) is greater than the pressure of the two-position three-way valve (2), the water pressure of the water storage tank (3) forces the two-position three-way valve (2) to close the communication between the rainwater collector (1) and the water storage tank (3) and open the communication between the rainwater collector (1) and the next user (7);

when the water pressure in the water storage tank (3) is higher than the water pressure of the tap water device (6), the water pressure of the water storage tank (3) forces the straight-through overflow valve (4) to close the communication between the tap water device (6) and the closestool (5);

when the water pressure in the water storage tank (3) is smaller than the water pressure of the tap water device (6), the water pressure of the tap water device (6) forces the straight-through overflow valve (4) to open the communication between the tap water device (6) and the closestool (5).

2. A rainwater reuse system according to claim 1, wherein: the upper valve body (21) and the lower valve body (22) are detachably and fixedly connected.

3. A rainwater reuse system according to claim 2, wherein: the spring (24) drives the valve core (23) to control rainwater in the rainwater collector (1) to enter the water storage tank (3) from the main flow passage (211), and the pressure of the water storage tank (3) drives the bottom of the valve core (23) to control rainwater in the rainwater collector (1) to flow into the branch flow passage (223) from the main flow passage (211) to enter the next user (7).

4. A rainwater reuse system according to claim 3, wherein: and a limiting ring (2241) is fixedly arranged on the inner side wall of the bottom of the lower sliding flow passage (224), and the bottom of the valve core (23) is in releasable support with the limiting ring (2241).

5. A rainwater reuse system according to claim 3, wherein: the valve is characterized in that a first blocking block (231), a second blocking block (232) and a third blocking block (233) are sequentially and fixedly arranged on the periphery of the valve core (23) from top to bottom, the main flow channel (211) is communicated with the sub-flow channel (223) in an opening and closing mode through the side face of the first blocking block (231), the main flow channel (211) is communicated with the valve input flow channel (221) in an opening and closing mode through the side face of the second blocking block (232), and the main flow channel (211) is communicated with the valve control flow channel (222) through the third blocking block (233) in a closed mode.

6. A rainwater reuse system according to claim 2, wherein: two three-way valves (2) including connect ring (25) and lower ring (26), it has pipeline (8) that are used for the rainwater circulation to connect in the ring (25) upper end interpolation, connect down and connect pipe (8) that are used for the rainwater circulation in the ring (26) lower extreme interpolation, go up connect ring (25) lower extreme threaded connection in go up valve body (21) lower part, connect down ring (26) upper end threaded connection in valve body (22) upper portion down.

7. A rainwater reuse system according to claim 6, characterized in that: the lower portion of the upper valve body (21) is annularly provided with and fixed to an upper positioning ring (9), and the upper portion of the lower valve body (22) is annularly provided with and fixed to a lower positioning ring (10).

8. A rainwater reuse system according to claim 1, wherein: the middle of the overflow control flow channel (411) is provided with a limiting flow channel (4111) which is concentric with the overflow control flow channel (411), the diameter of the limiting flow channel (4111) is larger than that of the overflow control flow channel (411), the upper part of the valve core (23) can move up and down to abut against the top wall or the bottom wall of the limiting flow channel (4111), the overflow output flow channel (413) is communicated with the limiting flow channel (4111), and the overflow input flow channel (412) is positioned at the bottom of the limiting flow channel (4111).

9. A rainwater reuse system according to any of claims 1 to 7, wherein: the tap water device (6) comprises a tap water pipe (61), a pressure reducing valve (62) and a one-way valve (63), the tap water pipe (61) is communicated with an external water source, the tap water pipe (61) is communicated with the through overflow valve (4) in an opening and closing mode, and the one end, away from the through overflow valve (4), of the tap water pipe (61) is sequentially provided with the one-way valve (63) used for controlling the one-way flow of tap water and the pressure reducing valve (62) used for adjusting the water pressure of tap water.