A rainwater recycling device with filtering function

Abstract

The present invention discloses a rainwater recycling device with filtering function, which relates to the field of rainwater collection and filtration, including a water storage container and a rainwater collecting mechanism installed above the water storage container, the rainwater collecting mechanism is used to collect rainwater and introduce it into the water storage container for storage, a diversion and filtering device capable of filtering the collected rainwater is arranged between the water storage container and the rainwater collecting mechanism, a collection unit and a rainwater collecting control unit are arranged in the rainwater collecting mechanism, wherein the collection unit is used to collect rainwater depth data in the rainwater collecting mechanism, and a protection control module controls and adjusts the rainwater receiving area of ​​the rainwater collecting mechanism according to the rainwater depth data collected by the collection module. The present invention is suitable for rainwater recycling and filtration, and the filtering structure in the device includes two kinds of internal and external dredging structures, which can autonomously perform targeted dredging work according to the actual filter cartridge filtration blockage situation, and the dredging efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of rainwater recycling and filtration, and in particular to a rainwater recycling device with a filtering function. Background Art

[0002] As is known, rainwater is a freshwater resource that can be recycled. Currently, there are few rainwater recycling devices, and their overall structure is relatively simple. For example, the authorization announcement number is CN105879489B, the authorization announcement date is 2017.12.01, and the name is a rainwater recycling device, which includes: a filter, which includes: a first shell, a top of which is provided with a rainwater inlet, and a bottom of which is provided with a waste residue outlet and a first filtrate outlet; a first filter screen; a liquid separator, which is arranged in the upper part of the first filter screen; a plurality of connecting rods, which are arranged at intervals along the circumferential direction of the top and / or bottom of the liquid separator; a flocculation tank, which includes: a second shell, a top of which is provided with a first filtrate inlet, a first opening and a second opening, a lower part is provided with a flocculation body outlet, and a second filtrate outlet is provided at the bottom; a second filter screen; a first baffle, on which a sedimentation liquid outlet is provided; a second baffle, on which a limiting hole is provided; a rotating shaft; a cylinder; a push plate, which is mounted on the second filter screen;

[0003] As mentioned in the above application, in most cases, the initial structure of the rainwater recycling device is a water storage device and a simple filtering device. Although these devices are basically equipped with filtering structures, because the rainwater is exposed to the outside world, impurities, wastes, etc. can easily fall into them. Although these filtering structures can filter them out, they are very easy to cause blockage. In the filtering structures of these current devices, there is a lack of structures that can clear blockages automatically, so regular manual cleaning is required, which is labor-intensive and time-consuming, and affects the rainwater collection effect. Summary of the invention

[0004] 1. Purpose of the invention

[0005] In view of this, the purpose of the present invention is to propose a rainwater recovery device with a filtering function, which can control the rainwater collecting mechanism to transform to a retracted state through a control module, thereby reducing the rainwater receiving area. This can slow down the speed of rainwater collection and avoid the rainwater collecting mechanism from being damaged by excessive pressure. It can also autonomously perform targeted dredging work according to the actual filter cartridge filtration blockage situation, with high dredging efficiency.

[0006] (II) Technical solution

[0007] In order to achieve the above technical objectives, the present invention provides a rainwater recovery device with a filtering function, which includes a water storage container and a rainwater collecting mechanism installed above the water storage container, the rainwater collecting mechanism is used to collect rainwater and introduce it into the water storage container for storage, a diversion and filtering device is arranged between the water storage container and the rainwater collecting mechanism, the diversion and filtering device can autonomously filter and clear the collected rainwater, and a collection unit and a rainwater collecting control unit are arranged in the rainwater collecting mechanism, wherein the collection unit is used to collect rainwater depth data in the rainwater collecting mechanism, and the protection control module controls and adjusts the rainwater receiving area of ​​the rainwater collecting mechanism according to the rainwater depth data collected by the collection module.

[0008] As a further description of the above technical solution: the rain collecting mechanism includes a middle column installed at the center position above the diversion and filtering device through a bracket and a plurality of keels radially installed above the diversion and filtering device, wherein a rain cloth is laid and connected between two adjacent keels so that the keels and the rain cloth form an inverted funnel-shaped rain collecting area, the bottom of the rain cloth is softly connected to the diversion and filtering device, the middle column and the keel are connected by a support rod, and the middle column adopts a hollow tubular structure.

[0009] As a further description of the above technical solution: the acquisition unit includes a float and a displacement sensor, a vertical plate is installed on one side of the middle column in the vertical direction, an assembly groove is opened on the outer wall of the vertical plate in the vertical direction, a slider is slidably installed in the assembly groove, wherein the displacement sensor is installed in the slider to sense the vertical moving height of the slider, and the float is connected to the slider;

[0010] The rain collecting control unit comprises a side groove and a slide, wherein a plurality of side grooves are provided in a circular array and are provided on the outer wall of the middle column in the vertical direction, the slide is slidably mounted in the middle column, a lead screw is installed in the middle column in the vertical direction, a lead screw nut adapted thereto is installed on the screw sleeve, the lead screw nut is embedded in the slide, so that when the lead screw rotates, the slide can be driven to slide in the middle column in the vertical direction under the cooperation of the lead screw nut, a motor for controlling the rotation of the lead screw is installed in the middle column, and when the slide moves in the vertical direction, the keel can be driven to rotate and adjust the angle through the support or traction of the support rod;

[0011] The rain-collecting mechanism has two forms under the action of external restraining force, one is an expanded state in which all keels are radially opened to all sides, and the other is a folded state in which all keels are in a vertical position. When the rain-collecting mechanism is switched between the two states, the rainwater receiving area changes. The closer it is to the expanded state, the larger the rainwater receiving area is, and vice versa, the closer it is to the folded state, the smaller the rainwater receiving area is.

[0012] As a further description of the above technical solution: the collection unit includes a float and a displacement sensor, a vertical plate is installed on one side of the middle column in the vertical direction, an assembly groove is opened on the outer wall of the vertical plate in the vertical direction, a slider is slidably installed in the assembly groove, wherein the displacement sensor is installed in the slider to sense the vertical moving height of the slider, and the float is connected to the slider.

[0013] As a further description of the above technical solution: the flow guide and filtration device includes a flow guide body and a filter cartridge, wherein a flow guide channel running through the flow guide body from top to bottom is opened in the middle of the flow guide body, the filter cartridge is clamped in the flow guide channel, the filter cartridge adopts a funnel-shaped structure, and the inner and outer walls of the filter cartridge are respectively installed with cleaning mechanisms capable of cleaning and unblocking the filter cartridge.

[0014] As a further description of the above technical solution: the cleaning mechanism includes an internal dredging component and an external dredging component, wherein the internal dredging component is arranged inside the filter cartridge, the internal dredging component is composed of a main shaft rotatably installed at the center of the inside of the filter cartridge and a cleaning brush connected to the main shaft through a connecting rod, the cleaning brush is in contact with the inner wall of the filter cartridge, a motor for driving the main shaft to rotate is installed at the bottom of the filter cartridge, the external dredging component is arranged outside the filter cartridge, the external dredging component includes a spray rack installed in contact with the outer wall of the filter cartridge and a dredging pump installed in a water storage container for supplying water to the spray rack, a driving component capable of controlling the rotation of the spray rack is installed on the filter cartridge, a diversion pipe is installed on the spray rack, and the bottom of the diversion pipe is connected to the pump pipe of the dredging pump through a hose.

[0015] As a further description of the above technical solution: the driving assembly includes a swivel frame and a driving gear, wherein the swivel frame is rotatably sleeved on the outside of the filter cylinder through a bearing structure, and a gear ring structure is circumferentially arranged on the outer wall of the swivel frame, and the driving gear is rotatably installed above the filter cylinder through a mounting plate, and is meshed and connected with the gear ring structure outside the swivel frame.

[0016] As a further description of the above technical solution: the inner wall of the diversion channel is provided with a dredging control unit for controlling the external dredging component to perform fixed-point dredging, the dredging control unit includes a pressure sensor and a control module, and the pressure sensors are provided in a total of m, distributed in a ring array on the inner wall of the diversion channel, and are used to obtain pressure values ​​of m areas outside the filter cartridge;

[0017] The control module calculates the water pressure difference at different positions of the filter cartridge based on the pressure values ​​of the m area positions outside the filter cartridge, compares the water pressure difference with the preset water pressure difference, and determines whether to generate a dredging instruction in combination with the float height sensed by the displacement sensor. The dredging instruction includes a comprehensive dredging instruction and a fixed-point dredging instruction. If a comprehensive dredging instruction is generated, the external dredging component is controlled to perform a comprehensive dredging treatment on the filter cartridge. If a fixed-point dredging instruction is generated, the external dredging component is controlled to perform a fixed-point dredging treatment on the blocked area of ​​the filter cartridge.

[0018] As a further description of the above technical solution: the water pressure difference calculation formula is: K=Pmax-Pmin, where K is the water pressure difference, Pmax is the maximum pressure value sensed by the m pressure sensors, and Pmin is the minimum pressure value sensed by the m pressure sensors;

[0019] The method for determining whether to generate a dredging instruction is as follows:

[0020] Set the float displacement distance sensed by the displacement sensor to H, then H≥0, set the water pressure difference threshold to KY, where KY>0, set H=0, the filter cartridge is in a completely unblocked state, and the sensing value of the pressure sensor is PN;

[0021] If H=0, no dredging instruction is generated;

[0022] If H>0, and K=Pmax=Pmin=0, a comprehensive dredging instruction is generated, and the control module controls the external dredging component to perform comprehensive dredging on the filter cartridge.

[0023] If H>0, and K=0, Pmax=Pmin≠0, and Pmax≥PN, no dredging instruction is generated;

[0024] If H>0, and K=0, Pmax=Pmin≠0, and Pmax<PN, a comprehensive dredging instruction is generated, and the control module controls the external dredging component to perform comprehensive dredging on the filter cartridge;

[0025] If H>0, and K≥KY, a fixed-point dredging instruction is generated, and the control module controls the external dredging component to perform fixed-point dredging processing on the filter cartridge corresponding to the area of ​​the pressure sensor sensing the pressure value Pmin;

[0026] If H>0, and 0<K<KY, it is determined that no unblocking instruction is generated.

[0027] As a further description of the above technical solution: it also includes an impedance mechanism, which is used to stabilize the rain collecting mechanism when it is in the unfolded state, and the impedance mechanism includes a containing shell and an impedance cable, wherein the containing shell is installed on the top of the middle column, the impedance cables are the same in number as the keels and correspond one to one, one end of the impedance cable is connected to the containing shell, and the other end is connected to the top of the keel;

[0028] Wherein, a retracting and extending component for controlling the synchronous retracting and extending of all impedance cables is installed in the containing shell.

[0029] As a further description of the above technical solution: the retractable assembly includes two symmetrically distributed mounting plates, a plurality of winding shafts are installed in a circular array between the two mounting plates, the plurality of winding shafts correspond to each impedance cable one by one, one end of the impedance cable is connected to the corresponding winding shaft, a driven wheel is installed at the bottom of each winding shaft, a driving wheel is rotatably installed in the middle of one of the mounting plates, the driven wheel and the driving wheel are gears and meshingly connected, and a motor that can drive the driving wheel to rotate is installed on the mounting plate.

[0030] In the above technical scheme, the present invention provides a rainwater recycling device with a filtering function, which is used for collecting rainwater for secondary utilization, wherein the rainwater collecting mechanism in the device has two forms under the action of external restraining force, one is an expanded state in which all keels are radially opened to the surroundings, and the other is a retracted state in which all keels are in a vertical position, and the rainwater collecting mechanism can be controlled to switch between the two states. During the conversion between the two states, the rainwater receiving area will change, which can not only realize the retraction and release of the device, but also when there is too much rainwater stored in the rainwater collecting mechanism, the control module controls the rainwater collecting mechanism to switch to the retracted state to reduce the rainwater receiving area, which can slow down the speed of rainwater collection, avoid the rainwater collecting mechanism from being damaged by excessive pressure, and realize the protection of the rainwater collecting mechanism;

[0031] The device has a structure capable of filtering rainwater, which ensures that the rainwater does not need to be filtered again when used subsequently. The filtering structure in the device includes two internal and external dredging structures, which can independently perform targeted dredging work according to the actual filter cartridge filtration blockage situation. The dredging efficiency is high, and the fixed-point dredging is more energy-efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1 A schematic diagram of the overall structure of a rainwater recycling device with filtering function provided by the present invention; Figure 2 A schematic structural diagram of a rainwater recycling device with filtering function provided by the present invention from another perspective; Figure 3 A schematic diagram of the structure of an impedance mechanism in a rainwater recycling device with filtering function provided by the present invention; Figure 4 A schematic diagram of a rainwater collection mechanism in a rainwater recycling device with filtering function provided by the present invention; Figure 5 A schematic diagram of the installation structure of a float in a rainwater recycling device with filtering function provided by the present invention; Figure 6 A schematic structural diagram of a flow guide and filtering device in a rainwater recycling device with filtering function provided by the present invention; Figure 7 A schematic diagram of the internal structure of a water storage container in a rainwater recycling device with filtering function provided by the present invention; Figure 8 A schematic diagram of the connection structure of a slag collecting container with a suction pump in a rainwater recycling device with a filtering function provided by the present invention; Fig. 9 A schematic diagram of the installation structure of a pressure sensor in a rainwater recycling device with filtering function provided by the present invention;

[0034] Fig.10 A schematic diagram of the structure of internal and external dredging components in a rainwater recycling device with filtering function provided by the present invention.

[0035] Description of the drawings: 1. water storage container; 10. reuse water pipe joint; 11. overflow drainage pipe joint; 12. reuse water pump; 2. rain collecting mechanism; 20. rain cloth; 21. keel; 22. support rod; 23. middle column; 230. lead screw nut; 231. side groove; 232. lead screw; 233. slide; 234. vertical plate; 234a. assembly groove; 234b. slider; 24. float; 3. impedance mechanism; 30. housing; 31. mounting plate; 32. guide wheel; 33. Around the shaft; 34, impedance cable; 35, driving wheel; 36, driven wheel; 4, diversion and filtering device; 40, diversion body; 400, installation port; 401, diversion channel; 402, pressure sensor; 41, filter cartridge; 410, swivel frame; 411, driving gear; 42, internal dredging component; 43, external dredging component; 430, dredging pump; 431, diverter pipe; 432, nozzle; 433, spray rack; 5, slag collecting container with suction pump; 51, slag extraction pipe; 52, base with valve. DETAILED DESCRIPTION

[0036] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, and use. It should be understood that in all of these figures, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may be exaggerated to illustrate the relevant details or structures of the embodiments of the present disclosure.

[0037] Example 1

[0038] See also Figure 1-5 As shown, this embodiment provides a technical solution: a rainwater recycling device with a filtering function, comprising a water storage container 1 and a rainwater collecting mechanism 2 installed above the water storage container 1, the rainwater collecting mechanism 2 is used to collect rainwater and introduce it into the water storage container 1 for storage, a diversion and filtering device 4 is arranged between the water storage container 1 and the rainwater collecting mechanism 2, the diversion and filtering device 4 can autonomously filter and clear the collected rainwater, and a collection unit and a rainwater collecting control unit are arranged in the rainwater collecting mechanism 2, wherein the collection unit is used to collect rainwater depth data in the rainwater collecting mechanism 2, and the protection control module controls and adjusts the rainwater receiving area of ​​the rainwater collecting mechanism 2 according to the rainwater depth data collected by the collection module, thereby realizing the effect of automatically controlling the rain receiving rate and protecting the rainwater collecting mechanism.

[0039] Specifically, the rain collecting mechanism 2 includes a middle column 23 installed at the center position above the diversion and filtering device 4 through a bracket and a plurality of keels 21 radially installed above the diversion and filtering device 4, wherein a rain cloth 20 is laid and connected between two adjacent keels 21, so that the keels 21 and the rain cloth 20 form an inverted funnel-shaped rain collecting area, the lower part of the rain cloth 20 is softly connected to the diversion and filtering device 4, the middle column 23 is connected to the keel 21 by a support rod 22, and the middle column 23 adopts a hollow tubular structure.

[0040] Furthermore, the collection unit includes a float 24 and a displacement sensor. A vertical plate 234 is installed on one side of the middle column 23 in the vertical direction. An assembly groove 234a is provided on the outer wall of the vertical plate 234 in the vertical direction. A slider 234b is slidably installed in the assembly groove 234a. The displacement sensor is installed in the slider 234b to sense the vertical moving height of the slider 234b. The float 24 is connected to the slider 234b.

[0041] Specifically, the rain collecting control unit includes a side groove 231 and a slide 233, wherein a plurality of side grooves 231 are provided in a circular array and are provided on the outer wall of the middle column 23 in the vertical direction, the slide 233 is slidably assembled in the middle column 23, a screw rod 232 is installed in the middle column 23 in the vertical direction, a screw nut 230 adapted thereto is installed on the screw rod 232, the screw nut 230 is embedded in the slide 233, so that when the screw rod 232 rotates, the slide 233 can be driven to slide in the middle column 23 in the vertical direction under the cooperation of the screw nut 230, a motor for controlling the rotation of the screw rod 232 is installed in the middle column 23, and when the slide 233 moves in the vertical direction, the keel 21 can be driven to rotate and adjust the angle through the support or traction of the support rod 22;

[0042] The rain-collecting mechanism 2 has two forms under the action of external restraining force, one is an expanded state in which all keels 21 are radially opened to all sides, and the other is a folded state in which all keels 21 are in a vertical position. When the rain-collecting mechanism 2 switches between the two states, the rainwater receiving area changes. The closer it is to the expanded state, the larger the rainwater receiving area is. Conversely, the closer it is to the folded state, the smaller the rainwater receiving area is.

[0043] It should be noted that: the displacement sensor can sense the moving distance of the slider 234b, that is, the moving distance of the float 24. When the moving distance of the float 24 is 0, it means that the water level of the rainwater storage in the rain collecting mechanism 2 is below the initial position of the float 24. When the moving distance of the float 24 is greater than 0, the smaller the moving distance, the less rainwater storage in the rain collecting mechanism 2, and vice versa. Taking into account the bearing capacity of the rain collecting mechanism 2, when the rainwater storage in the rain collecting mechanism 2 is too much, the rain collecting control unit controls the rain collecting mechanism 2 to change to a retracted state, reducing the rainwater receiving area, which can slow down the speed of rainwater collection and avoid the rain collecting mechanism 2 being damaged by excessive pressure, thereby achieving the effect of protecting the rain collecting mechanism 2.

[0044] Example 2

[0045] See also Figure 6-10 As shown, this embodiment provides a technical solution: on the basis of embodiment 1, the flow guide and filtering device 4 includes a flow guide body 40 and a filter cartridge 41, wherein a flow guide channel 401 penetrating from top to bottom is provided in the middle of the flow guide body 40, and a mounting opening 400 for matching the bottom of the support rod 22 is provided at the edge of the flow guide body 40, and the filter cartridge 41 is clamped in the flow guide channel 401. The filter cartridge 41 adopts a funnel-shaped structure, and the inner and outer walls of the filter cartridge 41 are respectively installed with cleaning mechanisms capable of cleaning and unblocking the filter cartridge 41.

[0046] Specifically, the cleaning mechanism includes an inner dredging component 42 and an outer dredging component 43, wherein the inner dredging component 42 is arranged inside the filter cartridge 41, and the inner dredging component 42 is composed of a main shaft rotatably mounted at the center of the inner part of the filter cartridge 41 and a cleaning brush connected to the main shaft through a connecting rod. Furthermore, a plurality of cleaning brushes are provided, and the plurality of cleaning brushes are distributed in a ring array, and the cleaning brushes are in contact with the inner wall of the filter cartridge 41. A motor for driving the main shaft to rotate is installed at the bottom of the filter cartridge 41. Because the inner wall of the filter cartridge 41 is often blocked, especially in the open air, debris often enters the filter cartridge 41, and therefore, the inner dredging component 42 is set to operate periodically;

[0047] The external dredging component 43 is arranged on the outside of the filter cartridge 41, and the external dredging component 43 includes a spray rack 433 installed in contact with the outer wall of the filter cartridge 41 and a dredging pump 430 installed in the water storage container 1 for supplying water to the spray rack 433. A plurality of nozzles 432 are equidistantly installed on the inner side of the spray rack 433. A driving component capable of controlling the rotation of the spray rack 433 is installed on the filter cartridge 41. A diverter pipe 431 is installed on the spray rack 433. The bottom of the diverter pipe 431 is connected to the pump pipe of the dredging pump 430 through a hose. The nozzle 432 on the spray rack 433 can spray water under the action of the dredging pump 430 to back-spray the outer surface of the filter cartridge 41, so that the blockages attached to the filter holes are quickly flushed out, thereby achieving efficient clearing.

[0048] Specifically, the driving assembly includes a swivel frame 410 and a driving gear 411. The swivel frame 410 is rotatably sleeved on the outside of the filter cartridge 41 through a bearing structure. A gear ring structure is circumferentially arranged on the outer wall of the swivel frame 410. The driving gear 411 is rotatably installed on the top of the filter cartridge 41 through a mounting plate, and is meshed with the gear ring structure on the outside of the swivel frame 410. A slag collecting container 5 with a suction pump is installed on one side of the water storage container 1. A valved base 52 is installed at the bottom of the filter cartridge 41. The valved base 52 is connected to the slag collecting container 5 with a suction pump through a slag extraction pipe 51. A return water pipe joint 10 is installed at the lower side of the water storage container 1. The return water pipe joint 10 is used to connect an external return water pipe. A return water pump 12 capable of supplying water to the return water pipe joint 10 is installed inside the water storage container 1. An overflow drainage pipe joint 11 is installed above the water storage container 1 for draining water through overflow when there is too much water inside the water storage container 1.

[0049] Example 3

[0050] See also Figure 9-10 As shown, this embodiment provides a technical solution: on the basis of embodiment 2, a dredging control unit for controlling the external dredging component 43 to perform fixed-point dredging is provided on the inner wall of the guide channel 401, and the dredging control unit includes a pressure sensor 402 and a control module. A total of m pressure sensors 402 are provided, which are distributed in a ring array on the inner wall of the guide channel 401, and are used to obtain pressure values ​​of m areas outside the filter cartridge 41;

[0051] The control module calculates the water pressure difference at different positions of the filter cartridge 41 based on the pressure values ​​of the m area positions outside the filter cartridge 41, compares the water pressure difference with the preset water pressure difference, and determines whether to generate a dredging instruction in combination with the height of the float 24 sensed by the displacement sensor. The dredging instruction includes a comprehensive dredging instruction and a fixed-point dredging instruction. If a comprehensive dredging instruction is generated, the external dredging component 43 is controlled to perform a comprehensive dredging treatment on the filter cartridge 41. If a fixed-point dredging instruction is generated, the external dredging component 43 is controlled to perform a fixed-point dredging treatment on the blocked area of ​​the filter cartridge 41.

[0052] Further, the water pressure difference calculation formula is: K=Pmax-Pmin, where K is the water pressure difference, Pmax is the maximum pressure value sensed by the m pressure sensors 402, and Pmin is the minimum pressure value sensed by the m pressure sensors 402;

[0053] The method for determining whether to generate a dredging instruction is as follows:

[0054] The displacement distance of the float 24 sensed by the displacement sensor is set to H, then H≥0, and the water pressure difference threshold is set to KY, where KY>0, and H=0, the filter cartridge 41 is in a completely unblocked state, and the sensing value of the pressure sensor 402 is PN;

[0055] If H=0, no dredging instruction is generated;

[0056] If H>0, and K=Pmax=Pmin=0, a comprehensive dredging instruction is generated, and the control module controls the external dredging component 43 to perform comprehensive dredging on the filter cartridge 41;

[0057] If H>0, and K=0, Pmax=Pmin≠0, and Pmax≥PN, no dredging instruction is generated;

[0058] If H>0, and K=0, Pmax=Pmin≠0, and Pmax<PN, a comprehensive dredging instruction is generated, and the control module controls the external dredging component 43 to perform comprehensive dredging on the filter cartridge 41;

[0059] If H>0, and K≥KY, a fixed-point dredging instruction is generated, and the control module controls the external dredging component 43 to perform fixed-point dredging processing on the filter cartridge 41 corresponding to the area of ​​the pressure sensor 402 that senses the pressure value Pmin;

[0060] If H>0, and 0<K<KY, it is determined that no unblocking instruction is generated.

[0061] It should be noted that: the preset water pressure difference threshold in this embodiment, the technician can take any value in the range greater than 0 as the preset water pressure difference threshold according to the actual situation, and no specific data is limited here. If H=0, it means that the water level of the rainwater storage in the rain collection mechanism 2 is below the initial position of the float 24, which does not affect the use and does not need to be dredged; if H>0, it means that the water level of the rainwater storage in the rain collection mechanism 2 is above the initial position of the float 24. At this time, it is necessary to judge the blockage of the filter cartridge 41 according to the K value. When K=Pmax=Pmin=0, it means that the filter cartridge 41 is blocked. If all the water is blocked and cannot be filtered, the control module will control the external dredging component 43 to perform a comprehensive dredging process on the filter cartridge 41. If K=0, and Pmax=Pmin≠0, and Pmax≥PN, it means that the filter cartridge 41 is not blocked, and no dredging instruction is generated. When K=0, and Pmax=Pmin≠0, and Pmax<PN, it means that the filter cartridge 41 is completely blocked and can be filtered at a low speed. In order to ensure that the water level does not continue to rise, a comprehensive dredging instruction is also generated, and the control module controls the external dredging component 43 to perform a comprehensive dredging process on the filter cartridge 41.

[0062] When K≠0, the greater the water pressure difference, the more serious the blockage of the filter cartridge 41 in the area corresponding to the pressure sensor 402 that senses the pressure value of Pmin. When the water pressure difference exceeds the set threshold, a fixed-point unblocking instruction is generated, and the external unblocking component 43 is controlled to perform fixed-point unblocking processing on the pressure sensor 402 sensing area of ​​the filter cartridge 41. In this embodiment, K=Pmax, Pmax>0 is taken as an example. At this time, Pmin is equal to 0, which means that the filter cartridge 41 in the area corresponding to the pressure sensor 402 that senses the pressure value of 0 is completely blocked. At this time, a unblocking instruction is generated, and the external unblocking component 43 is controlled to perform fixed-point unblocking processing on the pressure sensor 402 sensing area of ​​the filter cartridge 41.

[0063] Example 4

[0064] See also Figure 1-3 As shown, this embodiment provides a technical solution: on the basis of Example 3, in order to ensure the stability of the rain collecting mechanism 2 when it is in the unfolded state, this embodiment also includes an impedance mechanism 3, the impedance mechanism 3 includes a containing shell 30 and an impedance cable 34, the containing shell 30 is installed on the top of the middle column 23, the impedance cables 34 are the same in number as the keels 21 and correspond one to one, one end of the impedance cable 34 is connected to the containing shell 30, and the other end is connected to the top of the keel 21, and a retracting and extending assembly for controlling the synchronous retraction and extension of all impedance cables 34 is installed in the containing shell 30, and the impedance cable 34 cooperates with the support rod 22 to achieve the effect of "one resistance and one pull" on the keel 21, thereby ensuring its resistance and making it strong in wind resistance. Preferably, a guide wheel 32 is provided on the containing shell 30 at the outlet of the impedance cable 34 to reduce the wear caused by the retraction and extension of the impedance cable 34.

[0065] Specifically, the retractable and retractable assembly includes two symmetrically distributed mounting plates 31, and a plurality of winding shafts 33 are installed in a circular array between the two mounting plates 31. The plurality of winding shafts 33 correspond to each impedance cable 34 one by one, and one end of the impedance cable 34 is connected to the corresponding winding shaft 33. A driven wheel 36 is installed at the bottom of each winding shaft 33, and a driving wheel 35 is rotatably installed in the middle of one mounting plate 31. The driven wheel 36 and the driving wheel 35 are gears and meshingly connected. A motor that can drive the driving wheel 35 to rotate is installed on the mounting plate 31. When the motor is running, it drives the driving wheel 35 to rotate. Through the cooperation of the driven wheel 36 and the driving wheel 35, all the winding shafts 33 rotate at the same time, thereby achieving the effect of synchronous retractable and retractable.

[0066] The exemplary implementation scheme of the present disclosure is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present disclosure can be combined in various ways without exceeding the protection scope of the present disclosure, which is determined by the attached claims.

Claims

1. A rainwater recycling device with filtering function, characterized in that: It comprises a water storage container (1) and a rain collecting mechanism (2) installed above the water storage container (1), the rain collecting mechanism (2) being used to collect rainwater and introduce it into the water storage container (1) for storage, a flow guiding and filtering device (4) being provided between the water storage container (1) and the rain collecting mechanism (2), the flow guiding and filtering device (4) being capable of autonomously filtering and clearing the collected rainwater; The rain collecting mechanism (2) is provided with a collection unit and a rain collecting control unit, wherein the collection unit is used to collect rainwater depth data in the rain collecting mechanism (2), and the rain collecting control unit can control and adjust the rainwater receiving area of ​​the rain collecting mechanism (2) according to the rainwater depth data collected by the collection unit, and the rain collecting mechanism (2) comprises a middle column (23) installed at a central position above the diversion and filtering device (4) through a bracket, and a plurality of keels (21) installed radially above the diversion and filtering device (4); The acquisition unit comprises a float (24) and a displacement sensor; a vertical plate (234) is mounted on one side of the middle column (23) in a vertical direction; an outer wall of the vertical plate (234) is provided with an assembly groove (234a) in a vertical direction; a sliding block (234b) is slidably mounted in the assembly groove (234a); the displacement sensor is mounted in the sliding block (234b); and the float (24) is connected to the sliding block (234b); The flow guiding and filtering device (4) comprises a flow guiding body (40) and a filter cartridge (41); a flow guiding channel (401) penetrating from top to bottom is provided in the middle of the flow guiding body (40); the filter cartridge (41) is clamped in the flow guiding channel (401); the inner wall and the outer wall of the filter cartridge (41) are respectively provided with cleaning mechanisms capable of cleaning and dredging the filter cartridge (41); the cleaning mechanisms comprise an inner dredging component (42) arranged inside the filter cartridge (41) and an outer dredging component (43) arranged outside the filter cartridge (41); The inner wall of the flow guide channel (401) is provided with a dredging control unit for controlling the external dredging component (43) to perform fixed-point dredging, the dredging control unit comprising a pressure sensor (402) and a control module, a total of m pressure sensors (402) being arranged and distributed in a ring array on the inner wall of the flow guide channel (401) and being used to obtain pressure values ​​of m areas outside the filter cartridge (41); The control module calculates the water pressure difference at different positions of the filter cartridge (41) based on the pressure values ​​at the positions of the m regions outside the filter cartridge (41), compares the water pressure difference with the preset water pressure difference, and determines whether to generate a dredging instruction in combination with the height of the float (24) sensed by the displacement sensor, wherein the dredging instruction includes a comprehensive dredging instruction and a fixed-point dredging instruction. If a comprehensive dredging instruction is generated, the external dredging component (43) is controlled to perform a comprehensive dredging process on the filter cartridge (41); if a fixed-point dredging instruction is generated, the external dredging component (43) is controlled to perform a fixed-point dredging process on the blocked area of ​​the filter cartridge (41).

2. A rainwater recycling device with filtering function according to claim 1, characterized in that: A rain sheet (20) is laid and connected between two adjacent keels (21), so that the keels (21) and the rain sheet (20) form an inverted funnel-shaped rain collection area, the lower part of the rain sheet (20) is softly connected to the diversion and filtering device (4), the middle column (23) is connected to the keel (21) via a support rod (22), and the middle column (23) adopts a hollow tubular structure.

3. A rainwater recycling device with filtering function according to claim 2, characterized in that: The rain collection control unit comprises: A plurality of side grooves (231) are provided in a ring array and are provided on the outer wall of the middle column (23) in a vertical direction; A slide (233) slidably mounted in the middle column (23); A screw rod (232) is installed inside the middle column (23) in the vertical direction, a screw nut (230) adapted thereto is installed on a rotating sleeve of the screw rod (232), and the screw nut (230) is embedded in the slide (233), so that when the screw rod (232) rotates, the slide (233) can be driven to slide in the middle column (23) in the vertical direction under the cooperation of the screw nut (230), and a motor for controlling the rotation of the screw rod (232) is installed in the middle column (23), and when the slide (233) moves in the vertical direction, the keel (21) can be driven to rotate and adjust the angle through the support or traction of the support rod (22); The rainwater collecting mechanism (2) has two states under the action of an external restraining force, one being an expanded state in which all keels (21) are radially opened to all sides, and the other being a retracted state in which all keels (21) are in a vertical position. When the rainwater collecting mechanism (2) switches between the two states, the rainwater receiving area changes. The closer it is to the expanded state, the larger the rainwater receiving area is. Conversely, the closer it is to the retracted state, the smaller the rainwater receiving area is.

4. The rainwater recycling device with filtering function according to claim 1, characterized in that: The filter cartridge (41) adopts a funnel-shaped structure.

5. The rainwater recycling device with filtering function according to claim 3, characterized in that: The inner dredging assembly (42) is composed of a main shaft rotatably mounted at the center of the filter cartridge (41) and a cleaning brush connected to the main shaft via a connecting rod, the cleaning brush being in contact with the inner wall of the filter cartridge (41), and a motor for driving the main shaft to rotate being mounted at the bottom of the filter cartridge (41); The external dredging component (43) comprises a spray rack (433) mounted in contact with the outer wall of the filter cartridge (41) and a dredging pump (430) mounted in a water storage container (1) for supplying water to the spray rack (433); a driving component capable of controlling the rotation of the spray rack (433) is mounted on the filter cartridge (41); a shunt pipe (431) is mounted on the spray rack (433); and the bottom of the shunt pipe (431) is connected to a pump pipe of the dredging pump (430) via a hose.

6. The rainwater recycling device with filtering function according to claim 5, characterized in that: The driving assembly comprises a rotating ring frame (410) and a driving gear (411), wherein the rotating ring frame (410) is rotatably sleeved on the outside of the filter cartridge (41) via a bearing structure, a gear ring structure is circumferentially arranged on the outer wall of the rotating ring frame (410), and the driving gear (411) is rotatably mounted above the filter cartridge (41) via a mounting plate and is meshedly connected with the gear ring structure on the outside of the rotating ring frame (410).

7. A rainwater recycling device with filtering function according to claim 6, characterized in that: The water pressure difference calculation formula is: K=Pmax-Pmin, where K is the water pressure difference, Pmax is the maximum pressure value sensed by the m pressure sensors (402), and Pmin is the minimum pressure value sensed by the m pressure sensors (402); The method for determining whether to generate a dredging instruction is as follows: The displacement distance of the float (24) sensed by the displacement sensor is set to H, then H≥0, and the water pressure difference threshold is set to KY, wherein KY>0, and H=0, the filter cartridge (41) is in a completely unblocked state, and the sensing value of the pressure sensor (402) is PN; If H=0, no dredging instruction is generated; If H>0, and K=Pmax=Pmin=0, a comprehensive dredging instruction is generated, and the control module controls the external dredging component (43) to perform a comprehensive dredging process on the filter cartridge (41); If H>0, and K=0, Pmax=Pmin≠0, and Pmax≥PN, no dredging instruction is generated; If H>0, and K=0, Pmax=Pmin≠0, and Pmax<PN, a comprehensive dredging instruction is generated, and the control module controls the external dredging component (43) to perform a comprehensive dredging process on the filter cartridge (41); If H>0, and K≥KY, a fixed-point dredging instruction is generated, and the control module controls the external dredging component (43) to perform a fixed-point dredging process on the filter cartridge (41) in the area corresponding to the pressure sensor (402) sensing a pressure value of Pmin; If H>0, and 0<K<KY, it is determined that no unblocking instruction is generated.

8. The rainwater recycling device with filtering function according to claim 2, characterized in that: It also includes an impedance mechanism (3), which is used to stabilize the rain collecting mechanism (2) when it is in the unfolded state, and the impedance mechanism (3) includes: A receiving shell (30) mounted on the top of the middle column (23); Impedance cables (34), the number of which is the same as that of the keels (21) and corresponds one to one, one end of each impedance cable (34) being connected to the containing shell (30) and the other end being connected to the top end of the keel (21); Wherein, a retractable and retractable assembly for controlling the synchronous retraction and retraction of all impedance cables (34) is installed in the accommodating shell (30).

9. The rainwater recycling device with filtering function according to claim 8, characterized in that: The retractable assembly comprises two symmetrically distributed mounting plates (31), a plurality of winding shafts (33) are installed in a circular array between the two mounting plates (31), the plurality of winding shafts (33) correspond to the impedance cables (34) one by one, one end of the impedance cables (34) is connected to the corresponding winding shaft (33), a driven wheel (36) is installed at the bottom of each winding shaft (33), a driving wheel (35) is rotatably installed in the middle of one of the mounting plates (31), the driven wheel (36) and the driving wheel (35) are gears and meshingly connected, and a motor capable of driving the driving wheel (35) to rotate is installed on the mounting plate (31).

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