阅读说明：本技术 一种具有防堵功能的雨水回收装置 (Rainwater recovery device with anti-blocking function ) 是由 李明建 陈松 沈耀忠 于 2021-07-29 设计创作，主要内容包括：本发明公开了一种具有防堵功能的雨水回收装置,壳体内开设有工作腔,圆筒固设于工作腔顶部,圆筒内开设有第一过滤腔,第一过滤模块固设于第一过滤腔内,圆筒下方固设有过滤箱,过滤箱内开设有第二过滤腔,且第一过滤腔通过第一输送管道与第二过滤腔连通,第二过滤模块固设于第二过滤腔内,第一过滤模块通过控制模块与第二过滤模块连接,过滤箱的一侧固设有收集箱,收集箱通过第二输送管道与第二过滤腔连通,且收集箱通过第三输送管道与第一过滤腔连通。通过第一过滤模块初步过滤掉雨水中的大颗粒杂质,再由第二过滤模块过滤掉雨水中的细小颗粒,使雨水达到回收利用的标准,实用性较强。(The invention discloses a rainwater recovery device with an anti-blocking function, wherein a working cavity is formed in a shell, a cylinder is fixedly arranged at the top of the working cavity, a first filter cavity is formed in the cylinder, a first filter module is fixedly arranged in the first filter cavity, a filter box is fixedly arranged below the cylinder, a second filter cavity is formed in the filter box, the first filter cavity is communicated with the second filter cavity through a first conveying pipeline, the second filter module is fixedly arranged in the second filter cavity, the first filter module is connected with the second filter module through a control module, a collecting box is fixedly arranged on one side of the filter box, the collecting box is communicated with the second filter cavity through a second conveying pipeline, and the collecting box is communicated with the first filter cavity through a third conveying pipeline. The large particle impurity of tentatively filtering through first filtration module in the rainwater filters the tiny granule of rainwater by the second filtration module again, makes the rainwater reach recycle's standard, and the practicality is stronger.)

1. The utility model provides a rainwater recovery unit with prevent stifled function which characterized in that: comprises a shell (1), a cylinder (2), a filter box (3), a collecting box (4), a water storage cavity (5), a first filter module (6), a second filter module (7), a control module (8), a first conveying pipeline (9), a second conveying pipeline (10), a third conveying pipeline (11) and a fourth conveying pipeline (12), wherein a working cavity (13) is formed in the shell (1), the cylinder (2) is fixedly arranged at the top of the working cavity (13), a first filter cavity (14) is formed in the cylinder (2), the first filter module (6) is fixedly arranged in the first filter cavity (14), the filter box (3) is fixedly arranged below the cylinder (2), a second filter cavity (15) is formed in the filter box (3), the first filter cavity (14) is communicated with the second filter cavity (15) through the first conveying pipeline (9), and the second filter module (7) is fixedly arranged in the second filter cavity (15), first filtering module (6) are connected with second filtering module (7) through control module (8), one side of rose box (3) has set firmly collecting box (4), collecting box (4) are through second pipeline (10) and second rose cavity (15) intercommunication, and collecting box (4) are through third pipeline (11) and first rose cavity (14) intercommunication, storage water tank (5) set firmly in working chamber (13) bottom, storage water tank (5) are through fourth pipeline (12) and second rose cavity (15) intercommunication.

2. A rainwater recovery device with an anti-blocking function according to claim 1, wherein: the first filtering module (6) comprises a roller (601), a filter screen (602), partition plates (603), a driving motor (604), a first one-way valve (606) and a liquid injection module (607), the roller (601) is rotatably arranged in the first filtering cavity (14), the driving motor (604) is fixedly arranged on the side wall of the shell (1), the power output end of the driving motor (604) is fixedly connected with the roller (601), more than two partition plates (603) are circumferentially and uniformly fixedly arranged on the side wall of the roller (601), a first through hole (608) communicated with the first filtering cavity (14) is formed in the bottom of the cylinder (2), the filter screen (602) is fixedly arranged in the first through hole (608), the first conveying pipeline (9) is communicated with the first through hole (608), a second through hole (609) is formed in one side of the cylinder (2), the third conveying pipeline (11) is communicated with the second through hole (609), a cleaning cavity (605) is formed in the roller (601), the liquid injection module (607) is fixedly arranged in the cleaning cavity (605), a liquid adding hole (610) communicated with the cleaning cavity (605) is further formed in one end, close to the driving motor (604), of the roller (601), the first one-way valve (606) is fixedly arranged in the liquid adding hole (610), and a water inlet hole (611) is further formed in the top of the cylinder (2).

3. A rainwater recovery device with an anti-blocking function according to claim 2, characterized in that: the liquid injection module (607) comprises a push plate (6071), a threaded shaft (6072), a second one-way valve (6073), a ratchet gear (6074), a first rotating gear (6075), a pawl (6076), a pressing handle (6077), a first compression spring (6078), an L-shaped rod (60711), a rotating rod (60712) and a second compression spring (60713), a liquid discharge hole (6079) communicated with the cleaning cavity (605) is formed in the side face of the roller (601), the second one-way valve (6073) is fixedly arranged in the liquid discharge hole (6079), the push plate (6071) is slidably arranged in the cleaning cavity (605), one end of the threaded shaft (6072) is in threaded connection with the push plate (6071), the other end of the threaded shaft (6072) extends into the working cavity (13) to be fixedly connected with the ratchet gear (6074), a pressing groove (60710) communicated with the working cavity (13) is formed in the top of the shell (1), and the pressing handle (6077) is connected with the pressing groove (60710) through the first compression spring (6078), the bottom of pressing handle (6077) extends to in working chamber (13) and meshes with first rotation gear (6075), first rotation gear (6075) rotate and set up in working chamber (13) lateral wall, pawl (6076) set firmly in the side of first rotation gear (6075), L shape pole (60711) rotate through bull stick (60712) and set up in working chamber (13) lateral wall, the one end and ratchet gear (6074) joint of L shape pole (60711), and L shape pole (60711) are connected with working chamber (13) roof through second compression spring (60713).

4. A rainwater recovery device with an anti-blocking function according to claim 3, characterized in that: the second filtering module (7) comprises a conical filtering plate (701), mud scraping plates (702), a first rotating shaft (703), a first driving wheel (704), a second driving wheel (705), a sewage discharge pipeline (706), a first belt (707), a turbofan (708), a first bevel gear (709), a second bevel gear (710), a supporting plate (711), a second rotating shaft (712) and a third rotating shaft (713), the conical filtering plate (701) is fixedly arranged on the side wall of the second filtering cavity (15), the first rotating shaft (703) is rotatably arranged on the top wall of the second filtering cavity (15), more than two mud scraping plates (702) are uniformly and fixedly arranged on the side wall of the first rotating shaft (703) in the circumferential direction, the other end of the first rotating shaft (703) extends to the upper part of the filtering box (3) and is fixedly connected with the first driving wheel (704), third through holes (714) communicated with the second filtering cavity (15) are formed in the lower part of the filtering box (3), a transmission cavity (715) is formed in the third through hole (714), the turbofan (708) is rotatably arranged in the transmission cavity (715), one end of the second rotating shaft (712) is fixedly connected with the turbofan (708), the other end of the second rotating shaft (712) extends to one side of the filter box (3) and is fixedly connected with the first bevel gear (709), the support plate (711) is fixedly arranged at one side of the filter box (3), the third rotating shaft (713) is rotatably arranged on the support plate (711), the second bevel gear (710) is fixedly arranged at the bottom end of the third rotating shaft (713), the second bevel gear (710) is meshed with the first bevel gear (709), the second driving wheel (705) is fixedly arranged at the top of the third rotating shaft (713), the second driving wheel (705) is connected with the first driving wheel (704) through the first belt (707), one end of the sewage discharge pipeline (706) is fixedly arranged at the bottom of the conical filter plate (701), and the other end of the sewage pipeline (706) is fixedly arranged in the third through hole (714), an automatic door opening module (16) is also arranged in the second filter cavity (15).

5. A rainwater recovery device with an anti-blocking function according to claim 4, characterized in that: the control module (8) comprises a third driving wheel (801), a fourth driving wheel (802), a second belt (803), a fourth rotating shaft (804), a rotating block (805) and a T-shaped rod (806), the third driving wheel (801) is fixedly arranged at the free end of the second rotating shaft (712), the fourth driving wheel (802) is rotatably arranged on the side wall of the working cavity (13) through the fourth rotating shaft (804), the fourth driving wheel (802) is connected with the third driving wheel (801) through the second belt (803), the rotating block (805) is fixedly arranged on the fourth rotating shaft (804), the rotating block (805) is located under the L-shaped rod (60711), a limiting groove (807) is formed in the side face of the rotating block (805), and the T-shaped rod (806) is slidably arranged in the limiting groove (807).

6. A rainwater recovery device with an anti-blocking function according to claim 4, characterized in that: the automatic door opening module (16) comprises a floating plate (161), a connecting block (162), a connecting rod (163), a wedge-shaped block (164), a main push rod (165), an auxiliary push rod (166), a third compression spring (167) and a door plate (168), the floating plate (161) is sleeved on the first rotating shaft (703), the connecting block (162) is hinged to the floating plate (161) through the connecting rod (163), a first sliding groove (169) is formed in one side of the second filter cavity (15), the wedge-shaped block (164) is arranged in the first sliding groove (169) in a sliding mode, one end of the wedge-shaped block (164) extends into the second filter cavity (15) and is fixedly connected with the connecting block (162), a second sliding groove (1610) is formed in the side wall of the third through hole (714), the door plate (168) is arranged in the second sliding groove (1610) in a sliding mode, and the door plate (168) is connected with the side wall of the second sliding groove (1610) through the third compression spring (167), the first sliding groove (169) is communicated with the third through hole (714) through the fourth through hole (1611), the main push rod (165) is arranged at one end of the fourth through hole (1611) in a sliding mode, the main push rod (165) extends into the first sliding groove (169) and is abutted to the inclined surface of the wedge block (164), the auxiliary push rod (166) is arranged at the other end of the fourth through hole (1611) in a sliding mode, and the auxiliary push rod (166) extends into the third through hole (714) and is abutted to the door panel (168).

Technical Field

The invention relates to the technical field of municipal construction, in particular to a rainwater recovery device with an anti-blocking function.

Background

With the continuous development of social economy, the requirements of people on living environment are higher and higher, so that the municipal engineering construction is more and more popularized. In order to increase urban greening, a certain amount of greening plants, such as flowers, plants, trees and the like, are usually planted on two sides of a traffic road, and are watered regularly to ensure the healthy growth of the greening plants, so that a large amount of water resources are consumed in the process. In order to save water, the rainwater can be collected to be used as greening spraying and greening irrigation water, but solid impurities such as sludge and branches can be brought into the rainwater collection device by the rainwater to wash the ground, so that the rainwater collection device is blocked, and the rainwater recovery is further influenced.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to solve the technical problem of providing the rainwater recovery device with the anti-blocking function, large-particle impurities in rainwater are preliminarily filtered by the first filtering module, and fine particles in the rainwater are filtered by the second filtering module, so that the rainwater reaches the standard of recycling, and the rainwater recovery device is high in practicability.

In order to achieve the purpose, the invention adopts the following technical scheme: a rainwater recovery device with an anti-blocking function comprises a shell, a cylinder, a filter box, a collecting box, a water storage cavity, a first filter module, a second filter module, a control module, a first conveying pipeline, a second conveying pipeline, a third conveying pipeline and a fourth conveying pipeline, wherein a working cavity is formed in the shell, the cylinder is fixedly arranged at the top of the working cavity, a first filter cavity is formed in the cylinder, the first filter module is fixedly arranged in the first filter cavity, the filter box is fixedly arranged below the cylinder, a second filter cavity is formed in the filter box, the first filter cavity is communicated with the second filter cavity through the first conveying pipeline, the second filter module is fixedly arranged in the second filter cavity, the first filter module is connected with the second filter module through the control module, the collecting box is fixedly arranged on one side of the filter box, the collecting box is communicated with the second filter cavity through the second conveying pipeline, and is communicated with the first filter cavity through the third conveying pipeline, the water storage tank is fixedly arranged at the bottom of the working cavity and is communicated with the second filter cavity through a fourth conveying pipeline.

In a preferred technical scheme of the invention, the first filtering module comprises a roller, a filter screen, a partition plate, a driving motor, a first one-way valve and a liquid injection module, the roller is rotatably arranged in the first filtering cavity, the driving motor is fixedly arranged on the side wall of the shell, the power output end of the driving motor is fixedly connected with the roller, more than two partition plates are uniformly and circumferentially fixedly arranged on the side wall of the roller, a first through hole communicated with the first filtering cavity is formed at the bottom of the cylinder, the filter screen is fixedly arranged in the first through hole, the first conveying pipeline is communicated with the first through hole, a second through hole is formed at one side of the cylinder, the third conveying pipeline is communicated with the second through hole, a cleaning cavity is formed in the roller, the liquid injection module is fixedly arranged in the cleaning cavity, a liquid injection hole communicated with the cleaning cavity is further formed at one end of the roller close to the driving motor, and the first one-way valve is fixedly arranged in the liquid injection hole, the top of the cylinder is also provided with a water inlet hole.

In a preferred technical scheme of the invention, the liquid injection module comprises a push plate, a threaded shaft, a second one-way valve, a ratchet gear, a first rotating gear, a pawl, a pressing handle, a first compression spring, an L-shaped rod, a rotating rod and a second compression spring, a liquid discharge hole communicated with the cleaning cavity is formed in the side surface of the roller, the second one-way valve is fixedly arranged in the liquid discharge hole, the push plate is slidably arranged in the cleaning cavity, one end of the threaded shaft is in threaded connection with the push plate, the other end of the threaded shaft extends into the working cavity and is fixedly connected with the ratchet gear, a pressing groove communicated with the working cavity is formed in the top of the shell, the pressing handle is connected with the bottom wall of the pressing groove through the first compression spring, the bottom end of the pressing handle extends into the working cavity and is meshed with the first rotating gear, the first rotating gear is rotatably arranged on the side wall of the working cavity, and the pawl is fixedly arranged on the side surface of the first rotating gear, the L-shaped rod is rotatably arranged on the side wall of the working cavity through the rotating rod, one end of the L-shaped rod is clamped with the ratchet gear, and the L-shaped rod is connected with the top wall of the working cavity through a second compression spring.

In a preferred technical scheme of the invention, the second filtering module comprises a conical filtering plate, a mud scraping plate, a first rotating shaft, a first driving wheel, a second driving wheel, a sewage discharge pipeline, a first belt, a turbofan, a first bevel gear, a supporting plate, a second rotating shaft and a third rotating shaft, the conical filtering plate is fixedly arranged on the side wall of the second filtering cavity, the first rotating shaft is rotatably arranged on the top wall of the second filtering cavity, more than two mud scraping plates are uniformly and circumferentially arranged on the side wall of the first rotating shaft, the other end of the first rotating shaft extends to the upper part of the filtering box and is fixedly connected with the first driving wheel, a third through hole communicated with the second filtering cavity is arranged below the filtering box, a transmission cavity is arranged in the third through hole, the second filtering cavity is communicated with the transmission cavity through the third through hole, the turbofan is rotatably arranged in the transmission cavity, one end of the second rotating shaft is fixedly connected with the turbofan, the other end of the second rotating shaft extends to one side of the filtering box and is fixedly connected with the first bevel gear, the backup pad sets firmly in one side of rose box, and the third pivot rotates and sets up in the backup pad, and second bevel gear sets firmly in the bottom of third pivot, and second bevel gear and first bevel gear meshing, and the second drive wheel sets firmly in the top of third pivot, and the second drive wheel is connected with first drive wheel through first belt, and the one end of sewage pipes sets firmly in toper filter plate bottom, and the other end of sewage pipes sets firmly in the third through hole, still is provided with the automatic module of opening the door in the second filter chamber.

In a preferred technical scheme of the invention, the control module comprises a third transmission wheel, a fourth transmission wheel, a second belt, a fourth rotating shaft, a rotating block and a T-shaped rod, the third transmission wheel is fixedly arranged at the free end of the second rotating shaft, the fourth transmission wheel is rotatably arranged on the side wall of the working cavity through the fourth rotating shaft, the fourth transmission wheel is connected with the third transmission wheel through the second belt, the rotating block is fixedly arranged on the fourth rotating shaft and is positioned right below the L-shaped rod, a limit groove is formed in the side surface of the rotating block, and the T-shaped rod is slidably arranged in the limit groove.

In a preferred technical scheme of the invention, the automatic door opening module comprises a floating plate, a connecting block, a connecting rod, a wedge-shaped block, a main push rod, an auxiliary push rod, a third compression spring and a door plate, wherein the floating plate is sleeved on the first rotating shaft, the connecting block is hinged with the floating plate through the connecting rod, a first chute is formed in one side of the second filter cavity, the wedge-shaped block is arranged in the first chute in a sliding manner, one end of the wedge-shaped block extends into the second filter cavity and is fixedly connected with the connecting block, a second chute is formed in the side wall of the third through hole, the door plate is arranged in the second chute in a sliding manner, the door plate is connected with the side wall of the second chute through the third compression spring, the first chute is communicated with the third through hole, the main push rod is arranged at one end of the fourth through hole in a sliding manner, the main push rod extends into the first chute and abuts against the inclined surface of the wedge-shaped block, the auxiliary push rod is arranged at the other end of the fourth through hole in a sliding manner, and the auxiliary push rod extends into the third through hole and is abutted with the door panel.

The invention has the beneficial effects that:

1. through setting up the baffle and separating first filter chamber for the part that a plurality of is the same, in operation, driving motor drives the roller and slowly rotates, and the roller rotates and drives the baffle and rotate thereupon, makes the rainwater filter via the filter screen in the first through-hole, and the rainwater after the filtration is discharged into in the rose box by first pipeline, and the baffle rotation can strike off the impurity on filter screen surface simultaneously to carry to the second through-hole and discharge into in the collecting box by the third pipeline, thereby filter the large granule impurity of rainwater, prevent that the filter residue from blockking up the filter screen.

2. In the use process, the roller rotates to drive the push plate to rotate, and then the push plate moves rightwards along the cleaning cavity under the action of the threaded shaft, a flocculating agent is discharged into the second filtering cavity from the liquid discharge hole, impurities in rainwater are condensed into large particles and settled, and the large particles are conveyed into the collecting box by the partition plate, so that the particles are prevented from blocking the filter screen; when the second filter module blocks up, break away from the joint state with L shape pole and ratchet through control module, the threaded shaft breaks away from the constraint this moment, follows the push pedal and rotates to stop to the second filter intracavity injection flocculating agent.

3. Through setting up the toper filter plate for impurity is piled up in toper filter plate middle part under the action of gravity, avoids blockking up the toper filter plate, can improve the life of filter plate, utilizes rivers to promote the turbine simultaneously and rotates, and then the mud on control mud scraping plate striking off toper filter plate surface, has practiced thrift the electric energy.

Drawings

Fig. 1 is a schematic structural diagram of a rainwater recycling device with an anti-blocking function according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged schematic view at B of FIG. 1;

fig. 4 is a cross-sectional view in the direction C-C in fig. 2.

In the figure:

1. a housing; 2. a cylinder; 3. a filter box; 4. a collection box; 5. a water storage tank; 6. a first filtration module; 601. a roller; 602. a filter screen; 603. a partition plate; 604. a drive motor; 605. cleaning the cavity; 606. a first check valve; 607. a liquid injection module; 6071. pushing the plate; 6072. a threaded shaft; 6073. a second one-way valve; 6074. a ratchet gear; 6075. a first rotating gear; 6076. a pawl; 6077. pressing the handle; 6078. a first compression spring; 6079. a drain hole; 60710. pressing the groove; 60711. an L-shaped rod; 60712. a rotating rod; 60713. a second compression spring; 608. a first through hole; 609. a second through hole; 610. a liquid adding hole; 611. a water inlet hole; 7. a second filtration module; 701. a conical filter plate; 702. a mud scraper; 703. a first rotating shaft; 704. a first drive pulley; 705. a second transmission wheel; 706. a blowdown line; 707. a first belt; 708. a turbofan; 709. a first bevel gear; 710. a second bevel gear; 711. a support plate; 712. a second rotating shaft; 713. a third rotating shaft; 714. a third through hole; 715. a transmission cavity; 8. a control module; 801. a third transmission wheel; 802. a fourth transmission wheel; 803. a second belt; 804. a fourth rotating shaft; 805. rotating the block; 806. a T-shaped rod; 807. a limiting groove; 9. a first delivery conduit; 10. a second delivery conduit; 11. a third delivery conduit; 12. a fourth delivery conduit; 13. a working chamber; 14. a first filter chamber; 15. a second filter chamber; 16. an automatic door opening module; 161. a floating plate; 162. connecting blocks; 163. a connecting rod; 164. a wedge block; 165. a main push rod; 166. an auxiliary push rod; 167. a third compression spring; 168. a door panel; 169. a first chute; 1610. a second chute; 1611. and a fourth via.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1-4, an embodiment provides a rainwater recycling device with anti-blocking function, which includes a housing 1, a cylinder 2, a filtering box 3, a collecting box 4, a water storage chamber 5, a first filtering module 6, a second filtering module 7, a control module 8, a first conveying pipeline 9, a second conveying pipeline 10, a third conveying pipeline 11 and a fourth conveying pipeline 12, wherein a working chamber 13 is formed in the housing 1, the cylinder 2 is fixedly arranged on the top of the working chamber 13, a first filtering chamber 14 is formed in the cylinder 2, the first filtering module 6 is fixedly arranged in the first filtering chamber 14, the filtering box 3 is fixedly arranged below the cylinder 2, a second filtering chamber 15 is formed in the filtering box 3, the first filtering chamber 14 is communicated with the second filtering chamber 15 through the first conveying pipeline 9, the second filtering module 7 is fixedly arranged in the second filtering chamber 15, the first filtering module 6 is connected with the second filtering module 7 through the control module 8, one side of rose box 3 sets firmly collecting box 4, and collecting box 4 communicates with second filter chamber 15 through second pipeline 10, and collecting box 4 communicates with first filter chamber 14 through third pipeline 11, and storage water tank 5 sets firmly in working chamber 13 bottom, and storage water tank 5 communicates with second filter chamber 15 through fourth pipeline 12. First filter chamber 14 is cylindrical cavity in this embodiment, in operation, the rainwater gets into in first filter chamber 14 by inlet opening 611, carry out prefilter to the rainwater through first filter module 6, get rid of the large granule impurity in the rainwater, rainwater after the filtration is arranged to rose box 3 in by first pipeline 9, the filter residue is arranged to collecting box 4 in by third pipeline 11 and is collected simultaneously, rainwater through prefilter carries out the secondary filter by second filter module 7 in second filter chamber 15, get rid of the tiny particle impurity in the rainwater, and then make the rainwater reach recycle's mark vertebra, the rainwater up to standard is discharged into storage water tank 5 by fourth pipeline 12 and is stored, the filter residue that the secondary filter obtained then discharges into in collecting box 4 through third pipeline 714 and stores, make things convenient for operating personnel to handle the filter residue, avoid the filter residue to discharge the polluted environment in disorder.

Specifically, the first filtering module 6 includes a roller 601, a filter screen 602, partition plates 603, a driving motor 604, a first check valve 606 and a liquid injection module 607, the roller 601 is rotatably disposed in the first filtering chamber 14, the driving motor 604 is fixedly disposed on the side wall of the housing 1, a power output end of the driving motor 604 is fixedly connected with the roller 601, more than two partition plates 603 are circumferentially and uniformly fixedly disposed on the side wall of the roller 601, a first through hole 608 communicated with the first filtering chamber 14 is disposed at the bottom of the cylinder 2, the filter screen 602 is fixedly disposed in the first through hole 608, a first conveying pipeline 9 is communicated with the first through hole 608, a second through hole 609 is disposed at one side of the cylinder 2, a third conveying pipeline 11 is communicated with the second through hole 609, a cleaning chamber is disposed inside the roller 601, the liquid injection module 607 is fixedly disposed in the cleaning chamber 605, a liquid injection hole 610 communicated with the cleaning chamber 605 is further disposed at one end of the roller 601 near the driving motor 604, the first check valve 606 is fixedly disposed in the liquid feeding hole 610, and the top of the cylinder 2 is further provided with a water inlet 611. The first filtering cavity 14 is divided into a plurality of parts with the same size through the partition boards 603, when the rainwater treatment device works, the driving motor 604 drives the rollers 601 to rotate, the rollers 601 rotate to drive the partition boards 603 to rotate, then the partition boards 603 drive rainwater to rotate in the first filtering cavity 14, when the rainwater rotates to the position right below the rollers 601, the rainwater is primarily filtered by the filter screen 602 in the first through hole 608, large-particle impurities in the rainwater are removed, meanwhile, the rollers 601 rotate to drive the liquid injection module 607 to inject a flocculating agent into the first filtering cavity 14, so that the impurities in the rainwater are condensed into large particles and settled, and the sewage treatment efficiency is further improved; after the filtration is completed, the roller 601 rotates to drive the partition plate 603 to scrape off the filter residue on the surface of the filter screen 602 and the filter residue obtained by sedimentation and convey the filter residue to the second through hole 609, and the filter residue is discharged into the collection box 4 by the third conveying pipeline 11 to be collected, so that the filter screen 602 is prevented from being blocked by the filter residue, and the filtration efficiency is prevented from being affected.

Specifically, the liquid injection module 607 includes a push plate 6071, a threaded shaft 6072, a second check valve 6073, a ratchet gear 6074, a first rotation gear 6075, a pawl 6076, a pressing handle 6077, a first compression spring 6078, an L-shaped rod 60711, a rotation rod 60712 and a second compression spring 60713, a liquid discharge hole 6079 communicating with the cleaning chamber 605 is formed in a side surface of the roller 601, the second check valve 6073 is fixedly disposed in the liquid discharge hole 6079, the push plate 6071 is slidably disposed in the cleaning chamber 605, one end of the threaded shaft 6072 is in threaded connection with the push plate 6071, the other end of the threaded shaft 6072 extends into the working chamber 13 to be fixedly connected with the ratchet gear 6074, a pressing groove 60710 communicating with the working chamber 13 is formed in a top portion of the housing 1, the pressing handle 6077 is connected with a bottom wall of the pressing groove 60710 through the first compression spring 6078, a bottom end of the pressing handle 6077 extends into the working chamber 13 to be engaged with the first rotation gear 6075, the first rotation gear 6075 is rotatably disposed on a side wall of the working chamber 13, the pawl 6076 is fixedly arranged on the side surface of the first rotating gear 6075, the L-shaped rod 60711 is rotatably arranged on the side wall of the working cavity (13) through the rotating rod 60712, one end of the L-shaped rod 60711 is clamped with the ratchet gear 6074, and the L-shaped rod 60711 is connected with the top wall of the working cavity 13 through the second compression spring 60713. In the initial state, the L-shaped rod 60711 is abutted to the tooth socket of the ratchet gear 6074 under the action of the second compression spring 60712 to clamp the ratchet gear 6074, during operation, the roller 601 rotates to drive the push plate 6071 to rotate synchronously, because the ratchet gear 6074 is clamped and cannot rotate along with the roller 601, under the action of the threaded shaft 6072, the push plate 6071 moves rightwards along the cleaning cavity 605, the push plate 6071 moves rightwards to press the cleaning cavity 605 and open the liquid discharge hole 6079 against the pressure of the second one-way valve 6073, so that the flocculant is discharged into the first filter cavity 14 from the liquid discharge hole 6079, after the flocculant in the cleaning cavity 605 is used up, an external flocculant box is connected to the liquid adding hole 610, at the moment, the handle 6078 is pressed downwards to move downwards, the handle 6078 is pressed downwards to drive the first rotation gear 6075 to rotate, the first rotation gear 6075 drives the ratchet gear 6074 to rotate through the pawl 6076, and the ratchet gear 6074 drives the threaded shaft 6072 to rotate, and then the push plate 6071 moves leftwards, so that the flocculating agent in the external flocculating agent box is sucked into the cleaning cavity 605 to complete the liquid adding process.

Specifically, the second filter module 7 includes a conical filter plate 701, a mud scraper 702, a first rotating shaft 703, a first driving wheel 704, a second driving wheel 705, a sewage pipe 706, a first belt 707, a turbofan 708, a first bevel gear 709, a second bevel gear 710, a support plate 711, a second rotating shaft 712 and a third rotating shaft 713, the conical filter plate 701 is fixedly disposed on a side wall of the second filter cavity 15, the first rotating shaft 703 is rotatably disposed on a top wall of the second filter cavity 15, more than two mud scrapers 702 are circumferentially and uniformly disposed on a side wall of the first rotating shaft 703, the other end of the first rotating shaft 703 extends to a position above the filter box 3 and is fixedly connected with the first driving wheel 704, a third through hole 714 communicated with the second filter cavity 15 is disposed below the filter box 3, a transmission cavity 715 is disposed in the third through hole 714, the turbofan 708 is rotatably disposed in the transmission cavity 715, one end of the second rotating shaft 712 is fixedly connected with the turbofan 708, the other end of the second rotating shaft 712 extends to a side of the filter box 3 and is fixedly connected with the first bevel gear 709, the supporting plate 711 is fixedly arranged at one side of the filter tank 3, the third rotating shaft 713 is rotatably arranged on the supporting plate 711, the second bevel gear 710 is fixedly arranged at the bottom end of the third rotating shaft 713, the second bevel gear 710 is meshed with the first bevel gear 709, the second driving wheel 705 is fixedly arranged at the top of the third rotating shaft 713, the second driving wheel 705 is connected with the first driving wheel 704 through the first belt 707, one end of the sewage pipe 706 is fixedly arranged at the bottom of the tapered filter plate 701, the other end of the sewage pipe 706 is fixedly arranged in the third through hole 714, and the automatic door opening module 16 is further arranged in the second filter cavity 15. After entering the second filter cavity 15, the primarily filtered rainwater is filtered for the second time under the action of the conical filter plate 701, small particle impurities in the rainwater slide along the inclined plane of the conical filter plate 701 under the action of gravity and fall to the center of the conical filter plate 701 to be accumulated, when the conical filter screen 701 is blocked, the water level in the second filter chamber 15 rises, so that the automatic door opening module 16 is opened, at the moment, the rainwater is discharged out of the second filter chamber 15 through the third through hole 714, and in the rainwater discharging process, the turbofan 708 is driven to rotate, the turbofan 708 drives the first bevel gear 709 to rotate through the second rotating shaft 712, the first bevel gear 709 drives the second driving wheel 705 to rotate through the third rotating shaft 713, the second driving wheel 705 drives the first driving wheel 704 to rotate through the first belt 707, the first driving wheel 704 drives the mud scraping plate 702 to rotate through the first rotating shaft 703, mud on the surface of the conical filter plate 701 is scraped, and the mud falls into the third through hole 714 and is discharged out of the second filter cavity 15 along with water flow.

Specifically, the control module 8 includes a third driving wheel 801, a fourth driving wheel 802, a second belt 803, a fourth rotating shaft 804, a rotating block 805 and a T-shaped rod 806, the third driving wheel 801 is fixed at a free end of the second rotating shaft 712, the fourth driving wheel 802 is rotatably disposed on a side wall of the working chamber 13 through the fourth rotating shaft 804, the fourth driving wheel 802 is connected with the third driving wheel 801 through the second belt 803, the rotating block 805 is fixed on the fourth rotating shaft 804, the rotating block 805 is located right below the L-shaped rod 60711, a limit groove 807 is formed in a side surface of the rotating block 805, and the T-shaped rod 806 is slidably disposed in the limit groove 807. Turbofan 708 rotates and drives third drive wheel 801 through second pivot 712 and rotates, third drive wheel 801 drives fourth drive wheel 802 through second belt 803 and rotates, fourth drive wheel 802 rotates and drives fourth pivot 804 and rotate, fourth pivot 804 rotates and drives commentaries on classics piece 805 and rotates, make T shape pole 806 outwards slide along spacing groove 807 under the effect of centrifugal force, make T shape pole 806 stir L shape pole 60711, and then the L shape pole 60711 that makes breaks away from the contact with ratchet 6074, thereby make ratchet 6074 and threaded rod 6072 can follow roller 601 and rotate, push pedal 6071 stops sliding right this moment, no longer extrude the flocculating agent to first filter chamber 14 in.

Specifically, the automatic door opening module 16 includes a floating plate 161, a connecting block 162, a connecting rod 163, a wedge block 164, a main push rod 165, an auxiliary push rod 166, a third compression spring 167 and a door plate 168, the floating plate 161 is sleeved on the first rotating shaft 703, the connecting block 162 is hinged to the floating plate 161 through the connecting rod 163, one side of the second filter cavity 15 is provided with a first sliding slot 169, the wedge block 164 is slidably disposed in the first sliding slot 169, one end of the wedge block 164 extends into the second filter cavity 15 and is fixedly connected to the connecting block 162, a side wall of the third through hole 714 is provided with a second sliding slot 1610, the door plate 168 is slidably disposed in the second sliding slot 1610, the door plate 168 is connected to a side wall of the second sliding slot 1610 through the third compression spring 167, the first sliding slot 169 is communicated with the third through hole 714 through a fourth through hole 1611, the main push rod 165 is slidably disposed at one end of the fourth through hole 1611, and the main push rod 165 extends into the first sliding slot 169 and abuts against the wedge block 164, the sub push rod 166 is slidably disposed at the other end of the fourth through hole 1611, and the sub push rod 166 extends into the third through hole 714 and abuts against the door panel 168. When the water level in the second filter cavity 15 rises, the floating plate 161 slides upwards along the first rotating shaft 703, the floating plate 161 moves upwards to push the connecting block 162 to move leftwards through the connecting rod 163, the connecting block 162 moves leftwards to drive the wedge block 164 to slide along the first sliding groove 169, the wedge block 169 slides to press the main push rod 165, so that the main push rod 165 slides along the fourth through hole 1611, the main push rod 165 drives the auxiliary push rod 166 to press the door plate 168, the door plate 168 slides into the second sliding groove 1610 to press the third compression spring 167, the third through hole 714 is opened, so that the filter residue can be discharged into the collecting box 4 through the third through hole 714, and the filter residue is prevented from being accumulated above the conical filter screen 701 to cause the blockage of the filter screen.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.