Drainage device and filter cleaning method

Abstract

The present invention belongs to the technical field of building construction, and discloses a drainage device and a filtering and cleaning method, including a shell, a switching module and a filtering module, wherein a working chamber is arranged inside the shell, and a water inlet, a drainage port and a sewage outlet connected to the working chamber are arranged on the outer wall of the shell, the switching module comprises a switching drive mechanism and a switching plate, and the switching drive mechanism can drive the switching plate to switch between a drainage state and a sewage discharge state, and the filtering module comprises a filtering drive mechanism and a filtering plate, and the filtering plate is located in the working chamber, and the filtering drive mechanism can drive the filtering plate to switch between a filtering state and a cleaning state, and the filtering and cleaning method uses the above drainage device. In the present invention, the switching module and the filtering module cooperate with each other, and by adjusting the states of the switching plate and the filtering plate, the filtering and drainage operation can be stably performed, and the cleaning operation can be performed in time, and the switching time between the filtering and drainage operation and the cleaning operation is short, and the connection is smooth, thereby ensuring the drainage efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a drainage device and a filtering and cleaning method. Background Art

[0002] The sewage generated by construction sites contains a large amount of large particles of mud, gravel and other impurities, which need to be filtered before being discharged. Therefore, the drain valve needs to have a filtering function and be used as a drainage device.

[0003] The existing drainage devices have low efficiency in filtering and draining operations and are easily clogged by impurities in sewage. In addition, the process of cleaning the drainage devices after being clogged is complicated and cumbersome, with poor cleaning effects, long cleaning times, and high maintenance costs. The switching time between filtering and draining operations and cleaning operations is long, and there is no smooth connection, which affects the drainage efficiency. Summary of the invention

[0004] The object of the present invention is to provide a drainage device and a filtering and cleaning method, in which the filtering and drainage operation and the cleaning operation are smoothly connected, thereby ensuring the drainage efficiency.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Drainage device, including:

[0007] A shell, wherein a working chamber is arranged inside the shell, and an outer wall of the shell is provided with a water inlet, a water outlet and a sewage outlet connected to the working chamber;

[0008] A switching module, the switching module comprising a switching drive mechanism and a switching plate, the switching drive mechanism being capable of driving the switching plate to switch between a drainage state and a sewage discharge state, the water inlet being connected to the drainage port when the switching plate is in the drainage state, and the drainage port being closed when the switching plate is in the sewage discharge state;

[0009] A filter module, the filter module comprising a filter drive mechanism and a filter plate, the filter plate being located in the working chamber, the filter drive mechanism being capable of driving the filter plate to switch between a filtering state and a cleaning state, when the filter plate is in the filtering state, the water inlet and the drain port being located on both sides of the filter plate, when the filter plate is in the cleaning state, water flowing in from the water inlet being able to bypass the filter plate and flow to the drain port.

[0010] Preferably, the shell is in an elongated strip shape, the water inlet is located at one end of the shell, the drain outlet is located at the other end of the shell, and the sewage outlet is located on the side wall of the shell.

[0011] Preferably, a partition plate is further included, wherein the partition plate is arranged in the working chamber, the water inlet and the sewage outlet are located on one side of the partition plate, and the sewage outlet is located on the other side of the partition plate. Along the direction away from the sewage outlet, the partition plate gradually extends toward the water inlet, and the partition plate is provided with a water hole. When the switching plate is in the sewage discharge state, the switching plate is attached to the partition plate to close the water hole.

[0012] Preferably, the filter drive mechanism comprises:

[0013] A filter support assembly, wherein the filter plate is connected to the inner wall of the working chamber through the filter support assembly, and the filter support assembly drives the filter plate to stop in the filtering state;

[0014] A filter driver is disposed in the housing, an output end of which is connected to the filter plate, and the filter driver can drive the filter plate to move to the cleaning state.

[0015] Preferably, the filter drive comprises:

[0016] Winding motor;

[0017] A winding roller connected to the output end of the winding motor;

[0018] A winding rope is wound around the winding roller, and one end of the winding rope is connected to the filter plate.

[0019] Preferably, it further comprises a blocking module, wherein the blocking module comprises:

[0020] An arresting seat, the arresting seat being located in the working chamber;

[0021] A blocking rope, one end of which is connected to the blocking seat, and the other end of which is connected to the filter plate. The blocking rope has a retracted state and a blocking state. When the blocking rope is in the retracted state, the blocking seat abuts against the filter plate. When the blocking rope is in the blocking state, the filter plate and the blocking seat are spaced apart, and the blocking rope is tensioned between the filter plate and the blocking seat.

[0022] An elastic return member is configured to drive the barrier rope to stop in the retracted state.

[0023] Preferably, two filter modules are provided, each filter module is equipped with one blocking module, the blocking module includes a limiting magnet, and when the two filter plates are in the cleaning state, the two blocking modules are magnetically connected via the limiting magnet.

[0024] Preferably, a flushing module is further included, the output end of the flushing module is connected to the water inlet, and the flushing module can clean the working chamber through air flow or water flow.

[0025] Preferably, the flushing module comprises:

[0026] A water tank, the inner cavity of which is connected to the water inlet;

[0027] An air pump can drive the stored water in the water tank to flow toward the water inlet by inflating air into the inner cavity of the water tank.

[0028] The filter cleaning method, using the above-mentioned drainage device, includes:

[0029] Step 1: When filtering and draining operations are required, the sewage outlet is closed, the switching drive mechanism drives the switching plate to the drainage state, and the filtering drive mechanism drives the filter plate to the filtering state. The water flowing into the water inlet is filtered by the filter plate and then flows out through the drain outlet;

[0030] Step 2: When cleaning is required, the sewage outlet is opened, the switch drive mechanism drives the switch plate to the sewage discharge state, and the filter drive mechanism drives the filter plate to the cleaning state, and the water flowing into the water inlet bypasses the filter plate and flows out through the sewage outlet;

[0031] Step 3. When the cleaning operation is completed and filtering and drainage operations need to be continued, the sewage outlet is closed, the switching drive mechanism drives the switching plate to the drainage state, and the filtering drive mechanism drives the filter plate to the filtering state. The water flowing into the water inlet is filtered by the filter plate and then flows out through the drain outlet.

[0032] Beneficial effects of the present invention:

[0033] On the basis of the shell, the switching module and the filtering module are coordinated, and the states of the switching plate and the filter plate are adjusted. When the switching plate is in the drainage state and the filter plate is in the filtering state, the filtering and drainage operation can be carried out stably. When the switching plate is in the sewage discharge state and the filter plate is in the cleaning state, the cleaning operation can be carried out in time to avoid interference with the filter plate. The cleaning operation process is simple, the cleaning effect is good, the cleaning time is short, the maintenance cost is low, the switching time between the filtering and drainage operation and the cleaning operation is short, the connection is smooth, and the drainage efficiency is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic structural diagram of one aspect of the drainage device according to an embodiment of the present invention;

[0035] Figure 2 is a schematic structural diagram of another orientation of the drainage device according to an embodiment of the present invention;

[0036] Figure 3is a side view of a drainage device according to an embodiment of the present invention;

[0037] Figure 4 is a cross-sectional view of a drainage device according to an embodiment of the present invention;

[0038] Figure 5 yes Figure 4 The enlarged view of point A in the middle;

[0039] Figure 6 It is a schematic diagram of the cross-section structure of the drainage device described in an embodiment of the present invention.

[0040] In the figure:

[0041] 1. Shell;

[0042] 11. Water inlet; 12. Drainage outlet; 13. Sewage outlet; 14. Annular enclosure; 15. Support frame; 16. Sewage door; 17. Guide plate;

[0043] 2. Switch modules;

[0044] 21. Switching drive mechanism; 22. Switching plate;

[0045] 3. Filter module;

[0046] 31. filter drive mechanism; 311. filter support assembly; 3111. baffle plate; 3112. elastic support member; 312. filter drive; 3121. take-up roller; 3122. take-up rope;

[0047] 32. Filter plate;

[0048] 4. Separator;

[0049] 41. Water hole;

[0050] 5. Blocking module;

[0051] 51, arresting seat; 511, arresting shell; 512, slider;

[0052] 52. Arresting rope;

[0053] 53. Elastic reset member;

[0054] 54. Limiting magnet;

[0055] 6. Flushing module;

[0056] 61. Water tank; 62. Air pump; 63. Liquid level gauge;

[0057] 100. Water inlet pipe. DETAILED DESCRIPTION

[0058] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar parts or parts having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0059] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the description of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0061] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0062] like Figure 1-Figure 6 As shown, the present invention provides a drainage device, including a housing 1, a switching module 2 and a filtering module 3. The housing 1 is provided with a working chamber, and the outer wall of the housing 1 is provided with a water inlet 11, a drain port 12 and a sewage outlet 13 connected to the working chamber. The switching module 2 includes a switching drive mechanism 21 and a switching plate 22. The switching drive mechanism 21 can drive the switching plate 22 to switch between a drainage state and a sewage discharge state. When the switching plate 22 is in the drainage state, the water inlet 11 is connected to the drain port 12. When the switching plate 22 is in the sewage discharge state, the switching plate 22 closes the drain port 12. The filtering module 3 includes a filtering drive mechanism 31 and a filter plate 32. The filter plate 32 is located in the working chamber. The filtering drive mechanism 31 can drive the filter plate 32 to switch between a filtering state and a cleaning state. When the filter plate 32 is in the filtering state, the water inlet 11 and the drain port 12 are located on both sides of the filter plate 32. When the filter plate 32 is in the cleaning state, water flowing in from the water inlet 11 can bypass the filter plate 32 and flow to the sewage outlet 13.

[0063] In the present invention, on the basis of the shell 1, the switching module 2 and the filtering module 3 cooperate with each other, and by adjusting the states of the switching plate 22 and the filter plate 32, when the switching plate 22 is in the drainage state and the filter plate 32 is in the filtering state, the filtering and drainage operation can be stably performed, and when the switching plate 22 is in the sewage discharge state and the filter plate 32 is in the cleaning state, the cleaning operation can be performed in time, avoiding the interference of the filter plate 32, the cleaning operation process is simple, the cleaning effect is good, the cleaning time is short, the maintenance cost is low, the switching time between the filtering and drainage operation and the cleaning operation is short, the connection is smooth, and the drainage efficiency is guaranteed.

[0064] Specifically, the housing 1 is in an elongated shape, the water inlet 11 is located at one end of the housing 1, the drain port 12 is located at the other end of the housing 1, and the sewage outlet 13 is located at the side wall of the housing 1. The above arrangement makes the water flow smoother during the filtering and drainage operation, thereby improving the efficiency of filtering and drainage.

[0065] More specifically, the drainage device further comprises a partition plate 4, which is arranged in the working chamber, wherein the water inlet 11 and the sewage outlet 13 are located on one side of the partition plate 4, and the sewage outlet 12 is located on the other side of the partition plate 4. In the direction away from the sewage outlet 13, the partition plate 4 gradually extends toward the water inlet 11, and the partition plate 4 is provided with a water hole 41. When the switching plate 22 is in the sewage discharge state, the switching plate 22 abuts against the partition plate 4 to close the water hole 41. The above arrangement enables the switching plate 22 to close the sewage outlet 12 by closing the water hole 41, thereby preventing foreign matter and impurities from gathering near the sewage outlet 12 during the cleaning operation, thereby affecting the subsequent filtering and drainage operation, and when the switching plate 22 abuts against the partition plate 4, foreign matter and impurities can be more efficiently guided to the sewage outlet 13.

[0066] In this embodiment, one end of the partition plate 4 facing the sewage outlet 13 is located at the edge of the sewage outlet 13 facing the drain outlet 12, so that foreign matter and debris are not easily accumulated and stuck.

[0067] Specifically, the switching drive mechanism 21 includes an electric push rod, an output end of which is connected to the switching plate 22 and can drive the switching plate 22 to move linearly.

[0068] More specifically, the length direction of the shell 1 is the first direction, the partition plate 4 is arranged at an angle to the first direction, the water hole 41 is arranged at the middle position of the partition plate 4, an annular enclosure 14 is arranged in the working chamber, the annular enclosure 14 is arranged around the inner opening outer periphery of the drain port 12, and a plurality of openings are arranged on the outer periphery of the switching plate 22. When the switching plate 22 is attached to the annular enclosure 14, the drain port 12 is closed, and when the switching plate 22 is attached to the partition plate 4, the water hole 41 is closed. The above arrangement can more directly and reliably close the drain port 12 and cut off the water flow, so that the shell 1 can be used as a valve body.

[0069] In this embodiment, a support frame 15 is provided on the outside of the shell 1, and the outer opening of the drain outlet 12 is located in the support frame 15. A plurality of water outlets are provided circumferentially of the support frame 15, and the drain outlet 12 is connected with the plurality of water outlets. The switching drive mechanism 21 is installed on the support frame 15, and the output end passes through the support frame 15 and the drain outlet 12 and extends into the working chamber, and is connected to the switching plate 22. In addition, the switching plate 22 is rotatably connected to the output end of the switching drive mechanism 21 through a rotating shaft, and the rotation axis is perpendicular to the first direction. A torsion spring is provided on the rotating shaft of the switching plate 22, so that the switching plate 22 is perpendicular to the first direction when in a balanced state.

[0070] In other embodiments, the switching drive mechanism 21 may also be a hydraulic cylinder or an electric cylinder.

[0071] Specifically, the filter drive mechanism 31 includes a filter support assembly 311 and a filter driver 312. The filter plate 32 is connected to the inner wall of the working chamber through the filter support assembly 311, the filter support assembly 311 drives the filter plate 32 to stop in the filtering state, the filter driver 312 is arranged on the housing 1, and the output end is connected to the filter plate 32, and the filter driver 312 can drive the filter plate 32 to move to the cleaning state. The filter support assembly 311 and the filter driver 312 cooperate with each other and can efficiently drive the filter plate 32 to adjust between the filtering state and the cleaning state.

[0072] More specifically, the filter support assembly 311 includes a sealing plate 3111 and an elastic support member 3112. The sealing plate 3111 is arranged on the inner wall of the working chamber, one end of the filter plate 32 is located between the inner wall of the working chamber and the sealing plate 3111, one end of the elastic support member 3112 is connected to the inner wall of the working chamber, and the other end is connected to the filter plate 32. By providing the sealing plate 3111, the gap between the filter plate 32 and the inner wall of the working chamber can be reliably closed.

[0073] More specifically, the filter driver 312 includes a winding motor, a winding roller 3121 and a winding rope 3122. The winding roller 3121 is connected to the output end of the winding motor, and the winding rope 3122 is wound around the winding roller 3121, and one end of the winding rope is connected to the filter plate 32. The above arrangement can drive the filter plate 32 more flexibly.

[0074] In the present embodiment, the sealing plate 3111 is connected to the inner wall of the working chamber, is set at an angle with the first direction, and is inclined toward the drain outlet 12. The winding motor and the winding roller 3121 are located on the outside of the shell 1. The winding rope 3122 penetrates into the working chamber from the outside of the shell 1. One end of the filter plate 32 is located between the inner wall of the working chamber and the sealing plate 3111, and the other end is connected to the winding rope 3122. A plurality of filter holes are provided on the filter plate 32. The aperture size of the filter holes and the number of filter holes are set according to actual needs. In the first direction, the elastic support member 3112 is located between the winding rope 3122 and the sealing plate 3111. The elastic support member 3112 is specifically a gas spring in the shape of a rod, one end of which is connected to the inner wall of the working chamber, and the other end is rotatably connected to the filter plate 32. The filter plate 32 is rotatably connected to the elastic support member 3112 through a rotating shaft, and the rotating axis is perpendicular to the first direction. A torsion spring is arranged on the rotating shaft of the filter plate 32, so that the filter plate 32 remains in a filtering state when it is in a balanced state, and when the upper ends of the two filter plates 32 are separated to both sides, the elastic support member 3112 can be slightly shortened, so that the filter plate 32 can move in the opposite direction while preventing the end of the filter plate 32 facing the water inlet 11 from being separated from the sealing plate 3111.

[0075] In other embodiments, the sealing plate 3111 may also be a folding-shaped shielding layer or other structure, as long as the end of the filter plate 32 facing the water inlet 11 and the inner wall of the working chamber are sealed.

[0076] Specifically, a sewage discharge door 16 is further provided on the housing 1 , and the sewage discharge door 16 can close and open the sewage discharge port 13 .

[0077] More specifically, the sewage door 16 is rotatably connected to a side of the sewage outlet 13 close to the drain outlet 12, and the sewage door 16 can be opened or closed by the driving device.

[0078] In this embodiment, a guide plate 17 is also provided on the outer wall of the shell 1. The guide plate 17 is located on the side of the sewage outlet 13 close to the water inlet 11, is set at an angle to the first direction, and is inclined toward the water inlet 11, so as to shield and protect the winding motor and winding roller 3121 outside the shell 1.

[0079] Specifically, the drainage device also includes a blocking module 5, which includes a blocking seat 51, a blocking rope 52 and an elastic reset member 53. The blocking seat 51 is located in the working chamber, one end of the blocking rope 52 is connected to the blocking seat 51, and the other end is connected to the filter plate 32. The blocking rope 52 has a folded state and a blocking state. When the blocking rope 52 is in the folded state, the blocking seat 51 is against the filter plate 32. When the blocking rope 52 is in the blocking state, the filter plate 32 and the blocking seat 51 are spaced apart, the blocking rope 52 is tightened between the filter plate 32 and the blocking seat 51, and the elastic reset member 53 is configured to drive the blocking rope 52 to stop in the folded state. The above arrangement enables the blocking rope 52 to temporarily intercept the foreign matter when the filter plate 32 is pushed open by foreign matter, leaving enough adjustment time for the switch plate 22.

[0080] More specifically, the blocking seat 51 includes a blocking shell 511 and a slider 512. The slider 512 is slidably arranged in the inner cavity of the blocking shell 511. One end of the blocking rope 52 extends into the inner cavity of the blocking shell 511 and is connected to the slider 512. The other end is connected to the filter plate 32 on the outer side of the blocking shell 511. The elastic reset member 53 is clamped between the slider 512 and the inner wall of the blocking shell 511.

[0081] In this embodiment, the blocking module 5 includes a limiting magnet 54 , and the blocking seat 51 is positioned in the working chamber by the limiting magnet 54 . The elastic reset member 53 is a common spring, which is sleeved on the outside of the blocking rope 52 .

[0082] In other embodiments, the blocking seat 51 can also be a structure in which the blocking shell 511 and the reel cooperate with each other, the reel is rotatably arranged in the inner cavity of the blocking shell 511, the blocking rope 52 is wound around the reel, and the elastic reset member 53 is a coil spring.

[0083] Specifically, two filter modules 3 are provided, each filter module 3 is equipped with a blocking module 5, and when the two filter plates 32 are in the cleaning state, the two blocking modules 5 are magnetically connected through the limiting magnet 54. The above arrangement enables the filter plate 32 to pull the blocking rope 52 out of the blocking seat 51 through the action of the limiting magnet 54 when the filter plate 32 is pushed open by foreign matter and impurities, so as to timely intercept the foreign matter and impurities.

[0084] More specifically, the two filter modules 3 are symmetrically arranged, and the two filter plates 32 are inclined toward the drain port 12 when in a cleaning state.

[0085] In this embodiment, the blocking module 5 is arranged at one end of the filter plate 32 facing the drain outlet 12, and the cross-section of the working chamber perpendicular to the first direction is rectangular. The two filter plates 32 are respectively connected to the two opposite inner walls of the working chamber. The extension direction of the blocking shell 511 is perpendicular to the first direction and is consistent with the end size of the filter plate 32. Along the length direction of the blocking shell 511, a plurality of blocking ropes 52 are arranged in sequence. The plurality of blocking ropes 52 can be connected to the same slider 512 or respectively connected to a slider 512. When the ends of the two filter plates 32 are against each other, the two blocking shells 511 fit together to achieve a sealing effect.

[0086] In other embodiments, when two filtering modules 3 and two blocking modules 5 are respectively provided, one of the two blocking modules 5 may be provided with a limiting magnet 54 and the other may be provided with an iron block, and the limiting magnet 54 and the iron block are attracted to each other.

[0087] In other embodiments, when one filtering module 3 and one blocking module 5 are each provided, one of the blocking module 5 and the inner wall of the working chamber may be provided with a limiting magnet 54, and the other may be provided with an iron block, and the limiting magnet 54 and the iron block may be adsorbed to each other, or both may be provided with limiting magnets 54, and the two limiting magnets 54 may be adsorbed to each other.

[0088] Specifically, the drainage device further comprises a flushing module 6, the output end of which is connected to the water inlet 11, and the flushing module 6 can clean the working cavity by airflow or water flow. By providing an independent flushing module 6 to clean the working cavity, it is more efficient and reliable.

[0089] More specifically, the flushing module 6 includes a water tank 61 and an air pump 62. The inner cavity of the water tank 61 is connected to the water inlet 11, and the air pump 62 can drive the water in the water tank 61 to flow toward the water inlet 11 by inflating air into the inner cavity of the water tank 61. The air pump 62 cooperates with the water tank 61 to clean the working cavity with water flow, which is more powerful and has a better effect.

[0090] In this embodiment, the water tank 61 is long and extends along a first direction and is located on one side of the shell 1. The first direction is a vertical direction. The water inlet 11 of the shell 1 opens downward and the outlet 12 opens upward. The air pump 62 is arranged at the top of the water tank 61. A liquid level gauge 63 is arranged in the water tank 61. The water inlet pipe 100 is connected to the water inlet 11. The water flow discharged from the water inlet pipe 100 can enter the water tank 61. The drainage device also includes a controller. According to the amount of water required for flushing the working chamber, a certain liquid level threshold is set by the controller. When the controller detects through the liquid level gauge 63 that the water level inside the water tank 61 reaches the set threshold, the air pump 62 can be controlled to apply a certain pressure to the inner cavity of the water tank 61 so that water no longer enters the water tank 61.

[0091] In other embodiments, the flushing module 6 may also only include an air pump 62 to clean the working chamber through airflow.

[0092] The present invention also provides a filtering and cleaning method, using the above-mentioned drainage device, comprising:

[0093] Step 1: When filtering and drainage operations are required, close the sewage outlet 13, switch the drive mechanism 21 to drive the switch plate 22 to the drainage state, and the filter drive mechanism 31 drives the filter plate 32 to the filtering state. The water flowing into the water inlet 11 is filtered by the filter plate 32 and then flows out through the drain outlet 12.

[0094] Step 2: When cleaning is required, open the sewage outlet 13, switch the drive mechanism 21 to drive the switch plate 22 to the sewage discharge state, and the filter drive mechanism 31 drives the filter plate 32 to the cleaning state. The water flowing into the water inlet 11 bypasses the filter plate 32 and flows out through the sewage outlet 13.

[0095] Step 3. When the cleaning operation is completed and the filtering and drainage operation needs to be continued, the sewage outlet 13 is closed, the switching drive mechanism 21 drives the switching plate 22 to the drainage state, and the filtering drive mechanism 31 drives the filter plate 32 to the filtering state. The water flowing into the water inlet 11 is filtered by the filter plate 32 and then flows out through the drain outlet 12.

[0096] In the filtering and cleaning method of the present invention, on the basis of the shell 1, the switching module 2 and the filtering module 3 cooperate with each other, and by adjusting the states of the switching plate 22 and the filter plate 32, when the switching plate 22 is in the drainage state and the filter plate 32 is in the filtering state, the filtering and drainage operation can be stably performed, and when the switching plate 22 is in the sewage discharge state and the filter plate 32 is in the cleaning state, the cleaning operation can be performed in time, avoiding the interference of the filter plate 32, the cleaning operation process is simple, the cleaning effect is good, the cleaning time is short, the maintenance cost is low, the switching time between the filtering and drainage operation and the cleaning operation is short, the connection is smooth, and the drainage efficiency is guaranteed.

[0097] Based on the specific structure of the drainage device, the filtering and cleaning method specifically includes the following steps:

[0098] S1. Connect the water inlet pipe 100 to the water inlet 11, the drainage pipe to the drainage outlet 12, and the sewage pipe to the sewage outlet 13.

[0099] In this step, the shell 1 is placed vertically, that is, the first direction is the vertical direction, the water inlet 11 opens downward, the drain outlet 12 opens upward, and the sewage outlet 13 opens to one side. In the initial state, the switching plate 22 is against the annular enclosure 14, closing the drain outlet 12, and an electromagnetic valve is provided on the water inlet pipe 100, which can control the on and off of the water inlet pipe 100. The water inlet pipe 100 and the shell 1 are coaxially arranged and located below the shell 1.

[0100] S2. When filtering and drainage operations are required, the sewage outlet 13 is closed, the switching drive mechanism 21 drives the switching plate 22 to the drainage state, and the filtering drive mechanism 31 drives the filter plate 32 to the filtering state. The water flowing into the water inlet 11 is filtered by the filter plate 32 and then flows out through the drainage outlet 12.

[0101] In this step, the sewage gate 16 closes the sewage outlet 13, and the switching drive mechanism 21 drives the switching plate 22 to move downward, so that the switching plate 22 is spaced apart from the annular enclosure 14 and the partition plate 4, so that the water inlet 11 and the drain outlet 12 are connected through the working chamber. At this time, the top ends of the filter plates 32 of the two filter modules 3 are abutted against each other, forming an eight-shaped shape, so that the water flowing in from the water inlet 11 can only flow to the drain outlet 12 after being filtered by the filter plate 32.

[0102] After the drainage device is prepared, the solenoid valve on the water inlet pipe 100 is opened to perform filtering and drainage operations. During this process, the water discharged from the water inlet pipe 100 also flows into the inner cavity of the water tank 61, through the cooperation of the controller and the liquid level meter 63 of the flushing module 6. According to the amount of water required for the flushing operation chamber, a certain liquid level threshold is set by the controller. When the controller detects through the liquid level meter 63 that the water level inside the water tank 61 reaches the set threshold, the air pump 62 is controlled to apply a certain pressure to the inner cavity of the water tank 61, so that no water enters the water tank 61, and finally a set amount of water is stored in the inner cavity of the water tank 61.

[0103] S3. When cleaning operation is required, the sewage outlet 13 is opened, the switching drive mechanism 21 drives the switching plate 22 to the sewage discharge state, and the filter drive mechanism 31 drives the filter plate 32 to the cleaning state. The water flowing into the water inlet 11 bypasses the filter plate 32 and flows out through the sewage outlet 13.

[0104] In this step, the solenoid valve on the water inlet pipe 100 is closed, and the switching drive mechanism 21 drives the switching plate 22 to move downward, so that the switching plate 22 is against the partition plate 4, closing the water hole 41, and the winding motor drives the winding roller 3121 to rotate around its own axis to wind up the winding rope 3122, finally separating and opening the top ends of the filter plates 32 of the two filter modules 3, and the sewage door 16 opens the sewage outlet 13.

[0105] Then, the air pump 62 is used to pressurize the inner cavity of the water tank 61, so that the cleaning water in the inner cavity of the water tank 61 enters the working cavity from bottom to top, and foreign matter and impurities inside the working cavity are flushed out through the drain port 13, thereby flushing the working cavity.

[0106] S4. When the cleaning operation is completed and the filtration and drainage operation needs to be continued, the sewage outlet 13 is closed, the switching drive mechanism 21 drives the switching plate 22 to the drainage state, and the filtering drive mechanism 31 drives the filter plate 32 to the filtering state. The water flowing into the water inlet 11 is filtered by the filter plate 32 and then flows out through the drain outlet 12.

[0107] In this step, after the cleaning operation is completed, the air pump 62 stops working, and the winding motor rotates in the opposite direction, so that the top ends of the two filter plates 32 are in contact and pressed together again and adjusted to the filtering state. The switching drive mechanism 21 drives the switching plate 22 to move upward, so that the switching plate 22 is spaced apart from the annular enclosure 14 and the partition plate 4, and the sewage door 16 closes the sewage outlet 13.

[0108] S5. When the filter plate 32 is pushed away from the filtering state by foreign matter and impurities, the blocking rope 52 stretched between the filter plate 32 and the blocking seat 51 blocks the foreign matter and impurities.

[0109] In this step, when the two filter plates 32 are squeezed apart by foreign matter and impurities, the filtering capacity of the filter module 3 decreases. At this time, since the two blocking seats 51 are magnetically connected by the limiting magnets 54, the filter plates 32 and the blocking seats 51 are separated, and the blocking rope 52 is pulled out from the blocking seat 51 and tensioned between the filter plates 32 and the blocking seat 51 to block foreign matter and impurities.

[0110] Before the two blocking seats 51 are finally separated, it is necessary to switch the drive mechanism 21 to quickly drive the switching plate 22 to move downward so that the switching plate 22 is promptly against the partition plate 4 to close the water hole 41. Therefore, a proximity switch or any other switch or sensor that can detect the separation of the two can be set between the top ends of the two filter plates 32 or between the two blocking shells 511. At the same time, a pressure sensor can also be set at the bottom of the inner cavity of the blocking shell 511. When the slider 512 slides downward to squeeze the pressure sensor, the controller can control the switching drive mechanism 21 to move quickly to drive the switching plate 22 to move downward. The specific monitoring method is set according to actual production and usage conditions and will not be repeated here.

[0111] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A drainage device, characterized in that: include: A shell (1), wherein a working chamber is provided inside the shell (1), and an outer wall of the shell (1) is provided with a water inlet (11), a water outlet (12) and a sewage outlet (13) which are connected to the working chamber; A switching module (2), the switching module (2) comprising a switching drive mechanism (21) and a switching plate (22), the switching drive mechanism (21) being capable of driving the switching plate (22) to switch between a drainage state and a sewage discharge state, the water inlet (11) being connected to the drainage port (12) when the switching plate (22) is in the sewage discharge state, the switching plate (22) closing the drainage port (12); A filter module (3), the filter module (3) comprising a filter drive mechanism (31) and a filter plate (32), the filter plate (32) being located in the working chamber, the filter drive mechanism (31) being capable of driving the filter plate (32) to switch between a filtering state and a cleaning state, when the filter plate (32) is in the filtering state, the water inlet (11) and the water outlet (12) being located on both sides of the filter plate (32), when the filter plate (32) is in the cleaning state, water flowing in from the water inlet (11) can bypass the filter plate (32) and flow to the sewage outlet (13); The shell (1) is in the shape of an elongated strip, the water inlet (11) is located at one end of the shell (1), the water outlet (12) is located at the other end of the shell (1), and the sewage outlet (13) is located on the side wall of the shell (1); The device further comprises a partition plate (4), wherein the partition plate (4) is arranged in the working chamber, the water inlet (11) and the sewage outlet (13) are located on one side of the partition plate (4), and the sewage outlet (12) is located on the other side of the partition plate (4). In a direction away from the sewage outlet (13), the partition plate (4) gradually extends toward the water inlet (11), and the partition plate (4) is provided with a water through hole (41). When the switching plate (22) is in the sewage discharge state, the switching plate (22) is abutted against the partition plate (4) to close the water through hole (41).

2. The drainage device according to claim 1, characterized in that: The filter drive mechanism (31) comprises: A filter support assembly (311), wherein the filter plate (32) is connected to the inner wall of the working chamber via the filter support assembly (311), and the filter support assembly (311) drives the filter plate (32) to stop in the filtering state; A filter driver (312), the filter driver (312) being arranged in the housing (1), the output end of the filter driver being connected to the filter plate (32), the filter driver (312) being capable of driving the filter plate (32) to move to the cleaning state.

3. The drainage device according to claim 2, characterized in that: The filter driver (312) comprises: Winding motor; A winding roller (3121), connected to the output end of the winding motor; A winding rope (3122) is wound around the winding roller (3121), and one end of the winding rope is connected to the filter plate (32).

4. The drainage device according to claim 1, characterized in that: It also includes a blocking module (5), wherein the blocking module (5) includes: An arresting seat (51), the arresting seat (51) being located in the working chamber; a blocking rope (52), one end of the blocking rope (52) being connected to the blocking seat (51) and the other end being connected to the filter plate (32); the blocking rope (52) having a retracted state and a blocking state; when the blocking rope (52) is in the retracted state, the blocking seat (51) abuts against the filter plate (32); when the blocking rope (52) is in the blocking state, the filter plate (32) and the blocking seat (51) are spaced apart, and the blocking rope (52) is tensioned between the filter plate (32) and the blocking seat (51); An elastic reset member (53), wherein the elastic reset member (53) is configured to drive the barrier rope (52) to stop in the retracted state.

5. The drainage device according to claim 4, characterized in that: Two filter modules (3) are provided, each filter module (3) is equipped with a blocking module (5), the blocking module (5) comprises a limiting magnet (54), and when the two filter plates (32) are in the cleaning state, the two blocking modules (5) are magnetically connected via the limiting magnet (54).

6. The drainage device according to any one of claims 1 to 5, characterized in that: It also comprises a flushing module (6), the output end of the flushing module (6) being connected to the water inlet (11), and the flushing module (6) being capable of cleaning the working chamber through air flow or water flow.

7. The drainage device according to claim 6, characterized in that: The flushing module (6) comprises: A water tank (61), the inner cavity of the water tank (61) being connected to the water inlet (11); An air pump (62), wherein the air pump (62) can drive the water stored in the water tank (61) to flow toward the water inlet (11) by inflating air into the inner cavity of the water tank (61).

8. A filtering and cleaning method, characterized in that: The drainage device according to any one of claims 1 to 7 comprises: Step 1: When filtering and draining operations are required, the sewage outlet (13) is closed, the switching drive mechanism (21) drives the switching plate (22) to a drainage state, and the filtering drive mechanism (31) drives the filter plate (32) to a filtering state, and the water flowing into the water inlet (11) is filtered by the filter plate (32) and then flows out through the drainage outlet (12); Step 2: When cleaning is required, the sewage outlet (13) is opened, the drive mechanism (21) is switched to drive the switch plate (22) to the sewage discharge state, and the filter drive mechanism (31) drives the filter plate (32) to the cleaning state, so that the water flowing into the water inlet (11) bypasses the filter plate (32) and flows out through the sewage outlet (13); Step 3: When the cleaning operation is completed and it is necessary to continue the filtering and drainage operation, the sewage outlet (13) is closed, the switching drive mechanism (21) drives the switching plate (22) to the drainage state, and the filtering drive mechanism (31) drives the filtering plate (32) to the filtering state, and the water flowing into the water inlet (11) is filtered by the filtering plate (32) and then flows out through the drainage outlet (12).

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