CN113073511B

CN113073511B - Drainage device at low-lying position

Info

Publication number: CN113073511B
Application number: CN202110412234.7A
Authority: CN
Inventors: 郑其强; 李省
Original assignee: Heze Urban Construction Engineering Development Group Co ltd
Current assignee: Heze Urban Construction Engineering Development Group Co ltd; Li Sheng; Zheng Qiqiang
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2023-01-24
Anticipated expiration: 2041-04-16
Also published as: CN113073511A

Abstract

The application discloses low-lying department drainage device, including water-collecting cylinder and clean module. One end of the water collecting cylinder is provided with a first inlet, the other end of the water collecting cylinder is provided with a first outlet, and the water collecting cylinder is also provided with a water passing channel communicated with the first inlet and the first outlet; the cleaning module is including locating the brush hair portion of being washed the flabellum and locating in the water channel of receiving of first exit, and the rivers that get into through first import can be through water channel and assault the fan blade that is washed of receiving of first exit to make and receive to wash the flabellum rotatory, receive to wash the flabellum and can drive brush hair portion and rotate in step, so that brush hair portion can collect the filth, thereby avoid filths such as plastic bags to get into the sewer and deposit in the sewer, occupy the condition emergence of sewer drainage space.

Description

Drainage device at low-lying position

Technical Field

The application belongs to the city infrastructure field, specifically provides a low-lying department drainage device.

Background

Along with the continuous and rapid development of society, the construction problem of urban drainage facilities is increasingly highlighted, particularly the problem of waterlogging is easily formed in low-lying areas of cities, such as bridge holes and other areas in low-lying positions in cities, on one hand, because the drainage facilities are old, strong precipitation or continuous precipitation exceeds the drainage capacity of the drainage facilities in the low-lying areas, precipitation in the precipitation process cannot be discharged in time, the water accumulation in the low-lying areas is increased continuously, on the other hand, water can be collected to the low-lying areas due to the action of gravity, and water flow can carry dirt such as plastic bags, paper garbage and the like to the low-lying areas in the collection process, thereby filths such as plastic bag, paper rubbish are deposited easily in drainage low-lying area, under the influence of factors such as rivers or wind-force when rainfall, the filth enters into the sewer through the outlet easily, filths such as plastic bag are difficult for decomposing under natural condition, the filth is piled up in the sewer of drain department easily, along with the lapse of time, the occupation space crescent of filth in the sewer, influence the drainage flow of sewer, thereby influence the drainage effect of sewer, and then the ponding of urban low-lying area department is difficult in time to discharge, influence people's current, if ponding is long-time to gather, easily form the stink, influence people's living environment.

Disclosure of Invention

In order to solve the above-mentioned problem among the prior art, in order to know promptly for in getting into the sewer in order to solve filth such as plastic bag, paper in the city, influence the problem of the drainage effect of city sewer, the present disclosure provides a low-lying drainage device.

A low-lying drainage device comprises a water collecting cylinder and a cleaning module. One end of the water collecting cylinder is provided with a first inlet, the other end of the water collecting cylinder is provided with a first outlet, and the water collecting cylinder is also provided with a water passing channel communicated with the first inlet and the first outlet; the cleaning module comprises a washed fan blade arranged at the first outlet and a brushing part arranged in the water passing channel, and water flow entering through the first inlet can pass through the water passing channel and impact the washed fan blade at the first outlet so as to enable the washed fan blade to rotate, and the washed fan blade can drive the brushing part to synchronously rotate so as to enable the brushing part to collect dirt.

Rivers flow into the sewer through subaerial outlet, water channel collects rivers, rivers impact the flabellum that receives of first exit through water channel, thereby it can be rotatory to receive to dash the flabellum, and then receive to dash the flabellum and drive brush hair portion and rotate, filths such as plastic bag can be twined to rotatory brush hair portion, thereby brush hair portion can play the filter action and can collect the filth to rivers, avoid filths such as plastic bag to enter into sewer and deposit in the sewer, avoid taking place the condition that the plastic bag blockked up the sewer, and then make the whole of sewer keep unblocked. Due to the fact that the brushing parts in the water passing channels can collect dirt such as plastic bags, the situation that the dirt such as the plastic bags is wound on the washed fan blades to cause the rotation of the washed fan blades to be blocked is avoided.

In one embodiment of the present application, the bristle part includes a plurality of first bristle parts spaced apart from each other along an axial direction of the water collecting cylinder.

Through the mode that the mutual interval of the first brush hair portion of multilayer set up, can reduce the whole weight of brush hair portion to reduce the resistance that receives in the rotatory process of receiving towards the flabellum, improve the rotational speed of brush hair portion, and the interval that has between the first brush hair portion of each layer can hold more filths, thereby can effectual improvement brush hair portion to the ability of filths collection such as plastic bags.

In an embodiment of the application, the bristle part is round platform shape, and the bristle part sets up with the water collecting barrel is coaxial, along the direction of the first export of first import directional, the cross-sectional area of bristle part reduces gradually.

Be the round platform form through brush hair portion, brush hair portion and the coaxial setting of water collecting drum, along the direction of the directional first export of first import, the mode that the cross-sectional area of brush hair portion reduces gradually, brush hair portion is by the direction of the directional first export of first import, the shape of brush hair portion is the form of contracting gradually, thereby deepening water channel along with the filth, because the rotary motion of brush hair portion, the filth group that the filth is attached to in brush hair portion is inseparabler, thereby can improve the collection effect of brush hair portion to filths such as plastic bags.

In an embodiment of this application, low-lying drainage device still includes storing up dirty case and be connected to water channel's inner wall and with the scraping board of brush hair portion butt, scrape the guide channel that the board formed with storing up dirty case intercommunication with water channel's inner wall, brush hair portion for scraping the board and rotate so that the filth that brush hair portion collected gets into storing up dirty case via guide channel.

Scrape the board and can scrape filth such as plastic bag that brush hair portion collected from brush hair portion, and simultaneously, the direction passageway is enclosed by the inner wall of scraping board and water channel, consequently, the filth that brush hair portion was scraped off by the scraping board just is located direction passageway department, the filth of being convenient for gets into in the direction passageway, because the rotary motion of brush hair portion, the filth that the scraping got off gets into in the dirty case of storage through the direction passageway that the inner wall of scraping board and water channel formed, thereby avoid in the plastic bag gets into the sewer, the condition that influences the drainage efficiency of sewer takes place.

In one embodiment of the present application, the inner wall of the water passage is provided with a spiral protrusion to enable the water flow to spirally advance, and the tip of the spiral protrusion faces the guide passage.

Through the mode of the protruding end of spiral towards the guide channel for the rivers that the spiral gos forward can be easier get into the guide channel, thereby rivers can be with filths such as plastic bag in the storage dirt case.

In an embodiment of this application, the scraping board is equipped with first through-hole, and dirty case of storage is located the outside of water catch bowl, and the tank wall of dirty case of storage is equipped with the second through-hole, and rivers can pass through first through-hole and/or second through-hole.

In an embodiment of the application, the inner wall of water passing channel is provided with a spiral protrusion to enable water flow to advance spirally, the rushed fan blade is provided with a rushed part, and the water flow advancing spirally can impact the rushed part.

Through the spiral protrusion that water passing channel's inner wall set up, water passing channel can further play the effect of compiling to the rivers that get into through first import to rivers spiral in water passing channel advances, thereby can produce bigger impact force to receiving towards the flabellum.

In an embodiment of the present application, the water passing channel is in a circular truncated cone shape, and the cross section of the water passing channel gradually decreases along a direction in which the first inlet points to the first outlet.

The shape through water channel is round platform form, and along the directional direction of first export of first import, water channel's cross section reduces the mode gradually, can effectual improvement water channel to the collection effect of rivers to improve rivers to receiving the impact force of dashing the flabellum, make and to receive to dash the flabellum and can overcome bigger resistance at rotatory in-process.

In an embodiment of the application, the low-lying drainage device further comprises a shunting cover arranged opposite to the first inlet, the shunting cover is connected with the bristle part, and the cross-sectional area of the shunting cover is gradually reduced along the axis of the water collecting cylinder and in the direction from the first outlet to the first inlet.

The brush hair portion is by receiving towards the flabellum drive motion, because brush hair portion itself is equipped with a large amount of brush hairs, rivers direct impact brush hair portion not only can't strengthen the rotary motion of brush hair portion, still can obstruct the rotary motion of brush hair portion, through setting up the reposition of redundant personnel lid, can alleviate the rivers that get into through first import to the direct impact of brush hair portion to reduce the resistance that brush hair portion received in the rotatory in-process.

In an embodiment of this application, low-lying department drainage device still includes can dismantle the collecting box of being connected with the one end that the water catch bowl was equipped with first export, the import and the first export intercommunication of collecting box, and the collecting box is equipped with rather than the drilling of inside cavity intercommunication to make the liquid in the inside cavity of collecting box can leave the collecting box through drilling, and it is equipped with a plurality ofly to drill.

Through the mode that sets up the collecting box, can further filter the filterable rivers of brush hair portion, the collecting box can filter and collect solid such as stone to improve the clean effect to rivers, avoid solid such as stone to occupy the space of sewer.

Drawings

Some embodiments of the disclosure are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic structural view of an exemplary embodiment of the present application;

FIG. 2 is a partial schematic structural view of an exemplary embodiment of the present application;

FIG. 3 is a schematic view of a portion of the construction of a water collection canister in the present application;

fig. 4 is a schematic view of an exemplary embodiment in which the soil tank of the present application is installed outside the sump.

In the figure:

101-a water collecting cylinder; 102-a first inlet; 103-a first outlet; 104-a water passing channel; 105-impacted fan blades; 106-a bristle portion; 107-a sewage storage tank; 108-a scraping plate; 109-a first via; 110-a second via; 111-first tier bristle section; 112-middle layer bristle part; 113-a bottom layer bristle section; 114-a helical protrusion; 115-a diverter cap; 116-a collection bin; 117-rain perforated strainer.

Detailed Description

It should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present disclosure, not all of the embodiments of the present disclosure, and the part of the embodiments are intended to explain the technical principles of the present disclosure and not to limit the scope of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments provided in the present disclosure without inventive step, shall fall within the scope of protection of the present disclosure.

It should be noted that in the description of the present disclosure, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present disclosure, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present disclosure can be understood by those skilled in the art as appropriate.

Referring to fig. 1 to 4, the present application relates to a low-lying drain device including a water collection canister 101 and a cleaning module. One end of the water collecting cylinder 101 is provided with a first inlet 102, the other end is provided with a first outlet 103, and the water collecting cylinder 101 is also provided with a water passing channel 104 for communicating the first inlet 102 and the first outlet 103; the cleaning module comprises an impacted fan blade 105 arranged at the first outlet 103 and a brush hair part 106 arranged in the water channel 104, water flow entering through the first inlet 102 can pass through the water channel 104 and impact the impacted fan blade 105 at the first outlet 103 so as to enable the impacted fan blade 105 to rotate, and the impacted fan blade 105 can drive the brush hair part 106 to synchronously rotate, so that the brush hair part 106 can collect dirt.

When water flows into a sewer through a water passage 104 through an above-ground water outlet, the water passage 104 collects the water flow, the water flow impacts an impacted fan blade 105 at a first outlet 103 through the water passage 104, so that the impacted fan blade 105 can rotate, the impacted fan blade 105 can be directly connected with a brush hair part 106 in a manner that a bearing seat is matched with a transmission rod, and can also be connected with a transmission mechanism through a transmission mechanism, if a gear set is used for realizing indirect connection of the impacted fan blade 105 and the brush hair part 106, the impacted fan blade 105 can drive the brush hair part 106 to rotate in a manner that the impacted fan blade 105 is matched with the gear set, and the impacted fan blade 105 can drive the brush hair part 106 to rotate in a manner of outputting high torque, so that the impacted fan blade 105 can drive the brush hair part 106 to rotate, dirt such as plastic bags in the water flow can be wound by the rotating brush hair part 106, so that the brush hair part 106 can filter the water flow and can collect the dirt such as the dirt, the dirt as the plastic bags and the dirt can be prevented from entering the sewer along with the sewer and depositing in the sewer, and the sewer can occupy the space of the plastic bags, and the plastic bags can be prevented from blocking the sewer, and the drainage effect at low-lying places can be caused. The brush part 106 in the water passage 104 can collect the dirt such as plastic bags in the water flow, so that the situation that the dirt such as plastic bags is wound on the washed fan blades 105 to prevent the washed fan blades 105 from being blocked in rotation can be avoided.

Those skilled in the art to which the present application pertains can understand that the water collecting barrel 101 may be provided with lifting lugs, so that the rainwater grate 117 is installed on the existing rainwater grate 117 in a lifting manner through the through holes of the rainwater grate 117, and thus the drain device for the low-lying part has universality. Of course, the installation mode of the drain device at the low-lying position is not limited to the hoisting mode, and other installation modes can be provided, which are not described herein again.

Those skilled in the art of the present application can also understand that the axial direction of the punched fan blades 105 may not only be vertical upward as shown in fig. 1, but also that the axial direction of the punched fan blades 105 in the present application has no special requirement, and only the punched fan blades 105 can rotate after being capable of withstanding water flow impact, and the axial direction of the bristle part 106 may not only be vertical upward as shown in fig. 1, but also be other directions, such as a horizontal direction, i.e., the bristle part 106 can rotate under the driving of the punched fan blades 105, and can collect the dirt in the water flow, which is not described herein again.

Referring to fig. 1 and 2, further, in an embodiment of the present application, the bristle part 106 is in a circular truncated cone shape, the bristle part 106 is disposed coaxially with the water collecting cylinder 101, and the cross-sectional area of the bristle part 106 gradually decreases along a direction from the first inlet 102 to the first outlet 103.

In the process that the dirt such as plastic bags and the like passes through the water flowing channel 104 along with water flow, the brush hair part 106 can wind the dirt such as the plastic bags and the like, the brush hair part 106 is in a round table shape, the brush hair part 106 and the water collecting barrel 101 are coaxially arranged, the cross section area of the brush hair part 106 is gradually reduced along the direction that the first inlet 102 points to the first outlet 103, and the brush hair part 106 can collect the dirt such as the plastic bags and the like, so that the collecting effect of the brush hair part 106 on the dirt such as the plastic bags and the like can be improved.

Referring to fig. 2, further, in an embodiment of the present application, the bristle part 106 includes a plurality of layers of first bristle parts, and the layers of first bristle parts are spaced apart from each other along the axial direction of the water collecting cylinder 101.

Through the mode that the mutual interval of the first brush hair portion of multilayer set up, can reduce the whole weight of brush hair portion 106 to the reduction receives the resistance that receives among the rotatory process of flabellum 105, improves the rotational speed of brush hair portion 106, and the interval that has between the first brush hair portion of each layer can hold more filths, thereby can effectual improvement brush hair portion 106 to the ability of filths collection such as plastic bags.

As shown in fig. 1 and 2, the number of the first bristle parts is three layers, for better describing the present application, the first bristle parts of the three layers are named as first layer bristle parts 111, middle layer bristle parts 112 and bottom layer bristle parts 113 respectively, the first layer bristle parts 111, the middle layer bristle parts 112 and the bottom layer bristle parts 113 are arranged at intervals along the axial direction of the water collecting drum 101, so that in the rotating process of the bristle parts 106, more plastic bags and other dirt can be accommodated in the intervals between the first bristle parts of each layer, and the cleaning effect of the bristle parts 106 can be improved. Of course, those skilled in the art will understand that the number of the first bristle part in the present application is not limited to three layers as shown in fig. 1, but may be other numbers, and will not be described herein.

Referring to fig. 1 and 2, in one embodiment of the present application, the water passage 104 is in the shape of a circular truncated cone, and the cross section of the water passage 104 gradually decreases along the direction from the first inlet 102 to the first outlet 103.

The water channel 104 is in a truncated cone shape, and the cross section of the water channel 104 is gradually reduced along the direction that the first inlet 102 points to the first outlet 103, so that the converging effect of the water channel 104 on water flow can be effectively improved, the impact force of the water flow on the impacted fan blades 105 is improved, and greater resistance can be overcome by the impacted fan blades 105 in the rotating process.

Referring to fig. 1 and 2, in one embodiment of the present application, the inner wall of the water passage 104 is provided with a spiral protrusion 114 to enable the water flow to advance spirally, and the washed fan blades 105 are provided with a washed part, and the water flow advancing spirally can impact the washed part.

The spiral protrusion 114 arranged on the inner wall of the water passage 104 can further collect the water flow entering through the first inlet 102, so that the water flow spirally advances in the water passage 104, and a larger impact force can be generated on the impacted fan blades 105.

Referring to fig. 1, in one embodiment of the present application, the recess drain further comprises a flow distribution cover 115 disposed opposite to the first inlet 102, the flow distribution cover 115 is connected to the bristle part 106, and the cross-sectional area of the flow distribution cover 115 is gradually reduced along the axis of the water collection cylinder 101 and in a direction from the first outlet 103 to the first inlet 102.

Through setting up the reposition of redundant personnel lid 115 with first import 102 relative setting, can alleviate the direct impact of rivers that get into through first import 102 to brush hair portion 106 to reduce the resistance that brush hair portion 106 received in the rotatory process, can also avoid simultaneously rivers to wash filths such as the plastic bag that have twined on brush hair portion 106 in the sewer. Through the mode that the cross-sectional area of the shunting cover 115 is gradually reduced along the axis of the water collecting cylinder 101 and in the direction that the first outlet 103 points to the first inlet 102, the shunting cover 115 can shunt the water flow entering through the first inlet 102, so that the water flow is dispersed on the inner wall of the water passing channel 104, and the mode that the spiral protrusion 114 is arranged on the inner wall of the water passing channel 104 is combined, the converging effect of the water collecting cylinder 101 on the water flow can be improved, and the resistance which can be overcome by the rushed fan blades 105 is improved.

Referring to fig. 1, 3 and 4, in one embodiment of the present application, the recess drain further includes a dirt storage tank 107 and a scraping plate 108 connected to an inner wall of the water passage 104 and abutting against the bristle part 106, the scraping plate 108 and the inner wall of the water passage 104 form a guide passage communicating with the dirt storage tank 107, and the bristle part 106 rotates relative to the scraping plate 108 to allow dirt collected by the bristle part 106 to enter the dirt storage tank 107 via the guide passage.

Scrape the board 108 and can scrape filth such as the plastic bag that brush hair portion 106 collected from brush hair portion 106, because the rotary motion of brush hair portion 106, filth such as plastic bag is followed brush hair portion 106 and is rotated, the filth that the back scraping got off can extrude the filth that gets off scraping earlier, thereby the filth that the scraping got off gets into in the dirty case 107 of storage through the direction passageway that scraping board 108 and water channel 104's inner wall formed, thereby dirty case 107 of storage can be stored filth such as the plastic bag, and then avoid in the plastic bag gets into the sewer, the condition that influences the drainage efficiency of sewer takes place.

Referring to fig. 1, in one embodiment of the present application, the inner wall of the water passage 104 is provided with a spiral protrusion 114 to enable the water flow to proceed spirally, and the tip of the spiral protrusion 114 faces the guide passage.

By the way that the tail end of the spiral protrusion 114 faces the guide channel, the spirally advancing water flow can more easily enter the guide channel, so that the water flow can flush the dirt such as plastic bags into the dirt storage tank 107.

Referring to fig. 3, in one embodiment of the present application, the scraping plate 108 is provided with first through holes 109, and water can pass through the first through holes 109, so that water in the guide passage can enter the water passage 104 through the first through holes 109.

Through the mode that sets up first through-hole 109, when rivers strike scraping plate 108, rivers can pass through scraping plate 108 through first through-hole 109 to hydroenergy in the guiding channel can pass scraping plate 108 through first through-hole 109, thereby can effectually alleviate the phenomenon that rivers take place the refluence when striking scraping plate 108, avoid the refluence to wrap up in filths such as plastic bag and enter into the sewer through water passage 104.

Referring to fig. 4, it can be understood by those skilled in the art of the present application that the dirt storage tank 107 can be disposed outside the water collection cylinder 101 or inside the water collection cylinder 101, the wall of the dirt storage tank 107 is provided with a second through hole 110 (see fig. 4), and water in the dirt storage tank 107 can enter the sewer or the water passing channel 104 through the second through hole 110, so as to avoid water accumulation in the dirt storage tank 107, and odor generation in the dirt storage tank 107 occurs over time; meanwhile, the phenomenon of backflow generated when water flow impacts the inner cavity of the sewage storage tank 107 can be effectively reduced, so that the situation that sewage such as plastic bags are wrapped by the backflow to enter the water passing channel 104 through the guide channel and then enter a sewer is avoided.

Referring to fig. 1, in one embodiment of the present application, the low-lying drain further comprises a collecting tank 116 detachably connected to an end of the water collecting cylinder 101 provided with the first outlet 103, an inlet of the collecting tank 116 is communicated with the first outlet 103, the collecting tank 116 is provided with an outlet hole communicated with an inner cavity thereof, so that the liquid in the inner cavity of the collecting tank 116 can leave the collecting tank 116 through the outlet hole, and the outlet hole is provided in plurality.

Through the mode that sets up collecting box 116, can further filter the filterable rivers of portion 106 through the brush hair, collecting box 116 can filter and collect solid such as stone to improve the clean effect to rivers, avoid solid such as stone to occupy the space of sewer.

The above description is only an embodiment of the present application, and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A drain device for a low-lying place is characterized by comprising,

the water collecting device comprises a water collecting barrel, a water collecting barrel and a water collecting device, wherein one end of the water collecting barrel is provided with a first inlet, the other end of the water collecting barrel is provided with a first outlet, and the water collecting barrel is also provided with a water passing channel communicated with the first inlet and the first outlet;

the cleaning module comprises an impacted fan blade arranged at the first outlet and a brush hair part arranged in the water passing channel, water flow entering through the first inlet can pass through the water passing channel and impact the impacted fan blade at the first outlet so as to enable the impacted fan blade to rotate, and the impacted fan blade can drive the brush hair part to synchronously rotate so as to enable the brush hair part to collect dirt;

the brushing part comprises a plurality of layers of first brushing parts, and the first brushing parts of all layers are arranged at intervals along the axial direction of the water collecting barrel;

the brush hair portion is round platform form, brush hair portion with the water collecting barrel is coaxial to be set up, follows first import points to the direction of first export, the cross-sectional area of brush hair portion reduces gradually.

2. A low-lying drain according to claim 1,

the low-lying drainage device further comprises a dirt storage box and a scraping plate connected to the inner wall of the water passing channel and abutted to the brushing portion, the scraping plate and the inner wall of the water passing channel form a guide channel communicated with the dirt storage box, and the brushing portion is opposite to the scraping plate and rotates to enable dirt collected by the brushing portion to enter the dirt storage box through the guide channel.

3. A low-lying drain according to claim 2,

the inner wall of the water passing channel is provided with a spiral protrusion so that water flow can advance spirally, and the tail end of the spiral protrusion faces the guide channel.

4. A low-lying drain according to claim 2,

the scraping plate is provided with a first through hole, the dirt storage tank is arranged outside the water collecting barrel, the tank wall of the dirt storage tank is provided with a second through hole, and water flow can pass through the first through hole and/or the second through hole.

5. A low-lying drain according to claim 3,

the rushed fan blades are provided with rushed parts, and water flow advancing spirally can impact the rushed parts.

6. A low-lying drain according to claim 1,

the shape of water passing channel is round platform form, follows first import points to the direction of first export, water passing channel's cross section reduces gradually.

7. A low-lying drain according to claim 1,

the low-lying drainage device further comprises a shunting cover arranged opposite to the first inlet, the shunting cover is connected with the brushing part, the axis of the water collecting cylinder is arranged, the first outlet points to the direction of the first inlet, and the cross section area of the shunting cover is gradually reduced.

8. A depressed drain device as claimed in claim 1, further comprising a collecting chamber detachably connected to an end of the water collecting cylinder where the first outlet is provided, an inlet of the collecting chamber being in communication with the first outlet, the collecting chamber being provided with an outlet hole communicating with an internal cavity thereof so that liquid in the internal cavity of the collecting chamber can exit the collecting chamber through the outlet hole, the outlet hole being provided in plural.