Summary of the invention
Technical problem:
Traditional well lid is directly opened in flood control and water drain, so that well head is in full open position, then under solid refuse can enter
Water channel hinders the circulation of rainwater, and drainage efficiency is low, and when well lid opening, Yi Fasheng pedestrian accidentally falls the unsafe accident in well,
And influence traffic.
To solve the above problems, this example devises one kind based on flood control safety well cover for sewer system, one kind of this example
Well lid is equipped with based on flood control safety well cover for sewer system, including subterranean layer, in the subterranean layer and turns chamber, and the well lid turns chamber
It is interior that flipping block is equipped with by the rotation of well lid shaft, it is equipped in the subterranean layer and turns to communicate on the right side of chamber equipped with well lid in the well lid
Chamber, the well lid is intracavitary to be equipped with well lid, and the well lid left end and the flipping block are connected, and flowing lumen, institute are equipped in the well lid
It states and is equipped with circulation closing device in flowing lumen, the circulation closing device is in sealing state and draining for controlling the well lid
State, the circulation closing device downside are equipped with garbage cleaning device, connect between side and the well lid chamber before and after the flowing lumen
Logical to be equipped with cleaning chamber, the cleaning chamber and the garbage cleaning device are located at same horizontal line, the garbage cleaning device downside
Equipped with filtering regulating device, the filtering regulating device may filter that the solid refuse in the sewage to circulate in the flowing lumen, and
It is by the garbage cleaning device that the cleaning of rubbish push-in front and back is intracavitary, it is equipped with water flow velocity on the right side of the flowing lumen and detects
Device, the water flow speed detector can control the speed of the filtering water of the filtering regulating device, the well lid chamber downside
The drainage cavity for being equipped with and being connected to extraneous drainage system is communicated, the well lid chamber front-rear position is symmetrically equipped with refuse collector,
The intracavitary rubbish of the cleaning, which enters in the refuse collector, to be collected;When flood control and water drain, the circulation closing device work
The flowing lumen is opened, then rainwater flows into the flowing lumen, is filtered by the filtering regulating device, filtered solid
Rubbish is removed by the garbage cleaning device to being collected in the water flow speed detector.
It may be preferred that the diameter of the drainage cavity is less than well lid diameter, effect is that the well lid is intracavitary in the well lid
Mounting stability, avoid the well lid from being pressurized and voluntarily overturn or sagging problem, improve the safety of the well lid.
Wherein, the circulation closing device includes that fixing axle is arranged in five interradicular spaces, and described fixing axle or so end is fixed respectively
Have in being equipped with six roots of sensation sealing axis in the flowing lumen inner end wall, between the fixing axle, the sealing axis and the fixing axle can
It slides, sealing axis or so end described in the six roots of sensation is installed with link block respectively, and the flowing lumen outside, which communicates to be equipped with, goes up and down chamber, the liter
Drop it is intracavitary be equipped with ring block, the link block close to it is described lifting chamber one end and the ring block be connected, it is described lifting it is intracavitary
Rotation is equipped with symmetrical lead screw, and the lead screw is threadedly coupled with the ring block, communicates on the upside of the lifting chamber and is equipped with half
Circular belt chamber, the belt is intracavitary to be uniformly provided with belt pulley, is connected by power between the belt pulley by belt, left and right
The upper end of the lead screw is connected with the belt pulley of left and right sides respectively, and the belt pulley upper end wall is installed with power motor, left
The lead screw upper end of side is connected by power in the power motor, and the right side lead screw upper end and the water flow speed detector are dynamic
Power connection;The circulation closing device works so that sealing axis decline is detached from the fixing axle, then rainwater can pass through institute
State flowing lumen circulation.
It may be preferred that the width of the sealing axis between the adjacent fixing axle is equal to this adjacent described fixing axle
The distance between, the width of the sealing axis between the fixing axle of front side and the flowing lumen front bulkhead is equal to described in this
The distance between fixing axle front end face and the flowing lumen front bulkhead, the fixing axle of rear side and the flowing lumen aft bulkhead it
Between the sealing axis width be equal to the distance between this described fixing axle rear end face and the flowing lumen aft bulkhead, act on
Be, the sealing axis and the fixing axle be staggered grafting when, the flowing lumen can be sealed, so that the well lid upper surface and institute
It states that subterranean layer upper surface is concordant, improves the planarization and aesthetics of road.
Wherein, the garbage cleaning device includes the cleaning turn trough communicated with the flowing lumen, is turned in the cleaning turn trough
It is dynamic to be equipped with cleaning shaft, it is installed with torsional spring in the cleaning shaft, it is fixed in the torsional spring upper side position in the cleaning shaft
There is channel washer, telescopic chute is equipped in the channel washer, sliding is equipped with telescopic rod, the telescopic rod left end and institute in the telescopic chute
It states and is installed with adjustable spring between telescopic chute, communicated on the upside of the cleaning turn trough and be equipped with engagement chamber, the cleaning shaft upper end is stretched
It is intracavitary and be installed with meshing gear to enter the engagement, the meshing gear left end engagement is connected with the irregular of half tooth form
Gear is installed with rotary gear shaft at the irregular gear axis, and the engagement chamber lower end wall is equipped with rotary electric machine, the tooth
Wheel shaft lower end is connected by power in the rotary electric machine;Garbage cleaning device work can drive the channel washer and described stretch
Contracting bar swing, the filtered solid refuse push-in cleaning of the filtering regulating device is intracavitary, thus by described
Refuse collector is collected.
It may be preferred that the channel washer and the telescopic rod lower end surface are installed with steel brush, the institute of the telescopic rod lower end surface
It states that steel brush is short, and the steel brush left end on right side is greater than the length of the telescopic chute to the distance of the channel washer right end, makees
With being that when the telescopic rod is contracted in the telescopic chute, the steel brush on right side will not stop the contraction of the telescopic rod, mention
The harmony of high device.
Wherein, the filtering regulating device includes the annular chamber communicated with the flowing lumen, and rotation is set in the annular chamber
There is ring gear, the ring gear inner end wall is uniformly fixed there are four fixed shifting block, and the flowing lumen is interior to be equipped with mounting blocks, institute
It states mounting blocks periphery to be installed in criss-cross four support rods, the support rod other end and the flowing lumen inner end wall are solid
Even, fixed on the mounting blocks there are four fixed links, and the fixed link is far from described mounting blocks one end and the annular chamber lower end
Wall is connected, and is hingedly set on the mounting blocks there are four rotating bar, and the rotating bar other end protrudes into the annular chamber, and described turn
Flexible barrier cloth is installed between lever and the fixed link adjacent clockwise, the barrier cloth is far from described
Mounting blocks side is equipped with compression spring, and the compression spring both ends are connected with the fixed link and the rotating bar respectively, described
Folding screen pack there are five setting, the annular chamber are rotated between rotating bar and the counterclockwise adjacent fixed link
Right side is communicated equipped with driving groove, and rotation is equipped with transmission gear in the driving groove, and the transmission gear is nibbled with the ring gear
It closes;The ring gear rotation pushes the rotating bar to rotate by the fixed shifting block, and the screen pack is in unfolded state
When, the dmp filter speed block in the flowing lumen, when the screen pack folds, the barrier cloth is unfolded, then dmp filter
Speed is slow, and the water flow speed detector can control the rotational angle of the ring gear, to control the speed of dmp filter.
Turn trough is folded it may be preferred that being equipped in the screen pack, rotation, which is equipped with, in the folding turn trough folds bull stick, institute
It states to fold and is installed with folding switch block on bull stick, the folding switch block in a upper screen pack and the adjacent filtering
Web plate is connected, then the rotating bar rotation can will fold or is unfolded between the screen pack.
Wherein, the water flow speed detector includes that sealing turns chamber, and the sealing turns chamber and communicates with the belt chamber, right side
The lead screw upper end protrude into the sealing and turn intracavitary and be installed with rotor plate, the rotor plate right end is installed with sealing plate, institute
It states sealing to turn to communicate on the downside of chamber equipped with test chamber, is communicated in the wall of the test chamber left end and be equipped with the chamber that tests the speed, before and after the chamber that tests the speed
It is installed with rotation axis between end wall, fast pulley is installed in the rotation axis, the fast pulley periphery is fixed, and there are six flabellum, institutes
Stating the flabellum other end can protrude into the test chamber, and the fast pulley front end face is installed with first bevel gear, the first cone tooth
The engagement of wheel front end is connected with second bevel gear, is installed with transmission shaft at the second bevel gear axle center, the transmission shaft lower end with
The transmission gear is connected;When the rainwater circulation test chamber, the flabellum decline, the successive fortune of six flabellums will push
Moving can drive the fast pulley to rotate, and then the rotation of the ring gear is controlled by the transmission shaft.
Wherein, the refuse collector includes the collecting chamber communicated with the outside world, the collecting chamber and the well lid chamber phase
It is logical, filtering table is installed in the collecting chamber, the collecting chamber is communicated far from well lid chamber one end equipped with sliding cavity, the cunning
It moves intracavitary sliding and is equipped with closing slip lid, be installed between described closing slip lid one end and the sliding cavity far from the well lid chamber
Reset spring;Solid refuse in the flowing lumen is input in the collecting chamber by the cleaning chamber to be collected, and is opened thereafter
The closing slip lid is by manually taking out.
The beneficial effects of the present invention are: manhole cover system of the invention is turnably opened, staff go into the well work when behaviour
Facilitate, secondly, being provided with fixing axle in well lid, when well lid is in flood control state, rainwater is negotiable and fixing axle can ensure well lid
Upper pedestrains safety, and volume object does not enter in sewer for fixing axle barrier, in addition, the filtering regulating device of the setting in well lid
The rate of filtration can be adjusted according to the size of rainwater flow, and filtered solid refuse unifies collection processing, this well lid
System automation operation, controls flood high-efficient, highly-safe.
Specific embodiment
Below with reference to Fig. 1-Fig. 9, the present invention is described in detail, for sake of convenience, now provides to hereafter described orientation
As follows: hereafter described front-rear direction up and down is consistent with the front-rear direction up and down of Fig. 1 projection relation itself.
The present invention relates to one kind to be based on flood control safety well cover for sewer system, is mainly used for well lid safety drain in flood control
Work, below in conjunction with attached drawing of the present invention, the present invention will be further described:
It is of the present invention it is a kind of be based on flood control safety well cover for sewer system, including subterranean layer 10, in the subterranean layer 10
Turn chamber 11 equipped with well lid, the well lid, which turns to rotate in chamber 11 by well lid shaft 12, is equipped with flipping block 13, in the subterranean layer 10
Equipped with turning to be communicated on the right side of chamber 11 equipped with well lid chamber 14 in the well lid, the well lid chamber 14 is interior to be equipped with well lid 15, the well lid 15
Left end and the flipping block 13 are connected, and flowing lumen 16 is equipped in the well lid 15, and circulation folding dress is equipped in the flowing lumen 16
601 are set, the circulation closing device 601 is in sealing state and hull-borne for controlling the well lid 15, and the circulation is opened
It attaches together and sets 601 downsides equipped with garbage cleaning device 602, be connected to and be equipped between the 16 front and back side of flowing lumen and the well lid chamber 14
Chamber 53 is cleared up, the cleaning chamber 53 is located at same horizontal line, the garbage cleaning device 602 with the garbage cleaning device 602
Downside is equipped with filtering regulating device 603, and the filtering regulating device 603 may filter that in the sewage to circulate in the flowing lumen 16
Solid refuse, and rubbish is pushed into the cleaning chamber 53 of front and back by the garbage cleaning device 602, the flowing lumen 16
Right side is equipped with water flow speed detector 604, and the water flow speed detector 604 can control the mistake of the filtering regulating device 603
The speed of drainage amount communicates the drainage cavity 74 for being equipped with and being connected to extraneous drainage system, the well lid chamber on the downside of the well lid chamber 14
14 front-rear positions are symmetrically equipped with refuse collector 605, and the rubbish in the cleaning chamber 53 enters the refuse collector
It is collected in 605;When flood control and water drain, the flowing lumen 16 is opened in the work of circulation closing device 601, then described in rainwater inflow
It in flowing lumen 16, is filtered by the filtering regulating device 603, filtered solid refuse passes through the garbage cleaning device
It is collected in 602 removings to the water flow speed detector 604.
Valuably, the diameter of the drainage cavity 74 is less than 15 diameter of well lid, and effect is that the well lid 15 is in the well lid
Mounting stability in chamber 14, the problem for avoiding the compression of well lid 15 from voluntarily overturning or sink, improves the peace of the well lid 15
Quan Xing.
According to embodiment, following convection current is led to closing device 601 and is described in detail, and the circulation closing device 601 includes
Five interradicular spaces are arranged fixing axle 17, and the fixing axle 17 or so end is installed with respectively in 16 inner end wall of flowing lumen, described
It is equipped with the six roots of sensation between fixing axle 17 and seals axis 18, the sealing axis 18 slidably, seals axis with the fixing axle 17 described in the six roots of sensation
18 or so ends are installed with link block 19 respectively, communicate on the outside of the flowing lumen 16 and are equipped with lifting chamber 20, set in the lifting chamber 20
There is ring block 21, the link block 19 is connected close to one end of the lifting chamber 20 and the ring block 21, the lifting chamber 20
Interior rotation is equipped with symmetrical lead screw 26, and the lead screw 26 is threadedly coupled with the ring block 21,20 upside of lifting chamber
It communicates and is equipped with semicircular belt chamber 22, be uniformly provided with belt pulley 23 in the belt chamber 22, pass through between the belt pulley 23
Belt 24 is connected by power, and the upper end of the lead screw 26 of left and right is connected with the belt pulley 23 of left and right sides respectively, the belt
It takes turns 23 upper end walls and is installed with power motor 25,26 upper end of the lead screw in left side is connected by power in the power motor 25, right side
26 upper end of lead screw is connected by power with the water flow speed detector 604;The work of circulation closing device 601 is so that described
It seals the decline of axis 18 to be detached from the fixing axle 17, then rainwater can be circulated by the flowing lumen 16.
Valuably, the width of the sealing axis 18 between the adjacent fixing axle 17 is equal to this adjacent described fixation
The distance between axis 17, the width of the sealing axis 18 between 16 front bulkhead of the fixing axle 17 and the flowing lumen of front side
Equal to the distance between 17 front end face of fixing axle described in this and 16 front bulkhead of flowing lumen, the fixing axle 17 of rear side and institute
The width for stating the sealing axis 18 between 16 aft bulkhead of flowing lumen is equal to this described 17 rear end face of fixing axle and the flowing lumen
The distance between 16 aft bulkheads, effect be, the sealing axis 18 and the fixing axle 17 be staggered grafting when, can be by the circulation
Chamber 16 seals, so that 15 upper surface of the well lid is concordant with 10 upper surface of subterranean layer, improves the planarization and beauty of road
Property.
According to embodiment, garbage cleaning device 602 is described in detail below, the garbage cleaning device 602 includes
The cleaning turn trough 54 communicated with the flowing lumen 16, the interior rotation of the cleaning turn trough 54 are equipped with cleaning shaft 55, the cleaning turn
It is installed with torsional spring 61 on axis 55, is installed with channel washer 56 in 61 upper side position of torsional spring in the cleaning shaft 55, it is described clear
Telescopic chute 57 is equipped in clean bar 56, sliding is equipped with telescopic rod 58 in the telescopic chute 57, and 58 left end of telescopic rod is stretched with described
It is installed with adjustable spring 59 between contracting slot 57, is communicated on the upside of the cleaning turn trough 54 and is equipped with engagement chamber 62, the cleaning shaft 55
Meshing gear 63 is protruded into the engagement chamber 62 and be installed in upper end, and 63 left end of the meshing gear engagement is connected with half
The irregular gear 64 of tooth form is installed with rotary gear shaft 65,62 lower end wall of engagement chamber at irregular 64 axle center of gear
Rotary electric machine 66 is installed, 65 lower end of rotary gear shaft is connected by power in the rotary electric machine 66;The garbage cleaning device
602 work can drive 58 swing of the channel washer 56 and the telescopic rod, and the filtering regulating device 603 is filtered
Solid refuse is pushed into the cleaning chamber 53, to be collected by the refuse collector 605.
Valuably, the channel washer 56 and 58 lower end surface of the telescopic rod are installed with steel brush 60,58 lower end of telescopic rod
The steel brush 60 in face is short, and the distance of 60 left end of the steel brush on right side to 56 right end of channel washer is greater than the telescopic chute
57 length, effect is that when the telescopic rod 58 is contracted in the telescopic chute 57, the steel brush 60 on right side will not stop
The contraction of the telescopic rod 58, improves the harmony of device.
According to embodiment, filtering regulating device 603 is described in detail below, the filtering regulating device 603 includes
The annular chamber 41 communicated with the flowing lumen 16, the interior rotation of the annular chamber 41 are equipped with ring gear 42, the ring gear 42
Inner end wall is uniformly fixed there are four fixed shifting block 43, and the flowing lumen 16 is interior to be equipped with mounting blocks 47, and 47 periphery of mounting blocks is solid
Equipped with being in criss-cross four support rods 48,48 other end of support rod and 16 inner end wall of flowing lumen are connected, the peace
Fixed on dress block 47 there are four fixed links 44, and the fixed link 44 is far from described 47 one end of mounting blocks and 41 lower end of annular chamber
Wall is connected, and is hingedly set on the mounting blocks 47 there are four rotating bar 45,45 other end of rotating bar protrudes into the annular chamber 41
It is interior, flexible barrier cloth 46, institute are installed between the rotating bar 45 and the fixed link 44 adjacent clockwise
State barrier cloth 46 far from 47 side of mounting blocks be equipped with compression spring 80,80 both ends of compression spring respectively with the fixation
Bar 44 and the rotating bar 45 are connected, and rotate and are equipped between the rotating bar 45 and the counterclockwise adjacent fixed link 44
Five folding screen packs 49 communicate on the right side of the annular chamber 41 equipped with driving groove 39, and rotation is set in the driving groove 39
There is transmission gear 40, the transmission gear 40 is engaged with the ring gear 42;The rotation of ring gear 42 passes through described solid
Determining shifting block 43 pushes the rotating bar 45 to rotate, the rainwater when screen pack 49 is in unfolded state, in the flowing lumen 16
Rate of filtration block, when the screen pack 49 folds, the barrier cloth 46 is unfolded, then dmp filter speed is slow, the water flow velocity
Detection device 604 can control the rotational angle of the ring gear 42, to control the speed of dmp filter.
Valuably, it is equipped in the screen pack 49 and folds turn trough 50, rotation is equipped with folded turning in the folding turn trough 50
Bar 51 is installed on the folding bull stick 51 and folds switch block 52, the folding switch block 52 in a upper screen pack 49
It is connected with the adjacent screen pack 49, then the rotation of rotating bar 45 can will be folded or be opened up between the screen pack 49
It opens.
According to embodiment, water flow speed detector 604 is described in detail below, the water flow speed detector 604
Turn chamber 27 including sealing, the sealing turns chamber 27 and communicates with the belt chamber 22, and 26 upper end of the lead screw on right side is protruded into described
Sealing turns in chamber 27 and is installed with rotor plate 28, and 28 right end of rotor plate is installed with sealing plate 29, and the sealing turns under chamber 27
Side is communicated equipped with test chamber 30, is communicated in the 30 left end wall of test chamber and is equipped with the chamber 32 that tests the speed, the 32 front and back end wall of chamber that tests the speed
Between be installed with rotation axis 36, be installed with fast pulley 33 in the rotation axis 36,33 periphery of fast pulley is fixed, and there are six fans
Leaf 34,34 other end of flabellum can protrude into the test chamber 30, and 33 front end face of fast pulley is installed with first bevel gear
35,35 front end of the first bevel gear engagement is connected with second bevel gear 37, is installed with biography at 37 axle center of second bevel gear
Moving axis 38,38 lower end of transmission shaft and the transmission gear 40 are connected;When the rainwater circulation test chamber 30, it will push described
Flabellum 34 declines, and the successive movements of six flabellums 34 can drive the fast pulley 33 to rotate, and then passes through the transmission shaft
The rotation of the 38 control ring gears 42.
According to embodiment, refuse collector 605 is described in detail below, the refuse collector 605 includes
The collecting chamber 68 communicated with the outside world, the collecting chamber 68 are communicated with the well lid chamber 14, are installed with filtering in the collecting chamber 68
Disk 70, the collecting chamber 68 are communicated far from described 14 one end of well lid chamber equipped with sliding cavity 72, and the interior sliding of the sliding cavity 72 is equipped with
Slip lid 71 is closed, is installed with reset bullet between described closing slip lid 71 one end and the sliding cavity 72 far from the well lid chamber 14
Spring 73;Solid refuse in the flowing lumen 16 is input in the collecting chamber 68 by the cleaning chamber 53 to be collected, and is beaten thereafter
The closing slip lid 71 is opened by manually taking out.
Below in conjunction with Fig. 1 to Fig. 9 to use step of one of this paper based on flood control safety well cover for sewer system
It is described in detail:
When initial, fixing axle 17 abuts with sealing axis 18 and seals flowing lumen 16, and the upper surface of fixing axle 17 and sealing axis 18
It is concordant with 10 upper surface of subterranean layer, it ensures the smooth of road surface, is convenient for daily passage, channel washer 56 drives telescopic rod 58 to rotate backward
To extreme angles, in the raw, the screen pack 49 between adjacent fixed link 44 folds torsional spring 61 at this time, this
When barrier cloth 46 in expansion shape, compression spring 80 be in nature placement status, then when this state, filtering 603 device of regulating device
The rate of filtration it is minimum, rainwater only passes through 49 gap of the screen pack circulation folded, 29 sealing detection chamber 30 of sealing plate,
Guarantee 29 upper surface of sealing plate is smooth with 10 upper surface of subterranean layer, convenient for passing through.
Flood control rotates the lead screw 26 of left and right by belt 24, then under ring block 21 in use, the work of power motor 25
Drop is declined by link block 19 with dynamic sealing axis 18, then fixing axle 17 is separated with sealing axis 18, and the gap between fixing axle 17 can
So that rainwater circulates in chamber 16, and fixing axle 17 may make flowing lumen 16 negotiable but endless Full-open, ensure current
Personnel safety and by the barrier of the article rubbish of large volume in 17 upper surface of fixing axle, the draining that avoids obstruction from being connected to drainage cavity 74
System in 26 rotation process of lead screw, drives sealing plate 29 to rotate by rotor plate 28, then test chamber 30 is opened, and rainwater enters liter
It drops in chamber 20, flabellum 34 is pushed to decline, the successive movements of six flabellums 34 can drive fast pulley 33 to rotate, and then pass through transmission shaft
The rotation of 38 control ring gears 42, the then rotation of transmission gear 40 drive ring gear 42 to rotate, and are stirred by fixed shifting block 43
Rotating bar 45 rotates, then screen pack 49 is unfolded, and obstructs cloth 46 at this time and shrinks, filters the filtering of 603 device of regulating device at this time
Speed gradually increases, and compression spring 80 is in the state that gradually reduces, and the water flow in test chamber 30 is bigger, then flabellum 34 drives solid
33 velocity of rotation of fixed wheel gets over block, so that the angle that ring gear 42 rotates is bigger, thus the expansion between screen pack 49
Area is bigger, and barrier 46 area of cloth is smaller, then the rate of filtration of screen pack 49 gets over block, wherein all expansion of screen pack 49
When, the rate of filtration is maximum, and compression spring 80 is in compressive state at this time, then the water flow in test chamber 30 reduces, so that annular
When gear 42 rotates backward, rotating bar 45 can invert under the elastic restoring force of compression spring 80, so that screen pack 49 is shunk
Reducing the rate of filtration, solid refuse is located at 49 upper surface of screen pack, and the irregular gear 64 of 66 task driven of rotary electric machine rotates,
Then 63 intermittent rotary of meshing gear, when irregular gear 64 is engaged with meshing gear 63, channel washer 56 and telescopic rod 58 are to front side
Rotation enters thereafter in the collecting chamber 68 of front side and collects, no by steel brush 60 by the cleaning chamber 53 of solid refuse push-in front side
When regular gear 64 is disengaged from meshing gear 63, inverted under the elastic restoring force of torsional spring 61, channel washer 56 and telescopic rod
58 rotate in the collecting chamber 68 that solid refuse is pushed into rear side to rear side, and then channel washer 56 and telescopic rod 58 are reciprocally swung clearly
Rubbish is managed, solid refuse enters in collecting chamber 68 and filters by filtering table 70, and opening closing slip lid 71 can will be in collecting chamber 68
Garbage reclamation when staff needs to carry out in tripping in drainage cavity 74 underground work, well lid 15 can be turned around well lid thereafter
12 rotating opening drainage cavity 74 of axis, convenient for going into the well.
The beneficial effects of the present invention are: manhole cover system of the invention is turnably opened, staff go into the well work when behaviour
Facilitate, secondly, being provided with fixing axle in well lid, when well lid is in flood control state, rainwater is negotiable and fixing axle can ensure well lid
Upper pedestrains safety, and volume object does not enter in sewer for fixing axle barrier, in addition, the filtering regulating device of the setting in well lid
The rate of filtration can be adjusted according to the size of rainwater flow, and filtered solid refuse unifies collection processing, this well lid
System automation operation, controls flood high-efficient, highly-safe.
In the above manner, those skilled in the art can be made within the scope of the invention according to operating mode it is various
Change.