CN212873286U - Automatic control device for liquid level of comprehensive wastewater pool of sewage treatment station - Google Patents

Automatic control device for liquid level of comprehensive wastewater pool of sewage treatment station Download PDF

Info

Publication number
CN212873286U
CN212873286U CN202022045100.XU CN202022045100U CN212873286U CN 212873286 U CN212873286 U CN 212873286U CN 202022045100 U CN202022045100 U CN 202022045100U CN 212873286 U CN212873286 U CN 212873286U
Authority
CN
China
Prior art keywords
fixedly connected
wastewater
plate
disposal basin
sewage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202022045100.XU
Other languages
Chinese (zh)
Inventor
马明蔚
曹光春
徐世利
魏福康
马新功
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Zhongze Environmental Protection Technology Co ltd
Original Assignee
Qingdao Zhongze Environmental Protection Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Zhongze Environmental Protection Technology Co ltd filed Critical Qingdao Zhongze Environmental Protection Technology Co ltd
Priority to CN202022045100.XU priority Critical patent/CN212873286U/en
Application granted granted Critical
Publication of CN212873286U publication Critical patent/CN212873286U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Sewage (AREA)

Abstract

The utility model discloses a wastewater treatment station synthesizes wastewater disposal basin liquid level automatic control device relates to sewage treatment technical field, and it includes the wastewater disposal basin, wastewater disposal basin left surface fixedly connected with advances dirty pipe. This wastewater disposal basin liquid level automatic control device is synthesized at sewage treatment station, through the kickboard, the restriction pole, the reference column, the jack-up piece, the jacking board, the limiting plate, the warning post, the reference column, three to the upward movements of connecting rod, connecting rod three, connecting rod two, a supporting seat, connecting rod one, the fly leaf, the sliding tray, a spring, the pull rope, the leading wheel, the live-rollers, control column and torsional spring drive control valve are with sewage inlet pipe self-closing, thereby solved present great majority sewage integrated processing station and not considered the information transfer between workshop and the sewage treatment station and then lead to the staff often need go to observe the problem that the sewage liquid level in the integrated wastewater basin leads to staff's work load increase to a certain extent.

Description

Automatic control device for liquid level of comprehensive wastewater pool of sewage treatment station
Technical Field
The utility model relates to a sewage treatment technical field specifically is a wastewater disposal basin liquid level automatic control device is synthesized at sewage treatment station.
Background
Sewage treatment (sewerage treatment) is a process of purifying sewage to meet the requirement of discharging the sewage into a certain water body or reusing water quality, is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and increasingly enters daily life of common people, a comprehensive wastewater tank of a sewage treatment station is a place where various kinds of sewage are comprehensively placed, then a water pump in the comprehensive wastewater tank is used for pumping the comprehensive sewage into the wastewater treatment tank to perform standard discharge treatment on the comprehensive sewage, but most of the existing sewage treatment stations do not consider information transmission between a workshop and the sewage treatment station, so that workers often need to observe the height of the liquid level of the sewage in the comprehensive wastewater tank to prevent the liquid level in the comprehensive wastewater tank from overflowing the comprehensive wastewater tank to pollute the sewage treatment station, therefore, the workload of workers is increased to a certain extent, and the automatic control device for the liquid level height of the comprehensive wastewater pool of the sewage treatment station is provided to solve the problem.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a to prior art not enough, the utility model provides a wastewater treatment station synthesizes wastewater disposal basin liquid level automatic control device has solved most sewage comprehensive treatment station now and has not considered the information transfer between workshop and the wastewater treatment station and then lead to the staff often to go to observe the problem that the sewage liquid level in the wastewater disposal basin synthesized leads to staff's work load to a certain extent to increase.
(II) technical scheme
In order to achieve the above purpose, the utility model adopts the technical proposal that: an automatic control device for the liquid level of a comprehensive wastewater pool of a sewage treatment station comprises a wastewater pool, wherein a wastewater inlet pipe is fixedly connected to the left side surface of the wastewater pool, a control valve is fixedly connected to the wastewater inlet pipe, a control column is fixedly connected to the control valve, one end of a torsion spring is fixedly connected to the side surface of a connecting disc fixedly connected to the control column, the other end of the torsion spring is fixedly connected to the lower side surface of a supporting plate, the supporting plate is fixedly connected to the left side surface of the wastewater pool, a rotating roller is fixedly connected to the upper end of the control column through a movable hole formed in the supporting plate, one end of a pulling rope is fixedly connected to the rotating roller, the other end of the pulling rope penetrates through a guide wheel and a fixed plate and is fixedly connected to the lower side surface of a movable plate, the fixed plate is fixedly connected to the left side surface of the, the left end of the movable plate is movably connected with a limiting post, the lower end of the limiting post is fixedly connected on the upper side surface of the fixed plate, the limiting post is sleeved with a spring, the upper end and the lower end of the spring are respectively and fixedly connected with the opposite surfaces of the movable plate and the fixed plate, the upper side surface of the movable plate is hinged with a first connecting rod, the upper end of the first connecting rod is hinged with a second connecting rod, the center of the second connecting rod is hinged with the supporting seat through a pin shaft, the supporting seat is fixedly connected on the upper surface of the left side of the wastewater pool, the right end of the second connecting rod is hinged with a third connecting rod, the lower ends of the three connecting rods are hinged with a jacking plate, the right side of the jacking plate is movably connected with a positioning column, the lower end of the positioning column is fixedly connected with the left end of the upper side surface of the floating plate, the left side of the positioning column is provided with a jacking block which is fixedly connected on the upper surface of the left end of the floating plate, the floating plate is movably connected to the limiting rod, and the lower end of the limiting rod is fixedly connected to the inner wall of the lower side of the wastewater pool.
Preferably, the right end of the upper surface of the floating plate is fixedly connected with a warning rod, the upper end of the warning rod penetrates through a limiting plate fixedly connected with a warning flag, and the limiting plate is fixedly connected to the right side face of the positioning column.
Preferably, the rear side face of the warning flag is provided with a reference plate, the reference plate is fixedly connected to the rear side face of the wastewater pool, and the reference plate is arranged corresponding to a master control room of the sewage treatment station.
Preferably, the gag lever post right-hand member is provided with the overflow pipe, the high critical point setting of wastewater disposal basin is corresponded to the overflow pipe upper end, the overflow pipe passes through connecting ring fixed connection on wastewater disposal basin rear side inner wall, the overflow pipe right-hand member passes wastewater disposal basin right side wall and temporary storage case left side wall setting in temporary storage case.
Preferably, case left surface fixed connection is kept in on the wastewater disposal basin left surface, two supporting shoes of case downside fixedly connected with are kept in, and are provided with the blow off pipe between two supporting shoes, the blow off pipe left end sets up in the wastewater disposal basin.
Preferably, the lower end of the right side surface of the temporary storage box is fixedly connected with one end of a connecting pipe, the other end of the connecting pipe is communicated with a sewage discharge pipe, and a valve is arranged on the connecting pipe.
(III) advantageous effects
The beneficial effects of the utility model reside in that:
the automatic control device for the liquid level of the comprehensive wastewater pool of the sewage treatment station remotely reminds workers through the floating plate, the limiting rod, the warning rod, the limiting plate and the reference plate, the floating plate, the limiting rod, the positioning column, the jacking block, the jacking plate, the limiting plate, the warning column, the positioning column and the connecting rod move upwards through the floating plate, the limiting rod, the positioning column, the jacking block, the jacking plate, the limiting plate, the warning column, the positioning column and the connecting rod, the connecting rod III, the connecting rod II, the supporting seat, the connecting rod I, the movable plate, the sliding groove, the spring, the pulling rope, the guide wheel, the rotating roller, the control column and the torsional spring drive the control valve to close the sewage inlet pipe, further, the situation that the liquid level in the wastewater pool overflows the wastewater pool to pollute the environment of the sewage treatment station is avoided, if a small amount of sewage overflows, the sewage is discharged into the temporary storage box through the overflow pipe, then the sewage in the, thereby solved present most sewage comprehensive treatment station and not considered the information transfer between workshop and the sewage treatment station and then lead to the staff often to go to observe thereby the problem that the sewage liquid level height in the comprehensive waste water pond leads to staff's work load to a certain extent to increase.
Drawings
FIG. 1 is a schematic view of the front view of the partial cross-section structure of the present invention;
FIG. 2 is a schematic front view of the present invention;
fig. 3 is a schematic view of the rear view structure of the present invention.
In the figure: 1 sewage inlet pipe, 2 control valves, 3 torsion springs, 4 control columns, 5 supporting plates, 6 rotating rollers, 7 pulling ropes, 8 guide wheels, 9 fixing plates, 10 springs, 11 limiting columns, 12 movable plates, 13 connecting rod I, 14 connecting rod II, 15 connecting rod III, 16 jacking plates, 17 reference plates, 18 warning flags, 19 wastewater ponds, 20 temporary storage tanks, 21 valves, 22 connecting pipes, 23 sewage pipes, 24 overflow pipes, 25 limiting plates, 26 warning rods, 27 floating plates, 28 limiting rods, 29 positioning columns, 30 jacking blocks and 31 sliding grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the utility model provides a technical solution: an automatic control device for the liquid level of a comprehensive wastewater pool of a sewage treatment station comprises a wastewater pool 19, wherein a sewage inlet pipe 1 is fixedly connected to the left side surface of the wastewater pool 19, a control valve 2 is fixedly connected to the sewage inlet pipe 1, the control valve 2 is used for opening or closing the sewage inlet pipe 1 and further ensuring the structural functionality of the device, a control end of a control column 4 is fixedly connected to the control end of a torsion spring 3, the side surface of the connection disc fixedly connected to the control column 4 is fixedly connected to one end of the torsion spring 3, the torsion spring 3 is used for driving the control column 4 to rotate by matching with the connection disc and a support plate 5 and further driving the control valve 2 to close the sewage inlet pipe 1 and further ensuring the structural functionality of the device, the other end of the torsion spring 3 is fixedly connected to the lower side surface of the support plate 5, the support plate 5 is fixedly connected to the left side surface of the wastewater pool 19, and, the rotating roller 6 is used for winding the pulling rope 7 and simultaneously is used for matching with the guide wheel 8 to pull out the pulling rope 7, so that the control column 4 overcomes the force of the torsion spring 3 to reversely rotate to drive the control valve 2 to open the sewage inlet pipe 1, thereby ensuring the functional practicability of the device, one end of the pulling rope 7 is fixedly connected on the rotating roller 6, the other end of the pulling rope 7 passes through the guide wheel 8 and the fixed plate 9 and is fixedly connected on the lower side surface of the movable plate 12, the fixed plate 9 is fixedly connected on the left side surface of the wastewater tank 19, the right end of the movable plate 12 is movably connected in the sliding groove 31, the sliding groove 31 is arranged on the left outer surface of the wastewater tank 19, the sliding groove 31 is arranged to ensure the up-and-down movement stability of the movable plate 12 and further ensure the functional practicability of the device, the left end of the movable plate 12 is movably connected with the limiting column, the limiting column 11 is sleeved with a spring 10, the spring 10 is used for overcoming the force of the torsion spring 3 and further ensuring the opening state of the control valve 2 and further ensuring the normal entering of sewage when the liquid level in the wastewater tank 19 is normal, so as to ensure the structural functionality of the device, the upper end and the lower end of the spring 10 are respectively and fixedly connected to the opposite surfaces of the movable plate 12 and the fixed plate 9, the upper side surface of the movable plate 12 is hinged with a first connecting rod 13, the upper end of the first connecting rod 13 is hinged with a second connecting rod 14, the center of the second connecting rod 14 is hinged with a supporting seat through a pin shaft, the first connecting rod 13, the second connecting rod 14 and the third connecting rod 15 are used for pressing down the spring 10 when the liquid level in the wastewater tank 19 reaches a critical point, and further utilizing the force of the torsion spring 3 to drive the control valve 2 to close the sewage inlet pipe 1 so as to achieve the, the second 14 right-hand members of connecting rod have three 15 of connecting rod, three 15 lower extremes of connecting rod articulate there is jacking plate 16, jacking plate 16 right side swing joint has reference column 29, reference column 29's effect is in order to have jacking piece 30 and jacking plate 16's position relatively stable, and then guarantee the device's operation stable, reference column 29 lower extreme fixed connection is side left end on kicking plate 27, reference column 29 left side is provided with jacking piece 30, jacking piece 30 fixed connection is on the upper surface of the left end of kicking plate 27, kicking plate 27 swing joint is on gag lever post 28, the effect of gag lever post 28 is the position of injecing kicking plate 27, and then guarantee the device's structural functionality, gag lever post 28 lower extreme fixed connection is on waste water tank 19 downside inner wall.
The warning pole 26 of floating plate 27 upper surface right-hand member fixedly connected with, limiting plate 25 fixedly connected with warning flag 18 is passed to warning pole 26 upper end, and limiting plate 25 fixed connection is on reference column 29 right flank, and warning pole 26's effect is for raising the position of warning flag 18 and then sending early warning information, also guarantees the horizontal stability of floating plate 27 for cooperating limiting plate 25 simultaneously, and then guarantees the device's structural functionality.
The warning flag 18 trailing flank is provided with reference board 17, refers to board 17 fixed connection on wastewater disposal basin 19 trailing flank, refers to board 17 and corresponds the general control room setting of sewage treatment station, and its purpose is for the convenient staff observes early warning information, and then guarantees the device's structural functionality.
The right end of the limiting rod 28 is provided with an overflow pipe 24, the upper end of the overflow pipe 24 is arranged corresponding to the critical point of the height of the wastewater pool 19, the overflow pipe 24 is fixedly connected to the inner wall of the rear side of the wastewater pool 19 through a connecting ring, the purpose is to prevent a small amount of water in the wastewater pool 19 from overflowing, the structural functionality of the device is further ensured, and the right end of the overflow pipe 24 penetrates through the right side wall of the wastewater pool 19 and the left side wall of the temporary storage box 20 to be arranged in the temporary storage box 20.
Temporary storage box 20 left surface fixed connection is on the 19 left surface of wastewater disposal basin, and two supporting shoes of temporary storage box 20 downside fixedly connected with, its purpose is in order to guarantee the stable position of temporary storage box 20, and is provided with blow off pipe 23 between two supporting shoes, and the setting of blow off pipe 23 left end is in wastewater disposal basin 19, and the setting of blow off pipe 23 is in order to discharge the log raft in wastewater disposal basin 19, and then guarantees wastewater disposal basin 19's functionality.
The lower end of the right side of the temporary storage box 20 is fixedly connected with one end of a connecting pipe 22, the other end of the connecting pipe 22 is communicated with a sewage discharge pipe 23, and a valve 21 is arranged on the connecting pipe 22, so that the purpose of selecting the discharge time of sewage in the temporary storage box 20 by workers is facilitated, and the controllability of the structural function of the device is further ensured.
The utility model discloses an operating procedure does:
when the device is used, sewage is discharged into the wastewater tank 19 through the sewage inlet pipe 1, so that the normal function of the wastewater tank 19 is exerted, in the process that the liquid level of the wastewater tank 19 gradually rises to a critical point, the floating plate 27 moves upwards under the limitation of the limiting rod 28 by virtue of the buoyancy support of the wastewater, the floating plate 27 moves upwards to drive the warning rod 26, the jacking block 30 and the positioning column 29 to move upwards, the warning rod 26 moves upwards to ensure the self stability under the limitation of the limiting plate 25, so that the worker is remotely reminded by matching with the reference plate 17, the positioning column 29 moves upwards to ensure that the jacking block 30 is stably movably connected with the jacking plate 16, in the process, the floating plate 27 ensures the self stability under the limitation of the limiting plate 25, the warning column and the positioning column 29, so that the jacking plate 16 moves upwards to drive the connecting rod three 15 to move upwards, the connecting rod three 15 moves upwards to drive the connecting rod two 14 to lift up and lower on the left side under the support of the supporting seat, thereby causing the link one 13 to drive the movable plate 12 to move downwards against the elastic force of the spring 10 under the limitation of the sliding slot 31, thereby leading the pulling rope 7 to be loosened under the guiding of the guide wheel 8, leading the rotating roller 6 to rotate along with the control column 4 under the action of the torsion spring 3 after the pulling rope 7 is loosened, further leading the control column 4 of the rotating roller 6 to wind and pull the rope 7 to drive the control valve 2 to close the sewage inlet pipe 1, thereby avoiding the pollution to the environment of the sewage treatment station caused by the overflow of the wastewater pool 19 due to the overhigh liquid level in the wastewater pool 19, and if a small amount of sewage overflows in the process, the sewage will be discharged into the temporary storage tank 20 through the overflow pipe 24, and then the sewage in the temporary storage tank 20 is discharged into the sewage discharge pipe 23 through opening the valve 21 at a proper time, further avoiding the overflow of the sewage in the wastewater tank 19, thus further ensuring the structural functionality of the device.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (6)

1. The utility model provides a wastewater treatment station synthesizes wastewater disposal basin liquid level automatic control device, includes wastewater disposal basin (19), its characterized in that: the sewage treatment device is characterized in that a sewage inlet pipe (1) is fixedly connected to the left side face of the wastewater tank (19), a control valve (2) is fixedly connected to the sewage inlet pipe (1), a control column (4) is fixedly connected to the control end of the control valve (2), one end of a torsion spring (3) is fixedly connected to the upper side face of the control column (4) and the lower side face of a support plate (5), the other end of the torsion spring (3) is fixedly connected to the lower side face of the support plate (5), the support plate (5) is fixedly connected to the left side face of the wastewater tank (19), the upper end of the control column (4) penetrates through a movable hole formed in the support plate (5) and is fixedly connected with a rotating roller (6), one end of a pulling rope (7) is fixedly connected to the rotating roller (6), the other end of the pulling rope (7) penetrates through a guide wheel (8) and a fixed plate (9) is fixedly connected to the lower, the movable plate (12) right end is movably connected in a sliding groove (31), the sliding groove (31) is arranged on the outer surface of the left side of a wastewater disposal basin (19), the movable plate (12) left end is movably connected with a limiting column (11), the lower end of the limiting column (11) is fixedly connected on the upper side surface of a fixed plate (9), a spring (10) is sleeved on the limiting column (11), the upper end and the lower end of the spring (10) are respectively fixedly connected on the opposite surfaces of the movable plate (12) and the fixed plate (9), a first connecting rod (13) is hinged on the upper side surface of the movable plate (12), a second connecting rod (14) is hinged at the upper end of the first connecting rod (13), the center of the second connecting rod (14) is hinged with a supporting seat through a pin shaft, the supporting seat is fixedly connected on the upper surface of the left side of the wastewater disposal basin (19), a third connecting rod (15) is hinged at the, jacking board (16) right side swing joint has reference column (29), side left end on kickboard (27) is connected to reference column (29) lower extreme fixed connection, reference column (29) left side is provided with jacking piece (30), jacking piece (30) fixed connection is on kickboard (27) left end upper surface, kickboard (27) swing joint is on gag lever post (28), gag lever post (28) lower extreme fixed connection is on wastewater disposal basin (19) downside inner wall.
2. The automatic control device for the liquid level of the comprehensive wastewater pool of the sewage treatment station as claimed in claim 1, which is characterized in that: floating plate (27) upper surface right-hand member fixedly connected with warns pole (26), limiting plate (25) fixedly connected with warning flag (18) is passed to warning pole (26) upper end, limiting plate (25) fixed connection is on reference column (29) right flank.
3. The automatic control device for the liquid level of the comprehensive wastewater pool of the sewage treatment station as claimed in claim 2, characterized in that: the rear side surface of the warning flag (18) is provided with a reference plate (17), the reference plate (17) is fixedly connected to the rear side surface of the wastewater pond (19), and the reference plate (17) is arranged corresponding to a master control room of the sewage treatment station.
4. The automatic control device for the liquid level of the comprehensive wastewater pool of the sewage treatment station as claimed in claim 1, which is characterized in that: gag lever post (28) right-hand member is provided with overflow pipe (24), the high critical point setting of wastewater disposal basin (19) is corresponded to overflow pipe (24) upper end, overflow pipe (24) pass through go-between fixed connection on wastewater disposal basin (19) rear side inner wall, overflow pipe (24) right-hand member passes wastewater disposal basin (19) right side wall and temporary storage case (20) left side wall and sets up in temporary storage case (20).
5. The automatic control device for the liquid level of the comprehensive wastewater pool of the sewage treatment station as claimed in claim 4, characterized in that: temporary storage case (20) left surface fixed connection is on wastewater disposal basin (19) left surface, two supporting shoes of temporary storage case (20) downside fixedly connected with, and be provided with blow off pipe (23) between two supporting shoes, blow off pipe (23) left end sets up in wastewater disposal basin (19).
6. The automatic control device for the liquid level of the comprehensive wastewater pool of the sewage treatment station as claimed in claim 5, characterized in that: the temporary storage box (20) is characterized in that the lower end of the right side face of the temporary storage box (20) is fixedly connected with one end of a connecting pipe (22), the other end of the connecting pipe (22) is communicated with a sewage discharge pipe (23), and a valve (21) is arranged on the connecting pipe (22).
CN202022045100.XU 2020-09-17 2020-09-17 Automatic control device for liquid level of comprehensive wastewater pool of sewage treatment station Active CN212873286U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022045100.XU CN212873286U (en) 2020-09-17 2020-09-17 Automatic control device for liquid level of comprehensive wastewater pool of sewage treatment station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022045100.XU CN212873286U (en) 2020-09-17 2020-09-17 Automatic control device for liquid level of comprehensive wastewater pool of sewage treatment station

Publications (1)

Publication Number Publication Date
CN212873286U true CN212873286U (en) 2021-04-02

Family

ID=75197746

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022045100.XU Active CN212873286U (en) 2020-09-17 2020-09-17 Automatic control device for liquid level of comprehensive wastewater pool of sewage treatment station

Country Status (1)

Country Link
CN (1) CN212873286U (en)

Similar Documents

Publication Publication Date Title
US11117074B2 (en) Floating sludge discharge device for square settling tank
CN210177656U (en) Water flow control system for urban drainage
CN204919796U (en) Two floating ball control structure check valves
CN212873286U (en) Automatic control device for liquid level of comprehensive wastewater pool of sewage treatment station
CN113622381B (en) Floating-pushing water outlet device for gate of small and medium-sized water conservancy spillway
CN218933377U (en) Sponge city cuts dirty anti-reflux overflow well
CN112728185B (en) Water tap capable of automatically closing water
CN201261910Y (en) Same-way water channel fall spill-proof manhole cover
CN211200644U (en) A diverging device for sewage treatment
CN210917248U (en) Double-floating-box type ecological water taking rolling shutter gate
CN210917241U (en) Trash device that water conservancy bridges and culverts were used
CN204608728U (en) A kind of pilot-operated type Hydro-automatic gate structure
CN212956176U (en) Water conservancy drainage device
CN214832465U (en) Soil-sticking-preventing screw type opening and closing structure of gate for hydraulic engineering
CN115571962B (en) Integrated sewage treatment equipment
CN215630407U (en) Agricultural hydraulic engineering pipeline water supply engineering intake pool structure
CN203223013U (en) Floating swimming pool
CN219675533U (en) Sewage collection device
CN205850327U (en) A kind of automatic draining device
CN220565362U (en) Rainwater sewage split-flow treatment device
CN220952779U (en) Municipal road drainage structures
CN215252308U (en) Town road bridge sluicing device
CN212509743U (en) Automatic throttling communication device
CN215758906U (en) Novel spillway blocks fishing device
CN216135024U (en) Fish tank flushing tank with water changing function

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant