CN207295671U - Suspended floating type trash blocking device - Google Patents
Suspended floating type trash blocking device Download PDFInfo
- Publication number
- CN207295671U CN207295671U CN201721309538.6U CN201721309538U CN207295671U CN 207295671 U CN207295671 U CN 207295671U CN 201721309538 U CN201721309538 U CN 201721309538U CN 207295671 U CN207295671 U CN 207295671U
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- Prior art keywords
- trash rack
- floatation
- group
- blocking device
- trash
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- 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.)
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 82
- 230000000903 blocking effect Effects 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
- 239000010959 steel Substances 0.000 claims abstract description 58
- 239000002984 plastic foam Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract 4
- 239000010865 sewage Substances 0.000 claims description 23
- 239000000725 suspension Substances 0.000 claims description 23
- 239000006260 foam Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 230000005465 channeling Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- 238000011109 contamination Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- -1 it is cheap Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Abstract
The utility model discloses a suspended floating type trash holding device, which comprises a group of trash holding units suspended on hinged supports at two sides of the outlet end of a non-pressure diversion type hydropower station forebay or a desilting basin through steel wire ropes; the trash rack unit is composed of a floating assembly and a trash rack assembly; the trash rack assembly comprises a ladder-shaped frame which is formed by welding supporting angle steel, vertical ribs and transverse ribs and used for fixing vertical grid rods, and a group of vertical grid rods which are arranged in parallel at equal intervals are welded on the ladder-shaped frame; the floating assembly comprises a cuboid frame, plastic foam is arranged in a cavity of the cuboid frame, a group of U-shaped bolts are arranged on the floating assembly, and a steel wire rope penetrates through the two ends of the floating assembly from the group of U-shaped bolts and is connected with hinged supports on two sides of the outlet end of the non-pressure water diversion type hydropower station front pool or the sand basin. The utility model does not need to open grooves on the trash rack pier, and the blocking can not occur during the operation; the trash blocking unit has the advantages of small bearing load, light self weight, less investment and convenient installation, trash removal, overhaul and maintenance.
Description
Technical field
A kind of suspension floatation type sewage blocking device is the utility model is related to, belongs to hydraulic and hydroelectric engineering metal structure technology neck
Domain.
Background technology
Trash rack be in hydroelectric project compared with frequently with one kind block dirty facility, be made of grid leaf and grid groove two parts, according to
The connection mode of grid leaf and grid groove, generally have it is fixed and two kinds movable, wherein fixed trash rack be used for dirt it is less and
Intake-outlet trash rack in storehouse etc. above and below water-drawing channel convenient to overhaul, such as hydroenergy storage station, movable trash rack is because of it
Remove contamination and repair and maintenance is convenient, be suitable for all kinds of hydraulic and hydroelectric engineerings, therefore, application range is wider.
For movable trash rack, trash rack groove is usually set to fix spacing, and set using keyings such as trash, door machines
Standby operation, but for without pressure run-of-river power station forebay or settling pit port of export trash rack, need to be because trash rack ground sill is inclined-plane
To slot on trash rack pier, trash rack groove is easily blocked by silt and dirt, therefore, easy card resistance when trash rack is run；Trash rack
Arranged for broken line type, it is impossible to opening and closing device operation is shared, trash rack is often fanned and is operated using single opening and closing device, investment is too big,
Therefore generally operated using gadget, and trash rack is integral frame structure, dead weight is heavier, using gadget operation difficulty very
Greatly, and investment is larger, and economy is also poor, therefore, the prior art also Shortcomings, up for further perfect.
Utility model content
The purpose of this utility model is that, there is provided one kind suspension floatation type sewage blocking device.The device has the characteristics that to float certainly,
And fixed using steel wire hang, without setting trash rack groove, it can solve the problems, such as easy card resistance during existing trash rack operation.Together
When have and invest less, install, remove contamination and the characteristics of repair and maintenance facilitates, with overcome the deficiencies in the prior art.
The technical solution of the utility model：
One kind suspension floatation type sewage blocking device, including by steel wire hang without pressure run-of-river power station forebay or desilting
One group on the free bearing of pond port of export both sides is blocked dirty unit；It is described to block dirty unit and be made of floatation assembly and trash rack component；Block dirt
Grid component includes the ladder shape frame for fixed vertical grid bar being welded into by support angle steel, perpendicular rib and cross rib, ladder shape frame
The one group of vertical gate being equidistantly arranged in parallel bar is welded with frame；Floatation assembly includes cuboid framework, the sky of cuboid framework
Intracavitary is equipped with plastic foam, and plastic foam is enclosed in the cavity of cuboid framework using round steel or angle steel by cuboid framework surrounding
It is interior；Cuboid framework bottom is connected with the support angle steel of trash rack component, and cuboid framework bottom is by support angle steel by plastics
Foam seals；Plastic foam is sealed by cross baffle at the top of cuboid framework；Cross baffle includes transverse slat and riser, transverse slat
One group of U-bolt is equipped with, the steel wire rope is from one group of U-bolt through rear both ends and without pressure run-of-river power station forebay or heavy
The free bearing connection of sand basin port of export both sides；The infall of transverse slat and riser is equipped with hanging ring.
It is described to block dirty unit and have that flush type blocks dirty unit and unilateral protruding-type blocks dirt in foregoing suspension floatation type sewage blocking device
Two kinds of structural shapes of unit；The trash rack element width that flush type blocks dirty unit is corresponding with the length of floatation assembly, trash rack
Align with floatation assembly length direction below floatation assembly the left and right ends of component；Unilateral protruding-type blocks blocking for dirty unit
Dirty grid element width is more than the length of floatation assembly, and unilateral protruding-type blocks trash rack component one end of dirty unit and floatation assembly is grown
The alignment of direction one end is spent, the trash rack component other end protrudes floatation assembly and is installed on below floatation assembly；Prominent floatation assembly one
One group short vertical gate bar is welded with the top of the support angle steel of side, one group short vertical gate bar middle part is by hyphen rib and is welded on floating
The short support connection of stack face.
It is described to be equipped with one without pressure run-of-river power station forebay or the settling pit port of export in foregoing suspension floatation type sewage blocking device
The trash rack pier of the fan-shaped distribution of group, the trash rack pier of sector distribution include positive trash rack pier and oblique trash rack pier；It is described unilateral prominent
Go out formula and block the side of dirty unit protrusion floatation assembly close to oblique trash rack pier side.
In foregoing suspension floatation type sewage blocking device, the vertical gate bar upper and lower ends are z-shape equipped with square, vertical gate bar
The right angle of upper end is welded with support angle steel, and the right angle of vertical gate bar lower end is hanging；Welded with cross rib in vertical gate bar stage casing.
In foregoing suspension floatation type sewage blocking device, the short vertical gate bar lower end is L-shaped equipped with square, short vertical gate bar
Middle to be welded with hyphen rib, hyphen rib one end is connected through short support with floatation assembly.
It is described without pressure run-of-river power station forebay or settling pit port of export middle and lower part in foregoing suspension floatation type sewage blocking device
Two trash rack piers between be equipped with anti-rotation steel wire rope.
In foregoing suspension floatation type sewage blocking device, the cuboid framework cavity volume of the floatation assembly is according to cuboid frame
The buoyancy that aerial intracavitary plastic foam produces in water determines；The buoyancy that plastic foam produces in water should be greater than entirely suspension drift
The dead weight of floating sewage blocking device plus intercepted dirt weight.
Compared with prior art, the utility model has the advantages that：
1st, block dirty unit and pattern is fixed by steel wire rope using floating dirt blocking bar body, without setting trash rack groove, block dirt
Unit sets quantity and vertical water flow direction dimension can be according to blocking dirty unit span, remove contamination and repair and maintenance condition determines, trash rack
Run it is unaffected, block dirty unit by the plastic foam placed inside cuboid framework produce buoyancy make its float on the water surface with
On, block dirty unit current and born to load by steel wire rope, it is smaller to block dirty unit bearing load, and dead weight is lighter, and investment is less, peace
Fill, remove contamination and repair and maintenance is also more convenient；
2nd, block dirty unit and produce buoyancy using plastic foam, it is cheap, and waste resource can be made full use of, effectively save
Cost；
3rd, steel wire rope is made of hanging steel rope and anti-rotation steel wire rope, and hanging steel rope can artificially adjust length with range of stage
Degree, makes to block the range of stage that dirty unit adapts to certain condition, anti-rotation steel wire rope can prevent from blocking dirty unit rotational, effectively prevent dirt
Flow into flume；
4th, dirty unit is blocked using flushing and unilateral prominent two kinds of patterns, effectively prevents dirt from entering from inclined-plane trash rack pier side
Flume；
5th, blocking dirty unit top sets hanging ring conveniently to be hung in or hung out flume using gadget, convenient installation and
Repair and maintenance.
Brief description of the drawings
Fig. 1 is the structure diagram that flush type blocks dirty unit；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is the right view of Fig. 2；
Fig. 4 is the structure diagram that unilateral protruding-type blocks dirty unit；
Fig. 5 is the application site schematic diagram for blocking dirty unit；
Fig. 6 is the A direction views of Fig. 5；
Fig. 7 is the structure diagram of free bearing；
In figure：01- without pressure run-of-river power station forebay, 02- flush types block dirty unit, 03- one side protruding-type blocks dirty unit,
The positive trash rack pier of 04- steel wire ropes, 05- free bearings, 06-, the oblique trash rack piers of 07-, 10- floatation assemblies, 11- cuboid frameworks, 12- modelings
Strand foam, 13- round steel, 14- transverse slats, 15- risers, 16-U types bolt, 17- hanging rings, 20- trash racks component, 21- support angle steels,
22- erect rib, 23- cross ribs, 24- vertical gates bar, 30- one side protruding-type block dirty unit the short vertical gate bar of trash rack component, 31-,
32- hyphens rib, the short supports of 33-.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, but not as new to this practicality
Any restrictions of type.
One kind suspension floatation type sewage blocking device, as shown in Figure 5 and Figure 6：Including being suspended on by steel wire rope 04 without pressure diversion
One group on formula power station forebay 01 or settling pit port of export both sides free bearing 05 is blocked dirty unit；It is described to block the institute of dirty unit such as Fig. 1~3
Show and be made of floatation assembly 10 and trash rack component 20；Trash rack component 20 is included by support angle steel 21, perpendicular rib 22 and cross rib 23
The ladder shape frame for fixed vertical grid bar 24 being welded into, one group is welded with ladder shape frame and is equidistantly arranged in parallel
Vertical gate bar 24；Floatation assembly 10 includes cuboid framework 11, and plastic foam 12 is equipped with the cavity of cuboid framework 11, rectangular
Plastic foam 12 is enclosed in the cavity of cuboid framework 11 by 11 surrounding of body frame using round steel 13 or angle steel；Cuboid framework 11
Bottom is connected with the support angle steel 21 of trash rack component 20, and 11 bottom of cuboid framework is by support angle steel 21 by plastic foam 12
Seal；The top of cuboid framework 11 is sealed plastic foam 12 by cross baffle；Cross baffle includes transverse slat 14 and riser 15,
Transverse slat 14 is equipped with one group of U-bolt 16, and the steel wire rope 04 passes through rear both ends and nothing from one group of U-bolt 16 as shown in Figure 6
The free bearing 05 of pressure run-of-river power station forebay 01 or settling pit port of export both sides connects；Transverse slat 14 as shown in Figure 1 and riser 15
Infall is equipped with hanging ring 17；
It is described to block dirty unit and there is flush type to block dirty unit 02（See Fig. 1~3）Dirty unit 03 is blocked with unilateral protruding-type（See Fig. 4）
Two kinds of structural shapes；Unilateral protruding-type blocks compared with dirty unit 03 blocks dirty unit 02 with flush type mainly 20 width of trash rack component
It is different；The trash rack element width 20 that such as figure flush type blocks dirty unit is corresponding with the length of floatation assembly 10, trash rack component
Align with 10 length direction of floatation assembly installed in the lower section of floatation assembly 10 20 left and right ends；Unilateral protruding-type blocks dirty unit
30 width of trash rack component is more than the length of floatation assembly 10, and unilateral protruding-type blocks 30 one end of trash rack component and the drift of dirty unit
Floating 10 length direction one end of component alignment, 30 other end of trash rack component that unilateral protruding-type blocks dirty unit protrude floatation assembly 10
Installed in the lower section of floatation assembly 10；The top of support angle steel 21 of prominent 10 side of floatation assembly is welded with one group short vertical gate bar
31, the one group short middle part of vertical gate bar 31 is connected by short support 33 of the hyphen rib 32 with being welded on 10 end face of floatation assembly.
As shown in figure 5, dirt is blocked equipped with what one group of sector was distributed without pressure run-of-river power station forebay 01 or the settling pit port of export
Grid pier, the trash rack pier of sector distribution include a positive trash rack pier 06 and symmetrically arranged four oblique trash rack piers 07；Due to
Floatation assembly 10 is rectangular parallelepiped structure, and therefore, after 10 one end of floatation assembly is bonded with positive trash rack pier 06, floatation assembly 10 is another
One end, there are angle, can not be bonded with oblique trash rack pier 07 with oblique trash rack pier 07, form notch completely.So unilateral protruding-type
The vertical gate bar for blocking the dirty protrusion of unit 03 floatation assembly 10 is mainly used for making up the notch of oblique trash rack pier side.
24 upper and lower ends of vertical gate bar as shown in Figure 3 are z-shape equipped with square, the right angle of 24 upper end of vertical gate bar and support
Angle steel 21 welds, and the right angle of 24 lower end of vertical gate bar is hanging；Welded with cross rib 23 in 24 stage casing of vertical gate bar.It is short as shown in Figure 4 to hang down
Straight 31 lower end of grid bar is L-shaped equipped with square, is welded among short vertical gate bar 31 with hyphen rib 32,32 one end of hyphen rib is through short support
33 are connected with floatation assembly 10.
It is described anti-without being equipped between pressure run-of-river power station forebay 01 or two trash rack piers of settling pit port of export middle and lower part
Turn steel wire rope.The anti-rotation steel wire rope is located at the back side for blocking dirty unit middle and lower part, and anti-rotation steel wire rope both ends are separately fixed at nothing
On the two trash rack piers for pressing run-of-river power station forebay 01 or settling pit port of export middle and lower part, make to block under the action of current dirty single
Member leaning against on anti-rotation steel wire rope tightly, rotates to avoid dirty unit is blocked, and can effectively prevent dirt from flowing into flume.
11 cavity volume of cuboid framework of the floatation assembly 10 is according to plastic foam 12 in 11 cavity of cuboid framework
The buoyancy produced in water determines；The buoyancy that plastic foam 12 produces in water should be greater than entirely hanging floatation type sewage blocking device certainly
Again plus the dirt weight that is intercepted.
Embodiment
The suspension floatation type sewage blocking device of the utility model, as shown in figures 1 to 6, is drawn by being suspended on no pressure by steel wire rope 04
One group on ability of swimming power station forebay 01 or settling pit port of export both sides free bearing 05 is blocked dirty unit composition, is blocked dirty unit and is passed through steel wire
Rope 04 is fixed on port of export both sides free bearing 05, and it is floatation assembly 10 to block dirty unit top, and floatation assembly 10 includes cuboid frame
Frame 11, cuboid framework 11 are welded by angle steel.Plastic foam 12, plastic foam are placed with the cavity of cuboid framework 11
12 angle steel or round steel 10 by being welded on 11 surrounding of cuboid framework seals, to prevent plastic foam 12 from cuboid framework 11
Surrounding abjection.11 lower part of cuboid framework is sealed by the support angle steel 21 at the top of trash rack component 20, to prevent plastic blister
Foam 12 is deviate from from the lower part of cuboid framework 11.11 top of cuboid framework is sealed by cross baffle, to prevent plastic foam
12 deviate from from the top of cuboid framework 11.One group of vertical gate bar 24 of the lower section of support angle steel 21 at the top of trash rack component 20 blocks
Firmly dirt.The ladder shape frame that the support angle steel 21 of trash rack component 20, perpendicular rib 22 and cross rib 23 are formed is mainly used for fixed hang down
Straight grid bar 24.The U-bolt 16 at the top of floatation assembly 10 blocks dirty unit for reeving 04 suspension.04 both ends of steel wire rope are fixed
On the free bearing 05 without pressure run-of-river power station forebay 01 or settling pit port of export both sides trash rack pier, free bearing 05 as shown in fig. 7,
The earhole direction of free bearing 05 blocks dirty unit side.
Blocking dirty unit has that flush type blocks dirty unit 02 and unilateral protruding-type blocks dirty 03 two kinds of structural shapes of unit；Two kinds are blocked dirt
The quantity and vertical water flow direction dimension that unit is set can according to trash rack span, remove contamination and repair and maintenance condition determines；Floating group
The cross baffle at the top of part 10 is made of transverse slat 14 and riser 15；Parallel to the flow direction is riser 15, and Transverse to the flow direction is transverse slat
14, transverse slat 14 is made of two angle steel welded back-to-back, and transverse slat 14 is easy to connecting steel wire ropes 04 equipped with U-bolt 16, horizontal
Plate 14 is equipped with hanging ring 17 to facilitate lifting to block dirty unit.
Claims (8)
1. one kind suspension floatation type sewage blocking device, it is characterised in that：Including passing through steel wire rope（04）It is suspended on without pressure water channeling type water
Power station forebay（01）Or settling pit port of export both sides free bearing（05）On one group block dirty unit；It is described to block dirty unit by floatation assembly
（10）With trash rack component（20）Form；Trash rack component（20）Including by support angle steel（21）, perpendicular rib（22）And cross rib（23）
What is be welded into is used for fixed vertical grid bar（24）Ladder shape frame, be welded with one group on ladder shape frame and be equidistantly arranged in parallel
Vertical gate bar（24）；Floatation assembly（10）Including cuboid framework（11）, cuboid framework（11）Cavity in be equipped with plastics
Foam（12）, cuboid framework（11）Surrounding uses round steel（13）Or angle steel is by plastic foam（12）It is enclosed in cuboid framework（11）
Cavity in；Cuboid framework（11）Bottom and trash rack component（20）Support angle steel（21）Connection, cuboid framework（11）
Bottom passes through support angle steel（21）By plastic foam（12）Seal；Cuboid framework（11）Top is by cross baffle by plastic blister
Foam（12）Seal；Cross baffle includes transverse slat（14）And riser（15）, transverse slat（14）It is equipped with one group of U-bolt（16）, it is described
Steel wire rope（04）From one group of U-bolt（16）Through rear both ends and without pressure run-of-river power station forebay（01）Or the settling pit port of export
The free bearing of both sides（05）Connection；Transverse slat（14）With riser（15）Infall be equipped with hanging ring（17）.
2. suspension floatation type sewage blocking device according to claim 1, it is characterised in that：It is described to block dirty unit and there is flush type to block
Dirty unit（02）Dirty unit is blocked with unilateral protruding-type（03）Two kinds of structural shapes；Flush type blocks dirty unit（02）Trash rack component
（20）Width and floatation assembly（10）Length it is corresponding, trash rack component（20）Left and right ends and floatation assembly（10）Length
Direction alignment is installed on floatation assembly（10）Lower section；Unilateral protruding-type blocks the trash rack component of dirty unit（30）Width is more than floating
Component（10）Length, unilateral protruding-type blocks the trash rack component of dirty unit（30）One end and floatation assembly（10）Length direction one
End alignment, trash rack component（30）The other end protrudes floatation assembly（10）Installed in floatation assembly（10）Lower section；Prominent floating group
Part（10）The support angle steel of side（21）Top is welded with one group short vertical gate bar（31）, one group short vertical gate bar（31）Middle part leads to
Too short cross rib（32）With being welded on floatation assembly（10）The short support of end face（33）Connection.
3. suspension floatation type sewage blocking device according to claim 1, it is characterised in that：Before the run-of-river power station without pressure
Pond（01）Or the settling pit port of export is equipped with the trash rack pier of one group of fan-shaped distribution, the trash rack pier of sector distribution includes positive trash rack
Pier（06）With oblique trash rack pier（07）.
4. suspension floatation type sewage blocking device according to claim 2, it is characterised in that：The one side protruding-type blocks dirty unit
（03）Prominent floatation assembly（10）Side close to oblique trash rack pier side.
5. suspension floatation type sewage blocking device according to claim 1, it is characterised in that：The vertical gate bar（24）Upper and lower two
End is z-shape equipped with square, vertical gate bar（24）The right angle and support angle steel of upper end（21）Welding, vertical gate bar（24）Lower end
Right angle is hanging；Vertical gate bar（24）Stage casing and cross rib（23）Welding.
6. suspension floatation type sewage blocking device according to claim 2, it is characterised in that：The short vertical gate bar（31）Lower end
It is L-shaped equipped with square, short vertical gate bar（31）Middle and hyphen rib（32）Welding, hyphen rib（32）One end is through short support（33）With
Floatation assembly（10）Connection.
7. suspension floatation type sewage blocking device according to claim 1, it is characterised in that：Before the run-of-river power station without pressure
Pond（01）Or anti-rotation steel wire rope is equipped between two trash rack piers of settling pit port of export middle and lower part.
8. suspension floatation type sewage blocking device according to claim 1, it is characterised in that：The floatation assembly（10）It is rectangular
Body frame（11）Cavity volume is according to cuboid framework（11）Plastic foam in cavity（12）The buoyancy produced in water determines；Modeling
Strand foam（12）The buoyancy produced in water should be greater than the entirely dead weight of suspension floatation type sewage blocking device plus intercepted dirt weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721309538.6U CN207295671U (en) | 2017-10-11 | 2017-10-11 | Suspended floating type trash blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721309538.6U CN207295671U (en) | 2017-10-11 | 2017-10-11 | Suspended floating type trash blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207295671U true CN207295671U (en) | 2018-05-01 |
Family
ID=62413928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721309538.6U Active CN207295671U (en) | 2017-10-11 | 2017-10-11 | Suspended floating type trash blocking device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207295671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761681A (en) * | 2017-10-11 | 2018-03-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Suspended floating type trash blocking device |
-
2017
- 2017-10-11 CN CN201721309538.6U patent/CN207295671U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761681A (en) * | 2017-10-11 | 2018-03-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Suspended floating type trash blocking device |
| CN107761681B (en) * | 2017-10-11 | 2023-03-14 | 中国电建集团贵阳勘测设计研究院有限公司 | Suspended floating type trash blocking device |
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