CN206706714U - A kind of river garbage salvages system - Google Patents
A kind of river garbage salvages system Download PDFInfo
- Publication number
- CN206706714U CN206706714U CN201720227094.5U CN201720227094U CN206706714U CN 206706714 U CN206706714 U CN 206706714U CN 201720227094 U CN201720227094 U CN 201720227094U CN 206706714 U CN206706714 U CN 206706714U
- Authority
- CN
- China
- Prior art keywords
- pull rope
- towing capstan
- traction
- capstan
- fishing net
- 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
Links
Abstract
The utility model belongs to technology for environmental dredging field, discloses a kind of river garbage and salvages system, including:Fishing net, the first pull rope, the first hitch structure, the second pull rope and the second hitch structure;First pull rope is fixed on first hitch structure, and upper and lower ends are separately fixed on first pull rope on the left of the fishing net;Second pull rope is fixed on second hitch structure, and upper and lower ends are separately fixed on second pull rope on the right side of the fishing net;Wherein, when performing river garbage salvaging, first hitch structure is fixed on river course left bank, and first pull rope fixes upper and lower ends on the left of the fishing net respectively;Second hitch structure is fixed on river course right bank, and second pull rope fixes upper and lower ends on the right side of the fishing net respectively;First hitch structure and second hitch structure are synchronous along the river course direction traction fishing net.The utility model provides a kind of system for lifting river garbage and salvaging efficiency and salvaging area.
Description
Technical field
Technology for environmental dredging field is the utility model is related to, more particularly to a kind of river garbage salvages system.
Background technology
Channel cleanout is that the mud in river course is cut from the bottom, collects and be transported to the silt that locality is focused on
Mud treatment measures.
At present, domestic desilting mode mainly has:(1) grab mud equipment using excavator (land with or water with) or boat-carrying and enter
Row mud is cleared up, and this method desilting is not thorough, and needs to configure mud cargo ship, and the later stage transport of mud is with handling extremely not
Just, secondary pollution is easily caused.(2) underwater desilting, typically using bucket dredge or cutter suction dredger by mud from river bed
Extract out, transport processing is carried out with pipeline, river course surrounding enviroment are influenceed small.But it is larger due to being disturbed during desilting to river bed,
Following strand suction inlet and slush pump can be caused easily by the rubbish silting in mud, cause desilting efficiency data low and fragile equipment.To carry
High channel cleanout efficiency, before dredging to the rubbish in river course carry out salvage cleaning just seem particularly significant.
However, rubbish salvaging generally use is manually salvaged in the prior art, or pick-up boat carries out local salvaging;Work is strong
Degree is big and salvaging efficiency is low, and swept area is limited.
Utility model content
The utility model provides a kind of river garbage and salvages system, solves river garbage in the prior art and salvages swept area
Small, labor intensity is big, salvages the low technical problem of efficiency.
In order to solve the above technical problems, the utility model, which provides a kind of river garbage, salvages system, including:Fishing net,
First pull rope, the first hitch structure, the second pull rope and the second hitch structure;
First pull rope is fixed on first hitch structure, and upper and lower ends are fixed respectively on the left of the fishing net
On first pull rope;
Second pull rope is fixed on second hitch structure, and upper and lower ends are fixed respectively on the right side of the fishing net
On second pull rope;
Wherein, when performing river garbage salvaging, first hitch structure is fixed on river course left bank, first traction
Rope fixes upper and lower ends on the left of the fishing net respectively;Second hitch structure is fixed on river course right bank, second traction
Rope fixes upper and lower ends on the right side of the fishing net respectively;
First hitch structure and second hitch structure are synchronous along the river course direction traction fishing net.
Further, first hitch structure includes:First guide pile, the first traction stake and the first traction power member
Part;
First pull rope is tensed between first guide pile and the first traction stake, with first traction power
Element is connected, and can be moved back and forth between first guide pile and the first traction stake;
Second hitch structure includes:Second guide pile, the second traction stake and the second traction power element;
Second pull rope is tensed between second guide pile and the second traction stake, with second traction power
Element is connected, and can be moved back and forth between second guide pile and the second traction stake.
Further, the first traction power element includes:First power motor and the first towing capstan;Described
One power motor rotating shaft is fixedly linked with first towing capstan, and first towing capstan can be driven to turn along central axis
It is dynamic;The first pull rope both ends reverse-winding is on first towing capstan;
The second traction power element includes:Second power motor and the second towing capstan;Second power electric
Machine rotating shaft is fixedly linked with second towing capstan, can drive second towing capstan along center axis thereof;Described
Two pull rope both ends reverse-windings are on second towing capstan.
Further, between first power motor and first towing capstan and second power motor with
Clutch is respectively provided between second towing capstan.
Further, the first traction power element includes:First electrical machinery of active force, the first main towing capstan, first
Secondary power motor and the first secondary towing capstan;The first electrical machinery of active force rotating shaft and the described first main towing capstan stationary phase
Even, the described first main towing capstan can be driven to be rotated along its center axis, the first secondary power motor rotating shaft and described first
Secondary towing capstan is fixedly linked, and the described first secondary towing capstan can be driven to be rotated along its center axis;First pull rope one
End is wrapped on the described first main towing capstan, and other end reverse-winding is on the described first secondary towing capstan;
The second traction power element includes:Second electrical machinery of active force, the second main towing capstan, the second secondary power motor
And the second secondary towing capstan;The second electrical machinery of active force rotating shaft is fixedly linked with the described second main towing capstan, can drive
The second main towing capstan rotates along its center axis, the second secondary power motor rotating shaft and the described second secondary towing capstan
It is fixedly linked, the described second secondary towing capstan can be driven to be rotated along its center axis;The second pull rope one ends wound is in institute
State on the second main towing capstan, other end reverse-winding is on the described second secondary towing capstan.
Further, between first electrical machinery of active force and the first main towing capstan, the first secondary power electric
Between machine and the first secondary traction line wheel towing capstan, between second electrical machinery of active force and the second main towing capstan
And it is respectively provided with clutch between the second secondary power motor and the second secondary towing capstan.
Further, bottom is connected by the first underwater sled that is oriented to first pull rope on the left of the fishing net;
Bottom is connected by the second underwater sled that is oriented to second pull rope on the right side of the fishing net.
Further, the described first underwater be oriented on sled and the second underwater guiding sled opens up adjustable match somebody with somebody
Weight structure.
Further, a tightening structure is set between first pull rope and second pull rope;
Described first underwater guiding sled and the second underwater sled that is oriented to are connected with the tightening structure.
Further, the fishing net bottom sets plummet.
The one or more technical schemes provided in the embodiment of the present application, have at least the following technical effects or advantages:
The river garbage provided in the embodiment of the present application salvages system, by setting a fishing net in river course, passes through
Hitch structure is set in river course both sides, fishing net is drawn along river course direction while throwing the net, so as to remove the rubbish in river course, carries
Rise and salvage efficiency;River width can also be adapted to, realizes that universe face is salvaged;Meanwhile labor intensity of operating staff can be greatly lowered.
Further, pull rope is tensed by guide pile and traction stake, and tractive force is applied by traction power element, pulled
Pull rope moves up in river course side, so as to pull fishing net is stable to advance, while keeps the opening posture of fishing net, as far as possible
Expand and salvage area.By the way that the both ends of pull rope are wrapped on capstan winch according to opposite direction pull rope can be ensured in load-carrying feelings
Tensioning reliability and mobile reliability under condition.The reliability of pull rope control can be ensured by the setting of clutch.
Further, by being oriented to the design of sled under water, enable to salvage sieve bottom insertion mud layer, ensure fishing net
Mobile posture, avoid rubbish from spilling;Meanwhile adaptability of the sled to underwater mud layer is oriented to based on underwater, ensure fishing net
The state in river course is fully adapted to, improves and salvages efficiency.By the setting of plummet, ensure that fishing net can possess larger all the time
Web area.
Brief description of the drawings
Fig. 1 is that river garbage provided by the utility model salvages system structure diagram.
Embodiment
The embodiment of the present application salvages system by providing a kind of river garbage, solves river garbage in the prior art and salvages spoke
It is small to penetrate area, labor intensity is big, salvages the low technical problem of efficiency.
In order to be better understood from above-mentioned technical proposal, below in conjunction with Figure of description and specific embodiment to upper
State technical scheme to be described in detail, it should be understood that the specific features in the utility model embodiment and embodiment are to this Shen
Please technical scheme detailed description, rather than the restriction to technical scheme, in the case where not conflicting, the application is real
Applying the technical characteristic in example and embodiment can be mutually combined.
Referring to Fig. 1, a kind of river garbage salvages system, including:Fishing net 1, the first pull rope 2, the first hitch structure,
Two pull ropes 3 and the second hitch structure.
Specifically, first pull rope 2 is fixed on first hitch structure, and the left side of fishing net 1 is up and down
Both ends are separately fixed on first pull rope 2;
Second pull rope 3 is fixed on second hitch structure, and the right side upper and lower ends of fishing net 1 are solid respectively
It is scheduled on second pull rope 3.
So as to establish a structural form thrown the net, thrown the net when easy to use, and 4 points of application tractive force.
That is, when performing river garbage salvaging, first hitch structure is fixed on river course left bank, first pull rope
2 fix the left side upper and lower ends of fishing net 1 respectively;Second hitch structure is fixed on river course right bank, second traction
Rope 3 fixes the right side upper and lower ends of fishing net 1 respectively;So as to establish throw the net structure and 4 points of forces in cross a river road based on riverbank
Structure;Cover whole river course.
First hitch structure and second hitch structure are synchronous along the river course direction traction fishing net;Along same
Fishing net 1 is drawn in direction, realizes fishing operation.
Specifically, first hitch structure includes:First guide pile 4, first draws the traction power of stake 5 and first
Element;
First pull rope 2 is tensed between first guide pile 4 and first draws stake 5, with the described first traction
Dynamical element is connected, and can be moved back and forth between first guide pile 4 and the first traction stake 5;So as to be applied to fishing net 1
Add left side tractive force.
Second hitch structure includes:Second guide pile 6, second draws the traction power element of stake 7 and second;
Second pull rope 3 is tensed between second guide pile 6 and second draws stake 7, with the described second traction
Dynamical element is connected, and can be moved back and forth between second guide pile 6 and the second traction stake 7;So as to be applied to fishing net 1
Add right side tractive force.
Further, the first traction power element includes:First power motor and the first towing capstan;Described
One power motor rotating shaft is fixedly linked with first towing capstan, and first towing capstan can be driven to turn along central axis
It is dynamic;The first pull rope both ends reverse-winding is on first towing capstan;So that the rotation of capstan winch is led with first
The movement of messenger 2 is engaged, and fully ensures that the tension of pull rope.
The second traction power element includes:Second power motor and the second towing capstan;Second power electric
Machine rotating shaft is fixedly linked with second towing capstan, can drive second towing capstan along center axis thereof;Described
Two pull rope both ends reverse-windings are on second towing capstan;So that the rotation and the shifting of the second pull rope 2 of capstan winch
It is dynamic to be engaged, fully ensure that the tension of pull rope.
Between first power motor and first towing capstan and second power motor and described second
Clutch is respectively provided between towing capstan, ensures winch control reliability.
Or the first traction power element includes:First electrical machinery of active force 8, the first main towing capstan 9, first are secondary
10 and first secondary towing capstan 11 of power motor;The rotating shaft of first electrical machinery of active force 8 is solid with the described first main towing capstan 9
It is fixed to be connected, the described first main towing capstan 9 can be driven to be rotated along its center axis, the first secondary rotating shaft of power motor 10 and institute
State the first secondary towing capstan 11 to be fixedly linked, the described first secondary towing capstan 11 can be driven to be rotated along its center axis;Described
The one ends wound of one pull rope 2 is on the described first main towing capstan 9, and other end reverse-winding is in the described first secondary towing capstan 11
On;So as to realize the tension of pull rope by the cooperation of two capstan winches.
The second traction power element includes:Second electrical machinery of active force 12, the second main towing capstan 13, the second secondary power
14 and second secondary towing capstan 15 of motor;The rotating shaft of second electrical machinery of active force 12 is fixed with the described second main towing capstan 13
It is connected, the described second main towing capstan 13 can be driven to be rotated along its center axis, the second secondary rotating shaft of power motor 14 and institute
State the second secondary towing capstan 15 to be fixedly linked, the described second secondary towing capstan 15 can be driven to be rotated along its center axis;Described
The one ends wound of two pull rope 3 is on the described second main towing capstan 13, and other end reverse-winding is in the described second secondary towing capstan
On 15;So as to realize the tension of pull rope by the cooperation of two capstan winches.
Further, between first electrical machinery of active force 8 and the first main towing capstan 9, the first secondary power
Between motor 10 and the first secondary traction line wheel towing capstan 11, second electrical machinery of active force 12 and the described second main traction
Clutch is respectively provided between capstan winch 13 and between the second secondary power motor 14 and the second secondary towing capstan 15.
Further, the left side bottom of fishing net 1 passes through the first underwater guiding sled 16 and the phase of the first pull rope 2
Even;The right side bottom of fishing net 1 is connected by the second underwater sled 17 that is oriented to second pull rope 3.
Mud layer is embedded in by possessing the sled of constant weight, guiding salvages sieve bottom and presses close to river bed, and efficiency is salvaged in lifting;Together
When can also guide fishing net adapt to river course state.
Further, described first it is underwater be oriented to sled 16 and it is described second it is underwater be oriented on sled 17 open up it is adjustable
Save counter weight construction, such as counterweight cabin, water tank, in the insertion mud layer that can more stablize.
Further, a tightening structure 18 is set between first pull rope 2 and second pull rope 3;It is described
First underwater guiding sled 16 and the second underwater sled 17 that is oriented to are connected with the tightening structure 18.By tightening structure 18
Pulling force is provided, pulls sled movement, ensures the angle of direction and force.
Further, the fishing net bottom sets plummet.Further increase dynamics of throwing the net, expand and salvage area.
Lower mask body introduces the course of work.
The first underwater underwater skid 17 that is oriented to of skid 16 and second that is oriented to is put into river course insertion mud, is attached thereto
The bottom of fishing net 1 puts in mud therewith.
If salvage forward,
If using four electric machine structures, the first electrical machinery of active force 8 and the second electrical machinery of active force 12 are opened, corresponding clutch connects
Close, the twisted rope on the first main 9 and second main towing capstan 13 of towing capstan is rotated drawstring, so as to drive the first pull rope respectively
2 and second pull rope 3, fishing net 1 move forward, the rubbish in the river course water surface to mud is salvaged;
Now the first secondary 10 and second secondary power motor 14 of power motor may be at off-position, corresponding clutch point
From capstan winch 3 is put rope and rotated;Electricity can also be gone up, clutch closes, and matching applies certain tractive force, keeps at pull rope
In good tension, controlled according to the salvaging condition selecting of reality;
When salvaging completion or needing to clear up rubbish, lift fishing net 1 and pour out rubbish, rearrange next section of progress
Salvaging task.Reverse operating is salvaged backward.
When using bi-motor structure, the pull rope both ends are wrapped on a capstan winch, it is only necessary to by power motor
Tractive force outbound course is in opposite direction with salvaging.
The one or more technical schemes provided in the embodiment of the present application, have at least the following technical effects or advantages:
The river garbage provided in the embodiment of the present application salvages system, by setting a fishing net in river course, passes through
Hitch structure is set in river course both sides, fishing net is drawn along river course direction while throwing the net, so as to remove the rubbish in river course, carries
Rise and salvage efficiency;River width can also be adapted to, realizes that universe face is salvaged;Meanwhile labor intensity of operating staff is greatly reduced.
Further, pull rope is tensed by guide pile and traction stake, and tractive force is applied by traction power element, pulled
Pull rope moves up in river course side, so as to pull fishing net is stable to advance, while keeps the opening posture of fishing net, as far as possible
Expand and salvage area.By the way that the both ends of pull rope are wrapped on capstan winch according to opposite direction pull rope can be ensured in load-carrying feelings
Tensioning reliability and mobile reliability under condition.The reliability of pull rope control can be ensured by the setting of clutch.
Further, by being oriented to the design of sled under water, enable to salvage sieve bottom insertion mud layer, ensure fishing net
Mobile posture, avoid rubbish from spilling;Meanwhile adaptability of the sled to underwater mud layer is oriented to based on underwater, ensure fishing net
The state in river course is fully adapted to, improves and salvages efficiency.By the setting of plummet, ensure that fishing net can possess larger all the time
Web area.
It should be noted last that above embodiment is only illustrating the technical solution of the utility model rather than limit
System, although the utility model is described in detail with reference to example, it will be understood by those within the art that, can be right
The technical solution of the utility model is modified or equivalent substitution, without departing from the spirit and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (10)
1. a kind of river garbage salvages system, it is characterised in that including:Fishing net, the first pull rope, the first hitch structure,
Two pull ropes and the second hitch structure;
First pull rope is fixed on first hitch structure, and upper and lower ends are separately fixed at institute on the left of the fishing net
State on the first pull rope;
Second pull rope is fixed on second hitch structure, and upper and lower ends are separately fixed at institute on the right side of the fishing net
State on the second pull rope;
Wherein, when performing river garbage salvaging, first hitch structure is fixed on river course left bank, first pull rope point
Gu Ding not fishing net left side upper and lower ends;Second hitch structure is fixed on river course right bank, second pull rope point
Gu Ding not fishing net right side upper and lower ends;
First hitch structure and second hitch structure are synchronous along the river course direction traction fishing net.
2. river garbage as claimed in claim 1 salvages system, it is characterised in that first hitch structure includes:First
Guide pile, the first traction stake and the first traction power element;
First pull rope is tensed between first guide pile and the first traction stake, with the first traction power element
It is connected, can be moved back and forth between first guide pile and the first traction stake;
Second hitch structure includes:Second guide pile, the second traction stake and the second traction power element;
Second pull rope is tensed between second guide pile and the second traction stake, with the second traction power element
It is connected, can be moved back and forth between second guide pile and the second traction stake.
3. river garbage as claimed in claim 2 salvages system, it is characterised in that the first traction power element includes:
First power motor and the first towing capstan;The first power motor rotating shaft is fixedly linked with first towing capstan,
First towing capstan can be driven along center axis thereof;The first pull rope both ends reverse-winding is in the described first traction
On capstan winch;
The second traction power element includes:Second power motor and the second towing capstan;Second power motor turns
Axle is fixedly linked with second towing capstan, can drive second towing capstan along center axis thereof;Described second leads
Messenger both ends reverse-winding is on second towing capstan.
4. river garbage as claimed in claim 3 salvages system, it is characterised in that:First power motor and described first
Clutch is respectively provided between towing capstan and between second power motor and second towing capstan.
5. river garbage as claimed in claim 2 salvages system, it is characterised in that the first traction power element includes:
First electrical machinery of active force, the first main towing capstan, the first secondary power motor and the first secondary towing capstan;First active force
Machine shaft is fixedly linked with the described first main towing capstan, and the described first main towing capstan can be driven to turn along its center axis
Dynamic, the first secondary power motor rotating shaft is fixedly linked with the described first secondary towing capstan, and the described first secondary traction can be driven to twist
Disk rotates along its center axis;On the described first main towing capstan, the other end reversely twines the first pull rope one ends wound
It is wound on the described first secondary towing capstan;
The second traction power element includes:Second electrical machinery of active force, the second main towing capstan, the second secondary power motor and
Second secondary towing capstan;The second electrical machinery of active force rotating shaft is fixedly linked with the described second main towing capstan, can drive described
Second main towing capstan is rotated along its center axis, and the second secondary power motor rotating shaft is fixed with the described second secondary towing capstan
It is connected, the described second secondary towing capstan can be driven to be rotated along its center axis;The second pull rope one ends wound is described
On two main towing capstans, other end reverse-winding is on the described second secondary towing capstan.
6. river garbage as claimed in claim 5 salvages system, it is characterised in that:First electrical machinery of active force and described the
Between one main towing capstan, between the first secondary power motor and the first secondary traction line wheel towing capstan, described second
Between electrical machinery of active force and the second main towing capstan and the second secondary power motor and the described second secondary towing capstan
Between be respectively provided with clutch.
7. the river garbage as described in any one of claim 1~6 salvages system, it is characterised in that:Bottom on the left of the fishing net
End is connected by the first underwater sled that is oriented to first pull rope;Bottom passes through the second underwater guiding on the right side of the fishing net
Sled is connected with second pull rope.
8. river garbage as claimed in claim 7 salvages system, it is characterised in that:Described first underwater guiding sled and institute
State the second underwater be oriented on sled and open up adjustable weight structure.
9. river garbage as claimed in claim 7 salvages system, it is characterised in that:In first pull rope and described second
One tightening structure is set between pull rope;
Described first underwater guiding sled and the second underwater sled that is oriented to are connected with the tightening structure.
10. river garbage as claimed in claim 9 salvages system, it is characterised in that:The fishing net bottom sets plummet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720227094.5U CN206706714U (en) | 2017-03-09 | 2017-03-09 | A kind of river garbage salvages system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720227094.5U CN206706714U (en) | 2017-03-09 | 2017-03-09 | A kind of river garbage salvages system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN206706714U true CN206706714U (en) | 2017-12-05 |
Family
ID=60469481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720227094.5U Active CN206706714U (en) | 2017-03-09 | 2017-03-09 | A kind of river garbage salvages system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN206706714U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107245992A (en) * | 2017-03-09 | 2017-10-13 | 江苏中宜生态土研究院有限公司 | A kind of river garbage salvages system |
CN109610425A (en) * | 2019-01-02 | 2019-04-12 | 河北环境工程学院 | One kind being used for environmental improvement water area refuse fishing device |
CN111287137A (en) * | 2020-02-26 | 2020-06-16 | 深圳市宏大建设集团有限公司 | Urban inland river pollution treatment system |
-
2017
- 2017-03-09 CN CN201720227094.5U patent/CN206706714U/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107245992A (en) * | 2017-03-09 | 2017-10-13 | 江苏中宜生态土研究院有限公司 | A kind of river garbage salvages system |
CN109610425A (en) * | 2019-01-02 | 2019-04-12 | 河北环境工程学院 | One kind being used for environmental improvement water area refuse fishing device |
CN111287137A (en) * | 2020-02-26 | 2020-06-16 | 深圳市宏大建设集团有限公司 | Urban inland river pollution treatment system |
CN111287137B (en) * | 2020-02-26 | 2022-04-29 | 广东华茂水电生态集团有限公司 | Urban inland river pollution treatment system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN206706714U (en) | A kind of river garbage salvages system | |
CN107245992A (en) | A kind of river garbage salvages system | |
KR20190031389A (en) | Method for laying geotextile mat | |
CN206625228U (en) | Conduit dredger | |
CN112758257B (en) | Portable folding rope net formula AUV recovery system | |
JP2015139391A (en) | Hydraulic material collecting apparatus | |
CN110952609B (en) | Sediment pool dredging method and device | |
CN201031404Y (en) | Digger carrier | |
CN216712964U (en) | Equipment is salvaged to branch for hydraulic engineering | |
CN207295818U (en) | River environmental protection salvaging machine | |
CN217974546U (en) | Underwater dredging movable multifunctional operation platform | |
JP2012149516A (en) | Water surface cleaning device, clamshell bucket for water surface cleaning, and water surface cleaning method | |
CN213233758U (en) | Hidden culvert dredging equipment device | |
CN107288639B (en) | Deep-sea mining is saved along soaring formula of restricting can lifting device | |
CN2635741Y (en) | High-efficient dredging machine | |
CN103231997A (en) | Deep-foundation grab crane | |
CN107090904A (en) | Remote mud digs shipping unit | |
CN104875854B (en) | A kind of shell collecting system and method | |
CN218148598U (en) | Multifunctional underwater operation platform dredging device | |
KR100277293B1 (en) | Operation automation device of super fishery | |
CN201896326U (en) | Loading system of dredging earth mover | |
FI89530C (en) | SYSTEM FOER MUDDRING AV HAVSBOTTNEN | |
CN203419695U (en) | Deep-foundation grab crane | |
CN204551375U (en) | Without anchorage cage mattress sinking laying device | |
CN106193167B (en) | A kind of Sediment Transport device of dredger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |