CN105000140B - A kind of jacking system - Google Patents
A kind of jacking system Download PDFInfo
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- CN105000140B CN105000140B CN201510287153.3A CN201510287153A CN105000140B CN 105000140 B CN105000140 B CN 105000140B CN 201510287153 A CN201510287153 A CN 201510287153A CN 105000140 B CN105000140 B CN 105000140B
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Abstract
The invention discloses a kind of jacking system, belong to jackstone leveling ship accessory field.The jacking system includes chute mechanism and elevating mechanism, and the chute mechanism includes：The round tube and rectangular tube being fixedly connected, the elevating mechanism include：The dynamic clamping device that is set on the chute mechanism, it is set on the chute mechanism and determines clamping device and lift cylinder, one end of the lift cylinder is fixed on the dynamic clamping device, and the other end of the lift cylinder is fixed on described to be determined on clamping device.The jacking system includes chute mechanism and elevating mechanism, chute mechanism can complete free raising and lowering under the driving of elevating mechanism, so enable that chute mechanism is lifted with water depth ratio, so that the height in controlling chute mechanism to stretch into water, is easy to underwater bed leveling.
Description
Technical field
The present invention relates to jackstone leveling ship accessory field, more particularly to a kind of jacking system.
Background technology
Jackstone leveling ship is a kind of professional ship for underwater bed leveling operation.It is provided with jackstone leveling ship and is slipped
Pipe, the elephant trunk is tubular structure and is fixed on hull that elephant trunk is the passage of feeding and blanking, the feeding port that building stones pass through elephant trunk
The bottom is entered eventually into elephant trunk inside and then by the feed opening of elephant trunk, realizes flattening the purpose of bedding under water.
Realize it is of the invention during, inventor find prior art at least there is problems with：
Elephant trunk of the prior art is fixed on hull, and when the water depth ratio of the location of leveling ship, elephant trunk is stretched into
Height in water is constant all the time, is that underwater bed leveling is made troubles.
The content of the invention
In order to solve the highly uncontrollable problem of elephant trunk of the prior art, a kind of lifting is the embodiment of the invention provides
System.The technical scheme is as follows：
A kind of jacking system is the embodiment of the invention provides, the jacking system includes chute mechanism and elevating mechanism, institute
Stating chute mechanism includes：The round tube and rectangular tube being fixedly connected, offer the first opening on the round tube, described first opens
Mouth is extended to the other end of the round tube by one end of the round tube, and the rectangular tube includes the first side plate and described the
The second side plate and two connecting plates of connection first side plate and second side plate that side plate parallel interval is set, institute
State and the second opening is offered on the first side plate, second opening extends to the another of the rectangular tube by one end of the rectangular tube
One end, the round tube is located in the described second opening and first opening is against on second side plate, second side
Correspondence first opening is provided with multiple dog-houses on plate, and multiple baffle plates, the baffle plate are provided with the outer wall of the rectangular tube
Selectively block the dog-house；
The elevating mechanism includes：The dynamic clamping device that is set on the chute mechanism, it is set in the chute mechanism
On determine clamping device and lift cylinder, one end of the lift cylinder is fixed on the dynamic clamping device, it is described lifting oil
The other end of cylinder is fixed on described to be determined on clamping device；
The chute mechanism also includes mounting bracket, and the mounting bracket is arranged on the outer wall of second side plate, the gear
Plate is slideably positioned in the mounting bracket.
Further, the mounting bracket is arranged on the outer wall of second side plate of the dog-house both sides, the gear
Plate includes transverse slat connected vertically and riser, and the riser is slideably positioned in the mounting bracket, and the transverse slat is against the peace
The top shelved.
Specifically, the dynamic clamping device includes：Dynamic support, dynamic clamping cylinder and two dynamic clamping plates, the dynamic support
The 4th side plate that is set including the 3rd side plate and the 3rd side plate parallel interval and connect the 3rd side plate and described the
The dynamic support connecting plate of two of four side plates, offers the 3rd opening on the 3rd side plate, the rectangular tube is located at the dynamic branch
In support, the round tube outside the rectangular tube stretches out the dynamic support, two dynamic clampings by the described 3rd opening
Plate is surround and is arranged on the outer wall of the round tube outside the dynamic support, and one end of two dynamic clamping plates is cut with scissors respectively
It is connected on the outer wall of the 3rd side plate, an other end for the dynamic clamping plate is hinged with the cylinder body of the dynamic clamping cylinder,
The other end of another dynamic clamping plate is hinged with the telescopic end of the dynamic clamping cylinder；
It is described to determine clamping device and include：It is fixed on the hull of leveling ship and determines support, clamp locking oil cylinder and two clamps
Tight plate, the fixed support includes the 6th side plate of the 5th side plate and the 5th side plate parallel interval setting and connects described
Two of 5th side plate and the 6th side plate support connecting plate surely, and the 4th opening, the side are offered on the 5th side plate
Shape pipe be located at it is described determine in support, the round tube outside the rectangular tube is stretched out by the described 4th opening described determines branch
Support, two described determine clamping plate around being arranged on the outer wall of the round tube, and two described one end for determining clamping plate are divided
It is not hinged on and is provided with the outer wall of the 5th side plate, the cylinder of the other end for determining clamping plate and the clamp locking oil cylinder
Body is hinged, and another described other end for determining clamping plate is hinged with the telescopic end of the clamp locking oil cylinder；
One end of the lift cylinder is arranged in the dynamic support, and the other end of the lift cylinder is arranged on described fixed
In support.
Further, it is respectively arranged with the first friction plate on two dynamic clamping plates, two described to determine on clamping plate point
The second friction plate is not provided with, and first friction plate and second friction plate are arranged at the outer wall of the round tube.
Further, the elevating mechanism also includes hull connecting plate, and the hull connecting plate is fixed with described by bearing pin
Support connection, the hull connecting plate is fixed on the hull of the leveling ship.
Further, the dynamic support and it is described determine to be provided with two in support stretch out plate, two dynamic clamping plates
Respectively with the dynamic support on two described in stretch out plate and be hinged, two described determine clamping plate respectively with it is described determine in support two
Plate is stretched out described in individual to be hinged.
Further, the lift cylinder is two, and two lift cylinders are located at the described 3rd opening both sides respectively
The 3rd side plate outer wall on.
Further, the first otic placode is respectively arranged with the outer wall of the 3rd side plate of the 3rd opening both sides, institute
The second otic placode, the cylinder body of the lift cylinder and institute are respectively arranged with the outer wall of the 5th side plate for stating the 4th opening both sides
State the first otic placode to be connected by the first bearing pin, the telescopic end of the lift cylinder is connected with second otic placode by the second bearing pin
Connect.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：The embodiment of the invention provides a kind of lifting
System, the jacking system includes chute mechanism and elevating mechanism, and chute mechanism can be completed freely under the driving of elevating mechanism
Raising and lowering, so that chute mechanism can be lifted with water depth ratio, so that in controlling chute mechanism to stretch into water
Highly, it is easy to underwater bed leveling.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the cross section structure diagram of chute mechanism provided in an embodiment of the present invention；
Fig. 2 is the cross section structure diagram of the chute mechanism for being provided with dog-house provided in an embodiment of the present invention；
Fig. 3 is the cross section structure diagram of baffled chute mechanism provided in an embodiment of the present invention；
Fig. 4 is the main structure diagram of baffle plate provided in an embodiment of the present invention；
Fig. 5 is the cross-sectional view of baffle plate provided in an embodiment of the present invention；
Fig. 6 is the partial structural diagram of chute mechanism provided in an embodiment of the present invention；
Fig. 7 is the structural representation of elevating mechanism provided in an embodiment of the present invention；
Fig. 8 is the cross section structure diagram of dynamic clamping device provided in an embodiment of the present invention；
Fig. 9 is the cross section structure diagram for determining clamping device provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment
A kind of jacking system is the embodiment of the invention provides, as shown in fig. 7, the jacking system includes chute mechanism a and liter
Descending mechanism, as shown in Figure 1, Figure 2 with shown in Fig. 6, chute mechanism a includes the round tube 1 and rectangular tube 2 that are fixedly connected, on round tube 1
The first opening is offered, the first opening is extended to the other end of round tube 1 by one end of round tube 1, and rectangular tube 2 is to include first
The second side plate 2b and the two of connection the first side plate 2a and the second side plate 2b that side plate 2a and the first side plate 2a parallel intervals are set
Individual connecting plate 2c, offers the second opening on the first side plate 2a, the second opening extends to rectangular tube 2 by one end of rectangular tube 2
The other end, round tube 1 is located in the second opening and the first opening is against on the second side plate 2b, and correspondence first is opened on the second side plate 2b
Mouth is provided with multiple dog-houses 3, as shown in Fig. 3, Fig. 4 and Fig. 5, multiple baffle plates 4 is provided with the outer wall of rectangular tube 2, and baffle plate 4 is optional
Block with selecting on dog-house 3.Wherein, round tube 1 can be steel pipe, and the first opening opened up on round tube 1 can be using cutting
Mode is processed, and the first side plate 2a, the second side plate 2b of rectangular tube 2 and two connecting plates can be using steel plate welding
Into round tube 1 and rectangular tube 2 can be by being welded and fixed, and the position and quantity of dog-house 3 can be according to actual work
Depending on situation.Additionally, the size of the second opening can be engaged with the outer wall dimension of round tube 1, round tube 1 can be opened with second
Mouth is fixedly connected, the stability for increasing chute mechanism a.
The elevating mechanism includes：The dynamic clamping device 6 being set on chute mechanism a, the clamp being set on chute mechanism a
Tight device 7 and lift cylinder 8, one end of lift cylinder 8 are arranged on dynamic clamping device 6, and the other end of lift cylinder 8 is arranged on
Determine on clamping device 7.
Specifically, chute mechanism a can also include mounting bracket 5, and mounting bracket 5 is arranged on the outer wall of the second side plate 2b,
Baffle plate 4 is slideably positioned in mounting bracket 5.
Further, mounting bracket 5 is arranged on the outer wall of both sides the second side plates 2b of dog-house 3, and baffle plate 4 includes vertical connection
Transverse slat and riser, riser is slideably positioned in mounting bracket 5, and transverse slat is against the top of mounting bracket 5, and the transverse slat of baffle plate 4 can be real
Existing spacing function.
As shown in figure 8, dynamic clamping device 6 includes：Dynamic support 601, dynamic clamping cylinder 602 and two dynamic clamping plates 603, move
Support 601 includes the 4th side plate 601b and the connection the 3rd of the 3rd side plate 601a and the setting of the 3rd side plate 601a parallel intervals
The dynamic support connecting plate 601c of two of side plate 601a and the 4th side plate 601b, offers the 3rd opening 604 on the 3rd side plate 601a,
Rectangular tube 2 is located in dynamic support 601, and the round tube 1 outside rectangular tube 2 stretches out dynamic support 601, two by the 3rd opening 604
Dynamic clamping plate 603 is on the outer wall of the round tube 1 being arranged in outside dynamic support 601, and two one end of dynamic clamping plate 603 point
It is not hinged on the outer wall of the 3rd side plate 601a, an other end for dynamic clamping plate 603 cuts with scissors with the cylinder body of dynamic clamping cylinder 602
Connect, the other end of another dynamic clamping plate 603 is hinged with the telescopic end of dynamic clamping cylinder 602.Dynamic support 601 can be by plurality of plates
Material is welded.Chute mechanism a encirclements wherein and with chute mechanism a are kept certain gap by dynamic support 601.Two dynamic clampings
One end that plate 603 is connected with dynamic clamping cylinder 602 can stretch out, in order to arrange dynamic clamping cylinder 602.
As shown in figure 9, determine clamping device 7 including：It is fixed on the hull of leveling ship and determines support 701, clamp locking oil cylinder
702 and two determine clamping plate 703, support surely 701 include that the 5th side plate 701a and the 5th side plate 701a parallel intervals set the
Two of six side plate 701b and connection the 5th side plate 701a and the 6th side plate 701b support connecting plate 701c, the 5th side plate surely
The 4th opening 704 is offered on 701a, rectangular tube 2 is located in support 701 surely, and the round tube 1 outside rectangular tube 2 is opened by the 4th
Mouthfuls 704 stretch out fixed support 701, and two determine that clamping plate 703 is circular to be arranged on the outer wall of round tube 1, and two are determined clamping plate
703 one end is respectively hinged on the outer wall of the 5th side plate 701a, other end for determining clamping plate 703 and clamp locking oil cylinder
702 cylinder body is hinged, and another other end for determining clamping plate 703 is hinged with the telescopic end of clamp locking oil cylinder 702.Surely 701 are supported
Can be welded by multi-sheets.Determining one end that clamping plate 703 is connected with clamp locking oil cylinder 702 for two can stretch out, with
It is easy to arrangement clamp locking oil cylinder 702.
One end of lift cylinder 8 is arranged in dynamic support 601, and the other end of lift cylinder 8 is arranged in support 701 surely.
Specifically, the first friction plate 9a is respectively arranged with two dynamic clamping plates 603, two are determined on clamping plate 703 respectively
The second friction plate 9b, the first friction plate 9a and the second friction plate 9b is provided with to be arranged at the outer wall of round tube 1, wherein, the
One friction plate 9a and the second friction plate 9b can be made up of high-abrasive material, and the first friction plate 9a and the second friction plate 9b are used to
Increase two dynamic clamping plates 603 and two frictional force for determining clamping plate 703 and the outer wall of round tube 1.Additionally, the first friction plate 9a and
Second friction plate 9b can determine clamping plate 703 and be welded as a whole with two dynamic clamping plates 603 and two respectively.
Specifically, elevating mechanism can also include hull connecting plate 10, and hull connecting plate 10 passes through bearing pin 11 and determines support
701 connections, hull connecting plate 10 is fixed on the hull of leveling ship.Wherein, hull connecting plate 10 can be with the hull of leveling ship
Connect as one, hull connecting plate 10 can be two, two hull connecting plates 10 be located at respectively support 701 both sides surely determine branch
On support connecting plate 701c, can be installed on each hull connecting plate 10 two bearing pins 11 for fixation support 701 surely.
Specifically, move support 601 and can be provided with two in support 701 surely and stretch out plate 12, two dynamic clamping plates 603
Plate 12 is stretched out with dynamic two supported on 601 to be hinged, determine clamping plate 703 for two and stretched with two in fixed support 701 respectively respectively
Ejecting plate 12 is hinged.
Specifically, lift cylinder 8 can be two, and two lift cylinders 8 are located at the dynamic branch of 604 both sides of the 3rd opening respectively
On the outer wall of support 601.
Further, the first otic placode 605 is respectively arranged with the outer wall of the 3rd side plate 601a of 604 both sides of the 3rd opening,
Be respectively arranged with the second otic placode 705 on the outer wall of the 5th side plate 701a of the 4th 704 both sides of opening, the cylinder body of lift cylinder 8 with
First otic placode 605 is connected by the first bearing pin 13, and the telescopic end of lift cylinder 8 is connected with the second otic placode 705 by the second bearing pin 14
Connect.
Specifically, the center of circle of round tube 1 is passed straight through where the outer wall of the first side plate 2a.
The operation principle of elevating mechanism provided in an embodiment of the present invention is following is a brief introduction of, it is specific as follows：
When chute mechanism a needs to rise, the clamp locking oil cylinder 702 that clamping device 7 is determined in control makes its piston rod (flexible
End) stretch out, you can ensure that the second friction plate 9b and chute mechanism a depart from, so realize determining clamping device 7 and chute mechanism a it
Between unlock；Meanwhile, the dynamic clamping cylinder 602 of the dynamic clamping device 6 of operation makes its piston rod bounce back, then can ensure the first friction plate 9a
Contacted with chute mechanism a, so as to realize that dynamic clamping device 6 and chute mechanism a's is locked, then operate lift cylinder 8 it is lived
Stopper rod stretches out, that is, realize the rising of chute mechanism a, when chute mechanism a ascensional ranges reach oil cylinder range, now grasps
The clamp locking oil cylinder 702 that work determines clamping device 7 makes its piston rod bounce back, and finally makes to determine clamping device 7 and chute mechanism a is locked,
Then operating the dynamic clamping cylinder 602 of dynamic clamping device 6 stretches out its piston rod, finally makes clamping device 6 and chute mechanism a
Unblock, is then lifted out oil cylinder 8 and retracts to shortest route, then repeats to act and then realize the continuous rising of chute mechanism a above,
Until rising to certain position, when the dog-house 3 of chute mechanism a can be connected with the position of the elevating hopper on the hull of leveling ship
Stop rising, then make clamping device 6 and to determine clamping device 7 locked with chute mechanism a, will elephant trunk corresponding with elevating hopper
Baffle plate 4 on the dog-house 3 of mechanism a is removed, and remaining dog-house 3 is blocked with baffle plate 4, and then is begun through elevating hopper and opened
Beginning feeding, building stones enter into the bottom eventually through chute mechanism a.Chute mechanism a step-down operations, referring to its lifting operations process.
Jacking system provided in an embodiment of the present invention, the jacking system includes chute mechanism and elevating mechanism, chute mechanism
Free raising and lowering can be completed under the driving of elevating mechanism, so that chute mechanism can be risen with water depth ratio
Drop, so that the height in controlling chute mechanism to stretch into water, is easy to underwater bed leveling.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (8)
1. a kind of jacking system, it is characterised in that the jacking system includes chute mechanism and elevating mechanism, the chute mechanism
Including：The round tube and rectangular tube being fixedly connected, offer the first opening on the round tube, first opening is by the circle
One end of shape pipe extends to the other end of the round tube, and the rectangular tube includes that the first side plate is parallel with first side plate
Two connecting plates of spaced second side plate and connection first side plate and second side plate, first side plate
On offer the second opening, second opening is extended to the other end of the rectangular tube by one end of the rectangular tube, described
Round tube is located in the described second opening and first opening is against on second side plate, correspondence institute on second side plate
State the first opening and be provided with multiple dog-houses, multiple baffle plates are provided with the outer wall of the rectangular tube, the baffle plate selectively keeps off
State dog-house in residence；
The elevating mechanism includes：The dynamic clamping device that is set on the chute mechanism, it is set on the chute mechanism
Determine clamping device and lift cylinder, one end of the lift cylinder is fixed on the dynamic clamping device, the lift cylinder
The other end is fixed on described to be determined on clamping device；
The chute mechanism also includes mounting bracket, and the mounting bracket is arranged on the outer wall of second side plate, and the baffle plate is slided
It is dynamic to be arranged in the mounting bracket.
2. jacking system according to claim 1, it is characterised in that the mounting bracket is arranged in the dog-house both sides
On the outer wall of second side plate, the baffle plate includes transverse slat connected vertically and riser, and the riser is slideably positioned in described
In mounting bracket, the transverse slat is against the top of the mounting bracket.
3. jacking system according to claim 1, it is characterised in that the dynamic clamping device includes：Dynamic support, dynamic clamping
Oil cylinder and two dynamic clamping plates, the dynamic support include the 4th side that the 3rd side plate and the 3rd side plate parallel interval are set
Plate and two dynamic support connecting plates of the 3rd side plate and the 4th side plate are connected, the is offered on the 3rd side plate
Three openings, the rectangular tube is located in the dynamic support, and the round tube outside the rectangular tube is by the described 3rd opening
The dynamic support is stretched out, two dynamic clamping plates surround and are arranged on the outer wall of the round tube outside the dynamic support,
And one end of two dynamic clamping plates is respectively hinged on the outer wall of the 3rd side plate, dynamic clamping plate it is another
End is hinged with the cylinder body of the dynamic clamping cylinder, and the other end of another dynamic clamping plate is flexible with the dynamic clamping cylinder
End is hinged；
It is described to determine clamping device and include：Clamping plate is determined in the determine support, clamp locking oil cylinder and two being fixed on the hull of leveling ship,
The fixed support includes the 6th side plate of the 5th side plate and the 5th side plate parallel interval setting and connects the 5th side
Two of plate and the 6th side plate support connecting plate surely, and the 4th opening, the rectangular tube position are offered on the 5th side plate
Determine in support in described, the round tube outside the rectangular tube is stretched out by the described 4th opening described determines support, two
It is described to determine clamping plate around being arranged on the outer wall of the round tube, and two described one end for determining clamping plate are respectively hinged at
It is provided with the outer wall of the 5th side plate, the other end for determining clamping plate is hinged with the cylinder body of the clamp locking oil cylinder,
Another described other end for determining clamping plate is hinged with the telescopic end of the clamp locking oil cylinder；
One end of the lift cylinder is arranged in the dynamic support, and the other end of the lift cylinder determines support installed in described
On.
4. jacking system according to claim 3, it is characterised in that be respectively arranged with first on two dynamic clamping plates
Friction plate, two described to determine to be respectively arranged with the second friction plate on clamping plate, first friction plate and second friction plate
It is arranged at the outer wall of the round tube.
5. jacking system according to claim 3, it is characterised in that the elevating mechanism also includes hull connecting plate, institute
State hull connecting plate to be connected with the fixed support by bearing pin, the hull connecting plate is fixed on the hull of the leveling ship.
6. jacking system according to claim 3, it is characterised in that the dynamic support and described determine to be provided with support
Two are stretched out plate, two dynamic clamping plates respectively with the dynamic support on two described in stretch out plate and be hinged, two are described fixed
Clamping plate respectively with stretch out plate described in two determined in support and be hinged.
7. jacking system according to claim 3, it is characterised in that the lift cylinder is two, two liftings
Oil cylinder is located on the outer wall of the 3rd side plate of the described 3rd opening both sides respectively.
8. jacking system according to claim 7, it is characterised in that the 3rd side plate of the 3rd opening both sides
The first otic placode is respectively arranged with outer wall, second is respectively arranged with the outer wall of the 5th side plate of the 4th opening both sides
Otic placode, the cylinder body of the lift cylinder is connected with first otic placode by the first bearing pin, the telescopic end of the lift cylinder with
Second otic placode is connected by the second bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510287153.3A CN105000140B (en) | 2015-05-29 | 2015-05-29 | A kind of jacking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510287153.3A CN105000140B (en) | 2015-05-29 | 2015-05-29 | A kind of jacking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105000140A CN105000140A (en) | 2015-10-28 |
| CN105000140B true CN105000140B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510287153.3A Active CN105000140B (en) | 2015-05-29 | 2015-05-29 | A kind of jacking system |
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| CN (1) | CN105000140B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926629B (en) * | 2016-06-29 | 2017-11-21 | 山东港湾建设集团有限公司 | Underwater rubble bed leveling barge |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1001094C2 (en) * | 1995-08-30 | 1997-03-03 | K C I B V | Computer controlled lifting mechanism for cylindrical pipe or rod |
| DE19721635C2 (en) * | 1997-05-23 | 2002-05-08 | Preussag Spezialtiefbau Gmbh | Device for pulling a pipe tour |
| JP5264853B2 (en) * | 2010-10-01 | 2013-08-14 | 第一建設機工株式会社 | Construction method of deck lifting work platform ship and offshore wind power generation facility |
| CN203846477U (en) * | 2013-01-10 | 2014-09-24 | 中交第一航务工程局有限公司 | Riprap leveling guiding mechanism |
| CN103924574B (en) * | 2013-01-10 | 2016-02-03 | 中交第一航务工程局有限公司 | Rubble leveling device |
| CN103215935B (en) * | 2013-04-17 | 2015-07-01 | 武汉船用机械有限责任公司 | Hydraulic lifting device |
| CN104652348B (en) * | 2015-02-16 | 2017-01-11 | 中交一航局第一工程有限公司 | Deep-water foundation bed rock throwing system |
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2015
- 2015-05-29 CN CN201510287153.3A patent/CN105000140B/en active Active
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| CN105000140A (en) | 2015-10-28 |
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