CN103465742A - Walking-semi-submersible amphibious engineering ship - Google Patents
Walking-semi-submersible amphibious engineering ship Download PDFInfo
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- CN103465742A CN103465742A CN2013103908432A CN201310390843A CN103465742A CN 103465742 A CN103465742 A CN 103465742A CN 2013103908432 A CN2013103908432 A CN 2013103908432A CN 201310390843 A CN201310390843 A CN 201310390843A CN 103465742 A CN103465742 A CN 103465742A
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Abstract
The invention provides a walking-semi-submersible amphibious engineering ship which comprises a ship body. A ship body slideway is formed below the ship body. A sliding mechanism is disposed between the ship body and the ship body slideway. The sliding mechanism controls the ship body to slide on the slideway. A ship body semi-submersible lower body is disposed below the ship body. The lower surface of the ship body is connected with the ship body semi-submersible lower body through a plurality of un-down telescoping mechanisms. A slideway semi-submersible lower body is disposed below the slideway, The lower surface of the slideway is connected with the slideway semi-submersible lower body through a plurality of un-down telescoping mechanisms. A depth measuring system is further disposed on the ship body. The walking-semi-submersible amphibious engineering ship can be used as a semi-submersible engineering ship in deep water and as a walking engineering ship which can walk on seabed mud surface in shallow water areas or beach areas, and accordingly working water depth of the ship is expanded, work range and purpose of the ship are expanded, the amphibious engineering ship is more suitable for developing oceanographic engineering, effective technical support is provided for offshore construction, and promising application prospect is achieved.
Description
Technical field
The present invention relates to the latent amphibious auxiliary vessel of a kind of walking half.
Background technology
China National Petroleum Corporation (CNPC) finds that in Bohai Bay beach areas the reserves scale reaches the elephant of 1,000,000,000 tons---oil field, fort, the southeast, Ji, its reserves are equivalent to increase newly in whole nation year in recent years half left and right of verified oil reserves, this be continue the beginning of the sixties in last century Daqing oil field find since the most breathtaking discovery of China's petroleum exploration domain, be also the maximum oil field that the CHINESE OFFSHORE area is found, will bring China the 5th reserve increasing peak in history.Beach sea oil mainly refers to by land and extends (across coastline, a part is on land, and another part extends to sea) or whole oil field to sea all but the more shallow oil field of the depth of water in the sea.In sea beach area, usually adopt and build the road or the mode such as trestle is connected with the land bank, be engaged in Hai Tongjinglu ,Tan Hai land, the beach bank raised platform around a well of building in the petroleum operation activity and the petroleum installations of being correlated with is called Tan Hai land bank petroleum installations.And Ji Dong will become another ten million ton of new oil field of CNPC.At present, the every exploitation preliminary preparation of Nanpu Oilfield is already in full swing.
Marine site, China intertidal zone is wide, and the region resource of applicable construction marine wind electric field is horn of plenty more.But, due to the impact that the tidewater fluctuation rises and falls, intertidal zone average depth at the incoming tide only has 1.5 meters, and in one day, the high water level time length only has 2～3 hours.Due to the restriction that is subject to the depth of water and engineering time, wind-powered electricity generation foundation construction and field engineering have been proposed to new requirement, need the marine engineering technology of upgrading to solve an a series of difficult problem, expand the comprehensive strength of China's offshore novel energy exploitation.
Now no matter be beach sea oil development, or the intertidal zone marine wind electric field installs, and is substantially all to adopt to build the road or the mode such as trestle is connected with the land bank, and the engineering construction time is long, and cost is high.In the face of the flourish marine oil and gas of Chinese future, wide ocean wind-power market, domestic shipbuilding circles and ocean engineering circle are necessary to join together, form and make a concerted effort, the construction ship that is directly used in sea, Very Shallow Water beach, tidal zone is built in independent development, to promote the Core equipment development of domestic ocean engineering.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide the latent amphibious auxiliary vessel of a kind of walking half, for solving, prior art Very Shallow Water beach is extra large, tidal zone lacks construction ship, need to adopt and to build the road or the mode such as trestle is connected with the land bank, the problem that the engineering construction time is long, cost is high.
Reach for achieving the above object other relevant purposes, the invention provides the latent amphibious auxiliary vessel of a kind of walking half, it comprises hull, the below of hull is provided with the hull slideway, be provided with slide mechanism between hull and hull slideway, slide mechanism is controlled hull and is slided on the hull slideway, the hull below is provided with the latent lower body of hull half, the lower surface of hull is connected by a plurality of upper and lower telescoping mechanisms with the latent lower body of hull half, hull slideway below is provided with the latent lower body of slideway half, the lower surface of hull slideway is connected by a plurality of upper and lower telescoping mechanisms with the latent lower body of slideway half, sounding system also is housed on hull.
Preferably, slide mechanism is the push-and-pull hydraulic cylinder group.
Preferably, upper and lower telescoping mechanism is the lifting hydraulic ram.
Further preferably, the lifting hydraulic ram is positioned at a sealed type column inside, and the upper end of sealed type column and the lower surface of hull are fixed, and the upper surface that the lower end of sealed type column and hull half dived lower body is fixed.Further preferred, the sealed type column is divided into column epimere and column hypomere, the upper end of column epimere and the lower surface of hull are fixed, the upper surface that the lower end of column hypomere and hull half dived lower body is fixed, the column epimere inserts in the column hypomere, the column epimere can move up and down with respect to the column hypomere, the contact surface sealing of column epimere and column hypomere.Further preferred, be provided with the O RunddichtringO between the contact surface of column epimere and column hypomere.Another kind is further preferred, between the outer circumference surface of the upper surface of column hypomere and column epimere, is provided with lip-type packing.
Further preferably, the lifting hydraulic ram is positioned at a sealed type column inside, and the lower surface of the upper end of sealed type column and hull slideway is fixed, and the upper surface that the lower end of sealed type column and slideway half dived lower body is fixed.Further preferred, the sealed type column is divided into column epimere and column hypomere, the lower surface of the upper end of column epimere and hull slideway is fixed, the upper surface that the lower end of column hypomere and slideway half dived lower body is fixed, the column epimere inserts in the column hypomere, the column epimere can move up and down with respect to the column hypomere, the contact surface sealing of column epimere and column hypomere.Further preferred, be provided with the O RunddichtringO between the contact surface of column epimere and column hypomere.Another kind is further preferred, between the outer circumference surface of the upper surface of column hypomere and column epimere, is provided with lip-type packing.
Preferably, the latent lower body of hull half is two strip slide plates that are positioned at both sides, hull below, the latent lower body of slideway half is two strip slide plates that are positioned at both sides, hull slideway below, the strip slide plate is along the line of travel horizontal positioned of hull, and the strip slide plate is connected by the upper and lower telescoping mechanism of a row with hull or hull slideway.
As mentioned above, the latent amphibious auxiliary vessel of walking of the present invention half has following beneficial effect:
The latent amphibious auxiliary vessel of this walking half, in the situation that the depth of water is as the semisubmersible auxiliary vessel, in the Very Shallow Water territory or the zone, seabeach, the walking auxiliary vessel can advance on the mud face of seabed, enlarge the operating depth of boats and ships, enlarged operating range and the purposes of boats and ships, more be applicable to growing ocean engineering cause, for offshore construction provides the actv. technical support, it is a kind of useful improvement with application prospect.
The accompanying drawing explanation
Fig. 1 is shown as the structural representation of walking of the present invention half latent amphibious auxiliary vessel.
Fig. 2 is shown as the birds-eye view of the half latent amphibious auxiliary vessel of the walking shown in Fig. 1.
Fig. 3 is shown as the right elevation of the half latent amphibious auxiliary vessel of the walking shown in Fig. 1.
Fig. 4 is shown as slide on the hull slideway structural representation of a segment distance of hull that the walking shown in Fig. 2 half dives amphibious auxiliary vessel.
Fig. 5 is shown as the lifting hydraulic ram of the half latent amphibious auxiliary vessel of the walking shown in Fig. 1 and the enlarged diagram of sealed type column.
Fig. 6 is shown as the walking shown in Fig. 1 half and dives amphibious auxiliary vessel at the schematic diagram of exercising than the territory, deep-sea.
Fig. 7 is shown as the walking shown in Fig. 1 half and dives amphibious auxiliary vessel at the schematic diagram of exercising than neritic zone.
Fig. 8 a is shown as the latent amphibious auxiliary vessel of the walking shown in Fig. 1 half and is parked in the schematic diagram on the mud face of seabed.
Fig. 8 b is shown as the right elevation of the half latent amphibious auxiliary vessel of the walking shown in Fig. 8 a.
Fig. 9 a is shown as the dive schematic diagram of the first step that amphibious auxiliary vessel walks on the mud face of seabed of the walking shown in Fig. 8 a half.
Fig. 9 b is shown as the right elevation of the half latent amphibious auxiliary vessel of the walking shown in Fig. 9 a.
Figure 10 a is shown as the dive schematic diagram of the second step that amphibious auxiliary vessel walks on the mud face of seabed of the walking shown in Fig. 8 a half.
Figure 10 b is shown as the right elevation of the half latent amphibious auxiliary vessel of the walking shown in Figure 10 a.
Figure 11 a is shown as the dive schematic diagram of the 3rd step that amphibious auxiliary vessel walks on the mud face of seabed of the walking shown in Fig. 8 a half.
Figure 11 b is shown as the right elevation of the half latent amphibious auxiliary vessel of the walking shown in Figure 11 a.
Figure 12 a is shown as the dive schematic diagram of the 4th step that amphibious auxiliary vessel walks on the mud face of seabed of the walking shown in Fig. 8 a half.
Figure 12 b is shown as the right elevation of the half latent amphibious auxiliary vessel of the walking shown in Figure 12 a.
Figure 13 a is shown as the dive schematic diagram of the 5th step that amphibious auxiliary vessel walks on the mud face of seabed of the walking shown in Fig. 8 a half.
Figure 13 b is shown as the right elevation of the half latent amphibious auxiliary vessel of the walking shown in Figure 13 a.
The element numbers explanation
1 hull
2 hull slideways
3 push-and-pull hydraulic cylinder groups
The latent lower body of 4 hulls half
The latent lower body of 5 slideways half
6 lifting hydraulic rams
7 sealed type columns
71 column epimeres
72 column hypomeres
73 O RunddichtringOs
74 lip-type packings
8 sounding systems
9 loop wheel machines
10 helicopter decks
The specific embodiment
Below by particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can understand other advantages of the present invention and effect easily by the disclosed content of this specification sheets.
Refer to Fig. 1 to Figure 13 b.Notice, appended graphic the illustrated structure of this specification sheets, ratio, size etc., equal contents in order to coordinate specification sheets to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the present invention, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under the effect that the present invention can produce and the purpose that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, in this specification sheets, quote as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the present invention.
As shown in Figures 1 to 4, the invention provides the latent amphibious auxiliary vessel of a kind of walking half, it comprises hull 1, the below of hull 1 is provided with hull slideway 2, be provided with slide mechanism between hull 1 and hull slideway 2, slide mechanism is controlled hull 1 and is slided on hull slideway 2, hull 1 below is provided with the latent lower body 4 of hull half, the lower surface of hull 1 is connected by a plurality of upper and lower telescoping mechanisms with the latent lower body 4 of hull half, hull slideway 2 belows are provided with the latent lower body 5 of slideway half, the lower surface of hull slideway 2 is connected by a plurality of upper and lower telescoping mechanisms with the latent lower body 5 of slideway half, sounding system 8 also is housed on hull 1.Sounding system 8 is for testing the degree of depth of hull 1 to seabed, and this sounding system comprises that echo depth sounder, signal receive and disposal system, on signal reception and the indoor control housing of disposal system Access Control.
Ballast tank, loop wheel machine 9 and helicopter deck 10 be can also arrange on hull 1, construction equipment used, material etc. also can be placed.
Wherein, slide mechanism can be push-and-pull hydraulic cylinder group 3 or other can control the slide control mechanism that hull 1 slides on hull slideway 2, upper and lower telescoping mechanism can be lifting hydraulic ram 6 or other can make hull half dive lower body 4 with respect to hull 1 move up and down, slideway half is dived the pushing handle telescopic control mechanism that lower body 5 moves up and down with respect to hull slideway 2.
Dive lower body 4, slideway half of hull half dived and played buoyancy aid and equilibrium activity when lower body 5 navigate by water in deep water, the regional support as walking such as in shallow water or Hai, shoal, beach.
This walking half is dived amphibious auxiliary vessel under the control of slide mechanism, and hull 1 can slide on hull slideway 2; Under the control of upper and lower telescoping mechanism, hull half is dived, and lower body 4 can move up and down with respect to hull 1, slideway half is dived, and lower body 5 can move up and down with respect to hull slideway 2.Hull half lower body 4, slideway half lower body 5 of diving of diving be the leak tightness cavity, in darker water, hull half dive lower body 4, slideway half dive lower body 5 and up and down telescoping mechanism buoyancy is provided in water, can regulate by the length of regulating upper and lower telescoping mechanism the size of buoyancy.
As shown in Figures 1 to 5, when lifting hydraulic ram 6 is between hull 1 and the latent lower body 4 of hull half, lifting hydraulic ram 6 is positioned at sealed type column 7 inside, and the lower surface of the upper end of sealed type column 7 and hull 1 is fixed, and the upper surface that the lower end of sealed type column 7 and hull half dived lower body 4 is fixed.As shown in Figure 5, sealed type column 7 is divided into column epimere 71 and column hypomere 72, the lower surface of the upper end of column epimere 71 and hull 1 is fixed, the upper surface that the lower end of column hypomere 72 and hull half dived lower body 4 is fixed, column epimere 71 inserts in column hypomere 72, column epimere 71 can move up and down with respect to column hypomere 72, and column epimere 71 seals with the contact surface of column hypomere 72.
When lifting hydraulic ram 6 is between hull slideway 2 and the latent lower body 5 of slideway half, lifting hydraulic ram 6 is positioned at sealed type column 7 inside, the lower surface of the upper end of sealed type column 7 and hull slideway 2 is fixed, and the upper surface that the lower end of sealed type column 7 and slideway half dived lower body 5 is fixed.As shown in Figure 5, sealed type column 7 is divided into column epimere 71 and column hypomere 72, the lower surface of the upper end of column epimere 71 and hull slideway 2 is fixed, the upper surface that the lower end of column hypomere 72 and slideway half dived lower body 5 is fixed, column epimere 71 inserts in column hypomere 72, column epimere 71 can move up and down with respect to column hypomere 72, and column epimere 71 seals with the contact surface of column hypomere 72.
Wherein, between the contact surface of column epimere 71 and column hypomere 72, be provided with O RunddichtringO 73, O RunddichtringO 73 mainly plays sealing function; Be provided with lip-type packing 74 between the outer circumference surface of the upper surface of column hypomere 72 and column epimere 71, lip-type packing 74 is mainly to prevent that the foreign matters such as mud from entering the contact surface between column epimere 71, column hypomere 72.O RunddichtringO 73 and lip-type packing 74, can guarantee that the foreign matters such as silt enters in the annular seal space that column epimere 71 and column hypomere 72 form.
Even there is no water in the situation that water is superficial, bring to and walking process in, sealed type column 7 can prevent that the foreign matter such as muddy water from entering in lifting hydraulic ram 6, in water and in mud, sealed type column 7 can protect lifting hydraulic ram 6 not to be corroded.
Hull half is dived lower body 4 for being positioned at two strip slide plates of both sides below hull, slideway half is dived lower body 5 for being positioned at two strip slide plates of both sides below the hull slideway, the strip slide plate is along the line of travel horizontal positioned of hull 1, and the strip slide plate is connected by the upper and lower telescoping mechanism of a row with hull 1 or hull slideway 2.The shape that the two ends of this strip slide plate can be designed to be upturned is placed as two strip slide plates symmetries of the partly latent lower body 4 of hull simultaneously, as the also symmetry placement of two strip slide plates of slideway half latent lower body 5.In this project ship walking process, be subject to uniform bearing force like this, the situation such as can not tumble.
The latent auxiliary vessel of this walking half has two kinds of mode of operations, the one, in darker water, form work with the semisubmersible auxiliary vessel, the latent lower body 4 of hull half, the latent lower body 5 of slideway half and upper and lower telescoping mechanism provide buoyancy in water, hull 1 on the water, and can be regulated by the length of regulating upper and lower telescoping mechanism the size of buoyancy; The 2nd, in the superficial even anh situation of water, the latent lower body 4 of hull half, the latent lower body 5 of slideway half directly are seated on the mud face of seabed, upper and lower telescoping mechanism rises hull 1 and hull slideway 2, this project ship in more shallow water or on anh mud face walking advance, after arriving job location, hull 1 is dropped to extreme lower position, start construction operation.
Walking half is dived, and on beach, extra large construction access road should be to be ready to construction appliance and material at harbour to amphibious auxiliary vessel, after shipment, sails into than deepwater field, and then, from deeply to the shallow Tan Hai that enters, now the sounding system on ship 8 sounds the depth of the water at any time, as shown in Figure 6.After the depth of water shoals gradually, improve the height of the latent lower body 4 of hull half, the partly latent lower body 5 of slideway by upper and lower telescoping mechanism, when the lower body 4 that moves on until hull half is dived, the partly latent lower body 5 of slideway soon touch seabed mud face, as shown in Figure 7.
As shown in Fig. 8 a, Fig. 8 b, when the partly latent amphibious auxiliary vessel of this walking need to bring to, telescoping mechanism promotes the partly latent lower body 4 of hull up and down, the partly latent lower body 5 of slideway moves down, and the latent lower body 4 of hull half, the partly latent lower body 5 of slideway are seated on the mud face of seabed reposefully.After this project ship brings to, start walking on the mud face of seabed, until the construction point, navigation and walking advance and rely on position fixing system guidance on ship to carry out.
The process that the latent amphibious auxiliary vessel of this walking half carries out walking on the mud face, as shown in Fig. 9 a to Figure 13 b, comprises the following steps:
One) by the height of upper and lower telescoping mechanism raising hull half latent lower body 4, and by slide mechanism, hull 1 is slided along hull slideway 2, now the latent lower body 5 of slideway half still is seated on the mud face of seabed, for whole auxiliary vessel provides support, as shown in Fig. 9 a, Fig. 9 b;
Two) after slide mechanism promotes 1 to travel position of hull, telescoping mechanism reduces the height of hull half latent lower body 4 up and down, the latent lower body 4 of hull half steadily is seated on the mud face of seabed, as shown in Figure 10 a, Figure 10 b;
Three) upper and lower telescoping mechanism improves the dive height of lower body 5 of slideway half, makes the slideway half lower body 5 mud face aweigh of diving, as shown in Figure 11 a, Figure 11 b;
Four) after the latent lower body 5 of slideway half shrinks and puts in place, slide mechanism pulls hull slideway 2 to advance, until get back to the below of hull 1 fully, and as shown in Figure 12 a, Figure 12 b;
Five), after hull slideway 2 slides and puts in place, upper and lower telescoping mechanism promotes the latent lower body 5 of slideway half and is seated in reposefully on the mud face of seabed, and prepares the walking of next stroke, as shown in Figure 13 a, Figure 13 b.
In sum, the walking of the present invention half amphibious auxiliary vessel of diving, in the situation that the depth of water as the semisubmersible auxiliary vessel, can be carried out the work such as the laying, offshore platform dismounting, the support of deep water ocean engineering of sea pipe and extra large cable; Also can be used as workboat, can carry out the work such as deep water piling, the support of deep water robot, the pipe transportation of deep water sea, use as the interim maintenance center of deep water (being dock); In the Very Shallow Water territory or the zone, seabeach, the amphibious auxiliary vessel of walking can carry out the work such as laying of ocean wind-powered electricity generation installation, the petroleum drilling and mining operation of sea, beach, piling, sea pipe and extra large cable, enlarged the operating depth of boats and ships, even also can advance and construction operation at anh beach, enlarge operating range and the purposes of boats and ships, more be applicable to growing ocean engineering cause.So the present invention has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, be modified or be changed above-described embodiment.Therefore, such as in affiliated technical field, have and usually know that the knowledgeable, not breaking away from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (10)
1. a walking half amphibious auxiliary vessel of diving, it is characterized in that: it comprises hull, the below of described hull is provided with the hull slideway, be provided with slide mechanism between described hull and hull slideway, described slide mechanism is controlled described hull and is slided on the hull slideway, described hull below is provided with the latent lower body of hull half, the lower surface of described hull is connected by a plurality of upper and lower telescoping mechanisms with the latent lower body of hull half, described hull slideway below is provided with the latent lower body of slideway half, the lower surface of described hull slideway is connected by a plurality of upper and lower telescoping mechanisms with the latent lower body of slideway half, sounding system also is housed on described hull.
2. the walking according to claim 1 half amphibious auxiliary vessel of diving, it is characterized in that: described slide mechanism is the push-and-pull hydraulic cylinder group.
3. the walking according to claim 1 half amphibious auxiliary vessel of diving, it is characterized in that: described upper and lower telescoping mechanism is the lifting hydraulic ram.
4. the walking according to claim 3 half amphibious auxiliary vessel of diving, it is characterized in that: described lifting hydraulic ram is positioned at a sealed type column inside, the upper end of described sealed type column and the lower surface of hull are fixed, and the upper surface that the lower end of described sealed type column and hull half dived lower body is fixed.
5. the walking according to claim 4 half amphibious auxiliary vessel of diving, it is characterized in that: described sealed type column is divided into column epimere and column hypomere, the upper end of described column epimere and the lower surface of hull are fixed, the upper surface that the lower end of described column hypomere and hull half dived lower body is fixed, described column epimere inserts in described column hypomere, described column epimere can move up and down with respect to described column hypomere, the contact surface sealing of described column epimere and described column hypomere.
6. the walking according to claim 3 half amphibious auxiliary vessel of diving, it is characterized in that: described lifting hydraulic ram is positioned at a sealed type column inside, the lower surface of the upper end of described sealed type column and hull slideway is fixed, and the upper surface that the lower end of described sealed type column and slideway half dived lower body is fixed.
7. the walking according to claim 6 half amphibious auxiliary vessel of diving, it is characterized in that: described sealed type column is divided into column epimere and column hypomere, the lower surface of the upper end of described column epimere and hull slideway is fixed, the upper surface that the lower end of described column hypomere and slideway half dived lower body is fixed, described column epimere inserts in described column hypomere, described column epimere can move up and down with respect to described column hypomere, the contact surface sealing of described column epimere and described column hypomere.
8. according to the latent amphibious auxiliary vessel of the described walking of claim 5 or 7 half, it is characterized in that: between the contact surface of described column epimere and described column hypomere, be provided with the O RunddichtringO.
9. according to the latent amphibious auxiliary vessel of the described walking of claim 5 or 7 half, it is characterized in that: between the outer circumference surface of the upper surface of described column hypomere and described column epimere, be provided with lip-type packing.
10. the walking according to claim 1 half amphibious auxiliary vessel of diving, it is characterized in that: the latent lower body of described hull half is two strip slide plates that are positioned at both sides, hull below, the latent lower body of described slideway half is two strip slide plates that are positioned at both sides, hull slideway below, described strip slide plate is along the line of travel horizontal positioned of hull, and described strip slide plate is connected by the upper and lower telescoping mechanism of a row with hull or hull slideway.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310390843.2A CN103465742B (en) | 2013-08-30 | 2013-08-30 | The latent amphibious working ship of walking half |
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| CN201310390843.2A CN103465742B (en) | 2013-08-30 | 2013-08-30 | The latent amphibious working ship of walking half |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106114768A (en) * | 2016-06-23 | 2016-11-16 | 浙江海洋大学 | A kind of sea, river through transport multipurpose working ship |
| CN109747356A (en) * | 2017-11-03 | 2019-05-14 | 益阳天华两栖车艇有限公司 | A kind of aquaplane of amphibious vehicle |
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| CN109747356B (en) * | 2017-11-03 | 2022-01-25 | 益阳天华两栖车艇有限公司 | Water skis of amphibious vehicle |
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|---|---|
| CN103465742B (en) | 2016-06-15 |
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