CN103863034B - A kind of leisure Amphibian bicycle - Google Patents
A kind of leisure Amphibian bicycle Download PDFInfo
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- CN103863034B CN103863034B CN201410039017.8A CN201410039017A CN103863034B CN 103863034 B CN103863034 B CN 103863034B CN 201410039017 A CN201410039017 A CN 201410039017A CN 103863034 B CN103863034 B CN 103863034B
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- speed increaser
- impeller
- floating drum
- driven sprocket
- land
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Abstract
The invention discloses a kind of leisure Amphibian bicycle, the power system of this bicycle comprises stretcher, support and impeller, and stretcher is connected with drive sprocket, and impeller is by the afterbody of support installing at vehicle body; Driving system mainly comprises the first speed increaser, the second speed increaser, flexible axle, short flexible axle, land and water power-transfer clutch, driven sprocket and drive sprocket; First speed increaser and the second speed increaser are all gear speedup case, installation land and water, the front end power-transfer clutch of the input shaft of the first speed increaser, and the input end of land and water power-transfer clutch is connected with driven sprocket, and driven sprocket is connected with drive sprocket by chain; The output shaft of the first speed increaser is connected with the second speed increaser by driving snake; Impeller is connected by short flexible axle with the output shaft of the second speed increaser; The present invention converts water, land feature operation is simple and convenient, without any need for mounting or dismounting; The present invention gives riding between impulse impeller an over-speed gear ratio, ensures that bicycle can obtain fast speed in water.
Description
Technical field
The present invention relates to a kind of bicycle, particularly relate to a kind of Amphibian bicycle that can meet amusement and recreation and body-building.
Background technology
Along with the raising of people's living standard, people require also more and more higher for the equipment of amusement and recreation.The rise of particularly amusement on water project, has driven people to the demand of Amphibian bicycle.This bicycle is cheap, of many uses, by realizing people's traveling on the water to the transformation of ordinary bicycle, the hope of scale overwater entertainment.But along with emerging in an endless stream of various Amphibian bicycle, there is following problem in structure and driving device:
1, with the Amphibian bicycle of inflating air cryptomere floating drum, safety, less stable;
2, when the conversion of some Amphibian bicycle water, Lu Gongneng, dismounting complex procedures, operating difficulties;
3, the unreasonable speed over water that causes of drive mechanism design is excessively slow, and complex structure causes manufacturing cost too high.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of lightweight, overall structure compact stable, leisure Amphibian bicycle that land and water is all safe and reliable.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of leisure Amphibian bicycle, comprises vehicle body, wheel and handle; Also comprise driving system, power system and buoyancy system;
Described power system comprises stretcher, support and impeller, and stretcher is connected with drive sprocket, and impeller is by the afterbody of support installing at vehicle body;
Described driving system mainly comprises the first speed increaser, the second speed increaser, flexible axle, short flexible axle, land and water power-transfer clutch, driven sprocket and drive sprocket; First speed increaser and the second speed increaser are all gear speedup case, installation land and water, the front end power-transfer clutch of the input shaft of the first speed increaser, and the input end of land and water power-transfer clutch is connected with driven sprocket, and driven sprocket is connected with drive sprocket by chain; The output shaft of the first speed increaser is connected with the second speed increaser by driving snake; Impeller is connected by short flexible axle with the output shaft of the second speed increaser;
Buoyancy system comprises front floating drum, rear floating drum and movable floor; Front floating drum and rear floating drum are all 2, and front floating drum and rear floating drum are arranged on the front and back wheel left and right sides of vehicle body respectively by movable floor symmetry;
Described land and water power-transfer clutch comprises bearing, on-of bolt and the first spring; The input shaft of the first speed increaser is arranged on driven sprocket by bearing, driven sprocket is provided with mounting hole, mounting hole penetrates into the radial slot of input shaft from driven sprocket, is provided with the first spring and on-of bolt in mounting hole, and on-of bolt connects driven sprocket and input shaft.
For realizing the object of the invention further, preferably, described flexible axle and short flexible axle are all that the spring wire layer be closely intertwined by multilayer is formed.Described impeller periphery is provided with impeller chimney, and impeller is arranged on impeller base, is provided with bevel-gear sett in impeller base, and impeller base is connected with the second speed increaser by adapting pipe; Second speed increaser is provided with projection, and the support of the afterbody of vehicle body is provided with a block, and projection is fixed on the base of the second speed increaser, and impeller chimney and impeller base connect firmly; Projection and a block all have mounting hole, and bolt is through the installing port on projection and a block, and bolt periphery is provided with the second spring, and projection is arranged on the support of vehicle body by bolt.Described front floating drum and rear floating drum are the hollow structures be made up of the light material of four pieces of rectangles; Light material Bian corrosion-resistant steel, moulding or aluminium alloy extrusions.Described movable floor moves gusset, bias by short movable gusset, long-term job and connects soon and form; Short movable gusset one end is connect soon by bias and is connected with floating drum, and other end moveable hinge and long-term job are moved gusset and connected, and one end moveable hinge that gusset is moved in long-term job is fixed on the support of vehicle body.Described support forms U-shaped structure with steel plate bending.
The present invention on bicycle structure mainly at front-wheel with trailing wheel both sides are each fixes a folding floating drum.When road travels, floating drum and impulse impeller all can realize shrinking by movable floor, are close to wheel both sides, reduce bicycle horizontal area, thus reduce windage.Bicycle will when the water surface travels, and can put down floating drum by the movable floor in both sides, and what realize on the water surface is floating, and puts down the impulse impeller after car, the power of stretcher is supplied to the impulse impeller after being arranged on car, realizes the quick advance at the water surface.Power transmission between stretcher and impulse impeller adopts soft axle transmission, and to adapt to the mobile demand of each parts, be configured with one-level or secondary acceleration device therebetween, make to ride when rotating speed is unhappy, bicycle still can obtain surge power.Front and back floating drum is made up of sheet material, and floating drum front lower portion cuts out a sinusoidal pattern surface, to ensure at utmost to alleviate water resistance.Wheel both sides are close to and perpendicular to the ground when floating drum upper surface shrinks.
Relative to prior art, tool of the present invention has the following advantages:
1, in bicycle body middle part of the present invention, power-transfer clutch is installed at axle place.When travelling on the water, the latch in pressure power-transfer clutch, makes latch stick into the keyway of interior axle, realizes the power transmission of gear to change-speed box.Land route when travelling extract latch, makes power not be transferred to impulse impeller.Convert water, land feature operation is simple and convenient, without any need for mounting or dismounting;
2, the present invention is provided with the first speed increaser, the sprocket wheel of the sprocket wheel connected by stretcher by chain-driving first speed increaser connects, and realizes the first order and accelerates.Be connected with driving snake after first speed increaser, the power obtained by the first speed increaser passes to the second speed increaser and wheel rotation below by driving snake, thus promotes dolly and realize the water surface and travel.There is propeller system impeller at bicycle body rear portion by support installing.Driving system of the present invention is ridden between impulse impeller an over-speed gear ratio, can select 1:(5 ~ 50 according to motion requirement) transmitting ratio, ensure bicycle can obtain fast speed in water.
3, the present invention fixes a folding floating drum at front-wheel and trailing wheel both sides by movable floor is each, and movable floor makes floating drum freely pack up and to put down; When road travels, floating drum and impulse impeller all can realize shrinking by movable floor, are close to wheel both sides, reduce bicycle horizontal area, thus reduce windage.Bicycle will when the water surface travels, and can put down floating drum by the movable floor in both sides, and what realize on the water surface is floating, and puts down the impulse impeller after car, the power of stretcher is supplied to the impulse impeller after being arranged on car, realizes the quick advance at the water surface.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of leisure Amphibian bicycle of the present invention;
Fig. 2 is the plan structure schematic diagram of leisure Amphibian bicycle of the present invention;
Fig. 3 is the left TV structure schematic diagram of leisure Amphibian bicycle of the present invention;
Fig. 4 is the movable floor member collapses schematic diagram of leisure Amphibian bicycle of the present invention;
Fig. 5 is the land and water power-transfer clutch enlarged diagram of leisure Amphibian bicycle of the present invention.
Shown in figure: vehicle body 1, first speed increaser 2, rear floating drum 3, support 4, second speed increaser 5, impeller 6, impeller chimney 7, flexible axle 8, stretcher 9, front floating drum 10, prop up block 11, land and water power-transfer clutch 12, bias connects 13 soon, set pin 14, short movable floor 15, floor 16 is moved in long-term job, driven sprocket 17, drive sprocket 18, bearing 19, on-of bolt 20, first spring 21, input shaft 22, short flexible axle 23, chain 24, moveable hinge 25, second spring 26, bolt 27, adapting pipe 29, impeller base 30, gusset 31 is moved in long-term job.
Detailed description of the invention
For understanding the present invention better, below in conjunction with accompanying drawing, the present invention will be further described, but embodiments of the present invention are not limit so.
A kind of leisure Amphibian bicycle, by ordinary bicycle transformation, reaches and passes unimpeded freely on the water, have the function of amusement and leisure.The part that the present invention is identical with standard bicycle structure and fuction does not illustrate.
As Figure 1-3, a kind of leisure Amphibian bicycle, comprises vehicle body 1, wheel and handle; Also comprise driving system, power system and buoyancy system;
Power system comprises stretcher 9, support 4 and impeller 6, and stretcher 9 is connected with drive sprocket 18, and impeller 6 is arranged on the afterbody of vehicle body by support 4;
Driving system mainly comprises the first speed increaser 2, second speed increaser 5, flexible axle 8, short flexible axle 23, land and water power-transfer clutch 12, driven sprocket 17 and drive sprocket 18; First speed increaser 2 and the second speed increaser 5 are all gear speedup case, installation land and water, the front end power-transfer clutch 12 of the input shaft 22 of the first speed increaser 2, and the input end of land and water power-transfer clutch 12 is connected with driven sprocket 17, and driven sprocket 17 is connected with drive sprocket 18 by chain 24; The output shaft of the first speed increaser 2 is connected with the second speed increaser 5 by driving snake 8; Impeller 6 is connected by short flexible axle 23 with the output shaft of the second speed increaser 5;
Buoyancy system comprises front floating drum 10, rear floating drum 3 and short movable floor 15 and floor 16 is moved in long-term job; Front floating drum 10 and rear floating drum 3 are all 2, and front floating drum 10 and rear floating drum 3 move respectively by short movable floor 15 and long-term job the front and back wheel left and right sides that floor 16 symmetry is arranged on vehicle body 1.
Flexible axle 8 and short flexible axle 23 are all that the spring wire layer be closely intertwined by multilayer is formed.
As shown in Figure 5, land and water power-transfer clutch 12 comprises bearing 19, on-of bolt 20 and the first spring 21; The input shaft 22 of the first speed increaser 2 is arranged on driven sprocket 17 by bearing 19, driven sprocket 17 is provided with mounting hole, mounting hole penetrates into the radial slot of input shaft 22 from driven sprocket 17, be provided with the first spring 21 and on-of bolt 20 in mounting hole, on-of bolt 20 connects driven sprocket 17 and input shaft 22; The on-of bolt 20 that rotates through of driven sprocket 17 passes on input shaft 22, realizes synchronous axial system; When needs bicycle is walked on land, outside dial-out on-of bolt 20, compress the first spring 21, the end B of on-of bolt 20 departs from input shaft 22, on-of bolt 20 90-degree rotation is unclamped fixing, land and water power-transfer clutch 12 can only dally on the bearing 19 of input shaft 22, realizes the switching of land and water different conditions.
As shown in Figure 2, impeller 6 periphery is provided with impeller chimney 7, prevents rubbish waterborne on the impact of impeller 6.Impeller 6 is arranged on impeller base 30, is provided with bevel-gear sett in impeller base 30, realizes the change of transmission direction, and impeller base 30 is connected with the second speed increaser 5 by adapting pipe 29; Second speed increaser 5 is provided with projection C, the support 4 of vehicle body is provided with a block 11, prop up block 11 and the support 4 Bian formation rigid unitary that is fixedly connected, projection C is fixed on the base of the second speed increaser 5, impeller chimney 7 and impeller base 30 connect firmly, and impeller chimney 7, impeller base 30, adapting pipe 29, second speed increaser 5 form the entirety of a rigidity.Projection C and a block 11 all have mounting hole, and bolt 27 is through projection C and a block 11, and bolt periphery is provided with the second spring 26, and projection C is arranged on the support 4 of vehicle body by bolt 27; Pretension second spring 26; the second speed increaser 5 left surface is kept to be adjacent to respective face on support 4; lock bolt 27; the object of such assembling is when bicycle is walked in water; when obstacle encountered by impeller chimney, the entirety of the rigidity that impeller chimney 7, impeller base 30, adapting pipe 29, second speed increaser 5 are formed can rotate around bolt 27, and fulcrum is the endoporus of a block 11; avoiding obstacles, the unlikely damage of protection impeller.
Bicycle pedal rod 9 is fixedly connected with drive sprocket 18, manpower is delivered to driven sprocket 17 from the drive sprocket 18 foot-driven lever 9 by chain 24, power is input to the input shaft of the second speed increaser 5 by flexible axle 8 by the output shaft of the first speed increaser 2, be sent to impeller 6 through too short flexible axle 23.Power transmission route is: foot-driven lever 9 → drive sprocket 18 → chain, 24 → driven sprocket 17 → land and water power-transfer clutch 12 → input shaft 22 → the first speed increaser 2 → flexible axle 8 → the second speed increaser 5 → short flexible axle 23 → impeller 6.Driving system is ridden between impulse impeller an over-speed gear ratio, can select, generally can realize 1:(5 ~ 50 according to motion requirement) transmitting ratio, ensure that bicycle can obtain fast speed in water
As shown in Figure 3, front floating drum 10 and rear floating drum 3 are the hollow structures be made up of the light material of four pieces of rectangles; Light material can Bian corrosion-resistant steel, moulding or aluminium alloy extrusions; Front floating drum 10 and rear floating drum 3 produce buoyancy in water, carry the load of car load.
As shown in Figure 4, movable floor moves gusset 16, bias by short movable gusset 15, long-term job and connects 13 soon and form; Short movable gusset 15 one end connects 13 soon by bias and is connected with floating drum, and other end moveable hinge 25 and long-term job are moved gusset 16 and connected, and one end moveable hinge 25 that gusset 16 is moved in long-term job is fixed on the after poppet of vehicle body.Short movable gusset 15, long-term job to move between gusset 16 Bian with hinged.In Fig. 3, the left side is that movable floor stretches situation, and the right is that movable floor folds situation.
Moveable hinge 25 is one be similar to bolt connecting device, and just the bolted connection bit length of moveable hinge is slightly larger than the thickness being connected plate, and ensure when the nut 34 is tightened, being connected two plates can relatively rotate.Jiao Jie Zhuo in the present invention is this framing member.The junction that gusset 16 moves for short movable gusset 15, long-term job stretch fast with folding principle as shown in Figure 4, one end of moveable hinge 25 is pin-and-hole structure, pin-and-hole center is A2, the eccentric cylindrical center connecing 13 is soon A1, center, hole is also A2, when the handle that bias connects 13 is soon in shown position, two plates be connected are locking state, and the size of coupling mechanism force can be realized by adjusting nut A3.When lifting handle and around A2 90-degree rotation, because of eccentric relation, two plates be connected are releasing orientation, now can relatively rotate.The Jie He Chu Zhuo needing quick change activity gusset relative position also need lock in the present invention is this framing member.
Time in water, unclamp bias and connect 13 soon and put down floating drum, make short movable floor 15 and long-term job move floor 16 in alignment time (the movable floor that in Fig. 3, the left side indicates), locking bias connects 13 soon, and such four floating drums can open and swim on the water surface.Bicycle on land time, unclamp bias to connect soon, floor 16 is moved in folding short movable floor 15 and long-term job, and utilize the hollow hole on eccentric fast connecting handle, be buckled on set pin 14 that long-term job moves on gusset 16 (the movable floor that in Fig. 3, the right indicates), such floating drum can fold and be fixed on leaning to one side of bicycle simultaneously.
Support 4 forms U-shaped structure with steel plate bending, be connected with the plate be fixed on vehicle frame by using moveable hinge 25, when bicycle is walked in water, as shown in Figure 1, short movable gusset one end is connected on rear deck seat, other end moveable hinge and long-term job are moved gusset 31 and are connected, and one end moveable hinge that gusset 31 is moved in long-term job is fixed on support 4, when bicycle is walked in water, keep short movable gusset, long-term job is moved gusset 31 and is extended for straight line (shown in Fig. 1), support 4 is kept to be in horizontality, when bicycle is walked on land, short movable gusset and long-term job are moved gusset 31 fold, the height of lifting bracket 4, namely by a block 11, bolt 27, second speed increaser 5, adapting pipe 29, impeller base 30 promotes impeller 6 away from ground, impeller 6 is not caused to touch ground obstacle, improve traveling comfort by bike.The principle of work of movable gusset is identical with movable floor, is not described here.
The speed of stretcher 9 of the present invention drives the driven sprocket 17 on the first speed increaser 2 by the drive sprocket 18 that stretcher 9 connects, realize the first order and accelerate; The speed that first speed increaser 2 obtains subsequently is passed to the second speed increaser 5, second speed increaser 5 by driving snake 8 and is connected by the short flexible axle 23 of transmission with impulse impeller 6, and the second speed increaser 5 drives impulse impeller 6 to rotate, and realizes secondary and accelerates.Obtain a speedup revolution ratio from stretcher 9 to impulse impeller 6, gait of march faster can be obtained in water under slower stretcher speed, not only laborsaving but also facilitate.Also the over-speed gear ratio needed is realized by a speed increaser.
When bicycle enters water, short movable gusset and long-term job are moved gusset 31 to be decontroled in line, by support 4, impulse impeller 6 is put down, latch 20 in power-transfer clutch 12 is put into the keyway on input shaft 22, the driven sprocket 17 that the drive sprocket 18 that the power of stretcher 9 is connected by stretcher 9 and chain-driving first speed increaser 2 connect.The power that first speed increaser 2 obtains subsequently passes to the second speed increaser 5, second speed increaser 5 by driving snake 8 and realizes impulse impeller 6 by the short flexible axle 23 of transmission and rotate and drive impulse impeller 6 to fetch water, and produces the power of advance waterborne.
The front floating drum 10 and the rear floating drum 3 that are arranged on vehicle body 1 front and back wheel both sides are arranged on the front and back wheel left and right sides of vehicle body 1 respectively by short movable gusset 15 symmetry, move floor 16 by short movable floor 15 and long-term job realize the folding of floating drum and launch, floating drum unclamps when launching and connects 13 soon, floating drum is put down make short movable floor 15 and long-term job move floor 16 locking and quick-connecting is as on the left of Fig. 3 in line, floating drum can keep horizontality; Unclamp when floating drum folds and connect soon, rotate up floating drum, short movable floor 15 and long-term job are moved floor 16 and folds, make to connect soon and tangle set pin 14 locking and quick-connecting, floating drum just can vertically be fixed.
In order to reduce resistance when floating drum advances in water, the front lower portion of front floating drum 10 and rear floating drum 3 being cut out an arcuate surface, reducing water resistance when bicycle advances.Front floating drum 10 and rear floating drum 3 are in hollow structure simultaneously, reduce weight, increase buoyancy.
When travelling on land, perpendicular to the ground when front floating drum 10 and rear floating drum 3 are packed up, and be close to wheel both sides, reduce bicycle horizontal area, thus reduce windage.
Claims (5)
1. lie fallow an Amphibian bicycle, comprises vehicle body, wheel and handle; Characterized by further comprising driving system, power system and buoyancy system;
Described power system comprises stretcher, support and impeller, and stretcher is connected with drive sprocket, and impeller is by the afterbody of support installing at vehicle body;
Described driving system mainly comprises the first speed increaser, the second speed increaser, flexible axle, short flexible axle, land and water power-transfer clutch, driven sprocket and drive sprocket; First speed increaser and the second speed increaser are all gear speedup case, installation land and water, the front end power-transfer clutch of the input shaft of the first speed increaser, and the input end of land and water power-transfer clutch is connected with driven sprocket, and driven sprocket is connected with drive sprocket by chain; The output shaft of the first speed increaser is connected with the second speed increaser by driving snake; Impeller is connected by short flexible axle with the output shaft of the second speed increaser;
Described buoyancy system comprises front floating drum, rear floating drum and movable floor; Front floating drum and rear floating drum are all 2, and front floating drum and rear floating drum are arranged on the front and back wheel left and right sides of vehicle body respectively by movable floor symmetry;
Described land and water power-transfer clutch comprises bearing, on-of bolt and the first spring; The input shaft of the first speed increaser is arranged on driven sprocket by bearing, driven sprocket is provided with mounting hole, mounting hole penetrates into the radial slot of input shaft from driven sprocket, is provided with the first spring and on-of bolt in mounting hole, and on-of bolt connects driven sprocket and input shaft.
2. leisure Amphibian bicycle according to claim 1, is characterized in that, described flexible axle and short flexible axle are all that the spring wire layer be closely intertwined by multilayer is formed.
3. leisure Amphibian bicycle according to claim 1, is characterized in that, described impeller periphery is provided with impeller chimney, and impeller is arranged on impeller base, is provided with bevel-gear sett in impeller base, and impeller base is connected with the second speed increaser by adapting pipe; Second speed increaser is provided with projection, and the support of the afterbody of vehicle body is provided with a block, and projection is fixed on the base of the second speed increaser, and impeller chimney and impeller base connect firmly; Projection and a block all have mounting hole, and bolt is through the installing port on projection and a block, and bolt periphery is provided with the second spring, and projection is arranged on the support of vehicle body by bolt.
4. leisure Amphibian bicycle according to claim 1, is characterized in that, described front floating drum and rear floating drum are the hollow structures be made up of the light material of four pieces of rectangles; Light material Bian moulding or aluminium alloy extrusions.
5. leisure Amphibian bicycle according to claim 1, is characterized in that, described support forms U-shaped structure with steel plate bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039017.8A CN103863034B (en) | 2014-01-26 | 2014-01-26 | A kind of leisure Amphibian bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039017.8A CN103863034B (en) | 2014-01-26 | 2014-01-26 | A kind of leisure Amphibian bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103863034A CN103863034A (en) | 2014-06-18 |
| CN103863034B true CN103863034B (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410039017.8A Expired - Fee Related CN103863034B (en) | 2014-01-26 | 2014-01-26 | A kind of leisure Amphibian bicycle |
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| Country | Link |
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| CN (1) | CN103863034B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904054A (en) * | 2017-04-07 | 2017-06-30 | 共井电子科技（苏州）有限公司 | Frame is organized outside amphibious bicycle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4559892A (en) * | 1982-10-15 | 1985-12-24 | Cascallana Raul S | Amphibious vehicle |
| CN2222636Y (en) * | 1995-07-04 | 1996-03-20 | 解庆文 | Vehicle capable of travelling on water |
| CN201235718Y (en) * | 2008-07-16 | 2009-05-13 | 赵洪仁 | Wading apparatus of two-wheel cycle |
| CN203713448U (en) * | 2014-01-26 | 2014-07-16 | 华南理工大学 | Amphibious bicycle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11170829A (en) * | 1996-10-14 | 1999-06-29 | Takao Ishihara | Amphibious bicycle |
-
2014
- 2014-01-26 CN CN201410039017.8A patent/CN103863034B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4559892A (en) * | 1982-10-15 | 1985-12-24 | Cascallana Raul S | Amphibious vehicle |
| CN2222636Y (en) * | 1995-07-04 | 1996-03-20 | 解庆文 | Vehicle capable of travelling on water |
| CN201235718Y (en) * | 2008-07-16 | 2009-05-13 | 赵洪仁 | Wading apparatus of two-wheel cycle |
| CN203713448U (en) * | 2014-01-26 | 2014-07-16 | 华南理工大学 | Amphibious bicycle |
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| Publication number | Publication date |
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| CN103863034A (en) | 2014-06-18 |
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Granted publication date: 20160302 Termination date: 20220126 |