阅读说明：本技术 一种防汛功能的新能源汽车 (New energy automobile of flood prevention function ) 是由 黄秉润 于 2020-08-03 设计创作，主要内容包括：本发明涉及一种防汛功能的新能源汽车,包括车体、车轮、电池和动力系统,所述电池位于所述车体内,所述电池安装于防水装置中,所述防水装置用以防止水接触所述电池；所述车体底部还设有升起装置和漂浮装置,所述升起装置用以升起汽车,所述漂浮装置用以使汽车漂浮于水面上,还包括用于控制升起装置和漂浮装置的控制器。有益效果：当因城市内涝或洪水导致水位升高时,升起装置能自动将车辆升起,防水装置能防止水接触到电池,当水势非常大时,漂浮装置能使车辆漂浮在水面上。(The invention relates to a new energy automobile with a flood prevention function, which comprises an automobile body, wheels, a battery and a power system, wherein the battery is positioned in the automobile body and is arranged in a waterproof device, and the waterproof device is used for preventing water from contacting the battery; the vehicle body bottom is also provided with a lifting device and a floating device, the lifting device is used for lifting the vehicle, the floating device is used for floating the vehicle on the water surface, and the vehicle body bottom also comprises a controller used for controlling the lifting device and the floating device. Has the advantages that: when the water level rises due to urban waterlogging or flood, the lifting device can automatically lift the vehicle, the waterproof device can prevent water from contacting the battery, and the floating device can enable the vehicle to float on the water surface when the water potential is very large.)

1. The new energy automobile with the flood prevention function is characterized by comprising an automobile body (1), wheels (2), a battery (3) and a power system, wherein the battery (3) is located in the automobile body (1), the battery (3) is installed in a waterproof device, and the waterproof device is used for preventing water from contacting the battery (3); the bottom of the vehicle body (1) is also provided with a lifting device and a floating device, the lifting device is used for lifting the vehicle, the floating device is used for floating the vehicle on the water surface, and the vehicle further comprises a controller used for controlling the lifting device and the floating device.

2. The new energy automobile with the flood prevention function according to claim 1, characterized in that the waterproof device comprises a waterproof bin (4) and a water-stop plate (5), the waterproof bin (4) is installed in the automobile body (1), the waterproof bin (4) is a cuboid cavity, the water-stop plate (5) is fixedly connected to the bottom of the waterproof bin (4), a water-stop cavity (17) is formed in a space surrounded by the water-stop plate (5) and the bottom of the waterproof bin (4), the battery (3) is fixedly connected to the top of the water-stop plate (5), and a heat dissipation device used for dissipating heat of the battery (3) is further arranged in the waterproof bin (4).

3. The new energy automobile with the flood prevention function according to claim 2, characterized in that a plurality of drain holes (6) are formed in the water-stop plate (5) at even intervals.

4. The new energy automobile with the flood prevention function according to claim 3, characterized in that the heat dissipation device comprises a plurality of fans (9) and exhaust pipes (7), the fans (9) are installed around the battery (3) at uniform intervals, the exhaust pipes (7) are arranged on four side faces and the top face of the waterproof bin (4) at uniform intervals, each exhaust pipe (7) penetrates through the waterproof bin (4) and is communicated with the inner cavity of the waterproof bin (4), each exhaust pipe (7) is communicated with a check valve (8), the check valves (8) allow air to flow out of the waterproof bin (4), and prevent water from flowing out of the waterproof bin (4) through the exhaust pipes (7).

5. The new energy automobile with the flood prevention function according to claim 4, wherein a plurality of battery liquid level sensors (18) are uniformly installed at the top of the water-stop plate (5) and the bottom of the water-stop cavity (17) at intervals, temperature sensors (19) are arranged on the batteries (3), and each battery liquid level sensor (18), each temperature sensor (19) and each fan (9) are electrically connected with the controller.

6. The new energy automobile with the flood prevention function according to claim 1, characterized in that the lifting devices are provided with four lifting devices which are uniformly arranged at the bottom of the automobile body (1), each lifting device comprises a first hydraulic cylinder (10), a second hydraulic cylinder (11) and a chassis (12), the end parts of the first hydraulic cylinder (10) and the second hydraulic cylinder (11) are hinged to the bottom of the automobile body (1), the end part of a piston rod of the second hydraulic cylinder (11) is hinged to the periphery of one side of the cylinder body of the first hydraulic cylinder (10), the second hydraulic cylinder (11) can drive the first hydraulic cylinder (10) to swing to a vertical state, and the chassis (12) is hinged to the end part of the piston rod of the first hydraulic cylinder (10).

7. The new energy automobile with the flood prevention function according to claim 6, characterized in that an automobile liquid level sensor (15) is installed at the center of each wheel (2), two horizontal sensors (16) are installed at the top of the automobile body (1), and each automobile liquid level sensor (15), each horizontal sensor (16), each hydraulic cylinder I (10) and each hydraulic cylinder II (11) are electrically connected with the controller.

8. The new energy automobile with the flood prevention function according to claim 7, characterized in that the floating device comprises a rubber raft (13) and an air pump (14), the rubber raft (13) and the air pump (14) after being contracted are both mounted at the bottom of the automobile body (1), an air outlet of the air pump (14) is communicated with the rubber raft (13), and the air pump (14) is electrically connected with the controller.

9. The new energy automobile with the flood prevention function according to claim 8, wherein the rubber raft (13) comprises a connecting section (131) and a rubber raft body (132) which are communicated with each other, the connecting section (131) is fixedly connected to the bottom of the automobile body (1), an air outlet of the air pump (14) is communicated with the connecting section (131), and the rubber raft body (132) can be retracted to the bottom of the connecting section (131) or expanded and unfolded after being inflated by the air pump (14).

10. The new energy automobile with the flood prevention function according to claim 9, wherein a plurality of balance air bags (133) are arranged around the rubber raft body (132) in a communicated manner at uniform intervals, the top of the rubber raft body (132) is further communicated with an anti-collision enclosure (134), the anti-collision enclosure (134) encloses a cuboid cavity with an open top, and the automobile body (1) is located in the cavity enclosed by the anti-collision enclosure (134).

Technical Field

The invention relates to an automobile, in particular to a new energy automobile with a flood prevention function.

Background

The automobile is an important vehicle for people to travel and walk instead and is also an important tool for logistics transportation, and the traditional automobile usually takes gasoline or diesel oil as fuel. However, gasoline and diesel oil belong to petroleum products, pollution is caused by combustion, and the storage capacity of petroleum is limited, so that the petroleum is not inexhaustible energy or clean energy. With the development of automobiles, new energy automobiles are increasingly close to the visual field of people and are gradually popularized, the existing new energy automobiles mainly rely on batteries, but as is well known, the batteries are afraid of soaking water, and when rainstorm comes in summer, waterlogging easily occurs in cities, and with the continuous increase of water levels of rivers and lakes, flood can also occur, so that the automobiles, particularly the new energy automobiles are greatly damaged, and therefore, the design of the new energy automobiles with the waterproof function and even the flood prevention function is particularly important.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a new energy automobile with a flood prevention function, so as to solve the problems.

The technical scheme for solving the technical problems is as follows: a new energy automobile with a flood prevention function comprises an automobile body, wheels, a battery and a power system, wherein the battery is located in the automobile body and is arranged in a waterproof device, and the waterproof device is used for preventing water from contacting the battery; the vehicle body bottom is also provided with a lifting device and a floating device, the lifting device is used for lifting the vehicle, the floating device is used for floating the vehicle on the water surface, and the vehicle body bottom also comprises a controller used for controlling the lifting device and the floating device.

The invention has the beneficial effects that: when the water level rises due to urban waterlogging or flood, the lifting device can automatically lift the vehicle, the waterproof device can prevent water from contacting the battery, and the floating device can enable the vehicle to float on the water surface when the water potential is very large.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, watertight fittings includes waterproof storehouse and water-stop sheet, waterproof storehouse install in the automobile body, waterproof storehouse is the cuboid cavity, water-stop sheet fixed connection in bottom in the waterproof storehouse, the water-stop sheet with the space that the bottom in waterproof storehouse encloses forms the water proof cavity, battery fixed connection in the water-stop sheet top, still be equipped with in the waterproof storehouse and be used for making the radiating heat abstractor of battery.

The waterproof bin has the advantages that water is blocked outside by the waterproof bin; the water isolating cavity can isolate water in the water isolating cavity after water is prevented from entering; the heat dissipation device can dissipate heat generated by the battery during operation.

Furthermore, a plurality of drain holes are formed in the water-stop sheet at even intervals.

Adopt above-mentioned further scheme's beneficial effect be, if water gets into in the waterproof storehouse, can flow to the water-stop sheet from the drainage hole and keep apart, strive for the time for the water shutoff.

Further, the heat dissipation device comprises a plurality of fans and exhaust pipes, the fans are installed on the periphery of the battery at uniform intervals, the exhaust pipes are evenly arranged on the four side faces and the top face of the waterproof bin at uniform intervals, each exhaust pipe penetrates through the waterproof bin and is communicated with the inner cavity of the waterproof bin, one-way valves are communicated on the exhaust pipes, allow air to flow out of the waterproof bin, and prevent water from flowing into the waterproof bin from the outside through the exhaust pipes.

The fan blows heat generated by the battery out, the heat flows out of the waterproof bin through the exhaust pipe, the one-way valve allows air to flow out of the waterproof bin, the wind power of the fan is enough to blow the valve core of the one-way valve open to discharge hot air, and when water passes through the exhaust pipe from the outside in the opposite direction, the water is stopped by the one-way valve, so that the water is prevented from entering the inside of the waterproof bin.

Further, a plurality of battery liquid level sensors are uniformly installed at the top of the water-stop plate and the bottom of the water-stop cavity at intervals, temperature sensors are arranged on the batteries, and each battery liquid level sensor, each temperature sensor and the fan are electrically connected with the controller.

The temperature sensor detects the temperature of the battery and transmits a signal to the controller, and when the temperature value is greater than or equal to a set value T, the controller controls the fan to start; the battery level sensor detects the top of the water-stop sheet and the liquid level in the water-stop cavity and transmits a signal to the controller, when the liquid level is more than or equal to a set value H1, the controller controls the fan to stop working so that the one-way valve stops water flowing from the exhaust pipe to the waterproof bin, and meanwhile, the controller displays warning reminding of the danger of water soaking of the battery in the automobile to remind a driver of finding a safe and proper position to stop and check as soon as possible. Of course, if the fan is not started when the vehicle is parked, the one-way valve can always stop the water flowing from the exhaust pipe to the waterproof bin.

Furthermore, the four lifting devices are uniformly arranged at the bottom of the trolley body, each lifting device comprises a first hydraulic cylinder, a second hydraulic cylinder and a chassis, the end parts of the first hydraulic cylinder and the second hydraulic cylinder are hinged to the bottom of the trolley body, the end part of a piston rod of the second hydraulic cylinder is hinged to the periphery of one side of the first hydraulic cylinder, the second hydraulic cylinder can drive the first hydraulic cylinder to swing to a vertical state, and the chassis is hinged to the end part of the piston rod of the first hydraulic cylinder.

The hydraulic cylinder II extends, the hydraulic cylinder I is jacked to be vertical, the hydraulic cylinder extends again and again, and the vehicle is lifted up to prevent water from flooding the vehicle; the articulated chassis is adaptable to accommodate when the vehicle is parked on a sloping or uneven surface, and can vary in angle with the angle at which the surface is inclined, thereby providing more stable support.

Further, every the center department of wheel all installs car level sensor, two level sensors are installed at the top of automobile body, every car level sensor the level sensor, pneumatic cylinder one with pneumatic cylinder two all with the controller electricity is connected.

The automobile liquid level sensor detects the water level of the wheels and transmits signals to the controller, when the water level reaches a set value H2, the controller controls the second hydraulic cylinder to extend and push the first hydraulic cylinder to be vertical, then controls the first hydraulic cylinder to extend and lift the automobile until the automobile liquid level sensor detects that the water level is smaller than a set value H2, and then stops the first hydraulic cylinder from extending; when the water level continues to increase, the automobile liquid level sensor detects that the water level reaches the set value H2 again, and then the controller controls the hydraulic cylinder to continue to extend until the automobile liquid level sensor detects that the water level is smaller than the set value H2; after the hydraulic cylinders one at four positions are extended according to the steps, the two horizontal sensors respectively detect the horizontal and longitudinal levelness of the vehicle and transmit signals to the controller, and the controller controls the hydraulic cylinder one at the lower side to continue to extend until the horizontal and longitudinal levelness reaches a set value K. Therefore, when the water level is increased, the vehicle can be automatically lifted to prevent water from soaking, and the vehicle can be continuously and automatically lifted along with the continuous increase of the water level; the horizontal and longitudinal levelness of the vehicle is automatically adjusted, the vehicle can be kept horizontal even if the vehicle stops on an uneven road surface, so that uniform support is guaranteed, the vehicle is protected, the lower hydraulic cylinder on one side is selected to continue to extend, and the vehicle bodies on two sides are all on a set water level line when the vehicle is adjusted to be horizontal.

Further, the floating device comprises a rubber raft and an air pump, the rubber raft and the air pump after contraction are both installed at the bottom of the vehicle body, an air outlet of the air pump is communicated with the rubber raft, and the air pump is electrically connected with the controller.

The rubber raft can be contracted and is installed at the bottom of the car body after being contracted, normal running of a car is not affected, after the hydraulic cylinder extends to the maximum displacement position, the automobile liquid level sensor still detects that the set value H2 is reached again, the air pump is controlled by the controller to inflate the rubber raft, the hydraulic cylinder I and the hydraulic cylinder II are controlled to contract simultaneously, the rubber raft expands and floats on the water surface, and the vehicle is supported by the rubber raft.

Further, the rubber raft comprises a connecting section and a rubber raft body which are communicated with each other, the connecting section is fixedly connected to the bottom of the vehicle body, an air outlet of the air pump is communicated with the connecting section, and the rubber raft body can be contracted to the bottom of the connecting section or expanded and unfolded after being inflated by the air pump.

The beneficial effect who adopts above-mentioned further scheme is, the mode fixed connection of linkage segment through bonding or clamp in the bottom of automobile body, the rubber raft body shrink in the bottom of linkage segment, each section shrink of rubber raft body can use the magic subsides after folding to bond, and the expansion that like this can be fast keeps the stable fixed connection in bottom of linkage segment and automobile body, also can shrink when not using and fold and not influence the driving.

Further, still the intercommunication is equipped with the balanced gasbag of a plurality of even intervals around the rubber raft body, the top of rubber raft body still communicates the anticollision and encloses the fender, the anticollision encloses the fender and encloses into the open cuboid cavity in top, the automobile body is located the anticollision encloses the cavity that the fender encloses.

The beneficial effect who adopts above-mentioned further scheme is that, the equipartition enables rubber raft body in rubber raft body balanced gasbag all around and keeps fine equilibrium and stability, is difficult to turn over, and the anticollision is enclosed and is kept off protection vehicle that can be fine, prevents that the vehicle from receiving the striking of hard object when the rubber raft body floats in the aquatic and removes.

Drawings

Fig. 1 is a schematic structural diagram of a new energy vehicle with a flood prevention function, which is not lifted up, according to the present invention;

fig. 2 is a schematic structural view of the new energy vehicle with the flood prevention function shown in fig. 1 after being lifted;

fig. 3 is a schematic structural diagram of the waterproof device of the new energy vehicle with the flood prevention function shown in fig. 1;

fig. 4 is a schematic structural diagram of the rubber raft of the new energy vehicle with the flood prevention function shown in fig. 1 after being inflated and unfolded;

figure 5 is a top view of the inflated and deployed liferaft of figure 4.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the automobile comprises an automobile body, 2, wheels, 3, batteries, 4, a waterproof cabin, 5, a water-stop sheet, 6, a drain hole, 7, an exhaust pipe, 8, a one-way valve, 9, a fan, 10, a first hydraulic cylinder, 11, a second hydraulic cylinder, 12, a chassis, 13, a rubber raft, 131, a connecting section, 132, a rubber raft body, 133, a balance air bag, 134, an anti-collision enclosure, 14, an air pump, 15, an automobile liquid level sensor, 16, a level sensor, 17, a water-stop cavity, 18, a battery liquid level sensor, 19 and a temperature sensor.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1-5, the new energy automobile with the flood prevention function comprises an automobile body 1, wheels 2, a battery 3 and a power system, wherein the battery 3 is located in the automobile body 1, the battery 3 is installed in a waterproof device, and the waterproof device is used for preventing water from contacting the battery 3; the bottom of the vehicle body 1 is also provided with a lifting device and a floating device, wherein the lifting device is used for lifting the vehicle, the floating device is used for floating the vehicle on the water surface, and the vehicle body further comprises a controller used for controlling the lifting device and the floating device.

The waterproof device comprises a waterproof bin 4 and a water-stop sheet 5, the waterproof bin 4 is installed in the vehicle body 1, the waterproof bin 4 is a cuboid cavity, the water-stop sheet 5 is fixedly connected to the bottom of the waterproof bin 4, the water-stop sheet 5 and a space surrounded by the bottom of the waterproof bin 4 form a water-stop cavity 17, the battery 3 is fixedly connected to the top of the water-stop sheet 5, and a heat dissipation device for dissipating heat of the battery 3 is further arranged in the waterproof bin 4. The waterproof bin 4 keeps water out; the water isolating cavity 17 can isolate water in the water isolating cavity 17 after preventing water from entering; the heat sink can dissipate heat generated when the battery 3 operates.

A plurality of drain holes 6 are uniformly arranged on the water-stop sheet 5 at intervals. If water enters the waterproof bin 4, the water can flow to the water stop sheet 5 from the water discharge hole 6 for isolation, and time is taken for water blocking.

Heat abstractor is including all being equipped with a plurality of fan 9 and blast pipe 7, fan 9 evenly spaced install in around battery 3, blast pipe 7 evenly spaced locates waterproof storehouse 4's four sides and top surface, every blast pipe 7 all passes waterproof storehouse 4 and with the inner chamber intercommunication in waterproof storehouse 4, every all the intercommunication is equipped with check valve 8 on the blast pipe 7, check valve 8 allows the air to follow flow out in the waterproof storehouse 4, and prevents that water from passing through from the outside blast pipe 7 gets into inside the waterproof storehouse 4. The fan 9 blows out heat generated by the battery 3, the heat flows out of the waterproof bin 4 through the exhaust pipe 7, the one-way valve 8 allows air to flow out of the waterproof bin 4, the wind power of the fan 9 is used for blowing open a valve core of the one-way valve 8 to discharge hot air, and when water passes through the exhaust pipe 7 from the outside in the reverse direction, the water is stopped by the one-way valve 8, so that the water is prevented from entering the waterproof bin 4.

The top of the water-stop plate 5 and the bottom of the water-stop cavity 17 are uniformly provided with a plurality of battery liquid level sensors 18 at intervals, the battery 3 is provided with a temperature sensor 19, and each of the battery liquid level sensors 18, the temperature sensor 19 and the fan 9 is electrically connected with the controller. The temperature sensor 19 detects the temperature of the battery 3 and transmits a signal to the controller, and when the temperature value is greater than or equal to a set value T, the controller controls the fan 9 to start; the battery liquid level sensor 18 detects the liquid levels at the top of the water-stop plate 5 and in the water-stop cavity 17 and transmits signals to the controller, when the liquid level is greater than or equal to a set value H1, the controller controls the fan 9 to stop working so that the one-way valve 8 stops water flowing from the exhaust pipe 7 to the waterproof bin 4, and meanwhile, the controller displays a warning prompt that the battery 3 is in danger of soaking water in the automobile central control so as to prompt a driver to find a safe and proper position for parking inspection as soon as possible. Of course, if the fan 9 is not activated when the vehicle is parked, the check valve 8 can always block the water flowing from the exhaust pipe 7 to the waterproof chamber 4.

The lifting devices are four and uniformly arranged at the bottom of the trolley body 1, each lifting device comprises a first hydraulic cylinder 10, a second hydraulic cylinder 11 and a chassis 12, the end parts of the first hydraulic cylinder 10 and the second hydraulic cylinder 11 are hinged to the bottom of the trolley body 1, the end part of a piston rod of the second hydraulic cylinder 11 is hinged to the periphery of one side of the cylinder body of the first hydraulic cylinder 10, the second hydraulic cylinder 11 can drive the first hydraulic cylinder 10 to swing to a vertical state, and the chassis 12 is hinged to the end part of a piston rod of the first hydraulic cylinder 10. The second hydraulic cylinder 11 extends, the first hydraulic cylinder 10 is jacked to be vertical, the first hydraulic cylinder 10 extends again, and the vehicle is lifted up to prevent water from flooding the vehicle; the articulated chassis 12 can accommodate when the vehicle is parked on a sloping or uneven surface, and can vary in angle with the angle at which the surface is inclined, thereby providing more stable support.

Every wheel 2's center department all installs car level sensor 15, two level sensor 16 are installed at the top of automobile body 1, every car level sensor 15 level sensor 16 the hydraulic cylinder 10 with the hydraulic cylinder two 11 all with the controller electricity is connected. The automobile liquid level sensor 15 detects the water level of the wheels 2 and transmits a signal to the controller, when the water level reaches a set value H2, the controller controls the second hydraulic cylinder 11 to extend and lift the first hydraulic cylinder 10 to be vertical, then controls the first hydraulic cylinder 10 to extend and lift the automobile, and the extension of the first hydraulic cylinder 10 is stopped until the automobile liquid level sensor 15 at the position detects that the water level is smaller than a set value H2; when the water level continues to increase, the automobile liquid level sensor 15 detects that the water level reaches the set value H2 again, and then the controller controls the first hydraulic cylinder 10 to continue to extend until the automobile liquid level sensor 15 detects that the water level is smaller than the set value H2; after the hydraulic cylinders 10 at four positions are stretched according to the steps, the two level sensors 16 respectively detect the horizontal degrees and the longitudinal degrees of the vehicle and transmit signals to the controller, and the controller controls the hydraulic cylinder 10 at the lower side to continue stretching until the horizontal degrees and the longitudinal degrees reach the set value K. Therefore, when the water level is increased, the vehicle can be automatically lifted to prevent water from soaking, and the vehicle can be continuously and automatically lifted along with the continuous increase of the water level; the horizontal and longitudinal levelness of the vehicle is automatically adjusted, the vehicle can be kept horizontal even if the vehicle is stopped on an uneven road surface, so that uniform support is guaranteed, the vehicle is protected, the lower hydraulic cylinder I10 is selected to continue to extend, and the vehicle bodies 1 on two sides are both on a set water level line when the vehicle is adjusted to be horizontal.

The floating device comprises a rubber raft 13 and an air pump 14, the rubber raft 13 and the air pump 14 after contraction are both installed at the bottom of the vehicle body 1, an air outlet of the air pump 14 is communicated with the rubber raft 13, and the air pump 14 is electrically connected with the controller. The rubber raft 13 can be contracted and is arranged at the bottom of the vehicle body 1 after being contracted, normal running of a vehicle is not affected, after the first hydraulic cylinder 10 extends to the maximum displacement position, the automobile liquid level sensor 15 still detects that the set value H2 is reached again, the controller controls the air pump 14 to inflate the rubber raft 13, meanwhile, the first hydraulic cylinder 10 and the second hydraulic cylinder 11 are controlled to contract, the rubber raft 13 expands and floats on the water surface, and the rubber raft 13 supports the vehicle.

The rubber raft 13 comprises a connecting section 131 and a rubber raft body 132 which are communicated with each other, the connecting section 131 is fixedly connected to the bottom of the vehicle body 1, an air outlet of the air pump 14 is communicated with the connecting section 131, and the rubber raft body 132 can be contracted at the bottom of the connecting section 131 or expanded and unfolded after being inflated by the air pump 14. Connecting segment 131 through the mode fixed connection of bonding or clamp in the bottom of automobile body 1, rubber raft body 132 shrink in connecting segment 131's bottom, each section shrink of rubber raft body 132 is folded and can be used the magic subsides to bond, and the expansion that like this can be fast keeps the stable fixed connection in connecting segment 131 and automobile body 1's bottom, also can shrink when not using and fold and not influence the driving.

Rubber raft body 132 still communicates all around and is equipped with a plurality of even spaced balanced gasbags 133, the top of rubber raft body 132 still communicates the anticollision and encloses fender 134, the anticollision encloses fender 134 and encloses into the open cuboid cavity in top, automobile body 1 is located in the anticollision encloses the cavity that fender 134 encloses. The equipartition enables rubber raft body 132 in balanced gasbag 133 all around of rubber raft body 132 and keeps fine equilibrium and stability, is difficult to turn over, and the anticollision is enclosed and is kept off 134 protection vehicle that can be fine, prevents that rubber raft body 132 from showy when removing in the aquatic that the vehicle receives the striking of hard object.

The fixed connection referred to in this application may be a threaded connection, a welded connection or an adhesive connection.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.