KR102266331B1 - Amphibious boat with caterpillar - Google Patents

Abstract

The present invention relates to an amphibious boat capable of moving both on land and on water, and a caterpillar is provided at the rear of the hull to ensure smooth operation at the interface between land and water, especially in environments such as tidal flats. It's about boats. The present invention includes a caterpillar provided at the front wheel and the stern of the hull provided in the bow of the hull and capable of moving on a caterpillar, which is connected to a hydraulic cylinder and has a folding structure while rotating in the stern direction according to ground conditions. The influence on the front wheel or the rear wheel can be excluded, and the hull can be supported and moved by contact with the ground in ground conditions such as tidal flats by the control of the controller.

Description

Amphibious boat with caterpillar {AMPHIBIOUS BOAT WITH CATERPILLAR}

The present invention relates to an amphibious boat equipped with a caterpillar, and more particularly, an amphibious boat equipped with a caterpillar that can ensure smooth movement at the interface between land and water in an amphibious boat that can freely move on land and water. is about

In general, the amphibious boat is configured to include a hull and a plurality of wheels provided in the lower part of the hull, so that it is possible to move both on water and on land.

In the water, the wheel of the amphibious boat may be configured to be folded in the upper direction of the hull by a hydraulic cylinder or the like. Folding the wheel reduces resistance to water.

On land, the folded wheel is unfolded again in the lower direction of the hull to support the hull and serve as a means of transportation.

When examining the operation status of amphibious boats from land to water or from water to land, when moving from land to water, the hull is moved through the wheels to a position where the hull is sufficiently submerged in water, When moving from water to land, the hull moves through the wheels at the position exposed from the water.

As a prior art, Korean Patent Registration No. 10-1923495 discloses an amphibious boat having one wheel at the bow and two wheels at the stern, and each wheel is accommodated in a storage unit provided inside the hull. do.

However, the wheel structure applied to the amphibious boats of the above registered patents or currently released products cannot expect smooth operation at the interface between water and land. Considering the operating conditions of the above-mentioned amphibious boats, it is difficult to move the hull through the power of the wheels due to the wheels falling into the tidal flats in a clay-like ground condition such as a tidal flat. There are issues that cannot be guaranteed.

Considering the characteristics of amphibious boats that are free to move on water and land, research and development of a wheel structure that can ensure smooth movement at the interface between land and water is required.

(Document 0001) Republic of Korea Patent No. 10-1923495 (Registration date: 2018.11.23.)

An object of the present invention, which was invented in consideration of the above points, is to provide an amphibious boat capable of smooth movement in the interface between land and water, particularly in the environment of tidal flats.

An amphibious boat according to the present invention for achieving the above object includes a stern located in the front and a bow located in the rear, the driving engine is mounted, the hull floating by the floating force on the water surface; a front wheel provided in the bow of the hull under the hull and controlled through a steering device mounted on the hull and receiving rotational force by the driving engine; a rear wheel provided at the rear of the hull; a caterpillar provided in the stern of the hull and movable while rotating on a caterpillar in the aft direction of the hull, provided in a pair spaced apart from each other and receiving rotational force by the driving engine; and a control unit that receives ground information on ground conditions from sensors provided on the hull, front wheels, and rear wheels, and determines whether to operate the caterpillar based on the ground information.

In addition, the caterpillar, a plurality of plate bodies connected in series with each other to form the caterpillar; a plurality of rollers provided inside the plate body and connected to the plate body; and a power means for transmitting power to the roller.

In addition, the plate body of the caterpillar is provided in a state protruding in the outward direction to move along the plate body on the caterpillar; may further include.

In addition, the sensor, the first sensor is provided on the hull to determine whether the hull is submerged enough to float in water; and a second sensor provided on the front wheel or the rear wheel to determine the depth at which the front wheel or the rear wheel is buried in the ground.

In addition, the control unit, when the front wheel or the rear wheel is buried at a set depth from the second sensor, moves the caterpillar downward, and when it is determined from the first sensor that the hull floats in water, the Operation can be stopped by moving the caterpillar above the stern.

In addition, the front wheel, the rear wheel and the caterpillar may be connected to the hull through a hydraulic cylinder.

According to an embodiment of the present invention, it is possible to ensure smooth movement of the hull at the interface between land and water.

In addition, as the caterpillar rotates and is fixed in the rear tail direction of the hull during operation on water, it is possible to lower the underwater resistance and prevent the operation from being affected.

1 is a schematic diagram showing an amphibious boat equipped with a caterpillar according to an embodiment of the present invention.
Figure 2 is a state diagram showing a running state of the amphibious boat equipped with a caterpillar according to an embodiment of the present invention.
3 is a detailed view showing a caterpillar according to an embodiment of the present invention.
Figure 4 is a schematic diagram showing an amphibious boat equipped with a caterpillar according to another embodiment of the present invention.
5 is a state diagram illustrating a running state of an amphibious boat equipped with a caterpillar according to another embodiment of the present invention.
6 is a block diagram illustrating a control unit according to an embodiment of the present invention.

In describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Since the embodiment according to the concept of the present invention may have various changes and may have various forms, specific embodiments will be illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiment according to the concept of the present invention with respect to a specific disclosed form, and should be understood to include all changes, equivalents or substitutes included in the spirit and scope of the present invention.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the described features, numbers, steps, operations, components, parts, or combinations thereof exist, and include one or more other features or numbers. , it is to be understood that it does not preclude the possibility of the presence or addition of steps, operations, components, parts, or combinations thereof.

Hereinafter, the present invention will be described in detail.

1 is a schematic diagram showing an amphibious boat equipped with a caterpillar according to an embodiment of the present invention, and FIG. 2 is a state diagram showing a running state of the amphibious boat equipped with a caterpillar according to an embodiment of the present invention.

1 and 2, the amphibious boat equipped with a caterpillar 400 according to an embodiment of the present invention is provided in the stern of the front wheel 200 and the hull 100 provided in the bow of the hull 100. and includes a caterpillar 400 capable of moving on a caterpillar orbit.

The hull 100 includes a stern located in the front and a bow located in the rear, and is formed to be able to float on the water surface by floating force. A driving engine may be mounted inside the hull 100 , and an air tube for floating of the hull 100 may be provided around the hull 100 .

The driving engine provided inside the hull 100 transmits the rotational force to the front wheel 200 or the caterpillar 400 . That is, the front wheel 200 or the caterpillar 400 may receive rotational force by the driving engine.

The lower portion of the hull 100 is provided with a front wheel 200 in the bow and a caterpillar 400 is provided at the rear. The front wheel 200 may be controlled through a steering device mounted on the hull 100 .

The hull 100 is provided with a hydraulic system, and the hydraulic system rotates the front wheel 200 or the caterpillar 400 through a hydraulic pump and an oil cylinder. It is preferable that the hydraulic system can be driven according to a user's operation.

For example, the front wheel 200 is connected to the hull 100 through a hydraulic cylinder, and the hydraulic cylinder may push the front wheel 200 in the downward direction of the hull 100 or pull it upward. On land, the front wheel 200 is pushed in the downward direction to support the hull 100 through the front wheel 200, and the water resistance is reduced by pulling the front wheel 200 upward in the water. In this case, the front wheel 200 is connected to the hull 100 and the first support means, and the first support means is preferably rotated within a predetermined range in the bow direction according to the hydraulic driving of the hydraulic cylinder.

3 is a detailed view showing a caterpillar 400 according to an embodiment of the present invention.

Referring to FIG. 3 , the caterpillar 400 transmits power to a plate body 410 forming an endless track, a roller 420 provided in the plate body 410 and connected to the plate body 410 , and the roller 420 . It may include a power means (430).

The plate body 410 may be plural and are connected in series with each other to form an endless track. There may be a plurality of rollers 420 and are located in the caterpillar, and move the plate body 410 as it rotates by receiving power from the power means 430 . The caterpillar 400 has a larger contact area with the ground than the front wheel 200 , and the plate body 410 may have irregularities on its outer surface to increase friction with the ground.

The caterpillar 400 may be formed of a metal material, but it is preferable to have a plastic material having a certain rigidity in consideration of the weight.

In an embodiment of the present invention, the plate body 410 of the caterpillar 400 may further include a rake 440 that is provided in a state protruding outward and moves together with the plate body 410 on a caterpillar track. That is, the rake 440 may be connected to the plate body 410 and move together with the plate body 410 on an endless track.

The rake 440 may be a plurality of spaced apart from each other at regular intervals.

The present invention provided with a rake 440 can increase the mobility of the hull 100 as the rake 440 is inserted into the ground in an environment such as a tidal flat.

The caterpillar 400 may be connected to the hydraulic system described above.

For example, the caterpillar 400 is connected to the hull 100 through a hydraulic cylinder, and the hydraulic cylinder can push the caterpillar 400 in the downward direction of the hull 100 or pull the caterpillar 400 in the upward direction. Push the caterpillar 400 in the downward direction on land to support the hull 100 through the caterpillar 400, and to reduce the underwater resistance by pulling the caterpillar 400 in the upward direction on the water.

More specifically, the caterpillar 400 is connected through the hull 100 and the second support means at the rear of the hull 100, and the second support means is constant in the stern direction by operation according to the hydraulic pressure of the hydraulic cylinder. It can be rotated within the range. In this case, a fixing means capable of fixing the caterpillar 400 is preferably provided at the rear of the hull 100 in a state in which the caterpillar 400 is rotated backward by a hydraulic cylinder, that is, in a state lifted rearward. . The fixing means may have a structure of a fastening pin that can be fastened to a fastening groove provided in the caterpillar or a housing structure in which the caterpillar is accommodated.

In an embodiment of the present invention, the caterpillar 400 may be plural.

The plurality of caterpillars 400 is configured as a pair provided at the stern of the hull 100 , and the pair of caterpillars 400 may have a parallel arrangement structure while being spaced apart from each other by a predetermined distance. A connector is provided between the pair of caterpillars 400 to connect the caterpillars 400 to each other.

The above-described hydraulic cylinder is connected to the connector, and the caterpillars 400 are folded or unfolded while the connector rotates backward within a predetermined range according to hydraulic driving of the hydraulic cylinder.

In this case, it is preferable that the fixing means provided on the stern is fastened to each of the pair of caterpillars 400 or each is accommodated to fix the positions of the caterpillars 400 .

The rollers 420 provided in each of the pair of caterpillars 400 may be rotated in the same direction or may be rotated in different directions. For example, when the roller 420 provided in any one of the pair of caterpillars 400 rotates in a direction to move the hull 100 forward, the roller 420 provided in the other caterpillar 400 is the user It is possible to rotate the hull 100 by rotating in the same direction according to the selection to move the hull 100 forward or rotate in the opposite direction. When the hull 100 is rotated, the center of the hull 100 is not moved. The rollers 420 driven in opposite rotational directions may be connected to different power means 430 to receive power in opposite directions.

4 is a schematic diagram showing an amphibious boat equipped with a caterpillar according to another embodiment of the present invention, and FIG. 5 is a state diagram showing a running state of an amphibious boat equipped with a caterpillar according to another embodiment of the present invention. to be.

4 and 5 , in another embodiment of the present invention, a rear wheel 300 may be provided at the rear of the hull 100 . In this case, the rear wheel 300 is driven independently of the caterpillar 400 . That is, the lower portion of the hull 100 is provided with a front wheel 200 and a rear wheel 300, the caterpillar 400 is driven auxiliary. The rear wheel 300 is connected to the hydraulic cylinder and can be folded or unfolded while rotating to the rear of the hull 100 according to the hydraulic operation of the hydraulic cylinder.

At the interface between land and water, the front wheel 200 and the rear wheel 300 roll to move the hull 100, and when the interface has conditions such as tidal flats, the caterpillar 400 rotates so as to be in contact with the ground by a hydraulic cylinder to temporarily support the hull 100 and move the hull 100 at the same time. In this case, the rear wheel 300 may rotate backward to maintain a folded state.

Caterpillar 400, which supports and moves the hull 100 auxiliary, rotates backward again by a hydraulic cylinder and maintains the folded state when moving underwater or on land, so that the front wheel 200 or the rear wheel 300 is not affected. .

6 is a block diagram illustrating the control unit 500 according to an embodiment of the present invention.

Referring to FIG. 6 , the operation of the caterpillar 400 may be performed through the control unit 500 .

The control unit 500 receives the ground information about the ground conditions from the sensor provided in the hull 100, the front wheel 200, or the rear wheel 300, and determines whether the caterpillar 400 operates based on the ground information do.

For example, assuming a case of moving from land to water, the sensor is provided in the hull 100 to determine whether the hull 100 is submerged enough to float in water and the first sensor 510 and the front wheel ( 200) or the rear wheel 300 and may include a second sensor 520 for determining the depth at which the front wheel 200 or the rear wheel 300 is buried in the ground. The first sensor 510 may measure whether the hull 100 is in contact with water or measure the floating degree of the hull 100 , and the second sensor 520 may measure the viscosity of the ground or reflect the irradiated light. can be measured. When the depth at which the front wheel 200 or the rear wheel 300 is buried in the ground from the second sensor 520 is greater than or equal to a set reference value, the control unit 500 drives the hydraulic system 530 to move the caterpillar 400 downward. , to support and move the hull 100 through the caterpillar 400 . Thereafter, when it is determined from the first sensor 510 that the hull 100 is floating in water, the control unit 500 drives the hydraulic system 530 to move the caterpillar 400 to the upper part of the stern of the caterpillar 400 . stop working.

For another example, assuming that moving from water to land, the control unit 500 determines the depth at which the front wheel 200 or the rear wheel 300 is buried in the ground through the ground information measured from the second sensor 520 . If it is more than one reference value, the caterpillar 400 may be moved downward to operate the caterpillar 400 , and if it is less than the second reference value, the operation may be stopped by moving the caterpillar 400 upward. Here, the value of the first reference value is greater than the value of the second reference value.

In addition to the above-described embodiments, various types, positions, and configurations of the sensor may be applied, and the operation of the caterpillar 400 through the control unit 500 may vary within the scope of the object of the present invention in addition to the above-described mechanism.

As described above, the amphibious boat according to the present invention is provided with a caterpillar 400 to ensure smooth movement of the amphibious boat in an environment such as a boundary surface between water and land, in particular, a tidal flat, and the caterpillar 400 is rearward. It is possible to exclude the influence on the front wheel 200 or the rear wheel 300 during driving by rotating and moving. In addition, there is an advantage in that the operation or operation of the amphibious boat is convenient by the operation of the caterpillar 400 of the control unit 500 .

100: hull
200: front wheel
300: rear wheel
400: caterpillar
410: plate body
420: roller
430: power means
440: rake
500: control unit
510: first sensor
520: second sensor
530: hydraulic system

Claims (6)

A hull including a bow located in the front and a stern located in the rear, and equipped with a driving engine, which floats on the water surface by floating force;
a front wheel provided in the bow of the lower part of the hull and controlled through a steering device mounted on the hull and receiving rotational force by the driving engine;
a rear wheel provided at the rear of the hull;
a caterpillar provided in the stern of the hull and movable while rotating on a caterpillar in the aft direction of the hull, provided in a pair spaced apart from each other and receiving rotational force by the driving engine; and
A control unit that receives ground information about ground conditions from sensors provided on the hull, front wheels and rear wheels, and determines whether the caterpillar operates based on the ground information;
The sensor is
a first sensor provided on the hull to determine whether the hull is submerged enough to float in water; and
An amphibious boat equipped with a caterpillar comprising a; a second sensor provided on the front wheel or the rear wheel and determining the depth at which the front wheel or the rear wheel is buried in the ground.
The method according to claim 1,
The caterpillar is
a plurality of plate bodies connected in series to form the endless track;
a plurality of rollers provided inside the plate body and connected to the plate body; and
An amphibious boat with a caterpillar comprising a; power means for transmitting power to the roller.
3. The method according to claim 2,
The amphibious boat provided with a caterpillar further comprising; a rake that is provided on the plate body of the caterpillar in a state protruding outward and moves together with the plate body on the caterpillar.
delete The method according to claim 1,
The control unit is
When the front wheel or the rear wheel is buried in the ground from the second sensor at a set depth, the caterpillar is moved downward, and when it is determined from the first sensor that the hull is floating in water, the caterpillar is moved to the upper part of the stern Amphibious boat equipped with a caterpillar, characterized in that to stop the operation.
The method according to claim 1,
The front wheel, the rear wheel and the caterpillar are amphibious boats with a caterpillar, characterized in that connected to the hull and through a hydraulic cylinder.

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