An impact deceleration component for underwater vehicle

Abstract

The present invention discloses an impact deceleration component for underwater vehicles. The impact deceleration component can support external force through a guide plate, shrink inward, and then expand to increase water resistance for deceleration. The component is characterized in that a screw is placed at the bottom of a main shell, the main shell is a hollow structure, a plurality of windows are equidistantly arranged on the side wall of the main shell, a guide plate is arranged on the upper edge of the window, the guide plate extends outward, a plurality of expansion wings are arranged in the window accordingly, one end of the expansion wing is hingedly placed on the upper edge of the window, a torsion spring is arranged at the hinge point of the expansion wing, a plurality of guide plates are arranged on the expansion wing, a guide channel is arranged on the inner side of the guide plate, the guide channel is V-shaped, and the cross-sectional area gradually decreases from top to bottom, an airbag is placed on the expansion plate and is located in the main shell, a sealing strip is arranged between the airbag and the window, a limiting platform is arranged at the bottom of the airbag, the airbag is narrow at the top and wide at the bottom, and the upper end of the main shell is turned inward to form a tubular structure in the middle of the main shell.

Description

Technical Field

[0001] The present invention relates to an impact deceleration component for underwater vehicles, which is used to be installed on underwater vehicles and is used to decelerate smoothly when fluid impact or external force impact occurs, and belongs to the field of underwater transportation. In particular, it relates to a deceleration component that can support external force through a guide plate, shrink inward, and then expand to increase water resistance for deceleration. Background Art

[0002] At present, when transporting or moving in water, it is necessary to use an underwater vehicle with a cabin structure as a carrier for movement. In the water, due to the effect of water flow and water pressure, the underwater vehicle will be impacted, especially when subjected to external force. When two underwater vehicles are close to each other, the water in the middle is squeezed to form resistance, but the resistance is not obvious enough, and when the front and rear underwater vehicles collide, due to the structural design of the underwater vehicle itself, the water resistance is small, it is easy to directly and quickly collide to form damage, affecting transportation or movement. At the same time, when affected by external force, it will directly move in the water, and the response is too fast and sensitive. The existing protection is to set a soft structure on the outside to prevent impact, but there is little deceleration and braking action. Reverse propulsion is also used, but the reverse propulsion braking efficiency is low, there is sliding inertia, and the braking distance is long.

[0003] Publication No. CN210592376U discloses a towed and self-propelled dual-purpose multi-degree-of-freedom maneuverable underwater vehicle, comprising a main cavity, two fixed triangular horizontal wings, two fixed vertical wings, two oblique wing supports, two torpedo-shaped floats, two thrusters, a tail wing and a center of gravity adjustment mechanism; wherein the center of gravity adjustment mechanism is axially arranged in the main cavity, and its two bases are respectively arranged at the front and rear ends of the main cavity, the lower end of the shaft is connected to the base through a bearing, the upper end of the shaft is connected to the transmission wheel, and the two transmission wheels are connected through a transmission belt; an orthogonal gear is provided on one of the shafts in the base, and the orthogonal gear is also connected to a stepper motor and a brake respectively; the upper end of the loading vehicle is connected to the transmission belt, the bottom of the loading vehicle is provided with a universal wheel, the universal wheel is movably connected to a track plate, and the loading vehicle is provided with an iron block for center of gravity adjustment, the device has a complex structure, and its own braking system cannot form an external mounting structure for auxiliary braking. Summary of the invention

[0004] In order to improve the above situation, the impact deceleration component for underwater vehicles of the present invention provides a deceleration component that can support external force through a guide plate, shrink inward, and then expand to increase water resistance for deceleration.

[0005] The impact deceleration component for an underwater vehicle of the present invention is realized as follows: The impact deceleration component for an underwater vehicle of the present invention is composed of a guide plate, an inner sleeve, a main shell, a torsion spring, an expansion wing, an inner airbag, a limit platform, a screw, a sealing strip, a guide plate, a hammer head and a connecting rod, wherein the screw is placed at the bottom of the main shell, the main shell is a hollow structure, a plurality of windows are equidistantly arranged on the side wall of the main shell, a guide plate is arranged on the upper edge of the window, the guide plate extends outward, a plurality of expansion wings are correspondingly arranged in the window, one end of the expansion wing is hingedly placed on the upper edge of the window, a torsion spring is arranged at the hinge point of the expansion wing, a plurality of guide plates are arranged on the expansion wing, a guide channel is arranged on the inner side of the guide plate, the guide channel is V-shaped, and is cut from top to bottom The area gradually decreases, the airbag is placed on the expansion plate and located in the main shell, a sealing strip is arranged between the airbag and the window, a limiting platform is arranged at the bottom of the airbag, the airbag is narrow at the top and wide at the bottom, the upper end of the main shell is turned inward to form a tubular structure in the middle of the main shell, the inner sleeve is placed in the tubular structure, the connecting rod passes through the inner sleeve and extends into the main shell, the guide plate is placed at one end of the connecting rod and is located outside the main shell, a sliding gap is arranged between the guide plate and the main shell, the hammer head is placed at the other end of the connecting rod and is located in the main shell, and an annular expansion structure is arranged on the hammer head; an arc-shaped protrusion is arranged on the bottom edge of the hammer head, and the surface of the arc-shaped protrusion is smoothed; ball contact is adopted between the inner sleeve and the connecting rod; the airbag is made of hard rubber.

[0006] Beneficial effects.

[0007] 1. It can utilize relative displacement to expand, increase water resistance, and slow down.

[0008] 2. It can be installed on underwater vehicles to reduce the swaying and shaking caused by fluid fluctuations.

[0009] 3. Simple structure, convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic structural diagram of an impact deceleration assembly for an underwater vehicle according to the present invention.

[0011] Figure 2 A schematic structural diagram of an impact deceleration assembly for an underwater vehicle in a deceleration state according to the present invention.

[0012] In the attached figure

[0013] The components include: a guide plate (1), an inner sleeve (2), a main housing (3), a torsion spring (4), an expansion wing (5), an inner air bag (6), a limit table (7), a screw rod (8), a sealing strip (9), a guide plate (10), a hammer head (11), and a connecting rod (12). DETAILED DESCRIPTION

[0014] The impact deceleration component for an underwater vehicle of the present invention is realized as follows: The impact deceleration component for an underwater vehicle of the present invention comprises a guide plate (1), an inner sleeve (2), a main shell (3), a torsion spring (4), an expansion wing (5), an inner airbag (6), a limit platform (7), a screw (8), a sealing strip (9), a guide plate (10), a hammer head (11) and a connecting rod (12), wherein the screw (8) is arranged at the bottom of the main shell (3), the main shell (3) is a hollow structure, a plurality of windows are equidistantly arranged on the side wall of the main shell (3), a guide plate (10) is arranged on the upper edge of the window, the guide plate (10) extends outward, a plurality of expansion wings (5) are arranged in the windows correspondingly, one end of the expansion wing (5) is hingedly arranged on the upper edge of the window, a torsion spring (4) is arranged at the hinge point of the expansion wing (5), and the expansion wing (5) is connected to the upper edge of the window. (5) is provided with a plurality of guide plates (10), the guide plates (10) are provided with guide channels on the inner side, the guide channels are V-shaped, and the cross-sectional area gradually decreases from top to bottom, the airbag is placed on the expansion plate and is located in the main shell (3), a sealing strip (9) is provided between the airbag and the window, a limiting platform (7) is provided at the bottom of the airbag, the airbag is narrow at the top and wide at the bottom, the upper end of the main shell (3) is turned inward to form a tubular structure in the middle of the main shell (3), the inner sliding sleeve (2) is placed in the tubular structure, the connecting rod (12) passes through the inner sliding sleeve (2) and extends into the main shell (3), the guide plate (1) is placed at one end of the connecting rod (12) and is located outside the main shell (3), a sliding gap is provided between the guide plate (1) and the main shell (3), and the hammer head (11) is placed at the other end of the connecting rod (12) and is located in the main shell (3);

[0015] The hammer head (11) is provided with an annular expansion structure; the bottom edge of the hammer head (11) is provided with an arc-shaped protrusion, and the surface of the arc-shaped protrusion is smoothed; ball contact is adopted between the inner sliding sleeve (2) and the connecting rod (12); and the airbag is made of hard rubber.

[0016] When in use, the main housing (3) is connected to the underwater vehicle via the screw rod (8). When the underwater vehicle accelerates suddenly, the underwater vehicle directly pushes the main housing (3) forward, and forms inertial sliding relative to the guide plate (1) and the connecting rod (12), that is, the connecting rod (12) retracts, pushing the hammer head (11), and the hammer head (11) squeezes the airbag, so that the airbag expands in multiple directions, increasing the overall cross-section, that is, the area in contact with the water body, increasing the resistance to the main housing (3), and avoiding the inertia problem caused by sudden acceleration.

[0017] When colliding with an obstacle ahead, the guide plate (1) touches the obstacle first. Under the influence of external force, the guide plate (1) pushes the connecting rod (12) to retract into the main shell (3) and pushes the airbag through the hammer head (11). Since the structure of the airbag is narrow at the top and wide at the bottom, when the hammer head (11) moves, the airbag is squeezed and gradually rotated along the hinge point and flipped out from the window position. At the same time, the expansion wing (5) also expands to form a large cross-section outside the main shell (3), which contacts the water body to form an obstacle, thereby slowing down the travel speed of the underwater vehicle.

[0018] The main shell (3) is a hollow structure, which reduces the overall weight and can increase the buoyancy of the front end;

[0019] A guide plate (10) is provided on the upper edge of the window, which is capable of changing the flow direction of the water flow, passing over the expansion wing (5), and reducing the resistance of the guide plate (10) when it is retracted;

[0020] The expansion wing (5) is provided with a plurality of guide plates (10) which can form an obstruction when the expansion wing (5) is unfolded, change the direction of the fluid on the water-facing surface, and increase the resistance;

[0021] The guide plate (10) is provided with a guide channel on the inner side, the guide channel is V-shaped, and the cross-sectional area gradually decreases from top to bottom, so as to form a state in which the cross-sectional area of ​​the flow along the guide channel changes continuously, diverting the water flow on the water-facing surface to the surroundings, forming a radiation structure, and further increasing the water resistance;

[0022] A sliding gap is provided between the guide plate (1) and the main housing (3), enabling the guide plate to retract into the main housing (3) and form an effective retraction stroke;

[0023] The hammer head (11) is provided with an annular expansion structure, which can maintain the expansion of the airbag when the airbag is pushed and expanded;

[0024] The bottom edge of the hammer head (11) is provided with an arc-shaped protrusion, which can be embedded and squeezed with the surface of the airbag when the airbag is squeezed, so as to maintain and support the airbag and prevent it from sliding and retracting;

[0025] The inner sliding sleeve (2) and the connecting rod (12) adopt ball contact to improve the flexibility of the connecting rod (12) in telescoping, and quickly respond to external forces to perform telescoping;

[0026] The purpose of extending the auxiliary deceleration and braking of the underwater vehicle is achieved.

[0027] The above embodiments are preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any person skilled in the art may make some improvements without departing from the scope of the present invention, that is, any equivalent improvements made according to the present invention should be covered by the scope of the present invention.

Claims

1. An impact deceleration assembly for an underwater vehicle, characterized in that: The invention is composed of a guide plate, an inner sleeve, a main shell, a torsion spring, an expansion wing, an inner airbag, a limit table, a screw, a sealing strip, a guide plate, a hammer head and a connecting rod. The screw is placed at the bottom of the main shell. The main shell is a hollow structure. A plurality of windows are equidistantly arranged on the side wall of the main shell. A guide plate is arranged on the upper edge of the window. The guide plate extends outward. A plurality of expansion wings are correspondingly arranged in the window. One end of the expansion wing is hingedly arranged on the upper edge of the window. A torsion spring is arranged at the hinge point of the expansion wing. A plurality of guide plates are arranged on the expansion wing. A guide channel is arranged on the inner side of the guide plate. The airbag is placed on the expansion wing and is located in the main shell. A sealing strip is arranged between the airbag and the window. A sealing strip is arranged at the bottom of the airbag. A limiting platform, the upper end of the main shell is turned inward to form a tube structure in the middle of the main shell, the inner sleeve is placed in the tube structure, the connecting rod passes through the inner sleeve and extends into the main shell, the guide plate is placed at one end of the connecting rod and is located outside the main shell, a sliding gap is arranged between the guide plate and the main shell, the hammer head is placed at the other end of the connecting rod and is located in the main shell, an annular expansion structure is arranged on the hammer head, an arc-shaped protrusion is arranged on the bottom edge of the hammer head, the diversion channel is V-shaped, and the cross-sectional area gradually decreases from top to bottom, which can form a state in which the cross-section of the flow is constantly changing along the diversion channel, and the water flow on the water surface is diffused and diverted to the surroundings to form a radiation structure, thereby further increasing the water resistance.

2. The impact deceleration assembly for an underwater vehicle according to claim 1, characterized in that The surface of the arc-shaped protrusion is smoothed.

3. The impact deceleration assembly for an underwater vehicle according to claim 1, characterized in that The inner sliding sleeve and the connecting rod are in ball contact.

4. The impact deceleration assembly for an underwater vehicle according to claim 1, characterized in that The air bag is narrow at the top and wide at the bottom.

5. The impact deceleration assembly for an underwater vehicle according to claim 4, characterized in that The air bag is made of hard rubber.

Images