CN112238940A

CN112238940A - A flotation pontoon structure for amphibious aircraft

Info

Publication number: CN112238940A
Application number: CN202011290090.4A
Authority: CN
Inventors: 贾伟; 佟德喜; 江武; 张春
Original assignee: South China Aircraft Industry Co Ltd of China Aviation Industry General Aircraft Co Ltd
Current assignee: South China Aircraft Industry Co Ltd of China Aviation Industry General Aircraft Co Ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-01-19

Abstract

The present invention provides a pontoon structure for an amphibious aircraft, comprising: the device comprises a buoy (1), a stay bar (2), a communication device (3) and a plurality of vent pipes (4); the number of ports of the communication device (3) is 1 more than that of the sub-cabins of the buoy (1); intercommunication device (3) set up in the branch cabin in flotation pontoon (1), be provided with in flotation pontoon (1) the interior cabin of intercommunication device (3) is connected through a breather pipe (4) respectively on a port of intercommunication device (3), the interior cabin that is provided with intercommunication device (3) still is in through a setting breather pipe (4) intercommunication atmosphere in vaulting pole (2). The connecting structure is simple in form, the watertight cabin of the buoy is communicated only through the vent pipe, the capacity that the whole buoy provides buoyancy is reserved, the problem that the buoy possibly bears pressurization load under different use environments is solved, and the service life of the whole buoy is guaranteed.

Description

A flotation pontoon structure for amphibious aircraft

Technical Field

The invention belongs to the technical field of amphibious aircraft, and particularly relates to a buoy structure for an amphibious aircraft.

Background

The amphibious aircraft has the ability of taking off and landing on land and the surface of water simultaneously, in order to make the aircraft possess horizontal stability when taking off and landing on the surface of water, prevents the aircraft horizontal hunting to keep the horizontal stability of aircraft when the marine surface stops, generally install the flotation pontoon through the vaulting pole structure in the wing lower part, for providing sufficient buoyancy as the support.

The pontoon structure adopts airtight structure, and the amphibious aircraft has hard requirement to the remaining buoyancy behind the broken cabin of pontoon, so need set up a plurality of cabins in the pontoon inside to guarantee that certain cabin is damaged after, whole pontoon still can provide sufficient buoyancy.

The arrangement of watertight subdivision for the pressure differential problem that causes because of reasons such as aircraft service environment, assembly site, temperature difference exposes to the outside with the external world inside the flotation pontoon, need do the intercommunication design inside the flotation pontoon, outside, in order to guarantee that the flotation pontoon does not bear the pressure boost load under different service environment, in order to guarantee the life of flotation pontoon structure.

Disclosure of Invention

The purpose of the invention is: the buoy structure for the amphibious aircraft is simple and feasible in structure, light in weight and capable of meeting the requirements of the buoy on water tightness and air permeability.

The present invention provides a pontoon structure for an amphibious aircraft, comprising: the device comprises a buoy 1, a stay bar 2, a communication device 3 and a plurality of vent pipes 4; the number of ports of the communication device 3 is 1 more than that of the sub-chambers of the buoy 1;

the communication device 3 is arranged in a sub-chamber in the buoy 1, the inner chambers in the buoy 1 which are not provided with the communication device 3 are respectively connected with one port of the communication device 3 through a vent pipe 4,

the inner chamber provided with the communicating device 3 is communicated with the atmosphere through a vent pipe 4 arranged in the stay bar 2.

Optionally, the buoy 1 comprises a front section subdivision, a middle section subdivision and a rear section subdivision, and the communication device 3 is arranged in the middle section subdivision.

Optionally, a vent pipe 4 arranged in the stay bar 2 passes through a through hole on the surface of the middle section of the sub-compartment and is connected with the communication device 3;

and a sealing element is arranged at the through hole.

Optionally, the sealing element is a rubber element.

Optionally, one end of the vent pipe 4 penetrating through the through hole, which is located in the middle section of the sub-chamber, is provided with a U-shaped bending area.

Optionally, one end of the stay bar 2 with the vent pipe 4 is connected to the wing, and the other end is connected to the surface of the middle-section subdivision.

Optionally, the vent pipe 4 for communicating the middle section sub-chamber with the front section sub-chamber and communicating the middle section sub-chamber with the rear section sub-chamber is a straight pipe.

Optionally, the vent pipe 4 is a plastic pipe, a rubber pipe or a metal pipe.

The invention provides a buoy structure for an amphibious aircraft, which is simple in connection structure form, a watertight cabin of a buoy is communicated only through a vent pipe, and a sealing element is arranged at the end of the vent pipe, so that the capability of the whole buoy for providing buoyancy is reserved, the watertightness of the watertight cabin is not damaged, the problem that the buoy can bear pressurization load under different use environments is solved, and the service life of the whole buoy is ensured. The design method of the ventilation device improves the service life of the buoy of the amphibious aircraft in different use environments, reduces the difficulty of ventilation design of the watertight structure and has certain typicality.

Drawings

FIG. 1 is a schematic diagram of the relative positions of a pontoon and a wing provided by the invention;

FIG. 2 is a schematic structural view of a pontoon structure for an amphibious aircraft according to the invention;

FIG. 3 is a schematic view of the connection of the vent pipe and the communication device provided by the present invention;

description of reference numerals:

1-a buoy; 2-a stay bar; 3-a communication device; 4-a breather pipe.

Detailed Description

For a better understanding of the utility and objects of the present invention, and not to be considered as limiting solutions, a detailed description of embodiments of the present invention is given further below on the basis of the accompanying drawings.

Referring to fig. 1 to 3, the pontoon ventilating structure of an amphibious aircraft provided by the invention comprises a set of tubular structure and a communication device 3, which are respectively a ventilating pipe 4, a communication device 3 and a sealing element, wherein the ventilating pipe 4 is respectively sleeved with the communication device 3 and the sealing element, the communication device 3 is located inside the pontoon 1, the annular sealing element is sleeved outside the ventilating pipe and located on the outer surface of the pontoon, and the ventilating pipes a and B are respectively located inside the pontoon. Wherein, the vent pipe A leads the front section sub-chamber and the middle section sub-chamber to be communicated, the vent pipe B leads the middle section sub-chamber and the rear section sub-chamber to be communicated, the vent pipe C leads the middle section sub-chamber to be communicated with the outside atmosphere, and the three ports of the communicating device 3 are communicated with A, B, C.

The sealing element is a rubber element.

The communication device has 4 connection ports in total.

The vent pipe A and the vent pipe B are straight pipes.

Further, as shown in fig. 3, the inner port of the vent pipe C is U-shaped.

The connecting device is characterized in that the connecting device is provided with 4 connecting ports and three vent pipes, and one idle connecting port enables the middle-section subdivision to be communicated with the atmosphere.

The implementation method of the ventilation structure of the amphibious aircraft buoy comprises the following steps: when the buoy structure is assembled, a vent pipe and a communication device are pre-assembled in the cylinder body 1 and the support rod 2 respectively, so that the inner sub-chambers of the buoy 1 are communicated with the external atmosphere. When the buoy is in contact with the sea surface or the water surface, water vapor from the sea surface or the water surface possibly enters the vent pipe C through a gap of the stay bar 2 fairing, and when the water flows to the inside of the buoy, the water vapor is bent and reserved by an arm of the vent pipe C and cannot enter the inside of the buoy, so that the water tightness of the buoy barrel is ensured.

The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes and material modifications can be made without departing from the spirit of the invention, and these are within the scope of the invention.

Claims

1. A pontoon structure for an amphibious aircraft, comprising: the device comprises a buoy (1), a stay bar (2), a communication device (3) and a plurality of vent pipes (4); the number of ports of the communication device (3) is 1 more than that of the sub-cabins of the buoy (1);

the communication device (3) is arranged in a sub-chamber in the buoy (1), an inner chamber which is not provided with the communication device (3) in the buoy (1) is respectively connected to one port of the communication device (3) through a vent pipe (4),

the inner chamber provided with the communicating device (3) is communicated with the atmosphere through a vent pipe (4) arranged in the stay bar (2).

2. A buoy structure as claimed in claim 1, characterized in that the buoy (1) comprises a front section bay, a middle section bay and a rear section bay, the communication means (3) being arranged in the middle section bay.

3. A pontoon structure according to claim 2, wherein a breather pipe (4) arranged in the stay (2) passes through a through-hole in the surface of the intermediate section bay to be connected to the communication means (3);

and a sealing element is arranged at the through hole.

4. The spar structure of claim 3, wherein the seal is rubber.

5. A pontoon structure according to claim 4, wherein the end of the vent pipe (4) passing through the through-hole, which end is located in the middle section, is provided with a U-shaped bend region.

6. A pontoon structure according to claim 5, wherein the struts (2) with aeration tubes (4) passing through them are connected at one end to the wing and at the other end to the surface of the intermediate bay.

7. A buoy structure according to claim 6, characterized in that the vent pipe (4) communicating the middle section subdivision with the front section subdivision and communicating the middle section subdivision with the rear section subdivision is a straight pipe.

8. A buoy structure according to claim 1, characterized in that said vent pipe (4) is a plastic, rubber or metal pipe.