Rigid-flexible combined emergency buoy cabin capable of directionally deforming

Abstract

The utility model relates to the aviation emergency safety equipment technology, in particular to a rigid-flexible combined emergency buoy cabin capable of directionally deforming, which comprises an emergency cabin body, a protective cover, emergency buoys, buoy connecting belts and machine body joints, the protective cover is fixedly connected with the emergency cabin body, the protective cover is made of flexible materials, the emergency cabin body is made of rigid materials, and the buoy connecting belts are connected with the machine body joints. The emergency buoy is arranged in the emergency cabin body, a guide groove capable of achieving directional deformation is formed in the protection cover, the emergency buoy is connected with the machine body connector through a buoy connecting belt, and the buoy connecting belt is stressed directionally and enables the guide groove to crack directionally to achieve directional protection of the emergency buoy through the directional action of the buoy connecting belt and the guide groove. The rigid-flexible combined scheme and the local key protection design are adopted, avoiding of instantaneous stress concentration and continuous protection of the air bag are achieved, and the problem that the strength of composite materials is limited is solved. The device can be applied to protection of stress concentration positions of various buoys and is wide in application prospect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of aviation emergency safety equipment, and relates to a rigid-flexible combined emergency float chamber capable of directional deformation. BACKGROUND

[0002] Currently, the cabin body of the emergency floating device is usually made of rigid composite material, which has the advantages of light weight and high strength, but the structural strength still cannot meet the requirements under instantaneous heavy load.

[0003] For the helicopter platform with the emergency float interface structure outside, the stress is obviously concentrated at the interface part, the traditional rigid cabin body cannot withstand instantaneous heavy load, and the sharp objects generated after the rigid material is damaged can pierce the air bag, resulting in failure of the air bag. UTILITY MODEL CONTENTS

[0004] The utility model discloses the purpose that is: rigid-flexible combined emergency float chamber capable of directional deformation can realize the continuous protection of the air bag, and will not pierce the air bag.

[0005] The utility model discloses the technical scheme as follows: a rigid-flexible combined emergency float chamber capable of directional deformation, including emergency cabin body, protection cover, emergency float, float connecting band and machine body joint, protection cover and emergency cabin body fixed connection, wherein, protection cover is made of flexible material, emergency cabin body is made of rigid material, emergency float is placed in emergency cabin body, protection cover is provided with the directional deformation guide groove, emergency float is connected with machine body joint through float connecting band, and the directional protection of emergency float is realized to the directional crack of guide groove by the stress directional effect and guide groove of float connecting band.

[0006] In the above scheme, the emergency cabin body is made of carbon fiber and glass fiber and is pasted and solidified.

[0007] In the above scheme, the protection cover is made of EPDM.

[0008] In the above scheme, the emergency cabin body and the protection cover are connected through metal rivets.

[0009] In the above scheme, the position and the number of the protection cover on the emergency cabin body are adapted to the position and the number of the machine body joint.

[0010] In the above scheme, the protection cover is four, and is arranged around the rigid emergency cabin body.

[0011] In summary, due to the adoption of the above technical scheme, the beneficial effects of the utility model are: the main body part is made of composite material, which is light in weight, high in strength and has good plasticizing effect, the local part is made of flexible rubber material, which bears the protection function of the air bag, and when bearing instantaneous large load, directional deformation is realized, and the protection function of the air bag is not invalidated. The utility model adopts the rigid-flexible combined scheme, the local key protection design is realized, the avoidance of instantaneous stress concentration and the continuous protection of the air bag are realized, and the problem of limited strength of the composite material is solved. It can be applied to the protection of stress concentration positions of various floating buoys, and has wide application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the overall structure schematic diagram of the utility model;

[0013] Figure 2 is the protective cover structure schematic diagram of the utility model;

[0014] Figure 3 is the application scene schematic diagram of the utility model;

[0015] Figure 4 is the protection schematic diagram of the machine body joint and the connecting belt of the utility model.

[0016] Mark in the drawing: 1 - emergency cabin body, 2 - protective cover, 3 - guide groove, 4 - emergency floating buoy, 5 - floating buoy connecting belt, 6 - machine body joint. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0018] The rigid-flexible combined type emergency floating buoy cabin of the utility model is composed of an emergency cabin body 1 and a protective cover 2 made of three-element ethylene-propylene rubber, forming a rigid-flexible combined type emergency floating buoy cabin body; the emergency cabin body 1 is made of rigid material, mainly by carbon fiber, glass fiber laying and curing, having the advantages of light weight and high strength, and the emergency cabin body 1 is connected with the protective cover 2 through rivets.

[0019] In the storage state, the emergency float 4 is in a vacuum folded state and is stored in the cabin body 1, the emergency float 4 is connected with the machine body joint 6 through the float connecting belt 5, after the float is inflated and unfolded, the load is transmitted to the machine body joint 6 through the float connecting belt 5, and the float provides a floating function for the helicopter. The protection cover 2 protects the emergency float 4 and the machine body joint 6, so that the machine body joint 6 is prevented from wearing the emergency float 4 under mechanical vibration; the protection cover 2 is designed with a directional deformation guide groove 3, the guide groove 3 is a component part of the protection cover 2, the guide groove 3 is a weak structure, when the float is not unfolded and is under stress, the guide groove 3 provides an anti-wear protection function for the float in the cabin, in the emergency forced landing state, the emergency float 4 bears the buoyancy and floats up, the float connecting belt 5 moves upwards, under the large load of the float connecting belt 5, the protection cover 3 is locally deformed and cracked along the guide groove 3, the directional protection of the float is realized through the guide groove 3, the protection cover 3 is made of a flexible material, the cracked position cannot produce sharp material wear on the emergency float 4, meanwhile, the protection cover 2 can continue to protect the emergency float 4 and avoid wear. After the emergency float 4 is vacuumized, the folded package is in the emergency float cabin body,

[0020] The above technical scheme is only a preferred embodiment of the utility model, and of course cannot limit the right range of the utility model, therefore, equivalent changes made according to the patent range of the utility model still belong to the protection range of the utility model.

Claims

1. A rigid-flexible combined directionally deformable emergency pontoon cabin, comprising an emergency cabin body (1), a protective cover (2), an emergency pontoon (4), a pontoon connecting belt (5) and a body joint (6), characterized in that: The protection cover (2) is fixedly connected with the emergency cabin body (1), wherein the protection cover (2) is made of a flexible material, the emergency cabin body (1) is made of a rigid material, the emergency float (4) is arranged in the emergency cabin body (1), the protection cover (2) is provided with a guide groove (3) capable of directional deformation, the emergency float (4) is connected with the machine body joint (6) through a float connecting belt (5), and the guide groove (3) is directionally cracked to realize directional protection of the emergency float (4) under the directional force of the float connecting belt (5) and the guide groove (3).

2. A rigid-flexible combined directionally deformable emergency floatation capsule according to claim 1, characterized in that: The emergency cabin body (1) is made of carbon fiber and glass fiber and is pasted and solidified.

3. A rigid-flexible combined directionally deformable emergency floatation capsule according to claim 1, characterized in that: The protection cover (2) is made of ethylene-propylene-diene rubber.

4. A rigid-flexible combined directionally deformable emergency floatation capsule according to claim 1, characterized in that: The emergency cabin body (1) is connected with the protection cover (2) through a metal rivet.

5. A rigid-flexible combined directionally deformable emergency floatation capsule according to claim 1, characterized in that: The position and the number of the protection cover (2) on the emergency cabin body (1) are adapted to the position and the number of the machine body joint (6).

6. A rigid-flexible combined directionally deformable emergency floatation capsule according to claim 5, characterized in that: The protection cover (2) is four, and is arranged around the rigid emergency cabin body (1).

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