Restraint system for an aviation survival raft

Abstract

The application provides a restraint system of an aviation life raft, which comprises a first belt, a plurality of second belts, a first connecting piece and a second connecting piece, wherein the first end of the first belt is fixedly arranged on a bulkhead close to the first end of the life raft, the first belt is adjustably arranged on the first connecting piece, the first ends of the plurality of second belts are fixedly connected with the bulkhead close to the second end of the life raft at preset positions, the second ends of the plurality of second belts are fixedly connected with the second connecting piece, and the first connecting piece and the second connecting piece are detachably connected to form a multi-point distributed fixing mode, so that the life raft is dispersedly restrained by the plurality of belts, the contact area between the belts and the life raft is increased, the stress distribution is improved, the overall fixing stability and the anti-shock performance are improved, and the single-belt structure is prevented from being loosened or deviated under vibration conditions.

Description

Technical Field

[0001] This utility model relates to the field of aviation safety equipment technology, and in particular to a restraint system for an aviation life raft. Background Technology

[0002] Existing aircraft are typically equipped with emergency life rafts to provide buoyancy support for occupants in the event of a forced landing or water emergency. The life rafts are usually located inside the cabin near the bulkhead and secured with life raft straps to prevent displacement or collision during flight vibrations, airflow fluctuations, or changes in aircraft attitude.

[0003] The existing life raft straps have metal rings at both ends. One end of a single webbing passes through two metal rings in sequence, and the two ends are adjusted and connected by buckles. However, in actual use, because only a single webbing is used to restrain the life raft, the contact area between the strap and the life raft is small, and the force distribution is uneven. This can easily cause the strap to loosen or shift under vibration conditions, thus affecting the stability of the life raft within the cabin. Utility Model Content

[0004] The purpose of this application is to provide a restraint system for aircraft life rafts to solve the problem of unstable fixation of life rafts by the straps on aircraft in the prior art.

[0005] To achieve this objective, the following technical solution is adopted in this application:

[0006] This application provides a restraint system for an aircraft life raft, comprising a first belt body, a plurality of second belt bodies, a first connector, and a second connector, wherein:

[0007] The first end of the first belt is fixedly mounted on the bulkhead near the first end of the life raft. The first belt is adjustablely threaded through the first connector. The first ends of several second belts are fixedly connected to preset positions on the bulkhead near the second end of the life raft. The second ends of several second belts are fixedly connected to the second connector. The first connector and the second connector are detachably connected.

[0008] Optionally, the first connector is configured as a latch, and the second connector is configured as a metal ring.

[0009] Optionally, several second strips are radially connected to the metal ring.

[0010] Optionally, the buckle includes a hook and an adjusting buckle, a first end of the hook being hinged to a first end of the adjusting buckle, and a second end of the adjusting buckle being connected to a first belt body. The adjusting buckle is configured to adjust the length of the first belt body and fix it in place.

[0011] The second end of the hook is provided with a locking space, which has an opening that can be opened or closed. The metal ring can enter the locking space through the opening to connect with the hook.

[0012] Optionally, the hook includes a first closure, a second closure, a hinge shaft, and an elastic element. The first end of the first closure and the first end of the second closure are hinged together by the hinge shaft. The second end of the second closure is bent inward toward the side of the first closure to form a hook. The elastic element is disposed between the first closure and the second closure. The elastic element is configured to provide elastic force to bring the second end of the first closure closer to the second end of the first closure until the hook abuts against the inner wall of the first closure to complete the closure of the hook.

[0013] Optionally, the hook-shaped body has an open groove on its inner side, the bottom of which is adapted to fit a metal ring.

[0014] Optionally, the first end of the first closing member is provided with a first limiting plate and a second limiting plate at intervals along the axial direction of the hinge axis, and a limiting gap is formed between the first limiting plate and the second limiting plate. The first end of the second closing member is disposed in the limiting gap, and the limiting gap is configured to limit the first closing member along the axial direction of the hinge axis.

[0015] Optionally, the adjusting buckle includes a bracket, a first winding post, and a second winding post, wherein:

[0016] The first and second winding posts are arranged on the support at intervals and parallel to each other, forming a winding gap between the first and second winding posts. The support is provided with two sliding grooves, and the two ends of the first winding post are slidably arranged in the sliding grooves so that the first winding post is close to or away from the second winding post. At least the first winding post is provided with a protruding ridge.

[0017] The second end of the first belt passes through the same side of the second winding post and the first winding post in sequence, fits against the first winding post, passes through the winding gap, and is led out from one side of the second winding post. When the first belt is tightened, the first winding post slides toward the second winding post until both ends of the first winding post abut against the first end of the sliding groove. The inner sides of the first belt abut against each other on the second winding post to fix the first belt.

[0018] Optionally, the sliding groove is inclined toward the direction of introduction of the first belt.

[0019] Optionally, the length of the first belt is greater than the length of the second belt.

[0020] Compared with the prior art, the restraint system for an aviation life raft proposed in this application has the following advantages:

[0021] 1) By setting a first belt body, several second belt bodies, and cooperating with a first and second connector that can be detachably connected, a multi-point distribution fixing method is formed, so that the life raft can achieve distributed constraint through multiple belt bodies, thereby increasing the contact area between the straps and the life raft, improving the force distribution, improving the overall fixing stability and seismic performance, and avoiding loosening or displacement of the single belt body structure under vibration conditions.

[0022] 2) By connecting several second belts radially to the metal ring, the life raft is subjected to balanced constraints in multiple directions. This not only disperses the concentrated load at the metal ring, but also effectively improves the uniformity of the life raft's fixation and the balance of forces, thereby further improving the reliability of the fixation.

[0023] 3) By setting a hook and adjusting buckle in the lock, the length of the first belt body is adjustable and can be quickly locked. In addition, by cooperating with the hook and the metal ring, quick connection or separation can be achieved in the middle of the life raft. This ensures a firm connection while significantly improving the efficiency of installation and disassembly, making it easy to quickly release the life raft in an emergency.

[0024] 4) By designing the length of the first strap to be greater than that of the second strap, it is easy to adjust flexibly to fix life rafts of different sizes, thus improving the applicability and flexibility of the straps. Attached Figure Description

[0025] To more clearly illustrate and understand the technical solutions in the embodiments of this application, the accompanying drawings used in the background technology and embodiment descriptions of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0026] Figure 1 This is a partial top view of the restraint system of the aviation life raft provided in the embodiments of this application;

[0027] Figure 2 This is a partial front view of the restraint system of an aviation life raft provided in an embodiment of this application;

[0028] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle. Detailed Implementation

[0029] To facilitate understanding of this application, a more complete description of the application will be provided below with reference to the accompanying drawings. Preferred embodiments of the application are shown in the drawings. However, the application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figures 1 to 3 As shown in the embodiment of this application, a restraint system for an aviation life raft includes a first belt 10, a plurality of second belts 20, a first connector, and a second connector, wherein:

[0031] The first end of the first belt 10 is fixedly mounted on the bulkhead near the first end of the life raft. The first belt 10 is adjustablely mounted on the first connector. The first ends of several second belts 20 are fixedly connected to preset positions on the bulkhead near the second end of the life raft. The second ends of several second belts 20 are fixedly connected to the second connector. The first connector and the second connector are detachably connected.

[0032] Specifically, both the first belt body 10 and the second belt body 20 are made of nylon webbing.

[0033] Specifically, the first end of the first belt 10 and the first end of the second belt 20 are connected to the bulkhead via metal rings.

[0034] By setting a first belt 10, several second belts 20, and cooperating with a detachable first connector and second connector, a multi-point distribution fixing method is formed, so that the life raft can achieve distributed constraint through multiple belts, thereby increasing the contact area between the straps and the life raft, improving the force distribution, improving the overall fixing stability and seismic performance, and avoiding loosening or displacement of the single belt structure under vibration conditions.

[0035] In one embodiment, the first connector is configured as a latch 30, and the second connector is configured as a metal ring 40.

[0036] By setting the first connector as a buckle 30 and the second connector as a metal ring 40, the two ends of the strap can be quickly disassembled and assembled, simplifying the loading and unloading operation of the life raft, improving the operational efficiency of the life raft during maintenance, replacement or emergency deployment, and reducing the structural complexity of the connector.

[0037] In one embodiment, several second strips 20 are radially connected to the metal ring 40.

[0038] By connecting several second belts 20 radially to the metal ring 40, the life raft is subjected to balanced constraint in multiple directions. This not only disperses the concentrated load at the metal ring 40, but also effectively improves the uniformity of the life raft's fixation and the balance of forces, thereby further improving the reliability of the fixation.

[0039] In one embodiment, the buckle 30 includes a hook 31 and an adjusting buckle 32. The first end of the hook 31 is hinged to the first end of the adjusting buckle 32, and the second end of the adjusting buckle 32 is connected to the first belt body 10. The adjusting buckle 32 is configured to adjust the length of the first belt body 10 and fix it in place.

[0040] The second end of the hook 31 is provided with a locking space 310, which has an opening that can be opened or closed. The metal ring 40 can enter the locking space 310 through the opening to connect with the hook 31.

[0041] By setting a cooperative structure between hook 31 and adjusting buckle 32 in the locking buckle 30, the length of the first belt body 10 is adjustable and can be quickly locked. In addition, by setting hook 31 to have an openable locking space 310, it can be quickly connected or separated from metal ring 40, thereby ensuring a firm connection while significantly improving installation and disassembly efficiency, and facilitating the rapid release of the life raft in emergency situations.

[0042] In one embodiment, the hook 31 includes a first closure 311, a second closure 312, a hinge shaft 313, and an elastic element (not shown in the figure). The first end of the first closure 311 and the first end of the second closure 312 are hinged together by the hinge shaft 313. The second end of the second closure 312 is bent inward toward the side of the first closure 311 to form a hook-shaped body 3110. The elastic element is disposed between the first closure 311 and the second closure 312. The elastic element is configured to provide elastic force to bring the second end of the first closure 311 closer to the second end of the first closure 311 until the hook-shaped body 3110 abuts against the inner wall of the first closure 311 to complete the closure of the hook 31.

[0043] Specifically, the elastic element is set as a torsion spring.

[0044] Through the cooperation of the first closing member 311, the second closing member 312 and the elastic member of the hook 31, the hook 31 has an automatic closing function. After connection, it can be automatically locked by the elastic force to prevent it from coming off due to vibration or external force, thereby improving the safety, reliability and service life of the strap.

[0045] In one embodiment, the hook-like body 3110 has an open hook groove 3111 on its inner side, and the bottom of the hook groove 3111 is adapted to the metal ring 40.

[0046] By providing a hook groove 3111 that matches the metal ring 40 on the inner side of the hook body 3110, a stable engagement is achieved between the hook 31 and the metal ring 40. While maintaining the detachable function, the tensile strength and impact resistance of the connector are enhanced, avoiding the risk of disengagement under high-intensity vibration.

[0047] In one embodiment, a first limiting plate 3112 and a second limiting plate (not shown in the figure) are provided at a distance from the first end of the first closing member 311 along the axial direction of the hinge shaft 313. A limiting gap is formed between the first limiting plate 3112 and the second limiting plate. The first end of the second closing member 312 is disposed in the limiting gap. The limiting gap is configured to limit the first closing member 311 along the axial direction of the hinge shaft 313.

[0048] By setting a limiting plate structure on the first closing member 311, the second closing member 312 is limited along the hinge axis 313, which can prevent the closing member from axially displacing under the action of external force, thereby maintaining the stability of the closed state of the hook 31 and further improving the overall reliability of the latch 30.

[0049] In one embodiment, the adjusting buckle 32 includes a bracket 320, a first winding post 321, and a second winding post 322, wherein:

[0050] The first winding post 321 and the second winding post 322 are arranged at intervals and parallel on the bracket 320, forming a winding gap between the first winding post 321 and the second winding post 322. The bracket 320 is provided with two sliding grooves 3200. The two ends of the first winding post 321 are slidably arranged in the sliding grooves 3200 so that the first winding post 321 is close to or away from the second winding post 322. At least the first winding post 321 is provided with a protruding ridge.

[0051] The second end of the first belt 10 passes through the same side of the second winding post 322 and the first winding post 321 in sequence, fits against the first winding post 321, passes through the winding gap, and is led out from the side of the second winding post 322. When the first belt 10 is tightened, the first winding post 321 slides toward the second winding post 322 until both ends of the first winding post 321 abut against the first end of the sliding groove 3200. The inner sides of the first belt 10 abut against each other on the second winding post 322 to fix the first belt 10.

[0052] Specifically, the sliding groove is set along the width direction of the bracket 320.

[0053] Specifically, the surface of the first winding post 321 is provided with protruding ridges.

[0054] By adjusting the cooperation of the bracket 320, the first winding post 321 and the second winding post 322 inside the buckle 32, the length of the belt can be adjusted by sliding winding. By setting a protruding rib on the first winding post 321, the belt can be automatically locked when under tension, thereby achieving the anti-slip function and improving the tension retention and adjustment accuracy of the strap.

[0055] In one embodiment, the sliding groove 3200 is inclined toward the introduction direction of the first belt 10.

[0056] By tilting the sliding groove 3200 away from the direction of belt introduction, the first winding post 321 automatically moves towards the locking direction under force. This achieves a self-locking effect by utilizing tension, while also increasing the contact area between the belt and the second winding post 322, enhancing the strap's resistance to loosening, and reducing length changes caused by vibration.

[0057] In one embodiment, the length of the first belt 10 is greater than the length of the second belt 20.

[0058] By designing the length of the first strap 10 to be greater than the length of the second strap 20, it is easy to adjust flexibly to fix life rafts of different sizes, thus improving the applicability and flexibility of the straps.

[0059] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above examples. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A restraint system for an aircraft life raft, characterized in that, The restraint system of the aviation life raft includes a first belt, several second belts, a first connector, and a second connector, wherein: The first end of the first belt is fixedly mounted on the bulkhead near the first end of the life raft. The first belt is adjustablely threaded through the first connector. The first ends of several second belts are fixedly connected to preset positions on the bulkhead near the second end of the life raft. The second ends of several second belts are fixedly connected to the second connector. The first connector and the second connector are detachably connected.

2. The restraint system for an aircraft life raft according to claim 1, characterized in that, The first connector is configured as a latch, and the second connector is configured as a metal ring.

3. The restraint system for an aircraft life raft according to claim 2, characterized in that, Several of the second strips are radially connected to the metal ring.

4. The restraint system for an aircraft life raft according to claim 2, characterized in that, The buckle includes a hook and an adjusting buckle. The first end of the hook is hinged to the first end of the adjusting buckle, and the second end of the adjusting buckle is connected to the first belt body. The adjusting buckle is configured to adjust the length of the first belt body and fix it in place. The second end of the hook is provided with a locking space, which has an opening that can be opened or closed. The metal ring can enter the locking space by opening the opening to connect with the hook.

5. The restraint system for an aircraft life raft according to claim 4, characterized in that, The hook includes a first closure member, a second closure member, a hinge shaft, and an elastic member. The first end of the first closure member and the first end of the second closure member are hinged together by the hinge shaft. The second end of the second closure member is bent inward toward one side of the first closure member to form a hook-like body. The elastic member is disposed between the first closure member and the second closure member. The elastic member is configured to provide elastic force to bring the second end of the first closure member closer to the second end of the first closure member until the hook-like body abuts against the inner wall of the first closure member to complete the closure of the hook.

6. The restraint system for an aircraft life raft according to claim 5, characterized in that, The inner side of the hook-shaped body has an open hook groove, the bottom of which is adapted to the metal ring.

7. The restraint system for an aircraft life raft according to claim 5, characterized in that, The first end of the first closure member is provided with a first limiting plate and a second limiting plate at intervals along the axial direction of the hinge axis, and a limiting gap is formed between the first limiting plate and the second limiting plate. The first end of the second closure member is disposed in the limiting gap, and the limiting gap is configured to limit the first closure member along the axial direction of the hinge axis.

8. The restraint system for an aircraft life raft according to claim 5, characterized in that, The adjusting buckle includes a bracket, a first winding post, and a second winding post, wherein: The first winding post and the second winding post are arranged on the bracket at intervals and parallel to each other, and a winding gap is formed between the first winding post and the second winding post. The bracket is provided with two sliding grooves, and the two ends of the first winding post are slidably arranged in the sliding grooves so that the first winding post is close to or away from the second winding post. At least the first winding post is provided with a protruding ridge. After the second end of the first belt passes through the same side of the second winding post and the first winding post in sequence, it fits against the first winding post and passes through the winding gap before being led out from one side of the second winding post. When the first belt is tightened, the first winding post slides toward the second winding post until both ends of the first winding post abut against the first end of the sliding groove. The inner sides of the first belt abut against each other on the second winding post to fix the first belt.

9. The restraint system for an aircraft life raft according to claim 8, characterized in that, The sliding groove is inclined toward the direction of introduction of the first belt.

10. The restraint system for an aircraft life raft according to claim 1, characterized in that, The length of the first strip is greater than the length of the second strip.

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