A modular inflatable cold-proof and life-saving flight suit

Abstract

This utility model relates to the field of flight suit technology, specifically a modular inflatable cold-weather survival flight suit, including a flight suit body, on which a modular inflatable structure is fitted. The modular inflatable structure is used for emergency protection within the flight suit. The modular inflatable structure includes an airbag vest. This utility model utilizes the mechanical coupling of an internal threaded sleeve, a fixing ring, and an L-shaped lever to automatically drive the linkage disc to rotate during the final stage of tightening the inflation tube. This, in turn, precisely controls the synchronous rotation and opening of six sets of sealing blocks via hexagonal contact grooves. This process is entirely completed naturally by the rotational action, requiring no additional steps, ensuring both a tight airtight connection and simultaneous release of the sealed inflation channel. The combined design of the rubber sealing sheet and sealing blocks reliably prevents gas leakage under normal conditions and provides guidance and secondary sealing for the air intake pipe during inflation. The entire mechanism integrates connection reliability, ease of operation, and system sealing.

Description

Technical Field

[0001] This utility model relates to the field of flight suit technology, specifically a modular inflatable cold-proof and life-saving flight suit. Background Technology

[0002] The life-saving flight suit is a crucial piece of armor for pilots during emergency ejection. Like a second skin, it tightly wraps around the torso and limbs. Its internal airbags rapidly inflate under high-speed airflow, creating stable pressure to protect bones and internal organs from immense G-forces. Simultaneously, the special fabric insulates against the extreme cold of high altitudes and the intense heat generated by high-speed friction, maintaining the pilot's body temperature and perceived safety. It's not only a buffer during ejection but also a vital survival tool after landing in water or complex terrain—its bright colors facilitate search and rescue identification, and its built-in emergency supplies provide basic survival support while awaiting rescue. From ejection to landing and awaiting rescue, this suit safeguards the pilot's lifeline.

[0003] In existing technologies, integrating emergency inflatable protective functions into flight suits generally faces a contradiction between operational complexity and system integration. Common solutions often design the air circuit connection mechanism and valve control mechanism as independent components. In an emergency, the user must perform multiple actions sequentially: first, physically connect and secure the inflation tube to the air inlet, then operate a separate switch or knob to open the internal ventilation valve. This step-by-step process is highly susceptible to errors in the operational sequence, omissions, or failure to fully open the valve due to panic under emergency high-pressure conditions, resulting in wasted precious inflation time and potentially preventing the airbag from inflating quickly enough at critical moments, posing a safety hazard. On the other hand, existing technologies often rigidly fix or integrally sew the inflatable protective structure to the flight suit body. When the airbag system needs maintenance, the inflation equipment needs replacement, or the protective configuration needs adjustment according to mission requirements, the entire suit must be complexly disassembled, resulting in high maintenance costs and extremely poor flexibility. Meanwhile, the sealing design at the gas connection points often has flaws. Either relying on a single sealing structure leads to wear and leakage after frequent insertion and removal, or using overly complex multi-locking mechanisms at the expense of operational speed. These substantial defects collectively point to the core challenge of simplifying emergency operation procedures and achieving flexible system configuration while ensuring absolute reliability.

[0004] In view of this, we propose a modular inflatable cold-proof life-saving flight suit. Utility Model Content

[0005] The purpose of this utility model is to provide a modular inflatable cold-proof and life-saving flight suit. This modular inflatable cold-proof and life-saving flight suit solves the problems of existing emergency inflatable suits being cumbersome to operate, unreliable, difficult to maintain, and inflexible in configuration.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A modular inflatable cold-weather survival flight suit includes a flight suit body, with a modular inflatable structure fitted over the outside of the flight suit body. The modular inflatable structure is used for emergency protection of the flight suit. The modular inflatable structure includes an airbag vest, with an inflation device attached to the outside of the airbag vest. The airbag vest is fixed to the flight suit body by buckle straps. An air inlet pipe is provided at the bottom of the inflation device. An air inlet is fixedly connected to the surface of the airbag vest. An external threaded post is fixedly connected to the top surface of the air inlet. An internal threaded sleeve is threaded through and threaded onto the external threaded post. A sealing block is provided inside the air inlet. A lever is fixedly connected to the top of the sealing block and a lever is fixedly connected to the bottom of the sealing block. A linkage plate is rotatably connected inside the air inlet. An abutment groove is formed on the top surface of the linkage plate.

[0008] Preferably, an L-shaped lever is fixedly connected to the side of the linkage disc, and a movable groove is provided on the side of the air inlet, through which the L-shaped lever passes.

[0009] Preferably, the number of sealing blocks is six sets, and the six sets of sealing blocks are arranged in a circumferential array with the center line of the air inlet as the axis.

[0010] Preferably, the contact groove is hexagonal in shape, and the lever 2 is inserted into the contact groove.

[0011] Preferably, a limiting groove is formed inside the air inlet, and the lever is inserted into the limiting groove.

[0012] Preferably, a fixing ring is fitted and fixedly connected to the outer side of the internal threaded sleeve, and the surface of the fixing ring is provided with an arc-shaped linkage groove.

[0013] Preferably, a rubber sealing sheet is fixedly connected to the inner side of the air inlet, and the number of rubber sealing sheets is four sets, and the four sets of rubber sealing sheets are arranged in a circumferential array with the center line of the air inlet as the axis.

[0014] By employing the above technical solution, this utility model provides a modular inflatable cold-proof and life-saving flight suit. It possesses at least the following beneficial effects:

[0015] 1. This utility model utilizes the mechanical coupling of an internal threaded sleeve, a fixing ring, and an L-shaped lever to automatically drive the linkage disc to rotate during the final stage of tightening the inflation tube. This, in turn, precisely controls the synchronous rotation and opening of six sets of sealing blocks via hexagonal contact grooves. The entire process is completed naturally by the rotational action, requiring no additional steps. This ensures a tight airtight connection while simultaneously releasing the sealed state of the inflation channel. The combined design of the rubber sealing sheet and sealing blocks reliably prevents gas leakage under normal conditions and provides guidance and secondary sealing for the air inlet pipe during inflation. The entire mechanism integrates connection reliability, ease of operation, and system sealing.

[0016] 2. The flight suit body of this utility model is made of professional cold-weather material, focusing on basic protection and warmth. The airbag vest and its inflation system are independent modules, which can be quickly assembled and disassembled through standardized buckle straps. This design allows for flexible configuration of protection levels according to different mission requirements, or maintenance, upgrading, or even replacement of individual modules without having to deal with the entire garment, significantly reducing usage and maintenance costs. At the same time, the core components of the inflation mechanism, such as the linkage plate and sealing block assembly, are integrated inside the air inlet, with a compact structure and protected by the outer shell. The interfaces between modules involve only simple mechanical docking and threaded connections, which not only ensures the functional integrity of the modules as independent units, but also makes the deployment and retrieval of the entire emergency system quick and reliable. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the back structure in this utility model;

[0020] Figure 3 This is a schematic diagram of the modular inflatable structure in this utility model;

[0021] Figure 4 This is a bottom view of the intake pipe end structure in this utility model;

[0022] Figure 5 This is a top view of the air inlet structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the internal structure of the intake pipe in this utility model;

[0024] Figure 7 This is a schematic diagram showing the unfolded internal structure of the air intake pipe in this utility model.

[0025] In the diagram: 1. Flight suit body; 2. Modular inflatable structure; 21. Airbag vest; 22. Inflating device; 23. Air inlet pipe; 24. Buckle strap; 25. Air inlet; 26. Internal threaded sleeve; 27. Fixing ring; 28. Arc-shaped linkage groove; 29. ​​External threaded post; 210. Linkage plate; 211. Contact groove; 212. Sealing block; 213. Lever one; 214. Lever two; 215. Limiting groove; 216. L-shaped lever; 217. Movable groove; 218. Rubber sealing sheet. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] A modular inflatable cold-weather survival flight suit, such as Figure 1 - Figure 6As shown, the flight suit includes a flight suit body 1, with a modular inflatable structure 2 covering the outside of the flight suit body 1. The modular inflatable structure 2 is used for emergency protection of the flight suit. The flight suit body 1 is made of cold-proof material, and the modular inflatable structure 2 covers the outside of it for emergency protection. The modular inflatable structure 2 includes an airbag vest 21, which can be modularly disassembled and installed via buckle straps 24. The modular inflatable structure 2 includes an airbag vest 21, and an inflation device 22 is attached to the outside of the airbag vest 21. The airbag vest 21 is connected to the flight suit via buckle straps 24. The garment body 1 is fixed. An air inlet pipe 23 is provided at the bottom of the inflation device 22. An air inlet 25 is fixedly connected to the surface of the airbag vest 21. An external threaded post 29 is fixedly connected to the top surface of the air inlet 25. An internal threaded sleeve 26 is threaded through and threaded onto the external threaded post 29. A sealing block 212 is provided inside the air inlet 25. A lever 1 213 is fixedly connected to the top of the sealing block 212, and a lever 214 is fixedly connected to the bottom of the sealing block 212. A linkage disc 210 is rotatably connected inside the air inlet 25. An abutment groove 211 is provided on the top surface of the linkage disc 210. An L-shaped lever 216 is fixedly connected to the side of the linkage disc 210. A movable groove 217 is provided on the side of the air inlet 25, through which the L-shaped lever 216 passes. There are six sets of sealing blocks 212, arranged in a circular array around the center line of the air inlet 25. The contact groove 211 is hexagonal in shape, and the lever 214 is inserted into the contact groove 211. The air inlet 25 has a limiting groove 215 inside, and the lever 213 is inserted into the limiting groove 215.When emergency protection needs to be activated, the inflation device 22 is operated, and the generated gas is delivered to the air inlet 25 on the surface of the airbag vest 21 through the air inlet pipe 23 at the bottom. In the initial state, a sealing block 212 is provided inside the air inlet 25. A lever 213 is fixedly connected to the top of the sealing block 212. The lever 213 is inserted into the limiting groove 215 opened inside the air inlet 25 to realize the vertical limitation of the sealing block 212. A lever 214 is fixedly connected to the bottom of the sealing block 212. The lever 214 is inserted into the hexagonal contact groove 211 opened on the top surface of the linkage plate 210 rotatably connected inside the air inlet 25. An L-shaped lever 216 is fixedly connected to the side of the linkage plate 210. The L-shaped lever 216 passes through the movable groove 217 opened on the side of the air inlet 25 and extends to the outside. At this time, the internal thread on the external threaded post 29 on the top surface of the air inlet 25 is rotated. The threaded sleeve 26; when the internal threaded sleeve 26 and the external threaded post 29 are about to be tightened, the fixing ring 27 will gradually approach the L-shaped lever 216, so that the L-shaped lever 216 will gradually insert into the arc-shaped linkage groove 28; as the internal threaded sleeve 26 rotates, the fixing ring 27 will drive the L-shaped lever 216 to rotate, so that the L-shaped lever 216 will drive the linkage disk 210 to rotate; the rotation of the linkage disk 210 causes the inclined surface of the hexagonal contact groove 211 opened on its top surface to drive the second lever 214 inserted therein; since the second lever 214 is fixedly connected to the sealing block 212, and the first lever 213 is restricted in the limiting groove 215, the radial movement of the second lever 214 will drive the sealing block 212 to slide outward along the radial direction of the air inlet 25, so that the six sets of sealing blocks 212 arranged in a circumferential array with the center line of the air inlet 25 as the axis will no longer close, forming a central channel.

[0028] A retaining ring 27 is fitted and fixedly connected to the outer side of the internal threaded sleeve 26, and an arc-shaped linkage groove 28 is formed on the surface of the retaining ring 27. A rubber sealing sheet 218 is fixedly connected to the inner side of the air inlet 25. There are four sets of rubber sealing sheets 218, and the four sets of rubber sealing sheets 218 are arranged in a circumferential array with the center line of the air inlet 25 as the axis. Four sets of rubber sealing sheets 218, fixedly connected to the inner side of the air inlet 25 and arranged in a circular array with the center line of the air inlet 25 as the axis, can ensure the outer circumference seal when the air inlet pipe 23 is inserted after the sealing block 212 is removed. At this time, the air inlet pipe 23 can smoothly pass through the center of the opened sealing block 212 and the rubber sealing sheets 218 to enter the air inlet 25 for connection and inflation. The gas can enter the airbag vest 21 through the opened air inlet 25, causing it to inflate rapidly and form an emergency protective air cushion. After inflation, the reverse screwing of the inner threaded sleeve 26 can drive the linkage plate 210 to reverse. Under the guidance of the limit groove 215 and the lever 213, the sealing block 212 is radially reset inward, resealing the air inlet 25.

[0029] In use, the modular inflatable cold-weather survival flight suit of this utility model, when emergency protection needs to be activated, operates the inflation device 22, and the generated gas is delivered to the air inlet 25 on the surface of the airbag vest 21 through the air inlet pipe 23 at the bottom. In the initial state, a sealing block 212 is provided inside the air inlet 25, and a lever 213 is fixedly connected to the top of the sealing block 212. The lever 213 is inserted into the limiting groove 215 opened inside the air inlet 25 to realize the vertical limitation of the sealing block 212. A lever 214 is fixedly connected to the bottom of the sealing block 212, and the lever 214 is inserted into the air inlet 25 and rotatably connected. The hexagonal contact groove 211 is opened on the top surface of the linkage plate 210; an L-shaped lever 216 is fixedly connected to the side of the linkage plate 210, and the L-shaped lever 216 passes through the movable groove 217 opened on the side of the air inlet 25 and extends to the outside; at this time, the internal threaded sleeve 26 is rotated and fitted on the external threaded post 29 on the top surface of the air inlet 25; when the internal threaded sleeve 26 and the external threaded post 29 are about to be tightened, it will drive the fixing ring 27 to gradually approach the L-shaped lever 216, so that the L-shaped lever 216 will gradually insert into the arc-shaped linkage groove 28; with the final rotation of the internal threaded sleeve 26, it will drive the L-shaped lever 216 to rotate through the fixing ring 27, so that... L-shaped lever 216 actuates the linkage plate 210 to rotate; the rotation of the linkage plate 210 causes the inclined surface of the hexagonal contact groove 211 on its top surface to actuate the second lever 214 inserted therein; since the second lever 214 is fixedly connected to the sealing block 212 and the first lever 213 is restricted in the limiting groove 215, the radial movement of the second lever 214 will drive the sealing block 212 to slide outward along the radial direction of the air inlet 25, thereby causing the six sets of sealing blocks 212 arranged in a circular array with the center line of the air inlet 25 as the axis to no longer close, forming a central channel; at the same time, the four sets of sealing blocks 212 fixedly connected to the inner side of the air inlet 25 with the center line of the air inlet 25 as the axis to move outward, thus causing the sealing block 212 to no longer close, forming a central channel; at the same time, the four sets of sealing blocks 212 arranged in a circular array with the center line of the air inlet 25 as the axis to move outward, will move outward, thus causing the sealing block 212 to no longer close, thus ... causing the sealing The rubber sealing sheet 218, which is set for the axial circumferential array, can ensure the outer circumferential seal when the air inlet pipe 23 is inserted after the sealing block 212 is removed. At this time, the air inlet pipe 23 can pass smoothly through the center of the opened sealing block 212 and the rubber sealing sheet 218 into the air inlet 25 for connection and inflation. The gas can enter the airbag vest 21 through the opened air inlet 25, causing it to inflate rapidly and form an emergency protective air cushion. After inflation, the reverse screwing of the inner thread sleeve 26 can drive the linkage plate 210 to reverse. Under the guidance of the limit groove 215 and the lever 213, the sealing block 212 is radially reset inward, resealing the air inlet 25.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular inflatable cold-weather survival flight suit, comprising a flight suit body (1), characterized in that: The flight suit body (1) is covered with a modular inflatable structure (2); The modular inflatable structure (2) is used for emergency protection of the flight suit; The modular inflatable structure (2) includes an airbag vest (21), an inflation device (22) is mounted on the outside of the airbag vest (21), the airbag vest (21) is fixed to the flight suit body (1) by buckle straps (24), an air inlet pipe (23) is provided at the bottom of the inflation device (22), an air inlet (25) is fixedly connected to the surface of the airbag vest (21), an external threaded post (29) is fixedly connected to the top surface of the air inlet (25), an internal threaded sleeve (26) is threaded through and threaded to the external threaded post (29), a sealing block (212) is provided inside the air inlet (25), a lever one (213) is fixedly connected to the top of the sealing block (212), a lever two (214) is fixedly connected to the bottom of the sealing block (212), a linkage disc (210) is rotatably connected inside the air inlet (25), and an abutment groove (211) is opened on the top surface of the linkage disc (210).

2. The modular inflatable cold-weather survival flight suit according to claim 1, characterized in that: An L-shaped lever (216) is fixedly connected to the side of the linkage plate (210), and an active groove (217) is provided on the side of the air inlet (25), through which the L-shaped lever (216) passes.

3. The modular inflatable cold-weather survival flight suit according to claim 1, characterized in that: The number of the sealing blocks (212) is six, and the six sets of sealing blocks (212) are arranged in a circular array with the center line of the air inlet (25) as the axis.

4. The modular inflatable cold-weather survival flight suit according to claim 1, characterized in that: The contact groove (211) is hexagonal in shape, and the lever (214) is inserted into the contact groove (211).

5. A modular inflatable cold-weather survival flight suit according to claim 1, characterized in that: The air inlet (25) has a limiting groove (215) inside, and the lever (213) is inserted into the limiting groove (215).

6. A modular inflatable cold-weather survival flight suit according to claim 1, characterized in that: A fixing ring (27) is fitted and fixedly connected to the outer side of the internal threaded sleeve (26), and an arc-shaped linkage groove (28) is opened on the surface of the fixing ring (27).

7. A modular inflatable cold-weather survival flight suit according to claim 1, characterized in that: A rubber sealing sheet (218) is fixedly connected to the inner side of the air inlet (25). There are four sets of rubber sealing sheets (218), and the four sets of rubber sealing sheets (218) are arranged in a circular array with the center line of the air inlet (25) as the axis.

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