Pilot head and neck protection device based on rocket ejection seat during high-speed ejection

Abstract

The utility model belongs to the field of aviation lifesaving, and provides a pilot head and neck protection device based on high-speed ejection of a rocket ejection seat, which is mounted on a lifesaving parachute control belt, the upper end of a protective fabric is fixed near the middle of the control belt, the lower end of the protective fabric can slide up and down along with the control belt, and two corners of the protective fabric are connected with a pull rope; miniature pulleys are fixedly mounted at the lower ends of the operating belts; during ejection lifesaving, the control belt is straightened upwards under the action of parachute opening force, and the pull rope moves around the miniature pulley, so that the lower end of the protective fabric is pulled to move downwards to the lower end of the control belt along with the control belt, and the protective fabric is unfolded; and the rear part of the head of the pilot just falls into the flexible fabric, so that the protective fabric is unfolded to the rear part of the head of the pilot at the moment that the high-speed ejection control belt of the rocket ejection seat is straightened and the rocket ejection seat is separated from the rocket ejection seat, the rear part of the head of the pilot is supported, and neck injury caused by excessive backward leaning of the head and the neck of the pilot is prevented.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft occupant protection and rescue, and relates to a pilot head and neck protection device based on the high-speed ejection of a rocket ejection seat. Background Technology

[0002] Currently, during the high-speed ejection of a rocket ejection seat, the parachute control straps straighten at the moment of deployment, separating the pilot from the ejection seat. As the pilot's head leaves the headrest, they are subjected to a strong oncoming airflow, causing their head to tilt violently backward. At this moment, the pilot's head and neck are highly susceptible to injury, potentially even death. Therefore, developing a protective device that effectively protects the pilot's head and neck during the high-speed ejection of a rocket ejection seat at the moment the parachute straightens is an urgent problem for ejection seat designers to solve. Utility Model Content

[0003] The purpose of this invention is to provide a head and neck protection device for pilots during high-speed ejection from a rocket ejection seat. This device can provide support for the back of the pilot's head during high-speed ejection from a rocket ejection seat, when the control straps are straightened, the pilot separates from the seat, and the pilot's head is violently tilted back in the face of the oncoming high-speed airflow, so as to prevent the pilot's head and neck from being injured due to excessive tilting back.

[0004] The technical solution adopted in this utility model is as follows: A head and neck protection device for pilots during high-speed ejection from a rocket ejection seat includes a control belt, a protective fabric, a pull rope, and a miniature pulley. The head and neck protection device is installed and fixed on the control belt of the life-saving parachute. The upper end of the protective fabric is fixed near the middle of the control belt, and the lower end can slide up and down with the control belt. The two corners are connected to the pull rope. The lower end of the control belt is fixed with a miniature pulley. One end of the pull rope is connected to the two corners of the lower end of the protective fabric, passes around the miniature pulley, and the other end is fixed to the middle of the main body of the control belt. During ejection, the control belt is pulled upward by the parachute opening force, and the pull rope moves around the miniature pulley, thereby pulling the lower end of the protective fabric down with the control belt to the lower end of the control belt, so that the protective fabric unfolds.

[0005] In the above scheme, the protective fabric is folded and retracted to the middle of the control belt during use. The middle of the control belt is folded in a zigzag shape. The protective fabric is a flexible fabric.

[0006] In the aforementioned design, the protective device also includes a pilot and a rocket ejection seat. A straightened control strap pulls the pilot away from the ejection seat, allowing the back of the pilot's head to fall directly into the protective fabric. The size of the protective fabric is adapted to the shape of the pilot's head and neck.

[0007] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0008] In this invention, by setting up a pilot head and neck protection device, when the ejection seat is ejected at high speed, the folded protective fabric can be quickly straightened and unfolded behind the pilot's head the moment the control strap of the life-saving parachute is straightened. This provides support for the back of the pilot's head and prevents the pilot from tilting their head and neck too far back when facing the oncoming high-speed airflow, thus avoiding neck injury. At the same time, it does not interfere with the normal connection and release of the control strap and the personalized harness. Attached Figure Description

[0009] Figure 1 A schematic diagram showing the addition of a head and neck protection device to the control strap of the life-saving parachute of this utility model;

[0010] Figure 2 For this utility model Figure 1 A schematic diagram of direction A;

[0011] Figure 3 This is a diagram showing the deployed state of the head and neck protection device after it has been activated when the control strap of the life-saving parachute is straightened.

[0012] Figure 4 This illustration shows how the rocket ejection seat of this utility model protects the pilot's head and neck during high-speed ejection.

[0013] The markings in the diagram are: 1 - control strap, 2 - protective fabric, 3 - pull rope, 4 - miniature pulley, 5 - pilot, and 6 - rocket ejection seat. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0015] Reference Figure 1 , 2 The system involves installing and securing a head and neck protection device on the control strap 1 of the life-saving parachute; the upper end of a flexible head and neck protection fabric 2 is fixed near the middle of the control strap 1, while the lower end can slide up and down with the control strap 1; pull ropes 3 are connected to the two lower corners of the flexible head and neck protection fabric 2; miniature pulleys 4 are installed and fixed near the lower end of the control strap 1; one end of the pull rope 3 is connected to the two lower corners of the protection fabric 2, then passes over the miniature pulleys 4, and the other end is fixed near the middle of the main body of the control strap 1. During normal use, the protection fabric 2 is folded and retracted to near the middle of the control strap 1; the middle of the control strap 1 is folded in a zigzag pattern (reference). Figure 2 To ensure the pull rope 3 remains taut; during ejection seat rescue, the control belt 1 will be pulled upwards by the parachute deployment force. This tautness causes the pull rope 3 to move around the miniature pulley 4, thereby pulling the lower end of the protective fabric 2 down with the control belt 1. At this point, the protective fabric 2 unfolds as follows: Figure 3, Figure 4 state.

[0016] refer to Figure 4 The straightened control strap 1 pulls the pilot 5 away from the rocket ejection seat 6. At this time, the pilot 5 will be faced with the oncoming high-speed airflow. The back of the pilot 5's head will fall into the flexible head and neck protection fabric 2. The protection fabric 2 provides support for the back of the pilot 5's head, thereby preventing the pilot 5's head and neck from tilting back excessively and causing neck injury.

[0017] The working principle of this invention is as follows: A piece of appropriately sized flexible fabric is installed at a suitable position on the parachute control strap. The upper end of the fabric is fixed near the middle of the control strap body, while the lower end can slide up and down with the control strap. During normal use, the protective fabric is folded and stored near the middle of the control strap. When the ejection seat control strap is straightened, the lower end of the fabric slides to the lower end of the control strap, the protective fabric unfolds, and the back of the pilot's head falls precisely into the flexible fabric. This ensures that at the moment of high-speed ejection of the rocket ejection seat control strap straightening and the pilot separates from the seat, the protective fabric unfolds to the back of the pilot's head, providing support and preventing excessive backward tilting of the pilot's head and neck, thus preventing neck injury. During normal assembly and use, the protective fabric can be folded and stored without affecting the normal connection and release of the control strap and harness. The upper end of the protective fabric is fixed to the middle of the control strap, and the lower end can slide up and down with the control strap body. During high-speed ejection of the rocket ejection seat, at the moment the parachute control strap straightens, the folded protective fabric can be quickly straightened and unfolded to the back of the pilot's head, providing support.

[0018] The above technical solutions are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Therefore, any equivalent changes made in accordance with the scope of this utility model patent shall still fall within the protection scope of this utility model.

Claims

1. A pilot head and neck protection device based on high-speed ejection from a rocket ejection seat, comprising a control strap (1), protective fabric (2), a pull rope (3), and a miniature pulley (4), characterized in that: The upper end of the protective fabric (2) is fixed near the middle of the control belt (1), and the lower end can slide up and down with the control belt (1). The two corners are connected to the pull rope (3). The lower end of the control belt (1) is equipped with a fixed miniature pulley (4). One end of the pull rope (3) is connected to the two corners of the lower end of the protective fabric (2), and then passes around the miniature pulley (4). The other end is fixed to the middle of the main body of the control belt (1). During ejection rescue, the control belt (1) is pulled straight up by the parachute opening force, and the pull rope (3) moves around the miniature pulley (4), thereby pulling the lower end of the protective fabric (2) down with the control belt (1) to the lower end of the control belt (1), so that the protective fabric (2) unfolds.

2. The pilot head and neck protection device based on high-speed ejection from a rocket ejection seat as described in claim 1, characterized in that: The protective fabric (2) is folded and retracted to the middle of the operating strap (1) when in use.

3. The pilot head and neck protection device based on high-speed ejection from a rocket ejection seat as described in claim 2, characterized in that: The middle part of the control belt (1) is folded in a "Z" shape.

4. The pilot head and neck protection device based on high-speed ejection from a rocket ejection seat as described in claim 3, characterized in that: The protective fabric (2) is a flexible fabric.

5. A pilot head and neck protection device based on a rocket ejection seat during high-speed ejection as described in claim 4, characterized in that: The protective device also includes a pilot (5) and a rocket ejection seat (6). The straightened control strap (1) pulls the pilot (5) away from the rocket ejection seat (6), so that the back of the pilot (5) falls into the protective fabric (2).

6. A pilot head and neck protection device based on a rocket ejection seat during high-speed ejection as described in claim 5, characterized in that: The size of the protective fabric (2) is adapted to the shape of the pilot's (5) head and neck.

Images