Sucker type neck injury prevention headrest

Abstract

The utility model belongs to the technical field of protection and lifesaving, and provides a sucker type neck injury prevention headrest which comprises a carbon fiber headrest, a sucker, a tee joint, a vacuum pump and an electromagnetic valve. A closed space is formed between one end of the suction cup and the helmet, and the head of a pilot is tightly attached to the other end of the suction cup, so that when the electromagnetic valve is in a closed state, air between the suction cup and the helmet can be rapidly pumped out, and vacuum is formed. According to the utility model, not only can neck injury caused by an upward ejection head lowering effect be prevented, but also head beating formed under the blowing action of high-speed airflow can be prevented; the device is simple in structure, small in occupied space, high in reliability and good in protection effect.

Description

Technical Field

[0001] This utility model belongs to the field of protection and lifesaving, and relates to neck protection technology for pilots during ejection, specifically a suction cup type headrest to prevent neck injury. Background Technology

[0002] When fighter pilots eject, they experience a head-down effect, and at the moment of exiting the cockpit, they are also hit by a high-speed airflow, which can easily cause head impact or neck injury.

[0003] Currently, there are two types of neck protection for pilots. One is a rigid neck protection device, which uses high-pressure gas as power and uses a head plate to press down the pilot's head in advance during ejection to avoid head impact when encountering high-speed airflow. The other is an airbag neck protection device, which uses high-pressure gas to inflate and deploy three airbags at the back and sides of the head to prevent injury from impact during ejection.

[0004] The common technical problem with these two types of neck protection is that neither can solve the neck injury caused by the head-down effect. Utility Model Content

[0005] The purpose of this invention is to provide a suction cup-type headrest to prevent neck injuries during ejection.

[0006] The technical solution adopted by this utility model is as follows: A suction cup type headrest for preventing neck injury includes a carbon fiber headrest, a suction cup, a three-way valve, a vacuum pump, and a solenoid valve. One end of the carbon fiber headrest is provided with a suction cup, and the other end is connected to one end of the three-way valve through an air tube. The other two ends of the three-way valve are respectively connected to the vacuum pump and the solenoid valve through air tubes. One end of the suction cup forms a sealed space with the helmet. When the pilot's head is in close contact with the other end of the suction cup, and the solenoid valve is in the closed state, the air between the suction cup and the helmet can be quickly extracted to form a vacuum.

[0007] In the above scheme, the suction cup has a concave structure with a small hole in the center.

[0008] In the above scheme, the suction cup is made of rubber or silicone material.

[0009] In the above solution, the headrest for preventing neck injury also includes a nozzle and a thin rod. The nozzle is a hollow structure in the shape of a flared mouth, and the thin rod passes through a small hole in the center of the suction cup. The flared mouth and the suction cup are connected by heat pressing.

[0010] In the above scheme, the tee has three ports, which are connected to the vacuum pump, the nozzle, and the solenoid valve respectively through plastic air tubes.

[0011] In the above scheme, the solenoid valve is a normally open solenoid valve, which is connected to the air when not energized and closes when energized.

[0012] In the above scheme, the vacuum pump is a miniature vacuum pump.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1) Simple structure and small footprint;

[0015] 2) It is simple to use and combines with the pilot's ejection maneuvers, requiring no extra actions;

[0016] 3) It has strong adsorption force, is not easy to detach, has high reliability, and has good protective effect. It can prevent neck injury caused by the upward ejection and head-down effect, and also prevent head blows caused by high-speed airflow.

[0017] 4) Simple control, the solenoid valve is always open, the suction cup is connected to the air, and negative pressure cannot be formed. When used as a headrest during normal flight, it can provide soft support. Attached Figure Description

[0018] Figure 1 This is a diagram showing the components of the suction cup type neck protection headrest of this utility model;

[0019] Figure 2 This is a cross-sectional view of the headrest of this utility model.

[0020] The markings in the diagram are: 1-carbon fiber headrest, 2-suction cup, 3-connector, 4-tee, 5-vacuum pump, 6-solenoid valve. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1 , 2 The suction cup type neck injury prevention headrest consists of a carbon fiber headrest 1, a suction cup 2, a nozzle 3, a three-way valve 4, a vacuum pump 5, and a solenoid valve 6.

[0023] The carbon fiber head rest provides support and reliable support for the head during normal flight and ejection.

[0024] The suction cup 2 has a concave structure, is made of rubber or silicone, has a smooth surface, is soft and elastic, and has a small hole in the center.

[0025] The nozzle 3 is a hollow structure in the shape of a trumpet. The thin rod passes through the small hole in the center of the suction cup 2, and the trumpet and the suction cup 2 are connected together by heat pressing.

[0026] The three-way valve 4 has three ports, which are respectively connected to the vacuum pump 5, the connector 3, and the solenoid valve 6 via plastic air tubes.

[0027] The solenoid valve 6 is a normally open solenoid valve, which is connected to air when not energized and closes when energized.

[0028] The vacuum pump 5 is a miniature vacuum pump. When the pilot's head is pressed against the suction cup 2 and the solenoid valve 6 is closed, the air between the suction cup 2 and the helmet can be quickly extracted to form a vacuum.

[0029] The implementation principle of this utility model embodiment is as follows: During normal flight, the suction cup 2 is connected to the air through the normally open solenoid valve 6, preventing the formation of negative pressure and thus providing head support; Figure 2 As shown, when the central pull ring is pulled to initiate ejection, as the anti-ejection preparation action is performed, the helmet is pressed tightly against the suction cup 2. The seat controller sends a signal to the vacuum pump 5 and the solenoid valve 6. The air circuit of the solenoid valve 6 is closed, and the vacuum pump 5 evacuates the suction cup 2. As the air between the helmet and the suction cup 2 is evacuated, the pilot's head will be attracted to the headrest to form protection. When the speed of the person and seat decreases and it is necessary to separate the person and seat, the solenoid valve 6 is de-energized, the negative pressure is eliminated, and the head can be quickly detached.

[0030] 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 suction cup type headrest for preventing neck injury, comprising a carbon fiber headrest (1), a suction cup (2), a three-way valve (4), a vacuum pump (5), and a solenoid valve (6), characterized in that: The carbon fiber headrest (1) is equipped with a suction cup (2) at one end and is connected to one end of a three-way valve (4) through an air pipe at the other end. The other two ends of the three-way valve (4) are connected to a vacuum pump (5) and a solenoid valve (6) through air pipes respectively. A sealed space is formed between one end of the suction cup (2) and the helmet. When the pilot's head is pressed against the other end of the suction cup (2) and the solenoid valve (6) is in the closed state, the air between the suction cup (2) and the helmet can be quickly extracted to form a vacuum.

2. The suction cup type headrest for preventing neck injury as described in claim 1, characterized in that: The suction cup (2) has a concave structure with a small hole in the center.

3. A suction cup type headrest for preventing neck injury as described in claim 2, characterized in that: The suction cup (2) is made of rubber or silicone.

4. A suction cup type headrest for preventing neck injury as described in claim 3, characterized in that: The headrest for preventing neck injury also includes a nozzle (3) and a thin rod. The nozzle (3) is a hollow structure in the shape of a flared mouth. The thin rod passes through a small hole in the center of the suction cup (2). The flared mouth and the suction cup (2) are connected by heat pressing.

5. A suction cup type headrest for preventing neck injury as described in claim 4, characterized in that: The tee (4) has three ports, which are connected to the vacuum pump (5), the nozzle (3), and the solenoid valve (6) respectively through plastic air pipes.

6. A suction cup type headrest for preventing neck injury as described in claim 1, characterized in that: The solenoid valve (6) is a normally open solenoid valve, which is connected to the air when not energized and closes when energized.

7. A suction cup type headrest for preventing neck injury as described in claim 1, characterized in that: The vacuum pump (5) is a miniature vacuum pump.

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