Helicopter seat energy absorption device

Abstract

The utility model relates to the technical field of helicopter seat corollary equipment, and discloses a helicopter seat energy absorption device which comprises a sliding block, an energy absorption device and an energy absorption device, the energy absorption mechanism is arranged on the back surface of the sliding block; the energy absorption mechanism comprises an energy absorption plate, and the energy absorption plate is movably installed on the back face of the sliding block. The sliding block, the energy absorption plate, the height adjusting plate and the safety cross section are arranged, and the energy absorption plate and the safety cross section have high static strength, so that specified limiting load can be borne without starting; the weight of the energy absorption device can be reduced by installing and fusing the height adjusting plate and the energy absorption plate; when the energy-absorbing plate bears dynamic load, the safety section will be broken to absorb energy, and the safety section mainly bears static load, so that the rigidity of the energy-absorbing plate is reduced, the energy-absorbing process is more stable, and the safety of passengers in the energy-absorbing process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of helicopter seat supporting equipment, and more specifically, to an energy absorbing device for a helicopter seat. Background Art

[0002] The seats and occupant restraint system constitute the helicopter's anti-crash protection and are the last line of defense to ensure the safety of the pilot and occupants. The seats need to be designed with energy absorption devices to help the occupants absorb the energy during the helicopter crash and ensure that the energy absorbed by the occupants is within the human life tolerance limit. Energy absorption devices commonly used in helicopter seats include expansion tubes, contraction tubes, flip tubes and metal wires. However, the tubular device has the problems of complex manufacturing process and heavy weight, while the metal wire has the problems of low manufacturing precision and unstable energy absorption performance, which reduces the safety of the occupants in the energy absorption process of the energy absorption device, so it needs to be improved. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an energy absorption device for a helicopter seat, which has the advantage of more stable energy absorption performance.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a helicopter seat energy absorption device, comprising:

[0005] Slide block;

[0006] An energy absorbing mechanism, which is arranged on the back side of the sliding block;

[0007] Among them, the energy absorbing mechanism includes an energy absorbing plate, which is movably installed on the back of the sliding block, and a height adjustment plate is movably installed on the back of the energy absorbing plate. A safety section is opened on the top of the front of the sliding block, and the safety section can withstand static loads. After the sliding block breaks at the safety section, the energy absorbing plate can absorb energy and deform.

[0008] As a preferred technical solution of the utility model, it includes:

[0009] A height adjustment pin hole is provided on the front side of the height adjustment plate, a countersunk nail is threadedly sleeved on the inner thread of the height adjustment pin hole and the front side of the countersunk nail passes through the sliding block, and the countersunk nail can fix the sliding block and the height adjustment plate.

[0010] As a preferred technical solution of the utility model, a screw is movably installed at the bottom end of the energy absorbing plate, the top of the screw passes through the energy absorbing plate and extends to the inside of the sliding block, and the outer surface of the screw is threadedly connected to the inner wall of the sliding block.

[0011] As a preferred technical solution of the utility model, a rivet is movably installed at the bottom of the front side of the energy absorbing plate, and the other end of the rivet extends to the inside of the height adjustment plate.

[0012] As a preferred technical solution of the utility model, a seat basin fixing hole is provided at the bottom of the front side of the sliding block.

[0013] As a preferred technical solution of the utility model, the front side of the height adjustment plate is provided with circular holes located on both sides of the height adjustment pin hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model provides a sliding block, an energy absorbing plate, a height adjustment plate and a safety section. Since the safety section of the sliding block has a high static strength, it can withstand a specified limit load without starting the energy absorbing plate to deform and absorb energy. The weight of the energy absorbing device can be reduced by integrating the height adjustment plate and the energy absorbing plate. When subjected to a dynamic load, the safety section will break to absorb energy, and the safety section mainly bears the static load, which reduces the rigidity of the energy absorbing plate, thereby making the energy absorption process more stable, thereby improving the safety of the occupants during the energy absorption process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a side structural schematic diagram of the utility model.

[0018] In the figure: 1. Sliding block; 2. Energy absorption plate; 3. Height adjustment plate; 4. Safety section; 5. Height adjustment pin hole; 6. Countersunk nail; 7. Screw; 8. Rivet; 9. Chair basin fixing hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 to Figure 2 As shown, the utility model provides a helicopter seat energy absorption device, comprising:

[0021] Slider 1;

[0022] An energy absorbing mechanism, which is arranged on the back side of the sliding block 1;

[0023] Among them, the energy absorption mechanism includes an energy absorption plate 2, which is movably installed on the back of the sliding block 1, and a height adjustment plate 3 is movably installed on the back of the energy absorption plate 2. A safety section 4 is opened on the top of the front of the sliding block 1, and the safety section 4 can withstand static loads. After the sliding block 1 breaks at the safety section 4, the energy absorption plate 2 can absorb energy and deform.

[0024] The safety section 4 of the sliding block 1 has a high static strength and can withstand a specified limit load without starting; when subjected to a dynamic load, the safety section 4 will break and absorb energy.

[0025] in,

[0026] A height adjustment pin hole 5 is provided on the front side of the height adjustment plate 3 , a countersunk nail 6 is threadedly sleeved inside the height adjustment pin hole 5 and the front side of the countersunk nail 6 passes through the sliding block 1 , and the countersunk nail 6 can fix the sliding block 1 and the height adjustment plate 3 .

[0027] By adjusting the height of the height adjustment plate 3 and then screwing the countersunk nail 6 into the corresponding height adjustment pin hole 5, the height adjustment and fixing of the height adjustment plate 3 can be achieved.

[0028] A screw 7 is movably mounted at the bottom of the energy absorbing plate 2 , the top of the screw 7 penetrates the energy absorbing plate 2 and extends to the inside of the sliding block 1 , and the outer surface of the screw 7 is threadedly connected to the inner wall of the sliding block 1 .

[0029] By tightening the screw 7 inside the sliding block 1 , the sliding block 1 and the energy absorbing plate 2 can be fixed, so that the sliding block 1 can cause the energy absorbing plate 2 to deform and absorb energy when moving downward.

[0030] A rivet 8 is movably installed at the bottom of the front side of the energy absorbing plate 2 , and the other end of the rivet 8 extends to the inside of the height adjustment plate 3 .

[0031] Through the design of the rivet 8 , the energy absorbing plate 2 and the height adjustment plate 3 can be fixed, thereby ensuring the stability of the energy absorbing plate 2 .

[0032] A seat basin fixing hole 9 is provided at the bottom of the front side of the sliding block 1 .

[0033] The design of the seat basin fixing hole 9 makes it easy to fix the seat basin.

[0034] The front side of the height adjustment plate 3 is provided with circular holes located on both sides of the height adjustment pin hole 5 .

[0035] By providing a circular hole in the height adjustment plate 3 , the weight of the height adjustment plate 3 can be reduced, thereby reducing the overall weight of the device.

[0036] The working principle and use process of this utility model:

[0037] By removing the countersunk nails 6 and the rivets 8, the height of the height adjustment plate 3 can be adjusted. The energy absorbing plate 2 and the safety section 4 have high static strength and can withstand the specified limit load without starting. By installing and integrating the height adjustment plate 3 and the energy absorbing plate 2, the weight of the energy absorption device can be reduced; the safety section 4 mainly bears static loads, which reduces the rigidity of the energy absorbing plate 2. When subjected to dynamic loads, the safety section 4 at the countersunk nail 6 will break and absorb energy, thereby making the energy absorption process more stable, thereby improving the safety of the occupants during the energy absorption process. At the same time, after the safety section 4 breaks, the seat basin will drive the sliding block 1 to move downward, causing the energy absorbing plate 2 to deform and absorb energy.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A helicopter seat energy absorption device, characterized in that: Included are: Slider (1); An energy absorbing mechanism, which is arranged on the back side of the sliding block (1); The energy absorbing mechanism comprises an energy absorbing plate (2), the energy absorbing plate (2) is movably mounted on the back of the sliding block (1), a height adjustment plate (3) is movably mounted on the back of the energy absorbing plate (2), a safety section (4) is provided at the top of the front of the sliding block (1), the safety section (4) can withstand static loads, and the energy absorbing plate (2) can absorb energy and deform after the sliding block (1) breaks at the safety section (4).

2. The helicopter seat energy absorption device according to claim 1, characterized in that: The front side of the height adjustment plate (3) is provided with a height adjustment pin hole (5), a countersunk nail (6) is sleeved on the inner thread of the height adjustment pin hole (5), and the front side of the countersunk nail (6) passes through the sliding block (1), and the countersunk nail (6) can fix the sliding block (1) and the height adjustment plate (3).

3. The helicopter seat energy absorption device according to claim 1, characterized in that: A screw (7) is movably mounted at the bottom of the energy absorbing plate (2), the top of the screw (7) passes through the energy absorbing plate (2) and extends to the inside of the sliding block (1), and the outer surface of the screw (7) is threadedly connected to the inner wall of the sliding block (1).

4. The helicopter seat energy absorption device according to claim 1, characterized in that: A rivet (8) is movably mounted on the bottom of the front side of the energy absorbing plate (2), and the other end of the rivet (8) extends to the inside of the height adjustment plate (3).

5. The helicopter seat energy absorption device according to claim 1, characterized in that: A seat basin fixing hole (9) is provided at the bottom of the front side of the sliding block (1).

6. The helicopter seat energy absorption device according to claim 1, characterized in that: The front side of the height adjustment plate (3) is provided with circular holes located on both sides of the height adjustment pin hole (5).

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