Secondary throwing control mechanism of emergency buoy
By setting up traction ropes on the left and right sides of the skin of the emergency float, the maximum throwing distance of the skin is limited, and the risk of the skin may colliding with the helicopter rotor is solved, and the normal deployment and use of the emergency float is achieved.
Patent Information
- Application Number
- CN202411631268.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-02-25
AI Technical Summary
When the emergency float is unfolded, the skin may be thrown upward, which is at risk of collision with the helicopter rotor.
A secondary drop control mechanism for emergency buoys is designed. By setting traction ropes on the left and right sides of the skin, the maximum throwing distance of the skin is limited so that it does not affect the extension of the emergency buoys, and avoids skin and helicopters. Rotor interference.
It effectively avoids interference between skin and helicopter rotor, ensures the normal deployment and use of emergency floats, and simplifies the installation process.
Smart Images
Figure CN119503133A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to an emergency buoy, and in particular to a secondary releasing control mechanism of an emergency buoy. Background Art
[0002] As the frequency and range of helicopter missions in sea and water areas increase, the probability of helicopters needing emergency landings on water is also increasing. In order to buy time for crew members to escape and the opportunity to recover the entire helicopter, an emergency flotation device will be installed on the helicopter. In the emergency flotation device, the emergency float is folded in the float compartment of the helicopter and is sealed by the packaging assembly through the fixed rope. The skin is sealed at the opening of the float compartment and fixed by the fixed force clamp. After receiving the ignition signal, the emergency float is quickly inflated and deployed. The expansion force generated by the emergency float will first break the fixed force rope of the packaging assembly, and then squeeze the skin outward, so that the skin breaks the fixed force clamp and is thrown out. The direction of the skin is determined by the expansion force generated by the emergency float and the clamping force provided by the fixed force clamp. In general, it will be thrown downward, but under the action of airflow, the skin may be thrown upward, and there is a risk of collision with the helicopter rotor. Summary of the invention
[0003] The purpose of the present invention is to provide a secondary release control mechanism for an emergency float, which does not affect the extension of the emergency float, avoids interference between the skin and the helicopter rotor, does not affect the original packaging method, and is very easy to install.
[0004] The technical solution adopted by the present invention is: A secondary ejection control mechanism for an emergency buoy comprises a packing assembly for enclosing an emergency buoy in a buoy cabin through a fixed force rope, a skin installed at an opening of the buoy cabin through a fixed force clamping piece, and a traction rope; the packing assembly comprises an upper packing blade and a lower packing blade, holes are provided on both sides of the lower end of the upper packing blade and on both sides of the upper end of the lower packing blade, two traction ropes are distributed on the left and right sides of the skin, two ends of the left traction rope are respectively connected to the holes on the left side of the lower end of the upper packing blade and the left side of the upper end of the lower packing blade, and the middle is connected to the left side of the inner surface of the skin, two ends of the right traction rope are respectively connected to the holes on the right side of the lower end of the upper packing blade and the right side of the upper end of the lower packing blade, and the middle is connected to the right side of the inner surface of the skin, the traction ropes on both sides are used to limit the maximum ejection distance of the skin, and the maximum ejection distance of the skin is greater than the extension length of the emergency buoy and less than the distance from the helicopter rotor.
[0005] Preferably, the left and right sides of the inner surface of the skin are provided with fixing loops and adhesive cloth; the middle of the left traction rope passes through the left fixing loop and is fixed by adhesive cloth pressure cover near the two ends of the entry and exit fixing loop; the middle of the right traction rope passes through the right fixing loop and is fixed by adhesive cloth pressure cover near the two ends of the entry and exit fixing loop.
[0006] Preferably, the middle of the left traction rope is tightened in sequence and passes through two fixing loops, the two fixing loops are arranged side by side up and down and the passing direction is the length direction of the skin, and four adhesive cloths are fixed on the upper cover of the left traction rope, two of which are located on the vertical section between the two fixing loops, and the other two adhesive cloths are respectively side by side with the two fixing loops; the middle of the right traction rope is tightened in sequence and passes through two fixing loops, the two fixing loops are arranged side by side up and down and the passing direction is the length direction of the skin, and four adhesive cloths are fixed on the upper cover of the right traction rope, two of which are located on the vertical section between the two fixing loops, and the other two adhesive cloths are respectively side by side with the two fixing loops.
[0007] Preferably, the fixing loops are fixed to the skin by means of screws, nuts and washers.
[0008] Preferably, the fixing loop is sewn from brocade ribbon.
[0009] The beneficial effects of the present invention are: This mechanism adds a towing rope on the basis of the original structure, and connects the packaging blades, towing rope and skin together. The towing rope is used to limit the maximum throwing distance of the skin. By controlling the length of the towing rope, it does not affect the extension of the emergency float and avoids interference between the skin and the helicopter rotor. Towing ropes are used on the left and right sides to avoid the situation where the skin is restricted on one side and causes it to hit the fuselage inward. Both ends of the towing rope are installed on the packaging blades, which will not affect the float cabin, will not affect the original packaging method, and is also very easy to install. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the secondary release control mechanism of the emergency buoy.
[0011] Figure 2 This is a schematic diagram of the connection between the middle of the towing rope and the skin.
[0012] In the figure: 1-skin; 2-traction rope; 3-upper package blade; 4-lower package blade; 5-buoy cabin; 6-fixing loop; 7-adhesive cloth; 8-screw; 9-nut; 10-gasket. DETAILED DESCRIPTION
[0013] The present application is further described below in conjunction with the accompanying drawings and embodiments.
[0014] The present application discloses a secondary release control mechanism for an emergency buoy, the direct purpose of which is to prevent the skin 1 from interfering with the helicopter rotor after being released, and the mechanism comprises a packing assembly, a skin 1 and a traction rope 2, wherein: the packing assembly and the skin 1 are existing parts, the packing assembly packs the emergency buoy in the buoy cabin 5 through a fixed force rope, the packing assembly comprises an upper packing blade 3 and a lower packing blade 4, and the skin 1 is installed at the opening of the buoy cabin 5 through a fixed force pressing member cover; Figure 1 and Figure 2 As shown, the traction rope 2 is a newly added component, and holes are added on both sides of the lower end of the upper encapsulation blade 3 and on both sides of the upper end of the lower encapsulation blade 4. The two traction ropes 2 are distributed on the left and right sides of the skin 1. The two ends of the left traction rope 2 are respectively connected to the holes on the left side of the lower end of the upper encapsulation blade 3 and the left side of the upper end of the lower encapsulation blade 4, and the middle is connected to the left side of the inner surface of the skin 1. The two ends of the right traction rope 2 are respectively connected to the holes on the right side of the lower end of the upper encapsulation blade 3 and the right side of the upper end of the lower encapsulation blade 4, and the middle is connected to the right side of the inner surface of the skin 1. The traction ropes 2 on both sides are used to limit the maximum throwing distance of the skin 1. The maximum throwing distance of the skin 1 is greater than the extension length of the emergency float and less than the distance from the helicopter rotor. The mechanism adds a towing rope 2 on the basis of the original structure, and connects the packaging blades, the towing rope 2 and the skin 1 together, and uses the towing rope 2 to limit the maximum throwing distance of the skin 1. By controlling the length of the towing rope 2, it neither affects the extension of the emergency float nor interferes with the skin 1 and the helicopter rotor. In addition, the towing ropes 2 on the left and right sides are used to avoid the skin 1 being restricted on one side and causing it to hit the fuselage inward. In addition, both ends of the towing rope 2 are installed on the packaging blades, which will not affect the float cabin 5 and the original packaging method, and the installation is also very simple.
[0015] Regarding the connection method between the traction rope 2 and the skin 1, in this embodiment, preferably: Figure 2 As shown, the left and right sides of the inner surface of the skin 1 are provided with fixing loops 6 and adhesive cloth 7; the left traction rope 2 passes through the left fixing loop 6 in the middle and is fixed by adhesive cloth 7 near the two ends of the inlet and outlet fixing loop 6; the right traction rope 2 passes through the right fixing loop 6 in the middle and is fixed by adhesive cloth 7 near the two ends of the inlet and outlet fixing loop 6. The traction rope 2 is fixed to the skin 1 in this connection mode, which can avoid damaging the skin 1 to the greatest extent.
[0016] Further: Figure 2 As shown, the middle of the left traction rope 2 is sequentially tightened and passed through two fixing loops 6, the two fixing loops 6 are arranged side by side up and down and the passing direction is the length direction of the skin 1, and four adhesive cloths 7 are fixed to the left traction rope 2, two of which are located in the vertical section between the two fixing loops 6, and the other two adhesive cloths 7 are respectively side by side with the two fixing loops 6; the middle of the right traction rope 2 is sequentially tightened and passed through two fixing loops 6, the two fixing loops 6 are arranged side by side up and down and the passing direction is the length direction of the skin 1, and four adhesive cloths 7 are fixed to the right traction rope 2, two of which are located in the vertical section between the two fixing loops 6, and the other two adhesive cloths 7 are respectively side by side with the two fixing loops 6. The fixing loops 6 and the adhesive cloths 7 adopt this distribution design, which can ensure that the traction rope 2 does not fall out even if the impact force is huge.
[0017] Further: Figure 2As shown, the fixing loop 6 can be fixed to the skin 1 by means of screws 8, nuts 9 and washers 10, and the fixing loop 6 can be sewn with brocade ribbon.
[0018] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.
Claims
1. A secondary release control mechanism for an emergency buoy, characterized in that: It includes a packaging component that packages the emergency buoy in the buoy cabin through a fixed rope, a skin installed at the opening of the buoy cabin through a fixed force clamping piece, and a traction rope; the packaging component includes an upper packaging blade and a lower packaging blade, both sides of the lower end of the upper packaging blade and both sides of the upper end of the lower packaging blade are provided with holes, two traction ropes are distributed on the left and right sides of the skin, two ends of the left traction rope are respectively connected to the holes on the left side of the lower end of the upper packaging blade and the left side of the upper end of the lower packaging blade, and the middle is connected to the left side of the inner side of the skin, two ends of the right traction rope are respectively connected to the holes on the right side of the lower end of the upper packaging blade and the right side of the upper end of the lower packaging blade, and the middle is connected to the right side of the inner side of the skin, the traction ropes on both sides are used to limit the maximum throwing distance of the skin, and the maximum throwing distance of the skin is greater than the stretching length of the emergency buoy and less than the distance from the helicopter rotor.
2. The emergency buoy secondary release control mechanism according to claim 1, characterized in that: There are fixing loops and adhesive cloth on both sides of the inner side of the skin; the middle of the left traction rope passes through the fixing loop on the left and is fixed by adhesive cloth pressure covers near the two ends of the entry and exit fixing loops; the middle of the right traction rope passes through the fixing loop on the right and is fixed by adhesive cloth pressure covers near the two ends of the entry and exit fixing loops.
3. The emergency buoy secondary release control mechanism according to claim 2, characterized in that: The middle of the left traction rope is sequentially tightened and passed through two fixing loops, the two fixing loops are arranged side by side up and down, and the passing direction is the length direction of the skin, and four adhesive cloths are fixed on the upper cover of the left traction rope, two of which are located on the vertical section between the two fixing loops, and the other two adhesive cloths are respectively side by side with the two fixing loops; the middle of the right traction rope is sequentially tightened and passed through two fixing loops, the two fixing loops are arranged side by side up and down, and the passing direction is the length direction of the skin, and four adhesive cloths are fixed on the upper cover of the right traction rope, two of which are located on the vertical section between the two fixing loops, and the other two adhesive cloths are respectively side by side with the two fixing loops.
4. The emergency buoy secondary release control mechanism according to claim 2 or 3, characterized in that: The fixing loops are fixed to the skin by means of screws, nuts and washers.
5. The emergency buoy secondary release control mechanism according to claim 2 or 3, characterized in that: The fastening tabs are sewn with brocade ribbon.