Whole machine lifesaving parachute canopy

Abstract

The application discloses a whole machine lifesaving umbrella canopy, the main body of which is composed of a special-shaped umbrella canopy, and is provided with a canopy top hole structure, a circumferential seam structure and a wind blowing pocket structure; the special-shaped umbrella canopy is in a streamline shape with thick middle and thin two ends, and the single-side section of the umbrella canopy is in a wing-like shape after the umbrella canopy is inflated; the canopy top hole structure forms a top hole at the top of the umbrella canopy, and the top hole can be self-adaptively opened at high speed and can be self-adaptively reduced at low speed; the circumferential seam structure is distributed in the middle part of the umbrella canopy and forms an opening on the umbrella canopy, and the opening can be self-adaptively opened at high speed and can be self-adaptively closed at low speed; and the wind blowing pocket structure is distributed on the upper part of the umbrella canopy and forms a pocket opening on the umbrella canopy, and the pocket opening can be opened and inflated during the straightening stage of the umbrella canopy. The lifesaving umbrella canopy has a high aerodynamic drag coefficient, a load reduction function at high speed opening, a good straightening and opening procedure, and is suitable for whole machine lifesaving.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of whole machine life saving, and particularly relates to a whole machine life saving parachute canopy. BACKGROUND

[0002] In the field of whole machine life saving, since the weight of an airplane is greater than that of a conventional parachute, the parachute structure has the requirement of high aerodynamic drag coefficient and load reduction under the condition of large speed opening, and since the area of the parachute canopy is increased, the canopy has certain requirements for the straightening process, but at present, there is no whole machine life saving parachute available for reference in China. SUMMARY

[0003] The purpose of the present application is to provide a whole machine life saving parachute canopy, which has the functions of high aerodynamic drag coefficient, load reduction under the condition of large speed opening, and good straightening and opening procedure, and is suitable for whole machine life saving.

[0004] The technical scheme adopted by the present application is as follows:

[0005] A whole machine life saving parachute canopy, the main body of which is composed of a special-shaped canopy 5, which has a canopy top hole structure 2, a circumferential seam structure 3 and a blast pocket structure 4; the special-shaped canopy 5 adopts a streamlined shape with thick middle and thin ends, and the single-side cross section of the canopy 1 is similar to an airfoil after the canopy 1 is inflated; the canopy top hole structure 2 forms a top hole at the top of the canopy 1, and the top hole can be self-adaptively opened at high speed and self-adaptively reduced at low speed; the circumferential seam structure 3 is distributed in the middle of the canopy 1 and forms an opening on the canopy 1, and the opening can be self-adaptively opened at high speed and self-adaptively closed at low speed; and the blast pocket structure 4 is distributed on the upper part of the canopy 1 and forms a pocket opening on the canopy 1, and the pocket opening can be opened and inflated during the straightening stage of the canopy.

[0006] Further, the canopy top hole structure 2 is that the canopy 1 is rolled up to the outside of the top hole and sewn to form an annular mounting space, and an annular elastic cord 7 is placed in the annular mounting space.

[0007] Further, the elastic cord 7 is wrapped with a protective tape 6.

[0008] Further, the circumferential seam structure 3 is that the upper piece of the canopy 1 is overlapped on the lower piece of the canopy 1, the upper piece of the canopy 1 is on the outside and the lower piece of the canopy 1 is on the inside, an opening is formed between the upper piece of the canopy 1 and the lower piece of the canopy 1, the elastic cord 7 is wrapped on the bottom edge of the upper piece of the canopy 1, and a reinforcing tape 8 is arranged on the top edge of the lower piece of the canopy 1.

[0009] Further, the blast pocket structure 4 is that the upper piece of the canopy 1 is overlapped on the lower piece of the canopy 1, the upper piece of the canopy 1 is on the outside and the lower piece of the canopy 1 is on the inside, the top edge of the lower piece of the canopy 1 is sewn to the upper part of the upper piece of the canopy 1 to form a pocket opening, the elastic cord 7 is wrapped on the bottom edge of the upper piece of the canopy 1, and the reinforcing tape 8 is arranged on the top edge of the lower piece of the canopy 1.

[0010] Further, the elastic rope 7 is made of elastic cotton rope.

[0011] The present application has the following advantages:

[0012] The parachute canopy has high aerodynamic drag coefficient, load reduction function under high speed opening, good straightening opening procedure, and is suitable for whole machine lifesaving. The single side section of the parachute canopy 1 is in wing shape after inflation, which has additional lift effect besides the aerodynamic drag effect of the ordinary circular parachute, is beneficial to the opening of the parachute canopy 1, and can effectively increase the aerodynamic drag coefficient of the parachute canopy 1. The top hole of the parachute top hole structure 2 is self-adaptive to open under high speed, increases the air permeability of the parachute canopy, has load reduction effect, and is self-adaptive to close when the speed decreases, so that the aerodynamic deceleration ability of the parachute canopy is restored. The opening of the circumferential seam structure 3 is self-adaptive to open under high speed, increases the air permeability of the parachute canopy, has load reduction effect, and is self-adaptive to close when the speed decreases, so that the aerodynamic deceleration ability of the parachute canopy is restored. During the straightening stage of the parachute canopy, the air inlet pocket structure 4 is opened and inflated under the influence of airflow, generates upward aerodynamic force on the parachute canopy 1, assists the parachute canopy 1 to keep straightening, and optimizes the opening procedure. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a top view of the whole machine lifesaving parachute canopy after opening in the embodiment of the present application.

[0014] Figure 2 is a schematic view of the whole machine lifesaving parachute canopy after inflation in the embodiment of the present application, and the numbers without leading lines in the figure represent the serial numbers of the special-shaped parachute canopy panels.

[0015] Figure 3 is a longitudinal sectional view of Figure 2 .

[0016] Figure 4 is a schematic view of a single special-shaped parachute canopy panel in the embodiment of the present application.

[0017] Figure 5 is a schematic view of the parachute top hole structure in the embodiment of the present application.

[0018] Figure 6 is a schematic view of the circumferential seam structure in the embodiment of the present application.

[0019] Figure 7 is a schematic view of the air inlet pocket structure in the embodiment of the present application.

[0020] In the figure, 1 is a parachute canopy; 2 is a parachute top hole structure; 3 is a circumferential seam structure; 4 is an air inlet pocket structure; 5 is a special-shaped parachute canopy panel; 6 is a protective lining belt; 7 is an elastic rope; 8 is a reinforcing belt; and 9 is a parachute rope. DETAILED DESCRIPTION

[0021] The present application will be further described below in combination with the drawings and embodiments.

[0022] This embodiment discloses a whole-machine life-saving parachute canopy, such as Figures 1 to 7 As shown, its main body is composed of irregularly shaped umbrella canopy panels 5, and has an umbrella top hole structure 2, a circumferential seam structure 3, and a vent structure 4; as Figures 1 to 4 As shown, the irregularly shaped canopy 5 adopts a streamlined shape that is thicker in the middle and tapers back at both ends. After the canopy 1 is inflated, the cross-section of one side is similar to an airfoil; as shown... Figure 1 and Figure 5 As shown, the umbrella top hole structure 2 forms a top hole at the top of the umbrella canopy 1. This top hole can adaptively open at high speeds and adaptively shrink as the speed decreases; for example... Figure 1 and Figure 6 As shown, the circumferential seam structure 3 is distributed in the middle of the canopy 1, forming an opening on the canopy 1. This opening can adaptively open at high speeds and adaptively close when the speed decreases; as... Figure 1 and Figure 7 As shown, the air-blowing structure 4 is distributed on the upper part of the canopy 1, forming a pocket on the canopy 1. The pocket can be opened for inflation during the straightening stage of the canopy.

[0023] This life-saving parachute canopy features a high aerodynamic drag coefficient, load reduction function under high-speed opening, and a well-designed straightening and opening procedure, making it suitable for whole-aircraft rescue. After inflation, the canopy 1 has a single-sided airfoil-like cross-section, providing additional lift in addition to the aerodynamic drag effect of a regular circular parachute, which facilitates the opening of the canopy 1 and effectively increases its aerodynamic drag coefficient. The top hole structure 2 adaptively opens at high speeds, increasing the canopy's air permeability and reducing load; it then adaptively closes as the speed decreases, restoring the canopy's aerodynamic deceleration capability. The opening of the circumferential seam structure 3 adaptively opens at high speeds, increasing the canopy's air permeability and reducing load; it then adaptively closes as the speed decreases, restoring the canopy's aerodynamic deceleration capability. During the straightening phase, influenced by airflow, the opening of the vent structure 4 inflates, generating upward aerodynamic force on the canopy 1, assisting in maintaining its straightness and optimizing the opening procedure.

[0024] like Figure 1 and Figure 5 As shown, the umbrella top hole structure 2 is as follows: the umbrella canopy 1 is rolled outwards around the top hole and sewn to form a ring-shaped installation space, within which a ring-shaped elastic cord 7 is placed. At high speeds, the elastic cord 7 experiences significant force and is stretched; as the speed decreases, the elastic cord 7 naturally retracts. This allows for adjustment of the top hole size according to the speed. A protective lining 6 is wrapped around the elastic cord 7 to prevent it from breaking.

[0025] like Figure 1 and Figure 6As shown in the figure, the circumferential seam structure 3 is that the upper canopy 1 is overlapped on the lower canopy 1, the upper canopy 1 is on the outside, the lower canopy 1 is on the inside, an opening is formed between the upper canopy 1 and the lower canopy 1, the bottom edge of the upper canopy 1 is wrapped with the elastic cord 7, and the top edge of the lower canopy 1 is provided with the reinforcing band 8. In the case of high speed, the wind force overcomes the tension of the elastic cord 7 to lift the upper canopy 1 to open the opening, and after the speed becomes small, the elastic cord 7 naturally shrinks to reset the lower canopy 1, that is, to close the opening.

[0026] As shown in the figure, Figure 1 and Figure 7 the blowout pocket structure 4 is that the upper canopy 1 is overlapped on the lower canopy 1, the upper canopy 1 is on the outside, the lower canopy 1 is on the inside, the top edge of the lower canopy 1 is sewn with the upper part of the upper canopy 1 to form a pocket opening, the bottom edge of the upper canopy 1 is wrapped with the elastic cord 7, and the top edge of the lower canopy 1 is provided with the reinforcing band 8. In the stage of straightening the canopy, the pocket opening is directly opposite to the straightening direction, and is filled with air to open the inflation.

[0027] The elastic cord 7 is preferably made of elastic cotton cord.

[0028] The above-described embodiments are part of the embodiments of the present application, but not all the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

Claims

1. A complete-machine rescue parachute canopy, characterized in that: Its main body is composed of an irregularly shaped umbrella canopy (5), which has a top hole structure (2), a circumferential seam structure (3) and a blower structure (4). The irregularly shaped umbrella canopy (5) adopts a streamlined shape that is thick in the middle and shrinks back at both ends. After the umbrella canopy (1) is inflated, the single-sided cross section is similar to an airfoil. The top hole structure (2) forms a top hole at the top of the umbrella canopy (1). The top hole can open adaptively under high speed and shrink adaptively after the speed decreases. The circumferential seam structure (3) is distributed in the middle of the umbrella canopy (1) and forms an opening on the umbrella canopy (1). The opening can open adaptively under high speed and close adaptively after the speed decreases. The blower structure (4) is distributed in the upper part of the umbrella canopy (1) and forms a pocket on the umbrella canopy (1). The pocket can be opened for inflation during the straightening stage of the umbrella canopy.

2. The complete-machine rescue parachute canopy as described in claim 1, characterized in that: The umbrella top hole structure (2) is as follows: the umbrella canopy (1) is rolled outwards around the top hole and sewn to form an annular installation space, and an annular elastic cord (7) is placed in the annular installation space.

3. The complete-machine rescue parachute canopy as described in claim 2, characterized in that: The elastic cord (7) is wrapped with a protective liner (6).

4. The complete-machine rescue parachute canopy as described in claim 1, characterized in that: The circumferential seam structure (3) is as follows: the upper umbrella canopy (1) overlaps the lower umbrella canopy (1), the upper umbrella canopy (1) is on the outside and the lower umbrella canopy (1) is on the inside, an opening is formed between the upper umbrella canopy (1) and the lower umbrella canopy (1), the bottom edge of the upper umbrella canopy (1) is wrapped with an elastic cord (7), and the top edge of the lower umbrella canopy (1) is reinforced with a reinforcing band (8).

5. The complete-machine rescue parachute canopy as described in claim 1, characterized in that: The structure of the hood (4) is as follows: the upper umbrella (1) is attached to the lower umbrella (1), the upper umbrella (1) is on the outside and the lower umbrella (1) is on the inside. The top edge of the lower umbrella (1) is sewn to the upper part of the upper umbrella (1) to form a hood. The bottom edge of the upper umbrella (1) is wrapped with an elastic cord (7) and the top edge of the lower umbrella (1) is reinforced with a reinforcing band (8).

6. The complete-machine rescue parachute canopy as described in any one of claims 2 to 5, characterized in that: The elastic rope (7) is made of elastic cotton rope.

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