CN115108026A - A foldable rotor descent device for high-rise escape - Google Patents

Abstract

The invention provides a foldable rotor descent control device for high-rise escape, which comprises a fixing belt, a rigid shaft, a connector, a telescopic rod and a wing surface. The fixing belt fixes the person and the device; the rigid shaft is connected with the telescopic rod through a connector and can rotate 360 degrees, so that motion isolation is realized; the telescopic rod can be stretched manually, pneumatically or by a spring to unfold the rotor wing surface; the airfoil canvas can be connected with the telescopic rod in a sliding way by a sleeve or an iron ring. The airfoil surface is similar to a maple seed in shape when unfolded, and the slow descent principle is similar to the airfoil surface, namely the airfoil surface automatically rotates in the descent process, generates vortex at the front edge of the airfoil surface, generates lift force, and slows down the descent speed of the airfoil surface to achieve the slow descent effect. The invention has reasonable structure and simple operation, is convenient to realize slow descent, can ensure the use safety and stability, and can be widely applied to the fields of high-rise escape, aerial material delivery and the like.

Description

A foldable rotor descent device for high-rise escape

technical field

The invention relates to the technical field of high-rise escape appliances, in particular to a foldable rotor slow-down device for high-rise escape.

Background technique

With the rapid development of our country, the penetration rate of high-rise buildings has greatly increased. However, there has been no effective solution to the escape problem after a dangerous situation occurs in a high-rise building, and traditional parachutes and escape backpacks cannot meet the needs. Therefore, a simple and foldable rotor slow-down device was invented, which can be widely used in the fields of high-rise escape and the like.

Maple seeds found in nature are another airborne deceleration solution. On the sides of the oval seeds, there is a light and thin airfoil. When the maple seeds fall from the tree, the air pushes the airfoil, causing the entire maple seed to rotate, generating eddy currents on its leading edge to generate lift, slowing the falling speed of the maple seeds, allowing them to float farther. place. The principle of the invention comes from the maple seeds, and has the characteristics of simple structure, effective and reliable.

SUMMARY OF THE INVENTION

In order to solve the problems of the prior art, the present invention provides a foldable rotor slow-down device for high-rise escape, which has simple structure, space saving, convenient operation, stable landing, easy portability, and does not require excessive maintenance.

The present invention includes a rigid shaft and a telescopic airfoil connected by a coupling, and the rigid shaft is connected with a piggyback device.

The coupling includes a base and a rotating shaft, wherein the base is fixed on the rigid shaft, the bottom of the rotating shaft is connected with the base through a bearing, the rotating shaft rotates around its central axis on the base, and the upper part of the rotating shaft is inclined with an included angle to the horizontal plane. The inclined section is connected with the telescopic airfoil.

The telescopic airfoil includes a telescopic rod, a pull wire, a snap ring and an airfoil canvas. The bottom end of the telescopic rod is fixedly connected with the top end of the inclined section of the rotating shaft. The telescopic rod and the pull wire are connected end-to-end through the snap ring, and the area enclosed by the telescopic rod and the pull wire An airfoil canvas is provided, and when the telescopic rod is extended, the pulling wire pulls the top end of the telescopic rod to bend the telescopic rod, and at this time, the airfoil canvas unfolds to form a maple-like seed shape.

In a further improvement, the carrying device includes a fixing strap, a loop buckle and a strap, the fixing strap is fastened on the loop buckle, and the loop buckle is connected with the rigid shaft through the strap.

In a further improvement, the inclined section of the rotating shaft forms an included angle of 19° with the horizontal position, so that the load acts as a counterweight and reduces the airfoil area.

In a further improvement, the bearing where the bottom of the rotating shaft is connected to the base is fixed by a cover.

In a further improvement, the telescopic rod can be extended manually, pneumatically or by spring.

When escaping from a high-rise building, tie the fixing belt to the body, open the telescopic rod, and the wing surface naturally unfolds into the shape of a maple seed. At this time, escaping from the window achieves a slow-down effect, which can achieve a smooth and safe escape.

The beneficial effects of the present invention are: the airfoil of the present invention resembles a maple seed when unfolded, and the principle of slow descent is similar to that, that is, it automatically rotates during the descending process, generates eddy currents at its leading edge, and generates lift to slow down its descending speed to achieve a slow descent effect. The invention has the advantages of simple structure, space saving, convenient operation, stable landing, easy portability, and no need for excessive maintenance.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of a device in a specific embodiment of the present invention;

Figure 2 shows an enlarged cross-sectional view of a connector in a specific embodiment of the invention;

FIG. 3 is an enlarged schematic view of a telescopic rod and an airfoil in a specific embodiment of the invention.

In the figure, fixed belt 1, loop buckle 2, strap 3, rigid shaft 4, coupling 5, telescopic airfoil 6, base 7, rotating shaft 8, cover 9, telescopic rod 10, pull wire 11, snap ring 12 and airfoil Canvas 13.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1 , the foldable rotor descending device includes a fixed belt 1 , a loop buckle 2 , a back belt 3 , a rigid shaft 4 , a coupling 5 , and a telescopic airfoil 6 . The fixing belt 1 is tied on the buckle 2 and is connected with the rigid shaft 4 through the back strap 3, and the rigid shaft 4 is connected with the telescopic rod and the airfoil 6 through the coupling 5 to realize motion isolation. The telescopic rod can be extended manually, pneumatically or by spring. When escaping from a high-rise building, tie the fixing belt to the body, open the telescopic rod, and the wing surface naturally unfolds into the shape of a maple seed. At this time, escaping from the window achieves a slow-down effect, which can achieve a smooth and safe escape.

As shown in FIG. 2 , the coupling 5 includes a base 7 , a rotating shaft 8 , and a cover 9 . The base 7 is fixed on the rigid shaft 4, the rotating shaft 8 connects the telescopic rod and the airfoil, and forms an included angle of 19° with the horizontal position, so that the load can play the role of counterweight, reducing the airfoil area, and can be rotated 360°. Prevent the base from separating from the rotating shaft.

As shown in FIG. 3 , the telescopic airfoil 6 includes a telescopic rod 10 , a pulling wire 11 , a snap ring 12 and an airfoil canvas 13 . The telescopic rod 10 and the pull wire 11 are connected end to end through the snap ring 12. When the airfoil is unfolded, the telescopic rod naturally bends, and the airfoil canvas 13 is in the shape of a maple seed and is slidably connected to the telescopic rod through a sleeve or an iron ring.

In the specific implementation, the optimal airfoil area and the estimated range of the overall weight are as follows, which are obtained by proportionally magnifying the existing artificial maple seed data.

Load (kg) Airfoil area (m2) Overall weight (kg)

20 (supplies/children) 10 22

40 (some adult women) 20 44

60 (adult) 30 66

80 (some adult males) 40 88

Each embodiment in this specification is described in a progressive manner, and the same and similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiments, the above descriptions are only preferred implementations of the present invention. Since they are basically similar to the method embodiments, the description is relatively simple. For relevant details, please refer to the partial descriptions of the method embodiments. The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. In other words, any easily conceivable changes or substitutions should be included within the protection scope of the present invention without departing from the principles of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (5)

1. a foldable rotary wing slow-down device for high-rise escape, characterized in that: comprise a rigid shaft and a telescopic airfoil connected by a coupler, and the rigid shaft is connected with a carrying device; The coupling includes a base and a rotating shaft, wherein the base is fixed on the rigid shaft, the bottom of the rotating shaft is connected with the base through a bearing, the rotating shaft rotates around its central axis on the base, and the upper part of the rotating shaft is inclined with an included angle to the horizontal plane. The inclined section is connected with the telescopic airfoil; The telescopic airfoil includes a telescopic rod, a pull wire, a snap ring and an airfoil canvas. The bottom end of the telescopic rod is fixedly connected with the top end of the inclined section of the rotating shaft. The telescopic rod and the pull wire are connected end-to-end through the snap ring, and the area enclosed by the telescopic rod and the pull wire An airfoil canvas is provided, and when the telescopic rod is extended, the pulling wire pulls the top end of the telescopic rod to bend the telescopic rod, and at this time, the airfoil canvas unfolds to form a maple-like seed shape. 2 . The foldable rotor slow-down device for high-rise building escape according to claim 1 , wherein the carrying device comprises a fixed belt, a loop buckle and a back strap, and the fixed belt is fastened on the loop buckle, and the loop buckle passes through the loop buckle. 3 . The straps are attached to the rigid shaft. 3 . The foldable rotor descending device for high-rise building escape according to claim 1 , wherein the inclined section of the rotating shaft forms an included angle of 19° with the horizontal position. 4 . 4 . The foldable rotor slow-down device for high-rise building escape according to claim 1 , wherein the bearing where the bottom of the rotating shaft is connected to the base is fixed by a cover. 5 . 5 . The foldable rotor slow-down device for high-rise building escape according to claim 1 , wherein the telescopic rod is manually, pneumatically, or spring-driven. 6 .

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