CN213974490U - Rotary parachute - Google Patents

Abstract

The utility model discloses a rotary parachute, which comprises a parachute-clothing surface, a reinforcing band, a parachute cord and an axial force-bearing rotary bearing, wherein the reinforcing band is fixed on the parachute-clothing surface, one end of the parachute cord is sewed on the reinforcing band, and the other end is connected on the axial force-bearing rotary bearing; the side surface of the canopy surface is provided with a plurality of air exhaust holes which are distributed asymmetrically, in the descending process of the canopy surface, the air exhausted from the air exhaust holes impacts the surrounding air to form a plurality of reverse thrusts, the plurality of reverse thrusts form a moment in the anticlockwise direction, so that the canopy surface does high-speed rotation motion in the descending process, and the deceleration descending rotation motion is realized under the action of air resistance to achieve stable descending. Adopt parachute, have that stability is strong, the parachute opening dynamic load is little, the coefficient of resistance is big, economy and security advantage such as high, not only can be used to the air-drop, also can regard as civilian high altitude club parachuting team to use the umbrella, safe practical, its suitability is strong, is fit for using widely.

Description

Rotary parachute

Technical Field

The utility model belongs to the technical field of pneumatic decelerator technique and specifically relates to a rotary-type parachute.

Background

The parachute is a deployable aerodynamic speed reducer which is inflated and deployed relative to the air movement by utilizing the principle of air resistance. Modern parachutes are aerial tools for safely landing a person or object from the air to the ground, are mainly made of flexible fabrics, and are equipment for combat and training of airborne soldiers, lifesaving and training of aerospace personnel, training, competition and performance of parachutists, air-dropping supplies and recovering aircrafts.

With the continuous development of high technology, the parachute as an aerial stable speed reducer has developed into an independent system. Today, the parachute as the pneumatic reduction gear of deployable formula, plays the important effect of protection personnel, goods and materials and speed reduction as aerospace technology vigorously develops, no matter to disaster area air-drop relief goods and materials or on the battlefield air-drop ammunition, tank etc. all need accurate input. However, the currently designed parachute still has limitations in the specific application process, such as poor stability under severe atmospheric conditions, too large randomness of landing to the ground position, deviation from the target landing place in the landing process, insufficient resistance generated in unit area, and the like. Particularly, in windy conditions, the parachute can spin to wind the parachute rope during use, so that the parachute cannot be completely unfolded during descending, normal work cannot be realized, and the parachute is very easy to deviate from a preset descending area if the influence of wind is large during descending.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to the problem that exists among the background art, it is strong to provide one kind, and the resistance that unit area produced is big, realizes the high-speed rotation at the in-process that falls down, reduces the influence that receives wind among the descending process, enables the parachute simultaneously and can not take place the winding phenomenon of umbrella rope at rotatory in-process to can realize stabilizing the decelerator of descending, specifically speaking is a rotary-type parachute.

For solving the technical problem, the utility model discloses the technical scheme who adopts does: a rotary parachute comprises a parachute-clothing surface, a reinforcing belt, a parachute cord and an axial force-bearing rotary bearing, wherein the reinforcing belt is fixed on the parachute-clothing surface, one end of the parachute cord is sewn on the reinforcing belt, and the other end of the parachute cord is connected to the axial force-bearing rotary bearing; the side surface of the canopy surface is provided with a plurality of air exhaust holes which are distributed asymmetrically, in the descending process of the canopy surface, the air exhausted from the air exhaust holes impacts the surrounding air to form a plurality of reverse thrusts, the plurality of reverse thrusts form a moment in the anticlockwise direction, so that the canopy surface does high-speed rotary motion in the descending process, and the deceleration descending rotary motion is realized under the action of air resistance to achieve stable descending.

Further, a rotary-type parachute, wherein the canopy face sets up to central symmetry but non-axial symmetry to have the spatial structure of angle of attack face, can produce lift through setting up to the canopy face that has the angle of attack face in the decline in-process.

Further, a rotary-type parachute, wherein the side of canopy face is provided with four asymmetric distribution's exhaust hole, and four asymmetric distribution's exhaust hole sets up to the nevertheless non-axisymmetric structure of central symmetry in the canopy face decline in-process, four exhaust hole combustion gas impact surrounding air, form four reverse thrust, and the direction of four reverse thrust is central symmetry but non-axisymmetric to form counter-clockwise's moment, make the canopy face does high-speed rotary motion at the decline in-process, and under the effect of air resistance, realize the decline rotary motion that slows down, thereby reach stable descending.

Furthermore, the utility model relates to a rotary parachute, wherein the parachute line comprises four central parachute lines, eight primary parachute lines and eight secondary parachute lines, wherein one end of the primary parachute line and one end of the secondary parachute line are sewn on the reinforcing belt, and the other end of the primary parachute line and the other end of the secondary parachute line are connected to the axial force bearing; one ends of the four central umbrella ropes are respectively sewn on the reinforcing belts, and the other ends of the four central umbrella ropes are respectively connected with four primary umbrella ropes of the eight primary umbrella ropes in a staggered state at intervals.

Adopt a rotary-type parachute, because canopy face sets up to central symmetry but non-axial symmetry to have the spatial structure of angle of attack face, and the side of canopy face is provided with a plurality of asymmetric distribution's exhaust hole canopy face descends the in-process, not only accessible air resistance reaches the purpose of speed reduction, still can utilize its angle of attack face also to produce certain lift, makes the resistance that parachute unit area produced is big than the resistance that ordinary parachute produced, reaches stable descending through high-speed rotation. Adopt parachute, have that stability is strong, the parachute opening dynamic load is little, the coefficient of resistance is big, economy and security advantage such as high, not only can be used to the air-drop, also can regard as civilian high altitude club parachuting team to use the umbrella, safe practical, its suitability is strong, is fit for using widely.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;

fig. 3 is a front view of the present invention.

Fig. 4 is a top view of the present invention;

fig. 5 is a bottom view of the present invention.

Shown in the figure: 1-umbrella surface, 2-reinforcing belt, 3-umbrella rope, 31-central umbrella rope, 32-primary umbrella rope, 33-secondary umbrella rope, 4-axial stress rotating bearing and 5-exhaust hole.

Detailed Description

As shown in fig. 1 to 5, the rotary parachute of the present invention comprises a canopy surface 1, a reinforcing band 2, a parachute cord 3 and an axial force-bearing rotary bearing 4, wherein the reinforcing band 2 is fixed on the canopy surface 1, one end of the parachute cord 3 is sewn on the reinforcing band 2, and the other end is connected to the axial force-bearing rotary bearing 4; the side surface of the umbrella surface 1 is provided with a plurality of exhaust holes 5 which are distributed asymmetrically, in the descending process of the umbrella surface 1, the gas exhausted from the exhaust holes 5 impacts the surrounding air to form a plurality of reverse thrusts, the plurality of reverse thrusts form a moment in the anticlockwise direction, so that the umbrella surface 1 rotates at a high speed in the descending process, and the deceleration descending rotary motion is realized under the action of air resistance to achieve stable descending.

Further, a rotary-type parachute, wherein canopy face 1 sets up to central symmetry but non-axial symmetry to have the spatial structure of angle of attack face, can produce lift through setting up to canopy face 1 that has the angle of attack face in the descending process.

Further, a rotary-type parachute, wherein the side of canopy face 1 is provided with four asymmetric distribution's exhaust hole 5, four asymmetric distribution's exhaust hole 5 sets up to central symmetry but non-axisymmetric structure the 1 decline in-process of canopy face, the air around the 5 gas impact in four exhaust holes, forms four reverse thrust, and the direction of four reverse thrust is central symmetry but non-axisymmetric to form counter-clockwise's moment, make canopy face 1 does high-speed rotary motion at the in-process that descends to under the effect of air resistance, realize the speed reduction and descend rotary motion, thereby reach stable landing.

Further, the utility model discloses a rotary parachute, wherein the parachute line 3 includes four central parachute lines 31, eight primary parachute lines 32 and eight secondary parachute lines 33, wherein one end of the primary parachute line 32 and the secondary parachute line 33 is sewed on the reinforcing belt 2, and the other end is connected on the axial force-bearing rotary bearing 4; one ends of the four central umbrella ropes 31 are respectively sewn on the reinforcing belt 2, and the other ends of the four central umbrella ropes are respectively connected with four primary umbrella ropes 32 of the eight primary umbrella ropes 32 at intervals in a staggered state.

Adopt a rotary-type parachute, because the canopy face 1 sets up to the nevertheless non-axial symmetry of central symmetry to have the spatial structure of angle of attack face, and the side of canopy face 1 is provided with four asymmetric distribution's exhaust hole 5, and four exhaust holes 5 set up to the nevertheless non-axial symmetry of central symmetry structure in the 1 decline in-process of canopy face, four exhaust holes 5 combustion gas impact surrounding air, form four reverse thrust, and the direction of four reverse thrust is central symmetry but non-axial symmetry, thereby forms counter-clockwise's moment, makes high-speed rotary motion is made at the in-process that descends to canopy face 1, finally reaches the strong mesh of stability. And the speed-reducing descending rotary motion is realized under the action of air resistance and lifting force, so that stable descending is realized. In addition, the parachute has a spatial structure of an attack angle surface, so that the parachute can be decelerated by air resistance, and the attack angle surface can generate certain lift force, so that the resistance generated by the parachute in unit area is larger than that generated by a common parachute. Finally, the effect of speed reduction is achieved through air resistance and lift force, and the effect of stable landing is achieved through high-speed rotation.

To sum up, adopt the parachute, have that stability is strong, the parachute opening dynamic load is little, the coefficient of resistance is big, economy and security advantage such as high, not only can be used to the air-drop, also can regard as civilian high altitude club to jump the parachute team and use the umbrella, safe practical, its suitability is strong, is fit for using widely.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and changes, and any modifications, equivalent replacements, improvements, etc. made by using the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A rotary parachute, characterized in that: the umbrella comprises an umbrella surface (1), a reinforcing belt (2), an umbrella rope (3) and an axial stressed rotating bearing (4), wherein the reinforcing belt (2) is fixed on the umbrella surface (1), one end of the umbrella rope (3) is sewn on the reinforcing belt (2), and the other end of the umbrella rope is connected to the axial stressed rotating bearing (4); a plurality of exhaust holes (5) which are distributed asymmetrically are arranged on the side surface of the umbrella cover surface (1).

2. A rotary-type parachute according to claim 1, wherein: the umbrella cover face (1) is arranged to be centrosymmetric but not axisymmetric and has a spatial structure of an angle-of-attack face, and the umbrella cover face (1) with the angle-of-attack face can generate lift force in the descending process.

3. A rotary-type parachute according to claim 1, wherein: four exhaust holes (5) which are distributed asymmetrically are arranged on the side surface of the umbrella cover surface (1), and the four exhaust holes (5) which are distributed asymmetrically are arranged into a centrosymmetric but non-axisymmetric structure.

4. A rotary-type parachute according to claim 1, wherein: the umbrella rope (3) comprises four central umbrella ropes (31), eight primary umbrella ropes (32) and eight secondary umbrella ropes (33), wherein one ends of the primary umbrella ropes (32) and the secondary umbrella ropes (33) are sewn on the reinforcing belt (2), and the other ends of the primary umbrella ropes and the secondary umbrella ropes are connected to the axial stressed rotating bearing (4); one ends of the four central umbrella ropes (31) are respectively sewn on the reinforcing belt (2), and the other ends of the four central umbrella ropes are respectively connected with four primary umbrella ropes (32) in the eight primary umbrella ropes (32) in a staggered state at intervals.

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