CN113697110A - Air-drop device and method with controllable opening time of buffer mechanism - Google Patents

Abstract

An airdrop device with a controllable opening time of a buffer mechanism comprises a speed reducing mechanism, a material containing mechanism and the buffer mechanism which are sequentially connected from top to bottom, and is characterized in that the buffer mechanism comprises an air bag, an air hole is formed in the air bag, the air bag is blocked by a blocking mechanism after being folded when not put in, the speed reducing mechanism is connected with the blocking mechanism through an unlocking mechanism, and resistance generated by the speed reducing mechanism in the falling process automatically forces the unlocking mechanism to open the blocking mechanism so as to open the buffer mechanism; a delay mechanism for delaying the unlocking mechanism to work is arranged between the speed reducing mechanism and the material containing mechanism, and the working process of the delay mechanism is related to the resistance of the speed reducing mechanism in the falling process; the invention further comprises an air-drop method with controllable opening time of the buffer mechanism. The invention can realize the opening time of the air bag in the buffer mechanism, and the air bag is opened when the air-dropped part enters a stable falling stage, thereby ensuring that the landing posture of the air-dropped part is better.

Description

Air-drop device and method with controllable opening time of buffer mechanism

Technical Field

The invention relates to the field of airborne air-drop of light goods and materials, in particular to an air-drop device and method with controllable opening time of a buffer mechanism.

Background

When people who are trapped in emergency rescue, search and rescue and battlefield supply are carried out, due to the fact that the people cannot be close to the ground, materials need to be delivered from the air, under the condition, packaged edible materials such as mineral water, edible oil and dry food or medical materials such as first-aid kits, blood bags and instruments need to be directly purchased in the emergency market, most of the materials belong to small light materials, and low-altitude air delivery can be achieved. When a large amount of light materials are airdropped, an umbrella-free airdrop system is usually adopted for airdrop from the height of 50-200m, and the common umbrella-free airdrop systems are divided into two types: one is a system without an aerial reduction and the other is a system with an aerial reduction. The system without the aerial speed reducer mainly absorbs the energy of landing impact by means of structural parts of the airdrop container and attached buffer materials, and the system has the problems of high descending speed of materials, large landing impact, easiness in damage of the materials and limited application range. The system with the aerial speed reducer is provided with the small-sized air cover, the speed reducer such as the speed reducer and the like on the airdrop container, the speed reducer can reduce the speed in the descending process, the landing impact is reduced by combining the attached buffer device, the landing speed of the system is low, the damage to materials and the damage to ground personnel are reduced, but the system is complex in structure, large in integral volume, inconvenient to store and transport, troublesome to package, transport and launch when a large amount of the system needs to be launched, and high in cost. Most of the existing buffer devices are buffer mechanisms with air bags, and because the air-drop piece can swing at the initial stage of taking out of a cabin, the resistance of the air bag after the air bag is opened can aggravate the swing of the air-drop piece and influence the landing posture.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an airdrop device and method with controllable opening time of a buffer mechanism, which can realize the opening time of an air bag in the buffer mechanism, and can ensure that the landing posture of an airdrop piece is better when the air bag is opened when the airdrop piece enters a stable falling stage.

The technical scheme of the invention is as follows: an airdrop device with a controllable opening time of a buffer mechanism comprises a speed reducing mechanism, a material containing mechanism and the buffer mechanism which are sequentially connected from top to bottom, wherein the buffer mechanism comprises an air bag, an air hole is formed in the air bag, the air bag is blocked by a blocking mechanism after being folded when not being thrown, the speed reducing mechanism is connected with the blocking mechanism through an unlocking mechanism, and resistance generated by the speed reducing mechanism in the falling process automatically forces the unlocking mechanism to open the blocking mechanism so as to open the buffer mechanism; and a delay mechanism for delaying the unlocking mechanism to work is arranged between the speed reducing mechanism and the material containing mechanism, and the working process of the delay mechanism is related to the resistance of the speed reducing mechanism in the falling process.

The further technical scheme of the invention is as follows: the deceleration mechanism comprises a deceleration umbrella and an umbrella rope below the deceleration umbrella, the delay mechanism comprises a cotton rope with selectable breaking strength, the cotton rope is connected with the bottom end of the deceleration umbrella and the upper end of the material containing mechanism, and when the cotton rope is in a straightening state, the umbrella rope is in a non-straightening state; when the cotton rope is broken by the falling resistance from the speed reducing mechanism, the umbrella rope is straightened, the unlocking mechanism starts to work, the locking mechanism is opened, and the air bag starts to be inflated.

Furthermore, the unlocking mechanism comprises a pull rope, one end of the pull rope is connected with the lower end of the umbrella rope, and the other end of the pull rope is connected with a lock head part which plays a role in opening in the locking mechanism.

Further, the locking mechanism comprises a locking ring and a locking pin inserted into the locking ring, or the locking mechanism comprises a slipknot formed by the locking ring and a thread rope, or the locking mechanism is one of the lock catch structures which can be opened by a certain pulling force in the prior art.

Further, buffer gear still includes folding skeleton, be a style of calligraphy structure when the skeleton is in fold condition, be "U" type structure of inversion when being in the state of opening, the both sides of "U" type structure are connected with goods and materials splendid attire mechanism through the elasticity rope respectively, and when not throwing in, the elasticity rope is in tensile state.

Further, the skeleton is disposed inside the airbag.

Further, material splendid attire mechanism and buffer gear formula structure as an organic whole, a planar structure is shared with buffer gear to material splendid attire mechanism, and buffer gear is folding receive and release in planar structure department that shares when not using.

Further, the skeleton is disposed outside the airbag.

Further, goods and materials splendid attire mechanism and buffer gear are split type structure, and the lower surface of goods and materials splendid attire mechanism overlaps with buffer gear's upper surface, and buffer gear is folding when not using receive and releases in the planar structure department that overlaps, and the gasbag is wrapped inside the skeleton.

An airdrop method with controllable opening time of a buffer mechanism utilizes the airdrop device with controllable opening time of the buffer mechanism, and comprises the following steps:

a. when an air-drop system which is filled with materials and consists of a speed reducing mechanism, a material containing mechanism and a buffer mechanism is dropped in an air-drop manner, the air-drop system is directly taken out of the cabin and dropped out in a designated area;

b. after the material is taken out of the bin, the speed reducing mechanism starts to work, the time delay mechanism also starts to work, when the material falls to a certain height, the speed reducing mechanism generates certain resistance in the falling process, the time delay mechanism stops working when the resistance reaches a certain numerical value, the unlocking mechanism starts to work at the moment, the locking mechanism is opened by the unlocking mechanism to enable the buffering mechanism to be opened, and the opened buffering mechanism can normally land and buffer.

The invention has the beneficial effects that:

(1) according to the characteristic that the resistance of a speed reducing umbrella in a speed reducing mechanism is gradually increased along with the increase of the speed in the falling process of an air-drop part, a time delay mechanism capable of enabling an unlocking mechanism to work in a time delay mode is utilized, the working process of the time delay mechanism is related to the resistance of the speed reducing mechanism in the falling process, and then a device for automatically opening a buffering air bag by utilizing the speed reducing mechanism automatically forces the unlocking mechanism to open a blocking mechanism by utilizing the resistance generated in the falling process of the speed reducing mechanism so as to open the buffering mechanism;

(2) the time delay mechanism comprises a cotton rope with selectable breaking strength, the unlocking mechanism comprises a pull rope, the opening time of the air bag in the buffer mechanism can be controlled through one cotton rope and one pull rope, the cost is very low, the manufacturing is very simple, and the economic benefit is higher;

(3) according to the device for automatically opening the buffering air bag by utilizing the speed reducing mechanism during air drop, the buffering mechanism with the folding structure is arranged, and the buffering mechanism is allowed to be opened after the empty head part is taken out of the cabin, so that the volume of the buffering mechanism can be greatly reduced, the volume of the whole air drop system can be reduced, and the storage and transportation space can be greatly saved;

(4) the device for automatically opening the buffering airbag by using the speed reducing mechanism during airdrop automatically forces the unlocking mechanism to open the locking mechanism by using the resistance generated by the speed reducing mechanism in the falling process so as to open the buffering mechanism, and the buffering mechanism forms a structure with a buffering function after being opened, so that the normal use of the buffering mechanism can not be influenced by the folding structure of the buffering mechanism;

(5) the method for automatically opening the buffering air bag by using the speed reducing mechanism during air drop has simple operation steps, is not limited by machine types, and has wide application range.

Drawings

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

FIG. 2 is a schematic structural view of embodiment 2 of the present invention;

fig. 3 is a schematic structural view of the embodiment 1(2) of the present invention when the skeleton is completely opened.

Illustration of the drawings:

1. a speed reduction mechanism; 11. a speed reducing umbrella; 12. an umbrella rope; 2. a material holding mechanism; 21. a connecting portion; 22. a receiving groove; 3. a buffer mechanism; 31. an air bag; 32. air holes; 33. a framework; 4. a locking mechanism; 5. an unlocking mechanism; 6. a time delay mechanism; 7. an elastic cord.

Detailed Description

The invention will be described in further detail below with reference to the drawings and specific examples.

Example 1:

as shown in the attached drawings 1 and 3, the airdrop device with the controllable opening time of the buffer mechanism comprises a speed reducing mechanism 1, a material containing mechanism 2 and a buffer mechanism 3 which are sequentially connected from top to bottom, wherein the buffer mechanism 3 comprises an air bag 31, an air hole 32 is formed in the air bag 31, the air bag 31 is blocked by a blocking mechanism 4 after being folded when not being put, the speed reducing mechanism 1 is connected with the blocking mechanism 4 through an unlocking mechanism 5, and the resistance generated by the speed reducing mechanism 1 in the falling process automatically forces the unlocking mechanism 5 to open the blocking mechanism 4 to open the buffer mechanism 3; a delay mechanism 6 which enables the unlocking mechanism 5 to work in a delayed mode is arranged between the speed reducing mechanism 1 and the material containing mechanism 2, and the working process of the delay mechanism 6 is related to the resistance of the speed reducing mechanism 1 in the falling process.

In this embodiment, the decelerating mechanism 1 comprises a decelerating umbrella 11 and an umbrella rope 12 below the decelerating umbrella 11, the time delay mechanism 6 comprises a cotton rope with selectable breaking strength, the cotton rope is connected with the bottom end of the decelerating umbrella 11 and the upper end of the material containing mechanism 2, and when the cotton rope is in a straightening state, the umbrella rope 12 is in a non-straightening state; when the cotton rope is broken by the descending resistance from the speed reducing mechanism 1, the umbrella rope 12 is straightened, the unlocking mechanism 5 starts to work to open the blocking mechanism 4, and the air bag 31 is automatically inflated through the air hole 32 after the buffer mechanism 3 is opened.

In this embodiment, the drogue 11 is connected with the material holding mechanism 2 through the umbrella rope 12 and the connecting portion 21 arranged on the material holding mechanism 2, the top end of the umbrella rope 12 is connected with the drogue 11, the bottom end of the umbrella rope 12 is connected with the connecting portion 21, the connecting portion 21 is one of a handle, a connecting ring or a connecting lock, the connecting portion 21 can also be another simple or complex structure which is convenient for fixedly connecting with the umbrella rope 12, the number of the connecting portions is even, and are symmetrically arranged on the side surface of the material containing mechanism 2, so that after the material containing mechanism 2 is lifted through the connecting part 21, the material containing mechanism 2 is not easy to incline or invert, which causes the buffer mechanism 3 to play a role, the top end of the umbrella rope 12 is also connected with the unlocking mechanism 5, the unlocking mechanism 5 is driven to start working by the pulling action of the umbrella rope 12, so that the locking mechanism 4 is unlocked and locked; the upper surface of the material containing mechanism 2 is provided with a containing groove 22 for containing the speed reducing mechanism 1, the speed reducing mechanism 1 is contained in the containing groove 22 before being put in, the speed reducing mechanism 1 is completely contained in the containing groove 22 when not used, and the whole airdrop system is favorably stacked and stored

In this embodiment, the unlocking mechanism 5 includes a pulling rope, one end of the pulling rope is connected to the lower end of the umbrella rope 12, and the other end of the pulling rope is connected to a lock head portion of the locking mechanism 4, which plays a role of opening. The locking mechanism 4 includes a locking ring and a lock pin (a lock head portion functioning as an opening function) inserted in the locking ring. The stay cord can produce the pulling force to the lock needle because of the resistance that reduction gears 1 gave in the in-process that falls, makes the lock needle pull out from blockading the ring, and then makes buffer gear 3 open because of the action of gravity, and buffer gear 3's the angle of opening is limited this moment, but along with going on of whereabouts, aerifys from the gas pocket in the gasbag 31 among the buffer gear 3, and gasbag 31 inflation process can drive buffer gear 3 and further open. The outer side of the material containing mechanism 2 can be provided with a fixing groove or a fixing pipe (not shown in the figure) for the stay cord to pass through, the fixing groove or the fixing pipe can ensure that the stay cord is tightly attached to the material containing mechanism 2, the phenomenon that the stay cord is messy can be prevented, the winding phenomenon of the adjacent stay cord can be avoided, and the reliability is high.

In this embodiment, the buffer mechanism 3 further includes a foldable frame 33, the frame 33 is a straight structure when folded, and is an inverted "U" structure when unfolded, two sides of the "U" structure are respectively connected with the material holding mechanism 2 through the elastic ropes 7, when the material containing mechanism 2 and the buffer mechanism 3 are both in the folded state when not put in, the material containing mechanism 2 can generate certain pressure on the buffer mechanism 3 to ensure that the elastic rope 6 is always in the stretched state, and because the buffer mechanism 3 is still in the folded state due to the existence of the blocking mechanism 4 when not being thrown, after the material is thrown, the resistance generated in the falling process of the speed reducing mechanism 1 automatically forces the unlocking mechanism 5 to open the blocking mechanism 4 to open the buffer mechanism 3, and the buffer mechanism 3 can be further opened under the action of the elastic rope 7, so that the buffer mechanism 3 can better exert the buffer function. Skeleton 33 sets up inside gasbag 31, the structure between gasbag 31 and the skeleton 32 can be the integral type structure, also can be split type structure, when being the integral type structure between gasbag 31 and skeleton 32, skeleton 32 links together with gasbag 31, the folding process of skeleton 32 can drive the folding process of gasbag 31 and go on, when being split type structure between gasbag 31 and skeleton 32, skeleton 32 relies on the structure of itself to fold, and gasbag 31 can rely on the material of itself (generally all is soft material, fold like the form of folding clothes very easily), the existence of skeleton 33 both does benefit to buffer gear 3's storage, can form the supporting role to gasbag 31 after opening again, form the double buffering effect of gasbag 31 buffering and support buffering. The material containing mechanism 2 and the buffer mechanism 3 are of an integrated structure, the material containing mechanism 2 and the buffer mechanism 3 share one plane structure, and the buffer mechanism 3 is folded and stored at the shared plane structure when not used, so that the storage and transportation space is not occupied too much, and the stacking, storage and delivery are facilitated.

An airdrop method with controllable opening time of a buffer mechanism utilizes the airdrop device with controllable opening time of the buffer mechanism, and comprises the following steps:

a. when an air-drop system which is filled with materials and consists of a speed reducing mechanism 1, a material containing mechanism 2 and a buffer mechanism 3 is dropped in an air-drop manner, the air-drop system is directly taken out of a cabin and dropped out in a designated area;

b. after the vehicle leaves the warehouse, the speed reducing mechanism 1 starts to work, the time delay mechanism 6 also starts to work, when the vehicle falls to a certain height, the speed reducing mechanism 1 generates certain resistance in the falling process, when the resistance reaches a certain numerical value, the time delay mechanism stops working, the unlocking mechanism 5 starts to work at the moment, the locking mechanism 4 is opened by the unlocking mechanism 5 to open the buffer mechanism 3, and the opened buffer mechanism 3 can normally land and buffer.

Example 2:

as shown in fig. 2 and 3, the airdrop device with controllable opening timing of the buffer mechanism of the present embodiment is different from that of embodiment 1 in that: the skeleton 33 is disposed outside the airbag 31. Goods and materials splendid attire mechanism 2 and buffer gear 3 are split type structure, and the lower surface of goods and materials splendid attire mechanism 2 overlaps with buffer gear 3's upper surface, and buffer gear 3 is folding when not using receive and releases in the planar structure department that overlaps, and gasbag 31 is inside by the cladding skeleton 33. When the reduction mechanism 1 falls, the reduction umbrella 11 is opened, the umbrella rope can generate pulling force on the pulling rope in the unlocking mechanism 5, the locking mechanism 4 is opened through the pulling force of the pulling rope, the framework 33 is opened, air enters the framework 33 and enters the air bag 31 from the air hole 32, the air bag 31 is inflated, the air bag 31 is expanded to open the framework 33, and the framework 33 can be completely opened finally under the action of the elastic rope 7; the locking mechanism 4 comprises a slipknot formed by a locking ring and a thread rope, and the slipknot is opened under the action of the pulling force of the pulling rope, so that the effect of opening the buffer mechanism 3 can be achieved.

The airdrop method in which the opening timing of the damper mechanism is controllable in this embodiment is the same as that in embodiment 1.

Claims (10)

1. An airdrop device with a controllable opening time of a buffer mechanism comprises a speed reducing mechanism, a material containing mechanism and the buffer mechanism which are sequentially connected from top to bottom, and is characterized in that the buffer mechanism comprises an air bag, an air hole is formed in the air bag, the air bag is blocked by a blocking mechanism after being folded when not put in, the speed reducing mechanism is connected with the blocking mechanism through an unlocking mechanism, and resistance generated by the speed reducing mechanism in the falling process automatically forces the unlocking mechanism to open the blocking mechanism so as to open the buffer mechanism; and a delay mechanism for delaying the unlocking mechanism to work is arranged between the speed reducing mechanism and the material containing mechanism, and the working process of the delay mechanism is related to the resistance of the speed reducing mechanism in the falling process.

2. The airdrop device with the controllable opening time of the buffer mechanism according to claim 1, wherein the deceleration mechanism comprises a deceleration umbrella and an umbrella rope below the deceleration umbrella, the delay mechanism comprises a cotton rope with selectable breaking strength, the cotton rope is connected with the bottom end of the deceleration umbrella and the upper end of the material containing mechanism, and when the cotton rope is in a straightened state, the umbrella rope is in a non-straightened state; when the cotton rope is broken by the falling resistance from the speed reducing mechanism, the umbrella rope is straightened, the unlocking mechanism starts to work, the locking mechanism is opened, and the air bag starts to be inflated.

3. The airdrop device with the controllable opening time of the buffer mechanism is characterized in that the unlocking mechanism comprises a pull rope, one end of the pull rope is connected with the lower end of the umbrella rope, and the other end of the pull rope is connected with a lock head part which plays an opening function in the locking mechanism.

4. The airdrop device with the controllable opening time of the buffer mechanism as claimed in claim 1, 2 or 3, wherein the locking mechanism comprises a locking ring and a locking pin inserted into the locking ring, or the locking mechanism comprises a slipknot formed by the locking ring and a wire rope, or the locking mechanism is one of the prior art locking structures which can be opened by a certain pulling force.

5. The airdrop device with the controllable opening time of the buffer mechanism according to claim 1, 2 or 3, wherein the buffer mechanism further comprises a foldable framework, the framework is in a straight structure when in a folded state, and is in an inverted U-shaped structure when in an unfolded state, two sides of the U-shaped structure are respectively connected with the material containing mechanism through elastic ropes, and when not being thrown, the elastic ropes are in a stretched state.

6. The airdrop device with controllable opening timing of a buffer mechanism according to claim 5, wherein the skeleton is disposed inside the airbag.

7. The airdrop device with the controllable opening time of the buffer mechanism as claimed in claim 6, wherein the material containing mechanism and the buffer mechanism are of an integrated structure, the material containing mechanism and the buffer mechanism share a plane structure, and the buffer mechanism is folded and stored at the shared plane structure when not in use.

8. The airdrop device with controllable opening timing of a buffer mechanism according to claim 5, wherein the skeleton is provided outside the airbag.

9. The airdrop device with the controllable opening time of the buffer mechanism according to claim 8, wherein the material containing mechanism and the buffer mechanism are of a split structure, the lower surface of the material containing mechanism is overlapped with the upper surface of the buffer mechanism, the buffer mechanism is folded and stored at the overlapped plane structure when not in use, and the air bag is covered inside the framework.

10. An airdrop method with controllable opening timing of a damper, characterized in that the airdrop device with controllable opening timing of a damper according to any one of claims 1 to 9 is used, and comprises the following steps:

a. when an air-drop system which is filled with materials and consists of a speed reducing mechanism, a material containing mechanism and a buffer mechanism is dropped in an air-drop manner, the air-drop system is directly taken out of the cabin and dropped out in a designated area;

b. after the material is taken out of the bin, the speed reducing mechanism starts to work, the time delay mechanism also starts to work, when the material falls to a certain height, the speed reducing mechanism generates certain resistance in the falling process, the time delay mechanism stops working when the resistance reaches a certain numerical value, the unlocking mechanism starts to work at the moment, the locking mechanism is opened by the unlocking mechanism to enable the buffering mechanism to be opened, and the opened buffering mechanism can normally land and buffer.

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