Novel parachute
By designing a small paratrooper parachute with air cushion, the problem of insufficient height restrictions and safety of existing parachutes when paratroopers are released is solved, and the effect of rapid, precise and safe delivery of paratroopers is achieved, adapting to the airdrop needs of modern warfare.
Patent Information
- Application Number
- CN202411697531.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-02-18
AI Technical Summary
Existing parachutes have problems such as height restrictions, long time left in the air, susceptible to turbulence, conflicting low-altitude flight tactics when parachutes are released, resulting in unsafe and inefficient parachutes.
A small umbrella suit with air cushion is designed to drop paratrooper parachutes at a low altitude. The umbrella is composed of seat frames, inflatable umbrellas, inflatable cushions, air pumps, laces and umbrella bags. It has the characteristics of rapid inflation, lightweight and compactness, and adaptable to low-altitude flight.
The parachute can quickly open the parachute at extremely low altitudes, eliminate the tension and fear of parachutes when taking off, avoid the risk of failure in parachute opening, ensure the rapid, accurate and safe delivery, adapt to the aircraft's low-altitude flight tactics, and improve the delivery efficiency of the airborne troops.
Smart Images
Figure CN119460117A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of airborne equipment, and in particular to a new type of parachute for dropping paratroopers at ultra-low altitude. Background Art
[0002] As an airborne device, the role of a parachute is to ensure the safety of the parachutist's landing. Currently, such devices all use a large canopy to slow down the landing speed and reduce the impact of landing to ensure landing safety. However, such parachutes obviously have many related problems when used for paratroopers.
[0003] First, the process of the canopy opening takes a certain amount of time and space, so the minimum altitude for parachuting is subject to certain restrictions. Baidu data shows that the entire process from the canopy opening to the adjustment of the parachute rope takes about two seconds and the altitude must drop at least 100 meters. Therefore, in order to ensure the safety of the paratroopers, the minimum parachuting altitude is generally set at 150 meters. At present, my country stipulates that it is 800-400 meters, and the average in the West is 500 meters.
[0004] Such a height restriction, first, will cause the paratroopers to stay in the air for a long time, posing a threat of more ground attacks. Second, it is easy to cause the landing process to be affected by turbulence, causing a large deviation in the drop point. Third, it will conflict with the aircraft's low-flying tactics to avoid radar. Obviously, the first two points are very unfavorable for the rapid, safe and accurate delivery of paratroopers and the rapid and maneuverable advancement of the war, while the third point will significantly reduce the effectiveness of aircraft in airdrops behind enemy lines, seriously weakening the advantages of paratroopers in airborne assaults.
[0005] Secondly, the canopy can only be opened after the jump. Therefore, it can neither provide visual information support for the paratroopers before the jump, which can cause tension and fear, nor can it cause failures, which can lead to the risk of parachuting failure. This makes overcoming tension and fear and mastering the skills to deal with dangerous situations an important part of paratrooper training. This kind of training requires a long time and huge investment, making the training of paratroopers comparable to that of fighter pilots. This has brought great restrictions and constraints to the large-scale construction of airborne troops, and thus has a certain impact on national defense construction. Summary of the invention
[0006] The purpose of the present invention is to provide a parachute with a small canopy and air cushion for ultra-low altitude paratrooper drop. The paratrooper can eliminate the nervousness and fear of the paratroopers when taking off to the greatest extent, completely avoid the risk of parachute opening failure, adapt to the low-altitude flight tactics of aircraft avoiding radar, and ensure the rapid, accurate and safe drop of the paratroopers.
[0007] The umbrella consists of a seat frame, an inflatable umbrella, an inflatable cushion, an air pump, a strap and an umbrella bag.
[0008] The seat frame consists of a longitudinal frame and a transverse frame.
[0009] The longitudinal frame is a long strip of tubular frame.
[0010] The transverse frame comprises a front transverse frame and a rear transverse frame, and both the front and rear transverse frames are composed of a bracket and a wing frame.
[0011] The bracket is a square pipe frame, and a long strip stopper is provided at the outer position below the left and right frames.
[0012] The wing frame is a bilaterally symmetrical square pipe frame, each of which has four prismatically distributed blocks in the frame. There is a vertical circular hole at the corresponding position on each block. The inner side of the wing frame is movably connected to the left and right sides of the bracket through hinges, and the minimum folding angle between the two is 90°. There is a burr tie on the outer position between the front and rear sides of the left and right wing frames.
[0013] The front and rear transverse frames are respectively connected to the front and rear parts of the longitudinal frame through brackets from below.
[0014] An inflatable umbrella is composed of a canopy, an air tube and umbrella ropes.
[0015] The umbrella canopy is in the shape of a square box cover, with a grid airbag made of double-layer umbrella canopy in the middle and skirt-style umbrella canopy on the four sides. There is a ventilation interface on the lower umbrella canopy at the intersection of the tic-tac-toe-shaped bag tube in the middle of the grid airbag, and there are four ring buckles distributed in a rectangular shape on the umbrella canopy in the center.
[0016] The trachea includes the lower trachea and the upper trachea.
[0017] The lower air pipe is composed of a footing pipe and a ventilation pipe.
[0018] The footrests are divided into four types: a left front footrest, a right front footrest, a left rear footrest and a right rear footrest.
[0019] The ventilation pipe includes different diameter direct pipe, umbrella ball valve, elbow, straight pipe and three-dimensional tee.
[0020] In the footing tubes, the left front footing tube, the left rear footing tube and the right rear footing tube are all directly different diameter tubes with larger upper end diameters, and are fixed on corresponding pads with round holes after being fitted with plugging caps at the lower ends.
[0021] The right front foothold pipe is a reducing elbow with a larger diameter at the upper end. The horizontal pipe at the lower part is connected with the reducing direct pipe, umbrella ball valve, elbow, straight pipe and three-dimensional tee in the ventilation pipe in sequence, and is fixed on the pad by a riding clamp.
[0022] The pads connected to the footing pipes are respectively fixed on the left and right sides of the corresponding brackets of the front and rear transverse frames, and the upper planes thereof are flush with the upper planes of the longitudinal frames.
[0023] In the ventilation pipe, the downward vertical branch pipe of the three-dimensional tee is placed in a frame connected with the bracket at the front of the longitudinal frame.
[0024] The upper air pipe is composed of four column air bags, the lower end of each column air bag is connected with the upper end pipe opening of each foot pipe, and the upper end is connected with the ventilation interface of the grid air bag.
[0025] The parachute lines are composed of inner parachute lines and outer parachute lines.
[0026] The inner parachute ropes are divided into four parts: left front parachute rope, right front parachute rope, left rear parachute rope and right rear parachute rope. Their length is equal to that of the column airbag. Their upper ends are connected to the buckles on the parachute canopy in the center of the grid airbag, and their lower ends are connected to the vertically corresponding buckles on the longitudinal frame.
[0027] The outer parachute ropes are divided into four groups: the left front corner parachute rope, the right front corner parachute rope, the left rear corner parachute rope, and the right rear corner parachute rope. Each group has five ropes, and the lengths are slightly different. The upper end of each group of parachute ropes is connected to the lower edge of the skirt-style umbrella canopy at the corner at an equal distance at five points, and the lower end is connected to the lower end of the inner parachute rope on the longitudinal frame of the corner.
[0028] The inflatable cushion consists of a balloon and a ventilation tube.
[0029] There are four balloons in total, all of which are specially made yoga balls that can withstand a certain amount of pressure. The top of the ball is connected to four rectangular rubber pieces with round holes. The round holes on the rubber correspond to the round holes on the embedded blocks of the wing frame. The balloons are fixed to the wing frames from below by parent-child bolts through the rubber. There is a round spongy soft block in the middle of the inner side of the balloon. After inflation, the soft blocks of the left and right balloons are pressed against each other, and the transverse frames in front and behind the seat frame are unfolded horizontally.
[0030] The vent pipe is composed of a dorsal tube, an inner air nozzle, a hose, an outer air nozzle, and a gasket ball valve. The dorsal tube is fixed in the middle of the longitudinal frame, and has a vertically downward blind pipe at the front and rear positions in the middle of the longitudinal frame, the inner air nozzle is connected to the left and right sides of the blind pipe, the inner end of the hose is connected to the inner air nozzle, the outer end is connected to the outer air nozzle, and the outer air nozzle is connected to the valve of the balloon.
[0031] The front end of the spine tube is connected with the horizontal branch pipe of the three-dimensional tee through a ball valve.
[0032] The air pressure gauge is connected to the rear end of the spinal tube via the valve core.
[0033] The air pump is a wireless charging and suction dual-purpose pump tied and hung under the longitudinal frame. There is a fixedly connected downwardly open square box in the middle rear position under the longitudinal frame, and a fixedly connected vertical support rod in the middle position. The air pump base and pump barrel are respectively tied and fixed under the square box and the support rod by burr ties. The outer end pipe mouth of the air pump exhaust pipe is fixedly connected to the downward vertical branch pipe of the three-dimensional tee, and the inner end pipe mouth is clamped on the air outlet of the pump barrel when inflating, and is clamped on the air inlet of the air pump when vacuuming.
[0034] The straps include chest strap and shoulder straps.
[0035] The chest belt is divided into two parts: the front belt and the back belt.
[0036] The front strap is a short strap with both ends fixedly connected in the middle between the left front parachute rope and the right front parachute rope, and each end has an upward horizontal double-ring buckle and a vertical double-ring buckle to the left and right.
[0037] The rear belt is a long belt, the middle part of which is fixedly connected to the middle position between the left rear umbrella rope and the right rear umbrella rope, and the two ends can be connected to the vertical buckles on the left and right ends of the front belt.
[0038] The shoulder strap is divided into a left shoulder strap and a right shoulder strap, the rear ends of which are fixedly connected to the middle part of the rear belt, and the front ends can be connected to the horizontal buckles at the ends of the front belt from the left and right sides respectively.
[0039] The umbrella bag is a saddle-shaped zippered cloth bag. There are small square pockets at both ends of the lower part of the bag. The upper part is a large pocket that opens left and right and is connected to the lower two ends. There is a zipper on the convex pocket opening on the top and a zipper on the concave pocket opening on the bottom. There is a shoulder strap on each side of the bag.
[0040] The parachute and the cushion are integrated into one. After inflation, the grid airbag of the canopy is propped up and opened on the top by the column and the air cushion connected by four balloons is connected under the seat frame. It can ensure that the parachutist lands in a normal posture and can also ensure that the parachutist is not injured by the impact of landing. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] Figure 1 It is a top view schematic diagram of the longitudinal frame;
[0042] Figure 2 It is a schematic diagram of the side elevation of the longitudinal frame;
[0043] Figure 3 It is a front plan view schematic diagram of the horizontal frame being deployed horizontally;
[0044] Figure 4 It is a top view schematic diagram of the horizontal frame being horizontally unfolded;
[0045] Figure 5 It is a bottom-up schematic diagram of the horizontal frame being horizontally unfolded;
[0046] Figure 6 It is a front view schematic diagram of the seat frame when the transverse frame is folded vertically;
[0047] Figure 7 It is a side elevational schematic diagram of the seat frame when the transverse frame is folded vertically;
[0048] Figure 8 It is a schematic diagram of the side view of the top of the canopy;
[0049] Fig. 9 This is a schematic diagram of the bottom of the canopy when viewed from above;
[0050] Fig.10 It is a schematic diagram of the side view of the umbrella canopy;
[0051] Fig.11 is a right side cross-sectional schematic diagram of the connection between the right rear footrest tube and the pad;
[0052] Fig.12 1. It is a top view schematic diagram of the connection between the right front footrest tube and the ventilating tube;
[0053] Fig.13 is a front view schematic diagram of a vent pipe connected to the right front footrest tube;
[0054] Fig.14 This is a top view of the four footing tubes;
[0055] Fig.15 It is a right side plan view schematic diagram of the connection between the pillar airbag and the upper and lower end components;
[0056] Fig.16 It is a top view schematic diagram of the buckle corresponding to the buckle on the canopy at the center of the grid airbag at the lower end of the inner parachute rope on the longitudinal frame;
[0057] Fig.17 This is a right side view of the connection between the inner parachute rope and the upper and lower ring buckles;
[0058] Fig.18 It is a schematic diagram of the area grouping of the connection points between the upper ends of the outer parachute ropes and the lower edge of the skirt-type parachute canopy;
[0059] Fig.19 It is a frontal view schematic diagram of the connection points of the upper and lower ends of the outer parachute ropes when the canopy is opened;
[0060] Fig. 20 This is a top-down view of the top of the balloon;
[0061] Fig.21 It is a schematic diagram of the inner side of the balloon from a horizontal perspective;
[0062] Fig. 22 It is a schematic diagram of the front view of the seat frame connected to the wing frame in the inflated state;
[0063] Fig.23 It is a top view schematic diagram of the front part of the seat frame connected to the balloon and the wing frame in an inflated state;
[0064] Fig.24 It is a top view schematic diagram of the air cushion ventilation tube;
[0065] Fig.25It is a bottom view of the air cushion snorkel;
[0066] Fig.26 It is a schematic diagram of the back plane view of the connection between the blind tube and the hose at the front position in the middle of the dorsal tube;
[0067] Fig. 27 is a right side plan view schematic diagram of the connection between the air pump and the longitudinal frame;
[0068] Fig.28 It is a frontal plan view of the front strap of the bust band;
[0069] Fig.29 It is a frontal plan view of the back tie of the bust belt;
[0070] Fig.30 It is a frontal view schematic diagram of the shoulder strap;
[0071] Fig.31 It is a schematic diagram of the side view of the parachute pack;
[0072] Fig.32 It is a frontal view schematic diagram of the main components of the overall structure of the new parachute after inflation;
[0073] Fig.33 It is a right-side plan view of the main components of the overall structure of the new parachute after inflation. DETAILED DESCRIPTION
[0074] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.
[0075] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the seat frame of the umbrella is composed of a longitudinal frame and a transverse frame.
[0076] The longitudinal frame (1) is a pipe frame with a length of 100 cm, a width of 10 cm and a pipe diameter of 30X30 mm.
[0077] The transverse frame comprises a front transverse frame and a rear transverse frame, and the front and rear transverse frames are both composed of a bracket (2) and a wing frame (3).
[0078] The bracket (2) is a square pipe frame with a side length of 25 cm and a pipe diameter of 25 x 25 mm. A long strip stopper (4) is provided below the left and right frames of the bracket.
[0079] The wing frame (3) is a square pipe frame with a symmetrical side length of 25 cm and a pipe diameter of 25x25 mm. There are four prismatically distributed inserts (5) in the frame. The corresponding position of each insert has a vertical circular hole. The wing frame (3) is movably connected to the left and right sides of the bracket (2) through a hinge (6). The minimum angle of rotation between the two is 90°. There is a burr tie (7) at the outer position between the front and rear side surfaces of the left and right wing frames (3). The burr tie (7) can tie the left and right wing frames (3) into a folded shape perpendicular to the bracket (2).
[0080] The front and rear transverse frames are respectively supported on the front and rear parts of the longitudinal frame (1) from below via brackets (2).
[0081] like Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 , Fig.17 , Fig.18 , Fig.19 As shown, the inflatable umbrella of the umbrella is composed of an umbrella canopy, an air tube and an umbrella rope.
[0082] The umbrella canopy is in the shape of a square box cover, with a side length of about 120 cm, a grid air bag (8) composed of a double-layer umbrella canopy in the middle, and drooping skirt-style umbrella canopies (9) on the four sides. There is a ventilation interface (10) on the lower umbrella canopy at the intersection of the well-shaped bag tube in the middle of the grid air bag (8), and four ring buckles (11) distributed in a rectangular shape are arranged on the umbrella canopy at the center.
[0083] The trachea includes a lower tube and an upper tube.
[0084] The lower tube is composed of a footing tube and a vent tube.
[0085] The foothold pipes are divided into four parts: a left front foothold pipe (12), a right front foothold pipe (13), a left rear foothold pipe (14), and a right rear foothold pipe (15). The vent pipe comprises a different diameter direct pipe (16), an umbrella ball valve (17), an elbow (18), a straight pipe (19), and a three-dimensional three-way pipe (20).
[0086] In the footing pipe, the left front footing pipe (12), the left rear footing pipe (13) and the right rear footing pipe (15) are all different diameter straight pipes with an upper end diameter of 75 mm. After the different diameter straight pipes are fitted with a plug cap (21) at the lower end, they are respectively fixed on the corresponding pad (22) with a round hole. In the footing pipe, the right front footing pipe (13) is a different diameter elbow with an upper end diameter of 75 mm. The horizontal pipe at the lower part is connected with the different diameter straight pipe (16), the umbrella ball valve (17), the elbow (18), the straight pipe (19) and the horizontal branch pipe of the three-dimensional tee (20) in sequence, and is fixed on the pad (24) through a riding clamp (23).
[0087] The pads connected to the footing pipes are respectively fixed on the left and right sides of the corresponding brackets (2) of the front and rear transverse frames, and the upper planes thereof are flush with the upper plane of the longitudinal frame (1).
[0088] In the ventilation pipe, the downward vertical branch pipe (25) of the three-dimensional three-way (20) is placed in a frame connected to the bracket (2) at the front of the longitudinal frame (1).
[0089] The upper air pipe is four column air bags (26) with a length of about 110 cm and a diameter of 75 mm, the lower ends of which are connected to the upper end pipe openings of the foot pipes, and the upper ends are connected to the ventilation interfaces (10) on the grid air bags (8).
[0090] The parachute rope of an inflatable umbrella is composed of an inner parachute rope and an outer parachute rope.
[0091] The inner parachute ropes are divided into four pieces, namely, a left front parachute rope (27), a right front parachute rope (28), a left rear parachute rope (29), and a right rear parachute rope (30). The length of the inner parachute ropes is equivalent to that of the column airbag (26). The upper ends of the inner parachute ropes are respectively connected to the ring buckles (11) on the umbrella canopy at the center of the grid airbag (8), and the lower ends are respectively connected to the vertically corresponding ring buckles (31) on the longitudinal frame (1).
[0092] The left front parachute rope (27) and the left rear parachute rope (29), the right front parachute rope (28) and the right rear parachute rope (30) are all about 20 cm apart, which is roughly equivalent to the thickness of an ordinary adult's chest.
[0093] The outer umbrella ropes are divided into four groups, namely, a left front corner umbrella rope (32), a right front corner umbrella rope (33), a left rear corner umbrella rope (34), and a right rear corner umbrella rope (35). Each group has five umbrella ropes with slightly different lengths. The upper ends of the umbrella ropes of each group are connected to the lower edge of the skirt-shaped umbrella canopy (9) at the corner at an equal distance of 24 cm at five points, and the lower ends are connected to the lower end ring buckle (31) of the inner umbrella rope at the corner.
[0094] When inflated, the opened grid airbag (8) is pulled by the parachute rope, and the top thereof is in a transverse arc shape with a convex top and a concave bottom.
[0095] like Fig. 20 , Fig.21 , Fig. 22 , Fig.23 , Fig.24 , Fig.25 , Fig.26 As shown, the inflatable cushion of the umbrella is composed of a balloon and a snorkel.
[0096] There are four balloons (36), all of which are specially made yoga balls capable of bearing a certain weight. The maximum diameter after inflation is about 45 cm. Four rectangular rubber sheets (37) with round holes are connected to the top. The round holes on the rubber sheets (37) correspond to the round holes on the inserts (5) of the wing frame (3). The balloons (36) are fixedly connected to the wing frame (3) from below by means of a mother-and-child bolt (38) through the rubber sheets (37). There is a circular sponge soft block (39) about 2.5 cm thick in the middle of the inner side of the balloon (36). After inflation, the soft blocks (39) on the left and right balloons (36) are pressed against each other, and the front and rear transverse frames of the seat frame are horizontally unfolded.
[0097] The vent pipe is composed of a spinal tube (40), an inner air nozzle (41), a hose (42), an outer air nozzle (43), and a gasket ball valve (44).
[0098] The back tube (40) is fixed in the middle of the longitudinal frame (1), and a vertically downward blind tube (45) is provided at the front and rear positions of the middle part, an inner air nozzle (41) is connected to the left and right sides of the blind tube (45), an inner end of a hose (42) is connected to the inner air nozzle (41), and an outer end is connected to an outer air nozzle (43), and the outer air nozzle (43) is connected to a valve (46) of a balloon (36). The front end of the back tube (40) is connected to the horizontal branch of the three-dimensional three-way (20) through a ball valve (44), and the rear end of the back tube (40) is connected to a pressure gauge (48) through a valve core (47).
[0099] like Fig. 27 As shown, the air pump of the umbrella is a wireless charging and suction dual-purpose pump tied to the bottom of the longitudinal frame (1).
[0100] A downwardly open square box (49) is fixedly connected at the rear middle position below the longitudinal frame (1), and a vertical support rod (50) is fixedly connected at the middle position. The air pump base (51) and the pump barrel (52) are respectively tied to the square box (49) and the support rod (50) below through a burr tie (53). The outer end pipe mouth (55) of the air pump exhaust pipe (54) is fixedly connected to the downward vertical branch pipe (25) of the three-dimensional tee (20), and the inner end pipe mouth (56) is engaged with the air outlet (57) of the pump barrel (52) when inflating, and is engaged with the air inlet (58) of the pump barrel (52) when exhausting.
[0101] like Fig.28 , Fig.29 , Fig.30 As shown, the harness of the umbrella includes a chest strap and a shoulder strap.
[0102] The chest belt is divided into two parts: a front belt (59) and a back belt (60).
[0103] The front band (59) is a short band, the two ends of which are connected to the middle position between the left front parachute rope (27) and the right front parachute rope (28), and the ends of which have two upward transverse double ring buckles (61) and one vertical double ring buckle (62) to the left and one to the right.
[0104] The rear belt (60) is a long belt, the middle part of which is connected to the middle position between the left rear umbrella rope (29) and the right rear umbrella rope (30), and the two ends can be movably connected with the vertical buckles (62) at the left and right ends of the front belt (59).
[0105] The location where the front and rear chest straps are connected to the parachute rope is equivalent to the height of the chest of an average adult when squatting on the seat frame.
[0106] The shoulder straps are divided into a left shoulder strap (63) and a right shoulder strap (64), the rear ends of which are connected to the middle part of the rear belt (60), and the front ends of which are movably connected to the left and right ends of the front belt (59) through the transverse buckles (61) on the left and right shoulders.
[0107] like Fig.31 As shown, the umbrella bag of the umbrella is a saddle-shaped zipper cloth bag, the lower part of the bag is a small square pocket (65) separated at two ends, the upper part is a large pocket (66) with two sides open and connected to the two ends of the lower part, the upper convex bag opening has a zipper (67), the lower concave bag opening has a zipper (68), and there are shoulder straps (69) on both sides of the bag.
[0108] like Fig.32 , Fig.33 As shown, after the parachute is inflated, the column bag tube (26) props up the grid air bag (8) and opens it on top, and the air cushion formed by the four balloons (36) is connected to the bottom of the seat frame, thereby forming a new type of parachute with an integrated umbrella and cushion.
[0109] In this parachute, the wind resistance area of the canopy (grid airbag) above the head = 1.2x1.2 = 1.44m 2 , the wind resistance area of the crotch balloon air cushion = 3.14x0.225 2 ÷4x4=0.16m 2 The wind resistance area of the canopy is 9 times that of the air cushion. Therefore, although the canopy is small, it can play an absolutely dominant role in maintaining the normal posture of the skydiver during landing. Although the parachute will tilt for a short time due to the airflow of the fuselage when it first leaves the cabin, it will quickly return to the vertical landing state after passing through the airflow. Even if the air cushion may rebound when touching the ground and form a second landing, the canopy that is always open can still play a role in ensuring that the skydiver lands on the ground with a normal body posture.
[0110] In this parachute, the balloon has good flexibility and elasticity and can withstand large gravity. If a single balloon is pressed down about 15cm and bears 250kg, the air cushion formed by the four balloons can bear 1000kg when pressed down about 15cm. It is known that the impact force of a 100kg object falling from a height of 20 meters is approximately F = mgh ÷ t = 100Kg x 9.8m / s 2 x20m÷0.1s=4800N (assuming the contact time is 0.1 seconds), converted to gravity=4800x0.102=489.6 kg, that is, the impact force is only half of the load-bearing capacity of the air cushion when it sinks about 15 cm under pressure. Therefore, when this parachute with a load of 100 kg falls from a height of 20 meters, taking into account the canopy resistance and the contact time of the air cushion, it can be confirmed that the impact force is less than half of the load-bearing capacity of the air cushion. Since the weight of a paratrooper plus weapons and equipment is generally only about 100 kg, it can be confirmed that when a paratrooper jumps from a height of 20 meters with this parachute, landing safety will be absolutely guaranteed.
[0111] The canopy of the parachute is opened above the head and the air cushion sits under the crotch during the jump, so it can provide paratroopers with intuitive and tangible safety protection and completely eliminate the tension and fear. At the same time, during the parachuting process, since the canopy is in an open state from beginning to end, the risk of parachute opening failure can be completely avoided.
[0112] Steps to use the umbrella:
[0113] 1. Take out the parachute from the parachute bag, close the cushion ball valve first, then open the parachute ball valve to inflate the parachute canopy, and after the column airbag lifts up the grid airbag and opens it, close the parachute ball valve.
[0114] Second, untie the burr ties on the front and rear wing frames, open the cushion ball valve to inflate the air cushion. Pay attention to the changes in the pressure gauge value during inflation. When the air pressure is close to the set standard, stop inflating and close the cushion ball valve. At the same time, you can pull out the balloon's air nozzle and replace it with a valve plug.
[0115] Third, first fold the parachute bag to cover the middle of the longitudinal frame, then sit on it and fasten the chest strap and shoulder straps.
[0116] Fourth, grab the inner parachute rope in front of your chest with both hands, stand up and carry the parachute, then walk to the cabin door and jump out sideways to the left or right.
[0117] 5. As you jump, quickly lift your knees to a squatting position.
[0118] 6. After landing firmly on the ground, step on the ground with both feet, untie the straps and stand up.
[0119] 7. First, pump out the air from the canopy, then pump out the air from the air cushion, then fold and fasten the wing frame, roll up the canopy and place it on the longitudinal frame, and finally put the parachute into the parachute bag.
[0120] When the parachute is in use, the vertical frame is about 50cm above the ground. When the parachute bag is used as a seat cushion, the seat surface is about 55cm above the ground, which is about 15cm less than the 70cm height of an average adult's crotch. At the same time, the front and rear horizontal frames are about 50cm apart, and the front and rear balloons are about 30cm apart. Therefore, after the parachute is carried, the paratrooper's legs have enough space for fast walking and sideways jump.
[0121] The pump barrel (52) of the umbrella inflation pump is about 20 cm away from the bottom surface of the longitudinal frame (1). When the balloon falls to the ground and sinks about 15 cm under pressure, the air pump can completely avoid contact with the ground.
[0122] Judging from the actual load-bearing capacity of the air cushion, the upper limit of the take-off height of the parachute has a large room for expansion. According to estimates, its height can be expanded to about 30 meters. Furthermore, the parachute can also be customized with a balloon with a larger load-bearing capacity according to the needs of the set height.
[0123] When the parachute is opened, the net height is about 150cm, and the vertical and horizontal dimensions are no more than 120cm. Compared with the large canopy parachute, it is more compact. Although the operation steps are slightly more, it is simple and convenient to use and fold, especially solving the main problem of safety first, so it has many advantages in training and actual combat.
[0124] From the training point of view, because the parachute is reliable and safe, it can eliminate the paratroopers' nervousness and fear to the greatest extent, greatly reduce the technical requirements of parachuting, and thus greatly shorten the paratrooper training cycle, thereby greatly reducing the investment in human, material and financial resources for paratrooper training, which is of great significance to the construction of paratrooper forces and even national defense construction. The significant shortening of the paratrooper training cycle can directly provide the most powerful guarantee for the rapid training and transportation of a large number of airborne troops in a short period of time for modern cross-sea landing operations.
[0125] From a practical combat perspective, it is not only very helpful for the rapid, safe and accurate deployment of paratroopers and the rapid and maneuverable advancement of war, but also can greatly improve the airdrop efficiency of aircraft in modern warfare, greatly enhancing the advantages of airborne troops in cross-regional raids.
[0126] For paratroopers, skydiving is no longer a life-threatening adventure at high altitudes, but a relaxing leisure experience at ultra-low altitudes. The parachute can also be used for escaping from high-rise buildings and for rappelling from high platforms.
[0127] The parachute has a compact structure, simple process, high safety and strong practicality, and may become an updated equipment for future paratroopers.
Claims
1. A new type of parachute, characterized in that: The umbrella consists of a seat frame, an inflatable umbrella, an inflatable cushion, an air pump, a strap and an umbrella bag.
2. The seat frame according to claim 1, which is composed of a longitudinal frame (1) and a transverse frame, is characterized in that: The longitudinal frame (1) is a long strip frame, and the transverse frame includes a front transverse frame and a rear transverse frame, both of which are composed of a bracket (2) and a wing frame (3). The bracket (2) is a square frame frame, and a long strip stopper (4) is provided at the outer position below the left and right frames. The wing frame (3) is a left-right symmetrical square frame frame, and four prismatically distributed inserts (5) are provided in the frame, and a vertical circular hole is provided at the corresponding position of each insert. The wing frame (3) is movably connected to the left and right sides of the bracket (2) via a hinge (6), and the minimum angle of rotation between the two is 90 degrees. A burr lace (7) is provided at the outer position between the front and rear side surfaces of the left and right wing frames (3). The front and rear transverse frames are supported on the front and rear of the longitudinal frame (1) from below via the bracket (2).
3. The inflatable umbrella according to claim 1, which is composed of an umbrella canopy, an air tube, and an umbrella rope, is characterized in that: The umbrella canopy is in the shape of a square box cover, with a grid air bag (8) composed of a double-layer umbrella canopy in the middle, and a drooping skirt-style umbrella canopy (9) on four sides. The lower umbrella canopy at the intersection of the well-shaped bag tube in the middle of the grid air bag (8) is provided with a ventilation interface (10), and the umbrella canopy at the center is provided with four ring buckles (11) distributed in a rectangular shape; the air pipe comprises a lower air pipe and an upper air pipe, the lower air pipe is composed of a footing pipe and a ventilation pipe, the footing pipe is divided into four parts: a left front footing pipe (12), a right front footing pipe (13), a left rear footing pipe (14), and a right rear footing pipe (15), and the ventilation pipe comprises a different diameter straight pipe (16), an umbrella ball valve (17), an elbow (18), a straight pipe (19), a vertical pipe (11), and a vertical pipe (12). The left front foot pipe (12), the left rear foot pipe (14) and the right rear foot pipe (15) are all different diameter straight pipes with larger upper end diameters, which are respectively fixed on the corresponding pads (22) with round holes after being fitted with plug caps (21). The right front foot pipe (13) is a different diameter elbow with larger upper end diameter. The horizontal pipe at the lower part is connected with the different diameter straight pipe (16), the umbrella ball valve (17), the elbow (18), the straight pipe (19) and the horizontal branch pipe of the three-dimensional tee (20) in sequence, and is fixed on the pads (24) through the riding clamps (23). Each pad is respectively fixed on the left and right sides of the corresponding brackets (2) of the front and rear transverse frames, and its upper plane is parallel to the corresponding brackets (2) of the front and rear transverse frames. The upper plane of the longitudinal frame (1) is flush, and the downward vertical branch pipe (25) of the three-dimensional three-way (20) is placed in a frame connected to the bracket (2) at the front of the longitudinal frame (1). The upper air pipe is four column air bags (26), the lower ends of which are connected to the upper end pipe openings of each foot pipe, and the upper ends are connected to the ventilation interface (10) on the grid air bag (8); the umbrella rope is composed of an inner umbrella rope and an outer umbrella rope. The inner umbrella rope is divided into a left front umbrella rope (27), a right front umbrella rope (28), a left rear umbrella rope (29), and a right rear umbrella rope (30). The length is equivalent to that of the column air bag (26), the upper ends are respectively connected to the ring buckles (11) on the umbrella canopy at the center of the grid air bag (8), and the lower ends are respectively connected to the outer umbrella ropes. The vertically corresponding ring buckles (31) on the longitudinal frame (1) are connected, the left front parachute rope (27) and the left rear parachute rope (29), the right front parachute rope (28) and the right rear parachute rope (30) are all about 20 cm apart, the front and rear distance of the inner parachute rope is roughly equivalent to the thickness of the chest of an ordinary adult, the outer parachute rope is divided into four groups of left front corner parachute rope (32), right front corner parachute rope (33), left rear corner parachute rope (34), and right rear corner parachute rope (35), each group has five ropes, and the lengths are slightly different. The upper ends of the parachute ropes of each group are connected to the lower edge of the skirt-type umbrella canopy (9) at the corner at an equal distance at five points, and the lower ends are connected to the lower end ring buckles (31) of the inner parachute ropes on the longitudinal frame (1) at the corner.
4. The inflatable cushion according to claim 1 is composed of a balloon and a ventilation tube, characterized in that: There are four balloons (36), each of which has four rubber sheets (37) with round holes on the top, and the round holes correspond to the round holes on the insert block (5) of the wing frame (3). The balloon (36) is fixedly connected to the wing frame (3) from below by a mother-and-child bolt (38) through the rubber sheet (37). There is a circular sponge soft block (39) in the middle of the inner side of the balloon (36). After inflation, the soft blocks (39) on the left and right balloons (36) are pressed against each other, and the front and rear transverse frames of the seat frame are horizontally unfolded. The ventilation pipe is composed of a spine tube (40), an inner air nozzle (41), a hose (42), an outer air nozzle (43), and a ventilation pad. The spinal tube (40) is fixed in the middle of the longitudinal frame (1), and a vertically downward blind tube (45) is provided at the front and rear positions of the middle part, an inner air nozzle (41) is connected to the left and right sides of the blind tube (45), an inner end of a hose (42) is connected to the inner air nozzle (41), and an outer end is connected to an outer air nozzle (43), and the outer air nozzle (43) is connected to a valve (46) of a balloon (36), a front end of the spinal tube (40) is connected to a horizontal branch pipe of a three-dimensional three-way (20) through a ball valve (44), and a rear end of the spinal tube (40) is connected to a pressure gauge (48) through a valve core (47).
5. The air pump according to claim 1 is a wireless charging and suction dual-purpose pump tied to the bottom of the longitudinal frame (1), characterized in that: A downwardly open square box (49) is fixedly connected at the rear middle position below the longitudinal frame (1), and a vertical support rod (50) is fixedly connected at the middle position. The air pump base (51) and the pump barrel (52) are respectively tied to the square box (49) and the support rod (50) below through a burr tie (53). The outer end pipe mouth (55) of the air pump exhaust pipe (54) is fixedly connected to the downward vertical branch pipe (25) of the three-dimensional tee (20), and the inner end pipe mouth (56) is engaged with the air outlet (57) of the pump barrel (52) during inflation, and is engaged with the air inlet (58) of the pump barrel (52) during exhaust.
6. The harness according to claim 1, comprising a chest strap and a shoulder strap, characterized in that: The chest belt is divided into a front belt (59) and a back belt (60). The front belt (59) is a short belt, and its two ends are connected to the middle position between the left front umbrella rope (27) and the right front umbrella rope (28). The end has two upward transverse double ring buckles (61) and one left and one right vertical double ring buckle (62). The back belt (58) is a long belt, and its middle part is connected to the middle position between the left rear umbrella rope (29) and the right rear umbrella rope (30). The two ends can be movably connected with the vertical buckles (62) at the left and right ends of the front belt (59). The shoulder strap is divided into a left shoulder strap (63) and a right shoulder strap (64). The rear ends are connected to the middle part of the back belt (60), and the front ends pass through the left and right shoulders and can be movably connected with the transverse buckles (61) at the left and right ends of the front belt (59).
7. The umbrella bag according to claim 1 is a saddle-shaped zipper cloth bag, characterized in that: The lower part of the bag is a small square pocket (65) separated at two ends, the upper part is a large pocket (66) with two sides open and connected to the two ends of the lower part, the upper convex pocket opening is provided with a zipper (67), the lower concave pocket opening is provided with a zipper (68), and the two sides of the bag are respectively provided with a shoulder strap (69).