A device that automatically separates from the parachute after a heavy object is dropped into the water by parachute

Abstract

The present invention discloses a device for automatically separating a heavy object from a parachute after it is airdropped into water by a parachute, and solves the problem of quickly separating a heavy object dropped from the air from a parachute after it enters water. The device comprises a parachute (1) connected to a parachute connecting pin (2) arranged on a U-shaped upper traction seat (3), a drooping heavy object (26) suspending on a drooping heavy object suspending pin (25) arranged on an inverted U-shaped lower traction seat (24), a central screw hole (4) arranged on the bottom plate of the U-shaped upper traction seat (3), an inverted U-shaped lower traction seat central through hole (33) arranged on the top plate of the inverted U-shaped lower traction seat (24), an inverted wine bottle-shaped connector (7) arranged between the U-shaped upper traction seat (3) and the inverted U-shaped lower traction seat (24), and a central support rod (5) with an inverted T-shaped longitudinal section movably arranged on the upper part of the inner cavity of the inverted wine bottle-shaped connector (7). The separation of the heavy object from the parachute is achieved as soon as the parachute enters water, and the heavy object is ensured to sink to the bottom of the water reliably.

Description

Technical Field

[0001] The invention relates to a releasing device, in particular to a device which can drop a heavy object through a parachute after being airdropped, and can quickly separate the heavy object from the parachute after the parachute enters water. Background Art

[0002] Dropping heavy objects into water is a common task at sea, generally used for deep sea exploration or data collection and other tasks. In order to ensure the safety of the dropped equipment, parachute airdrop is generally adopted. When the dropped heavy object enters the water, the parachute needs to be separated from the dropped heavy object to ensure that the dropped equipment can perform subsequent tasks. How to automatically and quickly separate the dropped object from the parachute has become a difficult problem that needs to be solved urgently on site. Summary of the invention

[0003] The present invention provides a releasing device which can automatically separate after an airdrop falls into water, thereby solving the problem of rapid separation of a suspended heavy object from an airdrop and a parachute after the object falls into water.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The device is a device for automatically separating a heavy object from a parachute after it is airdropped into water by a parachute, comprising an upper U-shaped traction seat and an inverted U-shaped lower traction seat, wherein a parachute is connected to a parachute connecting pin arranged on the upper U-shaped traction seat, and a drooping heavy object is suspended on a drooping heavy object hanging pin arranged on the inverted U-shaped lower traction seat, a central screw hole is arranged on the bottom plate of the upper U-shaped traction seat, a central through hole of the inverted U-shaped lower traction seat is arranged on the top plate of the inverted U-shaped lower traction seat, an inverted wine bottle-shaped connector is arranged between the upper U-shaped traction seat and the inverted U-shaped lower traction seat, a bottle bottom center through hole is arranged on the bottle bottom surface of the inverted wine bottle-shaped connector, a central support rod with an inverted T-shaped longitudinal section is movably arranged on the upper part of the inner cavity of the inverted wine bottle-shaped connector, a piston block with an I-shaped longitudinal section is movably arranged on the lower part of the inner cavity of the inverted wine bottle-shaped connector, and the top end of the inverted T-shaped central support rod passes through the center of the bottle bottom surface The through hole is screwed together with the center screw hole set on the bottom plate of the U-shaped upper traction seat, and a compression spring is set between the upper top surface of the cylindrical base of the central support rod and the bottle bottom surface of the inverted wine bottle-shaped connector, and the cylindrical base of the central support rod is top-connected to the top surface of the upper large cylinder of the I-shaped piston block; the shrinking fine nozzle of the inverted wine bottle-shaped connector is movably inserted in the central through hole of the inverted U-shaped lower traction seat, and a steel ball falling-off annular groove is set on the side wall of the inner cavity of the central through hole of the inverted U-shaped lower traction seat, and a steel ball limiting arc surface is set on the top surface of the steel ball falling-off annular groove, and steel ball limiting groove holes are set at intervals on the side walls of the fine nozzle of the shrinking fine nozzle, and a lower small cylinder of the I-shaped piston block is set in the shrinking fine nozzle, and the lower small cylinder is set on the inner side opening of the steel ball limiting groove hole, and a limiting steel ball is clamped between the steel ball limiting groove hole and the steel ball limiting arc surface.

[0006] A horizontal annular step is arranged on the side surface of the inner cavity of the inverted wine bottle-shaped connector, the inner cavity diameter of the inverted wine bottle-shaped connector above the horizontal annular step is small, and the inner cavity diameter of the inverted wine bottle-shaped connector below the horizontal annular step is large; a cylindrical groove is arranged on the lower bottom surface of the cylindrical base of the central support rod, and an annular step is arranged on the upper large cylinder of the I-shaped piston block, the central support rod is movably sleeved on the annular step arranged on the upper large cylinder through the cylindrical groove, a large-mouthed small pin mounting through hole is arranged on the upper step cylinder of the upper large cylinder, a pin thrust spring is arranged in the large-mouthed small pin mounting through hole, a left pin is top-connected at one end of the pin thrust spring, and a right pin is top-connected at the other end of the pin thrust spring, the outer ends of the left pin and the right pin are both top-connected on the inner side surface of the cylindrical groove, and a supporting spring of the central support rod is arranged between the lower bottom surface of the upper large cylinder and the step surface of the inner cavity at the upper end of the contraction fine mouth.

[0007] The inverted wine bottle-shaped connector is composed of an upper cylindrical bottle body and a lower bottle body with a contracted narrow mouth, which are screwed together through threads.

[0008] The present invention arranges the gain and loss of the force of the parachute opening in the connection mechanism between the heavy object and the parachute, so as to form a relative movement among the connection mechanism shell, the central support rod in the shell and the I-shaped piston block, thereby realizing the limiting and releasing of the inverted U-shaped lower traction seat and the I-shaped piston block by the limiting steel ball, achieving the separation of the heavy object and the parachute as soon as the parachute enters the water, thereby ensuring that the heavy object sinks reliably to the bottom of the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the present invention when the parachute 1 is opened and landed after airdrop;

[0010] Figure 2 yes Figure 1 A partial enlarged view of the middle part;

[0011] Figure 3 is a schematic diagram of the structure of the present invention when the parachute 1 enters the water;

[0012] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0013] Figure 5 It is a schematic structural diagram of the inverted U-shaped lower traction seat 24 of the present invention after being separated from the inverted wine bottle-shaped connector 7;

[0014] Figure 6 yes Figure 5 A partial enlarged view of point C. DETAILED DESCRIPTION

[0015] The present invention is described in detail below in conjunction with the accompanying drawings:

[0016] A device for automatically separating a heavy object from a parachute after it is dropped into water by parachute, comprising a U-shaped upper traction seat 3 and an inverted U-shaped lower traction seat 24, wherein a parachute 1 is connected to a parachute connecting pin 2 arranged on the U-shaped upper traction seat 3, a drooping heavy object 26 is hung on a drooping heavy object hanging pin 25 arranged on the inverted U-shaped lower traction seat 24, a central screw hole 4 is arranged on the bottom plate of the U-shaped upper traction seat 3, and an inverted U-shaped lower traction seat central through hole 3 is arranged on the top plate of the inverted U-shaped lower traction seat 24. 3, an inverted wine bottle-shaped connector 7 is arranged between the U-shaped upper traction seat 3 and the inverted U-shaped lower traction seat 24, a bottle bottom center through hole 8 is arranged on the bottle bottom surface of the inverted wine bottle-shaped connector 7, a central support rod 5 with an inverted T-shaped longitudinal section is movably arranged on the upper part of the inner cavity of the inverted wine bottle-shaped connector 7, and a piston block 10 with an I-shaped longitudinal section is movably arranged on the lower part of the inner cavity of the inverted wine bottle-shaped connector 7, and the top end of the inverted T-shaped central support rod 5 passes through the bottle bottom center through hole 8 and is connected to the U-shaped upper The central screw hole 4 set on the bottom plate of the traction seat 3 is screwed together, and a compression spring 6 is set between the upper top surface of the cylindrical base of the central support rod 5 and the bottle bottom surface of the inverted wine bottle-shaped connector 7. The cylindrical base of the central support rod 5 is connected to the top surface of the upper large cylinder 11 of the I-shaped piston block 10; the contraction nozzle 21 of the inverted wine bottle-shaped connector 7 is movably inserted in the central through hole 33 of the inverted U-shaped lower traction seat 24, and the inner cavity side of the central through hole 33 of the inverted U-shaped lower traction seat A steel ball falling annular groove 19 is arranged on the wall, a steel ball limiting arc surface 22 is arranged on the top surface of the steel ball falling annular groove 19, steel ball limiting groove holes 34 are arranged at intervals on the side wall of the narrow mouth of the contraction narrow mouth 21, and a lower small cylinder 18 of an I-shaped piston block 10 is arranged in the contraction narrow mouth 21. The lower small cylinder 18 is arranged on the inner side opening of the steel ball limiting groove hole 34, and a limiting steel ball 20 is clamped between the steel ball limiting groove hole 34 and the steel ball limiting arc surface 22.

[0017] A horizontal annular step 27 is provided on the side of the inner cavity of the inverted wine bottle-shaped connector 7. The inner cavity of the inverted wine bottle-shaped connector 7 above the horizontal annular step 27 has a small diameter, and the inner cavity of the inverted wine bottle-shaped connector 7 below the horizontal annular step 27 has a large diameter; a cylindrical groove 9 is provided on the lower bottom surface of the cylindrical base of the central support rod 5, and an annular step 16 is provided on the upper large cylinder 11 of the I-shaped piston block 10. The central support rod 5 is movably sleeved on the annular step 16 provided on the upper large cylinder 11 through the cylindrical groove 9. A pin mounting through hole 12 with a large belly and a small mouth is provided on the upper step cylinder of the upper large cylinder 11, and a pin thrust spring 13 is provided in the small belly and a large mouth pin mounting through hole 12. A left pin 14 is connected to one end of the pin thrust spring 13, and a right pin 15 is connected to the other end of the pin thrust spring 13. The outer ends of the left pin 14 and the right pin 15 are both connected to the inner side surface of the cylindrical groove 9. A support spring 17 of the center support rod 5 is provided between the lower bottom surface of the upper large cylinder 11 and the step surface of the upper inner cavity of the contraction fine nozzle 21.

[0018] The inverted wine bottle-shaped connector 7 is composed of an upper cylindrical bottle body and a lower bottle body with a contracted narrow mouth 21 screwed together through a thread 23; this structure is convenient for assembling the entire mechanism.

[0019] When the drooping weight 26 is dropped from the aircraft, as the parachute 1 opens, the opened parachute 1 generates an upward traction force on the U-shaped upper traction seat 3, which pulls the central support rod 5 upward, and the cylindrical base of the central support rod 5 moves upward to compress the compression spring 6.

[0020] The top surface 28 of the annular step 16 provided on the upper large cylinder 11 of the I-shaped piston block 10 is connected to the lower step surface of the horizontal annular step 27 provided on the side surface of the inner cavity of the inverted wine bottle-shaped connector 7. The horizontal annular step 27 serves as a top contact limiter for the I-shaped piston block 10. The cylindrical base of the central support rod 5 moves upward without causing the I-shaped piston block 10 to move upward as well. This forms the upper large cylinder 11 of the I-shaped piston block 10 to move up and down relative to the inner cavity side wall of the cylindrical groove 9, causing the top of the left pin 14 and the top of the right pin 15 to slide downward along the inner cavity side wall of the cylindrical groove 9. After sliding out of the cylindrical groove 9, the left pin 14 and the right pin 15 are ejected at their tips under the thrust of the pin thrust spring 13, and then they are connected to the bottom surface of the lower end of the center support rod 5, forming a limit for the center support rod 5 on the I-shaped piston block 10, so that the U-shaped upper traction seat 3, the center support rod 5 and the I-shaped piston block 10 are connected together without any upward and downward movement between them, thereby forming an annular gap 31 between the top surface of the upper large cylinder 11 of the I-shaped piston block 10 and the top ends of the left pin 14 and the right pin 15, and forming a gap 29 between the top end surface of the inverted wine bottle-shaped connector 7 and the bottom annular surface 30 of the U-shaped upper traction seat 3. When the parachute 1 enters the water, the upward traction force generated by the parachute 1 on the U-shaped upper traction seat 3 disappears, and the compression spring 6 will push the entire shell of the inverted wine bottle-shaped connector 7 to move upward. As the entire shell moves upward, the lower step of the horizontal annular step 27 faces the limit of the step top surface 28 on the annular step 16 set on the large cylinder 11. The support spring 17 will move the I-shaped piston block 10 and the central support rod 5 thereon upward for a distance, but the return distance is limited, and the second annular gap 32 is finally formed. The second annular gap 32 is smaller than the annular gap 31; the entire inverted wine bottle-shaped connector 7 is relatively During the upward movement of the central support rod 5, that is, the upward movement of the entire inverted wine bottle-shaped connector 7 relative to the I-shaped piston block 10, the lower small cylinder 18 of the I-shaped piston block 10 provided in the contraction nozzle 21 moves downward away from the inner opening of the steel ball limiting groove hole 34, thereby releasing the limit on the limiting steel ball 20, allowing the limiting steel ball 20 to enter the contraction nozzle 21, and then contact the limit of the steel ball limiting arc surface 22 on the inverted U-shaped lower traction seat 24 by the limiting steel ball 20, so that the inverted U-shaped lower traction seat 24 is separated from the inverted wine bottle-shaped connector 7, thereby achieving the purpose of separating the drooping weight 26 from the parachute 1.

Claims

1. A device for automatically separating a heavy object from a parachute after it is dropped into water by parachute, comprising a U-shaped upper traction seat (3) and an inverted U-shaped lower traction seat (24), wherein a parachute (1) is connected to a parachute connecting pin (2) arranged on the U-shaped upper traction seat (3), a drooping heavy object (26) is suspended on a drooping heavy object hanging pin (25) arranged on the inverted U-shaped lower traction seat (24), a central screw hole (4) is arranged on the bottom plate of the U-shaped upper traction seat (3), and an inverted U-shaped lower traction seat central through hole (33) is arranged on the top plate of the inverted U-shaped lower traction seat (24), characterized in that: An inverted wine bottle-shaped connector (7) is arranged between the U-shaped upper traction seat (3) and the inverted U-shaped lower traction seat (24). A bottle bottom surface center through hole (8) is arranged on the bottle bottom surface of the inverted wine bottle-shaped connector (7). A central support rod (5) with an inverted T-shaped longitudinal section is movably arranged on the upper part of the inner cavity of the inverted wine bottle-shaped connector (7). A piston block (10) with an I-shaped longitudinal section is movably arranged on the lower part of the inner cavity of the inverted wine bottle-shaped connector (7). The top end of the inverted T-shaped central support rod (5) passes through the bottle bottom surface center through hole (8) and is screwed together with a central screw hole (4) arranged on the bottom plate of the U-shaped upper traction seat (3). A compression spring (6) is arranged between the two ends of the central support rod (5); the cylindrical base of the central support rod (5) is connected to the top surface of the upper large cylinder (11) of the I-shaped piston block (10); the shrinking fine mouth (21) of the inverted wine bottle-shaped connector (7) is movably plugged into the central through hole (33) of the inverted U-shaped lower traction seat (24); a steel ball falling annular groove (19) is arranged on the inner cavity side wall of the central through hole (33) of the inverted U-shaped lower traction seat; a steel ball limiting arc surface (22) is arranged on the top surface of the steel ball falling annular groove (19); steel ball limiting groove holes (34) are arranged at intervals on the side wall of the narrow mouth of the shrinking fine mouth (21); a lower small cylinder (18) of the I-shaped piston block (10) is arranged in the shrinking fine mouth (21); and the lower small cylinder (18) of the I-shaped piston block (10) is arranged in the shrinking fine mouth (21). The column (18) is arranged on the inner opening of the steel ball limiting groove hole (34), and the limiting steel ball (20) is clamped between the steel ball limiting groove hole (34) and the steel ball limiting arc surface (22); a horizontal annular step (27) is arranged on the side surface of the inner cavity of the inverted wine bottle-shaped connector (7), the inner cavity of the inverted wine bottle-shaped connector (7) above the horizontal annular step (27) has a small diameter, and the inner cavity of the inverted wine bottle-shaped connector (7) below the horizontal annular step (27) has a large diameter; a cylindrical groove (9) is arranged on the lower bottom surface of the cylindrical base of the central support rod (5), and an annular step (16) is arranged on the upper large cylinder (11) of the I-shaped piston block (10), and the central support rod (5) passes through the cylindrical The groove (9) is movably sleeved on an annular step (16) provided on the upper large cylindrical body (11), and a large-mouthed small pin mounting through hole (12) is provided on the upper step cylinder of the upper large cylindrical body (11), and a pin thrust spring (13) is provided in the large-mouthed small pin mounting through hole (12), and a left pin (14) is connected to one end of the pin thrust spring (13), and a right pin (15) is connected to the other end of the pin thrust spring (13), and the outer ends of the left pin (14) and the right pin (15) are both connected to the inner side surface of the cylindrical groove (9), and a support spring (17) of the central support rod (5) is provided between the lower bottom surface of the upper large cylindrical body (11) and the step surface of the upper end inner cavity of the contraction fine mouth (21).

2. The device for automatically separating a heavy object from a parachute after it is dropped into water by a parachute according to claim 1, characterized in that: The inverted wine bottle-shaped connector (7) is composed of an upper cylindrical bottle body and a lower bottle body with a contracted narrow mouth (21) screwed together through a thread (23).

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