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CN-121977002-A - Quick locking and releasing device under floating state

CN121977002ACN 121977002 ACN121977002 ACN 121977002ACN-121977002-A

Abstract

The invention relates to a quick locking and releasing device in a floating state, which belongs to the technical field of unmanned aerial vehicles and comprises a bidirectional oil cylinder, wherein an equivalent piston is slidably arranged in the bidirectional oil cylinder, a reset energy release spring is arranged at the lower end of the equivalent piston, the interior of the bidirectional oil cylinder is divided into an upper cavity and a lower cavity by the equivalent piston, an oil storage tank is communicated with the two cavities, a locking and releasing rod is fixedly arranged at the upper end of the equivalent piston, a plug hole is formed in the equivalent piston, a plug rod is slidably inserted in the plug hole, a floating locking valve is fixedly arranged at the end of the plug rod, a retainer is fixedly arranged at the upper end of the bidirectional oil cylinder, two movable holes are formed in the retainer, a stop ball is arranged in the movable holes, the upper end of the locking and releasing rod is slidably inserted in the retainer, a rack is sleeved outside the retainer, an outside locking groove is arranged at the inner side of the rack, and an inside locking groove is arranged at the outer side of the upper end of the locking and releasing rod, and the problems that the current non-initiating explosive device unlocking and releasing and separating device is long in separation response time, incomplete in release and needs an external power source are solved.

Inventors

  • Ren Lizhang
  • HAO FEI
  • YIN BORAN
  • Duan Yueru
  • WANG PEIYI
  • GUO HUALING

Assignees

  • 山西通用航空集团有限公司
  • 中北大学

Dates

Publication Date
20260505
Application Date
20260119

Claims (9)

  1. 1. A quick locking and releasing device in a floating state is characterized by comprising a bidirectional oil cylinder (2), an oil storage tank (4) and a frame (8), wherein an equivalent piston (12) is arranged in the bidirectional oil cylinder (2) in a sliding mode, a reset energy releasing spring (14) is arranged on the lower end face of the equivalent piston (12), the equivalent piston (12) divides the inside of the bidirectional oil cylinder (2) into an upper cavity (16) and a lower cavity (17), the oil storage tank (4) is respectively communicated with the upper cavity (16) and the lower cavity (17) through oil pipelines, a locking and releasing rod (10) is fixedly arranged at the upper end of the equivalent piston (12), the upper end of the locking and releasing rod (10) extends to the outer side of the upper end of the bidirectional oil cylinder (2), a plurality of plug holes with two ends being communicated are arranged on the equivalent piston (12), a plug rod is respectively arranged in each plug hole in a sliding mode, one end of the plug rod, which is located in the lower cavity (17), a floating locking valve (13) is fixedly arranged at the upper end of the bidirectional oil cylinder (2), a retainer (7) is fixedly arranged at the upper end of the bidirectional oil cylinder (7), a retainer (7) is fixedly arranged at the inner end of the retainer (7), a plurality of plug holes which are respectively connected with the plug holes at two ends of the plug holes (7) in a sliding mode, the plug hole is fixedly arranged at the plug hole, and the plug hole is fixedly arranged at the plug end, and the plug rod. The inner side surface of the frame (8) is provided with a circle of outer locking grooves, and the outer side of the upper end of the locking release rod (10) is provided with a circle of inner locking grooves.
  2. 2. The quick locking and releasing device in the floating state according to claim 1 is characterized in that an upper end cover (6) and a lower end cover (1) are fixedly arranged at openings at the upper end and the lower end of a bidirectional oil cylinder (2), a first through hole is formed in the center of the upper end cover (6), a locking and releasing rod (10) is slidably inserted into the first through hole in the center of the upper end cover (6), a positioning bolt (15) is fixedly arranged in the center of the lower end cover (1), and the upper end of the positioning bolt (15) extends into a lower cavity (17) of the bidirectional oil cylinder (2).
  3. 3. The quick lock release device in a floating state according to claim 1, wherein a guide sleeve (11) is fixedly arranged at an opening of one end of each plug hole close to the upper cavity (16), and the plug rod in each plug hole is slidably inserted into the corresponding guide sleeve (11).
  4. 4. The quick locking and releasing device in a floating state according to claim 1 is characterized in that an outward-expanding closed groove is formed in an opening of one end, close to a lower side cavity (17), of the plug hole, an inner wall of the closed groove is a sealing inner conical surface with a thin upper part and a thick lower part, the floating locking valve (13) is of a circular plate-shaped structure which is horizontally arranged, and an outer side face of the floating locking valve (13) is a sealing outer conical surface with a thin upper part and a thick lower part.
  5. 5. The quick lock release device in a floating state according to claim 2, wherein the reset energy release spring (14) is kept vertical, the upper end of the reset energy release spring (14) is connected with the lower end face of the equivalent piston (12), the lower end of the reset energy release spring (14) is sleeved outside the positioning bolt (15), and the lower end of the reset energy release spring (14) is connected with the upper end face of the lower end cover (1).
  6. 6. The quick lock release device in a floating state according to claim 2, wherein the retainer (7) comprises a fixing plate and a fixing cylinder, a second through hole penetrating up and down is formed in the center of the fixing plate, the fixing plate is fixedly arranged at the upper end of the upper end cover (6), the second through hole on the fixing plate corresponds to the first through hole of the upper end cover (6), and the fixing cylinder is fixedly arranged at the upper end of the second through hole of the fixing plate.
  7. 7. A quick lock release device in a floating state according to claim 6, wherein the lock release lever (10) is slidably inserted into the second through hole of the fixing plate and the inside of the fixing cylinder.
  8. 8. The quick lock release device in a floating state according to claim 6, wherein the frame (8) comprises an action plate, an action cylinder and an action rod, wherein a vertical action rod is fixedly arranged at the center of the lower end face of the action plate, the action rod is positioned above the lock release rod (10), and the action cylinder is fixedly arranged at the lower end face of the action plate.
  9. 9. The quick lock release device in a floating state according to claim 8, wherein the acting cylinder is of a cylindrical structure with openings at the upper end and the lower end, the opening at the upper end of the acting cylinder is fixedly connected with the lower end face of the acting plate, the opening at the lower end of the acting cylinder is sleeved on the outer side of the fixed cylinder of the retainer (7) in a sliding manner, and a circle of outer locking grooves are formed in the inner side face of the acting cylinder.

Description

Quick locking and releasing device under floating state Technical Field The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a rapid locking and releasing device in a floating state. Background The primary and secondary unmanned aerial vehicle system is carried by the primary aircraft and released after the secondary aircraft is transported to the target area, so that the task radius and flexibility of the unmanned aerial vehicle can be expanded, and the overall combat efficiency and the survivability are remarkably improved. One of the key core technologies of such a system is an unlocking device for reliable connection and disconnection between a child machine and a parent machine. Its performance is directly related to the success or failure of the entire task. Currently, unlocking and separating devices are mainly divided into initiating explosive devices and non-initiating explosive devices. The initiating explosive device generates high-temperature and high-pressure gas through gunpowder detonation, has the advantages of high bearing capacity, rapid and reliable separation action, good synchronism and the like as direct power for realizing separation, and has the defects of high cost, large separation impact force, production of pollutants harmful to equipment, unrepeatable use and the like. It is difficult to apply on a primary and secondary unmanned aerial vehicle platform that is sensitive to shock. Common initiating explosive devices include explosive bolts, split nuts, split push rods and the like. Aiming at a series of defects of the initiating explosive device, the non-initiating explosive device unlocking and separating device is generated, and the device has the advantages of repeated use, small impact force in the actuating process, no pollution and the like. The specific implementation forms of the current non-initiating explosive device unlocking and separating device are various, and the specific implementation forms comprise electromagnetic driving, motor driving, hot knife driving, fuse driving, paraffin driving, shape Memory Alloy (SMA) driving and the like. The shape memory alloy driving device has the following defects that the shape memory alloy driving device needs preheating in advance, the separation response time is long, the sub-machine can not be completely separated and is not completely released due to residual magnetism or structural adhesion when the electromagnetic lock is released in a power-off mode, and the traditional hydraulic or pneumatic releasing device needs an external power source, so that the complexity and the weight of the system are increased. Disclosure of Invention The invention overcomes the defects of the prior art, provides a rapid locking and releasing device in a floating state, and solves the problems of long separation response time, incomplete release and need of an external power source of the conventional non-initiating explosive device unlocking and separating device. In order to achieve the above purpose, the present invention is realized by the following technical scheme. A quick locking and releasing device in a floating state comprises a bidirectional oil cylinder, an oil storage tank and a frame, wherein an equivalent piston is slidably arranged in the bidirectional oil cylinder, a reset energy releasing spring is arranged on the lower end face of the equivalent piston, the equivalent piston divides the inside of the bidirectional oil cylinder into an upper side cavity and a lower side cavity, the oil storage tank is respectively communicated with the upper side cavity and the lower side cavity through oil conveying pipelines, a locking and releasing rod is fixedly arranged at the upper end of the equivalent piston, the upper end of the locking and releasing rod extends to the outer side of the upper end of the bidirectional oil cylinder, a plurality of inserting holes with two ends being communicated are formed in the equivalent piston, an inserting rod is slidably arranged in each inserting hole, a floating locking valve is fixedly arranged at one end of each inserting rod, which is located in the lower side cavity, a retainer is fixedly arranged at the upper end of the bidirectional oil cylinder, two movable holes are respectively arranged in each movable hole, the upper end of the retainer is slidably inserted into the retainer, the outer side of the retainer is slidably sleeved with the frame, a circle of outer locking groove is formed in the inner side of the frame, and a circle of inner locking groove is formed in the outer side of the upper end of the locking and releasing rod. Further, an upper end cover and a lower end cover are respectively and fixedly arranged at the openings at the upper end and the lower end of the bidirectional oil cylinder, a first through hole is arranged at the center of the upper end cover, a locking release rod is inserted into the first through hole at t