CN116729627B - Air-drop lock and working method thereof - Google Patents
Air-drop lock and working method thereof Download PDFInfo
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- CN116729627B CN116729627B CN202311016148.XA CN202311016148A CN116729627B CN 116729627 B CN116729627 B CN 116729627B CN 202311016148 A CN202311016148 A CN 202311016148A CN 116729627 B CN116729627 B CN 116729627B
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- 230000007246 mechanism Effects 0.000 claims description 40
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- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 230000010365 information processing Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/02—Dropping, ejecting, or releasing articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D9/00—Equipment for handling freight; Equipment for facilitating passenger embarkation or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/25—Fixed-wing aircraft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
- B64U2101/60—UAVs specially adapted for particular uses or applications for transporting passengers; for transporting goods other than weapons
- B64U2101/69—UAVs specially adapted for particular uses or applications for transporting passengers; for transporting goods other than weapons the UAVs provided with means for airdropping goods, e.g. deploying a parachute during descent
Abstract
The invention relates to the technical field of air drop locks and discloses an air drop lock and a working method thereof. The invention solves the problems of large load bearing load, heavy weight and the like in the prior art.
Description
Technical Field
The invention relates to the technical field of air drop locks, in particular to an air drop lock and a working method thereof.
Background
The large and medium-sized fixed wing unmanned aerial vehicle has the advantages of intellectualization, low cost, rapid deployment and the like, and has been rapidly developed and widely applied in the fields of rescue and relief work, material supply, military training and the like in recent years.
The pallet of the fixed wing unmanned aerial vehicle cargo space system generally needs a track and an electric control lock to limit the freedom degrees of the pallet in 6 directions, vertical movement and lateral movement are limited by virtue of double-row side guide rails, a forward limiting device is arranged in front of the aircraft, an air drop lock is arranged between each pallet, the effect of the air drop lock is to limit the freedom degrees of pallet heading, and the pallet is reliably fixed during air transport. The air drop lock generally has two mounting modes, one is mounted on the cargo hold floor, the mode has certain requirements on the height from the bottom surface of the pallet to the floor surface, the other is mounted on the side surface of the side guide rail, the air drop lock occupies side space, and the requirement of maximum loading capacity is not met by the minimum width dimension of the cargo hold of the unmanned aerial vehicle.
The existing floor air drop lock scheme adopts a connecting rod sliding block mechanism, self-locking can be formed on the mechanism, and the floor is required to sink a step due to the fact that the floor air drop lock scheme is limited by a mechanism principle and occupies too much space in the height direction. Still another is a single axis hinge and linear actuator mechanism, the linear actuator directly driving the actuator arm. The actuator is loaded greatly in the mode, and the requirement on the reliability of the linear actuator is high. The last is by way of a gear train transmission and a single axis hinge, which is heavy, low in reliability and inconvenient in maintenance.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an air drop lock and a working method thereof, and solves the problems of high load, heavy weight, low utilization rate of high space and the like in the prior art.
The invention solves the problems by adopting the following technical scheme:
the utility model provides an air drop lock, air drop lock includes front limit mechanism, back limit mechanism, casing, torsional spring axle, and the casing is used for installing on cargo hold floor plane in order to bear the load when the cargo lock, and the inside accommodation space that has of casing, front limit mechanism bottom, back limit mechanism bottom are installed in the accommodation space of casing side by side, and front limit mechanism bottom includes front limit arm, back limit mechanism includes back limit arm, and front limit arm and back limit arm share torsional spring axle as the axis of rotation.
As a preferable technical scheme, the front-voyage limiting mechanism further comprises a first torsion spring, a front-voyage locking shaft, a V-shaped piece shaft and a front-voyage linear actuator; the front limiting arm is connected with a first torsion spring, one end of the first torsion spring is fixed on a torsion spring shaft, the other end of the first torsion spring is fixed on the front limiting arm, the V-shaped piece is sleeved on the V-shaped piece shaft, the front locking shaft is connected with the front limiting arm, and the front linear actuator is arranged on the shell; the V-shaped piece comprises a middle shaft, a first support arm and a second support arm, wherein the first support arm and the second support arm are respectively connected with the middle shaft, and an included angle between the first support arm and the second support arm is an acute angle.
As an optimized technical scheme, the first support arm is provided with a front-of-flight manual deflector rod, the shell is provided with a first limiting groove, and the front-of-flight manual deflector rod can move in the first limiting groove.
As a preferred technical scheme, the post-navigation limiting mechanism further comprises a second torsion spring, a post-navigation locking shaft, a first L-shaped piece shaft, a second L-shaped piece shaft and a post-navigation linear actuator, wherein the post-navigation limiting arm is connected with the torsion spring shaft, one end of the second torsion spring is fixed on the torsion spring shaft, the other end of the second torsion spring is fixed on the post-navigation limiting arm, the first L-shaped piece is rotationally connected with the shell through the first L-shaped piece shaft, the second L-shaped piece is rotationally connected with the shell through the second L-shaped piece shaft, the first L-shaped piece is connected with the post-navigation locking shaft, and the post-navigation linear actuator is arranged on the shell.
As an optimized technical scheme, the second L-shaped piece is provided with a post-navigation manual deflector rod, the shell is provided with a second limit groove, and the post-navigation manual deflector rod is matched with the second limit groove to limit the rotation angle of the second L-shaped piece in the shell.
As a preferable technical scheme, the device further comprises an electric control box, wherein the electric control box can receive the air drop signal and control the unlocking front navigation limiting arm and the unlocking rear navigation limiting arm to rotate around the torsion spring shaft.
The use method of the air drop lock is that the V-shaped piece is contacted with the front locking shaft to form locking when the front limiting arm is lifted; when the air drop is unlocked, the front-of-plane linear actuator drives the V-shaped piece to rotate around the V-shaped piece shaft, so that the V-shaped piece is separated from the front-of-plane locking shaft.
The use method of the air drop lock is characterized in that when the front air drop lock is needed to be unlocked, the front air manual deflector rod moves in the first limiting groove.
The use method of the air drop lock comprises the steps that when the post-flight limiting arm is lifted, a first L-shaped piece is fixedly connected in a housing accommodating space through a first L-shaped piece shaft, and a second L-shaped piece is fixedly connected in the housing accommodating space through a second L-shaped piece shaft, so that locking is formed; when the lock is unlocked, the first L-shaped piece rotates around the post-navigation locking shaft, and the post-navigation linear actuator actuates to push the second L-shaped piece to rotate around the post-navigation locking shaft, so that the lock between the second L-shaped piece and the post-navigation locking shaft is released.
The use method of the air drop lock is characterized in that when the air drop lock is used for unlocking the post-flight limiting arm, the post-flight manual deflector rod is matched with the second limiting groove to limit the rotation angle of the second L-shaped piece in the shell.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention has the advantages of high integration level and light weight.
(2) The invention can realize manual locking and unlocking, has the functions of electric control unlocking, signal detection feedback and state indication;
(3) The invention has small size in the vertical direction, saves space by utilizing the height size of the rolling rod and the cargo space floor, and maximizes the utilization rate of the cargo space;
(4) According to the unmanned plane leveling and weight center of gravity measurement, single-piece air drop and multiple continuous air drops can be realized;
(5) The air drop lock has small operating force and actuating force and large bearing load;
drawings
FIG. 1 is a schematic diagram of the structure of an air lock;
FIG. 2 is an exploded view of the air lock structure of the present invention;
FIG. 3 is one of the partial enlarged views of FIG. 2;
FIG. 4 is a second enlarged view of a portion of FIG. 2;
FIG. 5 is a third enlarged view of a portion of FIG. 2;
FIG. 6 is a schematic view of an unlocked state of the forward limit mechanism;
FIG. 7 is a schematic view of the forward limit mechanism in a raised condition;
FIG. 8 is a schematic diagram of manual unlocking;
FIG. 9 is a view of the post-flight restraint mechanism in a raised condition;
FIG. 10 is a view of an unlocked state of the post-flight restraint mechanism;
FIG. 11 is a block diagram of an electronic control box;
FIG. 12 is one of the schematic diagrams of the air drop process;
FIG. 13 is a second schematic diagram of an air drop process;
FIG. 14 is a third schematic illustration of the airdrop process.
The reference numerals in the drawings and their corresponding names: 1-front-voyage limiting mechanism, 2-rear-voyage limiting mechanism, 3-shell, 4-torsion spring shaft, 5-shell cover, 6-electric control box, 7-air drop control system, 8-proximity sensor, 9-state indicator, 11-front-voyage limiting arm, 12-first torsion spring, 13-front-voyage locking shaft, 14-first bearing, 15-first jump ring, 16-V piece, 17-V piece shaft, 18-first tension spring, 19-front-voyage linear actuator, 111-first bolt shaft, 112-front-voyage manual deflector rod, 113-first limiting groove, 161-intermediate shaft, 162-first support arm, 163-second support arm, 164-locking end, 21-rear-limiting arm, 22-second torsion spring, 23-rear-voyage locking shaft, 24-second bearing, 25-second snap spring, 26-first L-shaped piece, 27-first L-shaped piece axle, 28-second L-shaped piece, 29-second L-shaped piece axle, 204-first L-shaped piece axle screw, 205-post-voyage linear actuator mounting piece, 206-polished rod screw, 207-roller, 208-disengaging angle, 209-first limit post, 210-second tension spring, 211-third tension spring, 212-post-voyage linear actuator, 213-second limit post, 214-post-voyage manual deflector, 215-third tension spring mounting axle, 216-second limit slot, 100-torsion spring axle set screw, 31-mounting interface, 301-inclined plane, 51-shell cover screw, 61-circuit board, 62-connector.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
Example 1
As shown in fig. 1 to 14, the invention provides a high-reliability fixed wing unmanned aerial vehicle air drop lock.
1. Briefly described:
the air drop lock has the functions of detecting the position of the limiting arm and automatically unlocking, can realize the limiting of the pallet in the two directions before and after the sailing, can effectively solve the problem of cargo air transportation, and can meet the requirement of cargo air drop. The mechanism of the device has a self-locking function, the reliability of an actuator is not affected by cargo load change, the cargo carrying capacity of the unmanned aerial vehicle can be effectively improved, the device has the advantages of small size, light weight, strong carrying capacity and the like, and the air drop lock is arranged on the cargo compartment floor and aims to solve the problems of space utilization rate of the cargo compartment of the tail air drop unmanned aerial vehicle, reliability of an air drop lock mechanism, detection of an air drop lock state and the like.
2. Basic principle:
the front end of the cargo hold is provided with a mechanically-positioned forward-flight limiting device, the air drop lock is arranged on the floor of the cargo hold, and the air drop lock has forward-flight limiting and rear-flight limiting functions.
Principle of forward limiting: the front-end limiting arm 11 rotates around the torsion spring shaft 4 in a certain range, and transfers the cargo load to the bearing part of the inclined plane 301 of the shell 3. The V-shaped piece 16 and the locking end 164 are used for locking the front locking shaft 13 at the lower end of the front limiting arm 11, and the unlocking of the front limiting arm 11 can be realized by using smaller actuating force.
Post-flight restraint principle: the post-flight limiting arm 21 rotates around the torsion spring shaft 4 in a certain range to transfer the load of the goods to the first L-shaped piece 26 and the first L-shaped piece shaft 27, and mainly the post-flight locking shaft 23 at the tail ends of the short support arms of the second L-shaped piece 28 and the first L-shaped piece 26 is used for locking. The second L-shaped member 28 long arm is driven by the post-flight linear actuator 212 to unlock. In order to facilitate timely detachment of the post-flight limiting arm 21 during unlocking, a detachment angle 208 is provided, and the detachment angle 208 enables the first L-shaped piece 26 to generate a moment on the first L-shaped piece shaft 27 when being stressed, so that the long support arm of the first L-shaped piece 26 is convenient to detach from the post-flight limiting arm 21. The disengaging angle 208, shown in fig. 9, provides a counterclockwise torque about the first L-shaped member axis 27 of the first L-shaped member 26 when loaded, which torque is convenient for unlocking.
3. The scheme is as follows:
the air drop lock comprises a front limit mechanism 1, a rear limit mechanism 2, a shell 3, a shell cover 5 and an electric control box 6. The housing 3 is mounted on the cargo compartment floor plane. The device is mainly used for bearing the load of cargo locking, and the shell 3 is internally provided with an accommodating space for installing the front limit mechanism 1 and the rear limit mechanism 2. The front and rear limiting mechanisms 1 and 2 are arranged in parallel in the left and right sides of the shell 3, and share a torsion spring shaft 4 as a rotation shaft. The electric control box 6 is arranged in the front direction of the shell 3 and can receive the air drop signal of the air drop control system 7 to control and unlock the front limiting arm 11 and the rear limiting arm 21. The signals of the proximity sensor 8 and the status indicator lamp 9 are realized by the information processing of the electronic control box 6. The housing 3 is provided with a mounting interface 31. As shown in fig. 1 to 5.
(1) Front limit mechanism 1
The front limiting mechanism 1 is composed of a front limiting arm 11, a torsion spring shaft 4, a first torsion spring 12, a front locking shaft 13, a first bearing 14, a first clamping spring 15, a V-shaped piece 16, a V-shaped piece shaft 17, a first tension spring 18, a front linear actuator 19 and the like (fig. 3), and is connected in a mode that the front limiting arm 11 is fixed on the torsion spring shaft 4 through two screws (torsion spring shaft fixing screws 100), one end of the first torsion spring 12 is fixed on the torsion spring shaft 4, and the other end of the first torsion spring 12 is fixed on the front limiting arm 11. So that the front limit arm 11 has a torsion force to return to the horizontal state. V-piece 16 includes an intermediate shaft 161, a first arm 162, and a second arm 163.
The V-shaped piece 16 is fixed on the housing 3 by a V-shaped piece shaft 17 (a polished rod bolt), the front limiting arm 11 can rotate around the torsion spring shaft 4, and the front limiting arm 11 is in a fallen state in both an initial state and after air drop. The front voyage limiting arm 11 is locked, and the front voyage limiting arm 11 needs to be manually pulled to reach the locking position against torsion force of the torsion spring.
When the forward limiting arm 11 is raised, the locking end of the V16 contacts the forward locking shaft 13, forming a lock. The purpose of the front lock shaft 13 plus bearings is to reduce unlocking friction. When the air drop is unlocked, the front-of-ship linear actuator 19 overcomes the tension of the two first tension springs 18 to drive the long support arm (the first support arm 162) of the V-shaped piece 16, and the V-shaped piece 16 rotates around the V-shaped piece shaft 17, so that the locking end of the V-shaped piece 16 is separated from the front-of-ship locking shaft 13. So that the front limiting arm 11 falls down horizontally under the torsion force of the first torsion spring 12 as shown in fig. 6.
Further analysis of the stress of the front limiting mechanism 1, when the front limiting arm 11 is lifted, the pallet generates a moment on the front limiting arm 11, the torsion spring shaft 4 and the inclined plane of the shell 3 form a lever, and the load of the pallet is transmitted to the inclined plane of the shell 3.
Fixed points for connecting the first tension springs 18 are arranged on the left side and the right side of the long support arm end of the V-shaped piece 16, one end of each first tension spring 18 is arranged on the fixed point, the other end of each first tension spring 18 is arranged on the first bolt shaft 111, and the first bolt shaft 111 is connected with the shell 3 through threads. When the forward limiting arm 11 is raised. The two first tension springs 18 have a certain pretension. So that the short leg (second leg 163) of the V16 can bear against the front lock shaft 13. So that the forward limiting arm 11 does not fall down horizontally under the force of the torsion spring. Preferably, the longer the long support arm is a driving end, the longer the same straight line is used as power, and the longer the arm of force is, the larger the driving moment is; the short support arm is used for locking, does not need to be long, and also has the design structure under the condition that the internal accommodating space can be arranged.
The long arm of the V-shaped member 16 is further provided with a forward-looking manual lever 112, and the forward-looking manual lever 112 is movable in a corresponding first limit groove 113 of the housing 3. In the locked position state, the front-voyage manual deflector 112 is arranged on the left side of the first limiting groove 113, and when the front-voyage manual deflector 112 is unlocked, the front-voyage manual deflector 112 is arranged on the right side of the first limiting groove 113, and extends out of the shell 3, so that the ground loading and unloading can be performed, and the manual unlocking can be performed. As shown in fig. 7 and 8.
(2) Post-flight limiting mechanism 2
The post-flight limiting mechanism 2 is composed of a post-flight limiting arm 21, a torsion spring shaft 4, a second torsion spring 22, a post-flight locking shaft 23, a second bearing 24, a second clamp spring 25, a first L-shaped member 26, a first L-shaped member shaft 27 (with a first L-shaped member shaft screw 204), a second L-shaped member 28, a second L-shaped member shaft 29, a second tension spring 210, a third tension spring 211, a post-flight linear actuator 212, and the like, as shown in FIG. 9.
The connection mode is that the post-flight limiting arm 21 is fixed on the torsion spring shaft 4 through two screws (torsion spring shaft fixing screws 100), one end of the second torsion spring 22 is fixed on the torsion spring shaft 4, and the other end is fixed on the post-flight limiting arm 21. So that the post-flight limiting arm 21 has a torsion force to return to the horizontal state.
The first L-shaped piece 26 and the second L-shaped piece 28 are fixedly connected in the accommodating space of the shell 3 through the first L-shaped piece shaft 27 and the second L-shaped piece shaft 29, and the long support arm end of the first L-shaped piece 26 is connected with a polish rod screw 206 and a roller 207. The purpose of the roller 207 is to reduce friction between the first L-shaped member 26 and the post-flight limiting arm 21. The long and short arm ends of the first L-shaped member 26 (which facilitates torque conversion between the first L-shaped member 26 and the second L-shaped member 28, and also allows for internal installation space) connect the second clamp spring 25, the second bearing 24 and the post-steering lock shaft 23. A first stop post 209 is provided on one side of the first L-shaped member 26. The first limiting post 209 is matched with the limiting groove of the housing 3 to limit the rotation angle of the first L-shaped piece 26 in the housing 3. The long arm end of the first L-shaped member 26 also has a third tension spring mounting shaft 215.
The second L-shaped member 28 has a second limiting post 213 at one side, and the second limiting post 213 is matched with the limiting groove of the housing 3 to limit the rotation angle of the second L-shaped member 28 in the housing 3. Meanwhile, the other side of the second L-shaped member 28 is also provided with a post-navigation manual lever 214 and a third tension spring mounting shaft 215. The second L-shaped member 28 also has a post-flight manual lever 214, which is matched with the limit groove of the housing 3 to limit the rotation angle of the second L-shaped member 28 in the housing 3. For manual unlocking. The post-flight linear actuator 212 is fixed to the housing cover 5 by the post-flight linear actuator mounting member 205, and the housing cover 5 is fixed to the housing 3 by a screw (housing cover screw 51).
The second tension spring 210 is mounted on one side on the post-navigation lock shaft 23 and on the other side on the second L-shaped member shaft 29, and functions to provide a certain moment to the first L-shaped member 26 by means of the spring pretension when unlocking. So that the first L-shaped member 26 rotates around the post-navigation locking shaft 23. The actuation of the post-voyage linear actuator 212 needs to overcome the pulling force of the third tension spring 211 to push the long support arm end of the second L-shaped piece 28 to rotate the short support arm of the second L-shaped piece 28 around the post-voyage locking shaft 23, so that the locking between the short support arm end of the second L-shaped piece 28 and the post-voyage locking shaft 23 is released. The post-flight limiting arm 21 gives a certain moment to the first L-shaped member 26 through the set disengaging angle 208. Until the roller 207 at the long arm end of the first L-shaped member 26 is disengaged from the post-flight limiting arm 21, unlocking is achieved. The manual unlocking of the ground is achieved by manually pushing the manual lever, as shown in fig. 10.
Further analysis of the force applied by the post-flight limiting mechanism 2, when the post-flight limiting arm 21 is raised, the pallet generates a moment on the post-flight limiting arm 21, the torsion spring axle 4 and the first L-shaped member 26 form a lever, and most of the load of the pallet is transferred to the first L-shaped member axle 27 with less unlocking driving force.
(3) Electric control box 6
In the casing 3, two proximity sensors 8 are installed through threaded connection for detecting the state of the limiting arm, when the locking position, the protruding structure of limiting arm lower extreme just reaches proximity sensor 8 detection scope, and proximity sensor 8 detects that the limiting arm is in the state of rising, sends the signal to automatically controlled box 6, and after automatically controlled box 6 received the signal, control status indicator lamp 9 (state indicator lamp before the boat, state indicator lamp after the boat) colour is green long bright. When the pallet is loaded. An operator can judge whether the system works normally or not according to the state of the indicator lamp and the state of the limiting arm. When goods are thrown, the air throwing system carries out the limiting unlocking of all air throwing locks according to the instruction issued by the air throwing task and a certain time sequence. The proximity sensor 8 status indication is relied upon to determine whether the air drop process is normal, as shown in fig. 11. The electronic control box 6 is provided with a circuit board 61 and a connector 62.
The air-drop lock working flow comprises the following steps:
1. the first pallet is transported to the forefront of the cargo hold through the track system, the post-flight limiting arm 21 of the first air lock is manually cocked, a clear locking sound is heard, and then the states such as the state indication of the post-flight limiting arm 21 are checked.
2. The front limiting arm 11 of the first air lock is manually pulled up, a clear locking sound is heard, and then the states such as the state indication of the front limiting arm 11 are checked.
3. And continuing to load a second pallet (cargo), and repeating the steps until the unmanned aerial vehicle fills the cargo hold.
4. And the unmanned aerial vehicle takes off to execute the air-drop task, and when the unmanned aerial vehicle reaches a set air-drop area, the unmanned aerial vehicle generates a certain elevation angle, and the air-drop system issues the air-drop task.
5. The nth air drop lock at the tail of the cargo hold starts to unlock the rear flight limiting arm 21 (the last lock has no front flight limiting mechanism 1), and the corresponding pallet starts to slide out of the tail of the cargo hold.
6. When the nth lock is detected to be unlocked, the air drop system sends out an n-1 th air drop lock post-navigation limit unlocking instruction according to a set time interval, as shown in fig. 12 to 14.
And the like, until the first air drop lock at the front end of the cargo hold is unlocked, the air drop is completed.
As described above, the present invention can be preferably implemented.
All of the features disclosed in all of the embodiments of this specification, or all of the steps in any method or process disclosed implicitly, except for the mutually exclusive features and/or steps, may be combined and/or expanded and substituted in any way.
The foregoing description of the preferred embodiment of the invention is not intended to limit the invention in any way, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. The air drop lock is characterized by comprising a front limit mechanism (1), a rear limit mechanism (2), a shell (3) and a torsion spring shaft (4), wherein the shell (3) is used for being installed on the plane of a cargo compartment floor to bear load when cargo is locked, an accommodating space is formed in the shell (3), the bottom of the front limit mechanism (1) and the bottom of the rear limit mechanism (2) are installed in the accommodating space of the shell (3) in parallel, the bottom of the front limit mechanism (1) comprises a front limit arm (11) and the bottom of the rear limit mechanism (2) comprises a rear limit arm (21), and the front limit arm (11) and the rear limit arm (21) share the torsion spring shaft (4) as rotating shafts;
the front-of-ship limiting mechanism (1) further comprises a first torsion spring (12), a front-of-ship locking shaft (13), a V-shaped piece (16), a V-shaped piece shaft (17) and a front-of-ship linear actuator (19); the front limiting arm (11) is connected with the first torsion spring (12), one end of the first torsion spring (12) is fixed on the torsion spring shaft (4), the other end of the first torsion spring (12) is fixed on the front limiting arm (11), the V-shaped piece (16) is sleeved on the V-shaped piece shaft (17), the front locking shaft (13) is connected with the front limiting arm (11), and the front linear actuator (19) is arranged on the shell (3); the V-shaped piece (16) comprises an intermediate shaft (161), a first support arm (162) and a second support arm (163), wherein the first support arm (162) and the second support arm (163) are respectively connected with the intermediate shaft (161), and an included angle between the first support arm (162) and the second support arm (163) is an acute angle.
2. An air lock according to claim 1, characterized in that the first arm (162) is provided with a forward-looking manual lever (112), the housing (3) is provided with a first limit slot (113), and the forward-looking manual lever (112) is movable in the first limit slot (113).
3. An air lock according to claim 1, characterized in that the post-flight limiting mechanism (2) further comprises a second torsion spring (22), a post-flight locking shaft (23), a first L-shaped piece (26), a first L-shaped piece shaft (27), a second L-shaped piece (28), a second L-shaped piece shaft (29), a post-flight linear actuator (212), the post-flight limiting arm (21) is connected with the torsion spring shaft (4), one end of the second torsion spring (22) is fixed on the torsion spring shaft (4), the other end of the second torsion spring (22) is fixed on the post-flight limiting arm (21), the first L-shaped piece (26) is rotatably connected with the housing (3) through the first L-shaped piece shaft (27), the second L-shaped piece (28) is rotatably connected with the housing (3) through the second L-shaped piece shaft (29), the first L-shaped piece (26) is connected with the post-flight locking shaft (23), and the post-flight linear actuator (212) is arranged on the housing (3).
4. An air lock according to claim 3, wherein the second L-shaped member (28) is provided with a post-flight manual lever (214), the housing (3) is provided with a second limiting groove (216), and the post-flight manual lever (214) cooperates with the second limiting groove (216) to limit the rotation angle of the second L-shaped member (28) in the housing (3).
5. An air drop lock according to any one of claims 1 to 4, further comprising an electric control box (6), wherein the electric control box (6) can receive the air drop signal and control the unlocking front limit arm (11) and the rear limit arm (21) to rotate around the torsion spring shaft (4).
6. An air drop lock using method is characterized in that the air drop lock is adopted, when a front aviation limiting arm (11) is lifted, a V-shaped piece (16) is contacted with a front aviation locking shaft (13) to form locking; when the air-drop is unlocked, the front-of-plane linear actuator (19) drives the V-shaped piece (16) to rotate around the V-shaped piece shaft (17), so that the V-shaped piece (16) is separated from the front-of-plane locking shaft (13).
7. An air drop lock using method is characterized in that when the air drop lock is adopted and the front limit arm (11) needs to be unlocked, the front manual deflector rod (112) moves in the first limit groove (113).
8. The use method of the air drop lock is characterized in that when the air drop lock disclosed in claim 3 is adopted and the post-flight limiting arm (21) is lifted, the first L-shaped piece (26) is fixedly connected in the accommodating space of the shell (3) through the first L-shaped piece shaft (27), and the second L-shaped piece (28) is fixedly connected in the accommodating space of the shell (3) through the second L-shaped piece shaft (29) to form locking; when the lock is unlocked, the first L-shaped piece (26) rotates around the post-navigation locking shaft (23), and the post-navigation linear actuator (212) is actuated to push the second L-shaped piece (28) to rotate around the post-navigation locking shaft (23), so that the lock between the second L-shaped piece (28) and the post-navigation locking shaft (23) is released.
9. The method for using the air drop lock is characterized in that when the air drop lock is adopted and the post-voyage limiting arm (21) is required to be unlocked, the post-voyage manual deflector rod (214) is matched with the second limiting groove (216) to limit the rotation angle of the second L-shaped piece (28) in the shell (3).
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| CN202311016148.XA CN116729627B (en) | 2023-08-14 | 2023-08-14 | Air-drop lock and working method thereof |
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| CN202311016148.XA CN116729627B (en) | 2023-08-14 | 2023-08-14 | Air-drop lock and working method thereof |
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| CN116729627B true CN116729627B (en) | 2023-11-07 |
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| CN116729627A (en) | 2023-09-12 |
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