CN215436954U - Unmanned aerial vehicle canopy unlocking mechanism - Google Patents
Unmanned aerial vehicle canopy unlocking mechanism Download PDFInfo
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- CN215436954U CN215436954U CN202122396241.0U CN202122396241U CN215436954U CN 215436954 U CN215436954 U CN 215436954U CN 202122396241 U CN202122396241 U CN 202122396241U CN 215436954 U CN215436954 U CN 215436954U
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- unlocking mechanism
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Abstract
The utility model discloses an unmanned aerial vehicle canopy unlocking mechanism, which belongs to the technical field of aircrafts and comprises an unlocking mechanism main body and a plurality of driving steering engines, wherein output shafts of the plurality of driving steering engines extend into the unlocking mechanism main body and are fixedly provided with steering engine rocker arms; a sliding lock rod is arranged in the unlocking mechanism body, a plurality of long waist holes are formed in the lock rod, and a plurality of steering engine rocker arms are respectively inserted into the long waist holes; and the unlocking mechanism body is also provided with a reset mechanism for driving the lock rod to reset. The unlocking mechanism for the parachute bay of the unmanned aerial vehicle can still unlock the parachute bay cover when one steering engine fails, so that the unmanned aerial vehicle is ensured to be safely recovered, and the unmanned aerial vehicle is simple and compact in structure, safe, reliable and light in weight.
Description
Technical Field
The utility model belongs to the technical field of aircrafts, and particularly relates to an unmanned aerial vehicle canopy unlocking mechanism.
Background
The unmanned aircraft is called an unmanned aerial vehicle for short, and called a UAV in English for short, and is an unmanned aircraft operated by using a radio remote control device and a self-contained program control device, and the definition of the technology can be divided into: unmanned fixed wing aircraft, unmanned airship, unmanned helicopter, unmanned multi-rotor aircraft, unmanned paravane, and the like.
Along with the scope that unmanned aerial vehicle used is more and more extensive, inevitably can expose some problems, one of them very big problem is exactly unmanned aerial vehicle's unexpected crash, if unmanned aerial vehicle is in very high flying height, in case the loss control leads to falling, will bring very big potential safety hazard for unmanned aerial vehicle itself and ground personnel, in order to solve above-mentioned problem, all prevent unmanned aerial vehicle to fall out of control through increasing the parachute device in unmanned aerial vehicle at present.
At present, an unlocking device of an unmanned aerial vehicle parachute bay generally comprises a steering engine and a set of link mechanism. When this steering wheel broke down, release mechanism can't work, had the problem of hatch board unblock failure, finally leaded to unmanned aerial vehicle to retrieve the risk of failure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an unmanned aerial vehicle parachute bay cover unlocking mechanism, which can still unlock the parachute bay cover unlocking mechanism when one steering engine fails, ensures the safe recovery of the unmanned aerial vehicle, and has the advantages of simple and compact structure, safety, reliability and light weight.
In order to realize the purpose of the utility model, the technical scheme is as follows: an unmanned aerial vehicle canopy unlocking mechanism comprises an unlocking mechanism main body and a plurality of driving steering engines, wherein output shafts of the driving steering engines extend into the unlocking mechanism main body and steering engine rocker arms are fixedly mounted in the unlocking mechanism main body; a sliding lock rod is arranged in the unlocking mechanism body, a plurality of long waist holes are formed in the lock rod, and a plurality of steering engine rocker arms are respectively inserted into the long waist holes; and the unlocking mechanism body is also provided with a reset mechanism for driving the lock rod to reset.
Furthermore, the unlocking mechanism main body is jointly fixed on the shells of the plurality of driving steering engines.
Furthermore, the inner wall of the unlocking mechanism main body is provided with a track, and the lock rod is installed in the track in a sliding mode.
Furthermore, a rotatable locking rod roller is arranged in the long waist hole, the locking rod roller is positioned on the swinging side of the steering engine rocker arm, and when the locking rod is in a locking state, the locking rod roller is matched with the steering engine rocker arm.
Furthermore, the reset mechanism comprises a fixed column and a tension spring, and two ends of the tension spring are respectively connected with the lock rod and the fixed column 14.
Further, the extension arm has on the locking lever, and the both ends of extension spring all have the couple, and the one end of extension spring is hung and is established on the extension arm, and the other end of extension spring is hung and is established on the fixed column.
Further, bayonets have all been seted up on extension arm and the fixed column, and the couple at the both ends of extension spring all hangs and establishes in the bayonet socket.
Furthermore, the steering engine rocker arm is provided with a through hole matched with the driving steering engine output shaft, and a compression screw for compressing the steering engine rocker arm is installed on the end face of the driving steering engine output shaft.
Furthermore, the diameter of the through hole is smaller than that of the output shaft of the driving steering engine, an opening is formed in the rocker arm of the steering engine, one end of the opening is communicated with the through hole, and the other end of the opening extends to the side face of the rocker arm of the steering engine.
Furthermore, one end of the lock rod, which is close to the swinging of the rocker arm of the steering engine, is in a hook shape.
The beneficial effect of the utility model is that,
1. according to the utility model, the two driving steering engines are used for driving the locking rod, and the long waist hole in the locking rod is matched with the steering engine rocker arm, so that after one driving steering engine fails, even if the rocker arm on the failed driving steering engine cannot act, the steering engine rocker arm on the failed driving steering engine cannot obstruct the sliding of the locking rod, and the two driving steering engines cannot interfere with each other, thereby driving the parachute bay cover to be opened smoothly.
2. The utility model adopts the slide block structure to realize the opening or locking of the lock rod to the parachute bay cover, and has the advantages of few parts, simple and compact structure and low failure rate.
3. The number of the driving steering engines can be adjusted according to different safety redundancies of the three-opening mechanism, so that the utility model can meet the requirements of different machine types.
Drawings
FIG. 1 is a block diagram of an unmanned aerial vehicle canopy unlocking mechanism provided by the present invention;
FIG. 2 is a state diagram of a multi-drive steering engine drive unlocking state;
fig. 3 shows the unlocking state of the single-drive steering engine drive.
Reference numbers and corresponding part names in the drawings:
1. the device comprises a driving steering engine, 2, a steering engine rocker arm, 3, a lock rod, 4, a tension spring, 5, an unlocking mechanism body, 6, a lock rod roller, 7, a track, 8, an extension arm, 9, a bayonet, 10, a through hole, 11, a compression screw, 12, an opening, 13, a long waist hole, 14 and a fixed shaft.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in fig. 1 to 3, the unlocking mechanism for the canopy of the unmanned aerial vehicle comprises an unlocking mechanism main body 5 and a plurality of driving steering engines 1, wherein the plurality of driving steering engines 1 are arranged at intervals along a straight line, output shafts of the plurality of driving steering engines 1 extend into the unlocking mechanism main body 5, steering engine rocker arms 2 are fixedly installed at output ends of the driving steering engines 1, and the steering engine rocker arms 2 are driven to swing through rotation of the driving steering engines 1; still install slidable locking lever 3 in the release mechanism main part 5, the slip direction of locking lever 3 is unanimous with a plurality of steering wheel range orientation, long kidney hole 13 that still has the correspondence with a plurality of steering wheel rocking arms 2 on the locking lever 3, the axis direction of long kidney hole 13 is unanimous with the slip direction of locking lever 3, and the length of long kidney hole 13 is not less than 3 sliding distance of locking lever and the sum of steering wheel rocking arm 2 extension end width, the extension end of a plurality of steering wheel rocking arms 2 is inserted one by one and is established in long kidney hole 13, the extension end of every steering wheel rocking arm 2 all is located long kidney hole 13 and is close to the 2 wobbling one side of steering wheel rocking arm, when making drive steering wheel 1 drive steering wheel rocking arm 2 move, steering wheel rocking arm 2 can promote locking lever 3 to slide immediately.
Still be equipped with canceling release mechanical system on the release mechanism main part 5, because steering wheel rocking arm 2 and locking lever 3 are not lug connection, make steering wheel rocking arm 2 when reseing, steering wheel rocking arm 2 can not directly drive locking lever 3 and reset, consequently, in order to make the parachute cabin lid realize automatic re-setting after the slip unblock of steering wheel rocking arm 2 drive locking lever 3, need set up a canceling release mechanical system alone and drive locking lever 3 and reset.
When the umbrella cabin cover needs to be unlocked, one of the driving steering engines 1 is started, the driving steering engine 1 drives the steering engine rocker arm 2 to swing, the steering engine rocker arm 2 pushes the locking rod 3 to slide while swinging, so that the two ends of the locking rod 3 lose locking on the umbrella cabin cover, and the umbrella cabin cover is automatically opened.
When the umbrella cabin cover is opened, the two driving steering engines 1 do not need to act simultaneously, namely when one driving steering engine 1 breaks down, any other driving steering engine 1 can push the locking rod 3, when one driving steering engine 1 fails, the other driving steering engine 1 cannot drive the locking rod 3, and the umbrella cabin cover can be opened smoothly.
In some embodiments, because the shells of the driving steering engines 1 are always stable in the rotating process of the driving steering engines 1, in order to save installation space, the unlocking mechanism main body 5 can be directly and jointly fixed on the shells of the driving steering engines 1 through screws, so that the unlocking mechanism main body 5 is more convenient to install.
In some embodiments, the inner wall of the unlocking mechanism body is provided with a track 7, and the locking rod 3 is slidably mounted in the track 7, the track 7 may be formed by two parallel limit strips arranged on the unlocking mechanism body 5, and the locking rod 3 is slidably clamped between the two limit strips, meanwhile, since the inside of the unlocking mechanism body 5 is hollow, a limit strip may also be directly arranged in the unlocking mechanism, and the locking rod 3 is slidably clamped between the limit strips and the flanges of the unlocking mechanism body. The specific structure of the rail 7 can be adjusted according to the specific shape of the lock rod 3, and the rail 7 can adopt the two rail 7 structures or one rail 7 structure.
In some embodiments, a rotatable locking lever roller 6 is installed in the long waist hole 13, the axis direction of the locking lever roller 6 is consistent with the width direction of the long waist hole 13, and the locking lever roller 6 is located on the swinging side of the steering engine rocker arm 2, so that when the locking lever 3 is in a locking state, the wheel surface of the locking lever roller 6 is close to the steering engine rocker arm 2, here, the swinging side of the steering engine rocker arm 2 is the side of the umbrella cabin cover on which the locking lever 3 slides forwards when unlocking is needed, and mainly when the steering engine rocker arm 2 needs to push the locking lever 3 to slide, the swinging of the steering engine rocker arm 2 directly acts on the locking lever roller 6, so that the locking lever 3 is thrust, the locking lever 3 can slide immediately, and the response time of the locking lever 3 is reduced; through the cooperation of steering wheel rocking arm 2 and locking lever gyro wheel 6, effectively reduce the friction between steering wheel rocking arm 2 and the locking lever 3, avoid steering wheel rocking arm 2 and locking lever 3 to receive wearing and tearing, make steering wheel rocking arm 2 react more rapidly when promoting locking lever 3.
In some embodiments, the reset mechanism comprises a fixed column 14 and a tension spring 4, the fixed column 14 is fixed on the unlocking mechanism main body 5, and the fixed column 14 is close to the middle of the unlocking mechanism, so that the whole structure is more compact; two ends of the tension spring 4 are respectively connected with the locking rod 3 and the fixing column 14, when the steering engine rocker arm 2 pushes the locking rod 3 to slide, the tension spring 4 is stretched, when the steering engine rocker arm 2 is reset, the steering engine rocker arm 2 cannot drive the locking rod 3 to reset due to the fact that the steering engine rocker arm 2 is not directly connected with the locking rod 3, at the moment, the locking rod 3 is enabled to receive a pulling force moving back through the pulling force of the tension spring 4, the locking rod 3 is enabled to reset along the rail 7, and the locking rod 3 is enabled to reset automatically after the parachute cabin cover is unlocked.
In some embodiments, the lock rod 3 is provided with an extension arm 8, the extension arm 8 and the lock rod 3 are of an integral structure, the two ends of the tension spring 4 are provided with hooks, one end of the tension spring 4 is hung on the extension arm 8, and the other end of the tension spring 4 is hung on the fixing column 14, so that the tension spring 4 is more convenient to install.
In some embodiments, bayonets 9 have all been seted up on extension arm 8 and the fixed column 14, and the couple at the both ends of extension spring 4 all hangs and establishes in bayonet 9, makes the couple at extension spring 4 both ends hang respectively and establishes on extension arm 8 or fixed column 14 after, bayonet 9 can carry on spacingly to the couple, effectively prevents that the couple from producing the displacement, makes the installation of extension spring 4 more stable.
In some embodiments, the steering engine rocker arm 2 is provided with a through hole 10 matched with an output shaft of the driving steering engine 1, a compression screw 11 for compressing the steering engine rocker arm 2 is installed on the end face of the output shaft of the driving steering engine 1, when the steering engine rocker arm 2 needs to be fixed, the steering engine rocker arm 2 is sleeved on the output shaft of the driving steering engine 1 through the through hole 10 in the steering engine rocker arm 2, and finally the compression screw 11 fixes the steering engine rocker arm 2 on the output shaft of the driving steering engine 1 by screwing up a tightening screw, so that the steering engine rocker arm 2 is more convenient to install.
In some embodiments, the diameter of the through hole 10 is smaller than that of an output shaft of the driving steering engine 1, an opening 12 is formed in the steering engine rocker arm 2, one end of the opening 12 is communicated with the through hole 10, the other end of the opening 12 extends to the side face of the steering engine rocker arm 2, the diameter of the through hole 10 is smaller than that of the output shaft of the driving steering engine 1, the opening 12 is formed, the through hole 10 has a certain shrinkage, when the steering engine rocker arm 2 is installed, the steering engine rocker arm 2 is rapidly clamped on the output shaft of the driving steering engine 1 through the shrinkage of the through hole 10, after the steering engine rocker arm 2 is installed on the output shaft of the driving steering engine 1, the steering engine rocker arm 2 is fastened on the output shaft of the driving steering engine 1, a compression screw 11 is matched, and the fastening effect of the steering engine rocker arm 2 is greatly improved.
In some embodiments, one end of the lock rod 3, which is close to the swing of the steering engine rocker arm 2, is in a hook shape, and the other end of the lock rod 3 is in a rod shape, so that when the lock rod 3 slides to unlock the canopy, both ends of the lock rod 3 are in an unlocked state, and after the lock rod 3 is reset, both ends of the lock rod 3 are in a locked state from a new pair of canopy.
When the unmanned aerial vehicle is in a normal flight state, the driving steering engine 1 does not act, the lock rod 3 is kept still, and two ends of the lock rod 3 are jointly fastened with hooks on the canopy, so that the canopy is in a locking state.
When the canopy needs the unblock, one of them drive steering wheel 1 action or a plurality of drive steering wheel 1 simultaneous movement, drive steering wheel 1 drives steering wheel rocking arm 2 synchronous oscillation, steering wheel rocking arm 2 is when the swing, steering wheel rocking arm 2 promotes locking lever gyro wheel 6, the power that locking lever gyro wheel 6 received is direct to be used on locking lever 3, make locking lever 3 receive a thrust, make locking lever 3 slide along track 7, make locking lever 3 lose the locking to the couple on the canopy, make the canopy unblock, the canopy is opened automatically.
After the canopy is opened, drive steering wheel 1 reversal, drive steering wheel 1 drives steering wheel rocking arm 2 and resets, and the push rod has lost steering wheel rocking arm 2's thrust, and at this moment, extension spring 4 makes locking lever 3 along track 7 automatic re-setting through the pulling force pulling locking lever 3 of self.
When one of the driving steering engines 1 fails, the failed driving steering engine 1 cannot drive the steering engine rocker arm 2 to swing, and the steering engine rocker arm 2 and the locking rod 3 are not directly connected, so that when other driving steering engines 1 drive the steering engine 1 rocker arms to swing, the swinging steering engine rocker arm 2 can normally push the locking rod 3 to slide along the track 7, and therefore the locking rod 3 still can lose the locking of the hook on the canopy, the canopy can be normally unlocked, and the canopy can be automatically opened.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An unmanned aerial vehicle parachute bay cover unlocking mechanism is characterized by comprising an unlocking mechanism main body (5) and a plurality of driving steering engines (1), wherein output shafts of the driving steering engines (1) extend into the unlocking mechanism main body (5) and steering engine rocker arms (2) are fixedly mounted; a sliding lock rod (3) is installed in the unlocking mechanism body (5), a plurality of long waist holes (13) are formed in the lock rod (3), and a plurality of steering engine rocker arms (2) are respectively inserted into the long waist holes (13); and the unlocking mechanism body (5) is also provided with a reset mechanism for driving the lock rod (3) to reset.
2. The unmanned aerial vehicle canopy unlocking mechanism of claim 1 wherein the unlocking mechanism body (5) is jointly fixed to the housing of the plurality of drive steering engines (1).
3. The unmanned aerial vehicle canopy unlocking mechanism of claim 1 wherein the unlocking mechanism body inner wall has a track (7) and the locking rod (3) is slidably mounted in the track (7).
4. The unmanned aerial vehicle canopy unlocking mechanism of claim 1, wherein a rotatable locking rod roller (6) is installed in the long waist hole (13), the locking rod roller (6) is located on the swinging side of the steering engine rocker arm (2), and when the locking rod (3) is in a locking state, the locking rod roller (6) is matched with the steering engine rocker arm (2).
5. The unmanned aerial vehicle canopy unlocking mechanism of claim 1, wherein the resetting mechanism comprises a fixed column (14) and a tension spring (4), and two ends of the tension spring (4) are respectively connected with the locking rod (3) and the fixed column (14).
6. The unmanned aerial vehicle canopy unlocking mechanism of claim 5, wherein the locking rod (3) is provided with an extension arm (8), the two ends of the tension spring (4) are provided with hooks, one end of the tension spring (4) is hung on the extension arm (8), and the other end of the tension spring (4) is hung on the fixing column (14).
7. The unmanned aerial vehicle canopy unlocking mechanism of claim 6, wherein bayonets (9) are formed in the extension arm (8) and the fixing column (14), and hooks at two ends of the tension spring (4) are hung in the bayonets (9).
8. The unmanned aerial vehicle canopy unlocking mechanism of claim 1, wherein the steering engine rocker arm (2) is provided with a through hole (10) matched with the output shaft of the driving steering engine (1), and a compression screw (11) for compressing the steering engine rocker arm (2) is mounted on the end face of the output shaft of the driving steering engine (1).
9. The unmanned aerial vehicle canopy unlocking mechanism of claim 8, wherein the diameter of the through hole (10) is smaller than the diameter of an output shaft of the driving steering engine (1), an opening (12) is formed in the steering engine rocker arm (2), one end of the opening (12) is communicated with the through hole (10), and the other end of the opening (12) extends to the side face of the steering engine rocker arm (2).
10. The unmanned aerial vehicle canopy unlocking mechanism of any one of claims 1 to 9 wherein the end of the locking lever (3) near the swing of the steering engine rocker arm (2) is hook-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122396241.0U CN215436954U (en) | 2021-09-30 | 2021-09-30 | Unmanned aerial vehicle canopy unlocking mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122396241.0U CN215436954U (en) | 2021-09-30 | 2021-09-30 | Unmanned aerial vehicle canopy unlocking mechanism |
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| CN215436954U true CN215436954U (en) | 2022-01-07 |
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| CN202122396241.0U Active CN215436954U (en) | 2021-09-30 | 2021-09-30 | Unmanned aerial vehicle canopy unlocking mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114229001A (en) * | 2022-01-25 | 2022-03-25 | 四块科技(深圳)有限公司 | Release device and unmanned aerial vehicle with release device |
| CN115009529A (en) * | 2022-07-08 | 2022-09-06 | 广东电网有限责任公司 | Power inspection multi-rotor unmanned aerial vehicle air crash self-rescue protection device and system |
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2021
- 2021-09-30 CN CN202122396241.0U patent/CN215436954U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114229001A (en) * | 2022-01-25 | 2022-03-25 | 四块科技(深圳)有限公司 | Release device and unmanned aerial vehicle with release device |
| CN115009529A (en) * | 2022-07-08 | 2022-09-06 | 广东电网有限责任公司 | Power inspection multi-rotor unmanned aerial vehicle air crash self-rescue protection device and system |
| CN115009529B (en) * | 2022-07-08 | 2024-04-12 | 广东电网有限责任公司 | Self-rescue protection device for crash of electric power inspection multi-rotor unmanned aerial vehicle |
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