CN117262284B - Fixed wing unmanned aerial vehicle - Google Patents

Fixed wing unmanned aerial vehicle Download PDF

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Publication number
CN117262284B
CN117262284B CN202311542341.7A CN202311542341A CN117262284B CN 117262284 B CN117262284 B CN 117262284B CN 202311542341 A CN202311542341 A CN 202311542341A CN 117262284 B CN117262284 B CN 117262284B
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CN
China
Prior art keywords
umbrella
umbrella cabin
locking
unlocking
explosion bolt
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CN202311542341.7A
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Chinese (zh)
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CN117262284A (en
Inventor
周涛
高万春
郑粮椿
张宇
李凡
方毅华
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Hangzhou Pastar Technology Co ltd
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Hangzhou Pastar Technology Co ltd
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Priority to CN202311542341.7A priority Critical patent/CN117262284B/en
Publication of CN117262284A publication Critical patent/CN117262284A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U70/00Launching, take-off or landing arrangements
    • B64U70/80Vertical take-off or landing, e.g. using rockets
    • B64U70/83Vertical take-off or landing, e.g. using rockets using parachutes, balloons or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D17/00Parachutes
    • B64D17/80Parachutes in association with aircraft, e.g. for braking thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00Type of UAV
    • B64U10/25Fixed-wing aircraft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00UAVs specially adapted for particular uses or applications

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Remote Sensing (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The application discloses fixed wing unmanned aerial vehicle includes: the machine body is provided with an umbrella hatch, an umbrella cabin front plate and an umbrella cabin rear plate; the locking piece is provided with an explosion bolt and is provided with an unlocking working position and a locking working position; the umbrella cabin cover is used for covering the umbrella hatch, the front end of the umbrella cabin cover is provided with a lock hook which is matched with the explosion bolt, when the locking piece is in the locking working position, the lock hook hooks the explosion bolt, the front end of the umbrella cabin cover is limited, when the locking piece is in the unlocking working position, the explosion bolt does not limit the lock hook any more, the front end of the umbrella cabin cover can be separated upwards, and after the front end of the umbrella cabin cover is separated upwards, the rear end of the umbrella cabin cover is separated from the rear plate of the umbrella cabin; and the unlocking element is used for driving the locking piece to rotate to the unlocking working position. According to the method, two cover opening modes can be realized through the matching of the explosion bolts and the lock hooks, the unlocking and opening of the umbrella cabin cover can be effectively guaranteed, and compared with the prior art, in the normal cover opening mode, the novel explosion bolts are not required to be installed after recovery.

Description

Fixed wing unmanned aerial vehicle
Technical Field
The invention relates to the field of unmanned aerial vehicles, in particular to a fixed wing unmanned aerial vehicle.
Background
The patent document with publication number CN 110963047A discloses an automatic parachute opening device for an unmanned aerial vehicle, which comprises a parachute cabin, a parachute cabin cover, a detonator and a ratchet mechanism, wherein the ratchet mechanism is arranged on the outer wall of the parachute cabin, one end of the parachute cabin cover is inserted on the inner wall of the parachute cabin, the other end of the parachute cabin cover is connected with a nylon rope, the tail end of the nylon rope is connected with the ratchet mechanism, the ratchet mechanism is used for tensioning the nylon rope, and the detonator is sleeved on the nylon rope and is respectively connected with a power supply and a flight control module. When the parachute needs to be opened, the opening of the parachute cabin cover is realized by cutting off the nylon rope through detonating the detonator.
In the structure of the patent document, the cost of using the detonator is high, and in addition, the detonator needs to be installed again after each recovery, so that the installation and debugging are time-consuming and labor-consuming.
Disclosure of Invention
The invention provides a fixed wing unmanned aerial vehicle aiming at the problems.
The technical scheme adopted by the invention is as follows:
a fixed wing unmanned aerial vehicle, comprising:
the device comprises a machine body, a motor control device and a motor, wherein the upper end of the machine body is provided with an umbrella hatch, the machine body is provided with an umbrella cabin front plate at the front side of the umbrella hatch, the machine body is provided with an umbrella cabin rear plate at the rear side of the umbrella hatch, and the umbrella cabin rear plate is provided with an induction sensor;
the locking piece is rotatably arranged on the parachute cabin front plate, an explosion bolt is arranged on the locking piece, and the locking piece is provided with an unlocking working position and a locking working position;
the umbrella cabin cover is arranged between the umbrella cabin front plate and the umbrella cabin rear plate and used for covering the umbrella cabin opening, the rear end of the umbrella cabin cover is used for being in plug-in fit with the umbrella cabin rear plate, when the rear end of the umbrella cabin cover is inserted into the umbrella cabin rear plate, the induction sensor is triggered, and when the rear end of the umbrella cabin cover is separated from the umbrella cabin rear plate, the induction sensor is not triggered; the front end of the umbrella cabin cover is provided with a lock hook which is matched with the explosion bolt, when the locking piece is in a locking working position, the lock hook hooks the explosion bolt, the front end of the umbrella cabin cover is limited, when the locking piece is in an unlocking working position, the explosion bolt does not limit the lock hook any more, the front end of the umbrella cabin cover can be separated upwards, and when the front end of the umbrella cabin cover is separated upwards, the rear end of the umbrella cabin cover is separated from the umbrella cabin rear plate; and
the unlocking element is arranged on the front board of the parachute cabin and used for driving the locking piece to rotate to an unlocking working position;
the fixed wing unmanned aerial vehicle is provided with a normal uncovering mode and an emergency uncovering mode, and in the normal uncovering mode, the unlocking element drives the locking piece to rotate to an unlocking working position so as to enable the explosion bolt to be separated from the locking hook; in the emergency uncapping mode, the explosion bolt and the lock hook can be separated by detonating the explosion bolt.
According to the method, two cover opening modes can be realized through the cooperation of the explosion bolt and the lock hook, the unlocking and opening of the umbrella cabin cover can be effectively ensured, and the explosion bolt and the lock hook are separated by driving the locking piece to rotate to an unlocking working position through the unlocking element in the normal cover opening mode; after the set time is exceeded in the normal uncapping mode, when the induction sensor is still in a triggered state, the uncapping failure is judged at the moment, the explosion bolt and the lock hook cannot be separated normally, and the fixed wing unmanned aerial vehicle is switched to the emergency uncapping mode. Compared with the prior art, in the normal uncovering mode, the novel explosion bolt is not required to be installed after recovery.
During practical application, the unlocking element can be in the forms of an electromagnet, an electric push rod, a steering engine, a crank motor assembly and the like.
In one embodiment of the invention, the locking hook comprises a vertical section and a horizontal section, the upper end surface of the horizontal section is provided with a limit groove, and the explosion bolt is embedded into the limit groove when the locking piece is in an unlocking working position;
the lower part of one end of the horizontal section far away from the vertical section is provided with a guide inclined plane, and when the front end of the umbrella deck cover is pressed towards the locking piece, the guide inclined plane is used for being in contact fit with the explosion bolt to drive the locking piece to be switched to an unlocking working position.
The design of the limiting groove can ensure that the locking piece reliably limits the locking hook when the locking piece is not unlocked; the design of the guide inclined plane is convenient for assembling the umbrella hatch cover.
In one embodiment of the invention, the locking piece is rotatably mounted on the front board of the parachute cabin through the rotating shaft, the locking piece comprises a locking section positioned above the rotating shaft and an unlocking section positioned below the rotating shaft, the explosion bolt is mounted on the locking section, the distance between the axis of the explosion bolt and the axis of the rotating shaft is a, the distance between the center of the contact area of the unlocking element and the unlocking section and the axis of the rotating shaft is b, and b is greater than or equal to a.
In one embodiment of the present invention, the ratio of b to a is 1.5 to 3.
When the explosion bolt is unlocked, a large force is needed, and the moment can be increased in a lever mode, so that the unlocking element can apply enough moment to switch the locking piece to the unlocking working position.
In one embodiment of the invention, one end of the locking section, which is far away from the rotating shaft, is provided with a U-shaped part, the U-shaped part comprises a bottom plate and side plates respectively positioned at two sides of the bottom plate, and the explosion bolt is arranged between the two side plates.
The installation and replacement of the explosion bolt are convenient. In practical use, one end of the explosion bolt penetrates through one side plate, and the other end of the explosion bolt is in threaded connection with the other side plate or is connected with the other side plate through a nut.
In one embodiment of the invention, the parachute cabin front plate is provided with a front baffle plate extending to the bottom plate of the U-shaped part, and the explosion bolts are arranged above the front baffle plate;
the umbrella cabin cover is provided with a rear baffle plate extending to the rear side of the U-shaped part;
the front baffle, the U-shaped part and the rear baffle form a protective space.
The protective space formed by the front baffle, the U-shaped part and the rear baffle occupies small volume, can play a protective role when the explosion bolt detonates, and prevents fragments after detonation from directly entering the space where the parachute is located to damage the parachute.
In one embodiment of the invention, the umbrella further comprises a return spring, wherein one end of the return spring is contacted with the front board of the umbrella cabin, the other end of the return spring is contacted with the locking section, and the return spring is used for enabling the locking piece to have a rotation trend of steering locking working positions;
at least one of the canopy front plate and the locking section has a mounting slot for mounting the return spring.
In one embodiment of the invention, the back plate of the parachute cabin is provided with a strip-shaped hole, the induction sensor is arranged on the strip-shaped hole, and the rear end of the parachute cabin cover is provided with an inserting shaft inserted into the strip-shaped hole.
In one embodiment of the present invention, the inductive sensor is disposed on an upper side wall or a bottom wall of the strip-shaped hole.
When the locking piece is in an unlocking working position, the plug shaft triggers the induction sensor, and after the plug shaft is separated from the strip-shaped hole, the plug shaft does not trigger the induction sensor.
In practical application, the inductive sensor can be a mechanical switch, such as a micro switch, or a Hall sensor, and the plug shaft is provided with a magnet.
In one embodiment of the present invention, the control module is further connected with the unlocking element, the explosion bolt and the induction sensor electrically, when the control module controls the unlocking element to act and the induction sensor is still in a triggered state after a set time range, the control module judges that the uncovering fails, and the control module controls the explosion bolt to explode.
The beneficial effects of the invention are as follows: according to the method, two cover opening modes can be realized through the cooperation of the explosion bolt and the lock hook, the unlocking and opening of the umbrella cabin cover can be effectively ensured, and the explosion bolt and the lock hook are separated by driving the locking piece to rotate to an unlocking working position through the unlocking element in the normal cover opening mode; after the set time is exceeded in the normal uncapping mode, when the induction sensor is still in a triggered state, the uncapping failure is judged at the moment, the explosion bolt and the lock hook cannot be separated normally, and the fixed wing unmanned aerial vehicle is switched to the emergency uncapping mode. Compared with the prior art, in the normal uncovering mode, the novel explosion bolt is not required to be installed after recovery.
Drawings
FIG. 1 is a schematic illustration of a fixed wing drone;
FIG. 2 is a schematic view of a canopy front plate, canopy rear plate, locking member, canopy and unlocking element;
FIG. 3 is a schematic view of another angle of the secured canopy front plate, canopy rear plate, locking member, canopy and unlocking element;
FIG. 4 is a schematic view of an umbrella canopy;
FIG. 5 is a schematic view of a back panel of the canopy;
FIG. 6 is a schematic view of a canopy front plate lock, unlocking element, and return spring;
FIG. 7 is a schematic view of the locking member being switched to the unlocked operative position;
FIG. 8 is a top view of the canopy front plate, canopy rear plate, locking member, canopy and unlocking element;
FIG. 9 is a cross-sectional view A-A of FIG. 8;
FIG. 10 is a cross-sectional view of the locking member being switched to the unlocking position;
FIG. 11 is a schematic view of the canopy front plate lock, unlocking element, and return spring of example 2;
FIG. 12 is a schematic view of an umbrella canopy of embodiment 2;
fig. 13 is a schematic view of the lock of embodiment 2 in the locked operative position.
The reference numerals in the drawings are as follows:
100. a body; 101. an umbrella hatch; 1. an umbrella cabin front plate; 11. a front baffle; 2. umbrella cabin cover; 21. a latch hook; 211. a vertical section; 212. a horizontal section; 2121. a limit groove; 2122. a guide slope; 22. inserting a shaft; 23. a rear baffle; 3. a canopy back plate; 31. a bar-shaped hole; 32. an inductive sensor; 4. a locking member; 41. a locking section; 411. a U-shaped portion; 4111. a bottom plate; 4112. a side plate; 412. an explosive bolt; 413. a mounting groove; 42. unlocking the section; 5. an unlocking element; 6. a rotating shaft; 7. and a return spring.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the embodiments described are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put when the product of the application is used, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
The present invention will be described in detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 10, there is disclosed a fixed wing unmanned aerial vehicle comprising:
the device comprises a machine body 100, wherein an umbrella hatch 101 is arranged at the upper end of the machine body 100, an umbrella cabin front plate 1 is arranged at the front side of the umbrella hatch 101 of the machine body 100, an umbrella cabin rear plate 3 is arranged at the rear side of the umbrella hatch 101 of the machine body 100, and an induction sensor 32 is arranged on the umbrella cabin rear plate 3;
the locking piece 4 is rotatably arranged on the parachute cabin front plate 1, an explosion bolt 412 is arranged on the locking piece 4, and the locking piece 4 is provided with an unlocking working position and a locking working position;
the umbrella cabin cover 2 is arranged between the umbrella cabin front plate 1 and the umbrella cabin rear plate 3 and is used for covering the umbrella hatch 101, the rear end of the umbrella cabin cover 2 is used for being in plug-in fit with the umbrella cabin rear plate 3, when the rear end of the umbrella cabin cover 2 is inserted into the umbrella cabin rear plate 3, the induction sensor 32 is triggered, and when the rear end of the umbrella cabin cover 2 is separated from the umbrella cabin rear plate 3, the induction sensor 32 is not triggered; the front end of the parachute cabin cover 2 is provided with a lock hook 21, the lock hook 21 is matched with the explosion bolt 412, when the locking piece 4 is in the locking working position, the lock hook 21 hooks the explosion bolt 412, the front end of the parachute cabin cover 2 is limited, when the locking piece 4 is in the unlocking working position, the explosion bolt 412 does not limit the lock hook 21 any more, the front end of the parachute cabin cover 2 can be separated upwards, and after the front end of the parachute cabin cover 2 is separated upwards, the rear end of the parachute cabin cover 2 is separated from the parachute cabin rear plate 3; and
the unlocking element 5 is arranged on the parachute cabin front plate 1 and is used for driving the locking piece 4 to rotate to an unlocking working position;
the fixed wing unmanned aerial vehicle has a normal uncovering mode and an emergency uncovering mode, and in the normal uncovering mode, the unlocking element 5 drives the locking piece 4 to rotate to an unlocking working position to enable the explosion bolt 412 to be separated from the locking hook 21; in the emergency cover opening mode, the explosion bolt 412 and the latch hook 21 can be disengaged by detonating the explosion bolt 412.
According to the method, two cover opening modes can be realized through the cooperation of the explosion bolt 412 and the lock hook 21, the unlocking and opening of the umbrella deck cover 2 can be effectively ensured, and the explosion bolt 412 is separated from the lock hook 21 by driving the locking piece 4 to rotate to an unlocking working position through the unlocking element 5 in the normal cover opening mode; after the set time is exceeded in the normal uncapping mode, when the inductive sensor 32 is still in the triggered state, it is determined that the uncapping fails at this time, the explosion bolt 412 and the lock hook 21 cannot be separated normally, and the fixed wing unmanned aerial vehicle switches to the emergency uncapping mode. Compared with the prior art, in the normal uncovering mode, the novel explosion bolt 412 does not need to be installed after recovery.
In practical use, the unlocking element 5 can be in the form of an electromagnet, an electric push rod, a steering engine, a crank motor assembly and the like.
As shown in fig. 4, 8, 9 and 10, in the present embodiment, the latch hook 21 includes a vertical section 211 and a horizontal section 212, the upper end surface of the horizontal section 212 has a limit groove 2121, and when the locking member 4 is in the unlocking position, the explosion bolt 412 is embedded in the limit groove 2121;
the lower part of the end of the horizontal section 212, which is far from the vertical section 211, is provided with a guiding inclined plane 2122, and when the front end of the umbrella deck lid 2 is pressed against the locking member 4, the guiding inclined plane 2122 is used for being in contact fit with the explosion bolt 412 to drive the locking member 4 to be switched to the unlocking working position.
The design of the limit groove 2121 can ensure that the locking piece 4 reliably limits the locking hook 21 when not unlocked; the design of the guide ramp 2122 facilitates assembly of the canopy 2.
As shown in fig. 6 and 7, in the present embodiment, the locking member 4 is rotatably mounted on the canopy front plate 1 through the rotation shaft 6, the locking member 4 includes a locking section 41 located above the rotation shaft 6 and an unlocking section 42 located below the rotation shaft 6, the explosion bolt 412 is mounted on the locking section 41, the distance between the axis of the explosion bolt 412 and the axis of the rotation shaft 6 is a, and the distance between the center of the contact area of the unlocking member 5 and the unlocking section 42 and the axis of the rotation shaft 6 is b, where b is equal to or greater than a.
In practice, the ratio of b to a is preferably from 1.5 to 3.
When the explosive bolt 412 is unlocked, a large force is required, and the moment can be increased by means of a lever, so that the unlocking element 5 can apply enough moment to switch the locking piece 4 to the unlocking working position.
As shown in fig. 6, in the present embodiment, the end of the locking section 41 away from the rotation shaft 6 has a U-shaped portion 411, and the U-shaped portion 411 includes a bottom plate 4111 and side plates 4112 respectively located at both sides of the bottom plate 4111, and the explosion bolts 412 are installed between the two side plates 4112.
This arrangement facilitates installation and replacement of the explosive bolt 412. In practice, one end of the explosive bolt 412 passes through one side plate 4112, and the other end is screwed or connected to the other side plate 4112 by a nut.
As shown in fig. 6, 7, 8 and 9, in this embodiment, the umbrella further comprises a return spring 7, one end of the return spring 7 contacts with the front board 1 of the umbrella cabin, the other end contacts with the locking section 41, and the return spring 7 is used for enabling the locking piece 4 to have a rotation trend of steering to lock the working position;
at least one of the canopy front plate 1 and the locking section 41 has a mounting groove 413 for mounting the return spring 7.
As shown in fig. 3, 4 and 5, in the present embodiment, the canopy back plate 3 has a bar-shaped hole 31, and the rear end of the canopy 2 has an insertion shaft 22 inserted into the bar-shaped hole 31.
As shown in fig. 5, in the present embodiment, the upper side wall or the bottom wall of the bar hole 31 is provided with the sensing sensor 32, and when the locking member 4 is in the unlocking position, the latch 22 triggers the sensing sensor 32, and after the latch 22 is separated from the bar hole 31, the latch 22 no longer triggers the sensing sensor 32.
In practice, the inductive sensor 32 may be a mechanical switch, such as a micro switch, or may be a hall sensor, where the plug 22 has a magnet thereon.
In an embodiment of the present invention, the fixed wing unmanned aerial vehicle further includes a control module, the control module is electrically connected with the unlocking element 5, the explosion bolt 412 and the induction sensor 32, when the control module controls the unlocking element 5 to act, and after a set time range, the induction sensor 32 is still in a triggered state, the control module determines that the uncovering fails, and the control module controls the explosion bolt 412 to explode.
Example 2
As shown in fig. 11, 12 and 13, this embodiment differs from embodiment 1 in that: the canopy front panel 1 has a front baffle 11 extending toward a bottom panel 4111 of the U-shaped portion 411, with explosive bolts 412 above the front baffle 11;
the umbrella hatch 2 has a tailgate 23 extending to the rear side of the U-shaped portion 411;
the front barrier 11, the U-shaped portion 411, and the rear barrier 23 form a guard space.
The protective space formed by the front baffle 11, the U-shaped part 411 and the rear baffle 23 occupies a small volume, can play a protective role when the explosion bolt 412 is detonated, and prevents fragments after detonation from directly entering the space where the parachute is located to damage the parachute.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover all equivalent structures as modifications within the scope of the invention, either directly or indirectly, as may be contemplated by the present invention.

Claims (4)

1. A fixed wing unmanned aerial vehicle, comprising:
the device comprises a machine body, a motor control device and a motor, wherein the upper end of the machine body is provided with an umbrella hatch, the machine body is provided with an umbrella cabin front plate at the front side of the umbrella hatch, the machine body is provided with an umbrella cabin rear plate at the rear side of the umbrella hatch, and the umbrella cabin rear plate is provided with an induction sensor;
the locking piece is rotatably arranged on the parachute cabin front plate, an explosion bolt is arranged on the locking piece, and the locking piece is provided with an unlocking working position and a locking working position;
the umbrella cabin cover is arranged between the umbrella cabin front plate and the umbrella cabin rear plate and used for covering the umbrella cabin opening, the rear end of the umbrella cabin cover is used for being in plug-in fit with the umbrella cabin rear plate, when the rear end of the umbrella cabin cover is inserted into the umbrella cabin rear plate, the induction sensor is triggered, and when the rear end of the umbrella cabin cover is separated from the umbrella cabin rear plate, the induction sensor is not triggered; the front end of the umbrella cabin cover is provided with a lock hook which is matched with the explosion bolt, when the locking piece is in a locking working position, the lock hook hooks the explosion bolt, the front end of the umbrella cabin cover is limited, when the locking piece is in an unlocking working position, the explosion bolt does not limit the lock hook any more, the front end of the umbrella cabin cover can be separated upwards, and when the front end of the umbrella cabin cover is separated upwards, the rear end of the umbrella cabin cover is separated from the umbrella cabin rear plate; and
the unlocking element is arranged on the front board of the parachute cabin and used for driving the locking piece to rotate to an unlocking working position;
the fixed wing unmanned aerial vehicle is provided with a normal uncovering mode and an emergency uncovering mode, and in the normal uncovering mode, the unlocking element drives the locking piece to rotate to an unlocking working position so as to enable the explosion bolt to be separated from the locking hook; in the emergency uncapping mode, the explosion bolt and the lock hook can be separated by detonating the explosion bolt;
the locking hook comprises a vertical section and a horizontal section, the upper end surface of the horizontal section is provided with a limiting groove, and when the locking piece is in an unlocking working position, the explosion bolt is embedded into the limiting groove;
the lower part of one end of the horizontal section, which is far away from the vertical section, is provided with a guide inclined plane, and when the front end of the umbrella deck cover is pressed towards the locking piece, the guide inclined plane is used for being in contact fit with the explosion bolt to drive the locking piece to be switched to an unlocking working position; the locking piece is rotatably arranged on the parachute cabin front plate through a rotating shaft, the locking piece comprises a locking section positioned above the rotating shaft and an unlocking section positioned below the rotating shaft, the explosion bolt is arranged on the locking section, the distance between the axis of the explosion bolt and the axis of the rotating shaft is a, the distance between the center of the contact area of the unlocking element and the unlocking section and the axis of the rotating shaft is b, and the ratio of b to a is 1.5-3;
the locking section is provided with a U-shaped part at one end far away from the rotating shaft, the U-shaped part comprises a bottom plate and side plates respectively positioned at two sides of the bottom plate, and the explosion bolt is arranged between the two side plates;
the parachute cabin front plate is provided with a front baffle plate extending to the bottom plate of the U-shaped part, and the explosion bolts are arranged above the front baffle plate;
the umbrella cabin cover is provided with a rear baffle plate extending to the rear side of the U-shaped part;
the front baffle, the U-shaped part and the rear baffle form a protection space;
the control module is electrically connected with the unlocking element, the explosion bolt and the induction sensor, and when the control module controls the unlocking element to act and the induction sensor is in a triggered state after a set time range, the control module judges that the uncovering fails and controls the explosion bolt to explode.
2. The fixed wing drone of claim 1, further comprising a return spring having one end in contact with the canopy front plate and another end in contact with the locking section, the return spring configured to cause the locking member to have a rotational tendency toward the locking operational position;
at least one of the canopy front plate and the locking section has a mounting slot for mounting the return spring.
3. The fixed wing drone of claim 1, wherein the back panel of the pod has a bar aperture, the inductive sensor is disposed on the bar aperture, and the back end of the pod cover has a plug shaft that plugs into the bar aperture.
4. A fixed wing drone as claimed in claim 3, wherein the inductive sensor is provided on an upper side wall or a bottom wall of the strip aperture.
CN202311542341.7A 2023-11-20 2023-11-20 Fixed wing unmanned aerial vehicle Active CN117262284B (en)

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Application Number Priority Date Filing Date Title
CN202311542341.7A CN117262284B (en) 2023-11-20 2023-11-20 Fixed wing unmanned aerial vehicle

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CN202311542341.7A CN117262284B (en) 2023-11-20 2023-11-20 Fixed wing unmanned aerial vehicle

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CN117262284B true CN117262284B (en) 2024-02-23

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