CN106741838B - Quick folding mechanism and unmanned aerial vehicle - Google Patents
Quick folding mechanism and unmanned aerial vehicle Download PDFInfo
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- CN106741838B CN106741838B CN201611186915.1A CN201611186915A CN106741838B CN 106741838 B CN106741838 B CN 106741838B CN 201611186915 A CN201611186915 A CN 201611186915A CN 106741838 B CN106741838 B CN 106741838B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 230000005489 elastic deformation Effects 0.000 claims abstract description 6
- 230000007423 decrease Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/30—Parts of fuselage relatively movable to reduce overall dimensions of aircraft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C39/00—Aircraft not otherwise provided for
- B64C39/02—Aircraft not otherwise provided for characterised by special use
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
Abstract
The invention discloses a quick folding mechanism and an unmanned aerial vehicle. The mounting structure of the quick folding mechanism comprises two side plates, wherein each side plate comprises a body, a first extension part and a hook; the connecting structure is hinged between the two side plates through a hinge shaft and is provided with a strip-shaped through hole; the locking structure comprises a locking rod and an elastic piece, and when the elastic piece is elastically deformed, the locking rod can move in the length direction of the strip-shaped through hole; the connecting structure can rotate around the hinge shaft to enable the connecting structure to be switched between a locking state and a folding state, when the connecting structure is in the locking state, the end part of the locking rod is clamped into the hook, the elastic piece is in a state of partially recovering elastic deformation, and when the connecting structure is in the folding state, the end part of the locking rod is separated from the hook. The quick folding mechanism provided by the invention realizes quick folding of the arm in a hinged manner, can ensure the stability of a hinged state and improves the flight safety.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicles, in particular to a quick folding mechanism and an unmanned aerial vehicle.
Background
Unmanned aerial vehicles are unmanned planes operated by using radio remote control equipment and self-contained program control devices, and are widely applied to the military and civil fields. Unmanned aerial vehicles are various, and mainly comprise fixed wing unmanned aerial vehicles, flapping wing unmanned aerial vehicles, multi-rotor unmanned aerial vehicles and the like. Because many rotor unmanned aerial vehicle control is simple, the reliability is high to need not the runway alright take off and land perpendicularly, and can hover in the sky after taking off, for fixed wing unmanned aerial vehicle and ornithopter unmanned aerial vehicle, many rotor unmanned aerial vehicle has all obtained wide application in each field.
Many rotor unmanned aerial vehicle is including being located unmanned aerial vehicle central point put's organism, a plurality of horn and setting up in terminal motor and the rotor of each horn with the organism is connected usually, and wherein, many rotor unmanned aerial vehicle's horn is usually longer, and occupation space is big, inconvenient accomodate, places the transportation difficulty, therefore, adopts some folding mechanism in the prior art generally, in storage and transportation, folds the horn relative organism to reduce volume, convenient warehousing and transportation.
Chinese patent 201521123780.5 discloses a quick folding structure for a horn, as shown in fig. 1, the quick folding structure includes a bottom plate 1', a pull member 2', and an intermediate connector 3', wherein the bottom plate 1' is fixedly connected to the horn, the pull member 2 'is fixedly connected to a machine body, and the intermediate connector 3' is connected to the bottom plate and the pull member. The bottom surface plate 1 'and the pull member 2', the pull member 2 'and the middle connecting piece 3' are all fixed and connected in a pin shaft hinged mode, and the arm can be folded in the unmanned aerial vehicle storage and transportation process, so that the aim of convenient storage and transportation is fulfilled.
However, the locking device for locking the hinge state is not arranged at each hinge point, so that the hinge state of each hinge point is unstable due to vibration of the unmanned aerial vehicle body and the horn in the flight process of the unmanned aerial vehicle, and the flight safety is affected.
Aiming at the technical problems that the stability of the hinge state of the quick-folding structure of the horn in the prior art is poor and the flight safety is influenced, an effective solution is not proposed at present.
Disclosure of Invention
The invention aims to provide a quick folding mechanism and an unmanned aerial vehicle, which are used for realizing quick folding of a horn in a hinged mode, ensuring stability of a hinged state and improving flight safety.
In order to achieve the above object, the present invention provides a quick folding mechanism.
The quick folding mechanism comprises: the device comprises a mounting structure, a connecting structure and a locking structure, wherein the mounting structure comprises two side plates which are arranged in parallel, and each side plate comprises a body, a first extension part connected with the body and a hook connected with the first extension part; the connecting structure is hinged between the two side plates through a hinge shaft, and a strip-shaped through hole is formed in the connecting structure in the direction parallel to the axial direction of the hinge shaft; the locking structure comprises a locking rod and an elastic piece, wherein the locking rod and the elastic piece are arranged in the strip-shaped through hole, both end parts of the locking rod extend out of the strip-shaped through hole, one end of the elastic piece is fixed on the connecting structure, the other end of the elastic piece is used for supporting the locking rod, and the locking rod can move in the length direction of the strip-shaped through hole when the elastic piece is elastically deformed; the connecting structure can rotate around the hinge shaft to enable the connecting structure to be switched between a locking state and a folding state, when the connecting structure is in the locking state, the end part of the locking rod is clamped into the hook, the elastic piece is in a state of partially recovering elastic deformation, and when the connecting structure is in the folding state, the end part of the locking rod is separated from the hook.
Further, the hook comprises a top and a first side part and a second side part which are connected with the top, the first side part and the second side part are oppositely arranged, the inner wall of the first side part and the inner wall of the second side part are respectively provided with a contact point which is in contact with the locking rod, the distance between the inner wall of the first side part and the inner wall of the second side part is gradually reduced in the direction that the locking rod enters the hook, the minimum distance between the inner wall of the first side part and the inner wall of the second side part is smaller than the diameter of the locking rod, and the maximum distance between the inner wall of the first side part and the inner wall of the second side part is larger than the diameter of the locking rod.
Further, the inner wall of the first side portion and/or the inner wall of the second side portion is an inclined surface or an arc surface.
Further, the first side part is connected with the first extension part, the inner wall of the first side part, the inner wall of the first extension part and the inner wall of one side of the strip-shaped through hole are positioned on the same plane, and the inner wall of the second side part is an inclined plane or an arc surface.
Further, the inner wall of the top is a cambered surface.
Further, the outer surface of the hook opposite to the inner wall of the second side part is a slope inclined to the direction approaching the first side part.
Further, the elastic piece is a spring, limit grooves are correspondingly formed in the inner walls of the two sides of the strip-shaped through hole respectively, the maximum distance between the two limit grooves is equal to the outer diameter of the spring, and when the locking rod moves in the strip-shaped through hole, the spring elastically deforms along the two limit grooves.
Further, in the length direction of the strip-shaped through hole, the connecting structure is further provided with a limiting mounting hole communicated with the strip-shaped through hole, and a part of the elastic piece is fixed in the limiting mounting hole.
Further, the mounting structure still includes bottom plate and the back plate that are connected respectively with two curb plates, bottom plate and back plate enclose into the space that holds connection structure, first extension is connected with the back plate, every curb plate still including set up in keeping away from couple one side, the second extension that is connected with the body, the extending direction of second extension is the same with first extension, every curb plate is provided with first hinge hole near the position of second extension, connection structure's bottom is provided with the second hinge hole corresponding with first hinge hole, the hinge passes first hinge hole and second hinge hole so that connection structure articulates with two curb plates, hinge and locking lever parallel arrangement.
In order to achieve the above object, the present invention provides a unmanned aerial vehicle.
The unmanned aerial vehicle comprises a machine body, a machine arm and a quick folding structure for mounting the machine arm on the machine body, wherein the quick folding structure is any one of the quick folding structures provided by the invention.
The quick folding mechanism provided by the invention comprises: the device comprises a mounting structure, a connecting structure and a locking structure, wherein the mounting structure comprises two side plates which are arranged in parallel, and each side plate comprises a body, a first extension part connected with the body and a hook connected with the first extension part; the connecting structure is hinged between the two side plates through a hinge shaft, and a strip-shaped through hole is arranged at a position corresponding to the hook; the locking structure comprises a locking rod and an elastic piece, wherein the locking rod and the elastic piece are arranged in the strip-shaped through hole, both end parts of the locking rod extend out of the strip-shaped through hole, one end of the elastic piece is fixed to the connecting structure, the other end of the elastic piece is used for supporting the locking rod, and the locking rod can move in the length direction of the strip-shaped through hole when the elastic piece is elastically deformed. The connecting structure can rotate around the hinge shaft to enable the connecting structure to be converted between a locking state and a folding state, so that when the connecting structure is applied to an unmanned aerial vehicle, the quick folding of the horn can be realized, meanwhile, after the connecting structure is in the locking state, the end part of the locking rod is clamped into the hook, the elastic piece is in a state of partially recovering elastic deformation, under the elastic action of the elastic piece, the locking rod is subjected to thrust to the inner side of the hook, even if the machine body and the horn vibrate, the locking rod and the hook can be in the locking state, the stability of the hinge state of the connecting structure and the installation structure in the flying process of the unmanned aerial vehicle is guaranteed, and the safety of the aircraft is improved.
Drawings
FIG. 1 is a schematic diagram of a prior art horn folding quick-fold structure;
fig. 2 is a perspective view of a quick folding mechanism according to an embodiment of the present disclosure;
FIG. 3 is a side view of a quick-folding mechanism provided in an embodiment of the present application;
FIG. 4 is an enlarged view of section I of FIG. 3;
FIG. 5 is a perspective view of a mounting structure in a quick-folding mechanism provided in an embodiment of the present application;
fig. 6 is a perspective view of a connecting structure and a locking structure in the quick folding mechanism according to the embodiment of the present application;
FIG. 7 is a top view of the connecting structure and locking structure of the quick-folding mechanism according to the embodiments of the present application;
FIG. 8 is a cross-sectional view taken along the line A-A in FIG. 7;
FIG. 9 is a cross-sectional view taken along the B-B direction in FIG. 7;
FIG. 10 is a side view of the connecting structure and locking structure of the quick-break mechanism provided in an embodiment of the present application;
fig. 11 is a cross-sectional view taken along the direction C-C in fig. 10.
Description of the reference numerals
1-a mounting structure; 1a,1 b-side panels; 1 c-a bottom plate; 1 d-a back plate; 11-a side plate body; 12-a first extension; 13-hooking; 131-top; 132-a first side; 133-a second side; 14-a second extension; 15-a first hinge hole; a 2-linkage structure; 21-bar-shaped through holes; 22-limit grooves; 23-limiting mounting holes; 24-a second hinge hole; 25-arm mounting holes; 3-locking structure; 31-a locking lever; 32-elastic member.
Detailed Description
The invention will be further described with reference to the drawings and embodiments. The purpose and purpose of these exemplary embodiments are merely to illustrate the present invention and are not intended to limit the true scope of the present invention in any way.
In the present invention, unless otherwise indicated, the use of directional terms such as "upper and lower" generally refer to the definition of the quick-folding mechanism provided by the present invention under normal use conditions. "inner" and "outer" refer to the inner and outer relative to the outline of each component itself, and these directional terms are used for ease of understanding and should not be construed to limit the scope of the invention.
1-11, in one embodiment, the quick folding mechanism provided by the invention comprises a mounting structure 1, a connecting structure 2 and a locking structure 3, wherein when the quick folding mechanism is applied to an unmanned aerial vehicle, the mounting structure 1 is used for being fixed with a machine body of the unmanned aerial vehicle, the connecting structure 2 is used for mounting a horn of the unmanned aerial vehicle, meanwhile, the connecting structure 2 is hinged with the mounting structure 1, so that the connecting structure 2 is switched between a locking state and a folding state, namely, the horn is switched between an extending state and the folding state, and when the connecting structure 2 is in the locking state, namely, the horn is in the extending state, the locking structure 3 locks the state between the mounting structure 1 and the connecting structure 2 so as to keep the locking state; when the connection structure 2 is in the folded state, i.e. the horn is in the folded state, the locking structure 3 releases the locking relationship between the mounting structure 1 and the connection structure 2. Each structural part is described below.
The mounting structure 1 comprises two side plates 1a and 1b arranged in parallel, a connecting structure 2 is hinged between the two side plates 1a and 1b by a hinge shaft, and the connecting structure 2 is switched between a locking state and a folded state when the connecting structure 2 rotates between the two side plates 1a and 1b around the hinge shaft.
Each side plate comprises a body 11, a first extension 12 connected to the body 11 and a hook 13 connected to the first extension 12, respectively, preferably the body 11, the first extension 12 and the hook 13 are integrally formed. In a direction parallel to the axial direction of the hinge shaft, the connection structure 2 is provided with a bar-shaped through hole 21 at a position corresponding to the hook 13. The locking structure 3 comprises a locking rod 31 and an elastic piece 32 which are arranged in the strip-shaped through hole 21, one end of the elastic piece 32 is fixed on the connecting structure 2, the other end of the elastic piece 32 is used for supporting the locking rod 31, when the elastic piece 32 is elastically deformed, the locking rod 31 can move in the length direction of the strip-shaped through hole 21, both end parts of the locking rod 31 extend out of the strip-shaped through hole 21, when the outside is not applied with force to the locking rod 31, the locking rod 31 is positioned at the first side of the length direction of the strip-shaped through hole 21 under the elastic action of the elastic piece 32, both end parts of the locking rod 31 extending out of the strip-shaped through hole 21 are respectively clamped into one hook 13, and when the outside is applied with force to the locking rod 31 to compress the elastic piece 32, the locking rod 31 moves from the first side to the second side of the length direction of the strip-shaped through hole 21, and both end parts of the locking rod 31 are respectively separated from the hooks 13.
In the quick folding mechanism provided in this embodiment, a member to be folded is mounted on the connection structure 2, for example, a horn of an unmanned aerial vehicle is mounted on the connection structure 2 through a mounting hole 25 provided on the upper surface of the connection structure 2. The mounting structure 1 is fixed on a component when the piece to be folded is folded, for example, on the body of the unmanned aerial vehicle. The connection structure 2 is rotatable about the hinge axis to switch the connection structure 2 between a locked state and a folded state, i.e. the piece to be folded between an extended state and a folded state. When the connecting structure 2 is in the locked state, the elastic member 32 is in a state of partially recovering the elastic deformation, and at this time, the end of the locking rod 31 is clamped into the hook 13 under the elastic force of the elastic member. When the folding member is required to be folded, the elastic member 32 is compressed under external force, the locking rod 31 moves in the strip-shaped through hole 21, and after the locking rod is separated from the hook 13, the connecting structure 2 rotates around the hinge shaft until the connecting structure 2 is in a folded state.
When the horn of the unmanned aerial vehicle is folded by adopting the quick folding mechanism of the embodiment, in the use process, when the horn is in an extending state, the elastic piece 32 in a partially recovered elastic deformation state can apply the thrust to the locking rod 31 into the hook 13, and meanwhile, the end part of the locking rod 31 is clamped into the hook 13, and the locking rod 31 is close to the first side of the strip-shaped through hole 21; when the arm is converted from the extended state to the folded state, the two ends of the locking rod 31 are operated to apply pressure to the elastic piece 32, the elastic piece 32 is compressed, the locking rod 31 moves in the direction away from the hook in the strip-shaped through hole 21 to the second side close to the strip-shaped through hole 21, at the moment, the arm is operated to enable the connecting structure 2 to rotate around the hinge shaft, and meanwhile the locking rod 31 gradually breaks away from the hook along the outer surface of the hook 13, so that conversion from the extended state to the folded state is realized; when the arm is converted from the folded state to the extended state, the arm is operated to enable the connecting structure 2 to rotate around the hinge shaft, and meanwhile the locking rod 31 gradually slides inwards along the outer surface of the hook 13 until the two end parts of the locking rod 31 are clamped into the hook 13.
It can be seen from the above description that the arm is installed on the unmanned aerial vehicle through the quick folding mechanism, not only can the folding be realized through the convenient articulated rotation, but also the flight safety is improved due to the locking effect of the locking rod of the connecting structure on the hooks on two sides of the installation structure in the flight process of the unmanned aerial vehicle, so that the stability of the articulated state between the connecting structure and the installation structure is ensured.
When the quick folding mechanism of the above embodiment is applied to an unmanned aerial vehicle, the two side plates 1a and 1b may be directly provided with a fixing structure to be fixed on the body of the unmanned aerial vehicle, or the mounting structure 1 may further include a bottom plate 1c and a rear plate 1d connected to the two side plates respectively, and the rear plate 1d is provided with a fixing structure to be fixed on the body of the unmanned aerial vehicle. The two side plates 1a and 1b, the bottom plate 1c and the rear plate 1d enclose a space accommodating the connection structure 2, so that the fitting relationship of the connection structure 2 with the mounting structure 1 is more stable.
The first extension portion 12 is connected to the rear plate 1d, and each side plate further includes a second extension portion 14 disposed at a side away from the hook 13 and connected to the body 11, the second extension portion 14 being the same as the extension direction of the first extension portion 12, and when the connection structure 2 is switched between the locked state and the folded state, the end portion of the locking lever 31 enters and exits the hook 13 from the gap between the first extension portion 12 and the second extension portion 14.
A first hinge hole 15 is provided at a position of each side plate near the second extension portion 12, a second hinge hole 24 corresponding to the first hinge hole 15 is provided at the bottom of the connection structure 2, and a hinge shaft passes through the first hinge hole 15 and the second hinge hole 24 to hinge the connection structure 2 with the two side plates 1a and 1b, the hinge shaft being disposed in parallel with the locking lever 31.
In a preferred embodiment, the hook 13 includes a top 131, and a first side 132 and a second side 133 disposed at two sides of the top 131 and connected to the top 131, respectively, where the first side 132 is opposite to the second side 133, and an inner wall of the top 131, an inner wall of the first side 132, and an inner wall of the second side 133 form a space into which an end of the locking lever 31 is locked.
The distance between the inner wall of the first side 132 and the inner wall of the second side 133 gradually decreases in the direction in which the locking lever 31 enters the hanger 13, the minimum distance between the inner wall of the first side 132 and the inner wall of the second side 133 is smaller than the diameter of the locking lever 31, and the maximum distance between the inner wall of the first side 132 and the inner wall of the second side 133 is larger than the diameter of the locking lever 31. When the end of the locking rod 31 is clamped into the hook 13, the inner wall of the first side 132 and the inner wall of the second side 133 both have contact points (including point contact and surface contact) with the locking rod 31, and the distance between the two contact points is equal to the diameter of the locking rod 31.
In the use process, along with the continuous friction between the locking rod 31 and the inner walls of the first side portion 132 and the second side portion 133, for example, when the machine body vibrates in the flight process of the unmanned aerial vehicle, the locking rod 31 also vibrates in the hook 13, the vibration causes the continuous friction between the inner walls of the two side portions 31, the friction can cause the concave positions of the contact points between the inner walls of the first side portion 132 and/or the inner walls of the second side portion 133 and the locking rod 31, so that the distance between the first two contact points gradually increases, at this moment, the locking rod 31 moves towards the top of the hook 13 under the action of the elastic piece 32, and as the distance between the inner walls of the first side portion 132 and the inner walls of the second side portion 133 gradually decreases in the direction that the locking rod 31 enters the hook 13, the locking rod 31 moves towards the top of the hook 13 and then contacts with the inner walls of the first side portion 132 again, so that new contact points appear, the ends of the locking rod 31 are still clamped into the hook 13, the locking rod of the connecting structure still has a locking effect on the two sides of the mounting structure, the stability of the connecting structure is continuously ensured, and the situation of the hinging state between the connecting structure and the mounting structure cannot be avoided due to the vibration, and other factors can not be avoided.
The change of the distance between the inner wall of the first side portion 132 and the inner wall of the second side portion 133 may be achieved by providing the inner wall of the first side portion 132 and/or the inner wall of the second side portion 133 as an inclined surface or an arc surface (wherein, when the inner wall is the arc surface, the contact point of the locking lever and the inner wall is a point, and when the inner wall is the inclined surface, the contact point of the locking lever and the inner wall is a line). Preferably, as shown in fig. 3, the first side 132 is a side connected to the first extension 12, the inner wall of the first side 132, the inner wall of the first extension 12 and the inner wall of the strip-shaped through hole 21 are located on the same plane, so that the forming and the production are convenient, the inner wall of the top 131 is an arc surface, the inner wall of the second side 133 is an inclined surface or an arc surface, and the inner wall of the top 131, the inner wall of the first side 132 and the inner wall of the second side 133 can be gradually and smoothly transited. As shown in fig. 4, the inner wall of the second side portion 133 is a slope R2, so that the slope R2 gradually slopes outward from the hook as seen by comparing the slope R2 with a horizontal plane R1 where the contact point is located.
In another preferred embodiment, as shown in fig. 2, the outer surface of the hanger 13 opposite to the inner wall of the second side part 133 is a slope R3 inclined in a direction approaching the first side part 132. Through the setting of this inclined plane R3, make things convenient for locking lever 31 card to go into couple 13 and break away from couple 13.
In another preferred embodiment, the elastic member 32 is a compression spring, as shown in fig. 9 and 11, limiting grooves 22 are correspondingly disposed on two inner walls of the bar-shaped through hole 21, the width of the bar-shaped through hole 21 is smaller than the outer diameter of the spring, and the maximum distance between the two limiting grooves 22 is equal to the outer diameter of the spring, so that the two limiting grooves 22 limit the path of the spring for compressing or bouncing, and when the locking rod 31 moves in the bar-shaped through hole 21, the spring is elastically deformed along the two limiting grooves 22.
More preferably, as shown in fig. 8 and 9, in the length direction of the bar-shaped through hole 21, the connection structure 2 is further provided with a limit mounting hole 23 penetrating the bar-shaped through hole 21, through which the spring can be mounted into the connection structure 2, while the bottom of the spring can be fixed in the limit mounting hole 23, further defining the path of compression or ejection.
The invention also provides an embodiment of the unmanned aerial vehicle, the unmanned aerial vehicle in the embodiment comprises a machine body, a machine arm and a quick folding structure for mounting the machine arm on the machine body, the quick folding structure is the quick folding structure provided by any one of the embodiments, and related structures and effects are not repeated here.
As can be seen from the above description, the quick folding mechanism and the unmanned aerial vehicle provided by the invention have the following beneficial effects compared with the prior art: in the flight process of the unmanned aerial vehicle, the locking effect of the locking rod of the connecting structure on the hooks on two sides of the mounting structure in the quick folding mechanism ensures the stability of the hinged state between the connecting structure and the mounting structure, and improves the flight safety.
The order of the above embodiments is merely for convenience of description, and does not represent the advantages or disadvantages of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting thereof; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A quick-folding mechanism, comprising: a mounting structure (1), a connecting structure (2) and a locking structure (3), wherein,
the mounting structure (1) comprises two side plates (1 a,1 b) which are arranged in parallel, wherein each side plate (1 a,1 b) comprises a body (11), a first extension part (12) connected with the body (11) and a hook (13) connected with the first extension part (12);
the connecting structure (2) is hinged between the two side plates (1 a,1 b) through a hinge shaft, and the connecting structure (2) is provided with a strip-shaped through hole (21) in the direction parallel to the axial direction of the hinge shaft;
the locking structure (3) comprises a locking rod (31) and an elastic piece (32) which are arranged in the strip-shaped through hole (21), both end parts of the locking rod (31) extend out of the strip-shaped through hole (21), one end of the elastic piece (32) is fixed on the connecting structure (2), the other end of the elastic piece is used for supporting the locking rod (31), and when the elastic piece (32) is elastically deformed, the locking rod (31) can move in the length direction of the strip-shaped through hole (21);
the connecting structure (2) can rotate around the hinge shaft so as to enable the connecting structure (2) to be switched between a locking state and a folding state, when the connecting structure (2) is in the locking state, the end part of the locking rod (31) is clamped into the hook (13), the elastic piece (32) is in a state of partially recovering elastic deformation, when the connecting structure (2) is in the folding state, the end part of the locking rod (31) is separated from the hook (13),
the hook (13) comprises a top (131) and a first side (132) and a second side (133) connected with the top (131), the first side (132) and the second side (133) are arranged opposite to each other, the inner walls of the first side (132) and the second side (133) both have contact points with the locking rod (31), the distance between the inner walls of the first side (132) and the second side (133) gradually decreases in the direction that the locking rod (31) enters the hook (13), the minimum distance between the inner walls of the first side (132) and the second side (133) is smaller than the diameter of the locking rod (31), the maximum distance between the inner walls of the first side (132) and the second side (133) is larger than the diameter of the locking rod (31), and
in the length direction of the strip-shaped through hole (21), the connecting structure (2) is further provided with a limiting mounting hole (23) communicated with the strip-shaped through hole (21), and a part of the elastic piece (32) is fixed in the limiting mounting hole (23).
2. The quick-folding mechanism according to claim 1, characterized in that the inner wall of the first side (132) and/or the inner wall of the second side (133) is beveled or cambered.
3. The quick-folding mechanism according to claim 2, wherein the first side portion (132) is connected to the first extension portion (12), the inner wall of the first side portion (132), the inner wall of the first extension portion (12), and the inner wall of one side of the strip-shaped through hole (21) are located on the same plane, and the inner wall of the second side portion (133) is an inclined plane or an arc surface.
4. A quick-folding mechanism according to claim 3, characterized in that the inner wall of the top (131) is a cambered surface.
5. A quick-folding mechanism according to claim 3, characterized in that the outer surface of the hook (13) opposite to the inner wall of the second side portion (133) is a slope inclined in a direction approaching the first side portion (132).
6. The quick folding mechanism according to claim 1, wherein the elastic member (32) is a spring, two side inner walls of the strip-shaped through hole (21) are respectively and correspondingly provided with a limit groove (22), a maximum distance between the two limit grooves (22) is equal to an outer diameter of the spring, and the spring is elastically deformed along the two limit grooves (22) when the locking rod (31) moves in the strip-shaped through hole (21).
7. Quick-folding mechanism according to claim 1, characterized in that the mounting structure (1) further comprises a bottom plate (1 c) and a rear plate (1 d) connected to the two side plates (1 a,1 b), respectively, the two side plates (1 a,1 b), the bottom plate (1 c) and the rear plate (1 d) enclosing a space accommodating the connecting structure (2), the first extension (12) being connected to the rear plate (1 d), each side plate further comprising a second extension (14) arranged on the side remote from the hook (13) and connected to the body (11), the second extension (14) being identical to the extension direction of the first extension (12), a first hinge hole (15) being provided at the position of each side plate close to the second extension (14), a second hinge hole (24) corresponding to the first hinge hole (15) being provided at the bottom of the connecting structure (2), the first hinge shaft (31) being arranged to connect the two side plates (1) parallel to the first hinge hole (15).
8. An unmanned aerial vehicle, comprising a body, a horn and a quick-folding structure for mounting the horn on the body, wherein the quick-folding structure is the quick-folding structure according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611186915.1A CN106741838B (en) | 2016-12-20 | 2016-12-20 | Quick folding mechanism and unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611186915.1A CN106741838B (en) | 2016-12-20 | 2016-12-20 | Quick folding mechanism and unmanned aerial vehicle |
Publications (2)
| Publication Number | Publication Date |
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| CN106741838A CN106741838A (en) | 2017-05-31 |
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| NO343743B1 (en) * | 2017-07-17 | 2019-05-27 | Griff Aviation As | An aerial vehicle, advantageously a multicopter with a swingable arm mount |
| US10745102B2 (en) | 2017-07-17 | 2020-08-18 | Griff Aviation As | Swingable arm mount for an aerial vehicle having a lift generating means, and an aerial vehicle, advantageously a multicopter with a swingable arm mount |
| CN107933876B (en) * | 2017-11-30 | 2020-01-24 | 深圳市华业航空科技有限公司 | Unmanned aerial vehicle arm folding structure with movable ejector pin and folding method thereof |
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