SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve or alleviate above-mentioned technical problem.
The utility model adopts the measures that the adjustable linkage lifting clamping mechanism comprises a limiting platform and a movable parking apron; the movable parking apron can ascend and descend relative to the limiting platform;
also comprises a clamping mechanism, the clamping mechanism comprises,
the lifting slide block is in linear sliding connection with the movable parking apron along the height direction;
the two clamps are hinged with the lifting slide block respectively and are arranged oppositely;
the clamp linkage piece is in linear sliding connection with the movable parking apron along the height direction, and a fastening transition gap is formed between the bottom end of the clamp linkage piece and the limiting platform;
the clamp connecting piece is respectively hinged with the clamp and the clamp linkage piece;
the two clamps are respectively hinged with the clamp linkage piece; in the process that the movable parking apron moves relative to the limiting platform to enable the distance between the movable parking apron and the limiting platform to be reduced, the lifting slide block firstly protrudes from the movable parking apron, then the clamp linkage piece abuts against the limiting platform, and the clamp linkage piece slides linearly relative to the movable parking apron to drive the two clamps to rotate relatively.
The utility model discloses the effect that reaches does, can realize the pretension to collector shoe, realizes rectifying when unmanned aerial vehicle is not accurate positioning after retrieving the entering movable air park easily to can realize reliable centre gripping and charge.
Optionally, the clamping mechanism further comprises a base fixedly connected with the movable apron and located below the movable apron, and the clamp linkage piece passes through the base in a fitting manner.
The stability of the linear motion of the clamp linkage part can be improved.
Optionally, the clamping mechanism further includes a clamp resetting elastic member, and when the movable parking apron is in the initial state, two ends of the clamp resetting elastic member respectively abut against the clamp linkage member and the base, so that the clamp linkage member has a tendency of moving upward relative to the movable parking apron, and the clamp has a portion abutting against the lifting slider.
The clamp can be ensured not to tilt from the lifting slide block, and the top end surface of the lifting slide block is ensured to be flush with the top end surface of the lifting slide block.
Optionally, the clamping mechanism further includes a pre-tightening elastic piece, the pre-tightening elastic piece is arranged on the clamp linkage piece, the clamp linkage piece can provide elastic force enabling the clamp linkage piece to have a downward movement trend relative to the movable apron, and in the process that the movable apron changes from the initial state to the fastening state, a process that the elastic force provided by the pre-tightening elastic piece is larger than the elastic force provided by the clamp resetting elastic piece exists.
The clamp can not be tilted from the lifting slide block in the initial state, and meanwhile, the pre-tightening state is realized through a simple structure.
Optionally, the pre-tightening elastic piece is a spring and is sleeved on the clamp linkage piece, when the movable parking apron is in an initial state, one end of the pre-tightening elastic piece is placed at the bottom of the clamp linkage piece, and a fastening transition gap is formed between the other end of the pre-tightening elastic piece and the base.
Optionally, two ends of the pre-tightening elastic piece respectively abut against the bottom of the clamp linkage piece and the base, so that when the clamp starts to rotate and tilt, a gap exists between the bottom end of the clamp linkage piece and the limiting platform.
The tilting angle of the clamp can be ensured to be stable, and the tilting angle of the clamp can be set conveniently according to needs.
Optionally, the base of the clamp linkage is height adjustable.
The elasticity provided by the pre-tightening elastic piece can be adjusted according to the requirement.
Optionally, the clamping mechanism further comprises a slider return elastic piece, one part of the slider return elastic piece is connected with the lifting slider, and the other part of the slider return elastic piece is connected with the movable parking apron or the base, so that the lifting slider has a tendency of moving downwards relative to the movable parking apron.
The automatic reset of the lifting slide block can be realized.
Optionally, the lifting slider is fixedly provided with a lifting linkage piece, the lifting linkage piece passes through the movable parking apron in a fitting manner, the lifting linkage piece is fixedly connected with the limiting platform, or a gap is formed between the bottom end of the lifting linkage piece and the limiting platform.
Optionally, the clamp connector, and the clamp linkage are all made of conductive materials to form a conductive loop.
Can supply power to the collector shoe that will be described through the clamp, and then charge unmanned aerial vehicle.
To sum up, the utility model discloses can reach following technological effect, can realize the pretension to collector shoe, realize easily that unmanned aerial vehicle is not rectifying when accurate positioning after retrieving the entering movable air park to can realize reliable centre gripping and charge. The clamp can not be tilted from the lifting slide block in the initial state, and meanwhile, the pre-tightening state is realized through a simple structure. The tilting angle of the clamp can be ensured to be stable, and the tilting angle of the clamp can be set conveniently according to needs.
Detailed Description
The following description will be made in conjunction with the accompanying drawings.
As shown in fig. 1, as a specific embodiment, the adjustable linkage lifting clamping mechanism of the embodiment of the present invention includes a limiting platform 19 and a movable apron 1; the movable apron 1 can be raised and lowered relative to the limit platform 19. The movable apron 1 is movable up and down with respect to the limit platform 19, which means that the movable apron 1 is movable with respect to the limit platform 19, and the movement has a vector perpendicular to the limit platform 19, but the movement does not change the attitude of the movable apron 1. For example, the movable apron 1 can maintain an attitude parallel to the limit platform 19, move linearly perpendicular to the limit platform 19, or move linearly inclined to the limit platform 19. It should be noted that the limit platform 19 is usually fixed to a fixed object (not shown in the drawings) such as the ground and the movable apron 1 is movable, but it is not excluded that the movable apron 1 is fixed to a fixed object such as the ground and the limit platform 19 is movable.
In a specific embodiment, the movable apron 1 and the limit platform 19 are connected through an electric cylinder (not shown in the drawings) or other conventional power structures, so that the movable apron 1 can be lifted relative to the limit platform 19.
The utility model discloses a linkage lift fixture with adjustable embodiment still includes fixture 2, and this fixture 2 includes, lift slider 21, two clamps 22, clamp linkage 23 and clamp connecting piece 24.
And a lifting slider 21 linearly slidably connected to the movable apron 1 in the height direction. The linear sliding connection with the movable apron 1 in the height direction means that the lifting slider 21 can slide linearly in the height direction with respect to the movable apron 1. The process of the linear sliding of the lifting slide block 21 relative to the movable apron 1 along the height direction has the process of synchronous movement with the limit platform 19. For example, the lifting slider 21 may be provided with a power for sliding linearly in the height direction with respect to the movable apron 1 by an air cylinder or the like.
As a specific embodiment, the lifting slider 21 is fixedly provided with a lifting linkage 211, the lifting linkage 211 passes through the movable tarmac 1 in a fitting manner, so that the lifting slider 21 and the movable tarmac 1 are linearly slidably connected in the height direction, the lifting linkage 211 is fixedly connected with the limit platform 19, so that the lifting slider 21 and the limit platform 19 synchronously move in the whole process of the movement process, or a gap is provided between the bottom end of the lifting linkage 211 and the limit platform 19, and when the bottom end of the lifting linkage 211 abuts against the limit platform 19, the lifting slider 21 and the limit platform 19 synchronously move, so that the lifting slider 21 and the limit platform 19 synchronously move in the process of the linear sliding of the lifting slider 21 relative to the movable tarmac 1 in the height direction.
The gripping means 2 further comprise two gripping tongs 22, which gripping tongs 22 are respectively articulated to the lifting slider 21 and are arranged opposite one another, for example, the two gripping tongs 22 are mirror images of one another about a central plane (LINE two 2 shown in fig. 6).
The clamping mechanism 2 further comprises a clamp linkage piece 23 which is in linear sliding connection with the movable parking apron 1 along the height direction, and a fastening transition gap 233 is arranged between the bottom end of the clamp linkage piece 23 and the limiting platform 19.
The clamping mechanism 2 further comprises a clamp connecting member 24, which is respectively hinged with the clamp 22 and the clamp linkage member 23.
The two grippers 22 are each articulated to a gripper linkage 23.
In the process that the movable apron 1 moves relative to the limit platform 19 so that the distance between the movable apron 1 and the limit platform 19 is reduced, the lifting slide block 21 firstly protrudes from the movable apron 1 (protrudes due to linear sliding), then the clamp linkage 23 abuts against the limit platform 19, and the clamp linkage 23 slides linearly relative to the movable apron 1 so as to drive the two clamps 22 to rotate relatively. The relative rotation of the two clamps 22 means that the outer ends of the clamps 22 are rotated towards the other clamp 22 and the outer ends of the clamps 22 are made higher than the lifting slider 21. It is noted that the top end of jaw attachment member 24 is inwardly adjacent to the bottom end of jaw attachment member 24, i.e., adjacent to the central plane indicated by LINE two LINE 2.
The operation principle is that, as shown in fig. 6, the movable apron 1 is in the initial state, and the distance between the movable apron 1 and the limit platform 19 is the largest. When the drone (only the collector shoe 91, the landing gear 92, and the portion of the power wing 99 are shown) is landed on the movable tarmac 1, the collector shoe 91 (typically in the form of a strip in the depth direction) is located directly above the clamps 22 (in the area corresponding to the distance 223 between the outer ends of the clamps in fig. 6). The shutdown deviation 912 is formed assuming that the center of the collector shoe 91 is deviated from the center plane (LINE two 2 shown in fig. 7) as a shutdown target.
As shown in fig. 7, after the movable tarmac 1 moves downward, the distance between the movable tarmac 1 and the limiting platform 19 is centered, at this time, the lifting slider 21 protrudes from the movable tarmac 1, for example, the lifting slider 21 protrudes from the movable tarmac 1 due to the bottom end of the lifting link 211 abutting against the limiting platform 19, and at the same time, the clamp link 23 moves downward relative to the movable tarmac 1, for example, due to a structure or a cylinder that depends on an elastic force, which will be described later, the clamp link 23 moves downward relative to the movable tarmac 1, so that the two clamps 22 rotate and the included angle between the two clamps 22 decreases until one of the two clamps 22 contacts the current collector 91, at this time, the distance between the movable tarmac 1 and the limiting platform 19 is centered, and the movable tarmac 1 is in a pre-tightening state. At this time, the grippers 22 are inclined with respect to the movable apron 1, and the collector shoe 91 can be slid by the self weight of the unmanned aerial vehicle 9, thereby reducing the stop deviation 912.
As shown in fig. 8, after the movable apron 1 continues to move downward, the distance between the movable apron 1 and the limiting platform 19 is small, the clamp linkage 23 continues to move downward relative to the movable apron 1, so that the two continued clamps 22 rotate, the included angle between the two clamps 22 is reduced, until the two clamps 22 both abut against the collector shoe 91, at this time, the distance between the movable apron 1 and the limiting platform 19 is minimum, and the movable apron 1 is in a fastened state.
The aforesaid can be seen, the utility model discloses a linkage lift fixture with adjustable can realize the pretension to collecting shoe 91, realize easily that unmanned aerial vehicle is not rectifying when accurate positioning after retrieving and getting into movable air park 1 to can realize reliable centre gripping and charge.
As is apparent from the above description, if the center of the collector shoe 91 coincides with the center of the target of stopping (the LINE two LINE2 shown in fig. 7) when the movable apron 1 is in the initial state, reliable clamping and charging can be achieved without the deviation 912 of stopping.
As one specific embodiment, referring to fig. 3, the clamping mechanism 2 further includes a base 29 fixedly connected to the movable apron 1 and located below the movable apron 1, for example, the base 29 is fixedly connected to the movable apron 1 through a base connector 299. The clamp linkage 23 passes through the base 29 in a fitting manner, so that guiding is realized, the clamp linkage 23 is prevented from being inclined, and the stability of linear motion of the clamp linkage 23 can be improved. Of course, the lifting link 211 is guided snugly through the base 29.
As a specific embodiment, referring to fig. 5, the clamping mechanism 2 further includes a clamp return elastic member 25, and both ends of the clamp return elastic member 25 respectively abut against the clamp link 23 and the base 29 when the movable tarmac 1 is in the initial state, so that the clamp link 23 tends to move upward relative to the movable tarmac 1, and the clamp 22 has a portion abutting against the lifting slider 21. For example, the bottom end of the clamp 22 abuts an inwardly projecting step in the receiving groove 219. The clamp linkage 23 has a tendency to move upward relative to the movable tarmac 1 so that the clamp 22 has a tendency to abut against the lifter shoe 21, and it can be ensured that the clamp 22 does not tilt from the lifter shoe 21, for example, that the tip surface of the lifter shoe 21 is flush with the tip surface of the movable tarmac 1. The clip return elastic member 25 is not limited to a spring, and may be a member having elasticity such as an elastic piece.
As one specific embodiment, referring to fig. 9, the clamping mechanism 2 further includes a pre-tightening elastic piece 26, the pre-tightening elastic piece 26 is disposed on the clamp linkage 23, the pre-tightening elastic piece 26 can provide an elastic force that makes the clamp linkage 23 have a downward movement tendency relative to the movable tarmac 1, and during the process of changing the movable tarmac 1 from the initial state to the fastened state, there is a process that the elastic force provided by the pre-tightening elastic piece 26 is greater than the elastic force provided by the clamp return elastic piece 25. For example, the pre-tightening elastic piece 26 is a spring and is sleeved on the clamp linkage 23, when the movable tarmac 1 is in the initial state, one end of the pre-tightening elastic piece 26 is placed at the bottom of the clamp linkage 23, and a fastening transition gap 233 is formed between the other end of the pre-tightening elastic piece 26 and the base 29. In the process that the movable parking apron 1 is changed from the initial state to the fastening state, the clamp resetting elastic piece 25 gradually extends to the natural state, and the provided elastic force is zero; the pre-tightening elastic piece 26 is abutted against the base 29 to provide an elastic force due to the movement of the clamp linkage piece 23, so that a process that the elastic force provided by the pre-tightening elastic piece 26 is larger than the elastic force provided by the clamp resetting elastic piece 25 exists, at this time, the clamp linkage piece 23 moves downwards relative to the movable apron 1, so that the clamp 22 rotates and tilts, and pre-tightening on the collector shoe 91 is realized (when the movable apron 1 is in a pre-tightening state). The clamp 22 can be secured from tilting up from the up-down slider 21 in the initial state, and the pretensioned state can be realized by a simple structure without providing an additional air cylinder and a control device for the air cylinder.
As a specific embodiment, referring to fig. 7, both ends of the pre-tightening elastic piece 26 respectively abut against the bottom of the clamp linkage 23 and the base 29, so that when the clamp 22 starts to rotate and tilt, a gap exists between the bottom end of the clamp linkage 23 and the limit platform 19. When the clamp 22 starts to rotate and tilt, a gap exists between the bottom end of the clamp linkage piece 23 and the limiting platform 19, and the elastic force provided by the pre-tightening elastic piece 26 can be kept stable in the process that the movable tarmac 1 continues to move downwards until the bottom end of the clamp linkage piece 23 abuts against the limiting platform 19, so that the tilting angle of the clamp 22 can be ensured to be stable, and the tilting angle of the clamp 22 can be set conveniently according to needs.
As one specific embodiment, the bottom of the clamp linkage 23 is height adjustable. For example, the bottom of the clamp linkage 23 is a nut, and the bottom of the clamp linkage 23 is adjustable by rotating the nut, or the clamp linkage 23 is a bolt as a whole, and the bottom of the clamp linkage 23 is adjustable by rotating the clamp linkage 23 through a threaded connection with an adjusting sleeve 28 (shown in fig. 4) fixedly connected with the hinge lug 231. The spring force provided by the preloaded spring 26 can be adjusted as desired.
As a specific embodiment, the clamping mechanism 2 further comprises a slider return spring 27, and one part of the slider return spring 27 is connected with the lifting slider 21 and the other part is connected with the movable tarmac 1 or the base 29, so that the lifting slider 21 has a tendency to move downward relative to the movable tarmac 1. The automatic reset of the lifting slider 21 can be realized.
In one embodiment, the clamp 22, the clamp connector 24, and the clamp link 23 are made of conductive material to form a conductive loop, and the clamp link 23 is connected to a controllable power source. The controllable power supply is a conventional power supply capable of outputting a desired current or voltage in accordance with a control signal. Such as a PLC controlled 24V dc power supply. The power can be supplied to the collector shoe 91 described later by the clamp 22, and the unmanned aerial vehicle 9 can be charged.
As used in the present invention, the term: first, second, etc. do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
As used in the present invention, the term: one, etc. do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.
As in the present invention, the term indicating orientation or position is used: top, bottom, side, longitudinal, lateral, middle, center, outer, inner, horizontal, vertical, left, right, above, below, and the like are intended to reflect relative positions, not absolute positions.
The term as used in the present invention: approximate, whole, approximate, close, etc., are words of definition that specify the presence of stated features but allow for certain deviations. The amount of tolerance for a certain deviation may vary depending on the particular context; for example, the specific context in which deviations from size may be relied upon includes, but is not limited to, national standards for dimensional tolerances.