Folding type catapult rack device for assisted take-off of flapping-wing unmanned aerial vehicle

Abstract

The utility model provides a folding type catapult rack device for assisting takeoff of a flapping-wing unmanned aerial vehicle. The folding type catapult rack device comprises a track bottom plate, a guide rail, a guide rail shaft, a folding supporting and fixing assembly, a lifting table, a tripod supporting assembly, a lock catch fixing assembly, a catapult spring, a catapult baffle and a stop block spring. A guide rail and a guide rail shaft are arranged on the front face of a rail bottom plate, so that an ejection spring drives a lock catch fixing assembly to make contact with an ejection baffle, and kinetic energy is provided for takeoff of the flapping-wing unmanned aerial vehicle; the lifting platform is arranged at one end of the reverse side of the track bottom plate, the tripod supporting assembly is arranged at the other end of the reverse side of the track bottom plate, the mounting groove is formed in the upper portion of the folding supporting and fixing assembly, and the mounting hole matched with the mounting groove is formed in the lifting platform so that the height between the track bottom plate and the ground can be adjusted, and therefore the inclination angle of the track bottom plate can be adjusted. And the inclination angle of the lock catch fixing assembly is adjusted, so that the flapping-wing unmanned aerial vehicle has a proper take-off inclination angle.

Description

TECHNICAL FIELD

[0001] The utility model belongs to unmanned plane catapult frame technical field, concretely relates to a kind of folding catapult frame device for flapping wing unmanned plane boost take-off. BACKGROUND

[0002] Compared with fixed wing and rotary wing unmanned plane, flapping wing unmanned plane has the advantages of high efficiency, agility and concealment, can perform tasks such as large-scale reconnaissance detection, safety inspection and post-disaster search, and can be widely applied in military field, and also has great application prospect in civil field such as agriculture and forestry.

[0003] When unmanned plane takes off, catapult take-off is a common way, the traditional unmanned plane catapult frame device is set very low and cannot be adjusted, the inclination angle of catapult take-off is fixed, and the ground space is large when being stored, not easy to carry, however, flapping wing unmanned plane needs to flap wing before taking off, which will generate certain thrust and lift, resulting in large motion amplitude of fuselage, it is very difficult to keep balance on catapult frame device, and low height setting of catapult frame device is very easy to cause wing to contact ground, which is not conducive to the take-off of flapping wing unmanned plane.

[0004] Therefore, how to provide a kind of folding catapult frame device for flapping wing unmanned plane boost take-off to adjust the height and inclination angle of flapping wing unmanned plane catapult take-off and maintain fuselage stability is the technical problem that the person skilled in the art needs to solve urgently. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of folding catapult frame device for flapping wing unmanned plane boost take-off to at least solve the above-mentioned one kind of technical problem.

[0006] In order to achieve the above object, the utility model provides a kind of folding catapult frame device for flapping wing unmanned aerial vehicle boost-off, the catapult frame device includes: track bottom plate, the front of track bottom plate is fixedly arranged two parallel guide rails, guide rail shaft is arranged between the two parallel guide rails, one end of guide rail shaft is fixedly connected with the front of track bottom plate, the other end of guide rail shaft is fixedly connected with the other end of the front of track bottom plate;Folding support fixed component, the upper portion of folding support fixed component is provided with mounting groove, lifting platform, one end is provided with mounting hole compatible with the mounting groove, and the other end is hingedly connected with the other end of the back of track bottom plate;Tripod support component, top is hingedly connected with the other end of the back of track bottom plate;Lock catch fixed component, the bottom of lock catch fixed component passes through guide rail shaft and is slidably connected with guide rail, the top of lock catch fixed component is detachably connected with the fuselage of flapping wing unmanned aerial vehicle;Ejection spring is coaxially sleeved on guide rail shaft, and one end of ejection spring is fixedly connected with one end of guide rail shaft, and the other end of ejection spring is fixedly connected with one side of lock catch fixed component;Ejection baffle, ejection baffle passes through guide rail shaft and is slidably connected with guide rail, and is arranged on the other side of lock catch fixed component;Block spring is coaxially sleeved on guide rail shaft, and one end of block spring is fixedly connected with the other end of guide rail shaft, and the other end of block spring is fixedly connected with baffle.

[0007] As a further technical scheme of the utility model is: the lock catch fixed component includes: the bottom of the shell is slidably connected with the guide rail, and one side of the shell is fixedly connected with the other end of the ejection spring;Lock catch part is arranged in the interior of shell;Driving part, the driving part drives the lock catch part to release flapping wing unmanned aerial vehicle.

[0008] As a further technical scheme of the utility model is: the driving part includes: push block spring, one end is fixedly connected with the shell;Limiting column is fixedly arranged in the interior of shell;Push block is located between the inner wall of shell and limiting column, one end of push block is provided with limiting lug, and slot hole, first limiting slot and second limiting slot are sequentially arranged in the middle part of push block;The push block of one side provided with the limiting lug is fixedly connected with the other end of push block spring.

[0009] As a further technical scheme of the utility model is: the lock catch spare includes: long lock catch, one end is arranged in the inside of the casing, the other end is buckled type connection with the flapping wing unmanned aerial vehicle, coaxial sleeve first slider and first lock catch spring are established on the long lock catch, one end of the first lock catch spring is fixedly connected with the middle part of the long lock catch, the other end of the first lock catch spring is fixedly connected with the first face of the first slider, the first face of the first slider and the second face of the first slider are perpendicular, and the first horizontal shaft is located in the first limiting groove, short lock catch, one end is arranged in the inside of the casing, the other end is buckled type connection with the flapping wing unmanned aerial vehicle, coaxial sleeve second slider and second lock catch spring are established on the short lock catch, one end of the second lock catch spring is fixedly connected with the middle part of the short lock catch, the other end of the second lock catch spring is fixedly connected with the first face of the second slider, the second face of the second slider is provided with the second horizontal shaft, the first face of the second slider and the second face of the second slider are perpendicular, and the second horizontal shaft is located in the second limiting groove, trigger, is in " V " type, the closed tip of the trigger is rotationally connected with the casing, the open first end of the trigger is provided with a limiting protrusion, and the limiting protrusion is located in the slot hole, and the open second end of the trigger is provided with a trigger spring, one end of the trigger spring is fixedly connected with the open second end of the trigger, and the other end of the trigger spring is fixedly connected with the outer wall of the casing.

[0010] As a further technical scheme of the utility model is: the folding support fixing assembly includes: vertical plate, the vertical plate includes vertical plate and horizontal plate, one end of the vertical plate is fixedly connected with the horizontal plate perpendicularly, the other end of the vertical plate is provided with a mounting groove, and the mounting groove is bolted with the mounting hole, the surface of the horizontal plate is provided with a hinged protrusion, support fixing plate, fixedly connected with the middle part of the vertical plate, support side plate, one end is hingedly connected with the support fixing plate, support bottom plate, one end is hingedly connected with the other end of the support side plate, the other end of the support bottom plate is provided with a buckle, and the buckle is hingedly connected with the hinged protrusion, two balance side rod members are distributed on the two sides of the horizontal plate, one end of one of the balance side rod members is hingedly connected with one side of the horizontal plate, and one end of the other balance side rod member is hingedly connected with the other side of the horizontal plate, wherein the lower part of the vertical plate, the support side plate and the support bottom plate form a right triangle.

[0011] As a further technical scheme of the utility model is: every balance side rod piece includes: support side rod, one end of support side rod is hinged with horizontal plate, the other end of support side rod sets up anti -drop protrusion;Connecting rod slider, connecting rod slider is set on support side rod;First connecting rod, one end of first connecting rod is hinged with one end of support side rod;Second connecting rod, one end of second connecting rod is hinged with the other end of first connecting rod, and the other end is hinged with connecting rod slider;Third connecting rod, one end of third connecting rod is hinged with connecting rod slider;Fourth connecting rod, one end of fourth connecting rod is hinged with the other end of third connecting rod, and the other end is hinged with one end of support side rod;Wherein, support side rod, first connecting rod, second connecting rod, third connecting rod and fourth connecting rod are in the same plane.

[0012] As a further technical scheme of the utility model is: the tripod support assembly includes: middle shaft rod, one end is hinged with the other end of the reverse side of track bottom plate, the other end of middle shaft rod sets up first locking knob;Middle shaft extension rod, one end of middle shaft extension rod is inserted into middle shaft rod from the other end of middle shaft rod, and is fixed through first locking knob;The other end of middle shaft extension rod sets up second locking knob;Three support outer rods, one end of every support outer rod is hinged with first locking knob, and the other end contacts with ground;Three support inner rods, one end of every support inner rod is hinged with second locking knob, and the other end is buckled with corresponding support outer rod.

[0013] As a further technical scheme of the utility model is: the inside of every support outer rod is provided with limiting hole, and the other end of every support inner rod is slid in corresponding support outer rod to be clamped and fixed in corresponding limiting hole.

[0014] As a further technical scheme of the utility model is: the ejector frame device further includes: lock catch fixing slide block, the top surface of lock catch fixing slide block is fixedly connected with lock catch fixing assembly, and the bottom surface of lock catch fixing slide block is slidably connected with guide rail;Baffle slide block, the top surface of baffle slide block is fixedly connected with ejector baffle, and the bottom surface of baffle slide block is slidably connected with guide rail.

[0015] As a further technical scheme of the utility model is: the ejector frame device further includes: bottom plate movable hinge, one end of the reverse side of track bottom plate on one side of bottom plate movable hinge is fixedly connected, and the other side of bottom plate movable hinge is hingedly connected with the other end of lifting platform;Tripod movable hinge, the other end of the reverse side of track bottom plate on one side of tripod movable hinge is fixedly connected, and the other side of tripod movable hinge is hingedly connected with the top end of tripod support assembly.

[0016] Advantages:

[0017] The utility model provides a kind of folding catapult frame device for flapping wing unmanned plane boost take-off, including track bottom plate, guide rail, guide rail shaft, folding support fixed component, lifting platform, tripod support component, lock catch fixed component, catapult spring, catapult baffle and block spring;Two parallel guide rails are fixedly arranged in the front of track bottom plate, and guide rail shaft is arranged between the two parallel guide rails, the bottom of lock catch fixed component is slidably connected with guide rail through guide rail shaft, the top of lock catch fixed component is detachably connected with the fuselage of flapping wing unmanned plane, to guide lock catch fixed component, it is favorable to the catapult take-off of flapping wing unmanned plane;Catapult baffle is slidably connected with guide rail through guide rail shaft, and it is arranged on the other side of lock catch fixed component, and catapult spring and block spring are coaxially sleeved on guide rail shaft, and one end of catapult spring is fixedly connected with one end of guide rail shaft, the other end is fixedly connected with one side of lock catch fixed component, one end of block spring is fixedly connected with the other end of guide rail shaft, and the other end is fixedly connected with baffle, by sequentially sleeving catapult spring, lock catch fixed component, catapult baffle and block spring on guide rail shaft, lock catch fixed component is slid on guide rail shaft, to provide kinetic energy for the take-off of flapping wing unmanned plane;Mounting groove is arranged on the upper portion of folding support fixed component, and mounting hole that is compatible with mounting groove is arranged on one end of lifting platform, so that folding support fixed component is fixedly connected with lifting platform, the height of track bottom plate and ground is adjusted by the fixed point of mounting groove and mounting hole, the other end of lifting platform is hingedly connected with one end of the reverse side of track bottom plate, the top of tripod support component is hingedly connected with the other end of the reverse side of track bottom plate, it is favorable to the subsequent storage folding of device;By adjusting the relative height of folding support fixed component and tripod support component, the inclination angle of track bottom plate is adjusted, so that the inclination angle of lock catch fixed component is adjusted, so that flapping wing unmanned plane has suitable take-off inclination angle.

[0018] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the utility model more obvious and easy to understand, the specific embodiment of the utility model is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments or prior art of the present specification, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0020] Figure 1The overall structure schematic diagram of the folding type ejection frame device for flapping wing unmanned plane boost take-off is provided for the embodiment of the utility model Figure 1 ;

[0021] Figure 2 The overall structure schematic diagram of the folding type ejection frame device for flapping wing unmanned plane boost take-off is provided for the embodiment of the utility model Figure 2 ;

[0022] Figure 3 The partial structure schematic diagram of the folding type ejection frame device for flapping wing unmanned plane boost take-off is provided for the embodiment of the utility model

[0023] Figure 4 The partial structure schematic diagram of the locking buckle fixing assembly in the embodiment of the utility model Figure 1 ;

[0024] Figure 5 The partial structure schematic diagram of the locking buckle fixing assembly in the embodiment of the utility model Figure 2 ;

[0025] Figure 6 The partial structure schematic diagram of the locking buckle fixing assembly in the embodiment of the utility model Figure 3 ;

[0026] Figure 7 The three-dimensional schematic diagram of the locking buckle in the undogged state in the embodiment of the utility model

[0027] Figure 8 The partial sectional view schematic diagram of the locking buckle in the undogged state in the embodiment of the utility model

[0028] Figure 9 The partial sectional view top view of the locking buckle in the undogged state in the embodiment of the utility model

[0029] Figure 10 The three-dimensional schematic diagram of the locking buckle in the locked state in the embodiment of the utility model

[0030] Figure 11 The partial sectional view schematic diagram of the locking buckle in the locked state in the embodiment of the utility model

[0031] Figure 12 The partial sectional view top view of the locking buckle in the locked state in the embodiment of the utility model

[0032] Reference signs:

[0033] 1, track bottom plate

[0034] 2, guide rail

[0035] 3, guide rail shaft

[0036] 4. The folding support fixing assembly; 41. The vertical plate; 411. The vertical plate; 412. The horizontal plate; 413. The hinge protrusion; 42. The support fixing plate; 43. The support side plate; 44. The support bottom plate; 441. The buckle; 45. The balance side rod; 451. The support side rod; 452. The anti-dropping protrusion; 453. The connecting rod slider; 454. The first connecting rod; 455. The second connecting rod; 456. The third connecting rod; 457. The fourth connecting rod;

[0037] 5. The lifting platform;

[0038] 6. The tripod support assembly; 61. The middle shaft rod; 62. The first locking knob; 63. The middle shaft extension rod; 64. The second locking knob; 65. The support outer rod; 66. The support inner rod; 67. The limiting hole;

[0039] 7. The lock fixing assembly; 71. The housing; 72. The lock piece; 721. The long lock; 722. The first slider; 723. The first lock spring; 724. The short lock; 725. The second slider; 726. The second lock spring; 727. The trigger; 728. The limiting protrusion; 729. The trigger spring; 73. The driving piece; 731. The push block spring; 732. The limiting column; 733. The push block; 734. The limiting protrusion; 735. The slot hole; 736. The first limiting slot; 737. The second limiting slot;

[0040] 8. The ejection spring;

[0041] 9. The ejection baffle;

[0042] 10. The block spring;

[0043] 11. The lock fixing slider;

[0044] 12. The baffle slider;

[0045] 13. The bottom plate movable hinge;

[0046] 14. The tripod movable hinge. DETAILED DESCRIPTION

[0047] The technical solutions in 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. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Meanwhile, in the embodiments of the present application, when one component is considered to be "connected" to another component, it can be directly connected to the other component or can exist with a middle component. When one component is considered to be "arranged on" another component, it can be directly arranged on the other component or can exist with a middle component. In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0048] Embodiment one

[0049] Please refer to Figures 1-3 ( Figure 1 Structure diagram of the ejector rack device in an unfolded state Figure 1 , Figure 2 Structure diagram of the ejector rack device in a folded storage state Figure 2The utility model provides a kind of folding catapult frame device for flapping wing unmanned aerial vehicle boost take-off, the catapult frame device includes: track bottom plate 1, the front of track bottom plate 1 is fixedly arranged two parallel guide rails 2, guide rail shaft 3 is arranged between two parallel guide rails 2, one end of guide rail shaft 3 is fixedly connected with the front of track bottom plate 1 one end, the other end of guide rail shaft 3 is fixedly connected with the front of track bottom plate 1 other end;Folding support fixed component 4, the upper portion of folding support fixed component 4 is provided with mounting groove, lifting platform 5, one end is provided with the mounting hole compatible with the mounting groove, the other end is hingedly connected with the back of track bottom plate 1 one end;Tripod support component 6, top is hingedly connected with the back of track bottom plate 1 other end;Lock catch fixed component 7, the bottom of lock catch fixed component 7 is slidably connected with the guide rail 2 through the guide rail shaft 3, the top of lock catch fixed component 7 is detachably connected with the fuselage of flapping wing unmanned aerial vehicle;Catapult spring 8 is coaxially sleeved on the guide rail shaft 3, and one end of catapult spring 8 is fixedly connected with one end of guide rail shaft 3, the other end of catapult spring 8 is fixedly connected with one side of lock catch fixed component 7;Catapult baffle 9 is slidably connected with the guide rail 2 through the guide rail shaft 3, and is arranged on the other side of lock catch fixed component 7;Stopper spring 10 is coaxially sleeved on the guide rail shaft 3, and one end of stopper spring 10 is fixedly connected with the other end of guide rail shaft 3, the other end of stopper spring 10 is fixedly connected with the baffle.

[0050] Specifically, the utility model provides a kind of folding catapult frame device for flapping wing unmanned plane boost take-off, including track bottom plate 1, guide rail 2, guide rail shaft 3, folding support fixed assembly 4, lifting platform 5, tripod support assembly, lock catch fixed assembly 7, catapult spring 8, catapult baffle 9 and baffle spring 10;Two parallel guide rails 2 are fixedly arranged on the front of track bottom plate 1, and guide rail shaft 3 is arranged between the two parallel guide rails 2, the bottom of lock catch fixed assembly 7 is slidably connected with guide rail 2 through guide rail shaft 3, the top of lock catch fixed assembly 7 is detachably connected with the fuselage of flapping wing unmanned plane, to guide lock catch fixed assembly 7, it is favorable to the catapult take-off of flapping wing unmanned plane;Catapult baffle 9 is slidably connected with guide rail 2 through guide rail shaft 3, and is arranged on the other side of lock catch fixed assembly 7, and catapult spring 8 and baffle spring 10 are coaxially sleeved on guide rail shaft 3, one end of catapult spring 8 is fixedly connected with one end of guide rail shaft 3, the other end is fixedly connected with one side of lock catch fixed assembly 7, one end of baffle spring 10 is fixedly connected with the other end of guide rail shaft 3, and the other end is fixedly connected with baffle, by sequentially sleeving catapult spring 8, lock catch fixed assembly 7, catapult baffle 9 and baffle spring 10 on guide rail shaft 3, lock catch fixed assembly 7 is slid on guide rail shaft 3, to provide kinetic energy for the take-off of flapping wing unmanned plane;Mounting groove is arranged on the upper portion of folding support fixed assembly 4, and mounting hole that is compatible with mounting groove is arranged on one end of lifting platform 5, so that folding support fixed assembly 4 is fixedly connected with lifting platform 5, the height of track bottom plate 1 and ground is adjusted by the fixed point of mounting groove and mounting hole, the other end of lifting platform 5 is hingedly connected with one end of the reverse side of track bottom plate 1, the top of tripod support assembly 6 is hingedly connected with the other end of the reverse side of track bottom plate 1, it is favorable to the subsequent storage folding of device;By adjusting the relative height of folding support fixed assembly 4 and tripod support assembly 6, the inclination angle of track bottom plate 1 is adjusted, so that the inclination angle of lock catch fixed assembly 7 is adjusted, so that flapping wing unmanned plane has suitable take-off inclination angle.

[0051] In some possible embodiments, referring to Figures 4-5 , the lock catch fixed assembly 7 comprises: a housing 71, the bottom of the housing 71 is slidably connected with the guide rail 2, and one side of the housing 71 is fixedly connected with the other end of the catapult spring 8;A lock catch 72 is arranged inside the housing 71;A drive member 73 drives the lock catch 72 to release the flapping wing unmanned plane.

[0052] The reason is that the locking fixing assembly 7 comprises a shell 71, a locking piece 72 and a driving piece 73, the bottom of the shell 71 is in sliding connection with the guide rail 2, one side of the shell 71 is in fixed connection with the other end of the ejection spring 8, the elastic potential energy generated by the compression elastic spring is used to push the shell 71 to move on the guide rail shaft 3 and trigger the driving piece 73 to contact the ejection baffle 9, so as to push the driving piece 73 to drive the locking piece 72 to release the flapping wing unmanned aerial vehicle, and the reaction force generated after the flapping wing unmanned aerial vehicle is ejected makes the shell 71 move on the guide rail shaft 3, and the action force is buffered through the ejection spring 8 and the stopper spring 10, so as to maintain the stability of the ejection rack device.

[0053] In some possible embodiments, referring to Figures 5-6 , the driving piece 73 comprises a push block spring 731, one end of which is in fixed connection with the shell 71, a limiting column 732 which is fixedly arranged in the interior of the shell 71, a push block 733 which is located between the inner wall of the shell 71 and the limiting column 732, one end of the push block 733 is provided with a limiting protrusion 734, and the middle part of the push block 733 is sequentially provided with a slot hole 735, a first limiting slot 736 and a second limiting slot 737; one side of the push block 733 provided with the limiting protrusion 734 is in fixed connection with the other end of the push block spring 731.

[0054] Those skilled in the art can understand that the driving piece 73 comprises the push block spring 731, the limiting column 732 and the push block 733, the push block 733 can slide in the interior of the shell 71, the sliding direction of the push block 733 is limited through the limiting column 732, one end of the push block spring 731 is in fixed connection with the shell 71, the other end is in fixed connection with one end of the push block 733, and the push block spring 731 and the push block 733 are in the same straight line; further, the limiting protrusion 734 is arranged at one end of the push block 733 to prevent the push block 733 from excessively sliding out of the shell 71, the slot hole 735, the first limiting slot 736 and the second limiting slot 737 are sequentially arranged in the middle part of the push block 733 to accommodate the locking piece 72, so as to prevent the push block 733 from excessively sliding into the shell 71; in a specific embodiment, the first limiting slot 736 and the second limiting slot 737 are triangular notch slots, the limiting column 732 is vertically fixed in the interior of the shell 71, the first limiting column 732 and the second limiting column 732 are arranged at one side of the push block 733, the other side of the push block 733 is the inner wall of the shell 71, and the third limiting column 732 is arranged on the top surface of the push block 733, so that the push block 733 slides in the shell 71 along the direction of the first limiting column 732 and the second limiting column 732, and the sliding direction of the push block 733 is kept in the same straight line with the compression direction of the push block spring 731 through the third limiting column 732.

[0055] In some possible implementation manners, the lock buckle 72 comprises: a long lock buckle 721, one end of which is arranged inside the shell 71, and the other end of which is snap-connected with the ornithopter; a first sliding block 722 and a first lock buckle spring 723 are coaxially sleeved on the long lock buckle 721, one end of the first lock buckle spring 723 is fixedly connected with the middle part of the long lock buckle 721, the other end of the first lock buckle spring 723 is fixedly connected with the first face of the first sliding block 722, the second face of the first sliding block 722 is provided with a first horizontal shaft, the first face of the first sliding block 722 is perpendicular to the second face of the first sliding block 722, and the first horizontal shaft is located in the first limiting groove 736; a short lock buckle 724, one end of which is arranged inside the shell 71, and the other end of which is snap-connected with the ornithopter; a second sliding block 725 and a second lock buckle spring 726 are coaxially sleeved on the short lock buckle 724, one end of the second lock buckle spring 726 is fixedly connected with the middle part of the short lock buckle 724, the other end of the second lock buckle spring 726 is fixedly connected with the first face of the second sliding block 725, the second face of the second sliding block 725 is provided with a second horizontal shaft, the first face of the second sliding block 725 is perpendicular to the second face of the second sliding block 725, and the second horizontal shaft is located in the second limiting groove 737; a trigger 727 in the shape of a “V”, the closed tip of the trigger 727 is rotationally connected with the shell 71, the open first end of the trigger 727 is provided with a limiting protrusion 728, and the limiting protrusion 728 is located in the slot hole 735; the open second end of the trigger 727 is provided with a trigger spring 729, one end of the trigger spring 729 is fixedly connected with the open second end of the trigger 727, and the other end of the trigger spring 729 is fixedly connected with the outer wall of the shell 71.

[0056] As can be understood by those skilled in the art, the locking piece 72 comprises a long locking piece 721, a short locking piece 724 and a trigger 727, one end of the long locking piece 721 is arranged in the inside of the shell 71, the other end is snap connected with the ornithopter, a first sliding block 722 and a first locking spring 723 are coaxially sleeved on the long locking piece 721, one end of the first locking spring 723 is fixedly connected with the middle part of the long locking piece 721, the other end is fixedly connected with the first face of the first sliding block 722, the first sliding block 722 is slidingly connected with the long locking piece 721, and a first horizontal shaft is arranged on the second face of the first sliding block 722, the first horizontal shaft can slide on the top face of the push block 733; in the same way, one end of the short locking piece 724 is arranged in the inside of the shell 71, the other end is snap connected with the ornithopter, a second sliding block 725 and a second locking spring 726 are coaxially sleeved on the short locking piece 724, one end of the second locking spring 726 is fixedly connected with the middle part of the short locking piece 724, the other end is fixedly connected with the first face of the second sliding block 725, the second sliding block 725 is slidingly connected with the short locking piece 724, and a second horizontal shaft is arranged on the second face of the second sliding block 725, the second horizontal shaft can slide on the top face of the push block 733; by driving the push block 733 to slide in the shell 71, the push block spring 731 is compressed, so that the first horizontal shaft on the long locking piece 721 slides into the first limiting groove 736, the second horizontal shaft on the short locking piece 724 slides into the second limiting groove 737, thereby the first sliding block 722 drives the first locking spring 723 to move the long locking piece 721 vertically downward, the second sliding block 725 drives the second locking spring 726 to move the short locking piece 724 vertically downward, so as to achieve the purpose of releasing the ornithopter by tripping; further, the trigger 727 is in the shape of “V”, the closed tip of the trigger 727 is rotationally connected with the shell 71, the open first end of the trigger 727 is provided with a limiting protrusion 728, when the first horizontal shaft is located in the first limiting groove 736, the limiting protrusion 728 is located in the slot hole 735, limiting the movement of the push block 733 in the shell 71, avoiding the vertical upward movement of the long locking piece 721 and the short locking piece 724; the open second end of the trigger 727 is provided with a trigger spring 729, one end of the trigger spring 729 is fixedly connected with the open second end of the trigger 727, the other end is fixedly connected with the outer wall of the shell 71, when the long locking piece 721 and the short locking piece 724 are in the tripped state, the limiting protrusion 728 is located in the slot hole 735, by pulling the open second end of the trigger 727, the limiting protrusion 728 at the open first end of the trigger 727 is away from the slot hole 735, the elastic potential energy generated by the rebound of the push block spring 731 from the compressed state drives the push block 733 to slide out of the shell 71, the first horizontal shaft is away from the first limiting groove 736, the second horizontal shaft is away from the second limiting groove 737, the long locking piece 721 and the short locking piece 724 move upward, and return to the locked state.In specific embodiments, the long lock 721, the short lock 724, the push block 733 and the trigger 727 are two, one of which is arranged on one side of the shell 71, and the other is arranged on the other side of the shell 71.

[0057] In some possible implementations, the folding support fixing assembly 4 comprises: a vertical plate 41, the vertical plate 41 comprising a vertical plate 411 and a horizontal plate 412, one end of the vertical plate 411 being fixedly connected with the horizontal plate 412 perpendicularly, the other end of the vertical plate 411 being provided with a mounting groove, the mounting groove being bolted with the mounting hole; the surface of the horizontal plate 412 being provided with a hinged protrusion 413; a support fixing plate 42 being fixedly connected with the middle part of the vertical plate 411; a support side plate 43 being hingedly connected with one end of the support fixing plate 42; a support bottom plate 44 being hingedly connected with the other end of the support side plate 43, the other end of the support bottom plate 44 being provided with a buckle 441, the buckle 441 being hingedly connected with the hinged protrusion 413; two balance side rod members 45 being distributed on both sides of the horizontal plate 412, one end of one of the balance side rod members 45 being hingedly connected with one side of the horizontal plate 412, and one end of the other balance side rod member 45 being hingedly connected with the other side of the horizontal plate 412; wherein the lower part of the vertical plate 411, the support side plate 43 and the support bottom plate 44 form a right-angled triangle.

[0058] This is because the folding support fixing assembly 4 includes a vertical plate 41, a support fixing plate 42, a support side plate 43, a support base plate 44, and two balance side rods 45. The vertical plate 41 includes a vertical plate 411 and a horizontal plate 412. One end of the vertical plate 411 is vertically fixedly connected to the horizontal plate 412. The horizontal plate 412 is in contact with the ground, and a hinge protrusion 413 is provided on the surface of the horizontal plate 412 so as to be hingedly connected to the buckle 441 on the support base plate 44. An installation groove is provided at the other end of the vertical plate 411. The installation groove is arranged in a straight line. The installation holes on the lifting platform 5 can be fixed in the installation groove by bolts to adjust the height of the track base plate 1 from the ground, and to adjust the tilt angle of the track base plate 1 in conjunction with the tripod support assembly 6. A support fixing plate 42 is fixedly provided in the middle of the vertical plate 411 to form a plate rib structure. One end of the support fixing plate 42 The support plate 42 is hinged to one end of the support side plate 43, and can be fully embedded in the support side plate 43 after rotating a certain angle, so that the support fixing plate 42 and the support side plate 43 form a plane, reducing the storage and folding space; one end of the support base plate 44 is hinged to the other end of the support side plate 43, and the other end of the support base plate 44 is provided with a buckle 441. In the unfolded state, the support base plate 44 is fixed to the horizontal plate 412 by the buckle 441 and contacts the ground, serving as the right angle side of the right triangle. The support side plate 43 is hinged to the support base plate 44 at a certain angle and is fixed to the vertical plate 411 by the support fixing plate 42, serving as the hypotenuse of the right triangle; in the folded storage state, the support fixing plate 42, the support side plate 43 and the support base plate 44 are in the same plane by adjusting the hinge angle, reducing the storage space.

[0059] In some possible implementations, each of the balance side rods 45 includes: a support side rod 451, one end of which is hinged to the cross plate 412, and the other end of which is provided with an anti-detachment protrusion 452; a connecting rod slider 453, which is sleeved on the support side rod 451; a first connecting rod 454, one end of which is hinged to one end of the support side rod 451; and a second connecting rod 455, one end of which is connected to the first connecting rod 451. The other end of the first connecting rod 454 is hinged to the connecting rod slider 453; the third connecting rod 456 has one end hinged to the connecting rod slider 453; the fourth connecting rod 457 has one end hinged to the other end of the third connecting rod 456, and the other end hinged to one end of the supporting side rod 451; wherein the supporting side rod 451, the first connecting rod 454, the second connecting rod 455, the third connecting rod 456, and the fourth connecting rod 457 are in the same plane.

[0060] In order to further improve the stability of the catapult device, balance side rod members 45 are arranged on both sides of the cross plate 412, each balance side rod member 45 comprising a support side rod 451, a connecting rod slider 453, a first connecting rod 454, a second connecting rod 455, a third connecting rod 456 and a fourth connecting rod 457, one end of the support side rod 451 being hingedly connected to the cross plate 412, the other end being provided with a anti-loosening protrusion 452, the connecting rod slider 453 being sleeved on the support side rod 451 and being fixed by a bolt, so that the rhombus formed by the first connecting rod 454, the second connecting rod 455, the third connecting rod 456 and the fourth connecting rod 457 can stably contact the ground, increasing the force bearing area and better offsetting the recoil force generated after the flapping wing UAV is catapult launched, improving the stability of the catapult device; at the same time, the hinged connection mode is used to reduce the folding storage space.

[0061] In some possible embodiments, the tripod support assembly 6 comprises: a middle shaft rod 61, one end of which is hingedly connected to the other end of the opposite side of the track bottom plate 1, the other end of the middle shaft rod 61 being provided with a first locking knob 62; a middle shaft extension rod 63, one end of which is inserted into the middle shaft rod 61 from the other end of the middle shaft rod 61 and is fixed by the first locking knob 62; the other end of the middle shaft extension rod 63 being provided with a second locking knob 64; three support outer rods 65, one end of each of the support outer rods 65 being hingedly connected to the first locking knob 62, the other end being in contact with the ground; three support inner rods 66, one end of each of the support inner rods 66 being hingedly connected to the second locking knob 64, the other end being buckled to a corresponding one of the support outer rods 65.

[0062] This is because the tripod support assembly 6 comprises the middle shaft rod 61, the middle shaft extension rod 63, the three support outer rods 65 and the three support inner rods 66, one end of the middle shaft rod 61 is hingedly connected to the other end of the opposite side of the track bottom plate 1 to adjust the inclination angle of the track bottom plate 1, the other end of the middle shaft rod 61 is provided with the first locking knob 62, one end of each of the three support outer rods 65 is hingedly connected to the first locking knob 62 and is fixed to the middle shaft rod 61 by a bolt, the other end of each of the three support outer rods 65 is in contact with the ground to form a triangle and increase the support stability; one end of the middle shaft extension rod 63 is inserted into the middle shaft rod 61 from the other end of the middle shaft rod 61 and is fixed by the first locking knob 62 and the bolt, the other end of the middle shaft extension rod 63 is provided with the second locking knob 64, one end of each of the three support inner rods 66 is hingedly connected to the second locking knob 64 and is fixed to the middle shaft extension rod 63 by a bolt, the other end of each of the three support inner rods 66 is buckled to a corresponding one of the support outer rods 65 to embed the support inner rod 66 in the corresponding support outer rod 65.

[0063] In some possible implementation manners, each of the support outer rods 65 is internally provided with a limiting hole 67, and the other end of each of the support inner rods 66 is slidably connected to the corresponding support outer rod 65 and fixedly connected to the corresponding limiting hole 67.

[0064] Further, in order to reduce the storage space, the diameter of the support inner rod 66 is smaller than that of the support outer rod 65, the support inner rod 66 can be completely embedded in the corresponding support outer rod 65 in a sliding manner, and the limiting hole 67 is arranged in the inner portion of each support outer rod 65, so that when the tripod support assembly 6 is unfolded, one end of the support inner rod 66 is fixed to the middle shaft extension rod 63 by the second locking knob 64, and the other end is slid into the corresponding limiting hole 67 in the corresponding support outer rod 65 to be fixed.

[0065] In some possible implementation manners, the ejection rack device further comprises a lock fixing sliding block 11, a top surface of the lock fixing sliding block 11 is fixedly connected to the lock fixing assembly 7, and a bottom surface of the lock fixing sliding block 11 is slidably connected to the guide rail 2; and a baffle sliding block 12, a top surface of the baffle sliding block 12 is fixedly connected to the ejection baffle 9, and a bottom surface of the baffle sliding block 12 is slidably connected to the guide rail 2.

[0066] As can be understood by those skilled in the art, the ejection rack device further comprises the lock fixing sliding block 11 and the baffle sliding block 12, the lock fixing sliding block 11 is arranged between the lock fixing assembly 7 and the guide rail 2, and the baffle sliding block 12 is arranged between the ejection baffle 9 and the guide rail 2, so that the friction loss of the lock fixing assembly 7 and the ejection baffle 9 can be reduced, the kinetic energy loss can be reduced, the initial thrust and lift for the take-off of the flapping-wing unmanned aerial vehicle can be provided, and the lock fixing sliding block 11 and the baffle sliding block 12 can be made of a material with small friction.

[0067] In some possible implementation manners, the ejection rack device further comprises a bottom plate movable hinge 13, one end of the bottom plate movable hinge 13 is fixedly connected to the opposite side of the track bottom plate 1, and the other end of the bottom plate movable hinge 13 is hingedly connected to the other end of the lifting platform 5; and a tripod movable hinge 14, one end of the tripod movable hinge 14 is fixedly connected to the other end of the opposite side of the track bottom plate 1, and the other end of the tripod movable hinge 14 is hingedly connected to the top end of the tripod support assembly 6.

[0068] This is because the ejection rack device further comprises the bottom plate movable hinge 13 and the tripod movable hinge 14, the bottom plate movable hinge 13 is fixedly arranged at one end of the opposite side of the track bottom plate 1, and the tripod movable hinge 14 is fixedly arranged at the other end of the opposite side of the track bottom plate 1, and then the lifting platform 5 and the tripod support assembly 6 are hingedly connected, respectively, so that the rotation angles of the lifting platform 5 and the tripod support assembly 6 can be controlled, and the inclination angle and the ground clearance of the track bottom plate 1 can be quickly adjusted.

[0069] The working principle of the utility model is: according to the actual condition on site, the ejection frame device is unfolded, and the inclination angle and the height from the ground of the track bottom plate 1 are adjusted, and the angle of each hinged connection is adjusted and the flapping wing unmanned aerial vehicle is installed on the lock catch fixing assembly 7;Through pushing the lock catch fixing slider 11 to compress the ejection spring 8, the elastic potential energy of the ejection spring 8 is converted into the kinetic energy of the lock catch fixing assembly 7 and the flapping wing unmanned aerial vehicle, the lock catch fixing assembly 7 slides on the guide rail 2 along the guide rail shaft 3, until the right end surface of the push block 733 of the lock catch fixing assembly 7 contacts with the ejection baffle 9, after contacting, the push block 733 moves left in the shell 71 to start compressing the push block spring 731, until the first horizontal shaft on the long lock catch 721 is located in the first limiting groove 736, the second horizontal shaft on the short lock catch 724 is located in the second limiting groove 737, the limiting protrusion 728 on the trigger 727 is located in the slot hole 735, so that the long lock catch 721 and the short lock catch 724 move downward gradually, until the right end surface of the push block 733 coincides with the right end surface of the shell 71, at this time, the lock catch piece 72 is in the "tripping state", and the flapping wing unmanned aerial vehicle is released; Figures 7-9 Through the opening second end of the trigger 727, the limiting protrusion 728 at the opening first end of the trigger 727 is separated from the slot hole 735, the push block spring 731 that is compressed pushes the push block 733 to move right by the action force generated by rebound, the first horizontal shaft is separated from the first limiting groove 736, and the second horizontal shaft is separated from the second limiting groove 737, so that the long lock catch 721 and the short lock catch 724 move upward synchronously until the first horizontal shaft contacts with the limiting protrusion 734, the push block 733 stops moving right, at this time, the lock catch piece 72 is in the "locking state", and the flapping wing unmanned aerial vehicle can be locked again. Figures 10-12

[0070] Compared with the prior art, the technical scheme provided by the utility model has the following advantages:

[0071] (1) the ejection frame device provided by the utility model can adjust the inclination angle and the height from the ground of the flapping wing unmanned aerial vehicle ejection take-off according to the size of the flapping wing unmanned aerial vehicle;

[0072] (2) the utility model can realize the stability of the flapping wing unmanned aerial vehicle before taking off through the lock catch fixing assembly, and complete the launching and releasing of the flapping wing unmanned aerial vehicle through the automatic tripping mode of ejection power assistance;

[0073] (3) the ejection frame device provided by the utility model can be folded and stored, which reduces the occupied space, is convenient to carry, and can be completely unfolded during use, increases the contact area with the ground, offsets the recoil force generated after ejection, and improves the stability of the ejection frame device.

[0074] ​Finally, it should be noted that the above-described embodiments are merely specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the present application, and the protection scope of the present application is not limited to this. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features; and these modifications, changes or replacements do not cause the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application. All should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0075] Although the embodiments of the present application have been disclosed as above, they are not limited to the applications listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A folding catapult device for flapping-wing UAV assisted take-off, characterized in that, The ejector frame device comprises: A track bottom plate, two parallel guide rails are fixedly arranged on the front surface of the track bottom plate, A guide rail shaft is arranged between the two parallel guide rails, one end of the guide rail shaft is fixedly connected with one end of the front surface of the track bottom plate, and the other end of the guide rail shaft is fixedly connected with the other end of the front surface of the track bottom plate; A folding support fixing assembly, an installation groove is arranged on the upper part of the folding support fixing assembly, A lifting platform, one end of the lifting platform is provided with an installation hole matched with the installation groove, and the other end of the lifting platform is hingedly connected with one end of the back surface of the track bottom plate; A tripod support assembly, the top of the tripod support assembly is hingedly connected with the other end of the back surface of the track bottom plate; A lock catch fixing assembly, the bottom of the lock catch fixing assembly is slidably connected with the guide rail through the guide rail shaft, and the top of the lock catch fixing assembly is detachably connected with the fuselage of the flapping wing unmanned aerial vehicle; An ejector spring is coaxially sleeved on the guide rail shaft, one end of the ejector spring is fixedly connected with one end of the guide rail shaft, and the other end of the ejector spring is fixedly connected with one side of the lock catch fixing assembly; An ejector baffle is slidably connected with the guide rail through the guide rail shaft and is arranged on the other side of the lock catch fixing assembly; A stop block spring is coaxially sleeved on the guide rail shaft, one end of the stop block spring is fixedly connected with the other end of the guide rail shaft, and the other end of the stop block spring is fixedly connected with the baffle.

2. The folding catapult frame apparatus for flapping-wing UAV assisted takeoff of claim 1, wherein, The lock catch fixing assembly comprises: A shell, the bottom of the shell is slidably connected with the guide rail, and one side of the shell is fixedly connected with the other end of the ejector spring; A lock catch is arranged in the shell; A driving piece drives the lock catch to release the flapping wing unmanned aerial vehicle.

3. The folding catapult frame apparatus for flapping-wing UAV assisted takeoff of claim 2, wherein, The driving piece comprises: A push block spring, one end of the push block spring is fixedly connected with the shell; A limiting column is fixedly arranged in the shell; A push block is located between the inner wall of the shell and the limiting column, one end of the push block is provided with a limiting protrusion, and a groove, a first limiting groove and a second limiting groove are sequentially arranged in the middle part of the push block; the push block on the side provided with the limiting protrusion is fixedly connected with the other end of the push block spring.

4. The folding catapult frame apparatus for flapping-wing UAV assisted takeoff of claim 3, wherein, The lock catch comprises: A long lock catch, one end of the long lock catch is arranged in the shell, and the other end of the long lock catch is detachably connected with the flapping wing unmanned aerial vehicle; a first sliding block and a first lock catch spring are coaxially sleeved on the long lock catch, one end of the first lock catch spring is fixedly connected with the middle part of the long lock catch, the other end of the first lock catch spring is fixedly connected with the first surface of the first sliding block, the second surface of the first sliding block is provided with a first horizontal shaft, the first surface of the first sliding block is perpendicular to the second surface of the first sliding block, and the first horizontal shaft is located in the first limiting groove. A short lock is arranged inside the shell at one end and is snap-connected with the flapping-wing UAV at the other end. A second slider and a second lock spring are coaxially sleeved on the short lock. One end of the second lock spring is fixedly connected with the middle part of the short lock, and the other end of the second lock spring is fixedly connected with the first surface of the second slider. The second surface of the second slider is provided with a second horizontal shaft. The first surface of the second slider and the second surface of the second slider are perpendicular. The second horizontal shaft is located in the second limiting groove. A trigger is in the shape of a "V". The closed tip of the trigger is rotationally connected with the shell. The open first end of the trigger is provided with a limiting protrusion, which is located in the slot hole. The open second end of the trigger is provided with a trigger spring. One end of the trigger spring is fixedly connected with the open second end of the trigger. The other end of the trigger spring is fixedly connected with the outer wall of the shell.

5. The folding catapult frame apparatus for flapping-wing UAV assisted takeoff of claim 1, wherein, The folding support fixing assembly comprises: A vertical plate comprises a vertical plate and a horizontal plate. One end of the vertical plate is fixedly connected with the horizontal plate perpendicularly. The other end of the vertical plate is provided with a mounting groove, which is bolted with the mounting hole. The surface of the horizontal plate is provided with a hinged protrusion. A support fixing plate is fixedly connected with the middle part of the vertical plate. A support side plate is hingedly connected with the support fixing plate at one end. A support bottom plate is hingedly connected with the other end of the support side plate at one end. The other end of the support bottom plate is provided with a buckle, which is hingedly connected with the hinged protrusion. Two balance side rod members are distributed on both sides of the horizontal plate. One end of one of the balance side rod members is hingedly connected with one side of the horizontal plate. One end of the other balance side rod member is hingedly connected with the other side of the horizontal plate. The lower part of the vertical plate, the support side plate and the support bottom plate form a right-angled triangle.

6. The folding catapult frame apparatus for flapping-wing UAV assisted takeoff of claim 5, wherein: Each of the balance side rod members comprises: A support side rod. One end of the support side rod is hingedly connected with the horizontal plate. The other end of the support side rod is provided with an anti-falling protrusion. A connecting rod slider is sleeved on the support side rod. A first connecting rod. One end of the first connecting rod is hingedly connected with one end of the support side rod. A second connecting rod. One end of the second connecting rod is hingedly connected with the other end of the first connecting rod. The other end of the second connecting rod is hingedly connected with the connecting rod slider. A third connecting rod. One end of the third connecting rod is hingedly connected with the connecting rod slider. A fourth connecting rod. One end of the fourth connecting rod is hingedly connected with the other end of the third connecting rod. The other end of the fourth connecting rod is hingedly connected with one end of the support side rod. The support side rod, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are in the same plane.

7. The folding catapult frame apparatus for flapping-wing UAV assisted takeoff of claim 1, wherein, The tripod support assembly comprises: A middle shaft rod is hingedly connected with the other end of the opposite surface of the track bottom plate at one end. The other end of the middle shaft rod is provided with a first locking knob. A middle shaft extension rod is inserted into the middle shaft rod from the other end of the middle shaft rod at one end and is fixed by the first locking knob. The other end of the middle shaft extension rod is provided with a second locking knob. Three support outer rods, one end of each of the support outer rods is hingedly connected with the first locking knob, the other end is in contact with the ground; Three support inner rods, one end of each of the support inner rods is hingedly connected with the second locking knob, the other end is buckledly connected with a corresponding one of the support outer rods.

8. The folding catapult frame apparatus for flapping-wing UAV assisted takeoff of claim 7, wherein: The inside of each of the support outer rods is provided with a limiting hole, the other end of each of the support inner rods is slid in a corresponding one of the support outer rods to be clamped and fixed in a corresponding limiting hole.

9. The folding catapult frame apparatus for flapping-wing UAV assisted takeoff of claim 1, wherein, The ejection rack device further comprises: A lock fixed sliding block, the top surface of the lock fixed sliding block is fixedly connected with the lock fixed assembly, the bottom surface of the lock fixed sliding block is slidably connected with the guide rail; A baffle sliding block, the top surface of the baffle sliding block is fixedly connected with the ejection baffle, the bottom surface of the baffle sliding block is slidably connected with the guide rail.

10. The folding catapult frame apparatus for flapping-wing UAV assisted takeoff of claim 1, wherein, The ejection rack device further comprises: A bottom plate movable hinge, one end of the opposite side of the track bottom plate is fixedly connected with the bottom plate movable hinge, the other end of the bottom plate movable hinge is hingedly connected with the other end of the lifting platform; A tripod movable hinge, the other end of the opposite side of the track bottom plate is fixedly connected with the tripod movable hinge, the other side of the tripod movable hinge is hingedly connected with the top end of the tripod support assembly.

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