Parachute bay opening and closing device for unmanned aerial vehicle and unmanned aerial vehicle

Abstract

The utility model relates to a parachute bay switching device for an unmanned aerial vehicle and the unmanned aerial vehicle. The parachute bay switching device comprises a locking connecting base and a hook mechanism connected with the locking connecting base in a switching mode. The hook mechanism comprises an installation base, a hook, a push rod assembly, a steering engine and an elastic piece. The hook comprises a hook part, a rotating part and a shifting part which are connected in sequence; the rotating part is rotationally connected with the mounting seat; the two opposite ends of the elastic piece are connected with the shifting part and the mounting seat respectively, and the elastic piece is used for providing hanging pre-tightening force for the hook part and the locking connecting seat; the push rod assembly is slidably connected to the mounting seat, one end of the push rod assembly is connected with the steering engine, and the other end of the push rod assembly is arranged opposite to the shifting part; the steering engine is used for driving the push rod assembly to overcome the hanging pre-tightening force so as to drive the hook part to be separated from the locking connecting base.

Description

Technical Field

[0001] The utility model relates to the field of unmanned aerial vehicles, in particular to a parachute cabin switch device for an unmanned aerial vehicle and an unmanned aerial vehicle. Background Technique

[0002] With the progress of aviation technology, the unmanned aerial vehicle market has gradually become popular. At present, unmanned aerial vehicles are widely used in various fields, and the demand and scale for unmanned aerial vehicles in the civilian unmanned aerial vehicle market are also increasing day by day. In the overall design of unmanned aerial vehicles, due to the need to meet the characteristics of light weight, etc., most unmanned aerial vehicle bodies use carbon fiber composite materials, resulting in high costs. Therefore, the recoverable technology of unmanned aerial vehicles is one of the key technologies to reduce the cost of unmanned aerial vehicles and also the key development direction for the future of unmanned aerial vehicles. At present, many models of unmanned aerial vehicles are equipped with emergency parachutes, so the high reliability and high usability of the parachute cabin system and the recovery system are becoming more and more popular.

[0003] At present, explosive bolts are usually arranged at the connection between the parachute cabin cover and the ring frame on unmanned aerial vehicles. Under normal working conditions, when the unmanned aerial vehicle issues an explosion command, the explosive bolts explode, disconnecting the connection between the parachute cabin cover and the fuselage, and the main parachute is normally opened under the action of aerodynamic force.

[0004] Explosive bolts have the advantages of large load-bearing capacity, simple structure, and reliable operation, etc. However, multiple explosive bolts are often required on unmanned aerial vehicles, and it is necessary to arrange leads for them separately, and it is difficult to ensure that all explosive bolts are disconnected simultaneously. In addition, when the explosive bolts are disconnected, the debris should not damage the surrounding structures and equipment, and the overall difficulty is relatively high, with unstable factors. In particular, the explosive bolts will generate huge impact forces during operation, and there are many uncontrollable factors in actual applications, which may cause the parachute pack to fail to open normally or damage the parachute pack, causing irreversible damage to the recovery of the unmanned aerial vehicle, or even directly leading to the failure of the unmanned aerial vehicle recovery.

[0005] In view of the disadvantages of explosive bolts, some servo-driven parachute opening schemes have also emerged at present. The current servo parachute opening structure is usually designed as a three-link mechanism, and the main parachute hook is driven to rotate and open and close through flight control instructions to realize the main parachute opening function. However, many existing structures have no limiting conditions for the rotational displacement of the main parachute hook. Another point is that it does not consider how to disassemble and repair the parachute cabin when the servo is not powered on. The existing unmanned aerial vehicle servo parachute opening mechanism is installed inside the parachute cabin, and the mounting seat and the ring frame are fixedly connected by bolts. The ring frames at both ends of the parachute cabin are of a closed structure. After the parachute cabin cover is closed, the parachute cabin cover can only be opened when powered on, which has great limitations and greatly increases the difficulty of daily parachute cabin inspection and disassembly and repair. Content of the Utility Model

[0006] The purpose of the utility model is to provide a parachute cabin switch device for a UAV and the UAV, so as to overcome the unsafe and unstable problems brought by traditional explosive bolts.

[0007] In order to achieve the above-mentioned utility model object, the utility model provides a parachute cabin switch device for a drone, comprising: a locking connection seat, a hook mechanism connected to the locking connection seat switch;

[0008] The hook mechanism comprises: a mounting seat, a hook, a push rod assembly, a steering gear and an elastic member;

[0009] The hook comprises: a hook part, a rotating part and a toggle part connected in sequence;

[0010] The rotating part is rotatably connected to the mounting seat;

[0011] The opposite ends of the elastic member are respectively connected to the toggle portion and the mounting seat, and are used to provide a hanging pre-tightening force between the hook portion and the locking connection seat;

[0012] The push rod assembly is slidably connected to the mounting seat, one end of which is connected to the steering gear, and the other end is arranged opposite to the toggle portion;

[0013] The steering gear is used to drive the push rod assembly to overcome the hanging pre-tightening force, so as to drive the hook part to be disengaged from the locking connection seat.

[0014] According to one aspect of the utility model, the steering gear comprises: a steering gear body and a turntable connected to a rotating shaft of the steering gear body;

[0015] The turntable is coaxial with the rotating shaft of the steering gear body;

[0016] At least one push rod connection structure is arranged on the rotating disk along the circumference of the rotating disk;

[0017] Along the radial direction of the rotating disk, the push rod connecting structure is arranged adjacent to the edge of the rotating disk.

[0018] According to one aspect of the utility model, the push rod assembly includes: a connecting rocker rod and a slide rod;

[0019] The connection between the connecting swing rod and the sliding rod is rotatable;

[0020] One end of the connecting rocker arm away from the sliding rod is rotatably connected to the push rod connecting structure;

[0021] An abutment structure is arranged at one end of the slide bar away from the connecting rocker bar.

[0022] According to one aspect of the utility model, the abutting structure is a disc structure, and the abutting structure is coaxially arranged with the sliding rod.

[0023] According to one aspect of the utility model, the mounting seat comprises: a mounting seat body, a first connecting structure and a second connecting structure arranged on one side of the mounting seat body;

[0024] The first connection structure is a boss structure, which is used to connect with the rotating part;

[0025] The second connection structure is a boss structure, which is used to connect with the elastic member and the sliding rod;

[0026] The second connecting structure is provided with a sliding channel for the sliding rod to slide and an end fixing hole for fixing with the end of the elastic member;

[0027] The end fixing hole is above the sliding channel.

[0028] According to one aspect of the utility model, the hook is a plate-shaped body;

[0029] The hook part includes: a long strip connecting structure and a hanging structure;

[0030] One end of the long connecting structure is connected to the rotating part, and the hanging structure is arranged at the other end of the rotating part;

[0031] The hanging structure is arranged at an angle with the long strip connecting structure, and one end of the hanging structure is fixedly connected to the end of the long strip connecting structure, and the other end is a free extension end away from the long strip connecting structure;

[0032] The free extension end of the hanging structure is provided with an oblique surface, and in the direction from the long strip connecting structure to the rotating part, the oblique surface is arranged obliquely in a direction away from the long strip connecting structure;

[0033] The toggle portion is a long strip structure, and the toggle portion and the long strip connecting structure are staggered and parallel to each other; wherein, along the length direction of the hook, the toggle portion is opposite to the hanging structure, and the free extension end of the hanging structure is farthest from the long strip connecting structure and is flush with a side of the toggle portion away from the sliding rod.

[0034] According to one aspect of the utility model, a semi-cylindrical structure is provided on a side of the toggle portion opposite to the slide rod, and the axial direction of the semi-cylindrical structure is consistent with the thickness direction of the toggle portion;

[0035] The arc surface of the semi-cylindrical structure is arranged to contact the abutting structure;

[0036] A limiting shaft for manually moving the hook and limiting the rotation range of the hook is arranged at one end of the moving part away from the rotating part.

[0037] According to one aspect of the utility model, the locking connection seat comprises: a connection seat body;

[0038] The connecting seat body is provided with a connecting through hole penetrating the body thereof;

[0039] The hanging structure can be movably extended into the connecting through hole to achieve hanging and locking of the hook and the locking connecting seat;

[0040] A guiding inclined surface is arranged on one side of the end of the connecting seat body adjacent to the hanging structure, and the inclination angle of the guiding inclined surface matches the inclination angle of the chamfered surface.

[0041] According to one aspect of the utility model, it also includes: a spring ejector mechanism;

[0042] The spring ejector pin mechanisms are provided in plurality, and the plurality of spring ejector pin mechanisms are symmetrically distributed on opposite sides of the locking connection seat;

[0043] The spring ejector mechanism and the hook mechanism are connected to the same bearing structure.

[0044] In order to achieve the above-mentioned utility model object, the utility model provides a drone using the above-mentioned parachute cabin switch device, comprising: a drone body and a parachute cabin switch device;

[0045] The drone body has a parachute compartment for installing a parachute, and a parachute compartment cover is provided on the opening side of the parachute compartment;

[0046] The parachute cabin comprises: a front ring frame, a rear ring frame opposite to the front ring frame, and a skin arranged on the circumferential outer sides of the front ring frame and the rear ring frame;

[0047] The parachute cabin switch device comprises: a locking connection seat, a hook mechanism connected to the locking connection seat switch;

[0048] The locking connection seat is installed on the parachute canopy, and the hook mechanism is installed on the side of the front ring frame;

[0049] The hook mechanism comprises: a mounting seat, a hook, a push rod assembly, a steering gear and an elastic member;

[0050] The hook comprises: a hook part, a rotating part and a toggle part connected in sequence;

[0051] The rotating part is rotatably connected to the mounting seat;

[0052] The opposite ends of the elastic member are respectively connected to the toggle portion and the mounting seat, and are used to provide a hanging pre-tightening force between the hook portion and the locking connection seat;

[0053] The push rod assembly is slidably connected to the mounting seat, one end of which is connected to the steering gear, and the other end is arranged opposite to the toggle portion;

[0054] The steering gear is used to drive the push rod assembly to overcome the hanging pre-tightening force, so as to drive the hook part to be disengaged from the locking connection seat.

[0055] According to a solution of the utility model, the utility model can flexibly select the specification parameters of the steering gear according to the actual installation and preload requirements, and can flexibly control the steering gear through the motion trajectory of the push rod assembly and the rotation angle of the disc.

[0056] According to a solution of the utility model, the utility model has a simple structure and reliable operation. By adopting a stable mechanical transmission and providing a disc and a push rod assembly on the transmission path, the effective transmission of the steering gear driving torque can be effectively guaranteed.

[0057] According to a solution of the utility model, the locking connection seat and the hook are correspondingly provided with inclined surfaces that can be abutted, and then, when the umbrella cover is closed, self-locking can be achieved through the relative sliding of the locking connection seat and the hook, which effectively ensures the convenience of locking.

[0058] According to a solution of the utility model, by arranging a supporting structure on the push rod assembly, the contact surface with the hook can be effectively increased, ensuring that during the movement of the hook mechanism, the hook and the supporting structure always have a certain effective contact surface, which is convenient for transmitting torque and driving the rotational movement of the main umbrella hook.

[0059] According to a solution of the utility model, the utility model effectively ensures the movement flexibility of the end of the push rod assembly by sliding the push rod assembly against the hook, which is beneficial to ensuring the reliability of the entire mechanism and effectively avoids the disadvantage that the traditional hinge method easily causes the push rod assembly to be stuck.

[0060] According to a solution of the utility model, by setting a limit shaft on the hook, on the one hand, the rotation range of the hook can be limited, and on the other hand, the limit shaft can be manually turned to achieve the disengagement of the hook and the locking connecting seat, so that the limit shaft can be manually opened and closed under no-power conditions, which not only ensures the smooth opening of the main parachute, but also facilitates the daily inspection and disassembly and maintenance of the drone.

[0061] According to a solution of the utility model, the hook can be flexibly arranged in proportions of different parts by means of segmented arrangement, thereby adapting to the output torque of the servo engine, thereby effectively ensuring the reliability of the utility model.

[0062] According to one solution of the present utility model, the parachute bay switch device of the present utility model can fully replace the traditional method of opening the parachute with an explosive bolt. It can not only operate safely and stably, but also ensure the normal opening of the parachute without damage.

[0063] According to one solution of the present utility model, the mechanical transmission method is adopted, which has high stability, is safe and reliable, and each structure is simple and low in cost, which is conducive to wide use. Brief Description of the Drawings

[0064] Figure 1 It is a schematic structural diagram of the parachute bay switch device according to an embodiment of the present utility model;

[0065] Figure 2 It is a schematic connection diagram of the limit shaft and the front ring frame according to an embodiment of the present utility model;

[0066] Figure 3 It is a schematic structural connection diagram of the parachute bay cover and the front ring frame according to an embodiment of the present utility model. Detailed Embodiments

[0067] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0068] When describing the embodiments of the present utility model, the orientation or positional relationships expressed by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" are based on the orientation or positional relationships shown in the relevant drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present utility model.

[0069] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments. The embodiments cannot be described in detail one by one here, but the embodiments of the present utility model are not limited to the following embodiments.

[0070] As Figure 1As shown, according to an embodiment of the utility model, a parachute switch device for a drone of the utility model comprises: a locking connection seat 1, a hook mechanism 2 connected to the locking connection seat 1; in this embodiment, the hook mechanism 2 comprises: a mounting seat 21, a hook 22, a push rod assembly 23, a steering gear 24 and an elastic member 25; wherein the hook 22 comprises: a hook portion 221, a rotating portion 222 and a toggle portion 223 connected in sequence. In this embodiment, the rotating portion 222 is rotatably connected to the mounting seat 21; the opposite ends of the elastic member 25 are respectively connected to the toggle portion 223 and the mounting seat 21, and are used to provide a hooking preload force between the hook portion 221 and the locking connection seat 1; the push rod assembly 23 is slidably connected to the mounting seat 21, one end of which is connected to the steering gear 24, and the other end is arranged opposite to the toggle portion 223. In this embodiment, the steering gear 24 is used to drive the push rod assembly 23 to overcome the hooking preload force to drive the hook portion 221 to disengage from the locking connection seat 1.

[0071] In this embodiment, the elastic member 25 can be a tension spring, the preload force of which is set to 3kg, and the spring travel is designed to be 12mm. In this embodiment, when the hook 22 is connected to the locking connector 1, the elastic member 25 is in a stretched state, and the preload force applied is 2kg. In another embodiment, the elastic member 25 can be set as a torsion spring to reduce its space occupation, which is conducive to installation in a small space and improves the convenience of installation.

[0072] In this embodiment, the output torque of the steering gear 24 can be set to 150 kg / cm.

[0073] like Figure 1 As shown, according to an embodiment of the utility model, the steering gear 24 includes: a steering gear body 241 and a turntable 242 connected to the rotating shaft of the steering gear body 241; wherein the turntable 242 is coaxially arranged with the rotating shaft of the steering gear body 241; in this embodiment, along the circumference of the turntable 242, at least one push rod connection structure 242a is arranged on the turntable 242; along the radial direction of the turntable 242, the push rod connection structure 242a is arranged adjacent to the edge of the turntable 242.

[0074] In this embodiment, the turntable 242 is integrally in the shape of a metal plate, and its outer shape can be processed into a regular circular plate shape. Among them, an installation hole coaxially sleeved with the rotating shaft of the steering gear 24 is provided at its central position, thereby realizing the installation with the steering gear 24. In addition, the push rod connection structure 242a can be set as a through-hole structure. Among them, the push rod connection structure 242a can be set to one, or can be set to multiple at equal angular intervals. Thus, by adopting the method of connecting the rotating shaft with the push rod connection structure 242a and the push rod assembly 23 respectively, the rotational installation of the push rod assembly 23 is realized. In this embodiment, the rotation of the turntable 242 can be converted into the reciprocating movement of the push rod assembly 23, and then the corresponding pushing effect can be realized through the push rod assembly 23.

[0075] Through the above settings, by adopting the method of setting the push rod connection structure 242a on the turntable 242, the connection with the push rod assembly 23 can be conveniently realized. Of course, by setting the turntable 242, the flexible installation with the push rod assembly 23 can be realized, and the stroke of the push rod assembly 23 can be conveniently controlled by flexibly adjusting the position of the turntable 242, further effectively improving the use flexibility of the present utility model.

[0076] As Figure 1 shown, according to an embodiment of the present utility model, the push rod assembly 23 includes: a connecting swing rod 231 and a sliding rod 232; among them, the connecting swing rod 231 and the sliding rod 232 are rotationally connected at the end. In this embodiment, one end of the connecting swing rod 231 far from the sliding rod 232 is rotationally connected to the push rod connection structure 242a; an abutting structure 232a is provided at one end of the sliding rod 232 far from the connecting swing rod 231.

[0077] As Figure 1 shown, according to an embodiment of the present utility model, the abutting structure 232a is a disc structure, and the abutting structure 232a is coaxially arranged with the sliding rod 232. In this embodiment, the radial dimension of the abutting structure 232a is larger than the end dimension of the sliding rod 232, so that the contact position with the hook 22 is effectively increased, thereby effectively improving the stability and reliability of the contact position.

[0078] As Figure 1As shown, according to an embodiment of the utility model, the mounting seat 21 includes: a mounting seat body 211, a first connection structure 212 and a second connection structure 213 arranged on one side of the mounting seat body 211. In this embodiment, the first connection structure 212 is a boss structure, which is used to connect with the rotating part 222; wherein, the first connection structure 212 can be set as a square boss, on which a mounting hole can be set, and then the rotation connection with the rotating part 222 is realized by embedding the rotating shaft. In this embodiment, the rotating part 222 is also provided with a through hole connected to the rotating shaft, thereby, the rotating part 222 is installed on the rotating shaft, and the rotating part 222 can be stably restricted on the rotating shaft by providing structures such as a retaining ring and a cotter pin at the end of the rotating shaft, so as to ensure the stable operation of the hook 22.

[0079] In this embodiment, the second connection structure 213 is a boss structure, which is used to connect with the elastic member 25 and the slide bar 232; wherein, the second connection structure 213 can be set as a rectangular boss, and a sliding channel 213a for the slide bar 232 to slide and an end fixing hole for fixing with the end of the elastic member 25 are provided on the rectangular boss; wherein, the opening direction of the sliding channel 213a is opposite to the toggle portion 223, thereby limiting the movement direction of the slide bar 232, so that the slide bar 232 can stably realize the driving effect on the hook 22 under the driving action. The second connection structure 213 provided can conveniently convert the axial swing of the connecting rocker 231 into the linear motion of the slide bar 232, thereby realizing the determination of the stroke, thereby, the rotation angle of the turntable 242 is also determined, and then the initial rotation position can be calculated and determined by the tangential speed, so that the mechanism movement is designed as a fast opening and slow closing structure.

[0080] In this embodiment, the end fixing hole is arranged above the sliding channel 213 a , so that the elastic member 25 can be arranged parallel to the sliding rod 232 .

[0081] like Figure 1 As shown, according to an embodiment of the utility model, the hook 22 is a plate-shaped body; wherein the hook portion 221 includes: a long connecting structure 221a and a hanging structure 221b; in this embodiment, one end of the long connecting structure 221a is connected to the rotating portion 222, and the hanging structure 221b is arranged at the other end of the rotating portion 222; wherein the hanging structure 221b and the long connecting structure 221a have an angled arrangement, and one end thereof is fixedly connected to the end of the long connecting structure 221a, and the other end is a free extension end away from the long connecting structure 221a. In this embodiment, the hanging structure 221b is arranged perpendicular to the long connecting structure 221a.

[0082] In this embodiment, the free extension end of the hanging structure 221b is provided with a chamfered surface 221b1, and the chamfered surface 221b1 is arranged in an inclined direction away from the long connecting structure 221a from the direction of the rotating portion 222. In this embodiment, the inclination angle of the chamfered surface 221b1 can be set to 45°, 60°, etc.

[0083] In this embodiment, the toggle portion 223 is a long strip structure, and the toggle portion 223 and the long strip connecting structure 221a are staggered and parallel to each other; wherein, along the length direction of the hook 22, the toggle portion 223 is opposite to the hanging structure 221b, and the free extension end of the hanging structure 221b is farthest from the long strip connecting structure 221a and is flush with the side of the toggle portion 223 away from the sliding rod 232.

[0084] By means of the above arrangement, the space between the toggle portion 223 and the second connection structure 213 can be effectively increased by staggering the toggle portion 223 and the long connection structure 221a in parallel, thereby arranging the connecting rocker 231 and the slide bar 232 more conveniently.

[0085] In addition, by arranging the free extension end of the hanging structure 221b, which is farthest from the long connecting structure 221a, to be flush with the side of the toggle portion 223 away from the slide rod 232, when the hook 22 rotates, the rotation angle of the side of the toggle portion 223 can be consistent with the rotation angle of the end of the hanging structure 221b. As a result, the position where the slide rod 232 pushes the toggle portion 223 to move can be accurately transmitted to the end of the hanging structure 221b, thereby enabling the servo 24 to accurately control the hook 22.

[0086] like Figure 1 As shown, according to an embodiment of the utility model, a semi-cylindrical structure 223a is provided on the side of the toggle portion 223 opposite to the slide bar 232, and the axial direction of the semi-cylindrical structure 223a is consistent with the thickness direction of the toggle portion 223. In this embodiment, the arc surface of the semi-cylindrical structure 223a is in contact with the abutting structure 232a. Through the above arrangement, a line contact is presented between the semi-cylindrical structure 223a and the abutting structure 232a, which can reduce friction. In addition, the small area of the semi-cylindrical structure 223a and the large area of the abutting structure 232a can effectively ensure that during the movement, the hook 22 and the slide bar 232 always have an effective contact surface, thereby ensuring the normal operation of the mechanism.

[0087] Through the above configuration, the semi-cylindrical structure 223a is provided on the side of the toggle portion 223, which can effectively reduce the contact area between the toggle portion 223 and the abutting structure 232a, thereby effectively reducing the friction resistance at the contact position, which is beneficial to ensuring the stable operation of the entire device.

[0088] In this embodiment, the end of the toggle portion 223 away from the rotating portion 222 is provided with a limit shaft 2231 for manually toggling the hook 22 and limiting the rotation range of the hook 22; wherein the limit shaft 2231 is arranged perpendicular to the toggle portion 223, and further, see Figure 2 By arranging a limit waist hole at the position where the hook 22 is installed, the limit shaft 2231 can slide in the limit waist hole to limit the rotation angle of the hook 22. In addition, through the provided limit shaft 2231, the limit shaft 2231 can be manually toggled to rotate the hook 22, so that the hook 22 can be easily disengaged from the locking connector 1 under manual control, so that the steering gear 24 can smoothly open the umbrella cover even when the power is off, further effectively improving the use flexibility of the utility model.

[0089] like Figure 1 As shown, according to an embodiment of the utility model, the locking connection seat 1 includes: a connection seat body 11. In this embodiment, the connection seat body 11 is provided with a connection through hole penetrating the body thereof; wherein the hanging structure 221b can be movably extended into the connection through hole to achieve the hanging and locking of the hook 22 and the locking connection seat 1. In this embodiment, a guide inclined surface 11a is provided on one side of the end of the connection seat body 11 adjacent to the hanging structure 221b, and the inclination angle of the guide inclined surface 11a matches the inclination angle of the chamfered surface 221b1.

[0090] like Figure 1 As shown, according to an embodiment of the utility model, the parachute cabin switch device of the utility model further includes: a spring ejector mechanism 3; wherein, a plurality of (for example, two) spring ejector mechanisms 3 are provided, and the plurality of spring ejector mechanisms 3 are symmetrically distributed on opposite sides of the locking connection seat 1. In this embodiment, the spring ejector mechanism 3 and the hook mechanism 2 are connected to the same bearing structure; wherein, the top of the spring ejector mechanism 3 can be set to a hemispherical shape. In this embodiment, the thrust of the spring ejector mechanism 3 can be set to 1kg to 2kg.

[0091] Combination Figure 1 , Figure 2 and Figure 3As shown, according to an embodiment of the present invention, the present invention provides a drone using the aforementioned parachute compartment switch device, comprising: a drone body a and a parachute compartment switch device b. In this embodiment, the drone body a has a parachute compartment a1 for installing a parachute, and a parachute compartment cover a2 is arranged on the opening side of the parachute compartment a1; wherein the parachute compartment a1 comprises: a front ring frame a11, a rear ring frame opposite to the front ring frame a11, and a skin arranged on the circumferential outer side of the front ring frame a11 and the rear ring frame; in this embodiment, a lapped plug ear is arranged at the rear end of the parachute compartment cover a2, and an inclined boss is arranged on the rear ring frame, and the inclined boss is arranged to achieve connection with the lapped plug ear.

[0092] In this embodiment, the parachute switch device b includes: a locking connection seat 1, and a hook mechanism 2 connected to the locking connection seat 1; wherein the locking connection seat 1 is installed on the parachute cover a2, and the hook mechanism 2 is installed on the side of the front ring frame a11; in this embodiment, the locking connection seat 1 is fixed to the front end of the parachute cover a2 by a threaded connector to achieve connection with the hook mechanism 2 on the front ring frame a11. In this embodiment, the hook mechanism 2 includes: a mounting seat 21, a hook 22, a push rod assembly 23, a steering gear 24 and an elastic member 25; wherein the hook 22 includes: a hook portion 221, a rotating portion 222 and a toggle portion 223 connected in sequence. In this embodiment, the rotating part 222 is rotatably connected to the mounting seat 21; the opposite ends of the elastic member 25 are respectively connected to the toggle part 223 and the mounting seat 21, and are used to provide a hanging pre-tightening force between the hook part 221 and the locking connection seat 1; the push rod assembly 23 is slidably connected to the mounting seat 21, one end of which is connected to the steering gear 24, and the other end is arranged opposite to the toggle part 223. In this embodiment, the steering gear 24 is used to drive the push rod assembly 23 to overcome the hanging pre-tightening force, so as to drive the hook part 221 to be separated from the locking connection seat 1.

[0093] In this embodiment, a limiting waist hole is arranged on the side of the front ring frame a11 and at a position corresponding to the installation hook 22, so that the limiting shaft 2231 set for the toggle part 223 can be limited in the limiting waist hole, so that the rotation angle range of the toggle part 223 is determined. In addition, through the provided limiting shaft 2231, the rotation of the hook 22 can be toggled by manually toggling the limiting shaft 2231, so that the manual control of the lower hook 22 and the locking connection seat 1 can be conveniently realized, so that the steering gear 24 can smoothly open the umbrella cabin cover even under the condition of no power supply, further effectively improving the use flexibility of the utility model.

[0094] The above contents are merely examples of specific solutions of the present invention. For the equipment and structures not described in detail, it should be understood that they are implemented by adopting the general equipment and general methods available in the art.

[0095] The above is only one solution of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An umbrella compartment switch device for a drone, characterized in that, include: A locking connection seat (1), and a hook mechanism (2) switchably connected to the locking connection seat (1); The hook mechanism (2) comprises: a mounting seat (21), a hook (22), a push rod assembly (23), a steering gear (24) and an elastic member (25); The hook (22) comprises: a hook portion (221), a rotating portion (222) and a toggle portion (223) which are connected in sequence; The rotating portion (222) is rotatably connected to the mounting seat (21); The opposite ends of the elastic member (25) are respectively connected to the toggle portion (223) and the mounting seat (21), and are used to provide a hanging pre-tightening force between the hook portion (221) and the locking connection seat (1); The push rod assembly (23) is slidably connected to the mounting seat (21), one end of which is connected to the steering gear (24), and the other end is arranged opposite to the toggle portion (223); The steering engine (24) is used to drive the push rod assembly (23) to overcome the hooking pre-tightening force, so as to drive the hook portion (221) to disengage from the locking connection seat (1).

2. The umbrella compartment switch device according to claim 1, characterized in that The steering gear (24) comprises: a steering gear body (241) and a rotating disk (242) connected to a rotating shaft of the steering gear body (241); The rotating disk (242) is coaxially arranged with the rotating shaft of the steering engine body (241); At least one push rod connection structure (242a) is provided on the rotating disk (242) along the circumference of the rotating disk (242); Along the radial direction of the rotating disk (242), the push rod connection structure (242a) is arranged adjacent to the edge of the rotating disk (242).

3. The umbrella compartment switch device according to claim 2, characterized in that, The push rod assembly (23) comprises: a connecting rocker rod (231) and a sliding rod (232); The connecting rocker rod (231) and the sliding rod (232) are rotatably connected; One end of the connecting rocker rod (231) away from the sliding rod (232) is rotatably connected to the push rod connecting structure (242a); An abutment structure (232a) is provided at one end of the sliding rod (232) away from the connecting rocker rod (231).

4. The umbrella compartment switch device according to claim 3, characterized in that, The abutting structure (232a) is a disc structure, and the abutting structure (232a) is coaxially arranged with the sliding rod (232).

5. The umbrella compartment switch device according to claim 4, characterized in that, The mounting seat (21) comprises: a mounting seat body (211), a first connection structure (212) and a second connection structure (213) arranged on one side of the mounting seat body (211); The first connection structure (212) is a boss structure, which is used to be connected to the rotating part (222); The second connection structure (213) is a boss structure, which is used to connect with the elastic member (25) and the sliding rod (232); The second connection structure (213) is provided with a sliding channel (213a) for the sliding rod (232) to slide and an end fixing hole for fixing with the end of the elastic member (25); The end fixing hole is located above the sliding channel (213a).

6. The umbrella compartment switch device according to claim 5, wherein, The hook (22) is a plate-shaped body; The hook portion (221) comprises: a long strip connecting structure (221a) and a hanging structure (221b); One end of the long strip connection structure (221a) is connected to the rotating part (222), and the hanging structure (221b) is arranged at the other end of the rotating part (222); The hanging structure (221b) and the long strip connecting structure (221a) are arranged at an angle, and one end thereof is fixedly connected to the end of the long strip connecting structure (221a), and the other end is a free extension end away from the long strip connecting structure (221a); The free extending end of the hanging structure (221b) is provided with an oblique surface (221b1), and in the direction from the long strip connecting structure (221a) to the rotating part (222), the oblique surface (221b1) is arranged obliquely in a direction away from the long strip connecting structure (221a); The toggle portion (223) is a long strip structure, and the toggle portion (223) and the long strip connecting structure (221a) are arranged in a staggered manner and are parallel to each other; wherein, along the length direction of the hook (22), the toggle portion (223) and the hanging structure (221b) are opposite to each other, and the free extension end of the hanging structure (221b) is arranged at a position farthest from the long strip connecting structure (221a) and is flush with a side of the toggle portion (223) away from the sliding rod (232).

7. The umbrella compartment switch device according to claim 6, characterized in that, A semi-cylindrical structure (223a) is provided on the side of the toggle portion (223) opposite to the slide rod (232), and the axial direction of the semi-cylindrical structure (223a) is consistent with the thickness direction of the toggle portion (223); The arc surface of the semi-cylindrical structure (223a) is arranged to be in contact with the abutting structure (232a); One end of the toggle portion (223) away from the rotating portion (222) is provided with a limiting shaft (2231) for manually toggling the hook (22) and limiting the rotation range of the hook (22).

8. The umbrella compartment switch device according to claim 7, characterized in that, The locking connection seat (1) comprises: a connection seat body (11); The connecting seat body (11) is provided with a connecting through hole penetrating the body; The hanging structure (221b) can movably extend into the connecting through hole to achieve hanging and locking of the hook (22) and the locking connection seat (1); A guiding inclined surface (11a) is provided on one side of the end of the connecting seat body (11) adjacent to the hanging structure (221b), and the inclination angle of the guiding inclined surface (11a) matches the inclination angle of the chamfered surface (221b1).

9. The umbrella compartment switch device according to claim 8, characterized in that, Also includes: Spring ejector mechanism (3); A plurality of the spring ejector pin mechanisms (3) are provided, and the plurality of the spring ejector pin mechanisms (3) are symmetrically distributed on two opposite sides of the locking connection seat (1); The spring ejector mechanism (3) and the hook mechanism (2) are connected to the same bearing structure.

10. A drone using the umbrella cabin switch device according to any one of claims 1 to 9, characterized in that, include: UAV body (a) and parachute compartment switch device (b); The drone body (a) has a parachute compartment (a1) for installing a parachute, and a parachute compartment cover (a2) is provided on the opening side of the parachute compartment (a1); The parachute cabin (a1) comprises: a front ring frame (a11), a rear ring frame opposite to the front ring frame (a11), and a skin arranged on the circumferential outer sides of the front ring frame (a11) and the rear ring frame; The parachute cabin switch device (b) comprises: a locking connection seat (1), and a hook mechanism (2) connected to the locking connection seat (1) for switching; The locking connection seat (1) is installed on the umbrella canopy (a2), and the hook mechanism (2) is installed on the side of the front ring frame (a11); The hook mechanism (2) comprises: a mounting seat (21), a hook (22), a push rod assembly (23), a steering gear (24) and an elastic member (25); The hook (22) comprises: a hook portion (221), a rotating portion (222) and a toggle portion (223) which are connected in sequence; The rotating portion (222) is rotatably connected to the mounting seat (21); The opposite ends of the elastic member (25) are respectively connected to the toggle portion (223) and the mounting seat (21), and are used to provide a hanging pre-tightening force between the hook portion (221) and the locking connection seat (1); The push rod assembly (23) is slidably connected to the mounting seat (21), one end of which is connected to the steering gear (24), and the other end is arranged opposite to the toggle portion (223); The steering engine (24) is used to drive the push rod assembly (23) to overcome the hooking pre-tightening force, so as to drive the hook portion (221) to disengage from the locking connection seat (1).

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