A detachable connection device and aircraft

Abstract

The application discloses a detachable connecting device and an aircraft, and aims to improve the disassembly and assembly efficiency. The detachable connecting device is used for detachably connecting a first component and a second component, and comprises a locking mechanism and a linkage mechanism which are interlocked; the locking mechanism is used for cooperating with a locking groove arranged on the first component, the linkage mechanism is used for being fixedly connected with the second component, and the locking mechanism can be locked or separated from the locking groove under the drive of the linkage mechanism. In use, the detachable connecting device is preassembled on the second component. When the first component and the second component are assembled, the linkage mechanism is only needed to be operated, so that the locking mechanism is driven to be locked with the locking groove, the detachable connection between the first component and the second component is realized; when the first component and the second component are disassembled, the linkage mechanism is only needed to be operated, so that the locking mechanism is separated from the locking groove, and the separation between the first component and the second component is realized. The device omits the cumbersome steps of disassembling and assembling multiple fasteners one by one, significantly shortens the disassembly and assembly time, and effectively improves the disassembly and assembly efficiency.

Description

Technical Field

[0001] This invention belongs to the field of aircraft technology, specifically relating to a detachable connection device and an aircraft. Background Technology

[0002] Components on aircraft that require inspection, maintenance, replacement, or disassembly generally employ detachable connections. Existing detachable connection devices often use multiple independent fasteners. When it is necessary to disassemble or assemble the first component and the second component, these fasteners must be tightened or loosened one by one. The operation is cumbersome, time-consuming, and inefficient, making it difficult to meet the aircraft's need for rapid disassembly and assembly. Summary of the Invention

[0003] This invention provides a detachable connection device and an aircraft to overcome the problems of cumbersome and inefficient disassembly and assembly steps between existing detachable connection components, and features quick disassembly and assembly and convenient operation.

[0004] The technical solution of this application is as follows:

[0005] This application provides a detachable connection device for detachably connecting a first component and a second component, including a locking mechanism and a linkage mechanism that are linked together; the locking mechanism is used to cooperate with a locking groove provided on the first component, and the linkage mechanism is used to fixally connect with the second component; the locking mechanism can be locked or separated from the locking groove under the drive of the linkage mechanism.

[0006] Based on the detachable connection device provided in this application, the device can be pre-fixed to the second component during use. Then, when the second component and the first component are assembled on-site, only the linkage mechanism needs to be operated to lock the locking mechanism into the locking groove on the first component, thus achieving a fixed connection between the first and second components. When it is necessary to separate the first and second components, the linkage mechanism also only needs to be operated to separate the locking mechanism from the locking groove on the first component, allowing the second component to be detached from the first component. As can be seen from the above disassembly and assembly process, the detachable connection device provided in this application allows the user to operate only one linkage mechanism to drive the locking mechanism to complete the overall action during disassembly and assembly. This "single input, single output" linkage design simplifies the traditional multi-step distributed operation into a single integrated operation, eliminating the tedious steps of disassembling and assembling multiple fasteners one by one, shortening the disassembly and assembly time, and effectively improving disassembly and assembly efficiency.

[0007] In one possible design, the locking mechanism includes a mounting base, a telescopic head, a locking rod, and an elastic element; the mounting base is fixedly connected to the housing of the linkage mechanism; the mounting base has a cavity with an opening facing the linkage mechanism, and at least one side wall is provided with a through hole; the telescopic head is located at the driving end of the linkage mechanism, at least partially extending into the mounting base, and is capable of reciprocating along a first direction under the drive of the linkage mechanism; a driving inclined surface is provided on the side of the telescopic head near the through hole; the locking rod is slidably disposed in the mounting base along a second direction, with one end abutting against the driving inclined surface and the other end facing the through hole; the second direction intersects with the first direction; the elastic element is sleeved on the locking rod, with one end abutting against the locking rod and the other end abutting against the inner wall of the mounting base, for driving the locking rod to reset.

[0008] Based on the detachable connection device provided by this embodiment, the locking mechanism and the locking groove can be locked and separated through the cooperation of the telescopic head, locking rod, and elastic element. At the same time, the elastic element enables the automatic reset of the locking rod, eliminating the need for manual reset, further simplifying the assembly and disassembly steps, overcoming the problems of cumbersome assembly and disassembly and low efficiency in the prior art, and adapting to various modular component connection scenarios that require quick assembly and disassembly.

[0009] In one possible design, the linkage mechanism includes a housing and a drive structure; the housing is used to fix it to the second component; the drive structure includes a first drive rod and a third elastic member, one end of the first drive rod extends outside the housing, and the other end extends into the housing and abuts against one end of the third elastic member; the other end of the third elastic member abuts against the locking mechanism and is used to drive the locking mechanism to lock or separate from the first component.

[0010] Based on the detachable connection device provided by this embodiment, when the first component and the second component are assembled, a thrust can be applied to the part of the first drive rod located outside the housing. The thrust is directly transmitted to the locking mechanism through the first drive rod and the third elastic element. In this way, the locking mechanism can be driven to ensure that the locking rod can be pushed out quickly and forcefully. It has the characteristics of simple structure and easy implementation.

[0011] In one possible design, the linkage mechanism includes a snap-fit ​​structure, which comprises an elastic snap-fit ​​element and a slot. The slot is disposed on the housing. The elastic snap-fit ​​element is located between the first drive rod and the housing and is fixedly connected to the first drive rod. When the elastic snap-fit ​​element is not snapped into the slot, the snap-fit ​​portion of the elastic snap-fit ​​element undergoes elastic deformation under the pressure of the housing. When the first drive rod pushes the locking mechanism to move, the elastic snap-fit ​​element moves synchronously with the first drive rod. When the locking mechanism and the first component are locked together, the snap-fit ​​portion moves to the slot and at least partially recovers its deformation, engaging with the slot to lock the position of the first drive rod.

[0012] Based on the detachable connection device provided in this embodiment, when the locking mechanism is in place, the locking part engages with the locking slot, thereby mechanically locking the position of the first drive rod. At this time, the locking force is borne by the locking structure, eliminating the need to continuously apply a pushing force to the drive rod, which helps to simplify the structure of the linkage mechanism.

[0013] In one possible design, the actuating mechanism includes a second drive rod and an unlocking component; the unlocking component is located inside the housing and is fixedly connected to the elastic locking component; the second drive rod is slidably connected to the housing, with one end extending outside the housing to form an operating end, and the other end extending into the housing and pointing towards the unlocking component; when it is necessary to separate the locking mechanism from the first component, the second drive rod is operated, and the other end of the second drive rod acts on the unlocking component, causing the elastic locking component to undergo elastic deformation, causing the locking part to disengage from the slot. This design offers convenient operation.

[0014] In one possible design, the end of the first drive rod away from the third elastic member is provided with a mounting cavity; the unlocking member is inserted into the mounting cavity along the second direction and is axially fixed relative to the first drive rod; the unlocking member is frame-shaped, the opening of the unlocking member is located in the mounting cavity, and the two opposite side frames of the unlocking member extend out of the mounting cavity around the opening, wherein the side frame near the slot is fixedly connected to the snap-fit ​​part; when the elastic snap-fit ​​member and the slot are in the snap-fit ​​state, there is a gap between the side frame away from the slot and the housing; The second drive rod extends into the mounting cavity along the axial direction of the first drive rod and can move relative to the first drive rod, passing through the opening of the unlocking member; a third drive ramp is provided at the part of the second drive rod that extends into the unlocking member. When the second drive rod moves axially, the third drive ramp can press the frame of the unlocking member away from the slot in the second direction, so that the snapping part of the elastic snapping member is disengaged from the slot.

[0015] In one possible design, the linkage mechanism further includes a fourth elastic element; along the axial direction of the first drive rod, the fourth elastic element is disposed in the mounting cavity, located on the side of the unlocking member away from the second drive rod, and one end of the fourth elastic element abuts against the unlocking member; when the second drive rod moves axially to unlock, the end face of the second drive rod presses against the fourth elastic element.

[0016] Based on the detachable connection device provided by this embodiment, the entire process of locking, unlocking, and resetting can be repeated, which meets the needs of quick assembly and disassembly, and the resetting action does not require additional manual operation, thus improving the ease of operation.

[0017] In one possible design, a limit ring is provided at the end of the housing away from the mounting base, and a limit boss is provided circumferentially on the first drive rod to abut against the limit ring.

[0018] Based on the detachable connection device provided by this embodiment, the cooperation between the limiting ring and the limiting boss can prevent the first drive rod from coming out of the housing during reset, thereby improving the connection and operational reliability of the device.

[0019] In one possible design, the telescopic head includes a first mating section, a second mating section, and a drive section arranged along the telescopic head's moving direction; at least a portion of the first mating section is located within the housing and abuts against a third elastic member; the second mating section is fixedly connected between the first mating section and the drive section and is located within the mounting base, and when the locking mechanism is in the unlocked state, it can abut against the axial end of the housing; the drive section is located within the mounting base, and a first drive ramp and a second drive ramp are arranged on the drive section.

[0020] Based on the detachable connection device provided by this embodiment, the telescopic head adopts a three-section design, which can ensure smooth power transmission of the telescopic head and improve work reliability.

[0021] Secondly, based on the same inventive concept, the present invention also provides an aircraft, including any of the above-mentioned detachable connecting devices, wherein the first component is the fuselage of the aircraft and the second component is the tail fin of the aircraft.

[0022] Since the aircraft provided by the second invention includes any of the aforementioned detachable connection devices, it has the beneficial effects brought about by any of the aforementioned detachable connection devices, which will not be elaborated here. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the application structure of a detachable connection device provided in an embodiment of this application.

[0024] Figure 2 This is a schematic diagram of a detachable connection device provided in an embodiment of this application.

[0025] Figure 3 for Figure 2 The diagram shows an internal structure of a detachable connection device.

[0026] Figure 4 This is a schematic diagram of the internal structure of a linkage mechanism.

[0027] Figure 5 for Figure 4 A schematic diagram of the cooperation structure between the second drive rod and the unlocking component.

[0028] The attached figures are labeled as follows: 11. First component; 111. Locking groove; 1111. First lock hole; 12. Second component; 121. First mounting slot; 13. Detachable connection device; 131. Locking mechanism; 1311. Mounting base; 13112. First through hole; 1312. Telescopic head; 13121. First driving inclined surface; 1312A. First mating section; 1312B. Second mating section; 1312C. Driving section; 1313. First locking rod; 13131. Boss; 1314. First elastic element; 1315. Second locking rod; 1316. Second elastic element; 132. Linkage mechanism; 1321. Housing; 13211. Limiting ring; 13212. Flange; 13213. Slot; 1322. First drive rod; 13221. Limiting boss; 13222. Mounting cavity; 1323. Third elastic element; 1324. Elastic snap-fit ​​element; 13241. Snap-fit ​​part; 1325. Second drive rod; 13251. Third drive ramp; 1326. Unlocking element; 13261. Opening; 1327. Fourth elastic element; 1328. Spring seat; 1329. Limiting part. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0031] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0032] The present application will be described in detail below with reference to the accompanying drawings.

[0033] Figure 1 This is a schematic diagram illustrating the application structure of a detachable connection device provided in an embodiment of this application. Please refer to... Figure 1The detachable connection device provided in this application is used to detachably connect the first component 11 and the second component 12, including a locking mechanism 131 and a linkage mechanism 132 that are linked together; the locking mechanism 131 is used to cooperate with the locking groove 111 provided on the first component 11, and the linkage mechanism 132 is used to be fixedly connected to the second component 12. The locking mechanism 131 can be locked or separated from the locking groove 111 under the drive of the linkage mechanism 132.

[0034] Please continue to refer to this. Figure 1 In use, the detachable connecting device 13 can be pre-fixed to the fixing structure on the second component 12. Then, when the second component 12 and the first component 11 are assembled on-site, simply operating the linkage mechanism 132 on the detachable connecting device 13 will lock the locking mechanism 131 of the detachable connecting device 13 into the locking groove 111 on the first component 11, thus achieving a fixed connection between the first component 11 and the second component 12. When it is necessary to separate the first component 11 and the second component 12, similarly, simply operating the linkage mechanism 132 on the detachable connecting device 13 will separate the locking mechanism 131 from the locking groove 111 on the first component 11, allowing the second component 12 to be detached from the first component 11.

[0035] As can be seen from the above disassembly and assembly process, the detachable connection device provided in this application allows the user to operate only one linkage mechanism 132 during disassembly and assembly, which drives the locking mechanism 131 to complete the overall action. This "single input, single output" linkage design simplifies the traditional multi-step decentralized operation into a one-step integrated operation, eliminating the tedious steps of disassembling and assembling multiple fasteners one by one, shortening the disassembly and assembly time, and effectively improving the disassembly and assembly efficiency.

[0036] It is understood that in this application, the first component 11 and the second component 12, as the objects to be connected, need to possess a certain structural strength. Specifically, the first component 11 must be able to withstand the locking force of the locking mechanism 131. The second component 12 must be able to stably support the detachable connecting device 13 so that the locking mechanism 131 can be aligned with the locking groove 111 during assembly. The first component 11 and the second component 12 are preferably made of metal. Specifically, the first component 11 and the second component 12 can be structural components such as the fuselage, wings, access panels, fairings, and various doors of an aircraft, or they can be onboard equipment and interior components such as sensors and interior panels.

[0037] It is also understandable that the detachable connection device of this application has a wide range of applications and is not limited to the field of aircraft. It can be used for connections between most modular components that meet structural strength requirements.

[0038] It is also understandable that there can be multiple ways to implement the locking mechanism in this application, such as a flexible claw locking mechanism or a locking pin locking mechanism.

[0039] It is also understandable that there can be multiple ways to implement the linkage mechanism in this application, such as a push-type linkage mechanism, a rotary linkage mechanism, etc.

[0040] It is also understood that the fixing structure in this application can be integrally formed with the second component 12 or can be set separately. The connection method between the connecting component 13 and the fixing structure is not limited to threaded fastener connection, and other connection methods, such as welding, can be selected according to different usage scenarios and requirements.

[0041] Figure 2 This is a schematic diagram of a detachable connection device provided in an embodiment of this application. Figure 3 for Figure 2 The diagram shows an internal structure of a detachable connection device.

[0042] Please combine Figures 1 to 3 In one embodiment of this application, a first locking hole 1111 and a second locking hole are respectively provided on opposite side walls of the locking groove 111. The locking mechanism 131 includes a mounting base 1311, a telescopic head 1312, a first locking rod 1313, a first elastic member 1314, a second locking rod 1315, and a second elastic member 1316.

[0043] Mounting base 1311 is fixedly connected to housing 1321 of linkage mechanism 132 and is adapted to the shape of locking groove 111. Mounting base 1311 includes a cavity with an opening facing linkage mechanism 132. The opposite side walls of mounting base 1311 are provided with a first through hole 13112 and a second through hole. The first through hole 13112 is opposite to the first locking hole 1111, and the second through hole is opposite to the second locking hole.

[0044] The telescopic head 1312 is located at the drive end of the linkage mechanism 132, and at least part of it extends into the mounting base 1311. It has a first drive ramp 13121 and a second drive ramp on opposite sides.

[0045] The first locking rod 1313, the second locking rod 1315, the first elastic element 1314, and the second elastic element 1316 are all located within the mounting base 1311. One end of the first locking rod 1313 abuts against the first driving inclined surface 13121, and the other end faces the first through hole 13112. One end of the second locking rod 1315 abuts against the second driving inclined surface, and the other end faces the second through hole.

[0046] A first elastic element 1314 is sleeved on a first locking rod 1313. One end of the first elastic element 1314 abuts against a boss 13131 on the first locking rod, and the other end abuts against the inner wall of the mounting base 1311. A second elastic element 1316 is sleeved on a second locking rod 1315. One end of the second elastic element 1316 abuts against a boss on the second locking rod 1315, and the other end abuts against the inner wall of the mounting base 1311 on the other side.

[0047] For details, please refer to [link / reference]. Figures 1 to 3 In this embodiment, the locking mechanism 131 is based on "telescopic head 1312 driving + double locking rods locking on both sides + elastic element reset". It achieves locking by relying on the first locking holes 1111 and the second locking holes on both sides of the locking groove 111, and simultaneously achieves rapid reset through the elastic element. This allows for quick assembly and disassembly of component one and component two, and is easy to operate. Its working principle is as follows: Locking process: When assembling the first component 11 and the second component 12, the first component 11 and the second component 12 are first aligned so that the mounting base 1311 of the locking mechanism 131 is aligned and inserted into the locking groove 111 of the first component 11. Then, the telescopic head 1312 is driven by the linkage mechanism 132. As the telescopic head 1312 continues to extend, the first driving inclined surface 13121 and the second driving inclined surface on both sides of it press against the ends of the first locking rod 1313 and the second locking rod 1315, respectively. The first driving inclined surface 13121 pushes the first locking rod 1313 to move towards the first locking hole 1111, and the second driving inclined surface pushes the second locking rod 1315 to move towards the second locking hole. At this time, the first elastic element 1314 and the second elastic element 1316 sleeved on the first locking rod 1313 and the second locking rod 1315 are compressed, generating an elastic restoring force. When the telescopic head 1312 extends to the preset position, the end of the first locking rod 1313 is fully inserted into the first locking hole 1111, and the end of the second locking rod 1315 is fully inserted into the second locking hole. At this time, the locking mechanism 131 and the first component 11 form a bidirectional symmetrical locking, thereby realizing the fixed connection between the first component 11 and the second component 12. The locking process only requires driving the linkage mechanism 132 to drive the telescopic head 1312 to extend in, which is convenient to operate and reliable to lock.

[0048] Separation Process: When disassembling the first component 11 and the second component 12, the telescopic head 1312 is driven in the opposite direction by the linkage mechanism 132, causing the telescopic head 1312 to gradually withdraw from the mounting base 1311. As the telescopic head 1312 withdraws, the compressive force of the first driving inclined surface 13121 and the second driving inclined surface on the first locking rod 1313 and the second locking rod 1315 gradually disappears. At this time, the compressed first elastic element 1314 and the second elastic element 1316 release their elastic restoring force, respectively driving the first locking rod 1313 and the second locking rod 1315 to move in the opposite direction, causing the first locking rod 1313 to withdraw from the first locking hole 1111 and the second locking rod 1315 to withdraw from the second locking hole. The locking mechanism 131 and the first component 11 are then released from their locking state. The first component 11 and the second component 12 can then be easily separated. The separation process requires no additional operation, relying on the automatic reset of the elastic elements, which greatly improves the efficiency of disassembly and assembly.

[0049] Additional explanation: The core advantage of the locking mechanism 131 provided in this embodiment is that the double locking rods are symmetrically arranged and respectively cooperate with the lock holes on both sides of the locking groove 111, so that the force is evenly distributed when locking, which can effectively prevent the lock from loosening. At the same time, the setting of the elastic element realizes the automatic reset of the locking rods, eliminating the need for manual reset of the locking rods, further simplifying the disassembly and assembly steps, overcoming the problems of cumbersome disassembly and assembly and low efficiency in the prior art, and adapting to various modular component connection scenarios that require quick disassembly and assembly.

[0050] It should also be noted that the structure using double locking rods to achieve locking on both sides is only one specific embodiment of this application. In other embodiments of this application, the number of locking rods can also be one. Correspondingly, the telescopic head 1312 can only have a driving ramp on one side, the mounting base 1311 can have a corresponding through hole, and the locking groove 111 on the first component 11 can have a corresponding lock hole. In addition, in some other embodiments of this application, the number of locking rods can also be other numbers, such as four. In this case, the telescopic head 1312 can have a corresponding number of driving ramps in its circumferential direction, the mounting base 1311 can have a corresponding number of through holes, and the locking groove 111 on the first component 11 can also have a corresponding number of lock holes.

[0051] Understandably, a positioning element is fixed to the inner wall of the mounting base 1311. This positioning element limits the locking rod, ensuring that it can only slide in the second direction. As an example, the positioning element can be a positioning tube. The diameter of the positioning tube is larger than the diameter of the through hole, larger than the diameter of the locking rod, and larger than the diameter of the elastic element, but smaller than the diameter of the boss 13131 on the locking rod. The locking rod and the elastic element can be fitted inside the positioning tube. The boss 13131 on the locking rod also serves to prevent the locking rod from dislodging from the positioning tube and exiting the mounting base 1311.

[0052] Figure 4 This is primarily a schematic diagram of the internal structure of a linkage mechanism. Please continue to refer to it. Figures 1 to 4 In one embodiment of this application, the linkage mechanism 132 includes a housing 1321 and a drive structure. The housing 1321 is fixedly connected to the second component 12 via a fixing structure on the second component 12. The drive structure includes a first drive rod 1322 and a third elastic member 1323. One end of the first drive rod 1322 extends outside the housing 1321, and the other end extends into the housing 1321 and abuts against one end of the third elastic member 1323 inside the housing 1321. The other end of the third elastic member 1323 abuts against the telescopic head 1312 in the locking mechanism 131.

[0053] Specifically, in this embodiment, the function of the drive structure is to provide driving force for the telescopic head 1312. The housing 1321 provides guidance and installation space for the first drive rod 1322 and the third elastic element 1323, ensuring that the drive assembly will not deviate during reciprocating motion and ensuring that the telescopic head 1312 always moves along the axis.

[0054] When the first component 11 is assembled with the second component 12, a thrust can be applied to the part of the first drive rod 1322 located outside the housing 1321. The thrust is directly transmitted to the telescopic head 1312 through the first drive rod 1322 and the third elastic element 1323. In this way, the telescopic head 1312 can be driven, which can ensure that the locking rod can be pushed out quickly and powerfully. It has the characteristics of simple structure and easy implementation.

[0055] It should be noted that, in order to drive the telescopic head 1312, in addition to the combination structure of the first drive rod 1322 and the third elastic element 1323 as defined in this method, other forms of linear movement structures can also be used.

[0056] Please continue to refer to this. Figure 3 and Figure 4 In one embodiment of this application, the linkage mechanism 132 includes a snap-fit ​​structure, which includes an elastic snap-fit ​​member 1324 and a slot 13213. The slot 13213 is disposed on the housing 1321. The elastic snap-fit ​​member 1324 is disposed between the first drive rod 1322 and the housing 1321. One end of the elastic snap-fit ​​member 1324 near the telescopic head 1312 is fixedly connected to the first drive rod 1322, and the other end of the elastic snap-fit ​​member 1324 forms a snap-fit ​​portion 13241 that matches the slot 13213. When the elastic snap-fit ​​member 1324 is not snapped into the slot 13213, the snap-fit ​​portion of the elastic snap-fit ​​member 1324 undergoes elastic deformation under the pressure of the housing 1321.

[0057] When the first drive rod 1322 pushes the locking mechanism 131 to move, the elastic snap-fit ​​part 1324 moves synchronously with the first drive rod 1322. When the locking mechanism 131 and the first component 11 are locked together, the snap-fit ​​part 13241 moves to the slot 13213 and at least partially recovers its deformation, engaging with the slot 13213 to lock the position of the first drive rod 1322.

[0058] Specifically, in this embodiment, the snap-fit ​​structure functions as follows: when the locking mechanism 131 is in position, the snap-fit ​​part 13241 snaps into the slot 13213, thereby mechanically locking the position of the first drive rod 1322. At this time, the locking force is borne by the snap-fit ​​structure, eliminating the need to continuously apply a pushing force to the drive rod, which helps to simplify the structure of the linkage mechanism 132.

[0059] In addition, the elastic snap-fit ​​member 1324 is disposed between the first drive rod 1322 and the housing 1321. In this way, the space between the first drive rod 1322 and the housing 1321 can be effectively utilized, thereby improving the compactness of the overall structure and reducing the volume.

[0060] It is understood that the elastic latching member 1324 in this embodiment is a component capable of elastic deformation. When not locked, the elastic latching portion 13241 is in a deformed state. When locked, the latching portion 13241 of the elastic latching member 1324 restores at least part of its deformation, thereby forming a latch with the slot 13213. When unlocking, an external force needs to be applied again to cause the latching portion 13241 to deform and disengage from the slot 13213, thereby achieving unlocking.

[0061] It should be noted that, Figure 3 , Figure 4 The snap-fit ​​structure shown is only one embodiment of this application. In other embodiments of this application, the snap-fit ​​structure may have other forms, such as the slot 13213 in addition to... Figure 3 , Figure 4 In addition to the through slot shown, it can also be a groove. The shape of the slot 13213 can be rectangular, circular, or other irregular shapes.

[0062] Figure 5 for Figure 4 Please refer to the schematic diagram of the mating structure between the second drive rod and the unlocking component. Figures 2 to 5In some embodiments of this application, the linkage mechanism 132 includes a second drive rod 1325 and an unlocking member 1326; the unlocking member 1326 is located inside the housing 1321 and is fixedly connected to the elastic locking member 1324; the second drive rod 1325 is slidably connected to the housing 1321, one end of which extends to the outside of the housing 1321 to form an operating end, and the other end extends into the housing 1321 and points towards the unlocking member 1326; when it is necessary to separate the locking mechanism 131 from the first component 11, the second drive rod 1325 is operated, and the other end of the second drive rod 1325 acts on the unlocking member 1326, causing the elastic locking member 1324 to undergo elastic deformation, so that the locking part 13241 disengages from the slot 13213.

[0063] Based on the detachable connection device provided in this embodiment, the operating end of the second drive rod 1325 extends outside the housing 1321 for easy user operation, and the unlocking member 1326 is fixedly connected to the elastic snap-fit ​​member 1324. The structure is compact and has few parts, which is conducive to miniaturization design and low-cost manufacturing. The unlocking member 1326 can have various shapes, such as plate-shaped, rod-shaped, ring-shaped, etc.

[0064] Please continue to refer to this. Figures 2 to 5 In one embodiment of this application, a mounting cavity 1322 is provided at the end of the first drive rod 1322 away from the third elastic member 1323.

[0065] The unlocking member 1326 is inserted into the mounting cavity 13222 along the second direction and is axially fixed relative to the first drive rod 1322. The unlocking member 1326 is frame-shaped, with an opening 13261 located inside the mounting cavity, and two opposing side frames extending out of the mounting cavity 13222 around the opening 13261; wherein, the side frame near the slot 13213 is fixedly connected to the snap-fit ​​part 13241, and when the elastic snap-fit ​​member 1324 is in the snap-fit ​​state with the slot 13213, there is a gap between the side frame away from the slot 13213 and the housing 1321.

[0066] The second drive rod 1325 extends into the mounting cavity 13222 along the axial direction of the first drive rod 1322 and is movable relative to the first drive rod 1322, and passes through the opening 13261 of the unlocking member 1326; and a third drive ramp is provided at the part of the second drive rod 1325 that extends into the unlocking member 1326. When the second drive rod 1325 moves axially, the third drive ramp presses the frame of the unlocking member 1326 away from the slot 13213, so that the snap-fit ​​part 13241 of the elastic snap-fit ​​member 1324 disengages from the slot 13213.

[0067] In some examples, the second direction is perpendicular to the axial direction of the first drive rod 1322. The portion of the second drive rod 1325 that extends into the unlocking member 1326 is wedge-shaped.

[0068] Please combine Figure 1 , Figures 3 to 5 Based on the detachable connection device provided in this embodiment, when the first component 11 is separated from the second component 12, the second drive rod 1325 is pushed toward the telescopic head 1312. The third drive ramp 13251 of the second drive rod 1325 will gradually abut against the side of the unlocking member 1326 away from the slot 13213, so as to generate a pulling force away from the slot 13213 on the snap-fit ​​part 13241 fixed at the side of the unlocking member 1326. Since there is a gap between the side of the frame away from the slot 13213 and the housing 1321 in the snap-fit ​​state, as the second drive rod 1325 continues to push toward the interior of the mounting cavity, the unlocking member 1326 is displaced away from the slot 13213 by the squeezing force of the third drive ramp 13251 in the second direction, thereby driving the snap-fit ​​part 13241 to move away from the slot 13213 and then being pulled out of the slot 13213.

[0069] When the locking part 13241 disengages from the slot 13213, the second drive rod 1325 is released, the elastic potential energy stored in the third elastic element 1323 is released, which drives the first drive rod 1322 to move in the opposite direction, thereby driving the telescopic head 1312 to retract, thereby unlocking the locking mechanism 131 and completing the separation of the first component 11 and the second component 12.

[0070] Please continue to refer to this. Figure 3 and Figure 4 The end of the second drive rod 1325 furthest from the mounting cavity can always be located outside the mounting cavity, which makes it easy for users to hold and operate, and is suitable for manual disassembly and assembly scenarios.

[0071] It should also be noted that, in addition to the unlocking structure consisting of the second drive rod 1325 and the unlocking component 1326 provided in this application, the elastic snap-fit ​​component 1324 and the slot 13213 can also be separated in other ways in some other scenarios, such as by pressing the snap-fit ​​part 13241.

[0072] Please continue to combine Figure 3 and Figure 4 In some other preferred embodiments of this application, the slot 13213 is a through slot, which makes it easier to deform the locking part 13241 by external pressing in the event of internal structural failure, so as to separate it from the slot 13213 and unlock it.

[0073] Please continue to refer to this. Figure 3 and Figure 4In some embodiments of this application, the linkage mechanism 132 includes a fourth elastic member 1327; along the axial direction of the first drive rod 1322, the fourth elastic member 1327 is disposed in the mounting cavity, located on the side of the unlocking member 1326 away from the second drive rod 1325, and one end of the fourth elastic member 1327 abuts against the unlocking member 1326; when the second drive rod 1325 moves axially to unlock, the end face of the second drive rod 1325 presses against the fourth elastic member 1327.

[0074] For details, please refer to [link / reference]. Figure 3 and Figure 4 In this embodiment, the fourth elastic element 1327 functions in the following two ways: Firstly, when the first component 11 and the second component 12 are assembled, along the axial direction of the first drive rod 1322, one side of the unlocking member 1326 abuts against the groove wall of the slot on the first drive rod 1322, and the other side of the unlocking member 1326 is pressed by the fourth elastic member 1327. In this way, the axial position of the unlocking member 1326 relative to the first drive rod 1322 remains unchanged, thereby stabilizing the position of the locking part 13241 fixed on the unlocking member 1326, which is conducive to the effective locking of the locking part 13241 and the slot 13213.

[0075] Secondly, when the first component 11 separates from the second component 12, the fourth elastic element 1327 is further compressed during the unlocking process. Therefore, when the second drive rod 1325 is released, the fourth elastic element 1327 releases its elastic restoring force, which can push the second drive rod 1325 to quickly return to its original position away from the telescopic head 1312. The first drive rod 1322 quickly returns to its original position under the action of the third elastic element 1323, and the elastic locking member 1324 returns to its natural state as the first drive rod 1322 returns to its original position, and the locking part 13241 is once again in a lockable state.

[0076] Based on the detachable connection device provided by this embodiment, the entire process of locking, unlocking, and resetting can be repeated, which meets the needs of quick assembly and disassembly, and the resetting action does not require additional manual operation, thus improving the ease of operation.

[0077] Please continue to refer to this. Figure 4 As an example, when the fourth elastic member 1327 is installed, one end of the fourth elastic member 1327 abuts against the unlocking member 1326 through the spring seat 1328, and the other end of the fourth elastic member 1327 abuts against the limiting part 1329 provided near the bottom of the mounting cavity 13222 through another spring seat.

[0078] Please continue to refer to this. Figure 3 and Figure 4In some embodiments of this application, a limiting ring 13211 is provided at the end of the housing 1321 away from the mounting base 1311, and a limiting boss 13221 is provided on the outer periphery of the first drive rod 1322. When the first component 11 and the second component 12 are separated, the limiting boss 13221 abuts against the limiting ring 13211.

[0079] Specifically, when the first component 11 and the second component 12 are assembled, the first drive rod 1322 moves toward the telescopic head 1312, and the limiting boss 13221 separates from the limiting ring 13211.

[0080] When the first component 11 is disassembled from the second component 12, the first drive rod 1322 moves in the opposite direction and resets under the action of the third elastic element 1323. At this time, the limiting boss 13221 moves closer to the limiting ring 13211 as the first drive rod 1322 moves, until the limiting boss 13221 abuts against the limiting ring 13211, and the first drive rod 1322 resets to its original position.

[0081] Based on the detachable connection device provided by this embodiment, due to the cooperation between the limiting ring 13211 and the limiting boss 13221, the first drive rod 1322 can be prevented from coming out of the housing 1321 during reset, thereby improving the connection and operational reliability of the device.

[0082] Please continue to refer to this. Figure 3 In some embodiments of this application, the telescopic head 1312 includes a first mating section 1312A, a second mating section 1312B, and a driving section 1312C arranged along the moving direction of the telescopic head 1312.

[0083] At least a portion of the first mating section 1312A is located within the housing 1321 and abuts against the third elastic member 1323.

[0084] The second mating section 1312B is fixedly connected between the first mating section 1312A and the drive section 1312C, and is located inside the mounting base 1311. When the locking mechanism 131 is in the unlocked state, it can abut against the axial end of the housing 1321.

[0085] The drive segment 1312C is located inside the mounting base 1311, and the first drive ramp 13121 and the second drive ramp are disposed in the drive segment 1312C.

[0086] Specifically, in this embodiment, at least a portion of the first mating section 1312A is located within the housing 1321 and abuts against the third elastic member 1323. Thus, the elastic force of the third elastic member 1323 can be transmitted through the first mating section 1312A to the entire telescopic head 1312, driving the telescopic head 1312 to extend into or retract from the locking groove 111. Simultaneously, the housing 1321 provides a stable installation and guiding space for the first mating section 1312A, preventing misalignment or jamming when the first mating section 1312A mates with the third elastic member 1323, ensuring smooth power transmission.

[0087] The second mating section 1312B is located between the first mating section 1312A and the drive section 1312C, and is situated within the mounting base 1311, thus achieving a transitional connection between the telescopic head 1312 and the housing 1321 and the mounting base 1311. During unlocking, the third elastic element 1323 releases a restoring force, causing the telescopic head 1312 to retract. When the telescopic head 1312 retracts to the preset unlocking position, the second mating section 1312B abuts against the axial end of the housing 1321, achieving an unlocking limit for the telescopic head 1312. This prevents the telescopic head 1312 from excessively retracting due to excessive restoring force, ensuring a stable position of the telescopic head 1312 after unlocking. This ensures that the alignment is not affected during the next locking operation and that there is no interference with the inner wall of the housing 1321.

[0088] The first driving ramp 13121 and the second driving ramp are disposed on the driving section 1312C. The driving section 1312C is located inside the mounting base 1311. The mounting base 1311 can guide and protect the engagement between the driving section 1312C and the double locking rod, and prevent misalignment when the driving ramp engages with the end of the locking rod.

[0089] Please combine Figure 1 and Figure 2 In some embodiments of this application, the fixing structure includes a first mounting groove 121 and a second mounting hole. The second mounting hole penetrates the groove wall of the first mounting groove 121 near the first component 11.

[0090] The linkage mechanism 132 is located inside the first mounting groove 121. A flange 13212 is provided at one end of the housing 1321 near the locking mechanism 131. The flange 13212 is fixedly connected to the groove wall of the first mounting groove 121. The locking mechanism 131 extends out of the first mounting groove 121 through the second mounting hole.

[0091] Specifically, in this embodiment, the first mounting groove 121 serves as the overall mounting carrier for the linkage mechanism 132, providing a stable mounting space. The second mounting hole serves as the extension channel for the locking mechanism 131, enabling the locking mechanism 131 to align with the locking groove 111 of the first component 11. The flange 13212 serves as the connection medium between the housing 1321 and the fixed structure, ensuring the secure fixing of the linkage mechanism 132 to the fixed structure.

[0092] In practical applications, the dimensions of the first mounting slot 121 can be designed according to the overall volume of the linkage mechanism 132. This ensures that the linkage mechanism 132 is fully embedded without any loosening, while also allowing sufficient travel for the axial movement of the first drive rod 1322 and the unlocking operation of the second drive rod 1325, without any space interference issues. At the same time, the first mounting slot 121 can protect the internal components of the linkage mechanism 132 from external dust, impurities, and impacts, which aligns with the compact and lightweight design requirements of the linkage mechanism 132 without increasing the overall size and weight of the device.

[0093] Furthermore, fixed-wing UAVs, due to their superior functionality and modular integration, are now widely used in surveying, geology, petroleum, agriculture, and forestry. Currently, due to the structural limitations of fixed-wing design, most fixed-wing UAVs employ a fixed connection between the tail fin and fuselage, requiring the tail fin to be directly fixed to the fuselage. However, during use, the tail fin is susceptible to damage from airflow or landing collisions. As a vulnerable component, tail fin replacement requires disassembling multiple fasteners, resulting in a significant time commitment. Additionally, the difficulty in disassembling the tail fin leads to it often being directly assembled and fixed to the fuselage during transport. This significantly increases the overall size of the UAV during transport, making it impossible to store in a small space. Furthermore, the stress concentration at the connection points during transport can easily cause cracking due to bumps and vibrations.

[0094] Based on this, please continue to refer to Figure 1 Based on the same inventive concept, the present invention also provides an aircraft, including any of the aforementioned detachable connecting devices, wherein the first component 11 is the fuselage of the aircraft, and the second component 12 is the tail fin of the aircraft. In this way, the tail fin can be quickly connected and disconnected from the fuselage via the detachable connecting device 13, reducing the time spent on assembling and disassembling the tail fin and fuselage, and improving the efficiency of assembly and disassembly. Furthermore, due to the ease of assembling and disassembling the tail fin and fuselage, the tail fin and fuselage can be packaged separately during transportation, reducing the size of the fuselage during transport and improving the safety of the fuselage during transport.

[0095] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A detachable connecting device for detachably connecting a first component and a second component, characterized in that, It includes a locking mechanism and a linkage mechanism that are interconnected; the locking mechanism is used to cooperate with the locking groove provided on the first component, and the linkage mechanism is used to be fixedly connected to the second component. The locking mechanism can be locked or separated from the locking groove under the drive of the linkage mechanism.

2. The detachable connecting device according to claim 1, characterized in that, The locking mechanism includes a mounting base, a telescopic head, a locking rod, and an elastic element; The mounting base is fixedly connected to the housing of the linkage mechanism; the mounting base has a cavity with an opening facing the linkage mechanism, and at least one side wall is provided with a through hole; The telescopic head is located at the drive end of the linkage mechanism, extends at least partially into the mounting base, and can reciprocate along the first direction under the drive of the linkage mechanism; a drive ramp is provided on the side of the telescopic head near the through hole; The locking rod is slidably disposed in the mounting base along the second direction, with one end abutting against the driving inclined surface and the other end facing the through hole; the second direction intersects with the first direction; The elastic element is sleeved on the locking rod, with one end abutting against the locking rod and the other end abutting against the inner wall of the mounting base, for driving the locking rod to reset.

3. The detachable connecting device according to claim 1, characterized in that, The linkage mechanism includes a housing and a drive structure; The housing is used for fixed connection with the second component; The driving structure includes a first driving rod and a third elastic element. One end of the first driving rod extends outside the housing, and the other end extends into the housing and abuts against one end of the third elastic element. The other end of the third elastic element abuts against the locking mechanism and is used to drive the locking mechanism to lock or separate from the first component.

4. The detachable connecting device according to claim 3, characterized in that, The linkage mechanism includes a snap-fit ​​structure, which includes an elastic snap-fit ​​element and a snap-fit ​​groove; the snap-fit ​​groove is disposed on the housing. The elastic snap-fit ​​component is located between the first drive rod and the housing, and is fixedly connected to the first drive rod; when the elastic snap-fit ​​component is not snapped into the slot, the snap-fit ​​portion of the elastic snap-fit ​​component undergoes elastic deformation due to the compression of the housing; When the first drive rod moves, thereby driving the locking mechanism, the elastic snap-fit ​​member moves synchronously with the first drive rod. When the locking mechanism locks with the first component, the snap-fit ​​part moves to the slot and at least partially restores its deformation, engaging with the slot to lock the position of the first drive rod.

5. The detachable connecting device according to claim 4, characterized in that, The linkage mechanism includes a second drive rod and an unlocking component; The unlocking component is located inside the housing and is fixedly connected to the elastic snap-fit ​​component; The second drive rod is slidably connected to the housing, with one end extending outside the housing to form an operating end, and the other end extending into the housing and pointing towards the unlocking element; When it is necessary to separate the locking mechanism from the first component, the second drive rod is operated. The other end of the second drive rod acts on the unlocking component, causing the elastic locking component to undergo elastic deformation, so that the locking part is disengaged from the slot.

6. The detachable connecting device according to claim 5, characterized in that, The end of the first drive rod away from the third elastic element is provided with a mounting cavity; The unlocking component is inserted into the mounting cavity and is axially fixed relative to the first drive rod; The unlocking component is frame-shaped, with an opening located inside the mounting cavity. Two opposing side frames extend out of the mounting cavity around the opening. The side frame closer to the slot is fixedly connected to the snap-fit ​​portion. When the elastic snap-fit ​​component is snapped into the slot, there is a gap between the side frame away from the slot and the housing. The second drive rod extends into the mounting cavity along the axial direction of the first drive rod and is movable relative to the first drive rod, passing through the opening of the unlocking member; a third drive ramp is provided at the part of the second drive rod that extends into the unlocking member, and when the second drive rod moves axially, the third drive ramp presses the frame of the unlocking member away from the slot, causing the snapping part of the elastic snapping member to disengage from the slot.

7. The detachable connecting device according to claim 6, characterized in that, The linkage mechanism also includes a fourth elastic element; Along the axial direction of the first drive rod, the fourth elastic element is disposed in the mounting cavity, located on the side of the unlocking member away from the second drive rod, and one end of the fourth elastic element abuts against the unlocking member; When the second drive rod moves axially to unlock, the end face of the second drive rod presses against the fourth elastic element.

8. The detachable connecting device according to claim 7, characterized in that, A limiting ring is provided at one end of the housing away from the locking mechanism, and a limiting boss is provided circumferentially on the first drive rod to abut against the limiting ring.

9. The detachable connecting device according to claim 2, characterized in that, The telescopic head includes a first mating section, a second mating section, and a driving section arranged along the telescopic head's moving direction; At least a portion of the first mating section is located within the housing and is opposite to the driving portion of the linkage mechanism; The second mating section is fixedly connected between the first mating section and the driving section, and is located inside the mounting base. When the locking mechanism is in the unlocked state, it can abut against the fixed part of the linkage mechanism. The drive section is located within the mounting base, and the drive ramp is disposed on the drive section.

10. An aircraft, characterized in that, Includes the detachable connection device according to any one of claims 1-9, wherein the first component is the fuselage of the aircraft and the second component is the tail fin of the aircraft.

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