A drawer-type drone nest

Abstract

This invention relates to the field of UAV nest technology, and particularly to a drawer-type UAV nest, comprising a base, a primary linear slide rail mounted on the base, a secondary linear slide rail slidably mounted on the primary linear slide rail, a landing pad slidably mounted on the secondary linear slide rail, a chain transmission mechanism and a drive source mounted on the base. The secondary linear slide rail has centering wings on its two outer side walls, and a locking element is rotatably mounted on the outer side wall of the secondary linear slide rail. The drive source drives the chain transmission mechanism to slide the landing pad. During the UAV centering process, the locking element and a limiting element on the base stop the UAV's rear footrest on the landing pad, causing it to be blocked and centered by the centering wings. This allows the UAV's rear footrest to enter the rear footrest limiting groove under the guidance of the centering guide surface, achieving UAV centering. Simultaneously, the locking element and the limiting element unlock, causing the secondary linear slide rail to retract. This allows the UAV nest to achieve landing pad extension and retraction and UAV centering using a single drive source.

Description

Technical Field

[0001] This invention relates to the field of drone nesting technology, and in particular to a drawer-type drone nest. Background Technology

[0002] Drone nests are widely used in various scenarios that require automated docking and launch of drones, such as drone logistics, agricultural plant protection, and power line inspection.

[0003] Currently, existing drawer-type drone nests typically include a casing, a drive module, a centering device, and a landing pad. The drive module is located inside the casing and is used to drive the landing pad to extend or retract into the cabin. The centering device is located on the landing pad and typically includes a drive motor and a centering component. The drive unit is used to drive the centering component to center the drone. For example, the existing patent publication number CN213502945U discloses a mobile nest for automatic battery replacement of a small drone and its landing pad. Its centering device is mainly composed of a drive motor and frame fixing claws. Two drive motors are set at the bottom of its landing platform, and four waist-shaped slots are arranged in an array in the middle of the landing platform, located on both sides of the two drive motors. The frame fixing claws extend out of the waist-shaped slots to fix the drone frame. When moving, the frame fixing claws are driven by the drive motors, and the two sets of frame fixing claws move towards each other simultaneously to clamp, fix, and center the drone.

[0004] In summary, the existing drawer-type drone nest uses one drive module to drive the extension and retraction of the landing pad, and another drive motor to drive the centering component to center the drone. This means that the existing drone nest cannot use the same drive source to achieve both the extension and retraction of the landing pad and the centering of the drone, which greatly increases the manufacturing cost of the drone nest. Summary of the Invention

[0005] One of the objectives of this invention is to provide a drawer-type drone nest, which aims to solve the technical problem that existing drone nests cannot use a single drive source to achieve the extension and retraction of the landing pad and the centering of the drone.

[0006] To achieve the above objectives, the present invention provides a drawer-type drone nest, comprising:

[0007] base;

[0008] A primary linear slide rail is fixed to the base. The axis of the primary linear slide rail is the first horizontal direction, and the horizontal direction perpendicular to the first horizontal direction is designated as the second horizontal direction.

[0009] The secondary linear slide rail is slidably mounted on the primary linear slide rail along the first horizontal direction, and centering wings are provided on both outer side walls of the secondary linear slide rail along the second horizontal direction.

[0010] A locking element is rotatably mounted on at least one outer wall of the secondary linear slide rail via a rotating shaft. The locking element is located behind the centering wing. A torsion spring is sleeved on the rotating shaft. The torsion spring is located between the locking element and the secondary linear slide rail, and the opposite ends of the torsion spring are respectively connected to the secondary linear slide rail and the locking element.

[0011] The landing pad is slidably set on a secondary linear slide rail along the first horizontal direction. The landing pad can slide under the centering wing along the first horizontal direction. The upper surface of the landing pad includes front foot docking areas for the two front feet of the UAV and two rear foot docking areas for the two rear feet of the UAV. The two rear foot docking areas are symmetrical about the central axis of the landing pad in the first horizontal direction. Each rear foot docking area is provided with a rear foot limiting groove for fitting into the bottom of the UAV's rear feet. Each rear foot docking area is also provided with a centering guide surface for guiding the UAV to center.

[0012] A chain drive mechanism is installed on the base and connected to the helipad drive.

[0013] The drive source, located on the base, is used to drive the chain transmission mechanism to slide the helipad along the first horizontal direction, so that the helipad can be blocked by the front or rear end of the secondary linear slide rail, thereby driving the secondary linear slide rail to slide out or back along the primary linear slide rail.

[0014] When the drive source drives the landing pad to slide back to center the UAV along the secondary linear slide rail, the locking component and the limit component fixed on the base stop the secondary linear slide rail from sliding back along the primary linear slide rail. This causes the UAV's rear footrest on the landing pad to be blocked by the centering wing. Under the guidance of the centering guide surface, the UAV's rear footrest enters the rear foot limit groove to center the UAV. At the same time, the landing pad slides to the locking component, causing the locking component to rotate and unlocking the stop between the limit component and the locking component.

[0015] Furthermore, a positioning groove is provided on the front end surface of the centering wing, and the central axis of the positioning groove in the first horizontal direction is collinear with the central axis of the rear foot limiting groove in the first horizontal direction.

[0016] Furthermore, the chain transmission mechanism includes a drive shaft, a drive sprocket, a window-opening anti-bend chain, and a chain guide assembly. The drive shaft is rotatably mounted on the base and extends along a second horizontal direction. The drive sprocket is fixed to the drive shaft, and a drive source is connected to the drive shaft to drive its rotation. The chain guide assembly is located on one side of the first-stage linear slide rail in the second horizontal direction, and the window-opening anti-bend chain is connected to the drive sprocket. The chain guide assembly has a first guide groove that passes through one end of itself near the drive sprocket. The first end of the window-opening anti-bend chain is fixedly connected to the bottom of the helipad, and the second end of the window-opening anti-bend chain is a free end. The chain core at the free end is slidably clamped by the first guide groove, allowing the free end of the window-opening anti-bend chain to slide along the first guide groove.

[0017] Furthermore, the chain guide assembly includes a first chain guide plate and a second chain guide plate, both of which are disposed on the base. Both the first chain guide plate and the second chain guide plate extend along a first horizontal direction and are vertically spaced apart. The gap between the first chain guide plate and the second chain guide plate forms the first chain guide groove.

[0018] Furthermore, the chain guide assembly is also provided with a second chain guide groove, which extends along a first horizontal direction and is located above the first chain guide groove. The end of the second chain guide groove facing away from the drive sprocket is connected to the first chain guide groove, and the part where the end of the second chain guide groove facing away from the drive sprocket is connected to the first chain guide groove is connected by a rounded transition.

[0019] Furthermore, the chain guide assembly also includes a third chain guide plate, which is disposed on the base and extends along a first horizontal direction. The third chain guide plate and the second chain guide plate are vertically spaced apart, and the gap between the third chain guide plate and the second chain guide plate forms the second chain guide groove.

[0020] Furthermore, a groove is provided on the upper surface of the secondary linear slide rail, the groove extends along the axial direction of the secondary linear slide rail, and a smooth rod extending along the axial direction of the groove is provided on the opposite side walls of the groove. A pulley is vertically provided at the bottom of the parking apron, and a groove is provided on the circumferential surface of the pulley for rolling contact with the smooth rod.

[0021] Furthermore, the base is also provided with a charging telescopic module located above the secondary linear slide rail. As the secondary linear slide rail slides back along the primary linear slide rail, it causes the charging port on the battery assembly of the drone on the landing pad to connect and charge with the charging telescopic module.

[0022] Furthermore, the charging telescopic module includes a fixed base, a sliding base, a buffer structure, and a charging terminal module. The fixed base is fixedly connected to the base. The sliding base is slidably mounted on the fixed base along the axial direction of the primary linear slide rail. One end of the buffer structure is connected to the fixed base, and the other end is connected to the sliding base, which is used to buffer the sliding of the sliding base along the axial direction of the primary linear slide rail. The charging terminal module is electrically connected to the power supply module mounted on the fixed base. The charging terminal module is located at the front end of the sliding base and is used to plug into the charging port on the battery assembly of the drone for charging.

[0023] Furthermore, a mounting base is fixed to the front end of the sliding seat. A T-shaped groove penetrating the front end face of the mounting base is formed on its upper surface along a first horizontal direction. The charging terminal module includes a movable seat and a charging terminal. The charging terminal is fixed to the movable seat, passes through the front end face of the movable seat, and its other end is electrically connected to the power supply module. The T-shaped groove includes a mounting groove and a clearance groove. One end of the movable seat is placed in the mounting groove, and the other end extends from the clearance groove, allowing the movable seat to move in a second vertical and horizontal direction. A cover plate is provided on the upper surface of the mounting base, and a space is formed between the movable seat and the cover plate. The movable seat is connected to a first elastic element. The two side walls of the movable seat in the second horizontal direction are set as first connecting walls, and the two side walls of the mounting groove in the second horizontal direction are set as second connecting walls. A second elastic element is connected between each first connecting wall and each second connecting wall. Guide parts are also provided on opposite sides of the front end of the movable seat to guide the battery assembly on the UAV into the space between the two guide parts. During the process of the guide parts guiding the battery assembly into the space between the two guide parts, the force of the battery assembly acting on the guide parts forces the movable seat to automatically compensate for the deviation between the charging terminal and the charging port in the vertical and second horizontal directions.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] When using the drawer-type UAV nest of the present invention, if it is necessary to drive the landing pad to slide out of the nest shell for UAV docking, the drive source drives the chain transmission mechanism to drive the landing pad to slide out along the secondary linear slide rail. When the landing pad slides to the front end of the secondary linear slide rail, the landing pad slides along the primary linear slide rail due to the obstruction of the front end of the secondary linear slide rail. During the process of the secondary linear slide rail sliding along the primary linear slide rail, the locking member passes over the limiting member under the elastic force of the torsion spring, so that the rear end of the locking member cooperates with the stop of the limiting member. When the UAV returns and docks on the landing pad, The drive source propels the landing pad back along the secondary linear slide rail. During the process of the drone returning to its original position along the secondary linear slide rail, the locking and limiting components work together to prevent the secondary linear slide rail from sliding back along the primary linear slide rail. Therefore, when the drone's rear landing gear is blocked by the centering wing on the landing pad, the drone's rear landing gear, guided by the centering guide surface, enters the rear landing gear limiting groove to center the drone. Simultaneously, the landing pad slides to the point where the locking component rotates, unlocking the limiting and locking components, allowing the secondary linear slide rail to slide back into the housing along the primary linear slide rail under the drive of the landing pad. In summary, the drawer-type drone housing of this invention overcomes the technical deficiency of existing drone housings that cannot use a single drive source to achieve the extension and retraction of the landing pad and the centering of the drone. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the core structure of the drone's internal structure in the embodiment;

[0027] Figure 2 for Figure 2 Another structural diagram from a different angle;

[0028] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0029] Figure 4 for Figure 1 Top view;

[0030] Figure 5 This is a schematic diagram of the structure of the drone nest involved in the embodiment. Figure 1 ;

[0031] Figure 6 This is a schematic diagram of the structure of the drone nest involved in the embodiment. Figure 2 ;

[0032] Figure 7 This is a schematic diagram of the mechanism in the embodiment with the landing pad removed;

[0033] Figure 8 This is a schematic diagram illustrating the connection between the drive source, chain guide assembly, and base in the embodiment.

[0034] Figure 9 This is a schematic diagram of the structure of the two-stage linear slide rail involved in the embodiment;

[0035] Figure 10 This is a schematic diagram of the structure of the helipad involved in the embodiment;

[0036] Figure 11 This is a schematic diagram of the charging telescopic module involved in the embodiment;

[0037] Figure 12 for Figure 11 Another structural diagram from a different angle;

[0038] Figure 13 This is a schematic diagram of the mounting base involved in the embodiment;

[0039] Figure 14 This is a schematic diagram illustrating the connection between the mounting base and the charging terminal module in the embodiment.

[0040] Figure 15 This is a schematic diagram of the charging terminal module involved in the embodiment;

[0041] Figure 16 This is a schematic diagram of the structure of the drone involved in the embodiment.

[0042] Numbering in each attached figure:

[0043] 1. Base; 10. Limiting component; 2. Primary linear slide rail; 3. Secondary linear slide rail; 30. Slide groove; 301. Smooth rod; 31. Front limiting part; 32. Rear limiting part; 33. Centering wing; 330. Positioning groove; 34. Passive sprocket; 4. Locking component; 5. Parking apron; 50. Front foot docking area; 51. Rear foot docking area; 510. Rear foot limiting groove; 511. Stop groove; 512. Centering guide surface; 512 1. Guide ramp; 513. Edge guard strip; 52. Pulley; 520. Groove; 6. Chain drive mechanism; 60. Drive shaft; 61. Drive sprocket; 62. Window push-window anti-bending chain; 63. Chain guide assembly; 630. First chain guide plate; 631. Second chain guide plate; 632. Third chain guide plate; 633. First chain guide groove; 634. Second chain guide groove; 7. Drive source; 8. Housing; 9. Charging Telescopic module; 90, Fixed base; 901, Power supply module; 91, Sliding base; 910, Proximity switch; 92, First spring; 93, Second spring; 94, Charging terminal module; 940, Movable base; 9401, First spring mounting hole; 9402, First spring guide post; 9403, First connecting wall; 9404, Second spring mounting hole; 9405, Second spring guide post; 9406, Waist-shaped groove; 941, Charging... Terminal; 942, guide section; 9421, guide body; 9422, inclined guide surface; 9423, straight guide groove; 9424, guide opening; 95, mounting base; 950, mounting groove; 9501, second connecting wall; 9502, third spring guide post; 951, clearance groove; 9511, curved wall surface; 952, cover plate; 96, UAV; 961, rear tripod; 962, front tripod; 963, battery assembly. Detailed Implementation

[0044] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0045] In the description of this invention, it should be understood that the terms "width", "upper", "lower", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] Please refer to Figure 1 - Figure 15 The present invention provides a drawer-type drone nest.

[0049] Reference Figure 1 and Figure 5 The drawer-type UAV nest includes a core and a shell 8. The core includes a base 1, a primary linear slide rail 2, a secondary linear slide rail 3, a locking element 4, a landing pad 5, a chain drive mechanism 6, and a drive source 7. The primary linear slide rail 2 is fixed to the base 1. The axis of the primary linear slide rail 2 is a horizontal first direction, and the horizontal direction perpendicular to the horizontal first direction is designated as a horizontal second direction. The secondary linear slide rail 3 is slidably mounted on the primary linear slide rail 2 along the horizontal first direction. The two outer side walls of the secondary linear slide rail 3 along the horizontal second direction are provided with centering wings 33, which extend along the horizontal second direction.

[0050] Reference Figure 1 - Figure 3 The locking element 4 is rotatably mounted on at least one outer wall of the secondary linear slide rail 3 via a rotating shaft (not shown). The locking element 4 is located behind the centering wing 33. A torsion spring (not shown) is sleeved on the rotating shaft. The torsion spring (not shown) is located between the locking element 4 and the secondary linear slide rail 3, and the opposite ends of the locking element 4 are respectively connected to the secondary linear slide rail 3 and the locking element 4.

[0051] Reference Figure 1 , Figure 4 and Figure 16The landing pad 5 is slidably mounted on the secondary linear slide rail 3 along the first horizontal direction. The landing pad 5 can slide under the centering wing 33 along the first horizontal direction. The upper surface of the landing pad 5 includes front foot docking areas 50 for docking two front feet 962 of the UAV 96 and two rear foot docking areas 51 for docking two rear feet 961 of the UAV 96. The two rear foot docking areas 51 are symmetrical about the central axis of the landing pad 5 in the first horizontal direction. Each rear foot docking area 51 is provided with a rear foot limiting groove 510 for fitting with the bottom of the rear feet 961 of the UAV 96. Each rear foot docking area 51 is also provided with a centering guide surface 512 for guiding the UAV 96 to center. The centering guide surface 512 includes two guide slopes 5121. The two guide slopes 5121 are symmetrical about the central axis of the rear foot limiting grooves 510 in the first horizontal direction. The chain drive mechanism 6 is mounted on the base 1, and the chain of the chain drive mechanism 6 is connected to the helipad 5. The drive source 7 is fixed on the base 1 and is used to drive the chain drive mechanism 6 to slide the helipad 5 along the first horizontal direction, so that the helipad 5 can be blocked by the front or rear end of the secondary linear slide rail 3, thereby driving the secondary linear slide rail 3 to slide out or back along the primary linear slide rail 2.

[0052] Among them, the limiting member 10 is a cylindrical structure that extends along the second horizontal direction. During the process of the UAV 96 sliding back along the secondary linear slide rail 3 on the landing pad 5, the locking member 4 and the limiting member 10 fixed on the base 1 stop each other to prevent the secondary linear slide rail 3 from sliding back along the primary linear slide rail 2. This causes the rear footrest 961 of the UAV 96 on the landing pad 5 to be blocked by the centering wing 33. This allows the rear footrest 961 of the UAV 96 to enter the rear foot limiting groove 510 under the guidance of the centering guide surface 512, thus centering the UAV 96. At the same time, the landing pad 5 slides to the locking member 4, causing the locking member 4 to rotate and unlock the stopping of the limiting member 10 and the locking member 4.

[0053] In summary, when the drawer-type UAV nest of the present invention is in use, if it is necessary to drive the landing pad 5 to slide out of the nest shell 8 for the UAV 96 to dock, the drive source 7 drives the chain transmission mechanism 6 to drive the landing pad 5 to slide out along the secondary linear slide rail 3. When the landing pad 5 slides to the front end of the secondary linear slide rail 3, the landing pad 5 slides out along the primary linear slide rail 2 due to the obstruction of the front end of the secondary linear slide rail 3. During the process of the secondary linear slide rail 3 sliding out along the primary linear slide rail 2, the locking member 4 passes over the limiting member 10 under the elastic force of the torsion spring, so that the rear end of the locking member 4 is engaged with the limiting member 10. When the UAV 96 returns and docks on the landing pad 5, the drive source 7 drives... The helipad 5 slides back along the secondary linear slide rail 3. During the process of the UAV 96 sliding back along the secondary linear slide rail 3 on the helipad 5, the locking part 4 and the limiting part 10 stop each other, preventing the secondary linear slide rail 3 from sliding back along the primary linear slide rail 2. Therefore, when the rear footrest 961 of the UAV 96 on the helipad 5 is blocked by the centering wing 33, the rear footrest 961 of the UAV 96 enters the rear foot limiting groove 510 under the guidance of the centering guide surface 512 to center the UAV 96. At the same time, the helipad 5 also slides to the locking part 4, which drives the locking part 4 to rotate, unlocking the stopping of the limiting part 10 and the locking part 4, so that the secondary linear slide rail 3 slides back into the housing 8 along the primary linear slide rail 2 under the drive of the helipad 5. Therefore, it can be seen that the drawer-type UAV 96 nest of the present invention uses the same drive source 7 to realize the extension and retraction of the landing pad 5 and the centering of the UAV 96, overcoming the technical defect that the existing UAV 96 nest cannot use the same drive source 7 to realize the extension and retraction of the landing pad 5 and the centering of the UAV 96.

[0054] It should be noted that during the process of the helipad 5 sliding back along the first horizontal direction, when the helipad 5 slides to the point where the locking member 4 drives the locking member 4 to rotate, unlocking the stop of the limit member 10 and the locking member 4 ( Figure 5 The locking element 4 shown is in the locked state. Figure 6 (The locking element 4 shown is in the unlocked state). The rear end of the landing pad 5 is exactly in contact with the rear limit part 32 on the secondary linear slide rail 3. Under the obstruction of the rear limit part 32 and the driving action of the drive source 7, the landing pad 5 drives the secondary linear slide rail 3 to slide back along the primary linear slide rail 2.

[0055] Reference Figure 1 and Figure 8The chain drive mechanism 6 includes a drive shaft 60, a drive sprocket 61, a window-opening anti-bend chain 62, and a chain guide assembly 63. The drive shaft 60 is rotatably mounted on the base 1 via bearings and extends along a second horizontal direction. The drive sprocket 61 is fixed to the drive shaft 60. The drive source 7 is a drive motor, which is connected to the drive shaft 60 to drive the drive shaft 60 to rotate. The chain guide assembly 63 is located on one side of the first-stage linear slide rail 2 in the second horizontal direction. The window-opening anti-bend chain 62 is connected to the drive sprocket 61. The chain guide assembly 63 is provided with a first chain guide groove 633 that passes through one end of itself near the drive sprocket 61. The first end of the window-opening anti-bend chain 62 is connected and fixed to the bottom of the helipad 5. The second end of the window-opening anti-bend chain 62 is a free end. The chain core of the free end is slidably clamped by the first chain guide groove 633, so that the free end of the window-opening anti-bend chain 62 can slide along the first chain guide groove 633. Therefore, it can be understood that the drive unit drives the transmission shaft 60 to rotate, which drives the window anti-bending chain 62 to drive, thereby causing the helipad 5 to slide along the first horizontal direction. The free end of the window anti-bending chain 62 slides along the first guide groove 633 of the chain and will not detach from the first guide groove 633 of the chain.

[0056] In addition, the chain guide assembly 63 is also provided with a second chain guide groove 634. The second chain guide groove 634 extends along the first horizontal direction and is located above the first chain guide groove 633. The end of the second chain guide groove 634 facing away from the drive sprocket 61 is connected to the first chain guide groove 633. The part of the second chain guide groove 634 facing away from the drive sprocket 61 that is connected to the first chain guide groove 633 is connected by a rounded transition. Specifically, it can be understood that as the drive motor rotates forward, it drives the window-pushing anti-bending chain 62 to drive the helipad 5 to slide from the rear limit part 32 of the secondary linear slide rail 3 to the front limit part 31 of the secondary linear slide rail 3. During this process, the free end of the window-pushing anti-bending chain 62 slides along the second guide groove 634 of the chain. After the helipad 5 contacts the front limit part 31, the helipad 5 continues to be driven by the drive motor to drive the secondary linear slide rail 3 to slide along the primary linear slide rail 2. During this process, the free end of the window-pushing anti-bending chain 62 slides from the second guide groove 634 of the chain to the first guide groove 633 of the chain, but it will never leave the first guide groove 633 of the chain. Similarly, when the drive motor reverses, it drives the window-pushing anti-bending chain 62 to slide the landing pad 5 from the front limit part 31 to the rear limit part 32 of the secondary linear slide rail 3. During this process, the free end of the window-pushing anti-bending chain 62 slides along the first guide groove 633 of the chain. After the landing pad 5 contacts the rear limit part 32, the landing pad 5 continues to be driven by the drive motor to drive the secondary linear slide rail 3 to slide back along the primary linear slide rail 2. During this process, the free end of the window-pushing anti-bending chain 62 slides from the first guide groove 633 of the chain to the second guide groove 634 of the chain. In summary, by setting the second guide groove 634 of the chain, the length of the first guide groove 633 of the chain in the first horizontal direction can be reduced, thereby reducing the overall size of the UAV 96 nest.

[0057] It should be noted that the chain drive mechanism 6 described above can realize the multi-stage extension and retraction of the helipad 5. If the helipad 5 needs to be extended and retracted in three stages, a third-stage linear slide rail can be set on the second-stage linear slide rail 3 along the first horizontal direction, and the helipad 5 can be slidably set on the third-stage linear slide rail along the first horizontal direction. Correspondingly, a third guide groove of the chain is set above the second guide groove 634 of the chain. The principle of realizing the three-stage extension and retraction of the helipad 5 is the same as the principle of realizing the two-stage extension and retraction of the helipad 5, and will not be elaborated here.

[0058] Reference Figure 8The chain guide assembly 63 includes a first chain guide plate 630, a second chain guide plate 631, and a third chain guide plate 632. These three plates are mounted on a base 1 and are detachably connected to the base 1 via screws. The first and second chain guide plates extend horizontally in a first direction and are vertically spaced apart, with the spacing between them forming the first chain guide groove 633. The third chain guide plate 632 extends horizontally in a first direction and is vertically spaced apart from the second chain guide plate 631, with the spacing between them forming the second chain guide groove 634. In addition, the third guide plate 632 of the chain is integrally connected with the first guide plate 630 of the chain, and the second guide plate 631 of the chain is located between the third guide plate 632 of the chain and the first guide plate 630 of the chain. In this way, by adjusting the height of the first guide plate 630 or the second guide plate 631 of the chain, the size of the first guide groove 633 and the second guide groove 634 of the chain can be adjusted to adapt to the different sizes of the push-window anti-bending chain 62.

[0059] Reference Figure 1 or Figure 2 Both ends of the drive shaft 60 are equipped with drive sprockets 61, and each drive sprocket 61 is connected to a window-opening anti-bend chain 62. The two window-opening anti-bend chains 62 are located on opposite sides of the first-stage linear slide rail 2 in the second horizontal direction. Two sets of chain guide assemblies 63 are also provided, located on opposite sides of the first-stage linear slide rail 2 in the second horizontal direction. The chain core at the free end of each window-opening anti-bend chain 62 is slidably clamped by the first guide groove 633 on each chain guide assembly 63. Therefore, with two drive sprockets 61, two window-opening anti-bend chains 62, and two sets of chain guide assemblies 63, the chain transmission mechanism 6 drives the helipad 5 to extend and retract in the first horizontal direction more smoothly and with better stability.

[0060] Reference Figure 1 The secondary linear slide rail 3 is rotatably equipped with passive sprockets 34 on both sides of the horizontal first direction. The rotation axis of the passive sprockets 34 is parallel to the rotation axis of the transmission shaft 60. Each window anti-bending chain 62 is also connected to each passive sprocket 34, thereby improving the transmission performance of the window anti-bending chain 62.

[0061] Reference 1. Figure 4 , Figure 9 and Figure 10The upper surface of the secondary linear slide rail 3 is provided with a groove 30, which extends axially along the secondary linear slide rail 3. On opposite side walls within the groove 30, there are smooth rods 301 extending axially along the groove 30. A pulley 52 is vertically fixed at the bottom of the helipad 5. The circumferential surface of the pulley 52 has a groove 520 that rolls in contact with the smooth rods 301. This reduces the friction between the helipad 5 and the secondary linear slide rail 3, allowing the helipad 5 to slide more smoothly along the secondary linear slide rail 3.

[0062] In addition, the structure of the first-level linear slide rail 2 and the second-level linear slide rail 3 is the same. That is, the sliding structure between the first-level linear slide rail 2 and the second-level linear slide rail 3 adopts the sliding structure between the helipad 5 and the second-level linear slide rail 3, which will not be described in detail here.

[0063] Limiting seats are provided at both ends of the primary linear slide rail 2. During the sliding process of the secondary linear slide rail 3 along the primary linear slide rail 2, the limiting seats can prevent the secondary linear slide rail 3 from detaching from the primary linear slide rail 2.

[0064] Reference Figure 1 , Figure 4 and Figure 16 The centering wing 33 has a positioning groove 330 on its front surface. The central axis of the positioning groove 330 in the first horizontal direction is collinear with the central axis of the rear foot limiting groove 510 in the first horizontal direction. After the UAV 96 is centered, the rear side of the rear footrest 961 of the UAV 96 is located in the positioning groove 330 and engages with the stop of the positioning groove 330. The bottom front end of the rear footrest 961 of the UAV 96 engages with the stop of the rear foot limiting groove 510, so that the UAV 96 is clamped and fixed on the landing pad 5. The use of the positioning groove 330 and the rear foot limiting groove 510 can make the stability of the UAV 96 fixed on the landing pad 5 better.

[0065] Reference Figure 4 The front end face of the centering wing 33 has a certain degree of inclination. The inclination of the front end face of the centering wing 33 is divided into two segments. In the same centering wing 33, the two segments of inclination are symmetrical about the central axis of the positioning groove 330 in the first horizontal direction. The inclination of the front end face of the centering wing 33 is mainly used to assist the UAV 96 in centering.

[0066] Based on the above structure, referring to Figure 1 , Figure 11 , Figure 12The base 1 also features a charging telescopic module 9 located above the secondary linear slide rail 3. As the secondary linear slide rail 3 slides and retracts along the primary linear slide rail 2, it causes the charging port (not shown) on the battery assembly 963 of the drone 96 on the landing pad 5 to connect to the charging telescopic module 9 for charging. Therefore, the entire drone nest only requires a single drive source 7 to achieve the technical effects of centering the drone 96, extending and retracting the landing pad 5, and charging the drone 96, thus optimizing the space utilization within the casing 8.

[0067] Reference Figure 1 , Figure 11 and Figure 12 The charging telescopic module 9 includes a fixed base 90, a sliding base 91, a buffer structure, and a charging terminal module 94. The fixed base 90 is fixedly connected to the base 1, and the sliding base 91 is slidably mounted on the fixed base 90 along a first horizontal direction. One end of the buffer structure is connected to the fixed base 90, and the other end is connected to the sliding base 91, used to buffer the sliding of the sliding base 91 along the axial direction of the first-stage linear slide rail 2. The charging terminal module 94 is electrically connected to the power supply module 901 mounted on the fixed base 90. The charging terminal module 94 is located at the front end of the sliding base 91 and is used to connect to the charging port on the battery assembly 963 of the drone 96 for charging. The buffer structure can prevent the charging terminal module 94 from making hard contact with the charging port of the drone 96.

[0068] Reference Figure 11 - Figure 15The front end of the sliding seat 91 is fixed with a mounting seat 95. The upper surface of the mounting seat 95 is provided with a T-shaped groove that passes through its front end along the first horizontal direction. The charging terminal module 94 includes a movable seat 940 and a charging terminal 941. The charging terminal 941 is fixed on the movable seat 940 and passes through the front end of the movable seat 940. The other end is electrically connected to the power supply module 901. The T-shaped groove includes a mounting groove 950 and a clearance groove 951. One end of the movable seat 940 is placed in the mounting groove 950, and the other end extends out from the clearance groove 951, so that the movable seat 940 can move in the second vertical and horizontal directions. A cover plate 952 is provided on the upper surface of the mounting base 95. A first elastic element is connected between the movable base 940 and the cover plate 952. The two side walls of the movable base 940 in the second horizontal direction are designated as first connecting walls 9403. The two side walls of the mounting groove 950 in the second horizontal direction are designated as second connecting walls 9501. A second elastic element is connected between each first connecting wall 9403 and each second connecting wall 9501. Guide portions 942 are also provided on the front end of the movable base 940 on opposite sides to guide the battery assembly 963 on the drone 96 into the space between the two guide portions 942. During the process of the guide portions 942 guiding the battery assembly 963 of the drone 96 into the space between the two guide portions 942, the force exerted by the battery assembly 963 of the drone 96 on the guide portions 942 forces the movable base 940 to automatically compensate for the deviation between the charging terminal 941 and the charging port in the vertical and second horizontal directions.Specifically, it can be understood that when the charging telescopic module 9 charges the drone 96, it supplies power to the charging terminal 941 through the power supply module 901. Since one end of the movable seat 940 is placed in the T-shaped groove of the mounting base 95, and the other end extends out of the T-shaped groove of the mounting base 95 along the first horizontal direction, and the movable seat 940 can move in the second vertical and horizontal directions, the first elastic element connecting the movable seat 940 and the cover plate 952, and the second elastic element connecting each first connecting wall 9403 on the movable seat 940 and each second connecting wall 9501 in the mounting groove 950, allow the movable seat 940 to move elastically in the second vertical and horizontal directions. Furthermore, since the movable seat 940 is fixed on the sliding seat 91, the sliding of the sliding seat 91 in the first horizontal direction is buffered by the buffer structure. The movable seat 940 can move elastically in the vertical, horizontal first, and horizontal second directions. When the battery assembly 963 of the drone 96 enters between the two guide portions 942 at the front end of the movable seat 940 along the first direction, the buffer structure is elastically compressed. The force exerted by the drone 96 on the guide portions 942 forces the movable seat 940 to automatically compensate for the deviation between the charging terminal 941 and the charging port of the drone 96 in the vertical and horizontal second directions. This allows the charging terminal 941 on the charging terminal module 94 to automatically align with the charging port of the drone 96. Simultaneously, under the elastic force of the buffer structure, the movable seat 940 slides forward along the horizontal first direction, allowing the charging terminal 941 on the movable seat 940 to accurately insert into the charging port of the drone 96, thus charging the drone 96. Therefore, the charging telescopic module 9 involved in this embodiment can automatically compensate for the deviation between the charging terminal 941 and the charging port of the drone 96 in the vertical and horizontal second directions, thereby enabling the charging terminal 941 to accurately insert into the charging port of the drone 96, greatly improving the charging efficiency of the drone 96.

[0069] Of course, the charging port (not shown) of the drone 96 parked on the landing pad 5 is horizontal with the charging terminal 941 on the charging terminal module 94. The charging port on the drone 96 is located at the rear end of the drone 96. The central axis of the charging port on the drone 96 in the first horizontal direction is theoretically coaxial with the central axis of the end of the charging terminal 941 used to insert the charging port of the drone 96 in the first horizontal direction.

[0070] When the charging terminal 941 is plugged into the charging port on the drone 96 to charge the drone 96, if the drive source 7 drives the chain transmission mechanism 6 to slide the landing pad 5 along the secondary linear slide rail 3, the clamping force between the charging terminal 941 and the charging port of the drone 96 may cause the drone 96 on the landing pad 5 to slide backward and detach from the landing pad 5. Therefore, each rear foot resting area 51 of the landing pad 5 is also provided with a stop groove 511, and each stop groove 511 is coaxial with each rear foot limiting groove 510. Thus, when the drive source 7 drives the chain transmission mechanism 6 to slide the landing pad 5 along the secondary linear slide rail 3, the bottom of the rear foot 961 of the drone 96 slides into the stop groove 511 along the first horizontal direction. Under the limiting action of the stop groove 511, the drone 96 slides forward along the secondary linear slide rail 3 with the landing pad 5.

[0071] Additionally, refer to Figure 1 The left and right edges of the rear foot docking area 51 are fixed with edge guards 513, which can prevent the drone 96 from falling off from the left and right sides of the rear foot docking area 51.

[0072] Reference Figure 11 and Figure 12 The guide section 942 includes a guide body 9421, which is integrally connected to the movable seat 940. One end face of the guide body 9421 facing away from the sliding seat 91 is configured as an inclined guide surface 9422. The two inclined guide surfaces 9422 form a V-shape, facilitating the guidance of the battery assembly 963 on the drone 96 into the space between the two guide bodies 9421. Since the movable seat 940 can move elastically in both the first and second horizontal directions, when the two side walls of the battery assembly 963 on the drone 96 contact the two inclined guide surfaces 9422 in the second horizontal direction, as the drone 96 continues to move backward along the first direction, the two inclined guide surfaces 9422 can automatically compensate for the deviation between the charging terminal 941 on the movable seat 940 and the charging port of the drone 96 in the second horizontal direction.

[0073] In addition, refer to Figure 11 or Figure 12The opposing sides of the two guide bodies 9421 are set as working surfaces. Two fixing strips are set on the working surfaces of the guide bodies 9421. The fixing strips extend along the first horizontal direction, and the two fixing strips on the guide bodies 9421 are set at intervals along the vertical direction. The gap between the two fixing strips on the guide bodies 9421 forms a straight guide groove 9423. The port of the straight guide groove 9423 facing away from the sliding seat 91 is set as a guide opening 9424. The guide opening 9424 has an eight-shaped structure, which facilitates the sliding part (not shown) on the battery assembly 963 of the UAV 96 to enter the straight guide groove 9423. Of course, the sliding part on the battery assembly 963 of the drone 96 extends along the first horizontal direction, and the sliding parts on the opposite side walls of the battery assembly 963 of the drone 96 in the second horizontal direction are respectively adapted to slide with the two straight guide grooves 9423. When the sliding part on the battery assembly 963 of the drone 96 contacts the guide port 9424, since the movable seat 940 can move elastically in the vertical direction, as the drone 96 continues to move backward along the first direction, the guide port 9424 can automatically compensate for the vertical deviation between the charging terminal 941 on the movable seat 940 and the charging port of the drone 96.

[0074] Reference Figure 11 The buffer structure includes a first spring 92 and a second spring 93. One end of the first spring 92 is fixedly connected to the mounting base 95, and the other end is fixedly connected to the sliding base 91. The first spring 92 extends along a first horizontal direction. One end of the second spring 93 is fixedly connected to the mounting base 95, and the other end is fixedly connected to the sliding base 91. The second spring 93 and the first spring 92 are symmetrical about the central axis of the sliding base 91 in the first horizontal direction. This buffer structure is beneficial for buffering the sliding of the sliding base 91 in the first horizontal direction.

[0075] Reference Figure 11 The sliding base 91 is also equipped with a proximity switch 910 that is electrically connected to the power supply module 901. The proximity switch 910 is used to identify whether there is a drone 96 charging at the charging terminal 941, which is helpful to know in real time whether there is a drone 96 charging.

[0076] Reference Figure 11 - Figure 15The clearance groove 951 has two opposite side walls in the second horizontal direction that are set as arc-shaped walls 9511, and the movable seat 940 has waist-shaped grooves 9406 on its opposite side walls in the second horizontal direction. Of course, the waist-shaped grooves 9406 extend along the second horizontal direction, and the distance between the upper surface of the movable seat 940 and the cover plate 952 forms the space for the movable seat 940 to move vertically. The distance between the end face of the waist-shaped groove 9406 in the second horizontal direction and the arc-shaped wall 9511 forms the space for the movable seat 940 to move along the second horizontal direction. Specifically, one end of the movable seat 940 is placed inside the mounting groove 950. The height of the upper surface of the movable seat 940 is less than the depth of the T-shaped groove. The rear end face of the movable seat 940 in the first horizontal direction slides and fits against the rear end face inside the mounting groove 950. The wall surface of the waist-shaped groove 9406 on the movable seat 940 in the first horizontal direction slides and fits against the movable seat 940. A gap is reserved between the wall surface of the waist-shaped groove 9406 in the second horizontal direction and the arc-shaped wall surface 9511. This allows the movable seat 940 to move in both the vertical and second horizontal directions. The first elastic element connecting the movable seat 940 and the cover plate 952 is mainly used for the reset of the movable seat 940 in the vertical direction. Similarly, the second elastic element is mainly used for the reset of the movable seat 940 in the second horizontal direction.

[0077] Reference Figure 13 - Figure 15 The first elastic element is a first return spring. There are two sets of first return springs, which are symmetrical about the central axis of the movable seat 940 in the horizontal first direction. This facilitates the vertical reset of the movable seat 940. To facilitate the installation of the first elastic element, multiple first spring mounting holes 9401 are provided on the upper surface of the movable seat 940. Each of the multiple first spring mounting holes 9401 corresponds to a multiple first return spring. A vertically extending first spring guide post 9402 is provided in the first spring mounting hole 9401. One end of the first return spring is fitted onto the first spring guide post 9402, and the other end abuts against the bottom wall of the cover plate 952. Similarly, the second elastic element is a second return spring. A second spring mounting hole 9404 is provided on the first connecting wall 9403. A second spring guide post 9405 coaxial with the second spring mounting hole 9404 is provided in the second spring mounting hole 9404. A third spring guide post 9502 is provided on the second connecting wall 9501. Each third spring guide post 9502 is coaxial with each second spring guide post 9405 and corresponds to it one by one. One end of each second return spring is sleeved on each third spring guide post 9502, and the other end of each second return spring is sleeved on each second spring guide post 9405. This facilitates the installation of the second elastic element.

[0078] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drawer-type drone nest, characterized in that, include: base; A primary linear slide rail is fixed to the base. The axis of the primary linear slide rail is the first horizontal direction, and the horizontal direction perpendicular to the first horizontal direction is designated as the second horizontal direction. The secondary linear slide rail is slidably mounted on the primary linear slide rail along the first horizontal direction, and centering wings are provided on both outer side walls of the secondary linear slide rail along the second horizontal direction. A locking element is rotatably mounted on at least one outer wall of the secondary linear slide rail via a rotating shaft. The locking element is located behind the centering wing. A torsion spring is sleeved on the rotating shaft. The torsion spring is located between the locking element and the secondary linear slide rail, and the opposite ends of the torsion spring are respectively connected to the secondary linear slide rail and the locking element. The landing pad is slidably set on a secondary linear slide rail along the first horizontal direction. The landing pad can slide under the centering wing along the first horizontal direction. The upper surface of the landing pad includes front foot docking areas for the two front feet of the UAV and two rear foot docking areas for the two rear feet of the UAV. The two rear foot docking areas are symmetrical about the central axis of the landing pad in the first horizontal direction. Each rear foot docking area is provided with a rear foot limiting groove for fitting into the bottom of the UAV's rear feet. Each rear foot docking area is also provided with a centering guide surface for guiding the UAV to center. A chain drive mechanism is installed on the base and connected to the helipad drive. A drive source, mounted on the base, is used to drive the chain transmission mechanism to move the helipad along the secondary linear slide rail. The helipad can be blocked by the front or rear end of the secondary linear slide rail, so that the secondary linear slide rail can slide out or slide back along the primary linear slide rail. When the drive source drives the landing pad to slide back to center the UAV along the secondary linear slide rail, the locking component and the limit component fixed on the base stop the secondary linear slide rail from sliding back along the primary linear slide rail. This causes the UAV's rear footrest on the landing pad to be blocked by the centering wing. Under the guidance of the centering guide surface, the UAV's rear footrest enters the rear foot limit groove to center the UAV. At the same time, the landing pad slides to the locking component, causing the locking component to rotate and unlocking the stop between the limit component and the locking component.

2. The drawer-type UAV nest according to claim 1, characterized in that, A positioning groove is provided on the front end surface of the centering wing, and the central axis of the positioning groove in the first horizontal direction is collinear with the central axis of the rear foot limiting groove in the first horizontal direction.

3. The drawer-type UAV nest according to claim 1, characterized in that, The chain drive mechanism includes a drive shaft, a drive sprocket, a window-opening anti-bend chain, and a chain guide assembly. The drive shaft is rotatably mounted on the base and extends along a second horizontal direction. The drive sprocket is fixed to the drive shaft, and a drive source is connected to the drive shaft to drive its rotation. The chain guide assembly is located on one side of the first-stage linear slide rail in the second horizontal direction, and the window-opening anti-bend chain is connected to the drive sprocket. The chain guide assembly has a first guide groove that passes through one end of itself near the drive sprocket. The first end of the window-opening anti-bend chain is fixedly connected to the bottom of the helipad, and the second end of the window-opening anti-bend chain is a free end. The chain core at the free end is slidably clamped by the first guide groove, allowing the free end of the window-opening anti-bend chain to slide along the first guide groove.

4. The drawer-type UAV nest according to claim 3, characterized in that, The chain guide assembly includes a first chain guide plate and a second chain guide plate, both of which are disposed on a base. Both the first chain guide plate and the second chain guide plate extend along a first horizontal direction and are vertically spaced apart. The gap between the first chain guide plate and the second chain guide plate forms the first chain guide groove.

5. The drawer-type UAV nest according to claim 4, characterized in that, The chain guide assembly is further provided with a second chain guide groove, which extends along a first horizontal direction and is located above the first chain guide groove. The end of the second chain guide groove facing away from the drive sprocket is connected to the first chain guide groove, and the part where the end of the second chain guide groove facing away from the drive sprocket is connected to the first chain guide groove is connected by a rounded transition.

6. The drawer-type UAV nest according to claim 5, characterized in that, The chain guide assembly also includes a third chain guide plate, which is disposed on the base and extends along a first horizontal direction. The third chain guide plate and the second chain guide plate are vertically spaced apart, and the gap between the third chain guide plate and the second chain guide plate forms the second chain guide groove.

7. The drawer-type UAV nest according to claim 1, characterized in that, The upper surface of the secondary linear slide rail is provided with a slide groove, which extends along the axial direction of the secondary linear slide rail. On the opposite side walls of the slide groove, there are smooth rods extending along the axial direction of the slide groove. The bottom of the parking apron is provided with a pulley, and the circumferential surface of the pulley is provided with a groove for rolling contact with the smooth rod.

8. The drawer-type UAV nest according to claim 1, characterized in that, The base is also equipped with a charging telescopic module located above the secondary linear slide rail. As the secondary linear slide rail slides and retracts along the primary linear slide rail, it causes the charging port on the battery assembly of the drone on the landing pad to connect to the charging telescopic module for charging.

9. The drawer-type UAV nest according to claim 8, characterized in that, The charging telescopic module includes a fixed base, a sliding base, a buffer structure, and a charging terminal module. The fixed base is fixedly connected to the base. The sliding base is slidably mounted on the fixed base along the axial direction of the primary linear slide rail. One end of the buffer structure is connected to the fixed base, and the other end is connected to the sliding base, which is used to buffer the sliding of the sliding base along the axial direction of the primary linear slide rail. The charging terminal module is electrically connected to the power supply module mounted on the fixed base. The charging terminal module is located at the front end of the sliding base and is used to plug into the charging port on the battery assembly of the drone for charging.

10. The drawer-type UAV nest according to claim 9, characterized in that, The sliding seat has a mounting base fixed to its front end. A T-shaped groove extending through its front end is formed on the upper surface of the mounting base along a first horizontal direction. The charging terminal module includes a movable seat and a charging terminal. The charging terminal is fixed to the movable seat, passes through the front end of the movable seat, and its other end is electrically connected to the power supply module. The T-shaped groove includes a mounting groove and a clearance groove. One end of the movable seat is placed in the mounting groove, and the other end extends from the clearance groove, allowing the movable seat to move in a second vertical and horizontal direction. A cover plate is provided on the upper surface of the mounting base, and the movable seat is connected to the cover plate. The movable seat has a first elastic element, and the two side walls of the movable seat in the second horizontal direction are set as first connecting walls. The two side walls of the mounting groove in the second horizontal direction are set as second connecting walls. A second elastic element is connected between each first connecting wall and each second connecting wall. A guide part is also provided on the front end of the movable seat on opposite sides for guiding the battery component on the UAV into the space between the two guide parts. During the process of the guide part guiding the battery component into the space between the two guide parts, the force of the battery component acting on the guide part forces the movable seat to automatically compensate for the deviation between the charging terminal and the charging port in the vertical and second horizontal directions.

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