Charging platform for inspection drones

Abstract

Comprehensive charging platform for inspection drones, a carrier (1) inside which a lifting platform (2) is installed, which serves for launching and loading the drones; a protective unit (3) comprising a turntable (31) attached to the base of the lifting platform (2), a push rod (32) cooperating with the turntable (31), a connecting rod (33) attached to one end of the push rod (32), a rotary shaft (34) articulated to an end of the connecting rod (33) remote from the push rod (32), a connecting rod (35) rotating synchronously with the rotary shaft (34), and a side panel (36) articulated to the lifting platform (2); A limiting unit (4) comprising a cam element (41) which tilts synchronously with the rotating shaft (34), a sliding bushing (42) which is mounted outside one end of the cam element (41), a mounting seat (43) arranged on the bottom of the lifting platform (2), a limiting plate (44) which tilts about an axis of the through-hole of the mounting seat (43), and an elastic element (45) for driving the return of the limiting plate (44); The rotation of the turntable (31) synchronously drives the tilting of the rotating shaft (34), and the rotating shaft (34) further drives the limiting plate (44) against the side wall of the drone, so that the drone is held in a clamping position.

Description

TECHNICAL AREA

[0001] The present invention relates to a charging platform, in particular a charging platform for inspection drones. STATE OF THE ART

[0002] In recent years, China's photovoltaic industry has developed rapidly under political support and technological iteration, and the scale of power plant installations has steadily increased; however, photovoltaic components are exposed to the outdoors long-term, which can lead to a reduction in power generation efficiency due to disadvantages such as dust accumulation, hotspots, blooming, and the like, which in extreme cases can cause fires; conventional manual inspection, due to the remote location of the power plant and the large area, presents problems with low efficiency, high costs, and high leakage rates.

[0003] To reduce the inconvenience of manual inspection, the prior art uses a joint inspection model involving an "unmanned vehicle and a drone." The unmanned vehicle on the ground transports the drone to a predetermined location, and the drone performs HD recording and infrared detection of the components. Due to the complexity of the terrain in the photovoltaic plant, jolts and accelerations during the unmanned vehicle's journey can generate significant external forces, and under strong vibrations, there is a risk of drones falling, as they are only secured by simple locking mechanisms. CONTENT OF THE PRESENT INVENTION

[0004] Therefore, the technical problem that the present invention is intended to solve is that during the movement of the existing unmanned vehicle with a drone, there is a risk that the drone will fall due to vibrations.

[0005] The technical problem is solved by the following technical solutions: the present invention provides a loading platform for inspection drones, comprising a carrier in the interior of which a lifting platform is installed for launching and loading the drones; a protective unit comprising a turntable mounted on the floor of the lifting platform, a push rod interacting with the turntable, a articulated rod attached to one end of the push rod, a rotary shaft articulated to one end of the articulated rod away from the push rod, a connecting rod rotating synchronously with the rotary shaft, and a side panel articulated to the lifting platform;

[0006] A limiting unit comprising a cam element that tilts synchronously with the rotating shaft, a sliding bushing that is fitted outside one end of the cam element, a mounting seat arranged on the bottom of the lifting platform, a limiting plate that tilts about an axis of the through-hole of the mounting seat, and an elastic element for driving the return of the limiting plate;

[0007] The rotation of the turntable synchronously drives the tilting of the rotating shaft, and the rotating shaft also drives the limiting plate against the side wall of the drone, thus holding the drone in place.

[0008] In a preferred embodiment of the present invention, the turntable is located centrally on the lifting platform;

[0009] The turntable has a first lumbar opening that extends through the surface of the turntable;

[0010] The push rod has a guide column that interacts with the first lumbar opening and a joint section connected to the articulated rod;

[0011] The connecting rod is connected to the joint section at one end and to the rotating shaft at the other end.

[0012] In a preferred embodiment of the present invention, the lifting platform has a bearing block which is arranged on the bottom thereof and serves to support the rotating shaft, wherein the rotating shaft rotates in the direction of the axis of the bearing block;

[0013] The connecting rod has a bending rod and a sleeve rod that slides along the bending rod;

[0014] The bending rod is fixed to the rotating shaft at one end and slides with the sleeve rod at the other end;

[0015] The sleeve rod is hinged to the side panel at its end furthest from the bending rod.

[0016] In a preferred embodiment of the present invention, the number of first lumbar openings is four groups, wherein four groups of the first lumbar openings are distributed in a circular array along the bearing of the rotary table;

[0017] The number of side panels corresponds to the number of the first lumbar openings, and the four groups of side panels each correspond to the surrounding side walls of the lifting platform.

[0018] In a preferred embodiment of the present invention, the cam element, which is rigidly connected to the rotating shaft, has a guide rod;

[0019] The sliding bushing has a second lumbar opening that rests against the floor of the lifting platform;

[0020] The guide rod passes through the second lumbar opening and extends outwards, the guide rod sliding against the second lumbar opening. In a preferred embodiment of the present invention, the cam element rotates synchronously with the rotating shaft, which causes the sliding bushing to move linearly back and forth; the side panel rests against the surface of the sliding bushing, the sliding bushing being able to support the side panel when the side panel is parallel to the support surface of the lifting platform.

[0021] In a preferred embodiment of the present invention, a through-opening is formed on a surface of the lifting platform;

[0022] The limiting plate has a pin that interacts with a through hole in the mounting seat;

[0023] The boundary plate is positioned inside the passage opening;

[0024] The elastic element is attached to the outside of the pen.

[0025] In a preferred embodiment of the present invention, the end of the sliding bushing can bear against the outer wall of the boundary plate and the movement of the sliding bushing can drive the boundary plate to tilt along the axis of the pin; the tilting of the boundary plate presses the elastic element, so that the elastic element compresses the energy storage.

[0026] In a preferred embodiment of the present invention, the sliding bushing is located far from the outer wall of the boundary plate, and the elastic element is elastically deformed and thus causes the boundary plate, which is located under the support surface of the lifting platform, to tilt.

[0027] In a preferred embodiment of the present invention, the number of boundary plates is four groups, wherein the four groups of boundary plates are arranged two to each other;

[0028] The boundary plate rests against the outer wall of the drone when the side panel is arranged perpendicular to the support surface of the lifting platform;

[0029] The opposing boundary plates create a clamping fixation of the drone.

[0030] The advantageous effects of the present invention consist in that, by rotating the turntable, four groups of side panels can be driven simultaneously to tilt, wherein the side panels tilt into a horizontal position relative to the lifting platform during takeoff and landing of the drone, thereby increasing the area of ​​the drone's lifting platform to ensure accurate landing of the drone on the platform; during transport of the drone, the side panel is perpendicular to the lifting platform, with the limiting plate simultaneously limiting the position of the drone to ensure that the drone does not fall during the movement of the carrier. BRIEF DESCRIPTION OF THE DRAWING

[0031] To explain the technical solutions of the embodiments of the present invention more clearly, a simple description of the embodiments of the present invention is given below in conjunction with the accompanying drawings; it is obvious that the accompanying drawings in the following description relate only to some embodiments of the present invention and do not limit the present invention. Fig. Figure 1 is a schematic view of the drone's hover state; Fig. Figure 2 is a schematic view of the unfolding of the lifting platform; Fig. Figure 3 is a schematic view of the connection structure of the protective unit with the lifting platform; Fig. Figure 4 is a schematic view of the structure of the boundary unit; Fig. Figure 5 is a schematic view of the boundary plate in a vertical state. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the specific embodiments and the accompanying drawings in order to enable those skilled in the art to better understand the present invention.

[0033] The terms used in the present invention are those commonly used in the field, taking into account the functions of the present invention. However, they may vary according to the intentions of a person skilled in the art, the preparation of the invention, or new techniques in the field. Furthermore, the applicant may select certain terms, in which case their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the description are not to be understood as mere designations, but are based on the meaning of the terms and the general description of the present invention.

[0034] In relation to Fig. 1 to Fig. 5, the present invention provides a loading platform for inspection drones, comprising a carrier 1 in the interior of which a lifting platform 2 is installed, which serves for launching and loading the drones; the carrier 1 has a drive system for controlling the movement of the carrier 1 in order to move the drone, which lies on the lifting platform 2, into a suitable position.

[0035] Furthermore, a protective unit 3, which has a turntable 31 attached to the base of the lifting platform 2, wherein a bearing block is attached to the base of the lifting platform 2 and a connecting axle is mounted in the center of the turntable 31, which is connected to the bearing block to ensure that the turntable 31 can rotate along the connecting axle; a push rod 32 cooperating with the turntable 31, which can move in a horizontal direction when the turntable 31 rotates; The lifting platform 2 is provided with a guide rail on the base and the movement path of the push rod 32 can be further limited by the cooperation between the guide rail and the push rod 32, so that the push rod 32 moves linearly back and forth along the guide rail when the turntable 31 rotates;a connecting rod 33 attached to one end of the push rod 32, which is pivotally connected to one end of the push rod 32, and when the push rod 32 moves along a straight-line direction, the connecting rod 33 is driven to move synchronously; a rotary shaft 34, which is pivotally connected to an end of the connecting rod 33 remote from the push rod 32 and rotates along the fixed position of the floor of the lifting platform 2 and is pivotally connected to the connecting rod 33, the rotary shaft 34 interacting with the push rod 32 through the connecting rod 33, and when the push rod 32 moves along a straight-line direction, the rotary shaft 34 is driven to tilt; a connecting rod 35 which rotates synchronously with the rotary shaft 34 and is connected to the rotary shaft 34, wherein the rotation of the rotary shaft 34 causes the connecting rod 35 to rotate, and the connecting rod 35 is hinged at one end to the side panel 36;a side panel 36 which is hinged to the lifting platform 2, wherein the lifting platform 2 is connected to the side panel 36 by a hinge, thereby further restricting the direction of tilting of the side panel 36 to ensure that the side panel 36 is perpendicular to the lifting platform 2 or parallel to the lifting platform 2.;

[0036] It should be noted that the number of push rods 32 is four groups, and that the four groups of push rods 32 are driven simultaneously by the rotary table 31. In the present embodiment, an output gear is arranged on the outside of the connecting shaft of the rotary table 31, which is provided on one side with a meshing drive gear, wherein the drive gear is a small gear and the output gear is a large gear. The small gear is connected to a motor by which the rotary table 31 is driven to rotate. By means of the structure in which the large gear is set in rotation by the small gear, the torque can be increased, thereby making it possible to drive the side panel 36 to tilt normally under a high load on the motor.

[0037] Furthermore, a limiting unit 4 comprising a cam element 41 that tilts synchronously with the rotating shaft 34, a sliding bushing 42 which is mounted outside one end of the cam element 41 and whose cross-section is formed in the conical structure, wherein the lifting platform 2 is provided with a guide rail on the floor and the direction of movement of the sliding bushing 42 can be further limited by the cooperation between the guide rail and the sliding bushing 42, so that the sliding bushing 42 moves linearly back and forth when the turntable 31 rotates; a mounting seat 43 arranged on the floor of the lifting platform 2; the cross-section of the mounting seat 43 is formed in the conical structure, which is fastened to the floor of the lifting platform 2 by a screw, and whose side wall is provided with a continuous through-opening;a limiting plate 44 which tilts about an axis of the through-hole of the mounting seat 43 and is arranged inside the mounting seat 43, wherein the outer wall of the limiting plate 44 abuts against the inner wall of the mounting seat 43, the side wall of the limiting plate 44 is provided with a pivot shaft which cooperates with the through-hole to ensure that the limiting plate 44 rotates along the axial direction of the through-hole, and has an elastic element 45 for driving the return of the limiting plate 44, wherein in this embodiment the elastic element 45 is preferably a torsion spring, wherein an outwardly extending end of the elastic element 45 abuts the inner wall of the limiting plate 44 and the other end abuts the side wall of the mounting seat 43.

[0038] It should be noted that the number of cam elements 41 is two groups, and the two groups of cam elements 41 are symmetrically distributed, whereby the two groups of cam elements 41 drive the two groups of limiting plates 44 to tilt, thereby increasing the contact area with the drone and allowing the drone to be attached more firmly.

[0039] Preferably, the limiting plate 44 is provided with a rubber cushion at the end that is in contact with the drone, and the rubber cushion brings the side wall of the drone into contact, effectively preventing the limiting plate 44 from damaging the drone during the attachment of the clamp.

[0040] During use, the drone must be clamped and secured when the operator drives the motor to rotate the turntable 31, and the turntable 31 rotates and drives the push rod 32 to move along the straight-line direction; as the push rod 32 moves, the articulated rod 33 is simultaneously driven to rotate, and as the articulated rod 33 rotates, the pivot shaft 34 is driven to tilt, and as the pivot shaft 34 tilts, the side panel 36 is driven to tilt so that the side panel 36 is perpendicular to the lifting platform 2;The rotary shaft 34 drives the side panel 36 to tilt and simultaneously drives the cam element 41 to rotate; the rotation of the cam element 41 drives the sliding bushing 42 to move in a horizontal direction; the movement of the sliding bushing 42 further drives the limiting plate 44 to tilt, so that the limiting plate 44 tilts until perpendicular to the lifting platform 2; and after the limiting plate 44 has tilted into the vertical position, the side wall of the limiting plate 44 rests against the outer wall of the drone; and the clamp of the drone is fixed by two groups of opposing limiting plates 44, which are arranged on both sides of the drone.

[0041] In relation to Fig. 1 to Fig. 5 the turntable 31 is located centrally on the lifting platform 2; The turntable 31 has a first lumbar opening 311 which extends through the surface of the turntable 31; The push rod 32 has a guide column 321 which interacts with the first lumbar opening 311 and a joint section 322 connected to the connecting rod 33; The connecting rod 33 is connected at one end to the joint section 322 and at the other end is articulated to the rotary shaft 34.

[0042] It should be noted that the turntable 31 is located centrally on the lifting platform 2, ensuring that the distance from the turntable 31 to the peripheral side walls of the lifting platform 2 is the same during rotation; The first lumbar opening 311 is set at an inclination and extends outwards from the circular position of the turntable 31 with respect to the circumference.

[0043] Preferably the guide column 321 is arranged inside the first lumbar opening 311, and when the rotary table 31 is rotated, the inner wall of the first lumbar opening 311 presses the outside of the guide column 321 and can thus move the push rod 32 linearly along a fixed path.

[0044] Both ends of the connecting rod 33 are articulated, with the connecting rod 33 interacting at one end with the joint section 322 and at the other end with the pivot shaft 34. Through the connection of the connecting rod 33, the push rod 32 can drive the pivot shaft 34 to rotate during a linear movement.

[0045] Furthermore, the lifting platform 2 comprises a bearing block 21, which is arranged at its base to support the rotary shaft 34, which rotates in the axial direction of the bearing block 21; The connecting rod 35 comprises a bending rod 351 and a sleeve rod 352, which slides along the bending rod 351; A bending rod 351 is fixedly connected at one end to the rotating shaft 34 and slidably connected at the other end to the sleeve rod 352; One end of the sleeve 352, away from the bending rod 351, is pivotally connected to the side plate 36.

[0046] It should be noted that the rotary shaft 34 can be supported by the bearing block 21 and is rotatable in the axial direction of the bearing block 21 by a certain angle; wherein the bending rod 351 is angled at an obtuse angle and the sleeve rod 352 is in sliding engagement with the bending rod 351, one end of the sleeve rod 352 being articulated to the side panel 36, and the obtuse angle of the bending rod 351 ensures that the tilting of the side panel 36 into a vertical state does not interfere with the movement; sliding between the sleeve rod 352 and the bending rod 351 further satisfies the change in position of the sleeve rod 352 during the tilting of the side panel 36, thereby driving a rotation of the bending rod 351 and consequently a rotation of the sleeve rod 352.

[0047] Furthermore, the number of first lumbar openings 311 is four groups, wherein four groups of first lumbar openings 311 are distributed in a circular array along the bearing of the turntable 31; the number of side panels 36 corresponds to the number of first lumbar openings 311, and the four groups of side panels 36 each correspond to the circumferential side walls of the lifting platform 2.

[0048] It should be noted that the four groups of side panels 36 each correspond to the four groups of side walls of the lifting platform 2, and when the side panels 36 tilt to a vertical position, the four groups of side panels 36 work together with the lifting platform 2 to form a downwardly open box, effectively preventing the drone from falling and also from being touched by external devices.

[0049] In particular, in the present embodiment example, the floor of the lifting platform 2 corresponds to the position of the drone on the support surface of the lifting platform 2.

[0050] When in use, during takeoff of the drone, the operator can press the inner wall of the first lumbar openings 311 into the interior of the turntable 31 and the outer side of the guide column 321. Pressing the guide column 321 drives the push rod 32 to move in the linear direction. The movement of the push rod 32 drives the articulated rod 33 to move. The articulated rod 33 is articulated to both the rotary shaft 34 and the push rod 32, and the movement of the push rod 32 simultaneously drives the rotary shaft 34 to rotate. The rotation of the rotary shaft 34 further drives the bending rod 351 to rotate, and the rotation of the bending rod 351 drives the sleeve rod 352 to tilt. The sleeve rod 352 slides relative to the bending rod 351 synchronously with the tilting, and the takeoff and landing of the drone can be performed when the side panel 36 tilts into the horizontal position.

[0051] In relation to Fig. 1 to Fig. 5 the cam element 41, which is fixedly connected to the rotary shaft 34, has a guide rod 411; The sliding bushing 42 has a second lumbar opening 421 which rests against the floor of the lifting platform 2; The guide rod 411 passes through the second lumbar opening 421 and extends outwards, the guide rod 411 slidably interacting with the second lumbar opening 421.

[0052] It should be noted that the cam element 41 is fixedly connected to the rotating shaft 34 and the guide rod 411 is not aligned axially with the rotating shaft 34, so that the rotating shaft 34 rotates differently relative to the guide rod 411; the guide rod 411 changes in height as it rotates vertically and the inner wall of the second lumbar opening 421 continues to be pressed by the outer wall of the guide rod 411, so that the sliding bushing 42 moves in a straight direction. It should be noted that the length of the sliding bushing 42 is adjustable depending on the position of the limiting plate 44 and thus ensures that the movement of the sliding bushing 42 can cause the limiting plate 44 to tilt in order to achieve the clamping of the drone's side wall.

[0053] Furthermore, the cam element 41 rotates synchronously with the rotating shaft 34, which causes the sliding bushing 42 to move linearly back and forth; The side panel 36 rests against the surface of the sliding bushing 42, whereby the sliding bushing 42 can support the side panel 36 when the side panel 36 is parallel to the support surface of the lifting platform 2.

[0054] It should be noted that the guide rod 411 drives the sliding bushing 42 to move in the linear direction, while the cam element 41 rotates with the rotary shaft 34; when the side panel 36 is in the unfolded state, the sliding bushing 42 is moved away from the center of the lifting platform 2, so that the surface of the sliding bushing 42 contacts both the lifting platform 2 and the side panel 36, thereby providing some support to the side panel 36, thus ensuring that the side panel 36 remains stable in a horizontal state.

[0055] Furthermore, a through-opening 22 is formed on a surface of the lifting platform 2; The limiting plate 44 has a pin 441 which interacts with a through-hole of the mounting seat 43; The limiting plate 44 is arranged inside the through-opening 22; The elastic element 45 is attached outside the pin 441.

[0056] It should be noted that the path along which the limit plate 44 tilts passes through the through-opening 22, the pin 441 interacts with the through-opening of the mounting seat 43, and thus enables the limit plate 44 to be driven to tilt in the direction of the axis of the pin 441 when the limit plate 44 is compressed; the elastic element 45 is attached outside the pin 441, and the end of the elastic element 45 extending outwards rests against the inner wall of the limit plate 44, and the other end rests against the inner wall of the mounting seat 43; in the normal state, the elastic deformation of the elastic element 45 drives the pin 441 to tilt, so that the highest point of the limit plate 44 is below the support surface of the lifting platform 2, thus ensuring that the support surface of the lifting platform 2 is free of protrusions.

[0057] Furthermore, the end of the sliding bushing 42 can bear against the outer wall of the limiting plate 44, and the movement of the sliding bushing 42 can cause the limiting plate 44 to tilt along the axis of the pin 441. The tilting of the limiting plate 44 compresses the elastic element 45, causing the elastic element 45 to compress the energy storage. It should be noted that when the sliding bushing 42 moves towards the central position of the lifting platform 2, the end of the lifting platform 42 bears against the side walls of the limiting plate 44. As the movement of the lifting platform 42 increases, the limiting plate 44 can be caused to tilt, so that the limiting plate 44 is perpendicular to the lifting platform 2. When the limiting plate 44 is perpendicular, its end bears against the outer wall of the drone, thus clamping the drone.

[0058] Furthermore, the sliding bushing 42 is far from the outer wall of the limiting plate 44, and the elastic element 45 is elastically deformed and thus causes the limiting plate 44 to tilt, which is located under the support surface of the lifting platform 2.

[0059] It should be noted that when the sliding bushing 42 is moved away from the central position of the lifting platform 2, the elastic element 45 is elastically deformed and the cam element 41 is driven to tilt, and the highest point of the cam element 41 is located below the support surface of the lifting platform 2 during the tilting of the cam element 41; tilting of the cam element 41 during the landing of the drone is effectively avoided.

[0060] Furthermore, the number of limiting plates 44 is four groups, wherein the four groups of limiting plates 44 are arranged two to each other; The limiting plate 44 rests against the outer wall of the drone when the side panel 36 is arranged perpendicular to the support surface of the lifting platform 2; A clamping fixation of the drone is achieved by the opposing limiting plates 44.

[0061] It should be noted that two boundary plates 44 each form a group and each group corresponds to a different side panel 36. When the side panel 36 tilts into the vertical position, the boundary plate 44 also tilts synchronously with the side panel 36 into the vertical position in order to limit the position of the drone by the boundary plate 44. In addition, the side panel 36 is folded to a position near the lifting platform 2 to protect the wing of the drone from the circumferential side, thus effectively preventing damage to the wing from collision.

[0062] When the drone needs to be transported to the predetermined position using the carrier 1 and rotated by driving the turntable 31, the position of the first lumbar openings 311 inside the turntable changes as the turntable 31 rotates. During the rotation of the turntable 31, the inner wall of the first lumbar openings 311 presses against the outer wall of the guide column 321, causing the guide column 321 to move along the inner path of the first lumbar openings 311. The position of the end of the push rod 32 is limited by the guide rail, allowing the push rod 32 to move back and forth in a linear direction. The movement of the push rod 32 drives the connecting rod 33 to move. The connecting rod 33 is articulated to both the rotating shaft 34 and the push rod 32, so that when the connecting rod 33 moves, the rotating shaft 34 is driven to tilt along the axis of the bearing block 21.Tilting the pivot shaft 34 further drives the connecting rod 35 to tilt, the tilting of the connecting rod 35 drives the side panel 36 to tilt, so that the side panel 36 tilts into the vertical position relative to the lifting platform 2; The four groups of side panels 36 work together with the lifting platform 2 to form a downwardly open box, thus protecting the drone placed inside from damage.

[0063] The rotation of the rotary shaft 34 can simultaneously cause the cam element 41 to rotate, and the rotation of the cam element 41 can move the guide rod 411 along the inner wall track of the second lumbar opening 421; when the guide rod 411 tilts, the sliding bushing 42 is driven to move in a straight direction; the end of the sliding bushing 42 rests against the outer wall of the limiting plate 44 during the movement, so that the limiting plate 44 tilts in the direction of the axis of the pin 441; the limiting plate 44 tilts until perpendicular to the lifting platform 2 and rests with its ends against the outer wall of the drone, so that the clamping of the drone is effected by two groups of opposing limiting plates 44.

[0064] Finally, it should be noted that the methods and devices described in detail above are merely exemplary embodiments which can be modified in various ways by a person skilled in the art without leaving the scope of the present invention.

[0065] It is important that the above embodiments serve only to illustrate the technical solutions of the present invention and do not represent a limitation, and that, although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications and equivalent substitutions of the technical solutions of the present invention can be carried out without departing from the spirit and scope of the technical solutions of the present invention, which are intended to fall within the scope of the claims of the present invention.

Claims

[1] Loading platform for inspection drones, comprehensive, a carrier (1) inside which a lifting platform (2) is installed, which serves for launching and loading the drones; a protective unit (3) comprising a turntable (31) attached to the base of the lifting platform (2), a push rod (32) cooperating with the turntable (31), a connecting rod (33) attached to one end of the push rod (32), a rotary shaft (34) articulated to an end of the connecting rod (33) remote from the push rod (32), a connecting rod (35) rotating synchronously with the rotary shaft (34), and a side panel (36) articulated to the lifting platform (2); A limiting unit (4) comprising a cam element (41) which tilts synchronously with the rotating shaft (34), a sliding bushing (42) which is mounted outside one end of the cam element (41), a mounting seat (43) arranged on the bottom of the lifting platform (2), a limiting plate (44) which tilts about an axis of the through-hole of the mounting seat (43), and an elastic element (45) for driving the return of the limiting plate (44); The rotation of the turntable (31) synchronously drives the tilting of the rotating shaft (34), and the rotating shaft (34) further drives the limiting plate (44) against the side wall of the drone, so that the drone is held in a clamping position. [2] Charging platform for inspection drones according to claim 1, wherein: The turntable (31) is located in the center of the lifting platform (2); the turntable (31) has a first lumbar opening (311) which extends through the surface of the turntable (31); the push rod (32) has a guide column (321) cooperating with the first lumbar opening (311) and a joint section (322) connected with the joint rod (33); the connecting rod (33) is connected at one end to the joint section (322) and at the other end is articulated to the rotating shaft (34). [3] Charging platform for inspection drones according to claim 2, wherein: the lifting platform (2) has a bearing block (21) which is arranged on the bottom thereof and serves to support the rotating shaft (34), wherein the rotating shaft (34) rotates in the direction of the axis of the bearing block (21); the connecting rod (35) has a bending rod (351) and a sleeve rod (352) which slides along the bending rod (351); the bending rod (351) is fixedly connected to the rotating shaft (34) at one end and slidably interacts with the sleeve rod (352) at the other end; the sleeve rod (352) is hinged to the side panel (36) at its end furthest from the bending rod (351). [4] Charging platform for inspection drones according to claim 3, wherein: the number of first lumbar openings (311) is four groups, wherein four groups of first lumbar openings (311) are distributed in a circular array along the bearing of the turntable (31); the number of side panels (36) corresponds to the number of first lumbar openings (311), and the four groups of side panels (36) each correspond to the surrounding side walls of the lifting platform (2). [5] Charging platform for inspection drones according to claim 4, wherein: The cam element (41), which is rigidly connected to the rotating shaft (34), has a guide rod (411); the sliding bushing (42) has a second lumbar opening (421) which rests against the floor of the lifting platform (2); the guide rod (411) passes through the second lumbar opening (421) and extends outwards, the guide rod (411) slidably interacting with the second lumbar opening (421). [6] Charging platform for inspection drones according to claim 5, wherein: The cam element (41) rotates synchronously with the rotating shaft (34), which causes the sliding bushing (42) to move linearly back and forth; the side panel (36) rests against the surface of the sliding bushing (42), the sliding bushing (42) being able to support the side panel (36) when the side panel (36) is parallel to the support surface of the lifting platform (2). [7] Charging platform for inspection drones according to claim 6, wherein: A through-opening (22) is formed on a surface of the lifting platform (2); the limiting plate (44) has a pin (441) which interacts with a through hole of the mounting seat (43); the boundary plate (44) is arranged within the passage opening (22); The elastic element (45) is attached outside the pin (441). [8] Charging platform for inspection drones according to claim 7, wherein: The end of the sliding bushing (42) can rest against the outer wall of the limiting plate (44) and the movement of the sliding bushing (42) can cause the limiting plate (44) to tilt along the axis of the pin (441); The tilting of the boundary plate (44) pushes the elastic element (45), so that the elastic element (45) compresses the energy storage. [9] Charging platform for inspection drones according to claim 8, wherein: the sliding bushing (42) is far away from the outer wall of the boundary plate (44), and the elastic element (45) is elastically deformed and thus causes the limiting plate (44) to tip over, which is located under the support surface of the lifting platform (2). [10] Charging platform for inspection drones according to claim 8, wherein: the number of boundary plates (44) is four groups, wherein the four groups of boundary plates (44) are arranged two to each other; the boundary plate (44) rests against the outer wall of the drone when the side panel (36) is arranged perpendicular to the support surface of the lifting platform (2); The opposing boundary plates (44) provide a clamping fixation of the drone.

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