Telescopic surveying and mapping structure of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of surveying and mapping unmanned aerial vehicles, in particular to an unmanned aerial vehicle telescopic surveying and mapping structure which comprises an unmanned aerial vehicle body and a telescopic protection mechanism arranged at the bottom of the unmanned aerial vehicle body. The telescopic protection mechanism comprises a fixed pile casing which is arranged at the bottom of the unmanned aerial vehicle body, a support is fixedly arranged on the top wall in the fixed pile casing, a screw is rotationally assembled in the support, a shear type telescopic connecting rod is arranged on the lower side of the support, and the upper end of the shear type telescopic connecting rod is in threaded connection with the screw through two sets of threaded sliding blocks. The left end of the screw is fixedly connected to the output end of the driving motor, a bottom plate with the same inner diameter as the fixed pile casing is arranged on the lower side of the shear-type telescopic connecting rod, the shear-type telescopic connecting rod is hinged to the bottom plate through a hinge seat, and the bottom plate is fixedly connected with the top of the photoelectric pod through a screw. According to the telescopic surveying and mapping structure of the unmanned aerial vehicle, the telescopic design is adopted, the photoelectric pod can be contracted and stored when the unmanned aerial vehicle takes off and lands, and damage caused by collision with an object on the bottom face is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to surveying and mapping unmanned plane technical field, concretely relates to a telescopic surveying and mapping structure of unmanned plane, aims at realizing the function of the contraction of the optical pod, the protection and the reduction of dust impurity adhesion. BACKGROUND

[0002] The surveying and mapping unmanned plane is a kind of unmanned plane system specially used for geographic information collection.It combines aerial photography, remote sensing technology and unmanned plane technology, can capture detailed images and data of the earth surface in high altitude, provides high-precision, high-efficiency solution for various surveying and mapping work.The surveying and mapping unmanned plane is mainly composed of three parts of airborne equipment, communication system and data processing system.The airborne equipment includes high-precision camera, laser radar and other sensors, is used to obtain ground information;The communication system is responsible for the data transmission between unmanned plane and ground control station;The data processing system processes and analyzes the data collected, generates geographic spatial data

[0003] With the increasing maturity of unmanned plane technology and the emergence of diversified application requirements, the optical pod as one of the key load devices of surveying and mapping unmanned plane plays an important role in reconnaissance, monitoring and other fields.However, the existing optical pod usually adopts fixed structure and is directly hoisted on the bottom of unmanned plane, and in the process of take-off and landing of unmanned plane, the optical pod is easy to collide with the bottom object and cause damage;At the same time, in the process of flight, the optical pod is easy to attach dust impurities in the air, which affects the imaging quality.Therefore, it is of great significance to design an optical pod structure that can be contracted, protected and reduce dust impurities adhesion. UTILITY MODEL CONTENT

[0004] In view of the existing deficiencies, the utility model provides a telescopic surveying and mapping structure of unmanned plane, solves the problems in the above background technology, and the utility model adopts telescopic design, can contract the optical pod when unmanned plane takes off and lands, avoids collision with the bottom object and damage.

[0005] To achieve the above purpose, the utility model adopts the technical scheme that:

[0006] A telescopic surveying and mapping structure of unmanned plane, including unmanned plane body and telescopic protection mechanism, the bottom of the unmanned plane body is provided with telescopic protection mechanism, the lower side of the telescopic protection mechanism is fixedly connected with optical pod;

[0007] The telescopic protection mechanism comprises a fixed protection cylinder, a driving motor, a scissor type telescopic connecting rod, a bottom plate, a hinged seat, a support and a screw rod, the fixed protection cylinder is arranged at the bottom of the unmanned aerial vehicle body, the upper segment part is embedded into the inside of the unmanned aerial vehicle body, a support is fixedly arranged on the top wall of the inside of the fixed protection cylinder, a screw rod is rotatably arranged in the inside of the support, two groups of threads with opposite screw directions are formed in the left and right sides of the screw rod, a scissor type telescopic connecting rod is arranged at the lower side of the support, the upper end of the scissor type telescopic connecting rod is screw-connected with the screw rod through two groups of thread blocks, the left end of the screw rod is fixedly connected to the output end of the driving motor, the lower side of the scissor type telescopic connecting rod is provided with a bottom plate with the same inner diameter as the fixed protection cylinder, the scissor type telescopic connecting rod and the bottom plate are hinged through the hinged seat, and the bottom plate is fixedly connected with the top of the photoelectric pod through screws.

[0008] Further, a plurality of guide rails are symmetrically arranged in the inside of the fixed protection cylinder, a sliding groove matched with the guide rails is formed in the corresponding position of the edge of the bottom plate, and the bottom plate is clamped on the guide rails and is in sliding connection with the guide rails through the sliding groove.

[0009] Further, a limiting baffle ring is fixedly arranged on the inner wall of the fixed protection cylinder, and the limiting baffle ring is located at the bottom of the guide rail and has a larger inner diameter than the diameter of the photoelectric pod.

[0010] Further, a connecting plate is fixedly arranged on the outer ring surface of the fixed protection cylinder, and the connecting plate is fixedly connected with the unmanned aerial vehicle body through a plurality of screws.

[0011] Further, two outwardly split semicircular protective covers are arranged at the bottom of the fixed protection cylinder, the radius of the protective cover is the same as that of the fixed protection cylinder, and the outer edge of the protective cover is hinged to the fixed protection cylinder through a spring hinge.

[0012] Further, a plurality of circular flow guide wing plates are uniformly arranged on the ring surface of the fixed protection cylinder, and the flow guide wing plates are arranged on the fixed protection cylinder at the lower side region of the connecting plate.

[0013] Compared with the prior art, the telescopic surveying and mapping structure of the unmanned aerial vehicle has the following beneficial effects:

[0014] 1、The telescopic surveying and mapping structure of the unmanned aerial vehicle adopts a telescopic design, so that the photoelectric pod can be retracted and stored when the unmanned aerial vehicle takes off and lands, thereby avoiding damage caused by collision with the bottom object.

[0015] 2、The telescopic surveying and mapping structure of the unmanned aerial vehicle can protect the photoelectric pod itself while the photoelectric pod is retracted and stored, thereby preventing the photoelectric pod from being impacted or damaged during flight.

[0016] 3、The telescopic surveying and mapping structure of the unmanned aerial vehicle can retract the photoelectric pod when the photoelectric pod is not in use, thereby reducing the attachment of dust and impurities in the air on the photoelectric pod during flight, and ensuring the imaging quality.

[0017] 4、The utility model discloses a plurality of guide rails are symmetrically arranged in the fixed cylinder, and the bottom plate is provided with a sliding groove corresponding to the guide rail at the edge, and the bottom plate is clamped on the guide rail through the sliding groove and is connected with the guide rail slidingly. The cooperation of the guide rail and the sliding groove provides a stable sliding track for the bottom plate, ensures the stable movement of the bottom plate during the extension and retraction process, effectively prevents the deviation or shaking of the bottom plate during the extension and retraction process, and improves the stability of the whole extension and protection mechanism.

[0018] 5、When the photoelectric pod is retracted into the fixed cylinder, the two semicircular covers can completely cover the bottom opening of the fixed cylinder in the closed state, effectively prevent external foreign matters (such as dust, rainwater, small stones and the like) from entering the fixed cylinder, and protect the extension and protection mechanism and the photoelectric pod from being damaged. Meanwhile, the design of the spring hinge enables the cover to be automatically closed without external force, maintains the sealing property of the bottom of the fixed cylinder, and improves the convenience of use.

[0019] 6、The utility model discloses that the fixed cylinder is evenly provided with a plurality of circular flow guide wing plates on the surface, and the flow guide wing plates are located on the fixed cylinder below the connecting plate. The design of the flow guide wing plates can guide the airflow to flow smoothly along the surface of the fixed cylinder, reduce the generation of airflow separation and vortex, help to reduce the air resistance of the unmanned aerial vehicle during the flight process, and improve the stability and efficiency of the flight. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is the whole structure schematic diagram of the utility model.

[0021] Fig. 2 It is the structure schematic diagram of the extension and protection mechanism in the utility model.

[0022] Fig. 3 It is the sectional view of the extension and protection mechanism in the utility model.

[0023] Fig. 4 It is the local structure schematic diagram of the extension and protection mechanism in the utility model.

[0024] In the drawing: 1, unmanned aerial vehicle body;2, extension and protection mechanism;21, fixed cylinder;22, connecting plate;23, flow guide wing plate;24, cover;25, drive motor;26, scissor type extension and retraction connecting rod;27, guide rail;28, bottom plate;281, sliding groove;29, hinged seat;210, support;211, screw;212, threaded sliding block;213, limit stop ring;3, photoelectric pod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Embodiment:

[0027] As Figs. 1 to 4 shown, a telescopic surveying structure of unmanned aerial vehicle, including unmanned aerial vehicle body 1 and telescopic protection mechanism 2, unmanned aerial vehicle body 1 bottom is provided with telescopic protection mechanism 2, telescopic protection mechanism 2 adopts telescopic design, can shrink and accommodate photoelectric pod 3 when unmanned aerial vehicle takes off, lands, avoids and bottom object collision and causes damage, the lower side of telescopic protection mechanism 2 is fixedly connected with photoelectric pod 3;

[0028] Telescopic protection mechanism 2 includes fixed protection cylinder 21, drive motor 25, scissor type telescopic connecting rod 26, bottom plate 28, hinged seat 29, support 210 and screw rod 211, fixed protection cylinder 21 is located at the bottom of unmanned aerial vehicle body 1, and the upper section part is embedded in the inside of unmanned aerial vehicle body 1, fixed protection cylinder 21 is used to accommodate photoelectric pod 3, realizes the telescopic protection of photoelectric pod 3, the inside top wall of fixed protection cylinder 21 is fixedly provided with support 210, support 210 is rotatably assembled with screw rod 211 in the inside, and two groups of threads with opposite screw directions are formed in the left and right sides of screw rod 211, support 210 lower side is equipped with scissor type telescopic connecting rod 26, scissor type telescopic connecting rod 26 upper end is screwed with screw rod 211 through two groups of thread sliding blocks 212, realizes telescopic function by screw rod 211 cooperation scissor type telescopic connecting rod 26, the bidirectional thread design of screw rod 211 allows scissor type telescopic connecting rod 26 to carry out synchronous and symmetrical telescopic movement under the action of drive motor 25, to drive photoelectric pod 3 to carry out telescopic movement, the left end of screw rod 211 is fixedly connected to the output end of drive motor 25, scissor type telescopic connecting rod 26 lower side is equipped with bottom plate 28 with the same inner diameter as fixed protection cylinder 21, scissor type telescopic connecting rod 26 is hinged with bottom plate 28 through hinged seat 29, bottom plate 28 is fixedly connected with the top of photoelectric pod 3 through screw, this design solves the problem that the existing photoelectric pod 3 usually adopts fixed structure and is directly hoisted on the bottom of unmanned aerial vehicle, in the process of taking off and landing of unmanned aerial vehicle, photoelectric pod 3 is easy to collide with bottom object and cause damage, at the same time, in the process of flight, photoelectric pod 3 is easy to attach dust and impurities in the air, affects the imaging quality.

[0029] In this embodiment, a plurality of guide rails 27 are symmetrically arranged inside the fixed sleeve 21, and a plurality of sliding grooves 281 are arranged at the edges of the bottom plate 28 corresponding to the positions of the guide rails 27. The bottom plate 28 is clamped on the guide rails 27 through the sliding grooves 281 and is in sliding connection with the guide rails 27. The cooperation of the guide rails 27 and the sliding grooves 281 provides a stable sliding track for the bottom plate 28, ensuring the smooth movement of the bottom plate 28 during the extension and contraction process. This design effectively prevents the bottom plate 28 from deviating or shaking during the extension and contraction process, thereby improving the stability of the entire telescopic protection mechanism 2.

[0030] In this embodiment, a limiting baffle 213 is fixed on the inner wall of the fixed sleeve 21, and the limiting baffle 213 is located at the bottom of the guide rail 27, and the inner diameter of the limiting baffle 213 is greater than the diameter of the photoelectric pod 3. The limiting baffle 213 serves as a physical barrier, effectively preventing the bottom plate 28 and the photoelectric pod 3 moving therewith from exceeding the predetermined safe range during the extension process. Even if the drive system fails, the limiting baffle 213 can ensure that the photoelectric pod 3 does not fall off or extend excessively, thereby protecting the safety of the photoelectric pod 3.

[0031] In this embodiment, a connecting plate 22 is fixed on the outer surface of the fixed sleeve 21, and the connecting plate 22 is fixedly connected to the unmanned aerial vehicle body 1 through a plurality of screws. The connecting plate 22 serves as a bridge between the fixed sleeve 21 and the unmanned aerial vehicle body 1, and is tightly connected together through a plurality of screws, ensuring the stability of the telescopic protection mechanism 2 during the flight of the unmanned aerial vehicle.

[0032] In this embodiment, two outwardly split semicircular covers 24 are arranged at the bottom of the fixed sleeve 21, and the radius of the cover 24 is the same as the radius of the fixed sleeve 21. The outer edge of the cover 24 is hinged to the fixed sleeve 21 through a spring hinge. When the photoelectric pod 3 is retracted into the fixed sleeve 21, the two semicircular covers 24 in the closed state can completely cover the bottom opening of the fixed sleeve 21, effectively preventing external foreign matters such as dust, rain, small stones, etc. from entering the inside of the fixed sleeve 21, protecting the telescopic protection mechanism 2 and the photoelectric pod 3 from damage. At the same time, the design of the spring hinge enables the cover 24 to automatically close when not subjected to external force, maintaining the sealing of the bottom of the fixed sleeve 21 and improving the convenience of use.

[0033] In this embodiment, a plurality of circular flow guide plates 23 are uniformly arranged on the surface of the fixed sleeve 21, and the flow guide plates 23 are arranged on the lower side of the fixed sleeve 21 of the connecting plate 22. The design of the flow guide plates 23 can guide the airflow to flow smoothly along the surface of the fixed sleeve 21, reducing the generation of airflow separation and vortex, which helps to reduce the air resistance of the unmanned aerial vehicle during flight, improving the stability and efficiency of flight.

[0034] The working principle of the telescopic surveying and mapping structure of the unmanned aerial vehicle is as follows:

[0035] In actual use, the optoelectronic pod 3 is in a retracted state, and the cover 24 is closed for protection. The UAV body 1 is ready for takeoff, and the telescopic protection mechanism 2 is in a safe storage state. The UAV takes off, and the telescopic protection mechanism 2 remains in a retracted state to avoid collision between the optoelectronic pod 3 and ground objects during takeoff. During flight, the guide wing plate 23 reduces air resistance, improves flight stability and efficiency. The cover 24 remains closed to prevent dust and other foreign matter from entering the fixed guard cylinder 21. After reaching the surveying area, the drive motor 25 is started, and the scissor-type telescopic link 26 is extended through the screw rod 211. The bottom plate 28 is extended with the link, driving the optoelectronic pod 3 to extend out of the fixed guard cylinder 21 to perform surveying work. After the surveying work is completed, the drive motor 25 is reversed, and the scissor-type telescopic link 26 is retracted. The bottom plate 28 and the optoelectronic pod 3 are retracted into the fixed guard cylinder 21, and the cover 24 is automatically closed. The UAV lands safely, and the telescopic protection mechanism 2 is again in a storage protection state.

[0036] In summary, the telescopic surveying structure of the UAV effectively protects the safety of the optoelectronic pod 3 during takeoff, landing and flight through the design of the telescopic protection mechanism 2, avoids damage caused by collision with objects, ensures flight stability and efficiency, and ensures smooth surveying work.

[0037] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description, and it is impossible to enumerate all the embodiments here. Any changes or variations that belong to the technical solutions of the utility model and are obvious are still within the protection scope of the utility model.

Claims

1. A telescopic surveying structure of unmanned aerial vehicle, comprising unmanned aerial vehicle body (1) and telescopic protection mechanism (2), characterized in that: The unmanned aerial vehicle body (1) bottom is provided with telescopic protection mechanism (2), the lower side of telescopic protection mechanism (2) is fixedly connected with photoelectric pod (3); The telescopic protection mechanism (2) includes fixed protection cylinder (21), drive motor (25), scissor type telescopic connecting rod (26), bottom plate (28), hinged seat (29), support (210) and screw rod (211), the fixed protection cylinder (21) is arranged at the bottom of the unmanned aerial vehicle body (1), and the upper segment part is embedded into the inside of the unmanned aerial vehicle body (1), the support (210) is fixedly arranged on the top wall in the fixed protection cylinder (21), the screw rod (211) is rotatably assembled in the support (210), and the screw rod (211) is provided with two groups of threads with opposite screw directions on the left and right sides, the support (210) is provided with the scissor type telescopic connecting rod (26) on the lower side, the scissor type telescopic connecting rod (26) is screwed with the screw rod (211) through two groups of thread blocks (212) on the upper end, the left end of the screw rod (211) is fixedly connected to the output end of the drive motor (25), the scissor type telescopic connecting rod (26) is provided with the bottom plate (28) with the same inner diameter of the fixed protection cylinder (21) on the lower side, the scissor type telescopic connecting rod (26) and the bottom plate (28) are hinged through the hinged seat (29), and the bottom plate (28) is fixedly connected with the top of the photoelectric pod (3) through screws.

2. The telescoping mapping structure of claim 1, wherein: A plurality of guide rails (27) are symmetrically arranged in the fixed protection cylinder (21), and a sliding groove (281) matched with the guide rail (27) is formed in the corresponding position of the edge of the bottom plate (28), and the bottom plate (28) is clamped on the guide rail (27) through the sliding groove (281) and is slidably connected with the guide rail (27).

3. The telescoping mapping structure of claim 2, wherein: The limit stop ring (213) is fixedly arranged on the inner wall of the fixed protection cylinder (21), and the limit stop ring (213) is located at the bottom of the guide rail (27), and the inner diameter of the limit stop ring (213) is greater than the diameter of the photoelectric pod (3).

4. The drone telescoping mapping structure of claim 1, wherein: A connecting plate (22) is fixedly arranged on the outer ring surface of the fixed protection cylinder (21), and the connecting plate (22) is fixedly connected with the unmanned aerial vehicle body (1) through a plurality of screws.

5. The drone telescoping mapping structure of claim 1, wherein: The fixed protection cylinder (21) is provided with two outwardly split semicircular protective covers (24) at the bottom, and the radius of the protective cover (24) is the same as that of the fixed protection cylinder (21), and the protective cover (24) is hinged with the fixed protection cylinder (21) through a spring hinge at the outer edge.

6. The telescoping mapping structure of the drone of claim 4, wherein: A plurality of circular guide vane plates (23) are uniformly arranged on the ring surface of the fixed protection cylinder (21), and the guide vane plates (23) are located on the fixed protection cylinder (21) on the lower side of the connecting plate (22).

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