Unmanned aerial vehicle intelligent water quality sampling device

Abstract

The utility model relates to the technical field of water quality sampling equipment, in particular to an unmanned aerial vehicle intelligent water quality sampling device which comprises a conical shell, a lifting lug, a floater, a connecting rod and a counterweight ball, the conical shell is of a shell structure with a thick middle section and two thin ends, the upper end and the lower end of the conical shell are provided with a top hole used for exhausting and a bottom hole used for water inflow respectively, and the top of the conical shell is provided with a lifting lug used for suspension; a floater capable of moving up and down relative to the conical shell is arranged in the conical shell, a connecting rod penetrating through the bottom wall of the conical shell is arranged at the lower end of the floater, and a counterweight ball is connected to the lower end of the connecting rod. The reliability is further improved; the self-weight is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality sampling equipment, in particular to an intelligent water quality sampling device for unmanned aerial vehicles (UAVs). Background Art

[0002] In recent years, the technology of water quality sampling by UAVs has gradually attracted attention. As an important means to improve the efficiency of environmental monitoring, its application has significant advantages. However, the existing UAV water quality sampling systems face the following several technical short - boards, which affect their actual application effects and promotion prospects:

[0003] The current UAV water quality sampling systems usually have complex structural designs: This complexity stems from the need to integrate multiple functional modules, including flight control systems, sampling devices, data transmission systems, etc. The complex structure not only increases the design difficulty of the system, but also makes maintenance and operation more cumbersome.

[0004] UAV water quality sampling systems involve a large number of mechanical and electronic components: These components include drive structures, sensors, sealing structures, as well as various cables and connectors, etc. Due to the large number of components, the number of failure points of the system increases, resulting in a relatively high overall failure rate. Frequent failures not only affect the normal operation of the UAV, but also increase the maintenance cost and reduce the reliability.

[0005] The relatively complex structure also leads to an increase in self - weight, requiring more energy to maintain flight. This directly results in low energy efficiency and a shortened flight time. The problem of large self - weight also limits the flexibility and mobility of the UAV, affecting its operation efficiency in complex water environments.

[0006] Therefore, it is necessary to optimize in terms of simplifying the structural design, reducing the failure rate, improving the reliability, and reducing the self - weight, so as to further promote the development of UAV water quality sampling technology. Content of the Utility Model

[0007] In view of the deficiencies of the prior art, the utility model provides an intelligent water quality sampling device for UAVs, which includes a conical outer shell, lifting lugs, floats, connecting rods, and counterweight balls;

[0008] The conical outer shell is a shell structure that is thick in the middle and thin at both ends. There are a top hole for exhausting air and a bottom hole for water inlet at the upper and lower ends respectively. The top of the conical outer shell is provided with lifting lugs for suspension; inside the conical outer shell, there is a float that can move up and down relative to the conical outer shell. A connecting rod passes through the bottom wall of the conical outer shell at the lower end of the float, and a counterweight ball is connected to the lower end of the connecting rod.

[0009] Preferably, the bottom wall of the conical outer shell is a concave arc surface opening downward, and the concave arc surface of the bottom wall of the conical outer shell is fitted and matched with the outer surface of the counterweight ball.

[0010] Preferably, the number of the bottom holes is more than one and they are evenly distributed on the concave arc surface of the bottom wall of the conical housing.

[0011] Preferably, a plurality of inner grooves parallel to the vertical direction are provided on the outer surface of the float, and convex ribs adapted to the inner grooves are provided on the inner wall of the conical housing.

[0012] Preferably, a magnetic sheet is provided on the outer side of the concave arc surface of the bottom wall of the conical housing, a ferromagnetic material magnetically attracted to the magnetic sheet is provided on the side of the counterweight ball facing the bottom wall of the conical housing, and the magnetic sheet is a flexible material.

[0013] Preferably, a flexible cover plate is provided at the top of the float. When the float moves relative to the conical housing to the top dead center, the flexible cover plate fits and adheres to the inner wall of the conical housing.

[0014] Preferably, a conical plug with a pointed tip upward is provided at the position where the lower end of the connecting rod is connected to the counterweight ball.

[0015] Compared with the prior art, the present utility model provides an intelligent water quality sampling device for unmanned aerial vehicles, having the following beneficial effects:

[0016] 1. The self-weight of the water quality sampling device is reduced, and an unmanned aerial vehicle with the same power can perform water quality sampling with a larger capacity.

[0017] 2. After collecting water quality samples by using buoyancy and magnetism, the sampling device is sealed without additional power devices and sealing structures, further improving reliability and reducing self-weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is an internal structural schematic diagram of the conical housing;

[0020] Figure 3 is Figure 2 an enlarged view of part A of

[0021] In the figure: 1, conical housing; 2, concave arc surface; 3, bottom hole; 4, top hole; 5, float; 6, connecting rod; 7, counterweight ball; 8, convex rib; 9, inner groove; 10, lifting lug; 11, sling; 12, flexible cover plate; 13, magnetic sheet; 14, unmanned aerial vehicle; 15, conical plug. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment

[0024] Next, in conjunction with Figures 1 to 3 , an intelligent water quality sampling device for drones provided by the present application is introduced, including a conical outer shell 1, a lifting lug 10, a float 5, a connecting rod 6, and a counterweight ball 7;

[0025] The conical outer shell 1 is a shell structure thick in the middle and thin at both ends, with a top hole 4 for exhausting air and a bottom hole 3 for water inlet provided at the upper and lower ends respectively. A lifting lug 10 for suspension is provided at the top of the conical outer shell 1; a float 5 that can move up and down relative to the conical outer shell 1 is provided inside the conical outer shell 1. A connecting rod 6 passing through the bottom wall of the conical outer shell 1 is provided at the lower end of the float 5, and a counterweight ball 7 is connected to the lower end of the connecting rod 6.

[0026] For details, see Figures 1 to 2 , a usage method is introduced: a sling 11 is connected to the lower end of the drone 14, and a lifting lug 10 is connected to the lower end of the sling 11. The drone 14 is controlled to fly above the sampling water surface and then slowly land. Under the action of gravity, the counterweight ball 7 drives the connecting rod 6 to pull the float 5 downward; as the drone 14 slowly lands and the conical outer shell 1 contacts the water surface, the water to be sampled enters the inside of the conical outer shell 1 through the bottom hole 3 below the conical outer shell 1. As the drone 14 continues to descend, the water level inside the conical outer shell 1 further rises. Under the action of buoyancy, the float 5 drives the connecting rod 6 to pull the float 5 upward, so that the counterweight ball 7 blocks the bottom hole 3.

[0027] At this time, the drone 14 rises, transports the sampled water to the detection point for detection, and thus completes a water sampling operation.

[0028] The bottom wall of the conical outer shell 1 is a concave arc surface 2 with an opening downward. The concave arc surface 2 of the bottom wall of the conical outer shell 1 fits with the outer surface of the counterweight ball 7, improving the efficiency and reliability of the counterweight ball 7 in blocking the bottom hole 3.

[0029] The number of the bottom holes 3 is more than one and they are evenly distributed on the concave arc surface 2 of the bottom wall of the conical outer shell 1. In the same passing area, multiple bottom holes 3 can reduce the probability of being blocked by solid impurities during the process of collecting water quality samples, and can achieve the effect of a filter. At the same time, the multiple bottom holes 3 form a porous structure, reducing the influence of atmospheric pressure on the flow rate of the sampled water entering and leaving the conical outer shell 1, and can improve the efficiency of the sampled water entering the inside of the conical outer shell 1.

[0030] The outer surface of the float 5 is provided with a plurality of inner grooves 9 parallel to the vertical direction, and the inner wall of the conical shell 1 is provided with protruding ribs 8 adapted to the inner grooves 9. The inner grooves 9 and the protruding ribs 8 form a groove-rail structure, which improves the movement stability of the float 5 in the conical shell 1 and reduces the inertial drift degree of the overall center during the flight of the drone 14.

[0031] See Figure 3 , a magnetic sheet 13 is provided on the outer side of the concave arc surface 2 of the bottom wall of the conical shell 1. One side of the counterweight ball 7 facing the bottom wall of the conical shell 1 is provided with a ferromagnetic material that magnetically attracts the magnetic sheet 13. The magnetic sheet 13 is a flexible material, and the flexible material can reduce the gap between the counterweight ball 7 and the bottom wall of the conical shell 1, improving the efficiency and reliability of the counterweight ball 7 in blocking the bottom hole 3.

[0032] The top of the float 5 is provided with a flexible cover plate 12. When the float 5 moves relative to the conical shell 1 to the top dead center, the flexible cover plate 12 fits and adheres to the inner wall of the conical shell 1, preventing the sampled water in the conical shell 1 from flying out of the conical shell 1 due to inertia during the acceleration or deceleration of the drone 14.

[0033] A conical plug 15 with a pointed tip upward is provided at the position where the lower end of the connecting rod 6 is connected to the counterweight ball 7. The conical plug 15 can further improve the efficiency and reliability of blocking the bottom hole 3.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An unmanned aerial vehicle intelligent water quality sampling device, characterized in that: It comprises a conical housing (1), a lifting lug (10), a float (5), a connecting rod (6) and a weighted ball (7); The conical shell (1) is a shell structure with a thick middle section and thin ends, and a top hole (4) for exhaust and a bottom hole (3) for water intake are respectively provided at the upper and lower ends, and a hanging ear (10) for suspension is provided at the top of the conical shell (1); a float (5) is provided inside the conical shell (1) and can move up and down relative to the conical shell (1), and a connecting rod (6) is provided at the lower end of the float (5) and passes through the bottom wall of the conical shell (1), and a counterweight ball (7) is connected to the lower end of the connecting rod (6).

2. The UAV intelligent water quality sampling device according to claim 1 is characterized by: The bottom wall of the conical outer shell (1) is an inner concave arc surface (2) opening downward, and the inner concave arc surface (2) of the bottom wall of the conical outer shell (1) fits snugly with the outer surface of the weighted ball (7).

3. The UAV intelligent water quality sampling device according to claim 1 is characterized by: The number of the bottom holes (3) is more than one and they are evenly distributed on the inner concave arc surface (2) of the bottom wall of the conical outer shell (1).

4. The intelligent water quality sampling device for unmanned aerial vehicles according to claim 1 is characterized in that: The outer surface of the float (5) is provided with a plurality of inner grooves (9) parallel to the vertical direction, and the inner wall of the conical shell (1) is provided with raised ribs (8) adapted to the inner grooves (9).

5. The intelligent water quality sampling device for unmanned aerial vehicles according to claim 2 is characterized in that: A magnetic sheet (13) is provided on the outer side of the inner concave arc surface (2) of the bottom wall of the conical outer shell (1), and a ferromagnetic material that is magnetically attracted to the magnetic sheet (13) is provided on the side of the counterweight ball (7) facing the bottom wall of the conical outer shell (1), and the magnetic sheet (13) is a flexible material.

6. The UAV intelligent water quality sampling device according to claim 1 is characterized by: A flexible cover plate (12) is provided on the top of the float (5). When the float (5) moves to the upper dead point relative to the conical shell (1), the flexible cover plate (12) fits closely to the inner wall of the conical shell (1).

7. The intelligent water quality sampling device for drones according to claim 1 is characterized by: A conical plug (15) with its tip pointing upward is provided at the position where the lower end of the connecting rod (6) is connected to the counterweight ball (7).

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