Unmanned aerial vehicle suspended supply device

Abstract

The utility model discloses an unmanned aerial vehicle suspended supply device, which relates to the technical field of unmanned aerial vehicles and comprises an unmanned aerial vehicle main body, two symmetrical leg supports are arranged at the bottom of the unmanned aerial vehicle main body, a liquid storage tank is mounted in the middle of the unmanned aerial vehicle main body, and a supply pump is mounted on the liquid storage tank. The output end and the input end of the replenishment pump are communicated with a first replenishment pipe and a second replenishment pipe respectively, the end, away from the replenishment pump, of the first replenishment pipe is communicated with the top of the liquid storage tank, and the unmanned aerial vehicle body is further provided with a winding mechanism. The replenishment pump is started to pump pesticide into the liquid storage tank through the loading pipe, the second replenishment pipe and the first replenishment pipe in sequence, after replenishment is completed, the loading pipe is lifted and folded through the winding mechanism, and the unmanned aerial vehicle body continues to spray the pesticide, so that the landing process of the unmanned aerial vehicle is omitted, the operation time is shortened, and the pesticide spraying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically, to a UAV hover resupply device. Background Technology

[0002] A pesticide spraying drone is a type of drone used in the agricultural field, mainly for pesticide spraying operations on crops. It consists of three parts: the aircraft, the positioning system, and the spraying device. The spraying device includes a storage tank, a spray pump, and spray heads. The storage tank is used to store pesticides, and the spray pump delivers the pesticides from the storage tank to the spray heads through pipelines, from which the pesticides are evenly sprayed.

[0003] In existing technologies, after the pesticide in the storage tank is used up, the drone needs to land, refill the storage tank, and then take off again to continue operations. For large pesticide spraying areas, the refilling process takes a long time, resulting in long operation time and low efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a drone hovering refueling device to solve the problem that after the pesticide in the storage tank is used up, the drone needs to land to refill the storage tank before taking off again, which takes a long time for refueling, especially for large pesticide spraying areas.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a drone hovering resupply device, including a drone body, two symmetrical leg supports at the bottom of the drone body, a liquid storage tank installed in the middle of the drone body, a resupply pump installed on the liquid storage tank, a resupply pipe one and a resupply pipe two respectively connected to the output end and input end of the resupply pump, the end of the resupply pipe one away from the resupply pump being connected to the top of the liquid storage tank, a winding mechanism is also provided on the drone body, the end of the resupply pipe two away from the resupply pump is connected to a load-bearing pipe through the winding mechanism, and the winding mechanism is capable of raising, lowering and retracting the load-bearing pipe.

[0006] Preferably, the winding mechanism includes a bracket, which is fixedly mounted on the main body of the drone. A rotating shaft is rotatably connected to the bracket. The end of the second replenishment tube away from the replenishment pump is fixed to the bracket. A winding and unwinding drum is fixedly fitted in the middle of the rotating shaft. A winding and unwinding tube is wound around the winding and unwinding drum. A hollow part is provided in the middle of the rotating shaft. The second replenishment tube is connected to one end of the winding and unwinding tube through the hollow part of the rotating shaft. The other end of the winding and unwinding tube is connected to the load-bearing tube. A rotary motor is also fixedly mounted on the bracket. The output end of the rotary motor is connected to one end of the rotating shaft.

[0007] Preferably, the load-bearing tube is a stainless steel tube, the unwinding tube is a rubber tube, and the lowest end of the load-bearing tube is higher than the lowest end of the leg support.

[0008] Preferably, the bottom end of the load-bearing tube is connected to a suction nozzle, and a filter screen is provided inside the suction nozzle.

[0009] Preferably, the drone body is further provided with a stabilizing mechanism, which includes a bracket. The bracket is fixedly installed at the bottom of the drone body, and a limit sleeve is fixedly installed on the bracket. The load-bearing tube is slidably inserted into the inside of the limit sleeve.

[0010] Preferably, the bottom of the limiting sleeve is provided with a guide groove, which has a frustum-shaped structure with the opening facing downwards.

[0011] Preferably, the load-bearing tube is provided with a fixing mechanism, which includes a stop, the stop being fixedly fitted on the top of the load-bearing tube, a limit rod being fixedly installed on the stop, and a double-threaded screw parallel to the limit rod being rotatably installed on the stop. Two symmetrical moving blocks are slidably sleeved on the limit rod, and the side of the moving block away from the limit rod is threadedly connected to the double-threaded screw. Positioning clips are fixedly installed at the bottom of both moving blocks.

[0012] Preferably, both ends of the double-grooved screw are fixedly connected to round buttons, and the middle of the positioning card is recessed.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses a rewinding mechanism to lower the load-bearing tube and insert it into the replenishment tank. Then, the replenishment pump is started to pump the pesticide into the storage tank through the load-bearing tube, replenishment tube two, and replenishment tube one in sequence. After replenishment is completed, the rewinding mechanism lifts up the load-bearing tube, and the drone body can continue to spray pesticides. This saves the drone's take-off and landing process, shortens the operation time, and improves the efficiency of pesticide spraying.

[0015] This invention, through the setting of a limiting sleeve and a guide groove, allows the load tube to slide into the limiting sleeve through the guide groove during lifting, and the limiting sleeve further limits the load tube, thereby preventing the load tube from shaking and improving the stability of the UAV during flight.

[0016] This invention allows two movable blocks to expand outward by turning a round knob, so that the positioning card is locked at the port of the refill box, fixing the load-bearing tube and further ensuring the stability of the load-bearing tube in absorbing pesticides, thus preventing the load-bearing tube from detaching from the refill box due to airflow. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the relevant structure of the liquid storage tank of this utility model;

[0019] Figure 3 This is a first-view schematic diagram of the relevant structure of the winding mechanism of this utility model;

[0020] Figure 4 This is a second-view schematic diagram of the relevant structure of the winding mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the nozzle and filter structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the stabilizing mechanism structure of this utility model;

[0023] Figure 7 For the present utility model Figure 2 Enlarged view of the structure of region A in the middle.

[0024] [Figure Labels]

[0025] 1. Drone body; 2. Leg support; 3. Liquid storage tank; 4. Supply pump; 5. Supply pipe one; 6. Supply pipe two; 7. Load-bearing pipe; 8. Rewinding mechanism; 81. Hanger; 82. Shaft; 83. Unwinding drum; 84. Unwinding tube; 85. Rotary motor; 9. Nozzle; 91. Filter screen; 10. Stabilizing mechanism; 101. Bracket; 102. Limiting sleeve; 103. Guide groove; 11. Fixing mechanism; 111. Stop; 112. Limiting rod; 113. Double-threaded screw; 114. Moving block; 115. Positioning clip; 116. Round button. Detailed Implementation

[0026] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0027] As attached Figure 1 To be continued Figure 7 This utility model provides a drone hovering resupply device, including a drone body 1, two symmetrical leg supports 2 at the bottom of the drone body 1, a liquid storage tank 3 installed in the middle of the drone body 1, a resupply pump 4 installed on the liquid storage tank 3, and a resupply pipe 5 and a resupply pipe 6 respectively connected to the output end and input end of the resupply pump 4. The end of the resupply pipe 5 away from the resupply pump 4 is connected to the top of the liquid storage tank 3. The drone body 1 is also provided with a winding mechanism 8. The end of the resupply pipe 6 away from the resupply pump 4 is connected to a load-bearing pipe 7 through the winding mechanism 8, and the winding mechanism 8 can raise and lower the load-bearing pipe 7.

[0028] Among them, the main body of the drone 1 has functions such as flying, spraying pesticides and hovering to meet the needs of drones to resupply pesticides in the air. This is existing technology and will not be described in detail.

[0029] Preferably, the winding mechanism 8 includes a bracket 81, which is fixedly mounted on the main body 1 of the UAV. A rotating shaft 82 is rotatably connected to the bracket 81. The end of the replenishment tube 6 away from the replenishment pump 4 is fixed to the bracket 81. A winding and unwinding drum 83 is fixedly fitted in the middle of the rotating shaft 82. A winding and unwinding tube 84 is wound on the winding and unwinding drum 83. A hollow part is provided in the middle of the rotating shaft 82. The replenishment tube 6 is connected to one end of the winding and unwinding tube 84 through the hollow part of the rotating shaft 82. The other end of the winding and unwinding tube 84 is connected to the load tube 7. A rotary motor 85 is also fixedly mounted on the bracket 81. The output end of the rotary motor 85 is connected to one end of the rotating shaft 82.

[0030] With the above-mentioned configuration, the rotating shaft 82 and the winding drum 83 are driven by the rotary motor 85 to rotate and wind up and down the winding tube 84, which can raise and lower the load tube 7. When resupply is needed, the load tube 7 is lowered to replenish pesticides. After resupply is completed, the load tube 7 is raised and retracted to prevent the load tube 7 from swinging due to airflow and affecting the balance of the UAV flight.

[0031] Preferably, the load tube 7 is a stainless steel tube with a certain weight, so that during the lifting and lowering of the load tube 7, the airflow will not cause it to swing too much, and it will be stably inserted into the replenishment box. The winding tube 84 is a rubber tube, which is wound around the winding drum 83 and maintains the connection between the replenishment tube 6 and the load tube 7. The lowest end of the load tube 7 is higher than the lowest end of the leg support 2 to prevent the load tube 7 from having an unstable effect on the take-off and landing of the UAV.

[0032] Preferably, the bottom end of the load-bearing pipe 7 is connected to a suction nozzle 9, and a filter screen 91 is installed inside the suction nozzle 9 to filter the pesticide in the replenishment tank and prevent the drone nozzle from becoming clogged.

[0033] Specifically, during the refueling process of the drone body 1, the rewinding mechanism 8 lowers the load tube 7 and inserts it into the refueling tank. Then, the refueling pump 4 is started to pump the pesticide into the storage tank 3 through the load tube 7, the second refueling tube 6, and the first refueling tube 5 in sequence. After the refueling is completed, the rewinding mechanism 8 lifts up the load tube 7 and retracts it, and the drone body 1 can continue to spray pesticides. This saves the drone take-off and landing process, shortens the operation time, and improves the efficiency of pesticide spraying.

[0034] Furthermore, the main body 1 of the drone is also provided with a stabilizing mechanism 10. The stabilizing mechanism 10 includes a bracket 101, which is fixedly installed at the bottom of the main body 1 of the drone. A limiting sleeve 102 is fixedly installed on the bracket 101. The load-bearing tube 7 can be slidably inserted into the inner side of the limiting sleeve 102. A guide groove 103 is provided at the bottom of the limiting sleeve 102. The guide groove 103 has a frustum-shaped structure with the opening facing downward.

[0035] The load tube 7 has a poor limiting effect when it is retracted, and it will still experience some unstable shaking. By setting the limiting sleeve 102 and the guide groove 103, the load tube 7 slides into the limiting sleeve 102 through the guide groove 103 when it is lifted. The limiting sleeve 102 further limits the load tube 7, thereby preventing the load tube 7 from shaking and improving the stability of the UAV during flight.

[0036] Furthermore, a fixing mechanism 11 is provided on the load-bearing tube 7. The fixing mechanism 11 includes a stop 111, which is fixedly fitted on the top of the load-bearing tube 7. A limit rod 112 is fixedly installed on the stop 111, and a double-threaded screw 113 parallel to the limit rod 112 is rotatably installed on the stop 111. Two symmetrical moving blocks 114 are slidably sleeved on the limit rod 112. The side of the moving block 114 away from the limit rod 112 is threadedly connected to the double-threaded screw 113. A positioning card 115 is fixedly installed at the bottom of each of the two moving blocks 114. A round button 116 is fixedly connected to both ends of the double-threaded screw 113. The middle part of the positioning card 115 is concave.

[0037] The round button 116 has symmetrical threads on its surface. The limiting rod 112 limits the movement of the moving block 114, ensuring that the moving block 114 moves in a straight line. During the hovering refill process, by turning the round button 116, the two moving blocks 114 can expand outward, so that the positioning card 115 is locked at the port of the refill box, fixing the load tube 7, further ensuring the stability of the load tube 7 in absorbing pesticides, and preventing the load tube 7 from falling out of the refill box due to airflow.

[0038] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0039] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0040] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drone hovering resupply device, comprising a drone body (1), wherein two symmetrical leg supports (2) are provided at the bottom of the drone body (1), and a liquid storage tank (3) is installed in the middle of the drone body (1), characterized in that, A replenishment pump (4) is installed on the liquid storage tank (3). The output end and input end of the replenishment pump (4) are respectively connected to a replenishment pipe one (5) and a replenishment pipe two (6). The end of the replenishment pipe one (5) away from the replenishment pump (4) is connected to the top of the liquid storage tank (3). A winding mechanism (8) is also provided on the main body of the drone (1). The end of the replenishment pipe two (6) away from the replenishment pump (4) is connected to a load pipe (7) through the winding mechanism (8). The winding mechanism (8) can lift and retract the load pipe (7).

2. The UAV hovering resupply device according to claim 1, characterized in that, The winding mechanism (8) includes a bracket (81), which is fixedly installed on the main body (1) of the UAV. A rotating shaft (82) is rotatably connected to the bracket (81). The end of the supplement tube (6) away from the supply pump (4) is fixed on the bracket (81). A winding and unwinding drum (83) is fixedly fitted in the middle of the rotating shaft (82). A winding and unwinding tube (84) is wound on the winding and unwinding drum (83). A hollow part is provided in the middle of the rotating shaft (82). The supplement tube (6) is connected to one end of the winding and unwinding tube (84) through the hollow part of the rotating shaft (82). The other end of the winding and unwinding tube (84) is connected to the load tube (7). A rotary motor (85) is also fixedly installed on the bracket (81). The output end of the rotary motor (85) is connected to one end of the rotating shaft (82).

3. The UAV hovering resupply device according to claim 2, characterized in that, The load-bearing tube (7) is a stainless steel tube, the unwinding tube (84) is a rubber tube, and the lowest end of the load-bearing tube (7) is higher than the lowest end of the leg support (2).

4. The UAV hovering resupply device according to claim 1, characterized in that, The bottom end of the load-bearing tube (7) is connected to a suction nozzle (9), and a filter screen (91) is provided inside the suction nozzle (9).

5. The UAV hover resupply device according to claim 1, characterized in that, The main body (1) of the drone is also provided with a stabilizing mechanism (10). The stabilizing mechanism (10) includes a bracket (101). The bracket (101) is fixedly installed at the bottom of the main body (1) of the drone. A limiting sleeve (102) is fixedly installed on the bracket (101). The load-bearing tube (7) can be slidably inserted into the inside of the limiting sleeve (102).

6. The UAV hovering resupply device according to claim 5, characterized in that, The bottom of the limiting sleeve (102) is provided with a guide groove (103), which is a frustum-shaped structure with an opening facing downwards.

7. The UAV hovering resupply device according to claim 1, characterized in that, A fixing mechanism (11) is provided on the load-bearing tube (7). The fixing mechanism (11) includes a baffle (111). The baffle (111) is fixedly fitted on the top of the load-bearing tube (7). A limit rod (112) is fixedly installed on the baffle (111). A double-threaded screw (113) parallel to the limit rod (112) is also rotatably installed on the baffle (111). Two symmetrical moving blocks (114) are slidably sleeved on the limit rod (112). The side of the moving block (114) away from the limit rod (112) is threadedly connected to the double-threaded screw (113). A positioning card (115) is fixedly installed at the bottom of both moving blocks (114).

8. The UAV hovering resupply device according to claim 7, characterized in that, Both ends of the double-grooved screw (113) are fixedly connected to round buttons (116), and the middle of the positioning card (115) is concave.

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