A pump-suction water sample collection device mounted on a drone

Abstract

The present invention discloses a pump-suction water sample collection device, comprising a dual-axis stepper motor, a synchronous pulley, a synchronous belt, a driven bevel gear, a driving bevel gear, a connecting shaft, a bevel gear fixing frame, a bottom plate, a rack guide rail, a rack, a gear fixing frame, a gear, an incomplete gear guide ring, a solenoid valve, a solenoid valve fixing frame, a peristaltic pump fixing seat, a peristaltic pump, a rotary joint fixing seat, a rotary joint, a rotating drum, a water pipe joint, and a motor mounting seat. The two ends of the dual-axis stepper motor are respectively connected to the rotating drum and the synchronous pulley. A hose is wound around the rotating drum, and the hose is put into the water by the rotation of the motor, and then the peristaltic pump and the solenoid valve are started to collect water samples. The present invention includes a hose winding mechanism, which can evenly wind the water pipe around the drum through a guide ring. The present invention can be carried on an unmanned ship or an unmanned aerial vehicle to automatically collect water samples in a complex environment, thereby improving the collection efficiency and reducing the risk during collection.

Description

Technical Field

[0001] The present invention relates to the technical field of water sample collection, and in particular to a pump-suction water sample collection device mounted on an unmanned aerial vehicle. Background Art

[0002] At present, drone water sampling devices are widely used in water quality monitoring of rivers and lakes, but the water sampling devices currently on the market lack a mechanism for collecting water pipes, which can easily cause unstable effects during the water sampling process, resulting in reduced accuracy. The patent with publication number CN105842009A currently discloses a "water quality monitoring drone water sampling device", which realizes the automatic collection of water samples in lakes by setting a water sampling device under the drone, and no longer requires staff to take a boat to collect water samples, effectively reducing the labor intensity of staff and bringing convenience to lake water sampling; but it has some shortcomings in practical application, such as: it does not solve the problem of retracting and releasing the water pipe, and the water pipe is not rinsed when multiple samplings are performed, which can easily cause water samples to be mixed, resulting in reduced accuracy. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a pump-suction water sample collection device mounted on a drone, which is used to solve the problems mentioned in the background technology.

[0004] The present invention adopts the following technical solutions:

[0005] A pump-suction water sample collection device mounted on a drone, comprising a dual-axis stepping motor 1, a synchronous pulley A2, a synchronous belt A3, a driven bevel gear 4, a synchronous pulley B5, an active bevel gear 6, a bevel gear fixing frame 7, a bottom plate 8, a synchronous pulley C9, a synchronous belt B10, a rack guide 11, a rack 12, a synchronous pulley D13, a gear fixing frame 14, a driving gear 15, a driven gear A16, a driven gear B17, an incomplete gear A18, an incomplete gear B19, a guide ring 20, a water sample collection bottle 21, a hard tube 22, a solenoid valve A23, a solenoid valve B24, a solenoid valve fixing frame 25, a peristaltic pump fixing seat 26, a peristaltic pump 27, a rotary joint fixing Fixed seat 28, rotary joint 29, rotating drum 30, water pipe joint 31, hose 32 and motor mounting seat 33; both ends of the dual-axis stepping motor 1 are respectively connected to the synchronous pulley A2 and the rotating drum 30; the synchronous pulley A2 transmits power to the synchronous pulley B5 through the synchronous belt A3, the driving bevel gear 6 is connected to the synchronous pulley B5 through the connecting shaft, the driven bevel gear 4 and the synchronous pulley C9 are connected through the connecting shaft, and the two are installed on their respective bevel gear fixing frames 7, the bevel gear fixing frame 7 is welded to the bottom plate 8, the driven bevel gear 4 and the driving bevel gear 6 are meshed to realize the transmission of power; the synchronous pulley C9 forms a synchronous belt transmission with the synchronous pulley D13 through the synchronous belt B10.

[0006] The synchronous pulley D13, the driving gear 15, the driven gear A16, the driven gear B17, the incomplete gear A18, and the incomplete gear B19 in the present invention are installed on the gear fixing frame 14, and the gear fixing frame 14 is welded to the bottom plate 8. The synchronous pulley D13 and the driving gear 15 are coaxially connected and fixed, the incomplete gear A18 and the driven gear A16 are coaxially connected and fixed, and the driven gear B17 and the incomplete gear B19 are coaxially connected and fixed. The synchronous pulley D13 drives the driving gear 15 to rotate, and the upper part of the driving gear 15 is meshed with the driven gear A16. The lower part of the wheel 15 is meshed with the driven gear B17. When the driving gear 15 rotates, the driven gear A16 and the driven gear B17 are driven to rotate together. The incomplete gear A18 and the incomplete gear B19 are respectively meshed with the upper tooth surface and the lower tooth surface of the rack 12. The rack 12 is installed on two rack guides 11. The rack guides 11 are welded to the bottom plate 8 to provide a guide for the rack 12. A guide ring 20 is welded to the side of the rack 12. The hose 32 wound on the drum 30 passes through the guide ring 20 and naturally hangs down through the hole of the bottom plate 8. An impurity filter is connected to the lower part.

[0007] The dual-axis stepper motor 1 in the present invention is fixed by four screw holes on the motor mounting seat 33, and the motor mounting seat 33 is fixed to the bottom plate 8 by screw connection; the two sides of the rotating drum 30 are respectively connected to the dual-axis stepper motor 1 and the rotating joint 29, a hose 32 is wrapped around the middle of the rotating drum 30, one end of the hose 32 is lowered, and the other end is connected to the water pipe joint 31, the water pipe joint 31 is connected to the water inlet of the rotating joint 29, and the water outlet of the rotating joint 29 is connected to the water inlet of the peristaltic pump 27 using a hard pipe 22, and the peristaltic pump 27 It is fixed through four screw holes on the peristaltic pump fixing base 26, and the peristaltic pump fixing base 26 is fixed on the base plate 8 by screw connection; the water outlet of the peristaltic pump 27 is respectively connected to the water inlet of the solenoid valve A23 and the solenoid valve B24, and the water outlet of the solenoid valve A23 is connected to the bottom to rinse the pipeline and drain the original liquid in it. The water outlet of the solenoid valve B24 is connected to the inside of the water sample collection bottle 21 to store the collected water samples in the bottle. The above water pipe connection method mainly adopts a hard pipe 22 and a water pipe joint 31.

[0008] The dual-axis stepper motor 1 of the present invention has an output shaft at each end, and the output speeds at both ends are kept consistent. The synchronous pulley A2 and the rotating drum 30 connected to the two shafts have the same speed; the bevel gear fixing frame 7 adopts a base plus two fixing columns, holes are provided on the fixing columns for shaft connection, a synchronous pulley is installed in the middle of the two plates, and a bevel gear is installed on one side; the end face modules of the driven bevel gear 4 and the driving bevel gear 6 are equal, and the pressure angles of the two gears are equal; the gear fixing frame 14 adopts a base plus three fixing columns, holes are provided on the fixing columns for shaft connection, wherein the driving gear 15 , the driven gear A16 and the driven gear B17 are installed in the same plane, the driving gear 15, the driven gear A16 is installed on the upper part of the driving gear 15 and meshes with it, the driven gear B17 is installed on the lower part of the driving gear 15 and meshes with it, when the synchronous pulley D13 drives the driving gear 15 to rotate, the driven gear A16 and the driven gear B17 rotate in opposite directions, the incomplete gear A18 is connected to the driven gear A16, and the incomplete gear B19 is connected to the driven gear B17, so the incomplete gear A18 and the incomplete gear B19 rotate in opposite directions.

[0009] The incomplete gear A18, the incomplete gear B19 and the rack 12 in the present invention have the same tooth shape and module. The upper tooth surface of the rack 12 meshes with the incomplete gear A18, and the lower tooth surface of the rack 12 meshes with the incomplete gear B19. The two ends of the rack 12 are square and can pass through the square holes of the rack guide 11. The rack guides 11 on both sides provide guidance for the rack 12. The rotation of the incomplete gear A18 and the incomplete gear B19 pushes the rack 12 to the left and right respectively, thereby realizing the reciprocating motion of the rack 12; a guide ring 20 is welded on the side of the rack 12, and its function is to push the hose 32 to be wound when the drum 30 rotates; the transmission ratio between the gears must ensure that the reciprocating motion of the rack 12 has a suitable speed, which can make the hose 32 evenly and tightly wound multiple times on the drum 30.

[0010] The rotating drum 30 in the present invention is cylindrical as a whole, and the middle section is thicker for winding and placing the hose 32. When the rotating drum 30 rotates forward, the bottom of the hose 32 is used for water sample collection. When the rotating drum 30 is reversed, the hose 32 is wound and stored with the assistance of the guide ring 20. The middle section is hollow inside, and the two ends of the rotating drum 30 are thinner and have holes, one of which is a through hole for fixing with the water inlet of the rotating joint 29. The hose 32 is connected to the water inlet of the rotating joint 29 through the water pipe joint 31, and the hole at the other end of the rotating drum 30 is used for matching and connecting with the shaft of the dual-axis stepping motor 1; the rotating joint 29 is divided into two ends, the water inlet and the water outlet, and the two ends of the rotating joint 29 are allowed to rotate relative to each other during operation. The rotating joint 29 in the present invention The water inlet end is connected to the rotating drum 30 and rotates simultaneously with the rotating drum 30. The water outlet end of the rotary joint 29 is fixed to the rotary joint fixing seat 28 and remains stationary during operation. The peristaltic pump 27 is fixed on the L-shaped peristaltic pump fixing seat 26. The water inlet of the peristaltic pump 27 is connected to the water outlet of the rotary joint 29 through a hard pipe 22. The water outlet of the peristaltic pump 27 is connected to the water inlet of the solenoid valve A23 and the solenoid valve B24. The solenoid valve A23 is fixed on the bottom plate, and the solenoid valve B24 is fixed on the solenoid valve fixing frame 25. The solenoid valve fixing frame 25 is C-shaped and fixed to the bottom plate 8 by screws. The water sample collecting bottle 21 is fixed on the bottom plate 8, and is used to collect water samples flowing through the solenoid valve B24.

[0011] Beneficial effects: The pump-suction water sample collection device of the present invention adopts a method of lowering a hose to a fixed depth to absorb water. Compared with other similar devices, a hose winding auxiliary mechanism is added to ensure the stability of the hose lowering and recovery process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the overall structure of the pump-suction water sample collection device in an embodiment of the present invention.

[0013] Figure 2 Schematic diagram of the structure of the hose winding auxiliary mechanism in an embodiment of the present invention.

[0014] Figure 3 Schematic diagram of the structure of the pumping device in an embodiment of the present invention.

[0015] In the figure: 1. double-axis stepper motor; 2. synchronous pulley A; 3. synchronous belt A; 4. driven bevel gear; 5. synchronous pulley B; 6. driving bevel gear; 7. bevel gear fixing frame; 8. bottom plate; 9. synchronous pulley C; 10. synchronous belt B; 11. rack guide; 12. rack; 13. synchronous pulley D; 14. gear fixing frame; 15. driving gear; 16. driven gear A; 17. driven gear B; 18. incomplete gear A; 19. incomplete gear B; 20. guide ring; 21. water sample collection bottle; 22. hard pipe; 23. solenoid valve A; 24. solenoid valve B; 25. solenoid valve fixing frame; 26. peristaltic pump fixing seat; 27. peristaltic pump; 28. swivel joint fixing seat; 29. ​​swivel joint; 30. drum; 31. water pipe joint; 32. hose; 33. motor mounting seat. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0017] A pump-suction water sample collection device mounted on an unmanned aerial vehicle comprises a dual-axis stepping motor 1, a synchronous pulley A2, a synchronous belt A3, a driven bevel gear 4, a synchronous pulley B5, a driving bevel gear 6, a bevel gear fixing frame 7, a bottom plate 8, a synchronous pulley C9, a synchronous belt B10, a rack guide rail 11, a rack 12, a synchronous pulley D13, a gear fixing frame 14, a driving gear 15, a driven gear A16, a driven gear B17, an incomplete gear A18, an incomplete gear B19, a guide ring 20, a water sample collection bottle 21, a hard pipe 22, a solenoid valve A23, a solenoid valve B24, a solenoid valve fixing frame 25, a peristaltic pump fixing seat 26, a peristaltic pump 27, a rotary joint fixing seat 28, a rotary joint 29, a rotating drum 30, a water pipe joint 31, a hose 32 and a motor mounting seat 33.

[0018] The pump-suction water sample collection device is mounted on a UAV platform, and the UAV is controlled by ground staff to fly to the sampling point.

[0019] The staff sends a signal to start the water extraction operation, the dual-axis stepper motor 1 starts to rotate, and the rotating drum 30 and the synchronous pulley A2 matched with the two axes of the dual-axis stepper motor 1 rotate together. At this time, the hose 32 originally evenly wound on the rotating drum 30 will begin to be lowered.

[0020] The synchronous pulley A2 drives the synchronous belt B10 to rotate through the synchronous belt A3, and the driving bevel gear 6 coaxial with the synchronous belt B10 rotates accordingly; the driving bevel gear 6 drives the meshing driven bevel gear 4 to rotate, and the synchronous pulley C9 coaxial with the driven bevel gear 4 rotates accordingly; the synchronous pulley C9 drives the synchronous pulley D13 to rotate through the synchronous belt B10, and the driving gear 15 coaxial with the synchronous pulley D13 rotates accordingly; the driving gear 15 drives the meshing driven gears A16 and B17 to rotate, and their rotation directions are opposite, and the incomplete gears A18 and B19 coaxial with them will also rotate in different directions.

[0021] During the lowering process of the drum 30, the incomplete gear A18 and the incomplete gear A18 will mesh with the rack 12 in turn; when the incomplete gear A18 meshes with the rack 12, the rack 12 slowly moves to the left; when the incomplete gear B19 meshes with the rack 12, the rack 12 slowly moves to the right; the guide ring 20 moves synchronously with the rack 12, and after the multi-layer hose 32 wound on the drum 30 is stably lowered to the required depth, the dual-axis stepper motor 1 stops rotating.

[0022] The water sample collection operation begins, the peristaltic pump 27 and the solenoid valve A23 are powered on, and the water passes through the hose 32, the rotary joint 29, the peristaltic pump 27, the solenoid valve A23 in sequence, and is finally discharged, thereby completing the rinsing of the water pipe, removing the original impurities in the water pipe, and improving the accuracy of water sample collection.

[0023] After rinsing for a few seconds, the solenoid valve A23 is closed, the solenoid valve B24 is started, and the water passes through the hose 32, the rotary joint 29, the peristaltic pump 27, the solenoid valve B24 in sequence, and finally flows to the water sample collection bottle 21.

[0024] When the collection target is reached, the peristaltic pump 27 and the solenoid valve B24 stop operating, the dual-axis stepper motor 1 starts to reverse, and the rotating drum 30 and the synchronous pulley A2 matched with the two axes of the dual-axis stepper motor 1 rotate together. The specific operation process is the same as described above. The final effect is to evenly wrap the hose 32 around the rotating drum 30 in multiple layers.

[0025] The above is only the most effective implementation scheme of the present invention. It should be pointed out that for ordinary technicians in this technical field, appropriate improvements and modifications can be made without departing from the working principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pump-type water sample collection device, Features: It includes a dual-axis stepper motor (1), a synchronous pulley A (2), a synchronous belt A (3), a driven bevel gear (4), a synchronous pulley B (5), a driving bevel gear (6), a bevel gear fixing frame (7), a bottom plate (8), a synchronous pulley C (9), a synchronous belt B (10), a rack guide rail (11), a rack (12), a synchronous pulley D (13), a gear fixing frame (14), a driving gear (15), a driven gear A (16), a driven gear B (17), an incomplete gear A (18), an incomplete gear B (19), a guide ring (20), a water sample collection bottle (21), a hard tube (22), a solenoid valve A (23), a solenoid valve B (24), a solenoid valve fixing frame (25), a peristaltic pump fixing seat ( 26), a peristaltic pump (27), a rotary joint fixing seat (28), a rotary joint (29), a rotating drum (30), a water pipe joint (31), a hose (32) and a motor mounting seat (33); the two ends of the dual-axis stepping motor (1) are respectively connected to the synchronous pulley A (2) and the rotating drum (30); the synchronous pulley A (2) transmits power to the synchronous pulley B (5) through the synchronous belt A (3); the driving bevel gear (6) is connected to the synchronous pulley B (5) through a connecting shaft; the driven bevel gear (4) and the synchronous pulley C (9) are connected through a connecting shaft and are installed on their respective bevel gear fixing frames (7); the bevel gear fixing frame (7) is welded to the bottom plate (8); the driven bevel gear (4) and the driving bevel gear (6) are meshed with each other, The synchronous pulley C (9) is connected to the synchronous pulley D (13) through the synchronous belt B (10) to form a synchronous belt transmission; the synchronous pulley D (13), the driving gear (15), the driven gear A (16), the driven gear B (17), the incomplete gear A (18), and the incomplete gear B (19) are installed on the gear fixing frame (14), and the gear fixing frame (14) is welded to the bottom plate (8). The synchronous pulley D (13) and the driving gear (15) are coaxially connected and fixed, the incomplete gear A (18) and the driven gear A (16) are coaxially connected and fixed, and the driven gear B (17) and the incomplete gear B (19) are coaxially connected and fixed. The synchronous pulley D (13) drives the driving gear (15) to rotate. The upper part of the driven gear (15) meshes with the driven gear A (16), and the lower part of the driving gear (15) meshes with the driven gear B (17). When the driving gear (15) rotates, the driven gear A (16) and the driven gear B (17) are driven to rotate together. The incomplete gear A (18) and the incomplete gear B (19) respectively mesh with the upper tooth surface and the lower tooth surface of the rack (12). The rack (12) is installed on two rack guide rails (11). The rack guide rails (11) are welded to the bottom plate (8) to provide a guide for the rack (12). A guide ring (20) is welded on the side of the rack (12). The hose (32) wound on the rotating drum (30) passes through the guide ring (20) and hangs down from the hole on the bottom plate (8).The dual-axis stepper motor (1) is fixed through four screw holes on the motor mounting seat (33), and the motor mounting seat (33) is fixed to the bottom plate (8) through screw connection; the two sides of the rotating drum (30) are respectively connected to the dual-axis stepper motor (1) and the rotating joint (29), a hose (32) is wrapped around the middle of the rotating drum (30), one end of the hose (32) is lowered, and the other end is connected to the water pipe joint (31), the water pipe joint (31) is connected to the water inlet of the rotating joint (29), the water outlet of the rotating joint (29) is connected to the water inlet of the peristaltic pump (27) through a hard pipe (22), and the peristaltic pump ( 27) is fixed through four screw holes on the peristaltic pump fixing base (26), and the peristaltic pump fixing base (26) is fixed on the bottom plate (8) by screw connection; the water outlet of the peristaltic pump (27) is respectively connected to the water inlet of the electromagnetic valve A (23) and the electromagnetic valve B (24), and the water outlet of the electromagnetic valve A (23) is connected to the bottom to rinse the pipeline and discharge the original liquid in the pipeline, and the water outlet of the electromagnetic valve B (24) is connected to the inside of the water sample collection bottle (21) to store the collected water sample in the bottle. The above water pipe connection method mainly adopts a combination of a hard pipe (22) and a water pipe joint (31); The dual-axis stepper motor (1) has an output shaft at each end, and the output speeds at the two ends are consistent. The synchronous pulley A (2) and the rotating drum (30) connected to the two shafts have the same speed; the bevel gear fixing frame (7) adopts a base plus two fixing columns design, holes are provided on the fixing columns for shaft connection, a synchronous pulley B (5) is installed in the middle of the two plates, and a bevel gear is installed on one side; the end face modules of the driven bevel gear (4) and the driving bevel gear (6) are equal, and the pressure angles of the two gears are equal; the gear fixing frame (14) adopts a base plus three fixing columns design, and the fixing columns are fixed. A hole is provided on the fixed column for shaft connection, wherein the driving gear (15), the driven gear A (16) and the driven gear B (17) are installed in the same plane, the driving gear (15) and the driven gear A (16) are installed on the upper part of the driving gear (15) and meshed therewith, and the driven gear B (17) is installed on the lower part of the driving gear (15) and meshed therewith. When the synchronous pulley D (13) drives the driving gear (15) to rotate, the rotation directions of the driven gear A (16) and the driven gear B (17) remain opposite, and the incomplete gear A (18) and the driven gear A (17) are in opposite directions. 6), the incomplete gear B (19) is connected to the driven gear B (17), so the incomplete gear A (18) and the incomplete gear B (19) maintain opposite rotation directions; the incomplete gear A (18), the incomplete gear B (19) and the rack (12) have the same tooth shape and module, the upper tooth surface of the rack (12) is meshed with the incomplete gear A (18), and the lower tooth surface of the rack (12) is meshed with the incomplete gear B (19), and the two ends of the rack (12) are square and can pass through the square hole of the rack guide rail (11), and the rack guide rails on both sides are The rail (11) provides a guide for the rack (12), and the rotation of the incomplete gear A (18) and the incomplete gear B (19) pushes the rack (12) to the left and right respectively, thereby realizing the reciprocating motion of the rack (12); a guide ring (20) is welded on the side of the rack (12), and its function is to push the hose (32) to be wound when the drum (30) rotates; the transmission ratio between the gears must ensure that the reciprocating motion of the rack (12) has a suitable speed, and the speed can make the hose (32) evenly and tightly wound multiple times on the drum (30); The rotating drum (30) is cylindrical in shape as a whole, and the middle section is relatively thick for winding and placing the hose (32). When the rotating drum (30) rotates forward, the bottom of the hose (32) is used for water sample collection. When the rotating drum (30) rotates reversely, the hose (32) is wound and stored with the assistance of the guide ring (20). The middle section is hollow inside. The two ends of the rotating drum (30) are relatively thin and have holes, one of which is a through hole for fixing with the water inlet of the rotating joint (29). The hose (32) is connected to the water inlet of the rotating joint (29) through the water pipe joint (31). The hole at the other end of the rotating drum (30) is used for matching and connecting with the shaft of the double-axis stepping motor (1); the rotating joint (29) is divided into two ends, the water inlet and the water outlet. The two ends of the rotating joint (29) are allowed to rotate relative to each other during operation. The water inlet end of the rotating joint (29) and the rotating drum (29) are connected to each other. The peristaltic pump (27) is connected to the rotating drum (30) and rotates simultaneously with the rotating drum (30). The water outlet end of the rotating joint (29) and the rotating joint fixing seat (28) are fixed and remain stationary during operation. The peristaltic pump (27) is fixed to the L-shaped peristaltic pump fixing seat (26). The water inlet of the peristaltic pump (27) and the water outlet of the rotating joint (29) are connected through a hard pipe (22). The water outlet of the peristaltic pump (27) is connected to the water inlets of the electromagnetic valve A (23) and the electromagnetic valve B (24). The electromagnetic valve A (23) is fixed to the bottom plate, and the electromagnetic valve B (24) is fixed to the electromagnetic valve fixing frame (25). The electromagnetic valve fixing frame (25) is C-shaped and fixed to the bottom plate (8) by screw connection. The water sample collecting bottle (21) is fixed to the bottom plate (8) and is used to collect water samples flowing through the electromagnetic valve B (24).

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