An airtight device for sampling brine from a salt lake based on a drone

Abstract

The present invention discloses a self-sealing device for sampling salt lake brine based on an unmanned aerial vehicle, which comprises an unmanned aerial vehicle body and a self-sealing device. The self-sealing device includes an upper bottle cap, a middle bottle cap, a lower bottle cap, a bottle body, a bottle bottom and a piston body used for sealing after water sampling. The middle bottle cap is a circular gasket, and in the middle part of the radius of the circular gasket, there is a liquid level detection metal rod that is vertically penetrated and tightly insulated. During the process of sampling lake water based on the unmanned aerial vehicle in the present invention, automatic sampling of lake water can be realized, and the sampled sample can be self-sealed, avoiding the situation of sample tilting and overflowing during the flight of the unmanned aerial vehicle, increasing the stability and tightness of lake water sampling. The structure is simple and the cost is low. Except for using a relay in the power-on instantaneous detection module, no other sensors and the radio signal transmitting devices supporting them are used, and the number of sampling self-sealing devices that can be hung by the unmanned aerial vehicle body can be increased to achieve the effect of completing multi-point independent sampling in one flight.

Description

Technical Field

[0001] The invention belongs to the technical field of salt lake brine sampling, and particularly relates to a salt lake brine sampling self-sealing device based on an unmanned aerial vehicle. Background Art

[0002] Before lithium extraction from salt lakes, brine samples need to be collected from the salt lakes for inspection. In the past, people had to go to the lakeside manually and then take a boat to collect brine samples from different areas of the lake for inspection, which was time-consuming and laborious. In addition, since most salt lakes are located in high-altitude areas with complex road environments, manual sampling is not conducive to production safety. Therefore, drones equipped with sampling devices are used for sampling.

[0003] For example, a drone multi-point same-depth water quality sampling device with publication number CN116735264B.

[0004] In the above patent, the sampling bottle drives the end cover to seal the water inlet pipe by rising the floating plate. However, when the drone is driving, the water in the sampling bottle will shake, thereby driving the floating plate to float, causing the end cover to shift slightly, causing excess water to flow in or the water in the bottle to be discharged, affecting the amount of water sampled. In addition, each time the drone flies, it can only sample once at one sampling point. For this reason, we propose a self-sealing device for sampling salt lake brine based on a drone. Summary of the invention

[0005] The purpose of the present invention is to provide a self-sealing device for sampling salt lake brine based on an unmanned aerial vehicle to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-sealing device for sampling brine from a salt lake based on a drone, comprising a drone body and a self-sealing device, wherein the self-sealing device comprises an upper bottle cap, a middle bottle cap, a lower bottle cap, a bottle body, a bottle bottom and a piston body for sealing after taking water;

[0007] The middle part of the bottle cap is a circular gasket, and the middle part of the radius of the circular gasket is provided with a liquid level detection metal rod which is insulated and plugged and passes through the top and bottom.

[0008] The piston body also includes a bottom sealing sleeve and a sealing ring body, a piston ring body, a piston ring sealing ring, a reset piece, a metal rod and a wedge-shaped locking hole;

[0009] The upper part of the bottle cap and the middle part of the bottle cap form a shell structure, and the shell structure is internally provided with a tongue-shaped latch, a locking pin, an attraction electromagnet, a stabilizing bracket and a reset spring for resetting the tongue-shaped latch;

[0010] The bottle bottom comprises an inner middle water intake cylinder and a weight patch arranged on the outer surface;

[0011] A water inlet grid is provided on the side of the water intake cylinder;

[0012] The bottom of the unmanned aerial vehicle body is equipped with a water intake pod.

[0013] Preferably, the bottom sealing sleeve is a cylindrical cavity with an opening at the bottom, the center of the upper circle of the cylindrical cavity is welded to the metal rod, and a sealing ring body is installed at the cylindrical opening at the bottom of the cylindrical cavity.

[0014] Preferably, the middle part of the piston body is connected to the piston ring body by welding with a metal rod, a piston ring sealing ring is attached to the outer surface of the piston ring body, and a wedge-shaped locking hole is opened on the surface of the metal rod and located above the piston ring body.

[0015] Preferably, a hole is provided in the middle portion of the tongue-shaped latch, and the rear portion of the tongue-shaped latch is in the shape of a protruding disc.

[0016] Preferably, the attraction electromagnet is connected to the external line introduction "+" terminal through one end of a single-core wire, and the other end of the attraction electromagnet is connected to a metal welding point connected to a metal reed sheet. The liquid level detection metal rod is connected to the external line introduction "-" terminal through one end of a single-core wire, and the other end of the liquid level detection metal rod extends into the bottle body.

[0017] Preferably, a water intake pod is mounted at the bottom of the unmanned aerial vehicle body, and the water intake pod includes an internally arranged hanging rope, a power-on instantaneous motion detection device, and an electric winch with an independently mounted self-sealing device.

[0018] Preferably, a circular hole is opened in the middle of the top of the upper part of the bottle cap, a sleeve is arranged in the circular hole, and a passage for the metal rod to enter and exit is formed between the two.

[0019] Preferably, a small hole for installing a fastening screw is opened on the outer edge of the bottom outer ring of the upper part of the bottle cap, a metal spring is fixed to the outer surface of the top of the upper part of the bottle cap, and a metal welding point connected to the metal spring is provided on the upper surface of the bottle cap.

[0020] Preferably, a lifting ear is welded on the outer side of the lower part of the bottle cap, the upper and lower parts of the bottle body are provided with external threads, and ventilation holes are opened around the middle part of the bottle body.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The present invention can realize automatic sampling of lake water based on the process of sampling lake water by drone, and self-seal the samples after sampling to avoid the situation that the samples tilt and overflow during the driving of the drone, increase the stability and sealing of lake water sampling, and has a simple structure and low cost. Except for the use of relays in the power-on instantaneous detection module, no other sensors and matching radio signal transmitting devices are used, and the drone body can increase the number of suspended sampling self-sealing devices to achieve the effect of completing multi-point independent sampling in one flight.

[0023] (2) The present invention combines an unmanned aerial vehicle body, a water intake pod, a hanging rope and an electric winch. The size of the water intake pod can be adjusted according to the size and load of the unmanned aerial vehicle body, and the number of suspended self-sealing devices can be changed. Adjacent self-sealing devices can maintain a suitable sampling distance, so that the unmanned aerial vehicle can sample different lake waters at the same location at the same time, reducing the trouble of the unmanned aerial vehicle's round trip. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the brine sampling device of the unmanned aerial vehicle of the present invention;

[0025] Figure 2 For the present invention Figure 1 A schematic diagram of the structure of the self-sealing device;

[0026] Figure 3 For the present invention Figure 2 Exploded view of the Zhongzi sealing device;

[0027] Figure 4 For the present invention Figure 3 A schematic diagram of the internal top view structure of the lower part of the middle bottle cap;

[0028] Figure 5 It is a structural schematic diagram of the self-sealing device before water intake of the present invention;

[0029] Figure 6 This is a schematic structural diagram of the self-sealing device after water intake of the present invention;

[0030] Figure 7 is a circuit diagram of the present invention;

[0031] In the figure: 1. upper part of bottle cap; 2. metal spring; 3. lower part of bottle cap; 4. lifting ear; 5. sleeve; 6. metal welding point; 7. middle part of bottle cap; 8. fixing sleeve; 9. liquid level detection metal rod; 11. reset piece; 12. metal rod; 13. supporting connecting rod; 14. wedge-shaped locking hole; 15. piston ring body; 16. piston ring sealing ring; 17. sealing sleeve; 18. sealing ring body; 19. piston body; 20. bottle body; 21. vent hole; 22. bottle bottom; 23. water cylinder; 24. water inlet grille; 25. counterweight patch; 26. tongue-shaped latch; 27. locking pin; 28. reset spring; 29. ​​suction electromagnet; 30. stable bracket; 31. single-core wire; 32. liquid level surface; 33. unmanned vehicle body; 34. hanging rope; 35. water intake pod; 36. power-on instantaneous detection device. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1

[0034] See also Figure 1 - Figure 4 The present invention provides a technical solution: a self-sealing device for sampling salt lake brine based on a drone, comprising a drone body 33 and a self-sealing device, the self-sealing device comprising a bottle cap upper part 1, a bottle cap middle part 7, a bottle cap lower part 3, a bottle body 20, a bottle bottom 22 and a piston body 19 for sealing after taking water, a circular hole is opened in the middle of the bottle cap middle part 7, and is connected to a fixed sleeve 8 to form a channel for the metal rod 12 to enter and exit, the bottle cap lower part 3 is a metal ring, the inner ring has an internal thread interface, which is used to fasten the external thread interface of the bottle body 20, and the concentric ring edge of the bottle cap lower part 3 has a small hole for fastening screws, which is used to connect the bottle cap upper part 1 and the bottle cap middle part 7;

[0035] The middle part 7 of the bottle cap is a circular gasket, and the middle part of the circular gasket radius is provided with a liquid level detection metal rod 9 which is through-and-through and has been treated with insulation plugging, and is used to conduct power after the liquid level contacts the liquid level detection metal rod 9;

[0036] The piston body 19 further comprises a bottom sealing sleeve 17 and a sealing ring body 18, a piston ring body 15, a piston ring sealing ring 16, a reset member 11, a metal rod 12 and a wedge-shaped locking hole 14;

[0037] The upper part 1 of the bottle cap and the middle part 7 of the bottle cap are composed of a shell structure, and a tongue-shaped latch 26, a locking pin 27, an attraction electromagnet 29, a stabilizing bracket 30 and a reset spring 28 for resetting the tongue-shaped latch 26 are arranged inside the shell structure;

[0038] The bottle bottom 22 includes an inner middle water intake cylinder 23 and a weight patch 25 arranged on the outer surface;

[0039] A water inlet grille 24 is provided on the side of the water intake cylinder 23;

[0040] A water intake pod 35 is mounted on the bottom of the drone body 33 .

[0041] In this embodiment, preferably, the bottom sealing sleeve 17 is a cylindrical cavity with an opening at the bottom, the center of the upper circle of the cylindrical cavity is welded to the metal rod 12, and a sealing ring body 18 is installed at the cylindrical opening at the bottom of the cylindrical cavity to block the vent hole 21 when water is taken out.

[0042] In this embodiment, preferably, the middle part of the piston body 19 is welded to the piston ring body 15 by a metal rod 12, and a plurality of supporting connecting rods 13 are arranged circumferentially between the piston ring body 15 and the metal rod 12. The connecting metal rod 12 is used as the base of the reset member 11, and a piston ring sealing ring 16 is attached to the outer surface of the piston ring body 15. A wedge-shaped locking hole 14 is opened on the surface of the metal rod 12 and is located above the piston ring body 15, which is used for locking and fixing the tongue-type latch 26.

[0043] In this embodiment, preferably, a hole is provided in the middle of the tongue-shaped latch 26 for installing the locking pin 27, and the rear portion of the tongue-shaped latch 26 is in the shape of a protruding disc, so that the electromagnet 29 can be attracted and moved toward it when it is energized.

[0044] In summary, the piston body 19 is first installed with the bottle bottom 22, the sealing sleeve 17 at the lower part of the piston body 19 is inserted into the water intake cylinder 23 in the bottle bottom 22, and then the bottle body 20 and the lower part 3 of the bottle cap are screwed in sequence, wherein the metal rod 12 of the piston body 19 is inserted into the reset member 11, and then inserted into the fixing sleeve 8 of the middle part 7 of the bottle cap and the sleeve 5 of the upper part 1 of the bottle cap, and the upper part 1 of the bottle cap is fixed with the middle part 7 of the bottle cap and the lower part 3 of the bottle cap by screws. Before use, a hard rod is inserted into the upper hole of the water intake cylinder 23 in the bottle bottom 22, and the metal rod 12 is pushed up to contact the metal spring 2 of the upper part 1 of the bottle cap, until the wedge-shaped locking hole 14 of the metal rod 12 is locked by the tongue-shaped latch 26, and the drone reaches the designated coordinates and altitude of the salt lake. After the temperature reaches 300 °C, the water intake pod 35 puts the bottle bottom 22 into the lake water, and the water inlet grid 24 of the water intake cylinder 23 is not covered by the sealing sleeve 17 at the bottom of the piston body 19. Because there is a vent 21 at the top of the bottle body 20, it is guaranteed that the salt lake brine can enter; when the water surface rises to the liquid level 32 and the liquid level detection metal rod 9 that passes through the upper and lower parts after being insulated and plugged, the attraction electromagnet coil 29 connected to the metal reed 2 and the metal rod 12 of the upper part 1 of the bottle cap through electric wires is powered on, and the tongue-shaped latch 26 in the upper part 1 of the bottle cap is sucked back, and the reset member 11 presses the entire piston body 19 back to the original position, closing the lower water inlet grid 24 and the vent 21 of the bottle body 20, to ensure the self-sealing effect that the sampled lake water does not flow out.

[0045] Example 2

[0046] Reference Figure 5 - Figure 7 , which is the second embodiment of the present invention, and this embodiment is different from the previous embodiment.

[0047] In this embodiment, preferably, the attraction electromagnet 29 is connected to the external line introduction "+" terminal through one end of the single-core wire 31, and the other end of the attraction electromagnet 29 is connected to the metal welding point 6 connected to the metal reed 2, and the liquid level detection metal rod 9 is connected to the external line introduction "-" terminal through one end of the single-core wire 31, and the other end of the liquid level detection metal rod 9 extends into the bottle body 20.

[0048] In this embodiment, preferably, a water intake pod 35 is carried at the bottom of the unmanned aerial vehicle body 33, and the water intake pod 35 includes an internally arranged hanging rope 34, a power-on instantaneous motion detection device 36 and an electric winch for independently mounting a self-sealing device. The water intake pod 35 is connected by its own independent electric winch, and the hanging rope 34 is installed between the self-sealing device and the electric winch, so as to facilitate lifting the self-sealing device upwards, and the size of the water intake pod 35 can be adapted to the size and load of the unmanned aerial vehicle body 33, and multiple salt lake brine sampling self-sealing devices can be mounted, and the distance between the multiple salt lake brine sampling self-sealing devices is at a suitable sampling position.

[0049] In this embodiment, preferably, a circular hole is opened in the middle of the top of the bottle cap upper part 1, a sleeve 5 is arranged in the circular hole, and a passage for the metal rod 12 to enter and exit is formed between the two.

[0050] In the present embodiment, preferably, a small hole for installing a fastening screw is opened on the outer edge of the bottom of the bottle cap upper part 1, and a metal reed 2 is fixed to the outer surface of the top of the bottle cap upper part 1. When taking water, the upper end of the metal rod 12 abuts against the lower surface of the end of the metal reed 2, and the metal reed 2 has a certain deformation, and a metal welding point 6 connected to the metal reed 2 is provided on the surface of the bottle cap upper part 1.

[0051] In the present embodiment, preferably, a lifting ear 4 is welded on the outer side of the lower portion 3 of the bottle cap for hanging the unmanned aerial vehicle 33. The upper and lower portions of the bottle body 20 have external threads for connecting the lower portion 3 of the bottle cap and the bottle bottom 22. Vent holes 21 are provided around the middle of the bottle body 20 for exhaust when water is taken in and for internal disinfection of the tank body. An internal threaded interface is provided on the upper inner ring of the bottle bottom 22 for fastening the external threaded interface of the bottle body 20.

[0052] In summary, the salt lake brine is used as a conductor. When the water level rises to the liquid level detection metal rod 9, the electromagnet coil 29 is turned on to suck back the tongue-shaped latch 26 in the upper part 1 of the bottle cap. The reset member 11 presses the entire piston body 19 back to the original position, and seals the lower water inlet grille 24 and the vent 21 of the bottle body 20. The liquid level detection metal rod 9 adjusts its height to replace the sensor for detecting the liquid level. After the metal rod 12 of the piston body 19 is reset, the upper part of the metal rod 12 is disconnected from the metal spring 2 of the upper part 1 of the bottle cap. , the electromagnet coil 29 loses power, and the energized instantaneous detection module connected in parallel in the water intake pod 35 sends a signal after instantaneous motion, and the electric winch recovers the self-sealing device for water intake that completes the lake water sampling this time. At the same time, because the metal rod 12 of the piston body 19 falls down, the electromagnet coil 29 loses power, and the energized instantaneous detection module connected in parallel in the water intake pod 35 sends a signal, the electric winch recovers the self-sealing device for water intake that completes the lake water sampling this time, and then flies to the next lake surface sampling point to deploy other self-sealing devices to continue sampling.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-sealing device for sampling salt lake brine based on an unmanned aerial vehicle, comprising an unmanned aerial vehicle body (33) and a self-sealing device, characterized in that: The self-sealing device comprises an upper portion of a bottle cap (1), a middle portion of a bottle cap (7), a lower portion of a bottle cap (3), a bottle body (20), a bottle bottom (22), and a piston body (19) for sealing after taking water; The middle part (7) of the bottle cap is a circular gasket, and the middle part of the circular gasket radius is provided with a liquid level detection metal rod (9) that passes through from top to bottom and is treated with insulation plugging. The salt lake brine is used as a conductor. When the water level rises to the liquid level detection metal rod (9), the electromagnet (29) is turned on. The piston body (19) further comprises a bottom sealing sleeve (17) and a sealing ring body (18), a piston ring body (15), a piston ring sealing ring (16), a reset piece (11), a metal rod (12) and a wedge-shaped locking hole (14); the bottom sealing sleeve (17) is a cylindrical cavity with an opening at the bottom, the center of the upper circle of the cylindrical cavity is welded to the metal rod (12), the sealing ring body (18) is installed at the cylindrical opening at the bottom of the cylindrical cavity, and the reset piece (11) is sleeved on the metal rod (12) for resetting the piston body (19); The middle part of the piston body (19) is welded to the piston ring body (15) via a metal rod (12); a piston ring seal (16) is attached to the outer surface of the piston ring body (15); and a wedge-shaped locking hole (14) is formed on the surface of the metal rod (12) and is located above the piston ring body (15) for locking and fixing a tongue-shaped latch (26); The upper part (1) of the bottle cap and the middle part (7) of the bottle cap form a shell structure, wherein a tongue-shaped latch (26), a locking pin (27), an attracting electromagnet (29), a stabilizing bracket (30) and a reset spring (28) for resetting the tongue-shaped latch (26) are arranged inside the shell structure; a hole is provided in the middle part of the tongue-shaped latch (26) for installing the locking pin (27); the rear part of the tongue-shaped latch (26) is in the shape of a protruding disc for attracting the attracting electromagnet (29) to move toward the attracting electromagnet (29) when power is supplied; and the stabilizing bracket (30) is used to fix the tongue-shaped latch (26); A metal reed (2) is fixed to the top outer surface of the bottle cap upper part (1), and a metal welding point (6) connected to the metal reed (2) is provided on the surface of the bottle cap upper part (1); The pull-in electromagnet (29) is connected to the external line introduction "+" terminal through one end of the single-core wire (31), and the other end of the pull-in electromagnet (29) is connected to the metal welding point (6) connected to the metal spring (2), and the liquid level detection metal rod (9) is connected to the external line introduction "-" terminal through one end of the single-core wire (31), and the other end of the liquid level detection metal rod (9) extends into the bottle body (20); The bottle bottom (22) comprises an inner middle water intake cylinder (23) and a weight patch (25) arranged on the outer surface; A water inlet grille (24) is provided on the side of the water intake cylinder (23); The bottom of the unmanned vehicle body (33) is equipped with a water intake pod (35).

2. The self-sealing device for sampling salt lake brine based on an unmanned aerial vehicle according to claim 1, characterized in that: The water intake pod (35) comprises a hanging rope (34) arranged inside, a power-on instantaneous detection device (36), and an electric winch that independently mounts a self-sealing device.

3. The self-sealing device for sampling salt lake brine based on an unmanned aerial vehicle according to claim 1, characterized in that: A circular hole is provided in the middle of the top of the bottle cap upper part (1), a sleeve (5) is provided in the circular hole, and a passage for the metal rod (12) to enter and exit is formed between the circular hole and the sleeve (5).

4. The self-sealing device for sampling salt lake brine based on an unmanned aerial vehicle according to claim 1, characterized in that: The outer edge of the bottom of the bottle cap upper part (1) is provided with a small hole for installing a fastening screw.

5. The self-sealing device for sampling salt lake brine based on an unmanned aerial vehicle according to claim 1, characterized in that: A lifting ear (4) is welded to the outer side of the lower part (3) of the bottle cap, the upper and lower parts of the bottle body (20) both have external threads, and ventilation holes (21) are provided around the middle of the bottle body (20).

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