Water sample collection pipeline telescoping mechanism

Abstract

The utility model belongs to the field of water sample collection equipment, and particularly relates to a water sample collection pipeline telescoping mechanism, which comprises a mounting rack arranged on an unmanned aerial vehicle, a sampling pump, sampling equipment and a water pumping pipe which are respectively arranged on the mounting rack, and is characterized in that the mounting rack is also provided with a telescoping unit and a telescoping driving unit, one end of the water pumping pipe is connected with the telescopic unit and is arranged in an S shape along the telescopic unit, the telescopic unit has the degree of freedom of telescopic in the vertical direction by means of the telescopic driving unit, the telescopic mechanism can effectively reduce the influence of the water pumping pipe on the balance of the unmanned aerial vehicle when the unmanned aerial vehicle flies, and the length of the water pumping pipe can be adjusted according to the sampling depth; and the requirements of water sample collection at different depths are met.

Description

Technical Field

[0001] The utility model belongs to the field of water sample collection equipment, and in particular relates to a water sample collection pipeline telescopic mechanism. Background Art

[0002] Water sampling is a key step in obtaining water quality information. Water samples are generally collected manually in different areas. However, manual collection in waters far from the shore requires taking a boat, which will disturb the sampled waters and affect the water quality of the sampled waters. Therefore, a method of collecting water samples without prior contact by drone has emerged. The specific operation is to install an open sampling bottle under the drone with the help of a pull rope. The drone carries the sampling bottle to the top of the water area and then descends to allow the sampling bottle to enter the water for sampling. After a period of time, the drone rises, lifts the sampling bottle out of the water and flies back to complete the sampling. If the pull rope is too short in this method, it cannot be used. When collecting water samples from deep depths, the pull rope is long and the flying altitude of the drone needs to be increased to avoid obstacles below. In addition, the pull rope with the sampling bottle, especially when the gravity of the sampling bottle with water samples increases, can easily cause the drone to shake during flight, affecting the balance of the drone and even causing the drone to fall. If the sampling bottle is installed on the drone and the water pipe and water pump are used to pump water into the sampling bottle, the long water pipe dragged under the drone will still affect the stability of the drone. If the water pipe is directly raised, it is easy to cause the water pipe to collide with the drone body or even the propeller. Therefore, the existing drone sampling method is still greatly affected by the environment. Utility Model Content

[0003] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a water sample collection pipeline telescopic mechanism, which effectively reduces the impact of the sampling equipment on the balance of the drone during flight, and can adjust the length of the water pump according to the sampling depth to meet the water sample collection needs at different depths.

[0004] The specific technical solution adopted by the utility model is:

[0005] A telescopic mechanism for a water sample collection pipeline comprises a mounting frame arranged on an unmanned aerial vehicle, a sampling pump, a sampling bottle and a water suction pipe are respectively arranged on the mounting frame, and the key point is that a telescopic unit and a telescopic drive unit are also arranged on the mounting frame, one end of the water suction pipe is connected to the telescopic unit and arranged in an S shape along the telescopic unit, and the telescopic unit has the freedom to telescope in the vertical direction with the help of the telescopic drive unit.

[0006] The telescopic driving unit comprises a winch and a traction rope connected to the winch, and the traction rope is connected to the lower end of the telescopic unit.

[0007] The telescopic unit comprises a group of first connecting rods hinged in sequence head to tail, the end of the traction rope is connected to the first connecting rod at the end, and the water pumping pipe is arranged along each first connecting rod in sequence.

[0008] The cross section of the first connecting rod is a U-shaped structure, and a through hole is provided at the bottom of the first connecting rod. The water pump is located in the U-shaped structure of the first connecting rod and enters the U-shaped structure of the first connecting rod below through the through hole. The through holes are respectively located at opposite ends of two adjacent first connecting rods.

[0009] The telescopic unit includes two groups of second connecting rods which are arranged vertically in sequence and hinged to each other end to end. The two groups of second connecting rods are arranged in an X-shaped cross and hinged to each other. The water pumping pipe is arranged along one of the groups of second connecting rods, and the end of the traction rope is connected to the second connecting rod at the end.

[0010] The telescopic unit is provided with a group of round retaining rods located inside the bending part of the water pumping pipe, and the water pumping pipe forms an S-shaped structure with the help of the round retaining rods. The telescopic unit is also provided with a group of clamping rings, and the water pumping pipe passes through the clamping rings and is connected to the telescopic unit.

[0011] The telescopic unit is provided with a group of guide tubes, and the traction rope is extended from the winch and connected with the lower end of the telescopic unit after passing through the guide tubes.

[0012] The mounting frame is a storage box with an opening facing downward, the upper end of the telescopic unit is hinged to the storage box, and the telescopic unit is stored in the storage box.

[0013] The beneficial effects of the utility model are:

[0014] The utility model adopts the method of adding a telescopic unit and a telescopic driving unit to the unmanned aerial vehicle, the water pumping pipe is connected to the telescopic unit and is arranged in an S shape along the telescopic unit. During the flight of the unmanned aerial vehicle, the telescopic unit is in a contracted state, and the water pumping pipe is contracted with the help of the telescopic unit, so as to prevent the stretched and unconstrained water pumping pipe from shaking significantly during the flight, thereby ensuring the stable flight of the unmanned aerial vehicle, and the water pumping pipe will not affect the fuselage and propeller of the unmanned aerial vehicle by relying on folding and lifting; the S-shaped structure enables the water pumping pipe to be stacked in layers, and provides the water pumping pipe with a vertical extension length when the telescopic unit is extended, and the water pumping pipe is regular in both the storage and extended states; after the unmanned aerial vehicle reaches above the water area, the telescopic driving unit drives the telescopic unit to drive the water pumping pipe to extend downward, and the water pumping pipe enters the water for sampling. After the sampling is completed, the telescopic driving unit drives the telescopic unit to drive the water pumping pipe to be drawn out of the water and folded under the unmanned aerial vehicle, thereby reducing the impact on the stability of the unmanned aerial vehicle during flight. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of Example 1;

[0016] Figure 2 is a schematic diagram of the extension of the telescopic unit in the containing box of Example 1;

[0017] Figure 3 It is a schematic diagram of the assembly of the telescopic unit and the water pumping pipe of Example 1;

[0018] Figure 4 It is a schematic diagram of the assembly of the telescopic unit and the water pumping pipe of Example 2;

[0019] Figure 5 It is a schematic diagram of the assembly of the telescopic unit and the water pumping pipe of Example 3;

[0020] In the attached drawings, 1. UAV, 2. water pumping pipe, 3. telescopic unit, 31. first connecting rod, 32. through hole, 34. second connecting rod, 35. round stop rod, 36. clamping ring, 4. telescopic driving unit, 41. winch, 42. traction rope, 5. guide tube, 6. containing box. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] Embodiment 1, as Figure 1-3 As shown, a telescopic mechanism for water sample collection pipeline includes a mounting frame arranged on an unmanned aerial vehicle 1, a sampling pump, a sampling device and a water pump 2 are respectively arranged on the mounting frame, and the water outlet of the water pump 2 is connected to the sampling device. In this embodiment, the sampling device is a sampling bottle. The key is that a telescopic unit 3 and a telescopic drive unit 4 are also arranged on the mounting frame, one end of the water pump 2 is connected to the telescopic unit 3 and is arranged in an S shape along the telescopic unit 3, and the telescopic unit 3 has the freedom of telescopic extension in the vertical direction by means of the telescopic drive unit 4, and the water pump 2 is retracted when the unmanned aerial vehicle 1 is flying by means of the telescopic unit 3 to prevent the water pump 2 from affecting the balance of the unmanned aerial vehicle 1, and when the unmanned aerial vehicle reaches the sampling water area, the water pump 2 extends downward and enters the water for sampling, and the sampling depth is adjustable. The telescopic drive unit 4 includes a winch 41 and a traction rope 42 connected to the winch 41, and the traction rope 42 is connected to the lower end of the telescopic unit 3. The extension or contraction of the telescopic unit 3 is achieved by the retraction and release of the traction rope 42 by the winch 41. The lower end of the water pumping pipe 2 can be folded together by means of the telescopic unit 3, thereby reducing the length of the items towed under the drone and preventing the drone from affecting its flight stability.

[0023] The telescopic unit 3 includes a group of first connecting rods 31 hinged end to end, the end of the traction rope 42 is connected to the first connecting rod 31 at the end, and the water pumping pipe 2 passes through each first connecting rod 31 from top to bottom and is connected to the side wall of each first connecting rod 31; the first connecting rod 31 at the end is lifted by the traction rope 42, so that each first connecting rod 31 is rotated along the hinge axis between the first connecting rods 31 to achieve stacking, so as to retract the water pumping pipe 2; the winch 41 rotates to lengthen the traction rope 42, and the first connecting rod 31 automatically falls and opens under the action of gravity, so that the water pumping pipe 2 is extended.

[0024] A group of round baffle rods 35 located on the inner side of the bent portion of the water suction pipe 2 is provided on the telescopic unit 3. The round baffle rods 35 are located at the end portion on the side wall of the first connecting rod 31. The water suction pipe 2 changes direction with the help of the round baffle rods 35 to form an S-shaped structure. The round baffle rods 35 support the bent portion of the water suction pipe 2 to prevent the bent portion of the water suction pipe 2 from being bent or flattened, thereby reducing water flow resistance and ensuring that the water sample can be smoothly drawn into the sampling bottle.

[0025] A clamping ring 36 is provided on the first connecting rod 31 , through which the water pumping pipe 2 passes, and a local position on the water pumping pipe 2 is connected and fixed to the first connecting rod 31 by means of the clamping ring 36 , ensuring that the water pumping pipe 2 can extend or contract with the first connecting rod 31 .

[0026] A group of guide tubes 5 are provided on the telescopic unit 3. The traction rope 42 is extended from the winch 41 and connected to the lower end of the telescopic unit 3 after passing through the guide tubes 5. The guide tubes 5 are located in the middle of the first connecting rod 31. The guide tubes 5 can reduce the occurrence of hooking between the traction rope 42 and the end of the first connecting rod 31. Furthermore, a counterweight is provided on the guide tube 5 so that the guide tube 5 is always in a vertical direction, which can reduce the bending and friction of the traction rope 42 and improve the stability of the first connecting rod 31 during the telescopic process.

[0027] Furthermore, the mounting frame is a storage box 6 with an opening facing downward, the upper end of the telescopic unit 3 is hinged to the storage box 6, and the telescopic unit 3 is stored in the storage box 6 when it is contracted. The upper end of the first connecting rod 31 at the top of the telescopic unit 3 is hinged to the top of the storage box 6, the winch is located at the upper end in the storage box 6, and a connecting ring is provided on the first connecting rod 31 at the end of the telescopic unit 3. The ends of the traction rope 42 pass through the guide tube 5 arranged from top to bottom in sequence and are connected to the connecting ring on the first connecting rod 31 at the end of the telescopic unit 3. The sampling bottle and the sampling pump are both located in the storage box 6. .

[0028] Embodiment 2, as Figure 4As shown, it is basically the same as Embodiment 1, except that the cross-section of the first connecting rod 31 is in a U-shaped structure, a through hole 32 is provided at the bottom of the first connecting rod 31, the water suction pipe 2 is located within the U-shaped structure of the first connecting rod 31 and enters the U-shaped structure of the lower first connecting rod 31 through the through hole 32; the through holes 32 are respectively located at opposite ends of adjacent first connecting rods 31, that is, among adjacent first connecting rods 31, if a through hole 32 is provided at the left end of the upper first connecting rod 31, then a through hole 32 is provided at the right end of the lower first connecting rod 31. The round retaining rod 35 is located between the inner walls of the first connecting rod 31, and the round retaining rods 35 are respectively located at both ends of the first connecting rod 31. One of the round retaining rods 35 is located at the bottom of the first connecting rod 31 and is arranged adjacent to the through hole 32, and the other round retaining rod 35 is located at the upper part of the first connecting rod 31. The water suction pipe 2 changes its direction by means of the round retaining rod 35 and the through hole 32. By means of the U-shaped structure, part of the pipe body of the water suction pipe 2 is located within the groove, and the first connecting rod 31 protects the water suction pipe 2, reducing the collision of the water suction pipe 2 with external substances. The round retaining rod 35 supports the water suction pipe 2 entering and exiting the first connecting rod 31, preventing the water suction pipe 2 from generating dead bends that affect the water flow.

[0029] Embodiment 3, as Figure 5 shown, it is basically the same as Embodiment 1, except that the telescopic unit 3 includes two groups of second connecting rods 34 arranged vertically in sequence and hinged to each other at the head and tail. The two groups of second connecting rods 34 are arranged in an X-crossed manner and hinged to each other. The water suction pipe 2 is arranged along one group of second connecting rods 34. The end of the traction rope 42 is connected to the second connecting rod 34 at the end. The traction rope 42 vertically passes downward through the crossed position in the middle of the second connecting rod 34. A connecting ring is provided at the end of the hinge shaft between the two second connecting rods 34 arranged in an X-crossed manner at the end. The end of the traction rope 42 is connected to the connecting ring, and the traction rope 42 is connected to the second connecting rod 34 at the end by means of the connecting ring. Among them, the guide pipe 5 is connected to the hinge shaft between the two groups of second connecting rods 34. The second connecting rods 34 arranged in a crossed manner enhance the strength and stability of the telescopic unit 3. By retracting and releasing the traction rope 42, the second connecting rod 34 can be contracted in the vertical direction;

[0030] A group of round retaining rods 35 are arranged on the telescopic unit 3 inside the bending part of the water suction pipe 2. The round retaining rods 35 are coaxially arranged with the hinge shafts at the ends of the second connecting rods 34. The water suction pipe 2 forms an S-shaped structure by means of the round retaining rods 35. A group of snap rings 36 are also arranged on the telescopic unit 3. The water suction pipe 2 passes through the snap rings 36 and is connected to the second connecting rod 34.

[0031] Embodiment 4 is basically the same as Embodiment 1, except that the sampling device is a water body eDNA collection filter.

[0032] Embodiment 5 is basically the same as Embodiment 2, except that the sampling device is a water body eDNA collection filter.

[0033] Example 6 is basically the same as Example 3, except that the sampling device is a water eDNA collection filter.

[0034] The water body eDNA collection filter involved in Example 4 to Example 6 includes an upper cover body with an upper filter plate, a lower cover body with a lower filter plate, a filter cavity formed by the upper filter plate and the lower filter plate, and a filter membrane located in the filter cavity. A water inlet is provided at the upper end of the upper cover body, and a drain port is provided at the lower end of the lower cover body. The water inlet is connected to a pumping pipe 2. During the sampling process, the sampling pump works to pump water into the water body eDNA collection filter for filtering and sampling the water body, and the sampled water flows out from the drain port.

[0035] The telescopic unit 3 of the utility model includes a first connecting rod 31 or a second connecting rod 34 to provide support for the water pumping pipe 2 and can be telescopic according to the usage so that the extended length of the water pumping pipe 2 from the drone meets the sampling or flight requirements, which can not only collect water samples from different waters and depths, but also ensure the stable flight of the drone.

Claims

1. A water sample collection pipeline telescopic mechanism, comprising a mounting frame arranged on an unmanned aerial vehicle, a sampling pump, a sampling device and a water pumping pipe (2) are respectively arranged on the mounting frame, characterized in that: The mounting frame is also provided with a telescopic unit (3) and a telescopic drive unit (4); one end of the water pumping pipe (2) is connected to the telescopic unit (3) and is arranged in an S shape along the telescopic unit (3); the telescopic unit (3) has the freedom to telescope in the vertical direction with the help of the telescopic drive unit (4).

2. A water sample collection pipeline telescopic mechanism according to claim 1, characterized in that: The telescopic drive unit (4) comprises a hoist (41) and a traction rope (42) connected to the hoist (41), and the traction rope (42) is connected to the lower end of the telescopic unit (3).

3. A water sample collection pipeline telescopic mechanism according to claim 2, characterized in that: The telescopic unit (3) comprises a group of first connecting rods (31) hinged end to end, the end of the traction rope (42) is connected to the first connecting rod (31) at the end, and the water pumping pipe (2) is arranged along each first connecting rod (31) in sequence.

4. A water sample collection pipeline telescopic mechanism according to claim 3, characterized in that: The cross section of the first connecting rod (31) is a U-shaped structure. A through hole (32) is provided at the bottom of the first connecting rod (31). The water pumping pipe (2) is located in the U-shaped structure of the first connecting rod (31) and enters the U-shaped structure of the first connecting rod (31) below through the through hole (32). The through holes (32) are respectively located at opposite ends of two adjacent first connecting rods (31).

5. The water sample collection pipeline telescopic mechanism according to claim 2, characterized in that: The telescopic unit (3) comprises two groups of second connecting rods (34) which are arranged in sequence along the vertical direction and hinged to each other at the head and tail ends. The two groups of second connecting rods (34) are arranged in an X-shaped cross pattern and hinged to each other. The water pumping pipe (2) is arranged along one of the groups of second connecting rods (34), and the end of the traction rope (42) is connected to the second connecting rod (34) at the end.

6. The water sample collection pipeline telescopic mechanism according to claim 1, characterized in that: The telescopic unit (3) is provided with a group of round retaining rods (35) located inside the bent portion of the water pumping pipe (2), and the water pumping pipe (2) forms an S-shaped structure with the help of the round retaining rods (35). The telescopic unit (3) is also provided with a group of clamping rings (36), and the water pumping pipe (2) passes through the clamping rings (36) to be connected to the telescopic unit (3).

7. The water sample collection pipeline telescopic mechanism according to claim 2, characterized in that: The telescopic unit (3) is provided with a group of guide tubes (5), and the traction rope (42) is extended from the hoist (41) and connected to the lower end of the telescopic unit (3) after passing through the guide tubes (5).

8. The water sample collection pipeline telescopic mechanism according to claim 1, characterized in that: The mounting frame is a accommodating box (6) with an opening facing downward, the upper end of the telescopic unit (3) is hinged to the accommodating box (6), and the telescopic unit (3) is accommodated in the accommodating box (6).

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