A sampling device

Abstract

The utility model discloses a sampling device relates to water quality detection technical field, including base frame, the upper end fixed of base frame has the top frame, the inside rotation of top frame is connected with the winding shaft, and the outside winding of winding shaft is provided with the rope sling spare, the inside fixed of base frame has the balance beam, one end of rope sling spare is fixed with winding shaft, and the other end of rope sling spare is wound to the outside of balance beam and is fixed with sampling box, the inside fixed of sampling box has the water pipe, and the both ends of sampling box inside and located water pipe outside are all fixed with second baffle, and the both ends of sampling box inside and located every second baffle are all set up to store sample cavity, the inside of every store sample cavity and located water pipe outside all are provided with waterproof hydraulic rod, and the telescopic end of every waterproof hydraulic rod all is fixed with hollow cylinder seat. The utility model provides a sampling device, through the overall structure cooperation design, makes without repeatedly sending sampling box into water, can complete different water depth's multiple sampling one time, effectively promotes sampling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, and in particular to a sampling device. Background Technology

[0002] Water quality testing and sampling devices are used to collect samples from rivers, lakes, etc. The sampled water is then tested by a water quality monitoring instrument to understand the water quality of the water area.

[0003] For example, Chinese utility model patent (CN219957001U) discloses a positioning water quality sampling device for environmental testing, which describes: "It includes a sampling bucket, a handle is fixedly connected to the inner side of the sampling bucket, a grip is fixedly connected to one end of the handle, and a leak-proof structure is provided on the top of the sampling bucket."

[0004] The aforementioned device can only take a single sample at one water depth each time it is submerged in water. This results in the need to repeatedly submerge the device in water when comparative experiments are required and multiple samples need to be obtained, leading to low sampling efficiency. Therefore, this application proposes a sampling device. Utility Model Content

[0005] Therefore, it is necessary to provide a sampling device to address the above-mentioned technical problems. Through the overall structural design, multiple samplings at different water depths can be completed in one go without repeatedly sending the sampling box into the water, effectively improving sampling efficiency.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A sampling device used for water quality testing;

[0008] The device includes a base frame, a top frame fixed to the upper end of the base frame, a winding shaft rotatably connected to the inner side of the top frame, a rope lifting member wound around the outer side of the winding shaft, a balance beam fixed to the inner side of the base frame, one end of the rope lifting member fixed to the winding shaft, and the other end of the rope lifting member wound around the outer side of the balance beam and fixed with a sampling box.

[0009] A water guide pipe is fixed inside the sampling box. A first partition is fixed inside the sampling box at the center of the water guide pipe. A second partition is fixed at both ends inside the sampling box and outside the water guide pipe. A sample storage cavity is opened inside the sampling box at both ends of each second partition.

[0010] A waterproof hydraulic rod is provided inside each of the sample storage chambers and outside the water guide pipe. The waterproof hydraulic rod is fixed to the sampling box. A hollow cylinder seat is fixed to the telescopic end of each waterproof hydraulic rod. The end of the hollow cylinder seat away from the waterproof hydraulic rod passes through the water guide pipe and is slidably connected to the water guide pipe.

[0011] In a preferred embodiment of the sampling device provided by this utility model, each hollow cylinder seat has a water inlet hole at the end near the water guide pipe and a water outlet hole at the end near the waterproof hydraulic rod. The hollow cylinder seat, the water inlet hole, and the water outlet hole are connected to each other.

[0012] In a preferred embodiment of the sampling device provided by this utility model, a first spur gear is fixed to the outer side of the winding shaft, a first motor is fixed to the top of the inner side of the top frame, a rotating shaft is fixed to the output end of the first motor, and a second spur gear is fixed to the outer side of the rotating shaft. The second spur gear meshes with the first spur gear.

[0013] In a preferred embodiment of the sampling device provided by this utility model, counterweight balls are fixed at the four corners of the bottom of the sampling box.

[0014] In a preferred embodiment of the sampling device provided by this utility model, both ends of the inner side of the water guide pipe are slidably connected to a drain plate, and a driving component is provided on the inner side of the water guide pipe and between the two drain plates.

[0015] In a preferred embodiment of the sampling device provided by this utility model, the driving assembly includes a guide rod and a bidirectional screw. The guide rod and the bidirectional screw are respectively provided inside the water guide pipe. Both drainage discs are slidably connected to the guide rod and threadedly connected to the bidirectional screw. The guide rod is fixed to the water guide pipe, and the bidirectional screw is rotatably connected to the water guide pipe. A worm gear is fixed at the center of the outer side of the bidirectional screw, and a second motor is fixed at the center of the inner side of the water guide pipe. A worm is fixed at the output end of the second motor, and the worm is meshed with the worm gear.

[0016] In a preferred embodiment of the sampling device provided by this utility model, a sampling tube is fixedly connected inside the sampling box and outside each sample storage chamber, and a cap is threadedly connected to the outside of each sampling tube, the cap being located outside the sampling box.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The sampling device provided by this utility model, through its overall structural design, allows for multiple samplings at different water depths in one go without repeatedly sending the sampling box into the water, effectively improving sampling efficiency. Furthermore, the use of a balance beam helps to keep the sampling box in the center of the suspension position, and the four counterweight balls ensure that the sampling box sinks quickly and is not prone to tilting when lowered into the water by ropes. Attached Figure Description

[0019] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of the sampling device provided by this utility model;

[0021] Figure 2 A schematic diagram of the inner side of the sampling device base frame provided by this utility model;

[0022] Figure 3 A schematic diagram of the inner side of the sampling box of the sampling device provided by this utility model;

[0023] Figure 4 A schematic diagram of the outer structure of the sampling box of the sampling device provided by this utility model.

[0024] The markings in the diagram are explained as follows:

[0025] 1. Base frame; 2. Top frame; 3. Winding shaft; 4. First spur gear; 5. First motor; 6. Rotating shaft; 7. Second spur gear; 8. Rope lifting component; 9. Balance beam; 10. Sampling box; 11. Counterweight ball; 12. Water guide pipe; 13. First partition; 14. Second partition; 15. Sample storage chamber; 16. Waterproof hydraulic rod; 17. Hollow cylinder base; 18. Water inlet; 19. Water outlet; 20. Guide rod; 21. Bidirectional screw; 22. Drainage tray; 23. Worm gear; 24. Second motor; 25. Worm; 26. Sampling tube; 27. Cover. Detailed Implementation

[0026] As described in the background art, the aforementioned device can only take a single sample at one water depth each time it is submerged in water. This results in the need to repeatedly submerge the device in water when comparative experiments are required and multiple samples need to be obtained, leading to low sampling efficiency.

[0027] To solve this technical problem, this utility model provides a sampling device that is applied to water quality testing;

[0028] It includes a base frame 1, a top frame 2 fixed at the upper end of the base frame 1, a winding shaft 3 rotatably connected to the inner side of the top frame 2, a rope lifting member 8 wound around the outer side of the winding shaft 3, a balance beam 9 fixed to the inner side of the base frame 1, one end of the rope lifting member 8 fixed to the winding shaft 3, and the other end of the rope lifting member 8 wound around to the outer side of the balance beam 9 and fixed with a sampling box 10.

[0029] A water guide pipe 12 is fixed inside the sampling box 10. A first partition 13 is fixed inside the sampling box 10 and at the center outside the water guide pipe 12. A second partition 14 is fixed at both ends inside the sampling box 10 and outside the water guide pipe 12. A sample storage cavity 15 is opened inside the sampling box 10 and at both ends of each second partition 14.

[0030] A waterproof hydraulic rod 16 is provided inside each sample storage chamber 15 and outside the water guide pipe 12. The waterproof hydraulic rod 16 is fixed to the sampling box 10. A hollow cylinder seat 17 is fixed to the telescopic end of each waterproof hydraulic rod 16. The end of the hollow cylinder seat 17 away from the waterproof hydraulic rod 16 passes through the water guide pipe 12 and is slidably connected to the water guide pipe 12.

[0031] The sampling device provided by this utility model, through its overall structural design, allows for multiple samplings at different water depths in a single operation without repeatedly submerging the sampling box 10 into the water.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Example

[0034] Please refer to Figure 1-4 A sampling device includes a base frame 1, a top frame 2 fixed to the upper end of the base frame 1, a winding shaft 3 rotatably connected to the inner side of the top frame 2, a rope suspension member 8 wound around the outer side of the winding shaft 3, a balance beam 9 fixed to the inner side of the base frame 1, one end of the rope suspension member 8 fixed to the winding shaft 3, and the other end of the rope suspension member 8 wound around the outer side of the balance beam 9 and fixed to a sampling box 10. The setting of the balance beam 9 makes it convenient to keep the sampling box 10 in the center of the suspension position.

[0035] In order to facilitate the rotation of the winding shaft 3 and thus the flexible loading and unloading of the sampling box 10, a first spur gear 4 is fixed on the outside of the winding shaft 3, a first motor 5 is fixed on the top of the inner side of the top frame 2, a rotating shaft 6 is fixed on the output end of the first motor 5, and a second spur gear 7 is fixed on the outside of the rotating shaft 6. The second spur gear 7 is meshed with the first spur gear 4. When the sampling box 10 is lowered into the water by the rope sling 8, in order to enable it to sink quickly and not easily tilt, counterweight balls 11 are fixed at the four corners of the bottom of the sampling box 10.

[0036] When the sampling box 10 rises and falls to different water depths, in order to facilitate multiple sampling, a water guide pipe 12 is fixed inside the sampling box 10. A first partition 13 is fixed inside the sampling box 10 and at the center outside the water guide pipe 12. A second partition 14 is fixed at both ends inside the sampling box 10 and outside the water guide pipe 12. A sample storage cavity 15 is opened inside the sampling box 10 and at both ends of each second partition 14. A waterproof hydraulic rod 16 is provided inside each sample storage cavity 15 and outside the water guide pipe 12. The waterproof hydraulic rod 16 is fixed to the sampling box 10. A hollow cylinder seat 17 is fixed at the telescopic end of each waterproof hydraulic rod 16. The end of the hollow cylinder seat 17 away from the waterproof hydraulic rod 16 passes through the water guide pipe 12 and is slidably connected to the water guide pipe 12.

[0037] Each hollow cylindrical seat 17 has an inlet hole 18 inside the end near the water guide pipe 12, and an outlet hole 19 inside the end near the waterproof hydraulic rod 16. The hollow cylindrical seat 17, the inlet hole 18, and the outlet hole 19 are connected to each other, so that when water enters the inside of the water guide pipe 12, the waterproof hydraulic rod 16 inside a certain sample storage chamber 15 is controlled to extend out of the hollow cylindrical seat 17, so that water can be poured into the inside of the hollow cylindrical seat 17 through the inlet hole 18 and flow into the sample storage chamber 15 through the outlet hole 19 for storage, thus completing the sampling of the current water depth.

[0038] When it is necessary to change the water depth for sampling, in order to facilitate the drainage of water in the current water pipe 12 and avoid water sample mixing and sampling confusion, both ends of the inner side of the water pipe 12 are slidably connected to a drain plate 22, and a drive component is provided on the inner side of the water pipe 12 and between the two drain plates 22.

[0039] Specifically, the drive assembly includes a guide rod 20 and a bidirectional screw 21. The guide rod 20 and the bidirectional screw 21 are respectively provided on the inner side of the water pipe 12. The two drainage discs 22 are slidably connected to the guide rod 20 and threadedly connected to the bidirectional screw 21. The guide rod 20 is fixed to the water pipe 12, and the bidirectional screw 21 is rotatably connected to the water pipe 12. A worm gear 23 is fixed at the center of the outer side of the bidirectional screw 21. A second motor 24 is fixed at the center of the inner side of the water pipe 12. A worm 25 is fixed at the output end of the second motor 24, and the worm 25 is meshed with the worm gear 23. Example

[0040] The sampling device provided in Example 1 has been further optimized, specifically, as follows: Figure 4 As shown, when multiple sample storage chambers 15 are filled with water samples of different depths, in order to facilitate the removal and testing of multiple water samples, sampling tubes 26 are fixedly connected inside the sampling box 10 and outside each sample storage chamber 15. Each sampling tube 26 is threadedly connected to a cap 27 on the outside of the sampling box 10.

[0041] All of the above electrical components are electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that performs control, and the existing publicly available power connection technology will not be described in detail here.

[0042] The sampling device provided by this utility model is used as follows: First, the first motor 5 is driven to rotate the shaft 6 and the second flat gear 7. The meshing of the second flat gear 7 and the first flat gear 4 drives the winding shaft 3 to rotate. Then, the rope sling 8 and the balance beam 9 are used to lower the sampling box 10 into the water. The counterweight ball 11 makes the sampling box 10 sink quickly and not easily tilt, so that the sampling box 10 can quickly reach the specified water depth.

[0043] When the sampling box 10 reaches the designated water depth, in order to sample the current water depth, the second motor 24 is first started to drive the worm 25 to rotate. The meshing of the worm 25 and the worm wheel 23 drives the bidirectional screw 21 to rotate, which in turn drives the two drainage discs 22 to move closer to each other through the guidance of the guide rod 20, so that water can enter the inside of the water pipe 12.

[0044] Then, activate the waterproof hydraulic rod 16 inside a certain sample storage chamber 15 to extend the hollow cylinder seat 17, so that the hollow cylinder seat 17 extends to the inside of the water guide pipe 12, so that the water inlet 18 is located inside the water guide pipe 12, so that the water sample can be poured into the hollow cylinder seat 17 through the water inlet 18 and flow into the sample storage chamber 15 through the water outlet 19 for storage, thus completing the sampling at the current water depth;

[0045] After sampling is completed, the waterproof hydraulic rod 16 is retracted into the hollow cylinder seat 17 to stop sampling. The two drainage plates 22 are then moved away from each other to facilitate the complete drainage of water from the current water depth in the water pipe 12. This prevents water samples from mixing and causing sampling chaos when the sampling box 10 moves to the next water depth for sampling.

Claims

1. A sampling device, characterized in that, Includes a base frame (1), a top frame (2) fixed at the upper end of the base frame (1), a winding shaft (3) rotatably connected to the inner side of the top frame (2), a rope lifting member (8) wound around the outer side of the winding shaft (3), a balance beam (9) fixed to the inner side of the base frame (1), one end of the rope lifting member (8) fixed to the winding shaft (3), and the other end of the rope lifting member (8) wound around to the outer side of the balance beam (9) and fixed with a sampling box (10). The sampling box (10) has a water guide pipe (12) fixed inside. A first partition (13) is fixed inside the sampling box (10) and at the center outside the water guide pipe (12). A second partition (14) is fixed at both ends inside the sampling box (10) and outside the water guide pipe (12). A sample storage cavity (15) is opened inside the sampling box (10) and at both ends of each second partition (14). A waterproof hydraulic rod (16) is provided inside each of the sample storage chambers (15) and outside the water guide pipe (12). The waterproof hydraulic rod (16) is fixed to the sampling box (10). A hollow cylinder seat (17) is fixed to the telescopic end of each of the waterproof hydraulic rods (16). The end of the hollow cylinder seat (17) away from the waterproof hydraulic rod (16) passes through the water guide pipe (12) and is slidably connected to the water guide pipe (12).

2. The sampling device according to claim 1, characterized in that, Each hollow cylindrical seat (17) has an inlet hole (18) inside the end near the water guide pipe (12), and each hollow cylindrical seat (17) has an outlet hole (19) inside the end near the waterproof hydraulic rod (16). The hollow cylindrical seat (17), the inlet hole (18), and the outlet hole (19) are connected to each other.

3. The sampling device according to claim 1, characterized in that, A first spur gear (4) is fixed to the outside of the winding shaft (3), a first motor (5) is fixed to the top of the inner side of the top frame (2), a rotating shaft (6) is fixed to the output end of the first motor (5), a second spur gear (7) is fixed to the outside of the rotating shaft (6), and the second spur gear (7) meshes with the first spur gear (4).

4. The sampling device according to claim 1, characterized in that, The sampling box (10) has a counterweight ball (11) fixed at each of the four corners at the bottom.

5. The sampling device according to claim 1, characterized in that, Both ends of the inner side of the water guide pipe (12) are slidably connected to the drain plate (22), and a drive component is provided inside the water guide pipe (12) and between the two drain plates (22).

6. The sampling device according to claim 5, characterized in that, The drive assembly includes a guide rod (20) and a bidirectional screw (21). The guide rod (20) and the bidirectional screw (21) are respectively provided on the inner side of the water pipe (12). The two drainage discs (22) are slidably connected to the guide rod (20) and threadedly connected to the bidirectional screw (21). The guide rod (20) is fixed to the water pipe (12), and the bidirectional screw (21) is rotatably connected to the water pipe (12). A worm gear (23) is fixed at the center of the outer side of the bidirectional screw (21), and a second motor (24) is fixed at the center of the inner side of the water pipe (12). A worm (25) is fixed at the output end of the second motor (24), and the worm (25) is meshed with the worm gear (23).

7. The sampling device according to claim 1, characterized in that, Sampling tubes (26) are fixedly connected inside the sampling box (10) and outside each sample storage chamber (15). Each sampling tube (26) is threadedly connected to a cap (27) on its outside. The caps (27) are located outside the sampling box (10).

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