A sampling device for water pollution detection

Abstract

The present invention relates to the technical field of water pollution detection, and specifically provides a sampling device for water pollution detection, which includes a floating platform, a temporary storage water tank, a connecting rod, a liquid pumping mechanism, a filtering mechanism and an anti-blocking mechanism. The connecting rod is vertically fixed to the bottom of the floating platform, and the liquid pumping mechanism and the filtering mechanism are fixed to the connecting rod; the liquid pumping mechanism includes a waterproof motor, a connecting frame and a plurality of pumping rings. An inlet is formed between every two pumping rings. A propeller is fixed in each pumping ring, and the propeller is coaxially and fixedly connected to the output shaft of the waterproof motor. The axis of the propeller is the same as the axis of the pumping ring, and the propeller is used to make the liquid flow from the inlet into the filtering mechanism; the anti-blocking mechanism includes a rotary cutter group, which is rotatably installed at the inlet. The rotary cutter group is coaxially connected to the propeller, and the end of the rotary cutter group is located outside the inlet. Through the cooperation of the liquid pumping mechanism and the anti-blocking mechanism, the liquid pumping mechanism is prevented from being blocked by sundries during the sampling process.

Description

Technical Field

[0001] The present invention relates to the technical field of water pollution detection, and particularly to a sampling device for water pollution detection. Background Art

[0002] Exceeding the standards of suspended solids in normal water areas, organic concentration in wastewater, pH value, and bacterial content in sewage will cause the natural cycle in the water area to be damaged. For the operation of water quality detection, in the process of sampling at different positions in large water areas or water areas with large water flow rates, it is difficult for the tool for suspending and extracting sample water to sink quickly. At the same time, the large water flow rate will also cause a large resistance to the existing sampling tools in deep water and is prone to blockage, resulting in the need to lift and clean multiple times before sampling, which is very cumbersome.

[0003] The water pollution monitoring and sampling device with the patent literature publication number CN220170636U includes a water tank. A box cover is movably arranged on the upper side of the water tank. Two groups of vertical plates are fixedly arranged on the upper side of the box cover. A rotating rod is rotatably arranged between the two groups of vertical plates. A rotating cylinder is fixedly sleeved on the outer side of the rotating rod. A driving block is fixedly arranged on the outer side of the rotating cylinder. An installation plate is movably arranged on the lower side of the driving block. A cleaning ring is movably arranged inside the water tank. Two groups of connecting rods are arranged on the upper side of the cleaning ring, and the upper ends of the connecting rods, which are located on the upper side of the box cover, are fixedly connected to the installation plate. A reset spring is movably sleeved on the outer side of the connecting rod. One end of the reset spring is fixedly connected to the box cover, and the other end of the reset spring is fixedly connected to the installation plate. However, this patent still has some deficiencies: 1. It is easy to be blocked by larger debris in the water body at the water inlet during water sampling, resulting in difficult sampling; 2. It is difficult to preserve the taken samples. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to solve the problem of difficult cleaning of debris near the water inlet and avoid blockage of the water inlet. The present invention provides a sampling device for water pollution detection to solve the above problems.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows: A sampling device for water pollution detection includes a floating platform, on which a temporary storage water tank is fixed. It also includes a connecting rod, a liquid pumping mechanism, a filtering mechanism, and an anti-blocking mechanism. The connecting rod is vertically fixed at the bottom of the floating platform. The liquid pumping mechanism and the filtering mechanism are fixed on the connecting rod, and the liquid outlet end of the liquid pumping mechanism is connected to the filtering mechanism. The anti-blocking mechanism is arranged in the liquid pumping mechanism. The liquid pumping mechanism includes a waterproof motor, a connecting frame, and multiple pumping rings. The multiple pumping rings are fixed on the connecting frame at equal intervals along the axis direction of the waterproof motor. The connecting frame is fixedly connected to the connecting rod. An inlet is formed between every two pumping rings. A propeller is fixed in each pumping ring. The propeller is coaxially fixedly connected to the output shaft of the waterproof motor. The axis of the propeller is the same as the axis of the pumping ring. The propeller is used to make the liquid flow from the inlet into the filtering mechanism. The anti-blocking mechanism includes a rotary cutter group. The rotary cutter group is rotatably installed at the inlet. The rotary cutter group is coaxially connected to the propeller, and the end of the rotary cutter group is located outside the inlet.

[0006] Preferably, the rotary cutter group includes a cutter holder. The cutter holder is coaxially fixedly connected to the propeller. A circular cutter blade is fixed at the end of the cutter holder. The cutting edge of the circular cutter blade is located outside the inlet.

[0007] Preferably, multiple cleaning grooves are provided on the connecting frame. The cleaning grooves are arranged corresponding to the inlets one by one. A grinding frame is fixed in the cleaning groove. An avoidance port allowing the cutter holder to pass through smoothly is opened at the bottom of the grinding frame. A grinding port is opened above the avoidance port. Inclined grinding pieces are fixed on both sides of the grinding port. When the cutter holder enters the avoidance port, the cutting edge of the circular cutter blade can be in contact with the grinding pieces.

[0008] Preferably, the grinding pieces are connected to the grinding port through elastic members.

[0009] Preferably, the filtering mechanism includes a liquid inlet box. A liquid outlet box is fixed on the top of the liquid inlet box. The liquid outlet box is communicated with the temporary storage water tank through a hose. An arc-shaped filter net is fixed between the liquid inlet box and the liquid outlet box. An impeller is also installed at the liquid inlet end of the liquid inlet box. The impeller is coaxially fixedly connected to the output shaft of the waterproof motor. The impeller is used to press the liquid in the liquid inlet box into the liquid outlet box.

[0010] Preferably, a rod holder and a cleaning rod are further provided in the liquid inlet box. The rod holder is coaxially and fixedly connected to the output shaft of the waterproof motor. The cleaning rod is fixed on the rod holder and is slidably connected to the inner wall of the liquid inlet box. The waterproof motor can drive the cleaning rod to move along the inner wall of the liquid inlet box to the surface of the arc-shaped filter screen to clean the surface of the arc-shaped filter screen.

[0011] Preferably, a slag discharge port is further opened at the bottom of the liquid inlet box. The cleaning rod is inclined. When the cleaning rod moves along the inner wall of the liquid inlet box, it can push the residue at the bottom of the liquid inlet box towards the slag discharge port.

[0012] Preferably, the connecting rod is a telescopic connecting rod.

[0013] Preferably, a refrigeration box is further installed on the floating platform. The temporary storage water tank is snap-fitted in the refrigeration box. A semiconductor refrigeration sheet is fixed on the inner wall of the refrigeration box. A solar panel for supplying power to the semiconductor refrigeration sheet is also fixed on the surface of the floating platform.

[0014] The beneficial effect of the present invention is that a blockage prevention mechanism is provided. When the liquid pumping mechanism is put into sewage for sampling, the sewage often contains floating objects such as waterweeds and garbage, so it is easy to block the liquid pumping mechanism. At this time, the waterproof motor rotates to drive the rotary cutter group to rotate, so that the circular blade moves in the liquid inlet between the two pumping rings. When the floating object stays at the liquid inlet, the moving circular blade can push aside the floating object to prevent the floating object from blocking the liquid inlet. When the floating object is tightly stuck and difficult to push aside, the blade can also cut the floating object at the liquid inlet so that the liquid can continue to be sucked into the liquid inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained according to the provided drawings without creative efforts.

[0016] Figure 1 is a schematic structural diagram of the optimal embodiment of a sampling device for water pollution detection according to the present invention;

[0017] Figure 2 is a schematic structural diagram of the connecting rod of a sampling device for water pollution detection according to the present invention;

[0018] Figure 3 is a schematic structural diagram of the connecting frame of a sampling device for water pollution detection according to the present invention;

[0019] Figure 4It is a schematic structural diagram of the arc filter screen of a sampling device for water pollution detection according to the present invention;

[0020] Figure 5 It is a schematic structural diagram of the liquid inlet box of a sampling device for water pollution detection according to the present invention;

[0021] Figure 6 It is a schematic structural diagram of the water pumping ring of a sampling device for water pollution detection according to the present invention;

[0022] Figure 7 It is a schematic structural diagram of the grinding frame of a sampling device for water pollution detection according to the present invention.

[0023] Reference numerals: 1, floating platform; 2, temporary water tank; 3, connecting rod; 4, liquid pumping mechanism; 5, filtering mechanism; 6, anti-blocking mechanism; 7, waterproof motor; 8, connecting frame; 9, water pumping ring; 10, liquid inlet; 11, propeller; 12, rotary cutter group; 13, circular blade; 14, grinding frame; 15, avoidance port; 16, grinding sheet; 17, liquid inlet box; 18, liquid outlet box; 19, hose; 20, arc filter screen; 21, impeller; 22, rod frame; 23, cleaning rod; 24, slag discharge port; 25, refrigerated box; 26, solar panel. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0025] First, the concepts involved in the present application will be described in conjunction with the accompanying drawings. It should be noted here that the following descriptions of each concept are only for making the content of the present application easier to understand, and do not represent a limitation on the protection scope of the present application; at the same time, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0026] Such as Figures 1 to 7As shown in the figure, the present invention provides an embodiment of a sampling device for water pollution detection, including a floating platform 1, a temporary storage water tank 2 is fixed on the floating platform 1, and further includes a connecting rod 3, a liquid pumping mechanism 4, a filtering mechanism 5 and an anti-blocking mechanism 6. The connecting rod 3 is vertically fixed at the bottom of the floating platform 1, the liquid pumping mechanism 4 and the filtering mechanism 5 are fixed on the connecting rod 3. The connecting rod 3 is a telescopic connecting rod. By adjusting the length of the connecting rod 3, the liquid pumping mechanism 4 can be lowered to different depths below the liquid surface so as to sample water sources at multiple depths. And the liquid outlet end of the liquid pumping mechanism 4 is connected to the filtering mechanism 5, and the anti-blocking mechanism 6 is arranged in the liquid pumping mechanism 4.

[0027] The liquid pumping mechanism 4 includes a waterproof motor 7, a connecting frame 8 and a plurality of pumping rings 9. The plurality of pumping rings 9 are fixed on the connecting frame 8 at equal intervals along the axis direction of the waterproof motor 7. The connecting frame 8 is fixedly connected to the connecting rod 3. An inlet 10 is formed between every two pumping rings 9. The distance between the plurality of pumping rings 9 is small, so a structure similar to a filter plate can be formed to achieve the effect of primary filtering of sewage and prevent large floating objects from blocking the liquid pumping mechanism 4. A propeller 11 is fixed in each pumping ring 9. The propeller 11 is coaxially fixedly connected to the output shaft of the waterproof motor 7. The axis of the propeller 11 is the same as the axis of the pumping ring 9. The propeller 11 is used to make the liquid flow from the inlet 10 into the filtering mechanism 5. Since there is a certain distance between each inlet 10 and the filtering mechanism 5, in order to prevent the slow sewage sampling efficiency caused by insufficient suction capacity of the filtering mechanism 5, in this application, by setting a plurality of propellers 11, the liquid at the inlet 10 can be conveyed along the axis direction of the pumping ring 9 to the filtering mechanism 5. A structure similar to a cylindrical shape is formed between the plurality of pumping rings 9. During the process of the plurality of propellers 11 conveying the liquid, a negative pressure environment is formed inside the plurality of pumping rings 9, making it easier for the liquid outside the pumping ring 9 to enter the inlet 10.

[0028] The anti-blocking mechanism 6 includes a rotary cutter group 12. The rotary cutter group 12 is rotatably installed at the inlet 10. The rotary cutter group 12 is coaxially connected to the propeller 11. The end of the rotary cutter group 12 is located outside the inlet 10. The rotary cutter group 12 includes a cutter holder. The cutter holder is coaxially fixedly connected to the propeller 11. A circular blade 13 is fixed at the end of the cutter holder. The cutting edge of the circular blade 13 is located outside the inlet 10.

[0029] The working principle of the anti-clogging mechanism 6 is as follows: When the liquid extraction mechanism 4 is placed in sewage for sampling, the sewage often contains floating substances such as waterweeds and garbage, so it is easy to clog the liquid extraction mechanism 4. At this time, the waterproof motor 7 rotates to drive the rotary cutter group 12 to rotate. When the rotary cutter group 12 rotates, the circular blade 13 moves in the liquid inlet 10 between the two pumping rings 9. When the floating substance stays at the liquid inlet 10, the moving circular blade 13 can push aside the floating substance to prevent the floating substance from blocking the liquid inlet 10. And when the floating substance is tightly stuck and difficult to push aside, the blade can also cut through the floating substance at the liquid inlet 10 so that the liquid can continue to be sucked into the liquid inlet 10.

[0030] Since the circular blade 13 is in the process of cutting floating substances in water for a long time, some floating substances will adhere to the surface of the circular blade 13 or cause wear on the edge of the circular blade 13, so the cutting ability of the circular blade 13 will decline. In order to keep the edge of the circular blade 13 sharp, there are multiple cleaning grooves on the connecting frame 8 set in this application. The cleaning grooves are arranged in one-to-one correspondence with the liquid inlets 10. A grinding frame 14 is fixed in the cleaning groove. An avoidance opening 15 through which the tool holder can pass smoothly is opened at the bottom of the grinding frame 14. A grinding opening is opened above the avoidance opening 15. Inclined grinding pieces 16 are fixed on both sides of the grinding opening. When the tool holder enters the avoidance opening 15, the edge of the circular blade 13 can abut against the grinding pieces 16. After the circular blade 13 abuts against the grinding pieces 16, during the movement of the circular blade 13, the circular blade 13 will rub against the grinding pieces 16. The adhesive substances adhering to the edge of the circular blade 13 are removed by the grinding pieces 16 and the circular blade 13 is polished to keep the circular blade 13 sharp.

[0031] The grinding pieces 16 are connected to the grinding opening through elastic members, so that during the movement of the circular blade 13 between the two grinding pieces 16 on both sides, the edge of the circular blade 13 can always be in contact with the grinding pieces 16, so that the grinding pieces 16 can clean and polish the edge of the circular blade 13 to keep the circular blade 13 sharp.

[0032] The filtering mechanism 5 includes a liquid inlet box 17. An outlet liquid box 18 is fixed on the top of the liquid inlet box 17. The outlet liquid box 18 is connected to the temporary storage water tank 2 through a hose 19. An arc-shaped filter net 20 is fixed between the liquid inlet box 17 and the outlet liquid box 18. An impeller 21 is also installed at the liquid inlet end of the liquid inlet box 17. The impeller 21 is coaxially and fixedly connected to the output shaft of the waterproof motor 7. The impeller 21 is used to press the liquid in the liquid inlet box 17 into the outlet liquid box 18. When the impeller 21 works, a large amount of liquid can quickly enter the liquid inlet box 17, increasing the water pressure in the liquid inlet box 17. Then the liquid can be pressed into the outlet liquid box 18 above the liquid inlet box 17 and transported to the temporary storage water tank 2 through the hose 19 to complete the sampling work of the water body. The sample water is stored in the temporary storage water tank 2 to prevent the sample from being contaminated again.

[0033] Inside the liquid inlet box 17, there is also a rod holder 22 and a cleaning rod 23. The rod holder 22 is fixedly connected coaxially with the output shaft of the waterproof motor 7. The cleaning rod 23 is fixed on the rod holder 22 and is slidably connected to the inner wall of the liquid inlet box 17. The waterproof motor 7 can drive the cleaning rod 23 to move along the inner wall of the liquid inlet box 17 to the surface of the arc-shaped filter net 20, and clean the surface of the arc-shaped filter net 20 to prevent the filter net from being blocked by sundries.

[0034] At the bottom of the liquid inlet box 17, there is also a slag discharge port 24. The cleaning rod 23 is inclined. After the sewage flows into the liquid inlet box 17, some of the sediment in the water and the dirt cleaned by the cleaning rod 23 will accumulate at the bottom of the liquid inlet box 17 under the action of gravity. In order to keep the inside of the liquid inlet box 17 clean, when the cleaning rod 23 moves along the inner wall of the liquid inlet box 17, the inclined cleaning rod 23 can push the residue at the bottom of the liquid inlet box 17 towards the slag discharge port 24, achieving an effect similar to a screw feeder. And when the impeller 21 rotates, it will also push the water flow in the liquid inlet box 17 towards the direction of the slag discharge port 24, preventing sundries from accumulating in the liquid inlet box 17 and keeping the inside of the liquid inlet box 17 clean.

[0035] A refrigeration box 25 is also installed on the floating platform 1. The temporary storage water tank 2 is snap-fitted into the refrigeration box 25. A semiconductor refrigeration sheet is fixed to the inner wall of the refrigeration box 25. A solar panel 26 for supplying power to the semiconductor refrigeration sheet is also fixed to the surface of the floating platform 1. After the water body sample is extracted into the temporary storage water tank 2, if the temperature is too high, it may cause a large number of microorganisms in the water to multiply, resulting in the deterioration of the water body sample. In this application, through the semiconductor refrigeration sheet and the refrigeration box 25, the water body sample entering the temporary storage water tank 2 is refrigerated to prevent the water body sample from deteriorating after extraction, extending the storage time of the water body sample and improving the storage quality of the water body sample.

[0036] In this article, specific examples are used to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. The above is only the preferred implementation manner of this application. It should be noted that due to the limitation of literal expression, and objectively there are infinite specific structures. For those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements, refinements or changes can also be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the inventive concept and technical solution to other occasions without improvement, should all be regarded as the protection scope of this application.

Claims

1. A sampling device for water pollution detection, comprising a floating platform (1), a temporary water storage tank (2) fixed on the floating platform (1), characterized in that: It also includes a connecting rod (3), a liquid pumping mechanism (4), a filtering mechanism (5) and an anti-blocking mechanism (6), wherein the connecting rod (3) is vertically fixed to the bottom of the floating platform (1), the liquid pumping mechanism (4) and the filtering mechanism (5) are fixed on the connecting rod (3), and the liquid outlet end of the liquid pumping mechanism (4) is connected to the filtering mechanism (5), and the anti-blocking mechanism (6) is arranged in the liquid pumping mechanism (4); The pumping mechanism (4) comprises a waterproof motor (7), a connecting frame (8) and a plurality of pumping rings (9), wherein the plurality of pumping rings (9) are fixed on the connecting frame (8) at equal intervals along the axial direction of the waterproof motor (7), the connecting frame (8) is fixedly connected to the connecting rod (3), a liquid inlet (10) is formed between every two pumping rings (9), a propeller (11) is fixed in each pumping ring (9), the propeller (11) is coaxially fixedly connected to the output shaft of the waterproof motor (7), the axis of the propeller (11) is the same as the axis of the pumping ring (9), and the propeller (11) is used to make the liquid flow from the liquid inlet (10) into the filtering mechanism (5); The anti-blocking mechanism (6) comprises a rotating knife group (12), the rotating knife group (12) is rotatably mounted at the liquid inlet (10), the rotating knife group (12) is coaxially connected to the propeller (11), and the end of the rotating knife group (12) is located outside the liquid inlet (10); The filtering mechanism (5) comprises a liquid inlet box (17), a liquid outlet box (18) is fixed on the top of the liquid inlet box (17), the liquid outlet box (18) is connected to the temporary water tank (2) through a hose (19), a circular arc filter (20) is fixed between the liquid inlet box (17) and the liquid outlet box (18), and an impeller (21) is also installed at the liquid inlet end of the liquid inlet box (17), the impeller (21) is coaxially fixedly connected to the output shaft of the waterproof motor (7), and the impeller (21) is used to press the liquid in the liquid inlet box (17) into the liquid outlet box (18).

2. A sampling device for water pollution detection according to claim 1, characterized in that: The rotating knife assembly (12) comprises a knife holder, which is coaxially fixedly connected to the propeller (11). A circular blade (13) is fixed to the end of the knife holder, and the cutting edge of the circular blade (13) is located outside the liquid inlet (10).

3. A sampling device for water pollution detection according to claim 2, characterized in that: The connecting frame (8) is provided with a plurality of cleaning grooves, and the cleaning grooves are arranged in a one-to-one correspondence with the liquid inlet (10). A grinding frame (14) is fixed in the cleaning groove. A avoidance opening (15) is provided at the bottom of the grinding frame (14) to allow the tool holder to pass smoothly. A grinding opening is provided above the avoidance opening (15). Inclined grinding sheets (16) are fixed on both sides of the grinding opening. When the tool holder enters the avoidance opening (15), the cutting edge of the circular blade (13) abuts against the grinding sheet (16).

4. A sampling device for water pollution detection according to claim 3, characterized in that: The grinding plate (16) is connected to the grinding opening via an elastic member.

5. The sampling device for water pollution detection according to claim 1, characterized in that: A rod frame (22) and a cleaning rod (23) are further provided in the liquid inlet box (17). The rod frame (22) is coaxially fixedly connected to the output shaft of the waterproof motor (7). The cleaning rod (23) is fixed on the rod frame (22) and is slidably connected to the inner wall of the liquid inlet box (17). The waterproof motor (7) can drive the cleaning rod (23) to move along the inner wall of the liquid inlet box (17) to the surface of the arc filter (20) to clean the surface of the arc filter (20).

6. A sampling device for water pollution detection according to claim 5, characterized in that: The bottom of the liquid inlet box (17) is also provided with a slag discharge port (24), and the cleaning rod (23) is arranged at an angle. When the cleaning rod (23) moves along the inner wall of the liquid inlet box (17), it can push the residue at the bottom of the liquid inlet box (17) to move toward the slag discharge port (24).

7. The sampling device for water pollution detection according to claim 1, characterized in that: The connecting rod (3) is a telescopic connecting rod.

8. The sampling device for water pollution detection according to claim 1, characterized in that: A refrigeration box (25) is also installed on the floating platform (1), the temporary water tank (2) is engaged in the refrigeration box (25), a semiconductor refrigeration sheet is fixed to the inner wall of the refrigeration box (25), and a solar cell panel (26) for supplying power to the semiconductor refrigeration sheet is also fixed to the surface of the floating platform (1).

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