Sampling device for water pollution detection

Abstract

The invention relates to the technical field of water pollution detection, and particularly provides a sampling device for water pollution detection, the sampling device comprises 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 at the bottom of the floating platform, and the liquid pumping mechanism and the filtering mechanism are fixed on the connecting rod; the liquid pumping mechanism comprises a waterproof motor, a connecting frame and a plurality of water pumping rings, a liquid inlet is formed between every two water pumping rings, a propeller is fixed in each water pumping ring, the propellers are coaxially and fixedly connected with an output shaft of the waterproof motor, the axes of the propellers are the same as the axes of the water pumping rings, and the propellers are used for enabling liquid to flow into the filtering mechanism from the liquid inlets; the anti-blocking mechanism comprises a rotary cutter set, the rotary cutter set is rotatably installed at the liquid inlet and coaxially connected with the propeller, the end of the rotary cutter set is located on the outer side of the liquid inlet, and the liquid pumping mechanism is prevented from being blocked by sundries in the sampling process through cooperation of the liquid pumping mechanism and the anti-blocking mechanism.

Description

Technical Field

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

[0002] Excessive amounts of suspended solids in normal waters, organic concentrations in wastewater, pH values, and bacterial content in sewage will lead to the destruction of the natural cycle in the waters. For water quality testing operations, when sampling at different locations in large waters or waters with high water flow rates, it is difficult for suspended tools to quickly sink sample water. At the same time, water with high flow rates will also cause existing sampling tools to generate greater resistance in deep water and are prone to clogging, resulting in the need to lift and clean them multiple times before sampling, which is very cumbersome.

[0003] The water pollution monitoring sampling equipment with the patent document publication number CN220170636U includes a water tank, a box cover is movably provided on the upper side of the water tank, two groups of vertical plates are fixedly provided on the upper side of the box cover, a rotating rod is rotatably provided between the two groups of vertical plates, a rotating drum is fixedly provided on the outer side of the rotating rod, a driving block is fixedly provided on the outer side of the rotating drum, a mounting plate is movably provided on the lower side of the driving block, a cleaning ring is movably provided on the inner side of the water tank, two groups of connecting rods are provided on the upper side of the cleaning ring, and the upper end of the connecting rod is located on the upper part of the box cover and fixedly connected to the mounting plate, a reset spring is movably provided 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 mounting plate. However, this patent still has some shortcomings: 1. When extracting water samples, the water inlet is easily blocked by larger debris in the water body, resulting in sampling difficulties; 2. The sample taken out is difficult to preserve. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the problem that it is difficult to clean up the debris near the water inlet and avoid the blockage of the water inlet, the present invention provides a sampling device for water pollution detection to solve the above problem.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a sampling device for water pollution detection, including a floating platform, a temporary water tank fixed on the floating platform, and also including a connecting rod, a pumping mechanism, a filtering mechanism and an anti-blocking mechanism, the connecting rod is vertically fixed to the bottom of the floating platform, the pumping mechanism and the filtering mechanism are fixed on the connecting rod, and the liquid outlet end of the pumping mechanism is connected to the filtering mechanism, and the anti-blocking mechanism is arranged in the pumping mechanism; the pumping mechanism includes a waterproof motor, a connecting frame and a plurality of pumping rings, and the plurality of pumping rings are arranged along the axis direction of the waterproof motor, etc. The spacing is fixed on the connecting frame, the connecting frame is fixedly connected to the connecting rod, a liquid inlet is formed between every two water pumping rings, a propeller is fixed in each water 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 water pumping ring, and the propeller is used to make the liquid flow from the liquid inlet to the filtering mechanism; the anti-blocking mechanism includes a rotating knife group, the rotating knife group is rotatably installed at the liquid inlet, the rotating knife group is coaxially connected to the propeller, and the end of the rotating knife group is located on the outside of the liquid inlet.

[0006] Preferably, the rotating knife assembly comprises a knife holder, which is coaxially fixedly connected to the propeller, and a circular blade is fixed to the end of the knife holder, and the cutting edge of the circular blade is located on the outside of the liquid inlet.

[0007] Preferably, a plurality of cleaning grooves are provided on the connecting frame, and the cleaning grooves are arranged one-to-one corresponding to the liquid inlets. A grinding frame is fixed in the cleaning groove, and an avoidance opening is provided at the bottom of the grinding frame to allow the tool holder to pass smoothly, and a grinding opening is provided above the avoidance opening. Inclined grinding sheets are fixed on both sides of the grinding opening, and when the tool holder enters the avoidance opening, the cutting edge of the circular blade can abut against the grinding sheet.

[0008] Preferably, the grinding sheet is connected to the grinding port via an elastic member.

[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 connected to the temporary water tank through a hose, a circular arc filter is fixed between the liquid inlet box and the liquid outlet box, and 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, and the impeller is used to press the liquid in the liquid inlet box into the liquid outlet box.

[0010] Preferably, a rod rack and a cleaning rod are also provided in the liquid inlet box, the rod rack is coaxially fixedly connected to the output shaft of the waterproof motor, the cleaning rod is fixed on the rod rack and is slidably connected to the inner wall of the liquid inlet box, and 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 filter screen to clean the surface of the arc filter screen.

[0011] Preferably, a slag discharge port is provided at the bottom of the liquid inlet box, and the cleaning rod is arranged at an angle, so that when the cleaning rod moves along the inner wall of the liquid inlet box, the residue at the bottom of the liquid inlet box can be pushed to move toward the slag discharge port.

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

[0013] Preferably, a refrigeration box is installed on the floating platform, the temporary water tank is engaged in the refrigeration box, a semiconductor refrigeration sheet is fixed to the inner wall of the refrigeration box, and a solar panel for powering the semiconductor refrigeration sheet is fixed to the surface of the floating platform.

[0014] The beneficial effect of the present invention is that an anti-blocking mechanism is provided. When the liquid extraction mechanism is placed in sewage for sampling, the sewage often contains floating objects such as aquatic plants and garbage, so it is easy to block the liquid extraction mechanism. At this time, the rotating knife group is driven to rotate by the rotation of the waterproof motor, so that the circular blade moves in the liquid inlet between the two pumping rings. When the floating objects stay at the liquid inlet, the moving circular blade can push the floating objects away to prevent the floating objects from blocking the liquid inlet. When the floating objects are stuck and difficult to push away, the blade can also cut the floating objects 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 implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

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

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

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

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

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

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

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

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

[0024] 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.

[0025] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0026] like Figures 1 to 7As shown, the present invention provides an embodiment of a sampling device for water pollution detection, comprising a floating platform 1, a temporary water tank 2 is fixed on the floating platform 1, and also comprising 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, and the liquid pumping mechanism 4 and the filtering mechanism 5 are fixed on the connecting rod 3. The connecting rod 3 is a retractable 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. In addition, 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 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 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. The spacing between the plurality of pumping rings 9 is small, so that a structure similar to a filter plate can be formed to achieve the effect of primary filtration of sewage and prevent larger floating objects from blocking the 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 aligned with the axis of the pumping ring 9. The line is the same, the propeller 11 is used to make the liquid flow from the liquid inlet 10 to the filter mechanism 5. Since there is a certain distance between each liquid inlet 10 and the filter mechanism 5, in order to prevent the insufficient suction capacity of the filter mechanism 5 from causing slow sewage sampling efficiency, the present application sets a plurality of propellers 11, which can transport the liquid at the liquid inlet 10 to the filter mechanism 5 along the axial direction of the pumping ring 9, and form a cylindrical structure between the plurality of pumping rings 9. In the process of transporting liquid by the plurality of propellers 11, a negative pressure environment is formed on the inner side of the plurality of pumping rings 9, so that the liquid on the outer side of the pumping ring 9 can enter the liquid inlet 10 more easily.

[0028] The anti-blocking mechanism 6 includes a rotating knife group 12, which is rotatably installed 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 on the outside of the liquid inlet 10. The rotating knife group 12 includes a knife holder, which is coaxially fixedly connected to the propeller (11), and a circular blade 13 is fixed to the end of the knife holder, and the cutting edge of the circular blade 13 is located on the outside of the liquid inlet 10.

[0029] The working principle of the anti-blocking mechanism 6 is: when the liquid extraction mechanism 4 is placed in the sewage for sampling, the sewage often contains floating objects such as aquatic plants and garbage, so it is easy to block the liquid extraction mechanism 4. At this time, the waterproof motor 7 rotates to drive the rotating knife group 12 to rotate. When the rotating knife group 12 rotates, the circular blade 13 moves in the liquid inlet 10 between the two water extraction rings 9. When the floating objects stay at the liquid inlet 10, the moving circular blade 13 can push the floating objects away to prevent the floating objects from blocking the liquid inlet 10. When the floating objects are stuck and difficult to push away, the blade can also cut the floating objects at the liquid inlet 10 so that the liquid can continue to be sucked into the liquid inlet 10.

[0030] During the long-term cutting process of floating objects in the water by the circular blade 13, some floating objects will adhere to the surface of the circular blade 13 or cause the cutting edge of the circular blade 13 to be worn, which will cause the cutting ability of the circular blade 13 to decrease. In order to keep the cutting edge of the circular blade 13 sharp, the connecting frame 8 provided in the present application is provided with a plurality of cleaning grooves, and the cleaning grooves are provided one by one with the liquid inlet 10. A grinding frame 14 is fixed in the cleaning groove, and an avoidance opening 15 is provided at the bottom of the grinding frame 14 to allow the knife holder to pass smoothly. A grinding opening is provided above the avoidance opening 15, and 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 can abut against the grinding sheet 16. After the circular blade 13 abuts against the grinding sheet 16, the circular blade 13 will rub against the grinding sheet 16 during the movement of the circular blade 13. The grinding sheet 16 will remove the adhesive on the cutting edge of the circular blade 13 and grind the circular blade 13 to keep the circular blade 13 sharp.

[0031] The grinding sheet 16 is connected to the grinding port through an elastic member, so that when the circular blade 13 moves between the grinding sheets 16 on both sides, the cutting edge of the circular blade 13 can always keep in contact with the grinding sheet 16, so that the grinding sheet 16 can clean and grind the cutting edge of the circular blade 13 to keep the circular blade 13 sharp.

[0032] The filtering mechanism 5 includes 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, an arc filter screen 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. When the impeller 21 is working, a large amount of liquid can be quickly entered into the liquid inlet box 17, so that the water pressure in the liquid inlet box 17 is increased, and then the liquid can be pressed into the liquid outlet box 18 above the liquid inlet box 17 and transported to the temporary water tank 2 through the hose 19, completing the sampling of the water body, and the sample water is stored by the temporary water tank 2 to prevent the sample from being contaminated again.

[0033] A rod frame 22 and a cleaning rod 23 are also 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 screen 20 to clean the surface of the arc filter screen 20 to prevent the filter screen from being blocked by debris.

[0034] A slag discharge port 24 is also provided at the bottom of the liquid inlet box 17, and the cleaning rod 23 is arranged at an angle. After the sewage flows into the liquid inlet box 17, some of the mud and sand 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 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 to move toward the slag discharge port 24, which has an effect similar to that of a spiral feeder, and the impeller 21 will also push the water flow in the liquid inlet box 17 to move toward the slag discharge port 24 when rotating, so as to prevent debris from accumulating in the liquid inlet box 17 and keep the inside of the liquid inlet box 17 clean.

[0035] A refrigeration box 25 is also installed on the floating platform 1, and 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 panel 26 for powering the semiconductor refrigeration sheet is also fixed to the surface of the floating platform 1. After the water sample is extracted into the temporary water tank 2, if the temperature is high, it may cause a large number of microorganisms in the water to multiply, causing the water sample to deteriorate. In the present application, the semiconductor refrigeration sheet and the refrigeration box 25 are used to refrigerate the water sample entering the temporary water tank 2 to prevent the water sample from deteriorating after extraction, thereby extending the storage time of the water sample and improving the storage quality of the water sample.

[0036] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above are only preferred implementation methods of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A sampling device for water pollution detection, comprising a floating platform (1), on which a temporary water storage tank (2) is fixed, characterized in that: It also comprises 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); 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 of the pumping rings (9); a propeller (11) is fixed in each of the pumping rings (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 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).

2. A sampling device for water pollution detection as claimed in claim 1, characterized in that: The rotating knife assembly (12) comprises a knife holder, which is coaxially fixedly connected to the propeller (11), and 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 as claimed in claim 2, characterized in that: The connecting frame (8) is provided with a plurality of cleaning grooves, the cleaning grooves being arranged one-to-one corresponding to the liquid inlet (10), a grinding frame (14) being fixed in the cleaning groove, a avoidance opening (15) being provided at the bottom of the grinding frame (14) for allowing the tool holder to pass smoothly, a grinding opening being provided above the avoidance opening (15), and obliquely arranged grinding sheets (16) being fixed on both sides of the grinding opening, and 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 as claimed in claim 3, characterized in that: The grinding sheet (16) is connected to the grinding opening via an elastic member.

5. A sampling device for water pollution detection as claimed in claim 1, characterized in that: 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 screen (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).

6. A sampling device for water pollution detection as claimed in claim 1, characterized in that: A rod frame (22) and a cleaning rod (23) are also 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 circular arc filter (20) to clean the surface of the circular arc filter (20).

7. A sampling device for water pollution detection as claimed in claim 6, 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).

8. A sampling device for water pollution detection as claimed in claim 1, characterized in that: The connecting rod (3) is a telescopic connecting rod.

9. A sampling device for water pollution detection as claimed in 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 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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