Water sampling structure for water quality detector

Abstract

The utility model discloses a water body sampling structure for a water quality detector, which comprises a floating plate, a balancing weight is arranged below the floating plate, a lifting component for adjusting the height of the balancing weight is arranged on the floating plate, and a depth sensor is arranged on the balancing weight; a water pump is arranged on the upper side of the floating plate, the water pumping end of the water pump communicates with a hose, and the lower end of the hose is fixed to the balancing weight. The device has the beneficial effects that the structure can be placed on the water surface by arranging the floating plate, the balancing weight is lowered through the lifting assembly, so that the depth of the lower end of the hose is adjusted, original water in the hose is discharged through cooperation of the water pump, the two electromagnetic valves and the three-way pipe, water at different depths is prevented from being mixed, the sample purity is ensured, and the accurate detection result is ensured; the balancing weight is continuously moved downwards through the lifting assembly, the depth of the lower end of the hose is adjusted, the placing frame is rotated through the rotating assembly, and the other measuring cup corresponds to the end of the three-way pipe, so that water samples at different depths are continuously extracted, and the sampling efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental detection, in particular to a water body sampling structure of a water quality detector. Background Art

[0002] The current water sampling device needs to extract water samples at different depths one by one. After extracting a water sample, the sampler needs to be lifted out of the water, the sample is released, and then put back into the water for sampling. The operation is cumbersome and inefficient. In addition, when the sampler passes through water bodies of different depths, water samples of different depths will accumulate in its sampling port, resulting in mixed sources of samples, affecting the accuracy of detection. Utility Model Content

[0003] The purpose of the present invention is to provide a water sampling structure for a water quality detector in order to solve the above-mentioned problems, as described below.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a water quality detector using a water body sampling structure, comprising a floating plate, a counterweight block is arranged under the floating plate, a lifting assembly for adjusting the height of the counterweight block is arranged on the floating plate, and a depth sensor is arranged on the counterweight block;

[0006] A water pump is arranged on the upper side of the floating plate, and a hose is connected to the water pumping end of the water pump, and the lower end of the hose is fixed on the counterweight block. A placing rack and a rotating assembly for rotating the placing rack are rotatably arranged on the floating plate, and a number of measuring cups are placed on the rotating assembly, and the measuring cups are distributed in a ring shape with the water pump as the center. A three-way pipe is connected to the output end of the water pump, and one end of the two output ends of the three-way pipe corresponds to the measuring cup, and the other end is offset from the upper side of the floating plate, and two solenoid valves are arranged on the three-way pipe for independently controlling the opening and closing of the two output ends of the three-way pipe.

[0007] The water body sampling structure of the water quality detector mentioned above is adopted, the floating plate is placed on the water surface, the counterweight block is lowered by the lifting assembly, the hose is brought into the water by the counterweight block, the depth of the lower end of the hose can be known by the depth sensor, after reaching the specified depth, the original water in the hose is first discharged by the water pump to avoid mixing of water at different depths, and the two solenoid valves are coordinated to close one end of the three-way pipe corresponding to the measuring cup and open the other end, and the water is pumped out by the water pump to discharge the water in the hose through the three-way pipe, and then the solenoid valve is used to open one end of the three-way pipe corresponding to the measuring cup and the other end is closed, and the pumped water will be discharged into the measuring cup for sampling;

[0008] Finally, the counterweight block is continued to be moved downward by the lifting assembly to adjust the depth of the lower end of the hose. When sampling at different depths, the above operation of emptying the water in the hose must be repeated. Then, the placement rack is rotated by the rotating assembly so that the other measuring cup corresponds to the end of the three-way pipe, thereby realizing the continuous extraction of water samples at different depths.

[0009] Preferably, a telescopic rod is provided on the floating plate, one end of the telescopic rod is hinged to the floating plate, and the other end of the telescopic rod is provided with a handle.

[0010] Preferably, the counterweight block is an inverted cone, the hose passes through the center axis of the counterweight block, and a filter is threadedly connected to the lower end of the hose.

[0011] Preferably, the rotating assembly comprises an inner gear ring, the inner gear ring is rotatably arranged on a floating plate, a motor is arranged on the floating plate, a gear is arranged on an output shaft of the motor, and the gear is meshed with the inner gear ring.

[0012] Preferably, the placement rack comprises a mounting ring, the mounting ring is arranged on the inner gear ring, a plurality of fixing sleeves are arranged on the mounting ring, and measuring cups are placed in the fixing sleeves.

[0013] Preferably, the lifting assembly comprises a dual-axis motor, and winding wheels are provided on both output shafts of the dual-axis motor. A pull rope is connected to the winding wheel, and the other end of the pull rope passes through the floating plate and is fixed to the counterweight block.

[0014] Preferably, the two pull ropes are symmetrical to each other with the axis of the counterweight block as the center.

[0015] Preferably, a battery is provided on the floating plate.

[0016] The beneficial effects are:

[0017] By setting a floating plate, the structure can be placed on the water surface, and the counterweight block is lowered through the lifting assembly to adjust the depth of the lower end of the hose. The original water in the hose is discharged through the cooperation of the water pump, two solenoid valves and the three-way pipe to avoid mixing of water at different depths, ensure the purity of the sample, and ensure accurate test results. The extracted water is discharged into a measuring cup for sampling, and the counterweight block is further moved downward through the lifting assembly to adjust the depth of the lower end of the hose. The placement frame is rotated by the rotating assembly to make the other measuring cup correspond to the end of the three-way pipe, thereby realizing continuous extraction of water samples at different depths and significantly improving the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a front view structural diagram of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the counterweight block of the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the floating plate of the utility model.

[0023] The following are the descriptions of the reference numerals:

[0024] 1. Float; 2. Telescopic rod; 3. Handle; 4. Lifting assembly; 5. Counterweight; 6. Depth sensor; 7. Hose; 8. Pull rope; 9. Dual-axis motor; 10. Reel; 11. Water pump; 12. Tee; 13. Solenoid valve; 14. Storage rack; 15. Measuring cup; 16. Battery; 17. Rotating assembly; 18. Filter; 19. Inner gear ring; 20. Gear; 21. Motor; 22. Mounting ring; 23. Fixing sleeve. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 As shown, the utility model provides a water body sampling structure for a water quality detector, including a floating plate 1, a counterweight block 5 is arranged under the floating plate 1, a lifting assembly 4 for adjusting the height of the counterweight block 5 is arranged on the floating plate 1, and a depth sensor 6 is arranged on the counterweight block 5. The operator can know the position depth of the lower end of the hose 7 through the depth sensor 6, so as to realize water sampling at different depths;

[0027] A water pump 11 is arranged on the upper side of the floating plate 1, and a hose 7 is connected to the water pumping end of the water pump 11, and the lower end of the hose 7 is fixed on the counterweight 5. A placing frame 14 and a rotating assembly 17 for rotating the placing frame 14 are rotatably arranged on the floating plate 1, and a plurality of measuring cups 15 are placed on the rotating assembly 17, and the plurality of measuring cups 15 are distributed in a ring shape with the water pump 11 as the center. A three-way pipe 12 is connected to the output end of the water pump 11, and one end of the two output ends of the three-way pipe 12 corresponds to the measuring cup 15, and the other end is offset from the upper side of the floating plate 1, and two solenoid valves 13 are arranged on the three-way pipe 12 for independently controlling the opening and closing of the two output ends of the three-way pipe 12;

[0028] The depth of the lower end of the hose 7 can be known through the depth sensor 6. When the specified depth is reached, the original water in the hose 7 is first discharged through the water pump 11 to avoid mixing of water at different depths. Through the cooperation of the two solenoid valves 13, the end of the three-way pipe 12 corresponding to the measuring cup 15 is closed, and the other end is opened. Water is pumped by the water pump 11 to discharge the water in the hose 7 through the three-way pipe 12. Subsequently, the end of the three-way pipe 12 corresponding to the measuring cup 15 is opened through the solenoid valve 13, and the other end is closed. At this time, the pumped water will be discharged into the measuring cup 15 for sampling.

[0029] As an optional embodiment, a telescopic rod 2 is provided on the floating board 1, one end of the telescopic rod 2 is hinged to the floating board 1, and the other end is provided with a handle 3. The telescopic rod 2 is provided so that the staff can control the position of the floating board 1 when standing on the shore.

[0030] The counterweight block 5 is in an inverted cone shape, the hose 7 passes through the central axis of the counterweight block 5, and the lower end of the hose 7 is threadedly connected with a filter screen 18, which can filter impurities in the water.

[0031] The rotating assembly 17 includes an inner gear ring 19 rotatably disposed on the floating plate 1 . A motor 21 is disposed on the floating plate 1 , and a gear 20 is disposed on the output shaft of the motor 21 . The gear 20 meshes with the inner gear ring 19 .

[0032] The placement rack 14 includes a mounting ring 22, which is arranged on the inner gear ring 19. A plurality of fixing sleeves 23 are arranged on the mounting ring 22, and a measuring cup 15 is placed in the fixing sleeve 23. The motor 21 cooperates with the gear 20 and the inner gear ring 19 to rotate the placement rack 14. The placement rack 14 is rotated by the rotating assembly 17 so that another measuring cup 15 corresponds to the end of the three-way pipe 12, thereby realizing continuous extraction of water samples at different depths.

[0033] The lifting assembly 4 includes a dual-axis motor 9, and winding wheels 10 are provided on the two output shafts of the dual-axis motor 9. A pull rope 8 is connected to the winding wheels 10, and the other end of the pull rope 8 passes through the floating plate 1 and is fixed to the counterweight block 5. The two winding wheels 10 are rotated by the dual-axis motor 9, and the pull rope 8 is wound up by the winding wheels 10, so that the height of the counterweight block 5 can be adjusted.

[0034] The two pull ropes 8 are symmetrical to each other with the axis of the counterweight 5 as the center.

[0035] A storage battery 16 is provided on the floating plate 1 .

[0036] With the above structure, the floating plate 1 is placed on the water surface, and the counterweight 5 is lowered by the lifting assembly 4. The hose 7 is brought into the water by the counterweight 5. The depth of the lower end of the hose 7 can be known by the depth sensor 6. After reaching the specified depth, the original water in the hose 7 is first discharged by the water pump 11 to avoid mixing of water at different depths. Through the cooperation of the two solenoid valves 13, one end of the three-way pipe 12 corresponding to the measuring cup 15 is closed, and the other end is opened. Water is pumped by the water pump 11 to discharge the water in the hose 7 through the three-way pipe 12. Then, the end of the three-way pipe 12 corresponding to the measuring cup 15 is opened by the solenoid valve 13, and the other end is closed. At this time, the pumped water will be discharged into the measuring cup 15 for sampling.

[0037] Finally, the counterweight 5 is continued to be moved downward by the lifting assembly 4 to adjust the depth of the lower end of the hose 7. When sampling at different depths, the above-mentioned operation of emptying the water in the hose 7 must be repeated. Then, the placement rack 14 is rotated by the rotating assembly 17 to make the other measuring cup 15 correspond to the end of the three-way pipe 12, thereby realizing continuous extraction of water samples at different depths.

[0038] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A water sampling structure for a water quality detector, characterized in that: It comprises a floating plate (1), a counterweight block (5) is arranged below the floating plate (1), a lifting assembly (4) for adjusting the height of the counterweight block (5) is arranged on the floating plate (1), and a depth sensor (6) is arranged on the counterweight block (5); A water pump (11) is arranged on the upper side of the floating plate (1), and a hose (7) is connected to the water pumping end of the water pump (11), and the lower end of the hose (7) is fixed on the counterweight (5). A placing frame (14) and a rotating assembly (17) for rotating the placing frame (14) are rotatably arranged on the floating plate (1), and a plurality of measuring cups (15) are placed on the rotating assembly (17), and the plurality of measuring cups (15) are distributed in a ring shape with the water pump (11) as the center. The output end of the water pump (11) is connected to a three-way pipe (12), and one end of the two output ends of the three-way pipe (12) corresponds to the measuring cup (15), and the other end is offset from the upper side of the floating plate (1), and two solenoid valves (13) are arranged on the three-way pipe (12) for independently controlling the opening and closing of the two output ends of the three-way pipe (12).

2. A water sampling structure for a water quality detector according to claim 1, characterized in that: The floating plate (1) is provided with a telescopic rod (2), one end of the telescopic rod (2) is hinged to the floating plate (1), and the other end is provided with a handle (3).

3. A water sampling structure for a water quality detector according to claim 1, characterized in that: The counterweight block (5) is in the shape of an inverted cone, the hose (7) passes through the central axis of the counterweight block (5), and a filter screen (18) is threadedly connected to the lower end of the hose (7).

4. A water sampling structure for a water quality detector according to claim 1, characterized in that: The rotating assembly (17) comprises an inner gear ring (19), the inner gear ring (19) is rotatably arranged on the floating plate (1), a motor (21) is arranged on the floating plate (1), a gear (20) is arranged on the output shaft of the motor (21), and the gear (20) is meshed with the inner gear ring (19).

5. A water sampling structure for a water quality detector according to claim 4, characterized in that: The placement rack (14) comprises a mounting ring (22), the mounting ring (22) being arranged on the inner gear ring (19), a plurality of fixing sleeves (23) being arranged on the mounting ring (22), and a measuring cup (15) being placed in the fixing sleeve (23).

6. A water sampling structure for a water quality detector according to claim 1, characterized in that: The lifting assembly (4) comprises a double-axis motor (9), and both output shafts of the double-axis motor (9) are provided with a winding wheel (10), and the winding wheel (10) is connected to a pull rope (8), and the other end of the pull rope (8) passes through the floating plate (1) and is fixed to the counterweight block (5).

7. A water sampling structure for a water quality detector according to claim 6, characterized in that: The two pull ropes (8) are symmetrical to each other with the axis of the counterweight block (5) as the center.

8. A water sampling structure for a water quality detector according to claim 1, characterized in that: A storage battery (16) is arranged on the floating plate (1).

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