Multilayer water quality sampling device

Abstract

The utility model belongs to the field of water sampling equipment, and particularly relates to a multi-layer water sampling device which comprises a measuring rod, a plurality of mounting seats are fixedly connected onto the measuring rod, at least one water sampler is fixedly connected onto each mounting seat, each water sampler comprises a sampling pipe, a water inlet is formed in the bottom of each sampling pipe, and a water outlet is formed in the bottom of each sampling pipe. A piston is connected into the sampling pipe, and a piston rod is fixedly connected to the piston; the inner portion of the measuring rod is hollow, the upper end of the inner side of the measuring rod is provided with an upper bearing, the bottom of the measuring rod is fixedly connected with a lead weight, the lead weight is provided with a lower bearing, a screw rod is arranged between the upper bearing and the lower bearing, the upper end of the screw rod is connected with a handle, the screw rod is in threaded connection with a movable nut, and the movable nut is fixedly connected with a sliding block. A strip-shaped sliding hole is formed in the side wall of the measuring rod, a lifting plate is fixedly connected to each sliding block, and each piston rod penetrates through the corresponding lifting plate and is provided with a limiting table. According to the utility model, a water sample is collected by utilizing the liquid absorption principle of the injector, and the sampling efficiency is higher.

Description

Technical Field

[0001] This utility model relates to a multi-layer water quality sampling device, belonging to the field of water sample collection equipment. Background Technology

[0002] Water is an indispensable and precious resource for human survival, life, and production. The water environment is an important component of the ecological environment, and the physicochemical properties and biological characteristics of water bodies directly determine their quality. To obtain timely information about the water environment, provide reliable basic data for water environment management, and offer a scientific basis for evaluating the effectiveness of treatment measures, water environment monitoring is necessary. In water environment monitoring, water sampling and testing are required to facilitate relevant departments in evaluating and controlling water quality, identifying and managing pollution sources, and implementing effective treatment measures.

[0003] Currently, most water sampling devices can only sample water at one depth. Sampling at different depths requires multiple operations, resulting in low sampling efficiency. To address this, Chinese utility model patent CN216012864U discloses a reservoir stratified water sampling device. While it can sample water at different depths, its principle involves pulling a plunger out of a plug hole in the water tank and collecting water through a plug hole at the top of the tank. Due to the air pressure inside the tank, the plug hole operation is inefficient, leading to low sampling efficiency. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a multi-layer water quality sampling device with high sampling efficiency.

[0005] The multi-layer water quality sampling device of this utility model includes a measuring rod, with multiple mounting seats fixedly connected to the measuring rod. At least one connector is fixedly connected to each mounting seat, and a water sample collector is fixedly connected to each connector. The water sample collector includes a sampling tube fixed to the connector, with an inlet at the bottom of the sampling tube. A piston is connected inside the sampling tube, and a piston rod is fixedly connected to the piston. The measuring rod is hollow inside, with an upper bearing installed on its inner upper end. A plumb bob is fixedly connected to the bottom of the measuring rod, and a lower bearing is installed on the plumb bob. A screw is installed between the upper and lower bearings, and a handle is connected to the upper end of the screw. A movable nut, corresponding to each mounting seat, is threaded onto the screw. A slider, corresponding to each piston rod, is fixedly connected to the movable nut. A strip-shaped sliding hole, corresponding to each slider, is provided on the side wall of the measuring rod. A lifting plate is fixedly connected to each slider, and each piston rod passes through its corresponding lifting plate and is provided with a limiting platform.

[0006] Furthermore, each of the mounting bases is connected to 2 to 4 connectors, which are evenly distributed circumferentially.

[0007] Furthermore, the handle is square-shaped.

[0008] Furthermore, a reference float is fixedly connected to the upper end of the measuring rod.

[0009] Furthermore, the connector includes two corresponding clamps, one end of which is fixedly connected to the mounting base, and the other end of which is fixedly connected to each other by bolts. The sampling tube is installed between the two clamps.

[0010] Furthermore, the sampling tube is provided with a groove that corresponds to and fits the clamp.

[0011] Working principle and process:

[0012] In use, hold the handle and vertically insert the measuring rod into the water. At this point, the piston is at the bottom of the sampling tube, preventing water from entering through the inlet. Turning the handle rotates the screw, causing the sliding nuts to move upwards through the sliding engagement of the sliders and the slotted orifices. This, in turn, moves the lifting plate and the limiting platform upwards, which in turn moves the piston rod upwards, drawing water into the sampling tube through the inlet. When the slider reaches the top of the slotted orifice, the sliding nuts stop rising, preventing the piston from detaching from the sampling tube. The water sample collection is completed immediately. By reversing the handle, the screw rotates in the opposite direction, which in turn moves the moving nut downwards. This, in turn, moves the lifting plate downwards via the slider. When the slider reaches the bottom of the strip-shaped sliding hole, the lifting plate moves to the end of the sampling tube, preventing interference between the lifting plate and the sampling tube. Under the action of the through hole on the lifting plate, the piston rod will not move downwards with the lifting plate, so the water sample collected in the sampling tube will not come out. When it is necessary to remove the water sample, the limiting platform can be pressed down, which will move the piston downwards via the corresponding piston rod to remove the corresponding water sample.

[0013] The advantages of this utility model compared with the prior art are:

[0014] The multi-layer water sampling device of this invention can simultaneously sample water at different depths by rotating the handle, making it simple and convenient to operate; at the same time, it uses the principle of syringe aspiration to collect water samples, resulting in high sampling efficiency. Attached Figure Description

[0015] Figure 1 This is a front view of an embodiment of the present utility model;

[0016] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3This is a cross-sectional view of an embodiment of the present utility model;

[0018] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0019] Figure 5 yes Figure 3 A magnified view of point C in the middle.

[0020] In the diagram: 1. Plumb bob; 2. Water sampler; 3. Connector; 4. Mounting base; 5. Lifting plate; 6. Sliding block; 7. Measuring rod; 8. Reference float; 9. Handle; 10. Inlet; 11. Sampling tube; 12. Bolt; 13. Clamp; 14. Groove; 15. Piston rod; 16. Limiting platform; 17. Screw; 18. Upper bearing; 19. Lower bearing; 20. Moving nut; 21. Strip-shaped sliding hole; 22. Piston. Detailed Implementation

[0021] The embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0022] Example 1:

[0023] like Figures 1 to 5 As shown, the multi-layer water quality sampling device of this utility model includes a measuring rod 7, with multiple mounting bases 4 fixedly connected to the measuring rod 7. At least one connector 3 is fixedly connected to each mounting base 4, and a water sample collector 2 is fixedly connected to each connector 3. The water sample collector 2 includes a sampling tube 11 fixed to the connector 3, with an inlet 10 at the bottom of the sampling tube 11. A piston 22 is connected inside the sampling tube 11, and a piston rod 15 is fixedly connected to the piston 22. The measuring rod 7 is hollow inside, and an upper bearing 18 is installed on the upper inner side of the measuring rod 7. A plumb bob 1 is fixedly connected to the bottom of the measuring rod 7. A lower bearing 19 is installed on the plumb bob 1. A screw 17 is installed between the upper bearing 18 and the lower bearing 19. A handle 9 is connected to the upper end of the screw 17. A movable nut 20 corresponding to the mounting base 4 is threaded onto the screw 17. A slider 6 corresponding to the piston rod 15 is fixedly connected to the movable nut 20. A strip-shaped sliding hole 21 corresponding to the slider 6 is provided on the side wall of the measuring rod 7. A lifting plate 5 is fixedly connected to each slider 6. Each piston rod 15 passes through its corresponding lifting plate 5 and is provided with a limiting platform 16.

[0024] In use, hold handle 9 and vertically insert measuring rod 7 into the water. At this time, piston 22 is at the bottom of sampling tube 11, and water will not enter sampling tube 11 through inlet 10. By turning handle 9, screw 17 is rotated, which in turn drives moving nuts 20 upward under the sliding engagement of sliders 6 and strip-shaped sliding holes 21. This, in turn, drives limiting platform 16 upward through lifting plate 5, which in turn drives piston 22 upward through piston rod 15, thus drawing water into sampling tube 11 through inlet 10. When slider 6 moves to the top of strip-shaped sliding hole 21, moving nut 20 stops rising, so piston 22 no longer moves upward, thus preventing piston 22 from exiting sampling tube 11. Once the water sample is disengaged from the sampling tube 11, the water sample collection is complete. By reversing the handle 9, the screw 17 rotates in the opposite direction, causing the moving nut 20 to move downwards. This, in turn, causes the lifting plate 5 to move downwards via the slider 6. When the slider 6 reaches the lowest point of the strip-shaped sliding hole 21, the lifting plate 5 moves to the end of the sampling tube 11, preventing interference between the lifting plate 5 and the sampling tube 11. Under the action of the through hole on the lifting plate 5, the piston rod 15 will not move downwards with the lifting plate 5, so the water sample collected in the sampling tube 11 will not come out. When it is necessary to remove the water sample, the limiting platform 16 can be pressed down, which will cause the piston 22 to move downwards via the corresponding piston rod 15, thus removing the corresponding water sample.

[0025] Example 2:

[0026] like Figures 1 to 5 As shown, based on Example 1,

[0027] Furthermore, each of the mounting bases 4 is connected to 2 to 4 connectors 3, which are evenly distributed in a circle. Multiple water samplers 2 can be installed at the same depth, so that multiple samples can be taken from the water body at the same depth through sequential operation, which effectively increases the amount of water sample collected and avoids multiple samplings at the same depth.

[0028] Furthermore, the handle 9 is square-shaped for easy gripping;

[0029] Furthermore, a reference float 8 is fixedly connected to the upper end of the measuring rod 7. The reference float 8 floats on the water surface, which can ensure the verticality of the measuring rod 7 on the one hand, and make the operation less strenuous on the other hand.

[0030] Furthermore, the connector 3 includes two corresponding clamps 13. One end of the two clamps 13 is fixedly connected to the mounting base 4, and the other end of the two clamps 13 is fixedly connected to each other by bolts 12. The sampling tube 11 is installed between the two clamps 13. By removing the bolts 12, the sampling tube 11 can be disassembled, which facilitates the maintenance or replacement of the sampling tube 11.

[0031] Furthermore, the sampling tube 11 is provided with a groove 14 that corresponds to and matches the clamp 13. By clamping the clamp 13 into the groove 14, the connection stability between the sampling tube 11 and the clamp 13 can be increased.

Claims

1. A multi-layer water quality sampling device, characterized in that: The device includes a measuring rod (7), on which multiple mounting bases (4) are fixedly connected. Each mounting base (4) is fixedly connected to at least one connector (3), and each connector (3) is fixedly connected to a water sample collector (2). The water sample collector (2) includes a sampling tube (11) fixed to the connector (3). The bottom of the sampling tube (11) is provided with a water inlet (10). A piston (22) is connected inside the sampling tube (11), and a piston rod (15) is fixedly connected to the piston (22). The measuring rod (7) is hollow inside. An upper bearing (18) is installed on the upper inner side of the measuring rod (7), and a water sample collector (2) is fixedly connected to the bottom of the measuring rod (7). A lead weight (1) is installed on the lead weight (1), a lower bearing (19) is installed on the lead weight (1), a screw (17) is installed between the upper bearing (18) and the lower bearing (19), a handle (9) is connected to the upper end of the screw (17), a movable nut (20) corresponding to the mounting seat (4) is threaded on the screw (17), a slider (6) corresponding to the piston rod (15) is fixedly connected on the movable nut (20), a strip-shaped sliding hole (21) corresponding to the slider (6) is provided on the side wall of the measuring rod (7), a lifting plate (5) is fixedly connected on each slider (6), and each piston rod (15) passes through its corresponding lifting plate (5) and is provided with a limiting platform (16).

2. The multi-layer water quality sampling device according to claim 1, characterized in that: Each of the mounting bases (4) is connected to 2 to 4 connectors (3), and the connectors (3) are evenly distributed in a circle.

3. The multi-layer water quality sampling device according to claim 1, characterized in that: The handle (9) is square-shaped.

4. The multi-layer water quality sampling device according to claim 1, characterized in that: The upper end of the measuring rod (7) is fixedly connected to a reference float (8).

5. The multi-layer water quality sampling device according to any one of claims 1 to 4, characterized in that: The connector (3) includes two corresponding clamps (13). One end of the two clamps (13) is fixedly connected to the mounting base (4), and the other end of the two clamps (13) is fixedly connected to each other by bolts (12). The sampling tube (11) is installed between the two clamps (13).

6. The multi-layer water quality sampling device according to claim 5, characterized in that: The sampling tube (11) is provided with a groove (14) that corresponds to and fits the clamp (13).

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