Automatic online water quality sampling device with variable sampling depth

Abstract

The utility model discloses an automatic online water quality sampling device with variable sampling depth, which belongs to the technical field of water quality sampling and comprises a buoy component, a pipeline driving component, an automatic winding machine, a water pump and a temporary storage cabin. The fixing plate is fixedly installed in the buoy body, the limiting nut is fixedly installed at the lower end of the fixing plate, the external thread sleeve penetrates through the fixing plate to be installed in the limiting nut, the fixing nut is installed on the external thread sleeve and located above the fixing plate at the same time, and the pipeline driving assembly is fixedly installed at the upper end of the buoy assembly. A hose is wound on the automatic winding machine, and the length of the hose can be adjusted by arranging the pipeline driving assembly and the automatic winding machine, so that the depth of a hollow plumb bob water taking head at the tail end of the hose is adjusted, the purpose of adjusting the water sampling depth is achieved, and finally automatic sampling of different depths of a field water body can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality sampling, in particular to an automatic online water quality sampling device with variable sampling depth. Background Art

[0002] Water quality sampling is one of the important links in water quality monitoring, which directly affects the accuracy of water quality analysis results. The purpose of water quality sampling is to collect representative water samples to reflect the chemical composition and characteristics of water bodies, and then analyze the water pollution status or water quality status. Most traditional water quality sampling methods adopt manual sampling methods, which are not only inefficient but also difficult to meet the requirements of modern water quality monitoring for informatization and automation. At present, there are already some automatic water samplers on the market, which can automatically collect water samples at preset time intervals. However, these devices usually can only sample at a fixed depth, cannot automatically sample at different depths in layers, nor can they adapt to the water level changes at different times of the water body, and it is difficult to meet the needs of long-term field automatic operations. Therefore, an automatic online water quality sampling device with variable sampling depth is needed. Content of the Utility Model

[0003] The main purpose of the utility model is to provide an automatic online water quality sampling device with variable sampling depth, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] An automatic online water quality sampling device with variable sampling depth, including a buoy assembly, a pipeline driving assembly, an automatic rewinder, a water pump, and a temporary storage tank. The buoy assembly is composed of a buoy main body, a fixing plate, a limit nut, an external thread sleeve, and a fixing nut. The fixing plate is fixedly installed inside the buoy main body. The limit nut is fixedly installed at the lower end of the fixing plate. The external thread sleeve passes through the fixing plate and is installed inside the limit nut. The fixing nut is installed on the external thread sleeve, and the fixing nut is simultaneously located above the fixing plate. The pipeline driving assembly is fixedly installed at the upper end of the buoy assembly. A hose is wound on the automatic rewinder. The tail end of the hose sequentially passes through the pipeline driving assembly and the external thread sleeve, and a hollow lead hammer water intake head is fixedly installed at the tail end of the hose. The head end of the hose is connected to the water pump, and the water pump is simultaneously connected to the temporary storage tank through a connecting pipe. A drain pipe is fixedly installed on the lower side wall of the temporary storage tank. A sampling pipe is fixedly installed on the side wall of the temporary storage tank. An overflow pipe is fixedly installed on the upper side wall of the temporary storage tank. Valves are fixedly installed on both the drain pipe and the sampling pipe. A water flow sensor is fixedly installed on the overflow pipe. A water quality sensor is also fixedly installed on the side wall of the temporary storage tank.

[0006] Preferably, the buoy body on the buoy assembly is an annular structure, the fixing plate is fixedly installed on the inner wall of the buoy body, a through hole is formed in the fixing plate, the limit nut is coaxial with the through hole, and the external thread sleeve passes through the through hole.

[0007] Preferably, the pipeline driving assembly is composed of a U-shaped frame, a runner and a stepping motor.

[0008] Preferably, the U-shaped frame on the pipeline driving assembly is fixedly installed at the upper end of the buoy body, there are two runners which are symmetrically installed up and down and rotatably installed in the U-shaped frame, the stepping motor is fixedly installed at one end of the U-shaped frame, and the output shaft of the stepping motor is fixedly connected to the lower runner.

[0009] Preferably, the hose passes between the two runners, and the hose is fixedly connected to the water inlet of the water pump.

[0010] Preferably, the connecting pipe is fixedly connected to the water outlet of the water pump, and the connecting pipe is also fixedly connected to the temporary storage tank.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By setting the pipeline driving assembly and the automatic rewinder, the length of the hose can be adjusted, so as to adjust the depth of the hollow lead weight water intake head at the end of the hose, and further achieve the purpose of adjusting the water intake depth, and finally realize the automatic sampling of different depths of field water bodies; by setting the buoy assembly, and installing the hose and the pipeline driving assembly on the buoy assembly at the same time, the buoy assembly can float up and down with the change of water level, and finally the change of water level will not affect the sampling depth relative to the water surface; by setting the limit nut, the external thread sleeve and the fixing nut, the starting value of the water intake depth can be calibrated by adjusting the height of the lower edge of the external thread sleeve; by setting the temporary storage tank and the water quality sensor on the temporary storage tank, some parameters of the water sample can be detected on site, so as to improve the timeliness and accuracy of water sample detection; by setting the drain pipe, the sampling pipe, the overflow pipe, and being controlled by relevant valves and water flow sensors, working states such as flushing, measuring, sampling, and emptying can be realized. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the utility model;

[0014] Figure 2 is the structural schematic diagram of the positional relationship between the temporary storage tank of the utility model and the components installed thereon;

[0015] Figure 3 is the exploded view of the buoy assembly of the utility model;

[0016] Figure 4Schematic structural diagram of the positional relationship between the pipeline driving assembly and the hose of the present utility model.

[0017] In the figure: 1. Buoy assembly; 2. Pipeline driving assembly; 3. Automatic rewinder; 4. Water pump; 5. Hose; 6. Temporary storage tank; 7. Connecting pipe; 8. Water quality sensor; 9. Drain pipe; 10. Sampling pipe; 11. Valve; 12. Overflow pipe; 13. Water flow sensor; 14. Buoy body; 15. Fixed plate; 16. Through hole; 17. Limit nut; 18. External thread sleeve; 19. Fixed nut; 20. U-shaped frame; 21. Runner; 22. Stepper motor; 23. Hollow lead hammer water intake head. Specific embodiments

[0018] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown in the figure, an automatic on-line water quality sampling device with variable sampling depth includes a buoy component 1, a pipeline driving component 2, an automatic reel 3, a water pump 4, and a temporary storage tank 6. The buoy component 1 consists of a buoy main body 14, a fixing plate 15, a limit nut 17, an external thread sleeve 18, and a fixing nut 19. The fixing plate 15 is fixedly installed inside the buoy main body 14. The limit nut 17 is fixedly installed at the lower end of the fixing plate 15. The external thread sleeve 18 passes through the fixing plate 15 and is installed inside the limit nut 17. The fixing nut 19 is installed on the external thread sleeve 18 and is located above the fixing plate 15 at the same time. The pipeline driving component 2 is fixedly installed at the upper end of the buoy component 1. A hose 5 is wound on the automatic reel 3. The tail end of the hose 5 passes through the pipeline driving component 2 and the external thread sleeve 18 in sequence, and a hollow lead hammer water intake head 23 is fixedly installed at the tail end of the hose 5. The head end of the hose 5 is connected to the water pump 4. The water pump 4 is also connected to the temporary storage tank 6 through a connecting pipe 7. A drain pipe 9 is fixedly installed on the lower side wall of the temporary storage tank 6. A sampling pipe 10 is fixedly installed on the side wall of the temporary storage tank 6. An overflow pipe 12 is fixedly installed on the upper side wall of the temporary storage tank 6. Valves 11 are fixedly installed on both the drain pipe 9 and the sampling pipe 10. A water flow sensor 13 is fixedly installed on the overflow pipe 12. A water quality sensor 8 is also fixedly installed on the side wall of the temporary storage tank 6. The pipeline driving component 2 consists of a U-shaped frame 20, a runner 21, and a stepping motor 22. The water pump 4, the water quality sensor 8, the valves 11, the water flow sensor 13, the stepping motor 22, and the automatic sampler are all connected to a controller, which is uniformly controlled by the controller. The controller is connected to a management platform. Tasks are issued through the management platform and the operation status of the equipment is monitored. During installation and use, the sampling pipe 10 can be connected to the automatic sampler, and the buoy component 1 can be placed on the water surface. After the equipment is installed, adjust the height of the external thread sleeve 18 so that the bottom end of the external thread sleeve 18 is flush with the water surface line. The pipeline driving component 2 cooperates with the automatic reel 3 to tighten the hose 5. At this time, the hollow lead hammer water intake head 23 is flush with the water surface line and the water sampling depth is zero. Then, after setting the water sampling depth, the sampling task is executed. At this time, the pipeline driving component 2 extends the hose 5 downward. When the hollow lead hammer water intake head 23 reaches the specified depth, the stepping pipeline driving component 2 stops working and locks. Then, first enter the flushing state. The valves 11 on the drain pipe 9 and the sampling pipe 10 are closed. Then the water pump 4 starts to run. When the water flow sensor 13 senses that there is water flow passing through, the water pump 4 continues to run for one minute to flush the pipeline and discharge the air in the system. After the water pump 4 runs for one minute, it stops working and enters the measurement state. At this time, the valves 11 on the drain pipe 9 and the sampling pipe 10 remain closed, and the water quality sensor 8 starts to collect water quality indicators. When the water quality indicators are collected, enter the collection state. At this time, the valve 11 on the drain pipe 9 remains closed, and the valve 11 on the sampling pipe 10 is opened. The automatic sampler starts to collect water samples from the temporary storage tank 6. After sampling, enter the emptying state. At this time, the valve 11 on the sampling pipe 10 is closed,The valve 11 on the drain pipe 9 is opened to drain the water in the temporary storage tank 6. After draining for a period of time, the valve 11 on the drain pipe 9 and the valve 11 on the sampling pipe 10 are closed. Finally, the pipeline driving assembly 2 drives the recovery of the hose 5 until the hollow lead hammer water intake head 23 touches the bottom end of the external thread sleeve 18. At this time, the recovery of the hose 5 is blocked, indicating that the hose 5 has been recovered in place. Then the pipeline driving assembly 2 stops working. Finally, the recovered hose 5 is wound by the automatic winder 3. By setting the pipeline driving assembly 2 and the automatic winder 3, the length of the hose 5 can be adjusted, so as to adjust the depth of the hollow lead hammer water intake head 23 at the end of the hose 5, and further achieve the purpose of adjusting the water sampling depth. Finally, the automatic sampling of different depths of the field water body can be realized; by setting the buoy assembly 1 and installing the hose 5 and the pipeline driving assembly 2 on the buoy assembly 1 at the same time, the buoy assembly 1 can float up and down with the change of the water level, and finally the change of the water level will not affect the sampling depth relative to the water surface; by setting the limit nut 17, the external thread sleeve 18 and the fixing nut 19, the starting value of the water intake depth can be calibrated by adjusting the height of the lower edge of the external thread sleeve 18; by setting the temporary storage tank 6 and installing the water quality sensor 8 on the temporary storage tank 6, some parameters of the water sample can be detected on site, thus improving the timeliness and accuracy of the water sample detection; by setting the drain pipe 9, the sampling pipe 10 and the overflow pipe 12 and controlling them by the relevant valves 11 and the water flow sensor 13, the working states such as flushing, measuring, sampling and draining can be realized.,

[0020] Further, the buoy body 14 on the buoy assembly 1 is of an annular structure. The fixing plate 15 is fixedly installed on the inner wall of the buoy body 14. Through holes 16 are provided on the fixing plate 15. The limit nut 17 is coaxial with the through holes 16. The external thread sleeve 18 passes through the through holes 16. When adjusting the height of the external thread sleeve 18, the height of the external thread sleeve 18 can be adjusted by rotating the external thread sleeve 18 on the limit nut 17, and the external thread sleeve 18 is fixed by tightening the fixing nut 19.

[0021] Further, the U-shaped frame 20 on the pipeline driving assembly 2 is fixedly installed at the upper end of the buoy body 14. There are two runners 21 which are symmetrically installed up and down and rotatably installed in the U-shaped frame 20. The stepping motor 22 is fixedly installed at one end of the U-shaped frame 20, and the output shaft of the stepping motor 22 is fixedly connected with the lower runner 21. The two runners 21 can clamp the hose 5. When using the pipeline driving assembly 2 to take in and release the hose 5, the stepping motor 22 will drive the lower runner 21 to rotate, so that the lower runner 21 will drive the hose 5 to move.

[0022] Further, the hose 5 passes between the two runners 21, and the hose 5 is fixedly connected to the water inlet of the water pump 4. The connecting pipe 7 is fixedly connected to the water outlet of the water pump 4 and is also fixedly connected to the temporary storage tank 6. The hose 5 is required to be bendable but not crushable in terms of performance. When the hose 5 is wound around the automatic reel 3, the automatic reel 3 always maintains a winding force, that is, in the absence of external force, the automatic reel 3 will automatically wind the hose 5. The presence of the hollow lead weight water intake head 23 can keep the hose 5 in a vertical state. The diameter of the hollow lead weight water intake head 23 needs to be larger than the diameter of the external thread sleeve 18, so that when the hose 5 is retracted, the hollow lead weight water intake head 23 can be restricted at the lower end of the external thread sleeve 18.

[0023] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention. The protection scope claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic online water quality sampling device with variable sampling depth, characterized in that: It includes a buoy assembly (1), a pipeline driving assembly (2), an automatic winder (3), a water pump (4), and a temporary storage tank (6). The buoy assembly (1) consists of a buoy body (14), a fixing plate (15), a limit nut (17), an external thread sleeve (18), and a fixing nut (19). The fixing plate (15) is fixedly installed inside the buoy body (14). The limit nut (17) is fixedly installed at the lower end of the fixing plate (15). The external thread sleeve (18) passes through the fixing plate (15) and is installed inside the limit nut (17). The fixing nut (19) is installed on the external thread sleeve (18), and the fixing nut (19) is also located above the fixing plate (15). The pipeline driving assembly (2) is fixedly installed at the upper end of the buoy assembly (1). A hose (5) is wound on the automatic winder (3). The tail end of the hose (5) passes through the pipeline driving assembly (2) and the external thread sleeve (18) in sequence, and a hollow lead hammer water intake head (23) is fixedly installed at the tail end of the hose (5). The head end of the hose (5) is connected to the water pump (4). The water pump (4) is also connected to the temporary storage tank (6) through a connecting pipe (7). A drain pipe (9) is fixedly installed on the lower side wall of the temporary storage tank (6). A sampling pipe (10) is fixedly installed on the side wall of the temporary storage tank (6). An overflow pipe (12) is fixedly installed on the upper side wall of the temporary storage tank (6). Valves (11) are fixedly installed on both the drain pipe (9) and the sampling pipe (10). A water flow sensor (13) is fixedly installed on the overflow pipe (12). A water quality sensor (8) is also fixedly installed on the side wall of the temporary storage tank (6).

2. The automatic on-line water quality sampling device with variable sampling depth according to claim 1, characterized in that: The buoy body (14) on the buoy assembly (1) is of a ring structure. The fixing plate (15) is fixedly installed on the inner wall of the buoy body (14). A through hole (16) is formed in the fixing plate (15). The limit nut (17) is coaxial with the through hole (16). The external thread sleeve (18) passes through the through hole (16).

3. The automatic on-line water quality sampling device with variable sampling depth according to claim 2, characterized in that: The pipeline driving assembly (2) consists of a U-shaped frame (20), a runner (21), and a stepping motor (22).

4. The automatic online water quality sampling device with variable sampling depth according to claim 3, characterized in that: The U-shaped frame (20) on the pipeline driving assembly (2) is fixedly installed at the upper end of the buoy body (14). There are two runners (21) which are symmetrically installed and rotatable up and down inside the U-shaped frame (20). The stepping motor (22) is fixedly installed at one end of the U-shaped frame (20), and the output shaft of the stepping motor (22) is fixedly connected to the lower runner (21).

5. The automatic on-line water quality sampling device with variable sampling depth according to claim 4, characterized in that: The hose (5) passes between the two runners (21), and the hose (5) is fixedly connected to the water inlet of the water pump (4).

6. The automatic online water quality sampling device with variable sampling depth according to claim 5, characterized in that: The connecting pipe (7) is fixedly connected to the water outlet of the water pump (4), and the connecting pipe (7) is also fixedly connected to the temporary storage tank (6).

Images