Water quality sampling anti-biofouling device

Abstract

The utility model provides a kind of water quality sampling biological attachment-preventing device, it is related to water quality sampling technical field, including sampling head, the sampling head top edge is equipped with several sampling chambers and every sampling chamber side surface is equipped with the connecting pipe located in sampling head outside edge, the sampling head side surface has side edge cover, the side edge cover cover is divided into two spaces, upper space is sampling cavity, the sampling cavity side wall is equipped with several filter holes and sampling cavity is communicated with several connecting pipes, water in bottom cavity is entered into water storage cavity by water return pipe by piston block ascending, hollow part on the top of water storage cavity is opened by using plugging ring descending, piston block ascending can be used to push water in bottom cavity into water storage cavity, then enter sampling cavity by hollow part, and filter hole is washed by inside to outside reverse, can directly remove the attachment outside filter hole, avoid through-hole blockage to affect water sample flow.

Description

Technical Field

[0001] This utility model relates to the field of water quality sampling technology, and in particular to a water quality sampling device for preventing biofouling. Background Technology

[0002] Water quality sampling is the source of data acquisition in ecological and environmental research. Its scientific rigor and standardization directly affect the judgment of water pollution status and ecological health level, and are the prerequisite for pollution source tracing, treatment plan formulation, and environmental supervision. Therefore, the existing water quality sampler, with publication number CN220322829U, requires the staff to lift the sampler as a whole by the handle, and then insert the installation box into the water. When the collection box 2 at the bottom of the installation box moves down to the corresponding sampling water depth, the staff pushes the corresponding push rod forward under the guidance of the guide sleeve. This pushes the sealing rod backward through the movable rod at the bottom of the push rod, thereby releasing the seal of the sealing rod on the rectangular through hole on one side of the collection box, allowing water at the corresponding depth to enter the corresponding collection box through the rectangular through hole. Then, the staff pulls the push rod back to reset, so that the sealing rod seals the rectangular through hole on one side of the collection box again. The staff can then lift the sampler as a whole using the traction block.

[0003] However, during the sampling process, organisms in the water may be inhaled simultaneously. The attachment of organisms can clog the sampler's holes, filter plates, and other components, affecting the flow of water samples. It may also hinder the operation of movable parts such as the sealing rod and the movable rod, causing the sampling action to fail to be completed normally. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a water quality sampling device to prevent biofouling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a water quality sampling anti-biofouling device, comprising a sampling head, wherein a plurality of sampling chambers are provided at the top edge of the sampling head and a connecting pipe is installed on the side of each sampling chamber located on the outer side of the sampling head; the sampling head has a side cover, the side cover being divided into upper and lower spaces; the upper space is a sampling chamber, the side wall of which is provided with a plurality of filter holes and the sampling chamber is connected to a plurality of connecting pipes; the lower space is a water storage chamber, the top of which is hollowed out; the hollowed-out part of the top of the water storage chamber is connected to the sampling chamber, and a sealing ring for covering the hollowed-out part is slidably installed on the wall of the water storage chamber; a bottom cavity is coaxially distributed near the center of the sampling head, and a return water pipe is fixedly installed through each sampling chamber; the two ends of the return water pipe are respectively located on the wall of the bottom cavity and the bottom of the water storage chamber; a water valve connected to the bottom cavity is also provided on the wall of each sampling chamber, and a piston block is slidably installed on the bottom of the bottom cavity.

[0006] Preferably, a plurality of upwardly extending and retracting second electric telescopic rods are provided between the bottom surface of the sealing ring and the bottom of the water storage cavity.

[0007] Preferably, a first electric telescopic rod is fixedly installed on the top of the bottom cavity, and its telescopic end is connected to the center of the top surface of the piston block. The bottom of the bottom cavity has a channel that connects to the outside of the sampling head.

[0008] Preferably, a control chamber is provided at the center of the top of the sampling head, which is coaxially distributed with the bottom cavity. A motor is fixedly installed at the center of the bottom of the control chamber, and an electric push rod is fixedly installed on the motor spindle. The electric push rod is horizontally set and its telescopic end points towards the sampling chamber.

[0009] Preferably, a sealing rod is inserted through the sampling chamber on the side near the control chamber. The sealing rod is at the same height as the connecting pipe and is coaxially distributed. One end of the sealing rod is flat and used to seal the opening of the connecting pipe. The other end of the sealing rod passes through the sampling chamber and extends into the control chamber.

[0010] Preferably, a spring is fitted on the surface of the sealing rod, with one end of the spring near the connecting pipe fixedly installed on the sealing rod and the other end away from the connecting pipe fixedly installed on the side wall of the sampling chamber. The sealing rod is set at the same height as the electric push rod, and the telescopic end of the electric push rod is used to push the sealing rod to move.

[0011] Preferably, the top of the sampling head is equipped with a traction cover for sealing the sampling chamber and the control chamber.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the water in the bottom cavity enters the water storage cavity through the return water pipe by the rise of the piston block. The water storage cavity is opened by the descent of the sealing ring. The water in the bottom cavity is then pushed into the water storage cavity by the rise of the piston block. The water then enters the sampling cavity through the descent and the filter holes are flushed from the inside out. This directly removes the deposits trapped on the outside of the filter holes and avoids blockage of the through holes, which would affect the flow of water samples.

[0014] 2. In this utility model, by setting an air valve and a sealing ring, during the sampling process, by opening the air valve and lowering the sealing ring, a portion of the water sample can enter the bottom cavity and the water storage cavity to facilitate subsequent backwashing of the filter holes. Attached Figure Description

[0015] Figure 1 This invention provides a three-dimensional structural schematic diagram of a water quality sampling device for preventing biofouling.

[0016] Figure 2 This invention proposes a water quality sampling device to prevent biofouling. Figure 1A schematic diagram of the top-section structure;

[0017] Figure 3 This invention proposes a water quality sampling device to prevent biofouling. Figure 1 A schematic diagram of the front section structure;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0019] Legend: 1. Sampling head; 2. Side cover; 3. Filter hole; 4. Traction cover; 5. Return water pipe; 6. Sampling chamber; 7. Water storage chamber; 8. Sampling cavity; 9. Sealing rod; 10. Connecting pipe; 11. Bottom cavity; 12. First electric telescopic rod; 13. Piston block; 14. Channel; 15. Motor; 16. Electric push rod; 17. Second electric telescopic rod; 18. Sealing ring; 19. Control chamber; 20. Water valve; 21. Spring. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] like Figures 1-4As shown, a water quality sampling and anti-biofouling device includes a sampling head 1, which is suspended and lowered to a corresponding depth in the water body by a winch or other means. Several sampling chambers 6 are formed at the top edge of the sampling head 1, and each sampling chamber 6 has a connecting pipe 10 installed on its side outside the sampling head 1. A side cover 2 is located on the side of the sampling head 1, and the side cover 2 is divided into upper and lower spaces. The upper space is a sampling chamber 8, and several filter holes 3 are formed on the side wall of the sampling chamber 8. The sampling chamber 8 is connected to several connecting pipes 10. The water body is filtered and retained by the filter holes 3, and the water sample enters the sampling chamber 8, and then... The sample enters the corresponding sampling chamber 6 through the open connecting pipe 10. The lower space is a water storage chamber 7 with an open top. The open top of the water storage chamber 7 is connected to the sampling chamber 8, and a sealing ring 18 is slidably installed on the wall of the water storage chamber 7 to cover the open top. Several upward-extending second electric telescopic rods 17 are provided between the bottom surface of the sealing ring 18 and the bottom of the water storage chamber 7. In actual use, the second electric telescopic rods 17 are contracted to lower the sealing ring 18 and open the open top of the water storage chamber 7, or the sealing ring 18 is raised to close the open top. After the water sample is collected in the sampling chamber 6 or outside the filter hole 3, the sample is collected. When blocked, the connecting pipe 10 is closed, and then the sealing ring 18 descends. Water in the water storage chamber 7 enters the sampling chamber 8 through the open perforation under the thrust, and sprays out from the inside to the outside to achieve reverse flushing of the filter hole 3, preventing the filter hole 3 from being blocked by the attached material. The sampling head 1 has a coaxially distributed bottom cavity 11 near the middle. Each sampling chamber 8 is fixedly installed with a return water pipe 5. The two ends of the return water pipe 5 are located on the cavity wall of the bottom cavity 11 and the bottom of the water storage chamber 7, respectively. Each sampling chamber 8 is also equipped with a water valve 20 that communicates with the bottom cavity 11, and a piston block 13 is slidably installed at the bottom of the bottom cavity 11. The water valve 20 can... When collecting water samples in sampling chamber 6, water is replenished to bottom cavity 11 by opening water valve 20. A first electric telescopic rod 12 is fixedly installed on the top of bottom cavity 11, with its telescopic end connected to the center of the top surface of piston block 13. A channel 14 is opened at the bottom of bottom cavity 11 to connect to the outside of sampling head 1. When backwashing filter hole 3, the first electric telescopic rod 12 retracts to raise piston block 13, which can quickly push the water in bottom cavity 11 into water storage cavity 7 through return water pipe 5, and then enter sampling cavity 8 through the open cutout. The channel 14 can draw in water from the sampling area when piston block 13 rises, ensuring consistent pressure at the top and bottom.

[0023] A control chamber 19, coaxially distributed with the bottom cavity 11, is located at the center of the top of the sampling head 1. A traction cover 4 for sealing the sampling chamber 6 and the control chamber 19 is installed at the top of the sampling head 1. The traction cover 4 is connected to a winch to seal the sampling chamber 6 and the control chamber 19. A motor 15 is fixedly installed at the center of the bottom of the control chamber 19. The motor 15 spindles upward and is fixedly installed with an electric push rod 16. The electric push rod 16 is horizontally positioned and its extension end points towards the sampling chamber 6. A sealing rod 9 is inserted through the sampling chamber 6 on the side near the control chamber 19. The sealing rod 9 is at the same height as the connecting pipe 10 and is coaxially distributed. One end of the sealing rod 9 is flat and used to seal the opening of the connecting pipe 10. The other end of the sealing rod 9 passes through the sampling chamber 6 and extends into the control chamber 19. A spring 21 is sleeved on the surface of the sealing rod 9. The end of the spring 21 near the connecting pipe 10 is fixedly installed on the sealing rod 9 and far from the connecting pipe 10. One end of the connecting pipe 10 is fixedly installed on the side wall of the sampling chamber 6. The sealing rod 9 and the electric push rod 16 are set at the same height, and the telescopic end of the electric push rod 16 is used to push the sealing rod 9 to move. In actual use, the tension of the spring 21 ensures that the sealing rod 9 seals the opening of the connecting pipe 10. When it is necessary to flush water samples into the sampling chamber 6, the motor 15 in the control chamber 19 drives the electric push rod 16 to rotate horizontally so that the telescopic end of the electric push rod 16 is aligned with one of the sealing rods 9. Then, the extension of the electric push rod 16 pushes the sealing rod 9 to move against the tension of the spring 21 on its surface, so that the opening of the connecting pipe 10 can be opened. Conversely, the retraction of the electric push rod 16 can make the sealing rod 9 re-seal the opening of the connecting pipe 10 under the tension of the spring 21. The sealing of the opening of the connecting pipe 10 is ensured by setting a sealing gasket on the sealing rod 9.

[0024] The method of using this utility model is as follows:

[0025] The sampling head 1 is suspended and lowered to the designated depth in the water using a winch. The motor 15 drives the electric push rod 16 to rotate and align with the target sealing rod 9. The electric push rod 16 extends and pushes the sealing rod 9 to overcome the tension of the spring 21, opening the port of the connecting pipe 10. After the water body passes through the filter holes 3 on the side wall of the sampling chamber 8 to trap the attached substances, it enters the corresponding sampling chamber 6 for collection through the connecting pipe 10.

[0026] When sampling is completed or filter hole 3 is blocked, electric push rod 16 retracts, spring 21 pulls sealing rod 9 to close connecting pipe 10, second electric telescopic rod 17 retracts to lower sealing ring 18 and open the hollowed-out part at the top of water storage chamber 7; at the same time, first electric telescopic rod 12 retracts to push piston block 13 to rise, bottom chamber 11 draws in water through channel 14 to balance pressure, water in bottom chamber 11 is quickly pushed into water storage chamber 7 through return water pipe 5, water in water storage chamber 7 enters sampling chamber 8 through hollowed-out part, and backwashes filter hole 3 from the inside to the outside to remove attached substances.

[0027] The wiring diagrams of the first electric telescopic rod 12, electric push rod 16, motor 15, second electric telescopic rod 17, and water valve 20 in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the first electric telescopic rod 12, electric push rod 16, motor 15, second electric telescopic rod 17, and water valve 20 will not be explained in detail.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A water quality sampling device for preventing biofouling, comprising a sampling head (1), characterized in that: The sampling head (1) has several sampling chambers (6) at its top edge, and each sampling chamber (6) has a connecting pipe (10) installed on its side outside the sampling head (1). The sampling head (1) has a side cover (2) on its side. The side cover (2) is divided into two spaces: the upper space is a sampling cavity (8), and the side wall of the sampling cavity (8) has several filter holes (3) and the sampling cavity (8) is connected to several connecting pipes (10). The lower space is a water storage cavity (7), and the top of the water storage cavity (7) is hollowed out. The hollow part is connected to the sampling cavity (8), and the wall of the water storage cavity (7) is slidably installed with a sealing ring (18) for covering the hollow part. The sampling head (1) has a bottom cavity (11) with coaxial distribution near the middle position. Each sampling cavity (8) is fixedly installed with a return water pipe (5). The two ends of the return water pipe (5) are located on the wall of the bottom cavity (11) and the bottom of the water storage cavity (7) respectively. Each sampling cavity (8) is also provided with a water valve (20) connected to the bottom cavity (11), and a piston block (13) is slidably installed at the bottom of the bottom cavity (11).

2. The water quality sampling anti-biofouling device according to claim 1, characterized in that: Several upward-extending second electric telescopic rods (17) are provided between the bottom surface of the sealing ring (18) and the bottom of the water storage cavity (7).

3. The water quality sampling anti-biofouling device according to claim 1, characterized in that: The bottom cavity (11) is fixedly installed with a first electric telescopic rod (12) that is coaxially distributed and whose telescopic end is connected to the center of the top surface of the piston block (13). The bottom of the bottom cavity (11) is provided with a channel (14) that connects to the outside of the sampling head (1).

4. The water quality sampling anti-biofouling device according to claim 1, characterized in that: The sampling head (1) has a control chamber (19) at the top center that is coaxially distributed with the bottom cavity (11). A motor (15) is fixedly installed at the bottom center of the control chamber (19), and an electric push rod (16) is fixedly installed on the motor (15) with its main axis pointing upward. The electric push rod (16) is horizontally set and its extension end points towards the sampling chamber (6).

5. The water quality sampling anti-biofouling device according to claim 4, characterized in that: A sealing rod (9) is inserted through the sampling chamber (6) on the side near the control chamber (19). The sealing rod (9) is at the same height as the connecting pipe (10) and is coaxially distributed. One end of the sealing rod (9) is flat and is used to seal the opening of the connecting pipe (10). The other end of the sealing rod (9) passes through the sampling chamber (6) and extends into the control chamber (19).

6. The water quality sampling anti-biofouling device according to claim 5, characterized in that: A spring (21) is fitted on the surface of the sealing rod (9). The end of the spring (21) near the connecting pipe (10) is fixedly installed on the sealing rod (9), and the end away from the connecting pipe (10) is fixedly installed on the side wall of the sampling chamber (6). The sealing rod (9) is set at the same height as the electric push rod (16), and the telescopic end of the electric push rod (16) is used to push the sealing rod (9) to move.

7. The water quality sampling anti-biofouling device according to claim 1, characterized in that: The top of the sampling head (1) is equipped with a traction cover (4) for sealing the sampling chamber (6) and the control chamber (19).

Images