A device for rapid detection of sewage sampling

Abstract

The utility model relates to water quality sampling technical field discloses a kind of for sewage rapid detection sampling device, including sampling cylinder, the sampling cylinder left side is fixedly connected with filter cylinder, the filter cylinder left side is fixedly connected with expansion cylinder, the expansion cylinder left side is fixedly connected with suction cylinder, the sampling cylinder inner wall is slidably connected with multiple evenly distributed piston blocks, the piston block inboard is fixedly connected with piston rod, the piston rod top side is slidably connected with movable piece, the movable piece inboard is fixedly connected with sampling tube, the sampling tube inboard is provided with sampling groove, the sampling tube bottom side is fixedly connected with sealing plate, the sealing plate outer side is slidably connected with fixed plate, the fixed plate outer side is fixedly connected with handle, in the utility model, pass through handle drive formation negative pressure suction sewage, after filtering, into sampling cylinder, by sampling tube sampling seal, while part of sewage is collected by sampling plate after separation filtration, realize rapid sampling.

Description

Technical Field

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

[0002] With the development of the times, sewage pollution refers to sewage generated by human activities such as production and life that enters the natural environment without proper treatment or due to improper treatment. Among them, sewage testing and sampling devices are a type of equipment used to collect sewage samples and detect relevant indicators. They are widely used in environmental protection, water quality monitoring and other fields. Currently, traditional sampling devices use simple manual sampling devices, whose principle is mainly based on pressure difference: by cooperating with air cylinder, air valve and conduit, pulling the lever changes the air pressure inside the air cylinder. When negative pressure is formed, sewage is sucked into the sampling container through the conduit. When pressed, sewage or air can be discharged to complete the sampling operation. Components such as porous suction bulbs can also help control the sampling volume. While traditional sampling devices can achieve rapid sampling, they cannot perform segmented sampling or filter-separated sampling. Therefore, a new sampling device for rapid wastewater detection is proposed to address these issues. Summary of the Invention

[0003] To overcome the above shortcomings, this utility model provides a rapid wastewater testing and sampling device, which aims to improve the problems of rapid sampling, sealing, and sampling after separation in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A rapid wastewater testing sampling device includes a sampling cylinder, a filter cylinder fixedly connected to the left side of the sampling cylinder, an expansion cylinder fixedly connected to the left side of the filter cylinder, an absorption cylinder fixedly connected to the left side of the expansion cylinder, a plurality of evenly distributed piston blocks slidably connected to the inner wall of the sampling cylinder, a piston rod fixedly connected to the inner side of the piston blocks, a movable plate slidably connected to the top side of the piston rod, a sampling tube fixedly connected to the inner side of the movable plate, a sampling groove opened on the inner side of the sampling tube, a sealing plate fixedly connected to the bottom side of the sampling tube, a fixing plate slidably connected to the outer side of the sealing plate, and a handle fixedly connected to the outer side of the fixing plate. As a further description of the above technical solution: A separation port is fixedly connected to the bottom side of the sampling tube, a separator is fixedly connected to the bottom side of the separation port, a filter plate is fixedly connected to the inner side of the separator, a sampling drawer is fixedly connected to the outer side of the separator, a sampling plate is slidably connected to the inner side of the sampling drawer, a wristband is fixedly connected to the outer side of the sampling plate, and a groove is provided on the inner side of the sampling plate. As a further description of the above technical solution: A drive rod is fixedly connected to the right side of the sealing plate, a circular cover plate is fixedly connected to the right side of the drive rod, a spring is fixedly connected to the right side of the fixed plate, and the right side of the spring is fixedly connected to the left side of the circular cover plate. As a further description of the above technical solution: The sampling tube is rotatably connected to a movable cover on its right side, and a sealing gasket is fixedly connected to the inside of the movable cover. As a further description of the above technical solution: The piston rod is slidably connected to the inner side of the sealing gasket on its outer periphery, and the piston rod is slidably connected to the inner side of the movable cover on its outer periphery. As a further description of the above technical solution: A sealing strip is fixedly connected to the outer side of the movable cover, and the inner side of the sealing strip is slidably connected to the outer side of the piston rod; As a further description of the above technical solution: A filter disc is fixedly connected to the inside of the filter cylinder, and a one-way valve is installed inside the sampling cylinder. As a further description of the above technical solution: The left side of the handle is rotatably connected to the right side of the piston rod.

[0005] This utility model has the following beneficial effects: 1. In this utility model, the separator and filter plate drive the sampling drawer and sampling plate to work. Wastewater enters the separator through the separation port. After the filter plate filters out impurities, the water sample flows into the groove of the sampling plate and can be taken out by pulling the handle ring, thus achieving the effect of conveniently obtaining a clean and sealed sample. 2. In this utility model, the separator and filter plate drive the sampling drawer and sampling plate to work. Wastewater enters the separator through the separation port. After the filter plate filters out impurities, the water sample flows into the groove of the sampling plate and can be taken out by the handle ring, thus achieving the effect of conveniently obtaining clean samples. Attached Figure Description

[0006] Figure 1 This is a three-dimensional schematic diagram of a wastewater rapid detection sampling device proposed in this utility model; Figure 2 This is a schematic diagram of the piston rod of a rapid wastewater detection sampling device proposed in this utility model; Figure 3 This is a schematic diagram of the structure of a sampling tube for a rapid wastewater detection sampling device proposed in this utility model; Figure 4 This is a schematic diagram of the structure of a movable cover for a rapid wastewater detection sampling device proposed in this utility model; Figure 5 This is a schematic diagram of the structure of a separator for a rapid wastewater detection sampling device proposed in this utility model.

[0007] Legend: 1. Sampling cylinder; 2. Filter cylinder; 3. Expansion cylinder; 4. Suction cylinder; 5. Filter plate; 6. One-way valve; 7. Piston block; 8. Piston rod; 9. Movable cover; 10. Filter plate; 11. Movable piece; 12. Sampling tube; 13. Sampling trough; 14. Handle; 15. Fixing plate; 16. Sealing plate; 17. Circular cover plate; 18. Drive rod; 19. Spring; 20. Sealing gasket; 21. Sealing strip; 22. Separator; 23. Separation port; 24. Sampling drawer; 25. Groove; 26. Wristband; 27. Sampling plate. Detailed Implementation

[0008] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0009] Reference Figures 1-4 This utility model provides an embodiment of a rapid wastewater sampling device, comprising a sampling cylinder 1, a filter cylinder 2 fixedly connected to the left side of the sampling cylinder 1, the sampling cylinder 1 serving as an overall support device, and forming a cavity to accommodate wastewater inside; an expansion cylinder 3 fixedly connected to the left side of the filter cylinder 2, with space reserved inside the filter cylinder 2 for installing filter components to perform preliminary filtration of the absorbed wastewater; a suction cylinder 4 fixedly connected to the left side of the expansion cylinder 3, the expansion cylinder 3 serving as a transition structure connecting the filter cylinder 2 and the suction cylinder 4; the end of the suction cylinder 4 is designed for easy insertion into wastewater; multiple evenly distributed piston blocks 7 are slidably connected to the inner wall of the sampling cylinder 1, allowing the piston blocks 7 to slide smoothly within the cylinder, adjusting the air pressure inside the sampling cylinder 1 by changing their positions, thereby achieving the intake and discharge of wastewater; the inner side of the piston blocks 7 is fixedly connected to the filter cylinder 2. A piston rod 8 is fixedly connected to the piston block 7. The piston rod 8 is a key component that transmits external force to drive the piston block 7 to move. A movable plate 11 is slidably connected to the top side of the piston rod 8. It can slide flexibly along the slide rail on the top side of the piston rod 8 and is used to adjust the position of the sampling tube 12 connected to its inner side. The sampling tube 12 is fixedly connected to the inner side of the movable plate 11 and can be accurately inserted into the sewage in the sampling tube 1 to facilitate the targeted collection of samples from specific layers. A sampling groove 13 is opened on the inner side of the sampling tube 12. It is a recessed structure on the inner side of the tube and can temporarily store the collected sewage samples. A sealing plate 16 is fixedly connected to the bottom side of the sampling tube 12. A fixed plate 15 is slidably connected to the outer side of the sealing plate 16. It is a fixed structure that supports the sliding of the sealing plate 16. A handle 14 is fixedly connected to the outer side of the fixed plate 15. By pushing or pulling the handle 14, the relevant components can be moved.

[0010] Reference Figures 2-5 A separation port 23 is fixedly connected to the bottom side of the sampling tube 1 to ensure that sewage can flow smoothly from the sampling tube 1 into the separator 22. The separator 22 is fixedly connected to the bottom side of the separation port 23, forming an independent separation chamber inside, providing space for the sewage to be filtered again and sampled. A filter plate 10 is fixedly connected to the inside of the separator 22. It is a plate-shaped structure with fine pores, which can perform secondary filtration on the sewage entering the separator 22. A sampling drawer 24 is fixedly connected to the outside of the separator 22. It is a drawer structure that can slide relative to the separator 22. Its internal space is used to place the sampling plate 27. The sampling plate 27 is slidably connected to the inside of the sampling drawer 24 and can slide smoothly in the sampling drawer 24. It is a carrier for carrying the sample. A wristband 26 is fixedly connected to the outside of the sampling plate 27. A groove 25 is opened on the inside of the sampling plate 27 for collecting sewage samples after being filtered by the filter plate 10.

[0011] Reference Figures 3-4 A drive rod 18 is fixedly connected to the right side of the sealing plate 16. This rod connects the sealing plate 16 to the circular cover plate 17. The circular cover plate 17 is fixedly connected to the right side of the drive rod 18, serving as a circular plate covering the right side of the drive rod 18 and supporting the spring 19. A spring 19 is fixedly connected to the right side of the fixing plate 15, with its right side fixed to the left side of the circular cover plate 17. When the sealing plate 16 slides, the spring 19 deforms. The right side of the spring 19 is fixedly connected to the left side of the circular cover plate 17. A movable cover 9 is rotatably connected to the right side of the sampling cylinder 1, rotating around the connecting shaft on the right side of the sampling cylinder 1. This cover is used to close or open the right side opening of the sampling cylinder 1. A sealing gasket 20 is fixedly connected to the inner side of the movable cover 9. To enhance the sealing effect of the movable cover 9, the piston rod 8 is slidably connected to the inner side of the sealing gasket 20, and the outer circumference of the piston rod 8 is slidably connected to the inner side of the movable cover 9. A sealing strip 21 is fixedly connected to the outer side of the movable cover 9 to further enhance the sealing between the movable cover 9 and the piston rod 8, preventing sewage from leaking from the gaps. The inner side of the sealing strip 21 is slidably connected to the outer side of the piston rod 8. A filter disc 5 is fixedly connected to the inner side of the filter cylinder 2, and its surface is distributed with filter holes, which can perform preliminary filtration of sewage drawn into the filter cylinder 2. A one-way valve 6 is installed inside the sampling cylinder 1, which is a valve structure that only allows sewage to flow in one direction, ensuring that sewage can only flow from the filter cylinder 2 into the sampling cylinder 1. The left side of the handle 14 is rotatably connected to the right side of the piston rod 8.

[0012] Working principle: First, the operator holds the handle 14 on the outside of the fixed plate 15 and pushes it towards the sampling cylinder 1. Since the left side of the handle 14 is rotatably connected to the right side of the piston rod 8, the pushing force will drive the piston rod 8 to move synchronously, thereby causing the piston block 7 fixed inside to slide on the inner wall of the sampling cylinder 1. The movement of the piston block 7 expands the internal space of the sampling cylinder 1, forming a negative pressure. Wastewater is then sucked in from the leftmost suction cylinder 4 of the device. The wastewater first enters the expansion cylinder 3 and then flows into the filter cylinder 2. At this time, the filter disc 5 inside the filter cylinder 2 will filter the wastewater. After initial filtration to intercept large particles, the filtered wastewater continues to flow through the one-way valve 6 installed inside the sampling tube 1. The one-way valve 6 effectively prevents wastewater backflow and ensures a stable sampling process. Once sufficient wastewater has been collected in the sampling tube 1, the handle 14 is stopped. Then, the circular cover 17 is pushed inward, and under the action of the spring 19, the sampling tube 12, which is fixed inside the movable piece 11 that is slidably connected to the top side of the piston rod 8, is inserted into the sampling tube 12, so that the sampling groove 13 inside the sampling tube 12 collects the wastewater sample.

[0013] After the sample collection is completed, pull the drive rod 18 fixed on the right side of the sealing plate 16. The drive rod 18 drives the sealing plate 16 to slide outside the fixed plate 15, thereby sealing the sampling tube 12 and preventing sample leakage. At this time, the spring 19 fixed on the right side of the fixed plate 15 can stretch the left side of the circular cover plate 17 fixed on the right side of the drive rod 18, and use elastic potential energy to ensure a tight seal between the sealing plate 16 and the fixed plate 15.

[0014] Next, take out the sealed sampling tube 12, and introduce the remaining sewage in the sampling tube 1 into the separator 22 through the separation port 23 fixed on the bottom side. The filter plate 10 inside the separator 22 filters the sewage again to remove finer impurities. The filtered sewage is left in the separator 22. At this time, pull the hand ring 26 to open the sampling drawer 24 on the outside of the separator 22, put the sampling plate 27 into the drawer, and use the groove 25 on the inside of the sampling plate 27 to collect the separated sample, preparing for subsequent testing.

[0015] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for rapid detection sampling of sewage, comprising a sampling cylinder (1), characterized in that: A filter cylinder (2) is fixedly connected to the left side of the sampling cylinder (1), an expansion cylinder (3) is fixedly connected to the left side of the filter cylinder (2), and an absorption cylinder (4) is fixedly connected to the left side of the expansion cylinder (3). Multiple evenly distributed piston blocks (7) are slidably connected to the inner wall of the sampling cylinder (1). A piston rod (8) is fixedly connected to the inner side of the piston block (7). A movable plate (11) is slidably connected to the top side of the piston rod (8). A sampling tube (12) is fixedly connected to the inner side of the movable plate (11). A sampling groove (13) is opened on the inner side of the sampling tube (12). A sealing plate (16) is fixedly connected to the bottom side of the sampling tube (12). A fixing plate (15) is slidably connected to the outer side of the sealing plate (16). A handle (14) is fixedly connected to the outer side of the fixing plate (15).

2. The device for rapid detection of sewage according to claim 1, characterized in that: A separation port (23) is fixedly connected to the bottom side of the sampling tube (1). A separator (22) is fixedly connected to the bottom side of the separation port (23). A filter plate (10) is fixedly connected to the inner side of the separator (22). A sampling drawer (24) is fixedly connected to the outer side of the separator (22). A sampling plate (27) is slidably connected to the inner side of the sampling drawer (24). A wristband (26) is fixedly connected to the outer side of the sampling plate (27). A groove (25) is provided on the inner side of the sampling plate (27).

3. The wastewater rapid detection sampling device according to claim 1, characterized in that: A drive rod (18) is fixedly connected to the right side of the sealing plate (16), a circular cover plate (17) is fixedly connected to the right side of the drive rod (18), a spring (19) is fixedly connected to the right side of the fixing plate (15), and the right side of the spring (19) is fixedly connected to the left side of the circular cover plate (17).

4. The wastewater rapid detection sampling device according to claim 1, characterized in that: The sampling tube (1) is rotatably connected to a movable cover (9) on the right side, and a sealing gasket (20) is fixedly connected to the inside of the movable cover (9).

5. A wastewater rapid detection sampling device according to claim 1, characterized in that: The piston rod (8) is slidably connected to the inner side of the sealing gasket (20) on its outer periphery, and the piston rod (8) is slidably connected to the inner side of the movable cover (9) on its outer periphery.

6. A wastewater rapid detection sampling device according to claim 4, characterized in that: A sealing strip (21) is fixedly connected to the outside of the movable cover (9), and the inner side of the sealing strip (21) is slidably connected to the outside of the piston rod (8).

7. A wastewater rapid detection sampling device according to claim 1, characterized in that: A filter disc (5) is fixedly connected to the inside of the filter cylinder (2), and a one-way valve (6) is installed inside the sampling cylinder (1).

8. A wastewater rapid detection sampling device according to claim 1, characterized in that: The handle (14) is rotatably connected to the right side of the piston rod (8) on the left.

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