Sampling device for sewage draining exit water quality detection

By designing an easily detachable water quality testing and sampling device for sewage outlets, the safety risks of staff going into the river to collect samples were solved, enabling convenient and accurate water quality testing.

CN224004745UActive Publication Date: 2026-03-17ANHUI AOYU MUNICIPAL ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The sewage outlet is located below the river embankment, requiring staff to go into the river to collect samples, which poses a safety risk and makes the equipment inconvenient to carry and clean.

Method used

A sampling device comprising a sampler tube, a corrugated tube, and a connecting tube was designed. The sampling head is inserted into the sewage outlet through the corrugated tube to avoid sampling in the river, and it is detachable for easy carrying and cleaning.

Benefits of technology

It enables safe and convenient water sampling, reduces equipment weight, makes it easy to carry and clean, and ensures the accuracy of water sampling and the lifespan of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sampling device for sewage draining exit water quality detection, which relates to the technical field of water quality detection and comprises a sampler cylinder, a corrugated pipe and a connecting pipe, one side of the sampler cylinder is fixedly connected with a water inlet pipe, the other side of the sampler cylinder is fixedly connected with a water outlet pipe, and the inner side of the sampler cylinder is slidably connected with a piston. The upper end of the piston is fixedly connected with a connecting rod, the upper end of the connecting rod is fixedly connected with an operating handle, the side walls of the water inlet pipe and the water outlet pipe are fixedly connected with fixing blocks, and the upper and lower walls of the water inlet pipe and the water outlet pipe close to the fixing blocks are fixedly connected with convex blocks. The operating handle is pulled upwards by hand, the operating handle drives the connecting rod to move upwards, the connecting rod drives the piston to move upwards, suction force generated when the piston moves upwards enables the sealing block to move towards one side of the sampler barrel to be opened, the sealing block stretches the spring, and meanwhile the sliding rod of the sealing block slides on the inner side of the protruding block.
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Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, specifically a sampling device for testing the water quality of sewage outlets. Background Technology

[0002] Water is the source of life, and humans cannot live or produce without it. The quality of drinking water is closely related to human health. With socio-economic development, scientific progress, and improved living standards, people's requirements for drinking water quality are constantly increasing, and drinking water quality standards are correspondingly evolving and improving. Water quality testing equipment plays a vital role in environmental protection, water quality monitoring, and water resource protection. Untested wastewater discharged into rivers poses a significant threat to human health. Therefore, water quality monitoring equipment at river discharge points is needed to strengthen the monitoring of wastewater discharge and thus protect the water environment.

[0003] The above-mentioned utility model has the following problems:

[0004] 1. Sewage outlets are generally located below the river embankment. Each time a sample is taken, staff need to walk to the sewage outlet below the river embankment to complete the sampling. Some river embankments are quite steep, which poses certain risks to staff when taking samples.

[0005] Therefore, those skilled in the art have provided a sampling device for testing the water quality of sewage outlets to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to provide a sampling device for testing the water quality of sewage outlets, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A sampling device for testing the water quality of a sewage outlet includes a sampler tube, a corrugated pipe, and a connecting pipe. An inlet pipe is fixedly connected to one side of the sampler tube, and an outlet pipe is fixedly connected to the other side of the sampler tube. A piston is slidably connected to the inner side of the sampler tube, and a connecting rod is fixedly connected to the upper end of the piston. An operating handle is fixedly connected to the upper end of the connecting rod.

[0009] As a further embodiment of this utility model: the side walls of the inlet pipe and the outlet pipe are fixedly connected to fixing blocks, the upper and lower walls of the inlet pipe and the outlet pipe are fixedly connected to protrusions near the fixing blocks, one end of the fixing blocks is fixedly connected to a spring, the spring is in a compressed state by default, and the other end of the spring is fixedly connected to a sealing block.

[0010] As a further improvement of this utility model: both sides of one end of the sealing block are fixedly connected to sliding rods, and the sliding rods are slidably connected to the protrusions through the block; both sides of the sampler cylinder near the lower end are fixedly connected to foot-operated fixing parts.

[0011] As a further embodiment of this utility model: one end of the corrugated pipe and the connecting pipe are both fixedly connected to a connector. The connector of the corrugated pipe is threadedly connected to the inlet pipe, and the connector of the connecting pipe is threadedly connected to the outlet pipe. The other end of the corrugated pipe is fixedly connected to a sampling head. A filter screen is fixedly connected to one side of the sampling head, and a water quality sampling and collection box is fixedly connected to the other end of the connecting pipe.

[0012] As a further embodiment of this utility model: a connecting block is fixedly connected to the sampler tube near the upper end, an adjustment groove is provided at the upper end of the connecting block, an adjustment handle is slidably connected to the inner side of the adjustment groove, and a locking block is fixedly connected to one end of the adjustment handle, and the locking block passes through one side of the sampler tube.

[0013] As a further embodiment of this utility model: the other end of the adjustment handle is fixedly connected to an adjustment spring, which is in a spring-extended state by default, and the other end of the adjustment spring is fixedly connected to the side wall of the adjustment groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model places the sampler tube on the riverbank, connects it to a corrugated pipe, and inserts the sampling head at one end of the corrugated pipe into the sewage outlet where sampling is required, thus eliminating the need for workers to go down to the sewage outlet at the lower end of the riverbank to take samples.

[0016] 2. This utility model allows for the disassembly of the sampler cylinder, corrugated pipe, and connecting pipe. The disassembled components are relatively small, making them easy to store and transport. The disassembled equipment is also lighter, allowing staff to more easily carry the components to different work sites and reducing the overall weight of the equipment.

[0017] 3. By adjusting the handle and the locking block, users can easily disassemble and clean the sampler tube after sampling, avoiding cross-contamination. Adjusting the handle moves the locking block, allowing the piston to be easily removed, thus cleaning the device, ensuring the accuracy of water quality samples each time, and extending the service life of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a sampling device for testing the water quality of a sewage outlet.

[0019] Figure 2 This is a cross-sectional schematic diagram of the sampler in a sampling device for testing the water quality of a sewage outlet.

[0020] Figure 3 A sampling device for testing water quality at sewage outlets Figure 2 A magnified schematic diagram of the structure of A in the middle.

[0021] Figure 4 A sampling device for testing water quality at sewage outlets Figure 1 A magnified schematic diagram of the structure of B in the middle.

[0022] In the diagram: 1. Sampler tube, 2. Corrugated pipe, 3. Connecting pipe, 4. Inlet pipe, 5. Outlet pipe, 6. Piston, 7. Connecting rod, 8. Operating handle, 9. Fixing block, 10. Protrusion, 11. Spring, 12. Sealing block, 13. Slide rod, 14. Foot pedal fixing piece, 16. Connecting piece, 17. Sampling head, 18. Filter screen, 19. Water quality sampling and collection box, 20. Connecting block, 21. Adjustment groove, 22. Adjustment handle, 23. Locking block, 24. Adjustment spring. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] Reference Figure 1 , 23. This embodiment provides a sampling device for sewage outlet water quality testing, including a sampler cylinder 1, a corrugated pipe 2, and a connecting pipe 3. An inlet pipe 4 is fixedly connected to one side of the sampler cylinder 1, and an outlet pipe 5 is fixedly connected to the other side. A piston 6 is slidably connected to the inner side of the sampler cylinder 1. A connecting rod 7 is fixedly connected to the upper end of the piston 6, and an operating handle 8 is fixedly connected to the upper end of the connecting rod 7. Fixing blocks 9 are fixedly connected to the side walls of both the inlet pipe 4 and the outlet pipe 5. Protrusions 10 are fixedly connected to the upper and lower walls of both the inlet pipe 4 and the outlet pipe 5 near the fixing blocks 9. A spring 11 is fixedly connected to one end of each fixing block 9, and the spring 11 is in a compressed state by default. A sealing block 12 is fixedly connected to the other end of the spring 11. Sliding rods 13 are fixedly connected to both sides of one end of the sealing block 12, and the sliding rods 13 are slidably connected through the protrusions 10. The sampler cylinder 1 is fixedly connected to the lower end of both sides... The sampler tube is equipped with a foot pedal fixing piece 14. When using the sampler tube, the foot pedal fixing pieces on both sides need to be stepped on with the feet, and the operating handle is pulled upwards by hand. The operating handle moves the connecting rod upwards, and the connecting rod moves the piston upwards. The suction force generated when the piston moves upwards causes the sealing block to move towards one side of the sampler tube and open. The sealing block stretches the spring, and at the same time, the sliding rod of the sealing block slides inside the protrusion. The opening of the sealing block allows water in the inlet pipe to enter the sampler tube, while the sealing block in the outlet pipe is suctioned towards one side of the sampler tube, so that the sealing block and the protrusion in the outlet pipe fit tightly to seal the outlet pipe. When the piston reaches the position near the top of the sampler tube, the operating handle is pushed downwards by hand, causing the piston to move downwards, causing the water in the sampler tube to move downwards. The sealing block in the inlet pipe closes, and the sealing block in the outlet pipe opens, allowing the water in the sampler tube to flow out from the outlet pipe, thereby performing sampling.

[0026] Example 2

[0027] Reference Figure 1 , 4This embodiment is based on the previous embodiment, but differs in that one end of both the corrugated pipe 2 and the connecting pipe 3 is fixedly connected to a connector 16. The connector 16 of the corrugated pipe 2 is threadedly connected to the inlet pipe 4, and the connector 16 of the connecting pipe 3 is threadedly connected to the outlet pipe 5. The other end of the corrugated pipe 2 is fixedly connected to a sampling head 17, and a filter screen 18 is fixedly connected to one side of the sampling head 17. The other end of the connecting pipe 3 is fixedly connected to a water quality sampling collection box 19. A connecting block 20 is fixedly connected to the upper side of the sampler cylinder 1. An adjustment groove 21 is provided at the upper end of the connecting block 20. An adjustment handle 22 is slidably connected to the inner side of the adjustment groove 21. A locking block 23 is fixedly connected to one end of the adjustment handle 22, and the locking block 23 passes through one side of the sampler cylinder 1. An adjustment spring 24 is fixedly connected to the other end of the adjustment handle 22. 4. The default state is spring extension. The other end of the adjusting spring 24 is fixedly connected to the side wall of the adjusting groove 21. The corrugated pipe is installed on one side of the inlet pipe through the connector, and the connecting pipe is installed on one side of the outlet pipe through the connector. The corrugated pipe is stretched as needed, and then the sampling head is placed at the sewage outlet. The inlet of the sampling head is equipped with a filter screen to prevent impurities in the sewage outlet water from flowing into the device and causing blockage. The sampled water drawn through the sampler tube flows out through the outlet pipe, flows into the connecting pipe, and finally flows into the water quality sampling collection box for collection. When sampling at one location is completed, the adjusting handle is pulled. The adjusting handle moves in the adjusting groove, compresses the adjusting spring, and at the same time, the adjusting handle drives the locking block to move, so that the piston can be removed upward, thereby cleaning the sampler tube and preventing contamination of the next sampled water quality.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sampling device for water quality detection of a sewage outlet, comprising a sampler cylinder (1), a corrugated pipe (2) and a connecting pipe (3), characterized in that, One side of the sampler cylinder (1) is fixedly connected with the water inlet pipe (4), the other side of the sampler cylinder (1) is fixedly connected with the water outlet pipe (5), the inner side of the sampler cylinder (1) is slidably connected with the piston (6), the upper end of the piston (6) is fixedly connected with the connecting rod (7), the upper end of the connecting rod (7) is fixedly connected with the operation handle (8), the side walls of the water inlet pipe (4) and the water outlet pipe (5) are fixedly connected with the fixed blocks (9), the upper and lower walls of the water inlet pipe (4) and the water outlet pipe (5) near the fixed blocks (9) are fixedly connected with the protruding blocks (10).

2. The sampling device for water quality detection of a sewage outlet according to claim 1, characterized in that, One end of the fixed block (9) is fixedly connected with the spring (11), the spring (11) is in a compressed state by default, the other end of the spring (11) is fixedly connected with the sealing block (12), one end of the sealing block (12) is fixedly connected with the slide rods (13) on both sides, and the slide rods (13) are slidably connected with the protruding blocks (10).

3. The sampling device for water quality detection of a sewage outlet according to claim 1, characterized in that, The sampler cylinder (1) is fixedly connected with the foot fixing members (14) on both sides near the lower end.

4. The sampling device for water quality detection of a sewage outlet according to claim 1, characterized in that, One end of the corrugated pipe (2) and the connecting pipe (3) is fixedly connected with the connecting piece (16), the connecting piece (16) of the corrugated pipe (2) is threadedly connected with the water inlet pipe (4), and the connecting piece (16) of the connecting pipe (3) is threadedly connected with the water outlet pipe (5).

5. The sampling device for water quality detection of a sewage outlet according to claim 1, characterized in that, The other end of the corrugated pipe (2) is fixedly connected with the sampling head (17), one side of the sampling head (17) is fixedly connected with the filter screen (18), and the other end of the connecting pipe (3) is fixedly connected with the water quality sampling and collecting box (19).

6. The sampling device for water quality detection of a sewage outlet according to claim 1, characterized in that, One side of the sampler cylinder (1) near the upper end is fixedly connected with the connecting block (20), and the upper end of the connecting block (20) is provided with the adjusting groove (21).

7. The sampling device for water quality detection of a sewage outlet according to claim 6, characterized in that, One end of the adjusting handle (22) is fixedly connected with the clamping block (23), and the clamping block (23) penetrates one side of the sampler cylinder (1).

8. The sampling device for water quality detection of a sewage outlet according to claim 6, characterized in that, The other end of the adjusting handle (22) is fixedly connected with the adjusting spring (24), and the adjusting spring (24) is in an elastic state by default. The other end of the adjusting spring (24) is fixedly connected with the side wall of the adjusting groove (21).