Automatic sampling device for wastewater discharge outlet
By designing the water pump and sealing components in the automatic sampling device, the problem of residual wastewater in the pipeline affecting the test results was solved, enabling accurate collection and pollution-free preservation of wastewater samples, and ensuring the reliability of the test results.
Patent Information
- Application Number
- CN202520302526.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing wastewater sampling devices suffer from residual wastewater in the pipes during extraction, which affects the test results, and the lack of a sealing structure increases the likelihood of sample contamination.
Design an automatic sampling device that includes a water pump, an inlet pipe, an outlet pipe, a water injection valve, and a sealing component. The water pump extracts wastewater to clean the pipes, and the sealing component protects the sample in the water storage cup to prevent residual wastewater from affecting the test results.
This effectively avoids the mixing of samples with residual wastewater from the pipeline, ensuring the accuracy of sampling results and the absence of sample contamination, thus improving the reliability of the test.
Smart Images

Figure CN223769842U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wastewater sampling technology, and in particular relates to an automatic sampling device for wastewater discharge outlets. Background Technology
[0002] Wastewater sampling is the process of extracting a certain amount of sample from sewage for testing and analysis to determine the concentration of pollutants in the wastewater. It is the first and most crucial step in wastewater and sewage discharge testing. The main purpose of wastewater sampling is to understand the types, concentrations, and distribution of pollutants in wastewater, providing a scientific basis for wastewater treatment, environmental management, and regulatory compliance. Sampling devices are usually required when sampling wastewater.
[0003] However, existing technologies have some problems: existing wastewater sampling devices are usually placed at the wastewater discharge outlet and sample the wastewater directly through pipes and pumps. However, when extracting wastewater, some wastewater remains in the pipes, causing the subsequently extracted wastewater to mix with it, which changes the content in the wastewater sample and affects the test results. Furthermore, existing sampling devices lack a sealing structure, which makes the collected wastewater potentially contaminated, further affecting the test results. Therefore, we propose an automatic sampling device for wastewater discharge outlets. Utility Model Content
[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide an automatic sampling device for wastewater discharge outlets, which pre-flushes the pipeline by extracting wastewater, thereby avoiding the impact of residual wastewater in the pipeline on the maintenance structure.
[0005] This utility model is implemented as follows: an automatic sampling device for wastewater discharge outlets includes a body with a cavity inside. A storage plate is movably connected within the cavity, and a placement slot is provided on the storage plate. A water storage cup is placed in the placement slot, and a sealing component is provided inside the water storage cup. A partition is fixedly connected to the inner wall of the cavity of the body, and a water pump is fixedly connected to the partition. One end of the water pump is connected to an inlet pipe, and the other end is connected to an outlet pipe. A water injection component is provided on the outlet pipe, and a corrugated pipe is fixedly connected to the inlet pipe. A suction head is fixedly connected to the corrugated pipe. An adjustment component is provided on one side of the body for adjusting the height of the suction head. A door is rotatably connected to the body.
[0006] Optionally, a hydraulic rod is fixedly connected to the inner wall of the machine body cavity, a lifting platform is fixedly connected to the movable end of the hydraulic rod, a first motor is fixedly connected inside the lifting platform, and the storage plate is fixedly connected to the output end of the first motor.
[0007] Optionally, the sealing assembly includes a sealing plate, a groove is provided inside the water storage cup, a spring is fixedly connected inside the groove, the sealing plate is fixedly connected to one end of the spring, and a sealing ring is fixedly connected to the sealing plate.
[0008] Optionally, the water injection assembly includes a water injection valve, which is detachably connected to the water outlet pipe. A water injection head is fixedly connected to the water injection valve, and the water injection head corresponds to the water storage cup.
[0009] Optionally, a water outlet valve is fixedly connected to the water outlet pipe, a drain pipe is fixedly connected to the water outlet valve, and a suspended ball is fixedly connected to the drain pipe.
[0010] Optionally, the adjustment assembly includes a second motor, which is fixedly connected to one side of the machine body. A take-up reel is fixedly connected to the output end of the second motor. A steel cable is wound on the take-up reel. One end of the steel cable is fixedly connected to the inner wall of the take-up reel, and the other end of the steel cable is fixedly connected to the suction head.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model is equipped with a water inlet valve and a water outlet valve at the water outlet pipe. When the water pump extracts wastewater samples, the water outlet valve is opened, and the wastewater will enter the water outlet pipe through the water inlet pipe and be discharged through the water outlet pipe, thereby cleaning the water inlet pipe and the water outlet pipe and discharging the residual wastewater. After that, the water outlet valve is closed and the water inlet valve is opened, so that the wastewater sample enters the water storage cup through the water inlet head for preservation, avoiding the mixing of the current sample with the residual wastewater in the water pipe and affecting the test results.
[0013] 2. This utility model is equipped with a sealing component. When the water storage cup rises along with the storage plate driven by the hydraulic rod, the sealing plate inside the water storage cup will be pushed by the water injection head, pulling the spring to move into the water storage cup. This allows the water injection head to inject the wastewater sample into the water storage cup. After the water is extracted, the hydraulic rod retracts, causing the water storage cup to move downward. The sealing plate is no longer under the pressure of the water injection head and will move due to the spring's rebound force, thereby sealing the mouth of the water storage cup and preventing the wastewater sample inside from being contaminated, which would affect the test results.
[0014] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure provided by this utility model;
[0016] Figure 2 This is a schematic diagram of the second motor provided by this utility model;
[0017] Figure 3 This is a cross-sectional view of the machine body provided by this utility model;
[0018] Figure 4 This is a cross-sectional view of the water storage cup provided by this utility model;
[0019] Figure 5 This utility model provides Figure 4 Enlarged diagram of point A.
[0020] In the diagram: 1. Machine body; 2. Storage plate; 3. Water storage cup; 4. Sealing assembly; 401. Sealing plate; 402. Spring; 403. Sealing ring; 5. Partition; 6. Water pump; 7. Inlet pipe; 8. Outlet pipe; 9. Water injection assembly; 901. Water injection valve; 902. Water injection head; 903. Outlet valve; 904. Drain pipe; 905. Suspension ball; 10. Suction head; 11. Adjustment assembly; 111. Second motor; 112. Rewinding reel; 113. Steel cable; 12. Machine door; 13. Hydraulic rod; 14. Lifting platform; 15. First motor; 16. Corrugated pipe. Detailed Implementation
[0021] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0022] like Figures 1 to 5 As shown in the figure, an automatic sampling device for a wastewater discharge outlet provided in this embodiment of the utility model includes a body 1, which is rectangular and made of stainless steel. The main function of the body 1 is to support the entire device and protect its internal parts.
[0023] Furthermore, a cavity is provided inside the body 1, and a storage plate 2 is movably connected inside the cavity. A hydraulic rod 13 is fixedly connected to the inner wall of the cavity of the body 1, and a lifting platform 14 is fixedly connected to the movable end of the hydraulic rod 13. A first motor 15 is fixedly connected inside the lifting platform 14, and the storage plate 2 is fixedly connected to the output end of the first motor 15. After the first motor 15 is started, it will drive the storage plate 2 to rotate, thereby driving the water storage cup 3 on it to rotate, so as to collect multiple sets of wastewater samples.
[0024] Specifically, the hydraulic rod 13 can drive the lifting platform 14 to move up and down, which in turn drives the storage plate 2 to move up and down, so that the water injection head 902 can inject the wastewater sample into the water storage cup 3 on the storage plate 2. The first motor 15 can drive the storage plate 2 to rotate, which in turn causes the water storage cup 3 on the storage plate 2 to rotate, thereby enabling the device to collect multiple sets of samples.
[0025] Furthermore, a placement slot is provided on the storage plate 2, and a water storage cup 3 is placed in the placement slot. By placing the water storage cup 3 in the placement slot, it can be effectively prevented that the water storage cup 3 will shift or tip over, thus avoiding damage to the wastewater sample.
[0026] Furthermore, a sealing component 4 is provided inside the water storage cup 3. The sealing component 4 includes a sealing plate 401. A groove is provided inside the water storage cup 3. A spring 402 is fixedly connected inside the groove. The sealing plate 401 is fixedly connected to one end of the spring 402. A sealing ring 403 is fixedly connected to the sealing plate 401.
[0027] Specifically, when the water storage cup 3 rises along with the storage plate 2 driven by the hydraulic rod 13, the sealing plate 401 inside the water storage cup 3 is pushed by the water injection head 902, which pulls the spring 402 to move into the water storage cup 3. This allows the water injection head 902 to inject the wastewater sample into the water storage cup 3. After the water is taken out, the hydraulic rod 13 retracts, causing the water storage cup 3 to move down. The sealing plate 401 is no longer under the pressure of the water injection head 902 and will move due to the rebound force of the spring 402, thereby sealing the mouth of the water storage cup 3 and preventing the wastewater sample inside from being contaminated and affecting the test results.
[0028] Furthermore, a partition 5 is fixedly connected to the inner wall of the cavity of the body 1, and a water pump 6 is fixedly connected to the partition 5. One end of the water pump 6 is connected to the water inlet pipe 7, and the other end of the water pump 6 is connected to the water outlet pipe 8. The main function of the water pump 6 is to extract wastewater from the wastewater discharge outlet and inject it into the water storage cup 3 for storage.
[0029] Furthermore, a water injection component 9 is provided on the water outlet pipe 8. The water injection component 9 includes a water injection valve 901, which is detachably connected to the water outlet pipe 8. A water injection head 902 is fixedly connected to the water injection valve 901, and the water injection head 902 corresponds to the water storage cup 3.
[0030] Furthermore, a water outlet valve 903 is fixedly connected to the water outlet pipe 8, a drain pipe 904 is fixedly connected to the water outlet valve 903, and a suspended ball 905 is fixedly connected to the drain pipe 904.
[0031] Specifically, when the water pump 6 extracts the wastewater sample, the outlet valve 903 is opened, and the wastewater enters the outlet pipe 8 through the inlet pipe 7 and is discharged through the drain pipe 904, thereby cleaning the inlet pipe 7 and the outlet pipe 8 and discharging the residual wastewater. Afterwards, the outlet valve 903 is closed and the water injection valve 901 is opened, so that the wastewater sample enters the water storage cup 3 through the water injection head 902 for preservation, avoiding the mixing of the current sample with the residual wastewater in the water pipe and affecting the test results.
[0032] Furthermore, a corrugated pipe 16 is fixedly connected to the water inlet pipe 7, and a water suction head 10 is fixedly connected to the corrugated pipe 16. An adjustment component 11 is provided on one side of the machine body 1, and the adjustment component 11 is used to adjust the height of the water suction head 10.
[0033] Furthermore, the adjustment component 11 includes a second motor 111, which is fixedly connected to one side of the machine body 1. The output end of the second motor 111 is fixedly connected to a take-up reel 112, and a steel cable 113 is wound on the take-up reel 112. One end of the steel cable 113 is fixedly connected to the inner wall of the take-up reel 112, and the other end of the steel cable 113 is fixedly connected to the suction head 10.
[0034] Specifically, the second motor 111 starts and drives the winding wheel 112 to rotate. After the winding wheel 112 rotates, it will wind up or release the steel cable 113, thereby changing the height of the suction head 10, so that the device can extract wastewater at different water levels.
[0035] Furthermore, a door 12 is rotatably connected to the machine body 1. The door 12 is rotatably connected to the machine body 1 via a hinge. The door 12 is equipped with a handle to facilitate staff to open the door 12 and take out the wastewater sample collected in the water storage cup 3.
[0036] The working principle of this utility model is as follows:
[0037] This invention features an injection valve 901 and an outlet valve 903 at the outlet pipe 8. When the water pump 6 extracts wastewater samples, the outlet valve 903 opens, allowing wastewater to enter the outlet pipe 8 through the inlet pipe 7 and be discharged through the drain pipe 904, thus cleaning the inlet pipe 7 and outlet pipe 8 and removing any residual wastewater. Afterward, the outlet valve 903 closes, and the injection valve 901 opens, allowing the wastewater sample to enter the storage cup 3 through the injection head 902 for preservation. This prevents residual wastewater in the pipes from mixing with the current sample and affecting the test results.
[0038] This utility model is equipped with a sealing component 4. When the water storage cup 3 rises along with the storage plate 2 driven by the hydraulic rod 13, the sealing plate 401 inside the water storage cup 3 will be pushed by the water injection head 902, which will pull the spring 402 to move into the water storage cup 3. This allows the water injection head 902 to inject the wastewater sample into the water storage cup 3. After the water is taken out, the hydraulic rod 13 retracts, causing the water storage cup 3 to move down. The sealing plate 401 is no longer under the pressure of the water injection head 902, and will move due to the rebound force of the spring 402, thereby sealing the mouth of the water storage cup 3 and preventing the wastewater sample inside from being contaminated and affecting the test results.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic sampling device for wastewater outfall, comprising a body (1), characterized in that: The cavity is arranged in the machine body (1), the storage plate (2) is movably connected in the cavity, the placing groove is arranged on the storage plate (2), the water storage cup (3) is arranged in the placing groove, the sealing assembly (4) is arranged in the water storage cup (3), the partition plate (5) is fixedly connected on the cavity inner wall of the machine body (1), the water pump (6) is fixedly connected on the partition plate (5), the water inlet pipe (7) is communicated with one end of the water pump (6), the water outlet pipe (8) is communicated with the other end of the water pump (6), the water injection assembly (9) is arranged on the water outlet pipe (8), the corrugated pipe (16) is fixedly connected on the water inlet pipe (7), the water suction head (10) is fixedly connected on the corrugated pipe (16), the adjusting assembly (11) is arranged on one side of the machine body (1), the adjusting assembly (11) is used for adjusting the height of the water suction head (10), and the machine door (12) is rotatably connected on the machine body (1).
2. An automatic sampling device for a wastewater outfall according to claim 1, characterised in that: The hydraulic rod (13) is fixedly connected on the cavity inner wall of the machine body (1), the lifting platform (14) is fixedly connected on the movable end of the hydraulic rod (13), the first motor (15) is fixedly connected in the lifting platform (14), and the storage plate (2) is fixedly connected on the output end of the first motor (15).
3. An automatic wastewater sampling device according to claim 1, wherein: The sealing assembly (4) comprises a sealing plate (401), a groove is arranged in the water storage cup (3), the spring (402) is fixedly connected in the groove, the sealing plate (401) is fixedly connected on one end of the spring (402), and the sealing ring (403) is fixedly connected on the sealing plate (401).
4. An automatic wastewater sampling device according to claim 1, wherein: The water injection assembly (9) comprises a water injection valve (901), the water injection valve (901) is detachably connected on the water outlet pipe (8), the water injection head (902) is fixedly connected on the water injection valve (901), and the water injection head (902) corresponds to the water storage cup (3).
5. An automatic wastewater sampling device according to claim 4, wherein: The water outlet valve (903) is fixedly connected on the water outlet pipe (8), the drain pipe (904) is fixedly connected on the water outlet valve (903), and the suspension ball (905) is fixedly connected on the drain pipe (904).
6. An automatic wastewater sampling device according to claim 1, wherein: The adjusting assembly (11) comprises a second motor (111), the second motor (111) is fixedly connected on one side of the machine body (1), the winding wheel (112) is fixedly connected on the output end of the second motor (111), the steel cable (113) is wound on the winding wheel (112), one end of the steel cable (113) is fixedly connected on the inner wall of the winding wheel (112), and the other end of the steel cable (113) is fixedly connected on the water suction head (10).