Multi-point sampling device for wastewater detection

Abstract

The invention relates to a multipoint sampling device for wastewater detection, and relates to the technical field of wastewater detection.The multipoint sampling device comprises a sampling vehicle, a supporting frame is arranged on the sampling vehicle, a miniature water suction pump is arranged in the supporting frame, the input end of the miniature water suction pump is connected with a sampling pipe, and the output end of the miniature water suction pump is connected with an output pipe; one end of the output pipe is connected with the output end of the micro water suction pump, the other end of the output pipe is connected with a liquid outlet head, a valve is arranged on the liquid outlet head, and a sampling bottle is arranged under a liquid outlet of the liquid outlet head. The multi-point sampling device for wastewater detection has the advantages that time and labor are saved, so that the sampling efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater detection, and in particular to a multi-point sampling device for wastewater detection. Background Art

[0002] At present, wastewater containing heavy metals is discharged from industrial production processes such as mining, machinery manufacturing, chemical industry, electronics, and instrumentation. Heavy metal wastewater is one of the most serious industrial wastewaters that pollutes the environment and is most harmful to humans. It is often treated by chemical precipitation and ion exchange methods. At present, the heavy metal content needs to be sampled and tested before and after industrial wastewater treatment. The single-point sampling error is large and cannot accurately reflect the content of heavy metals in the wastewater. Therefore, people have stricter requirements for multi-point sampling devices for wastewater testing.

[0003] CN213985843U discloses a rapid sampling device for industrial wastewater detection, including a cylinder, a push rod coaxially sleeved inside the cylinder and slidingly matched with the cylinder along the axial direction; the cylinder includes a plurality of sampling units connected head to tail, each sampling unit includes a sampling cylinder with a sealed head end and an open tail end, and a connecting portion with one side open when the head end is connected to the tail end of the sampling cylinder; a sampling port is provided on one side of the head end of each sampling cylinder, and a push rod hole matching the push rod is provided at the head end of each sampling cylinder, and the push rod slides in the push rod hole of each sampling cylinder, and a plurality of piston assemblies that are sealed and slide-matched inside the corresponding sampling cylinder are arranged on the push rod at intervals. The sampling device can complete multi-point sampling at one time, reduce sampling errors, and the piston assembly of the sampling device can move axially relative to the push rod, and can be laid out synchronously after sampling, or can be laid out one by one for convenient sample collection.

[0004] However, the existing sampling device requires placing the sampling bottle in the wastewater, and then pulling it up after it is filled with wastewater, relying on manual sampling. This process is not only time-consuming and laborious, but also has certain safety hazards and is prone to accidents. Summary of the invention

[0005] The present application provides a multi-point sampling device for wastewater detection, which saves time and effort, thereby greatly improving the sampling efficiency.

[0006] The present application provides a multi-point sampling device for wastewater detection, which adopts the following technical solution: A multi-point sampling device for wastewater detection comprises a sampling vehicle, a support frame is provided on the sampling vehicle, a micro water pump is provided inside the support frame, an input end of the micro water pump is connected to a sampling tube, an output end of the micro water pump is connected to an output tube, one end of the output tube is connected to the output end of the micro water pump, and the other end of the output tube is connected to a liquid outlet head, a valve is provided on the liquid outlet head, and a sampling bottle is provided directly below the liquid outlet of the liquid outlet head.

[0007] By adopting the above technical scheme, since the existing sampling device puts the sampling bottle into the wastewater, after the wastewater in the sampling bottle is filled, the sampling bottle is pulled upward to manually sample the wastewater, which is not only time-consuming and labor-intensive, but also prone to accidents and low safety. Therefore, by providing a sampling vehicle, it is convenient to move the sampling device to the sampling point, insert the sampling tube into the wastewater, and use a micro-pump to extract the wastewater, so that the wastewater passes through the output pipe and enters the sampling bottle through the liquid outlet head, thereby realizing the function of wastewater sampling. In this process, through fully automated extraction, not only time and labor are saved, but also the sampling efficiency is greatly improved.

[0008] Preferably, a mounting support is provided on the sampling vehicle, the support frame is rotatably mounted on the mounting support, the support frame is an arc-shaped structure, and an arc-shaped groove for the sampling tube to pass through is provided on the inner wall of the support frame.

[0009] By adopting the above technical solution, since the middle part of the sampling tube will be folded when it is placed in the wastewater, it will be difficult for the wastewater to be quickly sucked into the sampling bottle. Therefore, by providing a support frame with an arc-shaped structure, it is convenient to reasonably utilize the upper space of the sampling vehicle, and the arc-shaped grooves provided on the support frame can effectively organize the sampling tubes to avoid folding of the sampling tubes and affecting the normal transportation of wastewater.

[0010] Preferably, one end of the sampling tube is connected to the input end of a micro water pump, and the other end of the sampling tube is connected to a sampling head, wherein the sampling head is a columnar structure with a hollow interior, and the outer wall of the sampling head is provided with a plurality of channels evenly arranged at equal angles around the central axis of the sampling head, and a first pipe, a second pipe and a third pipe are arranged inside the channels, and solenoid valves are arranged inside the first pipe, the second pipe and the third pipe.

[0011] By adopting the above technical solution, in view of the suspension of soluble substances in wastewater, in order to achieve all-round extraction of wastewater and ensure the accuracy of experimental data, multiple groups of channels are designed on the outside of the sampling head. The arrangement of these channels is carefully designed to achieve the effect of all-round extraction of wastewater. A first pipeline, a second pipeline and a third pipeline are arranged inside each channel, so as to achieve multi-pipeline parallel extraction. This design significantly improves the comprehensiveness of wastewater extraction and the accuracy of data collection.

[0012] Preferably, the interior of the liquid outlet head is a hollow structure, and an outlet and an inlet are respectively formed at both ends of the liquid outlet head, the inlet of the liquid outlet head is connected to the output pipe, and the outlet of the liquid outlet head is connected to a limiting flow plate, the limiting flow plate and the liquid outlet head are connected by a rotating shaft, and a clip spring is provided on the outside of the rotating shaft.

[0013] By adopting the above technical solution, a flow limiting plate is set at the position of the liquid outlet, and the flow limiting plate rotates on the rotating shaft through the clip spring; when the flow rate of the wastewater through the outlet of the liquid outlet is too large, the limiting effect of the flow limiting plate can effectively reduce the flow rate of the wastewater at the outlet, so that the wastewater can smoothly fill the sampling bottle and avoid splashing during the filling process.

[0014] Preferably, a hanging rod is provided on the support frame, a hook is provided at the end of the hanging rod, and a hanging ear is provided on the outside of the sampling bottle, and the hanging ear is detachably mounted on the hook.

[0015] By adopting the above technical solution, by setting a hanging ear on the outside of the sampling bottle, it can be stably hung on the support frame; when a certain amount of wastewater is collected inside the sampling bottle, the user can easily remove it for subsequent wastewater testing.

[0016] Preferably, a sleeve is provided inside the sampling vehicle, and the sleeve is used to stack a plurality of sampling bottles in the longitudinal direction. The sleeve is located directly below the liquid outlet of the liquid outlet head, and a notch is provided on one side of the top of the sleeve.

[0017] By adopting the above technical solution, since the disassembly process of the sampling bottles is relatively cumbersome, including removing the bottles after sampling and installing new sampling bottles, a sleeve suitable for stacking sampling bottles is designed; when the sampling bottles of the upper layer are removed, the sampling bottles of the lower layer will be automatically exposed to the outside, and their bottle mouths are directly opposite to the liquid outlet of the liquid outlet head; this design significantly saves the time required for replacing the sampling bottles and improves the efficiency of the operation.

[0018] Preferably, a cylinder is provided inside the sleeve, and an output end of the cylinder is connected to a lifting plate, and the lifting plate is used to stack the sampling bottles layer by layer.

[0019] By adopting the above technical solution, the power supply of the cylinder is started to control the lifting plate to move up and down inside the sleeve. When the sampling bottles after sampling in the upper layer are removed, the lifting plate rises, so that the sampling bottles in the next layer are exposed to the outside and move upward, so as to shorten the distance between the bottle mouth of the sampling bottle and the liquid outlet of the liquid outlet head, thereby avoiding splashing of waste water.

[0020] Preferably, a placement opening for placing a sampling bottle is provided on one side of the sleeve near the bottom.

[0021] By adopting the above technical solution and setting the placement opening, the sampling bottles can be easily installed in the sleeve in an orderly manner in layers.

[0022] Preferably, a turntable is rotatably provided inside the sleeve, and connecting rods are provided on the upper side of the turntable and at equal angles around the central axis of the turntable, and several groups of the connecting rods form lateral blocking members on the outside of the sampling bottle, and the lateral blocking members are provided with notches.

[0023] By adopting the above technical solution, during the stacking process of the sampling bottles, the placement opening and the notch can be accurately aligned by rotating the turntable. After the sampling bottles in the sleeve are stacked, the user can continue to rotate the turntable to align the lateral blocking member with the placement opening, thereby effectively closing the opening and preventing the sampling bottles from falling during the lifting process. This design improves the safety and stability of the system.

[0024] Preferably, the output end of the cylinder passes through the center of the turntable, and the lifting plate is located on the inner side of the lateral blocking member.

[0025] By adopting the above technical solution, the lifting plate can be lifted and lowered smoothly in the lateral blocking member without interfering with the normal rotation of the turntable, which reflects its excellent practicality.

[0026] In summary, this application has the following beneficial effects: 1. By equipping a sampling vehicle, the sampling device can be easily moved so that it can be placed at a precise sampling point. Then, the sampling tube is inserted into the wastewater, and a micro-pump is used to extract the wastewater, so that it passes smoothly through the output pipe and is introduced into the sampling bottle through the liquid outlet head, thereby achieving efficient sampling of the wastewater. In this process, the fully automated extraction system not only effectively reduces the need for manual intervention, saves time and manpower, but also significantly improves the sampling efficiency.

[0027] 2. By setting the sleeve, the sampling bottles can be stacked in an orderly manner. When the upper layer of the sampling bottles is removed, the sampling bottles of the next layer will be automatically exposed to the outside, and their bottle mouths will face the liquid outlet of the liquid outlet head. This design effectively shortens the time for replacing the sampling bottles and improves the efficiency of the overall sampling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the overall structure of the multi-point sampling device for wastewater detection in this embodiment; Figure 2 Schematic diagram of the overall structure of the sampling head in this embodiment; Figure 3 In this embodiment Figure 1 The enlarged structural diagram at A in the middle; Figure 4 Schematic diagram of the overall structure of the sleeve in this embodiment; Figure 5 It is a cross-sectional view of the sleeve in this embodiment.

[0029] Explanation of the reference numerals in the accompanying drawings: 1. Sampling vehicle; 2. Support frame; 3. Micro water pump; 4. Sampling tube; 5. Output tube; 6. Liquid outlet head; 7. Valve; 8. Sampling bottle; 9. Mounting support; 10. Sampling head; 11. Channel; 12. First pipeline; 13. Second pipeline; 14. Third pipeline; 15. Underwater detection head; 16. Limiting plate; 17. Rotating shaft; 18. Clip spring; 19. Hanging rod; 20. Hook; 21. Hanging ear; 22. Sleeve; 23. Notch; 24. Cylinder; 25. Lifting plate; 26. Placement port; 27. Turntable; 28. Connecting rod; 29. ​​Notch; 30. First gear; 31. Second gear; 32. Driving motor. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0031] Embodiment: The present invention discloses a multi-point sampling device for wastewater detection, such as Figure 1 As shown, it includes a sampling vehicle 1, on which a support frame 2 is provided, and a micro-water pump 3 is provided inside the support frame 2. The input end of the micro-water pump 3 is connected to a sampling tube 4, and the output end of the micro-water pump 3 is connected to an output tube 5, one end of the output tube 5 is connected to the output end of the micro-water pump 3, and the other end of the output tube 5 is connected to a liquid outlet head 6, on which a valve 7 is provided, and a sampling bottle 8 is provided just below the liquid outlet of the liquid outlet head 6; because the existing sampling device puts the sampling bottle 8 into the wastewater, after the wastewater in the sampling bottle 8 is filled, the sampling bottle 8 is pulled upwards to manually sample the wastewater, which is not only time-consuming and labor-intensive, but also prone to accidents and low safety. Therefore, by providing a sampling vehicle 1, it is convenient to move the sampling device to the sampling point, insert the sampling tube 4 into the wastewater, and use the micro-water pump 3 to extract the wastewater. The wastewater is made to pass through the output pipe 5 and enter the sampling bottle 8 through the liquid outlet head 6 to achieve the purpose of wastewater sampling. In this process, the fully automated extraction not only saves time and effort, but also greatly improves the efficiency of sampling. The sampling vehicle 1 is provided with a mounting support 9, and the support frame 2 is rotatably arranged on the mounting support 9. The support frame 2 is an arc-shaped structure, and an arc-shaped groove for the sampling tube 4 to pass through is arranged on the inner wall of the support frame 2. When the sampling tube 4 is placed in the wastewater, the middle part of the sampling tube 4 will fold, which makes it difficult for the wastewater to be quickly sucked into the sampling bottle 8. Therefore, by providing a support frame 2 with an arc-shaped structure, it is convenient to reasonably utilize the upper space of the sampling vehicle 1, and by providing the arc-shaped groove on the support frame 2, the sampling tube 4 can be effectively summarized to avoid the folding of the sampling tube 4 and affect the normal transportation of the wastewater.

[0032] like Figure 2 As shown, one end of the sampling tube 4 is connected to the input end of the micro water pump 3, and the other end of the sampling tube 4 is connected to the sampling head 10. The sampling head 10 is a columnar structure with a hollow interior. The outer wall of the sampling head 10 is evenly provided with a plurality of channels 11 at equal angles around the central axis of the sampling head 10. The interior of the channel 11 is provided with a first pipeline 12, a second pipeline 13 and a third pipeline 14. The interiors of the first pipeline 12, the second pipeline 13 and the third pipeline 14 are all provided with electromagnetic valves. Since the soluble substances present in the wastewater are suspended in the wastewater, in order to extract the wastewater in an all-round way and ensure the accuracy of the experimental data, a plurality of groups of channels 11 are provided at equal angles on the outer side of the sampling head 10 for extracting the wastewater in an all-round way. By providing the first pipeline 12, the second pipeline 13 and the third pipeline 14 in a single channel 11, the extraction of wastewater through multiple pipelines is achieved to ensure the accuracy of the data. The inlet of the first pipe 12 is inclined upward, the inlet of the second pipe 13 is horizontally centered, and the inlet of the third pipe 14 is inclined downward, which is used to absorb wastewater around the channel 11 in all directions. An underwater detection head 15 is provided at the bottom of the sampling head 10 for visualizing the underwater space of the wastewater.

[0033] like Figure 3 As shown, the interior of the liquid outlet head 6 is a hollow structure, and an outlet and an inlet are formed at both ends of the liquid outlet head 6 respectively, the inlet of the liquid outlet head 6 is connected to the output pipe 5, and the outlet of the liquid outlet head 6 is connected to a limiting plate 16, and the limiting plate 16 is connected to the liquid outlet head 6 through a rotating shaft 17, and a clip spring 18 is provided on the outer side of the rotating shaft 17; by providing a limiting plate 16 at the position of the liquid outlet head 6, the limiting plate 16 rotates on the rotating shaft 17 through the clip spring 18, when the outlet flow rate of the wastewater passing through the liquid outlet head 6 is too large, the limiting plate 16 can effectively reduce the flow rate of the wastewater passing through the outlet of the liquid outlet head 6 through the limiting position, so that the wastewater can fill the sampling bottle 8 smoothly, and avoid splashing of the wastewater when it is poured into the sampling bottle 8.

[0034] like Figure 3 As shown, a hanging rod 19 is provided on the support frame 2, a hook 20 is provided at the end of the hanging rod 19, and a hanging ear 21 is provided on the outside of the sampling bottle 8, and the hanging ear 21 is detachably arranged on the hook 20; by providing a hanging ear 21 on the outside of the sampling bottle 8, the sampling bottle 8 is hung on the support frame 2, and when a certain amount of wastewater is collected inside the sampling bottle 8, the sampling bottle 8 can be removed for subsequent wastewater detection.

[0035] like Figure 4As shown, a sleeve 22 is provided inside the sampling vehicle 1, and the sleeve 22 is used to stack a plurality of sampling bottles 8 in the longitudinal direction. The sleeve 22 is located directly below the liquid outlet of the liquid outlet head 6, and a notch 23 is provided on one side of the top of the sleeve 22. Since the disassembly of the sampling bottles 8 is relatively cumbersome, it is relatively cumbersome to remove the sampling bottles 8 after sampling and then install new sampling bottles 8. Therefore, the sleeve 22 is provided to stack the sampling bottles 8 layer by layer. When the sampling bottles 8 after sampling in the upper layer are removed, the sampling bottles 8 in the lower layer are exposed to the outside, and the bottle mouths of the sampling bottles 8 face the The liquid outlet of the liquid outlet head 6 is used to save time for replacing the sampling bottles 8; a cylinder 24 is provided inside the sleeve 22, and the output end of the cylinder 24 is connected to a lifting plate 25, and the lifting plate 25 is used to stack the sampling bottles 8 layer by layer; by starting the power supply of the cylinder 24, the lifting plate 25 is controlled to move up and down inside the sleeve 22. When the sampling bottles 8 of the upper layer after sampling are removed, the lifting plate 25 rises, so that the sampling bottles 8 of the next layer are exposed to the outside and move upward, so as to shorten the distance between the bottle mouth of the sampling bottle 8 and the liquid outlet of the liquid outlet head 6, and avoid waste water splashing.

[0036] like Figure 5 As shown, a placement port 26 for placing the sampling bottle 8 is provided on one side of the sleeve 22 near the bottom; the placement port 26 is provided to facilitate the installation of the sampling bottles 8 layer by layer in the sleeve 22; a turntable 27 is provided inside the sleeve 22 for rotation, a first gear 30 is provided at the bottom of the turntable 27, a second gear 31 is connected to the bottom of the first gear 30, and a driving motor 32 is connected to the second gear 31, and the driving motor 32 is fixed in the sleeve 22, and connecting rods 28 are provided at equal angles on the upper side of the turntable 27 and around the central axis of the turntable 27, and a plurality of groups of connecting rods 28 form lateral blocking members on the outside of the sampling bottle 8, and the side A notch 29 is provided on the lateral blocking member; in the process of stacking the sampling bottles 8 layer by layer, the placement opening 26 is made to correspond to the notch 29 by rotating the turntable 27. When the sampling bottles 8 in the sleeve 22 are stacked layer by layer, the user can rotate the turntable 27 to make the lateral blocking member located at the placement opening 26, which can effectively seal the placement opening 26 to prevent the sampling bottles 8 from falling during the lifting process; the output end of the cylinder 24 passes through the center position of the turntable 27, and the lifting plate 25 is located on the inner side of the lateral blocking member; under the premise of not affecting the rotation of the turntable 27, the lifting and lowering of the lifting plate 25 in the lateral blocking member is realized, which has strong practicality.

[0037] Working principle: Before use, the user first rotates the turntable 27 to make the notch 29 correspond to the placement port 26, then passes the sampling bottle 8 through the placement port 26 and places it on the inner side of the connecting rod 28. The sampling bottle 8 slides along the inner side of the connecting rod 28 to the lifting plate 25, and then installs the sampling bottles 8 layer by layer so that the sampling bottles 8 are stacked in the sleeve 22, and then rotates the turntable 27 so that the connecting rod 28 is located at the placement port 26.

[0038] The sampling vehicle 1 is moved to the sampling point, and then the sampling tube 4 is removed and inserted into the wastewater, and the wastewater is extracted by the micro pump 3, so that the wastewater passes through the output pipe 5 and enters the sampling bottle 8 through the liquid outlet head 6, thereby realizing the wastewater sampling. In this process, the fully automated extraction not only saves time and effort, but also greatly improves the sampling efficiency.

[0039] When the sampling bottles 8 of the upper layer have finished sampling, the power of the cylinder 24 is started to control the lifting plate 25 to move up and down inside the sleeve 22. When the sampling bottles 8 of the upper layer after sampling are removed, the lifting plate 25 rises, so that the sampling bottles 8 of the next layer are exposed to the outside and move upward to shorten the distance between the bottle mouth of the sampling bottle 8 and the liquid outlet of the liquid outlet head 6 to avoid splashing of waste water.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-point sampling device for wastewater detection, comprising a sampling vehicle (1), characterized in that: The sampling vehicle (1) is provided with a support frame (2), a micro water pump (3) is provided inside the support frame (2), the input end of the micro water pump (3) is connected to a sampling tube (4), the output end of the micro water pump (3) is connected to an output tube (5), one end of the output tube (5) is connected to the output end of the micro water pump (3), the other end of the output tube (5) is connected to a liquid outlet head (6), a valve (7) is provided on the liquid outlet head (6), and a sampling bottle (8) is provided directly below the liquid outlet of the liquid outlet head (6).

2. The multi-point sampling device for wastewater detection according to claim 1, characterized in that: The sampling vehicle (1) is provided with a mounting support (9), the support frame (2) is rotatably mounted on the mounting support (9), the support frame (2) is an arc-shaped structure, and an arc-shaped groove for the sampling tube (4) to pass through is provided on the inner wall of the support frame (2).

3. The multi-point sampling device for wastewater detection according to claim 1, characterized in that: One end of the sampling tube (4) is connected to the input end of the micro water pump (3), and the other end of the sampling tube (4) is connected to a sampling head (10); the sampling head (10) is a columnar structure with a hollow interior; the outer wall of the sampling head (10) is evenly provided with a plurality of channels (11) at equal angles around the central axis of the sampling head (10); a first pipeline (12), a second pipeline (13) and a third pipeline (14) are provided inside the channels (11); and electromagnetic valves are provided inside the first pipeline (12), the second pipeline (13) and the third pipeline (14).

4. The multi-point sampling device for wastewater detection according to claim 1, characterized in that: The interior of the liquid outlet head (6) is a hollow structure, and an outlet and an inlet are formed at both ends of the liquid outlet head (6), the inlet of the liquid outlet head (6) is connected to the output pipe (5), and the outlet of the liquid outlet head (6) is connected to a flow limiting plate (16), and the flow limiting plate (16) and the liquid outlet head (6) are connected via a rotating shaft (17), and a clip spring (18) is provided on the outer side of the rotating shaft (17).

5. The multi-point sampling device for wastewater detection according to claim 1, characterized in that: The support frame (2) is provided with a hanging rod (19), the end of the hanging rod (19) is provided with a hook (20), the outside of the sampling bottle (8) is provided with a hanging ear (21), and the hanging ear (21) is detachably arranged on the hook (20).

6. The multi-point sampling device for wastewater detection according to claim 1, characterized in that: The sampling vehicle (1) is provided with a sleeve (22) inside, and the sleeve (22) is used to stack a plurality of sampling bottles (8) in the longitudinal direction. The sleeve (22) is located directly below the liquid outlet of the liquid outlet head (6), and a notch (23) is provided on one side of the top of the sleeve (22).

7. The multi-point sampling device for wastewater detection according to claim 6, characterized in that: A cylinder (24) is provided inside the sleeve (22), and an output end of the cylinder (24) is connected to a lifting plate (25), and the lifting plate (25) is used to stack the sampling bottles (8) layer by layer.

8. The multi-point sampling device for wastewater detection according to claim 6, characterized in that: A placement opening (26) for placing a sampling bottle (8) is provided on one side of the sleeve (22) near the bottom.

9. The multi-point sampling device for wastewater detection according to claim 6, characterized in that: A turntable (27) is rotatably provided inside the sleeve (22), and connecting rods (28) are provided on the upper side of the turntable (27) and at equal angles around the central axis of the turntable (27). Several groups of the connecting rods (28) form lateral blocking members on the outer side of the sampling bottle (8), and the lateral blocking members are provided with notches (29).

10. The multi-point sampling device for wastewater detection according to claim 7, characterized in that: The output end of the cylinder (24) passes through the center of the rotating disk (27), and the lifting disk (25) is located on the inner side of the lateral blocking member.

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