Different-depth sampling device for sewage treatment

Abstract

The utility model relates to the technical field of water quality sampling devices, in particular to a different-depth sampling device for sewage treatment. According to the technical scheme, the device comprises a protective shell, a sampling barrel is arranged in the protective shell, a liquid inlet pipe is installed on the outer wall of the sampling barrel, a rubber piston is movably installed in the sampling barrel, an inserting part is fixedly installed at the top end of the protective shell, and a sleeving part is fixedly installed at the end, away from the inserting part, of the protective shell; the inserting part and the sleeving part are used for assembling and splicing two adjacent protective shells, and pull rods are movably mounted on the protective shells and used for pulling the rubber pistons to move upwards. According to the utility model, through the clamping of the inserting part and the sleeving part, a plurality of protective shells can be spliced together, the overall length of the sampling device is convenient to adjust, the sampling requirements of different water depth environments can be met, the rubber piston is driven by the pull rod to move upwards, water can be conveniently pumped into the sampling barrel, when the device is withdrawn, a sample can be prevented from scattering, and the sampling efficiency is improved. The applicability of the sampling device is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of water quality sampling devices, and in particular to a sampling device for different depths used in sewage treatment. Background Technology

[0002] Sampling at different depths during wastewater treatment aims to comprehensively understand the water quality at various depths, including differences in pollutant concentration and composition. This allows for a more accurate assessment of the overall wastewater condition, providing a basis for developing treatment plans and evaluating their effectiveness. Sampling can be performed by throwing the device, which includes sampling containers, into the water. The containers are arranged vertically and evenly within the device, enabling sampling at different depths.

[0003] However, in actual sampling processes, due to the need to deal with different water environments, traditional sampling devices are difficult to meet the needs of deep water sampling when the water depth is greater than the height of the sampling device. If multiple sampling containers are tied to a rope for throwing and sampling, the water inside the sampling containers is easily spilled when the sampling containers are retrieved, which significantly reduces the applicability of the sampling device. Therefore, this application proposes a different depth sampling device for sewage treatment that can be applied to different water depth areas. Utility Model Content

[0004] The purpose of this invention is to address the problems in the prior art that make it difficult to meet the sampling needs of different aquatic environments and that samples are easily spilled, and to propose a different depth sampling device for sewage treatment that can be applied to different water depth areas.

[0005] The technical solution of this utility model: A sampling device for wastewater treatment at different depths, comprising a protective shell, a sampling cylinder inside the protective shell, an inlet pipe fixedly installed on the outer wall of the sampling cylinder, and a rubber piston movably installed inside the sampling cylinder, and further comprising:

[0006] The plug-in part is fixedly installed on the top of the protective shell, and a sleeve part is fixedly installed on the protective shell at one end away from the plug-in part. The plug-in part and the sleeve part are used for assembling and splicing two adjacent protective shells.

[0007] A pull rod, movably mounted on the protective shell, is used to pull the rubber piston upward.

[0008] Optionally, a T-shaped connecting plate is fixedly installed on the pull rod, a positioning rod is fixedly installed at the top of the T-shaped connecting plate, a piston rod is fixedly installed on the rubber piston, a pull plate is fixedly installed at the top of the piston rod, and the positioning rod is inserted into a positioning hole drilled in the pull plate and engaged with it.

[0009] Optionally, a groove is chiseled on the inner wall of the protective shell, one end of the T-shaped connecting plate is inserted into the groove and slidably connected thereto, the bottom end of the pull rod is provided with a circular slot, and the top end of the pull rod is fixedly installed with a connecting post head, which is inserted into a matching circular slot and fixed with bolts.

[0010] Optionally, the protective shell has an assembly port and a pressure port, the pressure port and the assembly port are connected to each other, and the liquid inlet pipe passes through the pressure port and extends to the outside of the protective shell.

[0011] Optionally, a semi-circular sealing plate is fixedly installed on the outer side wall of the protective shell. The semi-circular sealing plate is located outside the pressure inlet and assembly port. A semi-circular sealing gasket is fixedly installed on the inner side wall of the semi-circular sealing plate. The inner side wall of the semi-circular sealing gasket is in close contact with the outer side wall of the protective shell. One end of the liquid inlet pipe passes through the semi-circular sealing gasket and the semi-circular sealing plate in sequence.

[0012] Optionally, a limiting seat is fixedly installed inside the protective shell, and the bottom end of the sampling tube is inserted into the groove at the top of the limiting seat and engaged with it.

[0013] Optionally, a locking buckle is fixedly installed on the outer wall of the sampling tube, and a locking insert is fixedly installed on the inner side wall of the semi-circular sealing plate. The locking insert passes through the matching locking buckle and engages with it.

[0014] Optionally, the top and bottom of the protective shell are both chiseled with circular openings, and the two ends of the pull rod that are far apart pass through the matching circular openings and are movably connected to them. The plug-in part and the sleeve part are both chiseled with internal threaded through holes, and the sleeve part is chiseled with bolt adjustment holes.

[0015] Compared with the prior art, this application includes at least one of the following beneficial technical effects: multiple protective shells can be spliced ​​together by the snap-fit ​​of the plug and the sleeve, which facilitates the adjustment of the overall length of the sampling device and can meet the sampling needs of different water depth environments. The rubber piston is driven to move upward by the pull rod, which facilitates the pumping of water into the sampling cylinder. When the device is retracted, the sample can be prevented from spilling, which effectively improves the applicability of the sampling device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the protective shell of this utility model;

[0018] Figure 3 This is a cross-sectional view of the protective shell of this utility model;

[0019] Figure 4 forFigure 3 Enlarged diagram of A in the middle;

[0020] Figure 5 This is a schematic diagram of the sampling cylinder structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the semi-circular sealing plate structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the tie rod assembly of this utility model.

[0023] Reference numerals: 1. Protective shell; 11. Assembly port; 12. Press-in port; 13. Limiting seat; 14. Slide groove;

[0024] 2. Connecting part;

[0025] 3. Semi-circular sealing plate; 31. Semi-circular sealing gasket; 32. Locking insert plate;

[0026] 4. Liquid inlet pipe;

[0027] 5. Socket part;

[0028] 6. Tie rod; 61. Connecting column head; 62. T-shaped connecting plate; 63. Positioning rod;

[0029] 7. Sampling cylinder; 71. Rubber piston; 72. Piston rod; 73. Locking buckle; 74. Pull plate;

[0030] 8. Circular opening;

[0031] 9. Internal thread through hole;

[0032] 10. Bolt adjustment hole. Detailed Implementation

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0034] like Figure 1 , Figure 2 , Figure 5 and Figure 7As shown, this utility model proposes a wastewater treatment sampling device for different depths, including a protective shell 1. A sampling cylinder 7 is located inside the protective shell 1. An inlet pipe 4 is fixedly installed on the outer wall of the sampling cylinder 7. A rubber piston 71 is movably installed inside the sampling cylinder 7. When the rubber piston 71 moves upward, water can be drawn into the sampling cylinder 7 from the inlet pipe 4. This prevents water samples from spilling when the sampling device is retracted. A plug-in part 2 is fixedly installed at the top of the protective shell 1, and a sleeve part 5 is fixedly installed at the bottom. When multiple protective shells 1 need to be assembled into one unit, the plug-in part 2 is inserted into the sleeve part 5 and fixed with bolts, ensuring the strong connection between adjacent protective shells 1. The overall length of the sampling device can be adjusted according to the water depth to ensure that the sampling device can meet the sampling needs of different water depth environments. A pull rod 6 is movably installed inside the protective shell 1, with its bottom end open... The pull rod 6 has a circular slot structure, and a connecting head 61 is fixedly installed at the top of the pull rod 6. When multiple protective shells 1 are spliced ​​together, the connecting head 61 is inserted into the circular slot structure above it and locked and fixed by bolts to ensure that multiple pull rods 6 can be firmly connected as one, so that the overall length of the pull rod 6 matches the overall length of the spliced ​​protective shell 1. A piston rod 72 is fixedly installed on the rubber piston 71, and a pull plate 74 is fixedly installed at the top of the piston rod 72. A T-shaped connecting plate 62 is fixedly installed on the pull rod 6, and a positioning rod 63 is fixedly installed at the top of the T-shaped connecting plate 62. The positioning rod 63 is inserted into the positioning hole drilled on the pull plate 74 and engages with it. When the staff pulls the pull rod 6, it can drive multiple piston rods 72 to move upward, ensuring that multiple rubber pistons 71 can move upward synchronously, so that water quality samples can be drawn into the sampling cylinders 7 distributed at different water depths.

[0035] like Figure 2 , Figure 3 and Figure 7 As shown, in order to improve the stability when the piston rod 72 is pulled, a groove 14 is cut on the inner side wall of the protective shell 1. One end of the T-shaped connecting plate 62 is inserted into the matching groove 14 and slidably connected with it. The groove 14 limits the T-shaped connecting plate 62 in the horizontal direction, which effectively improves the stability when the pull rod 6 is pulled in the vertical direction, and then drives the piston rod 72 to move upward stably.

[0036] like Figure 2 and Figure 3As shown, to facilitate the installation of the sampling cylinder 7, an assembly port 11 and a pressure port 12 are cut into the protective shell 1. The pressure port 12 is connected to the assembly port 11. After the sampling cylinder 7 is inserted into the protective shell 1 through the assembly port 11, the sampling cylinder 7 is pushed downward. At this time, the liquid inlet pipe 4 enters the pressure port 12, ensuring that the water inlet end of the liquid inlet pipe 4 can extend to the outside of the protective shell 1. A limiting seat 13 is fixedly installed inside the protective shell 1. The bottom end of the sampling cylinder 7 is inserted into the groove at the top of the limiting seat 13 and engaged with it. The limiting seat 13 supports and limits the bottom end of the sampling cylinder 7, effectively improving the stability of the sampling cylinder 7 installed inside the protective shell 1.

[0037] like Figure 1 , Figure 2 and Figure 6 As shown, in order to prevent sewage from entering the interior of the protective shell 1 and improve the protection of the sampling cylinder 7 and the pull rod 6, a semi-circular sealing plate 3 is fixedly installed on the outer wall of the protective shell 1. A semi-circular sealing gasket 31 is fixedly installed on the inner wall of the semi-circular sealing plate 3. When the semi-circular sealing plate 3 is fixed to the outer wall of the protective shell 1 by bolts, the semi-circular sealing gasket 31 is in close contact with the outer wall of the protective shell 1. At this time, the assembly port 11 and the pressure port 12 are both covered by the semi-circular sealing gasket 31, which effectively prevents sewage from entering the interior of the protective shell 1 and avoids foreign objects in the sewage from adhering to the sampling cylinder 7 and the pull rod 6.

[0038] Secondly, both the semi-circular sealing plate 3 and the semi-circular sealing gasket 31 have small circular holes. During the process of installing the semi-circular sealing plate 3 onto the protective shell 1, the liquid inlet pipe 4 passes through the aforementioned small circular holes and extends to the outside of the semi-circular sealing plate 3, ensuring that the inlet end of the liquid inlet pipe 4 can contact the water source, making it convenient to obtain water quality samples.

[0039] like Figure 3 , Figure 4 and Figure 7 As shown, in order to improve the firmness of the sampling cylinder 7 after installation, a locking buckle 73 is fixedly installed on the outer wall of the sampling cylinder 7, and a locking insert 32 is fixedly installed on the inner side wall of the semi-arc sealing plate 3. When the semi-arc sealing plate 3 is fixedly assembled on the protective shell 1, the end of the locking insert 32 passes through the locking buckle 73 and engages with it, thereby pressing and fixing the sampling cylinder 7. When the pull rod 6 drives the piston rod 72 to move upward, it can prevent the sampling cylinder 7 from being moved upward, ensuring that the sampling cylinder 7 can be firmly installed inside the protective shell 1, preventing the liquid inlet pipe 4 from moving vertically, avoiding bending of the part of the liquid inlet pipe 4 that contacts the semi-arc sealing plate 3, and effectively reducing the probability of damage to the liquid inlet pipe 4.

[0040] Furthermore, in order to facilitate locking and fixing the plug part 2 inside the socket part 5, internal threaded through holes 9 are drilled on the plug part 2 and the socket part 5. When the plug part 2 is inserted into the socket part 5, a bolt is threaded and installed at the internal threaded through hole 9, which can lock and fix the plug part 2 inside the socket part 5, thereby improving the firmness of the connection between the two.

[0041] Secondly, to facilitate the assembly of the pull rod 6, circular openings 8 are drilled at the top and bottom of the protective shell 1. After vertical adjustment of the pull rod 6, the top or bottom of the pull rod 6 can pass through the matching circular openings 8, allowing the end of the pull rod 6 to extend to the outside of the protective shell 1, which facilitates the subsequent assembly of two adjacent pull rods 6. During assembly, bolts are needed to lock and fix the connecting post head 61. Therefore, the bolt needs to be rotated and adjusted. A bolt adjustment hole 10 is drilled on the sleeve part 5 and on one side of the connecting post head 61. After the bolt is inserted into the circular slot at the bottom of the pull rod 6 through the bolt adjustment hole 10, a screwdriver can be inserted through the bolt adjustment hole 10 to rotate the bolt, which facilitates the locking and fixing of two adjacent pull rods 6. After the pull rod 6 is assembled, a rubber sealing plug is inserted into the bolt adjustment hole 10 to prevent sewage from entering the interior of the protective shell 1 through the bolt adjustment hole 10.

[0042] In this embodiment, the bottom of the protective shell 1 is first inserted into the water. Pulling the pull ring structure at the top of the pull rod 6 will cause the piston rod 72 to move upward. At this time, the rubber piston 71 moves upward, and then the sewage is drawn into the sampling cylinder 7 from the inlet pipe 4, which facilitates water sampling. After sampling, the protective shell 1 is removed from the water, the semi-circular sealing plate 3 is opened and the assembly port 11 is in an open state. At this time, the locking plate 32 is disengaged from the locking buckle 73, which releases the pressure limit on the sampling cylinder 7. Then, the staff takes the sampling cylinder 7 out of the protective shell 1 from the assembly port 11, which facilitates the collection of the obtained water sample. Using the sampling cylinder 7 as a sampling container, combined with the water source extraction method, the water sample can be stably stored inside the sampling cylinder 7, and the water sample can be effectively prevented from spilling when the sampling device is retrieved.

[0043] When sampling is required at different water depths, the length of the sampling device can be adjusted according to the water depth to ensure that the overall length of the sampling device can adapt to the water depth environment. Multiple protective shells 1 are assembled by inserting the connector 2 into the sleeve 5 and locking them together with bolts, ensuring that the multiple assembled protective shells 1 can be firmly connected as a whole. During this process, multiple pull rods 6 need to be assembled to ensure that the overall length of the assembled pull rods 6 matches the length of the sampling device. At this point, the connecting post 61 is inserted into the circular slot above it, and the bolt adjustment hole is used to... Ten mounting bolts pass through the pull rod 6 and enter the circular groove structure. After entering the groove structure, the bolts can be threaded into the internal threaded hole structure on the connecting column head 61, thus firmly locking two adjacent pull rods 6 into one, ensuring the robustness of the assembled pull rod 6 structure. Pulling the pull ring will drive multiple pull rods 6 to move upwards simultaneously, ensuring that multiple piston rods 72 can move upwards simultaneously. This allows multiple sampling cylinders 7 distributed in different water depth areas to simultaneously draw water quality samples, which not only improves the convenience of sampling operations but also meets the sampling needs of different water depth environments, effectively improving the applicability of the sampling device.

[0044] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A wastewater treatment sampling device at different depths, comprising a protective shell (1), a sampling cylinder (7) provided inside the protective shell (1), an inlet pipe (4) fixedly installed on the outer wall of the sampling cylinder (7), and a rubber piston (71) movably installed inside the sampling cylinder (7), characterized in that, It also includes: The plug-in part (2) is fixedly installed on the top of the protective shell (1). A sleeve part (5) is fixedly installed on the protective shell (1) at one end away from the plug-in part (2). The plug-in part (2) and the sleeve part (5) are used for assembling and splicing two adjacent protective shells (1). A pull rod (6) is movably mounted on the protective shell (1) and is used to pull the rubber piston (71) upward.

2. The wastewater treatment sampling device at different depths according to claim 1, characterized in that, A T-shaped connecting plate (62) is fixedly installed on the pull rod (6), and a positioning rod (63) is fixedly installed on the top of the T-shaped connecting plate (62). A piston rod (72) is fixedly installed on the rubber piston (71), and a pull plate (74) is fixedly installed on the top of the piston rod (72). The positioning rod (63) is inserted into the positioning hole drilled on the pull plate (74) and engaged with it.

3. The wastewater treatment sampling device at different depths according to claim 2, characterized in that, The inner wall of the protective shell (1) is chiseled with a groove (14). One end of the T-shaped connecting plate (62) is inserted into the groove (14) and slidably connected thereto. The bottom end of the pull rod (6) is provided with a circular slot. The top end of the pull rod (6) is fixedly installed with a connecting head (61). The connecting head (61) is inserted into the matching circular slot and fixed with bolts.

4. The wastewater treatment sampling device at different depths according to claim 1, characterized in that, The protective shell (1) has an assembly port (11) and a pressure port (12) cut out. The pressure port (12) is connected to the assembly port (11). The liquid inlet pipe (4) passes through the pressure port (12) and extends to the outside of the protective shell (1).

5. A wastewater treatment sampling device at different depths according to claim 4, characterized in that, A semi-circular sealing plate (3) is fixedly installed on the outer side wall of the protective shell (1). The semi-circular sealing plate (3) is located on the outside of the pressure inlet (12) and the assembly port (11). A semi-circular sealing gasket (31) is fixedly installed on the inner side wall of the semi-circular sealing plate (3). The inner side wall of the semi-circular sealing gasket (31) is in close contact with the outer side wall of the protective shell (1). One end of the liquid inlet pipe (4) passes through the semi-circular sealing gasket (31) and the semi-circular sealing plate (3) in sequence.

6. The wastewater treatment sampling device at different depths according to claim 5, characterized in that, The protective shell (1) is fixedly installed inside a limiting seat (13), and the bottom end of the sampling tube (7) is inserted into the groove at the top of the limiting seat (13) and engaged with it.

7. A wastewater treatment sampling device at different depths according to claim 6, characterized in that, A locking buckle (73) is fixedly installed on the outer wall of the sampling tube (7), and a locking insert (32) is fixedly installed on the inner wall of the semi-arc sealing plate (3). The locking insert (32) passes through the matching locking buckle (73) and engages with it.

8. A wastewater treatment sampling device at different depths according to claim 1, characterized in that, The protective shell (1) has a circular opening (8) at both the top and bottom. The two ends of the pull rod (6) that are far apart pass through the matching circular opening (8) and are movably connected to it. The plug part (2) and the sleeve part (5) have internal thread through holes (9). The sleeve part (5) has a bolt adjustment hole (10).

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