Safe sampling device for wastewater detection

Abstract

The utility model relates to the technical field of water quality sampling, and discloses a safety sampling device for wastewater detection, which comprises a sampling barrel and a floating ball, a detachable mounting cover is movably mounted on the sampling barrel, and a drain pipe communicated with the inside of the sampling barrel is mounted on the outer side close to the bottom of the sampling barrel. A mounting cover is arranged on the sampling barrel, a lifting rod capable of lifting and controlling the sampling barrel is arranged on the mounting cover, at least one group of liquid inlet holes are formed in the bottom of the sampling barrel, and liquid inlet covers matched with the liquid inlet holes are arranged on the liquid inlet holes. The ascending assembly is driven by buoyancy generated by the floating ball to ascend in the sampling barrel, so that the descending assembly drives a plurality of groups of telescopic rods and a bottom supporting plate on the protection assembly to descend and extend to form a conical frame, and external impurities and organisms can be effectively prevented from blocking a liquid inlet hole or entering the sampling barrel through the liquid inlet hole.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality sampling, and more specifically to a safe sampling device for wastewater detection. Background Art

[0002] In the field of wastewater testing, the quality of wastewater has a direct impact on the stability of the ecological environment and people's quality of life. In order to clearly and accurately grasp the status of the controlled wastewater, sampling and testing is a key link, and the sampling tube is a commonly used sampling tool.

[0003] However, the regional environment for wastewater sampling is complex and diverse. The complex environment formed by lakes, ponds and other water bodies after receiving a large amount of domestic sewage and industrial wastewater will bring many disadvantages to the sampling process. On the one hand, impurities in the water source, such as domestic garbage or stems and leaves of aquatic plants, can easily enter the sampling tube through the liquid inlet of the sampling tube. These impurities and organisms may mix with the sampled water source, change the composition of the water sample, and thus affect the subsequent test results. On the other hand, impurities and organisms may also block the liquid inlet, resulting in the sampling tube being unable to absorb enough water samples normally. Once this happens, it is easy to cause the problem of insufficient sampling samples, making the tested samples lack representativeness and unable to fully and accurately reflect the water source conditions of the water area. For this reason, we propose a safe sampling device for wastewater testing. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a safe sampling device for wastewater detection, thereby solving the problem of the safe sampling device for wastewater detection.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a safe sampling device for wastewater detection, including a sampling tube and a float, a detachable mounting cover is movably mounted on the sampling tube, a liquid discharge pipe connected to the inside of the sampling tube is mounted on the outer side near the bottom of the sampling tube, a lifting rod capable of lifting and controlling the sampling tube is mounted on the mounting cover, at least one group of liquid inlet holes is opened at the bottom of the sampling tube, a liquid inlet cover adapted to the liquid inlet hole is installed on the liquid inlet hole, a plurality of groups of auxiliary grooves are annularly opened on the inner side of the liquid inlet hole corresponding to the position of the liquid inlet cover, an elastic pull rope is arranged inside the auxiliary groove, and the elastic pull rope is arranged inside the auxiliary groove. One end of the pull rope is fixedly installed inside the auxiliary groove, and the other end of the elastic pull rope slides through the wall of the corresponding sampling cylinder in the auxiliary groove and is connected to the liquid inlet cover in the liquid inlet hole. The float is a ball that can float on the water surface. A tension line is installed on the float. The tension line slides away from one end of the float and penetrates the wall of the installation cover to extend to the interior of the sampling cylinder. An ascending component connected to the tension line is arranged inside the sampling cylinder, and a descending component that descends by the ascending of the ascending component is arranged inside the sampling cylinder. A protective component that opens in a cone shape by the descending of the descending component is arranged at the bottom of the sampling cylinder.

[0006] Preferably, the rising component includes a pressure plate and a pressure column, the pressure plate is arranged inside the sampling tube, the pressure plate and the tension line are connected to each other at one end away from the float, and the pressure column is divided into two groups, and the two groups of pressure columns are installed at both ends of the pressure plate away from the tension line.

[0007] Preferably, the descending assembly includes a fixed rod, an auxiliary column, an adjusting shaft, a movable adjusting slot and a fixed shaft, the auxiliary column is arranged between two groups of pressure columns, the auxiliary column slides through the bottom wall of the sampling cylinder and extends outside the sampling cylinder, the adjusting shaft is divided into two groups, and the two groups of adjusting shafts are respectively arranged on both sides of the auxiliary column, one end of the adjusting shaft corresponds to the top position of the side of the auxiliary column, and the other end of the adjusting shaft corresponds to the bottom position of the side wall of a group of pressure columns.

[0008] Preferably, there are two groups of fixed rods, which are respectively located in the middle position between the two groups of pressure columns and the auxiliary columns. The fixed rods slide through the adjustment shaft rods in the corresponding areas. Both ends of the fixed rods are fixed on the inner wall surface of the sampling tube. Fixed shafts are fixedly installed on both sides of the auxiliary columns corresponding to the positions of the adjustment shaft rods.

[0009] Preferably, the movable adjustment groove is respectively opened on the side of the adjustment shaft rod close to the pressure column and the auxiliary column. The movable adjustment groove is a rectangular slot with arc-shaped ends, and a fixed shaft is also installed at the position of the movable adjustment groove on the adjustment shaft rod corresponding to the pressure column. The fixed shafts on the pressure column and the auxiliary column are movably installed inside the movable adjustment groove.

[0010] Preferably, the protection assembly includes a telescopic rod, a bottom support plate, a telescopic slot and a bottom support slot, the bottom support slot is opened on the sampling tube corresponding to the position of the auxiliary column, the bottom support plate is arranged inside the bottom support slot, and the bottom support plate and the auxiliary column are connected to each other.

[0011] Preferably, a plurality of groups of telescopic rods that can be telescopically adjusted are arranged in a ring shape on the outer side of the bottom support plate, and the telescopic slots are opened on the sampling tube at positions corresponding to the telescopic rods. The two ends of the telescopic rods are respectively movable on the outer side of the bottom support plate and the inner side of the telescopic slots, and the two ends of the telescopic rods can respectively rotate on the bottom support plate and the telescopic slots.

[0012] Preferably, a deformable barrier ball is installed on the tension line, and the barrier ball is spherical.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, when the sampling tube enters the water, the water flow pressure squeezes the liquid cover so that the water flows into the interior of the sampling tube through the liquid inlet hole. At this time, the buoyancy generated by the float drives the rising component to rise inside the sampling tube, so that the descending component drives the multiple groups of telescopic rods and the bottom support plate on the protection component to descend and extend to form a cone-shaped frame, thereby effectively preventing external impurities from clogging the liquid inlet hole or entering the interior of the sampling tube through the liquid inlet hole.

[0015] 2. In the utility model, the barrier ball capable of deformation adjustment is used to effectively limit the rising range when the float drives the pressure plate and the pressure column to rise, thereby effectively protecting the relevant components inside the sampling tube and effectively improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model safety sampling device for wastewater detection;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the sampling tube of the utility model;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the bottom partial structure of the sampling tube of the utility model;

[0020] Figure 5 It is a partial structural schematic diagram of the protection component of the utility model;

[0021] Figure 6 It is a schematic diagram of the partial connection structure of the liquid inlet cover of the utility model.

[0022] Legend:

[0023] 1. Sampling tube; 2. Mounting cover; 3. Drain pipe; 4. Lifting rod; 5. Float; 6. Tension line; 7. Barrier ball; 8. Pressure plate; 9. Pressure column; 10. Fixed rod; 11. Liquid inlet cover; 12. Liquid inlet hole; 13. Telescopic rod; 14. Auxiliary column; 15. Adjustment shaft; 16. Movable adjustment slot; 17. Fixed shaft; 18. Bottom support plate; 19. Telescopic slot; 20. Bottom support slot; 21. Auxiliary slot; 22. Elastic pull rope. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0025] Figures 1 to 6 It is the best embodiment of the utility model, and the following Figures 1 to 6 The utility model is further described.

[0026] like Figure 1-Figure 6 As shown, a safe sampling device for wastewater detection includes a sampling tube 1 and a float 5. A detachable mounting cover 2 is movably mounted on the sampling tube 1. A drainage pipe 3 connected to the inside of the sampling tube 1 is mounted on the outer side near the bottom of the sampling tube 1. The drainage pipe 3 can be clamped closed by a clip clamped on a hose. A lifting rod 4 capable of lifting and controlling the sampling tube 1 is mounted on the mounting cover 2.

[0027] Furthermore, at least one group of liquid inlet holes 12 are provided at the bottom of the sampling tube 1, and a liquid inlet cover 11 adapted to the liquid inlet hole 12 is installed on the liquid inlet hole 12. A plurality of auxiliary grooves 21 are provided in a ring shape on the inner side of the liquid inlet hole 12 corresponding to the position of the liquid inlet cover 11. An elastic pull rope 22 capable of elastically stretching and deforming is provided inside the auxiliary groove 21. One end of the elastic pull rope 22 is fixedly installed inside the auxiliary groove 21, and the other end of the elastic pull rope 22 slides through the wall surface of the sampling tube 1 corresponding to the auxiliary groove 21 and then is connected to the liquid inlet cover 11 inside the liquid inlet hole 12.

[0028] In this embodiment, when the sampling tube 1 gradually descends in the water, the pressure of the water flow will squeeze the liquid inlet cover 11, causing the liquid inlet cover 11 to separate from the liquid inlet hole 12, thereby allowing the water flow in the detection area to enter the interior of the sampling tube 1 through the liquid inlet hole 12. When the sampling tube 1 moves out of the detection water source area, the internal water flow generates downward pressure when the sampling tube 1 rises and the elastic pull rope 22 is limited, so that the liquid inlet cover 11 is reset and the liquid inlet hole 12 is closed.

[0029] Furthermore, the float 5 is a ball that can float on the water surface. A tension line 6 is installed on the float 5. The tension line 6 slides away from one end of the float 5 and penetrates the wall of the installation cover 2 to extend to the inside of the sampling tube 1.

[0030] Furthermore, a rising component interconnected with the tension line 6 is provided inside the sampling tube 1 .

[0031] In this embodiment, the lifting component is relatively lifted up inside the sampling tube 1 by the buoyancy generated by the float 5 on the water surface and the descent of the sampling tube 1 in the water.

[0032] Furthermore, a descending component is provided inside the sampling tube 1 and is descended by the ascending of the ascending component.

[0033] Furthermore, a protection component is provided at the bottom of the sampling tube 1, which is opened in a cone shape by the descent of the descending component.

[0034] Furthermore, the rising component includes a pressure plate 8 and a pressure column 9. The pressure plate 8 is arranged inside the sampling tube 1. The pressure plate 8 and the tension line 6 are connected to each other at one end away from the float 5. The pressure column 9 is divided into two groups. The two groups of pressure columns 9 are installed at both ends of the pressure plate 8 away from the tension line 6. The buoyancy of the float 5 is greater than the gravity of the pressure plate 8 and the pressure column 9.

[0035] In this embodiment, when the sampling tube 1 enters the water and is weighed, the buoyancy of the float 5 can drive the pressure plate 8 and the pressure column 9 to rise relatively inside the sampling tube 1. When the sampling tube 1 is lifted upward in the water, the pressure plate 8 and the pressure column 9 gradually descend inside the sampling tube 1 due to their own gravity until the bottom of the pressure column 9 contacts the inner bottom of the sampling tube 1.

[0036] Furthermore, the descending assembly includes a fixed rod 10, an auxiliary column 14, an adjusting shaft 15, a movable adjusting groove 16 and a fixed shaft 17. The auxiliary column 14 is arranged between two groups of pressure columns 9. The auxiliary column 14 slides through the bottom wall of the sampling tube 1 and extends outside the sampling tube 1. There are two groups of adjusting shafts 15, and the two groups of adjusting shafts 15 are respectively arranged on both sides of the auxiliary column 14. One end of the adjusting shaft 15 corresponds to the top position of the side of the auxiliary column 14, and the other end of the adjusting shaft 15 corresponds to the bottom position of the side wall of a group of pressure columns 9.

[0037] Furthermore, there are two groups of fixing rods 10, which are respectively located at the middle position between the two groups of pressure columns 9 and the auxiliary columns 14. The fixing rods 10 slide through the adjustment shafts 15 in the corresponding areas, and both ends of the fixing rods 10 are fixed on the inner wall surface of the sampling tube 1.

[0038] In this embodiment, the fixing rod 10 is used as a rotation fulcrum so that the adjusting shaft rod 15 can be rotationally adjusted inside the sampling tube 1 .

[0039] Furthermore, fixed shafts 17 are fixedly installed on both sides of the auxiliary column 14 corresponding to the positions of the adjustment shaft rod 15 .

[0040] Furthermore, the movable adjustment groove 16 is respectively opened on the side of the adjustment shaft 15 close to the pressure column 9 and the auxiliary column 14. The movable adjustment groove 16 is a rectangular slot with arc-shaped ends, and the pressure column 9 is also equipped with a fixed shaft 17 at the position of the movable adjustment groove 16 on the adjustment shaft 15 corresponding to the pressure column 9. The fixed shafts 17 on the pressure column 9 and the auxiliary column 14 are both movably installed inside the movable adjustment groove 16.

[0041] In this embodiment, the movable adjustment slot 16 allows the fixed shaft 17 to be free from the influence of the rotation radius limit when the pressure column 9 is ascending, thereby driving the adjustment shaft rod 15 to perform effective rotation adjustment around the fixed rod 10 as the axis.

[0042] Furthermore, the protection assembly includes a telescopic rod 13, a bottom support plate 18, a telescopic slot 19 and a bottom support slot 20. The bottom support slot 20 is opened on the sampling tube 1 at a position corresponding to the auxiliary column 14. The bottom support plate 18 is arranged inside the bottom support slot 20. The bottom support plate 18 and the auxiliary column 14 are connected to each other.

[0043] In this embodiment, the lowering assembly can effectively drive the bottom support plate 18 to rise or fall at the bottom of the sampling tube 1 .

[0044] Furthermore, a plurality of groups of telescopic rods 13 that can be telescopically adjusted are arranged in a ring shape on the outer side of the bottom support plate 18. The telescopic rods 13 can be arranged in multiple groups, and the number of the telescopic rods 13 is not less than four groups. The telescopic slots 19 are opened at positions corresponding to the telescopic rods 13 on the sampling tube 1. The two ends of the telescopic rods 13 are respectively movable on the outer side of the bottom support plate 18 and the inner side of the telescopic slots 19. The two ends of the telescopic rods 13 can respectively rotate on the bottom support plate 18 and the telescopic slots 19.

[0045] In this embodiment, the bottom support plate 18 descends, so that the bottom support plate 18 can drive one end of multiple groups of telescopic rods 13 close to the bottom support plate 18 to extend downward, and at the same time the other end is limited in the telescopic slot 19, so that the multiple groups of telescopic rods 13 and the bottom support plate 18 form a cone-shaped frame, which can effectively prevent external impurities from clogging the liquid inlet hole 12 or entering the interior of the sampling tube 1 through the liquid inlet hole 12 during sampling.

[0046] Furthermore, a deformable barrier ball 7 is installed on the tension line 6, and the barrier ball 7 is spherical.

[0047] In this embodiment, the barrier ball 7 can move to a position that fits the mounting cover 2 through the buoyancy generated by the float 5 and the sinking of the sampling tube 1 on the tension line 6, so that the lifting component can be limited after being lifted to a certain position.

[0048] The working principle and use process of the utility model are as follows: when in use, the device is installed on a controllable moving device through the lifting rod 4, such as a drone or a handheld joystick, and the sampling tube 1 is driven by the device to move to a designated water area. When the sampling tube 1 enters the water, as the sampling tube 1 gradually descends, the water flow pressure will squeeze the liquid cover 11 so that the water flows into the interior of the sampling tube 1 through the liquid inlet hole 12. At this time, the buoyancy generated by the float 5 drives the rising component to rise inside the sampling tube 1, so that the descending component drives the multiple groups of telescopic rods 13 and the bottom support plate 18 on the protective component to descend and extend to form a cone-shaped frame, thereby effectively preventing external impurities and organisms from clogging the liquid inlet hole 12 or entering the interior of the sampling tube 1 through the liquid inlet hole 12.

[0049] Through the barrier ball 7 capable of deformation adjustment, the float 5 can effectively limit the rising range when driving the pressure plate 8 and the pressure column 9 to rise, thereby effectively protecting the relevant components inside the sampling tube 1 and effectively improving the service life of the device.

[0050] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A safe sampling device for wastewater detection, comprising a sampling tube (1) and a floating ball (5), wherein a detachable mounting cover (2) is movably mounted on the sampling tube (1), a liquid discharge pipe (3) connected to the inside of the sampling tube (1) is mounted on the outer side near the bottom of the sampling tube (1), a lifting rod (4) capable of lifting and controlling the sampling tube (1) is mounted on the mounting cover (2), at least one group of liquid inlet holes (12) is opened at the bottom of the sampling tube (1), and a liquid inlet cover (11) adapted to the liquid inlet hole (12) is mounted on the liquid inlet hole (12), characterized in that: A plurality of auxiliary grooves (21) are provided in a ring shape on the inner side of the liquid inlet hole (12) corresponding to the position of the liquid inlet cover (11). An elastic pull rope (22) is provided inside the auxiliary groove (21). One end of the elastic pull rope (22) is fixedly installed inside the auxiliary groove (21). The other end of the elastic pull rope (22) slides through the wall surface of the corresponding sampling tube (1) in the auxiliary groove (21) and is connected to the liquid inlet cover (11) in the liquid inlet hole (12). The float (5) is capable of floating on the water surface. A ball is provided on the float (5), a tension line (6) is installed on the float (5), and the tension line (6) slides through the wall of the installation cover (2) at one end away from the float (5) and extends to the interior of the sampling tube (1), and an ascending component connected to the tension line (6) is provided inside the sampling tube (1), and a descending component is provided inside the sampling tube (1) that descends by the ascending of the ascending component, and a protective component is provided at the bottom of the sampling tube (1) that opens in a cone shape by the descending of the descending component.

2. A safe sampling device for wastewater detection according to claim 1, characterized in that: The lifting assembly comprises a pressure plate (8) and a pressure column (9), wherein the pressure plate (8) is arranged inside the sampling tube (1), the pressure plate (8) and the end of the tension line (6) away from the float (5) are connected to each other, and the pressure column (9) is divided into two groups, and the two groups of pressure columns (9) are installed at both ends of the side of the pressure plate (8) away from the tension line (6).

3. A safe sampling device for wastewater detection according to claim 2, characterized in that: The descending assembly comprises a fixed rod (10), an auxiliary column (14), an adjusting shaft rod (15), a movable adjusting groove (16) and a fixed shaft (17); the auxiliary column (14) is arranged between two groups of pressure columns (9); the auxiliary column (14) slides through the bottom wall of the sampling tube (1) and extends outside the sampling tube (1); the adjusting shaft rod (15) is in two groups, and the two groups of adjusting shaft rods (15) are respectively arranged on both sides of the auxiliary column (14); one end of the adjusting shaft rod (15) corresponds to the top position of the side edge of the auxiliary column (14), and the other end of the adjusting shaft rod (15) corresponds to the bottom position of the side wall of one group of pressure columns (9).

4. A safe sampling device for wastewater detection according to claim 3, characterized in that: The fixing rods (10) are divided into two groups. The two groups of fixing rods (10) are respectively located at the middle position between the two groups of pressure columns (9) and the auxiliary columns (14). The fixing rods (10) slide through the adjustment shaft rods (15) in the corresponding areas. Both ends of the fixing rods (10) are fixed to the inner wall surface of the sampling tube (1). Fixed shafts (17) are fixedly installed on both sides of the auxiliary columns (14) at the positions corresponding to the adjustment shaft rods (15).

5. A safe sampling device for wastewater detection according to claim 4, characterized in that: The movable adjustment groove (16) is respectively provided on one side of the adjustment shaft (15) close to the pressure column (9) and the auxiliary column (14); the movable adjustment groove (16) is a rectangular slot with arc-shaped ends; and a fixed shaft (17) is also installed at the position of the movable adjustment groove (16) on the pressure column (9) corresponding to the adjustment shaft (15); the fixed shafts (17) on the pressure column (9) and the auxiliary column (14) are both movably installed inside the movable adjustment groove (16).

6. A safe sampling device for wastewater detection according to claim 5, characterized in that: The protection assembly comprises a telescopic rod (13), a bottom support plate (18), a telescopic slot (19) and a bottom support slot (20); the bottom support slot (20) is provided on the sampling tube (1) at a position corresponding to the auxiliary column (14); the bottom support plate (18) is arranged inside the bottom support slot (20); and the bottom support plate (18) and the auxiliary column (14) are connected to each other.

7. A safe sampling device for wastewater detection according to claim 6, characterized in that: A plurality of groups of telescopic rods (13) capable of being telescopically adjusted are arranged in an annular shape on the outer side of the bottom support plate (18); the telescopic slots (19) are provided on the sampling tube (1) at positions corresponding to the telescopic rods (13); two ends of the telescopic rods (13) are movable on the outer side of the bottom support plate (18) and the inner side of the telescopic slots (19); and the two ends of the telescopic rods (13) are capable of rotating on the bottom support plate (18) and the telescopic slots (19).

8. A safe sampling device for wastewater detection according to claim 1, characterized in that: A deformable blocking ball (7) is mounted on the tension line (6), and the blocking ball (7) is spherical.

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