Sampling device for water quality detection in water conservancy

Abstract

The utility model relates to the technical field of water conservancy sampling, and discloses a sampling device for water conservancy water quality detection, which comprises a fixed rod which is vertically arranged, two ends of the fixed rod are respectively and fixedly connected with a bottom plate and a fixed plate, and the side wall of the fixed rod is slidably connected with a movable disc; a water outlet pipe connected with the water pump penetrates through the fixed plate and is communicated with one end of a flow guide hose, the other end of the flow guide hose penetrates through the movable disc, a water inlet pipe connected with the flow guide hose is communicated with the sampling head, and a balancing weight is arranged at one end, close to the sampling head, of the water inlet pipe; the telescopic assembly is arranged at the upper end of the fixing plate in the horizontal direction, the telescopic end of the telescopic assembly is slidably connected with one end of the water inlet pipe, and the balancing weight is located below the telescopic end; the placing disc is rotationally connected with the fixing rod, and a plurality of placing holes for placing sample tubes are formed in the upper end of the placing disc; and the limiting assembly is arranged on the fixing rod. According to the utility model, the sampling distance can be flexibly adjusted in the horizontal direction.

Description

Technical Field

[0001] This utility model relates to the field of water sampling technology, and in particular to a sampling device for water quality testing. Background Technology

[0002] With the rapid development of society and economy, the rational utilization and protection of water resources has become increasingly critical. As a fundamental link in water resource management, water quality testing is directly related to the scientific nature of subsequent decisions on water pollution control, ecological environment maintenance, and other matters. Water quality sampling is the first step in the testing work, and the quality of the sampling device plays a decisive role.

[0003] Patent CN222671490U discloses a water quality monitoring sampling device. In use, the sample tube is placed inside the placement tray. The limiting plate is slid, and when the lower magnetic block magnetically connects with the second magnetic ring, the two connecting tubes are aligned with the sample tube below. A motor is started, driving the winding drum to rotate and adjust the length of the second flexible tube. The sampling head is then placed into the water to be sampled. Under the action of the counterweight, the sampling head sinks. After reaching the designated position, the water pump is started to sample the water. The water flows sequentially through the second flexible tube, the inlet tube, the diversion box, the inlet pipe, the first flexible tube, and the connecting tube to enter the sample tube for sampling. When sampling at another location is required, the limiting plate is slid upwards, causing the upper magnetic block to adsorb and connect with the first magnetic ring. At this time, the limiting plate is restricted. The placement tray is then rotated to adjust the position of other sample tubes below the connecting tubes. The above operation is repeated for sampling at other locations. However, the above-mentioned device has the following drawbacks in use: the sampling head can only move vertically in a fixed position of the sampling component. In actual sampling, if it is necessary to compare and monitor multiple points at different distances in the horizontal direction at the same depth, it can only be achieved by moving the entire device. This movement operation is both time-consuming and laborious, making it difficult to meet the needs of efficient and convenient water quality testing. In addition, if the distance between the sampling point and the device placement location is too great, and the device cannot be moved closer to the sampling point due to limitations, this will seriously hinder the normal progress of water quality sampling.

[0004] Therefore, how to enable the device to flexibly adjust the sampling distance in the horizontal direction has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The present invention aims to provide a sampling device for water quality testing in water conservancy, so as to overcome the above-mentioned shortcomings.

[0006] To achieve the above objectives, the technical solution of this utility model is: a sampling device for water quality testing, comprising:

[0007] A fixed rod is arranged vertically, with its two ends fixedly connected to the base plate and the fixed plate respectively, and a movable disc is slidably connected to its side wall;

[0008] A water pump, whose outlet pipe is connected to one end of the fixed plate and the guide hose, and the other end of the guide hose is connected to the movable plate, whose inlet pipe is connected to the sampling head, and a counterweight is provided at the end of the inlet pipe near the sampling head;

[0009] A telescopic assembly is arranged horizontally on the upper end of the fixed plate, with its telescopic end slidably connected to one end of the water inlet pipe, and the counterweight is located below the telescopic end.

[0010] A placement tray, rotatably connected to a fixing rod, has several placement holes for sample tubes at its upper end; and

[0011] A limiting component, which is arranged on the fixed rod, is used to limit the movable disk from approaching and moving away from the sample tube, thereby causing the other end of the flow guide hose to extend into and out of the sample tube.

[0012] Furthermore, the telescopic assembly includes a telescopic rod and an end plate. The telescopic rod is arranged horizontally on the upper end of the fixed plate. The telescopic end of the telescopic rod is fixedly connected to the end plate. The end plate is slidably connected to one end of the water inlet pipe. Each section of the telescopic rod is provided with several through holes. The upper end of the fixed plate is provided with a fixing hole. A fixing pin passes through the through hole and connects the fixing hole.

[0013] Furthermore, a diversion bucket is detachably connected to the upper end of the fixed plate, and a plurality of diversion pipes are provided at the lower end of the diversion bucket. The plurality of diversion pipes are inserted through the fixed plate one by one, and the diversion pipes are detachably connected to the flow guiding hose one by one. The water outlet pipe connected to the water pump is connected to the diversion bucket.

[0014] Furthermore, a fixing sleeve is provided at the upper end of the fixing plate, the fixing sleeve is fitted around the periphery of the diversion bucket, a bucket lid is detachably connected to the upper end of the diversion bucket, and the water outlet pipe connected to the water pump and the water inlet pipe at the upper end of the bucket lid are detachably connected.

[0015] Furthermore, the other end of the flow guiding hose is detachably inserted through the movable disc, and a positioning plate is provided at the other end of the flow guiding hose. A positioning protrusion is provided on the side wall of the positioning plate. An insertion groove is provided at the lower end of the movable disc, and a positioning groove is provided inside the movable disc. The insertion groove and the positioning groove are connected. The positioning protrusion and the insertion groove are adapted to each other, and the positioning protrusion and the positioning groove are slidably connected.

[0016] Furthermore, the longitudinal cross-sections of both the positioning protrusion and the positioning groove are trapezoidal.

[0017] Furthermore, two limiting components are arranged opposite to each other on the fixed rod, and the two limiting components are located on both sides of the movable disk. The limiting component includes a protective plate and a first magnetic ring. The protective plate and the fixed rod are fixedly connected. The first magnetic ring is provided inside the protective plate, and the second magnetic ring is provided inside the movable disk.

[0018] Furthermore, the upper end of the fixing plate is provided with a take-up drum with a support, the water inlet pipe is wound around the surface of the take-up drum and communicates with the sampling head, and a motor is provided on the side wall of the support. The output shaft of the motor rotates through the support and is connected to the take-up drum for transmission.

[0019] Furthermore, the inner wall of the movable disc is provided with a limiting protrusion, and the side wall of the fixed rod is provided with a limiting groove, and the limiting protrusion and the limiting groove are slidably connected.

[0020] Compared with the prior art, this utility model has at least the following advantages: In use, the device must first be placed near the sampling point. The water pump serves as the sampling power source, and its outlet pipe, after passing through the fixed plate, is connected to one end of the guide hose. A counterweight is provided at the end of the inlet pipe near the sampling head to ensure that the sampling head can sink to the predetermined depth. Simultaneously, the inlet pipe is connected to the sampling head for water sample collection. Since the telescopic component is horizontally mounted on the upper part of the fixed plate, and its telescopic end is slidably connected to one end of the inlet pipe, the telescopic component plays a crucial role when sampling multiple points at different horizontal distances at the same depth is required. By extending and retracting its end, it drives the connected inlet pipe and sampling head to move horizontally. Without moving the entire device, the horizontal position of the sampling head can be flexibly changed, easily achieving water sample collection from points at different horizontal distances at the same depth, greatly improving sampling efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the sampling device for water quality testing according to this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the sampling device for water quality testing according to this utility model from another angle;

[0024] Figure 3 This is a cross-sectional view of the sampling device for water quality testing according to this utility model;

[0025] Figure 4 This is a cross-sectional view of the movable disc and the flow guiding hose of this utility model;

[0026] Figure 5 This is a schematic diagram of the flow guiding hose and positioning plate of this utility model.

[0027] Reference numerals: 1. Base plate; 2. Fixing rod; 3. Fixing plate; 4. Movable disc; 5. Water pump; 6. Water outlet pipe; 7. Flow guide hose; 8. Water inlet pipe; 9. Sampling head; 10. Counterweight; 11. Placement disc; 12. Sample tube; 13. Placement hole; 14. Telescopic rod; 15. End plate; 16. Fixing pin; 17. Diverter bucket; 18. Diverter pipe; 19. Fixing sleeve; 20. Bucket lid; 21. Positioning plate; 22. Positioning protrusion; 23. Insertion groove; 24. Positioning groove; 25. Protective plate; 26. First magnetic ring; 27. Second magnetic ring; 28. Rewind drum; 29. ​​Motor; 30. Limiting protrusion; 31. Limiting groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figure 1-3This utility model provides a sampling device for water quality testing, including a fixed rod 2 arranged vertically, with its two ends fixedly connected to a base plate 1 and a fixed plate 3 respectively. A movable disc 4 is slidably connected to its side wall, and the lower end of the movable disc 4 and the upper end of the base plate 1 are rotatably connected by a bearing. A water pump 5 serves as the power component for water sample extraction. Its outlet pipe 6 passes through the fixed plate 3 and is connected to one end of a guide hose 7. Its inlet pipe 8 is connected to a sampling head 9 with a filtration function. The other end of the guide hose 7 passes through the movable disc 4 to guide the water sample to the subsequent collection point. A counterweight 10 is provided at the end of the inlet pipe 8 near the sampling head 9. The connection between the water pump 5 and the outlet pipe 6, and the connection between the water pump 5 and the inlet pipe 8, are detachably connected by clamps. This detachable connection design greatly facilitates the assembly, maintenance, and replacement of the device. The sampling device includes a replacement and cleaning component; a telescopic assembly arranged horizontally on the upper end of the fixed plate 3, with its telescopic end slidably connected to one end of the water inlet pipe 8, and a counterweight 10 located below the telescopic end. The telescopic assembly is used to adjust the horizontal extension distance of the sampling head 9 to adapt to the sampling requirements of different positions; a placement tray 11 serving as the collection point, which is rotatably connected to the fixed rod 2, and has several placement holes 13 for placing sample tubes 12 at its upper end. During the sampling process, when the water sample is transmitted through the guide hose 7, it can flow directly into the corresponding sample tube 12. After each sampling is completed, the placement tray 11 is rotated to start the sampling work at the next collection point; and a limiting component arranged on the fixed rod 2, which is used to limit the movement of the movable tray 4 from approaching and moving away from the sample tube 12, thereby driving the other end of the guide hose 7 to extend into and out of the sample tube 12.

[0031] The telescopic assembly includes a telescopic rod 14 and an end plate 15. The telescopic rod 14 is arranged horizontally on the upper end of the fixed plate 3. The telescopic end of the telescopic rod 14 is fixedly connected to the end plate 15, and the end plate 15 is slidably connected to one end of the water inlet pipe 8. Specifically, the telescopic rod 14 is a multi-stage telescopic rod. To ensure the stability of the extension length of the telescopic rod 14 during sampling, each section of the telescopic rod 14 is provided with several through holes. The upper end of the fixed plate 3 is provided with a fixing hole. When it is necessary to fix the extension position of the telescopic rod 14, the operator can connect the fixing pin 16 through the appropriate through hole to the fixing hole (the through hole and the fixing hole are not shown in the figure). In use, the operator can adjust the extension distance of the telescopic rod 14 by manually pulling it. If the sampling head 9 still cannot reach the sampling point after the first section of the rod is fully extended, the operator can manually pull the second section of the rod. At this time, the first and second sections of the rod are fixed by the fixing pin 16. This operation is repeated until the sampling head 9 reaches the sampling point.

[0032] Reference Figure 3The upper end of the fixed plate 3 is detachably connected to a diversion tank 17. The lower end of the diversion tank 17 is provided with two diversion tubes 18 (the number of diversion tubes 18 is not limited to this and can be flexibly adjusted to three or more according to actual sampling needs). The two diversion tubes 18 are inserted one by one through the fixed plate 3, and the diversion tubes 18 and the flow guiding hoses 7 are connected in a detachable manner. The water outlet pipe 6 connected to the water pump 5 is connected to the diversion tank 17. When the water sample is drawn from the water pump 5 and enters the diversion tank 17 through the water outlet pipe 6, the sample is guided to different flow guiding hoses 7 through the diversion tubes 18, thereby achieving the purpose of simultaneous collection of multiple samples. In this way, it is convenient to conduct comparative experiments and can greatly improve the sampling efficiency and effectively ensure the accuracy of experimental data.

[0033] A fixing sleeve 19 is provided at the upper end of the fixing plate 3. The fixing sleeve 19 is fitted around the periphery of the diversion tank 17. The fixing sleeve 19 provides reliable lateral support for the diversion tank 17. The upper end of the diversion tank 17 is detachably connected to the tank cover 20. The water outlet pipe 6 connected to the water pump 5 and the water inlet pipe at the upper end of the tank cover 20 are also detachably connected by a clamp. This provides convenience for cleaning, maintenance and component replacement of the diversion tank 17.

[0034] Reference Figure 4-5 The other end of the flow guiding hose 7 is detachably inserted through the movable disc 4. The other end of the flow guiding hose 7 is provided with a positioning plate 21. The side wall of the positioning plate 21 is provided with a positioning protrusion 22. The lower end of the movable disc 4 is provided with an insertion groove 23. The movable disc 4 is provided with a positioning groove 24. The insertion groove 23 and the positioning groove 24 are connected. The positioning protrusion 22 and the insertion groove 23 are matched and the positioning protrusion 22 and the positioning groove 24 are slidably connected. During installation, the positioning plate 21 and the positioning protrusion 22 are first inserted into the insertion groove 23, and then rotated 90 degrees. The positioning protrusion 22 slides into the positioning groove 24 along the insertion groove 23.

[0035] The longitudinal cross-sections of the positioning protrusion 22 and the positioning groove 24 are both trapezoidal. This special shape not only ensures the tightness of the connection, but also effectively prevents the flow guide hose 7 from accidentally detaching from the movable disc 4 during the sampling process.

[0036] Reference Figure 3Two limiting components are arranged opposite each other on the fixed rod 2, and the two limiting components are located on both sides of the movable disk 4. The limiting components include a protective plate 25 and a first magnetic ring 26. The protective plate 25 and the fixed rod 2 are fixedly connected. The first magnetic ring 26 is arranged inside the protective plate 25, and a second magnetic ring 27 is arranged inside the movable disk 4. The lower magnetic pole of the first magnetic ring 26 above the movable disk 4 and the upper magnetic pole of the second magnetic ring 27 are opposite magnetic poles. The upper magnetic pole of the first magnetic ring 26 below the movable disk 4 and the lower magnetic pole of the second magnetic ring 27 are opposite magnetic poles. When it is necessary to move the movable disk 4 closer to the sample tube, When the direction of 12 moves downward, a downward pushing force is applied to the movable disk 4, causing it to move downward. Then, using the principle of opposite poles attracting each other, the second magnetic ring 27 and the first magnetic ring 26 attract and connect with each other. Conversely, when it is necessary to move the movable disk 4 upward in a direction away from the sample tube 12, an upward pulling force is applied to the movable disk 4, causing it to move upward. Then, using the principle of opposite poles attracting each other, the second magnetic ring 27 and the first magnetic ring 26 attract and connect with each other. With the help of the attraction between the magnetic poles, the other end of the guide tube 7 is driven to accurately extend into and out of the sample tube 12, so as to collect the water sample.

[0037] Reference Figure 1 The upper end of the fixed plate 3 is provided with a take-up drum 28 with a support. The water inlet pipe 8 is wound around the surface of the take-up drum 28 and is connected to the sampling head 9. The side wall of the support is provided with a motor 29. The output shaft of the motor 29 rotates through the support and is connected to the take-up drum 28. The motor 29 drives the take-up drum 28 to rotate, so that the sampling head 9 reaches the sampling position. After sampling, the motor 29 reverses and neatly winds the water inlet pipe 8 back onto the take-up drum 28, so as to avoid the water inlet pipe 8 being messy and affecting the next sampling, and at the same time saves the storage space of the device.

[0038] Reference Figure 3 The inner wall of the movable plate 4 is provided with a limiting protrusion 30, and the side wall of the fixed rod 2 is provided with a limiting groove 31. The limiting protrusion 30 and the limiting groove 31 are slidably connected.

[0039] The working principle of this utility model is as follows: When in use, the device is placed near the sampling point. Based on the horizontal distance from the placement point to the sampling point, the motor 29 is started. At the same time, the staff manually pulls the telescopic rod 14 until the sampling head 9 reaches above the sampling point. During this period, the staff holds the water inlet pipe 8 to prevent the sampling head 9 from sinking under the action of the counterweight 10. After that, the water inlet pipe 8 is released. After reaching the designated position under the action of the counterweight 10, the water pump 5 is started to sample the water quality. Under the action of the water pump 5, the water sample is drawn from the sampling head 9 through the water inlet pipe 8, and then enters the diversion tank 17 through the water outlet pipe 6 connected to the water inlet pipe 8. The water sample entering the diversion tank 17 will be guided to different guide hoses 7 through the diversion pipe 18.

[0040] A downward thrust is applied to the movable disc 4, causing it to move downwards, which in turn drives the other end of the guide hose 7 to accurately extend into the sample tube 12, thus completing the water sample collection.

[0041] When sampling is required at another location, the staff applies an upward pulling force to the movable plate 4, causing the movable plate 4 to move upward, thereby driving the other end of the guide hose 7 to accurately extend out of the sample tube 12. The placement plate 11 is rotated to adjust the position of other sample tubes 12 to below the guide hose 7. The above operation is repeated to sample at other locations. During this period, the water pump 5 is turned off.

[0042] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A sampling device for water quality detection, characterized in that, The utility model relates to a kind of water sampling device, including: Fixed rod (2), it is arranged along vertical, its both ends are fixedly connected with bottom plate (1) and fixed plate (3) respectively, its side wall slidingly connected with movable disc (4); Water pump (5), its connected water outlet pipe (6) penetrates the fixed plate (3) and the one end of flow guide hose (7) communication, the other end of flow guide hose (7) penetrates movable disc (4), its connected water inlet pipe (8) and sampling head (9) communication, water inlet pipe (8) is close to the one end of sampling head (9) and is provided with counterweight (10); Telescopic component, it is arranged along horizontal direction in the upper end of fixed plate (3), and the one end of telescopic end and water inlet pipe (8) slidingly connected, and counterweight (10) is located below telescopic end; Placing disc (11), it is rotatably connected with fixed rod (2), and its upper end is provided with a plurality of placing holes (13) for placing sample tube (12);And Limiting component, it is arranged on fixed rod (2), it is used for limiting movable disc (4) close to and away from sample tube (12), to drive the other end of flow guide hose (7) into and out of sample tube (12).

2. The sampling device for water quality detection according to claim 1, characterized in that, The telescopic component includes telescopic rod (14) and end plate (15), the telescopic rod (14) is arranged along horizontal direction in the upper end of fixed plate (3), the telescopic end of telescopic rod (14) and end plate (15) fixedly connected, the end plate (15) and one end of water inlet pipe (8) slidingly connected, and the section bar of telescopic rod (14) is all provided with a plurality of through holes, the upper end of fixed plate (3) is provided with fixed hole, fixed pin (16) penetrates the through hole and fixed hole connection.

3. The sampling device for water quality detection according to claim 1, characterized in that, The upper end of fixed plate (3) is detachably connected with shunt barrel (17), the lower end of shunt barrel (17) is provided with a plurality of shunt pipes (18), a plurality of shunt pipes (18) are inserted and connected one by one and penetrate fixed plate (3), and the shunt pipe (18) is detachably connected with the flow guide hose (7) one by one, and the water outlet pipe (6) connected with water pump (5) and shunt barrel (17) are communicated.

4. The sampling device for water quality detection according to claim 3, characterized in that, The upper end of fixed plate (3) is provided with fixed sleeve (19), the fixed sleeve (19) is sleeved on the circumferential side of shunt barrel (17), the upper end of shunt barrel (17) is detachably connected with barrel cover (20), and the water inlet pipe detachably connected with the upper end of barrel cover (20) is connected with the water outlet pipe (6) connected with water pump (5).

5. The sampling device for water quality detection according to claim 3, characterized in that, The other end of flow guide hose (7) is detachably penetrated movable disc (4), the other end of flow guide hose (7) is provided with positioning plate (21), the side wall of positioning plate (21) is provided with positioning protrusion (22), the lower end of movable disc (4) is provided with insertion slot (23), the inside of movable disc (4) is provided with positioning groove (24), the insertion slot (23) and positioning groove (24) are communicated, the positioning protrusion (22) and insertion slot (23) are matched, and the positioning protrusion (22) and positioning groove (24) slidingly connected.

6. The sampling device for water quality detection according to claim 5, characterized in that, The longitudinal section of positioning protrusion (22) and positioning groove (24) is trapezoidal.

7. The sampling device for water quality detection of water conservancy according to claim 1, characterized in that, Two limiting assemblies are oppositely arranged on the fixed rod (2), and the two limiting assemblies are located on two sides of the movable disc (4), the limiting assembly comprises a protection plate (25) and a first magnetic ring (26), the protection plate (25) is fixedly connected with the fixed rod (2), the first magnetic ring (26) is arranged in the protection plate (25), and the movable disc (4) is provided with a second magnetic ring (27).

8. The sampling device for water quality detection of water conservancy according to claim 2, characterized in that, The upper end of the fixed plate (3) is provided with a winding drum (28) with a support, the water inlet pipe (8) is wound on the surface of the winding drum (28) and communicates with the sampling head (9), the side wall of the support is provided with a motor (29), and the output shaft of the motor (29) is rotatably connected with the winding drum (28) through the support.

9. The sampling device for water quality detection according to any one of claims 1 to 8, characterized in that, The inner wall of the movable disc (4) is provided with a limiting protrusion (30), the side wall of the fixed rod (2) is provided with a limiting groove (31), and the limiting protrusion (30) and the limiting groove (31) are in sliding connection.

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