Water source multi-level sampling monitoring device

Abstract

This utility model provides a multi-level water source sampling and monitoring device, relating to the field of sampling technology. It includes several fixed rods, each with a storage slot inside. Sampling bottles are respectively fitted into the storage slots, and sealing mechanisms are installed at the top of each sampling bottle. Connecting frames are installed on the upper and lower sides of each fixed rod. Connecting ropes are attached to connecting frames that are close together and to connecting frames that are far apart. In this utility model, the user can freely select the number of fixed rods and sampling bottles according to actual sampling needs and assemble them using connecting ropes of specified lengths. This allows for flexible sampling of water bodies of different sizes and depths. This modular design not only reduces operational complexity but also avoids the problem of traditional sampling devices being difficult to adapt to diverse sampling scenarios due to their fixed structure, significantly improving sampling efficiency and operational convenience.

Description

Technical Field

[0001] This utility model relates to the field of sampling technology, and more specifically, to a multi-level sampling and monitoring device for water sources. Background Technology

[0002] Water source sampling is the primary step in ensuring the accuracy of water quality monitoring data. For example, the water quality testing device proposed in application number "CN202310716431.7" for multi-directional sampling of water sources includes a body, a connecting line, and an automatic retractor. The connecting line is located on the automatic retractor, and the body is detachably connected to one end of the connecting line. The body is equipped with a swing mechanism, and a transmission cavity and a liquid storage cavity are opened inside the body. The transmission cavity is equipped with a drive mechanism for starting the swing mechanism.

[0003] However, the above-mentioned technical solutions can only complete water sample collection at a single depth. If multiple layers or multiple samplings of the water area are required, operators must repeatedly perform the operation process of equipment deployment-single-layer sampling-equipment retrieval. If multiple water samples at different depths need to be collected, operators need to repeatedly raise and lower the equipment. Each operation not only includes the process of equipment entry into the water, positioning, and sampling, but also requires cleaning and debugging of the equipment after it is removed from the water to avoid cross-contamination between samples from different water layers. This series of tedious and repetitive operations will significantly extend the single sampling cycle, seriously restrict the timeliness of data collection, and make it difficult to meet the needs of rapid response to sudden water pollution events. Therefore, we propose a multi-level water source sampling and monitoring device to solve the above problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a multi-level water sampling and monitoring device, which solves the problem that water samples can only be collected at a single depth at a time. If multiple layers or multiple samplings of a water body are required, operators must repeatedly perform the operation process of equipment deployment-single-layer sampling-equipment retrieval. If multiple water samples at different depths need to be collected, operators need to repeatedly raise and lower the equipment. Each operation not only includes the process of equipment entry into the water, positioning, and sampling, but also requires cleaning and adjustment of the equipment after it is removed from the water to avoid cross-contamination between samples from different water layers. This series of tedious and repetitive operations will greatly extend the single sampling cycle, seriously restrict the timeliness of data collection, and make it difficult to meet the needs of rapid response to sudden water pollution events.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A multi-level water source sampling and monitoring device includes several fixed rods, each with a storage slot inside. Sampling bottles are fitted into the storage slots, and sealing mechanisms are installed at the top of each sampling bottle. Connecting frames are installed on the upper and lower sides of each fixed rod. Connecting ropes are attached to the connecting frames that are close together, and to the connecting frames that are far apart. The upper connecting rope is connected to an external winding device or can be manually removed by the user. A counterweight is installed under the lower connecting rope. The sealing mechanism includes a right-angle double-ended pipe, the lower ends of which are engaged with the mouths of the sampling bottles. A filter screen is installed inside the water inlet at the upper end of the right-angle double-pass pipe. A baffle is fitted inside the upper end of the right-angle double-pass pipe. The baffle and the filter screen are parallel to each other, and the side of the baffle closer to the filter screen is in contact with the inner wall of the right-angle double-pass pipe. Guide rods are installed on the upper and lower sides of the upper end of the right-angle double-pass pipe. The rods are movably installed inside the baffle. Springs are fitted on the outer sides of the rods. A push plate is movably installed inside the right-angle double-pass pipe at the end away from the baffle. The rods are movably installed inside the push plate at the upper and lower ends. The springs are located between the push plate and the baffle.

[0007] Preferably, each of the storage slots has a second threaded hole at its lower end, and the lower end of each sampling bottle is equipped with a second threaded rod, which is installed inside the second threaded hole by thread engagement.

[0008] Preferably, a base plate is installed on the outer side of the sampling bottle opening, and the lower end of the right-angle double-pass tube is engaged and installed on the outer side of the sampling bottle opening and in contact with the base plate. Both the base plate and the lower end of the right-angle double-pass tube are provided with external threads. A connecting cap is movably fitted on the outer side of the sampling bottle opening, and the inner wall of the connecting cap is provided with internal threads. The connecting cap is engaged and installed between the base plate and the right-angle double-pass tube by the threads.

[0009] Preferably, each of the right-angle double-pass pipes is equipped with an annular sealing block at its lower end. The annular sealing blocks are respectively snapped into the inside of the base plate. An annular sealing ring is installed on the side of the baffle near the filter screen, and the annular sealing ring is in contact with the inner wall of the right-angle double-pass pipe.

[0010] Preferably, a fixing block is installed on the upper end of the right-angle double-pass pipe away from the filter screen, and a guide rod is installed on the side of the fixing block away from the filter screen. A first threaded hole is provided through the right-angle double-pass pipe, the fixing block and the extension rod. A first threaded rod is installed inside the first threaded hole by thread. A rotating block is installed at the end of the first threaded rod located inside the right-angle double-pass pipe, and the rotating block is respectively engaged inside the push plate. A turntable is installed at the outer end of the first threaded rod.

[0011] Preferably, a clamp is engaged between the extension rod and the first threaded rod, and a sealing gasket is installed on the side of the clamp near the first threaded rod and the extension rod, and the sealing gasket is in contact with the rod body of the extension rod and the first threaded rod. Several bolts are installed between the clamps.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) In this utility model, users can freely select the number of fixed rods and sampling bottles according to actual sampling needs, and assemble them with a specified length of connecting rope to achieve flexible sampling of waters of different scales and depths. This modular design not only reduces the complexity of operation, but also avoids the problem that traditional sampling devices are difficult to adapt to diverse sampling scenarios due to their fixed structure, and greatly improves sampling efficiency and operational convenience.

[0014] (2) By adjusting the spring force, the sampling bottle can be precisely controlled to open the baffle at a specific depth under water pressure, so as to achieve layered sampling. Compared with the problems of water sample mixing and inaccurate sampling depth that may occur in traditional sampling methods, this design ensures that each sampling bottle only collects water samples at the corresponding depth, effectively improving the accuracy and reliability of sampling data, and providing a more scientific and accurate sample basis for subsequent water quality analysis. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a multi-level water source sampling and monitoring device according to the present invention;

[0016] Figure 2 This is a front view structural diagram of a multi-level water source sampling and monitoring device according to the present invention;

[0017] Figure 3 This is a side view of the multi-level water source sampling and monitoring device of this utility model;

[0018] Figure 4 This utility model relates to a multi-level sampling and monitoring device for water sources. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 5 This utility model relates to a multi-level sampling and monitoring device for water sources. Figure 3 Schematic diagram of the cross-sectional structure at point BB;

[0020] Figure 6 This utility model relates to a multi-level sampling and monitoring device for water sources. Figure 4 Enlarged structural diagram at point C;

[0021] Figure 7This utility model relates to a multi-level sampling and monitoring device for water sources. Figure 5 Enlarged structural diagram at point D;

[0022] Figure 8 This utility model relates to a multi-level sampling and monitoring device for water sources. Figure 6 Enlarged structural diagram at point E in the middle.

[0023] In the diagram: 1. Fixed rod; 2. Storage trough; 3. Sampling bottle; 4. Sealing mechanism; 401. Right-angle double-ended pipe; 402. Base plate; 403. Connecting cap; 404. Annular sealing block; 405. Filter screen; 406. Baffle; 407. Guide rod; 408. Spring; 409. Push plate; 410. First threaded rod; 411. Rotating block; 412. Fixed block; 413. Extension rod; 414. First threaded hole; 415. Turntable; 416. Clamp; 5. Connecting frame; 6. Connecting rope; 7. Counterweight; 8. Second threaded rod; 9. Second threaded hole. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0025] like Figures 1 to 8As shown in the figure, this utility model embodiment proposes a multi-level water source sampling and monitoring device, including several fixed rods 1, each with a storage slot 2 inside. Sampling bottles 3 are respectively fitted inside the storage slots 2. Sealing mechanisms 4 are installed on the upper ends of the sampling bottles 3. Connecting frames 5 are installed on the upper and lower sides of the fixed rods 1. Connecting ropes 6 are tied between the connecting frames 5 that are close to each other, and connecting ropes 6 are tied to the connecting frames 5 that are far apart. The connecting rope 6 at the upper end is connected to an external winding device or can be manually removed by the user. A counterweight 7 is installed on the lower side of the connecting rope 6 at the lower end. The sealing mechanism 4 includes a right-angle double-through pipe 401. The lower end of the right-angle double-through pipe 401 is respectively fitted into the bottle mouth of the sampling bottle 3. A water inlet is located at the upper end of the right-angle double-through pipe 401. The device is equipped with a filter screen 405. A baffle 406 is fitted inside the upper part of the right-angle double-pass pipe 401. The baffle 406 and the filter screen 405 are parallel to each other, and the side of the baffle 406 near the filter screen 405 is in contact with the inner wall of the right-angle double-pass pipe 401. Guide rods 407 are installed on the upper and lower sides of the upper part of the right-angle double-pass pipe 401. The rods of the guide rods 407 are movably installed inside the baffle 406. Springs 408 are sleeved on the outer side of the rods of the guide rods 407. A push plate 409 is movably installed inside the right-angle double-pass pipe 401 at the end away from the baffle 406. The rods of the guide rods 407 are movably installed inside the upper and lower ends of the push plate 409. The springs 408 are located between the push plate 409 and the baffle 406.

[0026] like Figures 6 to 8As shown, in another embodiment of this utility model, the lower end of the storage slot 2 is provided with a second threaded hole 9, and the lower end of the sampling bottle 3 is respectively equipped with a second threaded rod 8. The second threaded rod 8 is respectively installed inside the second threaded hole 9 by threaded engagement. The outer side of the bottle mouth of the sampling bottle 3 is respectively equipped with a base plate 402. The lower end of the right-angle double-pass tube 401 is engaged and installed on the outer side of the bottle mouth of the sampling bottle 3 and is in contact with the base plate 402. The lower outer side of the base plate 402 and the lower end of the right-angle double-pass tube 401 are both provided with... External threads are present. A connecting cap 403 is movably fitted onto the outer side of the sampling bottle 3. The inner wall of the connecting cap 403 has internal threads. The connecting cap 403 is threadedly engaged between the base plate 402 and the right-angle double-pass pipe 401. Annular sealing blocks 404 are installed at the lower ends of the right-angle double-pass pipe 401. The annular sealing blocks 404 are respectively engaged inside the base plate 402. An annular sealing ring is installed on the side of the baffle 406 near the filter screen 405, and the annular sealing ring is engaged with the right-angle double-pass pipe 401. The inner walls of the right-angle double-through pipe 401 are fitted together. A fixing block 412 is installed on the upper end of the right-angle double-through pipe 401 on the side away from the filter screen 405. A guide rod 407 is installed on the side of the fixing block 412 away from the filter screen 405. A first threaded hole 414 is provided between the right-angle double-through pipe 401, the fixing block 412, and the extension rod 413. A first threaded rod 410 is threaded into the first threaded hole 414. One end of the first threaded rod 410 located inside the right-angle double-through pipe 401 is respectively fitted with a... Rotating blocks 411 are respectively engaged and installed inside push plate 409. Turntables 415 are respectively installed on the outer end of the first threaded rod 410. Clamps 416 are engaged and installed between extension rod 413 and the first threaded rod 410. Sealing gaskets are respectively installed on the side of clamps 416 near the first threaded rod 410 and extension rod 413. The sealing gaskets are in contact with the rod body of extension rod 413 and first threaded rod 410. Several bolts are installed between clamps 416.

[0027] According to the sampling requirements, the user takes out the corresponding number of fixing rods 1 and sampling bottles 3. Then, the user screws the second threaded rod 8 at the lower end of the sampling bottle 3 into the second threaded hole 9 at the bottom of the storage slot 2 of the fixing rod 1 to complete the locking connection between the sampling bottle 3 and the fixing rod 1. Then, the lower end of the right-angle double tube 401 of the sealing mechanism 4 is inserted into the outside of the bottle mouth of the sampling bottle 3 and fits against the bottom plate 402, so that the annular sealing block 404 is embedded in the bottom plate 402. Then, the internal thread of the connecting cover 403 is screwed and fixed to the bottom plate 402 and the external thread of the right-angle double tube 401.

[0028] Then the user rotates the turntable 415, which drives the first threaded rod 410 to rotate. Through the rotating block 411, the push plate 409 is pushed or pulled, compressing or releasing the spring 408. The elasticity of the spring 408 is adjusted to achieve precise control of the water pressure threshold required for the baffle 406 to open. This ensures that each sampling bottle 3 is sampled only at a specific depth, such as the surface, middle, or bottom layer, due to the water pressure pushing open the baffle 406. This avoids mixing of samples from different water layers. The guide rod 407 restricts the movement direction of the push plate 409 and the baffle 406 to ensure stable and reliable elasticity adjustment.

[0029] The clamp 416 is installed on the outside of the first threaded rod 410 and the extension rod 413 by bolts to clamp and position the first threaded rod 410, so that it will not rotate during the sampling process. Then, the sealing gasket is used to seal the first threaded rod 410 and the first threaded hole 414 to prevent water from seeping into the right-angle double-pass pipe 401 and the sampling bottle 3 through the gap between the first threaded rod 410 and the first threaded hole 414.

[0030] The user connects the adjacent fixed rod 1 to the connecting frame 5 and the connecting rope 6. The spacing of the fixed rod 1 can be flexibly adjusted by the specified length of the connecting rope 6 to adapt to different water depth requirements and form a vertical multi-layer sampling array. Then the upper connecting rope 6 is connected to an external winding device, or the user can directly take the connecting rope 6 manually. Then the lower connecting rope 6 is equipped with a counterweight 7 to ensure that the device sinks vertically and avoids shaking that causes sampling depth deviation.

[0031] The assembled device is placed in water either by a winding device or manually. Due to the vertical descent of the counterweight 7, each sampling bottle 3 reaches the preset depth along with the fixing rod 1. The filter screen 405 filters impurities from the water, ensuring the purity of the collected water sample and improving the accuracy of the test data.

[0032] When the water pressure at a certain depth reaches the preset elastic force of the spring 408, the water pressure pushes the baffle 406, which then compresses the spring 408, moving the baffle 406 away from the filter screen 405 to open the upper end of the right-angle double-pass pipe 401. This allows water to flow through the right-angle double-pass pipe 401 into the sampling bottle 3 for sampling. After sampling is completed, the user pulls the connecting rope 6 to move it upwards. When the water pressure changes, the spring 408 pushes the baffle 406 back to its original position, resealing the inside of the sampling bottle 3 to complete the sampling and prevent sample mixing.

[0033] The working principle of this multi-level water source sampling and monitoring device:

[0034] In use, the user first takes out the corresponding number of fixing rods 1 and sampling bottles 3 according to the sampling requirements. Then, the user screws the second threaded rod 8 at the lower end of the sampling bottle 3 into the second threaded hole 9 at the bottom of the storage slot 2 of the fixing rod 1, completing the locking connection between the sampling bottle 3 and the fixing rod 1. Then, the lower end of the right-angle double-through tube 401 of the sealing mechanism 4 is inserted into the outside of the bottle mouth of the sampling bottle 3 and fits against the base plate 402, so that the annular sealing block 404 is embedded in the base plate 402. Then, the internal thread of the connecting cover 403 is tightened and fixed to the base plate 402 and the external thread of the right-angle double-through tube 401. Then, the user rotates the turntable 415, which drives the first threaded rod 410 to rotate. The rotating block 411 pushes or pulls the push plate 409 to compress or release the spring 408 and adjust the elasticity of the spring 408. Then, the user connects the connecting frame 5 to the connecting rope 6. The spacing between adjacent fixed rods 1 can be flexibly adjusted by the specified length of the connecting rope 6 to adapt to different water depth requirements. Then, the assembled device is placed in the water by means of a winding device or manually. The device sinks vertically due to the counterweight 7, and each sampling bottle 3 reaches the preset depth along with the fixed rod 1. When the water pressure at a certain depth reaches the preset elastic force of the spring 408, the water pressure pushes the baffle 406, which then compresses the spring 408, moving the baffle 406 away from the filter screen 405 to open the upper end of the right-angle double-pass pipe 401, allowing water to flow through the right-angle double-pass pipe 401 into the sampling bottle 3 for sampling. After sampling is completed, the user pulls the connecting rope 6 to move it upward. When the water pressure changes, the spring 408 pushes the baffle 406 to reset, resealing the inside of the sampling bottle 3 to complete the sampling.

[0035] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A multi-level water source sampling and monitoring device, comprising several fixed rods (1), characterized in that: Each of the fixed rods (1) has a storage slot (2) inside, and a sampling bottle (3) is installed inside the storage slot (2). A sealing mechanism (4) is installed on the upper end of each sampling bottle (3). A connecting frame (5) is installed on the upper and lower sides of the fixed rod (1). A connecting rope (6) is tied between the connecting frames (5) that are close to each other, and a connecting rope (6) is tied on the connecting frames (5) that are far apart from each other. The connecting rope (6) at the upper end is connected to an external winding device or can be manually picked up by the user. A counterweight (7) is installed on the lower side of the connecting rope (6) at the lower end. The sealing mechanism (4) includes a right-angle double-pass pipe (401). The lower end of the right-angle double-pass pipe (401) is engaged with the bottle mouth of the sampling bottle (3). A filter screen (405) is installed inside the water inlet hole at the upper end of the right-angle double-pass pipe (401). A baffle (406) is fitted into the upper part of the inside of (401). The baffle (406) is parallel to the filter screen (405), and the side of the baffle (406) close to the filter screen (405) is in contact with the inner wall of the right-angle double-pass tube (401). Guide rods (407) are respectively installed on the upper and lower sides of the upper part of the inside of the right-angle double-pass tube (401). The rods of the guide rods (407) are respectively movably installed inside the baffle (406). Springs (408) are respectively sleeved on the outer side of the rods of the guide rods (407). A push plate (409) is movably installed inside the right-angle double-pass tube (401) and at the end away from the baffle (406). The rods of the guide rods (407) are respectively movably installed inside the upper and lower ends of the push plate (409). The springs (408) are located between the push plate (409) and the baffle (406).

2. The multi-level sampling and monitoring device for water sources according to claim 1, characterized in that: The lower end of the storage slot (2) is provided with a second threaded hole (9), and the lower end of the sampling bottle (3) is respectively equipped with a second threaded rod (8). The second threaded rod (8) is respectively installed inside the second threaded hole (9) by thread engagement.

3. The multi-level sampling and monitoring device for water sources according to claim 1, characterized in that: A base plate (402) is installed on the outer side of the sampling bottle (3). The lower end of the right-angle double-pass tube (401) is engaged and installed on the outer side of the sampling bottle (3) and is in contact with the base plate (402). The outer side of the lower end of the base plate (402) and the right-angle double-pass tube (401) are both provided with external threads. A connecting cover (403) is movably sleeved on the outer side of the sampling bottle (3). The inner wall of the connecting cover (403) is provided with internal threads. The connecting cover (403) is engaged and installed between the base plate (402) and the right-angle double-pass tube (401) by the threads.

4. The multi-level sampling and monitoring device for water sources according to claim 3, characterized in that: The lower end of each right-angle double-pass pipe (401) is equipped with an annular sealing block (404), which is respectively snapped into the inside of the base plate (402). The baffle (406) is equipped with an annular sealing ring on the side near the filter screen (405), and the annular sealing ring is in contact with the inner wall of the right-angle double-pass pipe (401).

5. The multi-level sampling and monitoring device for water sources according to claim 1, characterized in that: A fixing block (412) is installed on the upper end of the right-angle double-through pipe (401) away from the filter screen (405). A guide rod (407) is installed on the side of the fixing block (412) away from the filter screen (405). A first threaded hole (414) is provided between the right-angle double-through pipe (401), the fixing block (412) and the extension rod (413). A first threaded rod (410) is installed inside the first threaded hole (414) by thread. A rotating block (411) is installed on one end of the first threaded rod (410) inside the right-angle double-through pipe (401). The rotating block (411) is engaged and installed inside the push plate (409). A turntable (415) is installed on the outer end of the first threaded rod (410).

6. The multi-level sampling and monitoring device for water sources according to claim 5, characterized in that: A clamp (416) is engaged between the extension rod (413) and the first threaded rod (410). A sealing gasket is installed on the side of the clamp (416) near the first threaded rod (410) and the extension rod (413), and the sealing gasket is in contact with the rod body of the extension rod (413) and the first threaded rod (410). Several bolts are installed between the clamps (416).

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