A sampling device for water environment monitoring

Abstract

This application discloses a sampling device for water environment monitoring, relating to the field of water environment monitoring technology. The device includes multiple connecting rods joined end-to-end, with sliding rods slidably mounted on each connecting rod. Adjacent sliding rods are joined end-to-end. A counterweight is detachably mounted at the end of one of the sliding rods. A sampling bottle is detachably mounted on each connecting rod, and a sealing plug is mounted on the sliding rod. The sealing plug and the mouth of the sampling bottle are inserted into each other. In use, this device can simultaneously acquire multiple layers of water samples at different depths through a single lowering and raising operation. This is not only convenient and efficient but also avoids disturbing the water body due to multiple operations, preventing water sample mixing and ensuring the representativeness and accuracy of the water samples, thus making it more practical.

Description

Technical Field

[0001] This application relates to the field of water environment monitoring technology, specifically to a sampling device for water environment monitoring. Background Technology

[0002] Water environment monitoring refers to the unified, timed or real-time monitoring of the quality and quantity of water, as well as various anthropogenic and natural factors affecting the ecological and environmental quality of water bodies, in accordance with the water cycle (precipitation, surface water, and groundwater). Monitoring methods include on-site monitoring, laboratory analysis, automatic monitoring stations, remote sensing, biological monitoring, and model monitoring. Among these, laboratory analysis requires the collection of water samples and their return to the laboratory for accurate determination using standard analytical methods. A common problem with existing sampling devices is that a single operation can only obtain a single layer of water sample at a specific depth. When it is necessary to obtain water samples at different depths, multiple operations are required, which is not only cumbersome and inefficient, but also easily disturbs the water body, causing water sample stratification and mixing, affecting the representativeness and accuracy of the samples. Therefore, a sampling device for water environment monitoring is proposed. Utility Model Content

[0003] The purpose of this application is to address the technical problem that a single operation can only obtain a single layer of water sample at a specific depth. When water samples at different depths are needed, multiple operations are required, which is not only cumbersome and inefficient, but also easily disturbs the water body, causing water sample stratification and mixing, thus affecting the representativeness and accuracy of the sample. This application provides a sampling device for water environment monitoring.

[0004] To achieve the above objectives, this application specifically adopts the following technical solution:

[0005] A sampling device for water environment monitoring includes multiple connecting rods spliced ​​end to end, a sliding rod slidably mounted on the connecting rod, two adjacent sliding rods spliced ​​end to end, a counterweight detachably mounted at the end of one of the sliding rods, a sampling bottle detachably mounted on the connecting rod, and a sealing plug mounted on the sliding rod, the sealing plug and the bottle mouth of the sampling bottle being inserted into each other.

[0006] Furthermore, each end of the connecting rod is provided with a positioning block and a positioning hole, and the positioning block is provided with a locking hole. The positioning block and the positioning hole are inserted into each other. A wedge-shaped rod is slidably provided on the connecting rod and a return spring is provided between the two. The wedge-shaped rod abuts against the positioning block and is inserted into the locking hole.

[0007] Furthermore, the sampling bottle and the wedge rod are in contact and overlap.

[0008] Furthermore, the sealing plug is provided with a first sealing ring and an annular groove, and a second sealing ring is provided in the annular groove. The first sealing ring and the sampling bottle are in contact and overlap, and the second sealing ring and the bottle mouth are in contact and overlap.

[0009] Furthermore, the connecting rod is provided with two elastic clips, both of which are L-shaped, and the elastic clips are rotatably provided with clamping wheels that roll and overlap with the sampling bottle.

[0010] Furthermore, the slide rod has a protrusion and a groove at both ends, the protrusion has a through hole, the protrusion and the groove are inserted into each other, and a locking bolt is movably inserted in the groove and the through hole. The locking bolt is threaded with a locking nut that abuts against the slide rod.

[0011] Furthermore, the counterweight is provided with a fixing block that is inserted into the groove, and the fixing block is provided with a fixing hole, and the locking bolt is inserted into the fixing hole.

[0012] Furthermore, the connecting rod has a waist hole, and the sliding rod is provided with a fixing screw that slides and engages with the waist hole. The fixing screw is threaded with a fixing nut that abuts and overlaps with the connecting rod.

[0013] The beneficial effects of this application are as follows: When in use, this application can simultaneously obtain multi-layer water samples at different depths through a single lowering and raising operation. It is not only convenient and efficient to operate, but also avoids disturbing the water body due to multiple operations, avoids water sample mixing, and ensures the representativeness and accuracy of the water samples, thus making it more practical. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural view of this application;

[0015] Figure 2 This is a three-dimensional sectional view of this application;

[0016] Figure 3 This application Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This application Figure 2 Enlarged view of point B in the middle;

[0018] Figure 5 This application Figure 2 Enlarged view of point C in the middle;

[0019] Figure 6 This application Figure 2 Enlarged view at point D;

[0020] Figure 7 This is a three-dimensional sectional view from another perspective of this application;

[0021] Figure 8 This application Figure 7 Enlarged view at point E in the middle;

[0022] Figure 9This is another perspective sectional view of this application.

[0023] Reference numerals: 1. Connecting rod; 2. Slide rod; 3. Counterweight; 4. Sampling bottle; 5. Sealing plug; 6. Positioning block; 7. Positioning hole; 8. Locking hole; 9. Wedge rod; 10. Return spring; 11. First sealing ring; 12. Annular groove; 13. Second sealing ring; 14. Elastic clamp; 15. Clamping wheel; 16. Protrusion; 17. Groove; 18. Through hole; 19. Locking bolt; 20. Locking nut; 21. Fixing block; 22. Fixing hole; 23. Waist hole; 24. Fixing screw; 25. Fixing nut. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figures 1-9 As shown in the figure, an embodiment of this application proposes a sampling device for water environment monitoring, including multiple connecting rods 1 spliced ​​end to end. The connecting rods 1 are vertical, and a sliding rod 2 is slidably disposed on the connecting rod 1. The sliding rod 2 slides along the length direction of the connecting rod 1. Two adjacent sliding rods 2 are spliced ​​end to end. A counterweight 3 is detachably disposed at the end of one of the sliding rods 2. A sampling bottle 4 is detachably disposed on the connecting rod 1. The sampling bottle 4 is vertical and the bottle mouth faces upward. A sealing plug 5 is disposed on the sliding rod 2. The sealing plug 5 is vertical and fixed on the sliding rod 2. The sealing plug 5 and the bottle mouth of the sampling bottle 4 are inserted and matched.

[0026] In its initial state, this application is divided into several individual parts: one part consists of a connecting rod 1, a sliding rod 2, and a sealing plug 5; another part consists of a sampling bottle 4; and the third part consists of a counterweight 3. Before use, an assembly operation is performed: multiple connecting rods 1 are joined end-to-end to form a long rod; two adjacent sliding rods 2 are joined end-to-end to form a lifting rod; the counterweight 3 is installed at the bottom of the lowest sliding rod 2; and then multiple sampling bottles 4 are installed onto the multiple connecting rods 1. In use, the long rod is erected, and the lifting rod slides downwards to its lowest position under the weight of the counterweight 3. The sliding rod 2 then moves the sealing plug 5, which engages with the mouth of the sampling bottle 4 to provide a seal. The long rod is then gradually lowered into the water, with the counterweight 3 reaching the bottom before the long rod. As the long rod continues to descend, the lifting rod and the long rod slide relative to each other, causing the sealing plug 5 to disengage from the mouth of the sampling bottle 4. This process is repeated at different depths. Water samples are poured into sampling bottles 4 at different heights. After a short wait, the long rod is moved upward until water comes out. The lifting rod and the long rod slide relative to each other, and the sealing plug 5 reconnects with the mouth of the sampling bottle 4 to seal it. Finally, the counterweight 3 touches the ground, the long rod and the lifting rod slide relative to each other, and the sealing plug 5 is removed from the mouth of the sampling bottle 4. The sampling bottle 4 is then removed from the connecting rod 1, and the water samples in the multiple sampling bottles 4 are transferred to the storage device. In actual use, if there is deep silt at the bottom of the water, when the counterweight 3 is about to reach the silt layer, the long rod can be stopped from descending, and the lifting rod can be pulled up to make the lifting rod and the long rod slide relative to each other to avoid the influence of silt. After use, the long rod can be disassembled into multiple connecting rods 1, the lifting rod can be disassembled into multiple sliding rods 2, and the counterweight 3 and sliding rods 2 can be disassembled to facilitate transportation and transfer and reduce the space occupied.

[0027] In summary, this application allows for the simultaneous acquisition of multi-layer water samples at different depths through a single lowering and raising operation. This not only makes the operation convenient and efficient but also avoids disturbing the water body due to multiple operations, preventing water sample mixing and ensuring the representativeness and accuracy of the water samples. Therefore, it is more practical.

[0028] like Figure 3 As shown, the specific splicing method of the connecting rod 1 of this application is disclosed. The two ends of the connecting rod 1 are respectively provided with positioning blocks 6 and positioning holes 7. The positioning blocks 6 are fixed at the top end of the connecting rod 1, and the positioning holes 7 are located at the bottom end of the connecting rod 1. The positioning blocks 6 are constructed with locking holes 8, which are horizontal. The positioning blocks 6 and the positioning holes 7 are inserted and matched. The positioning blocks 6 and the positioning holes 7 are both vertical. A wedge rod 9 is slidably provided on the connecting rod 1, and a return spring 10 is provided between the two. The wedge rod 9 slides in the horizontal direction. The return spring 10 is in the horizontal direction and its two ends are fixedly connected to the connecting rod 1 and the wedge rod 9 respectively. The wedge rod 9 abuts and overlaps with the positioning blocks 6 and is inserted and matched with the locking holes 8.

[0029] Referring to the above, in the initial state, the return spring 10 is in its natural state, and the wedge rod 9 is in its initial position. When the two connecting rods 1 are joined end to end, the positioning block 6 on the lower connecting rod 1 is inserted into the positioning hole 7 on the upper connecting rod 1. The top end of the lower connecting rod 1 and the bottom end of the upper connecting rod 1 abut against each other. During this process, the positioning block 6 and the wedge-shaped surface of the wedge rod 9 abut against each other. Through the transition action of the wedge-shaped surface, the wedge rod 9 is forced to slide to its limit position, and the return spring 10 is compressed. Afterward, the return spring 10 returns to its natural state, and the wedge... Wedge rod 9 slides to its initial position due to elastic potential energy and engages with locking hole 8, preventing the two connecting rods 1 from separating and enabling end-to-end splicing. Conversely, after use, pulling wedge rod 9 to its limit position causes it to push out of locking hole 8, compressing return spring 10 and separating the two connecting rods 1. Positioning block 6 on the lower connecting rod 1 exits positioning hole 7 on the upper connecting rod 1. Releasing wedge rod 9 then returns return spring 10 to its natural state, and wedge rod 9 slides to its initial position due to elastic potential energy, thus separating the two connecting rods 1.

[0030] like Figure 3 As shown, a further technical solution of this application is disclosed, wherein the sampling bottle 4 and the wedge rod 9 are in contact and overlap;

[0031] Referring to the above, when the sampling bottle 4 is installed on the connecting rod 1, the sampling bottle 4 will contact and overlap with the wedge rod 9. The sampling bottle 4 will limit the wedge rod 9, preventing the wedge rod 9 from sliding due to external factors during use and improving the stability of use.

[0032] like Figure 4 As shown, a further technical solution of this application is disclosed. The sealing plug 5 is provided with a first sealing ring 11 and an annular groove 12. The first sealing ring 11 is tightly fitted on the sealing plug 5. The annular groove 12 and the sealing plug 5 are coaxially distributed. A second sealing ring 13 is provided in the annular groove 12. The second sealing ring 13 is stuck in the annular groove 12. The first sealing ring 11 and the sampling bottle 4 are in contact and overlap. The second sealing ring 13 and the bottle mouth are in contact and overlap.

[0033] Referring to the above, when the sealing plug 5 and the bottle mouth of the sampling bottle 4 are inserted and fitted together to form a seal, the first sealing ring 11 deforms and fits the sampling bottle 4, and the second sealing ring 13 deforms and fits the bottle mouth, thereby further improving the sealing performance. Conversely, when the sealing plug 5 is removed from the bottle mouth, both the first sealing ring 11 and the second sealing ring 13 return to their natural state.

[0034] like Figure 9As shown, the specific disassembly method of the sampling bottle 4 of this application is disclosed. Two elastic clips 14 with L-shaped structures are provided on the connecting rod 1. The two elastic clips 14 are fixed on the connecting rod 1 and symmetrically distributed. A clamping wheel 15 that rolls and overlaps with the sampling bottle 4 is rotatably provided on the elastic clip 14. The axis of the clamping wheel 15 is in the vertical direction. The clamping wheel 15 is made of hard rubber and has a petal-shaped structure.

[0035] Referring to the above, in the initial state, both elastic clamps 14 are in their natural state, and the two clamping wheels 15 are close to each other. When the sampling bottle 4 is installed on the connecting rod 1, the outer surface of the sampling bottle 4 contacts the two clamping wheels 15. Then, the sampling bottle 4 is pushed forcefully. During this process, the two clamping wheels 15 first move away from each other, and both elastic clamps 14 undergo elastic deformation. Afterward, both elastic clamps 14 return to their natural state. The two clamping wheels 15 deform after moving close to each other and both collide with the sampling bottle 4 to form a clamping force on the sampling bottle 4, making it difficult for the sampling bottle 4 to move, thereby realizing the installation of the sampling bottle 4. Conversely, after use, when the sampling bottle 4 is pulled forcefully, the two clamping wheels 15 first move away from each other, and both elastic clamps 14 undergo elastic deformation. Afterward, both elastic clamps 14 return to their natural state, and the two clamping wheels 15 move close to each other, so that the sampling bottle 4 can be disassembled.

[0036] like Figures 5-6 As shown, the specific splicing method of the slide rod 2 of this application is disclosed. The two ends of the slide rod 2 are respectively provided with a protrusion 16 and a groove 17. The protrusion 16 is fixed at the top of the slide rod 2, and the groove 17 is located at the bottom of the slide rod 2. A through hole 18 is constructed on the protrusion 16. The through hole 18 is in the horizontal direction. The protrusion 16 and the groove 17 are inserted and matched. Both the protrusion 16 and the groove 17 are in the vertical direction. A locking bolt 19 is movably inserted in the groove 17 and the through hole 18. The locking bolt 19 is in the horizontal direction. A locking nut 20 that abuts and overlaps with the slide rod 2 is threaded on the locking bolt 19.

[0037] Referring to the above, when two adjacent slide rods 2 are joined end to end, the protrusion 16 on the lower slide rod 2 is inserted into the groove 17 on the upper slide rod 2, and the top end of the lower slide rod 2 and the bottom end of the upper slide rod 2 abut against each other. The groove 17 and the through hole 18 are connected. Then, the locking bolt 19 is moved through the groove 17 and the through hole 18, and the locking nut 20 is threaded onto the locking bolt 19 until the locking nut 20 and the slide rod 2 abut against each other, and the two slide rods 2 cannot be separated, thus achieving the end-to-end splicing. Conversely, after use, the locking nut 20 is loosened away from the slide rod 2 and the locking bolt 19, so that the locking bolt 19 is removed from the groove 17 and the through hole 18, the protrusion 16 is removed from the groove 17, and the two slide rods 2 are separated.

[0038] like Figure 6As shown, the specific disassembly method of the counterweight 3 of this application is disclosed. The counterweight 3 is provided with a fixing block 21 that is inserted into the groove 17. The fixing block 21 is fixed on the counterweight 3. The fixing block 21 is constructed with a fixing hole 22. The fixing hole 22 is horizontal. The locking bolt 19 is inserted into the fixing hole 22.

[0039] Referring to the above, during installation, the fixing block 21 and the groove 17 on the bottom slide rod 2 are inserted and engaged, and the counterweight block 3 and the bottom end of the bottom slide rod 2 are in contact and overlap. The locking bolt 19 is movably inserted into the groove 17 and the fixing hole 22, and then the locking nut 20 is threaded onto the locking bolt 19 until the locking nut 20 and the slide rod 2 are in contact and overlap, and the counterweight block 3 and the slide rod 2 cannot be separated, thus realizing the installation of the counterweight block 3. Conversely, after use, the locking nut 20 is loosened away from the slide rod 2 and the locking bolt 19, so that the locking bolt 19 is removed from the groove 17 and the fixing hole 22, the fixing block 21 is removed from the groove 17, and the counterweight block 3 and the slide rod 2 are separated.

[0040] like Figure 8 As shown, a further technical solution of this application is disclosed. The connecting rod 1 is constructed with a waist hole 23, which is in a vertical direction. The sliding rod 2 is provided with a fixing screw 24 that slides and engages with the waist hole 23. The fixing screw 24 is in a horizontal direction and is fixed on the sliding rod 2. The fixing screw 24 is threaded with a fixing nut 25 that abuts and overlaps with the connecting rod 1.

[0041] Referring to the above, in the initial state, the fixing nut 25 is threaded onto the fixing screw 24 and abuts against the connecting rod 1, thereby locking the position of the slide rod 2 and preventing relative sliding between the connecting rod 1 and the slide rod 2 during transportation and transfer, thus improving stability. During installation, the fixing nut 25 is loosened away from the connecting rod 1 to unlock the position of the slide rod 2. When the slide rod 2 slides, it drives the fixing screw 24 to slide within the waist hole 23. After use, the fixing nut 25 is tightened again to lock the position of the slide rod 2.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sampling device for water environment monitoring, characterized in that, It includes multiple connecting rods (1) spliced ​​end to end, with slide rods (2) slidably arranged on the connecting rods (1), two adjacent slide rods (2) spliced ​​end to end, a counterweight (3) detachably arranged at the end of one of the slide rods (2), a sampling bottle (4) detachably arranged on the connecting rods (1), a sealing plug (5) arranged on the slide rods (2), and the sealing plug (5) and the bottle mouth of the sampling bottle (4) are inserted and matched.

2. The sampling device for monitoring a water environment according to claim 1, wherein The connecting rod (1) is provided with a positioning block (6) and a positioning hole (7) at both ends respectively. The positioning block (6) is provided with a locking hole (8). The positioning block (6) and the positioning hole (7) are inserted into each other. A wedge rod (9) is slidably provided on the connecting rod (1) and a return spring (10) is provided between the two. The wedge rod (9) and the positioning block (6) abut against each other and are inserted into the locking hole (8).

3. The sampling device for monitoring a water environment according to claim 2, wherein The sampling bottle (4) and the wedge rod (9) are in contact and overlap.

4. The sampling device for monitoring a water environment according to claim 1, wherein The sealing plug (5) is provided with a first sealing ring (11) and an annular groove (12), and a second sealing ring (13) is provided in the annular groove (12). The first sealing ring (11) and the sampling bottle (4) are in contact and overlap, and the second sealing ring (13) and the bottle mouth are in contact and overlap.

5. The sampling device for monitoring a water environment according to claim 1, wherein The connecting rod (1) is provided with two elastic clips (14) that are both L-shaped. The elastic clips (14) are rotatably provided with clip wheels (15) that roll and overlap with the sampling bottle (4).

6. The sampling device for monitoring a water environment according to claim 1, wherein The slide rod (2) has a protrusion (16) and a groove (17) at both ends respectively. The protrusion (16) has a through hole (18). The protrusion (16) and the groove (17) are inserted into each other. A locking bolt (19) is inserted into the groove (17) and the through hole (18). A locking nut (20) that abuts against the slide rod (2) is threaded on the locking bolt (19).

7. The sampling device for monitoring a water environment according to claim 6, wherein The counterweight (3) is provided with a fixing block (21) that is inserted into the groove (17). The fixing block (21) is provided with a fixing hole (22). The locking bolt (19) is inserted into the fixing hole (22).

8. The sampling device for monitoring a water environment according to claim 1, wherein The connecting rod (1) has a waist hole (23), and the sliding rod (2) is provided with a fixing screw (24) that slides and engages with the waist hole (23). The fixing screw (24) is threaded with a fixing nut (25) that abuts and overlaps with the connecting rod (1).

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