Underground water passive sampling device

Abstract

The utility model relates to the technical field of underground water sampling, and particularly discloses an underground water passive sampling device which comprises a sampling bottle, a mounting frame and a protective frame, a plurality of groups of water inlet through holes are formed in the mounting frame, and the mounting frame is in sliding connection with the protective frame through a limiting piece; the sampling bottle is arranged on the protection frame through a fixing piece, and an unlocking piece is arranged between the mounting frame and the fixing piece; and a plugging block is further arranged on the mounting frame through a clamping piece. According to the sampling device, the mounting frame slides downwards in the protection frame, the fixing piece is unlocked through the unlocking piece in the downward sliding stroke of the protection frame, the plugging block is clamped in the sampling bottle to plug the sampling bottle, and the working efficiency of the sampling device is improved. When the plugging block is clamped in the sampling bottle, the fixing piece unlocks the sampling bottle, at the moment, when the sampling bottle is detached from the protection frame, external impurities cannot enter the sampling bottle, it is guaranteed that a sample is not polluted, and the detection accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of groundwater sampling technology, specifically a passive groundwater sampling device. Background Technology

[0002] Groundwater refers to water that exists in the pores of rocks below the ground surface; in a narrower sense, it refers to water in saturated aquifers below the groundwater level. Groundwater is an important component of water resources, and due to its stable quantity and good quality, it is one of the important water sources for agricultural irrigation, industrial mining, and cities.

[0003] With industrial development, groundwater pollution has become increasingly serious, severely impacting normal crop growth and public drinking water safety. Groundwater pollution includes substances such as phenols, chromium, mercury, arsenic, radioactive materials, bacteria, and organic matter. Only by clearly understanding the specific circumstances of groundwater pollution can targeted remediation measures be implemented. Therefore, groundwater monitoring is of paramount importance. To facilitate monitoring of groundwater conditions, it is necessary to sample and test groundwater sources. Most existing sampling equipment involves placing a sampling tube in water and submerging it to the desired sampling location to collect a sample from the water source.

[0004] In the prior art, such as the Chinese patent with application number 202023249722.0 and authorization announcement number CN213956875U, entitled "A Passive Groundwater Sampling Device", the aforementioned patent discloses a passive groundwater sampling device consisting of a sampling bottle, an outer cover, an inner cover, and a counterweight cover; the inner cover is threadedly connected to the mouth of the sampling bottle, the bottom of the inner cover is a first filter screen, the lower end of the outer cover is provided with several claws, the outer cover near the bottom circumference is provided with multiple water-permeable holes, the outer wall of the outer cover is provided with a second filter screen covering the water-permeable holes, the inner wall of the outer cover is provided with an annular first limiting protrusion below the water-permeable holes, the inner wall of the outer cover near the lower end is provided with an internal thread, the middle of the outer wall of the sampling bottle is provided with an annular second limiting protrusion, the outer surface of the second limiting protrusion is provided with an external thread matching the internal thread of the outer cover, the outer cover is fitted onto the inner cover, and the claws are engaged with the lower part of the second limiting protrusion, and a spring is provided between the first limiting protrusion and the second limiting protrusion.

[0005] Existing technologies, such as the aforementioned patents, can meet the needs of groundwater sampling to a certain extent. However, as is known, in these patents, the sampling bottle still needs to be removed from its outer cap before it can be sealed after groundwater sampling is completed, which has certain shortcomings. Utility Model Content

[0006] The purpose of this invention is to provide a passive groundwater sampling device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a passive groundwater sampling device, comprising a sampling bottle and a mounting frame, wherein the mounting frame has multiple sets of water inlet holes and a protective frame, wherein the mounting frame is slidably connected to the protective frame by a limiting member; the sampling bottle is mounted on the protective frame by a fixing member, and an unlocking member is provided between the mounting frame and the fixing member; a sealing block is also provided on the mounting frame by a snap-fit ​​member, and the sealing block is adapted to the sampling bottle.

[0008] Furthermore, the fixing component includes multiple sets of clamping blocks slidably connected to the protective frame. Each clamping block is provided with a clamping spring between itself and the protective frame, and a clamping groove is provided on the sampling bottle. The elastic force of the clamping spring drives the clamping block to engage in the clamping groove, thereby fixing the sampling bottle.

[0009] Furthermore, the unlocking component includes an unlocking rod fixedly connected to the mounting frame, an unlocking block fixedly connected to the bottom of the unlocking rod, an unlocking groove provided on the locking block, and the unlocking block abutting and engaging with the unlocking groove.

[0010] Furthermore, the snap-fit ​​component includes a snap-fit ​​rod fixedly connected to the sealing block, and a snap-fit ​​groove is provided on the top of the mounting frame, into which the snap-fit ​​rod snaps.

[0011] Furthermore, the sealing block is wedge-shaped and is interference-fitted with the sampling bottle.

[0012] Furthermore, a filter screen is provided on the mounting frame, and a cleaning brush for cleaning the filter screen is provided on the protective frame. When the mounting frame slides down, the cleaning brush cleans the filter screen.

[0013] Furthermore, the limiting component includes multiple sets of limiting strips fixedly connected to the outside of the mounting frame, and the protective frame has a limiting groove adapted to the limiting strips inside, and the limiting strips are slidably connected to the limiting grooves.

[0014] Furthermore, the protective frame has multiple sets of sliding grooves, and each locking block is slidably connected to the protective frame through the sliding groove.

[0015] Furthermore, a lifting ring is provided on the top of the mounting frame.

[0016] Furthermore, a counterweight is provided at the bottom of the sampling bottle.

[0017] Compared with existing technologies, the beneficial effects of this utility model are as follows: This passive groundwater sampling device, through the cooperation of the sampling bottle, mounting frame, protective frame, limiting component, and unlocking component, allows the sampling bottle to be placed in a predetermined position after sampling is completed. At this point, by holding the protective frame and pressing down on the mounting frame, the mounting frame slides downwards inside the protective frame. During the downward sliding motion of the protective frame, the unlocking component unlocks the fixing component. Simultaneously, the sealing block engages inside the sampling bottle to seal it, improving the working efficiency of the sampling device. When the sealing block is engaged inside the sampling bottle, the fixing component has also unlocked the sampling bottle. Therefore, when the sampling bottle is removed from the protective frame at this point, external impurities will not enter the sampling bottle, ensuring that the sample is not contaminated and improving the accuracy of the detection. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall top view structure provided for an embodiment of the present utility model;

[0021] Figure 3 for Figure 2 Schematic diagram of the structure in sectional view along the AA section;

[0022] Figure 4 A schematic diagram of the overall explosion state provided for an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram showing the blocking block snapped into the sampling bottle according to an embodiment of the present invention;

[0024] Figure 6 This is a partial structural diagram of the unlocking component provided in an embodiment of the present utility model;

[0025] Figure 7 for Figure 3 A schematic diagram of the enlarged structure of region A in the middle.

[0026] Explanation of reference numerals in the attached diagram: 1. Sampling bottle; 2. Mounting frame; 3. Protective frame; 4. Clamping block; 5. Clamping groove; 6. Counterweight block; 7. Clamping spring; 8. Slide groove; 9. Unlocking groove; 10. Unlocking block; 11. Unlocking rod; 12. Limiting groove; 13. Limiting strip; 14. Water inlet hole; 15. Cleaning brush; 16. Filter screen; 17. Sealing block; 18. Snap-fit ​​connector; 19. Lifting ring. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-7 This utility model provides a technical solution: a passive groundwater sampling device, including a sampling bottle 1 and a mounting frame 2. The mounting frame 2 has multiple sets of water inlet holes 14 and a protective frame 3. The mounting frame 2 is slidably connected to the protective frame 3 by a limiting member. The sampling bottle 1 is fixed on the protective frame 3 by a fixing member, and an unlocking member is provided between the mounting frame 2 and the fixing member. The mounting frame 2 is also provided with a blocking block 17 by a snap-fit ​​member 18, and the blocking block 17 is adapted to the sampling bottle 1.

[0029] Specifically, the passive groundwater sampling device includes a sampling bottle 1 and a mounting frame 2. The mounting frame 2 has multiple sets of inlet holes 14. During use, water enters the sampling bottle 1 through the inlet holes 14 to complete the groundwater sampling operation. It also includes a protective frame 3. The mounting frame 2 is slidably connected to the protective frame 3 via a limiting component. The sampling bottle 1 is fixed to the protective frame 3 via a fixing component, facilitating installation inside the protective frame 3 for subsequent groundwater sampling operations. An unlocking component is provided between the mounting frame 2 and the fixing component, allowing the fixing component to be unlocked and the sampling bottle 1 to be removed from the protective frame 3, thus enabling groundwater collection. The mounting frame 2 also has a sealing block 17 via a snap-fit ​​component 18, which is compatible with the sampling bottle 1. After sampling is completed, the sampling bottle 1 is placed in the designated position. Then, by holding the protective frame 3 and pressing down on the mounting frame 2, the mounting frame 2 slides downwards inside the protective frame 3. During this downward sliding motion, the locking mechanism unlocks the fixing component. Simultaneously, the sealing block 17 engages inside the sampling bottle 1, sealing it and improving the efficiency of the sampling device. When the sealing block 17 is engaged inside the sampling bottle 1, the fixing component has also unlocked the bottle. Therefore, when the sampling bottle 1 is removed from the protective frame 3, external impurities will not enter the bottle, ensuring the sample is not contaminated and improving the accuracy of the test.

[0030] In the embodiments provided by this utility model, the fixing component includes multiple sets of clamping blocks 4 slidably connected to the protective frame 3. Each clamping block 4 is provided with a clamping spring 7 between it and the protective frame 3. The sampling bottle 1 is provided with a clamping groove 5. The elastic force of the clamping spring 7 drives the clamping block 4 to engage in the clamping groove 5, thereby fixing the sampling bottle 1 and improving the stability of the sampling bottle 1 during installation.

[0031] In the embodiments provided by this utility model, the unlocking component includes an unlocking rod 11 fixedly connected to the mounting frame 2, an unlocking block 10 fixedly connected to the bottom of the unlocking rod 11, and an unlocking groove 9 provided on the clamping block 4. The unlocking block 10 and the unlocking groove 9 abut against each other. Specifically, the unlocking block 10 and the unlocking groove 9 are both wedge-shaped. When the mounting frame 2 slides down, the unlocking rod 11 drives the unlocking block 10 to slide, and the unlocking groove 9 drives the clamping block 4 to slide, so that the clamping block 4 slides out from the inside of the unlocking groove 9, and the sampling bottle 1 can be removed from the protective frame 3, which greatly improves the practicality of the sampling device.

[0032] In the embodiments provided by this utility model, the snap-fit ​​component 18 includes a snap-fit ​​rod fixedly connected to the sealing block 17. A slot is provided on the top of the mounting frame 2, and the snap-fit ​​rod snaps into the slot. Specifically, the snap-fit ​​rod can be made of elastic material. The sealing block 17 is wedge-shaped and is interference-fitted with the sampling bottle 1. The sealing block 17 can be made of rubber. When the mounting frame 2 slides down, the sealing block 17 snaps into the mouth of the sampling bottle 1. At this time, the friction between the sealing block 17 and the sampling bottle 1 is greater than the friction between the snap-fit ​​rod and the mounting frame 2. At this time, the sampling bottle 1 can be smoothly disassembled from the mounting frame 2 and the protective frame 3 with the sealing block 17, which meets the working requirements.

[0033] In the embodiments provided by this utility model, a filter screen 16 is provided on the mounting frame 2 to filter and prevent impurities in the water from entering the sampling bottle 1, thus meeting the operational requirements. Furthermore, a cleaning brush 15 is provided on the protective frame 3 for cleaning the filter screen 16. When the mounting frame 2 slides downwards, the cleaning brush 15 cleans the filter screen 16, resulting in better performance.

[0034] In the embodiments provided by this utility model, the limiting component includes multiple sets of limiting strips 13 fixedly connected to the outside of the mounting frame 2, and the protective frame 3 has a limiting groove 12 adapted to the limiting strips 13 inside. The limiting strips 13 and the limiting groove 12 are slidably connected, which further improves the stability of the mounting frame 2 and the protective frame 3 during installation.

[0035] In the embodiments provided by this utility model, the protective frame 3 is provided with multiple sets of sliding grooves 8, and each clamping block 4 is slidably connected to the protective frame 3 through the sliding groove 8, thereby improving the stability of the clamping block 4 when sliding.

[0036] In the embodiments provided by this utility model, a hanging ring 19 is provided on the top of the mounting frame 2 to facilitate the use of the sampling device.

[0037] In the embodiments provided by this utility model, a counterweight 6 is provided on the bottom of the sampling bottle 1. Specifically, the counterweight 6 includes a counterweight cover, which is snapped into the bottom of the sampling bottle 1. The counterweight cover is filled with quartz sand to adjust the weight of the sampling device, and the amount of quartz sand can be adjusted as needed for better performance.

[0038] It should be noted that all electrical equipment involved in this application can be powered by batteries or external power sources.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An underground water passive sampling device, comprising a sampling bottle (1) and a mounting frame (2) with multiple groups of water inlet through holes (14) formed therein, characterized in that: a protective frame (3) is further included, and the mounting frame (2) is slidably connected with the protective frame (3) through a limiting piece; the sampling bottle (1) is arranged on the protective frame (3) through a fixing piece, and an unlocking piece is arranged between the mounting frame (2) and the fixing piece; a blocking block (17) is further arranged on the mounting frame (2) through a clamping piece (18), and the blocking block (17) is matched with the sampling bottle (1).

2. A passive groundwater sampling device according to claim 1, wherein: the fixing piece comprises multiple clamping blocks (4) slidably connected with the protective frame (3), a clamping spring (7) is arranged between each clamping block (4) and the protective frame (3), and a clamping groove (5) is formed in the sampling bottle (1), the clamping spring (7) drives the clamping block (4) to be clamped in the clamping groove (5) to fix the sampling bottle (1).

3. A passive groundwater sampling device according to claim 2, wherein: the unlocking piece comprises an unlocking rod (11) fixedly connected with the mounting frame (2), an unlocking block (10) is fixedly connected with the bottom of the unlocking rod (11), an unlocking groove (9) is formed in the clamping block (4), and the unlocking block (10) is in abutting engagement with the unlocking groove (9).

4. The groundwater passive sampling device of claim 1, wherein: the clamping piece (18) comprises a clamping rod fixedly connected with the blocking block (17), a clamping groove is formed in the top of the mounting frame (2), and the clamping rod is clamped in the clamping groove.

5. A passive groundwater sampling device according to claim 4, wherein: the blocking block (17) is wedge-shaped and is in interference fit with the sampling bottle (1).

6. The groundwater passive sampling device of claim 1, wherein: a filter screen (16) is arranged on the mounting frame (2), a cleaning brush (15) for cleaning the filter screen (16) is arranged on the protective frame (3), and the cleaning brush (15) cleans the filter screen (16) when the mounting frame (2) slides downward.

7. The device of claim 1, wherein: the limiting piece comprises multiple limiting strips (13) fixedly connected with the outer side of the mounting frame (2), limiting grooves (12) matched with the limiting strips (13) are formed in the protective frame (3), and the limiting strips (13) are slidably connected with the limiting grooves (12).

8. The device of claim 2, wherein: multiple slide grooves (8) are formed in the protective frame (3), and each clamping block (4) is slidably connected with the protective frame (3) through the slide grooves (8).

9. The device of claim 1, wherein: a lifting ring (19) is arranged on the top of the mounting frame (2).

10. The groundwater passive sampling device of claim 1, wherein: a counterweight block (6) is arranged on the bottom of the sampling bottle (1).

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