Underground water sampling device

Abstract

The utility model provides an underground water sampling device and belongs to the technical field of underground water collection. Comprising a sampling assembly, the sampling assembly comprises a long-strip-shaped sampling cover, a chassis is installed at the bottom of the sampling cover, water guide openings are formed in the outer edge of the sampling cover at equal intervals, and a collecting assembly is installed in the sampling cover; the collecting assembly comprises a first collecting barrel and a second collecting barrel, a rotating shaft is arranged at the top of the base plate and the top of the first collecting barrel in a protruding mode, rotating grooves are drilled in the bottoms of the first collecting barrel and the second collecting barrel, and liquid inlets are formed in the positions, close to the tops, of the outer edges of the first collecting barrel and the second collecting barrel; arc-shaped embedding grooves are formed in the tops of the first collecting barrel and the second collecting barrel, protruding plates are arranged at the bottoms of the first collecting barrel and the second collecting barrel in a protruding mode, and stepping motors are installed at the inner tops of the containing cavities. The underground water sampling device can be used for follow-up sampling of different underground water at different heights, and the situation that multiple times of sampling are needed when underground water at different depths is sampled can be avoided as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater collection, in particular to a groundwater sampling device. Background Art

[0002] In hydrogeological exploration, it is necessary to sample groundwater in different areas in order to observe the water quality in each area. At present, the commonly used gas displacement sampler cannot monitor the water condition in the sampler in time. If the water in the sampling bottle is full, continuing to transport high-pressure gas into the sampler will cause waste of high-pressure gas and increase sampling costs. In water quality restoration projects, water sample collection is a crucial link in water environment monitoring. The standardization and accuracy of water sample collection directly affect the accuracy of subsequent tests.

[0003] Existing groundwater collection devices mostly collect groundwater through a single sampling tube during the groundwater collection process. During the collection process, it is not possible to collect groundwater at different depths at one time, and multiple collection operations are required, which makes the overall work more cumbersome.

[0004] Therefore, the present application provides a groundwater sampling device to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a groundwater sampling device to solve the problem that the existing groundwater collection devices mostly use a single sampling tube to collect groundwater during the process of groundwater collection. During the collection process, it is not possible to collect groundwater at different depths at one time, and multiple collection operations are required, which makes the overall work more cumbersome.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A groundwater sampling device comprises a sampling assembly, wherein the sampling assembly comprises a long strip sampling cover, a chassis is installed at the bottom of the sampling cover, water guide ports are equidistantly provided at the outer edge of the sampling cover, a receiving cavity is arranged inside the sampling cover, and a collection assembly for auxiliary sampling is installed in the receiving cavity;

[0008] The collecting assembly comprises a first collecting cylinder and a second collecting cylinder, a rotating shaft is protrudingly provided at the top of the chassis and the first collecting cylinder, a rotating groove is drilled at the bottom of the first collecting cylinder and the second collecting cylinder, a liquid inlet is provided at the outer edge of the first collecting cylinder and the second collecting cylinder near the top, a duckbill valve is installed at the liquid inlet, the liquid inlet is communicated with the water guide port, an arc-shaped embedding groove is provided at the top of the first collecting cylinder and the second collecting cylinder, a protruding plate is protrudingly provided at the bottom of the first collecting cylinder and the second collecting cylinder, the protruding plate slides in cooperation with the embedding groove, and a stepping motor for assisting the rotation of the collecting assembly is installed at the inner top of the accommodating cavity.

[0009] Optionally, a cross-shaped positioning slot is provided at the top of the second collecting cylinder, and a cross-shaped positioning tooth is provided at the front end of the shaft of the stepping motor, and the positioning tooth is plugged into the positioning slot.

[0010] Optionally, a sampling cavity is provided inside the first collecting tube, a drainage hole is provided at the bottom of the sampling cavity, and a sealing assembly for auxiliary sealing is installed at the drainage hole.

[0011] Optionally, the sealing assembly comprises a cross-shaped sealing frame, a sliding rod is installed on the sealing frame, a sealing disk is installed at the bottom of the sliding rod, and a pushing spring for assisting the sealing disk to be pushed is installed on the sliding rod.

[0012] Optionally, slots are symmetrically provided at the bottom of the sampling cover, and plug blocks are protrudingly provided at the outer edge of the chassis, and the slots and the plug blocks are plugged in a cooperative manner.

[0013] Optionally, insertion holes are symmetrically provided on both sides of the water guide port, a positioning cavity is provided inside the chassis, and a positioning component for auxiliary positioning is installed in the positioning cavity.

[0014] Optionally, the positioning assembly includes a winding disk rotatably arranged at the center of the chassis, and latches are symmetrically and slidably arranged on both sides of the plug block. The latches are matingly plugged into the sockets, and an ejection spring pushed by an auxiliary latch is installed inside the plug block, and the latches are connected to the winding disk by a connecting belt.

[0015] Optionally, a pull ring is installed at the top of the sampling component, a connecting rope is tied to the pull ring, and the connecting rope is wound on a winding shaft.

[0016] Optionally, the winding shaft is mounted on a bracket, and a winding motor for driving the winding shaft to rotate is mounted on the bracket.

[0017] Optionally, scale lines are engraved on the connecting rope, and the zero scale line of the connecting rope is located at one end close to the pull ring.

[0018] Compared with the prior art, the utility model has at least the following beneficial effects:

[0019] In the above scheme, through the collection component arranged inside the sampling cover, when working, the stepper motor drives the second collecting tube on the top to rotate a certain angle, so that the water inlet on the second collecting tube is connected with the water guide port, so as to complete the water sample collection of the corresponding depth. After reaching a certain depth, the stepper motor is started again, and the stepper motor drives the second collecting tube to continue to rotate. The second collecting tube drives the protruding plate at the bottom to rotate, so that the protruding plate slides along the embedded groove, and drives the first collecting tube to rotate as a whole when the protruding plate moves to one end. When the water inlet at the corresponding first collecting tube reaches the water guide port at the sampling cover, the liquid sampling is continued, and the subsequent sampling of groundwater at different depths can be carried out, and the situation that multiple collections are required when sampling groundwater at different depths can be avoided as much as possible.

[0020] By setting the sampling cover and the chassis as well as the positioning components inside the chassis, it can be ensured that the sampling cover can form a whole in the working state, and the chassis can be quickly disassembled after the subsequent work is completed.

[0021] By setting the scale lines on the connecting rope, the overall depth of the entire falling of the sampling assembly can be effectively determined during the working process, and the sampling process is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the groundwater sampling device;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the sampling assembly of the groundwater sampling device when it is unfolded;

[0025] Figure 3 It is a longitudinal cross-sectional view of the first collecting tube of the groundwater sampling device;

[0026] Figure 4 It is a transverse cross-sectional view of the chassis of the groundwater sampling device.

[0027] [Reference Signs]

[0028] 1. Bracket; 2. Winding shaft; 3. Connecting rope; 4. Sampling assembly; 5. Sampling cover; 51. Water inlet; 52. Slot; 53. Socket; 6. Chassis; 61. Insert block; 7. Positioning assembly; 8. Push spring; 9. Latch; 10. Winding disc; 11. Connecting belt; 12. Collecting assembly; 13. First collecting cylinder; 131. Protruding plate; 132. Embedded groove; 14. Second collecting cylinder; 141. Positioning slot; 15. Duckbill valve; 16. Rotating shaft; 17. Rotating groove; 18. Sealing assembly; 19. Sealing frame; 20. Sliding rod; 21. Push spring; 22. Sealing disc.

[0029] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0030] The following is a detailed description of a groundwater sampling device provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0031] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0032] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0033] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0034] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0035] like Figures 1 to 4 As shown, an embodiment of the utility model provides a groundwater sampling device, including a sampling component 4, a pull ring is installed at the top of the sampling component 4, a connecting rope 3 is tied to the pull ring, the connecting rope 3 is wound and installed on the winding shaft 2, the winding shaft 2 is installed on the bracket 1, and a winding motor for driving the winding shaft 2 to rotate is installed on the bracket 1, and scale lines are engraved on the connecting rope 3, and the zero scale line of the connecting rope 3 is located at one end close to the pull ring. By setting the scale lines on the connecting rope 3, the overall depth of the overall fall of the sampling component 4 can be effectively determined during the working process, and the sampling process is convenient.

[0036] As an implementation method in this embodiment, refer to Figure 2 and Figure 3As shown, the sampling assembly 4 includes a long strip sampling cover 5, a chassis 6 is installed at the bottom of the sampling cover 5, and water guide ports 51 are equidistantly opened at the outer edge of the sampling cover 5. A receiving cavity is arranged inside the sampling cover 5, and an auxiliary sampling collection assembly 12 is installed in the receiving cavity. The collection assembly 12 includes a first collection tube 13 and a second collection tube 14. A rotating shaft 16 is protrudingly arranged at the top of the chassis 6 and the first collection tube 13. A rotating groove 17 is drilled at the bottom of the first collection tube 13 and the second collection tube 14. A liquid inlet is opened near the top of the outer edge of the first collection tube 13 and the second collection tube 14. The liquid inlet A duckbill valve 15 is installed at the top, the liquid inlet and the water guide port 51 are connected in cooperation, the first collecting cylinder 13 and the second collecting cylinder 14 are provided with an arc-shaped embedding groove 132 at the top, the first collecting cylinder 13 and the second collecting cylinder 14 are provided with a protruding plate 131 at the bottom, the protruding plate 131 and the embedding groove 132 slide in cooperation, a stepper motor for assisting the collection component 12 to rotate is installed at the inner top of the accommodating cavity, a cross-shaped positioning slot 141 is provided at the top of the second collecting cylinder 14, and a cross-shaped positioning tooth is provided at the front end of the shaft of the stepper motor, and the positioning tooth and the positioning slot 141 are plugged in cooperation.

[0037] Through the collecting assembly 12 arranged inside the sampling cover 5, when working, the stepper motor drives the second collecting cylinder 14 on the top to rotate a certain angle, so that the water inlet on the second collecting cylinder 14 is connected with the water guide port 51, so as to complete the water sample collection of the corresponding depth. After reaching a certain depth, the stepper motor is started again, and the stepper motor drives the second collecting cylinder 14 to continue to rotate. The second collecting cylinder 14 drives the protruding plate 131 at the bottom to rotate, so that the protruding plate 131 slides along the embedded groove 132, and drives the first collecting cylinder 13 to rotate as a whole when the protruding plate 131 moves to one end. When the water inlet at the corresponding first collecting cylinder 13 reaches the water guide port 51 at the sampling cover 5, the liquid sampling is continued, and the subsequent sampling of groundwater at different depths can be carried out to avoid the need for multiple collections when sampling groundwater at different depths as much as possible.

[0038] In this embodiment, a sampling chamber is provided inside the first collecting tube 13, a drainage hole is provided at the bottom of the sampling chamber, a sealing assembly 18 for auxiliary sealing is installed at the drainage hole, the sealing assembly 18 includes a cross-shaped sealing frame 19, a sliding rod 20 is installed on the sealing frame 19, a sealing disk 22 is installed at the bottom of the sliding rod 20, and a pushing spring 21 pushed by the auxiliary sealing disk 22 is installed on the sliding rod 20.

[0039] Through the provided sealing assembly 18, the sealing disk 22 is pushed upward, driving the push spring 21 to be compressed as a whole. At this time, the drain port is opened, and the liquid collected inside the first collecting tube 13 is discharged as a whole. After the discharge is completed, the sealing disk 22 is pushed and pressed against the drain port under the action of the compressed push spring 21, which can ensure the overall sealing of the collecting tube after sampling.

[0040] As an implementation method in this embodiment, refer to Figure 2 and Figure 4 As shown, a slot 52 is symmetrically provided at the bottom of the sampling cover 5, and an insert block 61 is protrudingly provided at the outer edge of the chassis 6. The slot 52 and the insert block 61 are plugged in cooperation with each other. Plug holes 53 are symmetrically provided on both sides of the water guide port 51. A positioning cavity is provided inside the chassis 6, and a positioning assembly 7 for auxiliary positioning is installed in the positioning cavity. The positioning assembly 7 includes a winding disk 10 rotatably arranged at the center of the chassis 6, and latches 9 are symmetrically and slidably provided on both sides of the insert block 61. The latch 9 is plugged in cooperation with the insert block 61. A push-out spring 8 pushed by the auxiliary latch 9 is installed inside the insert block 61, and the latch 9 and the winding disk 10 are connected by a connecting belt 11.

[0041] By setting the sampling cover 5, the chassis 6 and the positioning assembly 7 inside the chassis 6, the winding disk 10 is flipped, and the winding disk 10 drives the connecting belt 11 to rotate, and then the connecting belt 11 drives the latch 9 to move as a whole, and then the ejection spring 8 is compressed as a whole, which can ensure that the sampling cover 5 can form a whole in the working state, and facilitate the quick disassembly of the chassis 6 after the subsequent work is completed.

[0042] The technical solution provided by the utility model is:

[0043] During operation, when it is necessary to sample groundwater, the first collecting tube 13 and the first collecting tube 13 are overlapped in sequence and placed on the top of the chassis 6 to fit the plug block 61 with the water guide port 51, so that the positioning assembly 7 is plugged and installed in the slot 52, so that the chassis 6 is snap-fitted and fixed at the bottom of the sampling cover 5.

[0044] Place the sampling assembly 4 at the position where sampling is required, start the stepper motor, and the stepper motor drives the second collecting cylinder 14 on the top to rotate a certain angle, so that the water inlet on the second collecting cylinder 14 is connected to the water guide port 51, thereby completing the water sample collection at the corresponding depth. After reaching a certain depth, continue to start the stepper motor, and the stepper motor drives the second collecting cylinder 14 to continue to rotate. The second collecting cylinder 14 drives the protruding plate 131 at the bottom to rotate, so that the protruding plate 131 slides along the embedded groove 132, and drives the first collecting cylinder 13 to rotate as a whole when the protruding plate 131 moves to one end. When the water inlet at the corresponding first collecting cylinder 13 reaches the water guide port 51 at the sampling cover 5, the liquid sampling is continued, and how to conduct subsequent sampling at different groundwater heights.

[0045] When the sampled water needs to be poured out after sampling, the winding disk 10 is turned over, and the winding disk 10 drives the connecting belt 11 to rotate, and then the connecting belt 11 drives the latch 9 to move as a whole, so that the pushing spring 8 is compressed as a whole. When draining water, the sealing disk 22 is pushed upward to drive the pushing spring 21 to be compressed as a whole. At this time, the drain port is opened, and the liquid collected in the first collecting cylinder 13 is discharged as a whole. After the discharge is completed, the sealing disk 22 is pushed and pressed onto the drain port under the action of the compressed pushing spring 21.

[0046] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A groundwater sampling device, characterized in that: The sampling assembly comprises a long strip sampling cover, a chassis is installed at the bottom of the sampling cover, water guide ports are equidistantly opened at the outer edge of the sampling cover, a receiving cavity is arranged inside the sampling cover, and a collection assembly for auxiliary sampling is installed in the receiving cavity; The collecting assembly comprises a first collecting cylinder and a second collecting cylinder, a rotating shaft is protrudingly provided at the top of the chassis and the first collecting cylinder, a rotating groove is drilled at the bottom of the first collecting cylinder and the second collecting cylinder, a liquid inlet is provided at the outer edge of the first collecting cylinder and the second collecting cylinder near the top, a duckbill valve is installed at the liquid inlet, the liquid inlet is communicated with the water guide port, an arc-shaped embedding groove is provided at the top of the first collecting cylinder and the second collecting cylinder, a protruding plate is protrudingly provided at the bottom of the first collecting cylinder and the second collecting cylinder, the protruding plate slides in cooperation with the embedding groove, and a stepping motor for assisting the rotation of the collecting assembly is installed at the inner top of the accommodating cavity.

2. The groundwater sampling device according to claim 1, characterized in that: A cross-shaped positioning slot is provided at the top of the second collecting cylinder, and a cross-shaped positioning tooth is provided at the front end of the shaft of the stepping motor, and the positioning tooth is plugged in with the positioning slot.

3. The groundwater sampling device according to claim 1, characterized in that: A sampling cavity is provided inside the first collecting tube, a drainage hole is provided at the bottom of the sampling cavity, and a sealing component for auxiliary sealing is installed at the drainage hole.

4. The groundwater sampling device according to claim 3, characterized in that: The sealing assembly comprises a cross-shaped sealing frame, a sliding rod is installed on the sealing frame, a sealing disk is installed at the bottom of the sliding rod, and a pushing spring for assisting the sealing disk to push is installed on the sliding rod.

5. The groundwater sampling device according to claim 1, characterized in that: The bottom of the sampling cover is symmetrically provided with slots, and the outer edge of the chassis is protrudingly provided with plug-in blocks, and the slots and the plug-in blocks are plugged in a matching manner.

6. The groundwater sampling device according to claim 5, characterized in that: Insertion holes are symmetrically provided on both sides of the water guide port, a positioning cavity is provided inside the chassis, and a positioning component for auxiliary positioning is installed in the positioning cavity.

7. The groundwater sampling device according to claim 6, characterized in that: The positioning assembly includes a winding disk rotatably arranged at the center of the chassis, and latches are symmetrically and slidably arranged on both sides of the plug block. The latches are plugged into the sockets, and a push-out spring is installed inside the plug block to assist the latch in pushing the push-out spring. The latches are connected to the winding disk by a connecting belt.

8. The groundwater sampling device according to claim 1, characterized in that: A pull ring is installed at the top of the sampling component, a connecting rope is tied to the pull ring, and the connecting rope is wound on a winding shaft.

9. The groundwater sampling device according to claim 8, characterized in that: The winding shaft is installed on a bracket, and a winding motor for driving the winding shaft to rotate is installed on the bracket.

10. The groundwater sampling device according to claim 8, characterized in that: The connecting rope is engraved with scale lines, and the zero scale line of the connecting rope is located at one end close to the pull ring.

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