Hydraulic ring geological survey sampling equipment

Abstract

The utility model relates to the technical field of geological survey, and discloses hydraulic ring geological survey sampling equipment which comprises a drilling pipe, a drill bit is arranged at the bottom of the drilling pipe, a sampling rotary disc is rotationally arranged in the drilling pipe, and a plurality of L-shaped water guide grooves are formed in the middle of the sampling rotary disc. The plurality of L-shaped water guide grooves are formed in the sampling turntable in an annular array. According to the hydraulic ring geological survey sampling equipment, a first threaded mounting ring is mounted in the inner wall of one end of an L-shaped water guide groove in a threaded manner, so that a corresponding liquid storage cylinder can be stably mounted at an outlet of the L-shaped water guide groove, stable connection is formed between the liquid storage cylinder and the L-shaped water guide groove, stable connection between the liquid storage cylinder and the L-shaped water guide groove is achieved, and the working efficiency is improved. The water sample conveyed through the L-shaped water guide groove can completely enter the corresponding liquid storage cylinder, leakage between the L-shaped water guide groove and the corresponding liquid storage cylinder is avoided, and the sampling accuracy of water bodies of different depths is improved.

Description

Technical Field

[0001] This application relates to the field of geological exploration technology, specifically a hydrogeological and environmental geological exploration sampling device. Background Technology

[0002] Hydrogeology and environmental geology refer to hydrogeology, engineering geology, and environmental geology. Hydrogeology is the science that studies groundwater, engineering geology is the science that investigates, studies, and solves geological problems related to human activities and various engineering constructions, and environmental geology studies problems such as landslides, debris flows, land subsidence, and urban geology. When conducting hydrogeological and environmental geological surveys, groundwater testing is inevitable, which requires the use of sampling equipment to collect groundwater samples.

[0003] An existing patent (publication number: CN216791731U) discloses a sampling device for hydrogeological and environmental exploration, which solves the problem in existing technologies where, when sampling water at different depths is required, the drill bit must be removed, the sample taken, and then water samples taken again at different depths. This method cannot be used for continuous sampling, wastes time, and reduces sampling efficiency. The hydrogeological and environmental exploration sampling device includes a drill pipe with a drill bit at its lower end. A sealing plug is slidably connected inside the drill pipe. A water inlet is located at the right end of the drill pipe. A fixing plate is fixedly connected inside the drill pipe, and a transmission mechanism for opening the water inlet is provided on the fixing plate. A transfer pipe is located at the lower end of the drill pipe and is fixedly connected to the drill bit. This invention can store groundwater at different depths, enabling sampling of groundwater at different depths in a single drilling operation, thus improving sampling efficiency.

[0004] When the above scheme delivers water into the storage tank through the L-shaped water guide channel, there is a certain gap between the L-shaped water guide channel and the storage tank. This causes the water sample delivered through the L-shaped water guide channel to not completely enter the corresponding storage tank, and the water sample may enter other storage tanks through the inside of the drilling pipe, affecting the accuracy of sampling water at different depths. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a hydrogeological and environmental geological exploration sampling device. This device enables a stable connection between the storage tank and the L-shaped water guide channel, allowing water samples transported through the L-shaped water guide channel to completely enter the corresponding storage tank. This prevents leakage between the L-shaped water guide channel and the corresponding storage tank, improving the accuracy of sampling water at different depths. It also solves the problem that when water is transported through the L-shaped water guide channel to the storage tank, a certain gap exists between the L-shaped water guide channel and the storage tank, preventing the water samples from completely entering the corresponding storage tank. Furthermore, water samples may enter other storage tanks through the drilling pipe, affecting the accuracy of sampling water at different depths.

[0006] To achieve the aforementioned goal of ensuring a stable connection between the storage tank and the L-shaped water guide channel, allowing water samples transported through the L-shaped water guide channel to completely enter the corresponding storage tank and preventing leakage between the L-shaped water guide channel and the corresponding storage tank, thereby improving the accuracy of sampling water bodies at different depths, this application provides the following technical solution: a hydrogeological exploration sampling device, comprising a drill pipe, a drill bit at the bottom of the drill pipe, a sampling turntable rotatably mounted inside the drill pipe, and multiple L-shaped water guide channels formed in the center of the sampling turntable. L-shaped water guide channels are arranged in a circular array on the sampling turntable. The bottom of the sampling turntable is equipped with a liquid storage cylinder corresponding to the number and position of the L-shaped water guide channels. One end of the liquid storage cylinder is provided with a first threaded mounting ring. The outer surface of the first threaded mounting ring at one end of the liquid storage cylinder is threaded to the inner wall of one end of the L-shaped water guide channel. A water inlet corresponding to the horizontal height of the inlet of the L-shaped water guide channel is opened on one side of the drilling pipe. The top of the sampling turntable is fixedly connected to one end of the motor shaft. The motor is set in the inner wall of the drilling pipe through a fixing bracket.

[0007] The above solution allows for the stable installation of the corresponding liquid storage cylinder at the outlet of the L-shaped water guide channel by threading the first threaded mounting ring inside the inner wall of one end of the channel. This creates a stable connection between the liquid storage cylinder and the L-shaped water guide channel, ensuring that the water sample transported through the L-shaped water guide channel can completely enter the corresponding liquid storage cylinder. This prevents leakage between the L-shaped water guide channel and the corresponding liquid storage cylinder, improving the accuracy of sampling water at different depths.

[0008] Furthermore, the drilling pipe includes a first pipe body and a second pipe body, the second pipe body is located below the first pipe body, and a second threaded mounting ring is provided at the top of the second pipe body, the second threaded mounting ring being threadedly connected to the inner wall of one end of the first pipe body.

[0009] With the above scheme, the drilling pipe adopts a split design. The first pipe body and the second pipe body are connected by a second threaded mounting ring, which facilitates the assembly and disassembly of the drilling pipe. The second pipe body can be easily removed from the first pipe body, and the liquid storage cylinder after sampling inside the drilling pipe can be easily removed.

[0010] Furthermore, a second sealing gasket is provided on the ladder-like platform on one end of the inner wall of the first tube body. The second sealing gasket is located between the ladder-like platform on one end of the inner wall of the first tube body and the end face of the second threaded mounting ring.

[0011] The above solution enhances the sealing performance at the connection between the first and second pipe bodies, preventing external water or other impurities from entering the drilling pipe through the connection between the first and second pipe bodies during drilling.

[0012] Furthermore, a positioning ring is provided inside the inner wall of the L-shaped water guide channel, and a first sealing gasket is provided at the bottom of the positioning ring. The first sealing gasket is located between the first threaded mounting ring and the positioning ring.

[0013] The above design facilitates the positioning and installation of the first threaded mounting ring within the L-shaped water guide groove, ensuring accurate alignment between the storage cylinder and the L-shaped water guide groove. The first sealing gasket further enhances the sealing at the connection between the storage cylinder and the L-shaped water guide groove, effectively preventing water sample leakage and ensuring complete entry of the water sample into the corresponding storage cylinder, thus improving sampling accuracy.

[0014] Furthermore, two limiting rings are provided on the inner wall of the middle part of the first tube body. The two limiting rings are located above and below the sampling turntable, respectively, and the opposite sides of the two limiting rings are slidably connected to the outer surfaces of the top and bottom edges of the sampling turntable.

[0015] Through the above scheme, the two limiting rings play a limiting and supporting role for the sampling turntable, ensuring that the sampling turntable can rotate stably inside the drilling pipe, avoiding shaking or displacement of the sampling turntable during rotation, which would affect the docking accuracy of the L-shaped water guide channel and the water inlet, and thus ensuring the smooth progress of the sampling work.

[0016] Furthermore, a sealing ring is provided on the outer surface of the middle part of the sampling turntable. The sealing ring is located between the sampling turntable and the inner wall of the first tube. The sealing ring has a through hole corresponding to the inlet of the L-shaped water guide groove.

[0017] The above solution enhances the sealing between the sampling turntable and the inner wall of the first tube, preventing water samples from leaking through the gap between the sampling turntable and the inner wall of the first tube. At the same time, the through hole on the sealing ring corresponding to the inlet of the L-shaped water guide groove ensures the normal connection between the L-shaped water guide groove and the inlet, allowing the water sample to smoothly enter the L-shaped water guide groove.

[0018] Furthermore, the inner wall of the sealing ring is provided with a plurality of positioning strips, which are slidably disposed within the inner wall of a plurality of positioning grooves. The plurality of positioning grooves are arranged in a ring array on the outer surface of the middle part of the sampling turntable, and the positions of the plurality of positioning strips correspond to the positions of the plurality of positioning grooves.

[0019] The above scheme, through the combined use of positioning strips and positioning grooves, enables accurate installation and positioning of the sealing ring on the sampling turntable, ensuring that the through hole on the sealing ring precisely corresponds to the inlet of the L-shaped water guide channel, while enhancing the connection stability between the sealing ring and the sampling turntable, and preventing relative displacement of the sealing ring during the rotation of the sampling turntable.

[0020] Furthermore, the positioning strip and positioning groove are positioned in the same direction as the axial direction of the sampling turntable.

[0021] With the above scheme, the positioning strip and positioning groove are set along the axial direction of the sampling turntable, which makes the installation and disassembly of the sealing ring more convenient. The installation or disassembly operation can be completed simply by pushing or pulling along the axial direction of the sampling turntable. At the same time, the setting direction of the positioning strip and positioning groove can further prevent the sealing ring from being relatively displaced during the rotation of the sampling turntable.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This hydrogeological exploration and sampling device uses a first threaded mounting ring threaded into the inner wall of one end of an L-shaped water guide channel to stably install a corresponding liquid storage cylinder at the outlet of the L-shaped water guide channel. This creates a stable connection between the liquid storage cylinder and the L-shaped water guide channel, ensuring that water samples transported through the L-shaped water guide channel can completely enter the corresponding liquid storage cylinder. This prevents leakage between the L-shaped water guide channel and the corresponding liquid storage cylinder, improving the accuracy of sampling water bodies at different depths. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of this application;

[0025] Figure 2 This is a three-dimensional sectional view of the structure of this application;

[0026] Figure 3 This is a schematic cross-sectional view of the structure on the right side of this application;

[0027] Figure 4 This is an exploded view of the internal structure of the drill pipe in this application;

[0028] Figure 5 This is an exploded structural diagram of the drill pipe in this application;

[0029] Figure 6 This is a top-view cross-sectional structural diagram of the sampling turntable of this application.

[0030] In the picture:

[0031] 1. Drill pipe; 101. First pipe body; 102. Second pipe body; 2. Drill bit; 3. Sampling turntable; 4. L-shaped water guide groove; 5. Liquid storage tank; 6. Water inlet; 7. First threaded mounting ring; 8. Motor; 9. Positioning ring; 10. First sealing gasket; 11. Limiting ring; 12. Second threaded mounting ring; 13. Second sealing gasket; 14. Sealing ring; 15. Positioning strip; 16. Positioning groove. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Please see Figure 1 , Figure 2 and Figure 4 This embodiment of a hydrogeological exploration and sampling device includes a drilling pipe 1, a drill bit 2 at the bottom of the drilling pipe 1, a sampling turntable 3 rotating inside the drilling pipe 1, multiple L-shaped water guide channels 4 in the middle of the sampling turntable 3, the multiple L-shaped water guide channels 4 arranged in a ring array on the sampling turntable 3, a liquid storage cylinder 5 corresponding to the number and position of the L-shaped water guide channels 4 installed at the bottom of the sampling turntable 3, a first threaded mounting ring 7 at one end of the liquid storage cylinder 5, the outer surface of the first threaded mounting ring 7 at one end of the liquid storage cylinder 5 being threadedly connected to the inner wall of one end of the L-shaped water guide channel 4, a water inlet 6 corresponding to the horizontal height of the inlet of the L-shaped water guide channel 4 on one side of the drilling pipe 1, and a motor shaft 8 fixedly connected to the top of the sampling turntable 3, the motor 8 being mounted on the inner wall of the drilling pipe 1 through a fixing bracket.

[0034] Please see Figure 1 , Figure 3 and Figure 5 The drilling pipe 1 includes a first pipe body 101 and a second pipe body 102. The second pipe body 102 is located below the first pipe body 101. A second threaded mounting ring 12 is provided on the top of the second pipe body 102. The second threaded mounting ring 12 is threadedly connected to the inner wall of one end of the first pipe body 101. The drilling pipe 1 adopts a split design. The first pipe body 101 and the second pipe body 102 are threadedly connected by the second threaded mounting ring 12, which facilitates the assembly and disassembly of the drilling pipe 1. The second pipe body 102 can be easily removed from the first pipe body 101, and the liquid storage cylinder 5 after sampling inside the drilling pipe 1 can be easily removed.

[0035] Please see Figure 2 , Figure 3 and Figure 5 A second sealing gasket 13 is provided on the stepped platform of the inner wall of one end of the first pipe body 101. The second sealing gasket 13 is located between the stepped platform of the inner wall of one end of the first pipe body 101 and the end face of the second threaded mounting ring 12. The provision of the second sealing gasket 13 can enhance the sealing performance at the connection between the first pipe body 101 and the second pipe body 102, and prevent external water or other impurities from entering the drill pipe 1 through the connection between the first pipe body 101 and the second pipe body 102 during the drilling process.

[0036] Please see Figure 2 , Figure 3 and Figure 4 A positioning ring 9 is provided inside the inner wall of the L-shaped water guide channel 4, and a first sealing gasket 10 is provided at the bottom of the positioning ring 9. The first sealing gasket 10 is located between the first threaded mounting ring 7 and the positioning ring 9. The positioning ring 9 facilitates the positioning and installation of the first threaded mounting ring 7 within the L-shaped water guide channel 4, ensuring accurate connection between the liquid storage cylinder 5 and the L-shaped water guide channel 4. The first sealing gasket 10 further enhances the sealing performance at the connection between the liquid storage cylinder 5 and the L-shaped water guide channel 4, effectively preventing water sample leakage from the connection and ensuring that the water sample can completely enter the corresponding liquid storage cylinder 5, thereby improving sampling accuracy.

[0037] Please see Figure 2 , Figure 3 and Figure 4 Two limiting rings 11 are provided on the inner wall of the middle part of the first pipe body 101. The two limiting rings 11 are located above and below the sampling turntable 3, respectively. The opposite sides of the two limiting rings 11 are slidably connected to the outer surface of the top and bottom edges of the sampling turntable 3, respectively. The two limiting rings 11 play a limiting and supporting role for the sampling turntable 3, ensuring that the sampling turntable 3 can rotate stably in the drilling pipe 1, avoiding shaking or displacement of the sampling turntable 3 during rotation, which would affect the docking accuracy of the L-shaped water guide channel 4 and the water inlet 6, thereby ensuring the smooth progress of the sampling work.

[0038] Please see Figure 2 , Figure 3 and Figure 4 A sealing ring 14 is provided on the outer surface of the middle part of the sampling turntable 3. The sealing ring 14 is located between the sampling turntable 3 and the inner wall of the first tube 101. The sealing ring 14 has a through hole corresponding to the inlet of the L-shaped water guide groove 4. The setting of the sealing ring 14 can enhance the sealing between the sampling turntable 3 and the inner wall of the first tube 101, and prevent water sample from leaking from the gap between the sampling turntable 3 and the inner wall of the first tube 101. At the same time, the through hole on the sealing ring 14 corresponding to the inlet of the L-shaped water guide groove 4 can ensure the normal connection between the L-shaped water guide groove 4 and the water inlet 6, so that the water sample can smoothly enter the L-shaped water guide groove 4.

[0039] Please see Figure 4 and Figure 6 The inner wall of the sealing ring 14 is provided with multiple positioning strips 15, which are slidably disposed within the inner wall of multiple positioning grooves 16. The multiple positioning grooves 16 are arranged in a ring array on the outer surface of the middle part of the sampling turntable 3. The positions of the multiple positioning strips 15 and the multiple positioning grooves 16 correspond to each other. The cooperation of the positioning strips 15 and the positioning grooves 16 enables the accurate installation and positioning of the sealing ring 14 on the sampling turntable 3, ensuring that the through hole on the sealing ring 14 corresponds precisely to the inlet of the L-shaped water guide channel 4. At the same time, it enhances the connection stability between the sealing ring 14 and the sampling turntable 3, preventing the sealing ring 14 from undergoing relative displacement during the rotation of the sampling turntable 3.

[0040] Please see Figure 4 and Figure 6 The positioning strip 15 and positioning groove 16 are set in the same direction as the axial direction of the sampling turntable 3. The positioning strip 15 and positioning groove 16 are set along the axial direction of the sampling turntable 3, which makes the sealing ring 14 easier to install and remove. The installation or removal operation can be completed by simply pushing or pulling along the axial direction of the sampling turntable 3. At the same time, the setting direction of the positioning strip 15 and positioning groove 16 can further prevent the sealing ring 14 from being relatively displaced during the rotation of the sampling turntable 3.

[0041] In this embodiment, a hydrogeological exploration and sampling device uses a first threaded mounting ring 7 threadedly installed inside the inner wall of one end of an L-shaped water guide channel 4. This allows the corresponding liquid storage cylinder 5 to be stably installed at the outlet of the L-shaped water guide channel 4, forming a stable connection between the liquid storage cylinder 5 and the L-shaped water guide channel 4. This ensures that the water sample transported through the L-shaped water guide channel 4 can completely enter the corresponding liquid storage cylinder 5, preventing leakage between the L-shaped water guide channel 4 and the corresponding liquid storage cylinder 5. This improves the accuracy of sampling water bodies at different depths.

[0042] The working principle of the above embodiment is as follows: During hydrogeological exploration and sampling, the motor 8 operates, driving the sampling turntable 3 to rotate, causing the inlet of the L-shaped water guide channel 4 to be misaligned with the inlet 6. This prevents impurities from entering the L-shaped water guide channel 4 through the inlet 6 during drilling. The drill pipe 1 is drilled into the target underground water body depth through the drill bit 2. The motor 8 operates, driving the sampling turntable 3 to rotate, causing the L-shaped water guide channel 4 to rotate to correspond with the inlet 6. The water sample enters the corresponding L-shaped water guide channel 4 through the inlet 6, and then enters the corresponding storage cylinder 5 for collection. After the storage cylinder 5 has finished sampling, the motor 8 operates, driving the sampling turntable 3 to rotate, and once again aligning the inlet of the L-shaped water guide channel 4 with the inlet 6. The position of the water inlet 6 is misaligned, and the drilling pipe 1 continues to penetrate deeper, moving to the next sampling depth. The motor 8 works, driving the sampling turntable 3 to rotate. The L-shaped water guide trough 4 corresponding to the unsampled liquid storage cylinder 5 is rotated to the position corresponding to the water inlet 6 in sequence. The liquid storage cylinder 5 is sampled through the water inlet 6 and the L-shaped water guide trough 4. After sampling is completed for all liquid storage cylinders 5, the drilling pipe 1 is moved to the ground. The second pipe body 102 is rotated, and the second pipe body 102 is removed from the first pipe body 101 through the second threaded mounting ring 12, exposing the liquid storage cylinder 5 inside the first pipe body 101. The liquid storage cylinder 5 is rotated, and the liquid storage cylinder 5 is removed from the sampling turntable 3 through the first threaded mounting ring 7, and the water sample inside the liquid storage cylinder 5 is collected.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogeological exploration and sampling device, comprising a drilling pipe (1), characterized in that: The bottom of the drilling pipe (1) is provided with a drill bit (2). The inside of the drilling pipe (1) is provided with a sampling turntable (3). The middle of the sampling turntable (3) is provided with multiple L-shaped water guide grooves (4). The multiple L-shaped water guide grooves (4) are arranged in a ring array on the sampling turntable (3). The bottom of the sampling turntable (3) is provided with a liquid storage cylinder (5) corresponding to the number and position of the L-shaped water guide grooves (4). One end of the liquid storage cylinder (5) is provided with a first threaded mounting ring (7). The outer surface of the first threaded mounting ring (7) at one end of the liquid storage cylinder (5) is threaded to the inner wall of one end of the L-shaped water guide groove (4). One side of the drilling pipe (1) is provided with a water inlet (6) corresponding to the horizontal height of the inlet of the L-shaped water guide groove (4). The top of the sampling turntable (3) is fixedly connected to one end of the motor shaft of the motor (8). The motor (8) is set in the inner wall of the drilling pipe (1) through a fixing bracket.

2. The hydrogeological and environmental geological exploration and sampling equipment according to claim 1, characterized in that: The drilling pipe (1) includes a first pipe body (101) and a second pipe body (102). The second pipe body (102) is located below the first pipe body (101). A second threaded mounting ring (12) is provided on the top of the second pipe body (102). The second threaded mounting ring (12) is threadedly connected to the inner wall of one end of the first pipe body (101).

3. The hydrogeological and environmental geological exploration and sampling equipment according to claim 2, characterized in that: A second sealing gasket (13) is provided on the ladder of the inner wall of one end of the first tube (101). The second sealing gasket (13) is located between the ladder of the inner wall of one end of the first tube (101) and the end face of the second threaded mounting ring (12).

4. The hydrogeological and environmental geological exploration and sampling equipment according to claim 1, characterized in that: The inner wall of the L-shaped water guide groove (4) is provided with a positioning ring (9), and the bottom of the positioning ring (9) is provided with a first sealing gasket (10), which is located between the first threaded mounting ring (7) and the positioning ring (9).

5. The hydrogeological and environmental geological exploration and sampling equipment according to claim 2, characterized in that: Two limiting rings (11) are provided on the inner wall of the middle part of the first tube body (101). The two limiting rings (11) are located above and below the sampling turntable (3) respectively. The opposite sides of the two limiting rings (11) are slidably connected to the outer surface of the top and bottom edges of the sampling turntable (3) respectively.

6. The hydrogeological and environmental geological exploration and sampling equipment according to claim 1, characterized in that: A sealing ring (14) is provided on the outer surface of the middle part of the sampling turntable (3). The sealing ring (14) is located between the sampling turntable (3) and the inner wall of the first tube (101). The sealing ring (14) has a through hole corresponding to the inlet of the L-shaped water guide groove (4).

7. The hydrogeological and environmental geological exploration sampling equipment according to claim 6, characterized in that: The inner wall of the sealing ring (14) is provided with a plurality of positioning strips (15), which are slidably disposed in the inner wall of a plurality of positioning grooves (16). The plurality of positioning grooves (16) are arranged in a ring array on the outer surface of the middle part of the sampling turntable (3), and the positions of the plurality of positioning strips (15) and the plurality of positioning grooves (16) correspond to each other.

8. The hydrogeological and environmental geological exploration and sampling equipment according to claim 7, characterized in that: The positioning strip (15) and positioning groove (16) are set in the same direction as the axial direction of the sampling turntable (3).

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