Mine hydrological observation water sample extraction device

Abstract

The invention provides a mine hydrological observation water sample extraction device capable of sampling different water layers and avoiding mixing of substances among the different water layers, and in order to solve the technical problem, the following technical scheme is provided: the device comprises a sampling cylinder, a bearing frame is coaxially and rotatably connected in the sampling cylinder, and the bearing frame is rotatably connected with the sampling cylinder; the bearing frame is detachably connected with water storage pipes, each water storage pipe is internally and slidably connected with a water pumping piece in the axial direction, the upper end of the sampling barrel is coaxially and rotatably connected with a threaded rod, the threaded rod is in threaded connection with a pushing piece, and the pushing piece is slidably connected in the axis direction of the sampling barrel and pushes the water pumping pieces; a filter ring is rotationally connected to the lower end of the sampling cylinder corresponding to the sampling cylinder, and is detachably connected with the lower end of the bearing frame.

Description

Technical Field

[0001] The present invention relates to the technical field of mine hydrogeology. Specifically, it is a device for extracting water samples for mine hydrogeological observation. Background Art

[0002] During the mining process of minerals, since the minerals are buried deep underground, it is necessary to keep the mining area watertight during the mining process, and at the same time, it is necessary to avoid waterlogging and flooding in the mining area. Therefore, it is necessary to detect the groundwater in the mining area and its surrounding areas. The places that need to be detected are generally the drilled wells and the groundwater channels opened by the drilled wells. At the same time, it is necessary to sample the geological water to facilitate the analysis of the hydrogeology and whether there is waterlogging and leakage during the mining process.

[0003] During the sampling process, since the sampled areas often contain a large amount of sediment and debris, and at the same time, the existing sampling equipment cannot accurately sample each water layer simultaneously, and it is necessary to ensure that the water samples at the sampling site do not contain substances from other water layers. It is necessary to avoid clogging the filter screen during the sampling of the water layer containing impurities, which may affect the sampling results of other water layers when continuing to sample other water layers. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to provide a device for extracting water samples for mine hydrogeological observation that can sample different water layers while avoiding the mixing of substances between different water layers.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A device for extracting water samples for mine hydrogeological observation includes a sampling cylinder. A carrier frame is coaxially and rotatably connected inside the sampling cylinder. A water storage pipe is detachably connected to the carrier frame. A water pumping member is slidably connected along the axial direction inside each water storage pipe. A threaded rod is coaxially and rotatably connected to the upper end of the sampling cylinder. A pushing piece is threadedly connected to the threaded rod. The pushing piece is slidably connected along the axis of the sampling cylinder and pushes the water pumping member. A filter ring is rotatably connected to the position corresponding to the lower end of the sampling cylinder. The filter ring is detachably connected to the lower end of the carrier frame.

[0007] Preferably, there are multiple water storage pipes, which are circumferentially and evenly distributed on the carrier frame. A sliding groove is opened on the side surface of the upper end of the water storage pipe facing the axis of the sampling cylinder. The upper end of the water pumping member extends out of the sliding groove.

[0008] Preferably, an inner support cylinder is coaxially and rotatably connected to the upper end of the sampling cylinder. The threaded rod is coaxially and rotatably connected inside the inner support cylinder. A notch is opened on the side surface of the inner support cylinder. The pushing piece extends out from the notch and corresponds to the part of the water pumping member extending out of the sliding groove.

[0009] Preferably, a first driving gear arranged coaxially is fixedly connected to the upper end of the threaded rod, and a second driving gear sleeved on the inner support cylinder is fixedly connected to the upper end of the carrier. The first driving gear and the second driving gear are respectively connected to a driving motor.

[0010] Preferably, an upper closing cover is provided at the upper end of the sampling cylinder. Two driving motors are fixedly connected to the upper closing cover. The rotating shafts of the driving motors respectively extend downward, and the extending ends of the rotating shafts of the driving motors are respectively fixedly connected with mating gears. The first driving gear and the second driving gear are respectively meshed with the corresponding mating gears.

[0011] Preferably, a lower closing cover is provided at the lower end of the sampling cylinder. A sampling inlet is provided at a position corresponding to the pushing piece on the lower closing cover.

[0012] Preferably, a square connecting block extends downward along the axis direction of the carrier at the lower end of the carrier. The square connecting block passes through the lower closing cover and extends downward.

[0013] Preferably, the filter ring is annular. A plurality of sector-shaped filter meshes are evenly distributed on the circumference of the filter ring. A square connecting port is provided at the center of the circle of the filter ring. The extending end of the square connecting block is matched with the square connecting port.

[0014] Preferably, it further includes an anti-collision protection shell located at the lower end of the lower closing cover. The anti-collision protection shell includes a circular shell. A hemispherical anti-collision net is fixedly connected to the lower end of the circular shell. Support legs extending obliquely downward are provided on the outer circumference of the circular shell. A water inlet is opened at a position corresponding to the sampling inlet on the circular shell.

[0015] Preferably, a positioning groove is opened on the upper closing cover. A positioning guide rod matched with the positioning groove is fixedly connected to the upper end of the sampling cylinder.

[0016] The technical solution of the present invention has achieved the following beneficial technical effects:

[0017] 1. It can sample different water layers separately during a single sampling process;

[0018] 2. The sampled samples can be independently stored separately to avoid sample mixing;

[0019] 3. The filtering structure is automatically replaced during the sampling process of different water layers to avoid impurities in different water layers from clogging the filter mesh and affecting the sampling accuracy;

[0020] 4. The sampling process is automated, and the samples are classified and stored after sampling. At the same time, it can avoid damage to the sampling equipment by the side wall and bottom of the drilling well. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a sectional view of the sampling cylinder of the present invention;

[0023] Figure 3 This is the internal structure diagram of the sampling cylinder of the present invention;

[0024] Figure 4 This is the second perspective of the overall structure schematic diagram of the present invention;

[0025] Figure 5 This is a partial sectional view of the sampling cylinder of the present invention;

[0026] Figure 6 This is the structure diagram of the upper closing cover of the present invention;

[0027] Figure 7 This is the disassembled diagram of the internal structure of the sampling cylinder of the present invention;

[0028] Figure 8 This is the second perspective of the disassembled diagram of the internal structure of the sampling cylinder of the present invention;

[0029] Figure 9 This is the connection diagram of the lower closing cover and the filter ring of the present invention;

[0030] Figure 10 This is the disassembled diagram of the connection structure of the lower closing cover of the present invention.

[0031] The reference numerals in the figure are represented as: 1. Sampling cylinder; 2. Carrier; 3. Water storage pipe; 4. Water pumping member; 5. Threaded rod; 6. Pushing piece; 7. Filter ring; 8. Sliding groove; 9. Inner support cylinder; 10. First driving gear; 11. Second driving gear; 12. Upper closing cover; 13. Matching gear; 14. Lower closing cover; 15. Sampling inlet; 16. Square connecting block; 17. Sector-shaped filter screen; 18. Square connecting port; 19. Anti-collision protection shell; 20. Hemispherical anti-collision net; 21. Support leg; 22. Water inlet; 23. Positioning slot; 24. Positioning guide rod. Detailed implementation manners

[0032] This embodiment will be described in detail with reference to the accompanying drawings.

[0033] In use, first select the sampling cylinder 1 with different numbers of sampling tubes according to the number of samplings required, so that the water storage pipes 3 in the sampling cylinder 1 are consistent with the number of water layers to be sampled. Before use, install the corresponding number of water storage pipes 3 in the sampling cylinder 1. A water pumping member 4 is slidably connected along the axial direction in each water storage pipe 3. The lower end of the water pumping member 4 is hermetically slidably connected to the inner wall of the water storage pipe 3. A sliding groove 8 is formed in the side surface of the upper end of the water storage pipe 3, and the upper end of the water pumping member 4 passes through the sliding groove 8 and extends outwards. During the installation of each water storage pipe 3, the sliding grooves 8 on each water storage pipe 3 are arranged towards the axis direction of the sampling cylinder 1. A carrier 2 is rotatably connected coaxially in the sampling cylinder 1. The upper and lower ends of the carrier 2 are respectively of a disc-shaped structure and correspond to the upper and lower ends of the sampling cylinder 1. A plurality of notches for clamping the water storage pipes 3 are respectively formed at the upper and lower ends of the carrier 2. Each notch is circumferentially distributed at the upper and lower ends of the carrier 2 and is correspondingly arranged. The notch at the upper end of the carrier 2 is arranged in a through manner. A limiting piece for preventing the water storage pipe 3 from protruding excessively is provided at the lower end of the notch at the lower end of the carrier 2. After each water storage pipe 3 is installed respectively, the water pumping members 4 in each water storage pipe 3 are all located at the lower end of the water storage pipe 3, and the lower end of the water storage pipe 3 is the part where water enters the water storage pipe 3 during the sampling process.

[0034] An inner support cylinder 9 arranged coaxially extends downward from the upper end of the sampling cylinder 1. The upper end of the inner support cylinder 9 is fixedly connected to the sampling cylinder 1. A threaded rod 5 is rotatably connected coaxially to the upper end of the inner support cylinder 9. The threaded rod 5 extends downward. A notch is formed in the side surface of the inner support cylinder 9. A pushing piece 6 is slidably connected vertically in the inner support cylinder 9. The pushing piece 6 is threadedly connected to the threaded rod 5. By rotating the threaded rod 5, the pushing piece 6 is driven to move up and down. The pushing piece 6 extends outwards from the notch. At the same time, the notch plays a role in limiting the pushing piece 6, so that the pushing piece 6 can only move up and down and cannot rotate.

[0035] A first driving gear 10 arranged coaxially is fixedly connected to the upper end of the threaded rod 5, while a second driving gear 11 arranged coaxially is fixedly connected to the upper end of the carrier 2. The threaded rod 5 passes through the upper end of the carrier 2 and extends downward. At the same time, the threaded rod 5 and the carrier 2 are coaxially arranged. Therefore, the second driving gear 11 is annular and coaxially arranged with the first driving gear 10. The first driving gear 10 and the second driving gear 11 have different heights, and the diameter of the driving gear located above is smaller than the diameter of the driving gear located below. An upper closing cover 12 is provided at the upper end of the sampling cylinder 1 to seal the upper end of the sampling cylinder 1. At the same time, two driving motors with downward-extending rotating shafts are fixedly connected inside the upper closing cover 12, and the lower ends of the rotating shafts of each driving motor are respectively fixedly connected with mating gears 13. The distances that the mating gears 13 on the two driving motors extend downward respectively cooperate with the corresponding driving gears, so that after the closing cover is closed, the two driving motors located on the closing cover respectively drive the mating driving gears, so that the rotation of the threaded rod 5 and the carrier 2 is driven during the rotation of the driving motors.

[0036] During use, first, the sampling cylinder 1 is towed and lowered to the water layer to be sampled through a towing rope, and then the threaded rod 5 is driven by a driving motor. In the initial state, the pushing piece 6 is located below the outward-extending end of the water pumping member 4 facing the outside, so that when the threaded rod 5 rotates, the pushing piece 6 moves upward. During the upward movement of the pushing piece 6, the water pumping member 4 will be pushed upward. During the upward movement of the water pumping member 4, the lower end of the water pumping member 4 is hermetically slidably connected inside the water storage pipe 3. Therefore, when the water pumping member 4 moves upward, a negative pressure will be generated at the lower end of the water storage pipe 3, and the water at the lower end of the water storage pipe 3 will be pumped into the water storage pipe 3 through the negative pressure and stored. The amount of pumped water is determined according to the upward movement distance of the water pumping member 4. After the water has been stored in the current water storage pipe 3, in order to facilitate continued use and re-sampling in the next water layer, first drive the threaded rod 5 to reverse and return to the initial position, and then drive the second driving gear 11 to rotate by driving the motor to rotate, so that the carrier 2 rotates by a certain angle, and the rotation angle is three hundred and sixty degrees divided by the number of water storage pipes 3, so that the new water storage pipe 3 moves to the sampling position, and then repeat the driving of the threaded rod 5, and then drive the pushing piece 6 to drive the water pumping member 4 in the new water storage pipe 3 to pump and store water. By repeating the operation, re-sampling can be carried out after the sampling cylinder 1 descends to the set water layer, and at the same time, the samples sampled in each water layer can be classified and stored.

[0037] And a structure for filtering impurities in the water is provided at the lower end of the sampling cylinder 1, so as to filter the impurities in the water and prevent the impurities in the water from blocking the filter screen, resulting in the impurities in different water layers entering the next sampled sample and causing inaccurate results.

[0038] A filter ring 7 is provided at the lower end of the sampling cylinder 1 for filtering the water entering the water storage pipe 3. A lower sealing cover 14 for closing the lower end of the sampling cylinder 1 is provided between the filter ring 7 and the lower end of the sampling cylinder 1. A sampling inlet 15 is formed on the lower sealing cover 14, and the position of the sampling inlet 15 corresponds to the position of the water storage pipe 3 for the current sampling. Meanwhile, during the sampling process, when the water storage pipe 3 rotates to the position of the sampling inlet 15 in the sampling cylinder 1 for sampling, this can ensure that the water entering the sampling pipe all enters through the sampling inlet 15. A flexible connection ring is provided at the upper end of the sampling inlet 15, so that when the lower end of the water storage pipe 3 rotates to the sampling inlet 15, it can play a role in preventing water leakage through the flexible connection ring at the upper end of the sampling inlet 15. A plurality of rods are arranged in a circular and divergent manner at the lower end of the lower sealing cover 14. The lower end of the lower sealing cover 14 is divided into a plurality of fan-shaped spaces by each rod. The lower end of the lower sealing cover 14 is matched with the filter ring 7, and a plurality of fan-shaped filter meshes 17 are evenly distributed in a circle on the filter ring 7, so that the number and position of each fan-shaped space respectively correspond to the filter ring 7. The sampling inlet 15 is located in one of the fan-shaped spaces. In this way, a fan-shaped cavity is formed between the filter ring 7 and the sampling inlet 15, avoiding the direct contact between the fan-shaped filter meshes 17 on the filter ring 7 and the sampling inlet 15, resulting in only the part corresponding to the sampling inlet 15 of the fan-shaped filter mesh 17 being filtered and the rest not being filtered.

[0039] A square connection port 18 is provided at the center of the filter ring 7 facing the direction of the sampling cylinder 1. A through hole is provided at the center of the lower sealing cover 14. A square connection block 16 extends downward from the center of the lower end of the carrier 2. The square connection block 16 passes downward through the through hole on the lower sealing cover 14 and extends outward. The extended end of the square connection block 16 is connected to the filter ring 7, so that the filter ring 7 rotates with the rotation of the carrier 2, while the lower sealing cover 14 cannot rotate. Therefore, when the carrier 2 rotates and switches to different water storage pipes 3 for sampling, the filter ring 7 rotates to the corresponding fan-shaped filter mesh 17 to replace the new filter mesh, so that different water storage cylinders are used each time when changing different sampling water layers and the filter mesh is automatically replaced with a new one, preventing the impurities in the previous sampling water layer from entering other water storage cylinders and avoiding inaccurate results.

[0040] A collision protection shell 19 is provided at the lower end of the lower closing cover 14. The collision protection shell 19 includes a circular shell for closing the lower end of the lower closing cover 14. The circular shell is used to enclose the filter ring 7 below the closing cover, so as to prevent the unused sector-shaped filter net 17 and the used sector-shaped filter net 17 from contacting the current water layer. An inlet 22 is provided on the circular shell. The inlet 22 corresponds to one of the sector-shaped filter nets 17, and at the same time, the position of the inlet 22 corresponds to the sampling inlet 15. When water enters from the inlet 22, the water entering the inlet 22 will be filtered by the corresponding sector-shaped filter net 17, and then the filtered water will enter the water storage cylinder from the sampling inlet 15. This can avoid debris affecting the normal use of the sampling cylinder 1 and prevent debris from entering the equipment. The mesh size of the sector-shaped filter net 17 should be determined according to the water quality of the area where it is used, so as to avoid the filter net gap being too large to filter the debris that needs to be isolated, and at the same time avoid the filter net gap being too small to prevent the substances to be collected from entering the water storage cylinder. At the same time, after sampling, the impurity content and impurity classification of the current water layer can be judged by the impurities adsorbed on the corresponding filter net.

[0041] A hemispherical anti-collision net 20 is provided at the lower end of the collision protection shell 19. The hemispherical anti-collision net 20 is used to prevent the protrusions on the side wall of the well from hitting the sampling cylinder 1 during the downward transportation, resulting in damage to the sampling cylinder 1. A plurality of support legs 21 extending obliquely downward are provided on the outer circumference of the hemispherical anti-collision net 20, so that when the sampling cylinder 1 descends to the bottom, the support legs 21 and the hemispherical anti-collision net 20 can jointly play a supporting role, avoiding the soil at the bottom of the well directly contacting the inlet 22 when the sampling cylinder 1 descends to the bottom of the well, resulting in blockage of the inlet 22. A lifting ring is provided at the center of the upper end of the upper closing cover 12, and the sampling cylinder 1 is connected to a lifting rope through the lifting ring for lifting and lowering. During the lifting and lowering of the sampling cylinder 1, since the support legs 21 extend obliquely outward, the support legs 21 can contact the well wall earlier than the sampling cylinder 1, so that the sampling cylinder 1 can be prevented from colliding with the well wall during the downward movement. The upper end of the upper closing cover 12 is an arc-shaped protrusion, which, in cooperation with the support legs 21 extending obliquely downward, can prevent the sampling cylinder 1 from getting stuck on the protrusion of the well wall when being taken out upward.

[0042] The upper closing cover 12 and the lower closing cover 14 are covered on the sampling cylinder 1, and after being covered, they are connected by a buckle to prevent falling off during the lifting and lowering process. At the same time, the upper closing cover 12 and the lower closing cover 14 are covered at specific positions and cannot rotate relative to the sampling cylinder 1. The drive motor in the upper closing cover 12 is connected to a power unit and a position sensor, and sampling operations are performed after detecting that it has descended to the set water layer.

[0043] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the claims of this patent application.

Claims

1. A device for extracting water samples for mine hydrogeological observation, characterized in that, It includes a sampling cylinder (1). Inside the sampling cylinder (1), there is a carrier (2) rotatably connected coaxially. A water storage pipe (3) is detachably connected to the carrier (2). Inside each water storage pipe (3), there is a water pumping member (4) slidably connected along the axial direction. At the upper end of the sampling cylinder (1), there is a threaded rod (5) rotatably connected coaxially. A pushing piece (6) is threadedly connected to the threaded rod (5). The pushing piece (6) is slidably connected along the axis direction of the sampling cylinder (1) and pushes the water pumping member (4). At the lower end of the sampling cylinder (1), a filtering ring (7) is rotatably connected at a position corresponding to the sampling cylinder (1). There is a detachable connection between the filtering ring (7) and the lower end of the carrier (2).

2. The water sample extraction device for mine hydrogeological observation according to claim 1, characterized in that, There are multiple water storage pipes (3) which are circumferentially and evenly distributed on the carrier (2). On the side of the upper end of the water storage pipe (3) facing the axis direction of the sampling cylinder (1), there is a sliding groove (8). The upper end of the water pumping member (4) extends out of the sliding groove (8).

3. The water sample extraction device for mine hydrographic observation according to claim 2, characterized in that, At the upper end of the sampling cylinder (1), there is an inner support cylinder (9) rotatably connected coaxially. The threaded rod (5) is rotatably connected coaxially inside the inner support cylinder (9). There is a notch on the side of the inner support cylinder (9). The pushing piece (6) extends out from the notch and corresponds to the part of the water pumping member (4) extending out of the sliding groove (8).

4. The water sample extraction device for mine hydrogeological observation according to claim 3, characterized in that, At the upper end of the threaded rod (5), there is a first driving gear (10) arranged coaxially. At the upper end of the carrier (2), there is a second driving gear (11) sleeved on the inner support cylinder (9). The first driving gear (10) and the second driving gear (11) are respectively connected to driving motors.

5. The water sample extraction device for mine hydrogeological observation according to claim 4, characterized in that, At the upper end of the sampling cylinder (1), there is an upper closed cover (12). Two driving motors are fixedly connected to the upper closed cover (12). The rotating shafts of the respective driving motors extend downward respectively. The extending ends of the rotating shafts of the respective driving motors are respectively fixedly connected with mating gears (13). The first driving gear (10) and the second driving gear (11) are respectively meshed with the corresponding mating gears (13).

6. The water sample extraction device for mine hydrogeological observation according to claim 3, characterized in that, At the lower end of the sampling cylinder (1), there is a lower closed cover (14). At a position corresponding to the pushing piece (6) on the lower closed cover (14), there is a sampling inlet (15).

7. The water sample extraction device for mine hydrogeological observation according to claim 6, characterized in that, At the lower end of the carrier (2), there is a square connecting block (16) extending downward along the axis direction of the carrier (2). The square connecting block (16) passes through the lower closed cover (14) and extends downward.

8. The water sample extraction device for mine hydrogeological observation according to claim 7, characterized in that, The filtering ring (7) is annular. There are multiple sector-shaped filter meshes (17) circumferentially and evenly distributed on the filtering ring (7). At the center part of the filtering ring (7), there is a square connecting port (18). The extending end of the square connecting block (16) is matched with the square connecting port (18).

9. The water sample extraction device for mine hydrographic observation according to claim 8, characterized in that, It also includes an anti-collision protection shell (19) located at the lower end of the lower closed cover (14). The anti-collision protection shell (19) includes a circular shell. At the lower end of the circular shell, there is a hemispherical anti-collision net (20) fixedly connected. On the outer circumference of the circular shell, there are support legs (21) extending obliquely downward. At a position corresponding to the sampling inlet (15) on the circular shell, there is a water inlet (22).

10. The water sample extraction device for mine hydrographic observation according to claim 5, wherein There is a positioning notch (23) on the upper closed cover (12). At the upper end of the sampling cylinder (1), there is a positioning guide rod (24) fixedly connected and matched with the positioning notch (23).

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