A multi-layer water sample drill hole type sampler

Abstract

This utility model relates to the field of sampling technology and discloses a multi-layer water sample drilling sampler. The multi-layer water sample drilling sampler includes a base plate, a lead screw rotatably connected to the upper surface of the base plate, a connecting plate on the lead screw, and a threaded hole on the surface of the connecting plate. The connecting plate is threaded onto the lead screw through the threaded hole. A sampling tube is rotatably mounted on the connecting plate, with its top end extending above the connecting plate and a drill bit mounted at its bottom end. The sampling tube is hollow inside and has multiple baffles fixedly connected to it. Multiple sampling holes are formed on the surface of the sampling tube. A screw is rotatably connected between the top and bottom walls of the sampling tube. In use, the sampler can quickly drill deep into the sampling location by rotating the sampling tube, and can sample and store water at different depths, then quickly discharge the sampled water.

Description

Technical Field

[0001] This utility model relates to the field of sampling technology, specifically a multi-layer water sample drilling sampler. Background Technology

[0002] When constructing the foundation of a water conservancy project, it is usually necessary to first sample and test the geographical environment. A borehole sampler is a device used to drill and sample the geological environment. When sampling mud layers, a typical borehole sampler can only sample a single layer of mud. This requires repeated sampling during the sampling process, which can easily cause mud from different layers to migrate, thus affecting the sampling and testing of the mud.

[0003] A multi-layer water sampler with publication number CN 222258817 U is disclosed. It includes a mounting frame with a moving mechanism inside. Support legs are fixedly mounted on both sides of the bottom of the mounting frame. The moving mechanism includes a threaded rod, a moving plate, a sampler, a sampling mechanism, and a drill bit. The threaded rod is mounted inside the mounting frame via a rotating shaft. The moving plate is movably mounted on the outside of the threaded rod via a threaded hole. The sampler is fixedly mounted on one side of the moving plate. This invention allows for easy control of the sampler's downward movement distance, and the downward movement of the sampler is relatively easy and simple, saving manpower. It is also simple to operate, convenient for staff to use, and improves the overall effectiveness of the equipment.

[0004] However, the above-mentioned sampler still has some shortcomings in use. The sampling tube has no rotation function, is inserted straight into the ground, has high insertion resistance, is difficult to insert into hard strata, has low efficiency, is prone to borehole deviation, has no rotational guidance, and has poor depth accuracy. It also has poor stratum adaptability and is difficult to deal with complex strata such as clay and gravel. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a multi-layer water sample drilling sampler, which solves the problems of sampling tubes lacking rotation function, being inserted straight into the ground, having high insertion resistance, being difficult to insert into hard strata, having low efficiency, being prone to borehole deviation, lacking rotational guidance, having poor depth accuracy, having weak stratum adaptability, and being unable to cope with complex strata such as clay and gravel.

[0006] This utility model provides the following technical solution: a multi-layer water sample drilling sampler, including a base plate, a lead screw rotatably connected to the upper surface of the base plate, a connecting plate provided on the lead screw, a threaded hole opened on the surface of the connecting plate, the connecting plate being threadedly sleeved on the lead screw through the threaded hole, a sampling tube rotatably mounted on the connecting plate, the top end of the sampling tube extending above the connecting plate, and a drill bit installed at the bottom end of the sampling tube;

[0007] The sampling tube is hollow inside and has multiple baffles fixedly connected to it. Multiple sampling holes are opened on the surface of the sampling tube. A screw is rotatably connected between the top and bottom walls of the sampling tube. Multiple threaded sleeves are threaded onto the surface of the screw. A sealing block is fixedly connected to the surface of each threaded sleeve. The sealing block is in contact with the inner wall of the sampling tube.

[0008] Preferred technical solution 1: The number of sampling holes matches the number of baffles, the sampling holes are located below the corresponding baffles, and the lower surface of each baffle is provided with an inclined surface, so that the baffles do not affect the rotation of the screw.

[0009] Preferred technical solution 2: A vertical rod is fixedly connected to the upper surface of the base plate, and a through hole is opened on the surface of the connecting plate. The connecting plate is slidably sleeved on the vertical rod through the through hole, and scale lines are provided on the surface of the vertical rod.

[0010] Preferred technical solution 3: A sliding rod is fixedly connected between the top and bottom walls of the sampling tube, and a sliding sleeve is slidably sleeved on the surface of the sliding rod, and the sliding sleeve is fixedly connected to the threaded sleeve.

[0011] Preferred technical solution four: A drive motor is fixedly installed on the upper surface of the connecting plate, a drive gear is fixedly installed at the output end of the drive motor, a driven gear is fixedly sleeved at the upper end of the sampling tube, and the drive gear and the driven gear mesh with each other.

[0012] Preferred technical solution five: The upper surface of the base plate is provided with a groove, the size of which is larger than the size of the sampling tube and the drill bit, and a rubber pad is adhered to the lower surface of the base plate, the surface of which is provided with anti-slip texture.

[0013] Compared with the prior art, this utility model provides a multi-layer water sample drilling sampler with the following advantages: In use, the sampler is placed at a designated location and secured. Then, the rotation of the drive motor drives the active and driven gears to rotate, thereby rotating the sampling tube and drill bit. The screw then rotates, causing the connecting plate, sampling tube, and drill bit to move downwards, bringing the drill bit into contact with the ground and inserting it for drilling. Once the drilling reaches the designated sampling depth, the drive motor stops rotating, and the screw then rotates, causing the screw sleeve to move downwards. This causes the sealing block to move downwards, removing the obstruction to the sampling hole and allowing water to flow through it into the sampling tube. The baffle separates the water samples at different depths. After sampling, the screw is rotated in the opposite direction, causing the screw sleeve to move the sealing block to block the sampling hole. The sampling tube is then retrieved from the ground. After retrieval, the device is inverted, with the bottom plate facing upwards. Rotating the screw again moves the sealing block, allowing water to flow out through the sampling hole. The inclined surface on the baffle ensures more thorough water flow, preventing residue. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the internal structure of the sampling tube of this utility model;

[0016] Figure 3 For the present utility model Figure 2 Enlarged view of the structure of A in the middle;

[0017] Figure 4 This is an exploded view of the connecting plate structure of this utility model.

[0018] In the diagram: 1. Base plate; 2. Lead screw; 3. Connecting plate; 4. Sampling tube; 5. Drill bit; 6. Baffle; 7. Sampling hole; 8. Screw; 9. Screw sleeve; 10. Sealing block; 11. Vertical rod; 12. Sliding rod; 13. Sliding sleeve; 14. Threaded hole; 15. Through hole; 16. Drive motor; 17. Drive gear; 18. Driven gear; 19. Empty slot. Detailed Implementation

[0019] Please see Figure 1-4 ,

[0020] Example 1: A multi-layer water sample drilling sampler includes a base plate 1, a lead screw 2 rotatably connected to the upper surface of the base plate 1, a connecting plate 3 provided on the lead screw 2, a threaded hole 14 opened on the surface of the connecting plate 3, the connecting plate 3 being threadedly sleeved on the lead screw 2 through the threaded hole 14, a sampling tube 4 rotatably installed on the connecting plate 3, the top end of the sampling tube 4 extending above the connecting plate 3, and a drill bit 5 installed at the bottom end of the sampling tube 4;

[0021] The sampling tube 4 is hollow inside and has multiple baffles 6 fixedly connected. Multiple sampling holes 7 are opened on the surface of the sampling tube 4. A screw 8 is rotatably connected between the top and bottom walls of the sampling tube 4. Multiple threaded sleeves 9 are threaded onto the surface of the screw 8. A sealing block 10 is fixedly connected to the surface of each threaded sleeve 9. The sealing block 10 is in contact with the inner wall of the sampling tube 4.

[0022] Example 2: The difference between this example and Example 1 is that the number of sampling holes 7 matches the number of baffles 6, the sampling holes 7 are located below the corresponding baffles 6, and the lower surface of each baffle 6 is provided with an inclined surface. The baffles 6 do not affect the rotation of the screw 8.

[0023] Example 3: The difference between this example and Example 1 is that a vertical rod 11 is fixedly connected to the upper surface of the base plate 1, a through hole 15 is opened on the surface of the connecting plate 3, the connecting plate 3 is slidably sleeved on the vertical rod 11 through the through hole 15, and a scale line is provided on the surface of the vertical rod 11.

[0024] Example 4: The difference between this example and Example 1 is that a sliding rod 12 is fixedly connected between the top and bottom walls of the sampling tube 4, and a sliding sleeve 13 is slidably sleeved on the surface of the sliding rod 12. The sliding sleeve 13 is fixedly connected to the screw sleeve 9.

[0025] Example 5: The difference between this example and Example 1 is that a drive motor 16 is fixedly installed on the upper surface of the connecting plate 3, a drive gear 17 is fixedly installed on the output end of the drive motor 16, and a driven gear 18 is fixedly sleeved on the upper end of the sampling tube 4. The drive gear 17 and the driven gear 18 mesh with each other.

[0026] Example 6: The difference between this example and Example 1 is that the upper surface of the base plate 1 is provided with a groove 19, the size of which is larger than the size of the sampling tube 4 and the drill bit 5, and a rubber pad is adhered to the lower surface of the base plate 1, the surface of which is provided with anti-slip texture.

[0027] In summary, this multi-layer water sample drilling device, when in use, is placed at a designated location and secured. The drive motor 16 rotates, driving the drive gear 17 and driven gear 18, which in turn rotates the sampling tube 4 and drill bit 5. Then, rotating the lead screw 2 moves the connecting plate 3, sampling tube 4, and drill bit 5 downwards, causing the drill bit 5 to contact the ground and penetrate for drilling. Once the drilling reaches the designated sampling depth, the drive motor 16 stops rotating. Then, rotating the screw 8 moves the screw sleeve 9 downwards, causing the sealing block 10 to move downwards, removing the obstruction to the sampling hole 7 and allowing water to flow through the sampling hole 7 into the sampling tube 4. Inside the device, the sampling water at different depths is separated by a baffle 6. After sampling is completed, the screw 8 is rotated in the opposite direction to cause the screw sleeve 9 to drive the sealing block 10 to block the sampling hole 7. Then, the sampling tube 4 is taken out from underground. After taking it out, the device is flipped upside down so that the bottom plate 1 faces upward. Then, the screw 8 is rotated to move the sealing block 10, allowing the water to flow out through the sampling hole 7. At the same time, the inclined surface on the baffle 6 makes the sampling water flow out more thoroughly and avoids residue. When using this sampler, the rotation of the sampling tube 4 can quickly drill into the sampling location and sample and store water at different depths, and then quickly discharge the sampled water.

Claims

1. A multi-layer water sample drilling device, comprising a base plate (1), characterized in that: A lead screw (2) is rotatably connected to the upper surface of the base plate (1). A connecting plate (3) is provided on the lead screw (2). A threaded hole (14) is opened on the surface of the connecting plate (3). The connecting plate (3) is threadedly sleeved on the lead screw (2) through the threaded hole (14). A sampling tube (4) is rotatably installed on the connecting plate (3). The top end of the sampling tube (4) extends above the connecting plate (3). A drill bit (5) is installed at the bottom end of the sampling tube (4). The sampling tube (4) is hollow inside and has multiple baffles (6) fixedly connected to it. Multiple sampling holes (7) are opened on the surface of the sampling tube (4). A screw (8) is rotatably connected between the top wall and the bottom wall of the sampling tube (4). Multiple threaded sleeves (9) are threaded onto the surface of the screw (8). A sealing block (10) is fixedly connected to the surface of each threaded sleeve (9). The sealing block (10) is in contact with the inner wall of the sampling tube (4).

2. The multi-layer water sample drilling sampler according to claim 1, characterized in that: The number of sampling holes (7) matches the number of baffles (6). The sampling holes (7) are located below the corresponding baffles (6). Each baffle (6) has a slope on its lower surface. The baffles (6) do not affect the rotation of the screw (8).

3. The multi-layer water sample drilling sampler according to claim 1, characterized in that: A vertical rod (11) is fixedly connected to the upper surface of the base plate (1). A through hole (15) is provided on the surface of the connecting plate (3). The connecting plate (3) is slidably sleeved on the vertical rod (11) through the through hole (15). A scale line is provided on the surface of the vertical rod (11).

4. A multi-layer water sample drilling sampler according to claim 1, characterized in that: A sliding rod (12) is fixedly connected between the top and bottom walls of the sampling tube (4). A sliding sleeve (13) is slidably sleeved on the surface of the sliding rod (12). The sliding sleeve (13) is fixedly connected to the screw sleeve (9).

5. A multi-layer water sample drilling sampler according to claim 1, characterized in that: A drive motor (16) is fixedly installed on the upper surface of the connecting plate (3). A drive gear (17) is fixedly installed at the output end of the drive motor (16). A driven gear (18) is fixedly sleeved on the upper end of the sampling tube (4). The drive gear (17) and the driven gear (18) mesh with each other.

6. A multi-layer water sample drilling sampler according to claim 1, characterized in that: The upper surface of the base plate (1) is provided with a groove (19), the size of which is larger than the size of the sampling tube (4) and the drill bit (5). A rubber pad is adhered to the lower surface of the base plate (1), and the surface of the rubber pad is provided with anti-slip texture.

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