Multi-joint leakage-proof sampler suitable for drilling surface sediments

Abstract

The utility model discloses a multi-joint leakproof sampler suitable for surface sediment drilling, which relates to the sampler field, and comprises a sleeve, the top of the sleeve is fixedly provided with a mounting plate, the bottom of the sleeve is connected with a drill bit, the sleeve is internally provided with a plurality of groups of sampling pipes, the bottoms of the sampling pipes are connected with leakproof pipes, and the leakproof pipes are connected with the drill bit. A leakage-proof device is installed at the bottom end of the inner wall of the leakage-proof pipe, and a plurality of sets of leakage-proof blocks are fixed to the top of the leakage-proof device. According to the utility model, along with the accumulation and extrusion of sediments at the bottom end in the casing, the sediments can extrude and prop open a plurality of groups of leakage-proof blocks mounted at the top of the leakage-proof device, so that the sediments enter the sampling pipe, and when the casing is lifted upwards by a drilling machine, the sediments at the bottom of the leakage-proof device do not extrude the leakage-proof blocks any more; and sediments stored in the sampling pipe downwards extrude the leakage-proof blocks due to the gravity of the sediments, so that a plurality of groups of leakage-proof blocks are combined into a hemisphere, and the sediments in the sampling pipe cannot leak out from the bottom of the sampling pipe in the ascending process of the sleeve.

Description

Technical Field

[0001] This utility model relates to the field of samplers, specifically a multi-section leak-proof sampler suitable for drilling surface deposits. Background Technology

[0002] In the field of geological exploration, it is often necessary to collect sediments from various water bodies such as oceans, lakes, and rivers. These sediments carry important information such as geological history, ecological environment evolution, and potential resource distribution. Accurately obtaining sediment samples is of great significance for the study of earth science, environmental science, and other disciplines.

[0003] Most existing sediment samplers work by vertically inserting the sampler into the sediment, using its own weight or external mechanical force to drive the sampler to a certain depth in the sediment, and then lifting the entire sampler out of the water to complete the sampling.

[0004] However, during the extraction process, this method is prone to leakage of the sample from the sampler opening due to factors such as water flow and sampler shaking, especially for deep sediments or loose sediments, where the leakage is more serious. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a multi-section leak-proof sampler suitable for drilling surface deposits, so as to solve the technical problem that the collected deposits are very easy to leak from the opening of the sampler.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-section leak-proof sampler suitable for drilling surface deposits, comprising a casing, an installation plate fixed to the top of the casing, a drill bit connected to the bottom of the casing, multiple sets of sampling tubes arranged inside the casing, a leak-proof tube connected to the bottom of the sampling tube, a leak-proof device installed at the bottom of the inner wall of the leak-proof tube, and multiple sets of leak-proof blocks fixed to the top of the leak-proof device.

[0007] By adopting the above technical solution, the problem of easily leaking collected sediment from the sampler opening is solved. The sediment enters the casing through the port at the bottom of the casing. As the sediment accumulates and compresses at the bottom of the casing, it pushes open the multiple sets of PVC leak-proof blocks installed on the top of the leak-proof device, allowing the sediment to enter the sampling tube. When the drilling rig lifts the casing upward, the sediment at the bottom of the leak-proof device no longer compresses the leak-proof blocks, and the sediment stored inside the sampling tube compresses the leak-proof blocks downward due to its own gravity, causing the multiple sets of leak-proof blocks to merge into a hemisphere. Therefore, during the casing's ascent, the sediment inside the sampling tube will not leak from the bottom of the sampling tube.

[0008] The present invention is further configured such that a connecting groove is provided on the inner wall of the top end of the sampling tube and the leak-proof tube, and the inner wall of the connecting groove is provided with an internal thread; a connecting tube is fixed to the bottom of the sampling tube, and the outer wall diameter of the connecting tube is the same as the inner wall diameter of the connecting groove.

[0009] Preferably, multiple sampling tubes can be connected together through connecting grooves and connecting pipe threads at their ends, allowing personnel to freely adjust the total length of the sampling tubes according to the exploration depth requirements.

[0010] The present invention is further configured such that the sampling tube is made of plexiglass, and the sampling tube and the sleeve are detachably connected together.

[0011] Preferably, the nested structure of the casing and the sampling tube increases the overall rigidity during the casing sinking process.

[0012] The present invention is further configured such that the bottom diameter of the inner wall of the sleeve is equal to the inner wall diameter of the leak preventer.

[0013] Preferably, the bottom of the inner wall of the casing supports the sampling tube to prevent the sampling tube from falling out of the casing during the sinking process.

[0014] The present invention is further configured such that six sets of damping are installed on the top of the drill bit, and a connecting seat is provided on the top of the damping, and the connecting seat is welded to the bottom of the casing.

[0015] Preferably, the damping absorbs the shock waves generated by the drill bit, thereby reducing the impact of the drill bit's vibration on the deposits inside the sampling tube.

[0016] The present invention is further configured such that a sensor is installed at the bottom end of the damper, and the sensor is a pressure sensor.

[0017] Preferably, the sensor detects the pressure applied to the damper by the drill bit, and the operator controls the operation of the drill bit based on the sensor's detection data, thereby preventing the drill bit from being damaged by the pressure of hard rocks.

[0018] The present invention is further configured such that the multiple sets of leak-proof blocks are configured as a flower umbrella structure, and the leak-proof blocks are made of PVC material.

[0019] Preferably, when the sediment pushes the leak-proof block upwards, the leak-proof block with its umbrella-shaped structure expands outwards, allowing the sediment to enter the sampling tube.

[0020] The present invention is further configured such that a push rod is provided inside the sampling tube, a handle is installed on the top of the push rod, a push head is fixed at the bottom of the push rod, and a rubber sleeve is provided on the outer wall of the push head.

[0021] Preferably, when personnel remove the leak-proof tube from the bottom of the sampling tube, they can push the push rod so that the push head removes the deposits adhering to the inner wall of the sampling tube through the rubber sleeve.

[0022] In summary, the present invention has the following main advantages:

[0023] 1. This utility model solves the problem of easily leaking collected sediment from the opening of the sampler by setting up a casing, sampling tube, leak-proof tube, leak-proof device, and leak-proof block. The sediment enters the casing through the port at the bottom of the casing. As the sediment accumulates and compresses at the bottom of the casing, it will squeeze and open the multiple sets of PVC leak-proof blocks installed on the top of the leak-proof device, allowing the sediment to enter the sampling tube. When the drilling rig lifts the casing upward, the sediment at the bottom of the leak-proof device no longer compresses the leak-proof block, and the sediment stored inside the sampling tube compresses the leak-proof block downward due to its own gravity, causing the multiple sets of leak-proof blocks to merge into a hemisphere. Therefore, during the upward movement of the casing, the sediment inside the sampling tube will not leak from the bottom of the sampling tube.

[0024] 2. This utility model solves the problem of drill bits being easily damaged when encountering hard rocks during drilling by setting up a connecting seat, dampers, sensors, and drill bits. Since the drill bit is connected to the connecting seat through six sets of dampers, it will move towards the connecting seat when it touches a hard rock. The dampers buffer the drill bit, and a pressure sensor is installed at the end of the damper. The sensor detects the pressure applied by the drill bit to the damper. The operator controls the operation of the drill bit through the sensor's detection data, thereby preventing the drill bit from being damaged by the pressure of hard rocks. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall device of this utility model;

[0026] Figure 2 This is a structural diagram of the sampling tube of this utility model;

[0027] Figure 3 This is a schematic diagram of the leak-proof pipe connection of this utility model;

[0028] Figure 4 This is a diagram showing the internal structure of the leak-proof pipe of this utility model;

[0029] Figure 5 This is a structural diagram of the leak-proof device of this utility model;

[0030] Figure 6 This is a schematic diagram of the pusher connection of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Sleeve; 101. Mounting plate; 2. Connecting seat; 201. Damping; 202. Sensor; 203. Drill bit; 3. Sampling tube; 301. Connecting groove; 302. Connecting pipe; 4. Leak-proof tube; 401. Leak-proof device; 402. Leak-proof block; 5. Push rod; 501. Handle; 502. Push head; 503. Rubber sleeve. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The embodiments of this utility model will be described below based on its overall structure.

[0035] First embodiment: Please refer to Figure 1 — Figure 5 The system includes a casing 1, with a mounting plate 101 fixed to its top and a drill bit 203 connected to its bottom. Multiple sampling tubes 3 are installed inside the casing 1, and a leak-proof tube 4 is connected to the bottom of each sampling tube 3. A leak-proof device 401 is installed at the bottom of the inner wall of the leak-proof tube 4, and multiple leak-proof blocks 402 are fixed to the top of the leak-proof device 401. This solves the problem that the collected sediment easily leaks out from the opening of the sampler. The sediment enters the casing 1 through the port at the bottom of the casing 1, and as the sediment accumulates at the bottom of the casing 1... The deposits will squeeze and expand the multiple sets of PVC leak-proof blocks 402 installed on the top of the leak-proof device 401, allowing the deposits to enter the sampling tube 3. When the drilling rig lifts the casing 1 upward, the deposits at the bottom of the leak-proof device 401 will no longer squeeze the leak-proof blocks 402, and the deposits stored inside the sampling tube 3 will squeeze the leak-proof blocks 402 downward due to their own gravity, causing the multiple sets of leak-proof blocks 402 to merge into a hemisphere. Therefore, during the upward movement of the casing 1, the deposits inside the sampling tube 3 will not leak out from the bottom of the sampling tube 3.

[0036] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 and Figure 4 The sampling tube 3 and the leak-proof tube 4 have a connecting groove 301 on the inner wall of their top end, and the inner wall of the connecting groove 301 is provided with an internal thread. The bottom of the sampling tube 3 is fixed with a connecting tube 302, and the outer diameter of the connecting tube 302 is the same as the inner diameter of the connecting groove 301. Multiple sets of sampling tubes 3 can be connected together by the connecting groove 301 and the connecting tube 302 at their ends, so that personnel can freely adjust the total length of the sampling tube 3 according to the exploration depth requirements.

[0037] For details regarding the above embodiments, please refer to [link / reference]. Figure 1The sampling tube 3 is made of plexiglass and is detachably connected to the sleeve 1. The nested structure of the sleeve 1 and the sampling tube 3 increases the overall rigidity of the sleeve 1 during the sinking process.

[0038] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 and Figure 5 The bottom diameter of the inner wall of the sleeve 1 is equal to the inner diameter of the leak preventer 401. The bottom of the inner wall of the sleeve 1 supports the sampling tube 3 to prevent the sampling tube 3 from falling out of the sleeve 1 during the sinking process.

[0039] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The top of the drill bit 203 is equipped with six sets of dampers 201, and the top of the dampers 201 is provided with a connecting seat 2. The connecting seat 2 is welded to the bottom of the casing 1. The dampers 201 absorb the vibration shock wave generated by the drill bit 203, thereby reducing the impact of the vibration generated by the drill bit 203 on the sediment inside the sampling tube 3.

[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 A sensor 202 is installed at the bottom of the damper 201. The sensor 202 is a pressure sensor. The sensor 202 detects the pressure applied to the damper 201 by the drill bit 203. The operator controls the operation of the drill bit 203 by using the detection data of the sensor 202, thereby preventing the drill bit 203 from being damaged by the pressure of hard rocks.

[0041] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 Multiple sets of leak-proof blocks 402 are designed with a flower umbrella structure and are made of PVC material. When the sediment pushes the leak-proof block 402 upward, the leak-proof block 402 with the flower umbrella structure expands outward, allowing the sediment to enter the sampling tube 3.

[0042] Second embodiment: Please refer to Figure 6 The sampling tube 3 is equipped with a push rod 5 inside, and a handle 501 is installed on the top of the push rod 5. Personnel can push the push rod 5 back and forth inside the sampling tube 3 through the handle 501. In addition, a push head 502 is fixed at the bottom of the push rod 5, and a rubber sleeve 503 is fitted on the outer wall of the push head 502. The outer diameter of the rubber sleeve 503 is equal to the inner diameter of the sampling tube 3. When the personnel remove the leak-proof tube 4 from the bottom of the sampling tube 3, they can push the push rod 5 so that the push head 502 passes through the rubber sleeve 503 to remove the deposits attached to the inner wall of the sampling tube 3.

[0043] In practical operation, this invention works as follows: First, multiple sampling tubes 3 are threaded together through connecting grooves 301 and connecting tubes 302 at both ends of the sampling tubes 3. Then, a leak-proof tube 4 is threaded together through the connecting groove 301 in the inner wall of the leak-proof tube 4 and the connecting tube 302 at the bottom of the sampling tubes 3. When the leak-proof tube 4 is installed at the bottom of the assembled sampling tubes 3, the sampling tubes 3 are inserted into the casing 1. Subsequently, the casing 1 is connected to the drilling rig through the top mounting plate 101. The drilling rig drives the casing 1 to sink to the bottom of the lake. When the drill bit 203 contacts the sediment at the bottom of the lake, the sediment will squeeze the drill bit 203 upward. Since the drill bit 203 is connected to the connecting seat 2 through six sets of dampers 201, the drill bit 203 will move towards the connecting seat 2. The dampers 201 impede the movement of the drill bit 203, and the dampers 201... A pressure sensor 202 is installed at the end to detect the pressure applied by the drill bit 203 to the damper 201. When the connecting seat 2 descends into the interior of the deposit, the deposit enters the interior of the casing 1 through the port at the bottom of the casing 1. As the deposit accumulates and compresses at the bottom of the casing 1, the deposit will squeeze and open the multiple sets of PVC leak-proof blocks 402 installed on the top of the leak-proof device 401, allowing the deposit to enter the interior of the sampling tube 3. When the drilling rig lifts the casing 1 upward, the deposit at the bottom of the leak-proof device 401 no longer compresses the leak-proof blocks 402, and the deposit stored inside the sampling tube 3 compresses the leak-proof blocks 402 downward due to its own gravity, causing the multiple sets of leak-proof blocks 402 to merge into a hemisphere. Therefore, during the upward movement of the casing 1, the deposit inside the sampling tube 3 will not leak out from the bottom of the sampling tube 3.

[0044] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A multi-section leak-proof sampler suitable for drilling surface deposits, comprising a casing (1), characterized in that: The top of the casing (1) is fixed with an installation plate (101), the bottom of the casing (1) is connected with a drill bit (203), the inside of the casing (1) is provided with multiple sets of sampling tubes (3), the bottom of the sampling tubes (3) is connected with a leak-proof tube (4), the bottom of the inner wall of the leak-proof tube (4) is installed with a leak-proof device (401), and the top of the leak-proof device (401) is fixed with multiple sets of leak-proof blocks (402).

2. The multi-section leak-proof sampler for surface deposit drilling according to claim 1, characterized in that: The sampling tube (3) and the leak-proof tube (4) have a connecting groove (301) on the inner wall of the top end, and the inner wall of the connecting groove (301) is provided with an internal thread. The bottom of the sampling tube (3) is fixed with a connecting tube (302), and the outer wall diameter of the connecting tube (302) is the same as the inner wall diameter of the connecting groove (301).

3. A multi-section leak-proof sampler suitable for drilling surface deposits according to claim 1, characterized in that: The sampling tube (3) is made of plexiglass and is detachably connected to the sleeve (1).

4. A multi-section leak-proof sampler suitable for drilling surface deposits according to claim 1, characterized in that: The bottom diameter of the inner wall of the sleeve (1) is equal to the inner wall diameter of the leak preventer (401).

5. A multi-section leak-proof sampler suitable for drilling surface deposits according to claim 1, characterized in that: The top of the drill bit (203) is equipped with six sets of dampers (201), and the top of the dampers (201) is provided with a connecting seat (2), and the connecting seat (2) is welded to the bottom of the casing (1).

6. A multi-section leak-proof sampler suitable for drilling surface deposits according to claim 5, characterized in that: A sensor (202) is installed at the bottom of the damper (201), and the sensor (202) is a pressure sensor.

7. A multi-section leak-proof sampler suitable for drilling surface deposits according to claim 1, characterized in that: The multiple sets of leak-proof blocks (402) are configured as a flower umbrella structure, and the leak-proof blocks (402) are made of PVC material.

8. A multi-section leak-proof sampler suitable for drilling surface deposits according to claim 1, characterized in that: The sampling tube (3) is provided with a push rod (5) inside. A handle (501) is installed on the top of the push rod (5). A push head (502) is fixed at the bottom of the push rod (5), and a rubber sleeve (503) is fitted on the outer wall of the push head (502).

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