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CN-224231309-U - Multi-joint leakage-proof sampler suitable for drilling surface sediment

CN224231309UCN 224231309 UCN224231309 UCN 224231309UCN-224231309-U

Abstract

The utility model discloses a multi-joint leakage-proof sampler suitable for drilling surface sediments, which relates to the field of samplers and comprises a sleeve, wherein a mounting plate is fixed at the top of the sleeve, a drill bit is connected to the bottom of the sleeve, a plurality of groups of sampling pipes are arranged in the sleeve, a leakage-proof pipe is connected to the bottom of the sampling pipe, a leakage-proof device is mounted at the bottom end of the inner wall of the leakage-proof pipe, and a plurality of groups of leakage-proof blocks are fixed at the top of the leakage-proof device. According to the utility model, along with accumulation extrusion of sediment at the bottom end of the inside of the sleeve, the sediment can extrude and prop up a plurality of groups of leakage-proof blocks arranged at the top of the leakage-proof device, so that the sediment enters the inside of the sampling tube, when the sleeve is lifted upwards by the drilling machine, the sediment at the bottom of the leakage-proof device does not extrude the leakage-proof blocks, and the sediment stored in the inside of the sampling tube extrudes the leakage-proof blocks downwards due to self gravity, so that the plurality of groups of leakage-proof blocks are combined into a hemispherical body, and therefore, the sediment in the inside of the sampling tube cannot leak out of the bottom of the sampling tube in the ascending process of the sleeve.

Inventors

  • LI YUHANG
  • DONG YAOHUI
  • CAI LAIXING
  • YANG TIAN
  • YUAN CHENGFANG

Assignees

  • 成都理工大学

Dates

Publication Date
20260512
Application Date
20250530
Priority Date
20250529

Claims (8)

  1. 1. The multi-joint leakage-proof sampler suitable for drilling surface sediments comprises a sleeve (1) and is characterized in that a mounting plate (101) is fixed at the top of the sleeve (1), a drill bit (203) is connected to the bottom of the sleeve (1), a plurality of groups of sampling pipes (3) are arranged in the sleeve (1), a leakage-proof pipe (4) is connected to the bottom of the sampling pipes (3), a leakage-proof device (401) is mounted at the bottom end of the inner wall of the leakage-proof pipe (4), and a plurality of groups of leakage-proof blocks (402) are fixed at the top of the leakage-proof device (401).
  2. 2. The multi-joint leakage-proof sampler suitable for drilling surface sediments according to claim 1, wherein the inner walls of the top ends of the sampling tube (3) and the leakage-proof tube (4) are provided with connecting grooves (301), the inner walls of the connecting grooves (301) are provided with internal threads, the bottom of the sampling tube (3) is fixedly provided with a connecting tube (302), and the diameter of the outer wall of the connecting tube (302) is the same as the diameter of the inner wall of the connecting groove (301).
  3. 3. The multi-joint leakage-proof sampler suitable for drilling surface sediments according to claim 1 is characterized in that the sampling tube (3) is made of organic glass, and the sampling tube (3) and the sleeve (1) are detachably sleeved together.
  4. 4. A multi-joint leak-proof sampler suitable for surface deposit drilling according to claim 1 and characterized in that the diameter of the bottom end of the inner wall of the sleeve (1) is equal to the diameter of the inner wall of the leak-proof device (401).
  5. 5. The multi-joint leakage-proof sampler suitable for surface sediment drilling according to claim 1, wherein six groups of dampers (201) are arranged on the top of the drill bit (203), a connecting seat (2) is arranged on the top of the dampers (201), and the connecting seat (2) is connected to the bottom of a sleeve (1) through welding.
  6. 6. The multi-joint leakage-proof sampler suitable for surface sediment drilling according to claim 5 and characterized in that a sensor (202) is arranged at the bottom end of the damping (201), and the type of the sensor (202) is a pressure sensor.
  7. 7. The multi-joint leakage-proof sampler suitable for surface sediment drilling as claimed in claim 1, wherein the plurality of groups of leakage-proof blocks (402) are arranged in a flower umbrella structure, and the leakage-proof blocks (402) are made of PVC materials.
  8. 8. The multi-joint leakage-proof sampler suitable for drilling surface sediments according to claim 1, wherein a push rod (5) is arranged in the sampling tube (3), a handle (501) is arranged at 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 sleeved on the outer wall of the push head (502).

Description

Multi-joint leakage-proof sampler suitable for drilling surface sediment Technical Field The utility model relates to the field of samplers, in particular to a multi-joint leakage-proof sampler suitable for drilling surface sediments. Background In the field of geological exploration, sediment of various water bodies such as oceans, lakes, rivers and the like is required to be collected, and the sediment carries important information such as geological history transition, ecological environment evolution and potential resource distribution, so that accurate acquisition of sediment samples has great significance in researching disciplines such as earth science and environmental science. Most of the existing sediment samplers are vertically inserted into sediment, the sampler is enabled to enter the sediment to a certain depth by utilizing self gravity or external mechanical force, and then the sampler is integrally lifted out of the water surface to finish sampling. However, in the extraction process, due to the factors of water flow, shaking of the sampler and the like, the sample is easy to leak from the opening of the sampler, and particularly, the leakage condition is more serious for deep sediment or sediment with loose texture. Disclosure of utility model Based on the above, the utility model aims to provide a multi-joint leakage-proof sampler suitable for drilling surface sediments, so as to solve the technical problem that collected sediments are easy to leak out from an opening of the sampler. In order to achieve the purpose, the technical scheme is that the multi-joint leakage-proof sampler suitable for drilling surface sediments comprises a sleeve, wherein the top of the sleeve is fixedly provided with a mounting plate, the bottom of the sleeve is connected with a drill bit, a plurality of groups of sampling pipes are arranged in the sleeve, the bottom of each sampling pipe is connected with a leakage-proof pipe, a leakage preventer is arranged at the bottom end of the inner wall of each leakage-proof pipe, and a plurality of groups of leakage-proof blocks are fixed at the top of each leakage preventer. Through adopting above-mentioned technical scheme, the sediment that has solved the collection very easily leaks out the problem of opening part from the sampler, the sediment enters into the sleeve pipe inside through the port of sleeve pipe bottom, along with the piling extrusion of the inside bottom deposit of sleeve pipe, the deposit can extrude the leak protection piece of multiunit PVC material of leak preventer top installation and prop up for the deposit enters into the sampling tube inside, when the rig upwards lifts the sleeve pipe, the deposit of leak preventer bottom no longer extrudees the leak protection piece, and deposit in the inside deposit of sampling tube extrudees the leak protection piece because of its own gravity downwards, make multiunit leak protection piece merge into the hemisphere, consequently, the sleeve pipe is in-process that rises, the inside deposit of sampling tube can not spill from the sampling tube bottom. The utility model is further characterized in that the inner walls of the top ends of the sampling tube and the leakage-proof tube are provided with connecting grooves, the inner walls of the connecting grooves are provided with internal threads, the bottom of the sampling tube is fixed with a connecting tube, and the diameter of the outer wall of the connecting tube is the same as the diameter of the inner wall of the connecting groove. Preferably, the multiple groups of sampling pipes can be connected together through the connecting grooves at the end parts of the sampling pipes and the connecting pipes in a threaded manner, so that personnel can freely adjust the total length of the sampling pipes according to the requirements of the exploration depth. The utility model further provides that the sampling tube is made of organic glass, and the sampling tube and the sleeve are detachably sleeved together. Preferably, the nesting of the sleeve and sampling tube increases the overall rigidity during the sinking of the sleeve. The utility model is further arranged that the diameter of the bottom end of the inner wall of the sleeve is equal to the diameter of the inner wall of the leakage preventer. Preferably, the bottom end of the inner wall of the sleeve supports the sampling tube, and the sampling tube is prevented from falling off from the inside of the sleeve in the sinking process of the sleeve. The utility model further provides that six groups of dampers are arranged at the top of the drill bit, a connecting seat is arranged at the top of the dampers, and the connecting seat is connected to the bottom of the sleeve through welding. Preferably, the damping absorbs shock waves generated by the drill bit, thereby reducing the impact of the vibration generated by the drill bit on the sediment inside the sampling tube. The utility model further provides tha