CN-224216321-U - Karst area soil organic carbon sampling device

CN224216321UCN 224216321 UCN224216321 UCN 224216321UCN-224216321-U

Abstract

The utility model relates to the technical field of soil sampling, in particular to a karst area soil organic carbon sampling device, wherein a retaining plate is positioned at a position for supporting a stop block when the device is started to be used, a supporting frame is supported against the surface of soil to be sampled, a push rod is manually pushed to move towards the direction close to the ground, so that a sampling tube is pushed to be embedded into the ground, soil samples are extruded into the sampling tube from an opening of a connecting sleeve, soil can drive the retaining plate to rotate in the process of entering the sampling tube, the retaining plate can not block the soil samples from entering the sampling tube, after the sampling tube is completely embedded into the ground, a handrail rod is manually pulled backwards, so that the sampling tube is driven to be pulled out of the soil, if the soil samples in the sampling tube are loose, the retaining plate is driven to rotate towards the original position in the falling process, and finally the soil samples return to the position for supporting the stop block, so that square gaps are closed, and the soil samples in the sampling tube are prevented from continuing to fall out.

Inventors

ZHAO YUAN
XIAO YUEXIN
ZHOU HUANZHAN
Qin Songzhou
YANG PENGZHI
TIAN ZHAOFEI
REN JIJUN

Assignees

中国地质调查局长沙自然资源综合调查中心

Dates

Publication Date: 20260508
Application Date: 20250415

Claims (10)

1. A karst area soil organic carbon sampling device is characterized by comprising a support frame, a sampling tube, a push rod and a rotating arm, wherein the support frame comprises a first support arm and a second support arm which are parallel to each other and are opposite to each other, two ends of the rotating arm are respectively connected with the first support arm and the second support arm, a sleeve is arranged in the middle of the rotating arm, the push rod is arranged in a sliding penetrating mode through the sleeve, one end of the push rod is connected with a grab bar, the sampling tube comprises a tube body and a connecting sleeve, the other end of the push rod is connected with the tube body, the connecting sleeve is in threaded sleeve connection with one side of the tube body, which is far away from the push rod, a connecting plate is arranged on the inner wall of the connecting sleeve, a square notch is formed in the middle of the connecting plate, the length of a diagonal line of the square notch is identical with the inner diameter of the connecting sleeve, 1 stop plate is hinged to the inner edges of the square notch respectively, the stop plates are in an isosceles right triangle shape, the size of the 4 stop plates is identical, one side of the connecting plate, which is far away from the tube body, the connecting plate is connected with the connecting plate, the connecting plate is in a connecting plate, the connecting plate is in threaded sleeve is arranged on one side, which is opposite to the side of the tube body, which is opposite to the stop plates, and corresponds to the stop plates, and when the stop plates are perpendicular to the stop plates.
2. The karst area soil organic carbon sampling device according to claim 1, wherein a torsion spring is arranged at the hinge joint of the striker plate and the inner edge of the square notch, and the torsion force of the torsion spring enables the striker plate to have a tendency of abutting against the stop block.
3. The karst region soil organic carbon sampling device according to claim 1, wherein 4 stoppers are arranged in a central symmetry with the central axis of the cylinder body.
4. The karst region soil organic carbon sampling device according to claim 1, wherein the push rod and the sleeve are coaxial, the push rod and the cylinder body are coaxial, and the cylinder body and the connecting sleeve are coaxial.
5. The karst region soil organic carbon sampling device according to claim 1, wherein the connecting plate is perpendicular to the central axis of the cylinder body, and one side of the stop block, which is away from the cylinder body, is sharp.
6. The karst area soil organic carbon sampling device according to claim 1 is characterized in that an inner wall of the connecting sleeve is provided with an inner thread, and an outer wall of one side of the cylinder body, which is away from the push rod, is provided with an outer thread which can be screwed with the inner thread in a matching manner.
7. The karst region soil organic carbon sampling device according to claim 1 is characterized in that the supporting frame further comprises a supporting base, the first supporting arm and the second supporting arm are vertically connected to the supporting base, a first through hole is formed in the supporting base, and the sampling tube can penetrate through the first through hole.
8. The karst region soil organic carbon sampling device according to claim 7, wherein one end of the rotating arm is rotatably arranged through the first supporting arm, the other end of the rotating arm is rotatably connected with the second supporting arm, the rotating arm is parallel to the supporting base, the sleeve is arranged in the middle between the first supporting arm and the second supporting arm, the rotating arm can rotate until the sampling tube faces the first through hole, and the sampling tube can pass through the first through hole when the sampling tube faces the first through hole so as to be embedded into the ground.
9. The karst region soil organic carbon sampling device is characterized by further comprising a locking component, wherein the locking component comprises a sliding rail, a sliding seat, a locking rod, a spring and a connecting seat, one end of the rotating arm extends out of the first supporting arm, one end of the rotating arm extending out of the first supporting arm is connected with a rotating handle, a second through hole is formed in the rotating arm in a penetrating mode, the central axis of the second through hole is perpendicular to the central axis of the rotating handle, the sliding rail is arranged on one side, away from the second supporting arm, of the first supporting arm, the sliding rail is perpendicular to the supporting base, the sliding seat is connected with the sliding rail in a sliding mode, the sliding seat is located on one side, close to the supporting base, of the rotating arm, of the first supporting arm, the connecting seat is located on one side, close to the supporting base, of the sliding rail, the locking rod is connected with the other end, facing away from the connecting seat, of the sliding rail, of the second supporting arm, the sliding rail is perpendicular to the central axis of the rotating handle, the sliding rail is perpendicular to the supporting base, the sliding rail is connected with the sliding seat, the sliding seat is located on one side, close to the supporting base, of the connecting seat, the connecting seat is located on one side of the sliding arm, the connecting seat is located on one side, and the side, of the sliding arm, the sliding arm is located on the side, and the connecting seat.
10. The karst area soil organic carbon sampling device according to claim 9, wherein an electromagnet is arranged on one side, facing the sliding seat, of the connecting seat, the electromagnet is used for attracting the sliding seat, and when the electromagnet attracts the sliding seat, the locking rod and the rotating arm keep a preset distance.

Description

Karst area soil organic carbon sampling device Technical Field The utility model relates to the technical field of soil sampling, in particular to a karst region soil organic carbon sampling device. Background The organic matter concept of the soil refers to the combination of humus, animal and plant residues and microorganisms formed by the action of microorganisms, wherein the carbon element content is soil organic carbon. Soil organic carbon is classified into easily decomposed organic carbon, hardly decomposed organic carbon and inert organic carbon according to the availability of microorganisms. The easy-to-decompose person has higher bioavailability and loss rate, and the difficult-to-decompose person has higher residual rate. When the organic carbon in the soil is detected, the soil is firstly required to be sampled, the existing soil sampling devices are all of cylinder type sampling structures, the sampling cylinders are embedded underground to enable the soil to enter the sampling cylinders, if the soil samples are dry, the soil samples are easy to fall out of the outlets of the sampling cylinders again due to loosening in the taking out process, and the soil samples are inconvenient to collect. Disclosure of utility model The utility model mainly aims to provide a karst area soil organic carbon sampling device, and aims to solve the problem that the existing soil sampling device is easy to cause a soil sample to fall out of an outlet of a sampling tube again due to loosening in the process of taking out. In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: The karst area soil organic carbon sampling device comprises a support frame, a sampling tube, a push rod and a rotating arm, wherein the support frame comprises a first support arm and a second support arm which are parallel to each other and are right opposite to each other, two ends of the rotating arm are respectively connected with the first support arm and the second support arm, a sleeve is arranged in the middle of the rotating arm, the push rod is arranged in the sleeve in a sliding mode, one end of the push rod is connected with a grab bar, the sampling tube comprises a tube body and a connecting sleeve, the other end of the push rod is connected with the tube body, the connecting sleeve is in threaded sleeve on one side of the tube body, the inner wall of the connecting sleeve is provided with a connecting plate, a square notch is formed in the middle of the connecting plate, the length of a diagonal line of the square notch is identical with the inner diameter of the connecting sleeve, 1 baffle plate is hinged to the inner edges of the square notch respectively, the baffle plates are in right-angle triangle shapes, the sizes of the 4 baffle plates are identical, one side of the connecting plate, which is away from the tube body, is provided with 4 baffle plates, the baffle plates are in isosceles triangle shapes, the baffle plates are in the shape, the shape of the baffle plates are opposite to the tube body, the baffle plates are in the shape of corresponding to the two baffle plates, and the baffle plates are perpendicular to the baffle plates. Preferably, a torsion spring is arranged at the hinge joint of the striker plate and the inner edge of the square notch, and the torsion force of the torsion spring enables the striker plate to have a tendency of abutting against the stop block. Preferably, the 4 stoppers are symmetrically distributed with the central axis of the cylinder body. Preferably, the push rod and the sleeve share the same central axis, the push rod and the cylinder body share the central axis, and the cylinder body and the connecting sleeve share the central axis. Preferably, the connecting plate is perpendicular to the central axis of the cylinder body, and one side of the stop block, which is away from the cylinder body, is sharp. Preferably, the inner wall of the connecting sleeve is provided with an internal thread, and the outer wall of one side of the cylinder body, which is far away from the push rod, is provided with an external thread which can be screwed with the internal thread in a matching way. Preferably, the support frame further comprises a support base, the first support arm and the second support arm are vertically connected to the support base, a first through hole is formed in the support base, and the sampling tube can penetrate through the first through hole. Preferably, one end of the rotating arm is rotatably arranged through the first supporting arm, the other end of the rotating arm is rotatably connected with the second supporting arm, the rotating arm is parallel to the supporting base, the sleeve is arranged in the middle between the first supporting arm and the second supporting arm, the rotating arm can rotate until the sampling tube faces the first through hole, and when the sampling tube faces the first through hole, the sampling