CN111207951A - Low-disturbance soil sampling device and sampling method thereof - Google Patents
Low-disturbance soil sampling device and sampling method thereof Download PDFInfo
- Publication number
- CN111207951A CN111207951A CN202010144467.9A CN202010144467A CN111207951A CN 111207951 A CN111207951 A CN 111207951A CN 202010144467 A CN202010144467 A CN 202010144467A CN 111207951 A CN111207951 A CN 111207951A
- Authority
- CN
- China
- Prior art keywords
- sampling
- soil
- baffle
- sampler barrel
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
Abstract
The invention relates to the technical field of soil detection, in particular to a low-disturbance soil sampling device and a sampling method thereof. Enter into the underground through beating the sampler barrel, soil enters into the sampler barrel from the open end of sampler barrel under the extrusion of sampler barrel, soil in the sampler barrel extrudees the pendulum rod and triggers after the pendulum rod swing, the pivot unblock is in order to make the baffle revolute the rotation of axes under the effect of torsional spring, and simultaneously, the drive of cooperation motor is in order to make the baffle cut off the open end of soil with closed sampler barrel, and then make the in-process taking out the sampler barrel, soil in the sampler barrel is difficult for falling out the sampler barrel from the opening part of sampler barrel, be favorable to improving the integrality of sample soil, and then improve soil sampling test analysis's accuracy.
Description
Technical Field
The invention relates to the technical field of soil detection, in particular to a low-disturbance soil sampling device and a sampling method thereof.
Background
Currently, a soil sampler is a tool often used in environmental monitoring, and a soil sample is taken out through the soil sampler and then analyzed to obtain various components contained in soil. For example, patent No. CN204789028U discloses a soil sampler, which comprises a handle and a sampling rod movably connected with the handle, wherein the sampling rod is movably connected with a sampling rod I and a sampling rod II, and the sampling rod I and the sampling rod II are both of a sleeve type structure; the sampling rod I is hinged with the handle; the lower part of the sampling rod II is movably connected with a sampling tube; the sampling tube is provided with a sampling port. The sampler adopting the telescopic sleeve structure is folded upwards by the handle during carrying, and the spring positioning pin is pressed to push the sampling tube to the sampling rod I and the sampling rod II simultaneously, so that the length of the sampler is reduced, and the sampler is convenient to carry. Soil can be guaranteed to the sample connection of geotome side and easily gets into the geotome, simultaneously, the cooperation uses the scraper to scrape the soil that is difficult for taking off and falls.
The above prior art solutions have the following drawbacks: when gathering the soft soil sample of earth, because of between soil and the soil, the viscidity between soil and the thief rod inner wall is lower to make at the in-process of taking out the thief rod from earth, soil in the thief rod can drop from the appearance mouth, and the integrality of the soil sample of gathering has suffered to destroy, causes certain influence to the accuracy of the sample data of obtaining, needs to improve this.
Disclosure of Invention
In view of the shortcomings of the prior art, it is an object of the present invention to provide a low disturbance soil sampling device.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a low disturbance soil sampling device, includes the sampler barrel, the one end opening of sampler barrel, it is connected with the expert and closes to rotate on the opening end of sampler barrel the baffle of sampler barrel, be equipped with on the sampler barrel and restrict the baffle and rotate the back and shelter from sampler barrel open-ended locating part, the protruding locating part that is equipped with in the sampler barrel relative with the one end of open end removes the trigger device spacing to the baffle under the extrusion of soil.
Through adopting above-mentioned technical scheme, make the sampler barrel insert the underground, in the opening part of in-process earth from the sampler barrel that pushes down at the sampler barrel entered into the sampler barrel, soil in the sampler barrel extrudees trigger device, trigger device triggers to rotate after the restriction that the baffle breaks away from the restriction part and shelters from the opening part at the sampler barrel, and then at the in-process of taking out the sampler barrel, the soil sample in the sampler barrel is difficult for falling out from the sampler barrel, and then make the soil sample of getting difficult by the damage, be favorable to improving the accuracy of soil detection data. The height of soil in the sampling cylinder is used as a trigger condition, the baffle does not need to be manually closed, and the convenience of baffle closing is improved.
The present invention in a preferred example may be further configured to: open along the length direction of sampling tube on the sampling tube has the spout, the locating part include with spout sliding connection's unblock pole, it is connected with the pivot to rotate on the sampling tube, the one end of pivot peg graft in baffle and with baffle fixed connection, the vertical orientation pivot setting of unblock pole, the one end of unblock pole pass the pivot along the center pin direction of pivot and with pivot sliding connection, the one end that the unblock pole inserted the pivot includes rectangle portion and cylinder portion, the rectangle portion is close to the end of wearing out of pivot, the cylinder portion is close to the end of wearing in pivot, the length of rectangle portion is greater than cylinder portion, trigger device includes that the drive unblock pole slides so that the rectangle portion stretches out the outer trigger piece of pivot.
Through adopting above-mentioned technical scheme, when trigger device was extruded to soil so that trigger device triggered the unblock pole, the unblock pole slided downwards so that the rectangle portion of unblock pole breaks away from the pivot, the pivot breaks away from the restriction back of unblock pole, the swing appears along with the rotation of pivot under trigger device's effect to the baffle, the baffle shutoff is at the opening part of sampling tube, and then makes the soil sample of obtaining be difficult for spilling from the opening part of sampling tube, and then has kept the integrality of the soil sample of sampling tube obtained. The rectangular part is inserted into the rotating shaft at the beginning, the edge of the rectangular part is contacted with the rotating shaft, and then the self-transmission of the rotating shaft is limited, so that the rotating shaft is in a static state under the condition that the trigger part does not trigger the unlocking rod, and the sampling barrel is kept in an open state, so that soil enters the sampling barrel.
The present invention in a preferred example may be further configured to: trigger piece includes the pendulum rod, open on the inner wall of sampling tube have with the through-hole of spout intercommunication, the one end of pendulum rod is followed the through-hole and is stretched into in the spout, the pendulum rod with the through-hole swing is connected, along the length direction sunken recess of unblock lever on the unblock pole, the one end that the pendulum rod stretched into the spout stretch into in the recess and with the cell wall butt of recess, the one end that the recess was kept away from to the pendulum rod stretches out in the sampling tube, the inner wall of sampling tube with fixedly connected with reset torsion spring between the pendulum rod.
Through adopting above-mentioned technical scheme, in the sampling tube was constantly entered into to soil, the highly continuous height that increases of soil in the sampling tube, until soil contact pendulum rod and extrusion pendulum rod so that the pendulum rod swings around the hookup point department of pendulum rod and sampling tube, the pendulum rod applys decurrent thrust to the unblock pole with the one end of recess butt, the unblock pole slides along the spout, and then makes the rectangle portion break away from the pivot, and the pivot drives the baffle and rotates the open end with the shutoff sampling tube. The soil driving swing rod rotates to further drive the unlocking rod to slide, so that the baffle is unlocked, the quantity of soil entering the sampling cylinder is controlled, the collection of soil samples is facilitated, and the collection of soil is more flexible. After the extrusion on the swing rod is released, the reset torsion spring applies torsion to the swing rod so as to reset the swing rod to wait for the next driving.
The present invention in a preferred example may be further configured to: the trigger device further comprises a limiting torsion spring, the limiting torsion spring is sleeved on the rotating shaft, one end of the limiting torsion spring is fixedly connected with the inner wall of the sampling tube, and the other end of the limiting torsion spring is fixedly connected with the baffle.
Through adopting above-mentioned technical scheme, utilize the torsion of spacing torsional spring, after the unblock pole removes the restriction to the pivot, the baffle rotates and then seals the open end of sampler barrel under spacing spring's drive, and then makes the soil sample in the sampler barrel be difficult for falling out at the ascending process of sampler barrel, has improved the integrality of soil sample collection, and then has improved the accuracy of soil sample detection data.
The present invention in a preferred example may be further configured to: the baffle is provided with a plurality of, and is a plurality of the baffle is around the circumference distribution of sampler barrel.
Through adopting above-mentioned technical scheme, cut soil with the power of a plurality of directions of dispersion through setting up the polylith baffle, be favorable to the baffle to cut off the soil of sampler barrel opening end department and the soil outside the sampler barrel when rotating, the baffle is to the effect preferred that cuts off of soil, and the cut-off speed is very fast, can be in time with the opening closure of sampler barrel.
The present invention in a preferred example may be further configured to: the baffle becomes the arc setting, it has the groove of accomodating to cave in on the inner wall of sampler barrel, the baffle with accomodate groove sliding connection.
Through adopting above-mentioned technical scheme, through accomodating the baffle on the inner wall of sampler barrel to make when using the sampler barrel to borrow soil, the baffle is difficult for sheltering from soil and gets into in the sampler barrel, has improved the sample effect of sampler barrel. Through the protruding position with the baffle and accomodate groove sliding connection to make the baffle when rotating with the closed sampling tube, the baffle becomes certain radian cutting soil, is favorable to sheltering from the opening part at the sampling tube after cutting off the soil of sampling tube opening part, has improved the cutting effect of baffle to soil.
The present invention in a preferred example may be further configured to: fixedly connected with motor on the inner wall of sampling tube, the axis of rotation of motor with the pivot is coaxial fixed, sampling device is still including installing the control circuit in the sampling tube, control circuit includes:
the detection module is arranged on the inner wall of the sampling cylinder and used for detecting the soil height in the sampling cylinder and outputting a detection signal;
the judging module is coupled with the detecting module to receive the conversion signal and is provided with a height threshold signal to output a control signal when the detection signal is greater than the threshold signal;
and the control module is coupled with the judgment module and responds to the control signal to control the motor to rotate until the plurality of baffles close the sampling cylinder opening.
Through adopting above-mentioned technical scheme, the soil volume in the sample barrel is entered into with real time monitoring to the height of soil in the sample barrel through detection module detection, judge that the module is when judging that received detected signal is greater than high threshold signal, to control module transmission control signal so that control module control motor rotates with the drive baffle rotation, the baffle is under the drive of motor, the resistance of overcoming soil realizes sheltering from the opening part at the sample barrel, through the drive of motor, in order under the harder condition of soil, the baffle also can open soil and realize the closure, so that the soil in the sample barrel is difficult for dropping, the integrality of sample soil has been improved.
The present invention in a preferred example may be further configured to: the sampling section of thick bamboo includes a left section of thick bamboo and a right section of thick bamboo, a left side section of thick bamboo or be equipped with the restriction on the section of thick bamboo of the right side a left side section of thick bamboo with the restriction piece of a right side section of thick bamboo separation.
Through adopting above-mentioned technical scheme, through setting the sampling tube into the two halves that can decompose to make after taking out the sampling tube from the underground, can directly unblock restriction piece so that a left side section of thick bamboo and a right side section of thick bamboo separation, so that can carry out the analysis by taking out more complete with sample soil, be favorable to the layering condition that testing personnel observed sample soil, with the accuracy that improves soil detection.
The present invention in a preferred example may be further configured to: the limiting piece comprises a threaded fastener, and the threaded fastener penetrates through the left barrel and is in threaded connection with the right barrel.
Through adopting above-mentioned technical scheme, directly lock a left section of thick bamboo and a right section of thick bamboo through threaded fastener, connect between a left section of thick bamboo and the right section of thick bamboo firmly to when squeezing into the underground with the sampling tube and getting soil, a left section of thick bamboo and a right section of thick bamboo are difficult for separating, and then are favorable to the sample of sampling tube and improve the integrality of sample soil in the sampling tube.
Aiming at the defects in the prior art, the invention also aims to provide a sampling method of the low-disturbance soil sampling device.
The above object of the present invention is achieved by the following technical solutions:
step 1: aligning the sampling cylinder to the position to be earthed;
step 2: striking an end opposite to the opening of the sampling tube with a striking tool to drive the sampling tube into the ground;
and step 3: soil in the sampling cylinder extrudes the swing rod and pushes the swing rod to swing, the swing rod pushes the unlocking rod to move downwards after swinging so that the rectangular part penetrates out of the rotating shaft, and the baffle plate swings outwards under the action of the limiting spring and cuts the soil at the opening of the sampling cylinder;
and 4, step 4: after the opening of the sampling tube is closed by the baffle, the sampling tube is taken out and the threaded fastener on the sampling tube is taken down, and the soil sample in the sampling tube can be taken out by opening the sampling tube.
Through adopting above-mentioned technical scheme, enter into the underground through beating the sampling tube, soil enters into the sampling tube from the open end of sampling tube under the extrusion of sampling tube in, soil in the sampling tube extrudees the pendulum rod and triggers after the pendulum rod swing, the pivot unblock is so that the baffle revolutes the rotation of axes under the effect of torsional spring, and simultaneously, the drive of cooperation motor is so that the baffle cuts off the open end of soil with the closed sampling tube, and then make the in-process taking out the sampling tube, soil in the sampling tube is difficult for falling out the sampling tube from the opening part of sampling tube, be favorable to improving the integrality of sampling soil, and then improve soil sampling test analysis's accuracy.
In conclusion, the beneficial technical effects of the invention are as follows:
1. when soil extrudees trigger device so that trigger device triggers the unblock pole, the unblock pole slides downwards so that the rectangle portion of unblock pole breaks away from the pivot, and the pivot breaks away from the restriction back of unblock pole, and the swing appears along with the rotation of pivot under trigger device's effect to the baffle, and the baffle shutoff is at the opening part of sampling tube, and then makes the soil sample of obtaining be difficult for leaking from the opening part of sampling tube, and then has kept the integrality of the soil sample of sampling tube obtained. The rectangular part is inserted into the rotating shaft at the beginning, the edge of the rectangular part is contacted with the rotating shaft, so that the self-transmission of the rotating shaft is limited, the rotating shaft is in a static state under the condition that the unlocking rod is not triggered by the trigger part, and the sampling cylinder is kept in an open state, so that soil can enter the sampling cylinder;
2. the sampling cylinder is beaten to enter the underground, soil enters the sampling cylinder from the opening end of the sampling cylinder under the extrusion of the sampling cylinder, after the soil in the sampling cylinder extrudes the swing rod and triggers the swing rod to swing, the rotating shaft is unlocked so that the baffle rotates around the rotating shaft under the action of the torsion spring, and meanwhile, the baffle is driven by the motor to cut off the soil to close the opening end of the sampling cylinder, so that the soil in the sampling cylinder is not easy to fall out of the sampling cylinder from the opening of the sampling cylinder in the process of taking out the sampling cylinder, the integrity of the sampled soil is improved, and the accuracy of soil sampling detection and analysis is improved;
3. through setting the sampling tube into the two halves that can decompose to make after taking out the sampling tube from the underground, can directly unblock restriction piece so that a left side section of thick bamboo and a right side section of thick bamboo separation, so that can carry out the analysis by taking out the sample soil more complete, be favorable to the layering condition that testing personnel observed sample soil, with the accuracy that improves soil detection.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic view showing the relationship between the lock release lever and the rotary shaft in the present embodiment;
FIG. 3 is a schematic view of the present embodiment after the rectangular portion is taken out of the through hole;
fig. 4 is a schematic diagram of a control circuit in the present embodiment.
In the figure, 1, a sampling tube; 110. a left barrel; 111. a right barrel; 2. an unlocking lever; 21. a cylindrical portion; 22. a rectangular portion; 3. a baffle plate; 4. a trigger device; 41. a swing rod; 42. a return torsion spring; 43. a limiting torsion spring; 5. a chute; 6. a through hole; 7. a rotating shaft; 8. rotating the groove; 9. a receiving groove; 10. a motor; 11. a connecting shaft; 12. a threaded fastener; 13. a groove; 14. a through hole; 15. a detection module; 16. a judgment module; 17. and a control module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the low-disturbance soil sampling device disclosed by the invention comprises a sampling cylinder 1 with an opening at one end, a baffle 3 for opening and closing the sampling cylinder 1 is rotatably connected to the opening end of the sampling cylinder 1, a limiting piece for limiting the baffle 3 to shield the opening of the sampling cylinder 1 after rotating is arranged on the sampling cylinder 1, and a trigger device 4 for triggering the limiting piece to release the limiting of the baffle 3 under the extrusion of soil is convexly arranged at one end, opposite to the opening, in the sampling cylinder 1.
Referring to fig. 1 and 2, the cross section of the sampling tube 1 is circular, the sampling tube 1 is divided into a left tube 110 and a right tube 111, and a limiting member for limiting the separation of the left tube 110 and the right tube 111 is mounted on the left tube 110 or the right tube 111.
The restraint includes a threaded fastener 12, in this embodiment the threaded fastener 12 includes a bolt, and in other embodiments the threaded fastener 12 may also be a threaded rod. The threaded fastener 12 is threaded through the left barrel 110 to the right barrel 111.
The inner wall of the opening end of the sampling tube 1 is provided with a rotary groove 8, the rotary groove 8 is rotatably connected with a rotary shaft 7, and one end of the rotary shaft 7 is inserted into the baffle 3 and is fixedly connected with the baffle 3.
Referring to fig. 2, the inner wall of the sampling tube 1 is provided with a sliding groove 5 communicated with a rotating groove 8 along the length direction of the sampling tube 1, the limiting part comprises an unlocking rod 2 placed in the sliding groove 5, the length direction of the unlocking rod 2 is consistent with the length direction of the sliding groove 5, the unlocking rod 2 is connected with the groove wall of the sliding groove 5 in a sliding manner, the unlocking rod 2 is vertically arranged towards a rotating shaft 7, one end of the unlocking rod 2 penetrates into the rotating shaft 7, and the axis of the unlocking rod 2 is parallel to the axis of the rotating shaft 7.
The number of the unlocking rods 2 is four, and the four unlocking rods 2 are uniformly distributed around the circumference of the sampling cylinder 1.
Referring to fig. 2 and 3, one end of the lock release lever 2 inserted into the rotation shaft 7 includes a rectangular portion 22 and a cylindrical portion 21, the rectangular portion 22 is located at one end of the lock release lever 2 near the opening of the sampling tube 1, and the height of the rectangular portion 22 is smaller than the length of the cylindrical portion 21. Rectangular through holes 14 are formed in the rotating shaft 7 through both ends of the rotating shaft 7, the rectangular portions 22 are inserted into the through holes 14 and slidably connected to the through holes 14, and the diameter of the cylindrical portion 21 is smaller than the diameter of the through holes 14.
Referring to fig. 2 and 3, the trigger device 4 includes a driving member that drives the lock release lever 2 to slide so that the rectangular portion 22 passes out of the rotating shaft 7. The driving piece comprises a swing rod 41, a through hole 6 communicated with the sliding groove 5 is formed in the inner wall of the sampling barrel 1, one end of the swing rod 41 penetrates through the through hole 6 and then extends into the sliding groove 5, a groove 13 is formed in one end, away from the rotating shaft 7, of the unlocking rod 2, one end of the swing rod 41 extending into the sliding groove 5 is inserted into the groove 13, and the swing rod 41 is abutted to the groove wall of the groove 13. One end of the swing rod 41 far away from the groove 13 extends out of the inner cavity of the sampling tube 1.
Referring to fig. 3, a reset torsion spring 42 is sleeved on a rotating shaft of the swing rod 41, one end of the reset torsion spring 42 is fixedly connected with the swing rod 41, and the other end is fixedly connected with the inner wall of the sampling tube 1.
Referring to fig. 2, the triggering device 4 further includes a limit torsion spring 43, the limit torsion spring 43 is sleeved on the rotating shaft 7, one end of the limit torsion spring 43 is fixedly connected with the rotating shaft 7, and the other end of the limit torsion spring 43 is fixedly connected with the inner wall of the sampling tube 1.
The baffle 3 has a plurality of blocks, in this embodiment, the baffle 3 is preferably provided with four blocks, and the four blocks 3 are uniformly distributed around the circumference of the sampling tube 1.
Referring to fig. 2, the baffle 3 is arc-shaped, a receiving groove 9 is recessed at an opening of the sampling cylinder 1 close to the sampling cylinder 1, and a plurality of baffles 3 are received in the receiving groove 9.
Referring to fig. 2 and 3, a motor 10 is fixedly connected to the inner wall of the sampling tube 1, a hollow connecting shaft 11 with two open ends is coaxially fixed on a rotating shaft of the motor 10, one end of the connecting shaft 11 extends into the rotating groove 8 and is coaxially fixed with the rotating shaft 7, a rectangular portion 22 is slidably connected with the inner cavity wall of the connecting shaft 11, and the rectangular portion 22 is stationary relative to the connecting shaft 11.
Referring to fig. 4, the sampling device further includes a control circuit installed in the sampling cylinder 1, the control circuit includes a detection module 15 installed on an inner wall of the sampling cylinder 1 for detecting a soil height in the sampling cylinder 1 and outputting a detection signal, a determination module 16 coupled to the detection module 15 for receiving the detection signal and provided with a height threshold signal to output a control signal when the detection signal is greater than the threshold signal, and a control module 17 coupled to the determination module 16 and controlling the motor 10 to rotate in response to the control signal until the plurality of baffles 3 close an opening of the sampling cylinder 1 (see fig. 2).
The judging module 16 includes a signal comparator, a positive phase input end of the signal comparator is connected in series with the first resistor R1 and then electrically connected with the infrared ranging sensor to receive a detection signal, an opposite phase input end of the signal comparator is connected with the second resistor R2, the third resistor R3 and the fourth resistor R4, the third resistor R3 and the fourth resistor R4 are connected in series and then connected to the power supply loop, one end of the second resistor R2 is electrically connected with the opposite phase input end of the signal comparator, and the other end of the second resistor R2 is electrically connected with a connection node of the third resistor R3 and the fourth resistor R4 to obtain a height threshold signal.
The judging module 16 further comprises a triode Q1, the base of the triode Q1 is electrically connected with the signal output end of the signal comparator, the collector of the triode Q1 is electrically connected with the control module 17, and the emitter of the triode Q1 is grounded.
The control module 17 comprises a relay, a coil KM of the relay is connected in series with a collector of a triode Q1 to be connected with a power circuit, and a normally open contact switch KM1-1 of the relay is connected in series with a power supply loop of the motor 10.
The implementation principle of the embodiment is as follows:
the sampling tube 1 is placed at a position to be sampled, the sampling tube 1 is hammered to enable soil to enter the sampling tube 1 from an opening of the sampling tube 1, the soil entering the sampling tube 1 is continuously accumulated and heightened in the sampling tube 1 until the soil extrudes the swing rod 41 and pushes the swing rod 41 to swing, the swing rod 41 pushes the unlocking rod 2 towards the direction of the rotating shaft 7 in the swinging process to enable the rectangular part 22 on the unlocking rod 2 to penetrate out of the rotating shaft 7, the cylindrical part 21 is located in the rotating shaft 7, the rotating shaft 7 swings around the rotating shaft 7 under the driving of a torsion spring, the swinging baffle 3 can cut the soil at the opening of the sampling tube 1 and seal and block the soil in the sampling tube 1, so that the soil in the sampling tube 1 is not easy to loosen and then falls out of the sampling tube 1 in the process of taking out the sampling tube 1, and the integrity of the soil collected in the sampling tube 1 is favorably maintained, and then be favorable to improving the degree of accuracy of soil sampling test data.
The height of soil entering the sampling cylinder 1 is detected in real time through an infrared distance measuring sensor, a detected detection signal is transmitted to a signal comparator, the signal comparator compares the received detection signal with a height threshold signal, and when the detection signal is greater than the height threshold signal, a high level signal is output to a triode Q1 to conduct a triode Q1, a coil KM is powered after the triode Q1 is conducted, a normally open contact switch KM1-1 is closed to power a motor 10, the motor 10 drives a rotating shaft 7 to rotate after being powered, and then the driving force of the baffle 3 is increased by matching with a torsional spring, so that the cutting force of the baffle 3 on the soil is increased, and further, a plurality of baffles 3 are closed at the opening of the sampling cylinder 1, so that the soil in the sampling cylinder 1 is not easy to fall out of the sampling cylinder 1 from the opening of the sampling cylinder 1 in the process of taking out the sampling cylinder 1, the integrity of the sampled soil is kept, and the accuracy of soil detection data is improved.
Open a left section of thick bamboo 110 and a right section of thick bamboo 111 in order to take out soil in the mode of separation about the adoption, so that a left section of thick bamboo 110 and a right section of thick bamboo 111 are difficult for touching soil, be favorable to improving the integrality after soil takes out, and then improve soil detection data's accuracy, after taking out soil, the rectangle portion 22 of locking release lever 2 promotes towards the direction of keeping away from pivot 7, promote baffle 3 simultaneously and accomodate the inslot 9, so that rectangle portion 22 is located pivot 7 again, sampling device resumes the former state, so that use next time.
Referring to fig. 2 and 3, the sampling method of the low disturbance soil sampling device disclosed by the invention comprises the following steps:
step 1: aligning the sampling cylinder 1 to a position to be earthed;
step 2: striking an end opposite to the opening of the sampling tube 1 with a striking tool to drive the sampling tube 1 into the ground;
and step 3: soil in the sampling tube 1 extrudes the swing rod 41 and pushes the swing rod 41 to swing, the swing rod 41 pushes the unlocking rod 2 to move downwards after swinging so that the rectangular part 22 penetrates out of the rotating shaft 7, and the baffle 3 swings outwards under the action of the limiting spring and cuts soil at the opening of the sampling tube 1;
and 4, step 4: after the baffle 3 closes the opening of the sampling tube 1, the sampling tube 1 is taken out and the threaded fastener 12 on the sampling tube 1 is taken down, and the soil sample in the sampling tube 1 can be taken out by opening the sampling tube 1.
The implementation principle of the embodiment is as follows:
enter into the underground through beating sampling tube 1, soil enters into sampling tube 1 from sampling tube 1's open end under sampling tube 1's extrusion in, soil in sampling tube 1 extrudees pendulum rod 41 and triggers pendulum rod 41 swing, infrared distance measuring sensor sends the detected signal to judging module 16 after detecting soil arrival specified height, pivot 7 unblock so that baffle 3 revolutes 7 rotations of pivot under the effect of torsional spring, and simultaneously, the drive of cooperation motor 10 is in order to make baffle 3 cut off the open end of soil with closed sampling tube 1, and then make at the in-process of taking out sampling tube 1, soil in sampling tube 1 is difficult for falling out sampling tube 1 from sampling tube 1's opening part, be favorable to improving the integrality of sampling soil, and then improve soil sampling detection analysis's accuracy.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a low disturbance soil sampling device, includes sampler barrel (1), its characterized in that: the one end opening of sampler barrel (1), it is connected with the expert to close to rotate on the opening end of sampler barrel (1) baffle (3) of sampler barrel (1), be equipped with on sampler barrel (1) and restrict baffle (3) and rotate the back and shelter from sampler barrel (1) open-ended locating part, the protruding locating part that is equipped with in sampler barrel (1) and is relative with the open end triggers trigger device (4) that the locating part removes to baffle (3) spacing under the extrusion of soil.
2. A low-disturbance soil sampling device according to claim 1, wherein: the sampling tube (1) is provided with a sliding groove (5) along the length direction of the sampling tube (1), the limiting piece comprises an unlocking rod (2) connected with the sliding groove (5) in a sliding manner, the sampling tube (1) is connected with a rotating shaft (7) in a rotating manner, one end of the rotating shaft (7) is inserted into the baffle (3) and is fixedly connected with the baffle (3), the unlocking rod (2) is vertically arranged towards the rotating shaft (7), one end of the unlocking rod (2) penetrates through the rotating shaft (7) along the central shaft direction of the rotating shaft (7) and is connected with the rotating shaft (7) in a sliding manner, one end of the unlocking rod (2) inserted into the rotating shaft (7) comprises a rectangular part (22) and a cylindrical part (21), the rectangular part (22) is close to the penetrating end of the rotating shaft (7), the cylindrical part (21) is close to the penetrating end of the rotating shaft (7), and the length of the rectangular part (22) is greater than that of the, the trigger device (4) comprises a trigger piece for driving the unlocking rod (2) to slide so that the rectangular part (22) extends out of the rotating shaft (7).
3. A low-disturbance soil sampling device according to claim 2, wherein: trigger piece includes pendulum rod (41), open on the inner wall of sampling tube (1) have with through-hole (6) of spout (5) intercommunication, the one end of pendulum rod (41) is followed through-hole (6) and is stretched into in spout (5), pendulum rod (41) with through-hole (6) swing is connected, along the length direction of unlocking lever (2) on unlocking lever (2) sunken recess (13), the one end that pendulum rod (41) stretched into spout (5) stretches into in recess (13) and with the cell wall butt of recess (13), the one end that recess (13) were kept away from in pendulum rod (41) stretches out in sampling tube (1), the inner wall of sampling tube (1) with fixedly connected with torsional spring (42) that resets between pendulum rod (41).
4. A low-disturbance soil sampling device according to claim 2, wherein: trigger device (4) still include spacing torsional spring (43), spacing torsional spring (43) cup joint in pivot (7), the one end of spacing torsional spring (43) with the inner wall fixed connection of sampler barrel (1), the other end of spacing torsional spring (43) with baffle (3) fixed connection.
5. A low-disturbance soil sampling device according to claim 2, wherein: the baffle (3) is provided with a plurality of blocks, and the baffle (3) is a plurality of around the circumference distribution of sampling tube (1).
6. A low-disturbance soil sampling device according to claim 5, wherein: baffle (3) become the arc setting, sunken on the inner wall of sampling tube (1) have accomodate groove (9), baffle (3) with accomodate groove (9) sliding connection.
7. A low-disturbance soil sampling device according to claim 2, wherein: fixedly connected with motor (10) on the inner wall of sampling tube (1), the axis of rotation of motor (10) with pivot (7) coaxial fixed, sampling device is still including installing the control circuit in sampling tube (1), control circuit includes:
the detection module (15) is arranged on the inner wall of the sampling cylinder (1) and used for detecting the soil height in the sampling cylinder (1) and outputting a detection signal;
a judging module (16) coupled to the detecting module (15) for receiving the converted signal and having a height threshold signal for outputting a control signal when the detected signal is greater than the threshold signal;
and the control module (17) is coupled with the judgment module (16) and responds to the control signal to control the motor (10) to rotate until the plurality of baffles (3) close the opening of the sampling cylinder (1).
8. A low-disturbance soil sampling device according to claim 2, wherein: the sampling tube (1) comprises a left tube (110) and a right tube (111), and the left tube (110) or the right tube (111) is provided with a limiting piece for limiting the separation of the left tube (110) and the right tube (111).
9. A low-disturbance soil sampling device according to claim 8, wherein: the limiting piece comprises a threaded fastener (12), and the threaded fastener (12) penetrates through the left barrel (110) and is in threaded connection with the right barrel (111).
10. A sampling method using the low-disturbance soil sampling device according to any one of claims 1 to 9, wherein:
step 1: aligning the sampling cylinder (1) to a position to be subjected to soil sampling;
step 2: striking the end opposite to the opening of the sampling cylinder (1) by using a striking tool to drive the sampling cylinder (1) into the ground;
and step 3: soil in the sampling cylinder (1) extrudes the swing rod (41) and pushes the swing rod (41) to swing, the swing rod (41) pushes the unlocking rod (2) to move downwards after swinging so that the rectangular part (22) penetrates out of the rotating shaft (7), and the baffle (3) swings outwards under the action of the limiting spring and cuts the soil at the opening of the sampling cylinder (1);
and 4, step 4: after the opening of the sampling cylinder (1) is closed by the baffle (3), the sampling cylinder (1) is taken out, the threaded fastener (12) on the sampling cylinder (1) is taken down, and the soil sample in the sampling cylinder (1) can be taken out by opening the sampling cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010144467.9A CN111207951B (en) | 2020-03-04 | 2020-03-04 | Low-disturbance soil sampling device and sampling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010144467.9A CN111207951B (en) | 2020-03-04 | 2020-03-04 | Low-disturbance soil sampling device and sampling method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111207951A true CN111207951A (en) | 2020-05-29 |
| CN111207951B CN111207951B (en) | 2022-03-11 |
Family
ID=70789857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010144467.9A Active CN111207951B (en) | 2020-03-04 | 2020-03-04 | Low-disturbance soil sampling device and sampling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111207951B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578000A (en) * | 2020-12-14 | 2021-03-30 | 浙江海洋大学 | Device based on resistance method short-term test soil oil pollution |
| CN113405841A (en) * | 2021-06-17 | 2021-09-17 | 承德石油高等专科学校 | Sampling device for field geology practice |
| CN113567181A (en) * | 2021-08-03 | 2021-10-29 | 沣田宝农业科技有限公司 | Saline and alkaline land is administered and is used sampling test device |
| CN114112491A (en) * | 2021-11-16 | 2022-03-01 | 深圳大学 | Coring and cutting sealing device and sampling device |
| CN115389253A (en) * | 2022-07-08 | 2022-11-25 | 内蒙古生态环境科学研究院有限公司 | Lake sediment collection device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040079550A1 (en) * | 2002-10-16 | 2004-04-29 | Lange James E. | Locking split barrel sampler and soil sampling system |
| AU2005211583A1 (en) * | 2004-09-24 | 2006-04-13 | David John Mills | Soil sampling apparatus |
| CN204789028U (en) * | 2015-07-13 | 2015-11-18 | 山东省农业科学院农产品研究所 | Soil sampler |
| US20160153869A1 (en) * | 2013-07-18 | 2016-06-02 | Cccc Third Harbor Consultants Co., Ltd | Silty floating mud collection device |
| CN108020441A (en) * | 2018-01-18 | 2018-05-11 | 中国石油大学(华东) | It is a kind of can back cover unconsolidated sediment sampler |
| CN108036962A (en) * | 2018-01-18 | 2018-05-15 | 中国石油大学(华东) | A kind of column shaped deposit sampler |
| CN207703521U (en) * | 2018-01-13 | 2018-08-07 | 银广厦集团有限公司 | Horizontal orientation cohesiveless soil sampling instrument |
| CN108801686A (en) * | 2018-08-08 | 2018-11-13 | 寇卓雷 | A kind of efficient soil sampling apparatus |
| CN109030078A (en) * | 2018-09-03 | 2018-12-18 | 江苏铭城建筑设计院有限公司 | A kind of soil sample collector |
| CN109975063A (en) * | 2019-04-03 | 2019-07-05 | 安徽省农业科学院棉花研究所 | A kind of portable stratified soil sampler of effort-saving |
| CN110132646A (en) * | 2019-06-19 | 2019-08-16 | 周慧 | A kind of soil remediation sampling rod structure and sampler |
-
2020
- 2020-03-04 CN CN202010144467.9A patent/CN111207951B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040079550A1 (en) * | 2002-10-16 | 2004-04-29 | Lange James E. | Locking split barrel sampler and soil sampling system |
| AU2005211583A1 (en) * | 2004-09-24 | 2006-04-13 | David John Mills | Soil sampling apparatus |
| US20160153869A1 (en) * | 2013-07-18 | 2016-06-02 | Cccc Third Harbor Consultants Co., Ltd | Silty floating mud collection device |
| CN204789028U (en) * | 2015-07-13 | 2015-11-18 | 山东省农业科学院农产品研究所 | Soil sampler |
| CN207703521U (en) * | 2018-01-13 | 2018-08-07 | 银广厦集团有限公司 | Horizontal orientation cohesiveless soil sampling instrument |
| CN108020441A (en) * | 2018-01-18 | 2018-05-11 | 中国石油大学(华东) | It is a kind of can back cover unconsolidated sediment sampler |
| CN108036962A (en) * | 2018-01-18 | 2018-05-15 | 中国石油大学(华东) | A kind of column shaped deposit sampler |
| CN108801686A (en) * | 2018-08-08 | 2018-11-13 | 寇卓雷 | A kind of efficient soil sampling apparatus |
| CN109030078A (en) * | 2018-09-03 | 2018-12-18 | 江苏铭城建筑设计院有限公司 | A kind of soil sample collector |
| CN109975063A (en) * | 2019-04-03 | 2019-07-05 | 安徽省农业科学院棉花研究所 | A kind of portable stratified soil sampler of effort-saving |
| CN110132646A (en) * | 2019-06-19 | 2019-08-16 | 周慧 | A kind of soil remediation sampling rod structure and sampler |
Non-Patent Citations (1)
| Title |
|---|
| 李永绍: "月球探测表层采样器的研究", 《中国优秀硕士学位论文全文数据库 基础科学辑》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578000A (en) * | 2020-12-14 | 2021-03-30 | 浙江海洋大学 | Device based on resistance method short-term test soil oil pollution |
| CN112578000B (en) * | 2020-12-14 | 2023-08-01 | 浙江海洋大学 | Device based on resistance method short-term test soil oil pollutes |
| CN113405841A (en) * | 2021-06-17 | 2021-09-17 | 承德石油高等专科学校 | Sampling device for field geology practice |
| CN113405841B (en) * | 2021-06-17 | 2022-09-13 | 承德石油高等专科学校 | Sampling device for field geology practice |
| CN113567181A (en) * | 2021-08-03 | 2021-10-29 | 沣田宝农业科技有限公司 | Saline and alkaline land is administered and is used sampling test device |
| CN113567181B (en) * | 2021-08-03 | 2023-12-12 | 沣田宝农业科技有限公司 | Saline and alkaline land is administered with sample detection device |
| CN114112491A (en) * | 2021-11-16 | 2022-03-01 | 深圳大学 | Coring and cutting sealing device and sampling device |
| CN114112491B (en) * | 2021-11-16 | 2023-09-19 | 深圳大学 | Coring cutting-off sealing device and sampling device |
| CN115389253A (en) * | 2022-07-08 | 2022-11-25 | 内蒙古生态环境科学研究院有限公司 | Lake sediment collection device |
| CN115389253B (en) * | 2022-07-08 | 2023-08-29 | 内蒙古生态环境科学研究院有限公司 | Lake sediment collection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111207951B (en) | 2022-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111207951B (en) | Low-disturbance soil sampling device and sampling method thereof | |
| CN111912955B (en) | Soil humidity data acquisition equipment | |
| CN207231822U (en) | A kind of soil collection device | |
| CN113567185B (en) | Geological rock soil investigation intensity test sampling device | |
| CN110514467B (en) | Intelligent soil layered sampling equipment and method | |
| CN209992212U (en) | Soil detection device | |
| CN211740650U (en) | Soil collecting and sampling device for agricultural planting detection | |
| CN219456156U (en) | Soil heavy metal content short-term test equipment | |
| CN110823635A (en) | Sampling device for soil remediation that can gather different degree of depth soil | |
| CN216559812U (en) | Agricultural is arable land and is administered sampling equipment with soil | |
| CN115266204A (en) | Soil sampling device for full-shading sample and using method | |
| CN111413486B (en) | Soil health rapid detection technical device | |
| CN214749010U (en) | Sampling head and sampling vehicle | |
| CN210071380U (en) | Geological survey detection device | |
| CN112781922A (en) | Soil sample collection system | |
| CN208833536U (en) | A kind of geotechnical engineering investigation sampler | |
| CN209927503U (en) | Manual sampler for surface soil | |
| CN214224583U (en) | A pollute soil sample sampling device for environmental protection monitoring | |
| CN218546756U (en) | Drug detector convenient for storing detection samples | |
| CN217717029U (en) | Agricultural technology detects uses soil sampling device | |
| CN218002971U (en) | Soil sampling device for environmental soil detection | |
| CN218330644U (en) | Soil pollution detection device for environmental pollution data integrated management | |
| CN219121733U (en) | Soil composition detects sampling device that agricultural production used | |
| CN219201111U (en) | Concrete strength detection device | |
| CN215678390U (en) | Environmental protection is with novel ecological environment monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |