CN113375960A - Pedal-assisted double-petal-cylinder-shaped soil sampler - Google Patents
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- CN113375960A CN113375960A CN202110223547.8A CN202110223547A CN113375960A CN 113375960 A CN113375960 A CN 113375960A CN 202110223547 A CN202110223547 A CN 202110223547A CN 113375960 A CN113375960 A CN 113375960A
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- 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
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a pedal-assisted double-petal barrel type soil sampler. The soil sampler has the advantages of simple structure, convenience in carrying, time and labor saving, little disturbance to original soil, easiness in separating a sample from the sampling cylinder, capability of obtaining a complete soil column sample for both high-viscosity soil and extremely loose soil, and great improvement on the efficiency and quality of sampling work. The sampling device comprises a pedal plate, a fixing ring, a tensile fiber belt, a cutting ring, a sampling cylinder, a fixing snap ring, a screw rod and a handle, wherein the pedal plate is connected with the fixing ring through the tensile fiber belt; the sampling cylinder with the cutting ring arranged at the lower end is a cylinder consisting of two semi-annular cylinder bodies, the upper end of the sampling cylinder is connected with the fixed snap ring through a cylindrical bulge and a clamping groove, a double-disc gasket and a conical pressure head are arranged in a cavity in the fixed snap ring, the conical pressure head capable of rotating on the double-disc gasket is connected with the bottom end of the screw rod, and the top end of the screw rod is connected with the handle; the fixing ring is arranged on the screw rod between the handle and the fixing clamp ring and rotates relative to the screw rod.
Description
Technical Field
The invention relates to a soil sampler, in particular to a pedal-assisted double-petal barrel type soil sampler.
Background
The collection of soil profile samples is the basis of research works such as soil system classification investigation, soil configuration analysis, soil fertility physical property research, material migration and transformation in soil, soil ecological investigation and the like, and a columnar sample is usually collected by an earth drilling method in the work. Traditional sampling soil auger generally comprises the cutting ring of bottom, the sampling cylinder that links to each other with the cutting ring and the handle on upper portion, when taking the soil sample, the handle is held to sampler both hands, rotate simultaneously and press down hard, make the soil auger get into deep soil downwards, when soil texture is more hard real-time, must strike downwards hard with the heavy object and just can accomplish the sampling, such sampling mode is wasted time and energy very much, and the striking of heavy object still destroys sample thief and disturbance soil horizon easily, influences the reliability of sampling achievement. In addition, for a soil layer with high compactness or high viscosity, the soil sample collected by the tubular sampler is difficult to take out, part of surface soil can be lost, and different soil samples can be mixed during multiple sampling; for soil with a particularly loose structure, soil samples collected by the tubular sampler are easy to scatter when the samples are taken out, and complete columnar samples are difficult to obtain.
In order to achieve the purpose of saving time and labor, a sampler generally adopts a mechanical driving or inertia vibration mode, for example, application number CN201611113814.1 discloses a layered multifunctional soil sampler which utilizes hydraulic pressure to save labor, and adopts a hydraulic transmission mode to achieve the purpose of saving labor, but the sampler needs to anchor a hydraulic cylinder on the ground, when a soil sample is collected on the spot, the soil surface layer is usually loose and cannot provide enough anchoring force, so the labor-saving sampler is not practical; the purpose of saving manpower is achieved by utilizing inertia force generated by reciprocating and synchronous movement of a heavy object, for example, an internal combustion circumferential vibration conveniently-detachable soil sampler disclosed in application number CN2014203228520.0 mainly adopts a diesel engine to drive an eccentric block to rotate at a high speed to generate a vibration force to drive a sampling cylinder to go deep into soil, and the design obviously has the problems of high manufacturing cost, large equipment weight and disturbance of the soil due to the vibration force.
In order to achieve the aim of conveniently taking out soil samples, a sampler generally adopts a movable pushing device to push the soil samples out of a sampling cylinder, for example, a pushable soil drill disclosed in application number CN201320716753.3 is additionally provided with a bulldozing blade and a bulldozing rod in the sampling cylinder, so that the collected soil can be pushed out of a drill bit, the characteristics of a cylindrical soil sample with a certain depth are maintained, the sampler is suitable for sampling sandy farmland, but if the soil with sticky texture is encountered, the soil in the drilling cylinder is difficult to push out manually due to large friction resistance between the soil and the inner wall of the drilling cylinder, or the structure of an original soil column is changed even if the soil is pushed out vigorously by means of a tool, and the quality of a sampling result is influenced.
Disclosure of Invention
Aiming at the problems, the invention provides a pedal-assisted bivalve cylinder type soil sampler which is simple in structure, convenient to carry, time-saving and labor-saving in operation, small in original soil disturbance, easy in separation of a sample from a sampling cylinder, capable of obtaining a complete soil column sample for high-viscosity soil and extremely loose soil and greatly improving the efficiency and quality of sampling work.
In order to achieve the purpose, the invention adopts the following technical scheme: a pedal-assisted bivalve barrel type soil sampler comprises a pedal, a fixing ring, a tensile fiber band, a cutting ring, a sampling barrel, a fixing snap ring, a screw and a handle, wherein a round hole is formed in the middle of the pedal, and the pedal and the fixing ring are connected through the tensile fiber band; the sampling cylinder is a cylinder consisting of two semi-annular cylinder bodies, the lower end of the sampling cylinder is connected with the cutting ring, the outer wall of the upper end of the sampling cylinder is provided with a cylindrical bulge, the fixed snap ring is provided with a clamping groove, the sampling cylinder is connected with the fixed snap ring through the cylindrical bulge and the clamping groove, a double-disc gasket and a conical pressure head are arranged in a cavity in the fixed snap ring, the conical pressure head capable of rotating on the double-disc gasket is connected with the bottom end of the screw, and the top end of the screw is connected with the handle; the fixing ring is arranged on the screw rod between the handle and the fixing clamp ring and rotates relative to the screw rod.
As a further improvement of the invention, the sampling cylinder is connected with the cutting ring through threads; the cutting ring is convenient to replace, and the sample can be conveniently taken out and the cutting ring can be conveniently cleaned.
As a further improvement of the invention, the tensile fiber belts respectively connected with the pedal and the fixing ring are connected and disconnected through the lock catch; the disassembly and assembly are convenient, and the adjustment is quick.
As a further improvement of the invention, the material of the bivalve gasket is polytetrafluoroethylene; pressure resistance, abrasion resistance and certain lubricating effect.
As a further improvement of the invention, the conical pressure head is welded and fixed with the screw; firm and durable, and convenient to manufacture.
As a further improvement of the invention, the cross section of the top end of the screw rod is rectangular, a square hole corresponding to the top end of the screw rod is arranged in the middle of the connecting rod, the screw rod is fixed with the connecting rod through the square hole, the gland and the screw, and the handle is respectively connected with the two ends of the connecting rod through threads; easy dismounting, according to the sample condition, realize fast assembly or dismantle unnecessary spare part.
As a further improvement of the invention, a gland is fixed on the top of the fixed snap ring through a screw, a screw hole is arranged in the middle of the gland, and the aperture of the screw hole is larger than the outer diameter of the screw and smaller than the outer diameter of the conical pressure head; the conical pressure head can only rotate in the cavity of the fixing clamping ring, the disassembly and the assembly are convenient, and convenient conditions are provided for replacing the bivalve conical gasket.
As a further improvement of the invention, the gland is provided with a bubble type level.
As a further improvement of the invention, a shaft pin is arranged in the cutting ring along the diameter direction, two ends of the shaft pin are fixed with the inner wall of the cutting ring, and two baffle plates which rotate relative to the shaft pin are arranged on the shaft pin.
Advantageous effects of the invention
Compared with the existing soil sampler, the soil sampler has the advantages of simple structure, convenient carrying, time and labor saving, small disturbance to original soil, easy separation of the sample from the sampling cylinder, convenient cleaning and capability of obtaining a complete soil column sample for soil with high viscosity and extremely loose soil, and the concrete description is as follows:
1. the sampling cylinder is formed by combining two semi-annular cylinder bodies with the same diameter and the same thickness, namely a bivalve type sampling cylinder, wherein the upper part of the bivalve type sampling cylinder is provided with a cylindrical bulge, and the lower part of the bivalve type sampling cylinder is provided with threads. When the soil sample sampling device is used, the two cylinder bodies are inserted into the fixing clamping ring together and are rotated and locked, the lower part of the sampling cylinder is in threaded connection with the cutting ring, and after a soil sample is collected, the sampling cylinder and the cutting ring are unscrewed, so that a complete soil column sample can be conveniently obtained on the premise of not disturbing the soil sample; meanwhile, the sampling cylinder and the cutting ring can be conveniently cleaned by adopting the structure, so that the pollution of the sample caused by repeated sampling is effectively prevented, and the accuracy and the reliability of sampling are ensured;
2. the sampling device adopts the mode of pedal fixation and screw assistance for sampling, and only needs to place the pedals, install the tensile fiber belt, pedal on the pedals by two feet and rotate the handle during sampling. The weight of a sampler is utilized, so that the sampler is time-saving and labor-saving, the parts such as a balance weight, an anchoring part and the like are saved, the manufacturing and using cost is low, the weight of the sampler is reduced, the sampler is more convenient to carry, and the sampler is quicker to sample;
3. during sampling, in order to reduce disturbance to an original soil layer, the sampling cylinder is required to be rotated as few as possible, but when the density of the sampled soil is high and the viscosity is high (namely, the resistance is high), the sampling can be smoothly completed by rotating the sampling cylinder. According to the sampling device, the sampling cylinder is clamped through the clamping groove in the lower half part of the fixed clamping ring, the double-disc washer and the conical pressure head in contact with the top surface are placed in the cylindrical cavity in the upper part of the fixed clamping ring, when the resistance of soil is small, the positive pressure between the double-disc washer and the conical pressure head is small, the friction force is small, the conical pressure head slides on the double-disc washer (namely dynamic friction), only the conical pressure head rotates and descends, and the sampling cylinder only descends and does not rotate; when the resistance of soil is larger, the positive pressure between the bivalve gasket and the conical pressure head is larger, the friction force is also larger, at the moment, the conical pressure head and the bivalve gasket are locked (namely static friction), the conical pressure head rotates and descends, and the sampling cylinder rotates and descends along with the conical pressure head to finish sampling. That is to say, the invention automatically identifies the resistance of the soil through a special mechanical structure, the sampling cylinder automatically rotates and descends or does not rotate, and the sampling process is completed under the condition of minimal disturbance of the undisturbed soil;
4. the bubble-shaped level is arranged on the upper surface of the fixed clamping ring, and a sampling operator can judge whether the posture of the sampling cylinder is vertical or not by observing whether bubbles of the level are centered or not at any time, so that the accuracy of sampling is ensured;
5. the lower part of the sampling cylinder is connected with the cutting ring through threads, so that the cutting ring can be conveniently replaced to adapt to different sampling conditions. For very loose sandy soil, a cutting ring with a baffle is used, the sampling cylinder descends during sampling, the baffle is folded upwards under the action of the soil, and after sampling, when the sampling cylinder ascends, the folded baffle is opened to two sides to be horizontal, so that the soil sample is effectively prevented from sliding off. For very loose sandy soil, the invention can still obtain a complete soil column sample.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
FIG. 4 is a view in the direction of P of FIG. 1;
FIG. 5 is a schematic view of the ring knife configuration with the flapper in a folded condition;
fig. 6 is a top view of fig. 5.
Detailed Description
The sampling device comprises a pedal 9, a tensile fiber belt 6, a cutting ring 14, a sampling cylinder 8, a fixing snap ring 5, a fixing ring 11, a screw rod 4, a connecting rod 2 and a handle 1, wherein a round hole 91 is formed in the middle of the pedal 9, and the fixing ring 11 is arranged on the screw rod 4 between the connecting rod 2 and the fixing snap ring 5 and is rotatably connected with the screw rod 4. The two ends of the pedal plate 9 and the two ends of the fixing ring 11 are respectively connected with a tensile fiber belt 6, and the two tensile fiber belts 6 which are respectively arranged on the same side of the pedal plate 9 and the fixing ring 11 are connected and disconnected through a lock catch 7. The sampling cylinder 8 is a cylinder consisting of two semi-annular cylinder bodies with the same structure and size, the lower end of the sampling cylinder 8 is connected with the cutting ring 14 through threads, the cutting ring 14 can be a universal cutting ring or a cutting ring 14 with foldable baffles, a shaft pin 142 is arranged in the cutting ring 14 along the diameter direction, two ends of the shaft pin 142 are fixed with the inner wall of the cutting ring 14, the shaft pin 142 is provided with 2 semi-annular baffles 141, and the baffles 141 can be folded upwards by rotating around the shaft pin 142 and can also be horizontally opened towards two sides. Two cylindrical protrusions 81 are arranged on the outer wall of one end, far away from the cutting ring 14, of the sampling cylinder 8, a clamping groove 51 is formed in the fixed clamping ring 5, and the sampling cylinder 8 is fixed with the fixed clamping ring 5 through the cylindrical protrusions 81 at the upper end of the sampling cylinder 8 and the clamping groove 51 of the fixed clamping ring 5. A gland 12 is fixed on the top of the fixed snap ring 5 through a screw, a screw hole is arranged in the middle of the gland 12, the aperture of the screw hole is larger than the outer diameter of the screw 4 and smaller than the outer diameter of the conical pressure head 41, and a bubble type level 10 is arranged on the upper surface of the gland 12. The cavity in the fixed snap ring 8 is internally provided with a bivalve gasket 13 and a conical pressure head 41, the bivalve gasket 13 is made of polytetrafluoroethylene, the top surface of the bivalve gasket 13 is a conical concave surface corresponding to the conical pressure head 41, the bivalve gasket 13 is composed of two same petal-shaped structures separated by a vertical surface passing through a conical vertex, and the conical pressure head 41 can rotate on the bivalve gasket 13. Conical pressure head 41 passes through welded fastening with the bottom of screw rod 4, and the cross-section on screw rod 4 top is the rectangle, and connecting rod 2 middle part is provided with the corresponding square hole in top with screw rod 4, and connecting rod 2 top surface is provided with gland 3, and the screw passes the hole on screw rod 4 gland 3 and fixes on screw rod 4 in the square hole, makes screw rod 4 and connecting rod 2 can realize quick assembly disassembly. The handle 1 is respectively connected with the two ends of the connecting rod 2 through threads.
Before use, the two semi-annular cylinder bodies of the sampling cylinder 2 are inserted into the fixing snap ring 4 together and are screwed and locked, and the annular knife 14 is arranged at the bottom of the sampling cylinder 2.
During sampling, the pedal plate 9 is firstly placed on the ground (at the moment, the pedal plate is not required to be completely horizontal), and the mounted cutting ring 14 is placed at the position of the circular hole 91 in the middle of the pedal plate 9. The tensile fiber band 6 is respectively passed through the fixing holes on the pedal plate 9 and the fixing ring 11 and is locked by the locking buckle 7, and the sampling cylinder 8 is observed and controlled to be basically vertical through the bubble level 10 on the fixing ring 11 during locking. Then, a sampler steps on the pedal plate 9 with two feet, holds the two handles 1 with two hands, observes the bubble level 10 on the fixing ring 11 with eyes, rotates the handles 1 clockwise, at the moment, the screw rod 4 rotates and descends in the fixing ring 11, does not need to press down with force, the double-disc gasket 13 is in sliding contact with the conical pressure head 41, can automatically respond to the resistance of soil, and finishes the sampling process under the condition of disturbing the original soil as little as possible. After the sampling depth is reached, the fastening buckle 7 on the tensile fiber belt 6 is unlocked, and the handle 1 is slowly lifted upwards until the cutting ring 14 is completely separated from the ground. Rotating the sampling cylinder 8, taking out the sampling cylinder from the fixed snap ring 5, rotating the cutting ring 14 off, and dividing the sampling cylinder 8 into two parts to obtain a complete cylindrical soil sample. And repeating the steps to finish sampling for multiple times.
If the soil at the known sampling site is extremely loose sandy soil, a cutting ring 14 with a baffle 141 is used. If judge and press through the both hands and can easily accomplish sample work, can also choose not to assemble running-board 9, tensile fibre area 6, can demolish solid fixed ring 11 even, it is more convenient to carry. After the sampling depth is reached, the sampling cylinder 8 is lifted upwards slowly, and at the moment, the baffle 141 in the cutting ring 14 is in a horizontal state, so that the soil sample is prevented from sliding off. After the cutting ring 14 is lifted out of the ground surface, the sampling cylinder 8 is rotated and taken out of the fixed snap ring 5, the cutting ring 14 is rotated down, and the sampling cylinder 8 is separated to obtain a complete columnar soil sample. And repeating the steps to finish sampling for multiple times.
Claims (9)
1. A pedal-assisted bivalve barrel type soil sampler is characterized by comprising a pedal plate, a fixing ring, a tensile fiber band, a cutting ring, a sampling barrel, a fixing snap ring, a screw and a handle, wherein a round hole is formed in the middle of the pedal plate, and the pedal plate is connected with the fixing ring through the tensile fiber band; the sampling cylinder is a cylinder consisting of two semi-annular cylinder bodies, the lower end of the sampling cylinder is connected with the cutting ring, the outer wall of the upper end of the sampling cylinder is provided with a cylindrical bulge, the fixed snap ring is provided with a clamping groove, the sampling cylinder is connected with the fixed snap ring through the cylindrical bulge and the clamping groove, a double-disc gasket and a conical pressure head are arranged in a cavity in the fixed snap ring, the conical pressure head capable of rotating on the double-disc gasket is connected with the bottom end of the screw, and the top end of the screw is connected with the handle; the fixing ring is arranged on the screw rod between the handle and the fixing clamp ring and rotates relative to the screw rod.
2. The pedal-assisted bivalve cylinder soil sampler of claim 1 wherein the sampling cylinder is threadably connected to the cutting ring.
3. The pedal-assisted bivalve type soil sampler according to claim 1 wherein the tensile fiber bands connected to the pedal plate and the fixing ring are connected and disconnected by a locking buckle.
4. The pedal-assisted bivalve cylinder soil sampler of claim 1 wherein the bivalve washer is made of teflon.
5. The pedal-assisted bivalve cylindrical soil sampler of claim 1 wherein the conical ram is welded to the screw.
6. The pedal-assisted dual-petal cylinder type soil sampler as claimed in claim 1 or 5, wherein the top end of the screw rod has a rectangular cross section, the middle part of the connecting rod is provided with a square hole corresponding to the top end of the screw rod, the screw rod is fixed with the connecting rod through the square hole, the gland and the screw, and the handle is respectively connected with the two ends of the connecting rod through threads.
7. The pedal-assisted bivalve cylinder soil sampler as claimed in claim 1 wherein the top of the retaining ring is fixed with a gland through screws, the middle of the gland is provided with a screw hole, the diameter of the screw hole is larger than the outer diameter of the screw and smaller than the outer diameter of the conical head.
8. The pedal-assisted bivalve cartridge soil sampler of claim 7 wherein the gland is provided with a bubble-type level.
9. The pedal-assisted dual-petal cylindrical soil sampler as claimed in claim 1, wherein a shaft pin is provided in the ring cutter in a diameter direction, both ends of the shaft pin are fixed to the inner wall of the ring cutter, and two baffle plates are provided on the shaft pin for rotating relative to the shaft pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110223547.8A CN113375960B (en) | 2021-03-01 | 2021-03-01 | Pedal-assisted double-petal-cylinder-shaped soil sampler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110223547.8A CN113375960B (en) | 2021-03-01 | 2021-03-01 | Pedal-assisted double-petal-cylinder-shaped soil sampler |
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| CN113375960A true CN113375960A (en) | 2021-09-10 |
| CN113375960B CN113375960B (en) | 2022-07-26 |
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-
2021
- 2021-03-01 CN CN202110223547.8A patent/CN113375960B/en active Active
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| GB357025A (en) * | 1929-12-18 | 1931-09-17 | Us Metals Refining Company | Improvements in or relating to apparatus for taking samples of metal ingots slabs or the like |
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| CN207019933U (en) * | 2017-04-18 | 2018-02-16 | 中国科学院地理科学与资源研究所 | A kind of portable earth boring auger |
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| CN207976298U (en) * | 2018-03-02 | 2018-10-16 | 大连诚泽检测有限公司 | A kind of novel portable ambient soil sampler |
| CN108951596A (en) * | 2018-08-31 | 2018-12-07 | 清远市知途自动化科技有限公司 | One kind is for construction site construction soil automatic sampling device |
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