CN210198760U - Soil layered sampling device - Google Patents

Abstract

The utility model relates to a soil stratified sampling device, which comprises a base, wherein a channel is communicated with the lower end surface of the base, a soil drill group is connected in the channel in a sliding manner, the soil drill group comprises a plurality of cylindrical soil drills, a plurality of buckling grooves are formed above the outer peripheral surface of each cylindrical soil drill, a plurality of buckling blocks are protruded downwards on the outer peripheral surface of each cylindrical soil drill, the buckling blocks are fixedly buckled with the buckling grooves, a link mechanism for downwards extruding the soil drill group is arranged above the base, and the cylindrical soil drills are detachably connected with the link mechanism; the outer peripheral surface of the base is provided with an opening communicated with the channel. Through adopting above-mentioned technical scheme, be favorable to sparingly inserting the required strength in ground with the soil drill group, simultaneously, the equidistance layering of being convenient for and collecting soil sample for easy and simple to handle is favorable to reducing the soil sample and detects the condition because of soil sample layering inconsistent and produce the error, makes soil sampling operation more simple and convenient and scientific.

Description

Soil layered sampling device

Technical Field

The utility model belongs to the technical field of soil sampling equipment technique and specifically relates to a soil layering sampling device is related to.

Background

Soil sampling is an important link of a soil information acquisition technology, the randomness of a sampling position, the equal amount of soil collected every time and soil pollution prevention in the soil collection process should be paid attention to in the soil sampling process. Soil sampling tools have been developed to improve the convenience of soil collection.

The soil sampling tool commonly used at present comprises a soil sampling drill, a shovel and a shovel, wherein the soil sampling drill consists of a drill bit made of hard materials and a handle. The cylindrical soil drill is commonly used as the soil drill, and the cylindrical soil drill is inserted into soil, so that the soil in the cylindrical drill bit is prevented from scattering due to the movement of the soil drill when the soil drill fetches the soil.

The conventional cylindrical soil sampling drill is generally inserted into soil to a certain depth in an extrusion mode, and then the cylindrical soil sampling drill is taken out to collect a soil sample in the cylindrical soil sampling drill for analysis; in the operation process, the soil sample can be taken out by consuming larger strength and more time, and meanwhile, the sampled soil is not layered clearly enough and cannot be layered with equal depth, so that the layering depth is difficult to keep consistent. Therefore, there is room for improvement.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a soil layering sampling device has the advantage that the operation is more laborsaving when soil sampling, easily equidistance layering soil.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a soil layered sampling device comprises a base, wherein a channel penetrates through the lower end face of the base, a soil drill group is connected in the channel in a sliding mode, the soil drill group comprises a plurality of cylindrical soil drills, a plurality of buckling grooves are formed in the upper portions of the outer peripheral surfaces of the cylindrical soil drills, a plurality of buckling blocks protrude downwards on the outer peripheral surfaces of the cylindrical soil drills, the buckling blocks are buckled and fixed with the buckling grooves, a link mechanism for downwards extruding the soil drill group is arranged above the base, and the cylindrical soil drills are detachably connected with the link mechanism; the peripheral surface of the base is provided with an opening communicated with the channel.

By adopting the technical scheme, the base is a hollow cylinder, the lower end face of the base is communicated with the channel, the channel is communicated with the cavity of the base so as to facilitate the earth drill group to be in sliding connection in the channel, the outer peripheral face of the base is provided with the opening and is communicated with the cavity of the base and the channel so as to facilitate workers to install or disassemble the cylindrical earth drill in the cavity and the channel, the base is vertically arranged with the ground so that the channel is vertically arranged with the ground, and further the earth drill group is vertically arranged with the ground so that the earth drill group is vertically inserted into the ground, so that the condition that the inclination condition that the earth drill group is inserted into the ground every time is inconsistent and the soil sampling detection result is inconsistent is favorably reduced due to the fact that the earth drill group is obliquely inserted into the ground, the depth of soil taken out by the earth drill group every time can be kept consistent, and the; the buckling block is made of hard materials, so that the overall strength of the buckling block is improved conveniently, the situation that the buckling block falls off from the buckling groove in the process of being inserted into soil due to insufficient strength is reduced, and the stability of the overall structure in the process of clamping and fixing the buckling block and the buckling groove is improved; the lower end of the buckling block is integrally connected with a hook block, the hook block is arranged towards the axis of the cylindrical soil drill, the buckling groove is L-shaped and consists of a vertical groove and a transverse groove, the length direction of the vertical groove is consistent with the length direction of the cylindrical soil drill, the vertical groove is communicated with the upper end face of the cylindrical soil drill, the transverse groove is arc-shaped and is coaxially arranged with the axis of the cylindrical soil drill, the circumferential direction of the transverse groove is perpendicular to the length direction of the vertical groove, the vertical groove and the transverse groove can be used for clamping and sliding the hook block, when the hook block slides to the lower end face of the vertical groove, the hook block rotates around the axis of the cylindrical soil drill by rotating the cylindrical soil drill, the hook block is in sliding and clamping connection with the transverse groove until the hook block is abutted against the end face of the vertical groove far away from the transverse groove, so that two cylindrical soil drills which are adjacent up and down are mutually connected and fixed through the buckling block and the buckling groove, therefore, a plurality of cylindrical soil drills are mutually connected, the soil samples are collected, so that the same amount of soil samples are collected at different depth positions, the effect of layered sampling of the soil samples is further achieved, and the operation of layered sampling of the soil samples is more convenient and scientific; set up link mechanism through the top at the base to bore group and link mechanism with soil and can dismantle the connection, consequently, through the aforesaid setting, be favorable to sparingly inserting the required strength in ground with the soil group of boring, simultaneously, the equidistance layering of being convenient for and collecting soil sample, make easy and simple to handle, be favorable to reducing the soil sample and detect the condition because of soil sample layering nonconformity produces the error, make soil sampling operation more simple and convenient and scientific.

The utility model discloses further set up to: the link mechanism includes actuating lever and transfer line, the one end of actuating lever with the up end of base is articulated, actuating lever sliding connection has the slider, the one end of transfer line with the slider is articulated, the other end of transfer line with the soil auger group can dismantle the connection, the transfer line perpendicular and link up in the up end setting of base.

Through adopting above-mentioned technical scheme, be the cylinder through transfer line and actuating lever, the transfer line link up in the up end of base, and with the up end sliding connection of base. The slider is the cylinder of well expert, and the axis of slider and the coaxial setting of the axis of actuating lever, the one end an organic whole that the earth boring group was kept away from to the transfer line is connected with two branches, and two branches keep parallel with the transfer line, and two branches all are articulated with the slider. One end of the driving rod is hinged with the upper end face of the base, when the driving rod rotates downwards, the included angle between the driving rod and the upper end face of the base is gradually reduced, and then the sliding block is driven to slide towards the direction close to the hinged point of the driving rod, so that the driving rod pushes the cylindrical soil drill downwards to move downwards, and the cylindrical soil drill is conveniently inserted into soil; when the one end of the actuating lever upwards rotates, the included angle between the actuating lever and the base gradually becomes larger, and then the slider is driven to slide towards the direction away from the hinge joint of the actuating lever, so that the actuating lever pulls the cylindrical soil drill to move upwards, the cylindrical soil drill is taken out of soil conveniently, and the operation is more convenient and labor-saving.

The utility model discloses further set up to: the transfer line is kept away from the one end fixedly connected with round handle piece of slider, the transfer line rotates and is connected with the connecting block, the connecting block is in slide on the transfer line, the connecting block is located the top of round handle piece, the outer peripheral face of transfer line is provided with the external screw thread, transfer line threaded connection has swivel nut, swivel nut is located the top of connecting block, the outer peripheral face below arch of connecting block has a plurality of pieces of taking of detaining, detain the piece with the lock joint groove joint of cylindric boring is fixed.

By adopting the technical scheme, the round handle block is a cylinder, the connecting block is a cylinder with a circular groove at the lower end surface in a concave mode, the outer diameter of the connecting block is consistent with that of the cylindrical soil drill, when the buckling block is buckled with the soil drill group, the upper end surface of the round handle block is tightly abutted with the upper end surface of the groove, meanwhile, the lower end surface of the rotating nut is tightly abutted with the upper end surface of the connecting block, the connecting block slides in the length direction of the transmission rod when the transmission rod is pressed down by the connecting rod mechanism, power cannot be transmitted to the upper end surface of the soil drill group, and the soil drill group is difficult to insert into the ground; through setting up the hasp piece in the outer peripheral face below of connecting block, the structure of hasp piece is unanimous with the structure of hasp piece to it is fixed with the hasp groove lock joint that cylindric soil bored to be convenient for, and then improves connecting block and soil and bore group connection structure's stability, makes connecting block and cylindric soil bore to be connected fixedly and the convenience of dismantling the operation simultaneously.

The utility model discloses further set up to: the soil drill group is far away from the lower part of the cylindrical soil drill of the connecting rod mechanism and is detachably connected with an insertion head, a buckling groove is formed in the upper part of the outer peripheral surface of the insertion head, the buckling block is fixedly buckled with the buckling groove, and a chamfer is formed in the lower part of the outer peripheral surface of the insertion head.

By adopting the technical scheme, the insertion head is a hollow cylinder, the outer diameter of the insertion head is consistent with that of the cylindrical earth drill, the buckling groove is arranged above the outer peripheral surface of the insertion head, and the structure of the buckling groove is consistent with that of the buckling groove, so that the cylindrical earth drill below the earth drill group is fastened and fixed with the insertion head conveniently, and the insertion head is fixed by fastening and fixing the buckling block and the buckling groove; the lower end of the outer peripheral surface of the insertion head is provided with a chamfer, so that the contact area between the insertion head and the ground is reduced, the pressure of the insertion head on soil is increased, the operation of the earth drill group and the insertion head on the ground is more convenient, and meanwhile, the labor-saving effect is achieved.

The utility model discloses further set up to: the up end of base articulates there is the rotary joint, the rotary joint with the one end of actuating lever can be dismantled and be connected.

Through adopting above-mentioned technical scheme, through setting up the swivelling joint, set up the internal thread that supplies actuating lever one end threaded connection in the one end of swivelling joint to in actuating lever and swivelling joint threaded connection back, carry out the connecting rod transmission motion, insert or extract ground with the extrusion soil drill group, be convenient for simultaneously realize the function dismantled of actuating lever, be favorable to the actuating lever to dismantle the back of getting off, deposit and accomodate, and then be favorable to practicing thrift the usage space.

The utility model discloses further set up to: the cylindrical earth drill is characterized in that the buckling block is adjacent to the side face, close to the outer peripheral face, of the cylindrical earth drill, a rubber ball is arranged on the side face, close to the outer peripheral face, of the cylindrical earth drill, a ball groove is formed in the outer peripheral face of the cylindrical earth drill, and the rubber ball is fixedly connected with the ball groove in a clamped mode.

By adopting the technical scheme, the rubber ball is a ball body made of soft materials, the rubber ball is fixedly connected with the buckling block, when two cylindrical soil drills which are adjacent up and down are connected and fixed, when the lower end face of the hook block of the buckling block is abutted against the lower end face of the vertical groove, the cylindrical soil drills are rotated around the axis of the cylindrical soil drills to drive the buckling block to rotate together, so that the hook block slides in the transverse groove, and meanwhile, the rubber ball is extruded with the outer peripheral face of the cylindrical soil drills to generate deformation; in addition, when the buckling block is rotated in the direction, the rubber ball is separated from the ball groove due to deformation until the hook block is positioned in the vertical groove and is right opposite to the vertical groove, so that the operation of releasing the buckling and fixing state of two adjacent cylindrical soil drills is simpler and more convenient.

The utility model discloses further set up to: the inner peripheral surface of the channel is provided with a straight groove along the axis direction of the channel, a convex strip is protruded on the outer peripheral surface of the cylindrical soil drill, the convex strip is in sliding connection with the straight groove, and the straight groove is used for circumferentially limiting the convex strip.

Through adopting above-mentioned technical scheme, through setting up straight flute and sand grip for the sand grip slides with the straight flute joint, with the guidance quality that improves the native group's up-and-down motion of boring, when making the native group's up-and-down motion more smooth and easy, be favorable to reducing the circumstances that the native group turned motion of boring, so that bore through the cylindric soil of fixed below, then dismantle the cylindric soil of connecting block and top and bore, make the dismantlement of cylindric soil to bore and take out the operation more convenient.

The utility model discloses further set up to: a pedal is arranged below the outer peripheral surface of the base.

Through adopting above-mentioned technical scheme, through setting up the running-board, can be through trampling the running-board in order fixed baseplate for base and ground keep the vertical state, and then make cylindric drill bit insert soil perpendicularly, make the operation that the earth bores group insert ground more simple and convenient, simultaneously, be favorable to reducing because of link mechanism extrudes the atress inequality that the earth bores group and produce downwards, and lead to the condition of base slope, make the operation more simple and convenient.

The utility model discloses further set up to: handles are arranged at two ends of the driving rod.

Through adopting above-mentioned technical scheme, set up the handle through the tip at the actuating lever to improve the frictional force on handle surface, and then make actuating lever extrusion's operation down more simple and convenient.

To sum up, the utility model discloses following beneficial effect has:

1. the soil drilling group is connected with the soil drilling group in the channel in a sliding way through the arrangement of the channel and the soil drilling group; the connecting rod structure is arranged, so that the soil drill group can be conveniently inserted into the ground to collect soil samples, and meanwhile, the soil drill group is extruded by the connecting rod, so that the labor-saving effect is favorably achieved, and the operation is simple and convenient; meanwhile, the driving rod is conveniently pushed upwards and the earth drill group is conveniently pulled out;

2. by arranging the base and the opening, workers can conveniently install or detach the cylindrical soil drill at the opening, the channel is arranged perpendicular to the ground, and the soil drill group is further vertically inserted into the ground, so that the condition that the soil sampling detection result is inconsistent due to the fact that the soil drill group is obliquely inserted into the ground and the soil drill group is not uniformly inserted into the ground every time is reduced;

3. the round handle block and the connecting block are arranged, so that the connecting block and a buckling groove of the cylindrical soil drill can be buckled and fixed conveniently, the stability of a connecting structure of the connecting block and the soil drill set is improved, and meanwhile, the connecting block and the cylindrical soil drill are connected and fixed and are convenient to detach;

4. the insertion head is arranged to reduce the contact area between the insertion head and the ground so as to increase the pressure of the insertion head on the soil, and further the operation of inserting the earth drill group and the insertion head into the ground is more convenient; the rotary joint is arranged, so that the driving rod can be stored and stored after being detached, and the use space can be saved;

5. the upper cylindrical earth drill and the lower cylindrical earth drill are further fixed conveniently by arranging the ball grooves and the rubber balls, so that the clamping and fixing operation of the adjacent cylindrical earth drills is more convenient, and the structure is more stable; through setting up straight flute and sand grip, be favorable to improving the guidance quality of earth auger group up-and-down motion for earth auger group up-and-down motion is more smooth and easy.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is an exploded view of the present embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a partially enlarged view of fig. 2 at B.

Reference numerals: 1. a base; 11. an opening; 12. a channel; 13. a straight groove; 14. a foot pedal; 15. a cavity; 16. a through groove; 2. an earth drill group; 21. a cylindrical earth drill; 211. a convex strip; 22. a fastening groove; 221. a vertical groove; 222. a transverse slot; 23. a buckling block; 231. hooking the block; 232. a ball groove; 3. a link mechanism; 31. a drive rod; 311. a handle; 32. a transmission rod; 321. a round handle block; 322. a strut; 323. an external thread; 33. a slider; 4. rotating the nut; 5. connecting blocks; 51. buckling blocks; 52. a groove; 6. an insertion head; 61. buckling grooves; 62. chamfering; 7. a rotating joint; 71. a hinged block; 8. a rubber ball.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1 to 2, the soil stratified sampling device comprises a base 1, wherein the base 1 is a hollow cylinder, a passage 12 (shown in fig. 2) penetrates through the lower end surface of the base 1, an earth drill group 2 is slidably connected in the passage 12, and a link mechanism 3 for driving the earth drill group 2 to be inserted into or pulled out of the ground is arranged above the base 1.

The side of the base 1 is provided with an opening 11, the opening 11 is communicated with a cavity 15 of the base 1, the length direction of the opening 11 is consistent with the length direction of the base 1, a through groove 16 penetrates through the upper end face of the base 1, a pedal 14 is fixedly connected to the peripheral face of the base 1, the pedal 14 is respectively arranged on two sides of the axis of the base 1, and the lower end face of the pedal 14 is coplanar with the lower end face of the base 1.

Two articulated pieces 71 of up end fixedly connected with of base 1, link mechanism 3 includes actuating lever 31, handle 311 is installed to the one end of actuating lever 31, the other end threaded connection of actuating lever 31 has rotary joint 7, rotary joint 7 is the cylinder, rotary joint 7 keeps away from the one end of actuating lever 31 and articulates with two articulated pieces 71, actuating lever 31 is located between two articulated pieces 71, the outer peripheral face sliding connection of actuating lever 31 has slider 33, slider 33 articulates there is transfer line 32, two branches 322 of one end fixedly connected with of transfer line 32, branch 322 is articulated with sliding, slider 33 is located between two branches 322.

As shown in fig. 2 to 3, one end of the transmission rod 32, which is far away from the strut 322, penetrates through the through slot 16, the transmission rod 32 is slidably connected with the through slot 16, an external thread 323 is arranged on the outer circumferential surface of the transmission rod 32, and the rotary nut 4 is connected with the outer circumferential surface of the transmission rod 32 in a threaded manner. One end of the transmission rod 32, which is far away from the supporting rod 322, is fixedly connected with a round handle block 321, the round handle block 321 is a cylinder, and the axis of the round handle block 321 is coaxial with the axis of the transmission rod 32. The peripheral face of transfer line 32 is provided with connecting block 5, and connecting block 5 cup joints with transfer line 32. The connecting block 5 is a cylinder, a groove 52 (as shown in fig. 3) is recessed in the lower end face of the connecting block 5, the groove 52 is a cylinder, the diameter of the peripheral face of the groove 52 is larger than that of the peripheral face of the round handle block 321, the axis of the connecting block 5 and the axis of the round handle block 321 are coaxially arranged, and the connecting block 5 is located between the rotating nut 4 and the round handle block 321.

As shown in fig. 3 to 4, the earth drill group 2 includes a plurality of cylindrical earth drills 21, four fastening blocks 23 are fixedly connected to the lower end of the outer peripheral surface of the cylindrical earth drills 21, the four fastening blocks 23 are distributed at equal angles around the axis of the cylindrical earth drills 21, the lower portion of each fastening block 23 protrudes out of the lower end face of the cylindrical earth drill 21, a hook block 231 is integrally connected to the lower end face of each fastening block 23, and the hook block 231 is arranged towards the axis of the cylindrical earth drill 21. The side fixedly connected with rubber ball 8 that the outer peripheral face of buckle piece 23 is adjacent the lateral surface that the outer peripheral face of cylindric soil auger 21 is close to, the outer peripheral face of cylindric soil auger 21 is opened there is a ball groove 232, when buckle piece 23 is fixed with the buckle groove 22 joint of adjacent cylindric soil auger 21, rubber ball 8 is fixed with the ball groove 232 joint.

Four buckle blocks 51 are arranged below the connecting block 5, the lower part of each buckle block 51 protrudes out of the lower end face of the connecting block 5, the four buckle blocks 51 are distributed at equal angles around the axis of the connecting block 5, and the structure of each buckle block 51 is consistent with that of the buckle block 23.

Four buckling grooves 22 are formed in the upper end of the outer peripheral surface of the cylindrical soil drill 21, each buckling groove 22 comprises a vertical groove 221 and a transverse groove 222, each buckling groove 22 is L-shaped, each buckling groove 22 comprises a vertical groove 221 and a transverse groove 222, the length direction of each vertical groove 221 is consistent with that of the cylindrical soil drill 21, each vertical groove 221 is communicated with the upper end face of the cylindrical soil drill 21, one end of each vertical groove 221 is communicated with one end of each transverse groove 222, the circumferential direction of each transverse groove 222 is perpendicular to that of each vertical groove 221, and the hook block 231 is clamped and slides with the vertical grooves 221 and the transverse grooves 222.

The buckling blocks 23 of the cylindrical soil drills 21 are buckled and fixed with the buckling grooves 22 of the cylindrical soil drills 21 below, the cylindrical soil drills 21 are buckled and fixed with the buckling grooves 22 of the adjacent cylindrical soil drills 21 through the buckling blocks 23 to form the soil drill group 2, and the cross section of the soil drill group 2 is smaller than that of the channel 12. The buckling block 51 of the connecting block 5 is buckled and fixed with the buckling groove 22 at the upper end of the earth drill group 2.

As shown in fig. 2, two convex strips 211 (as shown in fig. 2) are protruded on the outer peripheral surface of the cylindrical earth auger 21, the two convex strips 211 are respectively arranged on two sides of the axial line of the base 1, two straight grooves 13 (as shown in fig. 2) are opened on the inner peripheral surface of the channel 12, the length direction of the straight grooves 13 is consistent with the length direction of the base 1, the two straight grooves 13 are respectively arranged on two sides of the axial line of the base 1, and the convex strips 211 of the earth auger set 2 are all arranged in alignment with each other.

The buckling block 23 of the cylindrical earth auger 21 below the earth auger group 2 is buckled with an insertion head 6, the insertion head 6 is a hollow cylinder, the upper end of the peripheral surface of the insertion head 6 is provided with four buckling grooves 61, the four buckling grooves 61 are distributed at equal angles around the axis of the insertion head 6, the structure of the buckling grooves 61 is consistent with that of the buckling grooves 22, and the lower end of the peripheral surface of the insertion head 6 is provided with a chamfer 62. The buckling block 23 of the cylindrical earth auger 21 below the earth auger group 2 is buckled and fixed with the buckling groove 61 of the insertion head 6. The outer diameters of the insertion head 6, the cylindrical earth auger 21 and the connecting block 5 are all the same.

The working conditions and principles of the embodiment are as follows:

during operation, when needing to gather soil sample at appointed degree of depth layering, first, place base 1 on subaerial, then buckle through detaining the piece 51 and detain groove 22 lock joint of cylindric soil auger 21 and fix below connecting block 5 for cylindric soil auger 21 is connected with connecting block 5, then buckle through detaining piece 23 and detain the groove 61 lock joint of inserting head 6 and fix below cylindric soil auger 21, then knob swivel nut 4, make swivel nut 4's lower terminal surface and the up end butt of connecting block 5, make the up end butt of round handle piece 321 and the bottom butt of connecting block 5's recess 52 simultaneously, with fixed connecting block 5 and soil auger group 2, reduce the circumstances that soil auger group 2 and connecting block 5 upwards slided along the length direction of transfer line 32.

Then, the foot pedal 14 is stepped on by both feet, and then the driving rod 31 is pressed down by hand, so that the driving rod 32 moves down and is inserted into the ground, thereby driving the earth boring unit 2 to be inserted into the ground through the insertion head 6 to collect a soil sample.

When the first cylindrical earth auger 21 is inserted into the ground to a certain depth and the soil sample is collected, the operation of pressing the driving rod 31 downward is stopped, then the nut 4 is turned by a knob at the opening 11 so that the abutment state of the nut 4 and the connecting block 5 is released, and then the connecting block 5 is rotated to release the fastening state of the cylindrical earth auger 21 and the connecting block 5.

Then, the buckling block 23 of the cylindrical soil auger 21 is buckled and fixed with the buckling groove 22 of the first cylindrical soil auger 21 above the first cylindrical soil auger 21, then the buckling block 51 of the connecting block 5 is buckled and fixed with the buckling groove 22 of the cylindrical soil auger 21 below the first cylindrical soil auger 21, then the lower end face of the rotating nut 4 is abutted with the upper end face of the connecting block 5 by turning the nut 4 by a knob, meanwhile, the upper end face of the round handle block 321 is abutted with the bottom end of the groove 52 of the connecting block 5, then the pedal plate 14 is stepped, the driving rod 31 is pushed downwards, and the soil auger set 2 is inserted into the ground to collect a soil sample.

According to the above operation, a plurality of cylindrical earth drills 21 are sequentially inserted into the ground while collecting soil samples. When soil samples are collected hierarchically at a designated depth, the soil collection operation is stopped, the foot pedal 14 is stepped on by foot, the drive rod 31 is pushed upward, the soil drill group 2 is moved upward until at least one cylindrical soil drill 21 leaves the ground, then the nut 4 is turned by a knob at the opening 11 to release the state that the nut 4 abuts against the connecting block 5, and then the connecting block 5 is rotated to make the buckle block 51 of the connecting block 5 and the buckle groove 22 of the cylindrical soil drill 21 buckle and fix.

Next, the upper cylindrical earth auger 21 is rotated to release the state where the fastening block 23 is fastened and fixed to the fastening groove 22 of the lower cylindrical earth auger 21, then the upper cylindrical earth auger 21 to collect the soil sample is taken out, then the transmission rod 32 is moved downward so that the fastening block 51 of the connection block 5 is fastened and fixed to the fastening groove 22 of the lower cylindrical earth auger 21, then the nut 4 is rotated by turning the knob so that the lower end surface of the nut 4 abuts against the upper end surface of the connection block 5 while the upper end surface of the shank block 321 abuts against the bottom end of the groove 52 of the connection block 5, and then the driving rod 31 is continuously pushed upward to pull out the upper cylindrical earth auger 21 of the earth auger set 2 to leave the ground.

After all the cylindrical earth drills 21 in the earth drill set 2 are sequentially pulled out of the ground in accordance with the above-described operation, the lowermost cylindrical earth drill 21 of the earth drill set 2 is rotated to release the state in which the engagement piece 23 of the cylindrical earth drill 21 is engaged with the engagement groove 61 of the insertion head 6, the insertion head 6 is removed, and the engagement piece 51 of the connection block 5 is engaged with the engagement groove 61 of the insertion head 6.

Therefore, the operation of collecting soil samples in a layered mode at a specified depth is completed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides a soil layering sampling device which characterized by: the soil drilling machine comprises a base (1), a channel (12) penetrates through the lower end face of the base (1), a soil drilling group (2) is connected in the channel (12) in a sliding mode, the soil drilling group (2) comprises a plurality of cylindrical soil drills (21), a plurality of buckling grooves (22) are formed in the upper portion of the outer peripheral face of each cylindrical soil drill (21), a plurality of buckling blocks (23) protrude downwards on the outer peripheral face of each cylindrical soil drill (21), the buckling blocks (23) are fixedly buckled with the buckling grooves (22), a link mechanism (3) capable of downwards extruding the soil drilling group (2) is arranged above the base (1), and the cylindrical soil drills (21) are detachably connected with the link mechanisms (3); the peripheral surface of the base (1) is provided with an opening (11) communicated with the channel (12).

2. A soil stratified sampling apparatus as claimed in claim 1, wherein: link mechanism (3) include actuating lever (31) and transfer line (32), the one end of actuating lever (31) with the up end of base (1) is articulated, actuating lever (31) sliding connection has slider (33), the one end of transfer line (32) with slider (33) are articulated, the other end of transfer line (32) with soil bores group (2) and can dismantle the connection, transfer line (32) perpendicular and link up in the up end setting of base (1).

3. A soil stratified sampling apparatus as claimed in claim 2, wherein: keep away from transfer line (32) one end fixedly connected with round handle piece (321) of slider (33), transfer line (32) are rotated and are connected with connecting block (5), connecting block (5) are in slide on transfer line (32), connecting block (5) are located the top of round handle piece (321), the outer peripheral face of transfer line (32) is provided with external screw thread (323), transfer line (32) threaded connection has swivel nut (4), swivel nut (4) are located the top of connecting block (5), the outer peripheral face below arch of connecting block (5) has a plurality of knot to take up piece (51), knot take up piece (51) with the lock joint groove (22) lock joint of cylindric boring earth (21) is fixed.

4. A soil stratified sampling apparatus as claimed in claim 1, wherein: the soil drill group (2) is far away from the lower part of a cylindrical soil drill (21) of the connecting rod mechanism (3) is detachably connected with an insertion head (6), a buckling groove (61) is formed in the upper part of the outer peripheral surface of the insertion head (6), a buckling block (23) is fixedly buckled with the buckling groove (61), and a chamfer (62) is formed in the lower part of the outer peripheral surface of the insertion head (6).

5. A soil stratified sampling apparatus as claimed in claim 2, wherein: the upper end face of the base (1) is hinged with a rotary joint (7), and the rotary joint (7) is detachably connected with one end of the driving rod (31).

6. A soil stratified sampling apparatus as claimed in claim 2, wherein: the lateral surface that the outer peripheral face of cylindric soil auger (21) is close to is provided with rubber ball (8) buckleing piece (23) and adjacent cylindric soil auger (21), ball groove (232) have been opened to the outer peripheral face of cylindric soil auger (21), rubber ball (8) with ball groove (232) joint.

7. A soil stratified sampling apparatus as claimed in claim 1, wherein: the inner circumferential surface of the channel (12) is provided with a straight groove (13) along the axial direction of the channel (12), a convex strip (211) is protruded on the outer circumferential surface of the cylindrical soil drill (21), the convex strip (211) is in sliding connection with the straight groove (13), and the straight groove (13) is used for limiting the convex strip (211) in the circumferential direction.

8. A soil stratified sampling apparatus as claimed in claim 1, wherein: a pedal (14) is arranged below the outer peripheral surface of the base (1).

9. A soil stratified sampling apparatus as claimed in claim 2, wherein: handles (311) are arranged at two ends of the driving rod (31).

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