CN112213149A

CN112213149A - Sampling equipment for silt soil

Info

Publication number: CN112213149A
Application number: CN202011184494.5A
Authority: CN
Inventors: 梅家亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-01-12

Abstract

The invention relates to the technical field of soil sampling, and discloses silt soil sampling equipment which comprises a shell, wherein two vertical rods which correspond to each other are fixedly arranged on the outer wall surface of the shell, a handle is arranged above the shell, the outer side of the handle is fixedly connected with the upper ends of the two vertical rods, a through hole penetrating through the shell is formed in the shell, a cross rod is loosened when silt needs to be taken out after collection is finished, a tension spring is pulled back at the moment, a driving block is enabled to move towards one side close to the through hole, then a gear is driven to rotate, a pushing block is driven to move towards one side far away from the through hole, the through hole is opened, and after the cross rod is loosened, a limiting block is attached to a limiting ring, so that the situation that a movable rod for twice directly falls into the inner part of a circular groove to influence the next use is avoided.

Description

Sampling equipment for silt soil

Technical Field

The invention relates to the technical field of soil sampling, in particular to a silt soil sampling device.

Background

Soil sampling refers to a method for collecting soil samples, and the existing part of the adopted soil is useful for detecting the metal content in the soil of a vehicle, and the part of the soil is used for detecting the pond and the surrounding environment by collecting sludge at the sides of the pond.

Present partial soil sampling device, one is a pipe-shaped piece, insert inside its direct soil of going down, then extract, rotatory sampling device, make its opening up, let soil leave sampling device's inside in, but when taking a sample to pond limit silt, because the precipitate of every layer silt is different, therefore the process that the later stage detected is also different, need remain to every layer, current earth sampling device, need rotate it, make the collection mouth of gathering pipe rotatory a week from bottom to top, but because silt itself is not the texture harder, lead to its when rotatory sampling device, inside stratified silt mixes together easily under the condition of the rocking of external force, the layering condition that has led to unable better reservation silt, influence the detection in later stage.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a silt soil sampling device.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a sampling equipment of silt soil, includes the shell, fixed mounting has two montants that correspond each other on the outer wall of shell, the top of shell is provided with the handle, the outside of handle is in the same place with the upper end fixed connection of two montants, set up the through-hole that runs through the shell on the shell, the fixed position that corresponds the through-hole on the shell installs the circular block rather than the intercommunication, the upper end fixed mounting of circular block has the gasbag with circular block intercommunication.

The through hole is internally provided with a moving block capable of sliding up and down, and the shell is internally provided with two limiting devices II for limiting the moving block to slide downwards.

Two circular grooves which correspond to each other are formed in the upper wall surface of the shell, movable rods which can move up and down are inserted into the circular grooves, the upper ends of the movable rods are connected together through a cross rod, and a first limiting device which moves down is arranged inside each circular groove.

The lower extreme of circular recess corresponds the spread groove of offering on the position of through-hole with the through-hole intercommunication, every the inside of spread groove all is provided with closing device, the inside of spread groove is provided with the resetting means that can drive closing device and reset

Preferably, the lower extreme fixed mounting of movable rod has the connection rope that can drive closing device and remove, closing device is including promoting piece, semicircle piece, gear and drive block, the lower extreme of connecting the rope is in the same place with the one end fixed connection that the drive block of both sides was kept away from each other, semicircle piece fixed mounting promotes one side that the piece is close to the through-hole, the gear sets up the rear side that promotes the piece, drive block movable mounting is in the inside of spread groove, and the drive block keeps away from the one end of through-hole and is connected rope fixed connection and be in the same place, promote the piece and all seted up the gear groove on the drive block is close to one side wall of gear, it passes through gear groove and gear engagement respectively to promote piece and drive block.

Preferably, inner wall grooves are formed in the inner walls of the upper side and the lower side of the connecting groove, the inner wall grooves are rectangular grooves, clamping blocks are fixedly mounted on the positions, corresponding to the inner wall grooves, of the upper side wall surface and the lower side wall surface of the pushing block, the clamping blocks are matched with the inner wall grooves, and the clamping blocks are movably clamped with the inner wall grooves.

The semicircular block is a semicircular disc-shaped block, the radius of the semicircular block is the same as that of the through hole, and a rubber block is fixedly mounted on one side wall surface, close to the through hole, of the semicircular block.

Preferably, the upper and lower both sides wall surface of gear all fixed mounting have circular shape pivot, circular shape recess has all been seted up to the position that the upper and lower both sides inner wall of spread groove corresponds pivot on the gear, pivot on the gear and the circular recess swing joint on the spread groove inner wall are in the same place.

Preferably, resetting means includes extension spring and riser, riser fixed mounting is at the rear side inner wall of spread groove, and a lateral wall fixed mounting that the riser of both sides was kept away from each other has the extension spring, and the one end that the extension spring of both sides was kept away from each other is in the same place with the one end fixed connection that the drive block of both sides was close to each other.

Preferably, one of the limiting devices comprises a limiting ring and a limiting block, the limiting ring is circular, the limiting ring is fixedly installed on the inner wall of the limiting ring, the movable rod penetrates through the limiting ring to extend downwards all the time, the limiting block is fixedly installed on the outer wall surface of the movable rod and is a circular block, and the limiting block is located above the limiting ring.

Preferably, the cross section of the moving block is hexagonal, the diameter of the outer side wall surface of the upper end of the moving block is gradually increased from top to bottom, and the lower end of the moving block is cylindrical.

Preferably, stop device two includes trapezoidal piece and spring, set up two recesses that correspond each other on the inner wall of through-hole, equal fixed mounting has the spring on the one side inner wall that two recesses kept away from each other, both sides the trapezoidal piece is in the same place with the one end fixed connection that the spring of both sides is close to each other respectively, and the one side wall that the trapezoidal piece of both sides is close to each other is from the top down to the one side slope of keeping away from each other gradually.

Preferably, the bottom of the shell is conical, a dovetail groove is formed in the lower end of the shell, the cross section of the dovetail groove is a trapezoidal opening, the dovetail groove is communicated with the through hole, an annular cutter is fixedly mounted inside the dovetail groove, the lower end of the annular cutter is a knife edge, and the lower end of the annular cutter extends to the outer side of the dovetail groove.

Preferably, a circular stop block is fixedly installed inside the circular block, and the circular stop block is provided with dense air outlets.

(III) advantageous effects

Compared with the prior art, the invention provides a silt soil sampling device, which has the following beneficial effects:

1. the silt soil sampling device, when the earth collected in the through hole is sufficiently collected, the cross rod is lifted upwards, the cross rod drives the two movable rods to move upwards, when the two movable rods move upwards, the connecting rope can be pulled, so as to drive the two driving blocks to move towards the side far away from each other, the tension spring is stretched, the gear groove on the driving blocks is meshed with the gear at the moment, the gear is driven to rotate, then when the gear rotates, the gear is meshed with the pushing blocks, the gear can drive the pushing blocks to move, so that the pushing blocks move towards the side close to the through hole until the rubber blocks at the two sides are attached, the semicircular blocks at the two sides can be combined into a complete round block to plug the through hole, then the shell is pulled out, the arrangement avoids the situation that when an earth sample is collected, because the sediments of each layer of silt are different, when the earth sample is collected, need remain every layer, current earth sampling device, it is generally the same that a pipe, after the collection finishes, need be rotatory with it, make the collection mouth of gathering the pipe rotatory a week from bottom to top, but because silt itself is not the texture harder, lead to its in rotatory collection device, inside stratified silt mixes together easily under the condition of rocking of external force, lead to the layering condition of unable better retaining silt, influence the chemical examination in later stage.

2. This sampling equipment of silt soil, after the collection finishes, when needing to take out silt, loosen the horizontal pole, extension spring pull-back this moment for the drive block removes to the one side that is close to the through-hole, then drives the gear rotation, thereby drives and promotes the piece and remove to the one side of keeping away from the through-hole, opens the through-hole, after loosening the horizontal pole, the stopper can laminate with the spacing ring this moment, has avoided twice movable rod directly to fall into the inside of circular recess, influences the next use.

3. This sampling equipment of silt soil, when the through-hole is reopened, the inside pressure of gasbag can be injected into to the inside of through-hole through the circular block, then can promote the movable block downstream, then the movable block can promote the inside silt of through-hole downwards, make silt discharge to the outside of through-hole that slows down gradually, current sample thief has been avoided in such setting, when taking out inside earth, need collide with it on the desktop, it is more troublesome to take out it with external force, and in the time of silt sample, cause the inside silt layering of through-hole to mix easily, influence later stage chemical examination, and such setting can be so when taking out silt, it is more steady.

4. This sampling equipment of silt soil because the upper end outer wall diameter of movable block is big for from the top down gradually change, therefore the even distribution of air current meeting is around the movable block for can not turn on one's side or incline when the movable block descends, influence the effect of pushing out earth downwards.

5. This sampling equipment of silt soil through having set up stop device two, the trapezoidal piece one side wall face that is close to each other of both sides is from the top down to the lopsidedness of keeping away from each other gradually, consequently when silt enters into the inside of through-hole, can not influence it, but when the movable block lasts the downstream, the movable block can laminate with the top wall face of trapezoidal piece, has avoided the movable block directly to discharge the outside of shell through the through-hole, influences the use.

6. When the sampling equipment for the silt soil is used, the handle is held by hands, then the device is moved to the position near the soil to be sampled, compared with the existing partial sampling equipment, the handle type sampling equipment directly adopts the mode of holding the bottle body to directly sample the soil, so that the setting is more convenient for a user to take and is more convenient,

7. this sampling equipment of silt soil holds the handle after, inserts near the soil that needs the sampling with the lower extreme of shell, then the annular cutter can contact soil, and the setting of annular cutter lower extreme edge of a knife can make this device insert soil inside more easily, and the lower extreme of shell be the toper, and conical setting makes it more convenient when inserting soil.

8. This sampling equipment of silt soil, when the earth of being sampled enters into the through-hole inside, the inside air of through-hole begins to compress, then jack-up the movable block upwards, when the movable block rebound, can compress the air of movable block top, make the beginning grow of gasbag, the internal pressure grow, can know the degree of gathering of the inside earth of through-hole through observing the expanded size of gasbag this moment, avoided because the shell inserts after ground, the inside condition of unable effectual observation shell, thereby can't know the soil condition of the inside collection of through-hole.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic cross-sectional view of the structure of the present invention;

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

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is an enlarged view of a portion of FIG. 2 at C;

FIG. 6 is a schematic top cross-sectional view of the housing;

fig. 7 is a perspective view of the moving block.

In the figure: the device comprises a shell 1, a circular block 2, a vertical rod 3, an air bag 4, a movable rod 5, a cross rod 6, a handle 7, a moving block 8, a dovetail groove 9, a ring-shaped cutter 10, a through hole 11, a circular groove 12, a circular stop block 13, an air outlet 14, a first limiting device 15, a limiting ring 16, a limiting block 17, a second limiting device 18, a groove 19, a trapezoidal block 20, a spring 21, a connecting rope 22, a connecting groove 23, a closing device 24, an inner wall groove 25, a pushing block 26, a semicircular block 27, a rubber block 28, a clamping block 29, a gear 30, a driving block 31, a gear groove 32, a resetting device 33, a tension spring 34 and a vertical plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a silt soil sampling apparatus includes a housing 1, the housing 1 is cylindrical, the bottom of the housing 1 is conical, a through hole 11 penetrating through the housing 1 is formed in the housing 1, a dovetail groove 9 is formed in the lower end of the housing 1, the dovetail groove 9 is a port with a trapezoidal cross section, the dovetail groove 9 is communicated with the through hole 11, an annular cutter 10 is fixedly installed inside the dovetail groove 9, the lower end of the annular cutter 10 is a knife edge, the annular cutter 10 is circular, the lower end of the annular cutter 10 extends to the outer side of the dovetail groove 9, a circular block 2 communicated with the through hole 11 is fixedly installed on the housing 1 corresponding to the position of the through hole 11, an air bag 4 communicated with the circular block 2 is fixedly installed at the upper end of the circular block 2, a circular block 13 is fixedly installed inside the circular block 2, the circular stopper 13 is provided with dense air outlets 14, the through hole 11 is internally provided with a moving block 8 capable of sliding up and down, the cross section of the moving block 8 is hexagonal, the diameter of the outer side wall surface of the upper end of the moving block 8 is gradually increased from top to bottom, the lower end of the moving block 8 is cylindrical, the housing 1 is internally provided with two limiting devices 18 for limiting the downward sliding of the moving block 8, each limiting device 18 comprises a trapezoidal block 20 and a spring 21, the inner wall of the through hole 11 is provided with two corresponding grooves 19, the inner wall of one side, away from each other, of each groove 19 is fixedly provided with the spring 21, the trapezoidal blocks 20 at two sides are fixedly connected with the ends, close to each other, of the springs 21 at two sides respectively, the wall surface of one side, close to each other, of the trapezoidal blocks 20 at two sides is inclined towards one side, away from top to bottom, the upper wall surface of the shell 1 is provided with two circular grooves 12 which correspond to each other, a movable rod 5 which can move up and down is inserted in each circular groove 12, each movable rod 5 is a cylindrical block, the upper ends of the two movable rods 5 are connected together through a cross rod 6, a first limiting device 15 is arranged in each circular groove 12, each first limiting device 15 comprises a limiting ring 16 and a limiting block 17, each limiting ring 16 is circular, each limiting ring 16 is fixedly arranged on the inner wall of each limiting ring 16, each movable rod 5 penetrates through each limiting ring 16 to extend downwards, each limiting block 17 is fixedly arranged on the outer wall surface of each movable rod 5, each limiting block 17 is a circular block, each limiting block 17 is positioned above each limiting ring 16, and a connecting groove 23 communicated with the through hole 11 is formed in the position, corresponding to the through hole 11, of the lower end of each circular groove 12, every the inside of spread groove 23 all is provided with closing device 24, the lower extreme fixed mounting of movable rod 5 has the connection rope 22 that can drive closing device 24 and remove, closing device 24 is including promoting piece 26, semicircle piece 27, gear 30 and drive block 31, the lower extreme of connecting rope 22 is in the same place with the one end fixed connection that the drive block 31 of both sides kept away from each other, inner wall groove 25 has all been seted up on the upper and lower both sides inner wall of spread groove 23, inner wall groove 25 is the groove of rectangle, equal fixed mounting has fixture block 29 on the position that the upper and lower both sides wall face of promoting piece 26 corresponds inner wall groove 25, fixture block 29 and inner wall groove 25 looks adaptation, fixture block 29 is in the same place with inner wall groove 25 activity joint, semicircle piece 27 fixed mounting is in the one side that promotes piece 26 and is close to through-hole 11, and semicircle piece 27 is the piece of half disc, and the radius of semicircle piece 27 is the same with the radius of through, the semi-circular block 27 is fixedly provided with a rubber block 28 on one side wall surface close to the through hole 11, the gear 30 is arranged at the rear side of the pushing block 26, the upper and lower side wall surfaces of the gear 30 are fixedly provided with round rotating shafts, the upper and lower side inner walls of the connecting groove 23 are provided with round grooves corresponding to the positions of the rotating shafts on the gear 30, the rotating shafts on the gear 30 are movably connected with the round grooves on the inner wall of the connecting groove 23, the driving block 31 is movably arranged in the connecting groove 23, one end of the driving block 31 far away from the through hole 11 is fixedly connected with the connecting rope 22, the pushing block 26 and the driving block 31 are provided with gear grooves 32 on one side wall surface close to the gear 30, the pushing block 26 and the driving block 31 are respectively engaged with the gear 30 through the gear grooves 32, the inside of the connecting groove 23 is provided with a resetting device 33 capable of driving the closing, resetting means 33 includes extension spring 34 and riser 35, riser 35 fixed mounting is at the rear side inner wall of spread groove 23, and a lateral wall fixed mounting that the riser 35 of both sides was kept away from each other has extension spring 34, and the one end that the extension spring 34 of both sides was kept away from each other is in the same place with the one end fixed connection that the drive block 31 of both sides was close to each other, fixed mounting has two montants 3 that correspond each other on the outer wall of shell 1, montant 3 is the piece of rectangle, the top of shell 1 is provided with handle 7, the outside of handle 7 is in the same place with the upper end fixed connection of two montants 3, two 18 stop device are located closing device 24's below.

When in use, the utility model is used,

the first step is as follows: when using, hold handle 7 with the hand, then remove near the soil that needs the sample with this device, the bottle body is directly held to the direct adoption of the setting of handle formula than current partial sampling equipment and is directly taken a sample to soil inside, and such setting is more convenient to use person's taking, and is more convenient.

The second step is that: after holding the handle 7, insert near the soil that needs the sampling with the lower extreme of shell 1, then annular cutter 10 can contact soil, and the setting of annular cutter 10 lower extreme edge of a knife can make this device insert soil inside more easily, and the lower extreme of shell 1 is the toper, and the setting of toper makes it when inserting soil, and is more convenient.

The third step: when the earth of being sampled enters into through-hole 11 inside, the inside air of through-hole 11 begins to compress, then jack-up the movable block 8 upwards, when movable block 8 rebound, can compress the air of movable block 8 top, make the start grow of gasbag 4, the internal pressure grow, can know the degree of gathering of the inside earth of through-hole 11 through observing the size that gasbag 4 expands this moment, avoided because after casing 1 inserts ground, the unable effectual inside condition of observing casing 1, thereby can't know the soil condition of the inside collection of through-hole 11.

The fourth step: when the soil collected in the through hole 11 is collected sufficiently, the cross rod 6 is lifted upwards, the cross rod 6 drives the two movable rods 5 to move upwards, when the two movable rods 5 move upwards, the connecting rope 22 is pulled, so that the two driving blocks 31 are driven to move towards the sides far away from each other, the tension spring 34 is stretched, the gear grooves 32 on the driving blocks 31 are meshed with the gear 30 at the moment, the gear 30 is driven to rotate, then when the gear 30 rotates, the gear 30 is meshed with the pushing block 26, the gear 30 drives the pushing block 26 to move, so that the pushing block 26 moves towards the side close to the through hole 11 until the rubber blocks 28 on the two sides are attached, at the moment, the semicircular blocks 27 on the two sides are combined into a complete round block to plug the through hole 11 and then pull out the shell 1, and the arrangement avoids that when a sludge soil sample is collected, precipitates on each layer are different, therefore when gathering, need remain every layer, current earth sampling device, it is the same generally to be a pipe, after gathering finishing, need rotate it for gather the collection mouth of pipe by rotatory a week from bottom to top, but because silt itself is not the texture harder, lead to its in rotatory collection device, inside stratified silt mixes together easily under the condition of the rocking of external force, lead to the layering condition of unable better retaining silt, influence the chemical examination in later stage.

The fifth step: after finishing collecting, when needing to take out silt, loosen horizontal pole 6, extension spring 34 pullback this moment for driving block 31 removes to the one side that is close to through-hole 11, then drives the gear 30 rotation, thereby drives and promotes piece 26 and remove to the one side of keeping away from through-hole 11, opens through-hole 11, after loosening horizontal pole 6, stopper 17 can laminate with spacing ring 16 this moment, has avoided twice movable rod 5 directly to fall into the inside of circular slot 12, influences the next use.

And a sixth step: when through-hole 11 reopens, the inside pressure of gasbag 4 can be injected into through-hole 11 through circular block 2, then can promote movable block 8 downstream, then movable block 8 can promote the inside silt of through-hole 11 downstream, make silt discharge to the outside of through-hole 11 that slows down gradually, current sample thief has been avoided in such setting, when taking out inside earth, need collide with it on the desktop, it is more troublesome to take out it with external force, and in the silt sample, cause the inside silt layering of through-hole 11 to mix easily, influence later stage assay, and such setting can be so that when taking out silt, it is more steady.

The seventh step: because the diameter of the outer wall of the upper end of the moving block 8 is gradually increased from top to bottom, the airflow can be uniformly distributed around the moving block 8, so that the moving block 8 cannot turn over or incline when descending, and the effect of pushing out soil downwards is affected.

Eighth step: through having set up stop device two 18, the lateral wall face that trapezoidal piece 20 of both sides is close to each other is from the top down to the one side slope of keeping away from each other gradually, consequently when silt enters into the inside of through-hole 11, can not influence it, but when the movable block 8 lasts the downstream, movable block 8 can laminate with the top wall face of trapezoidal piece 20, has avoided movable block 8 directly to discharge the outside of shell 1 through-hole 11, influences the use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sampling equipment of silt soil, includes shell (1), fixed mounting has two montants (3) that correspond each other on the outer wall of shell (1), the top of shell (1) is provided with handle (7), the outside of handle (7) is in the same place its characterized in that with the upper end fixed connection of two montants (3): a through hole (11) penetrating through the shell (1) is formed in the shell (1), a circular block (2) communicated with the through hole (11) is fixedly installed at the position, corresponding to the through hole (11), on the shell (1), and an air bag (4) communicated with the circular block (2) is fixedly installed at the upper end of the circular block (2);

a moving block (8) capable of sliding up and down is arranged in the through hole (11), and two limiting devices (18) for limiting the moving block (8) to slide downwards are arranged in the shell (1);

the upper wall surface of the shell (1) is provided with two circular grooves (12) which correspond to each other, movable rods (5) which can move up and down are inserted into the circular grooves (12), the upper ends of the two movable rods (5) are connected together through a cross rod (6), and a first limiting device (15) which can move down the movable rods (5) is arranged in each circular groove (12);

offer on the position that the lower extreme of circular recess (12) corresponds through-hole (11) with connecting groove (23) of through-hole (11) intercommunication, every the inside of connecting groove (23) all is provided with closing device (24), the inside of connecting groove (23) is provided with resetting means (33) that can drive closing device (24) and reset.

2. A silt soil sampling apparatus according to claim 1, wherein: lower extreme fixed mounting of movable rod (5) has connection rope (22) that can drive closing device (24) and remove, closing device (24) are including promoting piece (26), semicircle piece (27), gear (30) and drive block (31), the one end fixed connection who keeps away from each other of drive block (31) of lower extreme and both sides of connecting rope (22) is in the same place, semicircle piece (27) fixed mounting is in one side that promotes piece (26) and is close to through-hole (11), gear (30) set up the rear side that promotes piece (26), drive block (31) movable mounting is in the inside of spread groove (23), and drive block (31) keep away from the one end of through-hole (11) and be in the same place with being connected rope (22) fixed connection, it all has seted up on one side wall face that gear (30) are close to gear (26) and drive block (31) and has promoted gear groove (32), gear groove (32) and gear (30) mesh through gear groove (32) respectively to drive block (26) and drive block (31), gear groove (30) are And (6) mixing.

3. A silt soil sampling apparatus according to claim 2, wherein: inner wall grooves (25) are formed in the inner walls of the upper side and the lower side of the connecting groove (23), the inner wall grooves (25) are rectangular grooves, clamping blocks (29) are fixedly mounted on the positions, corresponding to the inner wall grooves (25), of the upper side wall surface and the lower side wall surface of the pushing block (26), the clamping blocks (29) are matched with the inner wall grooves (25), and the clamping blocks (29) are movably clamped with the inner wall grooves (25);

semicircle piece (27) are the piece of half disc, and the radius of semicircle piece (27) is the same with the radius of through-hole (11), fixed mounting has block rubber (28) on semicircle piece (27) is close to a lateral wall face of through-hole (11).

4. A silt soil sampling apparatus according to claim 2, wherein: equal fixed mounting has a circular shape pivot on the upper and lower both sides wall face of gear (30), the circular shape recess has all been seted up to the position that the upper and lower both sides inner wall of spread groove (23) corresponds pivot on gear (30), the pivot on gear (30) is in the same place with circular recess swing joint on spread groove (23) inner wall.

5. A silt soil sampling apparatus according to claim 1, wherein: resetting means (33) are including extension spring (34) and riser (35), riser (35) fixed mounting has extension spring (34) at the rear side inner wall of spread groove (23), and a lateral wall fixed mounting that riser (35) of both sides kept away from each other has one end fixed connection that one end and the drive block (31) of both sides that the extension spring (34) of both sides kept away from each other are close to each other together.

6. A silt soil sampling apparatus according to claim 1, wherein: stop device (15) include spacing ring (16) and stopper (17), spacing ring (16) are ring shape, and spacing ring (16) fixed mounting is on the inner wall of spacing ring (16), movable rod (5) pass spacing ring (16) downward extension all the time, fixed mounting has stopper (17) on the outer wall of movable rod (5), stopper (17) are the circular shape piece, and stopper (17) are located the top of spacing ring (16).

7. A silt soil sampling apparatus according to claim 1, wherein: the cross section of the moving block (8) is hexagonal, the diameter of the outer side wall surface of the upper end of the moving block (8) is gradually increased from top to bottom, and the lower end of the moving block (8) is cylindrical.

8. A silt soil sampling apparatus according to claim 1, wherein: stop device two (18) include trapezoidal piece (20) and spring (21), set up two recess (19) that correspond each other on the inner wall of through-hole (11), equal fixed mounting has spring (21) on the one side inner wall that two recess (19) kept away from each other, both sides trapezoidal piece (20) are in the same place with the one end fixed connection that spring (21) of both sides are close to each other respectively, and a lateral wall face that trapezoidal piece (20) of both sides are close to each other is from the top down to the one side slope of keeping away from each other gradually.

9. A silt soil sampling apparatus according to claim 1, wherein: the bottom of shell (1) is the toper, dovetail (9) have been seted up to the lower extreme of shell (1), dovetail (9) are trapezoidal mouth for the cross section, dovetail (9) and through-hole (11) intercommunication, the inside fixed mounting of dovetail (9) has annular cutter (10), the lower extreme of annular cutter (10) is the edge of a knife, the lower extreme of annular cutter (10) extends to the outside of dovetail (9) always.

10. A silt soil sampling apparatus according to claim 1, wherein: a round stop block (13) is fixedly arranged inside the round block (2), and dense air outlets (14) are formed in the round stop block (13).