CN207600815U - Dual compression preparation of soil sample device - Google Patents
Dual compression preparation of soil sample device Download PDFInfo
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- CN207600815U CN207600815U CN201721460261.7U CN201721460261U CN207600815U CN 207600815 U CN207600815 U CN 207600815U CN 201721460261 U CN201721460261 U CN 201721460261U CN 207600815 U CN207600815 U CN 207600815U
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Abstract
The utility model discloses a kind of dual compression preparation of soil sample devices, including dual compression mechanism and sample preparation bucket, sample preparation bucket is vertically arranged and up/down perforation, dual compression mechanism includes upper compaction apparatus and lower compaction apparatus, upper compaction apparatus includes the upper adjusting rod for being installed in sample preparation bucket upper end, upper limit part and upper casting die, upper casting die is movably set in sample preparation bucket, upper limit part is in the top of upper casting die, upper limit part and upper casting die are installed on upper adjusting rod away from a manner of between the two by adjustable, lower compaction apparatus includes lower dolly bar, lower limit part and pressing member, pressing member is closely sheathed in sample preparation bucket, lower limit part is in the lower section of pressing member, lower limit part is installed in away from a manner of on lower dolly bar between the two with pressing member by adjustable, the piston rod of lower dolly bar and hydraulic device is axially fixed connection.Using the above structure, the uniformity of soil sample can be increased.
Description
Technical field
The utility model is related to earth work field, more specifically to a kind of dual compression preparation of soil sample device.
Background technology
In earthwork construction, need to be compacted the soil body to reach design compactness, the shearing resistance of the soil body after compacting
Intensity is an important factor for influencing engineering stability, and by laboratory test come to determine the intensity of the soil body after remodeling be indispensable
Few important link.Moreover, according to national earthwork test rule, preparing remoulded sample needs strictly to control its density, to ensure
The requirement of parallel sample uniformity, the comparability of experimental data and validity.
The preparation method of traditional remoulded sample use layer-compacting, due to this method there are each layer soil hit real number with
Therefore the uncertainty of density relationship, has larger difficulty in terms of accurately control soil sample uniformity.Based on this, application number
For the 201410144259.3, Chinese utility model patent of entitled " Multi-functional sample preparation device ", application No. is
The Chinese utility model patent of the 201410363616.5th, entitled " three axis remoulded sample forming methods and its device ", application number
For the 201410476408.6, Chinese utility model patent of entitled " three axis sample preparation devices of controlling density formula geotechnique ", record
Improve the device and method for preparing soil sample uniformity.
But above-mentioned device is substance compression soil sample, and mainly by controlling every layer of soil compaction height from top to bottom
The method of degree ensures the uniformity of soil sample, though this method can improve the uniformity coefficient of soil sample to a certain extent, by
It is influenced in by frictional force between soil sample and mold, therefore the method for this substance compression soil sample cannot effectively solve the equal of soil sample
Even sex chromosome mosaicism.
Utility model content
The purpose of this utility model is to provide a kind of dual compression preparation of soil sample device, being capable of significantly more efficient solution soil sample
The problem of uniformity.
In order to achieve the above objectives, the solution of the utility model is：
A kind of dual compression preparation of soil sample device, the sample preparation bucket including dual compression mechanism and for placing soil sample are described
Sample preparation bucket is vertically arranged and its upper and lower port is mutually communicated, and the dual compression mechanism includes upper compaction apparatus and pushes actual load
It puts, and the sample preparation bucket is between the upper compaction apparatus and the lower compaction apparatus, the upper compaction apparatus includes installing
Upper adjusting rod in the top of the sample preparation bucket upper end port, for the upper limit part that stops the sample preparation bucket and for stopping
The upper casting die of soil sample in sample preparation bucket is stated, the upper casting die is used to be inserted in the sample preparation bucket from the upper end port of the sample preparation bucket
Interior, the upper limit part is in the top of the upper casting die, and the upper limit part and the upper casting die are with adjustable the two
Between the mode of spacing be installed on the upper adjusting rod, the lower compaction apparatus includes lower dolly bar, for stopping the sample preparation
The lower limit part of bucket and the pressing member for stopping soil sample in the sample preparation bucket, the pressing member are closely sheathed on the sample preparation bucket
Interior, the lower limit part is in the lower section of the pressing member, and the lower limit part and the pressing member are with adjustable the two
Between the mode of spacing be installed on the lower dolly bar, also, the piston rod of the lower dolly bar and a hydraulic device is in an axial direction
It is fixedly connected.
The preparation facilities further includes counter-force frame mechanism, and the counter-force frame mechanism is by the hydraulic device, two root posts
And the top beam and pedestal of two columns of connection are formed, the hydraulic device is vertically installed on the pedestal.
The upper adjusting rod is upper threaded rod, and the lower dolly bar is lower threaded rod, and the upper end end of the upper screw rod is consolidated
On the top beam, the upper limit part offers the upper screwed hole screwed on the upper screw rod, the upside of the upper casting die
It is recessed with downwards and interior upper groove is fixedly arranged on for the upper screw rod lower end；The first end of the lower screw rod and the hydraulic pressure
What the piston rod of device welded together, the lower screw rod is in the piston rod on same axis, and the lower limit part is opened
Equipped with the lower threaded hole screwed on the lower screw rod, the lower face of the pressing member is concaved with for the lower screw rod upper end end
Portion is fixedly arranged on interior lower groove.
The upper limit part and the lower limit part are fixed respectively by fixing nut, one of them described fixed spiral shell
Mother screws on the upper screw rod and the top in the upper limit part, and another fixing nut is screwed on the lower screw rod simultaneously
Correspond to the lower section of the lower limit part in the lower screw rod.
The upper compaction apparatus further includes the upper porous plate being adapted in the sample preparation bucket, on the upper porous plate uniformly
Offer several gas vents, the upper porous plate is located between the upper casting die and soil sample top surface, the upper porous plate with
It is folded with the filter paper being adapted respectively between the upper porous plate and soil sample top surface between the upper casting die；The pushing actual load
The lower porous plate for further including and being adapted in the sample preparation bucket is put, several gas vents are uniformly provided on the lower porous plate,
The lower porous plate is located between the pressing member and soil sample bottom surface, between the lower porous plate and the pressing member and described
It is folded with the filter paper being adapted respectively between lower porous plate and the soil sample bottom surface.
The dual compression mechanism further includes two sets of measuring devices, and two sets of measuring devices include dial gauge and magnetic power meter
Seat, wherein a set of dial gauge is installed in by the magnetic stand on the top beam, and the measurement head of the dial gauge
It is in contact with the upper limit part；The another set of dial gauge is installed in by the magnetic stand on the column, and another
The measurement head of a set of dial gauge is in contact with the lower limit part.
If the sample preparation bucket is made of dry plate splice plate and cranse, each splice plate, which is stitched together, to be cylindrical in shape, and institute
Cranse lock ring is stated in outside tubular each splice plate.
The lateral wall of the lower end of the lateral wall of the upper end end of the sample preparation bucket and the sample preparation bucket is corresponding respectively to be covered
Equipped with rigidized cover annular in shape.
With the above structure, the utility model has the advantages that：By being corresponded to respectively in the both ends of sample preparation bucket
Casting die and pressing member are inserted in, and pressing member follows hydraulic device to be moved along the axial direction in sample preparation bucket so that soil sample
Top is acted on by the effect of upper casting die and the bottom of soil sample by pressing member, enables soil sample vertical compression in sample preparation bucket, this
Sample, bottom surface and top surface to soil sample carry out dual compression, the influence to rub between sample preparation bucket and soil sample are reduced, so as to increase
The uniformity of soil sample.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the partial sectional view of the utility model dual compression preparation of soil sample device.
In figure：
1- sample preparation bucket 21- upper limit parts
Screw rod on the upper casting die 23- of 22-
The upper porous plate 241- gas vents of 24-
25- filter paper 26- fixing nuts
31- lower limit part 32- pressing members
Porous plate under screw rod 34- under 33-
35- fixing nut 41- hydraulic devices
42- column 43- top beams
Dial gauge on 44- pedestals 51-
Dial gauge under the upper magnetic stand 53- of 52-
Magnetic stand 61- arc plates under 54-
62- cranse 63- rigidized covers
Specific embodiment
In order to which the technical solution of the utility model is explained further, below by specific embodiment come to the utility model into
Row elaborates.
A kind of dual compression preparation of soil sample device of the utility model, as shown in Figs. 1-2, including dual compression mechanism, hydraulic pressure
Device and sample preparation bucket 1.
This sample preparation bucket 1 is used to place soil sample；Dual compression mechanism is used to carry out from top to bottom the soil sample in sample preparation bucket 1
Promote compacting and propulsion compacting from the bottom to top.
For convenience of description, the reference direction of the utility model is in direction during using normal use.
This sample preparation bucket 1 is vertically arranged, and the upper end port of sample preparation bucket 1 and lower end port are mutually communicated；Dual compression mechanism
Including upper compaction apparatus and lower compaction apparatus, when sample preparation bucket 1 is in upper compaction apparatus and pushing between device, and upper compacting fills
Put, sample preparation bucket 1 and lower compaction apparatus are on same axis, upper compaction apparatus include upper adjusting rod, upper limit part 21 and upper pressure
Part 22, adjusting rod is installed in the top of the upper end port of sample preparation bucket 1 on this, and upper limit part 21 is in the top of upper casting die 22,
Casting die 22 can be inserted at the upper end port of sample preparation bucket 1 in sample preparation bucket 1 on this, also, upper limit part 21 and upper casting die 22
It is installed on upper adjusting rod in a manner of adjustable spacing between the two；Upper limit part 21 is used for the upper end end for stopping sample preparation bucket 1
Portion, upper casting die 22 are used to stop the soil sample in sample preparation bucket 1.Lower compaction apparatus includes lower dolly bar, lower limit part 31 and pressing member
32, lower limit part 31 is in the lower section of pressing member 32, and lower limit part 31 is with pressing member 32 with the side of adjustable spacing between the two
Formula is installed on lower dolly bar, and the lower end port of this pressing member 32 from sample preparation bucket 1 is inserted in sample preparation bucket 1, and with sample preparation bucket 1
Inner tight coordinates, i.e., the periphery of pressing member 32 is affixed cooperation, lower dolly bar and a hydraulic device along the madial wall with sample preparation bucket 1
Piston rod be axially fixed connection；Lower limit part 31 is used for the lower end for stopping sample preparation bucket 1, this pressing member 32 is used to stop
Soil sample in sample preparation bucket 1, and match extruding soil sample with upper casting die 22.
In the utility model, this dual compression preparation of soil sample device further includes counter-force frame mechanism, this counter-force frame mechanism by
Aforementioned hydraulic device 41, two root posts 42, top beam 43 and pedestal 44 is formed, top beam 43 and pedestal 44 be installed in two columns 42 it
Between, hydraulic device 41 is vertically installed on pedestal 44, and, piston rod and the sample preparation bucket 1 of hydraulic device 41 are on same axis.
In the present embodiment, this hydraulic device 41 is using conventional hydraulic jack.
Specifically, upper adjusting rod and lower dolly bar are threaded rod, and more than adjusting rod is upper threaded rod 23, and lower dolly bar is
Lower threaded rod 33, upper threaded rod 23 and lower threaded rod 33 are in vertically arranged, and upper end end of screw rod 23 is connected by bolt on this
It connects at top beam 43, and the upper end end of upper screw rod 23 is in the centre position of top beam 43；The shape of upper casting die 22 is under
Shape of the shape of casting die 32 with sample preparation bucket 1 is adapted, and in the present embodiment, this sample preparation bucket 1 is in the tubular of up/down perforation.
The upper screwed hole for screwing in upper screw rod 23 is offered on upper limit part 21, and the upper end of upper casting die 22 is recessed downwards
There is the lower end for upper screw rod 23 to be fixedly arranged on interior upper groove, wherein, upper screw rod 23 and upper casting die 22 by helicitic texture into
Row fastening, i.e., the madial wall of this upper groove is fastened with upper screw rod 23 by the screw thread of mutual cooperation, can also pass through close-fitting
Close structure fastened, i.e. the interior path length of upper groove is slightly less than or the outer path length equal to upper screw rod 23, so as between the two into
The fixed cooperation of row, also, upper casting die 22 is corresponding with the upper end port of sample preparation bucket 1；Upper limit part 21 can be along the spiral shell of upper screw rod 23
Line is rotated and is moved up and down, and spacing between upper limit part 21 and upper casting die 22 is adjusted, also, also screwed on upper screw rod 23 with this
There is fixing nut 26, this fixing nut 26 is in the top of upper limit part 21, upper limit part 21 to be fixed, by the upper limit
Position 21 screw lock of part is at a certain position of upper screw rod 23.Wherein, the outer diameter length of upper limit part 21 is more than the outer path length of sample preparation bucket 1,
And the outer path length of upper casting die 22 is slightly less than or the interior path length equal to sample preparation bucket 1.
The lower end of lower screw rod 33 and the piston rod of aforementioned hydraulic device 41 weld together, and this lower screw rod 33 with
Piston rod is on same axis；Offer the lower threaded hole for screwing in lower screw rod 33 on lower limit part 31, and pressing member 32
Concave up be equipped in lower face supplies the upper end end of lower screw rod 33 to be fixedly arranged on interior lower groove, and lower screw rod 33 and pressing member 32 pass through spiral shell
Line structure is fastened, i.e., the madial wall of lower groove is fastened with lower screw rod 33 by the screw thread of mutual cooperation, can also be led to
Tension fit structure is fastened, i.e. the interior path length of lower groove is slightly less than or the outer path length of lower screw rod 33, so as between the two
Fixed cooperation is carried out, also, pressing member 32 is corresponding with the lower end port of sample preparation bucket 1；Spiral shell of the lower limit part 31 along lower screw rod 33
Line is rotated and is moved up and down, and spacing between lower limit part 31 and pressing member 32 is adjusted, also, also screwed on lower screw rod 33 with this
There is fixing nut 35, this fixing nut 35 is in the lower section of lower limit part 31, lower limit part 31 to be fixed, by lower limit
Position 31 screw lock of part is at a certain position of lower screw rod 33.Wherein, the outer diameter length of lower limit part 31 is more than the outer path length of sample preparation bucket.Compared with
Goodly, upper screw rod 23, sample preparation bucket 1 and lower screw rod 33 are on same axis.
Further, dual compression mechanism further includes two sets of measuring devices, and two sets of measuring devices include dial gauge and magnetic
Power gauge stand, for measuring position of the upper limit part 21 on upper screw rod 23, second set of measuring device is used for first set measuring device
Position of the measurement lower limit position part 31 on lower screw rod 33.Dial gauge in first set measuring device is upper dial gauge 51, magnetic power meter
Seat is upper magnetic stand 52, and dial gauge 51 is digital dialgage with big measuring range on this, and upper dial gauge 51 is pacified by upper magnetic stand 52
On top beam 43, and the measurement head of upper dial gauge 51 is in contact with upper limit part；Dial gauge in second set of measuring device is
Lower dial gauge 53, magnetic stand are lower magnetic stand 54, and lower dial gauge 53 is installed in wherein one by lower magnetic stand 54
On column 42, and the measurement head of lower dial gauge 53 is in contact with lower limit part 31.Wherein, when upper limit part 21 and upper casting die 22 are tight
During patch, upper percentage meter reading is set as zero；Instantly when locating part 31 is close to pressing member 32, the degree setting of lower dial gauge is
Zero.Preferably, the measurement head and upper limit part 21 of upper dial gauge 51 are perpendicular, measurement head and the lower limit part 31 of lower dial gauge 53
It is perpendicular, to ensure that the data that upper dial gauge 51 and lower dial gauge 53 measure are accurate.
Further, upper compaction apparatus further includes porous plate 24, and porous plate 24 is located in soil sample top surface and upper pressure on this
Between part 22, lower compaction apparatus further includes lower porous plate 34, and lower porous plate 34 is located between soil sample bottom surface and pressing member 32, on
Porous plate 24 is used to fully discharge the air in soil sample in compacting process with lower porous plate 34；Porous plate 24 and lower more on this
The path length of orifice plate 34 is slightly less than the interior path length with sample preparation bucket 1, lower porous plate 34 with it is evenly-spaced respectively on upper porous plate 24
Equipped with several vertical gas vents 341,241, and each gas vent 341 on lower porous plate 34 is centrosymmetric distribution, upper more
Each gas vent 241 on orifice plate 24 is centrosymmetric distribution；Also, the lower face of upper casting die 22 and the upper surface of pressing member 32 point
Several grooves are not offered, air are hindered smoothly to be arranged from corresponding porous plate with to avoid upper casting die 22 and pressing member 32
Go out, preferably, each groove of upper casting die 22 and each groove of pressing member 32 are centrosymmetric.
Further, between upper porous plate 24 and upper casting die 22 filter is folded between lower porous plate 34 and pressing member 32
Paper 25, and this filter paper 25 is adapted with upper porous plate 24 and lower porous plate 34, to ensure soil sample air energy in compacting process
Enough smoothly discharges.Preferably, filter paper can also be folded between porous plate 24 and the top surface of soil sample and lower porous plate 34 with soil
Between sample bottom surface, further assure that soil sample will not block the exhaust of porous plate 24 and lower porous plate 34 in compacting process
Hole.
Further, if sample preparation bucket 1 is made of dry plate splice plate and cranse, each splice plate, which is stitched together, to be cylindrical in shape, and
62 lock ring of cranse is in outside tubular each splice plate.
Specifically, each splice plate is arc plate 61, and each arc plate 61 is mutually spliced into rounded cylindrical, and 62 lock ring of cranse
In outside rounded cylindrical, and cranse 62 is located at the stage casing of rounded cylindrical, to each arc plate 61 of lock ring, it is made not fall apart.Preferably
Correspondence is arranged with rigidized cover 63 annular in shape respectively for ground, the lateral wall of the upper end end of sample preparation bucket 1 and the lateral wall of lower end,
To reinforce each arc plate 61, so as not to falling apart.
In the present embodiment, upper casting die 22 is top board, and pressing member 32 is lower platen.
Compared with prior art, by the way that correspondence is inserted in upper casting die 22 and pressing member 32 respectively in the both ends of sample preparation bucket 1, and
Pressing member 32 follows hydraulic device to be moved along the axial direction in sample preparation bucket 1 so that the top of soil sample by upper casting die 22 work
With the bottom with soil sample by the effect of pressing member 32, soil sample vertical compression in sample preparation bucket 1 is enabled, in this way, the bottom surface to soil sample
Dual compression is carried out with top surface, the influence to rub between sample preparation bucket 1 and soil sample is reduced, so as to increase the uniform of soil sample
Property.
In addition, according to the method for making sample of the dual compression preparation of soil sample device of previous embodiment, there are following steps：
(1), prepare soil sample, by the volume V and density p of design sample, calculate the wet soil quality m prepared needed for soil sample,
Prepare soil sample, and soil sample is divided into three parts by quality by the wet soil quality needed for calculating；
(2), the height of adjustment lower limit part 31, makes the upper surface of lower limit part 31 and the lower face of pressing member 32 mutually tight
Patch, and sample preparation bucket 1 is closely set in outside pressing member 32 in an axial direction, bottom end is located on lower limit part 31, then, described
It is folded successively corresponding to the upper surface of the pressing member 32 in sample preparation bucket 1 and sets the first filter paper, 34 and second filter paper of lower porous plate；
(3), after completing step (2), three parts of soil samples in step (1) are poured into three times in sample preparation bucket 1, per portion soil sample
After pouring into sample preparation bucket 1, hydraulic device 41 loads, and preliminary consolidation is carried out to each layer of soil sample；
(4), in step (3), before each layer of soil sample carries out preliminary consolidation, adjustment upper limit part 21 and the upper casting die
The distance between 22, enable hydraulic device 41 load after upper casting die 22 can be in contact with the top surface of each layer of soil sample and tentatively pressed
Real, then shaving has been subjected to the soil sample of preliminary consolidation, three layers of soil sample composition through preliminary consolidation before next layer of soil sample add
Compacting soil sample in sample preparation bucket 1；
(5), in step (4), a soil sample is often poured into, the top surface corresponding to every layer of soil sample in sample preparation bucket 1 is folded successively
If third filter paper, 24 and the 4th filter paper of upper porous plate, after each layer of soil sample preliminary consolidation, hydraulic device 41 is enabled to be in and stops shape
Then state takes filter paper, upper porous plate 24 and another filter paper away, they are then laid on to the top for the soil sample being re-poured into again
Face, and so on, until third layer soil sample preliminary consolidation is completed, you can compacting soil sample is obtained, at this point, third filter paper, upper more
24 and the 4th filter paper of orifice plate folds the top surface for being located at compacting soil sample successively；
(6), after the completion for the treatment of step (5), the height of upper limit part 21 is adjusted by aforementioned upper dial gauge, makes upper limit part
The distance of 21 lower end to the lower end of upper casting die 22 is H1=(H-h)/2-t, wherein, H is sample preparation bucket height, and t is upper porous plate
Thickness, h be sample preparation height, h=4m/ ρ π D2, D is sample preparation bucket internal diameter；
(7), after adjusting, hydraulic device 41 is enabled to continue to load, sample preparation bucket 1, pressing member 32 and lower limit part 31 follow
Lower dolly bar moves upwardly together, and upper casting die 22 sample preparation bucket 1 move up during enter sample preparation bucket 1 in, and with pressing member 32
Interaction is treated compacted samples and is squeezed, until the upper end of sample preparation bucket 1 is in contact with the lower end of upper limit part 21, liquid
Pressure device 41 is stopped, you can completes first step compacting, forms half compacted samples；
(8), after the completion of first step compacting, divide table by aforementioned lower hundred table to adjust the height of lower limit part 31, under making
The distance between the upper surface of locating part 31 and the upper surface of pressing member 32 are：H2=(H-h)/2-t2, wherein, H is sample preparation bucket
Highly, t2For the thickness of lower porous plate, h is sample preparation height, h=4m/ ρ π D2, D is the internal diameter of sample preparation bucket；
(9), after the completion for the treatment of step (7), hydraulic device 41 is enabled to continue to load, pressing member 32 and lower limit part 31 follow downward
Pole continues to move up, and since the upper end of sample preparation bucket 1 is in contact with the lower end of the upper limit part, therefore sample preparation bucket 1 can not be after
It is continuous to move up, so pressing member 32 can not together continue up due to blocking of the sample preparation bucket 1 by upper limit part 21 with sample preparation bucket 1
It moves but is moved up inside sample preparation bucket 1, and interact half-and-half with upper casting die 22 during movement in sample preparation bucket 1
Compacted samples are squeezed, until the upper surface of lower limit part 31 is in contact with the bottom end of sample preparation bucket 1, then hydraulic device 41 stops
It only works, soil sample compacting is completed；
(10), behind step (1)-(9) to be done, the hydraulic device is unloaded, remove and opens the sample preparation bucket, takes out pressure
The soil sample completed in fact, soil sample complete.
Wherein, upper adjusting rod is upper threaded rod 23, and lower dolly bar is lower threaded rod 33.
After method for making sample using above-mentioned dual compression preparation of soil sample device, soil sample can be prepared by required soil sample height,
And effect vertical compression of the soil sample by upper casting die and pressing member simultaneously, increase the uniformity of soil sample, also, the letter of sample preparation step
It is single, accurate.
The foregoing is merely the preferred embodiment of the present embodiment, all equalizations done with the utility model claims range
Variation and modification should all belong to the right of the utility model.
Claims (8)
1. a kind of dual compression preparation of soil sample device, it is characterised in that：System including dual compression mechanism and for placing soil sample
Sample bucket, the sample preparation bucket is vertically arranged and its upper and lower port is mutually communicated, the dual compression mechanism include upper compaction apparatus and
Lower compaction apparatus, and the sample preparation bucket is between the upper compaction apparatus and the lower compaction apparatus, the upper compaction apparatus
Including be installed in the sample preparation bucket upper end port the upper adjusting rod of top, for stopping the upper limit part of the sample preparation bucket and use
In the upper casting die for stopping soil sample in the sample preparation bucket, the upper casting die is used to be inserted in described from the upper end port of the sample preparation bucket
In sample preparation bucket, the upper limit part is in the top of the upper casting die, and the upper limit part and the upper casting die are with adjustable
The mode of spacing is installed on the upper adjusting rod between the two, and the lower compaction apparatus includes lower dolly bar, for stopping
The lower limit part of sample preparation bucket and the pressing member for stopping soil sample in the sample preparation bucket are stated, the pressing member is closely sheathed on described
In sample preparation bucket, the lower limit part is in the lower section of the pressing member, and the lower limit part and the pressing member are with adjustable
The mode of spacing is installed on the lower dolly bar between the two, also, the piston rod of the lower dolly bar and a hydraulic device
It is axially fixed connection.
2. dual compression preparation of soil sample device according to claim 1, it is characterised in that：The preparation facilities further includes instead
Power frame mechanism, the counter-force frame mechanism are made of the hydraulic device, the top beam and pedestal of two columns of two root posts and connection,
The hydraulic device is vertically installed on the pedestal.
3. dual compression preparation of soil sample device according to claim 2, it is characterised in that：The upper adjusting rod is upper screw thread
Bar, the lower dolly bar are lower threaded rod, and the upper screw rod upper end end is fixedly arranged on the top beam, and the upper limit part opens up
There is the upper screwed hole screwed on the upper screw rod, the upside of the upper casting die is recessed with downwards for the upper screw rod lower end
It is fixedly arranged on interior upper groove；What the first end of the lower screw rod welded together with the piston rod of the hydraulic device, under described
Screw rod is in the piston rod on same axis, and the lower limit part offers the lower threaded hole screwed on the lower screw rod,
The lower face of the pressing member, which is concaved with, is fixedly arranged on interior lower groove for the lower screw rod upper end end.
4. dual compression preparation of soil sample device according to claim 3, it is characterised in that：The upper limit part and it is described under
Locating part is fixed respectively by fixing nut, one of them described fixing nut is screwed on the upper screw rod and in described
The top of upper limit part, another fixing nut screw on the lower screw rod and correspond to the lower limit in the lower screw rod
The lower section of position part.
5. dual compression preparation of soil sample device according to claim 1, it is characterised in that：The upper compaction apparatus further includes
The upper porous plate being adapted in the sample preparation bucket is uniformly provided with several gas vents on the upper porous plate, described more
Orifice plate is located between the upper casting die and soil sample top surface, between the upper porous plate and the upper casting die and the upper porous plate
It is folded with the filter paper being adapted respectively between soil sample top surface；The lower compaction apparatus is further included to be adapted in the sample preparation bucket
Lower porous plate, be uniformly provided with several gas vents on the lower porous plate, the lower porous plate is located in the pressing member
Between soil sample bottom surface, divide between the lower porous plate and the soil sample bottom surface between the lower porous plate and the pressing member
It is not folded with the filter paper being adapted.
6. dual compression preparation of soil sample device according to claim 2, it is characterised in that：The dual compression mechanism is also wrapped
Two sets of measuring devices are included, two sets of measuring devices include dial gauge and magnetic stand, wherein a set of dial gauge passes through institute
It states magnetic stand to be installed on the top beam, and the measurement head of the dial gauge is in contact with the upper limit part；Another set of
The dial gauge is installed in by the magnetic stand on the column, and the measurement head of the another set of dial gauge with it is described
Lower limit part is in contact.
7. dual compression preparation of soil sample device according to claim 1, it is characterised in that：If the sample preparation bucket is spelled by dry plate
Fishplate bar and cranse are formed, and each splice plate, which is stitched together, to be cylindrical in shape, and the cranse lock ring is in tubular each spelling
Outside fishplate bar.
8. dual compression preparation of soil sample device according to claim 7, it is characterised in that：The upper end end of the sample preparation bucket
Lateral wall and the sample preparation bucket lower end lateral wall respectively correspondence be arranged with rigidized cover annular in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721460261.7U CN207600815U (en) | 2017-11-06 | 2017-11-06 | Dual compression preparation of soil sample device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721460261.7U CN207600815U (en) | 2017-11-06 | 2017-11-06 | Dual compression preparation of soil sample device |
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| CN207600815U true CN207600815U (en) | 2018-07-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817146A (en) * | 2017-11-06 | 2018-03-20 | 华侨大学 | Dual compression preparation of soil sample device and method for making sample |
| CN108896372A (en) * | 2018-07-24 | 2018-11-27 | 武汉科技大学 | A kind of CT scan sample preparation device |
| CN109085039A (en) * | 2018-09-20 | 2018-12-25 | 广西大学 | Prepare the device and preparation method of Ground Penetrating Radar contaminated soil detection simulation test soil sample |
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2017
- 2017-11-06 CN CN201721460261.7U patent/CN207600815U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817146A (en) * | 2017-11-06 | 2018-03-20 | 华侨大学 | Dual compression preparation of soil sample device and method for making sample |
| CN107817146B (en) * | 2017-11-06 | 2023-08-29 | 华侨大学 | Dual-compression soil sample preparation device and sample preparation method |
| CN108896372A (en) * | 2018-07-24 | 2018-11-27 | 武汉科技大学 | A kind of CT scan sample preparation device |
| CN109085039A (en) * | 2018-09-20 | 2018-12-25 | 广西大学 | Prepare the device and preparation method of Ground Penetrating Radar contaminated soil detection simulation test soil sample |
| CN109085039B (en) * | 2018-09-20 | 2024-04-09 | 广西大学 | Device and method for preparing soil sample for ground penetrating radar polluted soil detection simulation test |
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