CN104111188B - Sand distribution device for preparing sand samples of different degrees of density in indoor model experiment - Google Patents
Sand distribution device for preparing sand samples of different degrees of density in indoor model experiment Download PDFInfo
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- CN104111188B CN104111188B CN201410372349.8A CN201410372349A CN104111188B CN 104111188 B CN104111188 B CN 104111188B CN 201410372349 A CN201410372349 A CN 201410372349A CN 104111188 B CN104111188 B CN 104111188B
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- sand
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- trolley platform
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Abstract
The invention discloses a sand distribution device for preparing sand samples of different degrees of density in an indoor model experiment. The sand distribution device comprises a shakeout tank and a trolley platform, wherein a sand leaking plate is arranged at the bottom of the shakeout tank, round holes are uniformly formed in the sand leaking plate, two sand baffles are arranged under the sand leaking plate, the trolley platform can do a reciprocating motion along guide rails arranged on the shakeout tank, an opening-closing mechanism for opening and closing the sand baffles of the shakeout tank is arranged on the trolley platform, a control rod of the opening-closing mechanism penetrates through a spring base plate, a compression spring and a fastener from bottom to top and is mounted on a trolley platform plate, an anti-rotation key of the control rod is arranged on the trolley platform plate, and a baffling block for opening and closing the sand baffles at the bottom of the shakeout tank is arranged at the lower end of the control rod; anti-rebound baffling pins for preventing the sand baffles from falling are respectively arranged on the outer sides of bracket legs of the shakeout tank. The sand distribution device for preparing the sand samples of different degrees of density in the indoor model experiment has the beneficial effects that the disadvantages of a manual tamping method utilized in a preparation process of a traditional sand sample are overcome, the manpower and the time are saved, and the operation is convenient and rapid; the sand samples of the different degrees of density can be conveniently and rapidly prepared in the indoor model experiment of geotechnical engineering, so that the accurate control of physical characteristics of an experimental sand soil bed is realized, and an important foundation is laid for the accurate and reliable model test data.
Description
Technical field
The present invention relates to preparing the cloth sand device of sand sample in a kind of indoor model test for Geotechnical Engineering, particularly a kind of
For preparing the cloth sand device of different packing sand samples in indoor model test.
Background technology
When carrying out civil engineering model test or centrifugal machine model trial, generally require for sand to be arranged in model clay case
Interior, there are different requirements to the sand sample physical characteristic arranged in model clay case in different tests.Successfully carry out model test
Premise be exactly model sand soil sample preparation work.The packing of wherein sand is to characterize an important finger of its physical characteristic
Mark, directly influences the engineering properties of sand.For ease of controlling the packing of sand sample, usually select in model test to build sand again
Native bed.Additionally, for guaranteeing the repeatability tested, also require that must enable in test the preparation of different packing sand samples can
Replicability.For cohesive soil, can by by its initial slurry condition consolidation, then plant from this large-scale soil sample take some
To obtain test soil sample.But producing of sand soil sample is not so simple, needs each soil sample is manufactured separately, thus makes
The uniformity that soil sample must be controlled becomes with difficulty.Prior art typically uses compaction in layers method and prepares sand sample, prepares sand sample
When first several times sand is placed in model clay case, then using counterweight hand compaction.The method has sand sample packing and is difficult
Control, repeatable little, sand soil sample layering effect is serious and the shortcomings of labor intensive and time, thus leading to result of the test
Reliability is too low.
So how conveniently and efficiently to prepare the sand sample of different packings in model test, and sand soil sample can be controlled
Physical characteristic, thus realizing the reproducibility of the native bed of different physical characteristic tests, is asked with studying the related ground under different operating modes
Topic, is the extremely important content of one of model investigation.
Content of the invention
It is an object of the invention to provide a kind of cloth sand dress for preparing different packing sand samples in indoor model test
Put, can conveniently and efficiently prepare the sand sample of different packings in Geotechnical Engineering indoor model test, thus realizing testing sand
The precise control of native bed physical characteristic, is that model test obtains accurately and reliably data result and established important foundation.
In order to overcome the above-mentioned deficiencies of the prior art, the technical solution used in the present invention is:
This is used for preparing the cloth sand device of different packing sand samples in indoor model test, including knockout case, trolley platform,
Open-and-close mechanism and bracing frame.The guide rail that described trolley platform can be arranged along along described knockout case moves back and forth, described trolley platform
On be provided with the open-and-close mechanism of described knockout bottom portion's sand block plate, described knockout lower box part is arranged on support frame as described above.
Described knockout case side wall is the rectangle knockout casing of four pieces of side plate compositions, and knockout bottom portion is to be uniform-distribution with one to be
Arrange the leakage sand plate for leaking sand circular hole or conical bore, sand spills by leaking sand plate circular hole or conical bore, on base plate after knockout not
Sand can be remained；Two blocks of sand block plates are set in leakage sand plate bottom, after sand block plate is closely sealed, its center is provided with and open-and-close mechanism
The breach of control bar block cooperation, sand block plate and knockout case side plate chain connection, setting on opposite sides plate above knockout case is led
Rail support base, guide supporting seat is provided with guide rail, and knockout case side plate is provided with the suspension ring of lifting.
Described trolley platform includes trolley platform plate, and below trolley platform plate, setting slide block can be coordinated with described guide rail and move
Dynamic.
Described open-and-close mechanism includes control bar, and described control bar is from bottom to top by the spring bottom plate of open-and-close mechanism, compression
Spring, holddown spring securing member and securing member connecting rod are arranged on described trolley platform plate, and described trolley platform plate sets
Open-and-close mechanism is controlled to rotate and the antirotation keys bonded with control bar, described control bar bottom is by the leakage in described knockout bottom portion
Sand plate and sand block plate, its lower end is provided with the block of two blocks of sand block plates of folding.Open-and-close mechanism can move along guide rail with trolley platform, side
Just quick adjustment position, and multiple open-and-close mechanisms can be installed as needed, by open-and-close mechanism antirotation keys and open-and-close mechanism compression
The locking with the use of achievable sand block plate of spring with quickly open.
Support frame as described above includes the rack leg of four described four side plates of knockout case of support, sets respectively outside described rack leg
It is equipped with the anti-rebound backing pin of resilience when preventing sand block plate from falling.The spacing anti-rebound backing pin of setting sand block plate, can be spacing using it
Function prevents sand block plate from opening rear resilience and produces impact to knockout process.
The operating process of the present invention, before sand loading, is locked by the control bar block that rotating folding mechanism controls bar makes its bottom
Tight sand block plate, during cloth sand, extracts open-and-close mechanism control bar antirotation keys out, rotating folding mechanism controls bar makes its bottom control bar block
Rotate to sand block plate indentation, there, sand block plate is opened at once, so that sand falls from the in the hole of leakage sand plate, at the aperture of leakage sand plate
Setting circular cone guide hole or generally conical bore, therefore after knockout, base plate do not remain sand；After sand block plate is opened, by cloth
Put the anti-rebound backing pin on rack leg be automatically performed sand block plate locking spacing, thus preventing it from fixing swinging to knockout
Impact；By the suspension ring that the boom hoisting in laboratory connects on knockout case side plate, this cloth sand device can be hung to needs during cloth sand
Height.
During cloth sand, knockout height can be adjusted by device is risen to different height, also can be by exchanging not
With the leakage sand plate in aperture, such that it is able to control the packing of prepared sand sample.
Compared with prior art, the invention has the beneficial effects as follows:
This device overcomes the shortcoming of hand compaction method in traditional sand sample preparation process, saves manpower and time, convenient
Fast.The sand sample of different packings can conveniently and efficiently be prepared in Geotechnical Engineering indoor model test, thus realizing testing sand
The precise control of soil soil bed physical characteristic, is that model test obtains accurately and reliably data result and established important foundation.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is closing device structural representation；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is control bar antirotation keys principle schematic；
Fig. 6 is anti-rebound backing pin structural representation.
Specific embodiment
Below in conjunction with the accompanying drawings embodiments of the invention are further illustrated:
Embodiment 1:
As shown in Fig. 1,2,3 and 4, the present invention includes the control bar 1 of open-and-close mechanism, holddown spring securing member 2, holddown spring
3rd, the trolley platform plate 6 of securing member connecting rod 4, spring bottom plate 5, control bar antirotation keys 7, control bar block 15, and trolley platform,
Slide block 8, with the guide rail 9 of knockout case, guide supporting seat 10, knockout case side plate 11, suspension ring 12, leakage sand plate 13, sand block plate 14, low-resistance
Spring hinge 16, and the angle bar frame leg 17 of bracing frame, anti-rebound backing pin 18.
Knockout case is that four blocks of rectangle knockout case side plates 11 and leakage sand plate 13 etc. are formed by connecting, device overall dimensions: 1000mm
× 1000mm × 650mm, box house size: 970mm × 970mm × 150mm, leakage sand plate 13 is uniform-distribution with a series of use
In circular hole or the conical bore of leakage sand, leakage sand hole is 30mm with the center of circle distance in hole, and a diameter of 20mm of circular hole also can be in circular orifices
Place's setting circular cone guide hole or generally conical bore, should ensure that during knockout and do not stay residual sand on base plate；Knockout case is in leakage sand plate 13
Bottom arranges the sand block plate 14 of two pieces of surface mount rubber sealings.After two blocks of sand block plates 14 are closely sealed, its center is provided with and opens
Close the breach of mechanism's block 15 cooperation；Two blocks of sand block plates 14 use low-resistance spring hinge 16 chain connection with knockout case side plate, can
Improve the opening speed of sand block plate 14.Two guide supporting seats 10, guide supporting seat are arranged on opposite sides plate above knockout case
Set guide rail 9 on 10, knockout case side plate arranges the suspension ring 12 lifting.
Open-and-close mechanism includes control bar 1, and control bar 1 passes through open-and-close mechanism holddown spring base plate 5, holddown spring from bottom to top
3rd, holddown spring securing member 2 and two securing member connecting rods 4 are arranged on trolley platform plate 6, and trolley platform plate 6 sets control
The control bar antirotation keys 7 that open-and-close mechanism rotates, control bar 1 bottom is by the leakage sand plate 13 in described knockout bottom portion and sand block plate
14, its lower end is provided with the block 15 of two blocks of sand block plates 14 of folding.Open-and-close mechanism can move along guide rail, fast and easy adjustment position,
By the control bar 1 of open-and-close mechanism, spring fastener 2, holddown spring 3, spring bottom plate 5 and open-and-close mechanism control bar antirotation keys 7
With control bar link stopper 15 with the use of achievable sand block plate 14 locking with quickly open.
Trolley platform is seated in above knockout case, and landing slab 6 bottom of trolley platform sets slide block 8 can be along institute above knockout case
If the guide rail 9 on guide supporting seat 10 moves back and forth.It is multiple that trolley platform and open-and-close mechanism are visually actually needed setting.
Knockout case bracing frame includes the angle bar frame leg 17 of four support four side plates of knockout case, outside angle bar frame leg 17
It is respectively provided with the anti-rebound backing pin 18 of resilience when preventing sand block plate 14 from falling.This anti-rebound backing pin 18 is the spacing of sand block plate 14 again
Mechanism, after sand block plate 14 is opened, to can be utilized beveled end that it is carried out with card firm spacing, to avoid resilience pair for anti-rebound backing pin 18
Knockout process produces the uneven adverse effect of knockout.
When carrying out cloth sand test, first passing through rotating folding mechanism controls bar 1 makes the open-and-close mechanism of its bottom control pole spacing
Sand block plate 14 is locked by block 15, then test sand is placed in knockout case, connects suspension ring 12 by crane and hangs device
To the certain height and position of model clay upper box part.Adjust knockout highly after, remove open-and-close mechanism antirotation keys 7, reverse opening-closing machine
Structure control bar 1 makes middle the lacking of two blocks of sand block plates 14 of open-and-close mechanism control bar block 15 be aligned set by its lower end and link stopper cooperation
Mouthful, thus opening sand block plate 14, so that sand is fallen within the native case of model test by a series of uniform small pores leaking sand plate 13.Cloth
Sand closes sand block plate 14 after finishing, and removes open-and-close mechanism antirotation keys 7, and reversing open-and-close mechanism control bar 1 makes its end open-and-close mechanism
Control bar block 15 locks sand block plate 14, plugs open-and-close mechanism antirotation keys 7, then sand loading in knockout case, carries out cloth next time
Sand.Before open-and-close mechanism control bar block 15 locking sand block plate 14, open-and-close mechanism can be led on edge together with trolley platform on knockout case
Rail moves.
Embodiment 2:
The structure of this device is with embodiment 1.
Pass through in test to exchange and there is different base plate bore dias, the leakage sand plate of pitch of holes type, adjustment knockout height, sand
Particle diameter is controlling prepared sand sample packing.Can the use of Circularhole diameter be 20mm, 10mm, 5mm or the circle with taper guide hole
The leakage sand plate in hole is preparing the sand sample of different packings.By the change of three of the above different-diameter, carry out sand trail, to reach
To the result controlling sand difference packing.
Claims (7)
1. a kind of cloth sand device for preparing different packing sand samples in indoor model test it is characterised in that: it includes falling
Sandbox, trolley platform, open-and-close mechanism and bracing frame；Described knockout case side wall is the rectangle knockout casing of four pieces of side plate compositions, falls
Sandbox bottom is to be uniform-distribution with a series of leakage sand plates for leaking sand circular hole or conical bore, arranges two pieces of gears in leakage sand plate bottom
Sand plate, after sand block plate is closely sealed, its center is provided with breach, sand block plate and the knockout with the cooperation of open-and-close mechanism control bar block
Case side plate chain connection, opposite sides plate above knockout case arranges guide supporting seat, and guide supporting seat is provided with guide rail；Described
The guide rail that trolley platform can be arranged along along described knockout case moves back and forth, and described trolley platform is provided with knockout case described in folding
The described open-and-close mechanism of sand block plate；Described open-and-close mechanism includes control bar, and described control bar passes through open-and-close mechanism from bottom to top
Spring bottom plate, holddown spring, holddown spring securing member and securing member connecting rod are arranged on described trolley platform plate, described control
Bar bottom processed is by the leakage sand plate in described knockout bottom portion and two blocks of sand block plates, two pieces of sand blocks of block folding set by its lower end
Plate；Described knockout case is arranged on support frame as described above.
2. the cloth sand device for preparing different packing sand samples in indoor model test according to claim 1, it is special
Levy and be: the suspension ring of lifting are provided with described knockout case side plate.
3. the cloth sand device for preparing different packing sand samples in indoor model test according to claim 1, it is special
Levy and be: described sand block plate surface is pasted with stripper rubber.
4. the cloth sand device for preparing different packing sand samples in indoor model test according to claim 1, it is special
Levy and be: described sand block plate is connected with knockout case side plate using low-resistance spring hinge.
5. the cloth sand device for preparing different packing sand samples in indoor model test according to claim 1, it is special
Levy and be: described trolley platform includes trolley platform plate, below trolley platform plate, be provided with the cunning coordinating movement with described guide rail
Block.
6. the cloth sand device for preparing different packing sand samples in indoor model test according to claim 1, it is special
Levy and be: described open-and-close mechanism includes control bar, described trolley platform plate sets control open-and-close mechanism rotate and with control bar key
The antirotation keys connecting.
7. the cloth sand device for preparing different packing sand samples in indoor model test according to claim 1, it is special
Levy and be: support frame as described above includes the rack leg of four described four side plates of knockout case of support, sets respectively outside described rack leg
It is equipped with the anti-rebound backing pin of resilience when preventing sand block plate from falling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410372349.8A CN104111188B (en) | 2014-07-31 | 2014-07-31 | Sand distribution device for preparing sand samples of different degrees of density in indoor model experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410372349.8A CN104111188B (en) | 2014-07-31 | 2014-07-31 | Sand distribution device for preparing sand samples of different degrees of density in indoor model experiment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104111188A CN104111188A (en) | 2014-10-22 |
| CN104111188B true CN104111188B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410372349.8A Expired - Fee Related CN104111188B (en) | 2014-07-31 | 2014-07-31 | Sand distribution device for preparing sand samples of different degrees of density in indoor model experiment |
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| Country | Link |
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| CN (1) | CN104111188B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782593B (en) * | 2017-09-18 | 2020-02-18 | 东南大学 | Movable sand leaking device and sample preparation method for preparing sandy soil by using same |
| CN113848107A (en) * | 2021-09-15 | 2021-12-28 | 天津大学 | Saturated sandy soil preparation device and method suitable for indoor geotechnical model test tank |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256126A (en) * | 2008-03-25 | 2008-09-03 | 浙江大学 | Compression tester without disturbed soil |
| CN103128845A (en) * | 2013-02-07 | 2013-06-05 | 柳州煜华科技有限公司 | Automatic unloading device of autoclaved sand-lime brick raw material ageing technology |
| CN103278612A (en) * | 2013-04-26 | 2013-09-04 | 上海交通大学 | Sand rain-type filling device for geotechnical engineering model test |
| CN204008248U (en) * | 2014-07-31 | 2014-12-10 | 河南工业大学 | A kind of cloth sand device of preparing different packing sand samples for indoor model test |
-
2014
- 2014-07-31 CN CN201410372349.8A patent/CN104111188B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256126A (en) * | 2008-03-25 | 2008-09-03 | 浙江大学 | Compression tester without disturbed soil |
| CN103128845A (en) * | 2013-02-07 | 2013-06-05 | 柳州煜华科技有限公司 | Automatic unloading device of autoclaved sand-lime brick raw material ageing technology |
| CN103278612A (en) * | 2013-04-26 | 2013-09-04 | 上海交通大学 | Sand rain-type filling device for geotechnical engineering model test |
| CN204008248U (en) * | 2014-07-31 | 2014-12-10 | 河南工业大学 | A kind of cloth sand device of preparing different packing sand samples for indoor model test |
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| CN104111188A (en) | 2014-10-22 |
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| CB02 | Change of applicant information |
Inventor after: Xiao Zhaoran Inventor after: Zhou Zhiqiang Inventor after: Ji Zhanyong Inventor after: Zhu Liangliang Inventor after: Zheng Huamao Inventor after: Liu Die Inventor after: Wang Xiaoming Inventor after: Lv Qingxian Inventor before: Xiao Zhaoran Inventor before: Zhu Liangliang Inventor before: Zheng Huamao Inventor before: Liu Die Inventor before: Wang Xiaoming |
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| COR | Change of bibliographic data | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 Termination date: 20180731 |