CN206459849U

CN206459849U - One kind fetches earth instrument

Info

Publication number: CN206459849U
Application number: CN201720192209.1U
Authority: CN
Inventors: 魏鹏飞; 黄浩; 肖栋; 季佳鹏; 吴东
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2017-03-01
Filing date: 2017-03-01
Publication date: 2017-09-01
Anticipated expiration: 2027-03-01

Abstract

Fetched earth instrument the utility model discloses one kind, including a rectangle frame and section knife, the lower end of the rectangle frame is provided with rectangle cutting ring, the section knife can be inserted into rectangle frame, a runner frame is respectively equipped with along two ends on the side of rectangle frame one, runner frame is provided with chute, and the section knife can be inserted in rectangle frame by chute, and when in section knife insertion rectangle frame, section knife is equal with the floor space of rectangle frame bottom in the shaded area that rectangle frame bottom is formed；The tradition that the utility model eliminates fetch earth artificial shovel soil sample in method, the step of strike off cutting ring, can quickly and easily take out the soil sample of fixed volume, the volumetric errors of soil sample are significantly less than the soil sample taken using traditional core cutter method.

Description

One kind fetches earth instrument

Technical field

The utility model is related to soil test field, and in particular to one kind fetches earth instrument.

Background technology

Compactness is one of key index of subgrade and pavement detection of construction quality, close after soil matrix field compaction for characterizing Degree situation, compactness is higher, and density is bigger, and material overall performance is better.Core cutter method is the biography of measurement soil compaction degree in construction System method, the committed step of test operation is：1st, dropped hammer with soil sampler and cutting ring is squeezed into compacting soil layer；2nd, with pick by cutting ring and examination Sample is dug out；3rd, with the remaining soil for repairing native knife and being pruned from periphery to center cutting ring two ends, and with ruler detection untill equating.

But there are the following problems in application core cutter method：When being spent using core cutter method test soil compaction, it is necessary to after fetching earth Traditional cutting ring carry out it is artificial scabble processing, the step in manually strike off error that unnecessary local products give birth to soil body sample volume Accuracy has certain influence, so that the reliability of test index compactness can be reduced；Meanwhile, manually scabble soil sample it is cumbersome and Time-consuming (cutting ring is dug out with pick and soil sample is cumbersome and time-consuming many).

The content of the invention

For problems of the prior art, the purpose of this utility model is that providing one kind fetches earth instrument, and this fetches earth Instrument can use the soil sample of fixed volume, and operation is simple, eliminates in existing soil sampler and manually strikes off to volume of sample The influence of the degree of accuracy.

In order to achieve the above object, the utility model is achieved using following technical scheme.

One kind fetches earth instrument, including a rectangle frame and section knife, and the lower end of the rectangle frame is provided with rectangle cutting ring, described section Face knife can be inserted into rectangle frame, be respectively equipped with a runner frame along two ends on the side of rectangle frame one, runner frame is provided with cunning Groove, the section knife can be inserted in rectangle frame by chute, and when in section knife insertion rectangle frame, section knife is at rectangle frame bottom The shaded area that portion is formed is equal with the floor space of rectangle frame bottom.

Further, the section knife includes cutter hub, and one end of the cutter hub is provided with a flat board, and the both sides of the flat board are convex Go out the both sides of cutter hub, and the side of flat board can be slided in chute.

Further, if the rectangle frame side being connected with the runner frame is longer side limit, then another group of side is shorter Side, the upper edge of the shorter lateral sides is respectively equipped with a depth scaling board, and the depth scaling board is extended to outside rectangle frame.

Further, the depth scaling board is provided with a circular hole.

Further, in addition to a cover plate, the cover plate is identical with the top surface shape and size of rectangle frame.

Further, the runner frame be articulated and connected on rectangle frame side along at two ends.

Compared with prior art, the beneficial effects of the utility model are：

The utility model is improved the soil sampler of traditional core cutter method soil sampling, so that the method step of soil sampling It is rapid simple and easy to apply, eliminate tradition fetch earth artificial shovel soil sample in method, the step of strike off cutting ring, can quickly and easily take out described The soil sample of (fixation) volume, the volumetric errors (error range) of soil sample are significantly less than the soil sample taken using traditional core cutter method.

Brief description of the drawings

Fig. 1 is a kind of structural representation for the instrument that fetches earth of the present utility model；

Fig. 2 is a kind of fractionation structural representation for the instrument that fetches earth of the present utility model；

Label is represented as in figure：1,2-longer side limit；3,4-shorter lateral sides；5-rectangle cutting ring；6-cover plate；7-deep Scale fixed board；8-runner frame；9-chute；10-section knife；11-circular hole.

Embodiment

Embodiment of the present utility model is described in detail below in conjunction with embodiment, but those skilled in the art Member will be understood that the following example is merely to illustrate the utility model, and is not construed as limiting scope of the present utility model.

The tradition that the instrument of fetching earth of the present utility model eliminates fetch earth artificial shovel soil sample in method, the step of strike off cutting ring, can The soil sample of the volume is quickly and easily taken out, the volumetric errors (error range) of soil sample are significantly less than using traditional core cutter method institute The soil sample taken.

Embodiment 1

Present embodiments provide one kind to fetch earth instrument, including a rectangle frame and section knife 10, the lower end of the rectangle frame is set There is rectangle cutting ring 5, the section knife 10 can be inserted into rectangle frame, a cunning is respectively equipped with along two ends on the side of rectangle frame one Truss 8, runner frame 8 is provided with chute 9, and the section knife 10 can be inserted in rectangle frame by chute 9, and when section knife 10 is inserted When in rectangle frame, section knife 10 is equal with the floor space of rectangle frame bottom in the shaded area that rectangle frame bottom is formed, section knife 10 top soil sample be fixed volume soil sample, can so take out soil sample be shaped as it is triangular prism shaped.

Runner frame (8) be articulated with rectangle frame side on along at two ends, runner frame can change the angle with horizontal plane, from And make it that the angle in the insertion rectangle frame of section knife 10 changes, you can so that the volume that fetches earth changes.

The section knife 10 includes cutter hub, and one end of the cutter hub is provided with a flat board, the both sides protrusion cutter hub of the flat board Both sides, and the side of flat board can slide in chute 9 so that section knife 10 will not run-off the straight when inserting in rectangle frame.

If the rectangle frame side being connected with the runner frame 8 is longer side limit 1,2, then another group of side is shorter lateral sides 3, 4, the upper edge of the shorter lateral sides 3,4 is respectively equipped with a depth scaling board 7, and the depth scaling board 7 is extended to outside rectangle frame, The depth that rectangle frame inserts soil is demarcated, so that the convenient volume for determining soil.

The depth scaling board 7 is provided with a circular hole 11, to facilitate operating personnel in the native hack lift of instrument insertion that fetches earth Go out the instrument that fetches earth.

Specific work process：

1st, it is in test site, soil matrix floor cleaning is clean, and the part of the floating of compacting layer surface and out-of-flatness is scalped, reach Certain depth, makes that after above-mentioned soil sampler lays, the depth that fetches earth of requirement can be reached, but must not disturb lower floor；

2nd, the instrument of fetching earth of the present utility model is placed on and cutd open under soil (soil matrix) surface after putting down, the rectangle frame for the instrument that fetches earth The rectangle cutting ring at end downwards, acts on cover plate the instrument that will fetch earth by iron hammer or other external force and is vertically pressed into soil, until taking Depth scaling board in soil working tool is with cuing open soil (soil matrix) flush after putting down；

3rd, section knife is inserted by chute inside the rectangle frame for the instrument that fetches earth by external force, now, the soil in rectangle frame Sample is divided, and removes the soil sample that the soil sample above the cover plate of cavity, section knife is fixed volume；

4th, the circular hole caught on finger or other instruments on depth scaling board 7 will be full of fetching earth for soil (soil sample) in cavity Instrument extracts soil (soil matrix).

Claims

The instrument 1. one kind fetches earth, it is characterised in that including a rectangle frame and section knife (10), the lower end of the rectangle frame is provided with square Shape cutting ring (5), the section knife (10) be can be inserted into rectangle frame, and a cunning is respectively equipped with along two ends on the side of rectangle frame one Truss (8), runner frame (8) is provided with chute (9), and the section knife (10) can be inserted in rectangle frame by chute (9), and ought be cut When in face knife (10) insertion rectangle frame, shaded area and the bottom surface of rectangle frame bottom that section knife (10) is formed in rectangle frame bottom Product is equal.
2. the instrument as claimed in claim 1 that fetches earth, it is characterised in that the section knife (10) includes cutter hub, the cutter hub One end is provided with a flat board, and the both sides of cutter hub are protruded in the both sides of the flat board, and the side of flat board can be slided in chute (9).
3. the instrument as claimed in claim 1 that fetches earth, it is characterised in that set the rectangle frame side being connected with the runner frame (8) For longer side limit (1,2), then another group of side is shorter lateral sides (3,4), and the upper edge of the shorter lateral sides (3,4) is respectively equipped with one Depth scaling board (7), the depth scaling board (7) is extended to outside rectangle frame.
4. the instrument as claimed in claim 3 that fetches earth, it is characterised in that the depth scaling board (7) is provided with a circular hole (11).
5. the instrument as claimed in claim 1 that fetches earth, it is characterised in that also including a cover plate (6), the cover plate (6) and rectangle The top surface shape of frame is identical with size.
6. the instrument as claimed in claim 1 that fetches earth, it is characterised in that the runner frame (8) is articulated and connected in rectangle frame side On along at two ends.