CN2132177Y

CN2132177Y - Manual directly-compressed soil-sampling tool

Info

Publication number: CN2132177Y
Application number: CN 92227702
Authority: CN
Inventors: 杨学明; 贾书刚
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-15
Filing date: 1992-07-15
Publication date: 1993-05-05
Anticipated expiration: 2002-07-15

Abstract

The utility model relates to a manual vertically-compressed soil-sampling drill for original soil, which is suitable for the samples of teaching, scientific research and production departments associated with soil and which is mainly composed of a drill bit, a drill barrel, a connecting socket, a drill rod, etc. The drill bit has an inner diameter smaller than or equal to the drill barrel to form an inner bulge. The drill bit in a cone shape outside has an outer diameter larger than or equal to the drill barrel to form an outer bulge. Thus, the drill bit has the structure of double bulges. The drill bit is not provided with openings, but the drill barrel is provided with an opening equivalent to the point diameter of the drill bit. The utility model is provided with a compound rod and marks for the inheritance of depth and scale. Due to the adoption of the structure, the utility model reduces soil resistance and keep the original structure of soil samples.

Description

Manual directly-compressed soil-sampling tool

The utility model belongs to the drilling technology field, is a kind of direct press type undisturbed soil soil sample barrel.Be used for taking the soil analysis sample, soil is observed and is described sample and gather soil column sample, is suitable for the teaching relevant with soil, scientific research and production division.

Press the sampling mode difference, geotome has following three types: direct press type, spiral and hammering adding pressure type.Spiral and paddle type mill utilizes pressurization rotation and gravity to impact respectively and makes drill body enter the soil body, reach the purpose that fetches earth.But in sampling process, soil is agitated, and can not get desirable original-state soil sample; The direct press type geotome can be obtained comparatively ideal undisturbed soil sample.

At present, no matter be direct press type, still rotary or paddle type mill bores all fails really to overcome the sampling resistance, let alone gets the deep layer undisturbed soil sample.Bore as common twist drill, Xiong Yi brill, spiral opening, vertical compression opening brill, Luoyang Spade etc. all fail really to play a role in practice.

The purpose of this utility model provides a kind of manual undisturbed soil geotome of direct press type that reduces soil resistance.The utility model in use need not excavate the soil profile hole, only with people's operation, just can obtain like a cork and require degree of depth interior profile original-state soil sample.Become possibility thereby make earth boring auger get the section undisturbed soil sample, and alleviate the hard work of open-air section sampling greatly, and the flooded soils sampling that conventional method can not be taken a sample becomes possibility.

The utility model mainly is made up of drill bit, brill tube, Connection Block, drilling rod etc.The non-opening of drill bit, drill bit is fixedlyed connected with the brill tube, and the drill bit internal diameter is less than or equal to a brill tube internal diameter.The drill bit outside is taper, and drill bit awl end external diameter is more than or equal to boring the tube external diameter.Drill bit tube relatively forms " biconvex " structure.

Fig. 1 is the utility model structural drawing.1 is drill bit among the figure, and 2 for boring tube, 3 Connection Blocks, 4 drilling rods.

Fig. 2, Fig. 3 are the utility model cut-open view.5 is convex among the figure, 6 evaginations, and 7 is mouth.

In the utility model drill bit 1 is hollow garden post, and the outside is tapered, therefore, forms the drill bit cutting edge in drill bit 1 bottom, makes drill bit 1 more easily enter soil.Drill bit 1 is fixedlyed connected with brill tube 2, and drill bit 1 internal diameter is less than or equal to the internal diameter that bores tube 2, forms convex 5.The size of convex 5 is 0.0～1.5mm.Drill bit 1 awl end external diameter forms evagination 6 more than or equal to the external diameter that bores tube 2.The size of evagination 6 is 0.0～2.5mm.Drill bit 1 is " biconvex " structure.Drill bit 1 non-opening is cut out the mouth 7 that be parallel to axle suitable with drill bit 1 cutting edge diameter on brill tube 2.When fetching earth with the utility model, through port 7 takes out soil sample.Drilling rod 4 is by Connection Block 3, and tube 2 is fixedly connected with boring, and drilling rod 4 adopts combined type, when drilling rod 4 mobile jib length can not satisfy the sampling depth requirement, connects secondary bar until the degree of depth that requires.On drill bit 1, brill tube 2, Connection Block 3 and drilling rod 4, the succession deep calibration can be set, be convenient to determine the degree of depth that fetches earth.

The utility model " biconvex " structure decrease the drill body inwall with the friction force of the post that fetches earth and the drill body outer wall and the peripheral soil body.Operation only need overcome the resistance of drill bit cutting edge to " biconvex " 8 this sub-fraction, and is easy to use, saves time, laborsaving.Convex also helps the maintenance of undisturbed soil.Drill body sanction one and the suitable mouth of drill bit cutting edge diameter.This both had been beneficial to soil column and had taken out, and can prevent that again opening from crossing the havoc soil column.Mobile jib adds the length of drill body and should conveniently be advisable according to manually-operated.During the deep layer sampling, the secondary bar of adapted.Make easy to operationly like this, can satisfy the requirement of different sampling depths again.

The utility model drilling tool has simple in structure, and is easy to use, is suitable for characteristics such as the non-stone matter of multiple edaphic condition sampling.During operation, only earth boring auger vertically need be depressed, be depressed into drill body at every turn and contain the degree of depth that soil allows, take out earth boring auger along former mark, take out earth pillar, vertical compression is to the degree of depth that is allowed again.When mobile jib length does not satisfy the sampling depth requirement, connect secondary bar until the degree of depth that requires.In the start-stop position of boring the certain volume of marking on the tube, wherein soil sample can be used for soil weight mensuration.

As shown in drawings, the utility model can come to determine the related parameter that has of earth boring auger as required.

Claims

1, the manual undisturbed soil geotome of a kind of direct press type is made up of drill bit 1, brill tube 2, drilling rod 4 and Connection Block 3 etc., it is characterized in that being in the drill bit 1 hollow garden post, drill bit 1 is " biconvex " structure, internal diameter is less than or equal to the internal diameter that bores tube 2, forms convex 5, and convex 5 sizes are 0.0～1.5mm; Drill bit 1 outside is cone shape, and awl end external diameter forms evagination 6 more than or equal to boring tube 2 external diameters, and evagination 6 sizes are 0.0～2.5mm.

2, the manual undisturbed soil geotome of direct press type according to claim 1 is characterized in that drill bit 1 internal diameter equals to bore tube 2 internal diameters, and drill bit 1 awl end external diameter forms outer male structure greater than boring tube 2 external diameters.

3, the manual undisturbed soil geotome of direct press type according to claim 1 is characterized in that drill bit 1 awl end external diameter equals to bore tube 2 external diameters, and drill bit 1 internal diameter is less than boring tube 2 internal diameters, male structure in forming.

4, the manual undisturbed soil geotome of direct press type according to claim 1 is characterized in that drill bit 1 non-opening, bores and to open mouthfuls 7 of a parallel shafts suitable with drill bit 1 cutting edge diameter on the tube 2.