CN203101095U

CN203101095U - Dual-layer soil sampling ring knife

Info

Publication number: CN203101095U
Application number: CN 201220681540
Authority: CN
Inventors: 王艳; 朱霖龙; 刘小玲; 王福亮
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2012-12-11
Filing date: 2012-12-11
Publication date: 2013-07-31
Anticipated expiration: 2022-12-11

Abstract

The utility model discloses a dual-layer soil sampling ring knife which comprises an upper ring knife, a lower ring knife and a steel wire saw, wherein the upper ring knife is a barrel open at upper and lower ends; the lower ring knife is also a barrel open at upper and lower ends; a ring-shaped boss is formed on the inner wall of the lower ring knife; the upper ring knife is mounted in the lower ring knife from the upper open end of the lower ring knife and arranged on the upper surface of the ring-shaped boss; an axial hole is formed in the side wall at the upper half part of the lower ring knife; a circumferential groove communicated with the lower end of the axial hole is formed in the inner wall at the lower half part of the lower ring knife; a cutting edge is arranged at the periphery of the outer wall at the bottom of the lower ring knife; the steel wire saw comprises two steel wires and two pull rings connected to the two ends of each steel wire; the two pull rings can be dismounted from the steel wires; the middle sections of the steel wires are positioned in the axial groove of the lower ring knife; and the pull rings at the two ends of each steel wire are both outside the axial hole of the lower ring knife. According to the dual-layer soil sampling ring knife, the problems of low possibility of guaranteeing the volume of a soil sample and time and energy waste in the soil sampling process of the conventional ring knife are effectively solved.

Description

A kind of bilayer cutting ring that fetches earth

Technical field

The utility model relates to a kind of cutting ring that fetches earth, and specifically is a kind of bilayer cutting ring that fetches earth.

Background technology

The cutting ring that fetches earth be used for getting undisturbed soil measure test such as the wet density of the soil body, compression, shearing and infiltration must indispensable a kind of common instrument.At present, the cutting ring that fetches earth commonly used is cylindrical, and the bottom has circular blade, and upside is without any processing.When utilizing its soil sampling, the bottom cutting edge of cutting ring is pressed in the soil downward vertically, in the cutting ring tube, be full of sample till.Cut native cutter by artificial usefulness again and cut cutting ring soil on every side, take out the cutting ring of having filled soil, the cutting ring of carefully pruning is the unnecessary soil in two ends up and down, and clean the soil of cutting ring outer wall.From said process as can be seen, when from the soil body, taking out the cutting ring of filling soil, because soil has adhesive force, the soil in the cutting ring and the soil of soil layer remain one, need manually with cutting native cutter cut-out, this particularly difficulty that when sampling depth is big, seems, and cause cutting ring bottom soil body deficiency easily, influence soil body volume in the cutting ring, and then cause measuring accuracy to reduce, simultaneously, make that also test period prolongs greatly owing to get the increase of cutting ring mortality.

Summary of the invention

At above-mentioned deficiency of the prior art, the purpose of this utility model is, a kind of bilayer cutting ring that fetches earth is provided, and this cutting ring effectively solves soil sample volume that existing cutting ring exists and is difficult for the problem that guarantees, waste time and energy in the body process that fetches earth.

For solving the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of bilayer cutting ring that fetches earth comprises upper strata cutting ring, lower floor's cutting ring and fret-saw;

Described upper strata cutting ring is the cylinder of upper and lower opening;

Described lower floor cutting ring also is the cylinder of upper and lower opening, the first half of upper strata cutting ring is big than the latter half internal diameter, thereby form the annular boss of a level on one week of lower floor's cutting ring inwall, the upper strata cutting ring is from pack into lower floor's cutting ring and be shelved on the annular boss upper surface of lower floor's cutting ring upper end open; The first half clearance fit of lower floor's cutting ring and upper strata cutting ring; On the sidewall of the first half of lower floor's cutting ring, axial hole is arranged, have the circumferential slot that is connected with the axial hole lower end on the latter half inwall; One week of bottom outer wall of lower floor's cutting ring has cutting edge;

Two draw rings that described fret-saw comprises two steel wires and is connected the steel wire two ends, two draw rings can be dismantled from steel wire.The stage casing of steel wire is positioned at the axial groove of lower floor's cutting ring, and the draw ring at the two ends of steel wire is all outside the axial hole of lower floor's cutting ring.

Compared with prior art, the utlity model has following advantage: the double-decker of cutting ring makes that the soil sample and the volume of cutting ring inside are not subjected to because of the artificially interference of excavation the soil sampling process at the middle and upper levels, remove the human factor in the process of the test, improved test accuracy.Adopt fret-saw to cut off the root soil body, reduced the workload of hand excavation's cutting ring, saved test period.

Description of drawings

Fig. 1 is the structural representation synoptic diagram of the existing cutting ring that fetches earth.

Fig. 2 is a structural representation of the present utility model.

Fig. 3 is the structural representation of lower floor's cutting ring.

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 is the structural representation of fret-saw.

Below by the drawings and specific embodiments the utility model is described in further detail.

Embodiment

As Fig. 2-shown in Figure 5, the bilayer of the present utility model cutting ring that fetches earth comprises upper strata cutting ring 1, lower floor's cutting ring 2 and fret-saw.

Described upper strata cutting ring 1 is the cylinder of upper and lower opening, and its volume size depends on the volume of the body that fetches earth.

Described lower floor cutting ring 2 also is the cylinder of upper and lower opening, the first half of upper strata cutting ring 1 is big than the latter half internal diameter, thereby form the annular boss 3 of a level on one week of 2 inwalls at lower floor's cutting ring, upper strata cutting ring 1 is from pack into lower floor's cutting ring 2 and be shelved on annular boss 3 upper surfaces of lower floor's cutting ring 2 upper end open; The first half clearance fit of lower floor's cutting ring and upper strata cutting ring 1; On the sidewall of the first half of lower floor's cutting ring 2, axial hole 5 is arranged, have the circumferential slot 4 that is connected with axial hole 5 lower ends on the latter half inwall; One week of bottom outer wall of lower floor's cutting ring 2 has cutting edge 8.

Described fret-saw comprises two steel wires 6 and is connected 7, two draw rings 7 of two draw rings at steel wire 6 two ends can be from steel wire 6 dismounting.The stage casing of steel wire 6 is positioned at the axial groove 4 of lower floor's cutting ring 3, and the draw ring 7 at the two ends of steel wire 6 is all outside the axial hole 5 of lower floor's cutting ring 2.

Use bilayer of the present utility model to fetch earth process that cutting ring carries out soil body sampling:

1) fret-saw is penetrated in the axial groove 4 of lower floor's cutting ring 3 from axial hole 5, make the stage casing of steel wire 6 be positioned at the axial groove 4 of lower floor's cutting ring 3, and the draw ring 7 at the two ends of steel wire 6 is all outside the axial hole 5 of lower floor's cutting ring 2.

2) upper strata cutting ring 1 is packed into lower floor's cutting ring 2.

3) the double-deck cutting ring that will assemble vertically is pressed in the soil, is full of sample in the cutting ring of upper strata.

4) two ends of pulling fret-saw are till the regolith transversely cutting with upper strata cutting ring 1 lower end.

5) take out upper strata cutting ring 1 and inner soil sample thereof and the careful unnecessary soil in upper strata cutting ring 1 two ends of pruning, and clean the soil of cutting ring outside, sampling is finished.

Claims

1. bilayer cutting ring that fetches earth is characterized in that, comprises upper strata cutting ring (1), lower floor's cutting ring (2) and fret-saw;

Described upper strata cutting ring (1) is the cylinder of upper and lower opening;

Described lower floor cutting ring (2) also is the cylinder of upper and lower opening, the first half of upper strata cutting ring (1) is big than the latter half internal diameter, thereby go up the annular boss (3) that forms a level in lower floor's cutting ring (2) inwall one week, upper strata cutting ring (1) is from pack into lower floor's cutting ring (2) and be shelved on annular boss (3) upper surface of lower floor's cutting ring (2) upper end open; The first half clearance fit of lower floor's cutting ring and upper strata cutting ring (1); On the sidewall of the first half of lower floor's cutting ring (2), axial hole (5) is arranged, have the circumferential slot (4) that is connected with axial hole (5) lower end on the latter half inwall; One week of bottom outer wall of lower floor's cutting ring (2) has cutting edge (8);

Two draw rings (7) that described fret-saw comprises two steel wires (6) and is connected steel wire (6) two ends, two draw rings (7) can be dismantled from steel wire (6), the stage casing of steel wire (6) is positioned at the axial groove (4) of lower floor's cutting ring (3), and the draw ring (7) at the two ends of steel wire (6) is all outside the axial hole (5) of lower floor's cutting ring (2).