CN2397257Y

CN2397257Y - Drill for taking sample of sandy soil

Info

Publication number: CN2397257Y
Application number: CN 99246125
Authority: CN
Inventors: 常兆丰; 王继和; 张德魁
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-10-06
Filing date: 1999-10-06
Publication date: 2000-09-20
Anticipated expiration: 2009-10-06

Abstract

The utility model discloses a drill for taking sample of sandy soil, which comprises an external tube which is composed of an arc-shaped tube wall, an upper sleeve ring and a lower sleeve ring and provided with a handle and a pin hole on the upper part, an internal tube which is placed in the external tube, provided with a long stripe-shaped soil charging hole in the longitudinal direction, installed internally with a plurality of layering partition boards and provided with a handle and a pin hole on the upper part, and a drill-shaped bit which is installed on the lower end of the internal tube, wherein, the internal tube and the external tube form concentric circles. Operation of taking sample can be completed by rotating the internal tube and the external tube. The utility model can take sample of soil from a plurality of layers at one time. The utility model is high in precision of taking sample. Simultaneously, the utility model is suitable for taking sample from deep layers of marshlands and slurry.

Description

Sandy soil soil sample geotome

The utility model relates to the soil sample instrument, particularly a kind of sandy soil soil sample geotome.

Existing soil sample geotome fetches earth and obtains the deep layer soil sample by repeatedly upwards carrying soil from upper soll layer, and it almost is impossible extracting drier loose sandy soil soil sample with this earth boring auger.Therefore, the way of getting sandy soil deep layer soil sample at present generally all is that the control hollow place is got section, but because dry sand is looser, easily the landing ginseng and, influence the soil sample precision, and ten minutes is taken a lot of work.

The purpose of this utility model provides a kind of geotome of can disposable layering obtaining the multilayer sandy soil soil sample of different depths, its sampling precision height, saving of work and time.

The concrete technical scheme that realizes the utility model purpose is: geotome comprise one by the arc tube wall, go up the collar and lower collar is formed and the outer tube of one handle and pin-and-hole is arranged at top; One place in the outer tube and vertically have a strip advance Tu Kou, advance a soil mouthful side have several layering dividing plates are arranged in a clean-up scraper to this mouthful inclination, the pipe, one handle and pin-and-hole are arranged at pipe top interior pipe; One is contained in interior pipe lower end maximum radius and the outward-dipping taper bit of mutually the same outer edge surface of outer tube radius; The collar and lower collar ring wall cross section are triangle on the outer tube, and the point of corner contacts with interior pipe on the triangle, and an opening is arranged on the lower collar, and the lower collar lower edge is a zigzag, only have several points to contact with the taper bit ramp; Clean-up scraper on the interior pipe also can be located on the arc tube wall of outer tube, and the layering dividing plate is identical with the outer radius of interior pipe at the radius at interior tube opening place.

The utility model once can be obtained the multilayer soil sample, the sampling precision height.The more existing inclined-plane of taper bit drill bit easily inserts in sandy soil or the soil, rotates when fetching earth, and the sandy soil of clean-up scraper front can be scraped in the brill easily, so rotate not really effort, when upwards extracting, on every side because sandy soil have been scraped in the brill, bore and combine not really consolidation, so more laborsaving with sandy soil.Also be applicable to simultaneously the deep layer sampling of swamp land or other mud.

Accompanying drawing is the utility model structural representation

Among the figure: the collar, 4-outer tube handle, 5-advance pipe, 9-layering dividing plate, 10-scale groove, 11-opening, 12-outer tube lower collar, 13-drill bit in Tu Kou, 6-arc tube wall, 7-clean-up scraper, the 8-on the interior pipe of 1-handle, 2-fixed pin holes, the 3-outer tube

Below in conjunction with accompanying drawing the utility model is described in detail:

For the resistance that reduces friction, the collar 3 and lower collar 12 ring wall cross sections are triangle on the outer tube, have only the point of corner on the triangle to contact with interior pipe 8, and lower collar 12 lower edges are zigzag, have only several points to contact with taper bit 13 ramps.Interior pipe 8 is a concentric circles with outer tube.Under move outer tube handle 4 and interior pipe handle 1 before drilling through soil, make the arc tube wall 6 of outer tube advance soil mouthfuls 5 on the pipe 8 in covering, this moment, outer tube and interior pipe 8 had a pair of fixed pin holes just in time neat, pinned and promptly closed into soil mouthfuls 5.To bore down to the degree of depth that fetches earth that needs then, because of the scale groove 10 of the degree of depth of indicating is arranged on the clean-up scraper 7, move outer tube handle 4 and interior pipe handle 1 again, the arc tube wall 6 of outer tube and the soil mouth 5 that advances on the interior pipe 8 are staggered mutually, fixed pin holes is just in time neat on another fixed pin holes on the outer tube and the interior pipe 8 at this moment, pins to make into native mouthful 5 to be in opening.Rotate a drill body and soil can be blown in the brill to advancing soil mouthful 5 directions along clean-up scraper 7, rotate outer tube more in opposite direction, close into soil mouthfuls 5 and go out earth boring auger with regard to desirable.Outer tube lower collar 12 has an opening 11, take out earth boring auger after, extract the pin of fixed pin holes, manage 8 in 11 1 sections one section extractions of opening that can clean-up scraper on the interior pipe 87 aim on the outer tube lower collar 12 this moment, take out soil sample.Finish sampling work.

If only need the deep layer sampling, enclosed shape can be made in outer tube top, can reduce the resistance when rotating sampling like this.

Claims

1. sandy soil soil sample geotome is characterized in that it comprises: one by arc tube wall (6), go up the collar (3) and lower collar (12) is formed and the outer tube of one handle (4) and pin-and-hole (12) is arranged at top; One place in the outer tube and vertically have a strip advance Tu Kou (5), advance Tu Kou (5) one sides have several layering dividing plates (9) are arranged in a clean-up scraper to this mouthful inclination (7), the pipe, one handle (1) and pin-and-hole are arranged at pipe top interior pipe (8), one is contained in interior pipe () lower end maximum radius and the outward-dipping taper bit (13) of mutually the same outer edge surface of outer tube outer radius.

2. geotome according to claim 1, it is characterized in that the collar on the described outer tube (3) and lower collar (12) ring wall cross section are triangle, the point of corner contacts with interior pipe on the triangle, one opening (11) is arranged on the lower collar (12), lower collar (12) lower edge is a zigzag, only has several points to contact with taper bit (13) ramp.

3. geotome according to claim 1 is characterized in that the clean-up scraper (7) of described interior pipe (8) also can be located on the arc tube wall (6) of outer tube, and layering dividing plate (9) is identical with the outer radius of interior pipe at the radius at interior tube opening place.