CN105628459A

CN105628459A - Screw-in type soil sample preparation device

Info

Publication number: CN105628459A
Application number: CN201410603970.0A
Authority: CN
Inventors: 张伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-11-03
Filing date: 2014-11-03
Publication date: 2016-06-01

Abstract

The invention relates to a screw-in type soil sample preparation device. The tail end of the screw-in type soil sample preparation device is provided with an external thread layer, and a tail cover; the tail cover is provided with internal threads, so that the tail cover sleeves the tail end of the screw-in type soil sample preparation device and can be screwed down; the center of the tail cover of the screw-in type soil sample preparation device is fixedly provided with a rotating shaft; the rotating shaft is provided with a though hole; the rotating shaft can be penetrated by a metal rod with a length larger than the diameter of the tail cover of the screw-in type soil sample preparation device through the through hole; the screw-in type soil sample preparation device can be driven to rotate conveniently via rotating the metal rod; in working, the end surfaces of knife edges of the screw-in type soil sample preparation device shape like inverted triangles, knifepoints are arranged to be downward, the width of the projections of knife tails in the vertical direction is larger than the thickness of the wall of the screw-in type soil sample preparation device; the upper edges of the triangular knife edge end surfaces incline downward from inside to outside at the contact parts with the wall of the screw-in type soil sample preparation device; the horizontal lines of the upper edges of the triangular knife edges contacted with the wall of the screw-in type soil sample preparation device are provided with hole uniformly, and the wall of the screw-in type soil preparation device are penetrated by the holes, so that the knife edges can be penetrated into soil sample more conveniently for soil sampling.

Description

A kind of Screw-in type soil sample preparation tool

Technical field

The present invention relates to civil engineering sampling instrument field, particularly relate to a kind of preparation of soil sample instrument.

Background technology

Preparation of soil sample instrument is a kind of testing equipment for soil test, is mainly used to produce soil sample, for measuring the tests such as the density of soil, water content. Preparation of soil sample instrument is a rigidity, both ends open column type sleeve substantially, and wherein one end is with than sharp cutting edge. When specifically used, first preparing relatively larger soil body sample, be then placed on soil sample by preparation of soil sample instrument, cutting edge contacts with specimen surface, is then firmly pressed downward against, and makes preparation of soil sample instrument enter soil sample. Firmly make in the process that preparation of soil sample instrument moves downward, in the soil sample of the blade incision periphery of preparation of soil sample instrument, when preparation of soil sample instrument completely into and after penetrating soil sample layer, the soil sample in preparation of soil sample instrument is taken out and has just made complete soil sample. In traditional experiment, be directly press mode by hand preparation of soil sample instrument is pressed into downwards soil sample, if but run into the sample that soil property is hard, the edge of a knife be not easy incision, simplified manual press-in especially difficulty. Therefore, it is necessary to preparation of soil sample instrument press-in soil sample mode and the edge of a knife are improved so that it is can be pressed into easily in certain degree of hardness sample.

Summary of the invention

Materials in hard soil property in order to convenient, the present invention proposes a kind of Screw-in type soil sample preparation tool, the preparation of soil sample instrument tail end that fetches earth has an external screw thread layer, and increase a tail-hood, tail-hood has female thread tail-hood can be enclosed within preparation of soil sample instrument afterbody and screw, tail-hood center is fixed with rotating shaft, rotating shaft has a hole penetrating rotating shaft, by this hole, one root length degree can be exceeded the metallic rod of preparation of soil sample instrument tail-hood diameter and be through in rotating shaft, by rotating metallic bar, preparation of soil sample instrument can be driven easily to rotate, preparation of soil sample instrument is made to smoothly enter in hard soil sample.

Further improvement of the present invention, during preparation of soil sample tool work, edge of a knife end face is del, point of a knife is downward, cutter tail in the projection width of vertical direction more than preparation of soil sample tool wall thickness, the triangle top of edge of a knife end face is downward-sloping from inside to outside in the contact position of preparation of soil sample tool wall, the triangle top of edge of a knife end face is uniformly distributed hole on the horizontal line of the contact position of preparation of soil sample tool wall, hole penetrates preparation of soil sample tool wall, easily incision soil sample produces soil sample, soil sample is not easily blocked, it is to avoid causes and is not easily taken out of phenomenon.

The present invention achieves techniques below effect:

By the present invention, preparation of soil sample instrument is improved, available common manual pressure mode, can will soil sample hard for the press-in of preparation of soil sample instrument be materialsed smoothly. Overall sampling process uniform force application, improves efficiency and the quality of sampling.

Accompanying drawing explanation

Figure l is the Screw-in type soil sample preparation tool schematic diagram of the present invention.

Detailed description of the invention

Understanding for the ease of those of ordinary skill in the art and implement the present invention, below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail.

Embodiment l:

As shown in Figure l, one Screw-in type soil sample preparation tool of the present invention includes preparation of soil sample instrument l and the edge of a knife 3; Preparation of soil sample instrument l adopts rustless steel to make, diameter 70mm, high 53mm, the thickness 2mm of preparation of soil sample instrument l wall. Fetch earth capacity 200cm3, an external screw thread layer 2 is had at the preparation of soil sample instrument l tail end that fetches earth, and increase a tail-hood 4, tail-hood 4 has female thread tail-hood 4 can be enclosed within preparation of soil sample instrument afterbody and screw, preparation of soil sample instrument tail-hood 4 center is fixed with rotating shaft 5, rotating shaft 5 has a hole penetrating rotating shaft, by this hole, one root length degree can be exceeded the metallic rod 6 of preparation of soil sample instrument tail-hood diameter and be through in rotating shaft, by rotating metallic bar 6, preparation of soil sample instrument l can be driven easily to rotate, make preparation of soil sample instrument l smoothly enter in hard soil sample 7. During preparation of soil sample instrument l work, the edge of a knife 3 end face is del, and the drift angle of inverted triangle is 10 degree of isosceles triangles, and height is 9mm. Point of a knife is downward, cutter tail in the projection width of vertical direction more than preparation of soil sample instrument l wall thickness 1mm. Triangle top is downward-sloping from inside to outside in the contact position of preparation of soil sample tool wall, and the triangle top of edge of a knife end face is uniformly distributed hole on the horizontal line of the contact position of preparation of soil sample tool wall, and hole penetrates preparation of soil sample tool wall. In such Screw-in type soil sample preparation tool is sampled on soil sample weight tray 8, will easily pass soil sample, carry out soil sample and produce.

Claims

1. a Screw-in type soil sample preparation tool, it is characterized in that: have an external screw thread layer (2) at preparation of soil sample instrument (1) tail end that fetches earth, and increase preparation of soil sample instrument tail-hood (4), tail-hood (4) has female thread tail-hood (4) can be enclosed within preparation of soil sample instrument afterbody and screw, tail-hood (4) center is fixed with rotating shaft (5), rotating shaft (5) has a hole penetrating rotating shaft, by this hole, one root length degree can be exceeded the metallic rod (6) of preparation of soil sample instrument tail-hood diameter and be through in rotating shaft (5), by rotating metallic bar (6), preparation of soil sample instrument (1) can be driven easily to rotate, preparation of soil sample instrument (1) is made to smoothly enter in hard soil sample (7).

2. the Screw-in type soil sample preparation tool according to claim l, it is characterized in that: during described preparation of soil sample tool work, the edge of a knife (3) end face is del, point of a knife is downward, cutter tail in the projection width of vertical direction more than preparation of soil sample tool wall thickness.

3. Screw-in type soil sample preparation tool according to claim 2, it is characterised in that: the triangle top of described edge of a knife end face is downward-sloping from inside to outside in the contact position of preparation of soil sample tool wall.

4. Screw-in type soil sample preparation tool according to claim 3, it is characterised in that: the triangle top of described edge of a knife end face is uniformly distributed hole on the horizontal line of the contact position of preparation of soil sample tool wall, and hole penetrates preparation of soil sample tool wall.