CN205642889U

CN205642889U - Undisturbed soil sampler

Info

Publication number: CN205642889U
Application number: CN201620326971.XU
Authority: CN
Inventors: 王仰仁; 娄仲宇; 郭丽娜; 车政; 王越
Original assignee: Tianjin Agricultural University
Current assignee: Tianjin Agricultural University
Priority date: 2016-04-18
Filing date: 2016-04-18
Publication date: 2016-10-12
Anticipated expiration: 2026-04-18

Abstract

The utility model discloses an undisturbed soil sampler is held in the palm to connect gradually and is constituteed by the cutting ring that fetches earth, second top support, second die -pin, second telescopic link, first telescopic link, first die -pin, first top, fetch earth that cutting ring, second top is held in the palm, second die -pin and second telescopic link threaded connection in proper order, the flexible pressure decreasing plate of second pegs graft with first telescopic link pole is nested, threaded connection is in proper order held in the palm on first telescopic link, first die -pin and first top. This configuration operation is nimble simple and convenient, with low costs, the device is firm and can gain original state soil in the field at utmost.

Description

Undisturbed soil soil sampler

Technical field

This utility model relates to soil collecting technical field, particularly relates to a kind of undisturbed soil soil sampler.

Background technology

In agricultural land soil water and soil characteristic survey, the existing way that fetches earth is for utilizing main equipment such as favourable turn etc. Fetch earth or utilize soil sample barrel and hammer to fetch earth.Utilizing main equipment to fetch earth, one is to be not easy to operate with, Two is somewhat expensive, not easy-maintaining；Utilize soil sample barrel hammering method to fetch earth, although equipment is simple, operation relatively Easily, but as easy as rolling off a log disturbed soil structure.

Summary of the invention

For above-mentioned problems of the prior art, this utility model provides a kind of easy and simple to handle, low cost And the soil sampler of undisturbed soil can be at utmost obtained in field.

To this end, the technical solution of the utility model is as follows:

A kind of undisturbed soil soil sampler, including the first jacking being sequentially connected with, the first pressure pin, the first expansion link, Second expansion link, the second jacking and the cutting ring that fetches earth, described first jacking and the second jacking are circular, point It is not enclosed within described first pressure pin and the end of the second jacking and threaded in junction；Described first pressure pin and First expansion link is threaded, and the other end of the first expansion link is nested in the second expansion link and the two nesting The length of section be more than or equal to described in fetch earth cutting ring sample time enter the degree of depth in soil layer；Embedding at the first expansion link It is formed with screw thread in set section and is close in this nesting section and threaded at the second expansion link has one for by second The spiral propeller that expansion link promotes to cutting ring side of fetching earth；The periphery of described second jacking is towards the cutting ring that fetches earth Side extends, and makes to be formed outside the second jacking a groove, described in the cutting ring that fetches earth be placed in this groove；Institute State, on the first expansion link or the second expansion link, a support is installed.

Preferably, between described second expansion link and the second jacking, be also equipped with one second pressure pin, three it Between threaded.

Described spiral propeller is made up of the rocking arm and pushing ring fixing connection, described pushing ring and described first Expansion link is threaded.

Preferably, the outside of described first jacking leans on a pressure reductor, the lateralarea of described pressure reductor Lateralarea more than described first jacking.

In an embodiment of the present utility model, the external diameter of described first jacking and the second jacking is 160mm, thickness is 40mm；The degree of depth of described groove is 20mm, and internal diameter is 140mm.

Preferably, the contact surface of described pushing ring and the second expansion link is also coated with lubricating oil, in case thrust Enter ring rotate time, the second expansion link under the effect of frictional force along with rotation.

Advantage of the present utility model and good effect are as follows:

Undisturbed soil soil sampler of the present utility model, is threaded connection, screw propulsion, scalable design, it is provided that Flexible operation simplicity, low cost, device are firm and can at utmost obtain the soil sampler of undisturbed soil in field.

Accompanying drawing explanation

Fig. 1 is the profile of a kind of embodiment of undisturbed soil soil sampler of the present utility model.

Fig. 2 is the profile of the another kind of embodiment of undisturbed soil soil sampler of the present utility model.

Wherein:

1, pressure reductor the 2, first jacking

3, first pressure pin the 4, first expansion link

5, spiral propeller the 6, second expansion link

7, second pressure pin the 8, second jacking

9, fetch earth cutting ring 10, support

Detailed description of the invention

Being further described this utility model below by detailed description of the invention, implementation below is simply retouched The property stated, be not determinate, it is impossible to limit protection domain of the present utility model with this.

As depicted in figs. 1 and 2, undisturbed soil soil sampler of the present utility model includes: the first top being sequentially connected with Torr the 2, first pressure pin the 3, first expansion link the 4, second expansion link the 6, second jacking 8 and cutting ring 9 that fetches earth.

First jacking 2 and the second jacking 8 are circular, are respectively fitted over the first pressure pin 3 and the second jacking 8 End and threaded in junction.First pressure pin 3 and the first expansion link 4 are threaded, and first stretches In the other end of bar 4 is nested in the second expansion link 6 and the two the length of nested section is more than or equal to fetching earth cutting ring 9 The degree of depth in soil layer is entered when fetching earth.The nested section of the first expansion link 4 is formed with screw thread and in this nesting Be close in section at the second expansion link 6 threaded have one for by the second expansion link 6 to cutting ring 9 side of fetching earth The spiral propeller 5 promoted.The periphery of the second jacking 8 extends towards cutting ring 9 side of fetching earth, and makes the second jacking Forming a groove outside 8, the cutting ring 9 that fetches earth is placed on the interior round sides with groove of this groove and sticks together. Being provided with a support 10 on the first expansion link 4 or the second expansion link 6, support 10 has two expandable Two supporting legs, during use, are strutted, are supported soil sampler by lower limb.Support 10 comprises two lower limbs, two Angle between lower limb can change in the range of 30 °～120 °.It addition, support 10 can stretch relative to first Bar 4 or the second expansion link 6 move.

When needed, between the second expansion link 6 and the second jacking 8, second pressure pin 7 can be installed, to increase The entire length of soil sampler, the most threaded between three.

Spiral propeller 5 is made up of rocking arm and the pushing ring of fixing connection, described pushing ring and the first expansion link 4 Threaded.

Preferably, the outside of described first jacking 2 leans on a pressure reductor 1, the side of described pressure reductor 1 Face area is more than the lateralarea of described first jacking 2.So it is possible to prevent when fetching earth, owing to spiral pushes away Enter the effect of device and make the first jacking 2 embed in the soil body.

In an embodiment of the present utility model, the length of the first expansion link 4 and the second expansion link 6 is 450mm.The length of first pressure pin the 3, second pressure pin 7 is 300mm.First jacking 2 and the second jacking 8 External diameter be 160mm, thickness is 40mm；The degree of depth of described groove is 20mm, and internal diameter is 140mm.

During for preventing pushing ring from rotating, the second expansion link 6 and then rotates under the effect of frictional force, Ke Yi Lubricating oil is coated on the contact surface of pushing ring and the second expansion link 6.

During use, rotating screw propeller 5, by the axial thrust produced in its elongation process, promote second Expansion link the 6, second pressure pin 7 moves right in (direction in figure), promotes and is connected to taking of the second jacking 8 end Soil cutting ring 9 is slowly in soil, until reaching the thickness that fetches earth (100mm thickness) of requirement.Before fetching earth Lubricant is coated, it is possible to reduce friction therebetween to the contact surface of spiral propeller and the second expansion link 6 Power, thus reduce the disturbance to soil produced owing to the second expansion link 6 rotates, farthest obtain Undisturbed soil.

Claims

1. a undisturbed soil soil sampler, it is characterized in that: include the first jacking (2), the first pressure pin (3), the first expansion link (4), the second expansion link (6), the second jacking (8) and the cutting ring that fetches earth (9) being sequentially connected with

Described first jacking (2) and the second jacking (8) are circular, are respectively fitted over described first pressure pin (3) and the end of the second jacking (8) and threaded in junction；

Described first pressure pin (3) and the first expansion link (4) are threaded, the other end of the first expansion link (4) is nested in the second expansion link (6) and the two the length of nested section be more than or equal to described in fetch earth when cutting ring (9) fetches earth and enter the degree of depth in soil layer；The nested section of the first expansion link (4) is formed screw thread and in this nesting section, is close to that the second expansion link (6) place is threaded has one for the spiral propeller (5) promoted to the cutting ring that fetches earth (9) side by the second expansion link (6)；

The periphery of described second jacking (8) extends towards the cutting ring that fetches earth (9) side, makes the second jacking (8) outside form a groove, described in the cutting ring (9) that fetches earth be placed in this groove；

Described first expansion link (4) or the second expansion link (6) are provided with a support (10).

2. undisturbed soil soil sampler as claimed in claim 1, it is characterised in that: it is also equipped with one second pressure pin (7) between described second expansion link (6) and the second jacking (8), threaded between three.

3. undisturbed soil soil sampler as claimed in claim 1 or 2, it is characterised in that: described spiral propeller (5) is made up of rocking arm and the pushing ring of fixing connection, and described pushing ring is threadeded with described first expansion link (4).

4. undisturbed soil soil sampler as claimed in claim 3, it is characterized in that: the outside of described first jacking (2) leans on a pressure reductor (1), the lateralarea of described pressure reductor (1) is more than the lateralarea of described first jacking (2).

5. undisturbed soil soil sampler as claimed in claim 4, it is characterised in that: the external diameter of described first jacking (2) and the second jacking (8) is 160mm, and thickness is 40mm.

6. undisturbed soil soil sampler as claimed in claim 5, it is characterised in that: the degree of depth of described second jacking (8) upper groove is 20mm, and internal diameter is 140mm.

7. undisturbed soil soil sampler as claimed in claim 4, it is characterised in that: it is also coated with lubricating oil on the contact surface of described pushing ring and the second expansion link (6).