CN214621783U

CN214621783U - Cut-off type vacuum soil sampler

Info

Publication number: CN214621783U
Application number: CN202120240501.2U
Authority: CN
Inventors: 张哲茵; 衣鹏; 陈鹏
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-11-05
Anticipated expiration: 2031-01-28

Abstract

The utility model discloses a cut-off type vacuum soil sampler, including the sampling bucket, the sampling bucket internalization is provided with the piston, is connected with the piston post on the piston, and piston post top is provided with the piston handle, and the sampling bucket bottom is connected with annular and cuts native sword, installs the steel wire on the diameter of annular surely native sword. This vacuum geotome can be through the accurate sample of scale, and it is higher to utilize the steel wire cutting to make the precision of sample, can realize the layering sample during the use, does not harm the soil sample during the sample, device simple structure, convenient to use, low cost, it is convenient to transport.

Description

Cut-off type vacuum soil sampler

Technical Field

The utility model relates to a geotome, more specifically relates to a cut-off type vacuum geotome.

Background

In order to understand the properties of the soil base and to obtain the physical and mechanical performance indexes of the foundation soil in engineering geological exploration and reconnaissance work, the original sample soil needs to be taken at a deeper position, and the soil taking equipment is the soil sampler. The general soil sampler adopts the principle of vacuum negative pressure, a piston is added into a soil sampling barrel, the soil in the barrel is sucked during soil sampling, and then the soil sample is taken out or tilted through a violence means, so that the soil is inevitably fallen off in the sampling process, the depth of the soil sample is inaccurate, and the measuring result is influenced.

Disclosure of Invention

Utility model purpose: the utility model aims at providing a do not harm the soil sample, can dig the soil of getting accurate thickness and degree of depth, the cut-off type vacuum geotome of borrowing.

The technical scheme is as follows: cut-off type vacuum geotome, including the sampling bucket, the sampling bucket internalization is provided with the piston, is connected with the piston post on the piston, the piston post top is provided with the piston handle, and the sampling bucket bottom is connected with the annular sword of cutting soil, installs the steel wire on the annular diameter of cutting the sword of soil.

Wherein, the piston diameter is unanimous with the sampling bucket internal diameter, open at the sampling bucket top has the through-hole, the piston post passes the through-hole and connects the inside piston of sampling bucket and outside piston handle, be provided with the scale on the piston post, be provided with the handle on the sampling bucket perpendicularly, the handle includes the handle post, connect through the bracing piece between the handle post, it has the sliding tray to open on the handle post, piston handle both ends are provided with the stopper, stopper movably card is in the sliding tray, the sampling bucket lower part outside is provided with the screw thread, the sampling bucket passes through the screw thread and cuts native sword active link, the piston is rubber material.

The working principle is as follows: the utility model discloses during the borrowing, the piston can be embodied on the relative position of piston post and borrowing bucket upper surface to the thickness of the distance of steel wire for the soil of getting, and can read out through setting up the scale, and the steel wire of blade can level downcut the soil sample that required was got, and the soil that is cut by the steel wire when downcutting can be compacted by the piston, does not have the clearance between piston and the soil sample, can form negative pressure zone, adsorbs the soil sample of getting

Has the advantages that: compared with the prior art, the utility model, it is showing the advantage and is: 1. the scale can be used for sampling accurately, and the steel wire cutting is used for improving the sampling accuracy; 2. when in use, layered sampling can be realized, and the soil sample is not damaged during sampling; 3. the device has the advantages of simple structure, convenient use, low cost and convenient transportation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the grip structure;

FIG. 3 is a top view of the grip;

FIG. 4 is a schematic view of a circular soil cutting blade configuration;

FIG. 5 is a top view of the annular soil cutting blade;

FIG. 6 is a schematic view of the construction of the soil sampling barrel;

fig. 7 is a top view of the soil sampling bucket.

Detailed Description

As shown in fig. 1, the cut-off type vacuum soil sampler comprises a sampling barrel 4, a rubber piston 3 is movably arranged in the sampling barrel 4, the diameter of the piston 3 is consistent with the inner diameter of the sampling barrel 4, a piston column 5 is connected on the piston 3, a scale 10 is arranged on the piston column 5, a piston handle 8 is arranged on the top of the piston column 5, as shown in fig. 6 and 7, a through hole is arranged on the top of the sampling barrel 4, the piston column 5 passes through the through hole to connect the piston 3 inside the sampling barrel 4 and the piston handle 8 outside the sampling barrel 4, a thread is arranged on the outer side of the lower part of the sampling barrel 4, an annular soil cutting blade 2 is connected on the bottom of the sampling barrel 4 through the thread, as shown in fig. 4 and 5, a steel wire 1 is arranged on one diameter of the annular soil cutting blade 2, a handle 6 is vertically arranged on the sampling barrel 4, as shown in fig. 2 and 3, the handle 6 comprises a handle column 61, the handle columns 61 are connected through a support rod 62, a sliding groove 7 is arranged on the column 61, the two ends of the piston handle 8 are provided with limit blocks 9, and the limit blocks 9 can be movably clamped in the sliding grooves 7.

When in use: the piston handle 8 is pressed down, so that the piston 3 is attached to the steel wire 1 of the annular soil cutting blade 2, and the reading X at the intersection line of the scale 10 and the upper surface of the sampling barrel 4 is recorded₁(ii) a Adding the initial reading to the thickness h of the soil to be taken to calculate the reading X during taking the soil₂＝X₁+ h, vertically downward pressing the soil sampler, and simultaneously observing the scale to reach X₂Stopping pressing; grasping the handle 6, rotating the soil sampler 360 degrees along the screwing direction of the thread 11, cutting the sampled soil sample by the steel wire 1:

(1) if only one layer of soil is taken, the soil taking device is integrally pulled out, the thread 11 is unscrewed, the annular soil cutting blade 2 is taken off, the piston handle 8 is pushed, the taken soil is integrally pushed out, and sampling is finished.

(2) If layering is got soil, then unscrew screw thread 11 earlier, extract sampling bucket 4 and handle 6 part, at this moment, annular surely soil sword 2 still stays in soil, the soil sample can directly be transported to other places because the negative pressure is adsorbed in sampling bucket 4, or promote piston handle 8, push out the soil of getting wholly, then revolve sampling bucket 4 and handle 6 part back on annular surely soil sword 2, push down piston handle 8 again for piston 3 pastes to annular surely soil sword 2's steel wire 1, note down reading X of scale 10 and sampling bucket 4 upper surface intersection line department this moment₁(ii) a Adding the initial reading to the thickness h of the soil to be taken to calculate the reading X during taking the soil₂＝X₁+ h, vertically downward pressing the soil sampler, and simultaneously observing the scale to reach X₂Stopping pressing; the grip 6 is grasped, the soil sampler is rotated 360 degrees in the screwing direction of the thread 11, the sampled soil sample is cut by the steel wire 1, and the process is repeated for several times until all the samples are sampled.

Claims

1. The utility model provides a cut-off type vacuum soil sampler, its characterized in that, includes sampling bucket (4), sampling bucket (4) internalization is provided with piston (3), be connected with piston post (5) on piston (3), piston post (5) top is provided with piston handle (8), sampling bucket (4) bottom is connected with annular soil cutting edge (2), install steel wire (1) on the diameter of annular soil cutting edge (2).

2. The cut-off vacuum geotome of claim 1 wherein the piston (3) diameter corresponds to the sampling bucket (4) inner diameter.

3. The cutting-off type vacuum soil sampler according to claim 1, wherein the top of the sampling barrel (4) is provided with a through hole, and the piston column (5) passes through the through hole to connect the piston (3) inside the sampling barrel (4) and the external piston handle (8).

4. The cut-off vacuum geotome of claim 1 wherein the piston post (5) is provided with a scale (10).

5. The cut-off vacuum soil sampler according to claim 1, wherein the sampling barrel (4) is vertically provided with a handle (6), the handle (6) comprises handle posts (61), and the handle posts (61) are connected through a support rod (62).

6. The cutting-off type vacuum soil sampler according to claim 5, wherein the handle column (61) is provided with a sliding groove (7), two ends of the piston handle (8) are provided with limit blocks (9), and the limit blocks (9) are movably clamped in the sliding groove (7).

7. The cutting-off type vacuum soil sampler according to claim 1, wherein the sampling barrel (4) is provided with screw threads on the outer side of the lower part thereof, and the sampling barrel (4) is movably connected with the soil cutting blade (2) through the screw threads.

8. The cut-off vacuum geotome of claim 1 wherein the piston (3) is a rubber material.