CN212621551U

CN212621551U - Soil sampler

Info

Publication number: CN212621551U
Application number: CN202020425639.5U
Authority: CN
Inventors: 稂涛; 陈仁祥; 熊玮玮; 宋勇; 钟名星; 王太伟; 梁惕平; 马涛
Original assignee: 264 Brigade Of Jiangxi Nuclear Industry Geological Bureau
Current assignee: 264 Brigade Of Jiangxi Nuclear Industry Geological Bureau
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2021-02-26
Anticipated expiration: 2030-03-27

Abstract

The utility model provides a soil sampler, including the sampler barrel that has the cavity, set up the external sample connection of intercommunication on the cavity: a conical ring is arranged in the hollow cavity, one end of the conical ring is connected with the edge of the sampling port, and the height of the conical ring is smaller than that of the hollow cavity; along the direction that the axis of awl ring kept away from the sample connection, the external diameter size of awl ring descends gradually. The utility model provides an among the soil sampler, the setting can play certain fender to the soil sample that gets into the cavity of sampler barrel at the inside taper ring of sampler barrel and cut the effect, avoids the inside soil sample of cavity to fall out from the sample connection, simultaneously, because the taper ring has certain tapering, so can not hinder the inside that the soil sample gets into the cavity through the sample connection from the outside of cavity.

Description

Soil sampler

Technical Field

The utility model belongs to excavate and gather the apparatus field, specifically, relate to a soil sampler.

Background

In the fields of geological exploration, environmental monitoring and field investigation, soil samplers are often used when collecting soil samples. The soil sampler generally comprises a sampling head and a handle. When the soil sampler is used, the sampling head is vertically inserted into soil, then the soil is pressed into the sampling head through actions such as downward extrusion, rotation and the like, and finally the soil sample is extracted out of the soil layer through the upward lifting, rotation and other reaction effects to separate the soil sample, so that the sampling is completed. For dry land soil sampling, sampling can generally be successfully achieved by using the existing soil sampler. However, in soil and water environmental research, it is often necessary to extract soil samples from underwater sediments in rivers, lakes, wetlands, swamps, mud fields, and the like. The soil sample under water has high water content, is fluid and has high sampling difficulty. If a general soil sampler is used for collecting soil with high water content, the sample is easy to separate or run off in the process of extracting the soil sampler from the soil, and quantitative and depth-fixed sampling cannot be carried out, so that the accuracy of research work is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a soil sampling ware to reduce the sample loss in the moist soil sampling process.

According to an aspect of the utility model, a soil sampler is provided, including the sampler barrel that has the cavity, set up the external sample connection of intercommunication on the cavity: a conical ring is arranged in the hollow cavity, one end of the conical ring is connected with the edge of the sampling port, and the height of the conical ring is smaller than that of the hollow cavity; along the direction that the axis of awl ring kept away from the sample connection, the internal diameter size of awl ring descends gradually.

Preferably, the hollow cavity is a straight cylinder, the sampling port is located at the end of the hollow cavity, the sampling port and the conical ring are coaxially arranged, and the joint of the conical ring and the sampling port is of a closed annular structure.

Preferably, the taper of the conical ring does not exceed 10 °.

Preferably, the taper of the conical ring is 5-10 °.

Preferably, the height of the conical ring does not exceed one half of the height of the hollow cavity.

Preferably, the height of the conical ring is one third of the height of the hollow cavity.

Preferably, the cone ring is welded to the rim of the sampling port.

Preferably, the hollow cavity is further provided with a pressure relief opening communicated with the outside, and the pressure relief opening is communicated with the sampling opening in a penetrating manner.

Preferably, the sampling device further comprises a handle, wherein the handle is detachably connected with the sampling tube, and the length direction of the handle is parallel to the axial direction of the hollow cavity.

Preferably, the pressure relief opening and the sampling opening are coaxially arranged, a handle mounting seat is welded at the pressure relief opening, and the handle is in threaded connection with the handle mounting seat.

The utility model provides an among the soil sampler, the setting can play certain fender to the soil sample that gets into the cavity of sampler barrel at the inside taper ring of sampler barrel and cut the effect, avoids the inside soil sample of cavity to fall out from the sample connection, simultaneously, because the taper ring has certain tapering, so can not hinder the inside that the soil sample gets into the cavity through the sample connection from the outside of cavity. Thus: aiming at the soil sample with higher moisture content, compared with the existing soil sampler, the soil sampler provided by the utility model can better keep the soil sample in the sampling process, reduce the loss rate of the soil sample and improve the reliability of the test result of the soil sample; to in the lower soil sample of moisture content, the utility model provides a soil sampler can reach the sample effect equivalent with current soil sampler. That is to say, the utility model provides a soil sampler has higher flexibility, can be adapted to the sampling demand of different soil property. On the other hand, because the hollow cavity is provided with the pressure relief opening, the hollow cavity can not generate positive pressure in the sampling process, and the soil sampling resistance of the sampling cylinder is reduced. Moreover, the setting of pressure release mouth has still improved the convenience of taking out the soil sample from a sampling section of thick bamboo, makes the soil sample leave soil sampler via the pressure release mouth, has avoided the cone ring interception soil sample at this in-process.

Drawings

FIG. 1 is a schematic diagram of the internal structure and dimensions of a sampling tube;

fig. 2 is a perspective view of a soil sampler.

The correspondence of the various components to the numbers in the drawings is as follows: 1. the sampling device comprises a sampling cylinder, 11 parts of a hollow cavity, 12 parts of a sampling port, 13 parts of a conical ring, 14 parts of a pressure relief port, 15 parts of a handle mounting seat and 2 parts of a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, horizontal, vertical … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly. In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Example 1

The soil sampler provided by the embodiment comprises a sampling cylinder 1 and a handle 2. As shown in fig. 1, the main body of the sampling tube 1 is a vertical hollow cylinder structure, a hollow cavity 11 is enclosed by the wall of the sampling tube, two ends of the hollow cavity 11 are openings communicated with the outside, the lower opening of the hollow cavity 11 is used as a sampling port 12, and the upper end of the hollow cavity 11 is used as a pressure relief port 14. The cone ring 13 is arranged in the hollow cavity 11, the cone ring 13 and the hollow cavity 11 are coaxially arranged, the direction of the sampling opening 12 is far away from the central axis of the cone ring 13, the outer diameter and the inner diameter of the cone ring 13 gradually decrease, the lower end opening of the cone ring 13 is welded with the sampling opening 12, and the connection part of the cone ring 13 and the sampling opening 12 is of a closed annular structure. In this embodiment: the height of the sampling tube 1 is 15cm, the thickness of the tube wall is 0.001cm, and the diameter of the bottom surface is 3.6 cm; the height of the conical ring 13 is 5cm, and the taper is 5 degrees. In addition, the sampling tube 1 further comprises a handle mounting seat 15, the handle mounting seat 15 is welded on the edge of the pressure relief opening 14, and a screw hole formed in the handle mounting seat is coaxial with the hollow cavity 11 and located above the pressure relief opening 14. The handle 2 that this embodiment adopted includes the hollow festival pole of multistage, and the effective length of every section festival pole is 1 m, all is carved with the length scale on every section festival pole. The inner surface and the outer surface of the two ends of the section bar are both formed with matched screw threads, and two adjacent section bars in the handle 2 are assembled by screw connection. The outer surface of the pitch rod is formed with threads that also match the threads of the threaded bore of the handle mount 15.

Before the soil sampler is used, the number of the section rods forming the handle 2 is determined according to the required sampling depth, if a plurality of sections of section rods are required, the adjacent section rods are assembled in a threaded mode, then, the section rod positioned at the bottommost part of the handle 2 is installed in the handle installation seat 15 of the sampling cylinder 1, and therefore the soil sampler is assembled.

The user inserts soil sampler perpendicularly and begins to advance the appearance in the soil environment, and soil sample gets into the cavity 11 of sampler barrel 1 along with the vertical tenesmus of soil sample sampler to by the section of thick bamboo wall extrusion of sampler barrel 1. After the sample introduction is finished, the user pulls out the soil sampler upwards, in the process, the soil sample with low water content is retained in the hollow cavity 11 because the soil sample with low water content is compacted by the cylinder wall, the soil sample with high water content (high humidity sample) may have a tendency of moving downwards relative to the hollow cavity 11, the high humidity sample positioned below the conical ring 13 may leak out of the soil sampler, the high humidity sample above the conical ring 13 is blocked by the conical ring 13 and remains in the hollow cavity 11, and, among the high humidity samples left in the hollow cavity 11, the high humidity sample at the bottom (close to the cone ring 13) also plays a role of supporting and supporting the high humidity sample at the top (close to the pressure relief opening 14), so as to prevent the high humidity sample at the top from further moving downwards, and the soil sample collected in the sampling tube 1 is relatively complete after the soil sampler is completely drawn out of the soil environment. And finally, removing the handle 2 from the sampling cylinder 1, inverting the sampling cylinder 1, knocking the cylinder wall of the sampling cylinder 1 or extending the auxiliary part into the hollow cavity 11 of the sampling cylinder 1 from the sampling port 12 or the pressure relief port 14 to poke out the soil sample, and finally leaving the sampling cylinder 1 from the pressure relief port 14 to finish sampling. In conclusion, utilize the soil sampler that this embodiment provided to take a sample, no matter the sample target is the lower soil of water content or the higher soil of water content, can both be held back effectively by sampler barrel 1 at the in-process of sample, and the soil sample of taking out has higher integrality for its detection effect who corresponds has higher reliability.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a soil sampler, is including the sampler barrel that has the cavity, set up the external sample connection of intercommunication on the cavity, its characterized in that: a conical ring is arranged in the hollow cavity, one end of the conical ring is connected with the edge of the sampling port, and the height of the conical ring is smaller than that of the hollow cavity; and the outer diameter of the conical ring gradually decreases along the direction that the central axis of the conical ring is far away from the sampling port.

2. The soil sampler as recited in claim 1, wherein: the cavity is straight tube-shape, the sample connection is located the tip of cavity, the sample connection with the conical ring is coaxial to be set up, the conical ring with the junction of sample connection is closed annular structure.

3. The soil sampler as recited in claim 2, wherein: the taper of the taper ring is not more than 10 degrees.

4. A soil sampler as claimed in claim 3, wherein: the taper of the taper ring is 5-10 degrees.

5. The soil sampler as recited in claim 4, wherein: the height of the conical ring is not more than half of the height of the hollow cavity.

6. The soil sampler as recited in claim 5, wherein: the height of the conical ring is one third of that of the hollow cavity.

7. The soil sampler as recited in claim 6, wherein: the cone ring is welded on the edge of the sampling port.

8. The soil sampler as recited in claim 1, wherein: the hollow cavity is further provided with a pressure relief opening communicated with the outside, and the pressure relief opening is communicated with the sampling opening in a penetrating manner.

9. The soil sampler as recited in claim 8, wherein: still include the handle, the handle with the connection can be dismantled to the sampling tube, and the length direction of handle is on a parallel with the axial of cavity.

10. The soil sampler as recited in claim 9, wherein: the pressure relief opening with the coaxial setting of sample connection, pressure relief opening department welding has the handle mount pad, the handle spiro union in the handle mount pad.