CN103439142A - Stratified sampling device for soil - Google Patents

Abstract

The invention discloses a soil layered sampling device, which belongs to the technical field of agricultural and forestry instruments and is used to solve the problems of the existing soil layered sampling device that the sampling tube cannot be sampled in sections, the sampling is inaccurate, and it is inconvenient to carry. It includes a sampling tube, a sleeve head is arranged at the upper end of the sampling tube, and a ring cutter head is arranged at the lower end of the sampling tube, and the sampling tube is formed by connecting several sections of detachable circular tubes. The detachable feature of the present invention not only makes it easy to carry, but also samples in sections at one time. When the soil layer sample to be analyzed is taken away, the samples in each section of the sampling tube do not interfere with each other, ensuring the integrity of the soil sample data.

Description

A soil layer sampling device

technical field

The invention belongs to the technical field of agricultural and forestry instruments, and in particular relates to a soil layered sampling device.

Background technique

At present, in the fields of planting, soil and water conservation, and infrastructure construction, it is often necessary to sample the soil in layers first, and then analyze the soil samples. There are three common stratified collection methods for soil samples:

One is the soil layer excavation method: first excavate the soil layer to be collected to a layer, then use the soil stratification ring knife to directly collect the required soil samples, and then continue to excavate to the lower layer that needs to be collected, and also use the soil stratification The ring knife collects the required soil samples, and so on.

The other is the electric drilling method: use the soil sampling drill to go deep into the soil layer that needs to be sampled by electric means to realize soil layered sampling.

There is also a gasoline-powered drilling method: compared with the electric drilling method, the electric motor is changed to a gasoline engine to provide power for the sampling drill to achieve soil layered sampling.

However, the above three methods have at least the following defects:

Soil layer excavation does not directly collect the required soil layer. It needs to excavate the surrounding soil and backfill it after excavation.

Although the electric drilling method has less damage to the original soil surface, due to the characteristics of drilling and sampling, it has a greater disturbance to the soil and has a greater impact on the growth of vegetation and the moisture content and bulk density of the collected soil samples. The electric motor must have electricity to work in addition, and the use is limited in the wilderness fields that do not have electricity nearby.

Compared with electric drilling, gasoline-powered drilling is less limited by electric energy. In theory, as long as there is gasoline, you can go to any field to collect soil samples. In fact, the general gasoline engine is not light, and it is not very convenient to carry. When the gasoline engine is used, it will emit a lot of heat, which will also affect the moisture content of the soil sample. If gasoline and engine oil leak, it will also cause some pollution to the soil. .

The invention with authorized notification number CN201331440 discloses a soil sample layered sampling device and a sleeve head. The invention discloses a purely manual soil layered sampling device, which is composed of a sampling tube. The hedging head is provided with a shock-absorbing head on the hedging head. The disadvantage is that the sampling tube is a long tube. If the soil layer to be taken out is located in the middle of the sampling tube, the soil layer at both ends must be removed first. Impact. The 2nd, if will collect deeper soil sample, sampling tube is just relatively long, is not easy to carry. So far, there is no segmented sampling pipe in the prior art.

Contents of the invention

Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a layered soil sampling device for one-time sampling and segmental sampling. The device is easy to carry. Without interference, the integrity and accuracy of the data of each soil layer are guaranteed.

For realizing above-mentioned technical purpose, the technical scheme that the present invention adopts is as follows:

A soil layer sampling device comprises a sampling tube, a collar is arranged at the upper end of the sampling tube, and a ring cutter head is arranged at the lower end of the sampling tube. The sampling pipe is connected by several detachable round pipes.

The soil layered sampling device adopting the above technical scheme is not only convenient to carry, but also only needs to collect the soil once, but can intercept the soil in the sampling tube in sections, and the soil intercepted by each section does not interfere with each other, ensuring the soil data of each section integrity.

Furthermore, the round pipes are connected with threads. In this way, the sampling tube is also more convenient to disassemble.

Furthermore, there is a narrow slit running through the wall of the round tube in the axial direction of the round tube. This narrow slit allows observation of finer soil stratification.

Furthermore, the round tube is engraved with size marks corresponding to its length. The size mark is convenient for the sampling personnel to select the corresponding round tube, and then select some round tubes to combine the required length according to the depth of the soil to be sampled.

Further, the sleeve head is composed of a sleeve hole and a sleeve cap. When in use, put the sleeve on the uppermost round tube of the sampling tube, tap the cover hard, and the sampling tube penetrates into the soil layer; after use, it can be removed, which is convenient and practical, and easy to manufacture.

Compared with the prior art, the present invention is not only convenient to carry, but also ensures the integrity of the collected soil data, and is economical and practical.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a front view of a circular tube;

Figure 3 is a top view of the round tube.

Detailed ways

In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Fig. 1-3, a kind of soil stratification sampling device comprises sampling pipe 1, and the upper end of sampling pipe 1 is provided with sleeve head 2, and the lower end is provided with ring cutter head 3, and described sampling pipe 1 is made of several sections detachable The round pipe 11 is connected, and the round pipe 11 is connected by threads, which is convenient for disassembly. There is a narrow slit 12 in the axial direction of the round pipe 11, which runs through the wall of the round pipe 11. When in use, it can be marked according to the corresponding size engraved on the round pipe 11. According to the depth of the soil to be sampled, some round pipes 11 are selected to combine to obtain the required length; the ring cutter head 3 is connected to the outer thread of the round pipe 11 through an internal thread;

The specific method of use is as follows: first, according to the size mark engraved on the round pipe 11, according to the depth of the soil to be sampled, select some round pipes 11 to combine to obtain the required length, then connect the ring knife 3, and set the sampling pipe 1 vertically. Put on the sleeve head 2 and hit the sleeve head 2 with a hand hammer. It can be observed that when a certain section of round pipe 11 penetrates into the soil, the sampling pipe 1 will reach the required sampling depth. Remove the sleeve head 2 and pull out the sampling pipe 1 vertically. The narrow slit 12 can be cleaned to distinguish each soil layer, the sampling tube 1 is placed horizontally, the round tube 11 is removed, sealed with a plastic wrap immediately, and sent to the laboratory for determination of relevant data.

The invention has the advantages of simple structure, convenient operation and portability, and when the soil layer samples to be analyzed are taken away, the samples in each section of the sampling pipe do not interfere with each other, thereby ensuring the integrity of the data of each soil layer.

A soil layered sampling device provided by the present invention has been described in detail above, and the description of specific embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (5)

1. A soil stratified sampling device, comprising a sampling tube (1), a sleeve (2) is provided at the upper end of the sampling tube (1), and a ring cutter head (3) is provided at the lower end, it is characterized in that the sampling tube ( 1) It is formed by connecting several sections of detachable circular pipes (11). 2. The stratified soil sampling device according to claim 1, characterized in that, the round pipe (11) is connected with threads. 3. The soil stratified sampling device according to claim 2, characterized in that, there is a narrow slit (12) in the axial direction of the circular tube passing through the wall of the circular tube. 4. The soil stratified sampling device according to claim 3, characterized in that, the round tube (11) is engraved with size marks corresponding to its length. 5. The soil stratified sampling device according to claim 1, characterized in that, the sleeve head (2) is composed of a sleeve hole (21) and a sleeve cap (22).

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