CN204085932U - A kind of soil sample drill bit - Google Patents

Abstract

The utility model relates to the field of soil research auxiliary equipment, and discloses a soil sampling drill bit. It includes a drill body, a connecting rod arranged on the top of the drill body, a groove arranged on the side wall of the drill body, the drill body is a cylinder with an open bottom, and ribs are provided on the inner wall of the drill body. The utility model sets ribs on the inner wall of the drill body, which increases the resistance when the sampled soil falls, and can effectively prevent the sampled soil from falling from the drill bit; the setting of the ribs helps to enhance the strength of the drill bit body, and is suitable for relatively hard soil Sampling operation; the utility model sets a vertically downward cutting edge at the bottom opening of the drill body, which is beneficial to the cutting of the soil by the drill bit and improves the speed of soil extraction. The utility model has a simple structure, is applicable to various types of soils, does not need to carry multiple types of drill bits, and reduces the burden of field operators.

Description

soil sampling drill

technical field

The utility model relates to the field of soil research auxiliary equipment, in particular to a soil sampling drill capable of preventing the sampling soil from falling.

Background technique

Soil science research is a very important science in agriculture, grazing, forestry, environmental protection and other disciplines. Through soil research, it is helpful for researchers to understand the nutrient composition and physical and chemical properties of the tested soil, and then take corresponding technical measures or management measures to restore soil health or reflect certain scientific issues.

Soil sampler, also known as soil auger, is a tool widely used to collect soil samples at present. The use of such tools to measure soil physical and chemical properties, plant underground biomass, etc., reduces the time and effort of traditional digging tools for harvesting soil clods. , the destruction of soil and vegetation and the limitation of the number of sampling repetitions, and the resulting soil core drilling method has the advantages of rapid sampling, simplicity, ease, and large coverage compared with the original tool digging soil block harvesting method. Better method for belowground biomass of fine roots.

At present, the drill bits of soil/root samplers are mainly divided into heart-shaped soil sampling drill bits and cylindrical soil drill bits. Different soil samplers are used according to different soil types. The heart-shaped soil sampling drill bit is mainly used to take clay and loam soil, and the barrel-shaped soil sampling drill bit is mainly used to take loam soil, peat soil and sandy soil. Due to the low viscosity of sandy soil and loamy soil, it is easy to fall out of the drill bit. Generally, it is not easy to take sandy soil and loamy soil without using a cylindrical soil sampler; when sampling soil with a heart-shaped soil sampler, soil with low moisture content is easy to fall out of the drill bit. , and the design of the heart-shaped drill bit is not conducive to the sampling of different soil layers, such as sampling soil at 20CM, due to the irregular shape of the drill bit, accurate quantitative sampling cannot be performed. Therefore, cylindrical sampling drill bits are often used in soil quantitative sampling at present.

In order to prevent the sampled soil from falling out of the barrel of the drill bit, the edge of the bit is often bent inwardly of the inner barrel to prevent the sampled soil from falling out of the bit when the sampler is lifted after sampling; however, the curved bit edge increases the The resistance of cutting into the soil affects the working efficiency.

When working in the field, the staff often need to carry different drill bits to sample different soils, which brings a lot of inconvenience to the field work.

Utility model content

The purpose of the utility model is to provide a soil sampling drill bit to solve the problem that the sampled soil is easy to fall from the drill bit when the existing soil sampler is lifted after sampling.

In order to solve the problems of the technologies described above, the technical solution adopted by the utility model is:

A soil sampling drill bit, which comprises a drill body, a connecting rod arranged on the top of the drill body, a groove arranged on the side wall of the drill body, the drill body is a cylinder with an open bottom, and the inner wall of the drill body is provided with There are tendons.

As a further improvement of the utility model, the rib is a helical metal strip.

As a further improvement of the utility model, the bottom opening of the drill body is provided with a vertically downward cutting edge.

The utility model sets ribs on the inner wall of the drill body, which increases the resistance when the soil in the drill bit falls, and can effectively prevent the sampling soil from falling from the drill bit; the setting of ribs helps to enhance the strength of the drill body, and is suitable for hard Soil sampling operation; the utility model sets a vertically downward cutting edge at the bottom opening of the drill body, which is beneficial to the cutting of the soil by the drill bit and improves the speed of soil extraction. The utility model has a simple structure, is applicable to various types of soils, does not need to carry multiple types of drill bits, and reduces the burden of field workers.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Among the figure: 1, drill bit body, 2, connecting rod, 3, groove, 4, cutting edge, 5, rib.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

A kind of soil sampling drill bit as shown in Figure 1, it comprises drill bit body 1, the connecting rod 2 that is arranged on the top of drill bit body 1, the groove 3 that is arranged on the side wall of drill bit body 1, and drill bit body 1 is the cylinder of bottom opening Body, the inner wall of the drill body 1 is provided with helical ribs 5, and the bottom opening of the drill body 1 is provided with a vertically downward cutting edge 4.

The rib 5 is made of metal.

During field soil extraction operations, the utility model is installed on the drill pipe through the connecting rod 2, and the downward force of rotation is applied to the drill bit body 1, and the cutting edge 4 cuts into the soil. After the soil is sampled according to the operation requirements, the drill bit is lifted. Body 1, the sampled soil is lifted together with the drill bit body 1, leaving the original soil layer, the sampled soil falls downward under the action of gravity, and the rib 5 decomposes the vertical downward gravity borne by the sampled soil, thereby preventing the sampled soil from The drill bit body 1 falls; the soil sample taken out can be easily taken out from the drill bit body 1 under the action of the groove 3 .

The utility model has simple structure and is convenient to carry, and is suitable for various types of soil properties and quantitative sampling operations, and the sampling speed is fast. the

Claims (3)

1. a soil sample drill bit, it comprises drill body (1), be arranged on the connecting link (2) on drill body (1) top, the groove (3) be arranged on drill body (1) sidewall, it is characterized in that: the right cylinder that described drill body (1) is bottom end opening, the inwall of described drill body (1) is provided with muscle (5).

2. a kind of soil sample drill bit according to claim 1, is characterized in that: described muscle (5) is spiral helicine bonding jumper.

3. a kind of soil sample drill bit according to claim 1 and 2, is characterized in that: described drill body (1) bottom end opening place is provided with cutting edge (4) straight down.