CN113720638A

CN113720638A - Original state soil collection system that can keep soil and plant roots integrity

Info

Publication number: CN113720638A
Application number: CN202111014570.2A
Authority: CN
Inventors: 杨振奇; 郭建英; 徐冰; 刘艳萍; 邢恩德; 郑颖; 唐国栋; 刘静; 张铁钢; 张欣
Original assignee: Institute of Water Resources for Pasteral Area Ministry of Water Resources PRC
Current assignee: Institute of Water Resources for Pasteral Area Ministry of Water Resources PRC
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2021-11-30
Also published as: NL2031998B1; ZA202203484B; NL2031998A

Abstract

The invention discloses an undisturbed soil collection device capable of keeping integrity of soil and a plant root system, which belongs to the field of undisturbed soil collection and comprises a collection cup, wherein the collection cup is of a circular tubular structure, a hidden type cutter head is installed at the bottom of the collection cup, a plurality of blades are rotatably installed in the hidden type cutter head, a linkage rod is arranged in the collection cup in a sliding mode, the top end of the linkage rod extends to the upper side of the top of the collection cup, and the bottom end of the linkage rod extends into the hidden type cutter head and is fixed with one side of a cutter handle of each blade. According to the invention, the rotatable blade is arranged, and after the collection cup is pressed into the soil body, the plant root system can be cut by using the rotatable blade, so that a soil sample is taken out.

Description

Original state soil collection system that can keep soil and plant roots integrity

Technical Field

The invention relates to the technical field of undisturbed soil collection, in particular to an undisturbed soil collection device capable of keeping integrity of soil and plant roots.

Background

Soil erosion refers to the whole process of soil, soil body or other ground composition substances being destroyed, degraded, transported and deposited under the action of precipitation, runoff and wind power erosion. The environmental problems of soil erosion caused water and soil loss, land productivity degradation and the like are one of global problems to be solved urgently in the current international society, particularly in a sandy and coarse sand area of a yellow river basin in China, natural vegetation in the area is rare, rainfall is in short, the rainfall form is mainly heavy rain, and the land degradation problem caused by soil erosion seriously influences the sustainable development of the local agriculture and animal husbandry and the social and economic stability. The research of the soil erosion mechanism is always the core problem of water and sand regulation and ecological environment restoration in the yellow river sandy coarse sand area and is also the premise of scientific decision of the artificial vegetation allocation scheme. By collecting the vegetation-soil-root system composite structure, the development of the soil erosion test is the basis for the development of the work of erosion process monitoring, erosion model verification and revision, erosion strength and hazard assessment, erosion control measure effect evaluation and the like.

The undisturbed soil is a soil sample with a soil original structure reserved in the sampling process, and has an important effect on developing soil erosion tests, soil aggregate tests, soil nutrient analysis and the like. Soil sampling device refers to a tool for obtaining a soil sample. The soil sampler is mainly used for collecting deep soil samples, a sampling method mostly adopts a manual or mechanical power rotating handle to damage a soil structure in a rotary drilling manner, but due to the adoption of a rotating manner, when a root system in soil is cut, if the root system cannot be cut off immediately, the root system can be dragged, so that the original state structure of the soil is damaged; on the other hand, although the existing soil sampling device in the market is widely used for soil analysis sampling and soil test sampling, for example, through search, chinese patent No. CN 101750234 a discloses a handheld undisturbed soil column collecting device, which comprises a drill barrel, a base, a connecting seat and a drill rod, wherein the connecting seat and the base are respectively installed at two ends of the drill barrel, and the drill rod is connected with the connecting seat.

However, in some experiments, the requirement on the structure of the root system in undisturbed soil is high, the undisturbed structure of vegetation, surface soil and the root system needs to be preserved at the same time, and the traditional rotary cylindrical soil sampling device cannot meet the requirement, so that the invention provides the undisturbed soil collecting device capable of keeping the integrity of soil and the root system of the plant.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an undisturbed soil collecting device capable of keeping the integrity of soil and plant roots.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a can keep original state soil collection system of soil and plant roots integrity, includes gathers the cup, it is pipe-shaped structure to gather the cup, the concealed blade disc is installed to the bottom of gathering the cup, a plurality of blades of concealed blade disc internal rotation installation, it is equipped with the gangbar to slide in the cup to gather, the top of gangbar extends to the top upside of gathering the cup, the bottom of gangbar extends to in the concealed blade disc and fixed with handle of a knife one side of blade.

Furthermore, a sliding clamping groove is vertically formed in the collection cup, the sliding clamping groove is also formed in the upper side of the hidden cutter disc, and the linkage rod is slidably mounted with the collection cup and the hidden cutter disc through the sliding clamping groove.

Further, the concealed cutter head is circular, and a cavity matched with the blades is formed in the concealed cutter head.

Furthermore, the knife handle of the blade is rotatably installed with the hidden type knife disc through a rotating shaft.

Furthermore, three blades are arranged in the concealed cutter head in a rotating mode.

Furthermore, the cross section of the sliding clamping groove is of an arc-shaped structure, and the circle center of the arc-shaped structure is located on the axis of the rotating shaft.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the rotatable blade is arranged, and after the collection cup is pressed into the soil body, the plant root system can be cut by using the rotatable blade, so that a soil sample is taken out.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

FIG. 1 is a schematic view of an entire structure of an undisturbed soil collection device capable of maintaining integrity of soil and plant roots according to the present invention;

FIG. 2 is a structural sectional view of the concealed cutterhead of the present invention;

FIG. 3 is a top view of the concealed cutterhead of the present invention;

FIG. 4 is a bottom view of the concealed cutterhead of the present invention;

FIG. 5 is a simulation diagram of the present invention during actual sampling.

In the figure: the device comprises a collecting cup 1, a concealed cutter head 2, a sliding clamping groove 3, a linkage rod 4, blades 5, a rotating shaft 6 and plants 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-5, an undisturbed soil collection device capable of maintaining integrity of soil and plant roots comprises a collection cup 1, wherein the collection cup 1 is of a circular tubular structure, a hidden cutter disc 2 is installed at the bottom of the collection cup 1, a plurality of blades 5 are rotatably installed in the hidden cutter disc 2, and as shown in the figure, three blades 5 are rotatably installed in the hidden cutter disc 2. The hidden cutter head 2 is in a circular ring shape, and a cavity matched with the blade 5 is formed in the hidden cutter head 2.

A linkage rod 4 is arranged in the collection cup 1 in a sliding mode, the top end of the linkage rod 4 extends to the upper side of the top of the collection cup 1, and the bottom end of the linkage rod 4 extends into the hidden type cutter head 2 and is fixed to one side of the cutter handle of the blade 5.

A sliding clamping groove 3 is vertically formed in the collection cup 1, the sliding clamping groove 3 is also formed in the upper side of the hidden type cutter head 2, and the linkage rod 4 is slidably mounted with the collection cup 1 and the hidden type cutter head 2 through the sliding clamping groove 3 respectively. The handle of the blade 5 is rotatably arranged with the concealed cutter head 2 through a rotating shaft 6. The cross section of the sliding clamping groove 3 is of an arc-shaped structure, and the circle center of the arc-shaped structure is located on the axis of the rotating shaft 6.

The working principle and the using process of the invention are as follows:

as shown in fig. 5, the collecting cup 1 penetrates through a plant 7 and is pressed into a soil body, the linkage rod 4 is controlled to slide in the sliding clamping groove 3 after a certain depth is reached, and the blades 5 are driven to rotate by a certain angle by the cooperation of the rotating shaft 6, so that the soil and the plant root system are cut by the blades 5, as shown in fig. 3, the positions of the three blades 5 are adjusted, the blades 5 are converged, the bottom baffle can be used as a function, and the collecting cup 1 is lifted to take out the plant 7, the plant root system and the soil together.

The invention has the advantages of keeping the integrity of the soil body structure, accurate test result, convenient sampling, simple and reasonable structure, convenient processing and manufacturing, and the like.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a can keep original state soil collection system of soil and plant roots integrity, includes gathers cup (1), its characterized in that, it is pipe-shaped structure to gather cup (1), concealed blade disc (2) are installed to the bottom of gathering cup (1), a plurality of blades of rotation installation (5) in concealed blade disc (2), it is equipped with gangbar (4) to slide in cup (1) to gather, the top of gangbar (4) extends to the top upside of gathering cup (1), the bottom of gangbar (4) extends to in concealed blade disc (2) and is fixed with handle of a knife one side of blade (5).

2. The undisturbed soil collection device capable of maintaining integrity of soil and plant roots according to claim 1, wherein a sliding clamping groove (3) is vertically formed in the collection cup (1), a sliding clamping groove (3) is also formed in the upper side of the concealed cutter head (2), and the linkage rod (4) is slidably mounted with the collection cup (1) and the concealed cutter head (2) through the sliding clamping groove (3).

3. The undisturbed soil collection device capable of maintaining the integrity of soil and plant roots according to claim 1, wherein the concealed cutterhead (2) is circular, and a cavity matched with the blades (5) is formed inside the concealed cutterhead (2).

4. The undisturbed soil collection device capable of maintaining the integrity of soil and plant roots according to any one of claims 1-3 wherein the handle of the blade (5) is rotatably mounted with the concealed cutterhead (2) through a rotating shaft (6).

5. The undisturbed soil collection device for maintaining the integrity of soil and plant roots as claimed in claim 4 wherein the concealed cutterhead (2) has three blades (5) rotating therein.

6. The undisturbed soil collection device capable of maintaining the integrity of soil and plant roots as claimed in claim 4, wherein the cross section of the sliding clamping groove (3) is of an arc-shaped structure, and the center of the arc-shaped structure is located on the axis of the rotating shaft (6).