Search

CN-224231570-U - Soil saturation water conductivity measuring device

CN224231570UCN 224231570 UCN224231570 UCN 224231570UCN-224231570-U

Abstract

The utility model discloses a soil saturation water conductivity measuring device which is applied to undisturbed soil samples, wherein the soil saturation water conductivity measuring device comprises a base, a cutter ring, a pipe fitting and a connecting piece, wherein the cutter ring is positioned on the base, the cutter ring is used for containing undisturbed soil samples, the pipe fitting is arranged at the top of the cutter ring, the pipe fitting is of a transparent structure and is used for limiting a first space, the first space is used for containing liquid, the connecting piece is positioned between the cutter ring and the pipe fitting, and the inside of the cutter ring is communicated with the first space through the connecting piece in an assembled state. According to the utility model, through the mutual combination of the cutting ring, the pipe fitting and the connecting piece, the water guiding performance of the undisturbed soil sample can be accurately measured, the authenticity and the reliability of a measuring result are ensured, meanwhile, the water flow condition can be observed in real time through the transparent pipe fitting, the measuring precision is further improved, and the device has the advantages of compact structure, simplicity in operation and low cost, and is convenient for subsequent operation and research.

Inventors

  • WU LIN
  • Min Leilei
  • LIU MEIYING
  • WANG PANMENG
  • LI HUAIHUI
  • SHEN YANJUN

Assignees

  • 中国科学院遗传与发育生物学研究所农业资源研究中心

Dates

Publication Date
20260512
Application Date
20250522

Claims (8)

  1. 1. A soil saturation conductivity measurement device, characterized in that it is applied to undisturbed soil sample, comprising: the base is provided with a bracket on the top; the cutting ring is positioned on the bracket and used for containing the undisturbed soil sample; the pipe fitting is arranged at the top of the cutting ring and is of a transparent structure, and is used for limiting a first space for containing liquid; the connecting piece is positioned between the ring cutter and the pipe fitting; in the assembled state, the interior of the cutting ring is communicated with the first space through the connecting piece.
  2. 2. The soil saturation conductivity measuring apparatus according to claim 1, wherein the connecting member is constituted by an upper connecting portion and a lower connecting portion, and a length dimension of the upper connecting portion is smaller than a length dimension of the lower connecting portion in a width direction of the connecting member.
  3. 3. The soil saturation conductivity measuring device according to claim 2, wherein the upper connecting portion and the lower connecting portion are each of a cylindrical structure; one end of the pipe fitting is sleeved on the upper connecting part, and the lower connecting part is detachably connected with the cutting ring.
  4. 4. The soil saturation conductivity measuring device according to claim 2, wherein a seal assembly is provided on the connector, the seal assembly being located at an end of the upper connector, and/or the seal assembly being located at an end of the lower connector.
  5. 5. The device for measuring the saturated water conductivity of soil according to claim 1, further comprising a balancing weight, wherein the balancing weight is sleeved on the pipe fitting; Along the height direction of the pipe fitting, scale marks are arranged on the side wall of the pipe fitting at intervals.
  6. 6. The device for measuring the saturated water conductivity of soil according to claim 5, wherein the weight is in a circular ring structure, and the weight is adsorbed to the connecting piece.
  7. 7. The soil saturation conductivity measurement apparatus of claim 1, wherein the edge of the base has a raised structure extending toward a side facing away from the base such that a predetermined angle is provided between the base and the raised structure.
  8. 8. The apparatus according to claim 1, further comprising an image pickup device, an optical axis direction of the image pickup device being directed toward the pipe, the image pickup device being configured to photograph a height of the liquid in the first space.

Description

Soil saturation water conductivity measuring device Technical Field The utility model relates to the technical field of soil moisture and physical property measurement, in particular to a device for measuring saturated water conductivity of soil. Background The saturated water conductivity of the soil is an important parameter in soil physics, determines the penetration speed of water in the soil, is usually measured when the soil moisture reaches a saturated state, and has important reference value for farmland irrigation planning, groundwater replenishment evaluation, ecological restoration strategy formulation and soil hydrologic model parameterization. In the related art, the saturated water conductivity of soil is affected by various factors including the particle size of the soil, the pore structure of the soil, the organic matter content of the soil, the compaction degree of the soil, etc., so that the saturated water conductivity of the soil is required to be measured by using a related method, and common methods are a constant head method and a water fall method. Wherein, the method of reducing water head is more common and simple in measuring the saturated water conductivity of the medium-low permeability soil under laboratory conditions. However, in the existing soil saturated water conductivity measuring apparatus, the price is high (for example, a four-point saturated water conductivity meter manufactured in japan), and furthermore, during the measuring process, a researcher needs to continuously and repeatedly conduct manual reading and recording, which is time-consuming and laborious and is susceptible to human negligence or reading deviation. Disclosure of utility model The utility model provides a soil saturated water conductivity measuring device, which aims to solve the problems that in the existing soil saturated water conductivity measuring device, the price is high, researchers need to continuously and repeatedly conduct manual reading and recording in the measuring process, time and labor are wasted, and the influence of human negligence or reading deviation is easy to influence, and the technical scheme adopted is as follows: the application provides a soil saturation water conductivity measuring device, which is applied to undisturbed soil samples and comprises: the base is provided with a bracket on the top; the cutting ring is positioned on the bracket and used for containing the undisturbed soil sample; the pipe fitting is arranged at the top of the cutting ring and is of a transparent structure, and is used for limiting a first space for containing liquid; the connecting piece is positioned between the ring cutter and the pipe fitting; in the assembled state, the interior of the cutting ring is communicated with the first space through the connecting piece. In some embodiments, the connector is comprised of an upper connector and a lower connector, the length dimension of the upper connector being smaller than the length dimension of the lower connector in the width direction of the connector. In some embodiments, the upper connection and the lower connection are each of cylindrical configuration; one end of the pipe fitting is sleeved on the upper connecting part, and the lower connecting part is detachably connected with the cutting ring. In some embodiments, the connector has a seal assembly disposed thereon at an end of the upper connector and/or at an end of the lower connector. In some embodiments, the device further comprises a balancing weight, wherein the balancing weight is sleeved on the pipe fitting; Along the height direction of the pipe fitting, scale marks are arranged on the side wall of the pipe fitting at intervals. In some embodiments, the balancing weight is in a circular ring structure, and the balancing weight and the connecting piece are mutually adsorbed. In some embodiments, the edge of the base has a raised structure extending toward a side facing away from the base such that a predetermined angle is provided between the base and the raised structure. In some embodiments, the apparatus further includes an image pickup apparatus, an optical axis direction of the image pickup apparatus being directed toward the pipe, the image pickup apparatus being configured to photograph a height of the liquid in the first space. Compared with the prior art, the utility model has the following technical progress: The utility model can accurately measure the water conductivity of the undisturbed soil sample through the mutual combination of the cutting ring, the pipe fitting and the connecting piece, ensures the authenticity and the reliability of the measuring result, simultaneously can observe the water flow condition in real time through the transparent pipe fitting, further improves the measuring precision, and has compact structure, simple operation and low cost, thereby being convenient for subsequent operation and research. Drawings The accompanying drawings are