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CN-224231305-U - Sampling device for paddy field deep soil

CN224231305UCN 224231305 UCN224231305 UCN 224231305UCN-224231305-U

Abstract

The application relates to a sampling device for paddy field deep soil, and relates to the technical field of soil sampling devices. The soil sampling device for deep soil in a water field comprises a barrel body and a soil column cutting piece, wherein sampling holes penetrating through two ends in the axial direction of the barrel body are formed in the barrel body, the barrel body comprises a first half barrel and a second half barrel, one side of the first half barrel is hinged with one side of the second half barrel, the other side of the first half barrel is detachably connected with the other side of the second half barrel through a locking structure, the first half barrel is buckled with the second half barrel to form the barrel body and the sampling holes, one side of the first half barrel or the second half barrel is provided with a splicing channel, the soil column cutting piece comprises a connecting rod and a cutting shovel fixedly connected with the end part of the connecting rod, and the cutting shovel can penetrate through the splicing channel and be inserted into the sampling holes to cut soil columns in the sampling holes. The sampling device provided by the application has the advantages of simple structure, low manufacturing and using cost, convenience and reliability in use and capability of efficiently sampling deep soil of paddy fields.

Inventors

  • YANG ZHENGLUN
  • CUI QIANQIAN
  • WAN XIANG
  • ZHANG ZHONG
  • TIAN YE
  • YE DAO

Assignees

  • 湖北省地质调查院

Dates

Publication Date
20260512
Application Date
20250527

Claims (10)

  1. 1. The sampling device for paddy field deep soil comprises a cylinder (10) and a soil column cutting piece (20), wherein sampling holes (11) penetrating through two ends of the cylinder (10) along the axial direction of the cylinder are formed in the cylinder; The device is characterized in that the cylinder body (10) comprises a first half cylinder (12) and a second half cylinder (13), one side of the first half cylinder (12) is hinged with one side of the second half cylinder (13), the other side of the first half cylinder (12) is detachably connected with the other side of the second half cylinder (13) through a locking structure (60), and the first half cylinder (12) and the second half cylinder (13) are buckled and connected to form the cylinder body (10) and the sampling hole (11); One side of the first half cylinder (12) or the second half cylinder (13) is provided with an inserting channel (131), the soil column cutting piece (20) comprises a connecting rod (21) and a cutting shovel (22) fixedly connected to the end part of the connecting rod (21), and the cutting shovel (22) can be inserted into the sampling hole (11) through the inserting channel (131) to cut off the soil column in the sampling hole (11).
  2. 2. The device for sampling paddy field deep soil according to claim 1, wherein one side of the first half cylinder (12) is hinged with one side of the second half cylinder (13) through a hinge (50), a first handle (15) is fixedly arranged at the upper end of the first half cylinder (12), a second handle (16) is fixedly arranged at the upper end of the second half cylinder (13), and when the first half cylinder (12) is buckled with the second half cylinder (13), the first handle (15) and the second handle (16) are axisymmetrically arranged by taking a central axis of the sampling hole (11) as a symmetry axis.
  3. 3. The device for sampling deep soil in paddy fields according to claim 1 or 2, wherein the first half cylinder (12) has a first step surface (122) on one side of the locking structure (60), the second half cylinder (13) has a second step surface (133) on one side of the locking structure (60), and the first step surface (122) is abutted against the second step surface (133) when the first half cylinder (12) is abutted against the second half cylinder (13).
  4. 4. A paddy field deep soil sampling device according to claim 3, characterized in that a sealing gasket (17) is attached to the first step surface (122) and/or the second step surface (133).
  5. 5. The sampling device for paddy field deep soil according to claim 1 or 2, further comprising a pipe wall scraper (30) for scraping and cleaning the inner side walls of the first half cylinder (12) and the second half cylinder (13) and a soil column scraper (70) for completely scraping and transferring the whole soil column from the inside of the first half cylinder (12) or the second half cylinder (13), wherein the pipe wall scraper (30) comprises a first handle (31) and a scraper (32) fixedly connected to one end of the first handle (31), one end of the scraper (32) away from the first handle (31) takes an arc shape matched with the inner side walls of the first half cylinder (12) and the second half cylinder (13), the soil column scraper (70) comprises a second handle (71) and a thin blade (72) with an arc-shaped curved surface, the shape of the thin blade (72) is matched with the inner walls of the first half cylinder (12) and the second half cylinder (13), and the second scraper (32) takes the shape of a thin blade (71) which is in the shape of a rod and is fixedly connected to the two end of the same arc-shaped blade (71) respectively.
  6. 6. The paddy field deep soil sampling device according to claim 1 or 2, wherein the locking structure (60) comprises a mounting plate (61) fixedly connected to the outer side surface of the first half cylinder (12) and a mounting seat (62) fixedly connected to the outer side surface of the second half cylinder (13), the mounting plate (61) and the mounting seat (62) are oppositely arranged, one end of the mounting plate (61) facing the mounting seat (62) is wound outwards to form a hook (611), a swinging arm (63) capable of swinging is arranged on the mounting seat (62), and a pull ring (64) capable of being hung on the hook (611) is movably connected to the swinging arm (63).
  7. 7. The paddy field deep soil sampling device according to claim 1 or 2, wherein the locking structure (60) comprises a first fixing plate (65) fixedly connected to the outer side surface of the first half cylinder (12) and a second fixing plate (66) fixedly connected to the outer side surface of the second half cylinder (13), one end of the first fixing plate (65) extends outwards towards the second fixing plate (66), a locking ring (651) is fixedly arranged at the outer side of the end of the first fixing plate (65), a sleeve (661) is fixedly arranged at one side of the second fixing plate (66), a plug pin (67) is inserted into the sleeve (661), and one end of the plug pin (67) can be inserted into the locking ring (651).
  8. 8. The device for sampling deep soil in paddy fields according to claim 1 or 2, wherein an overflow port (121) communicated with the sampling hole (11) is formed on the upper end or the side wall near the upper end of the first half cylinder (12); An additional layer (14) along the length direction of the second half cylinder (13) is arranged on the outer side of the second half cylinder (13), the additional layer (14) is of an arc-shaped structure, a gap is formed between the middle part of the width direction of the additional layer (14) and the outer side of the second half cylinder (13), two sides of the additional layer (14) are fixedly connected to the outer side of the second half cylinder (13), and an inserting channel (131) is formed between the additional layer (14) and the outer side of the cylinder body (10); The lower end or the position close to the lower end of the second half cylinder (13) is provided with a guiding groove (132) which is inclined downwards, the guiding groove (132) is communicated with the sampling hole (11), and the upper end of the guiding groove (132) is communicated with the bottom of the inserting channel (131).
  9. 9. The device for sampling paddy field deep soil according to claim 8, wherein the connecting rod (21) of the soil column cutting member (20) is arc-shaped, the cutting shovel (22) of the soil column cutting member (20) is made of flexible metal sheets, the cutting shovel (22) and the connecting rod (21) are integrally formed, one end, away from the cutting shovel (22), of the connecting rod (21) is provided with a blocking limiting member (23), and the shape of the inner wall of the sampling hole (11) is matched with the shape of the side, away from the connecting rod (21), of the cutting shovel (22).
  10. 10. The sampling device for paddy field deep soil according to claim 1 or 2, further comprising a stirring rod (40), wherein the stirring rod (40) comprises a stirring rod (41), a third handle (43) fixedly connected to one end of the stirring rod (41) and stirring blades (42) positioned on the peripheral surface of the stirring rod (41), and the stirring blades (42) are spirally wound along the circumferential direction of the stirring rod (41).

Description

Sampling device for paddy field deep soil Technical Field The application relates to the technical field of soil sampling devices, in particular to a sampling device for paddy field deep soil. Background Paddy field refers to the land where ridges (ridges) are built in urban, town, village and independent mining areas, and can store water frequently and be used for planting aquatic crops such as rice. The paddy field soil is a special soil type formed under the condition of long-term flooding, has unique physical, chemical and biological characteristics, has high microorganism content, is different from dry soil, has a special oxidation-reduction process, influences nutrient recycling and microorganism-mediated Soil Organic Matter (SOM) turnover, and has important values in researching the organic matter formation and preservation mechanism of the paddy field soil, improving the organic carbon warehouse management efficiency of the farmland soil and optimizing the agricultural ecological environment. In the field, the collection of paddy field soil samples is a fundamental link of research, and especially, deep soil sampling is carried out in a watering period, so that key data support can be provided for revealing the special properties of paddy field soil. At present, in the paddy field soil sampling process, a common method is to manually dig out by using a spade, the whole process is time-consuming and labor-consuming, the spade is used for taking out a lot of soil moisture, the soil moisture is required to be drained and then is filled into a self-sealing bag, when the sampling amount is large, the test requirement is difficult to meet, especially when deep soil samples are sampled, the difficulty is higher, while the traditional soil sampler is usually composed of a metal pipe and a handle, samples are obtained by inserting the metal pipe and the handle into the soil, and the design is more specific to dry soil and is difficult to adapt to the soil environment with higher water content, viscosity and poor adhesive force in the paddy field. In addition, there are some improved sampling tools, such as sampling tubes with sealing devices or samplers with spiral pushing structures, which can improve the sampling efficiency to a certain extent, but have complex structures and high cost, and still cannot conveniently and effectively cope with the sampling of deep soil in paddy fields, which brings about certain inconvenience and difficulty for the research on the soil related to paddy rice. The applicant has developed a device specially for sampling paddy field deep soil in a watering period, which comprises a barrel, a soil column cutting piece and a bulldozer, wherein when the device is used, the whole barrel is firstly vertically pressed downwards into the paddy field deep soil in the watering period to form a soil column in the barrel, then a cutting shovel is extended into a position close to the lower end of the barrel, the soil column in the barrel is cut off to disconnect the soil column in a sampling hole from the soil below, finally the barrel is pulled out of the soil and is moved to a preset position, the bulldozer is pushed into the barrel from the upper end of the barrel, and the soil column in the barrel is pushed out by a piston pushing block at the end part of the bulldozer. In this process, the bulldozer needs to be inserted into the cylinder, the earth pillar is extruded to deform, the cleanliness of the inner wall of the cylinder after each sampling is difficult to ensure, and in addition, the use is inconvenient. Disclosure of utility model In order to further improve convenience and reliability of sampling deep soil of paddy fields, the application provides a sampling device for the deep soil of paddy fields. The application provides a sampling device for paddy field deep soil, which adopts the following technical scheme: The sampling device for the paddy field deep soil comprises a barrel and a soil column cutting piece, wherein sampling holes penetrating through two ends along the axial direction of the barrel are formed in the barrel; The cylinder body comprises a first half cylinder and a second half cylinder, wherein one side of the first half cylinder is hinged with one side of the second half cylinder, and the other side of the first half cylinder is detachably connected with the other side of the second half cylinder through a locking structure; One side of the first half cylinder or the second half cylinder is provided with an inserting channel, the soil column cutting piece comprises a connecting rod and a cutting shovel fixedly connected to the end part of the connecting rod, and the cutting shovel can penetrate through the inserting channel to be inserted into the sampling hole for cutting the soil column in the sampling hole. When the soil column cutting device is used, the whole barrel is vertically pressed downwards into paddy field deep soil, a proper depth is pressed i