Soil analysis and assay centrifuge tube

Abstract

The utility model relates to the technical field of centrifugal tubes, and discloses a soil analysis and assay centrifugal tube which comprises a tube body, a tube cover is detachably mounted at the open end of the tube body, the soil analysis and assay centrifugal tube further comprises a scraping plate, the scraping plate is movably connected in the tube body, a connecting rod is detachably mounted on the bottom side of the tube cover, and the scraping plate is movably connected in the tube body. The bottom end of the connecting rod is fixedly connected with the middle of the upper surface of a scraper. The first external thread is spirally connected with the internal thread, the pipe cover can be screwed off, the open end of the pipe body can be opened, separated soil stock solution in the pipe body can be conveniently poured out, then the pipe cover continues to be pulled upwards, the scraping plate can be pulled through the connecting rod to move upwards in the pipe body, soil raw materials on the inner wall of the pipe body can be scraped out, and the soil stock solution can be conveniently poured out. Therefore, the problem that soil raw materials are adhered to the inner wall of the tube body and are inconvenient to collect in an existing soil analysis and assay centrifugal tube is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuge tubes, in particular to a soil analysis and testing centrifuge tube. Background Art

[0002] The existing methods for obtaining soil stock solution include the leachate method. This method may dilute the soil solution as the amount of soil irrigation increases, and cannot accurately and truly reflect the physical and chemical indicators of the soil. Secondly, there is also the "squeezing method" to obtain soil stock solution. This method has relatively high requirements for soil moisture content. At the same time, due to the limitation of soil moisture content, a large amount of soil is required. This method is time-consuming and labor-intensive. Another method is to use a centrifuge to centrifuge the soil "stock solution" to separate it, and a centrifuge tube is required during use.

[0003] After searching, the publication number is CN204027900U, which discloses a combined centrifuge tube for extracting soil raw liquid, including a tube cover, a centrifugal center tube, a filter plate, and a cup-shaped base for holding the raw liquid. The centrifugal center tube is provided with a discharge port and a liquid outlet. The discharge port is provided with the tube cover, and the tube cover and the discharge port are connected by a thread. The liquid outlet is provided with a filter plate, and the filter plate is provided with a plurality of filter holes.

[0004] In the process of realizing the utility model, the inventors found that there are at least the following problems in the prior art that have not been solved: in the above case, although the soil solution can be separated during use, after the soil solution is separated, the soil raw materials are easy to adhere to the inner wall of the centrifuge tube, which is inconvenient for the staff to collect.

[0005] Therefore, we propose a soil analysis centrifuge tube that can solve the above problems. Utility Model Content

[0006] The utility model aims to provide a soil analysis and testing centrifuge tube, which solves the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a soil analysis and testing centrifuge tube, comprising a tube body, a tube cover detachably mounted on the open end of the tube body, and a scraper movably connected to the inside of the tube body, a connecting rod detachably mounted on the bottom side of the tube cover, and the bottom end of the connecting rod is fixedly connected to the middle part of the upper surface of the scraper.

[0008] As an optional solution of the technical solution of the present application, a threaded sleeve is fixedly connected to the middle part of the inner wall of the top end of the tube cover, a second external thread is opened on the outer side of the top end of the connecting rod, and the tube cover and the connecting rod are spirally connected with the second external thread through the threaded sleeve.

[0009] As an optional solution of the technical solution of the present application, a rubber ring is bonded to the outer side of the scraper, and the outer side of the rubber ring is in contact with the inner wall of the tube body.

[0010] As an optional solution of the technical solution of the present application, the inner wall of the tube cover is provided with an internal thread, the outer side of the open end of the tube body is provided with a first external thread, and the tube body and the tube cover are spirally connected via the internal thread and the first external thread.

[0011] As an optional solution of the technical solution of the present application, the length of the connecting rod matches that of the tube body, and the diameter of the scraper matches that of the inner diameter of the tube body.

[0012] Compared with the prior art, the utility model has the following beneficial effects: through the spiral connection between the first external thread and the internal thread, the tube cover can be unscrewed and the open end of the tube body can be opened, so that the separated soil concentrate in the tube body can be poured out conveniently, and then the tube cover can be pulled upwards, and the scraper can be pulled upwards in the tube body through the connecting rod, so that the soil raw materials on the inner wall of the tube body can be scraped out, thereby solving the problem of the existing soil analysis and testing centrifuge tube, in which the soil raw materials adhere to the inner wall of the tube body and are inconvenient to collect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a front view of a soil analysis and testing centrifuge tube of the utility model;

[0015] Figure 2 The utility model is a schematic diagram of the installation of a scraper of a soil analysis and testing centrifuge tube.

[0016] In the figure: 1, pipe body; 11, pipe cover; 12, scraper; 13, connecting rod; 14, threaded sleeve; 15, second external thread; 16, internal thread; 17, first external thread; 18, rubber ring. DETAILED DESCRIPTION

[0017] See also Figure 1-Figure 2The utility model provides a technical solution: a soil analysis and testing centrifuge tube, comprising a tube body 1, a tube cover 11 is detachably installed at the open end of the tube body 1, and also comprises a scraper 12, the scraper 12 is movably connected to the inside of the tube body 1, a connecting rod 13 is detachably installed on the bottom side of the tube cover 11, the bottom end of the connecting rod 13 is fixedly connected to the middle part of the upper surface of the scraper 12, the diameter of the scraper 12 matches the inner diameter of the tube body 1, the connecting rod 13 matches the length of the tube body 1, the inner wall of the tube cover 11 is provided with an internal thread 16, the outer side of the open end of the tube body 1 is provided with a first external thread 17, the tube body 1 and the tube cover 11 are spirally connected through the internal thread 16 and the first external thread 17.

[0018] In this technical solution, the first external thread 17 is spirally connected with the internal thread 16, so that the tube cover 11 can be unscrewed and the open end of the tube body 1 can be opened, so that the separated soil concentrate in the tube body 1 can be poured out conveniently, and then the tube cover 11 can be pulled upwards, and the scraper 12 can be pulled upwards in the tube body 1 through the connecting rod 13, so that the soil raw materials on the inner wall of the tube body 1 can be scraped out, thereby solving the problem of the existing soil analysis and testing centrifuge tube, in which the soil raw materials adhere to the inner wall of the tube body 1 and are inconvenient to collect.

[0019] In this embodiment, a threaded sleeve 14 is fixedly connected to the middle of the inner wall of the top end of the tube cover 11, and a second external thread 15 is opened on the outer side of the top end of the connecting rod 13. The tube cover 11 and the connecting rod 13 are spirally connected through the threaded sleeve 14 and the second external thread 15.

[0020] In this technical solution, the pipe cover 11 and the connecting rod 13 are spirally connected through the threaded sleeve 14 and the second external thread 15, which facilitates the disassembly of the pipe cover 11 and the connecting rod 13 and the recycling of the scraper 12.

[0021] In this embodiment, a rubber ring 18 is bonded to the outer side of the scraper 12 , and the outer side of the rubber ring 18 is in contact with the inner wall of the tube body 1 .

[0022] In this technical solution, the rubber ring 18 on the outside of the scraper 12 can improve the sealing performance of the connection between the scraper 12 and the inner wall of the tube body 1, and further improve the cleaning effect of the scraper 12.

[0023] When a soil analysis and testing centrifuge tube is used, the scraper 12 is inserted into the lower end of the tube body 1 through the connecting rod 13. At this time, the open end of the tube body 1 is open, which is convenient for the staff to introduce the soil and separation liquid to be separated into the tube body 1, and then tighten the tube cover 11 to seal the tube body 1 and place it on the centrifuge for centrifugal operation. After centrifugation, the tube cover 11 is unscrewed and the open end of the tube body 1 is opened, which is convenient for pouring out the separated soil original liquid in the tube body 1, and then the tube cover 11 is continued to be pulled upwards, and the scraper 12 can be pulled upwards in the tube body 1 through the connecting rod 13 to scrape out the soil raw materials on the inner wall of the tube body 1, thereby solving the problem of the existing soil analysis and testing centrifuge tube that the soil raw materials adhere to the inner wall of the tube body 1 and are inconvenient to collect. The tube cover 11 and the connecting rod 13 are spirally connected with the second external thread 15 through the threaded sleeve 14, which is convenient for the disassembly of the tube cover 11 and the connecting rod 13 and the recycling and reuse of the scraper 12.

Claims

1. A soil analysis centrifuge tube, comprising a tube body (1), the open end of the tube body (1) being detachably mounted with a tube cover (11), characterized in that: It also includes a scraper (12), which is movably connected to the inside of the tube body (1). A connecting rod (13) is detachably mounted on the bottom side of the tube cover (11), and the bottom end of the connecting rod (13) is fixedly connected to the middle part of the upper surface of the scraper (12).

2. A soil analysis centrifuge tube according to claim 1, characterized in that: A threaded sleeve (14) is fixedly connected to the middle of the inner wall of the top end of the tube cover (11), a second external thread (15) is provided on the outer side of the top end of the connecting rod (13), and the tube cover (11) and the connecting rod (13) are spirally connected via the threaded sleeve (14) and the second external thread (15).

3. A soil analysis centrifuge tube according to claim 1, characterized in that: A rubber ring (18) is bonded to the outer side of the scraper (12), and the outer side of the rubber ring (18) is in contact with the inner wall of the tube body (1).

4. A soil analysis centrifuge tube according to claim 1, characterized in that: The inner wall of the tube cover (11) is provided with an internal thread (16), the outer side of the open end of the tube body (1) is provided with a first external thread (17), and the tube body (1) and the tube cover (11) are spirally connected via the internal thread (16) and the first external thread (17).

5. A soil analysis centrifuge tube according to claim 1, characterized in that: The length of the connecting rod (13) matches that of the pipe body (1), and the diameter of the scraper (12) matches that of the inner diameter of the pipe body (1).

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