A centrifugal analysis device for soil testing

Abstract

The utility model discloses a centrifugal analysis device for soil detection relates to soil detection technical field, including centrifugal storehouse, the centrifugal storehouse bottom side inner wall rotation is connected with the pivot, the outer surface of pivot is opened and is equipped with a plurality of first sliding slot, the bottom side inner wall fixed connection of pivot has the guide rod, the outer surface sliding connection of guide rod has the sliding sleeve, the outer surface fixed connection of sliding sleeve has a plurality of corresponding slide bar of first sliding slot, the one end fixed connection of slide bar away from sliding sleeve has test tube bottom support, the outer surface fixed connection of pivot has a plurality of number corresponding connecting rod of first sliding slot, the one end fixed connection of connecting rod away from pivot has test tube rack, the side of test tube rack close to pivot is opened and is equipped with the second sliding slot. The utility model has the advantages of: test tube bottom support solved the traditional centrifuge when placing test tube, and test tube is easy to break the problem, also shortened the time of taking, improved the experimental efficiency.

Description

Technical Field

[0001] This utility model relates to the field of soil testing technology, specifically to a centrifugal analysis device for soil testing. Background Technology

[0002] A soil centrifuge is a device used to separate soil samples by centrifugation to obtain the physicochemical properties of different components in the soil. Through centrifugal force, particles in the soil sample are separated into layers according to density and particle size, facilitating subsequent accurate detection and analysis of indicators such as soil nutrient content, particle composition, and pollutant distribution. It is widely used in agricultural research, environmental monitoring, geological exploration, and other fields, and is an indispensable tool in soil testing.

[0003] Before use, test tubes are often placed directly into the test tube rack inside the centrifuge for soil testing. This can easily cause the test tubes to collide with the inner wall of the rack, leading to breakage and experimental accidents. In addition, after centrifugation, the limited space at the top of the test tubes for hand access increases the time required to handle them, reducing experimental efficiency. Therefore, a centrifugal analysis device for soil testing is proposed to solve the problems mentioned above. Utility Model Content

[0004] To solve the above-mentioned technical problems, a centrifugal analysis device for soil testing is provided. This technical solution solves the problems mentioned in the background art, such as the test tubes in the soil testing centrifuge easily colliding with the inner wall of the test tube rack during the placement of test tubes, resulting in test tube damage, and the limited space at the top of the test tubes for hand handling, resulting in increased handling time.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A centrifugal analysis device for soil testing includes a centrifuge chamber. A rotating shaft is rotatably connected to the inner wall of the bottom side of the centrifuge chamber. A plurality of first grooves are formed through the outer surface of the rotating shaft. A guide rod is fixedly connected to the inner wall of the bottom side of the rotating shaft. A sliding sleeve is slidably connected to the outer surface of the guide rod. A plurality of sliding rods corresponding to the first grooves are fixedly connected to the outer surface of the sliding sleeve. A test tube base is fixedly connected to the end of the sliding rod away from the sliding sleeve. A plurality of connecting rods corresponding to the first grooves are fixedly connected to the outer surface of the rotating shaft. A test tube rack is fixedly connected to the end of the connecting rod away from the rotating shaft. A second groove is formed through the side of the test tube rack near the rotating shaft.

[0006] Preferably, the lower surface of the centrifuge chamber is fixedly connected to four evenly distributed support legs, and a drive motor is fixedly installed on the lower surface of the centrifuge chamber inside the four support legs. The output end of the drive motor passes through the lower end of the centrifuge chamber and is fixedly connected to the lower end of the rotating shaft.

[0007] Preferably, a pull block is fixedly connected to the upper end of the sliding sleeve.

[0008] Preferably, the slide rod is slidably connected inside the first slide groove and the second slide groove, respectively.

[0009] Preferably, the test tube base is slidably connected to the inside of the test tube rack.

[0010] Preferably, the upper surface of the centrifuge chamber has a through-hole, a sealing cover is hinged to the upper surface of the centrifuge chamber on one side of the placement hole, a limit post is fixedly connected to the upper surface of the centrifuge chamber on the side of the placement hole away from the sealing cover, and a limit plate is rotatably connected to the outer surface of the limit post.

[0011] Preferably, a handle is fixedly connected to the side of the sealing cap away from the centrifuge chamber.

[0012] Compared with the prior art, the present invention provides a centrifugal analysis device for soil testing, which has the following beneficial effects: This invention features a liftable test tube holder. When placing test tubes, the holder can be raised first, and then lowered slowly after the test tubes are placed in, reducing collisions between the test tubes and the inner wall of the test tube rack. This solves the problem of easily broken test tubes in traditional centrifuges. At the same time, when retrieving test tubes, the rising test tube holder increases the exposed length of the upper part of the test tube, providing more space for hand access and shortening the retrieval time. This also solves the problem of limited space at the top of traditional test tubes. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is the right view of the present invention; Figure 4 This is a cross-sectional view of the present invention.

[0014] The numbers on the map are: 1. Centrifuge chamber; 2. Support leg; 3. Drive motor; 4. Placement port; 5. Sealing cap; 6. Limiting post; 7. Limiting plate; 8. Rotating shaft; 9. First slide groove; 10. Guide rod; 11. Sliding sleeve; 12. Sliding rod; 13. Test tube base; 14. Connecting rod; 15. Test tube rack; 16. Second slide groove; 17. Handle; 18. Pull block. Detailed Implementation

[0015] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0016] Reference Figures 1-4 As shown, a centrifugal analysis device for soil testing includes a centrifuge chamber 1. A rotating shaft 8 is rotatably connected to the inner wall of the bottom side of the centrifuge chamber 1. Several first sliding grooves 9 are formed through the outer surface of the rotating shaft 8. A guide rod 10 is fixedly connected to the inner wall of the bottom side of the rotating shaft 8. A sliding sleeve 11 is slidably connected to the outer surface of the guide rod 10. Several sliding rods 12 corresponding to the first sliding grooves 9 are fixedly connected to the outer surface of the sliding sleeve 11. A test tube base 13 is fixedly connected to the end of the sliding rod 12 away from the sliding sleeve 11. The sliding sleeve 11 moves up and down, causing the sliding rods 12 and the test tube base 13 to move synchronously, thereby adjusting the height of the test tube. When placing the test tube, the test tube base 13 is first pulled up by a pull block 18. After the test tube is placed, the pull block 18 is pushed to lower the sliding sleeve 11 back to its original position. When taking out the test tube, the base is pulled up to expose more space at the top of the test tube, making it easier to pick up by hand. A number of connecting rods 14, corresponding to the number of first sliding grooves 9, are fixedly connected to the outer surface of the rotating shaft 8. A test tube rack 15 is fixedly connected to the end of each connecting rod 14 away from the rotating shaft 8. The connecting rods 14 connect the rotating shaft 8 and the test tube rack 15, transmitting the rotational force of the rotating shaft 8 to the test tube rack 15, causing the test tubes to rotate synchronously. The test tube rack 15 accommodates and limits the test tubes, ensuring they remain vertical during centrifugation and preventing swaying. A second sliding groove 16 is provided through the test tube rack 15 on the side closest to the rotating shaft 8. The second sliding groove 16 cooperates with the first sliding groove 9 to further restrict the sliding direction of the sliding rod 12, ensuring that the test tube base 13 rises and falls stably along the inner wall of the test tube rack 15, preventing collisions between the test tubes and the test tube rack 15.

[0017] Furthermore, four evenly distributed support legs 2 are fixedly connected to the lower surface of the centrifuge chamber 1. A drive motor 3 is fixedly installed on the lower surface of the centrifuge chamber 1 inside the four support legs 2. The output end of the drive motor 3 passes through the lower end of the centrifuge chamber 1 and is fixedly connected to the lower end of the rotating shaft 8. The drive motor 3 is used to provide a power source and drives the rotating shaft 8 to rotate at high speed through the output end to achieve the centrifugal effect.

[0018] Furthermore, a pull block 18 is fixedly connected to the upper end of the sliding sleeve 11. The pull block 18 provides a force application point for the sliding sleeve 11, making it convenient for the operator to pull the sliding sleeve 11 to adjust the height of the test tube base 13.

[0019] Furthermore, the slide rod 12 is slidably connected to the inside of the first slide groove 9 and the second slide groove 16 respectively.

[0020] Furthermore, the test tube base 13 is slidably connected to the inside of the test tube rack 15.

[0021] Furthermore, a placement opening 4 is provided through the upper surface of the centrifuge chamber 1. A sealing cover 5 is hinged to one side of the upper surface of the centrifuge chamber 1 at the placement opening 4. A handle 17 is fixedly connected to the side of the sealing cover 5 away from the centrifuge chamber 1. The handle 17 facilitates the operator in opening and closing the sealing cover 5 and provides a point of leverage for the hand. A limiting post 6 is fixedly connected to the upper surface of the centrifuge chamber 1 at the side of the placement opening 4 away from the sealing cover 5. A limiting plate 7 is rotatably connected to the outer surface of the limiting post 6. The sealing cover 5 is used to close the placement opening 4 to prevent the test tube from accidentally flying out or the internal liquid from splashing out during centrifugation, while keeping the interior of the centrifuge chamber 1 sealed. The sealing cover 5 is opened by flipping the handle 17 upwards, and after the test tube is placed in, it is closed downwards to seal against the upper surface of the centrifuge chamber 1. After the sealing cover 5 is closed, the limiting plate 7 is rotated to press it against the upper surface of the sealing cover 5, restricting the flipping of the sealing cover 5; to open it, the limiting plate 7 is rotated in the opposite direction to release the restriction.

[0022] Working principle: When using this utility model, first connect the external power supply of the device, rotate the limiting plate 7 to release the restriction on the sealing cover 5, grasp the handle 17 to open the sealing cover 5, pull the pull block 18 upward to make the sliding sleeve 11 rise along the guide rod 10, and drive the sliding rod 12 to slide in the first sliding groove 9 and the second sliding groove 16, so that the test tube base 13 is raised to the upper end of the test tube rack 15. Place the test tube containing the soil sample into the test tube rack 15, with the bottom of the test tube placed on the test tube base 13, push the pull block 18 down, and the test tube base 13 will fall with the sliding sleeve 11. The test tube will gradually enter the interior of the test tube rack 15 and be stably limited. Close the sealing cover 5, rotate the limiting plate 7 to press it on the sealing cover 5 to complete the fixation, turn on the drive motor 3, and the motor drives the rotating shaft 8 to rotate. Through the connecting rod 14 and the test tube rack 15, the test tube will be driven to rotate at high speed for centrifugation analysis. After centrifugation is completed, turn off the motor. After the rotating shaft 8 stops, repeat steps 1 and 2, pull up the test tube base 13, and take out the test tube.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A centrifugal analysis device for soil testing, characterized in that, The centrifuge chamber (1) is rotatably connected to the inner wall of the bottom side of the centrifuge chamber (1). A plurality of first grooves (9) are opened through the outer surface of the rotating shaft (8). A guide rod (10) is fixedly connected to the inner wall of the bottom side of the rotating shaft (8). A sliding sleeve (11) is slidably connected to the outer surface of the guide rod (10). A plurality of sliding rods (12) corresponding to the first grooves (9) are fixedly connected to the outer surface of the sliding sleeve (11). A test tube base (13) is fixedly connected to the end of the sliding rod (12) away from the sliding sleeve (11). A plurality of connecting rods (14) corresponding to the first grooves (9) are fixedly connected to the outer surface of the rotating shaft (8). A test tube rack (15) is fixedly connected to the end of the connecting rod (14) away from the rotating shaft (8). A second groove (16) is opened through the side of the test tube rack (15) near the rotating shaft (8).

2. The centrifugal analysis device for soil testing according to claim 1, characterized in that: The lower surface of the centrifuge chamber (1) is fixedly connected to four evenly distributed support legs (2). The lower surface of the centrifuge chamber (1) is fixedly installed on the inner side of the four support legs (2). The output end of the drive motor (3) passes through the lower end of the centrifuge chamber (1) and is fixedly connected to the lower end of the rotating shaft (8).

3. The centrifugal analysis device for soil testing according to claim 1, characterized in that: A pull block (18) is fixedly connected to the upper end of the sliding sleeve (11).

4. The centrifugal analysis device for soil testing according to claim 1, characterized in that: The slide bar (12) is slidably connected to the inside of the first slide groove (9) and the second slide groove (16).

5. A centrifugal analysis device for soil testing according to claim 1, characterized in that: The test tube base (13) is slidably connected to the inside of the test tube rack (15).

6. A centrifugal analysis device for soil testing according to claim 1, characterized in that: The upper surface of the centrifuge chamber (1) is provided with a placement port (4). A sealing cover (5) is hinged to the upper surface of the centrifuge chamber (1) on one side of the placement port (4). A limiting post (6) is fixedly connected to the upper surface of the centrifuge chamber (1) on the side of the placement port (4) away from the sealing cover (5). A limiting plate (7) is rotatably connected to the outer surface of the limiting post (6).

7. A centrifugal analysis device for soil testing according to claim 6, characterized in that: A handle (17) is fixedly connected to the side of the sealing cap (5) away from the centrifuge chamber (1).

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