Centrifugal analysis device for soil detection

Abstract

The invention discloses a centrifugal analysis device for soil detection, and particularly relates to the technical field of soil detection.The centrifugal analysis device comprises a base, the bottom of the base is fixedly connected with a supporting frame, the interior of the supporting frame is fixedly connected with a motor, the output end of the motor penetrates through the base and extends to the top of the base, and the top of the base is provided with a connecting rod; and the connecting rod is connected with the output end of the motor. When the screw sharp-bottomed glass centrifugal tube is inserted into the container fixing groove, one end of the screw sharp-bottomed glass centrifugal tube is firstly inserted into the container fixing groove to be in contact with the rubber wrapping ring and the rubber air bag, and when the screw sharp-bottomed glass centrifugal tube is forcibly inserted into the container fixing groove, the rubber air bag is tightly clamped; the rubber air bag integrally wraps the outer wall of the threaded sharp-bottomed glass centrifugal tube to clamp the whole threaded sharp-bottomed glass centrifugal tube, and meanwhile, the rubber wrapping ring at one end of the first spring clamping piece is used for wrapping and protecting the threaded sharp-bottomed glass centrifugal tube, so that the overall protection and fixity of the threaded sharp-bottomed glass centrifugal tube are ensured.

Description

Technical Field

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

[0002] Soil testing can generally be categorized into types such as overall regional soil background testing, farmland soil environment testing, soil environmental assessment for construction projects, and soil pollution incident testing. To increase crop yields and improve agricultural efficiency, soil testing needs to be given due attention, with strict control over each testing stage to provide reliable data support for agricultural production, create a favorable environment for planting, and promote improved farming efficiency and quality. Conducting soil testing also helps provide the necessary foundation for plant growth. Soil testing is a systematic and complex process, involving many aspects and requiring significant effort. In actual third-party soil testing, various factors can influence the results. Failure to promptly eliminate these adverse factors will increase testing errors, making it difficult to guarantee the accuracy of the results and negatively impacting future planting efforts.

[0003] During centrifugation, the device is prone to vibration, resulting in low stability. Furthermore, during centrifugation, the sample can easily be thrown out of the container due to the high-speed rotation of the container, affecting the test results. Summary of the Invention

[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide a centrifugal analysis device for soil testing. When a screw-top pointed-bottom glass centrifuge tube is inserted into the container fixing groove, one end of the screw-top pointed-bottom glass centrifuge tube is first inserted into the container fixing groove and contacts the rubber wrapping ring and the rubber air bladder. When the screw-top pointed-bottom glass centrifuge tube is forcefully inserted into the container fixing groove, the rubber air bladder completely wraps around the outer wall of the screw-top pointed-bottom glass centrifuge tube and clamps the entire screw-top pointed-bottom glass centrifuge tube. At the same time, the rubber wrapping ring at one end of the first spring clip wraps around and protects the screw-top pointed-bottom glass centrifuge tube, ensuring the protection and fixation of the entire screw-top pointed-bottom glass centrifuge tube, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a centrifuge analysis device for soil testing, comprising a base, a support frame fixedly connected to the bottom of the base, a motor fixedly connected inside the support frame, and the output end of the motor extending through the base to the top of the base, a connecting rod provided at the top of the base, and the connecting rod being connected to the output end of the motor, a sleeve rod sleeved on the outer wall of the connecting rod, a support cover fixedly connected to the outer wall of the sleeve rod, a connecting plate sleeved on the outer wall of the sleeve rod, a placement ring fixedly connected to the outer wall of the connecting plate, and a container fixing groove formed inside the placement ring. A first spring clip is fixedly connected inside the container fixing slot. One end of the first spring clip is hinged to a rubber wrapping ring, and one end of the rubber wrapping ring extends to the outside of the placement ring. A second spring clip is fixedly connected inside the container fixing slot, and one end of the second spring clip is attached to the outer wall of the first spring clip. An elastic fitting ring is fixedly connected to the outer wall of the second spring clip. A rubber air bladder is fixedly connected to the outer wall of the elastic fitting ring. A screw-type pointed-bottom glass centrifuge tube is inserted inside the placement ring, and the rubber wrapping ring and the outer wall of the rubber air bladder are attached to the outside of the screw-type pointed-bottom glass centrifuge tube.

[0006] In a preferred embodiment, the connecting rod is engaged with the output end of the motor by a sealing ring, the output end of the motor is fixedly connected to a snap-fit ​​connector, and the snap-fit ​​connector is snapped into the inside of the connecting rod. The inner wall of the connecting rod is snapped with a connecting ring, the inner wall of the connecting ring is snapped with a torsion ring, and the torsion ring is provided with a positioning pin inside.

[0007] In a preferred embodiment, a first contact pad and a second contact pad are fixedly connected to the top of the base, and a support arm ring is fixedly connected to the bottom of the support cover. The bottom of the support arm ring contacts the first contact pad and the second contact pad, and a load-bearing ring is provided inside the support arm ring.

[0008] In a preferred embodiment, a matching ring is fixedly connected to the outer wall of the support arm ring, and one end of the matching ring contacts the top of the first contact pad. A sealing gasket is fixedly connected to the top of the base, and one end of the support cover is attached to the top of the sealing gasket.

[0009] In a preferred embodiment, the number of connecting discs is multiple sets, and the multiple sets of connecting discs are arranged in a path array on the outer wall of the sleeve rod.

[0010] In a preferred embodiment, the number of container fixing slots is multiple sets, and the multiple sets of container fixing slots are arranged in a ring array about the inside of the placement ring.

[0011] In a preferred embodiment, a shielding cover is fitted on the top of the base, and a bearing is provided inside the shielding cover, which engages with the sleeve rod. A weighted branch is fixedly connected to the top of the shielding cover.

[0012] The technical effects and advantages of this invention are as follows:

[0013] 1. When the screw-top pointed glass centrifuge tube is not inserted into the container fixing slot, the rubber airbag has no compressive force. The rubber airbag is twisted by the elastic fitting ring, causing the elastic fitting ring to move the second spring card towards the center of the container fixing slot. When the screw-top pointed glass centrifuge tube is inserted into the container fixing slot, one end of the screw-top pointed glass centrifuge tube is inserted into the container fixing slot first and contacts the rubber wrapping ring and the rubber airbag. When the screw-top pointed glass centrifuge tube is forcefully inserted into the container fixing slot, the rubber airbag wraps around the outer wall of the screw-top pointed glass centrifuge tube and clamps the screw-top pointed glass centrifuge tube. At the same time, the rubber wrapping ring at one end of the first spring card wraps around and protects the screw-top pointed glass centrifuge tube, ensuring the protection and fixation of the screw-top pointed glass centrifuge tube.

[0014] 2. Soil samples from different regions were collected and placed into screw-top glass centrifuge tubes. The collected screw-top glass centrifuge tubes were then placed in multiple placement rings. Multiple container fixing slots were set inside the placement rings to limit and fix the screw-top glass centrifuge tubes. Two sets of symmetrical first spring clips were set inside the container fixing slots. A rubber wrapping ring was hinged to one end of the first spring clip. The rubber wrapping ring was set at the edge of the container fixing slot. When the screw-top glass centrifuge tube was inserted into the container fixing slot, the rubber wrapping ring at one end of the first spring clip contacted the screw-top glass centrifuge tube, preventing the screw-top glass centrifuge tube from loosening inside the container fixing slot. Attached Figure Description

[0015] Figure 1 This is an exploded view of the present invention.

[0016] Figure 2 This is a bottom view diagram of the present invention.

[0017] Figure 3 This is a front view schematic diagram of the present invention.

[0018] Figure 4 This is a schematic diagram of the front section of the present invention.

[0019] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0020] Figure 6 This is a partial structural diagram of the placement ring of the present invention.

[0021] Figure 7 for Figure 6 Enlarged diagram of point B in the middle.

[0022] The attached figures are labeled as follows: 1. Base, 2. Support frame, 3. Motor, 4. Connecting rod, 5. Sealing ring, 6. Clip joint, 7. Connecting ring, 8. Torsion ring, 9. Positioning pin, 10. Sleeve rod, 11. Support cover, 12. First contact pad, 13. Second contact pad, 14. Support arm ring, 15. Load-bearing ring, 16. Matching ring, 17. Sealing gasket, 18. Connecting plate, 19. Placement ring, 20. Container fixing groove, 21. First spring clip, 22. Rubber wrapping ring, 23. Second spring clip, 24. Elastic fitting ring, 25. Rubber airbag, 26. Screw-in pointed glass centrifuge tube, 27. Shielding cover, 28. Bearing, 29. Weighting branch. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Refer to the instruction manual appendix Figure 1-7An embodiment of the present invention provides a centrifugal analysis device for soil testing, comprising a base 1, a support frame 2 fixedly connected to the bottom of the base 1, a motor 3 fixedly connected inside the support frame 2, and the output end of the motor 3 extending through the base 1 to the top of the base 1. A connecting rod 4 is provided at the top of the base 1, and the connecting rod 4 is connected to the output end of the motor 3. A sealing ring 5 is engaged between the connecting rod 4 and the output end of the motor 3. A snap-fit ​​connector 6 is fixedly connected to the output end of the motor 3, and the snap-fit ​​connector 6 is snapped into the inside of the connecting rod 4. A connecting ring 7 is snapped into the inner wall of the connecting rod 4, and a torsion ring 8 is snapped into the inner wall of the connecting ring 7. A positioning pin 9 is provided inside the torsion ring 8. A sleeve rod 10 is sleeved on the outer wall of the connecting rod 4, and a support cover 11 is fixedly connected to the outer wall of the sleeve rod 10. The top is fixedly connected to a first contact pad 12 and a second contact pad 13. The bottom of the support cover 11 is fixedly connected to a support arm ring 14, and the bottom of the support arm ring 14 contacts the first contact pad 12 and the second contact pad 13. A load-bearing ring 15 is provided inside the support arm ring 14. A matching ring 16 is fixedly connected to the outer wall of the support arm ring 14, and one end of the matching ring 16 contacts the top of the first contact pad 12. A sealing gasket 17 is fixedly connected to the top of the base 1, and one end of the support cover 11 is attached to the top of the sealing gasket 17. A connecting plate 18 is fitted on the outer wall of the sleeve rod 10. There are multiple sets of connecting plates 18, and the multiple sets of connecting plates 18 are arranged in a path array on the outer wall of the sleeve rod 10. When the motor 3 at the bottom of the base 1 is running... The output of motor 3 drives connecting rod 4 and sleeve rod 10 to rotate, causing connecting disc 18 fixed to the outer wall of sleeve rod 10 to rotate. A placement ring 19 is provided on the outer wall of connecting disc 18. During rotation, connecting disc 18 drives the screw-type pointed-bottom glass centrifuge tube 26 to rotate as a whole, measuring soil moisture content, capillary suction, and other indicators under different moisture conditions, plotting soil moisture characteristic curves, and understanding the soil's water mechanics properties. The placement ring 19 is fixedly connected to the outer wall of connecting disc 18. Container fixing slots 20 are provided inside the placement ring 19. Multiple sets of container fixing slots 20 are arranged in a circular array about the inside of the placement ring 19. A first spring clip 21 is fixedly connected inside the container fixing slot 20. One end of the first spring clip 21 is hinged to a rubber wrapping ring 22, and one end of the rubber wrapping ring 22 extends to the outside of the placement ring 19. Soil from different areas is collected into screw-top pointed-bottom glass centrifuge tubes 26. The screw-top pointed-bottom glass centrifuge tubes 26 collected from different areas are placed in multiple placement rings 19. Multiple container fixing slots 20 are provided inside the placement rings 19 to limit and fix the screw-top pointed-bottom glass centrifuge tubes 26. Two sets of symmetrical first spring clips 21 are set inside the container fixing slots 20. A rubber wrapping ring 22 is hinged to one end of the first spring clip 21. The rubber wrapping ring 22 is set at the edge of the container fixing slot 20. When the screw-top pointed-bottom glass centrifuge tube 26 is inserted into the container fixing slot 20...The rubber-wrapped ring 22 at one end of the first spring clip 21 contacts the screw-top pointed-bottom glass centrifuge tube 26 to prevent the screw-top pointed-bottom glass centrifuge tube 26 from becoming loose inside the container fixing groove 20;

[0025] Refer to the instruction manual appendix Figure 1-7 Furthermore, a second spring clip 23 is fixedly connected inside the container fixing groove 20, and one end of the second spring clip 23 is attached to the outer wall of the first spring clip 21. An elastic fitting ring 24 is fixedly connected to the outer wall of the second spring clip 23, and a rubber airbag 25 is fixedly connected to the outer wall of the elastic fitting ring 24. The second spring clip 23 is set on the outer wall of the first spring clip 21, and the elastic fitting ring 24 and the rubber airbag 25 are set on the outer wall of the second spring clip 23. The elastic fitting ring 24 presses against the rubber airbag 25, so that the rubber airbag 25 is attached to the outer wall of the screw-top pointed glass centrifuge tube 26. The screw-top pointed glass centrifuge tube 26 is inserted into the inside of the placement ring 19, and the rubber wrapping ring 22 and the outer wall of the rubber airbag 25 are attached to the outside of the screw-top pointed glass centrifuge tube 26. A shielding cover 27 is fitted on the top of the base 1. A bearing 28 is provided inside the shielding cover 27, and the bearing 28 is engaged with the sleeve rod 10. The top of the shielding cover 27 is fixed. With the weighted branch 29 connected, when the screw-top pointed glass centrifuge tube 26 is not inserted into the container fixing slot 20, the rubber airbag 25 has no compressive force. The rubber airbag 25 is rotated by the elastic fitting ring 24, causing the elastic fitting ring 24 to move the second spring card 23 towards the center of the container fixing slot 20. When the screw-top pointed glass centrifuge tube 26 is inserted into the container fixing slot 20, one end of the screw-top pointed glass centrifuge tube 26 first inserts into the container fixing slot 20 and contacts the rubber wrapping ring 22 and the rubber airbag 25. When the screw-top pointed glass centrifuge tube 26 is forcefully inserted into the container fixing slot 20, the rubber airbag 25 wraps around the outer wall of the screw-top pointed glass centrifuge tube 26 and clamps the screw-top pointed glass centrifuge tube 26. At the same time, the rubber wrapping ring 22 at one end of the first spring card 21 wraps around and protects the screw-top pointed glass centrifuge tube 26, ensuring the protection and fixation of the screw-top pointed glass centrifuge tube 26.

[0026] Working principle: First, prepare the necessary experimental equipment and soil samples, ensuring that the drying, sieving, and grading processes meet the experimental requirements. Use a burette to add an appropriate amount of distilled water to the screw-top pointed-bottom glass centrifuge tube 26, ensuring the sample-water contact surface reaches a certain height to avoid air bubbles. Next, add the pre-calibrated KCl solution to the screw-top pointed-bottom glass centrifuge tube 26 until the liquid level is about 2-3 mm above the soil surface to ensure accurate and reliable experimental data. Place the screw-top pointed-bottom glass centrifuge tube 26 containing the pretreated soil sample into the container fixing slot 20 inside the placement ring 19. Adjust the appropriate centrifugation speed and time. After the equipment has finished running, remove the separated soil sample and record the relevant data, such as soil wet weight and dry weight, calculate the volumetric water content and capillary suction, and plot the soil moisture characteristic curve based on the measured data to analyze the soil moisture mechanical properties and its application in land hydrology and agricultural production.

[0027] During use, the equipment collects soil from different areas into screw-top pointed-bottom glass centrifuge tubes 26. The screw-top pointed-bottom glass centrifuge tubes 26 collected from different areas are placed in multiple placement rings 19. Multiple container fixing grooves 20 are set inside the placement rings 19 to limit and fix the screw-top pointed-bottom glass centrifuge tubes 26. Two sets of symmetrical first spring clips 21 are set inside the container fixing grooves 20. A rubber wrapping ring 22 is hinged to one end of the first spring clip 21. The rubber wrapping ring 22 is set at the edge of the container fixing groove 20. When the screw-top pointed-bottom glass centrifuge tube 26 is inserted into the container fixing groove 20, the rubber wrapping ring 22 at one end of the first spring clip 21 contacts the screw-top pointed-bottom glass centrifuge tube 26 to prevent the screw-top pointed-bottom glass centrifuge tube 26 from loosening inside the container fixing groove 20.

[0028] A second spring card 23 is provided on the outer wall of the first spring card 21. An elastic fitting ring 24 and a rubber air bag 25 are provided on the outer wall of the second spring card 23. The elastic fitting ring 24 presses against the rubber air bag 25 as a whole, so that the rubber air bag 25 fits against the outer wall of the screw-top pointed glass centrifuge tube 26.

[0029] Meanwhile, to prevent the screw-top pointed glass centrifuge tube 26 from detaching from the container fixing groove 20, when the screw-top pointed glass centrifuge tube 26 is not inserted into the container fixing groove 20, the rubber airbag 25 has no compressive force. The rubber airbag 25 is rotated by the elastic fitting ring 24, causing the elastic fitting ring 24 to move the second spring card 23 toward the center of the container fixing groove 20. When the screw-top pointed glass centrifuge tube 26 is inserted into the container fixing groove 20, one end of the screw-top pointed glass centrifuge tube 26 first inserts into the container fixing groove 20 and contacts the rubber wrapping ring 22 and the rubber airbag 25. When the screw-top pointed glass centrifuge tube 26 is forcefully inserted into the container fixing groove 20, the rubber airbag 25 wraps around the outer wall of the screw-top pointed glass centrifuge tube 26 and clamps the screw-top pointed glass centrifuge tube 26.

[0030] Meanwhile, the rubber wrapping ring 22 at one end of the first spring card 21 is used to wrap and protect the screw-top pointed glass centrifuge tube 26, ensuring the overall protection and fixation of the screw-top pointed glass centrifuge tube 26. When the motor 3 at the bottom of the base 1 is running, the output end of the motor 3 drives the connecting rod 4 and the sleeve rod 10 to rotate, causing the connecting plate 18 fixed on the outer wall of the sleeve rod 10 to rotate. A placement ring 19 is set on the outer wall of the connecting plate 18. During the rotation of the connecting plate 18, the screw-top pointed glass centrifuge tube 26 rotates as a whole. The soil moisture content, capillary suction and other indicators under different moisture conditions are measured, and the soil moisture characteristic curve is plotted to understand the water mechanical properties of the soil.

[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0033] In conclusion, the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A centrifugal analysis device for soil testing comprising a base (1) characterised in that: A support frame (2) is fixedly connected to the bottom of the base (1). A motor (3) is fixedly connected inside the support frame (2), and the output end of the motor (3) extends through the base (1) to the top of the base (1). A connecting rod (4) is provided at the top of the base (1), and the connecting rod (4) is connected to the output end of the motor (3). A sleeve rod (10) is fitted on the outer wall of the connecting rod (4). A support cover (11) is fixedly connected to the outer wall of the sleeve rod (10). A connecting plate (18) is fitted on the outer wall of the sleeve rod (10). A placement ring (19) is fixedly connected to the outer wall of the connecting plate (18). A container fixing groove (20) is opened inside the placement ring (19). A first spring is fixedly connected inside the container fixing groove (20). The first spring card (21) has a rubber wrapping ring (22) hinged to one end, and one end of the rubber wrapping ring (22) extends to the outside of the placement ring (19). The container fixing groove (20) is fixedly connected to the inside of the second spring card (23), and one end of the second spring card (23) is attached to the outer wall of the first spring card (21). The outer wall of the second spring card (23) is fixedly connected to an elastic fitting ring (24), and the outer wall of the elastic fitting ring (24) is fixedly connected to a rubber air bag (25). The placement ring (19) is inserted into the inside of a screw-top pointed-bottom glass centrifuge tube (26), and the rubber wrapping ring (22) and the outer wall of the rubber air bag (25) are attached to the outside of the screw-top pointed-bottom glass centrifuge tube (26).

2. A centrifugal analysis device for soil testing according to claim 1, characterized in that: The connecting rod (4) is meshed with the output end of the motor (3) by a sealing ring (5). The output end of the motor (3) is fixedly connected to a snap connector (6), which is snapped into the inside of the connecting rod (4). A connecting ring (7) is snapped into the inner wall of the connecting rod (4). A torsion ring (8) is snapped into the inner wall of the connecting ring (7). A positioning pin (9) is provided inside the torsion ring (8).

3. The centrifugal analysis apparatus for soil testing according to claim 1, characterized by: The base (1) is fixedly connected to the top of a first contact pad (12) and a second contact pad (13), and the support cover (11) is fixedly connected to the bottom of a support arm ring (14), and the bottom of the support arm ring (14) contacts the first contact pad (12) and the second contact pad (13). The support arm ring (14) is provided with a load-bearing ring (15) inside.

4. A centrifugal analysis device for soil testing according to claim 3, characterized in that: The outer wall of the support arm ring (14) is fixedly connected to a matching ring (16), and one end of the matching ring (16) contacts the top of the first contact pad (12). The top of the base (1) is fixedly connected to a sealing pad (17), and one end of the support cover (11) is attached to the top of the sealing pad (17).

5. The centrifugal analysis apparatus for soil testing according to claim 1, characterized by: The number of connecting discs (18) is multiple sets, and the multiple sets of connecting discs (18) are arranged in a path array on the outer wall of the sleeve rod (10).

6. The centrifugal analysis apparatus for soil testing according to claim 1, characterized by: The number of container fixing slots (20) is multiple, and the multiple sets of container fixing slots (20) are arranged in a ring array about the inside of the placement ring (19).

7. The centrifugal analysis apparatus for soil testing according to claim 1, characterized by: The base (1) is fitted with a shield (27) on top. The shield (27) is fitted with a bearing (28) inside. The bearing (28) engages with the sleeve rod (10). The top of the shield (27) is fixedly connected with a weighted branch (29).

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