Centrifugal machine for soil experiment

Abstract

The centrifugal machine for the soil experiment comprises a base, an outer cylinder, a fixing bolt, an extrusion block and a top cover, a bottom groove is formed in the side wall of the base, a driving motor is fixedly installed at the inner top end of the bottom groove, a rotating shaft is movably installed at the top end of the base above the driving motor, and eight supporting blocks are fixedly installed on the side wall of the rotating shaft in a circumferential array at equal intervals; an adjusting groove is formed in the top end of the supporting block in a penetrating mode, a fixing groove is formed in the side wall of the supporting block and communicates with the adjusting groove, a test tube fixing block can be inserted into the inner side of the adjusting groove, an outer cylinder is fixedly installed at the top end of the base on the outer side of the supporting block, and electric push rods are fixedly installed at the top end of the base on the two sides of the rotating shaft; by arranging the adjusting groove, the position of the test tube fixing block is freely set, so that different angular speeds can be provided, different soil samples are centrifuged to different degrees, and the practicability is high.

Description

Technical Field

[0001] The present application relates to the technical field of soil detection, and in particular to a centrifuge for soil experiments. Background Art

[0002] When testing soil samples, centrifuges are usually chosen, mainly because centrifuges have strong separation capabilities and can effectively separate liquid and solid particles or liquid and liquid mixtures in soil solutions, thereby further analyzing the moisture content, physical properties, etc. of the soil.

[0003] Application No. 202121772182.6 discloses a centrifuge for soil testing, including a telescopic rod, a spring, a rotating rod and a clamping plate, etc. Through the cooperation between the centrifuge body, the rotating shaft, the connecting device and the annular block, the spring in the connecting device and the compression of the telescopic rod are used to separate the card block from the rotating shaft, thereby realizing the disassembly effect of the annular block and the rotating shaft. At the same time, the spring and the telescopic rod are used to rebound, so that the card block is connected to the rotating shaft, thereby realizing the fixing effect of the annular block and the rotating shaft, effectively solving the problem of staff placing sample test tubes one by one in the centrifuge, and the annular block is integrated. The body is removed and connected to the rotating shaft after the sample test tube is filled, which reduces the workload of the staff and improves the efficiency of soil detection. Through the cooperation between the fixed rod, the gear, the rack and the clamping plate, the circular rotation of the gear drives the horizontal movement of the rack, thereby realizing the clamping effect of the clamping plate on the sample test tube, and effectively solving the collision problem between the different specifications of the sample test tubes and the inner wall of the test tube placement tube. The clamping of the sample test tube by the clamping plate strengthens the stability of the sample test tube during the centrifugation process, avoids the damage caused by the collision between the sample test tube and the inner wall of the test tube placement tube, and prolongs the service life of the sample test tube.

[0004] However, in use, there are the following defects:

[0005] Although several test tube placement tubes are used to fix the test tubes, the distance between the test tube placement tubes and the centrifugal center point is consistent. Different soil samples may require different centrifugal forces to separate them due to different particle sizes, densities and compositions. The device is not convenient for adjusting the centrifugal forces exerted on the test tube placement tubes to adapt to different soil samples, which affects the adaptability and practicality of the device. Utility Model Content

[0006] The purpose of the present application is to provide a centrifuge for soil experiments, which solves the problem raised in the background technology that although a plurality of test tube placement tubes are used to fix the test tubes, the distance between the test tube placement tubes and the centrifuge center point is consistent, and different soil samples may require different centrifugal forces to separate them due to different particle sizes, densities and compositions. The device is not convenient for adjusting the centrifugal forces exerted on the test tube placement tubes to adapt to different soil samples, thereby affecting the adaptability and practicality of the device.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a centrifuge for soil experiments, comprising a base, an outer cylinder, fixing bolts, an extrusion block and a top cover, characterized in that: a bottom groove is provided on the side wall of the base, a driving motor is fixedly installed on the inner top of the bottom groove, a rotating shaft is movably installed on the top of the base above the driving motor, eight support blocks are fixedly installed on the side wall of the rotating shaft in a circular array and distributed equidistantly, an adjustment groove is provided through the top of the support block, and a fixing groove is provided on the side wall of the support block, the fixing groove is connected with the adjustment groove, a test tube fixing block can be inserted on the inner side of the adjustment groove, an outer cylinder is fixedly installed on the top of the base outside the support block, and electric push rods are fixedly installed on the top of the base on both sides of the rotating shaft.

[0008] In this technical solution, a test tube containing a soil sample is inserted into the test tube slot of the test tube fixing block, and then the extrusion bolt is twisted to make the extrusion block clamp the test tube to keep it stable. Then the test tube slot is inserted into the adjustment slot at the top of the support block, and then the fixing bolt is twisted into the fixing slot on the side to fix the test tube fixing block. Then the drive motor is powered on to start, driving the rotating shaft and the support block to rotate, and centrifugation begins. The position of the test tube can be adjusted through the adjustment slot, the fixing slot and the test tube fixing block to perform centrifugation at different angular velocities. Since the test tube fixing block can By inserting it at any position in the adjusting groove, different angular velocities can be obtained, so that different soil samples can be centrifuged at different speeds at the same time, thereby improving the practicability of the device. At the same time, the test tube can be easily taken through the electric push rod and the support plate. After the centrifugation is completed, the fixing bolts on the side are removed, and the electric push rod is powered to extend it, thereby driving the support plate to rise. The support plate will contact the test tube during the rising process, and lift the test tube and the test tube fixing groove from the adjusting groove, thereby facilitating the taking, thereby improving the practicability and convenience of the device.

[0009] As an optional solution of the technical solution of the present application, a test tube slot is provided through the top of the test tube fixing block, and a compression bolt is threadedly connected to the side wall of the test tube fixing block. The end of the compression bolt located inside the test tube slot is fixedly connected to the compression block.

[0010] As an optional solution of the technical solution of the present application, one end of the fixing bolt passes through the fixing groove and is threadedly connected to the test tube fixing block.

[0011] As an optional solution of the technical solution of the present application, the top end of the electric push rod is fixedly connected to a support plate, the support plate is circular, the outer ring side wall of the support plate does not contact the inner wall of the outer cylinder, and a circular hole is opened in the center of the support plate to accommodate the passage of the rotating shaft.

[0012] As an optional solution of the technical solution of the present application, the outer end of the transmission shaft of the driving motor is fixedly connected to the upper rotating shaft.

[0013] As an optional solution of the technical solution of the present application, the top edge of the outer cylinder is movably connected with a top cover.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present application can adjust the position of the test tube to perform centrifugation at different angular velocities through the adjustment groove, the fixing groove and the test tube fixing block. Since the test tube fixing block can be inserted at any position in the adjustment groove, different angular velocities can be obtained, so that different soil samples can be centrifuged at different speeds at the same time, thereby improving the practicality of the device.

[0016] 2. The present application uses an electric push rod and a support plate to facilitate the removal of the test tube fixing block. After the centrifugation is completed, the fixing bolts on the side are removed, and then the electric push rod is powered to extend it, thereby driving the support plate to rise. The support plate will contact the test tube during the rising process, and lift the test tube and the test tube fixing slot from the adjustment slot, making it easy to take, thereby improving the practicality and convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 An overall view of a centrifuge for soil experiments for this application;

[0019] Figure 2 This is a schematic cross-sectional view of a centrifuge for soil experiments in the present application;

[0020] Figure 3 This is a schematic cross-sectional view of a test tube fixing block of a centrifuge for soil experiments according to the present application.

[0021] In the figure: 1. base; 2. bottom groove; 3. drive motor; 4. rotating shaft; 5. support block; 6. adjustment groove; 7. fixing groove; 8. supporting plate; 9. test tube fixing block; 901, fixing bolt; 10. test tube slot; 11. extrusion bolt; 12. extrusion block; 13. outer cylinder; 14. top cover; 15. electric push rod. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, they are further explained below in conjunction with specific implementation methods.

[0023] like Figure 1 As shown, a centrifuge for soil experiments includes a base 1, an outer cylinder 13, fixing bolts 901, an extrusion block 12 and a top cover 14. The side wall of the base 1 is provided with a bottom groove 2, the top of the base 1 outside the support block 5 is fixedly installed with the outer cylinder 13, and the top edge of the outer cylinder 13 is movably connected with the top cover 14.

[0024] like Figure 2 As shown, a driving motor 3 is fixedly installed at the inner top of the bottom groove 2, the outer end of the transmission shaft of the driving motor 3 is fixedly connected to the upper rotating shaft 4, and the rotating shaft 4 is movably installed at the top of the base 1 above the driving motor 3.

[0025] like Figure 1 and Figure 2 As shown, eight support blocks 5 are fixedly installed on the side wall of the rotating shaft 4 in a circular array and equidistantly distributed. An adjustment groove 6 is penetrated through the top of the support block 5, and a fixing groove 7 is opened on the side wall of the support block 5. The fixing groove 7 is connected with the adjustment groove 6. A test tube fixing block 9 can be inserted into the inner side of the adjustment groove 6. One end of the fixing bolt 901 passes through the fixing groove 7 and is threadedly connected with the test tube fixing block 9. The test tube fixing block 9 can be fixed at any position in the adjustment groove 6, so as to adjust different angular velocities.

[0026] like Figure 1 and Figure 2 As shown, electric push rods 15 are fixedly installed on the top of the base 1 on both sides of the rotating shaft 4, and the top of the electric push rods 15 is fixedly connected to a supporting plate 8, which is circular. The outer ring side wall of the supporting plate 8 does not contact the inner wall of the outer cylinder 13, and a circular hole is opened in the center of the supporting plate 8 to accommodate the passage of the rotating shaft 4.

[0027] like Figure 3 As shown, a test tube slot 10 is provided through the top of the test tube fixing block 9, and a squeeze bolt 11 is threadedly connected to the side wall of the test tube fixing block 9. One end of the squeeze bolt 11 located on the inner side of the test tube slot 10 is fixedly connected to the squeeze block 12. The squeeze bolt 11 drives the squeeze block 12 to clamp the test tube to maintain stability.

[0028] In actual use, the test tube containing the soil sample is inserted into the test tube slot 10 of the test tube fixing block 9, and then the squeezing bolt 11 is twisted to make the squeezing block 12 clamp the test tube to keep it stable, and then the test tube slot 10 is inserted into the adjustment slot 6 at the top of the support block 5, and then the fixing bolt 901 is screwed into the fixing slot 7 on the side to fix the test tube fixing block 9, and then the driving motor 3 is powered on to start, driving the rotating shaft 4 and the support block 5 to rotate, and starting the centrifugal treatment. Since the test tube fixing block 9 can be inserted at any position in the adjustment slot 6, Different angular velocities can be obtained, so that different soil samples can be centrifuged at different speeds at the same time, thereby improving the practicability of the device. At the same time, the test tube can be quickly taken out through the electric push rod 15 and the support plate 8. After the centrifugation is completed, the side fixing bolt 901 is removed, and the electric push rod 15 is powered to extend it, thereby driving the support plate 8 to rise. The support plate 8 will contact the test tube during the rising process, and lift the test tube and the test tube fixing groove 7 from the adjustment groove 6, so as to facilitate taking, thereby improving the practicability and convenience of the device.

Claims

1. A centrifuge for soil experiments, comprising a base (1), an outer cylinder (13), fixing bolts (901), an extrusion block (12) and a top cover (14), characterized in that: The side wall of the base (1) is provided with a bottom groove (2), a driving motor (3) is fixedly mounted on the inner top of the bottom groove (2), a rotating shaft (4) is movably mounted on the top of the base (1) above the driving motor (3), eight supporting blocks (5) are fixedly mounted on the side wall of the rotating shaft (4) in a circular array and equidistantly distributed, an adjusting groove (6) is penetrated through the top of the supporting block (5), and a fixing groove (7) is provided on the side wall of the supporting block (5), the fixing groove (7) is connected with the adjusting groove (6), a test tube fixing block (9) can be inserted into the inner side of the adjusting groove (6), an outer cylinder (13) is fixedly mounted on the top of the base (1) outside the supporting block (5), and electric push rods (15) are fixedly mounted on the top of the base (1) on both sides of the rotating shaft (4).

2. A soil experiment centrifuge according to claim 1, characterized in that: A test tube slot (10) is provided through the top of the test tube fixing block (9), and a squeeze bolt (11) is threadedly connected through the side wall of the test tube fixing block (9), and one end of the squeeze bolt (11) located inside the test tube slot (10) is fixedly connected to the squeeze block (12).

3. A soil experiment centrifuge according to claim 1, characterized in that: One end of the fixing bolt (901) passes through the fixing groove (7) and is threadedly connected to the test tube fixing block (9).

4. A soil experiment centrifuge according to claim 1, characterized in that: The top end of the electric push rod (15) is fixedly connected to a supporting plate (8), the supporting plate (8) is circular, the outer ring side wall of the supporting plate (8) does not contact the inner wall of the outer cylinder (13), and a circular hole is provided in the center of the supporting plate (8) to accommodate the passage of the rotating shaft (4).

5. A soil experiment centrifuge according to claim 1, characterized in that: The outer end of the transmission shaft of the driving motor (3) is fixedly connected to the upper rotating shaft (4).

6. A soil experiment centrifuge according to claim 1, characterized in that: The top edge of the outer cylinder (13) is movably connected to a top cover (14).

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