Test tube angle adjustable centrifuge

Abstract

The utility model discloses a centrifuge with adjustable test tube angle, which comprises a centrifuge body, a working cavity in the centrifuge body, a rotor provided in the working cavity, a rotating shaft vertically arranged, a hollow structure of the rotating shaft, a screw rod nut movably arranged in the rotating shaft, a screw rod threadedly connected to the screw rod nut, a plurality of strip-shaped through holes uniformly arranged in the rotating shaft side wall and centered on the central shaft, a plurality of first hinged rods uniformly hinged to the outer wall of the screw rod nut and centered on the central shaft, each first hinged rod passing through the corresponding strip-shaped through hole and being hingedly connected to one end of a second hinged rod, the screw rod nut being driven to move up and down by rotating the screw rod, the screw rod nut driving the second hinged rod to rotate through the first hinged rod, the angle between the test tube sleeve and the rotating shaft being adjusted, and the centrifugal angle of the test tube being adjusted according to different reagents and samples, so that the centrifuge has a wide range of applications.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, and in particular to a centrifuge with adjustable test tube angle. Background Technology

[0002] During centrifugation, the test tube needs to be at a specific centrifugation angle, which is the angle between the length of the test tube and the direction of gravity. Different samples or reagents require different centrifugation angles. The core component of a centrifuge is the rotor, which separates different components in a sample or reagent through centrifugal force generated by its high-speed rotation. Existing centrifuge rotors typically have fixed structures and parameters, thus limiting the installation angle of the test tubes. This restricts the ability to adjust the centrifugation angle according to different reagents and samples, limiting its applicability. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a centrifuge with adjustable test tube angle. This solves the technical problem that existing centrifuge rotors usually have fixed structures and parameters, which makes the installation angle of the test tubes fixed and cannot be adjusted according to different reagents and samples, thus limiting the scope of application.

[0004] To achieve the above-mentioned technical objectives, the present invention provides a centrifuge with adjustable test tube angle, comprising a centrifuge body, a working chamber inside the centrifuge body, a rotor inside the working chamber, the rotor including a vertically arranged rotating shaft, and multiple first hinge rods uniformly hinged in a ring around the side wall of the rotating shaft with its central axis as the center, each first hinge rod having a test tube sleeve for placing test tubes installed on it, the ends of the multiple first hinge rods away from the rotating shaft being respectively hinged to one end of multiple second hinge rods, the other ends of the multiple second hinge rods being respectively hinged to the outer wall of a lead screw nut, and a lead screw being threadedly connected inside the lead screw nut.

[0005] Furthermore, the rotating shaft has an internal hollow structure, and the lead screw nut is movably located inside the rotating shaft. The outer wall of the lead screw nut is uniformly provided with several hinge blocks in a ring around its central axis. The side wall of the rotating shaft is uniformly provided with multiple strip-shaped through holes in a ring around its central axis. The end of each hinge block away from the lead screw nut passes through the corresponding strip-shaped through hole and is hinged to the corresponding second hinge rod.

[0006] Furthermore, the two ends of the lead screw are rotatably mounted on the two ends of the rotating shaft via bearings, and the upper end of the lead screw extends out from inside the rotating shaft and is equipped with a handle.

[0007] Furthermore, the second hinge rod is a telescopic rod.

[0008] Furthermore, the second hinge rod includes a threaded sleeve, with threaded rods threadedly connected to both ends of the threaded sleeve. The opposite ends of the two threaded rods extend from inside the threaded sleeve and are respectively hinged to the lead screw nut and the first hinge rod.

[0009] Furthermore, a lock nut is threaded onto the threaded rod.

[0010] Furthermore, an operating hole is provided in the middle of the threaded sleeve.

[0011] Furthermore, the lower end of the shaft is connected to a drive device used to drive its rotation.

[0012] 1. By rotating the lead screw, the lead screw nut can be moved up and down. The lead screw nut can drive the first hinge rod to rotate through the second hinge rod, thereby adjusting the angle between the test tube sleeve and the rotating shaft. This allows the centrifugation angle of the test tube to be adjusted according to different reagents or samples, thus making it widely applicable.

[0013] 2. The second hinge rod is a telescopic rod, and its length can be adjusted. By adjusting the length of the second hinge rod, the first hinge rod can be rotated, so that the centrifugation angle of a test tube can be adjusted individually when the reagents or samples inside the test tubes are different, making the adjustment method more flexible. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the centrifuge structure with adjustable test tube angle according to an embodiment of the present invention; Figure 2 This is a partial structural diagram of a centrifuge with adjustable test tube angle according to an embodiment of the present invention; In the diagram: 1. Centrifuge body; 11. Working chamber; 2. Rotor; 21. Shaft; 211. Strip-shaped through hole; 22. First hinge rod; 23. Test tube sleeve; 24. Second hinge rod; 241. Threaded sleeve; 2411. Operating hole; 242. Threaded rod; 243. Locking nut; 25. Lead screw nut; 251. Hinge block; 26. Lead screw; 27. Handle; 3. Drive device. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] This utility model embodiment provides a centrifuge with adjustable test tube angle, such as... Figure 1-2As shown, the centrifuge includes a centrifuge body 1, inside which is a working chamber 11. Inside the working chamber 11 is a rotor 2. The rotor 2 includes a vertically arranged rotating shaft 21. Multiple first hinge rods 22 are uniformly hinged in a ring around the side wall of the rotating shaft 21, with its central axis as the center. Each first hinge rod 22 is fitted with a test tube sleeve 23 for holding test tubes. The ends of the multiple first hinge rods 22 away from the rotating shaft 21 are respectively hinged to one end of multiple second hinge rods 24. The other ends of the multiple second hinge rods 24 are respectively hinged to the outer wall of a lead screw nut 25. A lead screw 26 is threaded into the lead screw nut 25. Rotating the lead screw 26 moves the lead screw nut 25 up and down. The lead screw nut 25 can drive the first hinge rods 22 to rotate via the second hinge rods 24, adjusting the angle between the test tube sleeve 23 and the rotating shaft 21. Therefore, the centrifugation angle of the test tubes can be adjusted according to different reagents and samples, thus having a wide range of applications.

[0017] It should be noted that the rotating shaft 21 has an internal hollow structure, and the lead screw nut 25 is movably disposed inside the rotating shaft 21. The outer wall of the lead screw nut 25 is provided with a number of hinge blocks 251 evenly arranged in a ring around its central axis. The side wall of the rotating shaft 21 is provided with a number of strip-shaped through holes 211 evenly arranged in a ring around its central axis. The end of each hinge block 251 away from the lead screw nut 25 passes through the corresponding strip-shaped through hole 211 and is hinged to the corresponding second hinge rod 24. At the same time, the two ends of the lead screw 26 are rotatably mounted on the two ends of the rotating shaft 21 through bearings. The upper end of the lead screw 26 extends out from the inside of the rotating shaft 21 and is equipped with a handle 27, which can facilitate the rotation of the lead screw 26.

[0018] It should be noted that the lower end of the rotating shaft 21 is connected to the drive device 3 used to drive its rotation. The drive device 3 is one of an electric motor, a hydraulic motor or a pneumatic motor. The rotating shaft 21 can be driven to rotate by the drive device 3, thereby driving the test tube in the test tube sleeve 23 to rotate and separating the different substances in the reagent or sample in the test tube.

[0019] In this embodiment, the second hinge rod 24 is a telescopic rod, and its length can be adjusted. By adjusting the length of the second hinge rod 24, the first hinge rod 22 can be rotated, thereby allowing the centrifugation angle of a test tube to be adjusted individually when the reagents or samples inside different test tubes are different. The adjustment method is more flexible. The specific structure of the second hinge rod 24 includes a threaded sleeve 241, with threaded rods 242 threadedly connected to both ends of the threaded sleeve 241. The opposite ends of the two threaded rods 242 extend from inside the threaded sleeve 241. The threaded rod 242 extends out and is hinged to the lead screw nut 25 and the first hinge rod 22 respectively. By rotating the threaded sleeve 241, the threaded rod 242 can be extended or retracted into the threaded sleeve 241 to adjust the length of the second hinge rod 24. The operation is convenient. At the same time, in order to facilitate the rotation of the threaded sleeve 241, an operating hole 2411 is provided in the middle of the threaded sleeve 241. In order to prevent the threaded sleeve 241 and the threaded rod 242 from loosening after the length of the first hinge rod 24 is adjusted, a locking nut 243 is threadedly connected to the threaded rod 242.

[0020] Specific principle: When adjusting the centrifugation angle of a test tube, rotating the lead screw 26 causes the lead screw nut 25 to move up and down. The lead screw nut 25 can then drive the first hinge rod 22 to rotate via the second hinge rod 24, adjusting the angle between the test tube sleeve 23 and the rotating shaft 21. This allows for adjustment of the centrifugation angle of the test tube according to different reagents and samples, thus having a wide range of applications. When adjusting the centrifugation angle of a specific test tube, rotating the threaded sleeve 241 on the corresponding second hinge rod 24 causes the threaded rod 242 to extend or retract into the threaded sleeve 241, adjusting the length of the second hinge rod 24. Adjusting the length of the second hinge rod 24 allows the corresponding first hinge rod 22 to rotate, thus allowing for individual adjustment of the centrifugation angle of a specific test tube when the reagents or samples inside are different.

[0021] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A centrifuge with adjustable test tube angle, comprising a centrifuge body (1), wherein a working chamber (11) is provided inside the centrifuge body (1), and a rotor (2) is provided inside the working chamber (11), characterized in that, The rotor (2) includes a vertically arranged shaft (21). The sidewall of the shaft (21) is uniformly hinged with multiple first hinge rods (22) in a ring around its central axis. Each first hinge rod (22) is equipped with a test tube sleeve (23) for placing test tubes. The ends of the multiple first hinge rods (22) away from the shaft (21) are respectively hinged to one end of multiple second hinge rods (24). The other ends of the multiple second hinge rods (24) are respectively hinged to the outer wall of the screw nut (25). The screw nut (25) is internally threaded with a screw (26).

2. The centrifuge with adjustable test tube angle according to claim 1, characterized in that, The rotating shaft (21) has an internal hollow structure. The lead screw nut (25) is movably disposed inside the rotating shaft (21). The outer wall of the lead screw nut (25) is uniformly provided with several hinge blocks (251) in a ring around its central axis. The side wall of the rotating shaft (21) is uniformly provided with several strip-shaped through holes (211) in a ring around its central axis. The end of each hinge block (251) away from the lead screw nut (25) passes through the corresponding strip-shaped through hole (211) and is hinged to the corresponding second hinge rod (24).

3. The centrifuge with adjustable test tube angle according to claim 2, characterized in that, The two ends of the lead screw (26) are respectively rotatably mounted on the two ends of the rotating shaft (21) via bearings. The upper end of the lead screw (26) extends out from inside the rotating shaft (21) and is equipped with a handle (27).

4. The centrifuge with adjustable test tube angle according to claim 1, characterized in that, The second hinge rod (24) is a telescopic rod.

5. The centrifuge with adjustable test tube angle according to claim 4, characterized in that, The second hinge rod (24) includes a threaded sleeve (241), both ends of which are threaded with threaded rods (242). The opposite ends of the two threaded rods (242) extend out from the inside of the threaded sleeve (241) and are respectively hinged to the lead screw nut (25) and the first hinge rod (22).

6. The centrifuge with adjustable test tube angle according to claim 5, characterized in that, A locking nut (243) is threaded onto the threaded rod (242).

7. The centrifuge with adjustable test tube angle according to claim 5, characterized in that, The threaded sleeve (241) has an operating hole (2411) in the middle.

8. The centrifuge with adjustable test tube angle according to claim 1, characterized in that, The lower end of the rotating shaft (21) is connected to the drive device (3) used to drive its rotation.

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