Horizontal rotor of centrifugal machine

Abstract

The utility model relates to the technical field of centrifugal machines, in particular to a centrifugal machine horizontal rotor which comprises a mounting base cylinder, a connecting arm, a storage cylinder, a limiting mechanism and an adjusting mechanism. The connecting arms are connected with the mounting base cylinder; the storage barrels are used for storing centrifugal tubes, are in one-to-one correspondence with the connecting arms and are connected with the connecting arms; a plurality of limiting mechanisms are arranged, the limiting mechanisms are in one-to-one correspondence with the connecting arms, and the limiting mechanisms are all arranged in the connecting arms and are used for limiting the centrifugal tubes; the adjusting mechanism is arranged in the mounting base cylinder, and one end of the adjusting mechanism is in transmission connection with the limiting mechanism. Through the matching arrangement of the limiting mechanism and the adjusting mechanism, the centrifugal tube storage device can be conveniently adapted to centrifugal tubes with different diameters, the adjusting hand wheel is rotated to enable the distance from the limiting block to the inner wall of the opposite side of the storage barrel to be slightly smaller than the diameter of the centrifugal tube, and the placement requirements of different centrifugal tubes can be met without replacing the rotor.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, and particularly relates to a horizontal rotor of a centrifuge. Background Art

[0002] A centrifuge is an instrument for separating substances and belongs to basic laboratory equipment, which is widely used in the fields of life science, medicine, chemistry, environmental protection, etc. The rotor head of the centrifuge is an important component of the centrifuge. The centrifuge separates solid particles from the liquid in the suspension by the centrifugal force generated by the rotation of the rotor.

[0003] Patent authorization announcement number CN210159793U discloses a horizontal rotor of a high-speed centrifuge, which includes a driving device driven by a centrifuge motor to rotate, a wind cover fixed on the driving device, and a wind cover cover covering the wind cover. A horizontal rotor head located inside the wind cover is fixed on the driving device, and a plurality of hanging cups for inserting test tubes are movably sleeved on the horizontal rotor head along the circumference through hanging pins. The utility model has the advantages of small air resistance and good separation effect.

[0004] However, the above technical solution has the following deficiencies: there are various sizes of centrifuge tubes in the laboratory. In order to adapt to the centrifugation work of different centrifuge tubes, it is often necessary to disassemble and replace the horizontal rotor, which is complicated in operation, and there is a risk of hidden cracks caused by bumps and drops during the replacement process. The maintenance and storage of multi-specification horizontal rotors add a burden to the work of the laboratory. Therefore, how to enable a horizontal rotor to adapt to centrifuge tubes of various sizes is a problem to be solved at present. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a horizontal rotor of a centrifuge aiming at the problems existing in the background art.

[0006] The technical solution of the utility model: a horizontal rotor of a centrifuge, comprising:

[0007] An installation base cylinder;

[0008] A plurality of connecting arms, which are connected to the installation base cylinder;

[0009] A plurality of placing cylinders for placing centrifuge tubes, which correspond to the connecting arms one by one, and the placing cylinders are connected to the connecting arms;

[0010] A plurality of limiting mechanisms, which correspond to the connecting arms one by one, and the limiting mechanisms are all arranged inside the connecting arms to limit the centrifuge tubes;

[0011] An adjusting mechanism, which is arranged inside the installation base cylinder to adjust the distance between the limiting mechanism and the placing cylinder, and one end of the adjusting mechanism is in transmission connection with the limiting mechanism.

[0012] Preferably, each limiting mechanism includes a movable box, a movable plate, a limiting block and a limiting spring; the movable box is installed in the connecting arm, the movable box is slidably connected with the connecting arm, the movable plate is arranged in the movable box, the movable plate is slidably connected with the movable box, the limiting spring is located in the movable box, one end of the limiting spring is connected with the movable plate, one end of the limiting block is connected with the movable plate, and the other end of the limiting block penetrates through the movable box and extends outside the movable box.

[0013] Preferably, it further includes a limiting frame, and the limiting frame is connected with the movable box for limiting the movable plate.

[0014] Preferably, the adjusting mechanism includes an adjusting rod, an adjusting handwheel, a bevel gear ring and a telescopic assembly; one end of the adjusting rod is rotatably connected with the installation base cylinder, the other end of the adjusting rod penetrates through the installation base cylinder and extends to the outside of the installation base cylinder, the adjusting handwheel is connected with the adjusting rod, the bevel gear ring is located in the installation base cylinder, and the bevel gear ring is connected with the adjusting rod; multiple groups of telescopic assemblies are provided, one end of the telescopic assembly is in transmission connection with the bevel gear ring, and the other end of the telescopic assembly is in transmission connection with the limiting mechanism.

[0015] Preferably, each group of telescopic assemblies includes a threaded sleeve, a threaded rod and a bevel gear; the threaded sleeve is located in the connecting arm, and one end of the threaded sleeve is connected with the movable box; one end of the threaded rod is threadedly connected with the threaded sleeve, the other end of the threaded rod extends into the installation base cylinder, the bevel gear is located in the installation base cylinder, the bevel gear is connected with the threaded rod, and the bevel gear meshes with the bevel gear ring.

[0016] Preferably, a positioning mechanism for preventing the adjusting rod from accidentally rotating is arranged between the adjusting handwheel and the installation base cylinder. The positioning mechanism includes an installation groove opened on the adjusting handwheel, an elastic member, a positioning block and a positioning groove opened on the installation base cylinder; two installation grooves are opened, and the two installation grooves are symmetrically arranged; two positioning blocks are provided, and the two positioning blocks are respectively slidably connected with the two installation grooves, and one end of the positioning block extends into the positioning groove; two elastic members are provided, one end of the elastic member is connected with the positioning block, and the other end of the elastic member is connected with the installation groove; multiple pairs of positioning grooves are opened, and the multiple pairs of positioning grooves are equidistantly arranged around the adjusting rod.

[0017] Compared with the prior art, the above technical solution of the present utility model has the following beneficial technical effects:

[0018] Through the cooperative setting between the limiting mechanism and the adjusting mechanism of the present utility model, it is convenient to adapt to centrifuge tubes with different diameters. Rotate the adjusting handwheel so that the distance from the limiting block to the inner wall of the opposite side of the placing cylinder is slightly less than the diameter of the centrifuge tube. Without replacing the rotor, the placement requirements for different centrifuge tubes can be met, which can not only reduce the workload of experimental personnel but also improve the experimental efficiency. Through the setting of the positioning mechanism, accidental rotation of the adjusting rod during the centrifugation process is avoided, ensuring the effective limitation of the centrifuge tube. Description of the Drawings

[0019] Figure 1 Stereogram of an embodiment proposed by the present utility model;

[0020] Figure 2 Cross-sectional view of the connection cover in an embodiment proposed by the present utility model;

[0021] Figure 3 The present utility model Figure 2 Partial enlarged view at position A in;

[0022] Figure 4 The present utility model Figure 2 Partial enlarged view at position B in;

[0023] Figure 5 Cross-sectional view of the limiting mechanism in an embodiment proposed by the present utility model;

[0024] Figure 6 Stereogram of the installation base cylinder in an embodiment proposed by the present utility model.

[0025] Reference numerals: 1, installation base cylinder; 2, connecting arm; 3, limiting mechanism; 31, movable box; 32, movable plate; 33, limiting block; 34, limiting spring; 35, limiting frame; 4, adjusting mechanism; 41, adjusting rod; 42, adjusting handwheel; 43, bevel gear ring; 44, telescopic assembly; 441, threaded sleeve; 442, threaded rod; 443, bevel gear; 5, positioning mechanism; 51, installation groove; 52, elastic member; 53, positioning block; 54, positioning groove; 6, storage cylinder. Detailed implementation manners

[0026] Embodiment 1

[0027] As Figures 1-6 shown, a horizontal rotor of a centrifuge proposed by the present utility model includes an installation base cylinder 1, connecting arms 2, a storage cylinder 6, a limiting mechanism 3 and an adjusting mechanism 4;

[0028] A plurality of connecting arms 2 are provided, and the connecting arms 2 are fixedly connected to the installation base cylinder 1;

[0029] A plurality of storage cylinders 6 are provided for placing centrifuge tubes. The storage cylinders 6 correspond to the connecting arms 2 one by one. The storage cylinders 6 are fixedly connected to the ends of the connecting arms 2 far from the installation base cylinder 1, and an elastic rubber pad is fixedly connected to the inner wall of the storage cylinder 6;

[0030] A plurality of limiting mechanisms 3 are provided. The limiting mechanisms 3 correspond to the connecting arms 2 one by one. The limiting mechanisms 3 are all arranged in the connecting arms 2, and the limiting mechanisms 3 cooperate with the storage cylinders 6 to limit the centrifuge tubes;

[0031] The adjusting mechanism 4 is arranged in the installation base cylinder 1 for adjusting the distance between the limiting mechanism 3 and the storage cylinder 6, and one end of the adjusting mechanism 4 is in transmission connection with the limiting mechanism 3.

[0032] Embodiment 2

[0033] like Figures 2-5 As shown, the present invention proposes a centrifuge horizontal rotor. Compared with the first embodiment, the present embodiment further specifically discloses the structure of the limiting mechanism 3; each limiting mechanism 3 includes a movable box 31, a movable plate 32, a limiting block 33, a limiting spring 34 and a limiting frame 35; the movable box 31 is installed in the connecting arm 2, the movable box 31 is slidably connected to the connecting arm 2, the movable plate 32 is arranged in the movable box 31, the movable plate 32 is slidably connected to the movable box 31, and the limiting spring 34 is located in the movable box 31 Inside, one end of the limit spring 34 is fixedly connected to the movable plate 32, the other end of the limit spring 34 is fixedly connected to the inner wall of the movable box 31, one end of the limit block 33 is fixedly connected to the movable plate 32, the other end of the limit block 33 passes through the movable box 31 and extends to the outside of the movable box 31, one end of the limit block 33 extends into the storage tube 6, and the end of the limit block 33 located inside the storage tube 6 is fixedly connected to a rubber pad; the limit frame 35 is fixedly connected to the movable box 31 for limiting the movable plate 32.

[0034] Embodiment 3

[0035] like Figures 1-4 As shown, a centrifuge horizontal rotor proposed by the utility model, compared with the second embodiment, this embodiment further specifically discloses the structure of the adjustment mechanism 4; the adjustment mechanism 4 includes an adjustment rod 41, an adjustment hand wheel 42, a bevel gear ring 43 and a telescopic assembly 44; one end of the adjustment rod 41 is rotatably connected to the bottom of the inner wall of the mounting base cylinder 1, the other end of the adjustment rod 41 penetrates the mounting base cylinder 1 and extends to the outside of the mounting base cylinder 1, the adjustment hand wheel 42 is fixedly connected to the adjustment rod 41, the bevel gear ring 43 is located in the mounting base cylinder 1, and the bevel gear ring 43 is fixedly connected to the adjustment rod 41; the telescopic assembly 44 is provided with multiple groups of telescopic assemblies, One end of 44 is transmission connected to the bevel gear ring 43, and the other end of the telescopic assembly 44 is transmission connected to the limiting mechanism 3; each group of telescopic assemblies 44 includes a threaded sleeve 441, a threaded rod 442 and a bevel gear 443; the threaded sleeve 441 is located in the connecting arm 2, and one end of the threaded sleeve 441 is fixedly connected to the movable box 31; one end of the threaded rod 442 is threadedly connected to the threaded sleeve 441, and the other end of the threaded rod 442 extends into the mounting base cylinder 1, and the bevel gear 443 is located in the mounting base cylinder 1, and the bevel gear 443 is fixedly connected to the threaded rod 442, and the bevel gear 443 and the bevel gear ring 43 are meshed with each other.

[0036] Embodiment 4

[0037] like Figures 2-5As shown in the figure, a horizontal rotor of a centrifuge proposed by the present utility model specifically discloses the structure of the positioning mechanism 5 compared with Embodiment III. A positioning mechanism 5 for preventing the accidental rotation of the adjusting rod 41 is provided between the adjusting handwheel 42 and the mounting base cylinder 1. The positioning mechanism 5 includes a mounting groove 51 opened in the adjusting handwheel 42, an elastic member 52, a positioning block 53, and a positioning groove 54 opened in the mounting base cylinder 1. There are two mounting grooves 51, and the two mounting grooves 51 are symmetrically arranged with respect to the adjusting rod 41. There are two positioning blocks 53, and the two positioning blocks 53 are respectively slidably connected to the two mounting grooves 51, and one end of the positioning block 53 extends into the positioning groove 54. There are two elastic members 52, one end of the elastic member 52 is connected to the positioning block 53, and the other end of the elastic member 52 is connected to the mounting groove 51. There are multiple pairs of positioning grooves 54, and the multiple pairs of positioning grooves 54 are equidistantly arranged around the adjusting rod 41.

[0038] Before use, adjust the distance between the limiting mechanism 3 and the placing cylinder 6 according to the size of the centrifuge tube. During adjustment, rotate the adjusting handwheel 42 to drive the bevel gear ring 43 to rotate together through the adjusting rod 41. The rotation of the bevel gear ring 43 drives the bevel gear 443 and the threaded rod 442 to rotate together through meshing. The rotation of the threaded rod 442 cooperates with the threaded sleeve 441 to change the position of the limiting mechanism 3, so that the distance from the limiting block 33 to the inner wall on the opposite side of the placing cylinder 6 is slightly smaller than the diameter of the centrifuge tube. Loosen the adjusting handwheel 42, and the positioning block 53 is inserted into the positioning groove 54 under the action of the elastic member 52 to limit the adjusting handwheel 42, avoiding the accidental rotation of the adjusting rod 41 during centrifugation. Place the centrifuge tube into the placing cylinder 6, and the limiting block 33 limits and fixes the centrifuge tube under the action of the limiting spring 34.

[0039] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited thereto. Various changes can be made without departing from the gist of the present utility model within the knowledge scope of those skilled in the art to which the present utility model pertains.

Claims

1. A centrifuge horizontal rotor, characterized in that: include: Installing a base cylinder (1); A plurality of connecting arms (2) are provided, and the connecting arms (2) are connected to the mounting base cylinder (1); A storage cylinder (6) is provided with a plurality of centrifuge tubes, the storage cylinders (6) correspond to the connecting arms (2) one by one, and the storage cylinders (6) are connected to the connecting arms (2); A plurality of limiting mechanisms (3) are provided, each limiting mechanism (3) corresponds to the connecting arm (2) in a one-to-one manner, each limiting mechanism (3) is provided in the connecting arm (2), and the limiting mechanism (3) limits the centrifuge tube; The adjusting mechanism (4) is arranged in the mounting base cylinder (1) and is used for adjusting the distance between the limiting mechanism (3) and the storage cylinder (6); one end of the adjusting mechanism (4) is drivingly connected to the limiting mechanism (3).

2. A centrifuge horizontal rotor according to claim 1, characterized in that: Each limiting mechanism (3) comprises a movable box (31), a movable plate (32), a limiting block (33) and a limiting spring (34); the movable box (31) is installed in the connecting arm (2), the movable box (31) is slidably connected to the connecting arm (2), the movable plate (32) is arranged in the movable box (31), the movable plate (32) is slidably connected to the movable box (31), the limiting spring (34) is located in the movable box (31), one end of the limiting spring (34) is connected to the movable plate (32), one end of the limiting block (33) is connected to the movable plate (32), and the other end of the limiting block (33) passes through the movable box (31) and extends to the outside of the movable box (31).

3. A centrifuge horizontal rotor according to claim 2, characterized in that: It also includes a limiting frame (35), which is connected to the movable box (31) and is used to limit the position of the movable plate (32).

4. A centrifuge horizontal rotor according to claim 3, characterized in that: The adjusting mechanism (4) comprises an adjusting rod (41), an adjusting hand wheel (42), a bevel gear ring (43) and a telescopic assembly (44); one end of the adjusting rod (41) is rotatably connected to the mounting base cylinder (1), the other end of the adjusting rod (41) penetrates the mounting base cylinder (1) and extends to the outside of the mounting base cylinder (1), the adjusting hand wheel (42) is connected to the adjusting rod (41), the bevel gear ring (43) is located in the mounting base cylinder (1), and the bevel gear ring (43) is connected to the adjusting rod (41); and the telescopic assembly (44) is provided with a plurality of groups, one end of the telescopic assembly (44) is transmission-connected to the bevel gear ring (43), and the other end of the telescopic assembly (44) is transmission-connected to the limiting mechanism (3).

5. A centrifuge horizontal rotor according to claim 4, characterized in that: Each telescopic assembly (44) comprises a threaded sleeve (441), a threaded rod (442) and a bevel gear (443); the threaded sleeve (441) is located in the connecting arm (2), and one end of the threaded sleeve (441) is connected to the movable box (31); one end of the threaded rod (442) is threadedly connected to the threaded sleeve (441), and the other end of the threaded rod (442) extends into the mounting base cylinder (1); the bevel gear (443) is located in the mounting base cylinder (1), the bevel gear (443) is connected to the threaded rod (442), and the bevel gear (443) and the bevel gear ring (43) are meshed with each other.

6. A centrifuge horizontal rotor according to claim 5, characterized in that: A positioning mechanism (5) for preventing the adjusting rod (41) from accidentally rotating is arranged between the adjusting hand wheel (42) and the mounting base cylinder (1), and the positioning mechanism (5) comprises a mounting groove (51) arranged on the adjusting hand wheel (42), an elastic member (52), a positioning block (53) and a positioning groove (54) arranged on the mounting base cylinder (1); two mounting grooves (51) are arranged, and the two mounting grooves (51) are symmetrically arranged; two positioning blocks (53) are arranged, and the two positioning blocks (53) are respectively slidably connected to the two mounting grooves (51), and one end of the positioning block (53) extends into the positioning groove (54); two elastic members (52) are arranged, and one end of the elastic member (52) is connected to the positioning block (53), and the other end of the elastic member (52) is connected to the mounting groove (51); multiple pairs of positioning grooves (54) are arranged, and the multiple pairs of positioning grooves (54) are equidistantly arranged around the adjusting rod (41).

Images