A centrifugal device for sample pre-treatment

Abstract

The utility model discloses a centrifugal device for sample pretreatment, including organism, the inner wall of organism is fixedly connected with the baffle, and the bottom fixed mounting of organism inner chamber has the motor, the top rotationally connected of baffle has centrifugal box, and the output shaft of motor penetrates baffle and is fixedly connected with centrifugal box, and the inner chamber of centrifugal box is provided with adjusting assembly, and adjusting assembly is used for adjusting the inclination angle of test tube, and the outside of centrifugal box is provided with the reading number component, and the reading number component is connected with adjusting assembly through guide groove.

Description

Technical Field

[0001] This utility model relates to the field of sample processing technology, and specifically to a centrifugation device for sample pretreatment. Background Technology

[0002] Sample pretreatment is a crucial step in chemical analysis, aimed at concentrating trace components and eliminating matrix interference. Its efficiency directly affects the accuracy and speed of detection. The method for sample pretreatment should be selected according to the characteristics of the sample, and the operation should avoid contamination and loss of analytes. Common applications include food testing, environmental monitoring, and biological sample analysis.

[0003] In the process of testing biological samples, centrifugation is often required. Some existing centrifuges have a certain tilt angle in the test tube holder to prevent the sample from sticking to the tube wall during rotation and to keep blood at the bottom of the tube. However, in actual use, different samples require different tilt angles for centrifugation, but existing centrifuge devices cannot adjust the tilt angle, thus reducing the applicability of the device. Therefore, there is an urgent need to design a centrifuge device for sample pretreatment to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a centrifugation device for sample pretreatment to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A centrifuge device for sample pretreatment includes a body, a partition fixedly connected to the inner wall of the body, a motor fixedly installed at the bottom of the inner cavity of the body, a centrifuge chamber rotatably connected above the partition, the output shaft of the motor passing through the partition and fixedly connected to the centrifuge chamber, an adjustment component provided in the inner cavity of the centrifuge chamber for adjusting the tilt angle of test tubes, a guide groove provided on the outer side of the centrifuge chamber, and a reading component provided on the outer side of the centrifuge chamber, the reading component being connected to the adjustment component through the guide groove and used to display the tilt angle of the test tubes, and a cover plate rotatably connected to the top of the centrifuge chamber.

[0006] Preferably, the adjustment assembly includes an adjustment box fixedly connected to the bottom of the centrifuge chamber. The inner cavity of the adjustment box is provided with a drive assembly, and a threaded rod is rotatably connected to the outer side of the adjustment box. One end of the threaded rod passes through the adjustment box and is connected to the drive assembly, and the other end of the threaded rod is rotatably connected to a bearing seat. The bearing seat is fixedly connected to the centrifuge chamber. A threaded block is threadedly connected to the outer side of the threaded rod, and a test tube holder is hinged above the threaded block. A fixing frame is fixedly connected to the outer side of the test tube holder.

[0007] Preferably, the drive assembly includes a mounting base fixedly connected to the inner wall of the regulating box, a drive rod rotatably connected to the outer side of the mounting base, one end of the drive rod passing through the regulating box and fixedly connected to a handle, and the other end of the drive rod fixedly connected to a driving conical wheel, a driven conical wheel meshing with the outer side of the driving conical wheel, a drive shaft fixedly connected to the outer side of the driven conical wheel, and the drive shaft being fixedly connected to a threaded rod on the same side.

[0008] Preferably, the outer side of the adjustment box is provided with a sliding groove, and the inner cavity of the sliding groove is slidably connected with a hinge column. One end of the hinge column is fixedly connected to a limit block, and the other end of the hinge column is hinged to a test tube support.

[0009] Preferably, the reading assembly includes two bearing brackets fixedly connected to the inner wall of the centrifuge, a threaded rod rotatably connected between the two bearing brackets, the threaded rod rotatably passing through the bearing brackets and connected to a transmission assembly, and a threaded seat threadedly connected to the outer side of the threaded rod rotatably. A movable plate is fixedly connected to the outer side of the threaded seat, and a fixed plate is fixedly connected to the outer side of the movable plate through a guide groove. A pointer is fixedly connected to the outer side of the fixed plate, and a scale plate is provided on the outer side of the pointer. The scale plate is fixedly connected to the centrifuge.

[0010] Preferably, the transmission assembly includes a linkage shaft rotatably connected to the top of the threaded rod two. One end of the linkage shaft is fixedly connected to the threaded rod two, and the other end of the linkage shaft is fixedly connected to a winding wheel. A connecting rope is wound around the outside of the winding wheel, and the other end of the connecting rope is fixedly connected to a fixed wheel. The fixed wheel is fixedly connected to a drive rod. The assembly also includes a mounting plate fixedly connected to the inner wall of the centrifuge. A fixed disk is fixedly connected above the mounting plate. A coil spring is provided in the inner cavity of the fixed disk. One end of the coil spring is fixedly connected to the fixed disk, and the other end of the coil spring is fixedly connected to a mounting shaft. The mounting shaft passes through the bearing bracket and is fixedly connected to the threaded rod two.

[0011] Preferably, a guide seat is fixedly connected to the outer side of the movable plate, a guide rod is slidably connected to the outer side of the guide seat, and a fixed seat is fixedly connected to both ends of the guide rod. Both fixed seats are fixedly connected to the inner wall of the centrifuge.

[0012] Preferably, a cover plate is rotatably connected to the top of the machine body.

[0013] In the above technical solution, the centrifugation device for sample pretreatment provided by this utility model has the following advantages: (1) By setting an adjustment component, when the device performs centrifugation on the sample inside the test tube, the device can control the handle to rotate so that the device can drive the threaded block to move on the threaded rod, thereby allowing the device to adjust the tilt angle of the test tube so that the device can perform centrifugation on different samples.

[0014] (2) By setting up a reading component, the device can automatically control the rotation of the screw rod when adjusting the tilt angle of the test tube, so that the device can drive the pointer to move on the scale plate, which makes it easier for the staff to judge the tilt angle of the test tube in the centrifuge chamber according to the pointer on the scale plate, thereby improving the adjustment accuracy of the device and thus improving the centrifugation effect of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of a centrifuge device for sample pretreatment according to an embodiment of the present invention.

[0017] Figure 2 This is a cross-sectional view of the body structure of a centrifuge device for sample pretreatment according to an embodiment of the present invention.

[0018] Figure 3 This is a cross-sectional view of a centrifuge chamber structure provided in an embodiment of a centrifugation device for sample pretreatment according to the present invention.

[0019] Figure 4 This is a schematic diagram of the reading component structure provided in an embodiment of a centrifuge device for sample pretreatment according to the present invention.

[0020] Figure 5 This is a cross-sectional view of the regulating box structure provided in an embodiment of a centrifuge device for sample pretreatment according to the present invention.

[0021] 1. Machine body; 2. Partition plate; 3. Motor; 4. Centrifuge; 5. Adjustment assembly; 51. Adjustment box; 52. Threaded rod one; 53. Bearing seat; 54. Threaded block; 55. Test tube holder; 56. Fixing frame; 57. Slide groove; 58. Hinge column; 59. Limiting block; 510. Mounting base; 511. Driving cone wheel; 512. Driven cone wheel; 513. Drive shaft; 514. Drive rod; 515. Handle; 6. Reading array Components; 61. Fixed seat; 62. Guide rod; 63. Guide seat; 64. Movable plate; 65. Fixed plate; 66. Pointer; 67. Scale plate; 68. Bearing bracket; 69. Threaded rod II; 610. Threaded seat; 612. Linkage shaft; 613. Winding wheel; 614. Fixed wheel; 615. Mounting shaft; 616. Coil spring; 617. Fixed disc; 618. Mounting plate; 7. Guide groove; 8. Cover plate I; 9. Cover plate II. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-5 As shown in the figure, the centrifuge device for sample pretreatment provided by this utility model embodiment includes a body 1, a partition 2 fixedly connected to the inner wall of the body 1, and a motor 3 fixedly installed at the bottom of the inner cavity of the body 1. A centrifuge box 4 is rotatably connected above the partition 2. The output shaft of the motor 3 passes through the partition 2 and is fixedly connected to the centrifuge box 4. An adjustment component 5 is provided in the inner cavity of the centrifuge box 4. The adjustment component 5 is used to adjust the tilt angle of the test tube. A guide groove 7 is provided on the outer side of the centrifuge box 4, and a reading component 6 is provided on the outer side of the centrifuge box 4. The reading component 6 is connected to the adjustment component 5 through the guide groove 7, and the reading component 6 is used to display the tilt angle of the test tube. A cover plate 8 is rotatably connected above the centrifuge box 4. In order to facilitate the use of the device, a second cover plate 9 is rotatably connected above the body 1.

[0024] The adjustment assembly 5 includes an adjustment box 51 fixedly connected to the bottom of the inner cavity of the centrifuge 4. A drive assembly is provided inside the adjustment box 51, and a threaded rod 52 is rotatably connected to the outer side of the adjustment box 51. One end of the threaded rod 52 passes through the adjustment box 51 and is connected to the drive assembly, while the other end of the threaded rod 52 is rotatably connected to a bearing seat 53. The bearing seat 53 is fixedly connected to the centrifuge 4. A threaded block 54 is threadedly connected to the outer side of the threaded rod 52, and a test tube holder 55 is hinged above the threaded block 54. A fixing frame 56 is fixedly connected to the outer side of the test tube holder 55. The drive assembly includes a mounting base 510 fixedly connected to the inner wall of the adjustment box 51. The outer side of the mounting base 510 is rotatably connected to the drive assembly. A drive rod 514 is dynamically connected. One end of the drive rod 514 passes through the adjustment box 51 and is fixedly connected to a handle 515. The other end of the drive rod 514 is fixedly connected to a driving cone wheel 511. A driven cone wheel 512 meshes with the outer side of the driving cone wheel 511. A drive shaft 513 is fixedly connected to the outer side of the driven cone wheel 512. The drive shaft 513 is fixedly connected to a threaded rod 52 on the same side. In order to facilitate the adjustment of the angle of the test tube holder 55, a sliding groove 57 is provided on the outer side of the adjustment box 51. A hinge post 58 is slidably connected to the inner cavity of the sliding groove 57. One end of the hinge post 58 is fixedly connected to a limit block 59, and the other end of the hinge post 58 is hinged to the test tube holder 55.

[0025] By setting the adjustment component 5, when the device is centrifuging the sample inside the test tube, the handle 515 can be rotated to drive the threaded block 54 to move on the threaded rod 52, thereby allowing the device to adjust the tilt angle of the test tube so that it can centrifuge different samples.

[0026] The reading assembly 6 includes two bearing brackets 68 fixedly connected to the inner wall of the centrifuge 4. A threaded rod 69 is rotatably connected between the two bearing brackets 68. The threaded rod 69 passes through the bearing brackets 68 and is connected to a transmission assembly. A threaded seat 610 is threadedly connected to the outer side of the threaded rod 69. A movable plate 64 is fixedly connected to the outer side of the threaded seat 610. A fixed plate 65 is fixedly connected to the outer side of the movable plate 64 through a guide groove 7. A pointer 66 is fixedly connected to the outer side of the fixed plate 65. A scale plate 67 is provided on the outer side of the pointer 66 and is fixedly connected to the centrifuge 4. The transmission assembly includes a linkage shaft 612 rotatably connected to the top of the threaded rod 69. One end of the linkage shaft 612 is fixedly connected to the threaded rod 69, and the other end of the linkage shaft 612 is fixedly connected to a winding wheel 613. A connecting thread is wound around the outer side of the winding wheel 613. The system includes a rope, with a fixed wheel 614 fixedly connected to the other end of the rope. The fixed wheel 614 is fixedly connected to the drive rod 514. The system also includes a mounting plate 618 fixedly connected to the inner wall of the centrifuge 4. A fixed disk 617 is fixedly connected above the mounting plate 618. A coil spring 616 is provided in the inner cavity of the fixed disk 617. One end of the coil spring 616 is fixedly connected to the fixed disk 617, and the other end of the coil spring 616 is fixedly connected to a mounting shaft 615. The mounting shaft 615 passes through the bearing bracket 68 and is fixedly connected to the threaded rod 69. In order to prevent the threaded seat 610 from rotating with the threaded rod 69, a guide seat 63 is fixedly connected to the outer side of the movable plate 64. A guide rod 62 is slidably connected to the outer side of the guide seat 63. Both ends of the guide rod 62 are fixedly connected to fixed seats 61. Both fixed seats 61 are fixedly connected to the inner wall of the centrifuge 4.

[0027] By setting the reading component 6, the device can automatically control the rotation of the threaded rod 69 when adjusting the tilt angle of the test tube, thereby enabling the device to move the pointer 66 on the scale plate 67. This allows the operator to determine the tilt angle of the test tube inside the centrifuge 4 based on the direction of the pointer 66 on the scale plate 67, thus improving the adjustment accuracy of the device and improving the centrifugation effect.

[0028] The working principle of this utility model: When the tilt angle of the test tube needs to be adjusted, the test tube is placed in the inner cavity of the fixed frame 56, and then the handle 515 is rotated. This causes the handle 515 to drive the drive rod 514, which is fixedly connected to it, to rotate. When the drive rod 514 rotates, it drives the active cone wheel 511, which is fixedly connected to it, to rotate. This causes the active cone wheel 511 to drive the driven cone wheel 512, which is meshed with it, to rotate. When the driven cone wheel 512 rotates, it drives the drive shaft 513, which is fixedly connected to it, to rotate. This causes the drive shaft 513 to drive the threaded rod 52, which is fixedly connected to it, to rotate. When the threaded rod 52 rotates, it drives the threaded block 54, which is threaded to it, to move. When the threaded block 54 moves, it drives the test tube support 55, which is hinged to it, to move synchronously. Since the test tube support 55 is hinged to the hinge post 58, the tilt of the test tube in the fixed frame 56 can be adjusted when the threaded block 54 moves. When the drive rod 514 rotates, it drives the fixed wheel 614, which is fixedly connected to it, to rotate. This causes the fixed wheel 614 to drive the winding wheel 613 to rotate via the connecting rope. When the winding wheel 613 rotates, it drives the linkage shaft 612, which is fixedly connected to it, to rotate. This causes the linkage shaft 612 to drive the threaded rod 69, which is fixedly connected to it, to rotate. When the threaded rod 69 rotates, it drives the threaded seat 610, which is threadedly connected to it, to move. This causes the threaded seat 610 to drive the movable plate 64, which is fixedly connected to it, to move synchronously. When the movable plate 64 moves, it drives the fixed plate 65, which is fixedly connected to it, to move. This causes the fixed plate 65 to drive the pointer 66, which is fixedly connected to it, to move synchronously. The operator can then determine the tilt angle of the test tube by observing the direction of the pointer 66 on the scale plate 67.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A centrifuge device for sample pretreatment, comprising a body (1), characterized in that, A partition (2) is fixedly connected to the inner wall of the machine body (1), and a motor (3) is fixedly installed at the bottom of the inner cavity of the machine body (1). A centrifuge box (4) is rotatably connected above the partition (2). The output shaft of the motor (3) passes through the partition (2) and is fixedly connected to the centrifuge box (4). An adjustment component (5) is provided in the inner cavity of the centrifuge box (4). The adjustment component (5) is used to adjust the tilt angle of the test tube. A guide groove (7) is provided on the outer side of the centrifuge box (4), and a reading component (6) is provided on the outer side of the centrifuge box (4). The reading component (6) is connected to the adjustment component (5) through the guide groove (7), and the reading component (6) is used to display the tilt angle of the test tube. A cover plate (8) is rotatably connected above the centrifuge box (4).

2. The centrifuge device for sample pretreatment according to claim 1, characterized in that, The adjustment assembly (5) includes an adjustment box (51) fixedly connected to the bottom of the inner cavity of the centrifuge (4). The inner cavity of the adjustment box (51) is provided with a drive assembly, and a threaded rod (52) is rotatably connected to the outer side of the adjustment box (51). One end of the threaded rod (52) passes through the adjustment box (51) and is connected to the drive assembly. The other end of the threaded rod (52) is rotatably connected to a bearing seat (53). The bearing seat (53) is fixedly connected to the centrifuge (4). A threaded block (54) is threadedly connected to the outer side of the threaded rod (52). A test tube holder (55) is hinged above the threaded block (54). A fixing frame (56) is fixedly connected to the outer side of the test tube holder (55).

3. A centrifuge device for sample pretreatment according to claim 2, characterized in that, The drive assembly includes a mounting base (510) fixedly connected to the inner wall of the regulating box (51). A drive rod (514) is rotatably connected to the outer side of the mounting base (510). One end of the drive rod (514) passes through the regulating box (51) and is fixedly connected to a handle (515). The other end of the drive rod (514) is fixedly connected to a driving cone wheel (511). A driven cone wheel (512) meshes with the outer side of the driving cone wheel (511). A drive shaft (513) is fixedly connected to the outer side of the driven cone wheel (512). The drive shaft (513) is fixedly connected to a threaded rod (52) on the same side.

4. A centrifuge device for sample pretreatment according to claim 2, characterized in that, The outer side of the regulating box (51) is provided with a sliding groove (57), and the inner cavity of the sliding groove (57) is slidably connected with a hinge column (58). One end of the hinge column (58) is fixedly connected to a limit block (59), and the other end of the hinge column (58) is hinged to the test tube support (55).

5. A centrifuge device for sample pretreatment according to claim 1, characterized in that, The reading assembly (6) includes two bearing brackets (68) fixedly connected to the inner wall of the centrifuge (4). A threaded rod (69) is rotatably connected between the two bearing brackets (68). The threaded rod (69) passes through the bearing bracket (68) and is connected to a transmission assembly. A threaded seat (610) is threadedly connected to the outer side of the threaded rod (69). A movable plate (64) is fixedly connected to the outer side of the threaded seat (610). A fixed plate (65) is fixedly connected to the outer side of the movable plate (64) through a guide groove (7). A pointer (66) is fixedly connected to the outer side of the fixed plate (65). A scale plate (67) is provided on the outer side of the pointer (66). The scale plate (67) is fixedly connected to the centrifuge (4).

6. A centrifuge apparatus for sample pretreatment according to claim 5, characterized in that, The transmission assembly includes a linkage shaft (612) rotatably connected to the top of the threaded rod (69). One end of the linkage shaft (612) is fixedly connected to the threaded rod (69), and the other end of the linkage shaft (612) is fixedly connected to a winding wheel (613). A connecting rope is wound around the outside of the winding wheel (613), and the other end of the connecting rope is fixedly connected to a fixed wheel (614). The fixed wheel (614) is fixedly connected to the drive rod (514). The assembly also includes a mounting plate (618) fixedly connected to the inner wall of the centrifuge (4). A fixed disk (617) is fixedly connected above the mounting plate (618). A coil spring (616) is provided in the inner cavity of the fixed disk (617). One end of the coil spring (616) is fixedly connected to the fixed disk (617), and the other end of the coil spring (616) is fixedly connected to a mounting shaft (615). The mounting shaft (615) passes through the bearing bracket (68) and is fixedly connected to the threaded rod (69).

7. A centrifuge apparatus for sample pretreatment according to claim 5, characterized in that, The outer side of the movable plate (64) is fixedly connected to a guide seat (63), and the outer side of the guide seat (63) is slidably connected to a guide rod (62). Both ends of the guide rod (62) are fixedly connected to a fixing seat (61), and both fixing seats (61) are fixedly connected to the inner wall of the centrifuge (4).

8. A centrifuge apparatus for sample pretreatment according to claim 1, characterized in that, The upper part of the body (1) is rotatably connected to a cover plate (9).

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