Multi-station centrifugal machine for clinical examination

Abstract

The utility model discloses a multi-station centrifugal machine for clinical examination, which comprises a centrifugal machine base and a rotating seat arranged on the centrifugal machine base, a driving motor is arranged in the centrifugal machine base, and the output end of the driving motor is in transmission connection with the bottom of the rotating seat. A plurality of sliding blocks are slidably assembled at the top of the rotating seat, the sliding tracks of the sliding blocks all point to the rotating center of the rotating seat, test tube seats used for placing centrifugal test tubes are arranged on the sliding blocks, and an adjusting assembly is arranged in the rotating seat; the adjusting assembly is used for adjusting the distance between each sliding block and the rotating center of the rotating base. According to the utility model, the adjusting assembly drives the sliding block to slide in the sliding groove so as to adjust the distance between the sliding block and the center of the rotating seat, so that the centrifugal radius is changed, and the centrifugal force borne by the centrifugal test tube in the test tube seat is changed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a multi-station centrifuge for clinical testing. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate liquids from solid particles or components in a mixture of liquids and liquids. Centrifuges are mainly used to separate solid particles from liquids in suspensions, or to separate two immiscible liquids of different densities in emulsions (e.g., separating cream from milk); they can also be used to remove liquids from wet solids, such as using a washing machine to spin dry wet clothes; special ultra-speed tubular separators can also separate gas mixtures of different densities; some sedimentation centrifuges can also classify solid particles by density or size, taking advantage of the fact that solid particles of different densities or sizes have different sedimentation speeds in liquids.

[0003] At present, the multi-station centrifuge used in clinical practice has multiple test tube holders on the rotating seat of the centrifuge to centrifuge multiple centrifugal samples at the same time. However, the distance between the test tube holder and the rotation center of the rotating seat is usually fixed, and the centrifugal radius of the centrifugal sample cannot be adjusted. When different items require different levels of centrifugal force for centrifugal separation, it cannot meet the needs of centrifugal use. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a multi-station centrifuge for clinical testing, which is convenient for centrifugal treatment of centrifugal test tubes at different centrifugal radii.

[0005] The utility model provides a multi-station centrifuge for clinical testing, comprising a centrifuge base and a rotating seat arranged on the centrifuge base, wherein a driving motor is arranged in the centrifuge base, and the output end of the driving motor is transmission-connected with the bottom of the rotating seat, and the top of the rotating seat is slidably equipped with a plurality of sliders, and the sliding tracks of the plurality of sliders all point to the rotation center of the rotating seat, and a test tube seat for placing a centrifugal test tube is arranged on the slider, and an adjusting component is arranged in the rotating seat, and the adjusting component is used to adjust the distance between each of the sliders and the rotation center of the rotating seat.

[0006] Furthermore, the rotating seat is a hollow circular box-shaped structure.

[0007] Furthermore, the rotating seat is provided with a plurality of slide grooves, the plurality of slide grooves are communicated with the interior of the rotating seat, and the plurality of sliders are slidably connected in the plurality of slide grooves respectively.

[0008] Furthermore, the adjustment assembly includes a rotating plate, an adjustment block and a rotating driver. The rotating plate is rotatably connected to the rotating seat. A spiral slide rail is provided on the upper end of the rotating plate. There are several adjustment blocks. Several of the adjustment blocks are respectively fixed to the lower ends of several sliding blocks. Several of the lower ends of the adjustment blocks are provided with spiral grooves. Several of the adjustment blocks are slidably connected to the rotating plate through their respective spiral grooves. The rotating driver is assembled and connected to the rotating seat to drive the rotating plate to rotate.

[0009] Furthermore, a plurality of teeth are provided at the lower end of the rotating plate and are distributed in a crown shape around the rotation center of the rotating plate. The rotating driver includes a servo motor and a driving gear. The servo motor is fixedly connected to the rotating seat. The driving gear is fixedly connected to the output end of the servo motor and meshes with the plurality of teeth.

[0010] Furthermore, the longitudinal section of the slide groove is in a cross shape, and the longitudinal section of the slider is in a cross shape matching the slide groove.

[0011] Furthermore, the test tube stand includes a support frame and a cartridge seat, the support frame is fixedly connected to the slide block, and the cartridge seat is fixedly connected to the support frame.

[0012] Furthermore, each of the test tube holders has two cartridge seats, and the two cartridge seats are fixedly connected by a connecting rod.

[0013] Furthermore, the cartridge seat is provided with a threaded hole which is arranged to penetrate transversely, and a fastening bolt is threadedly connected to the threaded hole. The fastening bolt is used to cooperate with the cartridge seat to fix the test tube.

[0014] Furthermore, a control panel is provided on the outer surface of the centrifuge base, and the drive motor and the servo motor are both electrically connected to the control panel.

[0015] The utility model discloses a multi-station centrifuge for clinical testing. A slide groove is arranged on the top of a rotating seat, a slider is arranged in the slide groove, and an adjusting block is arranged at the bottom of the slider. After the adjusting block is abutted against a rotating plate, a servo motor is used to drive the rotating plate to rotate clockwise or counterclockwise. Due to the spiral connection between the spiral groove and the spiral groove on the spiral plate, the adjusting block can be driven to move outward or inward, thereby making the slider slide. At this time, the centrifugal radius of the test tube seat changes, thereby changing the size of the centrifugal force on the centrifugal test tube in the test tube seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0017] Figure 2 It is a partial structural schematic diagram of a rotating seat in one embodiment of the utility model.

[0018] Figure 3 It is a structural schematic diagram of a slider and an adjusting block in one embodiment of the utility model.

[0019] The meanings of the symbols in the accompanying drawings are as follows: centrifuge base 1; rotating base 2; slide groove 21; slider 3; test tube base 4; support frame 41; cylinder base 42; threaded hole 421; connecting rod 43; adjustment assembly 5; rotating plate 51; spiral slide rail 511; teeth 512; adjustment block 52; spiral groove 521; servo motor 6; driving gear 61; fastening bolt 7; control panel 8. DETAILED DESCRIPTION

[0020] See also Figure 1 , Figure 2 as well as Figure 3 The utility model is a multi-station centrifuge for clinical testing, comprising a centrifuge base 1 and a rotating seat 2 arranged on the centrifuge base 1. A driving motor (not shown) is arranged in the centrifuge base 1, and the output end of the driving motor is connected to the bottom of the rotating seat 2 by transmission. The top of the rotating seat 2 is slidably equipped with a plurality of sliders 3, and the sliding tracks of the plurality of sliders 3 all point to the rotation center of the rotating seat 2. A test tube seat 4 for placing a centrifugal test tube is arranged on the slider 3, and an adjustment component 5 is arranged in the rotating seat 2. The adjustment component 5 is used to adjust the distance between each slider 3 and the rotation center of the rotating seat 2. After the centrifugal test tube is placed in the test tube seat 4, the slider 3 is driven to slide by the adjustment component 5 to adjust the distance between the slider 3 and the rotation center of the rotating seat 2, thereby changing the centrifugal radius of the centrifugal test tube in the test tube seat 4, thereby changing the magnitude of the centrifugal force on the centrifugal test tube.

[0021] When in use, first put the centrifugal test tube into the test tube holder 4. In this embodiment, the test tube holder 4 includes a support frame 41 and a cartridge holder 42. The support frame 41 is fixedly connected to the slider 3, and the cartridge holder 42 is fixedly connected to the support frame 41. In order to prevent the centrifugal test tube from being thrown out of the cartridge holder 42 when the rotating seat 2 rotates, a threaded hole is provided on the cartridge holder 42, and a fastening bolt 7 is connected to the threaded hole in the threaded hole. The fastening bolt 7 is used to cooperate with the cartridge holder 42 to fix the test tube. After the centrifugal test tube is placed in the cartridge holder 42, the fastening bolt 7 can be twisted to lock the centrifugal test tube, thereby preventing the centrifugal test tube from being thrown out of the cartridge holder 42 when the rotating seat 2 rotates. In order to simultaneously centrifuge multiple centrifugal test tubes, two cartridge holders 42 are provided on each test tube holder 4, and the two cartridge holders 42 are fixedly connected by a connecting rod 43. This design can simultaneously centrifuge multiple centrifugal test tubes, and the efficiency is higher.

[0022] After the centrifugal test tube is placed, the size of the centrifugal force is adjusted by sliding the slider 3 according to the requirements of centrifugal separation. At this time, the size of the centrifugal force is adjusted by sliding the slider 3 to adjust the distance between the slider 3 and the rotation center of the rotating seat 2. In this embodiment, a plurality of chutes 21 are provided in the rotating seat 2, and the plurality of chutes 21 are all connected to the inside of the rotating seat 5, and the plurality of sliders 3 are respectively slidably connected in the plurality of chutes 21. In order to make the sliding of the slider 3 in the chutes 21 more stable, the longitudinal section of the chutes 21 is in the shape of a "cross", and the longitudinal section of the slider 3 is in the shape of a "cross" that matches the chutes 21. From this structure, it can be understood that protrusions are formed on both sides of the slider 3, and the protruding parts are clamped in the recesses on both sides of the chutes 21, so that the slider 3 can slide in the chutes 21 with better balance.

[0023] In order to drive the slider 3 to slide, specifically, the adjustment assembly 5 includes a rotating plate 51, an adjustment block 52 and a rotation driver, and the rotating plate 51 is rotatably connected to the rotating seat 2. A spiral slide rail 511 is provided at the upper end of the rotating plate 51, and the number of the adjustment blocks 52 is several. The several adjustment blocks 52 are respectively fixed to the lower ends of the several sliders 3, and the lower ends of the several adjustment blocks 52 are provided with spiral grooves 521. The several adjustment blocks 52 are slidably connected to the rotating plate 51 through their respective spiral grooves 521, and the rotation driver is assembled and connected to the rotating seat 2 to drive the rotating plate 51 to rotate. Since the adjustment block 52 is clamped with the rotating plate 51 through the spiral groove 521 and the spiral slide rail 511, and the slider 3 is clamped in the slide groove 21 at the same time, when the rotating plate 51 rotates, the slider 3 will be forced to slide in the slide groove 21. In this embodiment, the rotating seat 5 is a hollow cylindrical structure, and the rotating plate 51 is rotatably connected to the rotating seat 2, so that the rotating plate 51 can also rotate when the rotating seat 2 is stationary.

[0024] In order to rotate the rotating plate 51, a plurality of teeth 512 are arranged at the lower end of the rotating plate 51 in a crown-shaped distribution around the rotation center of the rotating plate 51. The rotating driver includes a servo motor 6 and a driving gear 61. The servo motor 6 is fixedly connected to the rotating seat 2. The driving gear 61 is fixedly connected to the output end of the servo motor 6 and meshes with the plurality of teeth 512. Since the teeth 512 are crown-shapedly distributed around the rotation center of the rotating plate 51, the bottom surface of the rotating plate 51 is similar to a crown-shaped gear structure. Since the driving gear 61 meshes with the teeth 512, when the servo motor 6 is working, the driving gear 61 can drive the rotating plate 51 to rotate. It should be noted that the servo motor 6 can drive the rotating plate 51 to rotate clockwise or counterclockwise, so that the spiral groove 521 will slide forward and reverse along the spiral slide rail 511. Since the rotating seat 2 remains fixed, when the rotating plate 51 rotates, the spiral groove 521 moves along the spiral slide rail 511, so that the slider 3 can slide in the slide groove 21, and the spacing between the slider 3 and the rotating seat 2 can change, so that the centrifugal force on the centrifugal test tube in the cylinder seat 4 can change. After the adjustment is completed, the rotating seat 2 is driven to rotate by the driving motor in the centrifuge base 1, so that centrifugal separation can be performed. For ease of operation, a control panel 8 is provided on the outer surface of the centrifuge base 1, and the driving motor and the servo motor 6 are electrically connected to the control panel 8. The operator can control the driving motor and the servo motor 6 through the control panel 8, which is more convenient to use.

[0025] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the utility model.

Claims

1. A multi-station centrifuge for clinical testing, comprising a centrifuge base and a rotating seat arranged on the centrifuge base, wherein a drive motor is arranged in the centrifuge base, and an output end of the drive motor is transmission-connected to the bottom of the rotating seat, characterized in that: The top of the rotating seat is slidably equipped with a plurality of sliders, the sliding tracks of which point to the rotation center of the rotating seat, the slider is provided with a test tube seat for placing a centrifugal test tube, and an adjustment component is provided in the rotating seat, and the adjustment component is used to adjust the distance between each of the sliders and the rotation center of the rotating seat.

2. A multi-station centrifuge for clinical testing according to claim 1, characterized in that: The rotating seat is a hollow round box structure.

3. A multi-station centrifuge for clinical testing according to claim 2, characterized in that: The rotating seat is provided with a plurality of slide grooves, the plurality of slide grooves are communicated with the interior of the rotating seat, and the plurality of sliding blocks are respectively slidably connected in the plurality of slide grooves.

4. A multi-station centrifuge for clinical testing according to claim 3, characterized in that: The adjusting assembly includes a rotating plate, an adjusting block and a rotating driver. The rotating plate is rotatably connected to the rotating seat. A spiral slide rail is provided at the upper end of the rotating plate. There are several adjusting blocks. Several adjusting blocks are respectively fixed to the lower ends of several sliding blocks. A spiral groove is provided at the lower ends of several adjusting blocks. Several adjusting blocks are slidably connected to the rotating plate through their own spiral grooves. The rotating driver is assembled and connected to the rotating seat to drive the rotating plate to rotate.

5. A multi-station centrifuge for clinical testing according to claim 4, characterized in that: The lower end of the rotating plate is provided with a plurality of teeth distributed in a crown shape around the rotation center of the rotating plate. The rotating driver includes a servo motor and a driving gear. The servo motor is fixedly connected to the rotating seat. The driving gear is fixedly connected to the output end of the servo motor and meshes with the plurality of teeth.

6. A multi-station centrifuge for clinical testing according to claim 3, characterized in that: The longitudinal section of the slide groove is in a "cross" shape, and the longitudinal section of the slider is in a "cross" shape matching the slide groove.

7. A multi-station centrifuge for clinical testing according to any one of claims 1 to 6, characterized in that: The test tube stand comprises a support frame and a cartridge seat, wherein the support frame is fixedly connected to the slide block, and the cartridge seat is fixedly connected to the support frame.

8. A multi-station centrifuge for clinical testing according to claim 7, characterized in that: Each of the test tube seats has two cartridge seats, and the two cartridge seats are fixedly connected by a connecting rod.

9. A multi-station centrifuge for clinical testing according to claim 7, characterized in that: The cartridge seat is provided with a threaded hole which is arranged to penetrate horizontally, and a fastening bolt is threadedly connected in the threaded hole. The fastening bolt is used to cooperate with the cartridge seat to fix the test tube.

10. A multi-station centrifuge for clinical testing according to claim 5, characterized in that: A control panel is disposed on the outer surface of the centrifuge base, and the drive motor and the servo motor are both electrically connected to the control panel.

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