CN209254996U - A medical centrifuge - Google Patents

Abstract

The utility model discloses a medical centrifuge, which comprises a box body. The inner cavity of the box is divided into an upper chamber and a lower chamber by a partition plate, and the upper chamber and the lower chamber are respectively provided with the same structure. Rotating disk 1 and rotating disk 2, the center position of the bottom end of the rotating disk 1 is inherently on the rotating shaft 1, and the rotating shaft 2 fixedly connected with the rotating disk 2 is pierced at the center position of the rotating disk 2, and the rotating shaft The other end of the second is connected to the first rotating shaft through a clutch, and a rotary motor is fixed on the side of the isolation plate close to the first rotating shaft, and the output shaft of the rotating motor is sequentially fixed with the first driving gear and the second driving gear along the extension direction of the shaft body. , the transmission shaft is fixed on the isolation plate between the rotating shaft one and the rotating motor. The utility model can not only perform centrifugal layering treatment on a large amount of the same sample liquid at one time, but also apply to two kinds of sample liquids that require different centrifugal forces. The sample liquid is subjected to centrifugation and stratification, which improves the centrifugation efficiency.

Description

A medical centrifuge

technical field

The utility model relates to the technical field of medical equipment, in particular to a medical centrifuge.

Background technique

Centrifugal devices are generally used when conducting medical experiments or disease diagnosis. Human blood is called whole blood after anticoagulant treatment. Floor. At the same time, it is possible to use a centrifuge device in the urine test. When testing in a hospital, it is a more conventional method to use centrifugation for stratification. Different centrifugal forces are required to accomplish this.

However, the existing medical centrifuges can only centrifugally stratify the same liquid, and cannot simultaneously perform centrifugal stratification on two different sample liquids at the same time. If two different sample liquids are centrifugally stratified, it is necessary to sequentially The two sample liquids are processed in layers, thereby reducing the centrifugation efficiency. In addition, when there are many patients to be diagnosed, the amount of sample liquid to be tested is large, and because the sample liquid processed by the centrifuge is limited at one time, resulting in The inspection efficiency is low.

Utility model content

The purpose of this utility model is to provide a medical centrifuge to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a medical centrifuge, including a box body, the inner cavity of the box is divided into an upper chamber and a lower chamber by a partition plate, and the upper chamber and the lower chamber The first and second rotating disks of the same structure are correspondingly arranged in the chamber, and the upper chamber and the lower chamber are respectively provided with annular windows at the positions corresponding to the first rotating disk and the second rotating disk, and the rotating disk The side walls of the first and rotating disk two are vertically provided with placement slots at equal intervals, and a placement slot door is hinged on the placement slot, and a locking mechanism is provided on the placement slot door. The center position of the bottom end of the first rotating disk is inherently Rotating shaft one, and the other end of rotating shaft one is fixed on the isolation plate through a bearing. The rotating shaft one passes through the bearing and extends into the lower chamber. connected rotating shaft two, and one end of rotating shaft two is fixed at the bottom of the box through a bearing, and the other end of said rotating shaft two is connected with rotating shaft one through a clutch, corresponding to rotating shaft one and Rotating gear 1 and rotating gear 2 are fixed on the rotating shaft 2, and the diameter of rotating gear 1 is larger than the diameter of rotating gear 2, and a rotating motor is fixed on the side of the separating plate close to rotating shaft 1, and the output shaft of the rotating motor is along the Drive gear 1 and drive gear 2 are sequentially fixed in the extension direction of the shaft body, and a transmission shaft is fixed on the isolation plate between the rotation shaft 1 and the rotating motor. The driven gear 1 meshed with the gear 1 and the driven gear 2 meshed with the rotating gear 2, and the inner wall of the driven gear 2 is slidingly connected with the outer wall of the transmission shaft, and the driven gear 1 and the driven gear 2 respectively correspond to the driving gear. Gear 1 and driving gear 2 are meshed and connected, and a mounting plate is fixed on the transmission shaft between driven gear 1 and driven gear 2. The mounting plate is provided with hydraulic cylinders at equal intervals along the transmission shaft, and the piston of the hydraulic cylinder The top of the rod is connected to the second driven gear. The second driven gear includes a gear outer ring and a gear inner ring, and the gear outer ring is rotatably connected to the gear inner ring. The gear inner ring is connected to the top end of the piston rod of the hydraulic cylinder.

Preferably, the outer wall of the box is provided with a controller, and the controller is electrically connected with the clutch, the rotating motor and the hydraulic cylinder.

Preferably, a limiting groove is opened at the bottom end of the placing groove, and the limiting pressure block is fixed by a spring at the bottom end of the placing groove.

Preferably, the limiting pressure block is made of rubber material.

Preferably, the locking mechanism includes a fixing buckle fixed on the placement slot door and a fixing block arranged on the first rotating disk or the second rotating disk and matched with the fixing buckle.

Preferably, the fixed block is rotatably connected with the first rotating disk or the second rotating disk.

Compared with the prior art, the beneficial effect of the utility model is: the utility model can not only carry out centrifugal layering treatment on a large amount of the same sample liquid at one time, but also drive the driven gear along the transmission shaft through the piston rod on the hydraulic cylinder. Move until the driven gear 2 meshes with the rotating gear 2 and the driving gear 2, and then start the rotating motor to make the rotating disc 1 and the rotating disc 2 rotate at the same time. Since the diameter of the rotating gear 1 is greater than the diameter of the rotating gear 2, the rotation The rotation speed of disk 1 is lower than that of disk 2, so the centrifugal force of disk 1 is smaller than that of disk 2, which makes this centrifuge suitable for centrifugal stratification of two sample liquids that require different centrifugal forces, thereby improving the centrifugal efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the internal structure of the utility model;

Fig. 3 is the structural representation of a certain moment of the working state of the utility model;

Fig. 4 is the structural representation of driven gear two;

Fig. 5 is the structural representation of placing groove;

Fig. 6 is a partial enlarged view of Fig. 1 (a structural schematic diagram of the locking mechanism).

In the figure: 1. Box body; 2. Isolation plate; 3. Rotary disk one; 4. Rotary disk two; 5. Ring window; 6. Placement slot; 7. Placement slot door; 8. Rotation shaft one; Axle two; 10, clutch; 11, rotating gear one; 12, rotating gear two; 13, rotating motor; 14, driving gear one; 15, driving gear two; 16, drive shaft; 17, driven gear one; 18, Driven gear two; 18a, gear outer ring; 18b, gear inner ring; 19, mounting plate; 20, controller; 21, limit groove; 22, limit pressure block; 23, fixed ring buckle; 24, fixed card piece.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3, an embodiment provided by the utility model: a medical centrifuge, including a box body 1, the outer wall of the box body 1 is provided with a controller 20, and the controller 20 is connected with the clutch 10, the rotating motor 13 and the hydraulic cylinder are electrically connected, and the inner cavity of the box body 1 is divided into an upper chamber and a lower chamber through the isolation plate 2, and the upper chamber and the lower chamber are respectively provided with a rotating disk with the same structure. 3 and two rotating disks 4, the upper chamber and the lower chamber respectively corresponding to the positions of the rotating disk one 3 and the rotating disk two 4 are provided with an annular window 5, and the rotating disk one 3 and the rotating disk two 4 The side wall of the side wall is equally spaced and vertically provided with placement grooves 6, and the bottom end of the placement groove 6 is provided with a limit groove 21, and the bottom end of the placement groove 6 is fixed with a spring to fix the limit pressure block 22, which is used to clamp the test tube and prevent the centrifuge from centrifuging. In the process, the test tube is loose, and the limit pressing block 22 is made of rubber material to prevent the limit pressing block 22 from damaging the test tube, and the placement slot 6 is hinged with a placement slot door 7, and the placement slot door 7 is provided with a lock Tightening mechanism, the locking mechanism includes a fixed buckle 23 fixed on the placement slot door 7 and a fixed block 24 that is matched with the fixed buckle 23 and is arranged on the rotating disk one 3 or the rotating disk two 4. The fixed block 24 is rotatably connected with the first rotating disk 3 or the second rotating disk 4, which has a simple structure and is easy to operate. Fixed on the isolation plate 2 by bearings, the first rotating shaft 8 passes through the bearing and extends into the lower chamber, the center of the rotating disk 2 4 is pierced with a rotating shaft 2 9 fixedly connected to the rotating disk 2 4, and One end of the rotating shaft two 9 is fixed on the bottom end of the casing 1 through a bearing, and the other end of the rotating shaft two 9 is connected with the rotating shaft one 8 through the clutch 10, corresponding to the rotating shaft one 8 and the rotating shaft at the upper and lower ends of the clutch 10 respectively. Rotating gear one 11 and rotating gear two 12 are fixed on the rotating shaft two 9, and the diameter of rotating gear one 11 is greater than the diameter of rotating gear two 12, and the one side of described separating plate 2 near rotating shaft one 8 is fixed with rotating motor 13 , and the output shaft of the rotary motor 13 is fixed with a drive gear one 14 and a drive gear two 15 in sequence along the extension direction of the shaft body, and a transmission shaft 16 is fixed on the isolation plate 2 between the rotary shaft one 8 and the rotary motor 13, so Described power transmission shaft 16 rotates successively along its axle body extension direction and is connected with driven gear one 17 that is meshed with rotating gear one 11 and driven gear two 18 that is meshed and connected with rotating gear two 12, and driven gear two 18 inner walls and The outer wall of the drive shaft 16 is slidingly connected, and the first driven gear 17 and the second driven gear 18 are respectively meshed with the first driving gear 14 and the second driving gear 15, and are located between the first driven gear 17 and the second driven gear 18 The transmission shaft 16 is fixed with a mounting plate 19, and the mounting plate 19 is provided with hydraulic cylinders at equal intervals along the transmission shaft 16, and the top end of the piston rod of the hydraulic cylinder is connected with the driven gear 2 18, and the driven gear 18 includes The gear outer ring 18a and the gear inner ring 18b, and the gear outer ring 18a and the gear inner ring 18b are rotationally connected, and the teeth The wheel inner ring 18b is connected with the top end of the piston rod of the hydraulic cylinder.

Working principle: When centrifuging a liquid, seal the test tube containing the liquid and put it into the placement groove 6 on the rotating disk 1 3 or rotating disk 2 4, and close and lock the placing groove door 7, if When the test tube is placed on the rotating disk 1, at this time, start the hydraulic cylinder, so that the piston rod on the hydraulic cylinder drives the driven gear 18 to slide upwards or downwards along the transmission shaft 16 until the driven gear 18 and the rotating Gear two 12 and driving gear two 15 disengage completely, meanwhile, clutch 10 separates rotating shaft one 8 and rotating shaft two 9, just can start rotating motor 13 and make rotating disc one 3 drive test tube to rotate and get final product, when test tube is put into When reaching the rotating disc 2 4, only the clutch 10 is needed to connect the rotating shaft 1 8 and the rotating shaft 2 9, similarly start the hydraulic cylinder, so that the piston rod on the hydraulic cylinder drives the driven gear 2 18 to move up or down along the transmission shaft 16 Slide down until driven gear 2 18 is completely disengaged from rotating gear 2 12 and driving gear 2 15, then start rotating motor 13 to make rotating disc 1 3 and rotating disc 2 4 rotate simultaneously;

When centrifuging two different liquids, seal the test tube containing the liquid, put the liquid with less centrifugal force into the placement groove 6 on the rotating disk one 3, and put the other liquid into the rotating disk two 4 Placement groove 6 on the top, then lock the placement groove door 7, start the hydraulic cylinder, so that the piston rod on the hydraulic cylinder drives the driven gear 2 18 to move along the transmission shaft 16 until the driven gear 2 18 and the rotating gear 2 12 Engage with driving gear two 15 and connect, then start rotating motor 13 to make rotating disk one 3 and rotating disk two 4 rotate simultaneously, because the diameter of rotating gear one 11 is greater than the diameter of rotating gear two 12, therefore, rotating disk one 3 rotation speed The speed of rotating disk 2 is lower than that of rotating disk 4, so the centrifugal force of rotating disk 1 3 is smaller than that of rotating disk 2 4, so that this centrifuge can not only perform centrifugal layering on a large amount of the same sample liquid at one time, but also apply to two Different kinds of sample liquids requiring different centrifugal forces are subjected to centrifugal layering.

Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art can modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the utility model, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the utility model.

Claims (6)

1. a kind of medical centrifuge, including cabinet (1), it is characterised in that: cabinet (1) inner cavity by isolation board (2) by its Inside is separated into upper chamber and lower chambers, and upper chamber respectively corresponds with bottom chamber and is provided with mutually isostructural rotating disk one (3) and rotating disk two (4), the upper chamber and lower chambers correspond respectively to the position where rotating disk one (3) and rotating disk two (4) The place of setting is equipped with ring-like window (5), and the side wall of rotating disk one (3) and rotating disk two (4) equidistantly offers placement vertically Slot (6), and be hinged on placing groove (6) and place pod door (7), retaining mechanism, the rotation are provided on the placement pod door (7) Disk one (3) bottom dead center position inherently in rotation axis one (8), and the other end of rotation axis one (8) by bearing be fixed on every From on plate (2), the rotation axis one (8) passes through bearing and extends to bottom chamber, and rotating disk two (4) center is worn There is the rotation axis two (9) being fixedly connected with rotating disk two (4), and one end of rotation axis two (9) is fixed on cabinet (1) by bearing The other end of bottom end, the rotation axis two (9) is connect by clutch (10) with rotation axis one (8), is respectively corresponded positioned at clutch Rotate gear one (11) and rotate gear two are fixed in the rotation axis one (8) and rotation axis two (9) of device (10) upper/lower terminal (12), and the diameter of rotate gear one (11) is greater than the diameter of rotate gear two (12), and the isolation board (2) is close to rotation axis one (8) side is fixed with rotating electric machine (13), and the output shaft of rotating electric machine (13) is successively fixed with along its axle body extending direction Driving gear one (14) and driving gear two (15), on the isolation board (2) between rotation axis one (8) and rotating electric machine (13) It is fixed with transmission shaft (16), the transmission shaft (16) is successively rotatably connected to and rotate gear one (11) along its axle body extending direction It engages the driven gear one (17) of connection and engages the driven gear two (18) of connection, and driven gear with rotate gear two (12) Two (18) inner walls are slidably connected with transmission shaft (16) outer wall, and the driven gear one (17) and driven gear two (18) respectively correspond Engage connection with driving gear one (14) and driving gear two (15), be located at driven gear one (17) and driven gear two (18) it Between transmission shaft (16) on be fixed with mounting plate (19), the mounting plate (19) has liquid along (16) one weeks spaced sets of transmission shaft Cylinder pressure, and the piston rod top end of hydraulic cylinder is connect with driven gear two (18), the driven gear two (18) includes gear outer ring (18a) and inner ring gear (18b), and gear outer ring (18a) and inner ring gear (18b) is rotatablely connected, the inner ring gear (18b) It is connect with the piston rod top end of hydraulic cylinder.

2. a kind of medical centrifuge according to claim 1, it is characterised in that: cabinet (1) outer wall is provided with controller (20), and controller (20) and clutch (10), rotating electric machine (13) and hydraulic cylinder are electrically connected.

3. a kind of medical centrifuge according to claim 1, it is characterised in that: placing groove (6) bottom end offers limit Slot (21), and placing groove (6) bottom end passes through fixed limit briquetting (22) of spring.

4. a kind of medical centrifuge according to claim 3, it is characterised in that: the limit briquetting (22) is by rubber material It is made.

5. a kind of medical centrifuge according to claim 1, it is characterised in that: the retaining mechanism includes being fixed on placing groove Door (7) on fixed ring buckle (23) and be arranged in rotating disk one (3) or rotating disk two (4) with fixed ring buckle (23) Xiang Shi The fixation fixture block (24) matched.

6. a kind of medical centrifuge according to claim 5, it is characterised in that: the fixed fixture block (24) and rotating disk one (3) or rotating disk two (4) is rotatablely connected.