CN2776559Y - Low speed medical centrifugal machine - Google Patents

Abstract

The utility model relates to a low speed medical centrifugal machine, and more specially, the utility model is used for separating different test solution, is an instrument for modern biology, agricultural science, medicine research and clinical diagnosis and belongs to a medical appliance field. The utility model mainly adopts that a motor is positioned at the lower part of a machine body, a centrifugal cavity is arranged above the motor, an air isolation cover is used for closing a rotary head and a centrifugal cup and is connected with the bottom of the rotary head, and an electric control plate is positioned at the back part of the machine body. The utility model is characterized in that a balance mechanism is arranged on the bottom plate of the machine body, the bottom plate is provided with a support which is connected with the bottom plate through the motor, and the support becomes an integral body with the balance mechanism and the motor. The utility model has the advantages of simple structure, compact structure and reasonable structure. Because micro-treatment control is adopted, a door lock of a machine cover is automated, balance can adjust automatically, control precision is high, running is smooth, and test solution can separate automatically. Because the machine body, etc. are made of full plastic materials, an outer housing is not easy to rust, shape is beautiful, volume is small, noise is low, and life is long.

Description

The low speed medical centrifuge

Technical field

The utility model relates to a kind of low speed medical centrifuge, specifically is used for different test solutions are separated, and be the desirable instrument of modern biology, agricultural sciences and medical research and clinical diagnosis, belong to the medical apparatus and instruments technical field.

Background technology

Before the utility model was made, in prior art, the medical centrifuge that is used for different test solutions are separated normally was made up of motor, balanced controls, centrifugal chamber, swing bucket rotor, Centrifuge Cup, air insulated cover, casing and automatically controlled plate etc.Motor is positioned at the bottom of body, and centrifugal chamber places the top of motor, and balanced controls are installed on the seat board, and rotary head and Centrifuge Cup are housed in the air insulated cover, and the horizontal rotary head is loaded on the axle of motor, and automatically controlled plate is positioned at the rear lower of body.The centrifuge volume of this kind structure is big, and shell easily gets rusty, and service life is short; Running inadequately steadily, poor radiation, noise height, moulding be not attractive in appearance, automatically adjustment.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned weak point, thereby provides a kind of simple, compact and reasonable for structure; Automatically adjustment, running are steadily, thermal diffusivity is good, noise is low, shell is difficult for getting rusty, and handsome in appearance, volume is little, the low speed medical centrifuge of long service life.

Main solution of the present utility model is achieved in that

The utility model mainly adopts motor 19 to be positioned at the central lower of body 10, cover 11 is combined on the body 10, centrifugal chamber 6 places the top of motor 19, be fixed on the middle plate of body 10, air insulated cover 15 is with whole rotary head 13 and Centrifuge Cup 14 is closed and connect with rotary head 13 bottoms, automatically controlled plate 17 is positioned at the rear lower of body 10, it is characterized in that balanced controls 8 are installed on the base plate of body 10 is distributed in around the motor 19, on seat board 9, be equipped with and support 7, connect with seat board 9 by motor 19, support 7 and balanced controls 8 and motor 19 are connected as a single entity.

Compared with the prior art the utility model has the following advantages:

The utility model is simple, compact and reasonable for structure; Since adopted little processing controls, the automation of cover door lock, energy is adjustment automatically, the control accuracy height, and running steadily can make test solution separate automatically; Because body is that overall plastic material is made, shell is difficult for getting rusty, and is handsome in appearance, and volume is little, and noise is low, long service life.

Description of drawings

Fig. 1 is the utility model structural front view.

The specific embodiment

Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:

The utility model mainly is made up of visor 1, nut 2, control panel 3, electronic lock 4, power switch 5, centrifugal chamber 6, support 7, balanced controls 8, seat board 9 casings 10, cover 11, sealing ring 12, swing bucket rotor 13, Centrifuge Cup 14, air insulated cover 15, sealing shroud 16, automatically controlled plate 17, under-chassis 18, motor 19 etc.Adopt motor 19 to be positioned at the central lower of body 10, cover 11 is combined on the body 10, the balanced controls 8 that have seat board 9 are distributed in around the motor 19, on seat board 9, be equipped with and support 7, by supporting 7 motor 19 connected with seat board 9, motor 19, support 7 and balanced controls 8 are become one, be fixed at last on the base plate of body.Centrifugal chamber places the top of motor 19, is fixed on the middle plate of body 10, and power switch 5 is installed on right side on body 10, and sealing shroud 16 is enclosed within on the middle plate of motor 19 and body 10 and makes the sealing of 6 bottoms, centrifugal chamber.Horizontal rotary head 13 is loaded on the shaft extension of motor 19, and nut 2 is fixed it, made rotary head 13 rotations by short pin again.The cuvette cartridge that is filled with the equivalent test solution in Centrifuge Cup 14 symmetry put be distributed in rotary head 13 around.Air insulated cover 15 is with whole rotary head 13 and Centrifuge Cup 14 is closed and connect with rotary head 13 bottoms, and rotary head 13 and Centrifuge Cup 14 will not rub with air during running.On cover 11, paste control panel 3, the cover 11 of sealing ring 12 is housed, on body 10, be fixed on electronic lock 4 automatic pinnings on the body 10, make cover 11 firm, do not obtain can not uncaging before the stopping signal by hinge and door lock sheet gland.The acquisition sealing suitable for reading in centrifugal like this chamber 6.Visor 1 is positioned at the central authorities of cover 11, over against the center of following rotary head 13, can test the speed and see the working order of its rotary head 13.Automatically controlled plate 17 is positioned at the rear lower of body 10, and rubber under-chassis 18 is distributed under the base plate of body 10, makes complete machine apart from the table top certain distance, makes motor 19 obtain good radiating condition.Body 10, cover 11 adopt plastics to make.

Operation principle of the present utility model:

The centrifuge container symmetry that the equivalent test solution is housed is positioned in the rotary head Centrifuge Cup on every side, rotate the RCF (RCF) that is produced at a high speed by the motor drives rotary head, test solution is separated, the size of RCF depends on the horizontal range of the residing position of sample to the rotating shaft heart, be radius of turn R and rotation speed n, its computing formula is as follows:

RCF＝1.118×10 ^-5×n ²×R(×g)

N in the formula: rotating speed (rev/min)

R: radius of turn (centimetre)

Separate particles in the mixed liquor, precipitate needed time T s and calculated by following formula:

$\mathrm{Ts}=\frac{27.4\&times;(\log \mathrm{eR}\max -\log \mathrm{eR}\min )\mathrm{\&mu;}}{{\mathrm{<figure-callout\; id="2"\; label="n"\; filenames="Y20042010898300061.png"\; state="\{\{state\}\}">n</figure-callout>}}^2\&times;{\mathrm{<figure-callout\; id="2"\; label="r"\; filenames="Y20042010898300061.png"\; state="\{\{state\}\}">r</figure-callout>}}^2\&times;(\mathrm{\&sigma;}-p)}$

Divide

P in the formula: mixed liquor density (gram per centimeter ³)

μ: viscosity of mixed liquid (pool)

N: rotating speed (rev/min)

R: particle radii (centimetre)

σ: particle density (gram per centimeter ³)

Rmax: the horizontal range at the end of centrifugal test solution to rotating shaft center (centimetre)

Rmin: the face of centrifugal test solution to the horizontal range at rotating shaft center (centimetre)

The course of work of the present utility model:

At first the sample with equivalent is placed in vitro, puts it in the rotary head 13.The cover 11 that closes, breakdown power switch 5 is provided with the rotating speed and the duration of runs on control panel 3, after the memory storage, by the running key, electronic lock 4 locking covers 11 at this moment, Centrifuge Cup 14 rotations are being with in rotary head 13.The time of setting arrives, motor 19 reduction of speed stalls, and electronic lock 4 pulls out lock automatically, and start covers 11, takes out sample, finishes entire work process.

Claims (2)

1, a kind of low speed medical centrifuge, adopt motor (19) to be positioned at the central lower of body (10), cover (11) is combined on the body (10), centrifugal chamber (6) places the top of motor (19), be fixed on the middle plate of body (10), air insulated cover (15) connects with the sealing of whole rotary head (13) and Centrifuge Cup (14) and with rotary head (13) bottom, automatically controlled plate (17) is positioned at the rear lower of body (10), it is characterized in that balanced controls (8) are installed on the base plate of body (10) is distributed in motor (19) on every side, support (7) is housed on seat board (9), connect with seat board (9) by motor (19), support (7) and balanced controls (8) and motor (19) and become one.

2, low speed medical centrifuge according to claim 1 is characterized in that described body (10), cover (11) adopt plastics to make respectively.

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