CN2506353Y

CN2506353Y - Low-speed two-purpose desk type centrifuge

Info

Publication number: CN2506353Y
Application number: CN 01228903
Authority: CN
Inventors: 习淑琴; 陈志堃
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-21
Filing date: 2001-06-21
Publication date: 2002-08-21
Anticipated expiration: 2011-06-21

Abstract

A low speed double-use desktop centrifuge consists essentially of a shell (1), a motherboard (2), a swivel (3), an electromotor (4), a gear box (5), an overrunning coupler (6), a center spacer (7), a hand lever (8) and a controlling circuit board (9), wherein, the swivel (3) and the electromotor (4) are connected into a whole, and installed on the center spacer (7) together with the gear box (5), the center spacer (7) is further connected with the motherboard (2), the swivel (3) and the gear box (5) transmit mutually through a synchronous belt (42). The centrifuge can be operated electrically or manually, thereby being favorable for using in hospitals, scientific research units and clearing hospitals based on reasonable structure and easy use and maintenance.

Description

The dual-purpose desk centrifuge of low speed

The utility model relates to a kind of different rotary speed of utilizing, and the centrifugal force that produces different sizes separates the device of various sample, and especially this device can be electronic and hand.

Hospital on the current social, the clinic, R﹠D institution, rescue and relief work, field hospital, all kinds of chemical examinations usually need be done in open-air battlefield, biochemical test, work such as separating sample, this just needs a desk centrifuge, can be such as it in the certain environment temperature, humidity, even work under the rugged environment situation, energy is constant speed automatically, timing operation, noise is low, and is easy to operate, especially can satisfy applying unit can both be done chemical examination under normal power-up and accident power-off situation needs, in particular for rescue and relief work, open-air battlefield provides the desirable manual centrifuge of requisite energy, if adopt hand mode just need satisfy when hand firmly not quite, relatively gravy jobs is because that be engaged in this medical work is the women mostly.Provide electronic centrifuge on the market now, this just inspire we provide as early as possible satisfy that above-mentioned operation technique requires can dual-purpose electrically and manually desk centrifuge.

The purpose of this utility model is to provide a kind of and satisfies in the certain environment temperature, humidity, even adverse circumstances, and noise is low, and is easy to operate, high efficient and reliable, maintenance and repair are desk centrifuge electrically and manually easily.

The utility model is achieved through the following technical solutions:

The dual-purpose desk centrifuge of a kind of low speed, mainly by casing (1), base plate (2), rotary head (3), motor (4), gearbox (5), freewheel clutch (6), median septum (7), hand crank (8), control circuit board (9) is formed, and wherein rotary head (3) links into an integrated entity with motor (4), is connected with median septum (7) by damper (43), gearbox (5) is installed on the median septum (7), median septum (7) links to each other with base plate (2) by damper, and rotary head (3) interconnects transmission by synchronous pulley (41) through synchronous belt (42) with gearbox (5), and hand crank (8) is connected with gearbox (5).

Rely on during the electronic rotation of rotary head (3) and transfer voltage to come speed governing, RCF can reach 1700g during maximum speed, rotates with hand crank in the time of manually, can rotate easily by 4 grades of speed changes of gearbox (5), reaches required requirement.

The utlity model has following advantage and effect:

1, the utility model can be applicable to hospital, R﹠D institution, and field hospital, rescue and relief work, open-air battlefield can be electronic and manual, and is firmly little when hand, and use that can be easy and convenient can be controlled rotating speed and timing automatically when electronic, and mechanical efficiency is higher.

2, the utility model compactness rational in infrastructure, working service is repaired simple and easy.

The drawing of accompanying drawing is described as follows:

Figure 1A is an overall appearance schematic diagram of the present utility model

Figure 1B is the rear view of Figure 1A

Fig. 2 is the A-A cutaway view of Fig. 1

Fig. 3 is a fundamental diagram of the present utility model

Fig. 4 is the control circuit figure of the utility model motor

Among the figure: 1-casing, 11-muffler, 12-plexiglass cover, 13-panel, 14-revolution counter, 15-rotational speed regulation knob, 16-timer knob, 17-timer indicator lamp, the power switch of 18-tape light, the 19-supply socket, 20-Insurance Block, 2-base plate, 21-foot pad, the 3-rotary head, 31-test tube, the centrifugal chamber of 32-, 4-motor, the 41-synchronous pulley, 42-synchronous belt, 43-damper, 5-gearbox, the 6-freewheel clutch, 7-median septum, 8-hand crank, 9-control circuit board

Be described further below in conjunction with drawings and Examples:

By Fig. 1, Fig. 2, Fig. 3 are as can be known, the utility model is mainly by casing 1, base plate 2, rotary head 3, motor 4, gearbox 5, freewheel clutch 6, median septum 7, hand crank 8, control circuit board 9 is formed, wherein rotary head 3 links into an integrated entity with motor 4, is connected with median septum 7 by damper 43, and gearbox 5 is installed on the median septum 7, median septum 7 links to each other with base plate 2 by damper, and rotary head 3 interconnects transmission by synchronous pulley 41 through synchronous belt 42 with gearbox 5, and hand crank 8 is connected with gearbox 5.

From Fig. 2 as seen, the transmission that when hand freewheel clutch 6 is engaged each meshing gear of 4 grades of speed changes of leading to gearbox 5 is rotated the function that rotary heads 3 realize producing centrifugal force through synchronous pulley 41 and synchronous belt 42, the gearratio i=67 that it is total, during hand 60r/min, rotary head 3 can reach 4000r/min, the added active force of definite assurance of the arm of force length of hand crank 8 is not more than test tube and adds 80 times of test solution gross weight, and is just lighter when hand, selects fine module gear to reduce the friction of meshing.

Can open freewheel clutch 6 when electronic and throw off gearbox 5, each does not rotate in the case, carries out speed governing by the control circuit on the control circuit board 9, and during maximum speed 4000r/min, Max RCF can reach 1700g.

Be also shown in by figure, casing 1 top also is provided with muffler 11 and plexiglass cover 12 carries out situation for viewing test, casing 1 integral body is enclosed within on the base plate 2, this version is convenient to maintenance and repair, the structure of rotary head 3 is in order to settle test tube 31, and makes the bullet in centrifugal chamber 32, is added with damper 43 in order to reduce vibrations, flexible foot pad 21 in like manner is housed in the bottom of base plate 2, and it is standby that hand crank 8 detachably is placed down in the base plate bottom.

As seen from the figure, revolution counter 14 is housed on the panel of casing 1, rotational speed regulation knob 15, timer knob 16, timer indicator lamp 17, the power switch 18 of tape light is equipped with supply socket 19 at casing 1 back, Insurance Block 20.

As shown in Figure 4, control circuit on the control circuit board 9 links to each other with operating knob or switch on the panel 13, be connected with motor 4 again, originally illustrate the schematic diagram of control circuit, as seen from the figure, its speed control principle mainly is control BTA06, the size of DB3 thyristor operating angle, set up required voltage, thereby play the effect of speed governing.Its operating process is (referring to Figure 1A), press the power switch 18 of tape light, connect power supply, rotate timer knob 16, setting-up time rotates rotational speed regulation knob 15 from left to right, be 470K resistance (referring to Fig. 4), electric motor starting, and raising speed slowly, the scale of seeing revolution counter 14 is shown to and can needs rotating speed to get final product.

Claims

1, the dual-purpose desk centrifuge of a kind of low speed, mainly by casing (1), base plate (2), rotary head (3), motor (4), gearbox (5), freewheel clutch (6), median septum (7), hand crank (8), control circuit board (9) is formed, and it is characterized in that: rotary head (3) links into an integrated entity with motor (4), is connected with median septum (7) by damper (43), gearbox (5) is installed on the median septum (7), median septum (7) links to each other with base plate (2) by damper, and rotary head (3) interconnects transmission by synchronous pulley (41) through synchronous belt (42) with gearbox (5), and hand crank (8) is connected with gearbox (5).

2, the dual-purpose desk centrifuge of low speed according to claim 1, it is characterized in that: centrifuge can reach rotating speed 4000r/min, and Max RCF is 1700g, reagent total capacity 80ml.

3, the dual-purpose desk centrifuge of low speed according to claim 1 is characterized in that: the gearratio of gearbox (5) is i=67.

4, the dual-purpose desk centrifuge of low speed according to claim 1, it is characterized in that: revolution counter (14) is housed on the panel (13), rotational speed regulation knob (15), timer knob (16), timer indicator lamp (17), the power switch of tape light (18), and be contained in motor (4) on the median septum (7), be communicated with control circuit on the control circuit board (9) by circuit, by regulator potentiometer R2, control controllable silicon BTA06, the angle of flow of DB3 is regulated the rotating speed of motor (4).