CN101285843A

CN101285843A - Full-automatic biochemical analyzer liquid-transferring arm combined device

Info

Publication number: CN101285843A
Application number: CNA2008100382265A
Authority: CN
Inventors: 杨东良; 钱义平; 郑绪斌; 孙臻; 郁鸿亮
Original assignee: SHANGHAI ANTAI DIAGNOSTICS CO Ltd
Current assignee: SHANGHAI ANTAI DIAGNOSTICS CO Ltd
Priority date: 2008-05-29
Filing date: 2008-05-29
Publication date: 2008-10-15

Abstract

The invention relates to a full-automation biochemical analyzer liquor relief arm combination device, which is characterized in that: the device consists of a liquor relief arm and a liquor relief arm rotary disc; the liquor relief arm is embedded at the upper end of the liquor relief arm rotary disc, and comprises a linear motor; a lifting loop bar is arranged on the axis of the linear motor; a cover shell is fixed at the top end of a liquor relief arm holder; a liquor relief lower arm is connected with the cover shell; a silicone tube is arranged inside the liquor relief lower arm with the top end provided with a needle wiper; a liquor relief upper arm is arranged at the top end of the lifting loop bar; a loading needle is arranged at the top end of the liquor relief upper arm, and the lower end of the loading needle passes through the needle wiper; a sleeve pipe is connected with the liquor relief upper arm; a plastic capillary tube is arranged inside the sleeve pipe with the upper end connected with the loading needle; a mounting bottom plate of the liquor relief arm rotary disc is arranged at the upper end of a bearing pedestal; a rotary shaft sleeve is arranged at the upper end of the mounting bottom plate; and a step motor is connected with the rotary shaft sleeve. The full-automation biochemical analyzer liquor relief arm combination device has the advantages that: the device has simple and compact structure, high positioning precision and furthest reduced kinematic error, and can save testing time.

Description

A kind of full-automatic biochemical analyzer liquid-transferring arm combined device

Technical field

The present invention relates to a kind of full-automatic biochemical analyzer liquid-transferring arm combined device, relate in particular to a kind of can be used for pipetting in the clinical medicine check biochemical analyzer reagent and sample move the liquid arm, belong to the automatic clinical chemistry analyzer technical field.

Background technology

In the clinical medicine check, there is following problem in the liquid arm assembly that moves of automatic clinical chemistry analyzer at present:

1. wash needle device and move the liquid arm and separate, all will walk to do after each imbibition and wash the pin action, make and to test action continuously and lose time;

2. lead screw device that moves up and down and wheelwork disalignment cause the problem on stressed, make to occur the shake and the out of true that walks easily in the motion;

3. moving liquid arm and rotating disk is not nested structure, and complexity is installed, and is unfavorable for producing maintenance, is easy to generate away bit error.

Summary of the invention

The purpose of this invention is to provide a kind of stablely in measuring process, walk accurately, save detection time, to reach the full-automatic biochemical analyzer liquid-transferring arm combined device of doing more detections in the unit interval.

For realizing above purpose, technical scheme of the present invention provides a kind of full-automatic biochemical analyzer liquid-transferring arm combined device, it is characterized in that, form by moving the liquid arm and moving liquid arm rotating disk, move the liquid arm and be nested in liquid arm rotating disk upper end, the described liquid arm that moves comprises linear electric motors, the lifting loop bar is located on the linear electric motors axle by nut, move the liquid arm seat and be located at the outside of lifting loop bar, be installed in rolling bearing on the lifting loop bar in the straight-line groove that moves the liquid arm, first anti-dazzling screen and first optocoupler are located at lifting loop bar lower end respectively and are moved the upper end of liquid arm seat, the case vertical fixing is in the top of moving the liquid arm seat, moving liquid underarm level is connected with case, silicone tube is located at and is moved in the liquid underarm, be connected with scavenging pump, the top is provided with wipes the pin device, moving up and downly move the top that the liquid upper arm is vertical at the lifting loop bar, the liquid underarm is parallel with moving, sample needle is vertical at the top of moving the liquid upper arm by housing screw, its lower end is passed and is wiped the pin device, protecting pipe vertically passes and moves the liquid underarm and move the liquid upper arm and be connected, and plastic capillary is located in the protecting pipe, and the upper end is connected with sample needle; Described liquid arm rotating disk comprises the bearing seat that has rolling bearing, base plate is installed is located at the upper end of bearing seat, rotary axle box is located in the bearing seat by rolling bearing, stepper motor is located at bearing seat one side that the base plate lower end is installed, be connected with rotary axle box by synchrome conveying belt, second anti-dazzling screen is located on the rotary axle box, and second optocoupler is installed in installing on the base plate.

Thereby be combined in to move to make in the liquid underarm and wash pin and needn't walk in addition again and save time thereby the present invention just wipes the pin device, simultaneously that the lifting loop bar that moves up and down is coaxial with wheelwork, be not prone to shake and coarse phenomenon that walks in the feasible motion, the present invention will move the liquid arm and rotating disk adopts nested structure, install easily, help producing maintenance.

The invention has the advantages that simple and compact for structure, easy to process, the bearing accuracy height, the error in the motion drops to minimum, and can save detection time, has improved the work efficiency that full-automatic biochemical is analyzed greatly.

Description of drawings

Fig. 1 is a kind of full-automatic biochemical analyzer liquid-transferring arm combined device structural representation;

Fig. 2 is for moving liquid arm configuration synoptic diagram;

Fig. 3 is for moving liquid arm turntable structure synoptic diagram.

Embodiment

The invention will be further described below in conjunction with drawings and Examples.

Embodiment

As shown in Figure 1, be a kind of full-automatic biochemical analyzer liquid-transferring arm combined device structural representation, described a kind of full-automatic biochemical analyzer liquid-transferring arm combined device moves liquid arm 1 and is nested in liquid arm rotating disk 2 upper ends by moving liquid arm 1 and moving liquid arm rotating disk 2 and form.

As shown in Figure 2, for moving liquid arm configuration synoptic diagram, described move liquid arm 1 by linear electric motors 3, move liquid arm seat 4, first anti-dazzling screen 5, rolling bearing 6, plastic capillary 7, lifting loop bar 8, protecting pipe 9, case 10, silicone tube 11, move liquid underarm 12, wipe pin device 13, sample needle 14, housing screw 15, move liquid upper arm 16 and first optocoupler 17 is formed.

Lifting loop bar 8 is installed on the axle of linear electric motors 3 by nut, moves the outside that liquid arm seat 4 is enclosed within lifting loop bar 8, is installed in rolling bearing 6 on the lifting loop bar 8 in the straight-line groove that moves liquid arm 1, makes that lifting loop bar 8 moved up and down when linear electric motors 3 rotated.First anti-dazzling screen 5 and first optocoupler 17 are installed in lifting loop bar 8 lower ends respectively and move the upper end of liquid arm seat 4, case 10 vertical fixing are in the top of moving liquid arm seat 4, moving liquid underarm 12 levels is connected with case 10, silicone tube 11 is installed in and moves in the liquid underarm 12, be connected with the scavenging pump 26 on being installed in case 10, its top is installed and is wiped pin device 13, moving up and downly move the top that liquid upper arm 16 is vertically mounted on lifting loop bar 8, liquid underarm 12 is parallel with moving, sample needle 14 is vertically mounted on the top of moving liquid upper arm 16 by housing screw 15, its lower end is passed and is wiped pin device 13, protecting pipe 9 vertically passes and moves liquid underarm 12 and move liquid upper arm 16 and be connected, plastic capillary 7 is located in the protecting pipe 9, and the upper end is connected with sample needle 14.

As shown in Figure 3, for moving liquid arm turntable structure synoptic diagram, described liquid arm rotating disk 2 is by stepper motor 18, synchrome conveying belt 19, second anti-dazzling screen 20, rotary axle box 21, and rolling bearing 22, bearing seat 23, installation base plate 24 and second optocoupler 25 are formed.

Rolling bearing 22 is installed in the bearing seat 23, installation base plate 24 is installed in the upper end of bearing seat 23, rotary axle box 21 is installed in the bearing seat by rolling bearing 22, stepper motor 18 is located at bearing seat 23 1 sides that base plate 24 lower ends are installed, be connected with rotary axle box 21 by synchrome conveying belt 19, second anti-dazzling screen 20 is installed on the rotary axle box 21, the second optocouplers 25 and is installed in and installs on the base plate 24.

Groundwork of the present invention is to control sample needle about in the of 14, and finishes the pin work of washing by wiping pin device 13.Its principle of work is as follows: linear electric motors 3 rotate; drive the lifting loop bar about in the of 8; thereby make and move liquid upper arm 16 and walk up and down; sample needle 14 also together walks up and down simultaneously; first anti-dazzling screen 5 cooperates control to walk up and down with first optocoupler 17 amplitude; simultaneously sample needle 14 connects plastic capillary 7 and carries out the application of sample operation by sample-adding pump; it is fixing all the time to move liquid underarm 12; when needs cleaned sample needle 14, scavenging pump 26 was by silicone tube 11 water fillings, and water is circulation in wiping pin device 13; thereby move up and down sample needle 14 simultaneously and clean sample needle 14; protecting pipe 9, case 10 is used for protecting plastic capillary 7, moves liquid arm seat 4 and is used for and moves 2 connections of liquid arm rotating disk.

The effect that moves liquid arm rotating disk 2 is to install to move liquid arm 1, and control moves liquid arm 1 and rotates, when move liquid arm 1 be installed in move on the liquid arm rotating disk 2 after, stepper motor 18 rotates, driving rotary axle box 21 by synchrome conveying belt 19 rotates, be used for confirming that thereby the initial counting position that stepper motor 18 rotates accurately walks and second anti-dazzling screen 20 and second optocoupler 25 are supporting, the light tank that two symmetries are arranged on second anti-dazzling screen 20, make second anti-dazzling screen, 20 forward and reverse can both installations, base plate 24 is installed is used for the whole liquid arm 1 that moves is installed in the equipment, it is simple and reliable for structure that this moves liquid arm rotating disk 2, moves the installation of liquid arm 1 and adopt nested mode, convenient and simple, be beneficial to and produce and maintenance activity.

Claims

1. full-automatic biochemical analyzer liquid-transferring arm combined device, it is characterized in that, by moving liquid arm (1) and moving liquid arm rotating disk (2) and form, move liquid arm (1) and be nested in liquid arm rotating disk (2) upper end, the described liquid arm (1) that moves comprises linear electric motors (3), lifting loop bar (8) is located on the axle of linear electric motors (3) by nut, move liquid arm seat (4) and be located at the outside of lifting loop bar (8), the rolling bearing (6) that is installed on the lifting loop bar (8) is located in the straight-line groove that moves liquid arm (1), first anti-dazzling screen (5) and first optocoupler (17) are located at lifting loop bar 8 lower ends respectively and are moved the upper end of liquid arm seat 4, case (10) vertical fixing is in the top of moving liquid arm seat (4), moving liquid underarm (12) level is connected with case (10), silicone tube (11) is located at and is moved in the liquid underarm (12), be connected with scavenging pump (26), the top is provided with wipes pin device (13), moving up and downly move the top that liquid upper arm (16) is vertical at lifting loop bar (8), liquid underarm (12) is parallel with moving, sample needle (14) is vertical at the top of moving liquid upper arm (16) by housing screw (15), its lower end is passed and is wiped pin device (13), protecting pipe (9) vertically passes and moves liquid underarm (12) and move liquid upper arm (16) and be connected, plastic capillary (7) is located in the protecting pipe (9), and the upper end is connected with sample needle (14); Described liquid arm rotating disk (2) comprises the bearing seat (23) that has rolling bearing (22), base plate (24) is installed is located at the upper end of bearing seat (23), rotary axle box (21) is installed in the bearing seat by rolling bearing (22), stepper motor (18) is located at bearing seat (23) one sides that base plate (24) lower end is installed, be connected with rotary axle box (21) by synchrome conveying belt (19), second anti-dazzling screen (20) is installed in (21) on the rotary axle box, and second optocoupler (25) is installed in to be installed on the base plate (24).