CN2288434Y

CN2288434Y - Rectangular coordinate type liquid sampling mechanism

Info

Publication number: CN2288434Y
Application number: CN 97226587
Authority: CN
Inventors: 邓世昆
Original assignee: Yunnan University YNU
Current assignee: Yunnan University YNU
Priority date: 1997-07-08
Filing date: 1997-09-25
Publication date: 1998-08-19
Anticipated expiration: 2007-09-25

Abstract

The utility model provides a rectangular coordinate type liquid sample sampling mechanism, belonging to the field of a medical treatment device and a chemical analysis device. The utility model is composed of a bottom frame with a horizontal guideway, a trolley moving forwards and backwards with a horizontal guideway, a trolley moving from left to right with a vertical guideway, a moving trolley clamped on the vertical guideway, a step motor and a corresponding transmission mechanism, wherein, the trolley moving forwards and backwards is clamped on the guideway on the bottom frame; the trolley moving from left to right is clamped on the guideway on the trolley moving forwards and backwards; each trolley can be provided with pulley wheels, and each motor can be arranged on the trolley driven by the motor or on a guideway seat. The utility model has the advantages of big sampling freedom degree and strong adaptability, and the utility model is suitable for automatically sampling mass liquid samples under complicated conditions.

Description

Cartesian coordinate type fluid sample sampling mechanism

The utility model relates to a kind of sampling mechanism of fluid sample automatic sampling machine, belongs to medical treatment, chemical analysis device field.

In existing analysis, the medicinal liquid sample automatic sampling machine, sampling mechanism has modes such as rotating disk suitching type, chain type suitching type, hyperchannel switching valve type, test tube rack suitching type, but these sampling mechanisms all have only one degree of freedom, be only applicable to the occasion of the sample determination of the single solution that solution amount is fixed, container dimensional is fixing, single mode, can't be adapted to the complex situations that solution type is many, solution amount is different, container dimensional is different, the sample introduction process is different.

The purpose of this utility model is to overcome the deficiency of prior art, and a kind of 3 degree of freedom that have are provided, and adapts to the complicated Cartesian coordinate type fluid sample sampling mechanism of sample sampling request in batches.

This practical technical scheme is: the special character of this Cartesian coordinate type fluid sample sampling mechanism be it by before and after the band level to the underframe frame 1 of Y guide rail (being used to support dolly 2 operations) (during work, sampling receptacle is positioned over wherein), be placed on the underframe frame 1 horizontal Y guide rail (make dolly keep movement locus and can not deviate from), can seesaw about (by corresponding step motor drive) and band level to the dolly 2 that seesaws of X guide rail, be placed on the dolly 2 horizontal X guide rails, but move left and right (corresponding step motor drive) and with the move left and right dolly 3 of vertical vertical Z guide rail, be placed on the dolly 3 vertical Z guide rails, can move up and down (by corresponding step motor drive) and be with the dolly 4 that moves up and down (the fixing available commonsense method of suction pipe and dolly of sample sipper tube 5, fastening as screw, cementation etc.); Be respectively applied for 3 stepper motors (common stepper motor) and the corresponding common gear train that drive each moving of car and (power of each stepper motor passed to each dolly, each dolly is moved on its guide rail, can be band transmission, chain transmission, gear drive, the transmission of backguy steel wire, over-type worm gear, rack-and-pinion transmission, thread transmission etc.) form; Its special character is that also each guide rail is parallel double track and (guarantees that each trolley travelling is steady, accurate positioning), each trolley can be the structure of direct cutting ferrule on its respective track, and (dolly does not have pulley, has only vehicle frame, directly sliding on the respective track during motion) or be with the structure that is placed in the pulley on its respective track (pulley to be arranged on the vehicle frame, slide on guide rail through the pulley support dolly), each drive motor can be loaded on respectively and (directly will be loaded on the dolly of its driving on the dolly of its driving, through gear train driving trolley operation on the dolly) or the track base of trolley travelling on (be underframe frame 1 or dolly 2, on 3, through reaching corresponding known gear train driving trolley motion on the track base on the dolly).

Fig. 1 is the utility model synoptic diagram, the Y guide rail be before and after the level to guide rail, the X guide rail be about level to guide rail, the Z guide rail is for vertically to guide rail.

Fig. 2 is the utility model embodiment dolly 3 or 4 running part synoptic diagram; Among the figure, 6 is stepper motor, and 7 is the tooth bar belt.But technical characterictic of the present utility model is not limited to shown in the accompanying drawing.

Further set forth embodiment of the present utility model below in conjunction with accompanying drawing:

As Fig. 1, shown in 2, this Cartesian coordinate type fluid sample adopts mechanism by the underframe frame 1 of band level front and back to Y guide rail (double track), be placed on the underframe frame 1 horizontal Y guide rail, can seesaw and the band level about to the dolly 2 that seesaws of X guide rail (double track), be placed on the dolly 2 horizontal X guide rails, but move left and right and with the move left and right dolly 3 of vertical vertical guide rail (double track), be placed on the dolly 3 vertical Z guide rails, can move up and down and, be respectively applied for 3 stepper motors and the corresponding gear train that drive each moving of car and form with the dolly 4 that moves up and down of sample sipper tube 5 (screw retention).Dolly 2 adopts the structure of band pulley, its respective drive motor is loaded on the underframe frame 1 and adopts ordinary steel wire backguy gear train, on the underframe frame, pulley is set, steel wire is linked to each other with its stepper motor and dolly 2 two ends, dragging dolly 2 by its stepper motor seesaws in orbit, dolly 3,4 all adopt no pulley structure, the direct cutting ferrule of vehicle frame is on its respective track, it (is dolly 2 that drive motor is loaded on its corresponding guide rail seat, on 3), corresponding gear train is arranged on (dolly 2 on the track base, on 3), (the belt inner ring is a profile of tooth to adopt common profile of tooth tape handler, improve the moving of car precision), at track base one end fixed electrical machinery (band pinion wheel on the axle), the other end is established pinion wheel (pulley), the profile of tooth driving belt is placed between motor and pinion wheel, one side of driving-belt is fixed on the trolley, by the driven by motor belt movement, drags dolly 3 or 4 about doing on its respective track or move up and down.

When using this sampling mechanism, stepper motor on 3 dollies is connected in existing control circuit, sample sipper tube 5 is connected in the existing control circuit suction pump, the sampling receptacle that to analyze places underframe frame 1 again, control forward and reverse action of stepper motor on each dolly by control circuit, can realize each dolly all around, motion up and down, realize the motion of sample sipper tube 5 then in 3 degree of freedom directions, under suction pump control to each sample sampling and be transported to the analysis room and measure.By the different control program of available circuit, i.e. the different strokes of may command sample sipper tube 5 on 3 directions in top to bottom, left and right, front and rear, thus realize the sample of different solutions, molten device size, sampling request is drawn, carried and the automatic sampling process of cleaning.

The utlity model has strong adaptability, the sampling free degree is big, can realize liquid under different batches, the complex situations The advantage of the sampling task of sample.

Claims

1. Cartesian coordinate type fluid sample sampling mechanism, it is characterized in that it is by the underframe frame 1 of band level front and back to the Y guide rail, be placed on the underframe frame 1 horizontal Y guide rail, can seesaw and the band level about to the dolly 2 that seesaws of x guide rail, be placed on the dolly 2 horizontal x guide rails, but move left and right and with the move left and right dolly 3 of vertical vertical Z guide rail, be placed on the dolly 3 vertical Z guide rails, can move up and down and, be respectively applied for 3 stepper motors and the corresponding common gear train that drive each moving of car and form with the dolly 4 that moves up and down of sample sipper tube 5.

2. Cartesian coordinate type fluid sample according to claim 1 is adopted mechanism, it is characterized in that each guide rail is parallel double track, directly cutting ferrule is in being placed on its respective track on its respective track or through pulley for each trolley, and each drive motor can be loaded on the dolly of its driving respectively or on the guide rail of trolley travelling.