CN201191295Y

CN201191295Y - Electrolytic analytical instrument sample handling system

Info

Publication number: CN201191295Y
Application number: CNU2008200358100U
Authority: CN
Inventors: 庄东宁
Original assignee: ZHENJIANG AODIKANG MEDICAL INSTRUMENT CO Ltd
Current assignee: Jiangsu Audicom Medical Technology Co., Ltd.
Priority date: 2008-05-16
Filing date: 2008-05-16
Publication date: 2009-02-04
Anticipated expiration: 2018-05-16

Abstract

The utility model belongs to a medical detecting instrument, relates to a component structure of an electrolyte analyzer, in particular to a sampling system of the electrolyte analyzer. A sampling plate locating seat is mounted on a rotating shaft of a sampling plate of the sampling system, a flat initial-position locating plate and a sample cup locating plate are fixed on the sampling plate locating seat, one side of the initial-position locating plate and one side of the sample cup locating plate are respectively equipped with an initial-position photoelectric switch and a sample cup locating photoelectric switch, the periphery of the initial-position locating plate is equipped with an initial-position locating notch which can be identified by the initial-position photoelectric switch, sample cups locating notches which can be identified by the sample cup locating photoelectric switch are arranged on the periphery of the sample cup locating plate, and the amount and the angle position of the sample cup locating notches correspond to that of sample cups on the sample plate. The sampling system is simple in structure, reliable in operation and high in locating precision.

Description

The blomelicalbloodgasandelectrolrteanalyzers sampling system

Technical field

The utility model belongs to medical detecting Instrument, relates to a kind of modular construction of blomelicalbloodgasandelectrolrteanalyzers, specifically is a kind of blomelicalbloodgasandelectrolrteanalyzers sampling system.

Background technology

The sampling system of blomelicalbloodgasandelectrolrteanalyzers generally is made up of sample introduction disc spins detent mechanism and sample introduction needle elevating mechanism.Two mechanisms are used in combination by programmed control, and before sample introduction dish initial alignment, the sample introduction needle elevating mechanism is started working earlier, makes sample introduction needle rise to the extreme higher position.Behind sample introduction dish initial alignment, sample introduction needle is moved downwards, enters the instrument supply opening by sample introduction dish open pore.When need carried out other location positioning to the sample introduction dish, then sample introduction needle rose to the extreme higher position, and the sample introduction disc spins is by the control of the optoelectronic switch in the sample introduction disc mechanism, the location of realizing sample disc.Behind the location, sample introduction needle is moved downwards, enters sample cup, to the sample cup sample introduction.It is more that the sampling system of existing blomelicalbloodgasandelectrolrteanalyzers exists transmission link, complex structure, the defective that reliable in action is poor, bearing accuracy is low.

Summary of the invention

Technical problem to be solved in the utility model is, a kind of simple in structure, reliable in action, blomelicalbloodgasandelectrolrteanalyzers sampling system that bearing accuracy is high are provided.

Blomelicalbloodgasandelectrolrteanalyzers sampling system of the present utility model includes sample introduction disc spins detent mechanism and is positioned at the sample introduction needle elevating mechanism of sample introduction disc spins detent mechanism one side, described sample introduction disc spins detent mechanism includes sample introduction dish driven by stepper motors, the edge of the sample introduction dish sample cup of arranging.A sample introduction dish positioning seat also is installed in the rotating shaft of described sample introduction dish, is fixed with flat initial position fix dish and sample cup positioning disk on the sample introduction dish positioning seat; Be respectively arranged with initial position optoelectronic switch and sample cup location optoelectronic switch at initial position fix dish and sample cup positioning disk one side, the initial position fix plate edge has one can be by the initial position fix notch of initial position optoelectronic switch identification, the edge of sample cup positioning disk is placed with the sample cup locating notch that can be located optoelectronic switch identification by sample cup, and the quantity of sample cup locating notch is corresponding with the sample cup on the sample introduction dish with the angle position.

Described sample introduction needle elevating mechanism comprises a vertical screw mandrel that is directly driven by stepper motor, screw mandrel cooperates with a lifting nut, lifting nut is connected with sample introduction needle by the cantilever of a level, be provided with a vertical guide plate in screw mandrel the place ahead, have vertical gathering sill on the guide plate, above-mentioned cantilever passes from gathering sill and can move along gathering sill is upper and lower.

The utility model is simple in structure, transmission link is few, thereby the reliable in action height.In addition the location of the location of sample introduction dish initial position and sample cup respectively positioning disk and the optoelectronic switch by separately position, improved its bearing accuracy.

Description of drawings

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

Fig. 2 is the structural representation of sample introduction dish positioning seat;

Fig. 3 is the vertical view of Fig. 2;

Fig. 4 is the upward view of Fig. 2.

Embodiment

As shown in the figure, this blomelicalbloodgasandelectrolrteanalyzers sampling system includes sample introduction disc spins detent mechanism 1 and is positioned at the sample introduction needle elevating mechanism 2 of sample introduction disc spins detent mechanism one side, described sample introduction disc spins detent mechanism 1 includes the sample introduction dish 12 that is driven by stepper motor 11, the edge of the sample introduction dish sample cup 13 of arranging.A sample introduction dish positioning seat 14 also is installed in the rotating shaft of described sample introduction dish, is fixed with flat initial position fix dish 15 and sample cup positioning disk 16 on the sample introduction dish positioning seat; Be respectively arranged with initial position optoelectronic switch 17 and sample cup location optoelectronic switch 18 at initial position fix dish and sample cup positioning disk one side, initial position fix dish 15 edges have one can be by the initial position fix groove 151 (referring to Fig. 3) of initial position optoelectronic switch 17 identifications, the edge of sample cup positioning disk 16 is placed with the sample cup locating notch 161 that can be located optoelectronic switch 18 identifications by sample cup, the quantity of sample cup locating notch and angle position and the sample cup on the sample introduction dish corresponding (referring to Fig. 4).

Sample introduction needle elevating mechanism 2 comprises a vertical screw mandrel 22 that is directly driven by stepper motor 21, screw mandrel cooperates with a lifting nut 23, lifting nut is connected with sample introduction needle 25 by the cantilever 24 of a level, be provided with a vertical guide plate 26 in screw mandrel the place ahead, have vertical gathering sill 261 on the guide plate, cantilever 24 passes from gathering sill and can move along gathering sill is upper and lower.

Claims

1, a kind of blomelicalbloodgasandelectrolrteanalyzers sampling system, include sample introduction disc spins detent mechanism (1) and be positioned at the sample introduction needle elevating mechanism (2) of sample introduction disc spins detent mechanism one side, described sample introduction disc spins detent mechanism (1) includes the sample introduction dish (12) that is driven by stepper motor (11), the edge of the sample introduction dish sample cup (13) of arranging, it is characterized in that: a sample introduction dish positioning seat (14) is installed in the rotating shaft of described sample introduction dish, is fixed with flat initial position fix dish (15) and sample cup positioning disk (16) on the sample introduction dish positioning seat; Be respectively arranged with initial position optoelectronic switch (17) and sample cup location optoelectronic switch (18) at initial position fix dish and sample cup positioning disk one side, initial position fix dish (15) edge has one can be by the initial position fix notch (151) of initial position optoelectronic switch (17) identification, and the edge of sample cup positioning disk (16) is placed with the sample cup locating notch (161) that can be located optoelectronic switch (18) identification by sample cup.

2, blomelicalbloodgasandelectrolrteanalyzers sampling system according to claim 1, it is characterized in that: sample introduction needle elevating mechanism (2) comprises a vertical screw mandrel (22) that is directly driven by stepper motor (21), screw mandrel cooperates with a lifting nut (23), lifting nut is connected with sample introduction needle (25) by the cantilever (24) of a level, be provided with a vertical guide plate (26) in screw mandrel the place ahead, have vertical gathering sill (261) on the guide plate, cantilever (24) passes from gathering sill and can move along gathering sill is upper and lower.