CN100588944C

CN100588944C - Stool specimen automatic mixing device

Info

Publication number: CN100588944C
Application number: CN200710112838A
Authority: CN
Inventors: 王永幸; 丁春兰; 李方国; 丛珊亭
Original assignee: Jinan Lanjie Biotechnology Co ltd
Current assignee: Jinan Lanjie Biotechnology Co ltd
Priority date: 2007-09-10
Filing date: 2007-09-10
Publication date: 2010-02-10
Anticipated expiration: 2027-09-10
Also published as: CN101122551A

Abstract

The invention discloses a stool specimen automatically mixing device, including a rotary table, a positioning plate, a positioning sleeve, a spindle, a stent, a stepping motor and a controller. The rotary table is connected with an output shaft of the stepping motor through the spindle. The positioning sleeve is connected with the positioning plate. And the positioning sleeve and the positioning plate are arranged on the spindle. The stepping motor is installed on the stent. A signal input end of the controller is connected with the positioning plate and an output end is connected with a control switch of the motor. The rotary table is vertically installed on one end of the spindle. The rotary table is equipped with grooves for carrying specimens. A specimen vessel filled with a stool sample to be tested is put on the groove with a relative label on the rotary table. The controller controls the stepping motor to rotate. And the stepping motor drives the rotary table to rotate. With thecentrifugal force caused by the variable speed rotation of the stepping motor and the effect of the self-gravitation of the specimen, the invention is continuously and repeatedly reversed to mix thespecimen and liquid in an acquisition apparatus. Therefore, the invention has the advantages of high test precision, even mixture, high efficiency, etc.

Description

Stool specimen automatic mixing device

Technical field

The present invention discloses a kind of stool specimen automatic mixing device, belongs to medical checkout equipment class technical field.

Background technology

In the modern life, various diseases constantly occurs, and need during medical science detects the sample of gathering is carried out mixing, but the sample that needs mixing more for a long time, and manually-operated efficient is low, have potential safety hazard and mixing is not thorough.Because the stool sample has than characteristics such as great and aggregation are strong, natural subsidence when therefore utilizing medical measuring device that the stool sample is measured, must be carried out abundant mixing to the sample of defecating earlier easily, could guarantee the accuracy of measurement result like this.It is longer that present mixing stool sample exists incorporation time, mixes even inadequately, sufficient characteristics and cause the cell breakage easily in mixed process, causes the measurement data error bigger, makes The ultimate results inaccurate; Shake up sample with manual type, this way inefficiency and be difficult for realizing robotization.

Summary of the invention

At the deficiency of existing excrement sample mixing technology, the stool specimen automatic mixing device that the invention provides and a kind ofly guarantee that the sample inner cell is complete, accuracy of detection is high, mixes, efficient is high.

The present invention is achieved by the following technical solutions:

The present invention includes rotating disk, spacer, locating sleeve, main shaft, support, stepper motor and controller, wherein, rotating disk is connected with the output shaft of stepper motor by main shaft, locating sleeve is connected with spacer and both are enclosed within on the main shaft, stepper motor is rack-mount, and the controller input signal end is connected with spacer, and output terminal is connected with motor control switch, its turntable vertically is installed in an end of main shaft, and rotating disk is provided with the groove of placing sample.

Described rotating disk is made up of disk, fixed head and pressing plate, the center of disk is porose, main shaft one end is connected in the center pit, fixed head is enclosed within on the main shaft, pressing plate is arranged on the main shaft end face outside and is fixed on the disk, wherein the disk radial position is provided with the groove of placing sample, and described groove circumferentially evenly distributes along disk.

Described controller comprises photoelectric tube, single-chip microcomputer, motor driver, photoelectric tube is connected with the input interface of single-chip microcomputer, the motor driver control end is connected on the interface microcontroller, the motor driver output terminal links to each other with motor control switch, and the control interface of single-chip microcomputer is connected with the output port of host computer by chip MAX232.

Described main shaft is installed on the bearing seat, and locating sleeve and spacer are enclosed within on the main shaft between rotating disk and the bearing seat, and main shaft is connected with the output shaft of stepper motor by shaft coupling.

When the present invention uses, the specimen container that stool sample to be measured is housed is positioned in the groove of corresponding label on the rotating disk, the rotation of controller control step motor drives main shaft by shaft coupling and rotates, and then drives the rotating disk rotation.Speed change by stepper motor is rotated the effect of the centrifugal force that produces and the gravity of sample self, continuous sample and the liquid of back and forth putting upside down in the mixing harvester.After treating that sample mixes automatically, the start position signal that controller is collected according to photoelectric tube, control motor-driven testing sample move to sampler directly over, be convenient to sampling.

The present invention can guarantee that the sample inner cell is complete, speed change by stepper motor is rotated the effect of the gravity of the centrifugal force that produces and sample self, constantly back and forth put upside down sample and liquid in the mixing harvester, have the accuracy of detection height, mix, the efficient advantages of higher.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a rotating disk synoptic diagram of the present invention;

Fig. 3 is a controller circuitry block diagram of the present invention.

Wherein, 1, pressing plate, 2, fixed head, 3, disk, 4, locating sleeve, 5, spacer, 6, big bearing baffle, 7, big bearing, 8, main shaft, 9, little bearing, 10, little bearing baffle, 11, shaft coupling 12, motor fixing seat, 13, stepper motor, 14, photoelectric tube, 15, controller, 16, support.

Embodiment

Embodiment: structure as shown in Figure 1, the present invention includes rotating disk, rotating disk is by being made up of disk 3, fixed head 2 and pressing plate 1, the center of disk 3 is porose, main shaft 8 one ends are connected in the center pit, and fixed head 2 is enclosed within on the main shaft, and pressing plate 1 is arranged on the main shaft end face outside and is fixed on the disk 3, wherein disk 3 radial positions are provided with the groove of placing sample, and described groove circumferentially evenly distributes along disk.Main shaft 3 is arranged on the bearing seat, locating sleeve 4 and spacer 5 are enclosed within on the main shaft 8 between bearing seat and the disk, main shaft is supported by 6302 big bearings 7 and 6300 little bearings 9, and bearing 6302 and 6300 is respectively equipped with big bearing baffle 6 and little bearing baffle 10, motor shaft is connected by shaft coupling 11 with main shaft 8, shaft coupling 11 connects the output shaft of stepper motor 13, stepper motor 13 is fixed on the motor fixing seat 12 on the support, vertically the disk of installing 3 is a disk-like structure, the groove of laying sample collecting apparatus on the disk 3 is arranged in the radial position of sense of rotation, and is circumferentially evenly distribution.

As shown in Figure 3, described controller 15 comprises photoelectric tube, single-chip microcomputer STC89C51, chip MAX232, motor driver, photoelectric tube is connected with the input interface of single-chip microcomputer, the motor driver control end is connected on the interface microcontroller, the motor driver output terminal links to each other with motor control switch, and the control interface of single-chip microcomputer is connected with the output port of host computer by chip MAX232.The interface of single-chip microcomputer STC89C51 also is connected with keyboard and pilot lamp.Host computer sends the mixing instruction, after the STC89C51 single-chip microcomputer receives instruction, give stepper motor driver information, drive stepping motor is rotated, after the fixed time, there is photoelectric tube accurately to locate, return the STC89C51 single-chip machine information, single-chip microcomputer sends and stops the order that stepper motor rotates, and uploads host computer mixing ending message simultaneously.Photoelectric tube 14 is installed on the support 16, when dial rotation, the spacer on the main shaft is along with the space of rotating and all will passing through weekly between the photoelectric tube, and this moment, spacer just cut off the light of photoelectric tube, make photoelectric tube 14 Monitoring and Positioning sheet at any time, thereby judge the reference position of rotating disk.

During use, the specimen container that stool sample to be measured is housed is positioned in the groove of corresponding label on the rotating disk, the rotation of controller 15 control step motors drives main shaft by shaft coupling and rotates, and then drives the rotating disk rotation.Speed change by stepper motor is rotated the effect of the centrifugal force that produces and the gravity of sample self, and continuous sample and the liquid of back and forth putting upside down in the mixing harvester mixes automatically up to sample.

Claims

1, stool specimen automatic mixing device, comprise rotating disk, spacer, locating sleeve, main shaft, support, stepper motor and controller, it is characterized in that: rotating disk is connected with the output shaft of stepper motor by main shaft, locating sleeve is connected with spacer and both are enclosed within on the main shaft, stepper motor is rack-mount, and the controller input signal end is connected with spacer, and output terminal is connected with motor control switch, its turntable vertically is installed in an end of main shaft, and rotating disk is provided with the groove of placing sample; Described controller comprises photoelectric tube, single-chip microcomputer, motor driver, photoelectric tube is connected with the input interface of single-chip microcomputer, the motor driver control end is connected on the interface microcontroller, the motor driver output terminal links to each other with motor control switch, and the control interface of single-chip microcomputer is connected with the output port of host computer by chip MAX232.

2, stool specimen automatic mixing device according to claim 1, it is characterized in that: described rotating disk is made up of disk, fixed head and pressing plate, the center of disk is porose, main shaft one end is connected in the center pit, fixed head is enclosed within on the main shaft, pressing plate is arranged on the main shaft end face outside and is fixed on the disk, and wherein the disk radial position is provided with the groove of placing sample, and described groove circumferentially evenly distributes along disk.

3, stool specimen automatic mixing device according to claim 1, it is characterized in that: described main shaft is installed on the bearing seat, locating sleeve and spacer are enclosed within on the main shaft between rotating disk and the bearing seat, and main shaft is connected with the output shaft of stepper motor by shaft coupling.