CN220932996U - Sample introduction module - Google Patents

Abstract

The utility model discloses a sample injection module, which comprises a base, a driving assembly, a turntable assembly, a code scanning assembly, a leakage collector and a plurality of sensors, wherein the driving assembly, the turntable assembly, the code scanning assembly, the leakage collector and the sensors are arranged on the base; the driving component is used for driving the turntable component to rotate; the turntable assembly is used for loading the sample pipe rack and driving the sample pipe rack to rotate to a designated sample injection position under the action of the driving assembly; the code scanning component is fixed in the middle of the upper part of the turntable component and is used for reading bar code information; the driving component, the turntable component and the code sweeping component are fixed through a supporting shaft; the liquid leakage collector is arranged below the turntable assembly and is used for collecting liquid leakage generated in the sample injection process; the sensor includes a load bit sensor and a sample tube identification sensor. The sampling module provided by the utility model is provided with the leakage collector, so that harm of splashed liquid to a circuit structure is effectively avoided; a loading position sensor is arranged for detecting whether a sample pipe rack is placed or not; and a sample tube identification sensor is arranged for judging the tube diameter of the sample tube.

Description

Sample introduction module

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a sample injection module.

Background

In the field of medical detection, automated detection is a major trend in the development of technology. Automated detection is accomplished by an automated detection instrument. After the sample is placed in the automatic detection instrument, the instrument automatically completes sample detection without manual intervention. The automatic detection instrument is internally provided with a sample injection device for loading and pushing samples, and the sample injection device presents the samples to the sampling device for sampling analysis.

The utility model application number 202210353502.7 discloses a sample processing device with a double-turntable structure, which comprises a base, wherein the base comprises a first turntable, a plurality of transfer liquid receiving units are arranged in the circumferential direction of the first turntable, a second turntable is arranged at the center of the first turntable, and N consumable receiving frames are arranged on the second turntable; the sample transfer device comprises a first rotary table, a second rotary table, a sample transfer module, a sample transfer device and a sample transfer device, wherein the sample transfer device comprises a sample transfer device, a sample receiving rack, a sample transfer device and a sample transfer device. In another embodiment, the utility model of application number 202120369809.7 discloses a turntable module, which comprises a turntable, a turntable moving assembly, a turntable rotating seat, a turntable support plate, a turntable sample and a reagent box, wherein the turntable moving assembly is arranged below the turntable support plate, the turntable is arranged above the turntable support plate, the turntable rotating seat is arranged on the turntable support plate, a plurality of turntable samples and reagent boxes are uniformly distributed on the turntable, and the turntable moving assembly drives the turntable to rotate, so that the detection card after sample adding is transferred to a position corresponding to the turntable transfer seat in the turntable.

In the prior art, the design of the turntable structure enables the sample injection of the sample to be continuous and automatic; however, there are some disadvantages in the identification of the sample tube, the accuracy of sample injection, and the like.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model aims to provide a sample injection module, which is used for loading and unloading a sample pipe frame, wherein a half of space is opened by the sample injection module; the sample injection module can rotate clockwise or anticlockwise, so that the recheck is convenient; the leakage collector is arranged, so that harm of splashed liquid to a circuit structure is effectively avoided; the loading position sensor is used for detecting whether a sample pipe rack is placed on the sample injection module or not; a sample tube identification sensor is arranged for judging the tube diameter of the sample tube on the sample tube rack.

The technical scheme adopted for solving the technical problems is as follows: the sample injection module comprises a base, a driving assembly, a turntable assembly, a code scanning assembly, a leakage collector and a plurality of sensors, wherein the driving assembly, the turntable assembly, the code scanning assembly, the leakage collector and the sensors are arranged on the base; the driving assembly is used for driving the turntable assembly to rotate; the turntable assembly is used for loading the sample pipe rack and driving the sample pipe rack to rotate to a designated sample injection position under the action of the driving assembly; the code scanning component is fixed in the middle of the upper part of the turntable component and is used for reading bar code information on the sample tube rack; the driving assembly, the turntable assembly and the code sweeping assembly are supported and fixed through a supporting shaft; the liquid leakage collector is arranged below the turntable assembly and is used for collecting liquid leakage generated in the sample injection process; the sensor comprises a loading position sensor for judging whether a sample pipe rack is loaded on the turntable or not, and a sample pipe identification sensor for identifying the pipe diameter of the sample pipe.

Further, the driving assembly comprises a motor, a synchronous pulley, a synchronous belt, a code wheel and a zero sensor, wherein the motor is fixed on the base, an output shaft of the motor is connected with the synchronous belt, and the synchronous belt is meshed with the synchronous pulley to drive the synchronous pulley to rotate; the code wheel is arranged above the synchronous pulley, the zero sensor is arranged on the outer side of the code wheel and used for detecting the transmission function of the driving assembly, and resetting the change position.

Further, the turntable assembly comprises a turntable and a turntable support, the turntable support is arranged below the turntable, the turntable is connected with the driving assembly through the turntable support, and the supporting shaft is arranged in the turntable and the turntable support in a penetrating manner; the loading position sensor is arranged at the bottom of the turntable assembly, and the sample tube identification sensor is arranged above the outer side of the turntable.

Further, the turntable assembly further comprises an adapter identification sensor for identifying whether an adapter is arranged on the sample tube rack, and the adapter identification sensor is arranged on the inner side of the turntable.

Further, a plurality of loading positions are uniformly distributed on the turntable according to the circumference, each loading position is separated by a limit strip, and each loading position is provided with a positioning pin for restraining the sample pipe rack; and a loading position label is arranged on the inner side of each loading position.

Further, the code scanning component comprises a bar code reader, a fixed support, an end cover and an indicator lamp, wherein the end cover is fixed above the turntable, the bar code reader is fixed on the end cover through the fixed support, the indicator lamp is installed on the fixed support, and the indicator lamp is used for indicating the movement state of the turntable.

Further, the distance between the bar code reader and the bar code on the sample tube rack is 25-40 mm; the bar code reader is provided with a cover.

Further, a plurality of fixing holes are formed in the outer side of the liquid leakage collector, and the liquid leakage collector is fixedly connected with the base through a fixing shaft penetrating through the fixing holes; half of the liquid leakage collector is in an open state, and the other half of the liquid leakage collector is provided with a fence.

The beneficial effects of the utility model are as follows: compared with the prior art, the sample injection module provided by the utility model can judge whether the corresponding position on the turntable assembly is loaded with the sample pipe rack or not through the design of the loading position sensor; through the design of the code scanning component, code scanning identification is carried out on the sample pipe rack so as to ensure the accuracy of the sample injection sample; the pipe diameters of all sample pipes on a sample pipe rack are identified through the design of a sample pipe identification sensor, and the pipe diameters of the sample pipes are judged; the leakage collector is designed to collect leakage so as to avoid polluting other components; the stainless steel code disc and the zero sensor are designed to detect and correct the rotating position and reset the change position; the design of the sensor is identified through the adapter, and the sensor is used for detecting whether the adapter is placed on the sample pipe rack or not and what the size of the adapter is; the design of each loading position can well meet a series of continuous operations of loading, identifying, sucking samples, recovering and the like of the sample pipe frames, and the detection efficiency is improved.

Drawings

Fig. 1 is a schematic perspective view of a sample injection module provided by the present utility model.

Fig. 2 is a schematic top view of a sample injection module according to the present utility model.

Fig. 3 is an exploded schematic view of the sample injection module provided by the present utility model.

Wherein, 1-the code scanning assembly; 2-end caps; 3-loading bit tags; 4-a turntable; 5-a liquid leakage collector; 6-supporting a turntable; 7-a zero sensor; 8-code disc; 9-a fixed shaft; 10-an electric motor; 11-a base; 12-a synchronous belt; 13-synchronous pulleys; 14-supporting the shaft; 15-load position sensor; 16-locating pins; 17-limiting strips; 18-a housing; 19-indicator lights; 20-sample tube rack loading position; 21-an adapter identification sensor; 22-sample tube identification sensor; 23-sample pipe rack sample introduction buffer storage position; 24-sample sucking position of the sample pipe rack; 25-recovering a buffer storage position of the sample pipe rack; 26-fence.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Examples

As shown in fig. 1 to 3, a sample injection module comprises a base 11, a driving assembly, a turntable assembly, a code scanning assembly 1, a liquid leakage collector 5 and a plurality of sensors, wherein the driving assembly, the turntable assembly, the code scanning assembly 1, the liquid leakage collector 5 and the sensors are arranged on the base 11; the driving assembly is used for driving the turntable assembly to rotate; the turntable assembly is used for loading the sample pipe rack and driving the sample pipe rack to rotate to a designated sample injection position under the action of the driving assembly; the code scanning assembly 1 is fixed in the middle of the upper part of the turntable assembly, and the code scanning assembly 1 is used for reading bar code information on the sample tube rack; the driving assembly, the turntable assembly and the code scanning assembly 1 are supported and fixed through a supporting shaft 14; the liquid leakage collector 5 is arranged below the turntable assembly and is used for collecting liquid leakage generated in the sample injection process; the sensors include a loading position sensor 15 for judging whether the sample tube rack is loaded on the turntable 4, and a sample tube identification sensor 22 for identifying the tube diameter of the sample tube.

When the sample injection module works, firstly, a sample pipe rack is loaded on the turntable assembly, and whether the sample pipe rack is loaded at the corresponding position on the turntable assembly or not can be judged by the loading position sensor 15; the rotary table assembly loaded with the sample pipe rack rotates to a designated sample injection position under the action of the driving assembly, and before entering the sample injection position, the code scanning assembly 1 can scan and identify the sample pipe rack so as to ensure the accuracy of sample injection samples; meanwhile, before entering the sample injection position, the sample tube identification sensor 22 identifies the tube diameter of each sample tube on the sample tube rack and judges the tube diameter of the sample tube; in the process of rotating the sample tube on the turntable assembly and in the process of preparing sample injection at the sample injection position, the generated leaked liquid can be collected by the leaked liquid collector 5, so that other assemblies cannot be polluted.

In one embodiment, the driving assembly comprises a motor 10, a synchronous pulley 13, a synchronous belt 12, a code wheel 8 and a zero sensor 7, wherein the motor 10 is fixed on the base 11, an output shaft of the motor 10 is connected with the synchronous belt 12, and the synchronous belt 12 is meshed with the synchronous pulley 13 to drive the synchronous pulley 13 to rotate; the code wheel 8 is arranged above the synchronous pulley 13, and the zero sensor 7 is arranged on the outer side of the code wheel 8 and used for detecting the transmission function of the driving assembly and resetting the change position. When the driving assembly works, the motor 10 is a two-phase stepping motor, and the motor 10 is fixed on the base 11 through screws; the synchronous belt 12 drives the synchronous belt pulley 13 to rotate, so that the torque output by the motor 10 is transmitted to the turntable assembly, and finally the sample tube rack is driven to rotate to a designated sample injection position. The stainless steel coded disc 8 and the zero sensor 7 are used for detecting the transmission function of the driving assembly and resetting the change position.

In one embodiment, the turntable assembly comprises a turntable 4 and a turntable support 6, the turntable support 6 is arranged below the turntable 4, the turntable 4 is connected with the driving assembly through the turntable support 6, and the supporting shaft 14 is arranged in the turntable 4 and the turntable support 6 in a penetrating way; the turntable 4 is fixed to the turntable support 6 by hand-screwed screws, which have the effect of allowing quick removal of the turntable 4, so that the bottom of the turntable 4, which may be inadvertently contaminated, can be cleaned. The loading position sensor 15 is arranged at the bottom of the turntable assembly, and the sample tube identification sensor 22 is arranged above the outer side of the turntable 4. When the turntable assembly works, the sample tube rack is loaded on the turntable 4, and the turntable 4 is connected to the supporting shaft 14 through the turntable support 6 and driven by the driving assembly; the loading position sensor 15 can judge whether the corresponding position of the turntable 4 is loaded with the sample tube rack; the sample tube identification sensor 22 is used for judging the tube diameter of the sample tube.

In one embodiment, the turntable assembly further comprises an adapter identification sensor 21 for identifying whether an adapter is arranged on the sample tube rack, and the adapter identification sensor 21 is arranged on the inner side of the turntable 4. The adapter is mainly used for adapting different micro-collection containers, and the adapter identification sensor 21 is used for detecting whether the adapter is placed on the sample tube rack or not and what the size of the adapter is.

In one embodiment, the turntable 4 is uniformly provided with a plurality of loading positions according to the circumference, each loading position is separated by a limit bar 17, and each loading position is provided with a positioning pin 16 for restraining the sample pipe rack; the inner side of each loading position is provided with a loading position label 3. In this embodiment, the number of loading bits is 6. The sample tube rack loading device comprises 3 sample tube rack loading positions 20 for placing or taking away the sample tube racks; 1 sample pipe rack sample introduction buffer position 23, 1 sample pipe rack sample suction position 24 and 1 sample pipe rack recovery buffer position 25, wherein the sample pipe rack sample suction position 24 is arranged between the sample pipe rack sample introduction buffer position 23 and the sample pipe rack recovery buffer position 25; the roles of the 6 loading positions described above are also constantly changing during the rotation of the turntable 4. The region where the loading position sensor 15 is located is a sample pipe rack loading position 20, and the positions where the sample pipe identification sensor 22 and the adapter identification sensor 21 are located are arranged between a sample pipe rack sample injection buffer position 23 and the sample pipe rack loading position 20; the design of each loading position can well meet a series of continuous operations of loading, identifying, sucking samples, recovering and the like of the sample pipe frames, and improves the detection efficiency. The design of the limit strips 17 and the locating pins 16 ensures that the sample pipe rack can be stably placed on the corresponding loading position without deviation, and improves the detection precision and the detection efficiency; a load bit tag 3 is provided inside each load bit for identifying different load bits to avoid confusion.

In one embodiment, the code scanning assembly 1 includes a bar code reader, a fixing bracket, an end cover 2 and an indicator light 19, wherein the end cover 2 is fixed above the turntable 4, and the end cover 2 can prevent the supporting shaft 14 from moving upwards to perform a fixing function. The bar code reader is fixed on the end cover 2 through the fixed support, the indicator light 19 is installed on the fixed support, and the indicator light 19 is used for indicating the motion state of the turntable 4. The indicator light 19 is an LED light, which indicates that the current state of the dial 4 includes static, about to rotate, and rotating. When the LED lights continue to illuminate green, the carousel 4 will not move, nor will it move immediately, meaning that the user can load/unload the sample tube rack in an accessible position when the lid is opened. When the LED light flashes yellow, indicating that the movement of the dial 4 is about to start, this means that the user needs to close the cover. When the LED light is normally bright yellow, this indicates that the dial 4 is moving, which means that the user cannot load and unload the sample tube holder in an accessible position.

In one embodiment, the distance between the bar code reader and the bar code on the sample tube rack is 25-40 mm, and the height is adjusted to completely comprise the area capable of covering the bar code; the bar code reader may cover a sample tube area of about 70mm at this point. The bar code reader is provided with a housing 18.

In one embodiment, a plurality of fixing holes are formed on the outer side of the leakage collector 5, and the leakage collector 5 is fixedly connected with the base 11 through a fixing shaft 9 penetrating through the fixing holes; the leakage collector 5 is arranged, so that harm of splashed liquid to a circuit structure is effectively avoided. Half of the leakage collector 5 is in an open state, and the other half is provided with a fence 26; an open half of the space may be used for loading and unloading the sample tube rack.

The above embodiments are only for illustrating the present utility model, not for limiting the present utility model, and various changes and modifications may be made by one of ordinary skill in the relevant art without departing from the spirit and scope of the present utility model, and therefore, all equivalent technical solutions are also within the scope of the present utility model, and the scope of the present utility model is defined by the claims.

Claims (8)

1. A sample introduction module, characterized in that: the sample injection module comprises a base, a driving assembly, a turntable assembly, a code scanning assembly, a liquid leakage collector and a plurality of sensors, wherein the driving assembly, the turntable assembly, the code scanning assembly, the liquid leakage collector and the sensors are arranged on the base; the driving assembly is used for driving the turntable assembly to rotate; the turntable assembly is used for loading the sample pipe rack and driving the sample pipe rack to rotate to a designated sample injection position under the action of the driving assembly; the code scanning component is fixed in the middle of the upper part of the turntable component and is used for reading bar code information on the sample tube rack; the driving assembly, the turntable assembly and the code sweeping assembly are supported and fixed through a supporting shaft; the liquid leakage collector is arranged below the turntable assembly and is used for collecting liquid leakage generated in the sample injection process; the sensor comprises a loading position sensor for judging whether a sample pipe rack is loaded on the turntable or not, and a sample pipe identification sensor for identifying the pipe diameter of the sample pipe.

2. The sample introduction module of claim 1, wherein: the driving assembly comprises a motor, a synchronous belt pulley, a synchronous belt, a code disc and a zero sensor, wherein the motor is fixed on the base, an output shaft of the motor is connected with the synchronous belt, and the synchronous belt is meshed with the synchronous belt pulley to drive the synchronous belt pulley to rotate; the code wheel is arranged above the synchronous pulley, and the zero sensor is arranged on the outer side of the code wheel.

3. The sample introduction module of claim 1, wherein: the rotary table assembly comprises a rotary table and a rotary table support, the rotary table support is arranged below the rotary table, the rotary table is connected with the driving assembly through the rotary table support, and the supporting shaft is arranged in the rotary table and the rotary table support in a penetrating manner; the loading position sensor is arranged at the bottom of the turntable assembly, and the sample tube identification sensor is arranged above the outer side of the turntable.

4. A sample introduction module as defined in claim 3, wherein: the turntable assembly further comprises an adapter identification sensor for identifying whether an adapter is arranged on the sample tube rack, and the adapter identification sensor is arranged on the inner side of the turntable.

5. A sample introduction module as defined in claim 3, wherein: a plurality of loading positions are uniformly distributed on the turntable according to the circumference, each loading position is separated by a limiting strip, and each loading position is provided with a positioning pin for restraining the sample pipe rack; and a loading position label is arranged on the inner side of each loading position.

6. The sample introduction module of claim 1, wherein: the code scanning component comprises a bar code reader, a fixed support, an end cover and an indicator lamp, wherein the end cover is fixed above the turntable, the bar code reader is fixed on the end cover through the fixed support, the indicator lamp is arranged on the fixed support, and the indicator lamp is used for indicating the movement state of the turntable.

7. The sample introduction module of claim 6, wherein: the distance between the bar code reader and the bar code on the sample tube rack is 25-40 mm; the bar code reader is provided with a cover.

8. The sample introduction module of claim 1, wherein: the outer side of the leakage liquid collector is provided with a plurality of fixing holes, and the leakage liquid collector is fixedly connected with the base through a fixing shaft penetrating through the fixing holes; half of the liquid leakage collector is in an open state, and the other half of the liquid leakage collector is provided with a fence.