WO2022063141A1 - Reaction vessel supply apparatus and reaction vessel supply method - Google Patents

Abstract

A reaction vessel supply apparatus and a reaction vessel supply method. The reaction vessel supply apparatus comprises: a fixed bracket (1), comprising at least two mounting plates (11); at least two conveying devices (2) that are respectively and movably connected to the at least two mounting plates (11) in a one-to-one correspondence mode, wherein each conveying device (2) comprises a pair of guide plate members (20) arranged opposite to each other, a supply channel (21) is formed between the pair of guide plate members (20), and the conveying devices (2) supply a plurality of reaction vessels (C) by means of the supply channels (21); and a controller used for monitoring the running state of one conveying device (2) that currently is in a working mode and supplies the reaction vessel (C), wherein when the running state is abnormal, the current conveying device (2) is closed, and the other conveying device (2) of at least two conveying devices (2) is started to continuously supply the reaction vessel (C). The apparatus can continuously supply the reaction vessels, shortens the time of shutting down and processing an abnormal problem, and improves the working efficiency of a whole machine.

Description

Reaction vessel supply device and reaction vessel supply method

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of Chinese Patent Application No. 202011001581.2, filed on September 22, 2020, entitled "Reaction Vessel Supply Device and Reaction Vessel Supply Method", the entire content of which is incorporated herein by reference.

technical field

The present invention relates to the technical field of medical diagnosis, in particular to a reaction container supply device and a reaction container supply method.

Background technique

In the field of medical diagnosis, when testing and analyzing body fluid samples such as blood and urine, the samples and reaction reagents need to be loaded into the reaction container together for testing. The steps of supplying, loading samples and reaction reagents, detection and analysis, and recycling of waste reaction containers in reaction containers need to be transported through an assembly line to realize batch detection and analysis operations. The existing reaction vessel supply device is set separately, and needs to be shut down for maintenance when a fault occurs, which greatly reduces the detection and analysis efficiency of the whole machine.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a reaction container supply device and a reaction container supply method, the reaction container supply device can continuously supply the reaction container, which is beneficial to improve the working efficiency of the whole machine.

In one aspect, the present invention provides a reaction vessel supplying device, comprising: a fixing frame, including at least two mounting plates; at least two conveying devices, respectively movably connected with the at least two mounting plates in a one-to-one correspondence; each conveying device The device comprises a pair of guide plates arranged opposite to each other, a supply channel is formed between the pair of guide plates, and the conveying device supplies a plurality of reaction vessels through the supply channel; the controller is used to monitor the supply of a conveying device currently in the working mode to the reaction vessels When the operating state is abnormal, the current conveying device is turned off, and the other conveying device in the at least two conveying devices is activated to continue supplying the reaction vessel.

According to an aspect of the embodiment of the present invention, the supply channel of each conveying device has a feeding position and a feeding position along its own length direction, and a first sensor is provided on the guide plate corresponding to the feeding position, which is used for reaching the reaction vessel when the reaction vessel reaches the feeding position. A first signal is sent to the controller when the discharge position is in, and a second signal is sent to the controller when the reaction vessel is removed.

According to an aspect of the embodiment of the present invention, the controller is further configured to count the number of times of the first signal sent by the first sensor of the conveying device currently in the working mode, and when the number of times of the first signal is equal to the supply threshold of the reaction vessel, determine The current operating status of the conveyor is abnormal.

According to an aspect of the embodiment of the present invention, the controller is further configured to determine the running state of the current conveying device when the first signal or the second signal sent by the first sensor of the conveying device currently in the working mode is not received within a predetermined time. is abnormal.

According to an aspect of the embodiment of the present invention, the fixing frame further includes a bottom plate, the bottom plate is used to support at least two conveying devices, an end of the bottom plate corresponding to the supply channel is provided with a first magnetic member, and the guide plate member is provided with a second magnetic member and the second sensor, after the conveying device moves to a predetermined position along the mounting plate, the first magnetic piece and the second magnetic piece are attracted together, and the second sensor is triggered to send a third signal to the controller.

According to an aspect of the embodiment of the present invention, a fixing member is further provided at one end of the bottom plate corresponding to the supply channel, a positioning pin is arranged on the fixing member, a pin hole matched with the positioning pin is correspondingly arranged on the guiding plate member, and the conveying device moves along the mounting plate After reaching the predetermined position, the positioning pin extends into the pin hole.

According to an aspect of the embodiment of the present invention, each conveying device includes: a support plate, which is movably connected to the mounting plate, and a pair of guide plate members is fixedly connected to the support plate; a turntable, which is rotatably connected to the support plate, and the turntable includes a rotating shaft and A pair of discs are coaxially connected by the rotating shafts and arranged at intervals; a conveyor belt, one end of which is wound on the rotating shaft between the pair of discs; The side of the conveyor belt facing away from the rotating shaft; the runner assembly is connected to the support plate, the runner assembly is arranged between the turntable and the guide plate, and the other end of the conveyor belt is wound around the runner assembly, which is used to introduce the reaction vessel on the conveyor belt into the supply channel.

According to an aspect of the embodiment of the present invention, the runner assembly includes: a drive motor, which is electrically connected to the controller and rotatably connected to the support plate; a driving wheel, which is coaxially connected to the output shaft of the driving motor, and is provided on the driving There is an annular groove, and the other end of the conveyor belt is wound on the annular groove; the first guide wheel and the second guide wheel are respectively located between the turntable and the driving wheel, and are in frictional contact with the conveyor belt. When the conveyor belt is introduced into the supply channel, the second guide wheel is located on the side of the first guide wheel away from the turntable and above the supply channel for separating the reaction vessel from the conveyor belt.

According to an aspect of the embodiment of the present invention, the first center line between the center axis of the first guide wheel and the center axis of the second guide wheel is L1, and the distance between the center axis of the second guide wheel and the center axis of the driving wheel is L1. The second center connecting line between them is L2, and the included angle θ between the first center connecting line L1 and the second center connecting line L2 is θ≥90°.

According to an aspect of the embodiment of the present invention, the reaction vessel has ears that are arranged oppositely, and the ears are connected to the conveyor belt, and a side of each guide plate facing the supply channel is provided with an inwardly recessed groove; the ears that are arranged oppositely The width dimension d1 between them is larger than the width dimension d2 of the conveyor belt and smaller than the distance d3 between the pair of grooves.

According to an aspect of the embodiment of the present invention, the reaction vessel supplying device further includes a cover assembly, the cover assembly includes a cover plate and a protruding portion, the cover plate covers the supply channel between the second guide wheel and the discharging position, and the protruding portion is provided with On the side of the cover plate facing the supply channel, the protruding part is telescopically inserted into the supply channel below the second guide wheel.

According to an aspect of the embodiment of the present invention, a convex column and a locking pin rotatably connected to the convex column are provided on the support plate corresponding to the rotating shaft of the rotating plate, the rotating shaft is sleeved on the outer peripheral side of the convex column, and is pressed into it by the locking pin. An elastic piece is arranged between one disc body and the other disc body and the support plate.

On the other hand, the present invention also provides a reaction container supply method of the aforementioned reaction container supply device, comprising: obtaining the operation state information of the supply device supplied to the reaction container by the conveying device currently in the working mode; when the operation state information is abnormal When , a stop signal is sent to the current conveying device; the other conveying device among the at least two conveying devices is activated to continue supplying the reaction vessel.

The present invention provides a reaction container supplying device and a reaction container supplying method. By providing at least two conveying devices that can be pushed and pulled, when an abnormality occurs in the supply of one of the conveying devices to the reaction container, the other conveying device can be replaced, so that the Continuously supply the reaction vessel, reduce the time of downtime to deal with abnormal problems, and improve the working efficiency of the whole machine. In addition, the overall structure of the reaction vessel supplying device is compact and space-saving, which is favorable for being arranged in the pipeline detection and analysis equipment.

Description of drawings

Features, advantages, and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the drawings, the same components are given the same reference numerals. The drawings are not drawn to actual scale.

1 is a schematic three-dimensional structure diagram of a reaction vessel supply device provided in an embodiment of the present invention;

Fig. 2 is the side view structure schematic diagram of the reaction vessel supply device shown in Fig. 1 along the direction A;

Fig. 3 is the partial enlarged structural schematic diagram of the region D of the reaction vessel supply device shown in Fig. 2;

Fig. 4 is a partial enlarged structural schematic diagram of region B of the reaction vessel supply device shown in Fig. 1;

Fig. 5 is the structural representation of the conveying device in the reaction vessel supplying device shown in Fig. 1;

Fig. 6 is the exploded structure schematic diagram of the conveying device shown in Fig. 5;

7 is a schematic view of the assembly structure of the reaction vessel and the conveyor belt in the reaction vessel supply device shown in FIG. 5;

8 is a schematic top view of the structure of the lid assembly in the reaction vessel supply device shown in FIG. 5;

FIG. 9 is a schematic view of the rear structure of the cover assembly in the reaction vessel supply device shown in FIG. 5;

FIG. 10 is a flowchart of a method for supplying a reaction vessel according to an embodiment of the present invention.

detailed description

Features and exemplary embodiments of various aspects of the present application are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating examples of the present application. In the drawings and the following description, at least some well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present application; and, the dimensions of some structures may be exaggerated for clarity. Furthermore, the features, structures or characteristics described below may be combined in any suitable manner in one or more embodiments.

In order to better understand the present invention, the reaction vessel supplying device and the reaction vessel supplying method provided by the embodiments of the present invention will be described in detail below with reference to FIGS. 1 to 10 .

Please refer to FIG. 1 to FIG. 3 together, an embodiment of the present invention provides a reaction vessel supply device, including: a fixing frame 1 , at least two conveying devices 2 and a controller (not shown in the figure).

The fixing frame 1 includes at least two mounting plates 11 , and the at least two conveying devices 2 are respectively movably connected with the at least two mounting plates 11 in a one-to-one correspondence. Each conveying device 2 includes a pair of guide plates 20 disposed opposite to each other, a supply channel 21 is formed between the pair of guide plates 20 , and the conveying device 2 supplies a plurality of reaction vessels C through the supply channel 21 .

The conveying device 2 can be movably connected to the mounting plate 11 through a moving device, for example, the moving device can include a guide rail 111 and a slider 112 slidably connected to the guide rail 111 , the guide rail 111 is fixedly connected to the mounting plate 11 , and the conveying device 2 is fixed to the slider 112 Connected, the extending direction of the guide rail 111 is the moving direction of the conveying device 2 . The conveying device 2 is movably arranged relative to the mounting plate 11 , which facilitates pulling the conveying device 2 from the fixing frame 1 for inspection, maintenance, loading the reaction vessel C, etc., and then pushing the conveying device 2 to the fixing frame 1 .

In order to improve the fixed stability of the conveying device 2 , two moving devices may be arranged at intervals in the height direction of each conveying device 2 . In order to reduce the weight of the fixing frame 1 and improve the rigidity of the fixing frame 1 , the mounting plate 11 may be partially hollowed out, which will not be repeated here. In addition, the number of the conveying devices 2 is at least two, one of the conveying devices 2 is in the current working mode, and the rest of the conveying devices 2 are standby. The at least two conveying devices 2 are respectively movably connected to the at least two mounting plates 11 in a one-to-one correspondence.

The controller is used to monitor the running state of the reaction vessel C supplied by one conveying device 2 currently in the working mode; when the operating state is abnormal, the current conveying device 2 is closed, and the other conveying device 2 in the at least two conveying devices 2 is activated to Continue to supply reaction vessel C. The controller can be installed in any position, for example, it can be fixed on the fixing frame 1, and it can also be fixed on a position other than the reaction vessel supply device.

When the controller determines that the running state of one conveying device 2 currently in the working mode is abnormal, the current conveying device 2 can be turned off, and another conveying device 2 can be activated to continue supplying the reaction container C. The closed conveying device 2 can be pulled out from the fixing frame 1 for maintenance work such as overhaul, and after the repair is completed, it can be pushed into the original position as a spare conveying device 2 . The whole maintenance process does not affect the normal operation of the other conveying device 2, so that the reaction vessel C can be continuously supplied, the time for stopping the process of abnormal problems is reduced, and the working efficiency of the whole machine is improved.

Optionally, at least two mounting plates 11 of the fixing frame 1 are arranged in parallel, so that at least two conveying devices 2 are arranged side by side, and when they are applied to the assembly line of the sample analysis device, it is convenient for the manipulator to follow the same direction perpendicular to the side-by-side direction. Move to the supply channel 21 of any designated conveying device 2, and grab the reaction container C, simplify the movement path of the manipulator, and improve the detection efficiency of the sample analysis device.

In the reaction vessel supplying device provided by the embodiment of the present invention, by setting at least two conveying devices 2 that can be pushed and pulled, when an abnormality occurs in the supply of one of the conveying devices 2 to the reaction vessel, it can be replaced with another conveying device 2, so that it can be Continuously supply the reaction vessel C, reduce the time of shutdown to deal with abnormal problems, and improve the working efficiency of the whole machine. In addition, the overall structure of the reaction vessel supplying device is compact and space-saving, which is favorable for being arranged in the pipeline detection and analysis equipment.

The specific structure of a reaction vessel supplying device provided in an embodiment of the present invention will be described in further detail below with reference to the accompanying drawings. For the convenience of description, the embodiment of the present invention is described by taking the reaction vessel supply device including two conveying devices 2 as an example.

Please refer to FIG. 1 and FIG. 4 together, the supply channel 21 of each conveying device 2 has a feeding position P1 and a discharging position P2 along its own length direction, and a first sensor is provided on the guide plate 20 corresponding to the discharging position P2 201, for sending a first signal to the controller when the reaction container C reaches the discharging position P2, and sending a second signal to the controller when the reaction container C is taken away.

Optionally, the first sensor 201 is a photoelectric sensor. The first signal indicates that the reaction container C has reached the discharging position P2. At this time, the controller can control the conveying device 2 to suspend the conveying of the reaction container C, so as to facilitate the removal of the reaction container C by a manipulator or manually. The second signal indicates that the reaction container C at the discharging position P2 is empty, which means that the reaction container C has been taken away. At this time, the controller can control the conveying device 2 to continue conveying the next reaction container C.

As an optional implementation manner, the controller is further configured to count the number of times of the first signal sent by the first sensor 201 of the conveying device 2 currently in the working mode, and when the number of times of the first signal is equal to the supply threshold of the reaction vessel C When the current operating state of the conveying device 2 is determined to be abnormal.

The number of times the first signal sent by the first sensor 201 is the number of reaction vessels C that have been supplied to the discharge position P2. The supply threshold of the reaction vessels C refers to the threshold value of the quantity of the reaction vessels C that have been supplied in place, and the threshold value may be, for example, 99.5% of the total quantity. For example, if the total number of reaction vessels C that can be supplied by the conveying device 2 is 1000, the supply threshold is 995. When the number of times of the first signal sent by the first sensor 201 is equal to the supply threshold of the reaction container C, it means that the remaining amount of the reaction container C is insufficient, so the controller determines that the current operating state of the conveying device 2 is abnormal and needs to be switched to another conveying device 2, and reload the reaction vessel C for the conveyor 2.

As an optional implementation manner, the controller is further configured to determine the current conveying device 2 when the first signal or the second signal sent by the first sensor 201 of the conveying device 2 currently in the working mode is not received within a predetermined time. The running status is abnormal.

The predetermined time is, for example, 1s. If the controller does not receive the first signal or the second signal within the predetermined time, it means that the reaction container C may be stuck due to the failure of the conveying device 2. Therefore, the controller judges that the current conveying device 2 is blocked. The operating state is abnormal, and it is necessary to switch to another conveying device 2 and eliminate the failure of the conveying device 2 .

As mentioned above, when the controller judges that the current operating state of the conveying device 2 is abnormal, the conveying device 2 needs to be pulled out from the fixed frame 1 along the moving device for maintenance, and then the conveying device 2 is pushed to the fixed frame 1 after the maintenance. . At this time, it is necessary to ensure that the conveying device 2 is pushed to the original position to avoid safety accidents when the conveying device 2 is started.

Specifically, the fixing frame 1 further includes a bottom plate 12, the bottom plate 12 is used to support at least two conveying devices 2, one end of the bottom plate 12 corresponding to the supply channel 21 is provided with a first magnetic member 121, and the guide plate member 20 is provided with a first magnetic member 121. Two magnetic pieces 203 and a second sensor 202, after the conveying device 2 moves to a predetermined position along the mounting plate 11, the first magnetic piece 121 and the second magnetic piece 203 are attracted together, and the second sensor 202 is triggered to send a third Signal.

Optionally, the first magnetic member 121 is a magnet, and the second magnetic member 203 is a metal member with magnetic attraction properties, such as an iron plate, a nickel plate or an iron-nickel alloy plate, the outer surface of which is coated with an anti-corrosion coating. Optionally, the second magnetic member 203 may also be an electrolytic lead galvanized sheet, that is, a galvanized layer on the surface of the cold-rolled sheet. Optionally, the second sensor 202 is a micro switch, and the micro switch is a switch triggered by a physical mechanism, which is not disturbed by the properties of the triggering object itself, which can effectively solve the problem of false detection caused by the photoelectric sensor in the past. The second magnetic member 203 and the second sensor 202 are located in the same plane. When the first magnetic member 121 and the second magnetic member 203 are attracted together, it means that the conveying device 2 moves to a predetermined position along the mounting plate 11. At this time, the first magnetic The component 121 can just touch the second sensor 202, thereby triggering the second sensor 202 to send a third signal to the controller. The third signal indicates that the conveying device 2 has moved to a predetermined position along the mounting plate 11 and can be switched to the working mode at any time.

In addition, as shown in FIG. 3 , magnetic beads O are preset in the reaction container C, which are used for subsequent mixing of samples and reaction reagents, and functional modules such as magnetic bead detection. In order to prevent the first magnetic member 121 from magnetizing the magnetic beads O in the reaction container C and affecting the detection result of the magnetic beads, the height difference between the first magnetic member 121 and the reaction container C needs to meet a preset distance. The preset distance is related to the magnitude of the magnetic force of the first magnetic member 121, and is determined according to the specific application.

Due to the processing error of the mounting plate 11 and other components or the assembly error of the guide rail 111 and the slider 112, etc., the conveying device 2 may be offset in the direction in which at least two conveying devices 2 are arranged side by side, resulting in the conveying device 2 . Abrasion occurs during operation, which is not conducive to the conveying accuracy of the reaction vessel C supplied by the conveying device 2 .

In order to solve this problem, one end of the bottom plate 12 corresponding to the supply channel 21 is further provided with a fixing member 122, the fixing member 122 is provided with a positioning pin 123, and the guide plate member 20 is correspondingly provided with a pin hole 204 which is matched with the positioning pin 123. 2. After moving to a predetermined position along the mounting plate 11, the positioning pin 123 extends into the pin hole 204. Through the cooperation of the positioning pin 123 and the pin hole 204, the conveying device 2 can be quickly positioned. At the same time, the continuous magnetic attraction force generated between the first magnetic member 121 and the second magnetic member 203 can ensure that the conveying device 2 does not move in the side-by-side direction, further improving the conveying accuracy of the conveying device 2 for supplying the reaction container C.

Please refer to FIG. 5 to FIG. 7 together, each conveying device 2 includes a support plate 22 , a turntable 23 , a conveyor belt 24 and a wheel assembly 25 .

The support plate 22 is movably connected to the mounting plate 11 , and a pair of guide plate members 20 are fixedly connected to the support plate 22 . Specifically, the support plate 22 is connected with the slider 112 of the aforementioned moving device, so as to realize the movable connection between the support plate 22 and the mounting plate 11 . The support plate 22 also includes a bent portion 223 parallel to the bottom plate 12 , and a pair of guide plate members 20 are disposed on the bent portion 223 to form the supply channel 21 .

The turntable 23 is rotatably connected to the support plate 22 , and the turntable 23 includes a rotating shaft 231 and a pair of disc bodies 232 coaxially connected to the rotating shaft 231 and arranged at intervals.

One end of the conveyor belt 24 is wound on the rotating shaft 231 between the pair of disc bodies 232 , the conveyor belt 24 is provided with a plurality of reaction vessels C arranged in sequence along its length direction, and the reaction vessels C are located on the side of the conveyor belt 24 away from the rotating shaft 231 .

The runner assembly 25 is connected to the support plate 22 , the runner assembly 25 is arranged between the turntable 23 and the guide plate 20 , and the other end of the conveyor belt 24 is wound around the runner assembly 25 for guiding the reaction vessel C on the conveyor belt 24 into to the supply channel 21 .

Further, the runner assembly 25 includes: a driving motor 251 , a driving runner 252 , a first guide wheel 253 and a second guide wheel 254 .

The drive motor 251 is electrically connected to the controller and connected to the support plate 22 . The driving wheel 252 is coaxially connected with the output shaft of the driving motor 251 , an annular groove 252 a is provided on the driving wheel 252 , and the other end of the conveyor belt 24 is wound on the annular groove 252 a. Specifically, the driving motor 251 and the driving wheel 252 are respectively disposed on both sides of the support plate 22 to drive the driving wheel 252 to drive the conveyor belt 24 to rotate.

The first guide wheel 253 and the second guide wheel 254 are respectively located between the turntable 23 and the driving wheel 252, and are in frictional contact with the conveyor belt 24. The first guide wheel 253 is arranged close to the turntable 23 and is used to guide the conveyor belt 24 into the supply channel 21. The second guide wheel 254 is located on the side of the first guide wheel 253 away from the turntable 23 and above the supply channel 21 , and is used for separating the reaction vessel C from the conveyor belt 24 .

As shown in FIG. 5 , the driving motor 251 drives the driving wheel 252 to rotate in the counterclockwise direction, and drives the conveyor belt 24 to move in the direction of the arrow in the figure. Under the guidance of the wheel 254 , it is wound onto the annular groove 252 a of the driving wheel 252 , and at the same time, the plurality of reaction containers C set on the conveyor belt 24 are transported into the supply channel 21 below the second guide wheel 254 .

Wherein, when the conveyor belt 24 passes the second guide wheel 254 , the reaction container C is separated from the conveyor belt 24 and falls into the supply channel 21 below the second guide wheel 254 . The separation of the reaction vessel C and the conveyor belt 24 is related to the layout of the components of the runner assembly 25 and the structure of the supply channel 21 .

On the one hand, as shown in FIG. 5 , the first center line between the center axis of the first guide wheel 253 and the center axis of the second guide wheel 254 is L1, and the center axis of the second guide wheel 254 and the driving wheel 252 The second center connecting line between the central axes of , is L2, and the included angle θ between the first center connecting line L1 and the second center connecting line L2 is θ≥90°.

Since the angle θ between the first center line L1 and the second center line L2 is greater than or equal to 90°, when the conveyor belt 24 is introduced into the supply channel 21 by the first guide wheel 253 and is in frictional contact with the second guide wheel 254, The reaction vessel C shown on the far right of FIG. 5 tends to separate from the upwardly moving conveyor belt 24 under the action of its own gravity.

On the other hand, as shown in FIG. 3 and FIG. 7 , the reaction vessel C has ear portions E that are provided opposite to each other, and the ear portions E are connected to the conveyor belt 24 . Specifically, the reaction container C further includes a container body C1, the oppositely arranged ears E are connected to the container body C1, and a fixed column C2 is provided on the ear E, and the fixed column C2 passes through the through hole on the conveyor belt 24, so as to connect the reaction The ears E of the containers C are connected to the conveyor belt 24 . The side of each guide plate 20 facing the supply channel 21 is provided with an inwardly concave groove 205 , the width dimension d1 between the oppositely arranged ears E is greater than the width dimension d2 of the conveyor belt 24 and smaller than a pair of grooves 205 distance d3 between.

After the conveyor belt 24 is introduced into the supply channel 21 , it moves toward the driving wheel 252 under the guidance of the second guide wheel 254 , thereby driving the reaction container C to move upward, and the ear E of the reaction container C is guided by a pair of guide plates 20 . The groove 205 provided inside blocks, and the conveyor belt 24 continues to move upward toward the driving wheel 252 through the groove 205, while the reaction container C moves downward under the action of its own gravity, so that the conveyor belt 24 is separated from the reaction container C. The reaction vessel C falls into the supply channel 21 .

Please refer to FIG. 4, FIG. 7 to FIG. 9 together. The reaction vessel supply device further includes a cover assembly 3. The cover assembly 3 includes a cover plate 31 and a protruding portion 32. The cover plate 31 is covered with the second guide wheel 254 and the discharge position. In the supply channel 21 between P2, the extension 32 is disposed on the side of the cover plate 31 facing the supply channel 21, and the extension 32 is retractably inserted into the supply channel 21 below the second guide wheel 254.

As shown in FIGS. 8 and 9 , the cover assembly 3 further includes a toggle member 33 and a hinge 34 , and the cover plate 31 is pivotally connected with the guide plate member 20 through the hinge 34 to open or close the supply channel 21 . The toggle member 33 is disposed on the side of the cover plate 31 away from the supply channel 21 and is connected to the extension portion 32 . One end of the protruding part 32 is telescopically inserted between the second guide wheel 254 and the reaction vessel C in the supply channel 21, and the other end is provided with a cylinder, the outer casing of the cylinder is provided with a spring (not shown in the figure), and the cover plate 31 is correspondingly provided with holes matched with the cylinder and the spring, so that the protruding portion 32 can be telescopically moved relative to the cover plate 31 . When the toggle member 33 is moved in the direction of the arrow in Fig. 8, the protruding portion 32 can be inserted into the supply channel 21 below the second guide wheel 254. When the toggle member 33 is moved in the opposite direction to the direction of the arrow in FIG. 8 , the protruding portion 32 is withdrawn from the supply channel 21 below the second guide wheel 254 , so that the cover plate 31 can be turned over around the hinge 34 to open the supply channel twenty one.

As shown in FIG. 7 , the magnetic beads O are preset in the reaction container C. When the conveyor belt 24 is separated from the reaction container C, the opening H of the reaction container C is opened, and the reaction container C moves downward and falls into the supply channel 21. The beads O tend to escape towards the opening H of the reaction vessel C due to inertia. By moving the toggle member 33 to the left, the protruding portion 32 can be inserted into the supply channel 21 below the second guide wheel 254, and cover the opening H of the reaction vessel C just separated from the conveyor belt 24, thereby preventing magnetic Bead O escapes from opening H. In addition, the cover plate 31 covers the supply channel 21 between the second guide wheel 254 and the discharge position P2, which can prevent impurities such as dust from falling into the reaction container C, and avoid affecting the cleanliness of subsequent samples and the results of sample analysis. accuracy.

When most of the conveyor belt 24 wound by the rotating shaft 231 of the turntable 23 is wound on the annular groove 252a of the driving wheel 252 and the conveyor belt 24 is in a tensioned state, the conveyor belt 24 cannot drive the reaction vessel C to continue to move toward the supply channel 21. The controller recognizes that the operating state of the conveying device 2 is abnormal, and controls the drive motor 251 to stop. At this time, a small amount of reaction containers C will fall into the supply channel 21 and cannot continue to move to the discharge position P2. Remove the conveying device 2 from the fixing frame 1, move the toggle member 33 to the right, and then turn the cover plate 31 around the pivot of the hinge 34, and then a small amount of the reaction container C falling into the supply channel 21 can be manually taken out, Avoid affecting the count of reaction vessels C set on the new conveyor belt 24 .

If the count of the reaction vessel C does not need to be considered, the controller can judge the current operating state of the conveying device 2 by not receiving the first signal or the second signal sent by the first sensor 201 of the conveying device 2 currently in the working mode within a predetermined time. , you can also manually move a small amount of reaction containers C to a suitable position, for example, the reaction container C at the front of the queue is moved to the discharge position P2, and the rest of the reaction containers C are arranged in sequence without affecting the movement of the new conveyor belt 24, so as to avoid wasting reactions container C. Then, the cover plate 31 is turned over around the hinge 34, so that the cover plate 31 is covered with the supply channel 21, the toggle member 33 is moved to the left, and the new conveyor belt 24 is reloaded into the rotating shaft 231 of the turntable 23 and the wheel assembly 25, move the conveying device 2 to the original position of the fixed frame 1 as a backup conveying device.

Referring to FIG. 6 again, the support plate 22 of the conveying device 2 is provided with a convex column 221 and a locking pin 222 rotatably connected to the convex column 221 corresponding to the rotating shaft 231 of the turntable 23. The rotating shaft 231 is sleeved on the outer peripheral side of the convex column 221, The lock pin 222 is press-fitted to one of the disk bodies 232 , and an elastic member 26 is provided between the other disk body 232 and the support plate 22 .

Optionally, the elastic member 26 is an O-shaped rubber ring. Since the force arm of the locking pin 222 pressing against the disc body 232 is short, the disc body 232 is not easily pressed. An elastic member 26 is arranged between the disk body 232 and the support plate 22 , which can increase the friction force generated by the extrusion between the disk body 232 and the support plate 22 to achieve the purpose of preventing loosening.

Referring to FIG. 10 , an embodiment of the present invention further provides a reaction vessel supply method of the reaction vessel supply device as described above, including:

Step S1: obtaining the operating state information supplied to the reaction vessel C by the conveying device 2 currently in the working mode;

Step S2: when the running state information is abnormal, send a stop signal to the current conveying device 2;

Step S3: Activate the other conveying device 2 of the at least two conveying devices 2 to continue supplying the reaction vessel C.

As mentioned above, when the controller judges that the current operating state of the conveying device 2 is abnormal, it may be that the remaining capacity of the reaction vessel C is insufficient, or that the current conveying device 2 is faulty, and the conveying device 2 needs to be moved along the moving device. Pull out from the fixing frame 1 for maintenance, for example, reload the reaction container C for the conveying device 2, eliminate the failure of the conveying device 2, and then push the conveying device 2 to the original position of the fixing frame 1 after the maintenance. The maintenance process does not affect the normal operation of other conveying devices 2 , so that the reaction vessel C can be continuously supplied, the time for stopping the process of abnormal problems is reduced, and the working efficiency of the whole machine is improved.

Those skilled in the art should understand that the above-mentioned embodiments are all illustrative and not restrictive. Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Those skilled in the art should be able to understand and implement other variant embodiments of the disclosed embodiments on the basis of studying the drawings, the description and the claims. In the claims, the term "comprising" does not exclude other means or steps; an item is intended to include one/one or more/kinds of items when not modified by a quantifier, and may be combined with "one/one or more/kinds of items" "Used interchangeably"; the terms "first", "second" are used to designate names and not to indicate any particular order. Any reference signs in the claims should not be construed as limiting the scope of protection. The functions of the multiple parts appearing in the claims can be realized by a single hardware or software module. The appearance of certain technical features in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims (13)

1. A reaction vessel supply device, characterized in that, comprising:

   a fixing frame, including at least two mounting plates;

   At least two conveying devices are respectively movably connected with the at least two mounting plates in a one-to-one correspondence; each conveying device includes a pair of guide plates disposed opposite to each other, and a supply is formed between the pair of guide plates a channel, the conveying device supplies a plurality of reaction vessels through the supply channel;

   The controller is used to monitor the running state of one of the conveying devices currently in the working mode for supplying the reaction vessel; when the operating state is abnormal, close the current conveying device, and start at least two of the conveying devices. Another said delivery device to continue feeding said reaction vessel.
2. The reaction vessel supplying device according to claim 1, wherein the supplying channel of each conveying device has a feeding position and a discharging position along its own length direction, and the guide plate corresponds to the The discharge position is provided with a first sensor for sending a first signal to the controller when the reaction vessel reaches the discharge position, and to send a first signal to the controller when the reaction vessel is taken away. Second signal.
3. The reaction vessel supplying device according to claim 2, wherein the controller is further configured to count the number of times the first signal is sent by the first sensor of the conveying device currently in the working mode, and When the number of times of the first signal is equal to the supply threshold of the reaction vessel, it is determined that the current operating state of the conveying device is abnormal.
4. The reaction vessel supply device according to claim 2, wherein the controller is further configured to not receive the first sensor sent by the first sensor of the conveying device currently in the working mode within a predetermined time. When a signal or the second signal is present, it is determined that the current operating state of the conveying device is abnormal.
5. The reaction vessel supply device according to claim 1, wherein the fixing frame further comprises a bottom plate, the bottom plate is used for supporting the at least two conveying devices, and one end of the bottom plate corresponding to the supply channel A first magnetic piece is arranged, a second magnetic piece and a second sensor are arranged on the guide plate piece, and after the conveying device moves to a predetermined position along the mounting plate, the first magnetic piece and the second magnetic piece The magnets snap together and trigger the second sensor to send a third signal to the controller.
6. The reaction vessel supply device according to claim 5, wherein a fixing member is further provided at one end of the bottom plate corresponding to the supply channel, the fixing member is provided with a positioning pin, and the guide plate member is correspondingly provided There are pin holes matched with the positioning pins, and after the conveying device moves to the predetermined position along the mounting plate, the positioning pins extend into the pin holes.
7. The reaction vessel supply device according to claim 1, wherein each of the conveying devices comprises:

   a support plate, which is movably connected to the mounting plate, and the pair of guide plate members is fixedly connected to the support plate;

   a turntable, rotatably connected to the support plate, the turntable comprises a rotating shaft and a pair of disc bodies coaxially connected to the rotating shaft and arranged at intervals;

   A conveyor belt, one end of which is wound on the rotating shaft between the pair of discs, the conveyor belt is provided with a plurality of the reaction vessels arranged in sequence along its length direction, and the reaction vessels are located on the conveyor belt the side away from the shaft;

   a runner assembly, connected to the support plate, the runner assembly is arranged between the turntable and the guide plate, the other end of the conveyor belt is wound around the runner assembly, and used to rotate the The reaction vessels on the conveyor are introduced into the supply channel.
8. The reaction vessel supply device according to claim 7, wherein the runner assembly comprises:

   a driving motor, electrically connected with the controller, and connected with the support plate;

   a driving wheel, coaxially connected with the output shaft of the driving motor, an annular groove is arranged on the driving wheel, and the other end of the conveyor belt is wound on the annular groove;

   The first guide wheel and the second guide wheel are respectively located between the turntable and the driving wheel, and are in frictional contact with the conveyor belt. The first guide wheel is arranged close to the turntable and is used to move the conveyor belt Introduced into the supply channel, the second guide wheel is located on the side of the first guide wheel away from the turntable and above the supply channel, for separating the reaction vessel from the conveyor belt.
9. The reaction vessel supplying device according to claim 8, wherein the first center connecting line between the center axis of the first guide wheel and the center axis of the second guide wheel is L1, and the second The second center connecting line between the center axis of the guide wheel and the center axis of the driving wheel is L2, and the angle between the first center connecting line L1 and the second center connecting line L2 is θ≥ 90°.
10. The reaction vessel supply device according to claim 7, wherein the reaction vessel has oppositely arranged ears, and the ears are connected with the conveyor belt, and each of the guide plates faces the supply channel An inwardly concave groove is provided on one side of the belt, and the width dimension d1 between the oppositely arranged ears is larger than the width dimension d2 of the conveyor belt, and smaller than the distance d3 between the pair of grooves.
11. The reaction vessel supply device according to claim 8, wherein the reaction vessel supply device further comprises a cover assembly, the cover assembly includes a cover plate and a protruding portion, the cover plate is covered with the second guide The supply channel between the wheel and the discharge position, the protruding part is arranged on the side of the cover plate facing the supply channel, and the protruding part is retractably inserted into the second guide in the supply channel below the wheel.
12. The reaction vessel supply device according to claim 7, wherein a convex column and a locking pin rotatably connected to the convex column are provided on the support plate corresponding to the rotating shaft of the turntable, and the rotating shaft is sleeved An elastic member is arranged on the outer peripheral side of the protruding column and is press-fitted to one of the disk bodies through the lock pin, and between the other disk body and the support plate.
13. A reaction vessel supply method of the reaction vessel supply device according to any one of claims 1 to 12, characterized in that, comprising:

    Obtain the running state information of the reaction vessel supplied by the conveying device currently in the working mode;

    When the operating state information is abnormal, send a stop signal to the current conveying device;

    The other of the at least two of the delivery devices is activated to continue feeding the reaction vessel.

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