CN216387087U - Reaction cup sequencing device - Google Patents

Abstract

The utility model relates to a reaction cup sequencing device, which is characterized in that reaction cups are lifted to the height of a flow channel by adopting a mode of synchronous reverse motion of an upper screening plate and a lower screening plate or equidirectional screening of a plurality of layers of screening plates, the flow channel is arranged to be an inclined structure, so that the reaction cups can orderly flow to the direction of a regulating disc along the flow channel by means of self gravity, in addition, the reaction cup sequencing device is also provided with an upper sensor, a lower sensor and a control unit, and the control unit controls the work of a driving module based on the detection results of the upper sensor and the lower sensor so as to automatically control the feeding and sequencing of the reaction cups.

Description

Reaction cup sequencing device

Technical Field

The utility model relates to the technical field of reaction cup sequencing, in particular to a reaction cup sequencing device which is used in a medical instrument and can automatically screen and sequence reaction cups according to requirements and lead out the reaction cups according to the required states for subsequent use.

Background

In the field of medical device technology, for example, in the field of an extracorporeal detection apparatus, a reaction cup is usually required to react a sample and a reagent before the sample and the reagent enter the extracorporeal detection apparatus for detection when detecting blood and body fluid. At present, the mode of sequencing reaction cups mainly comprises a mode of manually adding reaction cups and sequencing and a mode of feeding and sequencing reaction cups through sequencing equipment, however, the mode of manually adding reaction cups has low efficiency and human errors exist. The existing sequencing equipment is generally a chain type sequencing structure or an array stripping type sequencing structure, and has the advantages of complex structural design, large volume, high cost and high failure rate.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a cuvette sorter, which has a compact size, a high degree of automation, high reliability and low cost.

A reaction cup sequencing device comprises a base, a reaction cup container arranged on the base, a flow channel connected with the reaction cup container, a regulating disc connected with the flow channel, and a lifting screening mechanism used for screening and sequencing reaction cups in the reaction cup container and then feeding the reaction cups into the flow channel, wherein the lifting screening mechanism comprises a driving module, a linkage structure linked with the driving module, and an upper screening plate and a lower screening plate which are respectively arranged at two sides of the linkage structure, the upper screening plate is close to the flow channel, the tops of the upper screening plate and the lower screening plate are inclined planes, one side of the inclined plane close to the flow channel is lower than the other side of the inclined plane, when the driving module is started, the linkage structure drives the upper screening plate and the lower screening plate to reciprocate up and down to lift the reaction cups in the reaction cup container to the height of the flow channel in two stages, reaction cups on the upper screening plate enter the flow channel under the guidance of the inclined plane, and one end of the flow channel connected with the reaction cup container is higher than one end connected with the adjusting disc, so that the reaction cups flowing into the flow channel can orderly flow to the adjusting disc under the action of gravity.

In one embodiment of the utility model, the dial plate is rotatably connected to the flow channel to enable the reaction cup to be dispatched to a designated position for access.

In an embodiment of the present invention, the cuvette sorter further includes a control unit and a detection module communicably connected to the control unit, the detection module includes an upper sensor and a lower sensor, the upper sensor is disposed at an end of the flow channel close to the cuvette container, the lower sensor is disposed at an end of the flow channel close to the dial plate, the control unit controls the driving module to operate when the lower sensor does not detect that a cuvette is present on the dial plate, and the control unit controls the driving module to stop operating when the upper sensor detects a cuvette.

In an embodiment of the present invention, the cuvette sequencing device further includes a partition plate, the partition plate has an inclined plate extending downward from the flow channel toward the bottom of the cuvette container and a baffle plate formed by extending the inclined plate toward the bottom of the cuvette container, and the partition plate divides the cuvette container into a preparation area and a screening area.

In an embodiment of the present invention, the cuvette sequencing device further includes a front bracket disposed on the cuvette container, and two ends of the front bracket are respectively and fixedly connected to the flow channel and the partition plate.

In an embodiment of the utility model, the cuvette sequencing device further includes a window disposed in the cuvette container.

In one embodiment of the present invention, the end of the bottom of the cuvette container far away from the lower screening plate is higher than the end of the bottom of the cuvette container near to the lower screening plate, i.e. the bottom of the cuvette container is an inclined surface, so that the cuvette can move to the top of the lower screening plate by its own weight.

In an embodiment of the present invention, the driving module is any one of a driving motor, a cylinder, and an oil cylinder.

In an embodiment of the present invention, the linkage structure is any one of a belt, a cam, a link, and a gear.

A reaction cup sequencing device comprises a base, a reaction cup container arranged on the base, a flow channel connected with the reaction cup container, a regulating disc connected with the flow channel, and a lifting screening mechanism used for screening and sequencing reaction cups in the reaction cup container and then feeding the reaction cups into the flow channel, wherein the lifting screening mechanism comprises a driving module, a linkage structure linked with the driving module, and a multi-level screening plate connected with the linkage structure, the multi-level screening plate comprises a plate body and a screening plate movably arranged in a spacing groove of the plate body, the plate body consists of a plurality of laminated plates with the heights gradually rising towards the direction close to the flow channel, the spacing groove is formed between every two adjacent laminated plates, the tops of each laminated plate and each screening plate are respectively provided with a guide inclined surface, one side of each guide inclined surface close to the flow channel is lower than the other side, the adjacent layer plates and the screening plates form a layer, when the driving module is started, the linkage structure sequentially drives the layer to ascend and descend once to advance the position of the reaction cup, when the reaction cup is lifted to the height of the flow channel, the reaction cup enters the flow channel through the guide inclined plane of the layer plate, one end of the flow channel connected with the reaction cup container is higher than one end connected with the adjusting disc, and therefore the reaction cup flowing into the flow channel can orderly flow to the adjusting disc under the action of gravity.

The reaction cup sequencing device is small in size, compact in structure, high in automation degree, high in reliability and low in cost, and through the design of a new structural layout, the size and the weight of an instrument are reduced, the problem that manual sequencing is efficient and large in error is solved, the defects that a large-scale full-automatic analysis instrument is complex in structure, high in cost and high in failure rate are overcome, and the reaction cup sequencing device has the advantages of being high in automation integration degree, high in reliability, simple in structure and low in cost.

The reaction cup sequencing device provided by the utility model has the advantages that the reaction cups are lifted to the height of the flow channel in a way of lifting the reaction cups for one time or multiple times, the flow channel is arranged to be of an inclined structure, so that the reaction cups can orderly flow to the direction of the adjusting disc along the flow channel by means of the gravity of the reaction cups, in addition, the reaction cup sequencing device is also provided with an upper sensor, a lower sensor and a control unit, the control unit controls the work of the driving module based on the detection results of the upper sensor and the lower sensor, so that the feeding and sequencing of the reaction cups can be automatically controlled, and the reaction cup sequencing device is high in automation degree and high in reliability.

Further objects and advantages of the utility model will be fully apparent from the ensuing description and drawings.

Drawings

Fig. 1 is a schematic perspective view of the cuvette sequencing apparatus according to the first preferred embodiment of the present invention.

Fig. 2 is a schematic perspective view of the cuvette sequencing apparatus according to the first preferred embodiment of the present invention from another perspective.

FIG. 3 is a schematic diagram of an operating state of the cuvette sequencing apparatus according to the first preferred embodiment of the present invention.

FIG. 4 is a schematic view of another operation state of the cuvette sequencing apparatus according to the first preferred embodiment of the present invention.

Fig. 5 is a schematic structural diagram of the cuvette sequencing apparatus according to the second preferred embodiment of the present invention, which illustrates an operating state of the cuvette sequencing apparatus.

FIG. 6 is a schematic structural diagram of the cuvette sequencing apparatus according to the second preferred embodiment of the present invention, which illustrates another operation state of the cuvette sequencing apparatus.

The reference numbers illustrate: a reaction cup sorting device 100; a base 11; a reaction cup container 12; a reserve area 121; a screening area 122; a partition plate 13; the inclined plate 131; a baffle 132; a front bracket 14; a window 15; a flow passage 20; a dial 30; a fill level 31; a lifting screening mechanism 40; a drive module 41; the linkage structure 42; an upper screening plate 43; a lower screening plate 44; a ramp 401; a multi-level screening plate 45; a plate body 451; a laminate 452; the partition groove 453; a movable plate 454; a guide slope 455; a control unit 51; a detection module 52; an upper sensor 521; a lower sensor 522.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the utility model, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be understood by those skilled in the art that in the present disclosure, the terms "vertical," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above terms should not be construed as limiting the present invention.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 4, the structure of the cuvette sequencing apparatus 100 according to the first preferred embodiment of the present invention is specifically illustrated.

As shown in fig. 1 and 2, the cuvette sorter 100 includes a base 11, a cuvette container 12 disposed on the base 11, a flow channel 20 connected to the cuvette container 12, an adjustment disc 30 connected to the flow channel 20, and an elevating and lowering mechanism 40, wherein the elevating and lowering mechanism 40 is configured to feed cuvettes in the cuvette container 12 into the flow channel 20 after sorting, the elevating and lowering mechanism 40 includes a driving module 41, a linkage structure 42 linked to the driving module 41, and an upper sorting plate 43 and a lower sorting plate 44 respectively disposed at two sides of the linkage structure 42, the upper sorting plate 43 is close to the flow channel 20, and tops of the upper sorting plate 43 and the lower sorting plate 44 are an inclined plane 401, one side of the inclined plane 401 is close to the flow channel 20 and is lower than the other side, wherein when the driving module 41 is activated, the linkage structure 42 drives the upper screening plate 43 and the lower screening plate 44 to reciprocate up and down, so as to lift the reaction cups in the reaction cup container 12 to the height of the flow channel 20 in two stages, the reaction cups on the upper screening plate 43 enter the flow channel 20 under the guidance of the inclined plane 401, and one end of the flow channel 20 connected to the reaction cup container 12 is higher than one end connected to the dial plate 30, so that the reaction cups flowing into the flow channel 20 can orderly flow to the dial plate 30 under the action of gravity.

It should be noted that the adjusting disc 30 is rotatably connected to the flow channel 20 and is provided with a plurality of material positions 31 at intervals, and the adjusting disc 30 can be rotated by a motor or other external force to dispatch the reaction cup to a designated position for taking.

It is understood that the reaction cup can be a reaction cup or a reagent tube of an experimental detection instrument or a medical detection instrument, that is, the reaction cup sequencing device 100 of the present invention can be used in the medical detection field or the biochemical research detection field, and the application of the reaction cup sequencing device 100 of the present invention is not limited.

It will also be appreciated that in this preferred embodiment of the present invention, the elevating and lowering mechanism 40 raises the cuvettes in the cuvette holder 12 to the level of the flow path 20 in two stages by moving the upper and lower sieve plates 43 and 44 in opposite directions in synchronism with each other.

Optionally, the driving module 41 is any one of a driving motor, an air cylinder, and an oil cylinder. The linkage structure 42 is any one of a belt, a cam, a connecting rod and a gear.

Specifically, in the preferred embodiment of the present invention, the driving module 41 is a driving motor, the linkage structure 42 is a belt, the upper screening plate 43 and the lower screening plate 44 are respectively fixed on two sides of the belt, and the belt is driven by the driving motor to rotate, so that the upper screening plate 43 and the lower screening plate 44 on two sides synchronously perform reverse movement.

More specifically, the driving motor drives the belt to rotate via a belt pulley, and the base 11 is further provided with a guide rail for the belt to rotate.

In particular, the cuvette sorter 100 further includes a control unit 51 and a detection module 52 communicably connected to the control unit 51, the detection module 52 includes an upper sensor 521 and a lower sensor 522, the upper sensor 521 is disposed at an end of the flow path 20 close to the cuvette container 12, the lower sensor 522 is disposed at an end of the flow path 20 close to the dial 30, the control unit 51 controls the activation of the driving module 41 when the lower sensor 522 does not detect a cuvette at the dial 30, and the control unit 51 controls the deactivation of the driving module 41 when the upper sensor 521 detects a cuvette.

It should be noted that the control unit 51 may be a control circuit board integrated on the driving motor or a central processing unit integrated on the cuvette sequencing device 100, which is not limited in the present invention.

Further, as shown in fig. 3 and 4, the cuvette sequencing apparatus 100 further includes a partition plate 13, the partition plate 13 has an inclined plate 131 extending downward from the flow channel 20 toward the bottom of the cuvette container 12, and a baffle 132 formed by extending the inclined plate 131 toward the bottom of the cuvette container 12, and the partition plate 13 divides the cuvette container 12 into a preparation area 121 and a screening area 122.

It is worth mentioning that the end of the bottom of the cuvette holder 12 remote from the lower screen plate 44 is higher than the end close to the lower screen plate 44, i.e. the bottom of the cuvette holder 12 has an inclined surface for the cuvette to move to the top of the lower screen plate 44 by its own weight.

It can be understood that, since the partition plate 13 has the inclined plate 131 and the baffle plate 132, the reaction cup container 12 can be divided into the stock area 121 and the screening area 122, wherein the area of the reaction cup container 12 above the partition plate 13 is the stock area 121, and the area of the reaction cup container 12 below the partition plate 13 is the screening area 122, when the reaction cup container 12 is placed in a reaction cup, the reaction cup is transited from the stock area 121 to the screening area 122, and the moving track of the reaction cup is shown by an arrow in fig. 3, so that the blockage caused by a disordered reaction cup can be avoided, thereby ensuring the sequencing efficiency and reliability of the reaction cup sequencing device 100.

Furthermore, the cuvette sequencing device 100 further comprises a front bracket 14 disposed on the cuvette container 12, two ends of the front bracket 14 are fixedly connected to the flow channel 20 and the partition plate 13, respectively, and the front bracket 14 is used for fixing and supporting the flow channel 20 and the partition plate 13, so that the structure of the cuvette sequencing device 100 is more stable and compact.

It should be noted that the cuvette sequencing apparatus 100 further includes a window 15 disposed in the cuvette container 12, and the window 15 is used for observing the condition of the cuvette inside the cuvette container 12.

The working process of the reaction cup sequencing device 100 is as follows: pouring a plurality of reaction cups into the reaction cup container 12, wherein the reaction cups are in a disordered state in the reaction cup container 12, when no reaction cup is detected by the lower sensor 522, the driving motor drives the belt to rotate, the belt drives the upper screening plate 43 and the lower screening plate 44 to do lifting motion, when the upper screening plate 43 moves upwards, the reaction cup on the top of the upper screening plate 43 is pushed to the same height as the flow channel 20, the reaction cup automatically falls into the flow channel 20 under the action of the inclined plane 401 of the upper screening plate 43, and the reaction cup flows to the bottom of the flow channel 20 to the adjusting disc 30 under the action of gravity; while the upper screening plate 43 is moving upward, the lower screening plate 44 is moving downward in the reverse direction until the bottom of the cuvette container 12 catches the next cuvette; when the belt moves reversely, the upper screening plate 43 moves downwards, the lower screening plate 44 moves upwards, when the top of the upper screening plate 43 is lower than the lower screening plate 44, the reaction cups on the lower screening plate 44 fall to the top of the upper screening plate 43, and the reaction cups are automatically sequenced in a reciprocating way; the reaction cups are orderly arranged in the flow channels 20 in the process; when the upper sensor 521 detects that there are reaction cups, which represents that the flow channel 20 is full of reaction cups, or the dial plate 30 is full, or the number of sequenced reaction cups reaches the required number, the driving motor is controlled to stop moving;

when the reaction cup enters the adjusting disc 30, the adjusting disc 30 rotates under the action of a motor or other external force to adjust the reaction cup to a specified position, and other mechanisms take away the reaction cup at the specified position;

when the lower sensor 522 does not detect a reaction cup, the driving motor is controlled to continue to drive the sieve cup until the upper sensor 521 detects a reaction cup, and the process is repeated.

It is worth mentioning that fig. 3 illustrates a state that the belt drives the upper screening plate 43 to move so that the reaction cup reaches the height of the flow channel 20, and at this time, the lower screening plate 44 moves to the bottom of the reaction cup container 12 just synchronously, and fig. 4 illustrates a state that the belt drives the upper screening plate 43 and the lower screening plate 44 to move synchronously and reversely to a state that the upper screening plate 43 and the lower screening plate 44 are aligned, that is, they are in a middle position.

It can be understood that the upper screening plate 43 and the lower screening plate 44 of the present invention are driven by the same driving mechanism, i.e. the same driving motor, to synchronously and reversely move, and complete relay in the working process, so that the reaction cups can orderly flow into the flow channel 20 according to the design after being sorted twice, which is beneficial to reducing the failures caused by disorder of the reaction cups on the top of the screening plate and ensuring the reliability of the reaction cup sorting device 100.

It can be further understood that by adopting the structure of the upper screening plate 43 and the lower screening plate 44 with the inclined surface 401, it is possible to control one reaction cup to be held in the flow channel 20 at a time, i.e. the number of reaction cups entering the flow channel 20 can be effectively controlled, and no congestion is caused.

It can also be understood that the baffle plate 13 is arranged in the reaction cup container 12, reaction cups are preliminarily separated in the stock area 121 and the screening area 122 before screening by the lifting screening mechanism 40, the number of the reaction cups entering the screening area 122 is small, and the screening and sequencing process is not easy to jam.

In general, the present invention provides a cuvette sorter 100 that is compact, highly automated, reliable and inexpensive.

As shown in FIGS. 5 and 6, a detailed structure of the cuvette sequencing apparatus 100 according to the second preferred embodiment of the present invention is illustrated.

Specifically, the cuvette sequencing apparatus 100 includes a base 11, a cuvette container 12 disposed on the base 11, a runner 20 connected to the cuvette container 12, an adjustment dial 30 connected to the runner 20, and an elevating and lowering sieving mechanism 40 for sieving and sequencing cuvettes in the cuvette container 12 and feeding the sorted cuvettes into the runner 20, the elevating and lowering sieving mechanism 40 includes a driving module 41, a linkage structure 42 linked to the driving module 41, and a multi-stage sieving plate 45 connected to the linkage structure 42, the multi-stage sieving plate 45 includes a plate body 451 and a movable plate 454 movably disposed in a partition 453 of the plate body 451, the plate body 451 is composed of a plurality of plates 452 having heights gradually increased toward the runner 20, the partition 453 is formed between two adjacent plates 452, each plate 452 and a top of each movable plate 454 have a guide slope 455, the guiding inclined plane 455 is located at a position lower than the other side of the flow channel 20, and the adjacent layer plate 452 and the movable plate 454 form a level, wherein when the driving module 41 is activated, the linkage structure 42 sequentially drives the level to move up and down one step by one step, and the reaction cup enters the flow channel 20 through the guiding inclined plane 455 of the layer plate 452 until the reaction cup is lifted to the height of the flow channel 20, and one end of the flow channel 20 connected to the reaction cup container 12 is higher than one end connected to the adjusting disc 30, so that the reaction cup flowing into the flow channel 20 can sequentially flow to the adjusting disc 30 under the action of gravity.

It is worth mentioning that, in the state where the multi-stage screening plate 45 is moved to the bottom of the cuvette collating device 100 as shown in fig. 5, and in the state where the multi-stage screening plate 45 is moved to the top of the flow channel 20 as shown in fig. 6, in the second preferred embodiment, the cuvette collating device 100 raises the position of the cuvettes one by one through a plurality of stages, and the number of cuvettes in each stage is limited, thereby preventing the occurrence of the jam.

It is understood that the second preferred embodiment is a modification of the first preferred embodiment, and the structure of the cuvette sequencing device 100 of the second preferred embodiment is the same as that of the first preferred embodiment except that the structure of the elevating and screening mechanism 40 is different from that of the first preferred embodiment.

It is further understood that the first preferred embodiment employs a mode of synchronous reverse movement of the upper and lower screening plates 44, the second preferred embodiment employs a mode of multi-level equidirectional screening with the same movement, each liter is lowered to go up and down one position, and the multi-level screening plate 45 may be a two-level screening plate, a three-level screening plate, a four-level screening plate or a plurality of levels of screening plates 45, which is not limited in the present invention.

In general, the reaction cup sequencing device 100 of the utility model has the advantages of small volume, compact structure, high automation degree, high reliability and low cost, reduces the volume and weight of the instrument on the one hand, avoids the problems of high error caused by manual sequencing efficiency on the other hand, avoids the defects of complex structure, high cost and high failure rate of a large-scale full-automatic analysis instrument on the other hand, and has the advantages of high automation integration degree, high reliability, simple structure and low cost.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A reaction cup sequencing device is characterized by comprising a base, a reaction cup container arranged on the base, a flow channel connected with the reaction cup container, a regulating disc connected with the flow channel, and a lifting screening mechanism used for screening and sequencing reaction cups in the reaction cup container and then sending the reaction cups into the flow channel, wherein the lifting screening mechanism comprises a driving module, a linkage structure linked with the driving module, and an upper screening plate and a lower screening plate which are respectively arranged at two sides of the linkage structure, the upper screening plate is close to the flow channel, the tops of the upper screening plate and the lower screening plate are inclined planes, one side of the inclined plane close to the flow channel is lower than the other side of the inclined plane, when the driving module is started, the linkage structure drives the upper screening plate and the lower screening plate to reciprocate up and down to lift the reaction cups in the reaction cup container to the height of the flow channel in two stages, reaction cups on the upper screening plate enter the flow channel under the guidance of the inclined plane, and one end of the flow channel connected with the reaction cup container is higher than one end connected with the adjusting disc, so that the reaction cups flowing into the flow channel can orderly flow to the adjusting disc under the action of gravity.

2. The cuvette sequencing apparatus of claim 1, wherein the dial plate is rotatably connected to the flow channel to enable deployment of cuvettes to designated locations for access.

3. The cuvette sequencing apparatus of claim 1, further comprising a control unit and a detection module communicably connected to the control unit, wherein the detection module comprises an upper sensor disposed at an end of the flow channel close to the cuvette container and a lower sensor disposed at an end of the flow channel close to the dial plate, the control unit controls the driving module to be activated when the lower sensor does not detect a cuvette in the dial plate, and the control unit controls the driving module to be deactivated when the upper sensor detects a cuvette.

4. The sequencing apparatus of any one of claims 1 to 3, further comprising a partition having an inclined plate extending downward from the flow channel in a direction toward the bottom of the reaction cup receptacle and a baffle plate formed by the inclined plate extending in a direction toward the bottom of the reaction cup receptacle, the partition dividing the reaction cup receptacle into a preparation zone and a screening zone.

5. The cuvette sequencing apparatus of claim 4, further comprising a front bracket disposed on the cuvette container, wherein two ends of the front bracket are fixedly connected to the flow channel and the partition plate, respectively.

6. The cuvette sequencing apparatus of any one of claims 1 to 3, further comprising a window disposed in the cuvette holder.

7. The cuvette sequencing apparatus of any one of claims 1 to 3, wherein an end of the bottom of the cuvette container remote from the lower screen plate is higher than an end close to the lower screen plate, i.e. the bottom of the cuvette container is an inclined surface, so that the cuvettes can move to the top of the lower screen plate by their own weight.

8. The reaction cup sequencing device of any one of claims 1 to 3, wherein the driving module is any one of a driving motor, a cylinder and a cylinder.

9. The cuvette sequencing apparatus of any one of claims 1 to 3, wherein the linkage structure is any one of a belt, a cam, a link, and a gear.

10. A reaction cup sequencing device is characterized by comprising a base, a reaction cup container arranged on the base, a flow channel connected with the reaction cup container, a regulating disc connected with the flow channel, and a lifting screening mechanism used for screening and sequencing reaction cups in the reaction cup container and then feeding the reaction cups into the flow channel, wherein the lifting screening mechanism comprises a driving module, a linkage structure linked with the driving module, and a multi-level screening plate connected with the linkage structure, the multi-level screening plate comprises a plate body and screening plates movably arranged in spacing grooves of the plate body, the plate body consists of a plurality of laminated plates with the heights gradually rising towards the direction close to the flow channel, the spacing grooves are formed between every two adjacent laminated plates, the tops of each laminated plate and each screening plate are provided with guide inclined planes, and one side of each guide inclined plane close to the flow channel is lower than the other side, the adjacent layer plates and the screening plates form a layer, when the driving module is started, the linkage structure sequentially drives the layer to ascend and descend once to advance the position of the reaction cup, when the reaction cup is lifted to the height of the flow channel, the reaction cup enters the flow channel through the guide inclined plane of the layer plate, one end of the flow channel connected with the reaction cup container is higher than one end connected with the adjusting disc, and therefore the reaction cup flowing into the flow channel can orderly flow to the adjusting disc under the action of gravity.

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