CN112897018B

CN112897018B - Reaction vessel screening device and reaction vessel supplementing equipment using same

Info

Publication number: CN112897018B
Application number: CN202011574565.2A
Authority: CN
Inventors: 侯礼川; 向裕; 柳邦源; 林艳
Original assignee: Zhuhai Livzon Diagnostics Inc
Current assignee: Zhuhai Livzon Diagnostics Inc
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2022-05-03
Anticipated expiration: 2040-12-25
Also published as: CN112897018A

Abstract

A reaction vessel screening device and a reaction vessel supplementing device using the same relate to the technical field of medical instruments, and the reaction vessel screening device comprises a fixed frame, wherein an accommodating space for holding a reaction vessel is arranged on the fixed frame; the reaction container screening device also comprises a pushing piece and a driver, wherein the pushing piece is connected with the fixed frame in a sliding way and comprises a first pushing piece for pushing the reaction container in the wrong state out of the accommodating space along a first direction and a second pushing piece for pushing the reaction container in the correct state out of the accommodating space along a second direction different from the first direction; the driver is fixedly connected with the fixed frame so as to drive the first pushing piece and the second pushing piece to reciprocate in the accommodating space. The reaction vessel screening device can screen out reaction vessels in different states, so that the error rate of sample detection is reduced.

Description

Reaction vessel screening device and reaction vessel supplementing equipment using same

Technical Field

The invention relates to the technical field of medical instruments, in particular to a reaction vessel screening device and reaction vessel supplementing equipment using the same.

Background

Currently, in vitro diagnosis is a widely used diagnostic method in the medical field, and judges human pathological changes by collecting body fluids, excretions and secretions of a human body to perform chemical composition or chemical reaction analysis. Such as chemiluminescence analysis, molecular diagnosis, immunodiagnosis, etc. In a period like sudden and large-infectious diseases such as new coronavirus, hospitals need to detect a large number of samples every day, the detection amount of medical staff is increased, and therefore an in-vitro diagnosis device is required to have high working efficiency.

Patent application CN201811115598.3 discloses a multiplex immunoassay analyzer, which is widely used in hospitals and can complete the detection of samples, but the volume of the cuvette supplementing device (such as an automatic conveying device disclosed in patent application CN 201811116731.7) of the multiple immunoassay analyzer is large, so that the overall volume of the in vitro diagnostic apparatus is increased, more medical space is occupied, and the cuvettes (such as the cuvettes disclosed in patent application CN 201821567797.3) need to be conveyed in place in a correct state during conveying. The reaction cups conveyed by the common reaction cup replenishing device can be in place in a wrong state, the conveying speed of the reaction cups is low, and the replenishing efficiency of the reaction cups is low, so that the sample detection is wrong, the cost is high, and the detection efficiency is low.

In the in vitro diagnostic apparatus, a reaction cup supplementing device is provided, and the reaction cup supplementing device needs to convey the reaction cup to the position in a correct manner, however, the reaction cup conveyed by the reaction cup supplementing device in the prior art has the problem of being in a wrong position, so that the sample detection is wrong, and therefore, the apparatus capable of conveying the reaction cup to the position in a correct state needs to be provided.

Disclosure of Invention

The present invention is directed to a reaction vessel screening apparatus and a reaction vessel replenishing apparatus using the same, which can solve the above-mentioned problems to some extent.

The invention is realized by the following steps:

a reaction vessel screening apparatus, comprising: a holder having an accommodating space for holding a reaction vessel; the reaction vessel screening device also comprises a pushing piece and a driver, wherein the pushing piece is connected with the fixed frame in a sliding way and comprises a first pushing piece for pushing the reaction vessel in the wrong state out of the accommodating space along a first direction and a second pushing piece for pushing the reaction vessel in the correct state out of the accommodating space along a second direction different from the first direction; the driver is fixedly connected with the fixed frame so as to drive the first pushing piece and the second pushing piece to reciprocate in the accommodating space. The reaction container in the correct state and the reaction container in the wrong state in the accommodating space are different, and the reaction container in the correct state and the reaction container in the wrong state are respectively pushed to different directions through the first pushing piece and the second pushing piece, so that the screening of the reaction containers in different states is realized, and the error rate of sample detection is reduced.

In one possible embodiment, the first direction is opposite to the second direction. So set up for correct state reaction vessel and wrong state reaction vessel are pushed to different directions respectively, push out reaction vessel sieving mechanism from the equidirectional not, can avoid wrong state reaction vessel and correct state reaction vessel to be mixed together. Meanwhile, the first direction is opposite to the second direction, so that the moving track of the first pushing piece is parallel to the moving track of the second pushing piece, and the first pushing piece and the second pushing piece are convenient to arrange.

In a possible embodiment, the fixing frame includes a guide plate and a first fixing plate disposed opposite to the guide plate, at least one of the guide plate and the first fixing plate is provided with a partition portion, the accommodating space includes an expansion portion and a contraction portion located on a lower side of the expansion portion, the expansion portion and the contraction portion are partitioned by a connecting line of the guide plate, the first fixing plate, or another partition portion facing the partition portion, and a minimum width of a projection of the expansion portion in a plane perpendicular to the second direction is larger than a maximum width of a projection of the contraction portion in a plane perpendicular to the second direction. The arrangement makes the heights of the reaction containers in the correct state and the wrong state in the accommodating space different, so that whether the directions of the reaction containers are correct or not can be distinguished through the heights of the reaction containers in the accommodating space, and the separation of the first pushing piece and the second pushing piece is facilitated. When all being equipped with the partition portion on deflector and the fixed plate, two partition portions are located the relative both sides of reaction vessel respectively to help making reaction vessel keep steadily in accommodation space, avoid appearing the sideslip.

In a possible embodiment, the first pushing member includes a first pushing end extending into the accommodating space and a first driving end connected to the driver, the first driving end causes the first pushing end to move back and forth in the expansion portion under the driving of the driver, and the second pushing member includes a second pushing end extending into the accommodating space and a second driving end connected to the driver, the second driving end causes the second pushing end to move back and forth in the contraction portion under the driving of the driver. Due to the limitation of the partition part, at least part of the structure of the correct state reaction vessel is positioned at the contraction part, the incorrect state reaction vessel is limited by the partition part and cannot extend into the contraction part, all the structures are positioned at the expansion part, and the second pushing part moves at the contraction part, so that the correct state reaction vessel can be pushed only by setting the height of the second pushing part. The first urging member moves in the expansion portion, and therefore the first urging member can only urge the reaction vessel in the error state by setting the height of the first urging member. The first pushing piece and the second pushing piece are used for separating the reaction container in the right state and the reaction container in the wrong state, so that the reaction containers in different states can be screened.

In a possible embodiment, the first drive end is a first rack and extends in the first direction, the second drive end is a second rack and extends in the second direction, the driver includes a motor and a gear on a rotation shaft of the motor, and the first rack and the second rack are respectively engaged with the gear and are arranged to be separated by the gear. The transmission structure of the gear and the rack is adopted, so that the power transmission is stable, and the accurate control is convenient. And through the transmission structure, the first pushing piece and the second pushing piece can be controlled to move towards two opposite directions by using one driver, so that the cost is saved.

In a possible embodiment, the fixing frame further includes a bottom plate and a second fixing plate, the bottom plate is located between the guide plate and the first fixing plate, the accommodating space is a groove surrounded by the first fixing plate, the guide plate and the bottom plate, and the top end of the guide plate is an arc-shaped plate bending away from the first fixing plate; the second fixing plate is opposite to the first fixing plate, a first through groove and a second through groove are formed in the second fixing plate, the first pushing end penetrates through the first through groove and is located in the groove, and the second pushing end penetrates through the second through groove and is located in the groove; the motor is arranged on the second fixing plate; the partition part is a step-shaped protrusion.

The first fixing plate and the second fixing plate are arranged to provide larger installation space for the driver, the first pushing piece and the second pushing piece, and the guide plate plays a role in guiding the reaction container so that the reaction container can smoothly enter the groove.

In a possible embodiment, the reaction vessel screening apparatus further includes a first detecting member for detecting whether the reaction vessel is accommodated in the accommodating space.

Optionally, the first detection piece includes a first photoelectric sensor, the first photoelectric sensor has a transmitting end and a receiving end, the transmitting end is connected to the fixing frame, the receiving end is disposed in the accommodating space, the transmitting end is opposite to the receiving end, and the transmitting end is located above the accommodating space.

The second fixing plate is provided with a first sliding rail and a second sliding rail, the first sliding rail is parallel to the second sliding rail, the first rack is assembled on the first sliding rail in a sliding mode, and the second rack is assembled on the second sliding rail in a sliding mode. The first sliding rail provides guiding and limiting effects for the first rack, and the second sliding rail provides guiding and limiting effects for the second rack.

In a possible embodiment, the guide plate is further provided with a protrusion facing the first fixing plate. The protrusion is used for preventing the reaction container from turning over when being pushed out in a correct state.

The present application also provides another reaction vessel screening apparatus, which includes: a holder having an accommodating space for holding a reaction vessel; a reaction vessel delivery passage for delivering a reaction vessel into the accommodation space; the reaction vessel screening apparatus further comprises: the pushing piece is connected with the fixed frame in a sliding way and comprises a first pushing piece which pushes the error state reaction container out of the accommodating space along a first direction and a second pushing piece which pushes the correct state reaction container out of the accommodating space along a second direction different from the first direction; the driver is fixedly connected with the fixed frame so as to drive the first pushing piece and the second pushing piece to reciprocate in the accommodating space; wherein a projection of the reaction vessel transport channel in at least one plane parallel to the second direction overlaps with and only partially overlaps with a projection of the second pusher in the at least one plane.

In the reaction vessel screening device, the reaction vessel is conveyed to the accommodating space through the reaction vessel conveying channel, and due to the relative position relationship between the conveying channel and the accommodating space and the structural arrangement of the reaction vessel, after the reaction vessel falls into the accommodating space, the reaction vessel is positioned in the pushing direction of the second pushing piece in a correct state, and a structure pressing above the second pushing piece does not exist, and part of the structure of the reaction vessel in an incorrect state is pressed above the second pushing piece.

The application also provides a reaction vessel supplementing device which comprises the reaction vessel screening device provided by any technical scheme. Because the reaction vessel screening device comprises the reaction vessel screening device, the advantages of the reaction vessel screening device relative to the prior art are the same, and the detailed description is omitted.

In one possible embodiment, the reaction vessel replenishing apparatus further comprises: the reaction vessel screening device is used for outputting the reaction vessels in the correct states to the reaction vessel receiving device, outputting the reaction vessels in the wrong states to the reaction vessel feedback device, and screening the reaction vessels in different states.

In summary, the reaction vessel screening device provided by the application can separate the reaction vessel in the correct state from the reaction vessel in the wrong state and respectively transmit the reaction vessel in the wrong state and the reaction vessel in the wrong state to different directions so as to screen the reaction vessels in different states, so that the reaction vessels in the correct state can be output to a target, the probability of the reaction vessels in the wrong state during replenishing the reaction vessels is reduced, and the error rate of sample detection is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a first schematic structural diagram of a first reaction vessel screening apparatus according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a first cross-sectional view of a reaction vessel screening apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating a position where a reaction cup in an error state falls in the reaction vessel screening apparatus according to the embodiment of the present invention;

FIG. 5 is a schematic view of the structure of a reaction vessel in a correct state;

FIG. 6 is a schematic diagram of a reaction vessel in an error state;

FIG. 7 is a front view of the reaction vessel in a correct state;

FIG. 8 is a second cross-sectional view of a reaction vessel screening apparatus according to an embodiment of the present invention;

FIG. 9 is a schematic diagram illustrating a position where a reaction cup in a correct state is dropped in the reaction vessel screening apparatus according to the embodiment of the present invention;

FIG. 10 is a second schematic structural view of a first reaction vessel screening apparatus according to an embodiment of the present invention;

FIG. 11 is a first schematic view illustrating the assembly of a first pushing member, a second pushing member and a driving assembly in a first reaction vessel screening apparatus according to an embodiment of the present invention;

FIG. 12 is a second schematic view of the assembly of the first pushing member, the second pushing member and the driving assembly in the first reaction vessel screening apparatus according to the embodiment of the present invention;

FIG. 13 is a first schematic structural view of a second reaction vessel screening apparatus according to an embodiment of the present invention;

FIG. 14 is a second schematic structural view of a second reaction vessel screening apparatus according to an embodiment of the present invention;

FIG. 15 is a schematic diagram showing the relative position of the projection of the second pusher member and the reaction vessel conveying path in at least one plane parallel to the second direction in the second reaction vessel screening apparatus according to the embodiment of the present invention;

FIG. 16 is a first schematic structural diagram of a reaction vessel replenishment apparatus according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of a reaction vessel replenishment device according to an embodiment of the present invention.

In the figure:

10-a fixing frame; 11-an accommodation space; 111-an expansion section; 112-a constriction; 12-a guide plate; 121-projection; 122-a partition; 1221-a first partition; 1222-a second partition; 13-a first fixing plate; 131-a guide block; 132-a first through slot; 133-a second through slot; 14-the bottom surface of the accommodation space; 15-a second fixing plate; 151-a first slide rail; 152-a second slide rail; 20-a pusher; 21-a first pusher; 211-a first pushing end; 212-a first drive end; 22-a second pusher; 221-a second pushing end; 222-a second drive end; 223 — projection of the second pusher; 30-a driver; 31-a motor; 311-rotation axis; 32-gear; 40-a first detection member; 41-a first receiving end; 42-a first transmitting end; 50-a second detection member; 51-a second photosensor; 52-a baffle plate; 60-a reaction vessel transport channel; 61-a first guide; 62-a second guide; 63-a third guide; 64-projection of the reaction vessel transport path; 70-a reaction vessel receiving means; 80-reaction vessel feedback device; 90-a reaction vessel; 91-upper surface of reaction vessel; 92-bottom of the reaction vessel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the equipment or elements that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

First embodiment

Referring to fig. 1 to 12, the present embodiment provides a reaction vessel screening apparatus, which includes: the device comprises a fixed frame 10, a driver 30 and a pushing member 20, wherein the pushing member 20 is connected with the fixed frame 10 in a sliding mode, the pushing member 20 comprises a first pushing member 21 and a second pushing member 22, and the fixed frame 10 is provided with a containing space 11 for holding a reaction container 90. The receiving space 11 refers to any structure capable of holding the reaction vessel 90, including but not limited to a groove, a through hole, a funnel, and the like, and in this embodiment, the receiving space 11 is a groove structure. The reaction vessel includes, but is not limited to, a reaction cup, a reaction tube, a reaction tank, a reaction rack, a reaction vessel, etc., and in this embodiment, the reaction vessel is a reaction vessel 90 as shown in fig. 5. The driver 30 is fixedly connected with the fixed frame 10, and the driver 30 is used for driving the first pushing member 21 and the second pushing member 22 to reciprocate in the accommodating space 11. Since the pushing member 20 is slidably connected to the holder 10, the pushing member 20 can slide relative to the holder 10, thereby performing an operation of pushing the reaction vessel 90. Specifically, the first pushing member 21 and the second pushing member 22 are respectively assembled to the fixed frame 10 in a sliding manner. And the driver 30 can drive the first pushing member 21 to reciprocate, and the driver 30 can drive the second pushing member 22 to reciprocate.

In the using process, the reaction container 90 enters the accommodating space 11 from the upper opening of the accommodating space 11 of the fixing frame 10, and if the reaction container 90 is in the error state, the reaction container 90 is pushed out in the first direction by the first pushing member 21 to push other devices (for example, the reaction container 90 in the error state is pushed out to the reaction container returning device 80, so that the reaction container 90 in the error state is returned by the reaction container returning device 80 and the reaction container 90 enters the reaction cup conveying device again for conveying again). If the reaction container 90 is in the correct state, the second pushing member 22 pushes the reaction container 90 in the second direction to push the next process equipment, so that the reaction container 90 in the correct state continues to be operated in the reaction container replenishing equipment. The reaction vessel screening device is used for screening reaction vessels in different states, and the correct state and the incorrect state are relative concepts and only represent different states in which the reaction vessels are kept in the accommodating space. As shown in fig. 5 to 7, the reaction vessel 90 has a reaction vessel upper surface 91 and a reaction vessel bottom surface 92.

The reaction container 90 is in the correct state in the accommodating space 11 differently from the reaction container 90 being in the wrong state. Specifically, as shown in fig. 9 and 13, when the reaction container 90 is in the accommodating space 11 with the upper surface 91 of the reaction container facing upward, the state of the reaction container 90 in the accommodating space 11 is the correct state. As shown in fig. 4 and 14, when the reaction vessel 90 is in the accommodating space 11 with the reaction vessel upper surface 91 facing downward, the state of the reaction vessel 90 in the accommodating space 11 is an error state.

The first direction and the second direction are different directions. With such arrangement, the reaction vessel screening apparatus provided by the embodiment pushes the reaction vessel 90 in the correct state and the reaction vessel 90 in the incorrect state to different directions, so as to prevent the reaction vessel 90 in the incorrect state and the reaction vessel 90 in the correct state from mixing together and flowing into the next process equipment, thereby increasing the error rate in the subsequent detection process.

The first pusher 21 is capable of reciprocating between a first direction and a reverse direction thereof, when the first pusher 21 moves in the first direction, the first pusher 21 is capable of pushing the reaction vessel 90 in the error state out of the accommodating space 11 in the first direction, and when the first pusher 21 moves in the reverse direction of the first direction, the first pusher 21 moves to its initial position to perform a reset operation to wait for the next reaction vessel 90 entering the accommodating space 11 in the initial position.

The second pushing member 22 can reciprocate between the second direction and the opposite direction, when the second pushing member 22 moves towards the second direction, the second pushing member 22 can push the reaction container 90 in the correct state out of the accommodating space 11 along the second direction, the first direction and the second direction are different directions, so that the discharging directions and the discharging positions of the reaction container 90 in the correct state and the reaction container 90 in the wrong state are different, and the reaction container 90 in the correct state and the reaction container 90 in the wrong state can be distinguished conveniently. When the second pusher 22 moves in the second direction, the second pusher 22 moves to its initial position to perform a reset operation to wait for the next reaction vessel 90 entering the accommodating space 11 at the initial position.

The first direction and the second direction are different directions, and are arranged such that the correct condition reaction vessel 90 and the incorrect condition reaction vessel 90 can be pushed out of the accommodating space 11 from different directions, respectively. For example, the first direction may be disposed at an angle with respect to the second direction, for example, if the first direction and the second direction are inclined with respect to each other and the angle therebetween is α, α may be an angle of 30 °, 90 °, 120 °, 180 °, or 270 °. Correspondingly, the moving tracks of the first pusher 21 and the second pusher 22 are also arranged at a certain angle, and the included angle between the moving tracks is β, which is equal to α.

In a preferred embodiment, the first direction is opposite to the second direction, or the angle α between the first direction and the second direction is 180 °. Correspondingly, the included angle β between the moving tracks of the first pushing member 21 and the second pushing member 22 is also 180 °, or the moving tracks of the first pushing member 21 and the second pushing member 22 are parallel. So arranged, it is convenient to arrange the first pusher 21 and the second pusher 22.

In one possible embodiment, the reaction vessel 90 may be a reaction tube provided in patent application No. 201821567797.3, which includes a support, a reaction tank disposed on the support, and dilution tanks disposed on the left and right sides of the reaction tank. The number of the reaction tanks is multiple, and the reaction tanks are distributed at intervals along the length direction of the bracket. The support is located near the bottom of the reaction tank such that the width at the top surface of the reaction tube is smaller than the width of the middle region of the reaction tube (i.e., the portion where the support is provided). When the opening of the reaction tank is upward, the reaction tube is in a correct state.

Further, when the reaction vessel screening apparatus is used to screen the reaction vessel 90, the width of the opening of the accommodating space 11 is greater than the maximum width of the reaction vessel 90, the width of the accommodating space 11 gradually decreases from the opening to the bottom, and the width of the bottom of the accommodating space 11 is smaller than the width of the first side surface of the reaction vessel 90 and is greater than or equal to the width of the second side surface of the reaction vessel 90. It is so arranged that the reaction vessel 90 entering the accommodating space 11 has two states, one of which is that the upper surface 91 of the reaction vessel is directed upward, which is a correct state, and the other of which is that the upper surface 91 of the reaction vessel is directed downward, which is an incorrect state.

In a possible embodiment, the fixing frame 10 includes a guide plate 12 and a first fixing plate 13 disposed opposite to the guide plate 12, at least one of the guide plate 12 and the first fixing plate 13 is provided with at least one partition 122, and the number of the partitions 122 is at least one, that is, at least one partition 122 may be provided only on the guide plate 12, at least one partition 122 may be provided only on the first fixing plate 13, or the guide plate 12 and the first fixing plate 13 may be provided with the partitions 122, at least one partition 122 is provided on the guide plate 12, and at least one partition 122 is provided on the first fixing plate 13.

The accommodation space 11 includes an expansion portion 111 partitioned by a connecting line connecting the partition portion 122 and the guide plate 12 in parallel to the second direction and a contraction portion 112 located on a lower side of the expansion portion 111; alternatively, the accommodating space 11 includes an expansion portion 111 formed by dividing the dividing portion 122 and the first fixing plate 13 in parallel to the connecting line connecting in the second direction, and a contraction portion 112 located on the lower side of the expansion portion 111; alternatively, the accommodation space 11 includes an expansion portion 111 formed by dividing the partition portion 122 from another partition portion 122 in parallel with a connecting line connecting the second direction, and a contraction portion 112 located on the lower side of the expansion portion 111. The constricted portion 112 refers to the region below the lower surface of the partition portion 122 in the accommodating space 11, and the expanded portion 111 refers to the region excluding the constricted portion 112 in the accommodating space 11. When the reaction vessel 90 is held in the accommodating space 11 in an erroneous state, the reaction vessel 90 is in the expansion portion 111. When the reaction vessel 90 is held in the correct state in the accommodation space 11, the reaction vessel 90 may be partly in the expansion portion 111 and partly in the constriction portion 112, and the reaction vessel 90 may also be held in the constriction portion 112. In the present embodiment, when the reaction vessel 90 is held in the accommodating space 11 in the correct state, the reaction vessel 90 may be partly in the expansion portion 111 and partly in the contraction portion 112.

Specifically, the minimum width of the projection of the expansion portion 111 in the plane perpendicular to the second direction is larger than the maximum width of the projection of the contraction portion 112 in the plane perpendicular to the second direction. The arrangement is such that the bottom surface 92 of the reaction vessel 90 in the correct state can penetrate through the expansion part 111 and then extend into the contraction part 112, while the reaction vessel 90 in the wrong state is blocked by the partition part 122, and the arrangement of the partition part 122 makes the position of the reaction vessel 90 in the accommodating space 11 in the correct state different from the position of the reaction vessel 90 in the accommodating space 11 in the wrong state, so as to distinguish whether the state of the reaction vessel 90 in the accommodating space 11 is correct, which is beneficial for screening the reaction vessels 90 in the correct state and the reaction vessels 90 in the wrong state, i.e. screening the reaction vessels in different states.

In a specific embodiment provided by the present embodiment, the partition 122 is disposed on both the guide plate 12 and the first fixing plate 13, the partition 122 specifically includes a first partition 1221 and a second partition 1222, the first partition 1221 is disposed on the guide plate 12, and the second partition 1222 is disposed on the first fixing plate 13. The accommodation space 11 includes an expansion portion 111 partitioned by a connection line connecting the first partition 1221 and the second partition 1222 and a contraction portion 112 located below the expansion portion 111.

With this arrangement, after the reaction vessel 90 enters the accommodating space 11 in the correct state, the second side surface of the reaction vessel passes through the gap between the first partition 1221 and the second partition 1222 and enters the lower contraction portion 112, the first side surface of the reaction vessel is located at the expansion portion 111, the first partition 1221 and the second partition 1222 are respectively located at two opposite sides of the reaction vessel 90, and the first partition 1221 and the second partition 1222 can play a certain role in limiting the reaction vessel 90. As shown in fig. 4, when the reaction vessel 90 in the error state is held in the housing space 11, both side edges of the upper surface 91 of the reaction vessel abut against the first and second partitions 1221 and 1222, respectively, and the first and second partitions 1221 and 1222 prevent the first side surface of the reaction vessel 90 from entering the constricted portion 112, so that the entire reaction vessel 90 is located in the expanded portion 111. Because the two opposite sides of the upper surface 91 of the reaction vessel 90 are supported, the reaction vessel 90 in the error state has stronger stability in the moving process, and the side turning is avoided. In this embodiment, as shown in fig. 8 and 9, when the reaction vessel 90 in the correct state is held in the accommodating space 11, the bottom surface 92 of the reaction vessel contacts with the bottom surface 14 of the accommodating space, so that the reaction vessel 90 in the correct state has stronger stability during movement and can be prevented from side turning.

The partition portion 122 is provided such that the width of the expansion portion 111 is equal to or greater than the width of the reaction vessel bottom surface 92 of the reaction vessel 90, and the width of the constricted portion 112 is smaller than the width of the reaction vessel upper surface 91 of the reaction vessel 90. The motion track of the second pushing member 22 in the accommodating space 11 is located in the tightening part 112, and the motion track of the first pushing member 21 is partially located in the expansion part 111. If the direction perpendicular to the second direction is the third direction, the length of the structure in which the reaction vessel 90 in the correct state is located in the expansion section 111 in the third direction is L1, the length of the structure in which the reaction vessel 90 in the incorrect state is located in the expansion section 111 is L2, and the distance between the first pusher 21 and the partition section 122 is L3, then L1 < L3 < L2. The arrangement is such that the first pusher 21 can only push the reaction vessel 90 in the wrong state without contacting the reaction vessel 90 in the correct state, and the second pusher 22 can only push the reaction vessel 90 in the correct state without contacting the reaction vessel 90 in the wrong state.

That is, the present embodiment can allow the reaction container 90 dropped into the accommodating space 11 to be in contact with only one of the first urging member 21 and the second urging member 22, thereby avoiding malfunction caused by the first urging member 21 and the second urging member 22 simultaneously urging the same reaction container 90 in opposite directions.

Specifically, the partition 122 may be a plurality of block-shaped protrusions, or may be a bar-shaped structure. The partition 122 may have a solid structure or a hollow structure. The top surface of the partition 122 may be a flat surface or an inclined surface. The partition 122 may be a structure separate from the guide plate 12 and the first fixing plate 13 and connected to the corresponding guide plate 12 or the first fixing plate 13 during the assembly process, or the first partition 1221 on the guide plate 12 is formed to protrude outward from the side wall of the guide plate 12 and the second partition 1222 on the first fixing plate 13 is formed to protrude outward from the side wall of the first fixing plate 13.

In a preferred embodiment, the first and second partitions 1221 and 1222 are each formed as a stepped protrusion to facilitate supporting and restraining the reaction vessel 90.

In an alternative embodiment, the number of actuators 30 may be two, the first pusher 21 being driven by one of the actuators 30 and the second pusher 22 being driven by the other actuator 30.

Alternatively, in a preferred embodiment, the first pushing member 21 and the second pushing member 22 are in transmission connection with the same driver 30, and the driver 30 causes the first pushing member 21 and the second pushing member 22 to synchronously move in opposite directions. That is to say, the same driver 30 is adopted to drive the first pushing member 21 and the second pushing member 22 to synchronously move in the opposite direction, so that the cost can be saved, the space required for installing the driver 30 can be saved, the structure is more compact, and the same driver 30 is used to drive the first pushing member 21 and the second pushing member 22 to synchronously move in the opposite direction. The driver 30 at least comprises a device capable of providing power, such as an electric motor, a power generation element, etc., and in this embodiment, the driver 30 comprises a motor 31.

The first pushing member 21 and the second pushing member 22 can be respectively connected with the driver 30 through a transmission assembly, so that the same driver 30 is used for driving the first pushing member 21 and the second pushing member 22 to synchronously move in opposite directions.

The transmission assembly may include, but is not limited to, any one or combination of a plurality of transmission structures such as a gear 32, a rack, a transmission belt, a transmission shaft, a transmission rod, a screw member, and the like.

Alternatively, the synchronous reverse motion of the first pushing member 21 and the second pushing member 22 by using the same driver 30 can be realized by the structural cooperation of the first pushing member 21 and the driver 30 and the structural cooperation of the second pushing member 22 and the driver 30.

In one embodiment, the first pushing member 21 includes a first pushing end 211 extending into the accommodating space 11 and a first driving end 212 connected to the driver 30, and the first driving end 212 causes the first pushing end 211 to reciprocate in the expansion portion 111 under the driving of the driver 30. The first driving end 212 is connected to the first pushing end 211, and specifically, the first driving end 212 and the first pushing end 211 may be integrally formed or connected to each other by bonding, welding, or bolts. Alternatively, the first driving end 212 and the first pushing end 211 may be connected through an elastic buffer structure, for example, the first pushing end 211 is slidably mounted on the first driving end 212, the first pushing end 211 may move along a first direction within a set distance relative to the first driving end 212, and the elastic buffer structure is connected between the first pushing end 211 and the first driving end 212. With this arrangement, the impact force generated when the first pushing end 211 contacts the reaction vessel 90 can be reduced by the elastic buffer structure. The elastic buffer structure can be a spring, a spring sheet, a rubber block and other structures with elasticity.

The second pushing member 22 includes a second pushing end 221 extending into the accommodating space 11 and a second driving end 222 connected to the driver 30, and the second driving end 222 causes the second pushing end 221 to reciprocate in the tightening portion 112 under the driving of the driver 30. The second driving end 222 is connected to the second pushing end 221, and the connection between the first driving end 212 and the first pushing end 211 can be referred to as above, and will not be described herein again.

In one possible embodiment, the first driving end 212 is a first rack and extends in a first direction, the second driving end 222 is a second rack and extends in a second direction, the driver 30 includes a motor 31 and a gear 32 on a rotating shaft 311 of the motor 31, and the first rack and the second rack are respectively engaged with the gear 32 and are arranged to be separated from each other by the gear 32.

The first rack extends in a first direction and the second rack extends in a second direction. After the motor 31 is turned on, the rotating shaft 311 of the motor 31 drives the gear 32 to rotate, and during the rotation of the gear 32, since the first rack is meshed with the gear 32, the first rack moves in the first direction under the driving of the gear 32, and since the second rack is meshed with the gear 32, the second rack moves in the second direction under the driving of the gear 32.

When the first direction is opposite to the second direction, the first rack and the second rack are respectively arranged on two opposite sides of the gear 32, the first rack is connected with the first pushing piece 21, the second rack is connected with the second pushing piece 22, the gear 32 is connected with the driver 30, and the driver 30 is used for driving the gear 32 to rotate.

Since the first rack and the second rack are located on opposite sides of the gear 32, the first rack moves in a direction opposite to that of the second rack during rotation of the gear 32.

For example, as shown in fig. 10, the first rack extends in the horizontal direction and is located above the gear 32, and the second rack extends in the horizontal direction and is located below the gear 32, so that when the gear 32 rotates clockwise, the first rack moves to the right, and the second rack moves to the left.

In fig. 10, the direction indicated by the arrow C is the first direction, and the direction indicated by the arrow B is the second direction.

In a possible embodiment, the reaction vessel 90 screening apparatus further comprises a second detecting member 50, the second detecting member 50 being adapted to detect the position of the first pushing member 21 and/or the second pushing member 22. Specifically, the second detection member 50 may include a contact sensor or a photosensor.

Preferably, the second sensing member 50 includes a photosensor. Specifically, the second detecting member 50 includes a second photoelectric sensor 51 and a blocking piece 52, the second photoelectric sensor 51 is connected with the fixing frame 10, the blocking piece 52 can be connected to the first pushing member 21 and/or the second pushing member 22, and the blocking piece 52 can extend between the receiving end and the emitting end of the second photoelectric sensor 51 along with the movement of the first pushing member 21 and/or the second pushing member 22. When the shutter 52 extends between the receiving end and the emitting end of the second photosensor 51, the second photosensor 51 is activated.

The catch 52 may be connected to the first pusher member 21 to detect the moving position of the first pusher member 21, or the catch 52 may be connected to the second pusher member 22 to detect the moving position of the second pusher member 22, or the catch 52 may be mounted on both the first pusher member 21 and the second pusher member 22 to detect the moving positions of the first pusher member 21 and the second pusher member 22, respectively. Since the mounting manner and the operation principle of the shutter 52 mounted on the first pushing member 21 and the second pushing member 22 are the same, the following description will be given by taking the example in which the shutter 52 is mounted on the first pushing member 21.

For example, the blocking piece 52 is mounted on the first pushing member 21, and when the first pushing member 21 is at the starting point (i.e. the standby position when waiting for the reaction vessel 90 to fall into the accommodating space 11), the blocking piece 52 is located between the receiving end and the emitting end of the second photoelectric sensor 51, so that whether the first pushing member 21 is at the starting point can be detected by the contact sensor, so as to facilitate the resetting operation of the reaction vessel 90 screening apparatus. Alternatively, the mounting position of the blocking sheet 52 on the first pushing member 21 may be changed, or the mounting position of the second photoelectric sensor 51 on the fixing frame 10 may be changed, so that when the first pushing member 21 is at the end point (i.e. the position of completely pushing the reaction vessel 90 out), the blocking sheet 52 is located between the receiving end and the emitting end of the second photoelectric sensor 51, and thus, whether the pushing operation of the reaction vessel 90 is completed by the first pushing member 21 may be detected by the second photoelectric sensor 51. Alternatively, two second photosensors 51 may be disposed on the fixing frame 10, when the first pushing member 21 is at the starting point, the blocking piece 52 is located between the receiving end and the emitting end of one of the second photosensors 51, and when the first pushing member 21 is at the ending point, the blocking piece 52 is located between the receiving end and the emitting end of the other second photosensor 51.

When the blocking piece 52 is mounted on the first pushing member 21, the blocking piece 52 can be directly connected with the first pushing end 211 or can be connected with the first driving end 212; when the flap 52 is mounted to the second pusher member 22, the flap 52 can be directly connected to the second pushing end 221 or can be connected to the second driving end 222. So set up, provide more optional scope for the mounted position of separation blade 52, can select according to actual need specifically.

Since the first pushing member 21 and the second pushing member 22 are driven by the same driver 30, when the first pushing member 21 is located at the starting point, the second pushing member 22 is also located at the starting point; when the first pusher 21 is at the end, the second pusher 22 is also at the end. Thus, the blade 52 can be mounted on only one of the first pusher member 21 and the second pusher member 22 to detect whether the two members are located at the initial point and/or the final point.

In summary, in a preferred embodiment, when the first pushing member 21 is located above the second pushing member 22, the stop piece 52 is only mounted on the first pushing member 21, and the stop piece 52 is connected to the first driving end 212. The blocking piece 52 can be an L-shaped structure and comprises a longitudinal plate and a transverse plate, the bottom end of the longitudinal plate is connected with the first pushing piece 21 or the first driving end 212, the top end of the longitudinal plate is connected with the transverse plate, the second photoelectric sensor 51 is installed in the upper area of the fixed frame 10, and the transverse plate can move between the receiving end and the transmitting end of the second photoelectric sensor 51. This arrangement allows the second photosensor 51 to be mounted in an upper region of the holder 10 where space is relatively large, installation is easy, and interference with other structures does not occur.

In another alternative embodiment, the second sensing member 50 comprises a contact sensor comprising at least one first contact and at least one second contact, the contact sensor being activated upon contact of the first contact with the second contact. For example, a first contact point is provided on the first pusher 21 and a second contact point is provided on the holder 10, and the first pusher 21 is at the starting point when the first contact point contacts the second contact point. Of course, it is also possible to arrange the positions of the first contact and the second contact such that the first contact and the second contact come into contact when the first pusher 21 moves to the end point. Alternatively, two first contacts may be provided on the first pusher 21, two second contacts may be provided on the holder 10, one of the first contacts being in contact with one of the second contacts when the first pusher 21 is at the starting point, and the other first contact being in contact with the other second contact when the first pusher 21 is moved to the end point. Of course, the first contact point described above can also be provided on the second pusher 22 to detect whether the second pusher 22 has reached the starting or end point, in the same way as on the first pusher 21. Alternatively, the first pushing member 21 and the second pushing member 22 may be respectively provided with a first contact, and the fixed frame 10 may be respectively provided with a second contact corresponding to the first contact of the first pushing member 21 and the first contact of the second pushing member 22.

In a possible embodiment, the reaction vessel 90 screening apparatus further includes a first detecting member 40, and the first detecting member 40 is used for detecting whether the reaction vessel 90 is accommodated in the accommodating space 11. The first detecting member 40 can cooperate with the driver 30, that is, after the first detecting member 40 detects that the reaction container 90 is accommodated in the accommodating space 11, a time is set to wait for the reaction container 90 to fall stably, and then the driver 30 is started to drive the first pushing member 21 and the second pushing member 22 to move. When the reaction vessel 90 is not accommodated in the accommodating space 11, the driver 30 is in a standby state to reduce power consumption.

Optionally, the first detecting element 40 includes a first photoelectric sensor, the first photoelectric sensor has a first emitting end 42 and a first receiving end 41, the first emitting end 42 is connected to the fixing frame 10, the first receiving end 41 is disposed in the bottom surface 14 of the accommodating space, the first emitting end 42 is opposite to the first receiving end 41, and the first emitting end 42 is located above the accommodating space 11. So configured, when the reaction container 90 falls into the accommodating space 11, the reaction container 90 is shielded between the first emitting end 42 and the first receiving end 41, so as to shield the light emitted from the first emitting end 42, and the first photoelectric sensor is triggered. The first photoelectric sensor can detect whether the reaction container 90 is accommodated in the accommodating space 11, and when the first photoelectric sensor detects that the reaction container 90 is accommodated in the accommodating space 11, the driver 30 can be activated to drive the first pushing member 21 and the second pushing member 22 to move.

In a possible embodiment, the receiving space 11 is formed by a gap between the first fixing plate 13 and the guide plate 12. When the reaction vessel 90 in the correct state is dropped into the accommodating space 11, a partial region of the reaction vessel 90 is extended into the constricted portion 112 due to the position limitation of the partition portion 122, and the partial region is located in the expanded portion 111, that is, a partial region of the side of the reaction vessel 90 abuts against the partition portion 122. The partition 122 serves as a position-limiting and supporting function for the reaction vessel 90. When the reaction container 90 in the error state falls into the accommodating space 11, the second side surface of the reaction container 90 abuts against the partition portion 122, and the partition portion 122 plays a role in limiting and supporting the reaction container 90.

Further, a first support structure is provided at a side of the first fixing plate 13 facing the guide plate 12, and a second support structure is provided at a side of the guide plate 12 facing the first fixing plate 13. The first supporting structure and the second supporting structure are oppositely arranged, and a certain gap is formed between the first supporting structure and the second supporting structure. When the reaction vessel 90 in the correct state enters the accommodating space 11, the second sides of the reaction vessel 90 are supported by the first support structure and the second support structure, respectively. When the reaction container 90 in the error state enters the accommodating space 11, the reaction container 90 is still supported by the partition 122.

Alternatively, in another possible embodiment, the fixing frame 10 further includes a bottom plate, the first fixing plate 13 and the guide plate 12 are respectively connected to two sides of the bottom plate, a groove is formed between the first fixing plate 13, the guide plate 12 and the bottom plate, and the accommodating space 11 is the groove. In this arrangement, when the reaction container 90 in the correct state enters the accommodating space 11, the second side surface of the reaction container 90 abuts against the bottom surface 14 of the accommodating space, and the reaction container 90 is supported by the bottom surface 14 of the accommodating space. When the reaction container 90 in the error state enters the accommodating space 11, the reaction container 90 is still supported by the partition 122.

Further, the second fixing plate 15 is disposed opposite to the first fixing plate 13, the second fixing plate 15 is provided with a first through groove 132 and a second through groove 133, the first pushing end 211 passes through the first through groove 132 and is located in the accommodating space 11, and the second pushing end 221 passes through the second through groove 133 and is located in the accommodating space 11. This facilitates the first pushing end 211 to move relative to the accommodating space 11 and the second pushing end 221 to move relative to the accommodating space 11.

When the first through groove 132 and the second through groove 133 are not provided, in an alternative embodiment, the first pushing end 211 may extend into the accommodating space 11 from the opening of the accommodating space 11 in the first direction, and the second pushing end 221 may extend into the groove from the opening of the accommodating space 11 in the second direction. Specifically, the first pushing end 211 includes a first connecting portion and a first pushing portion, and the second pushing end 221 includes a second connecting portion and a second pushing portion. One end of the first connecting portion is connected to the first driving end 212, and the other end of the first connecting portion extends into the accommodating space 11 from the first-direction opening of the accommodating space 11 and is connected to the first pushing portion, and the first connecting portion may be a plate-shaped structure and disposed close to the guide plate 12. Alternatively, the first connecting portion may be slidably assembled to the guide plate 12 to drive the first pushing portion to move along the first direction. One end of the second connecting portion is connected to the second driving end 222, the other end of the second connecting portion extends into the accommodating space 11 through the opening of the accommodating space 11 in the second direction, and is connected to the second pushing portion, and the second connecting portion may be a plate-shaped structure and disposed close to the first fixing plate 13. Alternatively, the second connecting portion can be slidably assembled to the first fixing plate 13 to drive the second pushing portion to move along the second direction. Of course, the first connecting portion may be slidably fitted to the first fixing plate 13, and the second connecting portion may be slidably fitted to the guide plate 12. Alternatively, the first connecting portion and the second connecting portion may be both slidably fitted to the first fixing plate 13. Alternatively, the first and second connecting portions may both be slidably fitted to the guide plate 12. Since the first and second pushing ends 211 and 221 are located at different heights in the accommodating space 11, their relative movements do not interfere.

Or, in another alternative embodiment, both the first pushing end 211 and the second pushing end 221 extend into the accommodating space 11 from the top opening of the accommodating space 11, the first pushing end 211 includes a first connecting portion and a first pushing portion, and the second pushing end 221 includes a second connecting portion and a second pushing portion. One end of the first connecting portion is connected to the first driving end 212, and the other end extends into the accommodating space 11 from the upper opening of the accommodating space 11 and is connected to the first pushing portion. One end of the second connecting portion is connected to the second driving end 222, and the other end extends into the accommodating space 11 from the upper opening of the accommodating space 11 and is connected to the second pushing portion. When the first connecting part is slidably assembled on the guide plate 12, the second connecting part is slidably assembled on the first fixing plate 13; alternatively, when the first connecting portion is slidably fitted to the first fixing plate 13, the second connecting portion is slidably fitted to the guide plate 12. Since the first connecting portion and the second connecting portion are located at opposite sides of the accommodating space 11, the first pushing end 211 and the second pushing end 221 do not interfere with each other during movement.

Preferably, the top end of the guide plate 12 is an arc-shaped plate bent away from the first fixing plate 13, and the arc-shaped plate is a plate-shaped structure with a bent surface. Since the top plate of the guide plate 12 is an arc-shaped plate bending away from the first fixing plate 13, the size of the opening of the accommodating space 11 is gradually reduced from outside to inside. Because the opening size of the accommodating space 11 is relatively larger due to the arrangement of the arc-shaped plates, the reaction container 90 is convenient to accept, and the reaction container 90 slides into the deeper position of the accommodating space 11 along the arc-shaped structure of the guide plate 12, so that the judgment of the correct state and the wrong state can be carried out.

In a possible embodiment, the fixing frame 10 further comprises a second fixing plate 15, the second fixing plate 15 is connected with the first fixing plate 13, the driver 30 is mounted on the second fixing plate 15, the first rack and the second rack are respectively slidably assembled on the second fixing plate 15, and the gear 32 is rotatably connected to the second fixing plate 15. Since the first and

second fixing plates

13 and 15 are provided, it is possible to provide a larger assembly installation space to facilitate installation of the structures (e.g., the driver 30, the first and second racks).

Further, a protrusion 121 is disposed on one side of the guide plate 12 facing the first fixing plate 13 along the length direction, the protrusion 121 is used for limiting the upward movement of the reaction vessel 90 located below the protrusion 121, the protrusion 121 may be any shape capable of limiting the upward movement of the reaction vessel 90 located below the protrusion 121, in this embodiment, the protrusion 121 is a strip-shaped structure, the distance between the protrusion 121 and the bottom plate is slightly greater than the height of the reaction vessel 90, when the reaction vessel 90 in the correct state is introduced into the accommodating space 11, the reaction vessel 90 is positioned below the projection 121, when the second pushing member 22 pushes the reaction vessel 90 in the correct state to move towards the first direction, the second side of the reaction vessel 90 contacts with the second side of the accommodating space 11, the first side of the reaction vessel 90 is located below the protrusion 121, and the protrusion 121 can prevent one end of the reaction vessel 90 from tilting, that is, the reaction vessel 90 from turning on one side.

In a possible embodiment, one end of the first fixing plate 13 is provided with a guide block 131. Specifically, one end of the first fixing plate 13 in the first direction is provided with a guide block 131. So that the reaction vessels 90 pushed out of the accommodating space 11 in the first direction are output by the reaction vessel screening apparatus under the guide of the guide block 131. In specific implementation, one side of the accommodating space 11 may be communicated with the reaction container returning device 80, and the reaction container 90 in the error state is conveyed to the reaction container returning device 80 by the guide block 131, so that the reaction container 90 in the error state is conveyed to the reaction container conveying channel 60 by the reaction container returning device 80 for further conveying.

Further, the guide block 131 has a slope. Specifically, the slope surface may be a plane surface or a curved surface. The slope-shaped guide block 131 can change the moving direction of the reaction vessel 90, and can smoothly turn the reaction vessel 90, so that the impact or friction between the reaction vessel 90 and the reaction vessel 90 is reduced, and the reaction vessel 90 can conveniently move to a subsequent structure.

The second fixing plate 15 is provided with a first slide rail 151 and a second slide rail 152, the first slide rail 151 is parallel to the second slide rail 152, the first rack is slidably mounted on the first slide rail 151, and the second rack is slidably mounted on the second slide rail. So set up, first slide rail 151 plays spacing guide effect to first rack, and second slide rail 152 plays the effect of spacing guide to the second rack. The stability of the first rack in the moving process can be improved by the arrangement of the first slide rail 151, and the stability of the second rack in the moving process can be improved by the arrangement of the second slide rail 152. And because the first sliding rail 151 and the second sliding rail 152 are both disposed on the second fixing plate 15, the first rack and the second rack can move at different heights on the same plane, and the space is saved.

Second embodiment

This embodiment provides a reaction vessel screening apparatus, which is a modified version of the first embodiment, and the disclosure in the first embodiment is not repeated herein.

The reaction vessel screening apparatus provided in this embodiment includes: a fixed mount 10, a reaction vessel conveying passage 60, a pusher 20, and a driver 30, wherein: the holder 10 is provided with an accommodation space 11 for holding the reaction vessel 90; the reaction vessel transfer passage 60 is used to transfer the reaction vessel 90 into the accommodating space 11; the pushing member 20 is slidably connected to the holder 10, and includes a first pushing member 21 that pushes the error-state reaction container 90 out of the accommodating space 11 in a first direction and a second pushing member 22 that pushes the correct-state reaction container 90 out of the accommodating space 11 in a second direction different from the first direction; the driver 30 is fixedly connected with the fixed frame 10 to drive the first pushing member 21 and the second pushing member 22 to reciprocate in the accommodating space 11.

As shown in fig. 15, the projection of the reaction vessel transport channel 60 in at least one plane parallel to the second direction overlaps with and only partially overlaps with the projection of the second pusher 22 in at least one plane. As shown in fig. 16 and 17, the reaction vessel 90 falls from the discharge end of the reaction vessel transfer passage into the accommodating space 11. The reaction container transport path 60 has a first guide portion 61, a second guide portion 62, and a third guide portion 63 for guiding the reaction container 90 into the accommodating space 11. The third guide portion 63 is a slope inclined toward the accommodating space 11. The first guide portion 61, the second guide portion 62 and the third guide portion 63 constitute the discharge end of the transport path of the reaction vessel. The edge of the second guide 62 is in the second direction of the edge of the first guide 61. As shown in fig. 15, the arrow indicates the second direction. The projection of the reaction vessel transport duct 60 in at least one plane parallel to the second direction is the projection plane of the outlet opening, which is formed by the edges of the first guide 61, the second guide 62 and the third guide 63, onto the receiving space floor 14. The projection of the edge of the first guide 61 is on the top surface of the second pusher member 22, and the projection of the edge of the second guide 62 is not on the top surface of the second pusher member 22, and the projection of the reaction vessel transfer channel 60 in at least one plane parallel to the second direction overlaps with and only partially overlaps with the projection of the second pusher member 22 in at least one plane. In fig. 15, the projection 64 of the reaction vessel transport path is the projection of the reaction vessel transport path 60 in at least one plane parallel to the second direction, and in the direction shown in fig. 15, the right-hand edge of the projection 64 of the reaction vessel transport path is the projection of the edge of the first guide 61, and the left-hand edge thereof is the projection of the edge of the second guide 62. The projection 223 of the second pusher is the projection of the second pusher 22 in at least one plane parallel to the second direction. In fig. 15, a reaction container 90 is also shown, and as can be seen from a projection 64 of the reaction container 90 and the reaction container conveying channel, the length of the discharge end of the reaction container conveying channel 60 is slightly greater than the length of the reaction container 90, so that the reaction container 90 can be smoothly conveyed out of the discharge end, and the reaction container 90 can also be limited to define the position of the drop point of the reaction container 90 in the accommodating space 11. The dashed line W in fig. 15 is a line perpendicular to the second direction, the projection 223 of the second pusher is located on the right side of the dashed line W, the bottom 92 of the reaction vessel is located on the left side of the dashed line W, and a part of the upper surface 91 of the reaction vessel is located on the left side of the dashed line W and the other part is located on the right side of the dashed line W. It can be seen that, when the reaction vessel 90 enters the accommodating space 11 through the reaction vessel conveying passage 60, the reaction vessel bottom surface 92 of the reaction vessel 90 in the correct state faces downward, and the reaction vessel bottom surface 92 is located completely to the left of the second pusher member 22, i.e., no part of the reaction vessel 90 is pressed against the second pusher member 22; the reaction vessel 90 in the error state has the upper reaction vessel surface 91 facing downward, the region of the upper reaction vessel surface 91 on the right side of the chain line W is pressed against the second pusher 22, and the region of the upper reaction vessel surface 91 on the right side of the chain line W is larger than zero.

The reaction vessel 90 is defined within a certain range at the drop point of the accommodating space 11 by the arrangement of the reaction vessel transfer passage 60. In particular, the projection of the reaction vessel conveying channel 60 in at least one plane parallel to the first direction overlaps with the projection of the second pusher 22 in at least one plane only partially. Thus, the projection of the reaction vessel 90 entering the receiving space 11 via the reaction vessel transfer channel 60 in at least one plane parallel to the first direction overlaps with and only partially overlaps with the projection of the second pusher 22 in at least one plane. Since the length of the reaction vessel upper surface 91 in the first direction is relatively greater, while the length of the reaction vessel bottom surface 92 in the first direction is relatively smaller, while the bottom surface 92 of the reaction vessel in the correct state faces downward, the upper surface 91 of the reaction vessel in the incorrect state faces downward, so that, when the reaction vessel 90 in the correct state is introduced into the accommodating space 11, the bottom surface 92 of the reaction vessel faces downward, because of the small length of the reaction vessel bottom surface 92, the reaction vessel 90, although its entire projection would coincide with the second pusher member 22, however, since the dimensions of the upper reaction vessel surface 91 are greater than the dimensions of the bottom reaction vessel surface 92, and thus the projection reaction is the upper reaction vessel surface 91, the bottom reaction vessel surface 92 does not directly contact the second pusher member 22, but rather lies in the second direction of the second pusher member 22, after the second pusher 22 moves, the reaction container 90 in the correct state is withdrawn from the accommodating space 11 in the second direction. Since the reaction vessel upper surface 91 of the reaction vessel 90 in the error state is directed downward and the length of the reaction vessel upper surface 91 is large, the reaction vessel upper surface 91 of the reaction vessel 90 partially presses against the second pushing member 22, and the second pushing member 22 raises one side of the reaction vessel 90 so that the first pushing member 21 can contact the reaction vessel 90 after moving, thereby pushing the reaction vessel 90 out of the accommodating space 11 in the first direction by the first pushing member 21.

As shown in fig. 13 and 14, in the embodiment provided in this example, when second pusher member 22 is in the initial position and reaction cuvette 90 enters accommodating space 11 from the correct state, reaction cuvette 90 is located on the side of the direction of movement in which second pusher member 22 pushes reaction cuvette 90 in the correct state out of accommodating space 11; when the reaction vessel 90 enters the accommodating space 11 from an error state, a partial region of the reaction vessel upper surface 91 of the reaction vessel 90 is pressed against the second pusher 22.

That is, the reaction vessel 90 in the correct state and the reaction vessel 90 in the wrong state have different positions of their falling points due to their own states in the accommodating space 11, so that the states of the reaction vessels 90 can be distinguished by their different falling points. Since the reaction container 90 in the correct state is located on the side of the direction of movement in which the second pusher 22 pushes the reaction container 90 in the correct state out of the accommodating space 11, the reaction container 90 is pushed to move after the second pusher 22 starts moving. Since a partial area of the reaction vessel upper surface 91 of the reaction vessel 90 in the error state is pressed against the second pusher 22, the reaction vessel 90 will pass under the reaction vessel 90 when the second pusher 22 moves, and the reaction vessel 90 will be pushed in the first direction by the first pusher 21.

In a preferred embodiment, the distance between the bottom surface of the first pusher member 21 and the bottom surface 14 of the accommodating space is slightly larger than the height of the reaction vessel 90 in the correct state, the distance between the bottom surface of the second pusher member 22 and the bottom surface 14 of the accommodating space is smaller than the height of the reaction vessel 90 in the correct state, and the distance between the bottom surface of the first pusher member 21 and the top surface of the second pusher member 22 is smaller than the height of the reaction vessel 90 in the correct state.

The distance between the bottom surface of the first pushing member 21 and the bottom surface 14 of the accommodating space is larger than the height of the reaction container 90 in the correct state, the plane of the upper surface 91 of the reaction container is positioned below the bottom surface of the first pushing member 21, and the reaction container 90 is positioned on the top surface of the second pushing member 22. When the reaction container 90 enters the accommodating space 11 from the right state, the bottom surface 92 of the reaction container contacts the bottom surface 14 of the accommodating space in the process of moving the first pushing member 21 and the second pushing member 22, the first pushing member 21 passes over the reaction container 90 without contacting the reaction container 90, and the second pushing member 22 pushes the reaction container 90 to move towards the second direction.

When the reaction container 90 enters the accommodating space 11 from a wrong state, a partial area of the upper surface 91 of the reaction container is pressed above the second pushing member 22, the second pushing member 22 lifts the partial structure of the reaction container 90, so that the distance between the partial structure and the bottom surface 14 of the accommodating space is increased, and as the distance between the bottom surface of the first pushing member 21 and the top surface of the second pushing member 22 is smaller than the height of the reaction container 90, the first pushing member 21 contacts with the area of the reaction container 90 above the second pushing member 22 in the moving process of the first pushing member 21 and the second pushing member 22, and pushes the reaction container 90 to move towards the first direction. That is, the reaction container 90 in the error state is moved in the first direction by the cooperation of the second pusher 22 and the first pusher 21 to be pushed out of the accommodating space 11.

Specifically, the position of the reaction vessel 90 after dropping into the accommodating space 11 can be controlled by defining the size of the opening of the reaction vessel transport passage 60 and the position relative to the accommodating space 11.

Third embodiment

As shown in fig. 16 and 17, the present embodiment provides a reaction vessel replenishing apparatus including the reaction vessel screening device provided in the above-described first embodiment or the above-described second embodiment. Since the reaction vessel 90 supplementing apparatus is provided with the reaction vessel 90 screening device, at least all advantages of the reaction vessel 90 screening device are provided, and detailed description thereof is omitted.

In a preferred embodiment, the reaction vessel 90 replenishment apparatus further comprises reaction vessel receiving means 70 and reaction vessel return means 80. The reaction container 90 screening device is used for screening the reaction containers 90 conveyed by the reaction container conveying passage 60, outputting the reaction containers 90 in the correct state to the reaction container receiving device 70, and outputting the reaction containers 90 in the wrong state to the reaction container returning device 80.

Specifically, the material inlet of the reaction container receiving device 70 is located in the second direction of the accommodating space 11, and the material inlet of the reaction container feedback device 80 is located in the first direction of the accommodating space 11, so that the first pushing member 21 pushes the reaction container 90 in the error state to the first direction and then enters the reaction container feedback device 80, so that the reaction container 90 in the error state is transported to the reaction container transport channel 60 by the reaction container feedback device 80, and the reaction container 90 is transported again by the reaction container transport channel 60. And after the second pushing member 22 pushes the reaction vessel 90 in the correct state in the second direction, the reaction vessel 90 in the correct state is directly pushed to the reaction vessel receiving device 70, so that the reaction vessels 90 output through the reaction vessel 90 replenishing device are all in the correct state.

In conclusion, the reaction vessel replenishing equipment provided by the embodiment has high probability of outputting the reaction vessel with the correct state, can automatically screen the reaction vessels with different states, and has high transmission efficiency and high automation degree.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A reaction vessel screening apparatus comprising:

a holder having an accommodating space for holding a reaction vessel;

it is characterized in that the reaction vessel screening device also comprises a reaction vessel screening device,

the pushing piece is connected with the fixed frame in a sliding way and comprises a first pushing piece which pushes the error state reaction container out of the accommodating space along a first direction and a second pushing piece which pushes the correct state reaction container out of the accommodating space along a second direction different from the first direction;

the driver is fixedly connected with the fixed frame to drive the first pushing piece and the second pushing piece to reciprocate in the accommodating space,

the first direction is opposite the second direction,

the fixing frame comprises a guide plate and a first fixing plate arranged opposite to the guide plate, at least one of the guide plate and the first fixing plate is provided with a partition part,

the accommodating space includes an expansion portion and a contraction portion located on a lower side of the expansion portion, the expansion portion and the contraction portion are partitioned by a connecting line of the guide plate, the first fixing plate, or another partition portion facing the partition portion, and a minimum width of a projection of the expansion portion in a plane perpendicular to the second direction is larger than a maximum width of a projection of the contraction portion in a plane perpendicular to the second direction.

2. The reaction vessel screening apparatus of claim 1, wherein the first pushing member includes a first pushing end extending into the accommodating space and a first driving end connected to the driver, the first driving end causes the first pushing end to reciprocate in the expansion portion when the driver is driven, and the second pushing member includes a second pushing end extending into the accommodating space and a second driving end connected to the driver, the second driving end causes the second pushing end to reciprocate in the contraction portion when the driver is driven.

3. The reaction vessel screening apparatus of claim 2, wherein the first driving end is a first rack and extends in the first direction, the second driving end is a second rack and extends in the second direction, the driver includes a motor and a gear on a rotation shaft of the motor, and the first rack and the second rack are respectively engaged with the gear and are arranged to be separated from each other by the gear.

4. The reaction vessel screening apparatus according to claim 3, wherein the fixing frame further comprises a bottom plate and a second fixing plate, the bottom plate is located between the guide plate and the first fixing plate, the accommodating space is a groove surrounded by the first fixing plate, the guide plate and the bottom plate, and the top end of the guide plate is an arc-shaped plate bent away from the first fixing plate;

the second fixing plate is opposite to the first fixing plate, a first through groove and a second through groove are formed in the second fixing plate, the first pushing end penetrates through the first through groove and is located in the groove, and the second pushing end penetrates through the second through groove and is located in the groove;

the motor is arranged on the second fixing plate;

the partition part is a step-shaped protrusion.

5. The apparatus for screening reaction vessels according to any one of claims 1 to 4, wherein the guide plate is further provided with a projection facing the first fixing plate.

6. A reaction vessel screening apparatus comprising:

a holder having an accommodating space for holding a reaction vessel;

the reaction container conveying channel is used for conveying a reaction container into the accommodating space;

the driver is fixedly connected with the fixed frame so as to drive the first pushing piece and the second pushing piece to reciprocate in the accommodating space;

wherein a projection of the reaction vessel transport channel in at least one plane parallel to the second direction overlaps with and only partially overlaps with a projection of the second pusher in the at least one plane,

the first direction is opposite the second direction,

7. A reaction vessel replenishing apparatus, characterized in that it comprises a reaction vessel screening device according to any one of claims 1 to 6.

8. The reaction vessel replenishing apparatus according to claim 7, further comprising: the reaction vessel screening device is used for conveying the reaction vessels in correct states to the reaction vessel receiving device and outputting the reaction vessels in wrong states to the reaction vessel feedback device.