Reagent card strip automatic recovery device and method

Abstract

The present invention relates to an automatic reagent card strip recovery device and method, and belongs to the technical field of automated laboratory equipment. The automatic reagent card strip recovery device includes: a conveying component, including a guide rail, a conveying slider, a conveying drive device, and a loading platform for placing the reagent card strip, the loading platform is fixed on the slider, the conveying slider is slidably connected to the guide rail and can move along the guide rail; a shedding component includes a shedding slider, a pushing member, and a shedding drive device, the pushing member is fixed on the shedding slider, the shedding slider is slidably connected to the guide rail and can move along the guide rail below the loading platform, the pushing member is provided with a pushing inclined surface at an acute angle to the horizontal direction, and the reagent card strip can move upward and fall off from the loading platform under the pushing action of the pushing member; and a recovery bucket, which is provided below the conveying component and the shedding component, and the recovery bucket opening faces upward. The use of this automatic recovery device can realize the automatic recovery of discarded reagent card strips, and has the advantages of low downtime frequency and high working efficiency of the automated equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of automated experimental equipment, and in particular to an automatic reagent card strip recovery device and method. Background Art

[0002] With the rapid development of science and technology, nucleic acid detection technology has been widely used in the biomedical field. As the demand for nucleic acid testing increases, the experimental cycle time is further shortened, and the requirements for the automation of nucleic acid detection instruments are becoming increasingly higher.

[0003] Currently, existing nucleic acid extraction technologies generally require four steps: lysis, binding, washing, and elution. Conventional extraction methods include centrifugal columns or magnetic beads, and extraction routes include microfluidic cartridges (chips) or deep-well plates.

[0004] In testing laboratories, conventional nucleic acid extraction methods require specialized personnel operating a variety of instruments and equipment to complete multiple steps, including sample pretreatment, nucleic acid extraction and purification, test system formulation, amplification, and detection. The entire process is complex, tedious, and labor-intensive. Furthermore, workers experience fatigue and reduced efficiency from prolonged laboratory work, and may come into contact with wastewater from discarded consumables, potentially causing contamination. Consequently, there is an increasing demand for highly automated, stable instruments that can reduce manual labor.

[0005] However, after conventional automated nucleic acid extraction equipment completes nucleic acid extraction using pre-installed reagent cartridges, it usually uses a mechanical gripper to grab the cartridges and discard them to a predetermined location. This often causes the discarded cartridges (cassettes) to fall into the same location in the recycling bin, resulting in serious material stacking and failure to fully utilize the space in the recycling bin. This requires frequent shutdowns to process discarded cartridges, affecting the working efficiency of the automated nucleic acid processing equipment. Summary of the Invention

[0006] Based on this, it is necessary to provide an automatic reagent card strip recovery device to address the problem that the above-mentioned discarded card strips always fall at the same position in the recycling trash can, causing serious material stacking and failure to fully utilize the space in the recycling trash can. By using this automatic recovery device, the discarded card box can be lifted up and pushed down at any position within a large range, and finally dropped into the recycling trash can, thereby fully utilizing the space in the recycling trash can, reducing the frequency of downtime, and improving the working efficiency of the automated equipment.

[0007] A reagent card strip automatic recycling device, comprising:

[0008] A conveying assembly, comprising a guide rail, a conveying slider, a conveying drive device, and a loading platform for placing a reagent card strip, wherein the loading platform is fixed to the slider, the conveying slider is slidably connected to the guide rail, and the conveying slider can move along the guide rail under the drive of the conveying drive device;

[0009] A shedding assembly includes a shedding slider, a pushing member, and a shedding drive device, wherein the pushing member is fixed to the shedding slider, the shedding slider is slidably connected to the guide rail, and the shedding slider can move along the guide rail under the driving of the shedding drive device under the loading platform, and the pushing member is provided with a pushing inclined surface, and the angle between the pushing inclined surface and the horizontal direction is an acute angle, and the reagent card strip can move upward under the pushing action of the pushing member and fall off the loading platform; and

[0010] The recovery bucket is arranged below the conveying component and the shedding component, and the opening of the recovery bucket faces upward.

[0011] In the automated reagent card strip recovery equipment, the loading platform and the removal assembly are aligned, sharing a linear guideway (or two parallel guideways). Their movements are independently controlled by a conveying drive and a removal drive, respectively. Consequently, the loading platform and the pusher can lift and push discarded reagent strips from any point along their trajectory, ultimately dropping them into the recovery bin. This prevents discarded reagent strips from repeatedly falling into the same spot in the recovery bin, causing significant material accumulation and underutilization of the bin's space. This allows for full utilization of the bin's space, reduces downtime, and improves the efficiency of the automated equipment.

[0012] In one embodiment, the loading platform includes a base plate, a fixed plate, two card support plates, a tension spring, two sliding guide plates, a lifting transmission member and a pushing transmission member.

[0013] The fixed plate is mounted on the base plate, and the two sliding guide plates are slidably mounted on the fixed plate and can move in opposite or opposite directions. The tension spring is arranged between the two sliding guide plates, so that the two sliding guide plates have a tendency to move toward each other. The two card strip support plates are respectively fixed to the distal ends of the two sliding guide plates and are used to jointly support the reagent card strip. The proximal ends of the two sliding guide plates are each provided with a guide member, and the inclined surfaces of the two guide members cooperate to form a wedge-shaped guide groove;

[0014] The pushing member includes a lifting member and a pushing member, and the pushing inclined surface includes a lifting inclined surface provided on the lifting member and a dropping inclined surface provided on the pushing member;

[0015] The lifting transmission member and the pushing transmission member are installed on the base plate, the lower end of the lifting transmission member cooperates with the lifting member, and the upper end corresponds to the wedge-shaped guide groove. The lifting transmission member can be pushed by the lifting inclined surface to move upward, so that the upper end of the lifting transmission member is inserted into the wedge-shaped guide groove, forcing the two sliding guide plates to move in opposite directions; the lower end of the pushing transmission member cooperates with the pushing member, and the upper end corresponds to the reagent card strip. The pushing transmission member can be pushed by the pushing inclined surface to move upward, so that the upper end of the pushing transmission member pushes the reagent card strip upward to detach from the card strip support plate and fall off the loading platform.

[0016] The coordinated design of the above-mentioned loading platform and the pushing member can not only utilize the tension spring and the card support plate on the loading platform to clamp and stably place the reagent card during operations such as pipetting, but also can smoothly push and complete the removal of the reagent card when recycling discarded reagent card. The fixed plate is installed on the base plate, and the fixed plate is installed on the base plate, and has the advantages of stable and compact structure, which can reduce the failure rate of the automatic recovery equipment and improve the practicality of the equipment.

[0017] In one embodiment, the loading platform also includes a lifting elastic member and a pushing-down elastic member, and the base plate is provided with a lifting guide hole and a pushing-down guide hole, the lifting transmission member passes through the lifting guide hole and is installed on the base plate through a limit platform on the lifting transmission member, the lifting elastic member is sleeved on the lifting transmission member, and one end of the lifting elastic member abuts against the base plate, and the other end abuts against the lower end of the lifting transmission member, so that the lifting transmission member has a tendency to move downward; the pushing-down transmission member passes through the pushing-down guide hole and is installed on the base plate through a limit platform on the pushing-down transmission member, the pushing-down elastic member is sleeved on the pushing-down transmission member, and one end of the pushing-down elastic member abuts against the base plate, and the other end abuts against the lower end of the pushing-down transmission member, so that the pushing-down transmission member has a tendency to move downward.

[0018] By the action of the lifting elastic member and the pushing down elastic member, the lifting transmission member and the pushing down transmission member are ensured to be located below the loading platform when the reagent card strip does not need to be recovered, and will not interfere with other process flows of the reagent card strip.

[0019] In one embodiment, the upper end of the push-down transmission member is provided with a push-down guide slope for guiding the reagent card strip to fall off and slide down.

[0020] In one embodiment, the lower ends of the lifting and pushing transmission members are provided with lifting rollers and pushing rollers, respectively, and the lifting and pushing transmission members contact the lifting and pushing rollers with the lifting and pushing rollers, respectively. The rollers can improve the smoothness and stability of the interaction between the shedding assembly and the loading carrier.

[0021] In one embodiment, the loading platform further includes a drop guide plate, which is fixed to the loading platform and has a sloped surface that guides the reagent cartridge from the loading platform toward the opening of the recovery bucket. This design prevents the reagent cartridge from tipping over when it is attached to the cartridge support plate, thereby preventing the liquid in the reagent cartridge from spilling and causing contamination before it reaches the recovery bucket.

[0022] In one embodiment, the automated reagent card recovery device further includes a frame and a guide shield. The conveyor assembly, dropper assembly, and guide shield are all mounted on the frame platform. The frame platform has an opening for the reagent card to fall into the recovery bucket. The guide shield surrounds the conveyor assembly, dropper assembly, and opening. The guide shield encloses the main recovery assembly, further preventing spillage of liquid from the reagent card and causing widespread contamination.

[0023] In one embodiment, the conveying drive device drives the conveying slider to move via a conveying belt, and the shedding drive device drives the shedding slider to move via a shedding belt.

[0024] In one embodiment, there are two recycling barrels, which are stacked up and down. The recycling barrels are respectively distributed in the upper and lower compartments of the rack and can be dragged out and pushed in independently. Therefore, when the instrument is in operation, when the discarded reagent card strips in the first group of recycling barrels (upper layer) above are full, the operator can drag them out and remove and clean the discarded reagent card strips. During the cleaning process, the instrument does not need to be shut down, and the conveying assembly and the falling assembly on the top layer work normally, and the discarded reagent card strips will fall into the second group of recycling barrels (lower layer). Similarly, when it is necessary to clean the discarded reagent card strips in the second group of recycling barrels, it will not affect the collection of the first group of recycling barrels. This design can make more rational use of space, save time, and improve the working efficiency of the instrument.

[0025] The present invention also discloses a method for automatically recovering a reagent card strip, which uses the above-mentioned automatic recovery device for the reagent card strip, and includes the following steps:

[0026] Pipetting: The reagent card is driven by the loading platform and moves along the guide rail to the pipetting state position by the conveying drive device to complete the sample pipetting process;

[0027] Card removal: The shedding drive device drives the shedding slider to drive the pushing piece to move toward the loading platform, and continues to move below the loading platform, so that the pushing inclined surface provided on the pushing piece directly or indirectly pushes the reagent card strip, causing the reagent card strip to move upward and fall off from the loading platform and fall into the recovery bucket.

[0028] In one embodiment, the above-mentioned reagent card strip automatic recycling device is used, and the card removal step includes:

[0029] 1) The shedding drive device drives the shedding slider to drive the pushing piece to move toward the loading platform;

[0030] 2) The pushing member continues to move toward the bottom of the loading platform, and the lifting inclined surface of the lifting member contacts the lower end of the lifting transmission member, and moves the lifting transmission member upward, so that the upper end of the lifting transmission member is inserted into the wedge-shaped guide groove, forcing the two sliding guide plates to move in opposite directions, thereby increasing the distance between the two sliding guide plates and the distance between the two card strip support plates, and the reagent card strip is released from the support of the card strip support plates;

[0031] Simultaneously or subsequently,

[0032] The push-down inclined surface of the push-down member contacts the lower end of the push-down transmission member and moves the push-down transmission member upward, so that the upper end of the push-down transmission member contacts the reagent card strip and pushes the reagent card strip upward to fall off the loading platform and fall into the recovery bucket.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The automatic reagent card strip recovery device of the present invention can automatically push the reagent card strip to fall off and be recovered after the reagent card strip completes the pipetting work and moves to a predetermined position through the cooperation of the falling component and the conveying component. The discarded card box can be lifted up and pushed down at any position within a large range and finally dropped into the recycling trash can, thereby making full use of the space in the recycling trash can, reducing the downtime frequency, and improving the working efficiency of the automated equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of the automatic reagent card recovery equipment;

[0036] Figure 2 It is a schematic diagram of the coordination between the conveying component and the shedding component;

[0037] Figure 3 It is a schematic diagram of the structure of the conveying component and the shedding component;

[0038] Figure 4 for Figure 2 side sectional view;

[0039] Figure 5 This is the exploded view of the loading platform;

[0040] Figure 6 This is a schematic diagram of the cooperation between the sliding guide plate and the lifting piece on the loading platform;

[0041] Figure 7 A cross-sectional view of the conveying assembly and the shedding assembly is provided;

[0042] Figure 8 This is a schematic diagram of the reagent card strip automatic recovery device pushing out the detached reagent card strip.

[0043] Wherein: 100, conveying assembly; 110, guide rail; 120, conveying slider; 130, conveying drive device; 131, conveying belt; 140, loading platform; 141, base plate; 142, fixed plate; 143, card strip support plate; 144, tension spring; 145, sliding guide plate; 1451, guide member; 1452, wedge-shaped guide groove; 146, lifting transmission member; 1461, lifting roller; 1462, lifting elastic member; 147, push-down transmission member; 1471, push-down guide member Toward inclined surface; 1472, push-off roller; 1473, push-off elastic member; 148, shedding guide plate; 200, shedding assembly; 210, shedding slider; 220, pushing member; 221, lifting member; 2211, lifting inclined surface; 222, pushing member; 2221, shedding inclined surface; 230, shedding drive device; 231, shedding belt; 300, recovery barrel; 400, rack; 410, guide cover; 500, reagent card strip; 600, pipetting equipment; 700, mechanical gripper. DETAILED DESCRIPTION

[0044] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0045] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0047] Example 1

[0048] A reagent card strip automatic recycling device, such as Figure 1 As shown, it includes: a conveying component 100, a shedding component 200, a recovery bucket 300 and a frame 400.

[0049] like Figure 2-4As shown, the conveying assembly 100 includes a guide rail 110, a conveying slider 120, a conveying drive device 130, and a loading platform 140 for placing the reagent card strip 500. The loading platform 140 is fixed to the slider, and the conveying slider 120 is slidably connected to the guide rail 110. The conveying slider 120 can move along the guide rail 110 under the drive of the conveying drive device 130. In this embodiment, the conveying drive device 130 drives the conveying slider 120 to move via a conveying belt 131.

[0050] Specifically, the loading platform 140 includes a base plate 141, a fixed plate 142, two card strip support plates 143, a tension spring 144, two sliding guide plates 145, a lifting transmission member 146, and a pushing transmission member 147. The two sliding guide plates 145 are slidably mounted on the fixed plate 142 and can move in opposite or opposite directions. The tension spring 144 is disposed between the two sliding guide plates 145, causing the two sliding guide plates 145 to have a tendency to move toward each other. The two card strip support plates 143 are respectively fixed to the distal ends of the two sliding guide plates 145 to jointly support the reagent card strip 500. The proximal ends of the two sliding guide plates 145 are each provided with a guide member 1451, and the inclined surfaces of the two guide members 1451 cooperate to form a wedge-shaped guide groove 1452.

[0051] Specifically in this embodiment, Figure 5-6 As shown, the loading platform 140 further includes a lifting elastic member 1462 and a push-down elastic member 1473. The base plate 141 is provided with a lifting guide hole and a push-down guide hole. The lifting transmission member 146 passes through the lifting guide hole and is installed on the base plate 141 through the limit platform on the lifting transmission member 146. The lifting elastic member 1462 is sleeved on the lifting transmission member 146, and one end of the lifting elastic member 1462 abuts against the base plate 141, and the other end abuts against the lifting transmission member. The push-down transmission member 147 passes through the push-down guide hole and is installed on the base plate 141 through the limit platform on the push-down transmission member 147. The push-down elastic member 1473 is sleeved on the push-down transmission member 147, and one end of the push-down elastic member 1473 abuts against the base plate 141, and the other end abuts against the lower end of the push-down transmission member 147, so that the push-down transmission member 147 has a tendency to move downward.

[0052] The shedding assembly 200 includes a shedding slider 210, a pushing member 220 and a shedding drive device 230, wherein the pushing member 220 is fixed on the shedding slider 210, and the shedding slider 210 is slidably connected to the guide rail 110. The shedding slider 210 can move along the guide rail 110 under the drive of the shedding drive device 230 under the drive of the shedding drive device 230. A pushing inclined surface is provided on the pushing member 220. In this embodiment, the pushing member 220 includes a lifting member 221 and a pushing member 222. The pushing inclined surface includes a lifting inclined surface 2211 provided on the lifting member 221 and a shedding inclined surface 2221 provided on the pushing member 222. The lifting inclined surface 2211 and the shedding inclined surface 2221 are both at an acute angle to the horizontal direction. The reagent card strip 500 can move upward under the pushing action of the pushing member 220 and fall off the loading platform 140.

[0053] Specifically, the shedding driving device 230 drives the shedding slider 210 to move via the shedding belt 231 .

[0054] The lifting transmission member 146 and the pushing-down transmission member 147 are installed on the base plate 141. The lower end of the lifting transmission member 146 cooperates with the lifting member 221, and the upper end corresponds to the wedge-shaped guide groove 1452. The lifting transmission member 146 can be pushed by the lifting inclined surface 2211 of the lifting member 221 to move upward, so that the upper end of the lifting transmission member 146 is inserted into the wedge-shaped guide groove 1452, forcing the two sliding guide plates 145 to move in opposite directions; the lower end of the pushing-down transmission member 147 cooperates with the pushing-down member 222, and the upper end corresponds to the reagent card strip 500. The pushing-down transmission member 147 can be pushed by the pushing inclined surface of the pushing-down member 222 to move upward, so that the upper end of the pushing-down transmission member 147 pushes the reagent card strip 500 upward to detach from the card strip support plate 143 and fall off the loading platform 140.

[0055] In this embodiment, the upper end of the push-down transmission member 147 is provided with a push-down guide slope 1471 for guiding the reagent card strip 500 to fall off and slide down. The lower ends of the lifting transmission member 146 and the pushing-down transmission member 147 are respectively provided with a lifting roller 1461 and a pushing-down roller 1472, and the lifting transmission member 146 and the pushing-down transmission member 147 are respectively in contact with the lifting slope 2211 and the falling slope 2221 via the lifting roller 1461 and the pushing-down roller 1472.

[0056] The recovery bucket 300 is disposed below the conveying assembly 100 and the shedding assembly 200 , and the opening of the recovery bucket 300 faces upward.

[0057] In order to better guide the reagent card strip 500 to fall off, the loading platform 140 further includes a falling guide plate 148, such as Figure 7-8As shown in FIG. 1 , the guide plate 148 for coming off is fixed on the loading platform 140, and has the slope guided by the loading platform 140 to the opening direction of the recovery bucket 300. The above-mentioned design can prevent the reagent card strip 500 from tipping over when the card strip support plate 143, thereby prevents the liquid of the reagent card strip 500 inside from just splashing out and causing pollution before falling into the recovery bucket 300. And simultaneously set up a guide cover 410, the conveying assembly 100, the falling-off assembly 200 and the guide cover 410 are all installed on the platforms of the rack 400, and the platforms of the rack 400 are provided with the opening for the reagent card strip 500 to fall into the recovery bucket 300, and the guide cover 410 is arranged around the conveying assembly 100, the falling-off assembly 200 and the opening. By the use of the guide cover 410, the main recovery component is enclosed, and the liquid of the reagent card strip 500 inside is further avoided to splash out and cause large-scale pollution.

[0058] In the present embodiment, described recovery barrel 300 is two, and two recovery barrels 300 are stacked up and down.This recovery barrel 300 is respectively distributed in two upper and lower compartments, can independently drag out and push in. Therefore instrument is in the working process, when the waste reagent card bar in the first group of recovery barrel 300 (upper stratum) above is full, the operating personnel can drag it out, removes and cleans the waste reagent card bar. In the cleaning process, instrument does not need to shut down, and the conveying assembly 100 and the falling assembly 200 of the top layer work normally, and the discarded reagent card bar can fall to the second group of recovery barrel (lower floor). In like manner, when needing to clean the waste reagent card bar of the second group of recovery barrel, also can not affect the collection of the first group of recovery barrel. This design can more reasonably utilize space, save time, and improve the working efficiency of instrument.

[0059] In the automated reagent card recovery equipment, the loading platform and ejector assembly are aligned and share a linear guide rail. Their motion is independently controlled by a conveyor drive and ejector drive, respectively. Consequently, the loading platform and ejector can lift and push discarded reagent cards from any point along their trajectory, ultimately dropping them into the recycling bin. This prevents discarded reagent cards from repeatedly falling into the same spot in the recycling bin, causing significant accumulation and underutilization of the bin's space. This allows for full utilization of the bin's space, reduces downtime, and improves the efficiency of the automated equipment.

[0060] Example 2

[0061] A method for automatically recovering a reagent card strip, using the automatic reagent card strip recovery device of Example 1, comprises the following steps:

[0062] 1. Crawl.

[0063] The reagent cartridge 500 is picked up and moved by the robotic gripper 700 and placed on the loading platform 140 .

[0064] 2. Pipetting.

[0065] Driven by the loading platform 140 , the reagent cartridge 500 is moved by the transport drive 130 along the guide rail 110 to the pipetting state position, and the sample pipetting process is completed by the pipetting device 600 .

[0066] 3. Remove the card.

[0067] The shedding drive device drives the shedding slider to move the pushing member toward the loading platform and further moves it below the loading platform, so that the pushing inclined surface provided on the pushing member directly or indirectly pushes the reagent card strip, causing the reagent card strip to move upward and fall off the loading platform and fall into the recovery bucket. Specifically, the following steps are included:

[0068] 1) The shedding drive device 230 drives the shedding slider 210 to drive the pushing member 220 to move toward the loading platform 140;

[0069] 2) The pushing member 220 continues to move downwardly toward the loading platform 140. The lifting inclined surface 2211 of the lifting member 221 contacts the lower end of the lifting transmission member 146, and the lifting transmission member 146 moves upward, so that the upper end of the lifting transmission member 146 is inserted into the wedge-shaped guide groove 1452, forcing the two sliding guide plates 145 to move in opposite directions, thereby increasing the distance between the two sliding guide plates 145 and the distance between the two card strip support plates 143. The reagent card strip 500 is released from the support of the card strip support plates 143.

[0070] Subsequently, the push-down inclined surface of the push-down member 222 contacts the lower end of the push-down transmission member 147 and moves the push-down transmission member 147 upward, so that the upper end of the push-down transmission member 147 contacts the reagent card strip 500 and pushes the reagent card strip 500 upward to fall off from the loading platform 140 and fall into the recovery bucket 300. Figure 8 shown.

[0071] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A reagent card strip automatic recycling device, characterized in that: include: A conveying assembly, comprising a guide rail, a conveying slider, a conveying drive device, and a loading platform for placing a reagent card strip, wherein the loading platform is fixed to the conveying slider, the conveying slider is slidably connected to the guide rail, and the conveying slider can move along the guide rail under the drive of the conveying drive device; A shedding assembly comprises a shedding slider, a pushing member and a shedding drive device, wherein the pushing member is fixed to the shedding slider, the shedding slider is slidably connected to the guide rail, and the shedding slider can move along the guide rail under the drive of the shedding drive device under the loading platform, and the pushing member is provided with a pushing inclined surface, and the angle between the pushing inclined surface and the horizontal direction is an acute angle, and the reagent card strip can move upward under the pushing action of the pushing member and fall off the loading platform; as well as A recovery bucket is provided below the conveying assembly and the shedding assembly, with the opening of the recovery bucket facing upward; The loading platform includes a base plate, a fixed plate, two card support plates, a tension spring, two sliding guide plates, a lifting transmission member and a pushing transmission member. The fixed plate is mounted on the base plate, and the two sliding guide plates are slidably mounted on the fixed plate and can move in opposite or opposite directions. The tension spring is arranged between the two sliding guide plates, so that the two sliding guide plates have a tendency to move toward each other. The two card strip support plates are respectively fixed to the distal ends of the two sliding guide plates and are used to jointly support the reagent card strip. The proximal ends of the two sliding guide plates are each provided with a guide member, and the inclined surfaces of the two guide members cooperate to form a wedge-shaped guide groove; The pushing member includes a lifting member and a pushing member, and the pushing inclined surface includes a lifting inclined surface provided on the lifting member and a dropping inclined surface provided on the pushing member; The lifting transmission member and the pushing-down transmission member are installed on the base plate, the lower end of the lifting transmission member cooperates with the lifting member, and the upper end corresponds to the wedge-shaped guide groove. The lifting transmission member can move upward under the push of the lifting inclined surface, so that the upper end of the lifting transmission member is inserted into the wedge-shaped guide groove, forcing the two sliding guide plates to move in opposite directions; the lower end of the pushing-down transmission member cooperates with the pushing-down member, and the upper end corresponds to the reagent card strip. The pushing-down transmission member can move upward under the push of the falling inclined surface, so that the upper end of the pushing-down transmission member pushes the reagent card strip upward to separate from the card strip support plate and fall off the loading platform; The loading platform further includes a lifting elastic member and a pushing-down elastic member, the base plate is provided with a lifting guide hole and a pushing-down guide hole, the lifting transmission member passes through the lifting guide hole and is installed on the base plate through a limit platform on the lifting transmission member, the lifting elastic member is sleeved on the lifting transmission member, and one end of the lifting elastic member abuts against the base plate, and the other end abuts against the lower end of the lifting transmission member, so that the lifting transmission member has a tendency to move downward; The push-down transmission member passes through the push-down guide hole and is installed on the base plate through the limit platform on the push-down transmission member. The push-down elastic member is sleeved on the push-down transmission member, and one end of the push-down elastic member abuts against the base plate, and the other end abuts against the lower end of the push-down transmission member, so that the push-down transmission member has a tendency to move downward; The loading platform also includes a falling guide plate, which is fixed on the loading platform and has a slope that guides the loading platform toward the opening of the recovery barrel.

2. The automatic reagent card recycling device according to claim 1, characterized in that: The upper end of the push-down transmission member is provided with a push-down guide inclined surface for guiding the reagent card strip to fall off and slide down.

3. The automatic reagent card recycling device according to claim 1, characterized in that: The lower ends of the jacking transmission member and the pushing-down transmission member are respectively provided with a jacking roller and a pushing-down roller, and the jacking transmission member and the pushing-down transmission member are respectively in contact with the jacking inclined surface and the falling inclined surface through the jacking roller and the pushing-down roller.

4. The automatic reagent card recycling device according to claim 3, characterized in that: It also includes a frame and a guide cover. The conveying component, the falling component and the guide cover are all installed on the platform of the frame. The platform of the frame is provided with an opening for the reagent card strip to fall into the recovery barrel. The guide cover is arranged around the conveying component, the falling component and the opening.

5. The automatic reagent card recycling device according to claim 1, characterized in that: The conveying drive device drives the conveying slider to move via a conveying belt, and the shedding drive device drives the shedding slider to move via a shedding belt.

6. The automatic reagent card recycling device according to claim 1, characterized in that: There are two recycling bins, which are stacked up and down.

7. A method for automatically recovering a reagent card strip, characterized in that: The automatic reagent card recovery device according to any one of claims 1 to 6 comprises the following steps: Pipetting: The reagent card is driven by the loading platform and moves along the guide rail to the pipetting state position by the conveying drive device to complete the sample pipetting process; Card removal: The shedding drive device drives the shedding slider to drive the pushing piece to move toward the loading platform and continue to move below the loading platform. The pushing piece is provided with a pushing inclined surface to directly or indirectly push the reagent card strip, so that the reagent card strip moves upward and falls off from the loading platform and falls into the recovery bucket.

8. The method for automatically recycling a reagent card strip according to claim 7, characterized in that: The card removal step includes: 1) The shedding drive device drives the shedding slider to drive the push piece to move toward the loading platform; 2) The pushing member continues to move toward the bottom of the loading platform, and the lifting inclined surface of the lifting member contacts the lower end of the lifting transmission member, and moves the lifting transmission member upward, so that the upper end of the lifting transmission member is inserted into the wedge-shaped guide groove, forcing the two sliding guide plates to move in opposite directions, thereby increasing the distance between the two sliding guide plates and the distance between the two card strip support plates, and the reagent card strip is released from the support of the card strip support plates; Simultaneously or subsequently, The falling inclined surface of the push-down member contacts the lower end of the push-down transmission member and moves the push-down transmission member upward, so that the upper end of the push-down transmission member contacts the reagent card strip and pushes the reagent card strip upward to fall off the loading platform and fall into the recovery bucket.

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