Screening sorting mechanism, sorting device and sample analyzer

Abstract

The application provides a screening and sorting mechanism, a sorting device and a sample analyzer, which are used for screening and sorting materials in a material bin into a sorting flow channel. The material bin is arranged on a rack. The screening and sorting mechanism comprises a material lifting piece, which is used for lifting the materials at the bottom of the material bin to the sorting flow channel. A feeding slit for feeding a single material is arranged on the top side wall of the material lifting piece. A guide surface structure is arranged on the feeding slit. A driving mechanism is used for driving the material lifting piece to lift and lower. The material lifting piece is arranged on the driving mechanism. The driving mechanism is arranged on the rack. The feeding slit arranged on the material lifting piece enables the material lifting piece to lift only one reaction cup at a time, so that abnormal conditions can be avoided to cause faults. The mechanism for blocking the excess materials is simplified, the cost is reduced, and the faults are reduced. The posture of the materials being lifted is determined, abnormal noises caused by impacts do not occur, and the materials are protected during the lifting process, so that the materials are not clamped and injured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, in particular to a screening and sorting mechanism, a sorting device and a sample analyzer. BACKGROUND

[0002] A reaction cup is needed when a chemical immunoassay analyzer is used. A reaction cup sorting and feeding system is generally provided to provide reaction cups to the analyzer. The main function of the system is to transport the reaction cups stored in the cup storage bin to the position required by the analyzer during use. In the prior art, the reaction cups in the bottom of the cup storage bin are generally screened and then sent out. However, since the reaction cups in the cup storage bin are usually in a disordered state, in order to improve convenience, they are often first accumulated in the bin in a disordered state, and then transported one by one to other devices to realize sorting. In the bin, the items at the bottom of the bin are pushed out to the cup inlet flow channel by the lifting plate in a top-down manner, so that the reaction cups slide from the cup inlet flow channel to the next station. However, the existing sorting mechanism has the following problems: 1. The lifting plate may lift more than one reaction cup at a time, and there is a certain probability that it will be stuck in the cup inlet flow channel and cause failure; 2. The mechanism for blocking excess reaction cups is relatively complex and has many parts; 3. The reaction cup may be lifted in a vertical state and may collide to cause abnormal noise; 4. The reaction cup may be lifted and pinched. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a screening and sorting mechanism, a sorting device and a sample analyzer, which are used to solve the problem of mechanism jam caused by the lifting plate lifting excess reaction cups or reaction cups in abnormal posture in the prior art.

[0004] To achieve the above-mentioned purposes and other related purposes, the present application provides a screening and sorting mechanism for screening the materials in the bin into the sorting flow channel. The bin is arranged on a rack. The screening and sorting mechanism comprises:

[0005] A material lifting piece is arranged on the lifting plate and used to lift the materials at the bottom of the bin to the sorting flow channel. A guide surface structure is arranged on the top side wall of the material lifting piece.

[0006] A driving mechanism is arranged on the rack and used to drive the material lifting piece to lift.

[0007] Optionally, the material inlet slit is an inclined strip-shaped long hole, and the height position of the material inlet slit gradually decreases from one end of the material lifting piece to the other end close to the inner side wall of the bin.

[0008] Optionally, one side wall of the material inlet slit has a notch or the two opposite side walls of the material inlet slit are closed.

[0009] Optionally, the slit width of the feeding slit is greater than the outer diameter of a single material and less than the sum of the outer diameters of two materials in a lying position.

[0010] Optionally, the top end of the material lifting member is provided with a first guide surface for pushing away the excess material when the material lifting member is lifted, the first guide surface being an inclined surface facing away from the sorting flow channel.

[0011] Optionally, the guide surface structure comprises a second guide surface provided on the inner wall of the top end of the feeding slit for pushing away the excess material when the material lifting member is lowered, the second guide surface being an inclined surface facing away from the sorting flow channel.

[0012] Optionally, the guide surface structure comprises a third guide surface provided on the inner wall of at least one side of the feeding slit for sliding a single material into the feeding slit, the third guide surface being an inclined surface facing away from the sorting flow channel, and the third guide surface extending in a direction close to the feeding slit.

[0013] Optionally, the guide surface structure comprises a fourth guide surface provided on the inner wall of the bottom end of the feeding slit for sliding the material into the sorting flow channel, the fourth guide surface being an inclined surface facing the sorting flow channel.

[0014] Optionally, the driving mechanism comprises a power source and a transmission structure, the power source being provided on the frame, and the power source being connected to the material lifting member through the transmission structure.

[0015] Optionally, the power source is a driving motor, the transmission structure comprises a driving wheel, a driven wheel and a transmission belt, the driving wheel being connected to the output end of the driving motor, the transmission belt being connected to the driving wheel and the driven wheel, and the material lifting member being connected to the transmission belt.

[0016] Optionally, the device further comprises a guide rail assembly, the guide rail assembly comprising a guide rail provided on the frame and a sliding block provided on the material lifting member, the material lifting member moving up and down along the guide rail through the sliding block.

[0017] Optionally, the material lifting member is provided with a material blocking rod, the material blocking rod moving with the material lifting member.

[0018] Optionally, the device further comprises a disturbing member for correcting the posture of the material, the disturbing member being provided on the frame in a liftable manner, a correction space being formed between the disturbing member and the material lifting member, and the distance between the disturbing member and the material lifting member being less than the length of the material.

[0019] Optionally, the bottom end of the material lifting member is provided with a pushing member for pushing the disturbing member to move upwards, the disturbing member entering the hopper under the action of the pushing member and exiting the hopper under the action of its own weight and the extrusion of the material in the hopper.

[0020] The application also provides a sorting device, comprising:

[0021] a rack;

[0022] a bin arranged on the rack and used for storing materials, the bin being provided with a sorting flow channel leading to the outside;

[0023] and further comprising the screening and sorting mechanism as described above.

[0024] The application also provides a sample analyzer, comprising a reagent sample needle module, a reagent disc module, an incubation module and the screening and sorting mechanism as described above, wherein:

[0025] the reagent disc module is used for storing reagents;

[0026] the reagent sample needle module is used for sucking the sample and the reagents of the reagent disc module and transporting the reagents and the sample into a reaction cup for reaction to form a reaction liquid of the sample and the reagents;

[0027] the incubation module is used for incubating the to-be-tested substances to meet the conditions required by biochemical reactions and performing transportation scheduling.

[0028] As described above, the application has the following beneficial effects:

[0029] (1) The feeding gap arranged on the material lifting piece limits the material lifting piece to lift only one reaction cup at a time, thereby avoiding abnormal state caused faults;

[0030] (2) The mechanism for blocking excess materials is simplified, thereby reducing the cost and the faults;

[0031] (3) The posture of the material is determined when the material is lifted, and no impact sound is caused by collision;

[0032] (4) The posture of the material is determined, so that the material is protected during the lifting process and will not be pinched. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 Structure diagram of the screening and sorting mechanism of the embodiment of the application Figure 1 ;

[0034] Figure 2 Structure diagram of the screening and sorting mechanism of the embodiment of the application Figure 2 ;

[0035] Figure 3 Structure diagram of the material lifting piece of one embodiment of the application;

[0036] Figure 4 Structure diagram of the material lifting piece of another embodiment of the application;

[0037] Figure 5 Structure diagram of the top material piece.

[0038] Part number explanation

[0039] 100 - rack

[0040] 200 - material bin

[0041] 300 - sorting flow channel

[0042] 400 - top material piece; 400a - first guide surface; 401 - feeding slit; 401a - second guide surface; 401b - third guide surface; 401c - fourth guide surface; 402 - clamping block; 403 - sliding block; 404 - material blocking rod; 405 - pushing piece

[0043] 500 - driving mechanism; 501 - driving motor; 502 - driving wheel; 503 - transmission belt

[0044] 601 - guide rail; 602 - disturbing piece; 603 - bevel guide strip

[0045] 700 - reaction cup DETAILED DESCRIPTION

[0046] The embodiments of the present application will be described in detail by specific embodiments, and other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the specification.

[0047] It should be understood that the structures, proportions, sizes, etc. shown in the drawings attached to the specification are only used to understand and read the content disclosed in the specification by those skilled in the art, and are not used to limit the defined conditions under which the present application can be implemented, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the specification are only for the purpose of clear understanding of the description, and are not used to limit the scope of the present application that can be implemented, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also regarded as the scope of the present application that can be implemented.

[0048] Please refer to Figure 1 and Figure 2 , the present application provides a screening and sorting mechanism for screening materials in a material bin 200 into a sorting flow channel 300, the material bin 200 is arranged on a rack 100, the screening and sorting mechanism comprises:

[0049] A top-up piece 400 is used to lift the material at the bottom of the hopper 200 to the sorting flow channel 300. A feeding slit 401 for a single material is formed on the top side wall of the top-up piece 400, and a guide surface structure is arranged on the feeding slit 401.

[0050] A driving mechanism 500 is used to drive the lifting of the top-up piece 400. The top-up piece 400 is arranged on the driving mechanism 500, and the driving mechanism 500 is arranged on the rack 100.

[0051] In this embodiment, the material is taken as an example of a reaction cup 700, which is a container for providing a sample, adding a reagent, reaction, mixing, and detection by an instrument. The hopper 200 is used to load the reaction cup 700, and an internal mechanism is used to realize the uniform flow of the reaction cup 700 out of the hopper 200. A window is arranged on the hopper 200, which can be used to observe the remaining amount and state of the reaction cup 700 in the hopper 200. The sorting flow channel 300 is located at the discharge end of the hopper 200. After the reaction cup 700 is screened and lifted by the top-up piece 400, the reaction cup 700 slides into the sorting flow channel 300 from the side of the sorting flow channel 300. The outer edge of the reaction cup 700 is clamped on the side wall of the sorting flow channel 300, and the reaction cup 700 becomes vertical by gravity. The sorting flow channel 300 has sufficient length to simultaneously accommodate a row of reaction cups 700, which are provided for subsequent components.

[0052] The feeding slit 401 is an inclined strip-shaped long hole, and the height position of the feeding slit 401 gradually decreases from one end of the top-up piece 400 to the other end close to the inner side wall of the hopper 200. In this way, the reaction cup 700 entering the feeding slit 401 can maintain an inclined posture, which is more conducive to subsequent entry into the sorting flow channel 300. The top-up piece 400 limits the number of reaction cups 700 through the feeding slit 401, so that only one reaction cup 700 can slide into the feeding slit 401 when it is located at the bottom of the hopper 200, ensuring that the top-up piece 400 can only lift one reaction cup 700 at a time and will not cause a fault due to an abnormal state. Moreover, due to the arrangement of the feeding slit 401, the reaction cup 700 entering the feeding slit 401 can only be in a lying posture, thereby ensuring that the posture of the reaction cup 700 when being lifted is determined and will not cause an abnormal noise due to impact. Since the reaction cup 700 is in the feeding slit 401 when being lifted, the reaction cup 700 is protected and will not be pinched.

[0053] In some embodiments, one side wall of the feeding slit 401 has a gap or two opposite side walls of the feeding slit 401 are closed. Specifically, refer to Figure 3 In this embodiment, the left side wall of the feeding slit 401 has a gap. During the lifting of the top-up piece 400, the reaction cup 700 in the feeding slit 401 can be prevented from sliding out of the left gap due to the limitation of the inclined angle guide strip 603.Figure 4 In this embodiment, the right side wall of the feeding slit 401 has a notch, and since the feeding slit 401 itself is inclined and the right side is higher than the left side, during the lifting process of the ejector 400, the reaction cup 700 in the feeding slit 401 can be ensured not to slide out of the notch on the right side, by relying on the slope of the feeding slit 401 itself; see Figure 5 In this embodiment, both opposite side walls of the feeding slit 401 are closed, so that the feeding slit 401 is a parallelogram, and when the ejector 400 is at the bottom of the bin, the reaction cup 700 slides into the feeding slit 401 from the side, and when the ejector 400 rises to the inlet of the sequencing channel 300, the reaction cup 700 slides into the sequencing channel 300.

[0054] In some embodiments, the slit width of the feeding slit 401 is greater than the outer diameter of a single material and less than the sum of the outer diameters of two materials in a lying posture. Specifically, by limiting the slit width of the feeding slit 401, it is ensured that only a single material is allowed to enter the feeding slit 401, and the single material enters the slit in a lying posture. This ensures the number of reaction cups 700 lifted by the ejector 400 at one time, and also ensures the posture of the reaction cup 700 when lifted.

[0055] In some embodiments, the top end of the ejector 400 is provided with a first guide surface 400a for pushing away excess materials when the ejector 400 is lifted, and the first guide surface 400a is an inclined surface facing away from the sequencing channel 300. Specifically, see Figure 3 When the ejector 400 moves upward with the reaction cup 700, the first guide surface 400a at the top of the ejector 400 can push away the excess reaction cup 700 in the bin 200, so that smooth upward movement of the ejector 400 can be ensured, and the phenomenon of being blocked will not occur.

[0056] In some embodiments, the guide surface structure includes a second guide surface 401a provided on the inner wall of the top end of the feeding slit 401, for pushing away excess materials when the ejector 400 is lowered, and the second guide surface 401a is an inclined surface facing away from the sequencing channel 300. Specifically, see Figure 3 When the feeding slit 401 of the ejector 400 is empty, the ejector 400 moves downward, and through the second guide surface 401a, the excess reaction cup 700 can be pushed outward, so that the movement of the ejector 400 downward to reset will not be blocked, and the phenomenon of being blocked will not occur.

[0057] In some embodiments, the guide surface structure comprises a third guide surface 401b disposed on the inner wall of at least one side of the feeding slot 401, for guiding the single reaction cup 700 to slide into the feeding slot 401, the third guide surface 401b is an inclined surface facing away from the sorting flow channel 300, and the third guide surface 401b extends along the direction close to the feeding slot 401. Specifically, refer to Figure 3 By the third guide surface 401b, the single reaction cup 700 can be more easily guided to slide into the feeding slot 401.

[0058] In some embodiments, the guide surface structure comprises a fourth guide surface 401c disposed on the inner wall of the bottom end of the feeding slot 401, for guiding the reaction cup 700 to slide into the sorting flow channel 300, the fourth guide surface 401c is an inclined surface facing towards the sorting flow channel 300. Specifically, refer to Figure 3 When the top material piece 400 is raised to the highest position, the fourth guide surface 401c facilitates the reaction cup 700 to slide into the sorting flow channel 300. In this embodiment, the two ends of the third guide surface 401b are connected with the second guide surface 401a and the fourth guide surface 401c, respectively.

[0059] In addition, the driving mechanism 500 is used to drive the lifting of the top material piece 400. The driving mechanism 500 comprises a power source and a transmission structure, the power source is disposed on the rack 100, and the power source is connected with the top material piece 400 through the transmission structure. In some embodiments, the power source is a driving motor 501, the transmission structure comprises a driving wheel 502, a driven wheel (not shown in the figure) and a transmission belt 503, the driving wheel 502 is connected with the output end of the driving motor 501, the transmission belt 503 is connected with the driving wheel 502 and the driven wheel, and the top material piece 400 is connected with the transmission belt 503. Specifically, the bottom of the top material piece 400 is provided with a clamping block 402, the clamping block 402 is clamped on the transmission belt 503, and the top material piece 400 moves with the transmission belt 503. By controlling the forward and reverse rotation of the driving motor 501, the lifting movement of the top material piece 400 is realized.

[0060] In some embodiments, a guide rail 601 assembly is further included, the guide rail 601 assembly comprises a guide rail 601 disposed on the rack 100 and a sliding block 403 disposed on the top material piece 400, and the top material piece 400 moves up and down along the guide rail 601 through the sliding block 403. Specifically, the guide rail 601 is disposed on the rack 100 in the vertical direction and is parallel to the transmission belt 503, and the back side of the top material piece 400 is provided with the sliding block 403, and the sliding block 403 and the guide rail 601 are matched to realize the guiding and supporting of the lifting movement of the top material piece 400.

[0061] In some embodiments, the top material piece 400 is provided with a material blocking rod 404 which moves with the top material piece 400. Specifically, the material blocking rod 404 is located on one side of the top material piece 400 and is fixed on the top material piece 400 to move reciprocatingly and vertically with the top material piece 400. When each reaction cup 700 enters the sorting flow channel 300, it is blocked by the material blocking rod 404. After the posture of the reaction cup 700 is adjusted to be vertical, the reaction cup 700 continues to slide downward, avoiding the reaction cup 700 from rolling and being stuck in the sorting flow channel 300.

[0062] In some embodiments, a disturbing piece 602 for correcting the posture of the material is further included, which is provided on the rack 100 in a vertically adjustable manner, and a correction space is formed between the disturbing piece 602 and the top material piece 400, and the distance between the disturbing piece 602 and the top material piece 400 is less than the length of the material. In this way, the posture of the reaction cup 700 can be adjusted to be parallel to the top material piece 400 by the vertical movement of the disturbing piece 602, so as to slide into the feeding slot 401 on the top material piece 400.

[0063] In some embodiments, the bottom end of the top material piece 400 is provided with a pushing piece 405 for pushing the disturbing piece 602 to move upward. The disturbing piece 602 enters the hopper 200 under the action of the pushing piece 405 and exits the hopper 200 under the action of its own weight and the extrusion of the material in the hopper. Specifically, the pushing piece 405 moves with the top material piece 400, so as to transmit the moving power of the top material piece 400 to the disturbing piece 602. In the initial state, the top material piece 400 is located at the lowest position, and the pushing piece 405 is away from the disturbing piece 602 by a distance. When the top material piece 400 moves upward to a certain height, the pushing piece 405 contacts the disturbing piece 602 and drives the disturbing piece 602 to move upward into the hopper 200, so as to adjust the posture of the reaction cup 700 which is perpendicular to the bottom of the hopper 200 and the top material piece 400 to be parallel. When the top material piece 400 moves downward, the pushing piece 405 is separated from the disturbing piece 602, and the disturbing piece 602 exits the hopper 200 under the action of its own weight and the extrusion of the material in the hopper and falls onto the rack 100.

[0064] The application further provides a sorting device, comprising:

[0065] a rack 100;

[0066] a hopper 200 provided on the rack 100 and used for storing the material, and the hopper 200 is provided with a sorting flow channel 300 which is open to the outside;

[0067] and further comprising the screening and sorting mechanism as described above.

[0068] The application further provides a sample analyzer, comprising a reagent sample needle module, a reagent disc module, an incubation module and the screening and sorting mechanism as described above.

[0069] reagent disc module for storing reagents;

[0070] reagent sample needle module for sucking sample and reagents of the reagent disc module and transporting the sample and reagents to a reaction cup for reaction to form a reaction liquid of sample and reagents;

[0071] incubation module for incubating the analyte to meet the requirements of biochemical reaction and performing transportation scheduling.

[0072] In summary, in the screening and sorting mechanism, the sorting device and the sample analyzer provided by the embodiments of the present application, the feeding piece is limited to lift one reaction cup at a time through the feeding slot arranged on the feeding piece, so as to avoid abnormal state causing failure; the mechanism for blocking excess material is simplified, the cost is reduced, and the failure is reduced; when the material is lifted, its posture is determined, and impact causing abnormal sound will not occur; due to the determined posture of the material, the material is protected during the lifting process, and will not be pinched.

[0073] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A screening and sequencing mechanism for screening material in a bin into a sequencing flow channel, the bin being provided on a frame, characterized in that, The application relates to a screening and sorting mechanism. The application relates to a screening and sorting mechanism. The height of the feeding slit gradually decreases from one end of the material lifting piece to the other end close to the inner side wall of the bin.

2. The screening sorting mechanism of claim 1, wherein: The side wall of the feeding slit has a notch or the two opposite side walls of the feeding slit are closed.

3. The screening sorting mechanism of claim 2, wherein: The width of the feeding slit is greater than the diameter of a single material and less than the sum of the diameters of two materials in a lying position.

4. The screening sorting mechanism of claim 2, wherein: The top end of the material lifting piece is provided with a first guide surface for pushing away the excess materials when the material lifting piece is lifted, and the first guide surface is an inclined surface facing away from the sorting flow channel.

5. The screening sorting mechanism according to any one of claims 1-4, characterized in that: The guide surface structure comprises a second guide surface arranged on the inner wall of the top end of the feeding slit for pushing away the excess materials when the material lifting piece is lowered, and the second guide surface is an inclined surface facing away from the sorting flow channel. The guide surface structure comprises a third guide surface arranged on at least one inner side wall of the feeding slit for enabling a single material to slide into the feeding slit, and the third guide surface is an inclined surface facing away from the sorting flow channel and extends along the direction close to the feeding slit. The guide surface structure comprises a fourth guide surface arranged on the inner wall of the bottom end of the feeding slit for enabling a material to slide into the sorting flow channel, and the fourth guide surface is an inclined surface facing the sorting flow channel. The driving mechanism comprises a power source and a transmission structure, the power source is arranged on the rack, and the power source is connected with the material lifting piece through the transmission structure. The power source is a driving motor, the transmission structure comprises a driving wheel, a driven wheel and a transmission belt, the driving wheel is connected with the output end of the driving motor, the transmission belt is connected with the driving wheel and the driven wheel, and the material lifting piece is connected with the transmission belt.

6. The screening sorting mechanism of any one of claims 1-4, wherein: The material lifting piece is provided with a material blocking rod which moves together with the material lifting piece.

7. The screening sorting mechanism of claim 6, wherein: The application further relates to a disturbing piece for correcting the posture of the materials, the disturbing piece is arranged on the rack in a lifting mode, a correction space is formed between the disturbing piece and the material lifting piece, and the distance between the disturbing piece and the material lifting piece is less than the length of the materials.

8. The screening sorting mechanism of any one of claims 1-4, wherein: The bottom end of the material lifting piece is provided with a pushing piece for pushing the disturbing piece upwards, the disturbing piece enters the bin under the action of the pushing piece and exits the bin under the action of the self weight and the extrusion of the materials in the bin.

9. The screening sorting mechanism of any one of claims 1-4, wherein: The application relates to a screening and sorting mechanism.

10. The screening sorting mechanism of any one of claims 1-4, wherein: The application relates to a screening and sorting mechanism.

11. The screening sorting mechanism of claim 10, wherein: ​ 12. A sequencing device, characterized in that, ​ ​ ​ ​ 13. A sample analyzer characterized by, The screening and sorting mechanism as claimed in any one of claims 1-11, wherein the device further comprises a reagent sample needle module, a reagent disc module, an incubation module, and the screening and sorting mechanism as claimed in any one of claims 1-11. The reagent disc module is used for storing reagents. The reagent sample needle module is used for sucking the sample and the reagents of the reagent disc module, and transporting the reagents and the sample to a reaction cup for reaction to form a reaction solution of the sample and the reagents. The incubation module is used for incubating the analyte to meet the requirements of biochemical reactions and performing transportation scheduling.

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