Continuous supply device and sample analyzer

Abstract

The application discloses a continuous sample rack feeding device and a sample analyzer. The continuous sample rack feeding device comprises a main body, a pre-storage blocking structure, a blocking structure and a stepping structure. The track channel comprises a pre-storage area, a detection area, a detection area and a detected area which are sequentially communicated. The pre-storage blocking structure moves between the first position and the second position. The blocking structure comprises a mounting shaft, a detection position blocking sheet and a detection position blocking sheet which are arranged on the mounting shaft. The detection position blocking sheet rotates to connect or separate the detection area and the detection area. The detection position blocking sheet rotates to connect or separate the detection area and the detected area. When the detection position blocking sheet stops the sample rack, the sample cup on the sample rack near the detected area is in the detection position. The stepping structure steps in the first direction to make the multiple sample cups on the sample rack pass through the detection position one by one. The pre-storage blocking structure, the detection position blocking sheet and the detection position blocking sheet are matched to realize the rapid switching of the sample rack, the continuous sampling of the sample without interruption and the continuous conveying of the sample.

Description

Technical Field

[0001] This invention relates to the field of sample analyzers, and more specifically to a continuous feed rack device and a sample analyzer. Background Technology

[0002] Currently, sample analyzers can perform immunological and biochemical analyses on body fluids such as blood, urine, pleural effusion, peritoneal fluid, and cerebrospinal fluid, including clinical tests such as myocardial enzyme profiles, blood glucose, blood lipids, liver function, kidney function, and immunoglobulins. Blood samples are collected and placed in sample cups, which are then placed on sample racks. The samples on the racks are then tested step-by-step. To ensure efficient and continuous sample delivery across multiple racks, a pre-storage mechanism is typically added before the testing area. When the testing area's sample racks have finished testing, the pre-storage racks are moved to the testing area. However, in existing technologies, the distance between the pre-storage area and the testing area is relatively long, resulting in slow sample rack switching efficiency. Summary of the Invention

[0003] The main objective of this invention is to provide a continuous rack feeding device and a sample analyzer to solve the problem of slow sample rack switching efficiency.

[0004] To achieve the above objectives, the present invention proposes a continuous feeding device for testing sample racks, wherein multiple sample cups are spaced apart on the sample racks. The continuous feeding device includes a main body, a pre-storage blocking structure, a blocking structure, and a stepping structure. The main body includes a driving structure and forms a track channel extending along a first direction. The driving structure drives the sample rack to move within the track channel. The track channel includes a pre-storage area, a testing area, a testing area, and a tested area connected sequentially. The pre-storage blocking structure is connected to the main body and is positioned at the connection between the pre-storage area and the testing area. The pre-storage blocking structure moves between a first position and a second position. When the pre-storage blocking structure is in the first position, it connects the pre-storage area and the testing area. When the pre-storage blocking structure is in the first position, it connects the pre-storage area and the testing area. In the second position, the pre-storage blocking structure separates the pre-storage area and the area to be inspected; the blocking structure includes a mounting shaft and detection position baffles and inspection position baffles spaced apart on the mounting shaft, the mounting shaft extends along the first direction, the inspection position baffle is disposed between the area to be inspected and the detection area, the inspection position baffle rotates to connect or separate the area to be inspected and the detection area; the detection position baffle is disposed between the detection area and the inspected area, the detection position baffle rotates to connect or separate the detection area and the inspected area; when the detection position baffle stops the sample holder, the sample cups on the sample holder near the inspected area are in the detection position; the stepping structure is used to stop the sample holder, the stepping structure moves stepwise along the first direction so that the plurality of sample cups on the sample holder pass through the detection position in sequence.

[0005] Optionally, the distance between two adjacent sample cups on the sample holder is defined as D1, and the distance between the detection baffle and the test baffle is defined as D2; wherein, 2D1 < D2 < 3D1.

[0006] Optionally, the continuous feeding device further includes a drive assembly, which includes a drive motor, a mounting plate, and a transmission structure. The drive motor is detachably connected to the mounting plate via a locking member. The output end of the drive motor passes through the mounting plate and is connected to the mounting shaft via the transmission structure.

[0007] Optionally, the transmission structure includes a driven wheel and a timing belt. One end of the driven wheel is rotatably connected to the mounting plate, and the other end of the driven wheel is connected to the mounting shaft. The timing belt is wound around the driven wheel and the output end of the drive motor to drive the mounting shaft to rotate.

[0008] Optionally, the continuous feeding device further includes a positioning structure, which includes a positioning optocoupler, a connecting plate, and a first sensing plate. The connecting plate is connected to the mounting plate, the positioning optocoupler is connected to the connecting plate, the first sensing plate is connected to the output end of the drive motor, and the positioning optocoupler has a first sensing groove through which the first sensing plate passes.

[0009] Optionally, the angle between the detection position baffle and the test position baffle is 120°; the first sensing sheet is fan-shaped and the central angle of the first sensing sheet is 120°; when the first sensing sheet enters the first sensing slot, the detection position baffle extends into the track channel to stop the sample holder.

[0010] Optionally, the pre-stored blocking structure includes a driving member and a blocking rod. The blocking rod is connected to the output end of the driving member. The driving member rotates to drive the blocking rod to rotate between the first position and the second position so that the blocking rod connects or separates the pre-stored area and the area to be inspected.

[0011] Optionally, the pre-stored plug structure further includes a pre-stored positioning component, which includes a fixed plate and a pre-stored optocoupler. The fixed plate is connected to the driving component, the pre-stored optocoupler is connected to the fixed plate, the plug rod is connected to a second sensing plate, and the pre-stored optocoupler forms a second sensing groove through which the second sensing plate passes.

[0012] Optionally, the main body is provided with a baffle plate, which is disposed within the track channel. The stepping structure includes a stop mechanism and a drive mechanism. The stop mechanism includes a connecting seat and a stop block. The stop block is rotatably connected to the connecting seat and rotates between an extended position and a retracted position. When the stop block is in the extended position, a portion of the stop block is exposed in the track channel to stop the sample holder. When the stop block is in the retracted position, the stop block disengages from the sample holder. The stop block abuts against the baffle plate to push the stop block to rotate from the extended position to the retracted position. The drive mechanism is connected to the main body, and the output end of the drive mechanism is connected to the connecting seat. The drive mechanism drives the connecting seat to step along the first direction.

[0013] Optionally, the stepping structure further includes a monitoring mechanism, which includes a monitoring optocoupler and a code disk. The code disk is linked to the connecting seat and has multiple stepping baffles. The number of stepping baffles is the same as the number of sample cups on the sample holder and they are arranged in a one-to-one correspondence. The monitoring optocoupler is connected to the main body, and the monitoring optocoupler cooperates with the stepping baffles to drive the driving mechanism to drive the connecting seat to step along the first direction.

[0014] In addition, the present invention also provides a sample analyzer, which includes the continuous feeding rack device described above.

[0015] In this invention, a sample holder extends in a left-right direction, and multiple sample cups are spaced apart on the sample holder in the left-right direction. A track channel extends in a left-right direction, and a driving component acts as a power source, driving the sample holder and sample cups to move left-right within the track channel. The track channel includes a pre-storage area, a waiting area, a detection area, and a detected area connected sequentially from left to right. A stepping structure stops the sample holder, and the stepping structure moves in a left-right direction, causing the sample holder to also move in steps, thus allowing the multiple sample cups on the sample holder to sequentially pass through the detection positions for detection. A mounting shaft moves in a left-right direction and is used to install and fix the detection position baffle and the waiting position baffle; rotation of the mounting shaft drives the detection position baffle and the waiting position baffle to rotate. The mounting shaft rotates in three states: a first state, a second state, and a third state. In the first state, the inspection position baffle rotates to separate the inspection area and the detection area, and the detection position baffle rotates to connect the detection area and the inspected area. In the second state, the inspection position baffle rotates to connect the inspection area and the detection area, and the detection position baffle rotates to separate the detection area and the inspected area. In the third state, the inspection position baffle rotates to connect the inspection area and the detection area, and the detection position baffle rotates to connect the detection area and the inspected area.

[0016] Taking a sample rack with ten sample cups as an example, the sample cups on the rack are numbered from right to left as the first sample cup, the second sample cup, and so on up to the tenth sample cup. Each subsequent sample rack moves from left to right, first entering the pre-storage area, where the pre-storage stop structure is in its second position, stopping the subsequent sample rack. The previous sample rack enters the detection area and is stopped by the detection position stop plate, meaning the mounting shaft is in its second state, and the first sample cup of the previous sample rack is in the detection position. Once the first sample cup on the current sample rack has been tested, the mounting shaft rotates to the third state. The detection position baffle rotates to connect the detection area and the tested area, and the test position baffle rotates to connect the test area and the detection area. The previous sample rack moves step by step with the stepping structure until the ninth sample cup on the previous sample rack is in the detection position. At this point, the pre-storage baffle structure moves to the first position, connecting the pre-storage area and the test area. The next sample rack enters the test area, the mounting shaft rotates to the first state, and the test position baffle rotates to separate the test area and the detection area, meaning the next sample rack is stopped by the test position baffle. The tenth sample cup on the current sample rack has been tested, the previous sample rack has fully entered the inspected area, and the stepping structure no longer stops the previous sample rack; at the same time, the mounting shaft rotates to the second state, the test position baffle rotates to connect the test area and the test area, and the test position baffle rotates to separate the test area and the inspected area. The next sample rack enters the test area and is stopped by the test position baffle. The first sample cup on the next sample rack is located at the test position. The test position baffle is mainly used to stop the next sample rack during the stepping structure reset time; at the same time, the pre-storage baffle structure moves to the second position, the pre-storage area and the test area are separated, and the next sample rack is stopped by the pre-storage baffle structure for pre-storage. When the first sample cup on the next sample rack is inspected, the mounting shaft rotates to the third state. The detection position baffle rotates to connect the detection area and the inspected area, and the inspection position baffle rotates to connect the inspection area and the detection area. At this time, the stepping structure moves to the left and returns to the initial position. The right end of the next sample rack is stopped by the stepping structure. As the stepping structure moves, multiple sample cups on the sample rack pass through the detection position in sequence for inspection. When the ninth sample cup on the next sample rack is in the detection position, the pre-storage baffle structure moves to the first position, connecting the pre-storage area and the inspection area. The next sample rack then enters the inspection area, and the inspection of the next sample rack is completed in the same way.

[0017] This invention utilizes a pre-storage blocking structure to pre-store sample racks and employs a combination of a test-position baffle and a detection-position baffle. This ensures that when the previous sample rack is testing its ninth sample, the next sample rack has already reached its test-position baffle, and when the previous sample rack has finished testing its tenth sample, the next sample rack enters the testing area. By using the pre-storage blocking structure and the coordinated use of the test-position and detection-position baffles, rapid switching of sample racks and uninterrupted continuous sample loading are achieved, guaranteeing continuous sample delivery. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of a continuous feeding rack device according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the pre-stored plug structure located in the first position according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the first state of the installed shaft according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the second state of the installed shaft according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the third state of the installed shaft according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the connection structure of the blocking structure according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of a pre-stored plug structure according to an embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of a stepping structure according to an embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the block structure according to an embodiment of the present invention.

[0028] Explanation of icon numbers:

[0029]

[0030]

[0031] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0034] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0037] In this invention, the descriptions of directions such as "up," "down," "front," "back," "left," and "right" are as follows: Figure 1 The directions shown are for reference only and are used to interpret the location. Figure 1 The relative positional relationship between the components in the shown posture is such that if the specific posture changes, the directional indication will also change accordingly.

[0038] The present invention provides a continuous feeding rack device 100.

[0039] The first direction is Figure 1 The left and right directions in the middle.

[0040] In one embodiment, such as Figures 1 to 9 As shown, the continuous feeding device 100 is used to test the sample rack 200, on which multiple sample cups 201 are spaced apart. The continuous feeding device 100 includes a main body 10, a pre-storage blocking structure 20, a blocking structure 30, and a stepping structure 40. The main body 10 includes a driving structure and forms a track channel 11 extending along a first direction. The driving structure is used to drive the sample rack 200 to move within the track channel 11. The track channel 11 includes a pre-storage area 111, a test area 112, a test area 113, and a tested area 114 connected in sequence. The pre-storage blocking structure 20 is connected to the main body 10 and is located at the connection between the pre-storage area 111 and the test area 112. The pre-storage blocking structure 20 moves between a first position and a second position. When the pre-storage blocking structure 20 is in the first position, it connects the pre-storage area 111 and the test area 112. In the second position, the pre-storage blocking structure 20 separates the pre-storage area 111 and the inspection area 112; the blocking structure 30 includes a mounting shaft 31 and a detection position baffle 33 and an inspection position baffle 32 spaced apart on the mounting shaft 31. The mounting shaft 31 extends along the first direction. The inspection position baffle 32 is disposed between the inspection area 112 and the inspection area 113. The inspection position baffle 32 rotates to connect or separate the inspection area 112 and the inspection area 113; the detection position baffle 33 is disposed between the inspection area 113 and the inspected area 114. The detection position baffle 33 rotates to connect or separate the inspection area 113 and the inspected area 114; when the detection position baffle 33 stops the sample rack 200, the sample cup 201 on the sample rack 200 near the inspected area 114 is in the detection position; the stepping structure 40 is used to stop the sample rack 200. The stepping structure 40 moves step by step along the first direction so that multiple sample cups 201 on the sample rack 200 pass through the detection position in sequence.

[0041] The sample holder 200 extends in the left-right direction, and multiple sample cups 201 are spaced apart on the sample holder 200 in the left-right direction. The track channel 11 extends in the left-right direction, and the drive unit 21 serves as the power source, driving the sample holder 200 and sample cups 201 to move in the left-right direction within the track channel 11. The track channel 11 includes a pre-storage area 111, a waiting area 112, a detection area 113, and a detected area 114 connected sequentially from left to right. The stepping structure 40 stops the sample holder 200 and moves in the left-right direction, causing the sample holder 200 to also move in steps, thereby allowing the multiple sample cups 201 on the sample holder 200 to pass through the detection positions sequentially for detection. The mounting shaft 31 moves in the left-right direction and is used to install and fix the detection position baffle 33 and the waiting position baffle 32. The rotation of the mounting shaft 31 drives the detection position baffle 33 and the waiting position baffle 32 to rotate. The mounting shaft 31 rotates in three states: a first state, a second state, and a third state. In the first state, the inspection position baffle 32 rotates to separate the inspection area 112 and the detection area 113, and the detection position baffle 33 rotates to connect the detection area 113 and the inspected area 114. In the second state, the inspection position baffle 32 rotates to connect the inspection area 112 and the detection area 113, and the detection position baffle 33 rotates to separate the detection area 113 and the inspected area 114. In the third state, the inspection position baffle 32 rotates to connect the inspection area 112 and the detection area 113, and the detection position baffle 33 rotates to connect the detection area 113 and the inspected area 114.

[0042] Taking a sample rack 200 with ten sample cups 201 as an example, the sample cups 201 on the sample rack 200, from right to left, are the first sample cup 201, the second sample cup 201, ... the tenth sample cup 201. Please refer to the reference. Figure 2 The next copy holder 200 moves from left to right, first entering the pre-storage area 111. The pre-storage stop structure 20 is in the second position, and the next copy holder 200 is stopped by the pre-storage stop structure 20. Please refer to the reference. Figure 3When the previous sample holder 200 enters the detection area 113 and is stopped by the detection position baffle 33, that is, the mounting shaft 31 is in the second state, and the first sample cup 201 of the previous sample holder 200 is located at the detection position. When the first sample cup 201 on the current sample holder 200 has been inspected, the mounting shaft 31 rotates to the third state, the detection position baffle 33 rotates to connect the detection area 113 and the inspected area 114, and the inspection position baffle 32 rotates to connect the inspection area 112 and the detection area 113. The previous sample holder 200 moves step by step with the stepping structure 40 until the ninth sample cup 201 on the previous sample holder 200 is in the detection position for inspection. At this point, the pre-storage baffle structure 20 moves to the first position, connecting the pre-storage area 111 and the inspection area 112. The next sample holder 200 enters the inspection area 112, the mounting shaft 31 rotates to the first state, and the inspection position baffle 32 rotates to separate the inspection area 112 and the detection area 113, meaning the next sample holder 200 is stopped by the inspection position baffle 32. Please refer to the reference. Figure 4 and Figure 5 The tenth sample cup 201 on the current sample holder 200 has been inspected. The previous sample holder 200 has fully entered the inspected area 114, and the stepping structure 40 no longer stops the previous sample holder 200. At the same time, the mounting shaft 31 rotates to the second state, the inspection position baffle 32 rotates to connect the inspection area 112 and the inspection area 113, and the inspection position baffle 33 rotates to separate the inspection area 113 and the inspected area 114. The next sample holder 200 enters the inspection area 113 and is stopped by the inspection position baffle 33. The first sample cup 201 on the next sample holder 200 is located at the inspection position. The inspection position baffle 33 is mainly used to stop the next sample holder 200 during the reset time of the stepping structure 40. At the same time, the pre-storage baffle structure 20 moves to the second position, separating the pre-storage area 111 and the inspection area 112. The next sample holder 200 is then stopped by the pre-storage baffle structure 20 for pre-storage. Please refer to the reference. Figure 2 When the first sample cup 201 on the next sample holder 200 is detected, the mounting shaft 31 rotates to the third state, the detection position baffle 33 rotates to connect the detection area 113 and the inspected area 114, and the inspection position baffle 32 rotates to connect the inspection area 112 and the detection area 113. At this time, the stepping structure 40 moves to the left and returns to the initial position. The right end of the next sample holder 200 is stopped by the stepping structure 40. As the stepping structure 40 moves step by step, multiple sample cups 201 on the sample holder 200 pass through the detection position in sequence for detection. When the ninth sample cup 201 on the next sample holder 200 is in the detection position, the pre-storage baffle structure 20 moves to the first position, and the pre-storage area 111 and the inspection area 112 are connected. The next sample holder 200 then enters the inspection area 112, and the detection of the next sample holder 200 is completed in the same way.

[0043] This invention uses a pre-storage blocking structure 20 to pre-store samples in the sample rack 200, and sets up a detection position baffle 32 and a testing position baffle 33 to work together. This ensures that when the previous sample rack 200 is testing the ninth sample, the next sample rack 200 has already reached the detection position baffle 32, and when the previous sample has finished testing the tenth sample, the next sample rack 200 enters the testing area 113. By setting up the pre-storage blocking structure 20 and the cooperation of the detection position baffle 32 and the testing position baffle 33, the sample rack 200 can be quickly switched, and samples can be continuously fed without interruption, ensuring continuous sample delivery.

[0044] In one embodiment, please refer to the reference Figure 2 The distance between two adjacent sample cups 201 on the sample holder 200 is defined as D1, and the distance between the detection position baffle 33 and the test position baffle 32 is defined as D2; where 2D1 < D2 < 3D1.

[0045] When the ninth sample cup 201 on the previous sample holder 200 is in the detection position, the pre-storage blocking structure 20 moves to the first position, connecting the pre-storage area 111 and the inspection area 112. The next sample holder 200 then enters the inspection area 112, and the mounting shaft 31 rotates to the first state. The inspection position baffle 32 separates the inspection area 112 from the detection area 113, meaning the next sample holder 200 is stopped by the inspection position baffle 32. If D2 < 2D1, the inspection position baffle 32 will interfere with the previous sample holder 200, causing damage. If D2 > 3D1, the distance between the inspection position baffle 32 and the detection position baffle 33 is too long, reducing the switching efficiency of the sample holder 200.

[0046] In one embodiment, please refer to the reference Figure 6 The continuous feeding device 100 also includes a drive assembly 50, which includes a drive motor 51, a mounting plate 52 and a transmission structure. The drive motor 51 is detachably connected to the mounting plate 52 through a locking member. The output end of the drive motor 51 passes through the mounting plate 52 and is connected to the mounting shaft 31 through the transmission structure.

[0047] The drive motor 51 serves as the power source, offering advantages such as stable output and ease of installation. The drive motor 51 is detachably connected to the mounting plate 52 via a locking mechanism, specifically a bolt, which is readily available and easy to install. Furthermore, the detachable connection between the drive motor 51 and the mounting plate 52 facilitates replacement of the drive motor 51 after wear, improving its usability. The output end of the drive motor 51 is connected to the mounting shaft 31 via a transmission structure; rotation of the drive motor 51 drives rotation of the mounting shaft 31.

[0048] In one embodiment, please refer to the reference Figure 6The transmission structure includes a driven wheel 53 and a synchronous belt 54. One end of the driven wheel 53 is rotatably connected to the mounting plate 52, and the other end of the driven wheel 53 is connected to the mounting shaft 31. The synchronous belt 54 is wrapped around the driven wheel 53 and the output end of the drive motor 51 to drive the mounting shaft 31 to rotate.

[0049] A synchronous belt 54 is wound around the driven pulley 53 and the output end of the drive motor 51. The synchronous belt 54 extends in the vertical direction, and the transmission structure is connected to the mounting shaft 31 by setting the driven pulley 53. The rotation of the drive motor 51 drives the synchronous belt 54 to rotate, the synchronous belt 54 drives the driven pulley 53 to rotate, and the driven pulley 53 drives the mounting shaft 31 to rotate.

[0050] In one embodiment, please refer to the reference Figure 6 The continuous feeding device 100 also includes a positioning structure 60, which includes a positioning optocoupler 61, a connecting plate 62, and a first sensing plate 63. The connecting plate 62 is connected to the mounting plate 52, the positioning optocoupler 61 is connected to the connecting plate 62, and the first sensing plate 63 is connected to the output end of the drive motor 51. The positioning optocoupler 61 has a first sensing groove 611 through which the first sensing plate 63 passes.

[0051] The connecting plate 62 is connected to the mounting plate 52 to realize the installation and fixation of the positioning structure 60. The positioning optocoupler 61 is installed by connecting to the connecting plate 62. The first sensing plate 63 is connected to the output end of the drive motor 51. The drive motor 51 rotates synchronously with the mounting shaft 31 through the synchronous belt 54, that is, the first sensing plate 63 rotates synchronously with the mounting shaft 31. The positioning optocoupler 61 has a first sensing groove 611. The rotation of the mounting shaft 31 is detected by the first sensing plate 63 passing through the first sensing groove 611.

[0052] In one embodiment, please refer to the reference Figure 6 The angle between the detection position baffle 33 and the test position baffle 32 is 120°; the first sensing plate 63 is fan-shaped and the central angle of the first sensing plate 63 is 120°; when the first sensing plate 63 enters the first sensing groove 611, the detection position baffle 33 extends into the track channel 11 to stop the sample holder 200.

[0053] The angle between the detection position baffle 33 and the position baffle 32 to be inspected is 120°. The mounting shaft 31 rotates 120° each time, switching between the first, second, and third states. The central angle of the first sensing element 63 is 120°, corresponding to the angle between the detection position baffle 33 and the position baffle 32 to be inspected. Please refer to the reference. Figure 6When the first sensing element 63 rotates counterclockwise, and one end of the first sensing element 63 enters the first sensing groove 611, the mounting shaft 31 is in the second state. The detection position baffle 33 extends into the track channel 11 to separate the detection area 113 and the inspected area 114, and the inspection position baffle 32 connects the inspection area 112 and the detection area 113. When the other end of the first sensing element 63 enters the first sensing groove 611, the mounting shaft 31 is in the first state. The inspection position baffle 32 separates the inspection area 112 and the detection area 113, and the detection position baffle 33 connects the detection area 113 and the inspected area 114. When the first sensing element 63 is not in the first sensing groove 611, the mounting shaft 31 is in the third state. The inspection position baffle 32 connects the inspection area 112 and the detection area 113, and the detection position baffle 33 connects the detection area 113 and the inspected area 114. By cooperating with the first sensing plate 63 and the first sensing groove 611, the switching between the first state, the second state and the third state of the detection mounting shaft 31 is realized, making the use of the blocking structure 30 more reliable and stable.

[0054] In one embodiment, please refer to the reference Figure 7 The pre-stored blocking structure 20 includes a driving member 21 and a blocking rod 22. The blocking rod 22 is connected to the output end of the driving member 21. The driving member 21 rotates to drive the blocking rod 22 to rotate between a first position and a second position so that the blocking rod 22 connects or separates the pre-stored area 111 and the inspection area 112.

[0055] The driving component 21 provides power and can be a motor, which has the advantages of stable output and easy installation. The output end of the driving component 21 is connected to the stop rod 22. The rotation of the driving component 21 drives the stop rod 22 to rotate between the first position and the second position, so that the stop rod 22 connects or separates the pre-storage area 111 and the inspection area 112, thereby realizing the pre-storage or release of the pre-storage stop structure 20.

[0056] In other embodiments, the driving member 21 can drive the blocking rod 22 to move in the front-back direction between a first position and a second position, so that the blocking rod 22 connects or separates the pre-storage area 111 and the inspection area 112. The movement of the blocking rod 22 can be flexibly adjusted as needed, and the present invention does not limit the movement of the blocking rod 22.

[0057] In one embodiment, please refer to the reference Figure 7 The pre-stored plug structure 20 also includes a pre-stored positioning component, which includes a fixed plate 23 and a pre-stored optocoupler 24. The fixed plate 23 is connected to the driving component 21, and the pre-stored optocoupler 24 is connected to the fixed plate 23. The plug rod 22 is connected to the second sensing plate 25, and the pre-stored optocoupler 24 forms a second sensing groove 241 through which the second sensing plate 25 passes.

[0058] The mounting plate 23 is connected to the drive component 21 to achieve its installation. The mounting plate 23 is used to fix the pre-stored optocoupler 24. The blocking rod 22 is connected to the second sensing plate 25. The second sensing plate 25 cooperates with the second sensing slot 241 to detect the switching of the blocking rod 22 between the first position and the second position, making the use of the pre-stored blocking structure 20 more reliable.

[0059] In one embodiment, please refer to the reference Figure 2 , Figure 8 and Figure 9 The main body 10 is provided with a baffle 12, which is disposed in the track channel 11. The stepping structure 40 includes a stop mechanism 41 and a drive mechanism 42. The stop mechanism 41 includes a connecting seat 411 and a stop block 412. The stop block 412 is rotatably connected to the connecting seat 411 and rotates between an extended position and a retracted position. When the stop block 412 is in the extended position, part of the stop block 412 is exposed in the track channel 11 to stop the sample rack 200. When the stop block 412 is in the retracted position, the stop block 412 is disengaged from the sample rack 200. The stop block 412 abuts against the baffle 12 to push the stop block 412 to rotate from the extended position to the retracted position. The drive mechanism 42 is connected to the main body 10, and the output end of the drive mechanism 42 is connected to the connecting seat 411. The drive mechanism 42 drives the connecting seat 411 to step along a first direction.

[0060] The drive mechanism 42 drives the connecting seat 411 and the stop block 412 to move to the right in a stepping motion. The stop block 412 is in the extended position, with part of the stop block 412 exposed in the track channel 11. The sample rack 200 is stopped by the stop block 412 and moves synchronously with the stop block 412, realizing the step-by-step detection of multiple sample cups 201 on the sample rack 200. When all the sample cups 201 on the sample rack 200 have been detected, the stop block 412 abuts against the baffle 12. The baffle 12 pushes the stop block 412 to rotate relative to the connecting seat 411. The stop block 412 rotates from the extended position to the retracted position, and the stop block 412 disengages from the sample rack 200, allowing the sample rack 200 to enter the next step. Then, the drive mechanism 42 drives the connecting seat 411 and the stop block 412 to move to the left to the initial position. The stop block 412 returns to the extended position and stops the next sample rack 200, realizing step-by-step detection of multiple sample cups 201 on the next sample rack 200. By cooperating with the baffle 12, the stop block 412 can rotate between the extended position and the retracted position, thereby stopping or releasing the sample rack 200.

[0061] In one embodiment, please refer to the reference Figure 8The stepping structure 40 also includes a monitoring mechanism 43, which includes a monitoring optocoupler 431 and a code disk 432. The code disk 432 is linked to the connecting seat 411. The code disk 432 is provided with multiple stepping baffles 4321. The number of stepping baffles 4321 is the same as the number of sample cups 201 on the sample holder 200 and they are set one-to-one. The monitoring optocoupler 431 is connected to the main body 10. The monitoring optocoupler 431 and the stepping baffles 4321 cooperate to drive the driving mechanism 42 to drive the connecting seat 411 to step along the first direction.

[0062] The encoder 432 and the connecting seat 411 are linked and move synchronously. The encoder 432 extends in the left-right direction and is equipped with multiple stepping baffles 4321 spaced apart in the left-right direction. The number of stepping baffles 4321 corresponds to the number of sample cups 201. The monitoring optocoupler 431 is installed and fixed by connecting to the main body 10. The monitoring optocoupler 431 cooperates with the stepping baffles 4321 to drive the driving mechanism 42 to drive the connecting seat 411 to move stepwise in the left-right direction. Specifically, when the stepping baffle 4321 is at the position of the monitoring optocoupler 431, the connecting seat 411 and the stop block 412 stop for a preset time. During the preset time, the sampling device samples the sample cup 201 at the sampling position. After the preset time, the encoder 432 and the connecting seat 411 continue to move in the left-right direction until the next stepping baffle 4321 is at the position of the monitoring optocoupler 431, and the next sample cup 201 is sampled.

[0063] In addition, the present invention also provides a sample analyzer, characterized in that the sample analyzer includes a sample rack 200 and a continuous feed rack device 100 as described above. The specific structure of the continuous feed rack device 100 is as described in the above embodiments. Since the sample analyzer adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0064] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A continuous sample feeding device, the continuous sample feeding device being used for testing a sample rack, wherein a plurality of sample cups are spaced apart on the sample rack; characterized in that, The continuous feeding device includes: The main body includes a driving structure and a track channel extending along a first direction. The driving structure is used to drive the sample holder to move within the track channel. The track channel includes a pre-storage area, a test area, a test area, and a tested area that are connected in sequence. A pre-stored retaining structure is connected to the main body and is disposed at the connection between the pre-stored area and the area to be inspected. The pre-stored retaining structure can move between a first position and a second position. When the pre-stored retaining structure is in the first position, it connects the pre-stored area and the area to be inspected. When the pre-stored retaining structure is in the second position, it separates the pre-stored area and the area to be inspected. A blocking structure includes a mounting shaft and a detection position baffle and a test position baffle spaced apart on the mounting shaft. The mounting shaft extends along a first direction. The test position baffle is disposed between the test area and the test area, and the test position baffle rotates to connect or separate the test area and the test area. The detection position baffle is disposed between the test area and the tested area, and the detection position baffle rotates to connect or separate the test area and the tested area. When the detection position baffle stops the sample holder, the sample cup on the sample holder near the tested area is in the detection position. A stepping structure is provided to stop the sample holder, and the stepping structure moves stepwise along the first direction so that the plurality of sample cups on the sample holder pass through the detection position in sequence; The distance between two adjacent sample cups on the sample holder is defined as D1, and the distance between the detection baffle and the test baffle is defined as D2; wherein, 2D1 < D2 < 3D1.

2. The continuous feeding rack device as described in claim 1, characterized in that, The continuous feeding device further includes a drive assembly, which includes a drive motor, a mounting plate, and a transmission structure. The drive motor is detachably connected to the mounting plate via a locking member. The output end of the drive motor passes through the mounting plate and is connected to the mounting shaft via the transmission structure.

3. The continuous feeding rack device as described in claim 2, characterized in that, The transmission structure includes a driven wheel and a synchronous belt. One end of the driven wheel is rotatably connected to the mounting plate, and the other end of the driven wheel is connected to the mounting shaft. The synchronous belt is wrapped around the driven wheel and the output end of the drive motor to drive the mounting shaft to rotate.

4. The continuous feeding rack device as described in claim 2, characterized in that, The continuous feeding device further includes a positioning structure, which includes a positioning optocoupler, a connecting plate, and a first sensing plate. The connecting plate is connected to the mounting plate, the positioning optocoupler is connected to the connecting plate, and the first sensing plate is connected to the output end of the drive motor. The positioning optocoupler has a first sensing groove through which the first sensing plate passes.

5. The continuous feeding rack device as described in claim 4, characterized in that, The angle between the detection position baffle and the test position baffle is 120°; the first sensing plate is fan-shaped and the central angle of the first sensing plate is 120°; when the first sensing plate enters the first sensing slot, the detection position baffle extends into the track channel to stop the sample holder.

6. The continuous feeding rack device as described in any one of claims 1 to 5, characterized in that, The pre-stored blocking structure includes a driving member and a blocking rod. The blocking rod is connected to the output end of the driving member. The driving member rotates to drive the blocking rod to rotate between the first position and the second position so that the blocking rod connects or separates the pre-stored area and the area to be inspected.

7. The continuous feeding rack device as described in claim 6, characterized in that, The pre-stored plug structure also includes a pre-stored positioning component, which includes a fixed plate and a pre-stored optocoupler. The fixed plate is connected to the driving component, the pre-stored optocoupler is connected to the fixed plate, the plug rod is connected to a second sensing plate, and the pre-stored optocoupler forms a second sensing groove through which the second sensing plate passes.

8. The continuous feeding rack device as described in any one of claims 1 to 5, characterized in that, The main body is provided with a baffle plate, which is disposed within the track channel. The stepping structure includes a stop mechanism and a drive mechanism. The stop mechanism includes a connecting seat and a stop block. The stop block is rotatably connected to the connecting seat and rotates between an extended position and a retracted position. When the stop block is in the extended position, a portion of the stop block is exposed in the track channel to stop the sample holder. When the stop block is in the retracted position, the stop block disengages from the sample holder. The stop block abuts against the baffle plate to push the stop block to rotate from the extended position to the retracted position. The drive mechanism is connected to the main body, and the output end of the drive mechanism is connected to the connecting seat. The drive mechanism drives the connecting seat to step along the first direction.

9. The continuous feeding rack device as described in claim 8, characterized in that, The stepping structure further includes a monitoring mechanism, which includes a monitoring optocoupler and a code disk. The code disk is linked to the connecting seat and is provided with multiple stepping baffles. The number of stepping baffles is consistent with the number of sample cups on the sample holder and they are arranged in a one-to-one correspondence. The monitoring optocoupler is connected to the main body, and the monitoring optocoupler cooperates with the stepping baffles to enable the driving mechanism to drive the connecting seat to step along the first direction.

10. A sample analyzer, characterized in that, The sample analyzer includes the continuous feeding rack device as described in any one of claims 1 to 9.

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