Sample rack transport device and sample analyzer

Abstract

The application discloses a sample rack transportation device and a sample analyzer. The sample rack transportation device comprises a main body, a continuous rack supply mechanism, a stepping detection assembly and a track changing mechanism. The main body comprises an emergency passage, a regular passage and a recovery passage which are arranged at intervals. The emergency passage comprises an emergency detection position. The regular passage comprises a detection area, a regular detection area and a detected area which are sequentially connected. The continuous rack supply mechanism comprises detection position baffles and detection area baffles which are arranged at intervals. The detection area baffles are used to connect or separate the detection area and the regular detection area. The detection position baffles are used to connect or separate the regular detection area and the detected area. The stepping detection assembly comprises first and second stepping pieces. The first stepping piece is used to stop the sample rack on the emergency passage. The second stepping piece is used to stop the sample rack reaching the detected area. The track changing mechanism is arranged outside the outlet ends of the emergency passage and the regular passage. The sample rack transportation device has the advantages of high sample rack switching speed and high detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of sample analyzer technology, and in particular to a sample rack transport device and a sample analyzer. Background Technology

[0002] To meet the requirements of automated analysis, sample delivery devices are widely used in precision instruments such as biochemical analyzers, chemiluminescence analyzers, urine analyzers, and cell analyzers, as well as in laboratory automated analysis systems.

[0003] Existing sample rack transportation systems, in order to ensure the automatic and continuous transport of sample racks, are equipped with transport and recovery channels and auxiliary mechanisms to achieve smooth and automated transport and testing of sample racks. When testing samples, a large number of samples need to be tested quickly, while urgent testing needs to be prioritized. If regular samples are being tested at the same testing area during an urgent testing period, the urgent testing can only proceed after the regular sample racks have finished testing or been removed, thus affecting overall testing efficiency. During high-volume testing, to ensure efficient and continuous sample delivery from multiple racks, a pre-storage mechanism is usually added before the testing area. When the sample racks in the testing area are completed, the pre-storage racks are transported to the testing area, ensuring the continuity of sample rack supply. With the development of modern instruments, the demand for testing speed is gradually increasing. In existing technologies, the distance between the pre-storage area and the testing area is the length of a sample rack, which is relatively long, resulting in slow sample rack switching efficiency and failing to meet the sample supply speed requirements.

[0004] Therefore, it is necessary to provide a new sample rack transport device and sample analyzer to solve or at least alleviate the above-mentioned technical defects. Summary of the Invention

[0005] The main objective of this invention is to provide a sample rack transport device and a sample analyzer, which aims to solve the problems of slow sample rack switching efficiency and low detection efficiency in the prior art.

[0006] To achieve the above objectives, according to one aspect of the present invention, a sample rack transport device is provided for transporting sample racks, wherein a plurality of sample cups are spaced apart on the sample racks. The sample rack transport device includes:

[0007] The main body includes an emergency channel, a regular channel, and a recycling channel arranged at intervals. The emergency channel includes an emergency detection position, and the regular channel includes a waiting area, a regular detection area, and an inspected area connected in sequence.

[0008] A continuous feeding mechanism includes a detection position baffle and a test position baffle arranged at intervals. The test position baffle is used to connect or separate the test area and the regular detection area. The detection position baffle is used to connect or separate the regular detection area and the tested area. When the detection position baffle stops the sample rack, the sample cup on the sample rack near the tested area is in the regular detection position.

[0009] The stepping detection assembly includes a first stepping component and a second stepping component. The first stepping component is used to stop the sample rack on the emergency channel. The first stepping component moves stepping along the running direction of the emergency channel so that multiple sample cups on the sample rack sequentially stop at the emergency detection position. The second stepping component is used to stop the sample rack that has reached the inspected area. The second stepping component moves stepping along the running direction of the regular channel so that multiple sample cups on the sample rack sequentially stop at the regular detection position.

[0010] A track-changing mechanism is provided outside the exit ends of the emergency passage and the regular passage. The track-changing mechanism is used to receive the sample rack from the regular passage or the emergency passage and transport the sample rack to the recycling passage.

[0011] In one embodiment, the sample rack transport device further includes a push mechanism disposed at the outlet end of the recycling channel. The push mechanism includes a push motor, a push slide rail, a push seat, and a push rod. The push seat is slidably connected to the push slide rail. The push slide rail is installed on the main body and extends along the running direction of the recycling channel. The push motor is used to drive the push seat to move relative to the push slide rail. The push rod is telescopically connected to the push seat. The push rod is used to extend into the recycling channel, abut against the sample rack, and push it away from the recycling channel.

[0012] In one embodiment, the track-changing mechanism includes a base, a track-changing drive, and a slide slidably connected to the base. The output end of the track-changing drive is connected to the slide. A track-changing channel is formed on the slide. The track-changing channel is connected to the regular channel or the emergency channel to receive the sample rack. The track-changing channel is connected to the recovery channel to transport the sample rack.

[0013] In one embodiment, the track-changing drive includes a track-changing motor, a track-changing driven wheel, and a track-changing timing belt. The track-changing motor is mounted on the base, the driven wheel is rotatably connected to the base, and the track-changing timing belt is wound around the driven wheel and the output end of the track-changing motor. The track-changing timing belt is connected to the carriage.

[0014] In one embodiment, the first stepper includes a stop sub-component and a drive sub-component. The stop sub-component 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 protrudes from the emergency passage to stop the sample holder. When the stop block is in the retracted position, the stop block disengages from the sample holder. The drive sub-component is mounted on the main body, and its output end is connected to the connecting seat. The drive sub-component is used to drive the connecting seat to move stepwise along the running direction of the emergency passage.

[0015] In one embodiment, the continuous feeding mechanism further includes a mounting shaft and a pre-stored drive assembly. The detection position baffle and the position baffle to be inspected are both mounted on the mounting shaft. The pre-stored drive assembly includes a pre-stored drive component, a mounting plate, and a transmission structure. The pre-stored drive component is detachably connected to the mounting plate via a locking component. The output end of the pre-stored drive component passes through the mounting plate, and the output end of the pre-stored drive component is connected to the mounting shaft via the transmission structure.

[0016] In one embodiment, the transmission structure includes a pre-stored driven wheel and a pre-stored synchronous belt. The pre-stored driven wheel is rotatably connected to the mounting plate. The pre-stored synchronous belt is wound around the output end of the pre-stored driven wheel and the pre-stored driving member. The mounting shaft is connected to the pre-stored driven wheel.

[0017] In one embodiment, the angle between the detection baffle and the baffle to be detected is 120°.

[0018] In one embodiment, the sample rack transport device further includes a first stop, which is disposed on one side of the front end of the inspection area and is rotatably extended into the conventional channel to block uninspected sample racks; and / or,

[0019] The sample rack transport device further includes a second stop, which is disposed on one side of the rear end of the inspected area. The second stop rotatably extends into the conventional channel to block the inspected sample rack; and / or,

[0020] The sample rack transport device further includes a third stop, which is disposed on one side of the recycling channel and can be rotatably extended into the recycling channel to block the sample rack.

[0021] In one embodiment, the sample rack transport device further includes a detection optical coupler for detecting the position of the sample rack. The number of detection optical couplers is multiple, and the multiple detection optical couplers are respectively disposed in the emergency channel, the regular channel, the recycling channel and the track changing mechanism.

[0022] According to another aspect of the present invention, the present invention also provides a sample analyzer, the sample analyzer including the sample rack transport device as described above.

[0023] In this invention, the first and second stepping components are used to stop the sample racks located in the emergency channel and the regular channel, respectively. Both sets of stepping components move in a left-right direction, causing the sample racks to also move in steps. This allows multiple sample cups on the sample racks to be tested sequentially at either the emergency testing position or the regular testing position. When there is an emergency testing requirement, the sample rack requiring emergency testing is placed in the emergency channel and can be promptly sent to the emergency sampling area for testing. Emergency testing transportation and regular testing transportation are independent of each other, improving the efficiency of emergency testing, reflecting the priority of emergency testing, and eliminating the clinical need to wait for the sample racks in the regular testing to complete their testing. The sample racks in the emergency channel or the regular channel are retrieved through a track-changing mechanism and a retrieval channel, completing the entire sample delivery, testing, and retrieval process.

[0024] The standard channel includes the waiting area, the standard testing area, and the tested area, which are connected from left to right. Taking a sample rack with ten sample cups as an example, the sample cups on the sample rack from right to left are the first sample cup, the second sample cup, and so on up to the tenth sample cup. At the start of testing, the checkpoint baffle is closed, connecting the checkpoint area and the regular testing area. The detection baffle opens, separating the regular testing area from the inspected area. The previous sample rack first passes through the checkpoint baffle and is blocked at the detection baffle. At this point, sampling can begin on the first sample cup in the regular testing position. After sampling, the detection baffle closes, and the sample rack moves along the regular channel to the second stepper where it is stopped. At this point, the first sample cup is in the inspected area, and the second sample cup is in the regular testing position, where sampling begins… As the second stepper moves, when the tenth sample cup passes through the checkpoint baffle, the checkpoint baffle opens, blocking the next sample rack. The tenth sample cup on the current sample rack is tested, and the previous sample rack fully enters the inspected area. The second stepper no longer blocks the previous sample rack. At this point, the checkpoint baffle closes, and the detection baffle… The baffle reopens, the next sample rack enters the detection area and is stopped by the detection position baffle. The first sample cup on the next sample rack is located at the detection position. The detection position baffle is mainly used to stop the next sample rack during the reset time of the second stepper, and can also perform sampling on the first sample cup. After the first sample cup is sampled, the second stepper moves to the left and returns to the initial position. The detection position baffle closes, and the next sample rack moves to be stopped by the second stepper and moves with the second stepper. By repeating the above process, continuous sampling of multiple sample racks can be achieved, shortening the interval time. By setting up a continuous rack supply mechanism, the next sample rack can enter the detection area for sampling after the previous sample rack has completed the detection of the tenth sample, realizing rapid switching of sample racks, compressing the sample rack switching supply time, and thus achieving the goal of faster and more reliable sample supply. This invention achieves continuous and efficient transport and testing of sample racks through the movement flow layout of the sample rack transport device, the coordination between blocking, releasing, and track-changing mechanisms, and solves the problem of high-speed and reliable continuous sample supply without time difference. It has the advantages of fast sample rack switching speed and high testing efficiency. Attached Figure Description

[0025] 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.

[0026] Figure 1 This is a schematic diagram of the structure of a sample rack transport device according to an embodiment of the present invention;

[0027] Figure 2 This is a partial three-dimensional structural schematic diagram of a sample rack transport device according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of a partial detection structure of a sample rack transport device according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the mounting shaft in a first state according to an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the mounting shaft in a second state according to an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the mounting shaft in a third state according to an embodiment of the present invention;

[0032] Figure 7 This is a three-dimensional structural diagram of a push-back mechanism according to an embodiment of the present invention;

[0033] Figure 8 This is a three-dimensional structural diagram of a track-changing mechanism according to an embodiment of the present invention;

[0034] Figure 9 This is a three-dimensional structural diagram of the first stepper in an embodiment of the present invention;

[0035] Figure 10 This is a three-dimensional structural diagram of a continuous feeding rack mechanism according to an embodiment of the present invention;

[0036] Figure 11 This is a three-dimensional structural diagram of the first insert member according to an embodiment of the present invention.

[0037] Explanation of icon numbers:

[0038]

[0039] 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

[0040] 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 them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] 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.

[0042] 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, "multiple" means at least two groups, such as two groups, three, etc., unless otherwise explicitly specified.

[0043] 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 sets of components or the interaction between two sets of 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.

[0044] 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.

[0045] Please refer to Figures 1-6 According to one aspect of the present invention, a sample rack transport device 100 is provided for transporting sample racks 110, wherein a plurality of sample cups 120 are spaced apart on the sample racks 110. The sample rack transport device 100 includes:

[0046] Main body 1 includes an emergency channel 11, a regular channel 12 and a recycling channel 13 arranged at intervals. The emergency channel 11 includes an emergency detection position 111. The regular channel 12 includes a waiting area 121, a regular detection area 122 and an inspected area 123 connected in sequence.

[0047] The continuous feeding mechanism 2 includes a detection position baffle 21 and a test position baffle 22 arranged at intervals. The test position baffle 22 is used to connect or separate the test area 121 and the regular detection area 122. The detection position baffle 21 is used to connect or separate the regular detection area 122 and the inspected area 123. When the detection position baffle 21 stops the sample rack 110, the sample cup 120 on the sample rack 110 near the inspected area 123 is in the regular detection position 126.

[0048] The stepping detection assembly includes a first stepping member 31 and a second stepping member 32. The first stepping member 31 is used to stop the sample rack 110 on the emergency channel 11. The first stepping member 31 moves stepping along the running direction of the emergency channel 11 so that the multiple sample cups 120 on the sample rack 110 sequentially stop at the emergency detection position 111. The second stepping member 32 is used to stop the sample rack 110 that has reached the inspected area 123. The second stepping member 32 moves stepping along the running direction of the regular channel 12 so that the multiple sample cups 120 on the sample rack 110 sequentially stop at the regular detection position 126.

[0049] The track-changing mechanism 4 is located outside the exit end of the emergency channel 11 and the normal channel 12. The track-changing mechanism 4 is used to receive the sample rack 110 from the normal channel 12 or the emergency channel 11 and transport the sample rack 110 to the recycling channel 13.

[0050] In the above embodiments, the sample rack 110 travels in the emergency passage 11 or the regular passage 12 in the following direction: Figure 1 From left to right, the sample rack 110 travels in the recovery channel 13 in the following direction: Figure 1 From right to left, the sample rack 110 extends in the left-right direction, and multiple sample cups 120 are spaced apart on the sample rack 110 in the left-right direction. All three channels extend in the left-right direction. The first stepper 31 and the second stepper 32 are used to stop the sample racks 110 located on the emergency channel 11 and the regular channel 12, respectively. Both sets of steppers move in the left and right directions, so that the sample racks 110 also move in steps. This allows multiple sample cups 120 on the sample racks 110 to stop in the emergency testing position 111 or the regular testing position 126 for testing in sequence. When there is an emergency testing need, the sample racks 110 that need emergency testing are put into the emergency channel 11 and can enter the emergency sampling area for testing in a timely manner. The emergency testing transportation and the regular testing transportation are independent of each other, which improves the efficiency of emergency testing, reflects the priority of emergency testing, and does not require waiting for the sample racks 110 in the regular testing to complete the clinical needs. The sample racks 110 on the emergency channel 11 or the sample racks 110 on the regular channel 12 are retrieved through the track changing mechanism 4 and the retrieval channel 13, respectively, completing the entire sample delivery, testing, and retrieval process.

[0051] The standard channel 12 includes, from left to right, a waiting area 121, a standard testing area 122, and a tested area 123. Taking a sample rack 110 with ten sample cups 120 as an example, the sample cups 120 on the sample rack 110, from right to left, are the first sample cup 120, the second sample cup 120, ..., the tenth sample cup 120. Please refer to the reference. Figures 2-6When the test begins, the test position baffle 22 is closed, connecting the test area 121 and the regular test area 122; the test position baffle 21 is opened, separating the regular test area 122 and the tested area 123; the previous sample rack 110 first passes through the test position baffle 22 to reach the test position baffle 21 where it is blocked. At this time, sampling can be performed on the first sample cup 120 in the regular test position 126. After sampling is completed, the test position baffle 21 is closed, and the sample rack 110 is moved along the regular channel 12 to the second stepper 32 where it is stopped. The first sample cup 120 is in the inspected area 123, and the second sample cup 120 is in the regular inspection position 126. Sampling is then performed on the second sample cup 120… As the second stepper 32 moves forward, when the tenth sample cup 120 passes the inspection position baffle 22, the inspection position baffle 22 opens to block the previous sample rack 110. The inspection of the tenth sample cup 120 on the previous sample rack 110 is completed, and the previous sample rack 110 fully enters the inspected area 123. The second stepper 32 no longer blocks the previous sample rack 110. At this time, the inspection position baffle 22 closes while the detection position baffle 21 reopens. The next sample holder 110 enters the inspection area and is stopped by the detection position baffle 21. The first sample cup 120 on the next sample holder 110 is located at the inspection position. The detection position baffle 21 is mainly used to stop the next sample holder 110 during the reset time of the second stepper 32, and can also perform sampling on the first sample cup 120. After the first sample cup 120 is sampled, the second stepper 32 moves to the left and returns to its initial position. When step 21 is closed, the next sample rack 110 moves to be stopped by the second stepper 32 and moves step by step with the second stepper 32; repeating the above process, continuous sampling of multiple sample racks 110 can be achieved, shortening the interval time. By setting up the continuous supply mechanism 2, after the previous sample rack 110 has tested the tenth sample, the next sample rack 110 can enter the testing area for sampling, realizing rapid switching of sample racks 110 and compressing the switching supply time of sample racks 110, thereby achieving the purpose of faster and more reliable sample supply. This embodiment, through the motion flow layout of the sample rack transport device 100, the blocking, releasing, and the cooperation before the track changing mechanism 4, realizes the continuous and efficient transport and testing of sample racks 110, solves the problem of high-speed and reliable continuous sample supply without time difference, and has the advantages of fast sample rack 110 switching speed and high testing efficiency.It should be noted that the working principle of the first step feeder 31 can be the same as that of the second step feeder 32. Alternatively, a pre-storage mechanism can be set at the front end of the first step feeder 31 to achieve uninterrupted continuous sample supply to the sample rack 110. Or, a pre-storage mechanism can be omitted. The difference is that the sample rack 110 is only in the emergency detection position 111 when it is stopped by the first step feeder 31. Subsequently, the first step feeder 31 moves step by step to stop the sample cups 120 on the sample rack 110 in sequence at the emergency detection position 111. The emergency channel 11, the regular channel 12, and the recovery channel 13 can all be driven by a motor and a conveyor belt. The motor drives the conveyor belt to provide power to the sample rack 110 placed on the conveyor belt.

[0052] In one embodiment, reference is made to Figure 1 and Figure 7 The sample rack transport device 100 also includes a push mechanism 5 located at the outlet end of the recycling channel 13. The push mechanism 5 includes a push motor 51, a push slide rail 52, a push seat 53, and a push rod 54. The push seat 53 is slidably connected to the push slide rail 52. The push slide rail 52 is installed on the main body 1 and extends along the running direction of the recycling channel 13. The push motor 51 is used to drive the push seat 53 to move relative to the push slide rail 52. The push rod 54 is telescopically connected to the push seat 53. The push rod 54 is used to extend into the recycling channel 13 to abut against the sample rack 110 and push it away from the recycling channel 13. The push mechanism 5 is used to push the sample rack 110, after sampling, from the recovery channel 13 to the receiving device. The push rod 54 has two states: extended and retracted. In the retracted state, it will not interfere with the sample rack 110 in the recovery channel 13. When the sample rack 110 is transported to the exit end of the recovery channel 13, the push rod 54 extends, and the push motor 51 drives the push seat 53 to move to the left on the push slide rail 52, thereby causing the push rod 54 to abut against the sample rack 110 and push the sample rack 110 from the recovery channel 13 to the receiving device. After completion, the push mechanism 5 resets to prepare for the next push operation. The push rod 54 is elongated to facilitate completely pushing the sample rack 110 away from the recovery channel 13.

[0053] In one embodiment, reference is made to Figure 1 and Figure 8The track-changing mechanism 4 includes a base 41, a track-changing drive 42, and a carriage 43 slidably connected to the base 41. The output end of the track-changing drive 42 is connected to the carriage 43. A track-changing channel 431 is formed on the carriage 43. The track-changing channel 431 is connected to the regular channel 12 or the emergency channel 11 to receive the sample rack 110, and the track-changing channel 431 is connected to the recovery channel 13 to transport the sample rack 110. The track-changing drive 42 is used to drive the carriage 43 to move on the base 41, so that the track-changing channel 431 is connected to the regular channel 12, the emergency channel 11, or the recovery channel 13 respectively, thereby receiving or transporting the sample rack 110. Accordingly, the carriage 43 may also be equipped with a motor capable of rotating in both directions, and a conveyor belt connected to the motor to transport the sample rack 110. In routine testing, when the sample volume is large, during the process of retrieving the completed sample rack 110, the track-changing mechanism 4 not only changes the sample rack 110 to different channels, but also pre-stores the sample rack 110 to be retrieved on the track-changing mechanism 4 before the push-back mechanism 5 completes the push-back action of the previous sample rack 110, thus achieving temporary pre-storage. Specifically, the track-changing drive component 42 includes a track-changing motor 421, a track-changing driven wheel 422, and a track-changing synchronous belt 423. The track-changing motor 421 is mounted on the base 41, the driven wheel is rotatably connected to the base 41, and the track-changing synchronous belt 423 is wrapped around the output end of the track-changing driven wheel 422 and the track-changing motor 421, and the track-changing synchronous belt 423 is connected to the carriage 43.

[0054] In one embodiment, reference is made to Figure 9The first stepper 31 includes a stop sub-component 311 and a drive sub-component 312. The stop sub-component 311 includes a connecting seat 3111 and a stop block 3112. The stop block 3112 is rotatably connected to the connecting seat 3111 and rotates between an extended position and a retracted position. When the stop block 3112 is in the extended position, part of the stop block 3112 is exposed in the emergency passage 11 to stop the sample holder 110. When the stop block 3112 is in the retracted position, the stop block 3112 is disengaged from the sample holder 110. The drive sub-component 312 is installed on the main body 1, and its output end is connected to the connecting seat 3111. The drive sub-component 312 is used to drive the connecting seat 3111 to move stepwise along the running direction of the emergency passage 11. The stop block 3112 has two states: an extended position and a retracted position. The drive sub-component 312 serves as a power source, driving the connecting seat 3111 to move left and right. During testing, the drive component 312 drives the connecting seat 3111 and the stop block 3112 to move to the right. The stop block 3112 is in the extended position, partially exposed in the emergency passage 11. The sample holder 110 is stopped by the stop block 3112 and moves synchronously with it, enabling step-by-step testing of multiple sample cups 120 on the sample holder 110. When all sample cups 120 on the sample holder 110 have been tested, the stop block 3112 rotates back to the retracted position, disengaging from the sample holder 110 and allowing the sample holder 110 to proceed to the next step. A baffle 33 can be provided in the direction of the stop block 3112's stepping movement, such as... Figure 3 As shown, after all sample cups 120 have been tested, the stop block 3112 abuts against the baffle 33. The baffle 33 pushes the stop block 3112 to rotate relative to the connecting seat 3111, and the stop block 3112 rotates from the extended position to the retracted position. Then, the drive component 312 drives the connecting seat 3111 and the stop block 3112 to move to the left to the initial position. After the stop block 3112 separates from the baffle 33, the stop block 3112 returns to the extended position and stops the next sample rack 110, realizing the step-by-step testing of multiple sample cups 120 on the next sample rack 110. By cooperating with the baffle 33, the stop block 3112 can rotate between the extended and retracted positions, thereby stopping or releasing the sample rack 110. Compared with the forward and backward extension to perform the blocking and releasing functions, it occupies less space in the left and right directions, and the structure is simple, reliable and space-saving.

[0055] In one embodiment, reference is made to Figure 10The continuous feeding mechanism 2 also includes a mounting shaft 23 and a pre-stored drive assembly 24. The detection position baffle 21 and the baffle to be inspected 22 are both mounted on the mounting shaft 23. The pre-stored drive assembly 24 includes a pre-stored drive component 241, a mounting plate 242, and a transmission structure 243. The pre-stored drive component 241 is detachably connected to the mounting plate 242 via a locking component 244. The output end of the pre-stored drive component 241 passes through the mounting plate 242 and is connected to the mounting shaft 23 via the transmission structure 243. The mounting shaft 23 extends in the left-right direction and is used to mount and fix the detection position baffle 21 and the baffle to be inspected 22. Rotation of the mounting shaft 23 drives the detection position baffle 21 and the baffle to be inspected 22 to rotate. The rotation of the mounting shaft 23 has three states: a first state, a second state, and a third state. In the first state, as... Figure 4 As shown, the inspection position baffle 22 rotates to the open position to separate the inspection area 121 and the regular inspection area 122, and the inspection position baffle 21 rotates to the closed position to connect the regular inspection area 122 and the inspected area 123; in the second state, as... Figure 5 As shown, when the inspection position baffle 22 is rotated to the closed position, the inspection area 121 and the regular inspection area 122 are connected; when the inspection position baffle 21 is rotated to the open position, the regular inspection area 122 and the inspected area 123 are separated; in the third state, as... Figure 6 As shown, when the inspection position baffle 22 rotates to the closed position, the inspection area 121 and the regular inspection area 122 are connected. When the inspection position baffle 21 rotates to the closed position, the regular inspection area 122 and the inspected area 123 are connected. The mounting shaft 23 is driven to rotate by the pre-stored drive component 24, which switches the mounting shaft 23 between three states. The inspection position baffle 22 and the inspection position baffle 21 are linked to stop or release the sample rack 110, realizing rapid switching of the sample rack 110 and uninterrupted continuous sample feeding, ensuring continuous sample delivery. The structure is simple and compact, and highly practical. The pre-stored drive component 241 serves as a power source, specifically a motor, which has the advantages of stable output and easy installation. The pre-stored drive component 241 is detachably connected to the mounting plate 242 through a locking component 244, specifically a bolt, which has the advantages of easy material availability and convenient installation. Furthermore, the pre-stored drive component 241 and the mounting plate 242 are detachably connected, facilitating replacement of the drive motor after wear and improving the flexibility of its use. The output end of the pre-stored drive component 241 is connected to the mounting shaft 23 via a transmission structure 243, and the rotation of the pre-stored drive component 241 drives the mounting shaft 23 to rotate. Specifically, the angle between the detection position baffle 21 and the test position baffle 22 is 120°, and the mounting shaft 23 rotates 120° each time, which realizes the switching between the first state, the second state, and the third state, making control convenient and less prone to errors.

[0056] It should be noted that the distance between the detection position baffle 21 and the pre-stored position baffle is adapted to the distance between the sample cups 120 on the sample holder 110. Specifically, the distance between two adjacent sample cups 120 on the sample holder 110 is defined as D1, and the distance between the detection position baffle 21 and the test position baffle 22 is defined as D2; where 2D1 < D2 < 3D1. When the ninth sample cup 120 on the current sample holder 110 is in the detection position for detection, the next sample holder 110 enters the test area 121, the mounting shaft 23 rotates to the first state, and the test position baffle 22 separates the test area 121 from the regular detection area 122, that is, the next sample holder 110 is stopped by the test position baffle 22. If D2 < 2D1, the test position baffle 22 will interfere with the previous sample holder 110, causing damage to the previous sample holder 110. If D2 > 3D1, the distance between the test position baffle 22 and the detection position baffle 21 is too long, reducing the switching efficiency of the sample rack 110. During routine testing, after the current sample rack 110 completes the testing of the tenth sample cup 120, as the sample rack 110 is transported to the tested area 123, the second stepper 32 resets, the continuous feeding mechanism 2 closes the test position baffle 22 to release the sample rack 110, and at the same time, the detection position baffle 21 opens to block the next sample rack 110, thus entering the sample testing process of the next sample rack 110. The interval between these two actions is less than the sampling interval of two sample cups 120, and D2 must satisfy that the time for the sample rack 110 to move from the test position baffle 22 to the detection position baffle 21 is not greater than the sampling time of two samples. This ensures that when switching between sample racks 110, the samples are continuously and stably fed, and the testing is carried out in a continuous cycle.

[0057] In one embodiment, reference is made to Figure 10 The transmission structure 243 includes a pre-stored driven wheel 2431 and a pre-stored synchronous belt 2432. The pre-stored driven wheel 2431 is rotatably connected to the mounting plate 242, and the mounting shaft 23 is connected to the pre-stored driven wheel 2431. The pre-stored synchronous belt 2432 is wound around the output end of the pre-stored driven wheel 2431 and the pre-stored driving member 241 to drive the mounting shaft 23 to rotate. The pre-stored synchronous belt 2432 extends vertically. The transmission structure 243 is connected to the mounting shaft 23 by setting the pre-stored driven wheel 2431. The rotation of the pre-stored driving member 241 drives the pre-stored synchronous belt 2432 to rotate, which in turn drives the pre-stored driven wheel 2431 to rotate, and the pre-stored driven wheel 2431 drives the mounting shaft 23 to rotate.

[0058] In one embodiment, reference is made to Figure 1 and Figure 11The sample rack transport device 100 also includes a first stop 6, which is disposed on one side of the front end of the inspection area 121. The first stop 6 is rotatably extended into the conventional channel 12 to block untested sample racks 110. The first stop 6 is used to prevent the following sample rack 110 from being separated from the sample rack 110 that has arrived at the inspection area 121, so as to avoid the following sample rack 110 interfering with the inspection of the preceding sample rack 110. When the ninth sample cup 120 on the preceding sample rack 110 is in the conventional inspection position 126 for inspection, the first stop 6 rotates to the closed position, the following sample rack 110 enters the inspection area 121, the mounting shaft 23 rotates to the first state, the inspection position baffle 22 rotates to separate the inspection area 121 and the inspection area, and after the following sample rack 110 passes, the first stop 6 rotates back to the open position to stop the following sample rack 110. Specifically, the first blocking component 6 includes a blocking drive component 61 and a blocking rod 62. The blocking rod 62 is connected to the output end of the blocking drive component 61. The rotation of the blocking drive component 61 drives the blocking rod 62 to rotate between a first position and a second position to open or close the conventional channel 12. The blocking drive component 61 provides power and can be a motor, which has the advantages of stable output and convenient installation. The rotation of the motor drives the blocking rod 62 to rotate between the first position and the second position, thereby realizing the pre-storage or release of the first blocking component 6. In other embodiments, the blocking drive component 61 can drive the blocking rod 62 to move in the front-back direction between the first position and the second position to connect or separate the waiting area and the conventional sampling area. The movement of the blocking rod 62 can be flexibly adjusted as needed, and the present invention does not limit the movement of the blocking rod 62.

[0059] Similarly, the sample rack transport device 100 also includes a second stop 7, which is located on one side of the rear end of the inspected area 123. The second stop 7 is rotatably extended into the conventional channel 12 to block the inspected sample rack 110. The sample rack transport device 100 also includes a third stop 8, which is located on one side of the recovery channel 13 and is rotatably extended into the recovery channel 13 to block the sample rack 110. The second stop 7 is used to prevent the subsequent sample rack 110 arriving at the inspection area from interfering with the previous sample rack 110 being transported by the track-changing mechanism 4. When the previous sample rack 110 is transported to the recovery channel 13 by the track-changing mechanism 4, the second stop 7 closes, and the subsequent sample rack 110 can then be transported to the track-changing mechanism 4. The third stopper 8 is located at the front end of the push mechanism 5 to prevent the subsequent sample rack 110 on the recycling channel 13 from interfering with the previous sample rack 110 being pushed by the push mechanism 5. After the previous sample rack 110 is pushed to the receiving device by the push mechanism 5, the third stopper 8 closes, and the subsequent sample rack 110 can be transported to the side of the push mechanism 5. By arranging pre-stored stopper structures at the front end of the conventional channel 12, the rear end of the conventional channel 12, and the recycling channel 13, the function of blocking the sample rack 110 is achieved. In conjunction with the detection mechanism, the track changing mechanism 4, and the push mechanism 5, the sample rack 110 can be prevented from crowding and blocking in the channel, thus achieving efficient flow and transportation of the sample rack 110.

[0060] In one embodiment, the sample rack transport device 100 further includes a detection optical coupler for detecting the position of the sample rack 110. The number of detection optical couplers is multiple, and they are respectively disposed in the emergency passage 11, the regular passage 12, the recovery passage 13, and the track-changing mechanism 4. Specifically, the detection optical coupler includes a first positioning optical coupler 91 and a second positioning optical coupler 92. The first positioning optical coupler 91 is disposed on one side of the emergency passage 11, and the second positioning optical coupler 92 is disposed on one side of the regular passage 12. The detection optocoupler is used to transmit the signal of the position reached by the sample rack 110 through electrical signal, so as to realize the judgment of the operation and position of the sample rack 110 in the conveying channel. The first positioning optocoupler 91 is used to determine whether the sample rack 110 has reached the emergency detection position 111, so that the detection mechanism receives the signal to perform sampling operation and the subsequent stepping movement of the first stepper 31. Similarly, the second positioning optocoupler 92 is used to determine whether the sample rack 110 has reached the regular detection area 122, more specifically, whether the sample rack 110 has reached the regular detection position 126, so that the detection mechanism can perform sampling detection operation, and the continuous feeding mechanism 2 and the second stepper 32 can work together to control the continuous feeding of the sample rack 110. The detection optocouplers also include position detection optocouplers for sample rack 110 entering and exiting emergency passage 11, position detection optocouplers for sample rack 110 entering and exiting recovery passage 13, position detection optocouplers for sample rack 110 being transported to a designated position on track changing mechanism 4, position detection optocouplers for sample rack 110 exiting regular passage 12, position detection optocouplers for the entrance of regular passage 12, and pre-stored position detection optocouplers for regular passage 12. The specific installation positions of the above position detection optocouplers are set according to the specific points on the conveying passage, thereby realizing the monitoring of sample rack 110 reaching various positions on the conveying passage. Through the detection and monitoring of the presence or absence of sample rack 110 and the cooperation with other mechanisms of sample rack transport device 100, the blocking, release, and track changing of sample rack 110 are controlled, realizing the smooth and efficient switching of sample rack 110 transport status, and ensuring the smoothness and reliability of sample rack 110 scheduling during continuous testing. For example, when the position judgment optocoupler 93 of the track changing mechanism determines that a sample rack 110 has entered, the track changing motion is started to transport the sample rack 110 to the recycling channel 13, and the recycling channel 13 transports the sample rack 110 back to the front end of the main body 1. When the position judgment optocoupler 94 of the push mechanism detects that a sample rack 110 has arrived at the push mechanism 5, the push operation is started to push the sample rack 110 away from the recycling channel 13 and into the receiving device.

[0061] According to another aspect of the present invention, a sample analyzer is also provided, comprising a sample rack 110 and a sample rack transport device 100 as described above. The specific structure of the sample rack transport device 100 is as described in the above embodiments. Since the sample analyzer adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0062] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A sample rack transport device for transporting a sample rack having a plurality of sample cups spaced thereon, the sample rack transport device comprising: include: The main body includes an emergency channel, a regular channel, and a recycling channel arranged at intervals. The emergency channel includes an emergency detection position, and the regular channel includes a waiting area, a regular detection area, and an inspected area connected in sequence. A continuous feeding mechanism includes a detection position baffle and a test position baffle arranged at intervals. The test position baffle is used to connect or separate the test area and the regular detection area. The detection position baffle is used to connect or separate the regular detection area and the tested area. When the detection position baffle stops the sample rack, the sample cup on the sample rack near the tested area is in the regular detection position. The stepping detection assembly includes a first stepping component and a second stepping component. The first stepping component is used to stop the sample rack on the emergency channel. The first stepping component moves stepping along the running direction of the emergency channel so that multiple sample cups on the sample rack sequentially stop at the emergency detection position. The second stepping component is used to stop the sample rack that has reached the inspected area. The second stepping component moves stepping along the running direction of the regular channel so that multiple sample cups on the sample rack sequentially stop at the regular detection position. A track-changing mechanism is disposed outside the exit end of the emergency passage and the regular passage. The track-changing mechanism is used to receive the sample rack from the regular passage or the emergency passage and transport the sample rack to the recycling passage. The continuous feeding mechanism further includes a mounting shaft and a pre-stored drive assembly. The detection position baffle and the position baffle to be inspected are both mounted on the mounting shaft. The pre-stored drive assembly includes a pre-stored drive component, a mounting plate, and a transmission structure. The pre-stored drive component is detachably connected to the mounting plate through a locking component. The output end of the pre-stored drive component passes through the mounting plate, and the output end of the pre-stored drive component is connected to the mounting shaft through the transmission structure.

2. The sample holder transport apparatus of claim 1, wherein, The sample rack transport device further includes a push mechanism disposed at the outlet end of the recycling channel. The push mechanism includes a push motor, a push slide rail, a push seat, and a push rod. The push seat is slidably connected to the push slide rail. The push slide rail is installed on the main body and extends along the running direction of the recycling channel. The push motor is used to drive the push seat to move relative to the push slide rail. The push rod is telescopically connected to the push seat. The push rod is used to extend into the recycling channel, abut against the sample rack, and push it away from the recycling channel.

3. The sample holder transport apparatus of claim 1, wherein, The track-changing mechanism includes a base, a track-changing drive, and a slide that is slidably connected to the base. The output end of the track-changing drive is connected to the slide. A track-changing channel is formed on the slide. The track-changing channel is connected to the regular channel or the emergency channel to receive the sample rack. The track-changing channel is connected to the recovery channel to transport the sample rack.

4. The sample holder transport apparatus of claim 3, wherein, The track-changing drive unit includes a track-changing motor, a track-changing driven wheel, and a track-changing synchronous belt. The track-changing motor is mounted on the base, the driven wheel is rotatably connected to the base, and the track-changing synchronous belt is wound around the track-changing driven wheel and the output end of the track-changing motor. The track-changing synchronous belt is connected to the carriage.

5. The sample holder transport apparatus of claim 1, wherein, The first step includes a stop sub-component and a drive sub-component. The stop sub-component 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 emergency passage to stop the sample holder. When the stop block is in the retracted position, the stop block is disengaged from the sample holder. The drive component is mounted on the main body, and its output end is connected to the connector. The drive component is used to drive the connector to move stepwise along the running direction of the emergency passage.

6. The sample holder transport device of claim 1, wherein, The transmission structure includes a pre-stored driven wheel and a pre-stored synchronous belt. The pre-stored driven wheel is rotatably connected to the mounting plate. The pre-stored synchronous belt is wound around the output end of the pre-stored driven wheel and the pre-stored driving component. The mounting shaft is connected to the pre-stored driven wheel.

7. The sample holder transport device of claim 1, wherein, The angle between the detection baffle and the baffle to be tested is 120°.

8. The sample holder transport device according to any one of claims 1 to 7, characterized in that The sample rack transport device further includes a first stop, which is disposed on one side of the front end of the inspection area. The first stop rotatably extends into the conventional channel to block uninspected sample racks; and / or, The sample rack transport device further includes a second stop, which is disposed on one side of the rear end of the inspected area. The second stop rotatably extends into the conventional channel to block the inspected sample rack; and / or, The sample rack transport device further includes a third stop, which is disposed on one side of the recycling channel and can be rotatably extended into the recycling channel to block the sample rack.

9. The sample holder transport device according to any one of claims 1 to 7, characterized in that The sample rack transport device also includes a detection optical coupler for detecting the position of the sample rack. There are multiple detection optical couplers, which are respectively disposed in the emergency channel, the regular channel, the recycling channel and the track changing mechanism.

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

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