Test tube detection and recognition device

Abstract

The utility model discloses a test tube detection and identification device which is characterized in that a blood sample is contained in a test tube, the test tube is inserted into a test tube rack, the test tube rack is inserted into a test tube rack loader, and a test tube rack induction window is arranged on the test tube rack loader and is opposite to the test tube rack; hollowed-out detection windows are respectively formed in positions, opposite to the test tube hole sites, on two sides of the test tube rack; the test tube detection and recognition device comprises a door-shaped structure bracket; the test tube detection assembly comprises a first detection unit, and the first detection unit comprises a first reflective sensor, a second reflective sensor, a third reflective sensor and a first photoelectric emitter which are sequentially arranged on one side of the door-shaped structure bracket from top to bottom; and the second detection unit comprises a first photoelectric receiver and a fourth reflection type sensor which are arranged on the other side of the door-shaped structure bracket. The utility model has the advantages of simple structure and high reliability, not only can reduce the cost, but also can save the installation space, and facilitates the miniaturization of instruments.

Description

Technical Field

[0001] The utility model relates to the technical field of in vitro diagnosis, and more specifically, to a test tube detection and identification device. Background Art

[0002] In a fully automatic chemiluminescence immunoassay analyzer, the instrument needs to have a high degree of automation, which requires that the instrument's sampling system needs to be able to automatically sample and identify the test tubes containing the samples. In actual operation, there may be test tubes missing or left empty in the test tube positions on the test tube rack that holds the test tubes. In order to solve the problem of missing test tubes or leaving empty test tubes and selecting the wrong sampling position due to human factors, causing subsequent instrument failures or warnings during the test process and stopping the test, resulting in related test consumables and time consumption. The instrument is required to automatically detect the status of all test tube positions in the test tube rack and identify the type of test tubes placed.

[0003] Among the analyzers currently on the market, the main test tube detection methods are visual detection principle and photoelectric detection principle. Among them, the visual detection principle requires the use of camera shooting and image recognition to perform detection, and its overall cost is relatively high. Among them, the photoelectric detection principle can be further divided into reflection detection method and transmission detection method, each of which has its own advantages and disadvantages. The detection principle of the reflection detection method is to distinguish whether there is an object to be detected by detecting the difference in the amount of reflected light. Its disadvantage is that when the surface of the object to be detected is dark, the light irradiated to the object to be detected is almost completely absorbed, and the amount of light reflected back is very small. The difference between the amount of light reflected back and the amount of light reflected from the background is not large, which can easily cause misidentification. This defect is particularly obvious when the background of the object to be detected is bright or mirrored. The detection principle of the transmission detection method is to use the object to be detected to block the irradiation light path to reduce the amount of light received by the receiving end to distinguish whether there is an object to be detected. Its disadvantage is that when the object to be detected is a nearly transparent object or liquid, it cannot be effectively blocked, and most of the light is still received by the receiving end. Due to the low distinction, it is easy to cause misidentification.

[0004] When the analyzer detects blood samples, the mixing method and sampling height will be different depending on the type of test tube, so the test tube type needs to be identified before the instrument is tested. Currently, analyzers on the market that use the photoelectric detection principle to detect test tubes only use one of the detection methods, which can only detect the presence or absence of test tubes of a specific shape, and cannot detect and identify all types of test tubes. Utility Model Content

[0005] The purpose of the utility model is to provide a test tube detection and identification device, which is based on the principle of photoelectric detection and adopts a detection method combining reflection detection and transmission detection to detect the test tube and identify the type of the test tube. It has a simple structure and high reliability, which can not only reduce costs, but also save installation space and facilitate miniaturization of the instrument.

[0006] In order to achieve these purposes and other advantages of the utility model, a test tube detection and identification device is provided, wherein a blood sample is contained in a test tube, the test tube is inserted into a test tube hole of a test tube rack, the test tube rack is inserted into a test tube rack carrier, the test tube rack carrier performs linear motion under the driving of a power, a test tube rack induction window is provided on the test tube rack carrier, the test tube rack induction window is opposite to the test tube rack; hollow detection windows are respectively provided at positions opposite to each test tube hole on both sides of the test tube rack, and the height of the hollow detection window is higher than the height of the test tube rack carrier; the test tube detection and identification device comprises:

[0007] A mounting bracket, which includes a door-shaped structure bracket, through which the test tube rack carrier can pass under the driving of power;

[0008] A test tube detection assembly comprising:

[0009] A first detection unit, comprising a first reflective sensor, a second reflective sensor, a third reflective sensor and a first photoelectric transmitter, which are sequentially arranged on one side of the door-shaped structure support from top to bottom, wherein the setting height of the first reflective sensor is consistent with the position of the test tube cap at the top of the long test tube placed in the test tube hole, the setting height of the second reflective sensor is consistent with the position of the test tube cap at the top of the short test tube placed in the test tube hole, the setting height of the third reflective sensor is consistent with the height of the middle part of the bullet-shaped test tube placed in the test tube hole, and the height is within the range of the hollow detection window, and the first photoelectric transmitter is close to the third reflective sensor, and the height is within the range of the hollow detection window;

[0010] The second detection unit includes a first photoelectric receiver and a fourth reflective sensor arranged on the other side of the door-shaped structure support, the first photoelectric receiver is opposite to the first photoelectric transmitter, and the fourth reflective sensor can be opposite to the test tube rack sensing window during the movement of the test tube rack.

[0011] Preferably, in the test tube detection and identification device, the test tube rack has a plurality of test tube holes, and the plurality of test tube holes are arranged in sequence along the movement direction of the test tube rack.

[0012] Preferably, the test tube detection and identification device further comprises:

[0013] A sample injection assembly comprising:

[0014] An injection guide rail, which is arranged on a fixed base;

[0015] An injection slide block is slidably arranged on the injection guide rail, and a test tube rack carrier is fixed on the injection slide block; a driving motor is arranged at one end of a fixed base;

[0016] A first driving pulley connected to an output end of the driving motor;

[0017] a first driven pulley rotatably disposed at the other end of the fixed base;

[0018] A first driving belt, which is arranged on the first driving pulley and the first driven pulley;

[0019] The card plate has one end clamped on the first driving belt and the other end connected to the side wall of the test tube rack carrier; when the driving motor drives the first active pulley to rotate, the first driving belt can drive the card plate to make a linear motion, and then the card plate drives the test tube rack carrier to make a linear motion.

[0020] Preferably, in the test tube detection and identification device, the mounting bracket further comprises a side bracket, the side bracket is located at one side of the test tube rack carrier, and a code scanning slot is provided on the side bracket;

[0021] The test tube detection assembly also includes:

[0022] The test tube barcode scanner is fixed on the side bracket and is opposite to the barcode scanning slot. When any test tube is opposite to the barcode scanning slot, the test tube barcode scanner can only scan the barcode on the test tube opposite to the barcode scanning slot through the barcode scanning slot.

[0023] The utility model at least has the following beneficial effects:

[0024] The utility model has a simple structure, high reliability and low cost. Compared with the visual detection principle using expensive cameras and complex image recognition algorithms, the instrument using the utility model has a simple structure, lower cost, and is conducive to miniaturization of the instrument. Compared with only one detection method in the photoelectric detection principle, the utility model adopts a detection method combining reflection detection and transmission detection, which can identify all types of test tubes and has higher reliability.

[0025] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of a test tube detection and identification device according to an embodiment of the utility model at one angle;

[0027] Figure 2 It is a structural schematic diagram of a test tube detection and identification device according to an embodiment of the utility model from another angle;

[0028] Figure 3 It is a structural schematic diagram of a mounting bracket and a test tube detection assembly according to an embodiment of the utility model;

[0029] Figure 4 It is a structural schematic diagram of a test tube detection and identification device detecting and identifying a long test tube;

[0030] Figure 5 It is a structural schematic diagram of a test tube detection and identification device detecting and identifying a short test tube;

[0031] Figure 6 It is a schematic diagram of the structure of the test tube detection and identification device detecting and identifying the bullet-shaped test tube;

[0032] Figure 7 It is a flowchart of the test tube detection and identification method;

[0033] Figure 8 It is a flowchart for determining whether a test tube exists in the test tube hole position being tested;

[0034] Fig. 9 Flow chart of the test tube type identification method. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0036] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] like Figures 1 to 9As shown, the utility model provides a test tube detection and identification device, the blood sample is contained in a test tube, the test tube is inserted into the test tube hole of the test tube rack, the test tube rack is inserted into the test tube rack carrier, the test tube rack carrier moves linearly under the drive of power, and a test tube rack sensing window is provided on the test tube rack carrier, the test tube rack sensing window is opposite to the test tube rack, so that the light emitted by the fourth reflective sensor is irradiated to the test tube rack through the test tube rack sensing window and then reflected back to the fourth reflective sensor for reception, and the amount of light reflected back is used to determine whether there is a test tube rack in the test tube rack carrier. In actual use, during the movement of the test tube rack, the test tube rack sensing window can be made to pass through the door-shaped structure bracket first, so that the presence of the test tube rack can be detected first, and then the presence of the test tube and the type of the test tube can be detected; hollow detection windows are respectively provided at positions on both sides of the test tube rack that are opposite to each test tube hole, and the height of the hollow detection window is higher than the height of the test tube rack carrier; the test tube detection and identification device includes:

[0038] A mounting bracket is arranged upstream of the mixing component, that is, the test tube first passes through the mounting bracket and then moves toward the mixing component. The mounting bracket includes a door-shaped structure bracket, and the test tube rack carrier can pass through the door-shaped structure bracket under the driving of power;

[0039] A test tube detection assembly comprising:

[0040] A first detection unit, comprising a first reflective sensor, a second reflective sensor, a third reflective sensor and a first photoelectric transmitter, which are sequentially arranged on one side of the door-shaped structure support from top to bottom, wherein the setting height of the first reflective sensor is consistent with the position of the test tube cap at the top of the long test tube placed in the test tube hole, the setting height of the second reflective sensor is consistent with the position of the test tube cap at the top of the short test tube placed in the test tube hole, the setting height of the third reflective sensor is consistent with the height of the middle part of the bullet-shaped test tube placed in the test tube hole, and the height is within the range of the hollow detection window, and the first photoelectric transmitter is close to the third reflective sensor, and the height is within the range of the hollow detection window;

[0041] The second detection unit includes a first photoelectric receiver and a fourth reflective sensor arranged on the other side of the door-shaped structure support, the first photoelectric receiver is opposite to the first photoelectric transmitter, and the fourth reflective sensor can be opposite to the test tube rack sensing window during the movement of the test tube rack.

[0042] An integrated test tube detection and identification device that integrates test tube detection and test tube type identification comprises a sampling assembly, a mounting bracket 20 and a test tube detection assembly. The sampling assembly comprises a test tube rack carrier 11, a sampling slider (not shown), a sampling guide rail (not shown) and a driving mechanism (not shown). The test tube rack carrier 11 is used to insert a placed test tube rack 40, and a test tube rack sensing window is provided at the inner end of the test tube rack carrier 11. The test tube rack carrier 11 is fixed on the sampling slider (not shown), and the sampling slider (not shown) is assembled on the sampling guide rail (not shown). The driving mechanism (not shown) drives the test tube rack carrier 11 to slide along the guide rail (not shown).

[0043] The mounting bracket 20 is a door-shaped structure, and the middle of the door-shaped structure is a test tube feeding area for the test tube rack 40 to enter and exit. The test tube rack 40 is provided with a test tube hole 41 for placing the test tube, and the test tube hole 41 can be used to place three types of test tubes, namely, a long test tube 42, a short test tube 43 and a bullet-shaped test tube 44. Hollow detection windows 45 are arranged on both sides of the test tube hole 41 in the test tube rack 40, so that light can pass through the hollow detection window 45 and pass through the test tube rack 40.

[0044] The test tube detection assembly includes a first detection unit 31 and a second detection unit 32, and the first detection unit 31 and the second detection unit 32 are respectively arranged on both sides of the door-shaped structure of the mounting bracket 20. The first detection unit 31 comprises a first reflective sensor 311, a second reflective sensor 312, a third reflective sensor 313 and a first photoelectric transmitter 314. The second detection unit comprises a first photoelectric receiver 321 and a fourth reflective sensor 322.

[0045] Among them, the first reflective sensor 311, the second reflective sensor 312, the third reflective sensor 313 and the first photoelectric emitter 414 in the first detection unit 31 are arranged vertically, and the arrangement order from high to low is the first reflective sensor 311, then the second reflective sensor 312, then the third reflective sensor 313, and finally the first photoelectric emitter 314.

[0046] The height at which the first reflective sensor 311 is set should be consistent with the height of the test tube cap position 46 at the top of the long test tube 42 placed in the test tube hole 41, the height at which the second reflective sensor 312 is set should be consistent with the height of the test tube cap position 46 at the top of the short test tube 43 placed in the test tube hole 41, the height at which the third reflective sensor 313 is set should be consistent with the middle height of the bullet-shaped test tube 44 placed in the test tube hole 41 and the height is within the range of the hollow detection window 45, and the first photoelectric emitter 314 should be set directly below the third reflective sensor 313 and the height is within the range of the hollow detection window 45.

[0047] The first photoelectric receiver 321 in the second detection unit 32 is disposed opposite to the first photoelectric transmitter 314 in the first detection unit 31. The fourth reflective sensor 322 in the second detection unit 32 is disposed at the same height as the test tube rack sensing window 12 in the test tube rack carrier 11.

[0048] After the test tube rack 40 is inserted into the test tube rack carrier 11 and abutted against the inner end, the fourth reflective sensor 322 detects that the test tube rack is in place, and then the driving mechanism (not shown) drives the test tube rack carrier 11 to move at the spacing between the test tube holes 41, and sequentially detects the status and type of the test tubes in all the test tube holes 41. The test tube status is present or absent, and the test tube types are long test tubes 42, short test tubes 43, and bullet-shaped test tubes 44. All test tubes have their test tube caps 46 removed before sampling and testing.

[0049] Before the instrument injects the sample, the uncapped sample tube is placed in the test tube hole 41 of the test tube rack 40, and the test tube rack is inserted into the test tube rack carrier 11. After the test tube rack is detected to be in place by the fourth reflective sensor 322, feedback is given to the control system. The control system controls the injection drive system to move the test tube rack carrier to the test tube detection position, and sequentially detects the status and type information of the test tubes in all the test tube holes and feeds back to the control system for record and storage. The control system selects the test tube holes with long test tubes or short test tubes based on the status and type information of the test tubes in the test tube holes.

[0050] Reference Figure 7 , the test tube detection and identification method comprises the following steps:

[0051] S10: When the test tube is detected, when the amount of light received by the receiving holes of the reflective sensors in the first reflective sensor 311, the second reflective sensor 312, the third reflective sensor 313 and the fourth reflective sensor 322 exceeds the set threshold, they return a value of 1 respectively, otherwise they return a value of 0 respectively. When the test tube is detected, when the amount of light received by the first photoelectric receiver 321 exceeds the set threshold, it returns a value of 1, otherwise it returns a value of 0.

[0052] S20: judging whether there is a test tube in the detected test tube hole according to the return values ​​of the third reflective sensor 313 and the first photoelectric receiver 321.

[0053] S30: Further, the test tube type of the detected test tube is determined according to the values ​​returned by the first reflective sensor 311 and the second reflective sensor 312 .

[0054] S40: The return values ​​of the first reflective sensor 311, the second reflective sensor 312, the third reflective sensor 313 and the first photoelectric receiver 321 are combined into an identification code in order, and the returned identification code is compared with a preset identification code to determine the type of the detected test tube.

[0055] When there is a test tube containing non-dark liquid (such as serum or plasma) in the test tube hole being detected, the light emitted by the emitting hole of the third reflective sensor 313 passes through the hollow detection window 45 and illuminates the test tube wall. The amount of light reflected back to the receiving hole of the third reflective sensor 313 will exceed the set threshold value, and it returns a value of 1.

[0056] When there is a test tube containing dark liquid (such as whole blood) in the test tube hole to be detected, part of the light emitted by the emission hole of the third reflective sensor 313 is absorbed after passing through the hollow detection window 45, and the amount of light reflected back to the receiving hole of the third reflective sensor 313 is less than the set threshold value, and it returns to 0. At the same time, the light emitted by the first photoelectric transmitter 314 is blocked, and the amount of light received by the first photoelectric receiver 321 is less than the set threshold value, and it returns to 0.

[0057] When there is no test tube in the test tube hole to be detected, the light emitted by the emission hole of the third reflective sensor 313 passes through the hollow detection window 45 without being reflected by the test tube, and the light amount of the receiving hole of the third reflective sensor 313 is lower than the set threshold value, and it returns a value of 0. At the same time, after the light emitted by the first photoelectric transmitter 314 passes through the hollow detection window 45, the light amount received by the first photoelectric receiver 321 is greater than the set threshold value, and it returns a value of 1.

[0058] In summary, when the third reflective sensor 313 returns a value of 1, it can be determined that a test tube exists. When the third reflective sensor 313 returns a value of 0, it is necessary to combine the return value of the first photoelectric receiver 321 to determine whether a test tube exists.

[0059] Further, see Figure 8 In one example of the method, step S20: judging whether there is a test tube in the detected test tube hole according to the return value of the third reflective sensor 313 and the first photoelectric receiver 321, specifically includes the following steps:

[0060] S21: When the third reflective sensor returns a value of 1, it is determined that a test tube exists in the detected test tube hole, and the return value of the first photoelectric receiver 321 can be ignored.

[0061] S22: When the third reflective sensor returns a value of 0 and the first photoelectric receiver 321 returns a value of 0, it is determined that a test tube exists in the detected test tube hole.

[0062] S23: When the third reflective sensor returns a value of 0 and the first photoelectric receiver 321 returns a value of 1, it is determined that there is no test tube in the detected test tube hole.

[0063] Further, after it is determined through the above step S20 that there is a test tube in the detected test tube hole, refer to Fig. 9 , through step S30: judging the test tube type of the detected test tube according to the values ​​returned by the first reflective sensor 311 and the second reflective sensor 312, specifically including the following steps:

[0064] S31: When the first reflective sensor 311 returns a value of 1, it is determined that the detected test tube is the long test tube 42. The return value of the second reflective sensor 312 can be ignored.

[0065] S32 : When the first reflective sensor 311 returns a value of 0 and the second reflective sensor 312 returns a value of 1, it is determined that the detected test tube is a short test tube 43 .

[0066] S33 : When the first reflective sensor 311 returns a value of 0 and the second reflective sensor 312 returns a value of 0, it is determined that the detected test tube is a bullet-shaped test tube 44 .

[0067] According to the above detection steps, and according to the order combination of the first reflective sensor 311, the second reflective sensor 312, the third reflective sensor 313, and the first photoelectric receiver 321, their possible return values ​​are preset as identification codes. The preset return value identification codes are shown in Table 1, wherein the “×” in the table indicates that the return value can be ignored.

[0068] Table 1 Preset return value identification code table

[0069]

[0070] In another embodiment, in the test tube detection and identification device, the test tube rack has a plurality of test tube holes, and the plurality of test tube holes are arranged in sequence along the movement direction of the test tube rack.

[0071] In another embodiment, the test tube detection and identification device further includes:

[0072] A sample injection assembly comprising:

[0073] An injection guide rail, which is arranged on a fixed base;

[0074] An injection slide block is slidably arranged on the injection guide rail, and a test tube rack carrier is fixed on the injection slide block; a driving motor is arranged at one end of a fixed base;

[0075] A first driving pulley connected to an output end of the driving motor;

[0076] a first driven pulley rotatably disposed at the other end of the fixed base;

[0077] A first driving belt, which is arranged on the first driving pulley and the first driven pulley;

[0078] The card plate has one end stuck on the first driving belt and the other end connected to the side wall of the test tube rack carrier; when the driving motor drives the first active pulley to rotate, the first driving belt can drive the card plate to move linearly, and then the card plate drives the test tube rack carrier to move linearly. The belt card is a small card, one end of which is stuck on the belt and the other end is fixed to the test tube rack carrier by screws, which plays the role of connecting the first driving belt and the test tube rack carrier, so that the test tube carrier follows the belt movement.

[0079] The driving motor drives the first active pulley to rotate, thereby causing the test tube rack carrier to perform linear motion.

[0080] In another embodiment, in the test tube detection and identification device, a barcode is attached to the test tube, and the barcode on the test tube does not affect the detection of the first detection unit and the second detection unit. The mounting bracket further includes a side bracket, and the side bracket is located on one side of the test tube rack carrier, and a barcode scanning slot is provided on the side bracket;

[0081] The test tube detection assembly also includes:

[0082] The test tube barcode scanner is fixed on the side bracket and is opposite to the barcode scanning slot. When any test tube is opposite to the barcode scanning slot, the test tube barcode scanner can only scan the barcode on the test tube opposite to the barcode scanning slot through the barcode scanning slot, so that there is only one barcode image on the image taken by the barcode scanner, avoiding the appearance of two barcodes in the captured image and causing misidentification; the test tube barcode scanner shoots the sample barcode attached to the test tube through the barcode scanning slot opened on the mounting bracket, realizes the function of automatic entry of sample ID information, and uses the blocking of the barcode scanning slot to prevent the misshooting and identification of the barcode of the adjacent test tube.

[0083] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A test tube detection and identification device, wherein a blood sample is placed in a test tube, the test tube is inserted into a test tube hole of a test tube rack, the test tube rack is inserted into a test tube rack carrier, and the test tube rack carrier moves linearly under the driving force, characterized in that: The test tube rack carrier is provided with a test tube rack sensing window, and the test tube rack sensing window is opposite to the test tube rack; hollow detection windows are respectively provided at positions opposite to each test tube hole on both sides of the test tube rack, and the height of the hollow detection window is higher than the height of the test tube rack carrier; The test tube detection and identification device comprises: A mounting bracket, which includes a door-shaped structure bracket, through which the test tube rack carrier can pass under the driving of power; A test tube detection assembly comprising: A first detection unit, comprising a first reflective sensor, a second reflective sensor, a third reflective sensor and a first photoelectric transmitter, which are sequentially arranged on one side of the door-shaped structure support from top to bottom, wherein the setting height of the first reflective sensor is consistent with the position of the test tube cap at the top of the long test tube placed in the test tube hole, the setting height of the second reflective sensor is consistent with the position of the test tube cap at the top of the short test tube placed in the test tube hole, the setting height of the third reflective sensor is consistent with the height of the middle part of the bullet-shaped test tube placed in the test tube hole, and the height is within the range of the hollow detection window, and the first photoelectric transmitter is close to the third reflective sensor, and the height is within the range of the hollow detection window; The second detection unit includes a first photoelectric receiver and a fourth reflective sensor arranged on the other side of the door-shaped structure support, the first photoelectric receiver is opposite to the first photoelectric transmitter, and the fourth reflective sensor can be opposite to the test tube rack sensing window during the movement of the test tube rack.

2. The test tube detection and identification device according to claim 1, characterized in that: The test tube rack has a plurality of test tube holes, and the plurality of test tube holes are arranged in sequence along the moving direction of the test tube rack.

3. The test tube detection and identification device according to claim 1, characterized in that: Also includes: A sample injection assembly, comprising: An injection guide rail, which is arranged on a fixed base; An injection slide block is slidably disposed on the injection guide rail, and a test tube rack carrier is fixed on the injection slide block; A driving motor is arranged at one end of the fixed base; A first driving pulley connected to an output end of the driving motor; a first driven pulley rotatably disposed at the other end of the fixed base; A first driving belt, which is arranged on the first driving pulley and the first driven pulley; The card plate has one end clamped on the first driving belt and the other end connected to the side wall of the test tube rack carrier; when the driving motor drives the first active pulley to rotate, the first driving belt can drive the card plate to make a linear motion, and then the card plate drives the test tube rack carrier to make a linear motion.

4. The test tube detection and identification device according to claim 1, characterized in that: The mounting bracket further comprises a side bracket, the side bracket is located at one side of the test tube rack carrier, and a code scanning slot is provided on the side bracket; The test tube detection assembly also includes: The test tube barcode scanner is fixed on the side bracket and is opposite to the barcode scanning slot. When any test tube is opposite to the barcode scanning slot, the test tube barcode scanner can only scan the barcode on the test tube opposite to the barcode scanning slot through the barcode scanning slot.

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