Short-focus code scanning device and system matched with sample tube rack receiving part for use

Abstract

The utility model discloses a short-focus code scanning device and a short-focus code scanning system used in cooperation with a sample tube rack receiving portion, the short-focus code scanning device comprises a code scanning unit, a motion mechanism and a code scanning chute, and a receiving unit capable of receiving a plurality of sample tube racks in an inserted manner is configured in an external sample tube rack receiving portion matched with the short-focus code scanning device. The code scanning sliding groove is formed in the direction perpendicular to the insertion direction of the sample pipe frame, the movement mechanism can drive the code scanning unit to move in the extending direction of the code scanning sliding groove, and the movement mechanism can stably fix the code scanning unit to the code scanning sliding groove. The code scanning unit can focus on the adjacent sample tube rack and can scan and obtain information of each sample tube in the adjacent sample tube rack. According to the short-focus code scanning device provided by the utility model, the focusing area of the code scanning unit is small, the interference risk of code scanning is low, and code scanning of multiple groups of sample pipe racks arranged in parallel can be efficiently completed with low cost and fool-proof performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a short-focal-length code scanning device and system used in conjunction with a sample tube rack receiving part. Background Art

[0002] With the increasing requirements for refined diagnosis and treatment and the addition of intelligent AI technology, subsequent in vitro diagnosis will establish a reliable traceability mechanism and be able to intelligently and targetedly push diagnostic reports to doctors and patients, thereby achieving the goal of precise and confidential execution of treatment and health care.

[0003] The prerequisite for achieving intelligent traceability and accurate and efficient diagnosis is the ability to quickly obtain information about the samples to be tested, so that the correspondence between the test items and the subjects to be tested can be accurately established. The Chinese invention CN112198331A with a publication date of January 8, 2021 and the Chinese invention CN112415212A patent with a publication date of February 26, 2021 designed an optical detection system layout structure parallel to the movement direction of the sample tube. In order to ensure the effect of reading information when the sample tube is transferred within a limited space, a mirror deflection structure is designed to deflect the field of view of the barcode reading module. The barcode reading optics contains a 45-degree arranged mirror to deflect the optics of the entire reading device, thereby achieving an effect that cannot be detected due to spatial limitations caused by the parallel arrangement. The PCT invention with application number WO2016164473, published on October 13, 2016, also designs a similar structure. To ensure that the sample loading module can add more sample racks, a detection module is arranged on its side. However, due to the different distances between the sample racks and the sample rack of the barcode reading module, if a conventional solution is adopted, the focal lengths of different sample racks from the barcode reading module will be different. In particular, for scenarios where sample tube size information needs to be obtained, different sample racks will not have a unified reference, resulting in the inability to read the sample tube size. In addition, to ensure a basically consistent field of view, the structure disclosed in this solution also inserts an inclined mirror structure into the optical path system of the barcode reading module to ensure that the focal length between the mirror and the barcode reader is fixed, and its diffusion angle will not change with the horizontal distance from the barcode reading module. Chinese invention CN112881735A, published on June 1, 2021, and Chinese invention CN112415216A, published on February 26, 2021, designed a solution for pushing the transferred sample back to its initial position. Such a design will make the addition and removal of sample racks in the system design very complicated, making the cost of the entire design too high and the processing speed difficult to improve. PCT invention WO2020219869A1, published on October 29, 2020, protects a system solution in which a camera unit obtains the barcode information of the sample tube and prepares the final sample liquid, and combines the camera unit's identification information to perform comprehensive adjustment and control of the system. This solution has high requirements for the environment in which the code is scanned and requires a special structural configuration to reduce background interference. Chinese invention CN107066910B, published on October 22, 2021, protects an adjustment control scheme for a barcode scanning module. The scanning offset is compensated by the control of a control device to achieve precise positioning of the scanning position and complete the effect of accurate scanning. The scanning unit is located on the moving part and needs to correct the offset caused by vibration during use. The design is improved from the perspective of the reliable configuration of the scanning unit.The above-disclosed barcode scanning devices mostly require cooperation with a high-sensitivity and high-focusing range barcode scanning unit. The main problem with this design is that the scanning unit is relatively expensive, and there is a problem of missed scanning when performing scanning of sample tubes or sample tube racks at distant locations. The sample tube rack needs to be pulled out multiple times and scanned back and forth multiple times to ensure that the sample tubes or sample tube racks at a distant distance are accurately scanned. This undoubtedly increases the operator's working time and may pose risks such as contamination and loss of sample liquid sticking to the wall during multiple scans.

[0004] In order to achieve low-cost and higher-reliability scanning of multiple sample tubes or sample tube racks, it is urgent to develop a uniquely designed short-focal-length scanning device to balance the demand differences between scanning accuracy, scanning execution efficiency, and equipment cost. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the present invention is implemented through the following technical solutions:

[0006] In a first aspect of the present invention, a short-focus code scanning device for use with a sample tube rack receiving part is provided, comprising a code scanning unit, a motion mechanism and a code scanning slide. The external sample tube rack receiving part that cooperates with the short-focus code scanning device is provided with a receiving unit that can insert and receive multiple sample tube racks. The code scanning slide is arranged in a direction perpendicular to the insertion direction of the sample tube rack. The motion mechanism can drive the code scanning unit to move along the extension direction of the code scanning slide. The motion mechanism can also fix the code scanning unit at one position of the code scanning slide. When an adjacent sample tube rack is inserted into the sample tube rack receiving part, the code scanning unit can focus on the adjacent sample tube rack and can scan and obtain information of each sample tube in the adjacent sample tube rack. The adjacent sample tube rack refers to the sample tube rack within the focal length range of the code scanning unit when the code scanning unit is fixed on the code scanning slide.

[0007] In one embodiment of the present utility model, the motion mechanism is a pulley transmission mechanism, and the code scanning unit is connected to the pulley transmission mechanism. The pulley transmission mechanism includes a first transmission wheel and a second transmission wheel arranged at a preset interval along the extension direction of the code scanning slot. A code scanning transmission belt is wound between the first transmission wheel and the second transmission wheel, and the code scanning unit is connected to the code scanning transmission belt.

[0008] In one embodiment of the present invention, a transmission base plate is arranged at the lower part of the code scanning chute, and the first transmission wheel and the second transmission wheel are fixedly arranged on the transmission base plate. It also includes a positioning base plate fixedly connected to the transmission base plate. The code scanning unit is connected to the plug-in positioning part, and the plug-in positioning part cooperates with the positioning base plate so that the code scanning unit can be fixedly engaged in at least two positions in the extension direction of the code scanning chute.

[0009] In one embodiment of the present invention, the plug-in positioning portion includes a plug-in positioning piece, the positioning substrate includes a positioning surface configured to be parallel to the configuration surface of the code scanning slide, and the positioning surface on the positioning substrate is arranged with multiple groups of positioning holes at intervals, each group of positioning holes includes multiple positioning holes, and the code scanning unit can enable the plug-in positioning piece to be inserted into any positioning hole.

[0010] In one embodiment of the present invention, one end of the plug-in positioning piece is configured as a plug-in end that is at least partially inserted into the positioning hole, and the other end of the plug-in positioning piece is configured as a gripping adjustment end, wherein the cross-sectional area of ​​the plug-in end is smaller than that of the gripping adjustment end.

[0011] In one embodiment of the present invention, the grip adjustment end is further connected to an elastic recovery member, one end of the elastic recovery member is hung on the grip adjustment end, and the other end is hung on the code scanning unit.

[0012] In one embodiment of the present invention, the elastic restoring member is a threaded spring, and the elastic coefficient of the elastic restoring member is in the range of 0.31-0.47 N / mm.

[0013] In one embodiment of the present invention, the pulley transmission mechanism is configured with an electric drive mechanism, which includes a code scanning drive motor, the output of which is connected to the code scanning drive wheel, the code scanning drive wheel, the first transmission wheel and the second transmission wheel are connected by a code scanning transmission belt, and the code scanning drive motor can use the locking force of the motor to fix the code scanning unit at one position of the code scanning slot.

[0014] In one embodiment of the present invention, a tensioning wheel capable of tensioning the code scanning transmission belt is further included.

[0015] In a second aspect of the present invention, a system is provided, including a sample tube rack receiving portion, wherein the sample tube rack receiving portion includes a receiving unit capable of inserting and receiving multiple single-row sample tube racks, and also includes a short-focal-length code scanning device used in conjunction with the sample tube rack receiving portion.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The short-focus scanning device provided by the present invention, used in conjunction with the sample tube rack receiving part, can achieve low-resistance and reliable driving of the scanning unit to change its position through the arrangement of the motion mechanism, and firmly fix it at one position of the scanning chute, so that the scanning unit focuses on the vicinity of the partial area of ​​the sample tube rack to be detected in the sample tube rack receiving part, and completes the information scanning of part of the sample tube rack, and then changes the position of the scanning unit at least once, so that the scanning unit is firmly fixed at another position of the scanning chute different from the previous position, so that the scanning unit focuses on the vicinity of another partial area of ​​the sample tube rack to be detected in the sample tube rack receiving part, so as to complete low-cost and reliable scanning of sample tubes when all sample tube racks enter and exit. The focusing area of ​​the scanning unit is small, and the risk of interference during scanning is also low. Only using the short-focus scanning device, it is possible to complete the scanning of multiple groups of parallel sample tube racks in a low-cost, fool-proof and efficient manner.

[0018] 2. The utility model sets the motion mechanism in the form of a pulley transmission mechanism, which drives the code scanning unit to move along the extension direction of the code scanning slide groove through the pulley transmission mechanism. In one case, the transmission base plate of the pulley transmission mechanism is fixedly connected to the positioning base plate, and a plurality of positioning hole groups are arranged at intervals on the positioning base plate, and each positioning hole group is provided with a plurality of positioning holes. The code scanning unit is provided with a plug-in positioning part that matches the positioning hole, and the plug-in positioning part includes a plug-in positioning piece, one end of which is configured as a plug-in end and the other end is configured as a gripping adjustment end, which can simplify the manual adjustment of the fixed position of the code scanning unit. The gripping adjustment end is also connected to an elastic recovery part, which is configured as a threaded spring with an elastic coefficient in the range of 0.31-0.47N / mm, so that after the gripping adjustment end is loosened, the plug-in end can be reliably fixed in the positioning hole. The code scanning unit can fine-tune the scanning position of the code scanning unit at one of the positions of all positioning hole groups, so that the short-focal-length code scanning device can be consistently and reliably fixed, and has stronger adaptability and flexible adjustment capabilities.

[0019] 3. The short-focal-length code scanning device provided by the present invention is provided with a code scanning drive motor in another case. The code scanning drive wheel, the first transmission wheel and the second transmission wheel are connected by the code scanning transmission belt. The code scanning drive motor is provided to control the start and stop of the code scanning transmission belt, and relies on the locking force of the motor in the stopped state while still energized, so that the code scanning unit can be firmly fixed at a position on the code scanning slide. There is no need to configure a matching plug-in positioning part and a positioning substrate accessory. The code scanning unit can automatically change its fixed position, thereby improving the degree of automation of the code scanning device. By configuring a tensioning wheel that can tension the code scanning transmission belt, the transmission belt tension adjustment is more convenient, and the code scanning drive operation can also be made more reliable.

[0020] 4. The system provided by the present invention, especially the biological sample processing system, is provided with a sample tube rack receiving portion and a short-focus barcode scanning device used in conjunction with the sample tube rack receiving portion, which can perform sample tube scanning during the efficient addition process of multiple groups of sample tube racks at low cost and high reliability.

[0021] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of a state in which a short-focal-length code scanning device used in conjunction with a sample tube rack receiving portion provided in the first embodiment is fixed in a first position of a code scanning chute to perform a sample tube rack code scanning process;

[0023] Figure 2 This is a schematic diagram of another state of another short-focal-length code scanning device provided in the first embodiment, used in conjunction with the sample tube rack receiving portion, being fixed in the second position of the code scanning slot to perform a sample tube rack code scanning process;

[0024] Figure 3 This is another schematic diagram of another state of a short-focal-length code scanning device provided in the first embodiment, used in conjunction with the sample tube rack receiving portion, being fixed in the second position of the code scanning chute to perform a sample tube rack code scanning process;

[0025] Figure 4 This is a schematic structural diagram of the short focal length code scanning device provided in Example 2;

[0026] Figure 5 This is a schematic diagram of the short focal length code scanning device provided by the second embodiment, in which the grip adjustment end is pressed to release the fixed state of the code scanning unit;

[0027] Figure 6 This is a schematic diagram of one state of the process of driving the short focal length code scanning device provided in the second embodiment to adjust the position of the code scanning device;

[0028] Figure 7 This is a schematic diagram of a process in which the short-focal-length code scanning device provided in the second embodiment moves to the second position and is fixed;

[0029] Figure 8 This is a schematic structural diagram of the elastic recovery member configured at the grip adjustment end of the short focal length code scanning device provided in the second embodiment;

[0030] Figure 9 It is a structural diagram of the short focal length code scanning device provided in Example 3.

[0031] Description of reference numerals:

[0032] 11-code scanning chamber; 101-code scanning drive motor; 102-code scanning transmission belt; 103-first transmission wheel; 104-second transmission wheel; 105-tensioning wheel; 110-code scanning unit; 121-code scanning connection block;

[0033] 20-transmission base plate; 21-code scanning slide rail; 22-code scanning slide groove;

[0034] 300-sample tube rack; 311-sample tube rack receiving unit;

[0035] 41 - positioning substrate; 40 - plug-in positioning portion; 401 - plug-in end; 402 - grip adjustment end; 403 - elastic recovery member; 411 - positioning hole. DETAILED DESCRIPTION

[0036] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the scheme according to the present invention is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] The aforementioned and other technical contents, features, and effects of the present invention are clearly presented in the following detailed description of the specific embodiments in conjunction with the accompanying drawings. Through the description of the specific embodiments, a more in-depth and specific understanding of the technical means and effects adopted by the present invention to achieve the intended purpose can be obtained. However, the accompanying drawings are for reference and illustration purposes only and are not intended to limit the technical solutions of the present invention.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations are intended to cover non-exclusive inclusion, such that an article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the article or device comprising the element.

[0039] Example 1

[0040] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a state in which a short-focus scanning device used in conjunction with a sample tube rack receiving portion provided in the first embodiment is fixed in the first position of a scanning chute to perform a sample tube rack scanning process. Figure 2This is a schematic diagram of a state in which another short-focal-length code scanning device provided in accordance with the first embodiment, used in conjunction with a sample tube rack receiving portion, is fixed in the second position of a code scanning chute to perform a sample tube rack code scanning process. The first position is one position of the code scanning chute, and the second position is another position of the code scanning chute. The short-focal-length code scanning device provided in this embodiment includes a code scanning unit 110, a motion mechanism, and a code scanning chute 22. The external sample tube rack receiving portion that cooperates with the short-focal-length code scanning device is provided with a receiving unit 311 capable of inserting and receiving multiple sample tube racks 300. The code scanning chute 22 is arranged in a direction perpendicular to the insertion direction of the sample tube rack 300. The motion mechanism can drive the code scanning unit 110 to move along the extension direction of the code scanning chute 22. The motion mechanism can also firmly fix the code scanning unit 110 at one position of the code scanning chute 22. When an adjacent sample tube rack 300 is inserted into the sample tube rack receiving portion, the code scanning unit 110 can focus on the adjacent sample tube rack 300 and can scan and obtain information of each sample tube in the adjacent sample tube rack. The adjacent sample tube rack refers to the sample tube rack within the focal length range of the code scanning unit 110 when the code scanning unit 110 is firmly fixed on the code scanning slot 22.

[0041] Specifically, if Figure 3 As shown, the sample tube rack receiving portion is provided with a plurality of sample tube rack receiving units 311 arranged in parallel. In order to ensure that the sample tube rack receiving unit 311 can reliably receive the sample tube rack, a sample tube rack constraint is configured in the sample tube rack receiving unit 311. The sample tube rack constraint is a plurality of constraint blocks arranged at intervals along the insertion direction of the sample tube rack. Among the plurality of constraint blocks arranged at intervals, the adjacent constraint blocks arranged at intervals can form a reliable constraint limit for the inserted sample tube rack. A Hall sensor unit is also configured near the insertion port of each sample tube rack receiving unit 311. The Hall sensor unit can sense the position of the inserted sample tube rack to indicate the optimal fixed scanning position corresponding to the short-focus scanning device. Here, the sample tube rack 300 can include 8, 9, 10, 11, 12 or other number of sample tube receiving positions. These sample tube receiving positions can accommodate different types of sample tubes, such as blood, tissue fluid or various types of swab preservation fluids. Preferably, each sample tube contains an identification barcode, and the sample tube rack itself may also contain a tube rack barcode and / or a receiving position barcode. The short-focus scanning device can identify the barcode of the sample tube rack itself and the sample tube barcode. The information obtained by scanning the code can then be associated with the automated processing system, thereby completing the association of corresponding inspection items and subsequent traceability and establishment of a health data management library, etc.

[0042] In this embodiment, the sample tube rack receiving units can be arranged in parallel as dozens or tens of 12*1, 13*1, 14*1, 15*1, etc., and a code scanning slot 22 is arranged in the vertical direction of the insertion direction of the sample tube rack 300. The code scanning slot 22 is connected with a code scanning unit 110 that can slide along its extension direction. In order to make the code scanning unit 110 reliably fixed to ensure efficient and fast code scanning and identification, the code scanning unit 110 is configured in the code scanning bin 11. The code scanning bin 11 can at least partially surround the code scanning unit 110 so that its contamination risk is smaller. The bottom of the code scanning bin 11 passes through the code scanning slot 22 and is connected to the motion mechanism by the code scanning connecting block 121. Here, the code scanning unit 110 is a short-focal-length device. The short-focal-length device can perform higher-sensitivity code scanning operations due to its shorter focusing distance and has a relatively lower configuration cost. The code scanning unit 110 is fixed at one of the fixed positions and focuses only on a portion of the inserted sample tube rack 300. In order to ensure that the sample tube rack 300 at the edge can be efficiently and accurately identified during the insertion process, the code scanning unit 110 can be fixed in the middle or near the middle of the code scanning slot 22. As the sample tube rack 300 is inserted, the fixed position of the code scanning unit 110 is changed at least once along the extension direction of the code scanning slot 22. Figure 2 As shown in the figure, the code scanning unit 110 is set at the end of the code scanning chute 22, so that the code scanning unit 110 can perform the code scanning and adding operations of all sample tube racks.

[0043] The short-focal-length code scanning device provided in this embodiment, used in conjunction with the sample tube rack receiving portion, can reliably drive the code scanning unit to change position with low resistance through the arrangement of the motion mechanism. By changing the position of the code scanning unit at least twice in a direction perpendicular to the insertion direction of the sample tube rack, the code scanning unit is focused multiple times on different areas of the sample tube rack to be inspected in the sample tube rack receiving portion until low-cost and reliable code scanning of sample tubes is completed when all sample tube racks enter and exit. The focusing area of ​​the code scanning unit is small, and the risk of interference during code scanning is also low. Using only the short-focal-length code scanning device, it is possible to complete the code scanning of multiple groups of parallel sample tube racks in a low-cost, fool-proof and efficient manner.

[0044] Example 2

[0045] Please refer to Figure 4 , Figure 4It is a structural schematic diagram of the short-focal-length code scanning device provided in Example 2. The code scanning unit 110 is a short-focal-length code scanning device, and the motion mechanism is a pulley transmission mechanism. The code scanning unit 110 is connected to the pulley transmission mechanism. The pulley transmission mechanism includes a first transmission wheel 103 and a second transmission wheel 104 arranged at a preset interval along the extension direction of the code scanning slot 22. A code scanning transmission belt 102 is wound between the first transmission wheel 103 and the second transmission wheel 104. The code scanning unit 110 is connected to the code scanning transmission belt 102. Specifically, the code scanning unit 110 is connected to the code scanning transmission belt 102 through a code scanning connection block 121.

[0046] Specifically, in order to ensure that the code scanning unit 110 is reliably fixed to ensure efficient and rapid code scanning and identification of the sample tube, the code scanning unit 110 is configured in the code scanning bin 11, and the code scanning bin 11 can at least partially surround the code scanning unit 110 so that the risk of contamination of the code scanning unit 110 is relatively low. The code scanning unit 110 is connected to the pulley transmission mechanism through the extension of the code scanning bin 11. The pulley transmission mechanism specifically includes a first transmission wheel 103 and a second transmission wheel 104 arranged at a preset interval along the extension direction of the code scanning chute 22. A code scanning transmission belt 102 is wound between the two transmission wheels. A code scanning connection block 121 is fixedly connected to one position of the code scanning transmission belt 102, and the code scanning connection block is also fixedly connected to the extension of the code scanning bin 11. In order to ensure the reliable configuration of the transmission, a transmission base plate 20 is arranged at the lower part of the code scanning chute 22, and the first transmission wheel 103 and the second transmission wheel 104 are fixedly arranged on the transmission base plate 20. The transmission base plate 20 may include a transmission connection part with a 90° angle with the configuration plane of the code scanning chute 22. The code scanning slide rail may be arranged on the transmission connection part, and the code scanning connection block 121 can be connected to the code scanning slide rail in an interlocking manner, so that the code scanning unit 110 is connected to the code scanning transmission belt 102 and is driven to slide along the code scanning slide rail. In this way, the pulley transmission mechanism can be optimally configured and subsequent maintenance is more convenient.

[0047] Preferably, the distance between the two transmission belts is configured to be 0.8-1.2 times the extension distance of the code scanning chute 22, so as to ensure the reliability of the transmission mechanism movement.

[0048] Preferably, in order to ensure that the code scanning unit 110 can be reliably fixed in different positions to complete the code scanning operation, it also includes a positioning substrate 41 fixedly connected to the transmission substrate 20. Here, the cross-sectional shape of the positioning substrate 41 is optimally L-shaped. The code scanning unit 110 is connected to the plug-in positioning portion 40, and the plug-in positioning portion 40 cooperates with the positioning substrate 41 so that the code scanning unit 110 can be fixedly engaged in at least two positions in the extension direction of the code scanning slot 22.

[0049] Furthermore, the insertion and positioning portion 40 includes an insertion positioning piece, and the positioning base plate 41 includes a positioning surface configured to be parallel to the configuration surface of the code scanning chute 22. The positioning surface of the positioning base plate 41 has multiple groups of positioning holes arranged at intervals, and each group of positioning holes includes multiple positioning holes 411. The code scanning unit 110 can insert the insertion positioning piece into any positioning hole 411 to firmly fix the code scanning unit 110 there. Specifically, in a group of positioning holes 411 within the fixed position of the code scanning unit 110, the insertion positioning piece is adjusted to different hole positions, thereby enabling the code scanning unit 110 to slightly adjust its fixed position. In this embodiment, the positioning surface of the positioning substrate 41 is arranged with three groups of positioning holes at intervals, and each group of positioning holes contains no less than two positioning holes 411. The code scanning unit 110 can be fixed in different positioning holes 411 in any group of positioning holes to achieve the effect of slightly adjusting its fixed position, thereby ensuring that the code scanning unit can perform the scanning operation efficiently and accurately. The number of positioning holes in each group of positioning holes shown in the figure is 3. Of course, the number of positioning hole groups can also be 2 groups, 4 groups, 5 groups, etc., so that a number of positioning holes 411 are arranged at intervals.

[0050] Preferably, one end of the plug-in positioning piece is configured as a plug-in end 401 that is at least partially inserted into the positioning hole 411, thereby realizing the plug-in fit between the plug-in positioning portion 40 and the positioning substrate 41. The code scanning unit 110 will rely on the plug-in fit between the plug-in end and the positioning hole to reliably fix it in one of the positions of the code scanning slot 22 to perform the code scanning operation. The other end of the plug-in positioning piece is configured as a grip adjustment end 402, wherein the cross-sectional area of ​​the plug-in end 401 is smaller than that of the grip adjustment end 402, so that the resistance of the plug-in end 401 inserted into the positioning hole 411 is smaller and the plug-in fit reliability is higher, and the grip adjustment end 402 has a larger cross-sectional area, so that the operator has a larger contact surface when manually operating the grip adjustment end, ensuring comfort while also generating a greater adjustment force.

[0051] The following describes the process of adjusting the code scanning unit 110 provided in this embodiment from the first position of the positioning surface 41 on the positioning substrate to the second position. Figure 4 and Figure 5 As shown, it is shown that the adjustment force is applied to the grip adjustment end 402, thereby driving the plug positioning piece to move upward, releasing the plugging state of the plugging end 401 in the positioning hole at the first position, and then the code scanning unit 110 can be pushed to move to a second position different from the first position. After reaching the second position, as shown in FIG. Figure 6 and Figure 7 As shown, the plug end 401 can be inserted into the positioning hole 411 at the second position.

[0052] Please refer to Figure 8 , Figure 8This is a structural diagram of the elastic recovery part configured at the holding adjustment end of the short-focal-length code scanning device provided in Example 2. In order to ensure that the plug-in positioning piece can automatically restore the plug-in state, the holding adjustment end is also connected to an elastic recovery part 403. One end of the elastic recovery part 403 is hung on the holding adjustment end 402, and the other end is hung on the code scanning unit 110. Specifically, the other end is hung at a fixed position in the code scanning chamber 11.

[0053] Preferably, the elastic recovery member 403 is a threaded spring, and the elastic coefficient of the elastic recovery member 403 ranges from 0.31 to 0.47 N / mm. An excessively large elastic coefficient will require a greater grip adjustment force, and may cause risks such as scratches and breakage to the positioning substrate 41 or the plug-in end 401 when changing the position of the code scanning unit 110. An excessively small elastic coefficient may not be sufficient to overcome the resistance during the plug-in process, making the plug-in fixation unreliable.

[0054] In this embodiment, the motion mechanism is set as a pulley transmission mechanism, which drives the code scanning unit to move along the extension direction of the code scanning slide groove through the pulley transmission mechanism. The transmission base plate of the pulley transmission mechanism is fixedly connected to the positioning base plate. By arranging multiple groups of positioning hole groups at intervals on the positioning base plate, and setting each group of positioning hole groups to include multiple positioning holes, the code scanning unit is provided with a plug-in positioning part that matches the positioning hole. The plug-in positioning part includes a plug-in positioning piece, one end of which is configured as a plug-in end and the other end is configured as a gripping adjustment end, which can simplify the goal of manually adjusting the fixed position of the code scanning unit. The gripping adjustment end is also connected to an elastic recovery part, which is configured as a threaded spring with an elastic coefficient in the range of 0.31-0.47N / mm, which can achieve the effect of the plug-in end being reliably fixed in the positioning hole after the gripping adjustment end is loosened. The code scanning unit can fine-tune the scanning position of the code scanning unit at one of the positions of all positioning hole groups, so that the short-focal-length code scanning device can be consistently and reliably fixed, and has stronger adaptability and flexible adjustment capabilities.

[0055] Example 3

[0056] Please refer to Figure 9 , Figure 9It is a structural diagram of the short-focal-length code scanning device provided in Example 3. The code scanning unit 110 is configured with an extension of the code scanning chamber 11 connected to a pulley transmission mechanism, and the pulley transmission mechanism is configured with an electric drive mechanism. The electric drive mechanism can replace the code scanning unit 110 to be firmly fixed on the code scanning chute 22, without the need to provide a plug-in positioning portion 40 and a positioning substrate 41 as in Example 2 to achieve the purpose of firmly fixing the code scanning unit 110 on the code scanning chute 22. Specifically, the electric drive mechanism includes a code scanning drive motor 101, the output of the code scanning drive motor 101 is connected to the code scanning drive wheel, and the code scanning drive wheel, the first transmission wheel 103 and the second transmission wheel 104 are connected by a code scanning transmission belt 102. The code scanning drive motor 101 can use the locking force of the motor to firmly fix the code scanning unit 110 at one position of the code scanning chute 22. The scanning drive motor 101 drives the scanning belt 102 to stop at any position within a certain distance range, so that the scanning unit 110 can be firmly docked at any position on the scanning chute 22. In this embodiment, the scanning drive motor 101 is fixedly connected to the transmission base plate 20.

[0057] Preferably, the short focal length code scanning device also includes a tensioning wheel 105 that can tighten the code scanning transmission belt 102. Optimally, the position of the tensioning wheel 105 is adjustable, so that the tension of the code scanning transmission belt can be adjusted, and the problem of reduced transmission reliability caused by the possible loosening of the transmission belt after long-term operation can be solved.

[0058] The short-focal-length code scanning device provided in this embodiment is equipped with a code scanning drive motor, and the code scanning drive wheel, the first transmission wheel and the second transmission wheel are connected by the code scanning transmission belt. The code scanning drive motor is capable of controlling the start and stop of the code scanning transmission belt, and relies on the locking force of the motor in the stopped state while still energized, so that the code scanning unit can be firmly fixed at a position on the code scanning slide groove. There is no need to configure a matching plug-in positioning part and a positioning substrate accessory. The code scanning unit can automatically change its fixed position, thereby improving the degree of automation of the code scanning device. By configuring a tensioning wheel that can tighten the code scanning transmission belt, the transmission belt tension can be adjusted more conveniently, and the code scanning drive operation can be made more reliable.

[0059] Example 4

[0060] A system, specifically a biological sample processing system, includes a sample rack receiving portion, the sample rack receiving portion including a receiving unit capable of receiving multiple single-row sample racks, and a short-focus barcode scanning device, as disclosed in any of the above embodiments, for use with the sample rack receiving portion. The specific structure of the sample rack receiving portion is consistent with the sample rack receiving portion described in Example 1. The sample processing system can perform in vitro diagnostic tests such as electrochemiluminescence detection, molecular diagnosis, or enzyme immunoassay. Biological sample processing systems equipped with the short-focus barcode scanning device of the present invention have a wide range of applications.

[0061] The biological sample processing system provided in this embodiment is provided with a sample tube rack receiving portion and a short-focus barcode scanning device used in conjunction with the sample tube rack receiving portion, which can perform sample tube scanning during the efficient addition process of multiple groups of sample tube racks at low cost and high reliability.

[0062] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A short-focus barcode scanning device used in conjunction with a sample tube rack receiving portion, characterized in that: The invention comprises a code scanning unit (110), a motion mechanism and a code scanning chute (22); an external sample tube rack receiving portion cooperating with the short focal length code scanning device is provided with a receiving unit (311) capable of inserting and receiving a plurality of sample tube racks (300); the code scanning chute (22) is arranged in a direction perpendicular to the insertion direction of the sample tube rack (300); the motion mechanism can drive the code scanning unit (110) to move along the extension direction of the code scanning chute (22); the motion mechanism can also fix the code scanning unit (110) at one position of the code scanning chute (22); when an adjacent sample tube rack is inserted into the sample tube rack receiving portion, the code scanning unit (110) can focus on the adjacent sample tube rack and can scan and obtain information of each sample tube in the adjacent sample tube rack; the adjacent sample tube rack refers to the sample tube rack within the focal length range of the code scanning unit (110) when the code scanning unit (110) is fixed on the code scanning chute (22).

2. The short-focus barcode scanning device used in conjunction with the sample tube rack receiving portion according to claim 1, characterized in that: The motion mechanism is a pulley transmission mechanism, the code scanning unit (110) is connected to the pulley transmission mechanism, the pulley transmission mechanism comprises a first transmission wheel (103) and a second transmission wheel (104) arranged at a preset interval along the extending direction of the code scanning chute (22), a code scanning transmission belt (102) is wound between the first transmission wheel (103) and the second transmission wheel (104), and the code scanning unit (110) is connected to the code scanning transmission belt (102).

3. The short-focus barcode scanning device used with the sample tube rack receiving portion according to claim 1, characterized in that: A transmission base plate (20) is arranged at the lower part of the code scanning chute (22), a first transmission wheel (103) and a second transmission wheel (104) are fixedly arranged on the transmission base plate (20), and a positioning base plate (41) fixedly connected to the transmission base plate (20) is also included. The code scanning unit (110) is connected to the plug-in positioning portion (40), and the plug-in positioning portion (40) cooperates with the positioning base plate (41) so that the code scanning unit (110) can be fixedly engaged at at least two positions in the extension direction of the code scanning chute (22).

4. The short-focus barcode scanning device used in conjunction with the sample tube rack receiving portion according to claim 3, characterized in that: The plug-in positioning portion (40) includes a plug-in positioning piece, the positioning substrate (41) includes a positioning surface configured to be parallel to the configuration surface of the code scanning slide groove (22), the positioning surface on the positioning substrate (41) is arranged with multiple groups of positioning hole groups at intervals, each group of positioning hole groups includes multiple positioning holes (411), and the code scanning unit (110) can insert the plug-in positioning piece into any positioning hole (411).

5. The short-focus barcode scanning device used in conjunction with the sample tube rack receiving portion according to claim 4, characterized in that: One end of the plug-in positioning piece is configured as a plug-in end (401) that is at least partially inserted into the positioning hole (411), and the other end of the plug-in positioning piece is configured as a gripping adjustment end (402), wherein the cross-sectional area of ​​the plug-in end (401) is smaller than that of the gripping adjustment end (402).

6. The short-focus barcode scanning device used in conjunction with the sample tube rack receiving portion according to claim 5, characterized in that: The grip adjustment end is also connected to an elastic recovery member (403), one end of the elastic recovery member (403) is hooked on the grip adjustment end (402), and the other end is hooked on the code scanning unit (110).

7. The short-focus barcode scanning device used in conjunction with the sample tube rack receiving portion according to claim 6, characterized in that: The elastic recovery member (403) is a threaded spring, and the elastic coefficient of the elastic recovery member (403) ranges from 0.31 to 0.47 N / mm.

8. The short-focus barcode scanning device used in conjunction with the sample tube rack receiving portion according to claim 2, characterized in that: The pulley transmission mechanism is equipped with an electric drive mechanism, which includes a code scanning drive motor (101). The output of the code scanning drive motor (101) is connected to the code scanning drive wheel. The code scanning drive wheel, the first transmission wheel (103) and the second transmission wheel (104) are connected by a code scanning transmission belt (102). The code scanning drive motor (101) can use the locking force of the motor to fix the code scanning unit (110) at one position of the code scanning chute (22).

9. The short-focus barcode scanning device used in conjunction with the sample tube rack receiving portion according to claim 8, characterized in that: It also includes a tensioning wheel (105) capable of tensioning the code scanning transmission belt (102).

10. A system, characterized in that: It comprises a sample tube rack receiving portion, which includes a receiving unit capable of inserting and receiving a plurality of single-row sample tube racks, and also comprises a short-focal-length code scanning device used in conjunction with the sample tube rack receiving portion as described in any one of claims 1-9.

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