A bilirubin concentration detection device

Abstract

The application discloses a bilirubin concentration detection device, comprising a reagent arm module and a sample arm module, which both comprise a sample inlet needle, an execution arm and a connecting head, the sample inlet needle is kept synchronous activity with the execution arm through the connecting head, and the device further comprises a first driving mechanism, a second driving mechanism, a transmission mechanism and a motor; the first driving mechanism comprises a screw nut, the transmission mechanism couples the motor to the first driving mechanism and drives the screw nut to rotate, so that the execution arm moves along the vertical direction; the second driving mechanism comprises a spline nut, the transmission mechanism couples the motor to the first driving mechanism and the second driving mechanism and simultaneously drives the screw nut and the spline nut to rotate, so that the execution arm swings along the horizontal direction. The bilirubin concentration detection device provided by the application simplifies the circuit relationship of the equipment, avoids the complicated work of circuit maintenance, and is far superior to the time of circuit troubleshooting in the troubleshooting efficiency of mechanical failure, thereby facilitating the later repair work of the equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bilirubin detection, and particularly relates to a bilirubin concentration detection device. BACKGROUND

[0002] Bilirubin detection can be checked by serum and urine, and serum detection is more reliable than urine detection, so serum detection is generally used in clinical practice. The concentration of direct bilirubin and total bilirubin in serum is determined to determine the three kinds of jaundice, hemolytic jaundice and hepatocellular jaundice.

[0003] According to patent No. CN201010153069.X, a full-automatic biochemical analyzer and a testing method thereof are disclosed (published) on October 19, 2011, which comprises a first reagent disc for bearing a reagent container; a second reagent disc for bearing a reagent container, the second reagent disc is coaxial with the first reagent disc; a first driving system for driving the first reagent disc to rotate; a second driving system for driving the second reagent disc to rotate. The two reagent discs are coaxially placed, more reagent positions can be set under certain size limitation of the table surface, thereby increasing the number of online analysis projects that the instrument can simultaneously analyze.

[0004] The full-automatic biochemical analyzer has a reagent arm module, a reagent disc module, a stirring mechanism, a micro-injection module, a sample disc module, a reaction disc module, a cleaning module, a sewage discharge module and a sample arm module. The operation process is as follows:

[0005] 1. The reagent arm module needs to extract the serum sample in the sample disc module, then put it into the reagent disc module, and finally transfer it to the sewage discharge module. The sewage discharge module receives the sewage discharged by the reagent arm module for cleaning. After cleaning, the reagent arm module extracts the serum sample from the sample disc module again.

[0006] 2. The sample arm module extracts the sample in the reagent disc module, then puts it into the reaction disc module, and finally transfers it to the sewage discharge module. The sewage discharge module receives the sewage discharged by the sample arm module for cleaning. After cleaning, the sample arm module extracts the sample from the reagent disc module again.

[0007] In the above steps, the reagent arm module and the sample arm module need to complete three actions of rising, falling and rotating when executing the command. It is driven by a motor to drive the spline nut and the screw nut, and the required actions are completed under the cooperation of the program. Each action needs to be assisted by electronic components to control the motor driving the spline nut and the screw nut to rotate to complete the corresponding action. The whole control program is relatively complex, a large number of electronic components are used, the performance is difficult to guarantee in the later period, and after a fault occurs, the corresponding circuit and mechanical structure need to be checked respectively, so the fault repair time is relatively long and the checking is relatively tedious. SUMMARY

[0008] The object of the present application is to provide a bilirubin concentration detection device to solve the above problems.

[0009] To achieve the above object, the present application provides the following technical solution: a bilirubin concentration detection device, comprising a reagent arm module and a sample arm module, both of which include a sample injection needle, an execution arm and a connecting head, the sample injection needle is kept synchronous movement with the execution arm through the connecting head, further comprising a first driving mechanism, a second driving mechanism, a transmission mechanism and a motor;

[0010] The first driving mechanism includes a screw nut, the transmission mechanism couples the motor to the first driving mechanism and drives the screw nut to rotate, so that the execution arm moves in the vertical direction;

[0011] The second driving mechanism includes a spline nut, the transmission mechanism couples the motor to the first driving mechanism and the second driving mechanism and simultaneously drives the screw nut and the spline nut to rotate, so that the execution arm swings in the horizontal direction.

[0012] As a preferred, the number of screw nuts is two, namely a first screw nut and a second screw nut, wherein:

[0013] When the first screw nut is driven by the transmission mechanism, it rotates clockwise to make the execution arm move upward in the vertical direction;

[0014] When the second screw nut is driven by the transmission mechanism, it rotates counterclockwise to make the execution arm move downward in the vertical direction.

[0015] As a preferred, a synchronous transmission mechanism is provided between the first screw nut and the second screw nut.

[0016] As a preferred, the number of spline nuts is two, namely a first spline nut and a second spline nut,

[0017] Wherein:

[0018] When the first spline nut is driven by the transmission mechanism, it rotates clockwise in cooperation with the screw nut to make the execution arm swing leftward in the horizontal direction;

[0019] When the second spline nut is driven by the transmission mechanism, it rotates counterclockwise in cooperation with the screw nut to make the execution arm swing rightward in the horizontal direction.

[0020] Preferably, a synchronous transmission mechanism is arranged between the first spline nut and the second spline nut, and an electromagnetic locking mechanism is arranged on the synchronous transmission mechanism, and the electromagnetic locking mechanism is used for locking / releasing the first spline nut and the second spline nut.

[0021] Preferably, the transmission mechanism comprises at least one switching mechanism, and the transmission mechanism is controlled by the switching mechanism to drive the first driving mechanism and the second driving mechanism respectively.

[0022] Preferably, the transmission mechanism comprises a sleeve rod moving in a vertical direction, and the sleeve rod is respectively provided with a first synchronizer capable of being coupled with the first driving mechanism and a second synchronizer capable of being coupled with the second driving mechanism.

[0023] Further comprising a switching mechanism, and the switching mechanism is used for driving the sleeve rod to move in the vertical direction to switch the first synchronizer and the second synchronizer between the first driving mechanism and the second driving mechanism.

[0024] Preferably, the transmission mechanism further comprises a rhombic column driven to rotate by a motor, and the sleeve rod is slidingly arranged on the rhombic column.

[0025] Preferably, the switching mechanism comprises a track disc driven to rotate by a motor, and the sleeve rod is tangent to an end surface of the track disc and synchronously moves with the concave-convex change of the end surface of the track disc.

[0026] Preferably, the first synchronizer and the second synchronizer are both composed of a disc body and guide rods distributed in a circumferential array outside the disc body, and both ends of the guide rods are respectively provided with tapered columns.

[0027] In the above technical solution, the bili concentration detection device provided by the application has the following beneficial effects: the torque force output by the motor is transmitted to the first driving mechanism and the second driving mechanism by the transmission mechanism, so that the vertical movement and the horizontal swing of the execution arm are realized. The work positions of the two motors are combined on one motor, power transmission is performed by the transmission mechanism, the reagent arm module and the sample arm module are driven to complete the switching of three positions of sampling, sample feeding and cleaning and waste discharge by the pure mechanical transmission mechanism, the cumbersome work of circuit maintenance is avoided, the troubleshooting efficiency of mechanical failure is far superior to that of circuit troubleshooting, and the later repair work of the equipment is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only represent some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0029] Figure 1 The overall structural schematic diagram provided by the embodiment of the present application is shown in the figure.

[0030] Figure 2 The partial structural schematic diagram of the first driving mechanism, the second driving mechanism and the execution arm provided by the embodiment of the present application is shown in the figure.

[0031] Figure 3 The structural schematic diagram of the first driving mechanism, the second driving mechanism and the synchronous transmission mechanism provided by the embodiment of the present application is shown in the figure.

[0032] Figure 4 The structural schematic diagram of the transmission mechanism, the motor and the switching mechanism provided by the embodiment of the present application is shown in the figure.

[0033] Figure 5 The exploded structural schematic diagram of the transmission mechanism, the motor and the switching mechanism provided by the embodiment of the present application is shown in the figure.

[0034] Figure 6 The exploded structural schematic diagram of the second screw nut and the second spline nut provided by the embodiment of the present application is shown in the figure.

[0035] Figure 7 The exploded structural schematic diagram of the first screw nut and the first spline nut provided by the embodiment of the present application is shown in the figure.

[0036] Figure 8 The moving path structural schematic diagram of the track disc provided by the embodiment of the present application is shown in the figure.

[0037] Figure 9 The moving path structural schematic diagram of the track disc provided by the embodiment of the present application is shown in the figure.

[0038] Explanation of reference signs:

[0039] 1. Injection needle; 2. Actuating arm; 3. Connector; 4. First drive mechanism; 41. First lead screw nut; 411. Fifth synchronizer; 42. Second lead screw nut; 421. First gear; 422. Second gear; 423. Sixth synchronizer; 5. Second drive mechanism; 51. First spline nut; 511. Third synchronizer; 52. Second spline nut; 521. Third gear; 522. Fourth gear; 523. Fourth synchronizer; 6. Transmission Mechanism; 61. Sleeve rod; 62. First synchronizer; 621. Disc body; 622. Guide rod; 623. Conical column; 63. Second synchronizer; 64. Rhomboid column; 65. Frame; 7. Motor; 8. Switching mechanism; 81. Track disc; 811. First-level high-position sliding section; 812. Second-level high-position sliding section; 813. Third-level high-position sliding section; 814. Secondary abutment section; 82. Guide column sleeve; 83. Fifth gear; 84. Sixth gear; 9. Synchronous transmission mechanism. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] like Figures 1-9 As shown, a bilirubin concentration detection device includes a reagent arm module and a sample arm module, each of which includes an injection needle 1, an execution arm 2 and a connector 3. The injection needle 1 moves synchronously with the execution arm 2 through the connector 3. The device also includes a first drive mechanism 4, a second drive mechanism 5, a transmission mechanism 6 and a motor 7.

[0042] The first drive mechanism 4 includes a lead screw and nut, and the transmission mechanism 6 couples the motor 7 to the first drive mechanism 4 and drives the lead screw and nut to rotate so that the actuator arm 2 moves in the vertical direction;

[0043] The second drive mechanism 5 includes a spline nut. The transmission mechanism 6 couples the motor 7 to the first drive mechanism 4 and the second drive mechanism 5 respectively and drives the lead screw nut and the spline nut to rotate, so that the actuator arm 2 swings in the horizontal direction.

[0044] Specifically, the fully automated biochemical analyzer includes a reagent tray module, a sample tray module, a reaction tray module, a cleaning module, a waste removal module, and a sample arm module. The reagent tray module, sample tray module, and reaction tray module are arranged according to the apex angle of an equilateral triangle. A waste removal module is also provided between the reagent tray module and the sample tray module, and between the sample tray module and the reaction tray module. The movement mode of the reagent arm module in the above embodiment is as follows:

[0045] 1. The lead screw nut and spline nut are driven to rotate simultaneously. When they rotate clockwise, the actuator arm 2 swings from the sewage discharge module to the reagent tray module.

[0046] 2. When the lead screw nut is driven to rotate counterclockwise, the actuator arm 2 will descend vertically downwards. When it reaches the predetermined height, the needle of the injection needle 1 will enter the serum sample box in the reagent tray module to extract a predetermined volume of serum sample. Then, when the lead screw nut is driven to rotate clockwise, the actuator arm 2 will ascend vertically to the predetermined height.

[0047] 3. When the lead screw nut and spline nut are driven to rotate simultaneously, if they rotate counterclockwise, the actuator arm 2 will swing from the reagent tray module to the sample tray module. Then, if the lead screw nut is driven to rotate counterclockwise, the actuator arm 2 will descend vertically downwards. When it reaches the predetermined height, the needle tip of the injection needle 1 will be released. Then, if the lead screw nut is driven to rotate clockwise, the actuator arm 2 will ascend vertically to the predetermined height.

[0048] 4. The lead screw nut and spline nut are driven to rotate simultaneously. When rotated clockwise, the actuator arm 2 swings from the sample tray module to the drain module. Then, the cleaning module inside the connector 3 will flush the injection needle 1, and the flushing liquid will be discharged into the drain module.

[0049] The sample arm module, driven by the cooperation of the first drive mechanism 4 and the second drive mechanism 5, performs the same actions as the reagent arm module. The difference is that the sample arm module switches between three positions: the sample plate module, the waste discharge module, and the reaction plate module. This is common knowledge and will not be elaborated on in detail.

[0050] Furthermore, the biggest difference between the technical solution provided in the embodiment and the original drive solution is that the solution utilizes the torque output of a motor 7, which is switched between the first drive mechanism 4 and the second drive mechanism 5 via a transmission mechanism 6. The transmission mechanism 6 referred to in this invention can be a linkage mechanism. The swing of the input end of the linkage mechanism can cause the output end to swing synchronously, and its swing operation is an arc-shaped path. When the motor 7 is located at the output end, the first drive mechanism 4 and the second drive mechanism 5 are designed with corresponding gear sets to cooperate with the swinging motor 7. The gears on the output end of the motor at both ends of the arc can mesh with the gear set of the first drive mechanism 4, or simultaneously mesh with the gear sets of the first drive mechanism 4 and the second drive mechanism 5; or it can be two independent sleeves distributed vertically, and then the sleeves drive the lead screw nut and spline nut through gears or belts. An expansion tube is installed on the output shaft of the motor, and the telescopic rod pushes the motor to move in the vertical direction, so that the expansion tube is clamped on the sleeve of the drive lead screw nut, or clamped on the sleeve of the drive lead screw nut and spline nut; or it can be a power switching mechanism known to those skilled in the art.

[0051] In the technical solution, the torque force output by the motor 7 is transmitted to the first driving mechanism 4 and the second driving mechanism 5 by the transmission mechanism 6, so as to realize the vertical movement and horizontal swing of the execution arm 2. The two functions of the two motors 7 are combined into one motor 7, the power is transmitted by the transmission mechanism 6, the reagent arm module and the sample arm module are driven by the pure mechanical transmission mechanism 6 to complete the switching of the three positions of sampling, sample feeding and cleaning and waste discharge, the cumbersome work of circuit maintenance is avoided, the troubleshooting efficiency of mechanical failure is far superior to that of circuit troubleshooting, and the later repair work of the equipment is facilitated.

[0052] As further provided in the embodiments of the present application, according to Figure 3 It can be known that the number of the screw nuts is two, i.e. the first screw nut 41 and the second screw nut 42, wherein: when the first screw nut 41 is driven by the transmission mechanism 6, it rotates clockwise to move the execution arm 2 upward along the vertical direction; and when the second screw nut 42 is driven by the transmission mechanism 6, it rotates counterclockwise to move the execution arm 2 downward along the vertical direction. Furthermore, the number of the spline nuts is two, i.e. the first spline nut 51 and the second spline nut 52, wherein: when the first spline nut 51 is driven by the transmission mechanism 6, it rotates clockwise to swing the execution arm 2 leftward along the horizontal direction in cooperation with the screw nut; and when the second spline nut 52 is driven by the transmission mechanism 6, it rotates counterclockwise to swing the execution arm 2 rightward along the horizontal direction in cooperation with the screw nut. Specifically, the first spline nut 51 and the first screw nut 41 in the above embodiment both rotate clockwise, and the second screw nut 42 and the second spline nut 52 both rotate counterclockwise. Since the torque direction output by the motor 7 is fixed, the purpose is to reduce the energy consumption of the motor 7 for changing the output torque, and the transmission mechanism 6 is switched under the condition that the motor 7 does not stop. The first spline nut 51 and the first screw nut 41 in the embodiment are driven to rotate clockwise, so that the execution arm 2 moves upward along the vertical direction and swings rightward along the horizontal direction; and the second screw nut 42 and the second spline nut 52 are driven to rotate counterclockwise, so that the execution arm 2 moves downward along the vertical direction and swings leftward along the horizontal direction.

[0053] In order to ensure that the rotation directions of the second screw nut 42 and the first screw nut 41 are consistent, a synchronous transmission mechanism 9 is arranged between the first spline nut 51 and the second spline nut 52, and the synchronous transmission mechanism 9 is composed of two groups of synchronous belts. One group of synchronous belts is sleeved on the synchronous wheel on the first spline nut 51, and the other group of synchronous belts is sleeved on the synchronous wheel on the second spline nut 52. The other ends of the two groups of synchronous belts are driven by a shaft, as shown in Figure 3The same, the second spline nut 52 and the first spline nut 51 are also provided with the synchronous transmission mechanism 9, and the synchronous transmission mechanism 9 is composed of two sets of synchronous belts, one set of synchronous belts is sleeved on the synchronous wheel on the second spline nut 52, and the other set of synchronous belts is sleeved on the synchronous wheel on the first spline nut 51, and the other end of the two synchronous belts is driven by the shaft rod, as shown in Figure 3

[0054] It should be noted that when either the second screw nut 42 or the first screw nut 41 in the embodiment rotates alone, the second spline nut 52 and the first spline nut 51 need to be kept in the locked state, and therefore the electromagnetic locking mechanism is provided on the synchronous transmission mechanism 9 for driving the second spline nut 52 and the first spline nut 51 to rotate, and the electromagnetic locking mechanism is used for locking / release of the first spline nut 51 and the second spline nut 52, and the electromagnetic locking mechanism can be an electric brake; or the electromagnetic iron is electrified to adsorb the iron column on the spline nut to realize locking; or the electric control type locking mechanism known to those skilled in the art.

[0055] Further, since the contact part of the execution arm 2 with the screw nut and the spline nut in the embodiment is a screw rod, when the second screw nut 42 is driven to rotate, the first screw nut 41 must also be kept synchronous, otherwise the execution arm 2 cannot be driven to move in the vertical direction, and the same, when the second spline nut 52 is driven to rotate, the first spline nut 51 must also be kept synchronous, otherwise the execution arm 2 cannot be driven to move in the horizontal direction. In the embodiment, the second screw nut 42 is driven to rotate by the second gear 422, and when the transmission mechanism 6 drives the second gear 422 to rotate, the driving direction of the second screw nut 42 driven by the second gear 422 is opposite to the output torque direction of the motor 7; similarly, the second spline nut 52 is driven to rotate by the fourth gear 522 which is installed in the axial rotation, and when the transmission mechanism 6 drives the fourth gear 522 to rotate, the second spline nut 52 driven by the fourth gear 522 is opposite to the output torque direction of the motor 7.

[0056] Therefore, when the transmission mechanism 6 drives the first screw nut 41 to rotate, the electromagnetic locking mechanism locks the second driving mechanism 5, and then the execution arm 2 moves upward in the vertical direction; when the transmission mechanism 6 drives the second screw nut 42 to rotate, the electromagnetic locking mechanism locks the second driving mechanism 5, and then the execution arm 2 moves downward in the vertical direction; when the transmission mechanism 6 drives the first screw nut 41 and the first spline nut 51, the electromagnetic locking mechanism releases the locking of the second driving mechanism 5, and then the execution arm 2 swings right in the horizontal direction; when the transmission mechanism 6 drives the second screw nut 42 and the second spline nut 52, the electromagnetic locking mechanism releases the locking of the second driving mechanism 5, and then the execution arm 2 swings left in the horizontal direction.

[0057] ​As a further provided embodiment of the present application, the transmission mechanism 6 comprises at least one switching mechanism 8, the transmission mechanism 6 is controlled by the switching mechanism 8 to drive the first driving mechanism 4 and the second driving mechanism 5 respectively. Specifically, by Figure 3 It can be seen that the first screw nut 41, the first spline nut 51, the second spline nut 52 and the second screw nut 42 are sequentially distributed from top to bottom. The fixed direction torque force output by the motor 7 is transmitted to the transmission mechanism 6, and then the transmission mechanism 6 is driven by the switching mechanism 8 to switch the output power to the first driving mechanism 4 or the first driving mechanism 4 and the second driving mechanism 5. The transmission mechanism 6 can be a reciprocating screw rod, which is driven by the motor 7 to keep rotating in the circumferential direction, and drives the transmission mechanism 6 to move up and down in the vertical direction. The transmission mechanism 6 can also be a belt transmission mechanism, the synchronizer is kept rotating by the belt transmission, and moves following the reciprocating screw rod to drive the second gear 422, the first screw nut 41, the fourth gear 522 and the first spline nut 51 synchronously. Alternatively, the transmission mechanism 6 is four sets of pulley transmission mechanisms, which drive the second gear 422, the first screw nut 41, the fourth gear 522 and the first spline nut 51 respectively, and the switching mechanism 8 is a wheel disc, which is installed with a transmission gear to transmit the output force of the motor 7 to the transmission gear, and the wheel disc is driven to rotate by the motor, and can be engaged to drive one of the four sets of pulley transmission mechanisms. Alternatively, the switching mechanism and the transmission mechanism are known to those skilled in the art.

[0058] As a further provided embodiment of the present application, as shown in Figure 5 It can be seen that the transmission mechanism 6 comprises a sleeve rod 61 moving in the vertical direction, the sleeve rod 61 is provided with a first synchronizer 62 capable of coupling with the first driving mechanism 4 and a second synchronizer 63 capable of coupling with the second driving mechanism 5. The transmission mechanism 6 further comprises a switching mechanism 8 for driving the sleeve rod 61 to move in the vertical direction to switch the first synchronizer 62 and the second synchronizer 63 between the first driving mechanism 4 and the second driving mechanism 5. Further, the transmission mechanism 6 further comprises a rhombus column 64 driven to rotate by the motor 7, and the sleeve rod 61 is slidingly arranged on the rhombus column 64. Specifically, the transmission mechanism 6 in the embodiment is the sleeve rod 61 sleeved on the rhombus column 64, and the switching mechanism 8 drives the sleeve rod 61 to slide on the rhombus column 64, and the rhombus column 64 and the motor 7 are both installed on the rack 65. Figure 4 ). Furthermore, according to the attached Figure 4 It can be seen that the number of the first synchronizer 62 and the second synchronizer 63 is two, the two first synchronizers 62 correspond to the first screw nut 41 and the second screw nut 42, and the two second synchronizers 63 correspond to the first spline nut 51 and the second spline nut 52.

[0059] Further, the fifth synchronizer 411 is fixedly installed on the first screw nut 41, the third synchronizer 511 is fixedly installed on the first spline nut 51, the sixth synchronizer 423 is fixedly installed on the second gear 422, and the fourth synchronizer 523 is fixedly installed on the fourth gear 522. In order to ensure that the rotation directions of the second screw nut 42 and the second spline nut 52 are opposite to those of the first screw nut 41 and the first spline nut 51, the first gear 421 engaged with the second gear 422 is fixedly installed on the second screw nut 42, and the third gear 521 engaged with the fourth gear 522 is fixedly installed on the second spline nut 52. When the sleeve rod 61 is driven to move vertically by the switching mechanism 8, the following cooperation is shown:

[0060] 1. The first synchronizer 62 of the first layer distributed in the vertical direction (as a reference) is engaged with the fifth synchronizer 411, thereby driving the first screw nut 41 to rotate, and the electromagnetic locking mechanism is locked to the second driving mechanism 5, so that the execution arm 2 moves upward in the vertical direction (the second synchronizer 63 of the second layer and the third synchronizer 511, the second synchronizer 63 of the third layer and the fourth synchronizer 523, and the first synchronizer 62 of the fourth layer and the sixth synchronizer 423 are all missed). Figure 4

[0061] 2. The first synchronizer 62 of the fourth layer distributed in the vertical direction (as a reference) is engaged with the sixth synchronizer 423, thereby driving the second screw nut 42 to rotate in the opposite direction, and the electromagnetic locking mechanism is locked to the second driving mechanism 5, so that the execution arm 2 moves downward in the vertical direction (the first synchronizer 62 of the first layer and the fifth synchronizer 411, the second synchronizer 63 of the second layer and the third synchronizer 511, and the second synchronizer 63 of the third layer and the fourth synchronizer 523 are all missed). Figure 4

[0062] 3. The first synchronizer 62 of the first layer and the second synchronizer 63 of the second layer distributed in the vertical direction (as a reference) are engaged with the fifth synchronizer 411 and the third synchronizer 511, thereby driving the first screw nut 41 and the first spline nut 51 to rotate in the same direction, and the electromagnetic locking mechanism is unlocked to the second driving mechanism 5, so that the execution arm 2 swings right in the horizontal direction (the second synchronizer 63 of the third layer and the fourth synchronizer 523, and the first synchronizer 62 of the fourth layer and the sixth synchronizer 423 are all missed). Figure 4

[0063] 4. The first synchronizer 62 of the fourth layer and the second synchronizer 63 of the third layer distributed in the vertical direction (as a reference) are engaged with the sixth synchronizer 423 and the fourth synchronizer 523, thereby driving the second screw nut 42 and the second spline nut 52 to rotate in the opposite direction, and the electromagnetic locking mechanism is unlocked to the second driving mechanism 5, so that the execution arm 2 swings left in the horizontal direction (the first synchronizer 62 of the first layer and the fifth synchronizer 411, the second synchronizer 63 of the second layer and the third synchronizer 511, and the first synchronizer 62 of the second layer and the sixth synchronizer 423 are all missed). Figure 4 ​​​Based on this, the second screw nut 42 and the second spline nut 52 will engage with the sixth synchronizer 423 and the fourth synchronizer 523, thereby driving the second lead screw nut 42 and the second spline nut 52 to rotate in opposite directions. The electromagnetic locking mechanism will then release the second drive mechanism 5, and the actuator arm 2 will swing to the right in the horizontal direction (the first synchronizer 62 and the fifth synchronizer 411 of the first layer, and the second synchronizer 63 and the third synchronizer 511 of the second layer will all be misaligned).

[0064] As another embodiment further provided by the present invention, such as Figure 4 and Figure 8 It is understood that the switching mechanism 8 includes a track disk 81 driven to rotate by the motor 7, and a sleeve rod 61 tangent to the end face of the track disk 81, which moves synchronously with the changes in the concavity and convexity of the end face of the track disk 81. Specifically, a sixth gear 84 is fixedly installed on the rhomboid column 64, the track disk 81 is axially rotatably mounted on the frame 65, and a fifth gear 83 is fixedly installed on the track disk 81. The fifth gear 83 and the sixth gear 84 mesh, so when the motor 7 drives the rhomboid column 64 to rotate, the fifth gear 83 drives the sixth gear 84 to rotate the track disk 81.

[0065] Furthermore, a guide sleeve 82 is fixedly installed at the end of the sleeve rod 61. A ball bearing is rotatably mounted on one side of the guide sleeve 82, and the ball bearing slides within a guide rail opened on the end face of the track plate 81 (without disengaging from the guide rail). The track plate 81 can be divided into a primary high-position sliding section 811, a secondary high-position sliding section 812, a tertiary high-position sliding section 813, and a secondary abutment section 814, specifically:

[0066] When the ball is sliding in the first-level high-position section 811, the first synchronizer 62 of the first layer (with Figure 4 Based on this, the first lead screw nut 41 will be engaged with the fifth synchronizer 411, thereby driving the first lead screw nut 41 to rotate in the same direction. The electromagnetic locking mechanism will lock the second drive mechanism 5, and the actuator arm 2 will move upward in the vertical direction (the second synchronizer 63 and the third synchronizer 511 of the second layer, the second synchronizer 63 and the fourth synchronizer 523 of the third layer, and the first synchronizer 62 and the sixth synchronizer 423 of the fourth layer will all be staggered).

[0067] When the ball is sliding in the secondary high position section 812, the first synchronizer 62 of the first layer and the second synchronizer 63 of the second layer (to Figure 4 Based on this, the first lead screw nut 41 and the first spline nut 51 will engage with the fifth synchronizer 411 and the third synchronizer 511, thereby driving the first lead screw nut 41 and the first spline nut 51 to rotate in the same direction. The electromagnetic locking mechanism will then release the second drive mechanism 5, and the actuator arm 2 will swing to the right in the horizontal direction (the second synchronizer 63 and the fourth synchronizer 523 of the third layer, as well as the first synchronizer 62 and the sixth synchronizer 423 of the fourth layer, will be staggered).

[0068] When the ball is sliding in the tertiary high position section 813, the first synchronizer 62 of the fourth layer (with Figure 4 reference) will engage the sixth synchronizer 423, thereby driving the second screw nut 42 against rotation, the electromagnetic locking mechanism will lock the second driving mechanism 5, and the execution arm 2 will move downward in the vertical direction (the first synchronizer 62 of the first layer and the fifth synchronizer 411, the second synchronizer 63 of the second layer and the third synchronizer 511, and the second synchronizer 63 of the third layer and the fourth synchronizer 523 will all be out of engagement);

[0069] When the ball is sliding in the secondary resistance section 814, the first synchronizer 62 of the fourth layer and the second synchronizer 63 of the third layer (with Figure 4 reference) will engage the sixth synchronizer 423 and the fourth synchronizer 523, thereby driving the second screw nut 42 and the second spline nut 52 against rotation, the electromagnetic locking mechanism will unlock the second driving mechanism 5, and the execution arm 2 will swing right in the horizontal direction (the first synchronizer 62 of the first layer and the fifth synchronizer 411, and the second synchronizer 63 of the second layer and the third synchronizer 511 will all be out of engagement).

[0070] Because the reagent arm module is located between the reagent disc module, the anti-pollution module, and the sample disc module, and the sample arm module is located between the sample disc module, the pollution module, and the reaction disc module, and the initial positions of the reagent arm module and the sample arm module are both in the state that the sample needle 1 is located in the pollution module, therefore, when the equipment is started, the track disc 81 rotates, the ball first slides from the tertiary high position section 813 to the primary high position section 811 (during the sliding process, the sample needle 1 remains in the stationary state, and the height and swing are maintained in the original state), slides along the primary high position section 811, the first synchronizer 62 of the first layer (with Figure 4 reference) will engage the fifth synchronizer 411, thereby driving the first screw nut 41 to rotate, the electromagnetic locking mechanism will lock the second driving mechanism 5, and the execution arm 2 will move upward in the vertical direction (the second synchronizer 63 of the second layer and the third synchronizer 511, the second synchronizer 63 of the third layer and the fourth synchronizer 523, and the first synchronizer 62 of the fourth layer and the sixth synchronizer 423 will all be out of engagement); then, when the primary high position section 811 reaches the termination position, the ball slides from the primary high position section 811 to the secondary resistance section 814 (during the sliding process, the sample needle 1 remains in the stationary state, and the height and swing are maintained in the original state), slides along the secondary resistance section 814, the first synchronizer 62 of the fourth layer and the second synchronizer 63 of the third layer (with Figure 4(Based on) will engage with the sixth synchronizer 423 and the fourth synchronizer 523, thereby driving the second lead screw nut 42 and the second spline nut 52 to rotate in the opposite direction. The electromagnetic locking mechanism will then release the second drive mechanism 5, and the actuator 2 will swing to the right in the horizontal direction (the first synchronizer 62 and the fifth synchronizer 411 of the first layer, and the second synchronizer 63 and the third synchronizer 511 of the second layer will be staggered). When it reaches the end position of the second-level high-position row section 812, the injection needle 1 corresponds to the sample tray module (at this time, the sample tray module is driven to rotate, placing the new sample below the injection needle 1); then when the secondary abutment section 814 reaches the end position, the ball slides from the secondary abutment section 814 to the third-level high-position row section 813 (during the sliding process, the injection needle 1 remains stationary, and the height and swing remain unchanged). When it reaches the end position of the third-level high-position row section 813, the fourth layer first synchronizer 62 (based on) will engage with the sixth synchronizer 423 and the fourth synchronizer 523, thereby driving the second lead screw nut 42 and the second spline nut 52 to rotate in the opposite direction. The electromagnetic locking mechanism will then release the second drive mechanism 5, and the actuator arm 2 will swing to the right in the horizontal direction (the first synchronizer 62 and the fifth synchronizer 411 of the first layer, and the second synchronizer 63 and the third synchronizer 511 of the second layer will rotate in the opposite direction). Figure 4 (Based on) will engage with the sixth synchronizer 423, thereby driving the second lead screw nut 42 to rotate in the opposite direction. The electromagnetic locking mechanism will lock the second drive mechanism 5, and the actuator 2 will move downward in the vertical direction (the first synchronizer 62 and the fifth synchronizer 411 of the first layer, the second synchronizer 63 and the third synchronizer 511 of the second layer, and the second synchronizer 63 and the fourth synchronizer 523 of the third layer will all be staggered). At this time, the injection needle 1 will take a sample; then when the third-level high-position row section 813 reaches the end position, the ball will slide from the third-level high-position row section 813 to the first-level high-position row section 811 (during the sliding process, the injection needle 1 remains stationary, and the height and swing remain the same). When it reaches the end position of the first-level high-position row section 811, the first synchronizer 62 of the first layer (based on) will engage with the sixth synchronizer 423, thereby driving the second lead screw nut 42 to rotate in the opposite direction. The electromagnetic locking mechanism will lock the second drive mechanism 5, and the actuator arm 2 will move downward in the vertical direction (the first synchronizer 62 and the fifth synchronizer 411 of the first layer, the second synchronizer 63 and the third synchronizer 511 of the second layer, the second synchronizer 63 and the fourth synchronizer 523 of the third layer will all be staggered). Figure 4 (Based on) will engage with the fifth synchronizer 411, thereby driving the first lead screw nut 41 to rotate in the same direction. The electromagnetic locking mechanism will lock the second drive mechanism 5, and the actuator 2 will move upward in the vertical direction (the second synchronizer 63 of the second layer and the third synchronizer 511, the second synchronizer 63 of the third layer and the fourth synchronizer 523, and the first synchronizer 62 of the fourth layer and the sixth synchronizer 423 will all be staggered); then when the first-level high-position row section 811 reaches the end position, the ball will slide from the first-level high-position row section 811 to the second-level high-position row section 812 (during the sliding process, the injection needle 1 remains stationary, and the height and swing remain unchanged). When it reaches the end position of the second-level high-position row section 812, the first synchronizer 62 of the first layer and the second synchronizer 63 of the second layer (based on) will engage with the fifth synchronizer 411, thereby driving the first lead screw nut 41 to rotate in the same direction. The electromagnetic locking mechanism will lock the second drive mechanism 5, and the actuator 2 will move upward in the vertical direction (the second synchronizer 63 of the second layer and the third synchronizer 511 of the third layer, and the first synchronizer 63 of the fourth layer and the sixth synchronizer 523 of the fourth layer will all be staggered). Figure 4(Based on) will engage with the fifth synchronizer 411 and the third synchronizer 511, thereby driving the first lead screw nut 41 and the first spline nut 51 to rotate in the same direction. The electromagnetic locking mechanism will then release the second drive mechanism 5, and the actuator 2 will swing to the right in the horizontal direction (the second synchronizer 63 and the fourth synchronizer 523 of the third layer, as well as the first synchronizer 62 and the sixth synchronizer 423 of the fourth layer, will be staggered), causing the injection needle 1 to swing to the sample tray module; then when the secondary high-position row section 812 reaches the end position, the ball will slide from the secondary high-position row section 812 to the tertiary high-position row section 813 (during the sliding process, the injection needle 1 remains stationary, and the height and swing remain unchanged). When it reaches the end position of the tertiary high-position row section 813, the first synchronizer 62 of the fourth layer (based on) will engage with the fifth synchronizer 411 and the third synchronizer 511, thereby driving the first lead screw nut 41 and the first spline nut 51 to rotate in the same direction. The electromagnetic locking mechanism will then release the second drive mechanism 5, and the actuator arm 2 will swing to the right in the horizontal direction (the second synchronizer 63 and the fourth synchronizer 523 of the third layer, as well as the first synchronizer 62 and the sixth synchronizer 423 of the fourth layer, will swing to the end position). Figure 4 (Based on) will engage with the sixth synchronizer 423, thereby driving the second lead screw nut 42 to rotate in the opposite direction. The electromagnetic locking mechanism will lock the second drive mechanism 5, and the actuator 2 will move downward in the vertical direction (the first synchronizer 62 and the fifth synchronizer 411 of the first layer, the second synchronizer 63 and the third synchronizer 511 of the second layer, and the second synchronizer 63 and the fourth synchronizer 523 of the third layer will all be staggered). At this time, the injection needle 1 will release liquid. After the liquid is released, when the third-level high-position row section 813 reaches the end position, the third-level high-position row section 813 slides on the first-level high-position row section 811 (during the sliding process, the injection needle 1 remains stationary, and the height and swing remain in the original state). Sliding along the first-level high-position row section 811, the first synchronizer 62 of the first layer (based on) will engage with the sixth synchronizer 423, thereby driving the second lead screw nut 42 to rotate in the opposite direction. The electromagnetic locking mechanism will lock the second drive mechanism 5, and the actuator arm 2 will move downward in the vertical direction (the first synchronizer 62 and the fifth synchronizer 411 of the first layer, the second synchronizer 63 and the third synchronizer 523 of the second layer will all be staggered). Figure 4 (Based on) will engage with the fifth synchronizer 411, thereby driving the first lead screw nut 41 to rotate in the same direction. The electromagnetic locking mechanism will lock the second drive mechanism 5, and the actuator 2 will move upward in the vertical direction (the second synchronizer 63 of the second layer and the third synchronizer 511, the second synchronizer 63 of the third layer and the fourth synchronizer 523, and the first synchronizer 62 of the fourth layer and the sixth synchronizer 423 will all be staggered); sliding along the first-level high-position row section 811, the actuator 2 will move upward in the vertical direction; then when the first-level high-position row section 811 reaches the end position, the ball slides from the first-level high-position row section 811 to the secondary abutment section 814 (during the sliding process, the injection needle 1 remains stationary, and the height and swing remain unchanged), sliding along the secondary abutment section 814, the first synchronizer 62 of the fourth layer and the second synchronizer 63 of the third layer (based on) will engage with the fifth synchronizer 411, thereby driving the first lead screw nut 41 to rotate in the same direction. The electromagnetic locking mechanism will lock the second drive mechanism 5, and the actuator 2 will move upward in the vertical direction (based on) the second synchronizer 63 of the second layer and the third synchronizer 63 of the third layer (based on) the second synchronizer 63 of the third layer and the third synchronizer 62 of the fourth layer (based on) the second synchronizer 63 of the third layer and the third synchronizer 63 ... Figure 4The sixth synchronizer 423 and the fourth synchronizer 523 are engaged, so that the second screw nut 42 and the second spline nut 52 are driven to rotate reversely, the electromagnetic locking mechanism is unlocked to the second driving mechanism 5, the execution arm 2 swings right in the horizontal direction (the first synchronizer 62 of the first layer and the fifth synchronizer 411, and the second synchronizer 63 of the second layer and the third synchronizer 511 are all disengaged), and reaches the pollution discharge module; then when the secondary resistance moving part 814 reaches the terminal position, the ball slides from the secondary resistance moving part 814 to the tertiary high-position moving part 813 (the sampling needle 1 remains in the stationary state, and the height and swing are kept unchanged), and when the tertiary high-position moving part 813 reaches the terminal position, the first synchronizer 62 of the fourth layer (with the sixth synchronizer 423 as the reference) is engaged with the sixth synchronizer 423, so that the second screw nut 42 is reversely driven to rotate, the electromagnetic locking mechanism is locked to the second driving mechanism 5, the execution arm 2 moves downward in the vertical direction (the first synchronizer 62 of the first layer and the fifth synchronizer 411, the second synchronizer 63 of the second layer and the third synchronizer 511, and the second synchronizer 63 of the third layer and the fourth synchronizer 523 are all disengaged), and the sampling needle 1 is discharged in the pollution discharge cylinder of the pollution discharge module, so that a complete cycle is completed. Figure 9 The sixth synchronizer 423 and the fourth synchronizer 523 are engaged, so that the second screw nut 42 and the second spline nut 52 are driven to rotate reversely, the electromagnetic locking mechanism is unlocked to the second driving mechanism 5, the execution arm 2 swings right in the horizontal direction (the first synchronizer 62 of the first layer and the fifth synchronizer 411, and the second synchronizer 63 of the second layer and the third synchronizer 511 are all disengaged), and reaches the pollution discharge module; then when the secondary resistance moving part 814 reaches the terminal position, the ball slides from the secondary resistance moving part 814 to the tertiary high-position moving part 813 (the sampling needle 1 remains in the stationary state, and the height and swing are kept unchanged), and when the tertiary high-position moving part 813 reaches the terminal position, the first synchronizer 62 of the fourth layer (with the sixth synchronizer 423 as the reference) is engaged with the sixth synchronizer 423, so that the second screw nut 42 is reversely driven to rotate, the electromagnetic locking mechanism is locked to the second driving mechanism 5, the execution arm 2 moves downward in the vertical direction (the first synchronizer 62 of the first layer and the fifth synchronizer 411, the second synchronizer 63 of the second layer and the third synchronizer 511, and the second synchronizer 63 of the third layer and the fourth synchronizer 523 are all disengaged), and the sampling needle 1 is discharged in the pollution discharge cylinder of the pollution discharge module, so that a complete cycle is completed.

[0071] In summary, when the operation is stopped, the sampling needle 1 remains in the state of being located in the pollution discharge module. The above-mentioned pure mechanical structure is used to switch the switching mechanism 8 and the driving mechanism 6 by using a motor 7 driving mode, and the motor 7 is not stopped and is oriented to rotate to realize that the reagent arm module is located between the reagent disc module, the reverse pollution discharge module and the sample disc module, and is switched; and the sample arm module is located between the sample disc module, the pollution discharge module and the reaction disc module, and is switched. The complicated work of circuit maintenance is avoided, the troubleshooting efficiency of mechanical failure is far superior to that of circuit troubleshooting, and the later repair work of the equipment is facilitated.

[0072] As a further embodiment of the present application, according to Figure 4 It can be known that the first synchronizer 62, the second synchronizer 63, the third synchronizer 511 and the fourth synchronizer 523 are composed of a disc body 621 and a plurality of guide rods 622 which are distributed in the circumferential direction outside the disc body 621, and the two ends of each guide rod 622 are provided with a tapered column 623. Specifically, in combination with ​ It can be known that since the tapered column 623 is arranged at the two ends of the guide rod 622, when the sleeve rod 61 moves up and down in the vertical direction, the problem of vertical coupling and tooth engagement is avoided through the guidance of the side surface of the tapered column 623.

[0073] It should be noted that the electromagnetic locking mechanism in the embodiment is controlled and driven by an electronic sensor. When the ball is about to enter and leave the secondary high position row part 814 and the secondary high position row part 812, the electronic sensor detects the signal and drives the electromagnetic locking mechanism to release the second driving mechanism 5. When the ball is about to enter and leave the primary high position row part 811 and the tertiary high position row part 813, the electronic sensor detects the signal and drives the electromagnetic locking mechanism to lock the second driving mechanism 5. The electronic sensor in the present application can be an infrared sensor, or a touch switch, or a detection electronic element known to those skilled in the art.

[0074] The above only describes some exemplary embodiments of the present application by way of illustration. It is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of the claims of the present application.

Claims

1. A bilirubin concentration detection device, comprising a reagent arm module and a sample arm module, each including an injection needle, an actuator arm, and a connector, wherein the injection needle moves synchronously with the actuator arm via the connector, characterized in that, It also includes a first drive mechanism, a second drive mechanism, a transmission mechanism, and a motor; The first drive mechanism includes a lead screw and nut, and the transmission mechanism couples the motor to the first drive mechanism and drives the lead screw and nut to rotate, so that the actuator arm moves in the vertical direction; The second drive mechanism includes a spline nut. The transmission mechanism couples the motor to the first drive mechanism and the second drive mechanism respectively and simultaneously drives the lead screw nut and the spline nut to rotate, so that the actuator arm swings in the horizontal direction. The number of spline nuts is two, namely a first spline nut and a second spline nut. in: When the first spline nut is driven by the transmission mechanism, it rotates clockwise in conjunction with the lead screw nut to make the actuator swing to the left in the horizontal direction; When the second spline nut is driven by the transmission mechanism, it rotates counterclockwise in conjunction with the lead screw nut to make the actuator arm swing to the right in the horizontal direction; A synchronous transmission mechanism is provided between the first spline nut and the second spline nut, and an electromagnetic locking mechanism is provided on the synchronous transmission mechanism. The electromagnetic locking mechanism is used to lock / release the first spline nut and the second spline nut. When either the second lead screw nut or the first lead screw nut rotates alone, the second spline nut and the first spline nut need to remain locked. Therefore, an electromagnetic locking mechanism is provided on the synchronous transmission mechanism that drives the rotation of the second spline nut and the first spline nut. The electromagnetic locking mechanism is used to lock / release the first spline nut and the second spline nut. The transmission mechanism includes at least one switching mechanism, and the transmission mechanism is controlled by the switching mechanism to drive the first drive mechanism and the second drive mechanism respectively.

2. The bilirubin concentration detection device according to claim 1, characterized in that, The number of lead screw nuts is two, namely, the first lead screw nut and the second lead screw nut, wherein: When the first lead screw nut is driven by the transmission mechanism, it rotates clockwise to move the actuator arm upward in the vertical direction; When the second lead screw nut is driven by the transmission mechanism, the actuator arm rotates counterclockwise and moves downward in the vertical direction.

3. The bilirubin concentration detection device according to claim 2, characterized in that, A synchronous transmission mechanism is provided between the first lead screw nut and the second lead screw nut.

4. The bilirubin concentration detection device according to claim 1, characterized in that, The transmission mechanism includes a sleeve rod that moves in a vertical direction, and the sleeve rod is respectively provided with a first synchronizer that can be coupled with the first drive mechanism and a second synchronizer that can be coupled with the second drive mechanism; It also includes a switching mechanism for driving the sleeve rod to move vertically so that the first synchronizer and the second synchronizer switch between the first drive mechanism and the second drive mechanism.

5. The bilirubin concentration detection device according to claim 4, characterized in that, The transmission mechanism also includes a rhomboid column driven to rotate by a motor, and the sleeve is slidably disposed on the rhomboid column.

6. The bilirubin concentration detection device according to claim 4, characterized in that, The switching mechanism includes a track disk that is driven to rotate by a motor. The sleeve is tangent to the end face of the track disk and moves synchronously with the changes in the concavity and convexity of the end face of the track disk.

7. The bilirubin concentration detection device according to claim 4, characterized in that, Both the first synchronizer and the second synchronizer consist of a disk and guide rods arranged in a circumferential array on the outside of the disk, with a conical column at each end of the guide rod.

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