Sample analyzer and gripper mechanism

Abstract

The utility model discloses a sample analyzer and a gripper mechanism, comprising a clamping jaw assembly and a driving assembly, the driving assembly is used for driving the clamping jaw assembly to grab a reaction cup; and the vibration assembly is arranged on one side of the clamping jaw assembly and is used for uniformly mixing the reaction liquid in the reaction cup through vibration. According to the utility model, the vibration assembly is arranged on one side of the clamping jaw assembly and drives the reaction cup to shake, so that reaction liquid in the reaction cup is uniformly mixed; the stirring device is simple in structure, compared with a uniform stirring and mixing mode, cross contamination caused by stirring of the stirring needle among different reaction liquids is avoided, the cleaning process of the stirring needle is omitted, the instrument cost is effectively reduced, and the operation speed of the instrument is increased.

Description

Technical Field

[0001] This utility model relates to the field of medical testing, specifically to a sample analyzer and a gripper mechanism. Background Technology

[0002] Existing sample analyzers use gripper mechanisms with limited functionality, complex structures, large sizes, and relatively slow operating speeds. Furthermore, in current technologies, mixing of the reaction solution occurs after the reaction vessel is placed in its position, using a stirring pin. This can lead to a risk of cross-contamination when the stirring pin is agitated between different reaction solutions. Summary of the Invention

[0003] This utility model discloses a sample analyzer and a gripper mechanism to solve the problem of cross-contamination caused by stirring of reaction liquid in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A gripper mechanism, comprising:

[0006] A gripper assembly and a drive assembly, wherein the drive assembly is used to drive the gripper assembly to grip the reaction cup;

[0007] A vibration component is disposed on one side of the gripper assembly to mix the reaction liquid in the reaction cup by vibration.

[0008] Furthermore, the gripper assembly includes a gripper arm, a left gripper finger, and a right gripper finger; the left gripper finger and the right gripper finger are rotatably mounted on both sides of the gripper arm; the left gripper finger and the right gripper finger are connected by a spring.

[0009] Furthermore, the gripper arm is mounted on the drive assembly via a rubber pad.

[0010] Furthermore, the vibration assembly includes a vibration motor and an eccentric wheel; the vibration motor is used to drive the eccentric wheel to rotate.

[0011] Furthermore, it also includes a guide component for guiding and positioning the gripper assembly during operation.

[0012] Furthermore, the guide assembly includes a guide member disposed on the gripper assembly and a positioning post disposed on one side of the gripper assembly; the guide member is provided with a positioning hole adapted to the positioning post.

[0013] Furthermore, the driving component includes:

[0014] The first conveying mechanism is used to drive the gripper assembly to move back and forth in the horizontal direction. The first conveying mechanism is a second-order double-stroke conveying mechanism.

[0015] The second conveying mechanism is used to drive the gripper assembly to move back and forth in the vertical direction;

[0016] The first conveying mechanism is mounted on the fixed plate, and the second conveying mechanism is mounted on the first conveying mechanism.

[0017] Furthermore, the first conveying mechanism includes a first motor, a first conveyor belt, a second conveyor belt, a first pulley, a second pulley, a third pulley, a fourth pulley, a first guide rail, a second guide rail, a first fixed frame, and a second fixed frame; the first conveyor belt is driven and installed between the first pulley and the second pulley; the first motor is driven and connected to the first conveyor belt to drive the first conveyor belt to move between the first pulley and the second pulley; the first guide rail is installed on one side of the first conveyor belt; the first fixed frame is slidably installed on the first guide rail and fixedly connected to the first conveyor belt; the first motor, the first pulley, and the second pulley are all fixedly installed on a fixed plate; the third pulley, the fourth pulley, and the second guide rail are fixedly installed on the first fixed frame; the second conveyor belt is driven and installed between the third pulley and the fourth pulley; the second fixed frame is slidably installed on the second guide rail and fixedly connected to one side of the second conveyor belt; the other side of the second conveyor belt is fixedly connected to the fixed plate.

[0018] Furthermore, the second conveying mechanism is mounted on the second fixed frame and includes a second motor, a third conveyor belt, a third guide rail, a fifth pulley, a sixth pulley, a third fixed frame, and a fourth fixed frame; the third fixed frame is fixedly mounted on the second fixed frame; the second motor, the third guide rail, the fifth pulley, and the sixth pulley are fixedly mounted on the third fixed frame; the third conveyor belt is driven between the fifth pulley and the sixth pulley; the third guide rail is vertically mounted on one side of the third conveyor belt; the second motor is driven and connected to the fifth pulley to drive the third conveyor belt to move between the fifth pulley and the sixth pulley; the fourth fixed frame is slidably mounted on the third guide rail and fixedly connected to the third conveyor belt; the gripper assembly is fixedly mounted on the fourth fixed frame.

[0019] A sample analyzer includes the gripper mechanism described above.

[0020] This utility model adopts the above technical solution and has the following advantages:

[0021] This invention features a vibration component on one side of the gripper assembly, which vibrates the reaction cup to mix the reaction liquid inside. The invention has a simple structure and, compared to traditional stirring methods, avoids cross-contamination caused by stirring between different reaction liquids, eliminates the need for cleaning the stirring needle, effectively reduces instrument costs, and increases instrument operating speed. Attached Figure Description

[0022] Figure 1 This is a structural diagram of the gripper mechanism of this utility model;

[0023] Figure 2 This is a structural diagram of the gripper assembly;

[0024] Figure 3 The structure of the first conveying mechanism of this utility model Figure 1 ;

[0025] Figure 4 The structure of the first conveying mechanism of this utility model Figure 2 ;

[0026] Figure 5 This is a structural diagram of the second conveying mechanism of this utility model.

[0027] Reference numerals: 1-Gripper assembly; 2-Drive assembly; 3-Vibration assembly; 4-Gripper arm; 5-Left gripper finger; 6-Right gripper finger; 7-Spring; 8-Guide component; 9-Positioning post; 10-Positioning hole; 11-Fixing plate; 12-First motor; 13-First conveyor belt; 14-Second conveyor belt; 15-First pulley; 16-Second pulley; 17-Third pulley; 18-Fourth pulley; 19-First guide rail; 20-Second guide rail; 21-First fixing frame; 22-Second fixing frame; 23-Second motor; 24-Third conveyor belt; 25-Third guide rail; 26-Fifth pulley; 27-Sixth pulley; 28-Third fixing frame; 29-Fourth fixing frame; 30-Vibration motor; 31-Eccentric wheel. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] like Figure 1 As shown, a gripper mechanism includes: a gripper assembly 1 and a drive assembly 2, wherein the drive assembly 2 is used to drive the gripper assembly 1 to grip a reaction cup; and a vibration assembly 3, which is disposed on one side of the gripper assembly 1 to mix the reaction liquid in the reaction cup by vibration.

[0030] This invention uses a vibration component 3 on one side of the gripper assembly 1 to vibrate the reaction cup, thereby mixing the reaction liquid inside the reaction cup. This invention has a simple structure and, compared with the stirring method, avoids cross-contamination caused by stirring between different reaction liquids with the stirring needle. It also eliminates the cleaning process of the stirring needle, effectively reducing the cost of the instrument and improving the operating speed of the instrument.

[0031] like Figure 2 As shown, the gripper assembly 1 includes a gripper arm 4, a left gripper finger 5, and a right gripper finger 6; the left gripper finger 5 and the right gripper finger 6 are rotatably mounted on both sides of the gripper arm 4; the left and right gripper fingers are connected by a spring 7.

[0032] The extension of spring 7 allows gripper assembly 1 to adapt to reaction cups of different diameters, enabling the gripping of reaction cups of varying diameters. It is understood that after gripper assembly 1 carries the reaction cup to the reaction cup position, the reaction cup can be released by moving gripper assembly 1 to one side of the reaction cup position, as the reaction cup position obstructs the reaction cup.

[0033] To prevent the gripper assembly 1 from shifting or tilting during operation, the gripper mechanism of this utility model also includes a guide assembly for guiding and positioning the gripper assembly 1 during operation.

[0034] like Figure 2 , Figure 3 As shown, the guide assembly includes a guide member 8 disposed on the gripper assembly 1 and a positioning post 9 disposed on one side of the gripper assembly 1; the guide member 8 is provided with a positioning hole 10 adapted to the positioning post 9.

[0035] When the drive assembly 2 carries the gripper assembly 1 up and down, the positioning post 9 can extend into the positioning hole 10, so that the gripper assembly 1 can move up and down along the positioning post 9, thus avoiding positional displacement of the gripper assembly 1 when it moves up and down.

[0036] The drive component 2 includes: a first transmission mechanism for driving the gripper assembly 1 to move back and forth in the horizontal direction; and a second transmission mechanism for driving the gripper assembly 1 to move back and forth in the vertical direction; the first transmission mechanism is a second-order double-stroke transmission mechanism.

[0037] This invention employs a double-stroke transmission structure in the horizontal direction, which can effectively reduce the inherent length of the mechanism and increase the travel speed at the end of the device under the same stroke, thereby increasing the overall operating speed of the device.

[0038] Furthermore, the present invention also includes a fixing plate 11, on which the first conveying mechanism is mounted; and on which the second conveying mechanism is mounted.

[0039] like Figure 3 , Figure 4As shown, the first conveying mechanism includes a first motor 12, a first conveyor belt 13, a second conveyor belt 14, a first pulley 15, a second pulley 16, a third pulley 17, a fourth pulley 18, a first guide rail 19, a second guide rail 20, a first fixed frame 21, and a second fixed frame 22. The first conveyor belt 13 is driven and installed between the first pulley 15 and the second pulley 16. The first motor 12 is driven and connected to the first conveyor belt 13 to drive the first conveyor belt 13 to move between the first pulley 15 and the second pulley 16. The first guide rail 19 is installed on one side of the first conveyor belt 13. The first fixed frame 21 is slidably installed on the first guide rail 19 and fixedly connected to the first conveyor belt 13. The first motor 12, the first pulley 15, and the second pulley 16 are all fixedly installed on the fixed plate 11. The first motor 12 drives the first conveyor belt 13 to move, thereby driving the first fixed frame 21 to move back and forth along the first guide rail 19.

[0040] The third pulley 17, the fourth pulley 18 and the second guide rail 20 are fixedly installed on the first fixed frame 21; the second conveyor belt 14 is driven between the third pulley 17 and the fourth pulley 18; the second fixed frame 22 is slidably installed on the second guide rail 20 and fixedly connected to one side of the second conveyor belt 14, and the other side of the second conveyor belt 14 is fixedly connected to the fixed plate 11.

[0041] The first transmission mechanism of this utility model adopts a double-stroke transmission structure, which can effectively increase the stroke of the second fixed frame, improve the horizontal movement speed of the second fixed frame, and thus improve the working efficiency of the entire device.

[0042] like Figure 5 As shown, the second conveying mechanism is mounted on the second fixed frame 22 and includes a second motor 23, a third conveyor belt 24, a third guide rail 25, a fifth pulley 26, a sixth pulley 27, a third fixed frame 28, and a fourth fixed frame 29. The third fixed frame 28 is fixedly mounted on the second fixed frame 22. The second motor 23, the third guide rail 25, the fifth pulley 26, and the sixth pulley 27 are fixedly mounted on the third fixed frame 28. The third conveyor belt 24 is driven between the fifth pulley 26 and the sixth pulley 27. The third guide rail 25 is vertically mounted on one side of the third conveyor belt 24. The second motor 23 is driven by the fifth pulley 26 to drive the third conveyor belt 24 to move between the fifth pulley 26 and the sixth pulley 27. The fourth fixed frame 29 is slidably mounted on the third guide rail 25 and is fixedly connected to the third conveyor belt 24.

[0043] The gripper assembly 1 of this utility model is fixedly installed on the fourth fixed frame 29. The fourth fixed frame 29 is driven by the second motor 23 to move up and down along the third guide rail 25, thereby driving the gripper assembly 1 to move up and down.

[0044] The vibration component 3 of this utility model is installed on the gripper arm 4 of the gripper assembly 1. The vibration component 3 includes a vibration motor 30 and an eccentric wheel 31. The vibration motor 30 drives the eccentric wheel 31 to rotate. The eccentric rotation of the eccentric wheel 31 causes the gripper arm 4 to vibrate, which in turn causes the reaction cup on the gripper assembly 1 to vibrate, thus completing the mixing of the reaction liquid.

[0045] Furthermore, the positioning column 9 is fixedly installed on the second fixed frame 22; the gripper arm 4 is fixedly installed on the fourth fixed frame 29 by means of a rubber pad; the rubber pad is a double-threaded standard rubber pad, and an adjustment plate is provided to prevent the gripper from tilting due to the force on the rubber.

[0046] The gripper assembly and the fourth fixing frame of this utility model are connected by flexible rubber, which facilitates the transmission of vibration from the vibration motor and improves the reliability and safety of the device; springs are used to tighten the left and right gripper fingers to prevent the cup from falling and improve the reliability during transportation and mixing.

[0047] This utility model also discloses a sample analyzer, including the gripper mechanism described above.

[0048] This utility model of sample analyzer can save space. The gripper mechanism adopts a double-stroke transmission, which can improve the operating speed of the sample analyzer, optimize the structural space, and reduce production costs.

[0049] The above are merely embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model shall be included within the scope of the claims of this utility model pending approval.

Claims

1. A gripper mechanism, characterized in that, include: A gripper assembly and a drive assembly, wherein the drive assembly is used to drive the gripper assembly to grip the reaction cup; A vibration component is disposed on one side of the gripper assembly to mix the reaction liquid in the reaction cup by vibration. The vibration assembly includes a vibration motor and an eccentric wheel; The vibration motor is used to drive the eccentric wheel to rotate; The driving component includes: The first conveying mechanism is used to drive the gripper assembly to move back and forth in the horizontal direction. The first conveying mechanism is a second-order double-stroke conveying mechanism. The second conveying mechanism is used to drive the gripper assembly to move back and forth in the vertical direction; The first conveying mechanism is mounted on the fixed plate; the second conveying mechanism is mounted on the first conveying mechanism. The first conveying mechanism includes a first motor, a first conveyor belt, a second conveyor belt, a first pulley, a second pulley, a third pulley, a fourth pulley, a first guide rail, a second guide rail, a first fixed frame, and a second fixed frame. The first conveyor belt is driven and installed between the first pulley and the second pulley. The first motor is driven and connected to the first conveyor belt to drive the first conveyor belt to move between the first pulley and the second pulley. The first guide rail is installed on one side of the first conveyor belt. The first fixed frame is slidably installed on the first guide rail and fixedly connected to the first conveyor belt. The first motor, the first pulley, and the second pulley are all fixedly installed on a fixed plate. The third pulley, the fourth pulley, and the second guide rail are fixedly installed on the first fixed frame. The second conveyor belt is driven and installed between the third pulley and the fourth pulley. The second fixed frame is slidably installed on the second guide rail and fixedly connected to one side of the second conveyor belt. The other side of the second conveyor belt is fixedly connected to the fixed plate. The second conveying mechanism is mounted on a second fixed frame and includes a second motor, a third conveyor belt, a third guide rail, a fifth pulley, a sixth pulley, a third fixed frame, and a fourth fixed frame. The third fixed frame is fixedly mounted on the second fixed frame. The second motor, the third guide rail, the fifth pulley, and the sixth pulley are fixedly mounted on the third fixed frame. The third conveyor belt is driven between the fifth pulley and the sixth pulley. The third guide rail is vertically mounted on one side of the third conveyor belt. The second motor is driven by the fifth pulley and is used to drive the third conveyor belt to move between the fifth pulley and the sixth pulley. The fourth fixed frame is slidably mounted on the third guide rail and is fixedly connected to the third conveyor belt. The gripper assembly is fixedly mounted on the fourth fixed frame.

2. The gripper mechanism according to claim 1, characterized in that, The gripper assembly includes a gripper arm, a left gripper finger, and a right gripper finger; the left gripper finger and the right gripper finger are rotatably mounted on both sides of the gripper arm; the left gripper finger and the right gripper finger are connected by a spring.

3. A gripper mechanism according to claim 2, characterized in that, The gripper arm is mounted on the drive assembly via a rubber pad.

4. A gripper mechanism according to claim 1, characterized in that, It also includes a guide component for guiding and positioning the gripper assembly during operation.

5. A gripper mechanism according to claim 4, characterized in that, The guide assembly includes a guide member disposed on the gripper assembly and a positioning post disposed on one side of the gripper assembly; the guide member is provided with a positioning hole adapted to the positioning post.

6. A sample analyzer, characterized in that, Includes the gripper mechanism as described in any one of claims 1-5.

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