Biochemical immune stirring vertical anti-collision structure and control method

Abstract

The invention relates to the technical field of in-vitro diagnosis, in particular to a stirring vertical anti-collision structure for biochemical immunization and a control method.The stirring vertical anti-collision structure comprises a stirring rod, a coupler, a stirring motor, a stirring arm, a spline shaft, a base, a rotating assembly and a lifting assembly, and the rotating assembly comprises a rotating motor, a first synchronous wheel, a first synchronous belt, a code disc and a photoelectric coupler; the vertical anti-collision structure is mainly used for prevention, the motion interval of the stirring rod is controlled through the coded disc and the photoelectric coupler, and meanwhile, the position of the stirring rod is identified and whether the stirring rod can descend or not is judged by controlling the step number of the rotating motor, so that the stirring rod is prevented from falling down when manual operation errors or instrument abnormity occurs in the testing process. The stirring rod continuously descends to generate collision, so that the anti-collision function is realized, the damage to the stirring rod can be effectively prevented, the user experience is improved, the maintenance and use cost of an instrument is reduced, and the problem that the high maintenance cost of the instrument cannot be completely solved by a stirring anti-collision mechanism of an existing stirring device is solved.

Description

Technical Field

[0001] The invention relates to the technical field of in vitro diagnosis, and in particular to a biochemical immunology stirring vertical anti-collision structure and a control method. Background Art

[0002] At present, the reaction cup samples of existing biochemical immunoassay analyzers basically need to be stirred and mixed before testing so that the samples meet the processing requirements before testing. Therefore, the stirring device is one of the important components of the fully automatic biochemical analyzer. When working, the stirring rod is driven to rotate at high speed to fully mix the reaction solution containing various different components such as samples and reagents to make the reaction more complete.

[0003] In order to avoid cross contamination, the stirring rod needs to be cleaned after stirring in order to carry out the next stirring cycle. Due to the small size of the reaction cup, the diameter of the matching stirring paddle is thin, which is difficult to process and has a high cost. Most of the existing stirring devices have a stirring paddle directly connected to the motor output shaft, and the motor is fixedly installed on the bracket, and basically has no descending anti-collision function. During the test process, if there is a human operating error or instrument failure, the stirring device will continue to descend in a non-working position to perform mixing or rod cleaning actions, and collide with surrounding parts, which will cause damage to the stirring rod and the collided parts, thereby affecting the normal operation of the instrument and user experience, and increasing the maintenance and use costs of the instrument.

[0004] In order to solve the problem of stirring anti-collision, most mainstream instruments on the market currently use an anti-collision structure similar to that of the sample injection needle, that is, spring parts are added in the vertical direction, and signal devices such as photoelectric couplers are used. When the stirring rod hits an object during the descent process, the stirring rod is lifted to trigger a signal, and then an alarm or shutdown is triggered. This type of solution can solve the problem of thick stirring rods, and there is still a risk of damage to the stirring blades after multiple collisions, thereby affecting the normal test results of the instrument. However, most instruments have small reaction cups, thin diameter stirring paddles, and mirror-polished surfaces. There is a high risk of direct deformation or damage after hitting an object, which may affect the test results of the instrument at the least, or be directly damaged and scrapped at the worst. The problem of high maintenance costs of the instrument cannot be completely solved. Summary of the invention

[0005] The purpose of the present invention is to provide a biochemical immunology stirring vertical anti-collision structure and control method, aiming to solve the problem that the stirring anti-collision mechanism of the existing stirring device cannot completely solve the high maintenance cost problem of the instrument.

[0006] To achieve the above-mentioned objectives, in a first aspect, the present invention provides a biochemical immunology stirring vertical anti-collision structure, comprising a stirring rod, a coupling, a stirring motor, a stirring arm, a spline shaft, a base, a rotating assembly and a lifting assembly, wherein the stirring motor is fixedly connected to the stirring arm and passes through the stirring arm, the coupling is fixedly connected to the output end of the stirring motor and is located on one side of the stirring motor, the stirring rod is detachably connected to the coupling and is located on the side of the coupling away from the stirring motor, the spline shaft is fixedly connected to the stirring arm and is located at the bottom of the stirring arm, and the rotating assembly is arranged at On one side of the spline shaft, the base is arranged on one side of the rotating component, and the lifting component is arranged on one side of the base; the rotating component includes a rotating motor, a first synchronous wheel, a first synchronous belt, a code disc and a photoelectric coupler, the rotating motor is fixedly connected to the base and passes through the base, the code disc is arranged on the side of the base close to the spline shaft, the first synchronous wheel is respectively arranged on the code disc and one side of the output end of the rotating motor, the first synchronous belt is arranged on the outside of the first synchronous wheel, and the photoelectric coupler is fixedly connected to the base and is located on the side of the base close to the code disc.

[0007] The code disc has a first disc gap, a second disc gap and a notch, the notch is located on one side of the code disc, the first disc gap is located on the side of the code disc close to the notch, and the second disc gap is located on the side of the first disc gap away from the notch.

[0008] Among them, the lifting assembly includes a lifting motor, a second synchronous wheel, a second synchronous belt and a spline. The lifting motor is fixedly connected to the base and is located on one side of the base. The second synchronous wheel is fixedly connected to the output end of the lifting motor and is located on one side of the lifting motor. The second synchronous belt is arranged on the outside of the second synchronous wheel. The spline has a fixed seat and a belt clamp. The belt clamp is located on one side of the fixed seat. The fixed seat is located at the bottom of the spline. The belt clamp is connected to the second synchronous belt.

[0009] In a second aspect, the present invention further provides a biochemical immune stirring vertical anti-collision structure control method, which is applied to a biochemical immune stirring vertical anti-collision structure as described in the first aspect above, and is characterized in that it includes the following steps:

[0010] The code disk rotates counterclockwise, and when the photoelectric coupler recognizes the edge of the notch, it continues to move counterclockwise for a fixed number of steps. After the system determines that this position is indeed the notch position, it moves clockwise for a fixed number of steps to recognize the first disk gap, the rotating motor stops, and the photoelectric coupler feeds back the position information to the instrument control system;

[0011] The instrument control system counts the number of clockwise movement steps of the rotating motor and compares it with a preset value to obtain a comparison result;

[0012] Based on the comparison result, the horizontal position of the stirring rod is judged, and based on the horizontal position of the stirring rod, whether the stirring rod can be lifted or lowered is judged to obtain a judgment result. If the judgment result shows that the lifting or lowering action can be performed, the instrument control system issues an instruction to control the lifting and lowering of the lifting component, and controls the stirring rod to perform a stirring operation. If the judgment result shows that the lifting or lowering action cannot be performed, an alarm prompt is issued;

[0013] If the cleaning command is executed, the rotating motor continues to rotate clockwise, and counts with the first disc seam position as the base point. After the second disc seam is identified, the rotating motor stops, and the photoelectric coupler feeds back the position information to the instrument control system. The instrument control system counts the movement steps of the rotating motor and compares it with the preset value to obtain a comparison result;

[0014] The horizontal position of the stirring rod is judged based on the comparison result, and whether the stirring rod can be lifted or lowered is judged based on the horizontal position of the stirring rod to obtain a judgment result. If the judgment result shows that the lifting or lowering action can be performed, the instrument control system issues an instruction to control the lifting and lowering of the lifting component, and controls the stirring rod to perform a cleaning operation. If the judgment result shows that the lifting or lowering action cannot be performed, an alarm prompt is issued.

[0015] The present invention provides a biochemical immunology stirring vertical anti-collision structure, the coupling is used to connect the stirring rod and the stirring motor, the stirring motor is used to drive the stirring rod to rotate or clean, the stirring arm provides installation and support conditions for the stirring motor, the spline shaft is used to fix the stirring arm on the base, the base provides support for the rotating assembly, the lifting assembly and the spline shaft, the rotating motor is used to drive the first synchronous wheel to rotate, the first synchronous wheel drives the code disk through the first synchronous belt, thereby driving the spline shaft to rotate, and then driving the stirring arm to rotate, changing the level of the stirring rod The position of the stirring rod is controlled by the code disk and the photoelectric coupler to control the movement range of the stirring rod. At the same time, the number of steps of the rotating motor is controlled to identify the position of the stirring rod and determine whether the stirring rod can descend to prevent the stirring rod from continuing to descend and causing collision when there is human error in operation or abnormality of the instrument during the test. The anti-collision function is realized and can effectively prevent the damage of the stirring rod, thereby improving the user experience and reducing the maintenance and use costs of the instrument. The stirring anti-collision mechanism of the existing stirring device cannot completely solve the problem of high maintenance costs of the instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The present invention is a schematic structural diagram of a biochemical immune stirring vertical anti-collision structure.

[0018] Figure 2 It is a schematic diagram of the code disc and the first synchronization wheel.

[0019] Figure 3 It is a schematic diagram of the code disk moving to the initial position.

[0020] Figure 4 It is a schematic diagram of the code disc moving to the cleaning position.

[0021] Figure 5 It is a structural schematic diagram of another direction of a biochemical immune stirring vertical anti-collision structure provided by the present invention.

[0022] Figure 6 The present invention provides a control flow chart of a biochemical immune stirring vertical anti-collision structure.

[0023] Figure 7 It is a schematic diagram of a biochemical immune stirring vertical anti-collision structure control method provided by the present invention.

[0024] In the figure: 1-stirring rod, 2-coupling, 3-stirring motor, 4-stirring arm, 5-spline shaft, 6-base, 7-rotating assembly, 8-lifting assembly, 71-rotating motor, 72-first synchronous wheel, 73-first synchronous belt, 74-code disk, 75-photoelectric coupler, 741-first disk gap, 742-second disk gap, 743-notch, 81-lifting motor, 82-second synchronous wheel, 83-second synchronous belt, 84-spline, 85-fixed seat, 86-belt clamp. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] See also Figures 1 to 5In the first aspect, the present invention provides a biochemical immune stirring vertical anti-collision structure, comprising a stirring rod 1, a coupling 2, a stirring motor 3, a stirring arm 4, a spline shaft 5, a base 6, a rotating component 7 and a lifting component 8, wherein the stirring motor 3 is fixedly connected to the stirring arm 4 and passes through the stirring arm 4, the coupling 2 is fixedly connected to the output end of the stirring motor 3 and is located on one side of the stirring motor 3, the stirring rod 1 is detachably connected to the coupling 2 and is located on the side of the coupling 2 away from the stirring motor 3, the spline shaft 5 is fixedly connected to the stirring arm 4 and is located at the bottom of the stirring arm 4, the rotating component 7 is arranged on one side of the spline shaft 5, and the base 6 is arranged on one side of the rotating component 7, and the lifting component 8 is arranged on one side of the base 6; the rotating component 7 includes a rotating motor 71, a first synchronous wheel 72, a first synchronous belt 73, a code disc 74 and a photoelectric coupler 75, the rotating motor 71 is fixedly connected to the base 6 and passes through the base 6, the code disc 74 is arranged on the side of the base 6 close to the spline shaft 5, the first synchronous wheel 72 is respectively arranged on one side of the code disc 74 and the output end of the rotating motor 71, the first synchronous belt 73 is arranged on the outside of the first synchronous wheel 72, and the photoelectric coupler 75 is fixedly connected to the base 6 and is located on the side of the base 6 close to the code disc 74.

[0027] In the embodiment of the present invention, the coupling 2 is used to connect the stirring rod 1 and the stirring motor 3, the stirring motor 3 is used to drive the stirring rod 1 to rotate or clean, the stirring arm 4 provides installation and support conditions for the stirring motor 3, the spline shaft 5 is used to fix the stirring arm 4 on the base 6, the base 6 provides support for the rotating assembly 7, the lifting assembly 8 and the spline shaft 5, the rotating motor 71 is used to drive the first synchronous wheel 72 to rotate, the first synchronous wheel 72 drives the code disk 74 through the first synchronous belt 73, thereby driving the spline shaft 5 to rotate, and then driving the stirring arm 4 to rotate, changing the stirring rod 1 In the horizontal position, the lifting assembly 8 is set to lift the stirring rod 1. The vertical anti-collision structure is mainly for prevention. The movement range of the stirring rod 1 is controlled by the code disk 74 and the photoelectric coupler 75. At the same time, the position of the stirring rod 1 is identified and the number of steps of the rotating motor 71 is controlled to determine whether the stirring rod 1 can be lowered. This is to prevent the stirring rod 1 from continuing to descend and causing a collision when there is an operation error or an instrument abnormality during the test. The anti-collision function is realized, which can effectively prevent the damage of the stirring rod 1, thereby improving the user experience, reducing the maintenance and use costs of the instrument, and solving the problem that the stirring anti-collision mechanism of the existing stirring device cannot completely solve the problem of high maintenance costs of the instrument.

[0028] Furthermore, the code disc 74 has a first disc gap 741, a second disc gap 742 and a notch 743, the notch 743 is located on one side of the code disc 74, the first disc gap 741 is located on the side of the code disc 74 close to the notch 743, and the second disc gap 742 is located on the side of the first disc gap 741 away from the notch 743.

[0029] In an embodiment of the present invention, the code disk 74 is provided with the first disk gap 741, the second disk gap 742 and the notch 743. The edge angle between the first disk gap 741 close to the notch 743 and the notch 743 is a fixed value (the specific value is determined by the control system and layout design), which is used to determine the initial position of stirring (that is, the stirring position of the stirring rod 1 on the reaction disk). The angle between the first disk gap 741 and the second disk gap 742 is used to constrain the movement range of the stirring arm 4. The second disk gap 742 can also be used to determine the cleaning position of the stirring rod 1. The positional relationship between the notch 743 and the first disk gap 741 and the second disk gap 742 is achieved through cooperation with the photoelectric coupler 75.

[0030] Furthermore, the lifting assembly 8 includes a lifting motor 81, a second synchronous wheel 82, a second synchronous belt 83 and a spline 84. The lifting motor 81 is fixedly connected to the base 6 and is located on one side of the base 6. The second synchronous wheel 82 is fixedly connected to the output end of the lifting motor 81 and is located on one side of the lifting motor 81. The second synchronous belt 83 is arranged on the outside of the second synchronous wheel 82. The spline 84 has a fixed seat 85 and a belt clamp 86. The belt clamp 86 is located on one side of the fixed seat 85. The fixed seat 85 is located at the bottom of the spline 84. The belt clamp 86 is connected to the second synchronous belt 83.

[0031] In an embodiment of the present invention, the lifting motor 81 is used to drive the second synchronous wheel 82. The rotation of the second synchronous wheel 82 drives the second synchronous belt 83 to rotate. A fixed seat 85 is installed at the lower end of the spline 84. The fixed seat 85 is connected to the second synchronous belt 83 through the belt clamp 86. The movement of the second synchronous belt 83 drives the spline 84 to perform lifting and lowering movements. The stirring arm 4 is installed at the top of the spline 84 and performs lifting and lowering movements along with the spline 84.

[0032] See also Figure 6 to Figure 7 In a second aspect, the present invention further provides a biochemical immune stirring vertical anti-collision structure control method, which is applied to a biochemical immune stirring vertical anti-collision structure as described in the first aspect above, and is characterized in that it includes the following steps:

[0033] S1: The code disk 74 rotates counterclockwise. When the photoelectric coupler 75 recognizes the edge of the notch 743, it continues to move counterclockwise for a fixed number of steps. After the system determines that this position is indeed the position of the notch 743, it moves clockwise for a fixed number of steps to recognize the first disk gap 741. The rotating motor 71 stops, and the photoelectric coupler 75 feeds back the position information to the instrument control system.

[0034] S2 The instrument control system counts the number of clockwise movement steps of the rotating motor 71 and compares it with a preset value to obtain a comparison result;

[0035] S3: judging the horizontal position of the stirring rod 1 based on the comparison result, and judging whether the stirring rod 1 can be lifted or lowered based on the horizontal position of the stirring rod 1, and obtaining a judgment result; if the judgment result shows that the stirring rod 1 can be lifted or lowered, the instrument control system issues an instruction to control the lifting component 8 to lift and lower, and controls the stirring rod 1 to perform a stirring operation; if the judgment result shows that the stirring rod 1 cannot be lifted or lowered, an alarm is issued;

[0036] If the cleaning command is executed in step S4, the rotating motor 71 continues to rotate clockwise, and counts based on the position of the first disc slit 741. After the second disc slit 742 is identified, the rotating motor 71 stops, and the photoelectric coupler 75 feeds back the position information to the instrument control system. The instrument control system counts the movement steps of the rotating motor 71 and compares it with the preset value to obtain a comparison result.

[0037] S5 determines the horizontal position of the stirring rod 1 based on the comparison result, and determines whether the stirring rod 1 can be lifted or lowered based on the horizontal position of the stirring rod 1 to obtain a judgment result. If the judgment result shows that the lifting or lowering action can be performed, the instrument control system sends an instruction to control the lifting and lowering of the lifting component 8, and controls the stirring rod 1 to perform a cleaning operation. If the judgment result shows that the lifting or lowering action cannot be performed, an alarm prompt is issued.

[0038] The above disclosure is only a preferred embodiment of a biochemical immune stirring vertical anti-collision structure and control method of the present invention. Of course, this cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A biochemical immune stirring vertical anti-collision structure, characterized in that: It includes a stirring rod, a coupling, a stirring motor, a stirring arm, a spline shaft, a base, a rotating assembly and a lifting assembly, wherein the stirring motor is fixedly connected to the stirring arm and passes through the stirring arm, the coupling is fixedly connected to the output end of the stirring motor and is located at one side of the stirring motor, the stirring rod is detachably connected to the coupling and is located at the side of the coupling away from the stirring motor, the spline shaft is fixedly connected to the stirring arm and is located at the bottom of the stirring arm, the rotating assembly is arranged at one side of the spline shaft, the base is arranged at one side of the rotating assembly, and the lifting assembly is arranged at one side of the base; The rotating assembly includes a rotating motor, a first synchronous wheel, a first synchronous belt, a code disc and a photoelectric coupler. The rotating motor is fixedly connected to the base and passes through the base. The code disc is arranged on the side of the base close to the spline shaft. The first synchronous wheel is respectively arranged on the code disc and one side of the output end of the rotating motor. The first synchronous belt is arranged on the outside of the first synchronous wheel. The photoelectric coupler is fixedly connected to the base and is located on the side of the base close to the code disc.

2. A biochemical immune stirring vertical anti-collision structure as claimed in claim 1, characterized in that: The code disc has a first disc gap, a second disc gap and a notch, the notch is located at one side of the code disc, the first disc gap is located at a side of the code disc close to the notch, and the second disc gap is located at a side of the first disc gap away from the notch.

3. A biochemical immune stirring vertical anti-collision structure as claimed in claim 1, characterized in that: The lifting assembly includes a lifting motor, a second synchronous wheel, a second synchronous belt and a spline. The lifting motor is fixedly connected to the base and is located on one side of the base. The second synchronous wheel is fixedly connected to the output end of the lifting motor and is located on one side of the lifting motor. The second synchronous belt is arranged on the outside of the second synchronous wheel. The spline has a fixed seat and a belt clamp. The belt clamp is located on one side of the fixed seat. The fixed seat is located at the bottom of the spline. The belt clamp is connected to the second synchronous belt.

4. A biochemical immune stirring vertical anti-collision structure control method, applied to a biochemical immune stirring vertical anti-collision structure as claimed in any one of claims 1 to 3, characterized in that: The following steps are involved: The code disk rotates counterclockwise, and when the photoelectric coupler recognizes the edge of the notch, it continues to move counterclockwise for a fixed number of steps. After the system determines that this position is indeed the notch position, it moves clockwise for a fixed number of steps to recognize the first disk gap, the rotating motor stops, and the photoelectric coupler feeds back the position information to the instrument control system; The instrument control system counts the number of clockwise movement steps of the rotating motor and compares it with a preset value to obtain a comparison result; Based on the comparison result, the horizontal position of the stirring rod is judged, and based on the horizontal position of the stirring rod, whether the stirring rod can be lifted or lowered is judged to obtain a judgment result. If the judgment result shows that the lifting or lowering action can be performed, the instrument control system issues an instruction to control the lifting and lowering of the lifting component, and controls the stirring rod to perform a stirring operation. If the judgment result shows that the lifting or lowering action cannot be performed, an alarm prompt is issued; If the cleaning command is executed, the rotating motor continues to rotate clockwise, and counts with the first disc seam position as the base point. After the second disc seam is identified, the rotating motor stops, and the photoelectric coupler feeds back the position information to the instrument control system. The instrument control system counts the movement steps of the rotating motor and compares it with the preset value to obtain a comparison result; The horizontal position of the stirring rod is judged based on the comparison result, and whether the stirring rod can be lifted or lowered is judged based on the horizontal position of the stirring rod to obtain a judgment result. If the judgment result shows that the lifting or lowering action can be performed, the instrument control system issues an instruction to control the lifting and lowering of the lifting component, and controls the stirring rod to perform a cleaning operation. If the judgment result shows that the lifting or lowering action cannot be performed, an alarm prompt is issued.

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