Nine-axis truss reciprocating type motion sample adding device of biochemical analyzer
Through the nine-axis truss reciprocating motion sample loading device, high-precision sample loading of the biochemical analyzer is achieved using components such as guide rails, sliders and stepper motors, which solves the problem of inaccurate positioning of the single-arm rotary sample loading method and improves the accuracy and stability of the experimental results.
Patent Information
- Application Number
- CN202422295025.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The single-arm rotary sample loading method of existing biochemical analyzers can easily lead to inaccurate positioning under shading and dust, increasing the risk of adding wrong reagents and damaging sample loading needles, affecting the accuracy of experimental results.
The nine-axis truss reciprocating motion sample reloading device is adopted to achieve high-precision positioning and motion control of sample needles and reagent needles through components such as guide rails, long sliders, stepper motors, synchronization wheels and belts, and the linear motion pulse counting method of stepper motors ensures sample reloading accuracy.
It improves the accuracy and stability of the sample loading position, reduces the impact of instrument failure on the experiment, and ensures the accuracy of experimental results.
Smart Images
Figure CN223155037U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of trusses, in particular to a reciprocating sample adding device for a nine-axis truss of a biochemical analyzer. Background Technique
[0002] Biochemical analyzers can be classified into dry biochemical analyzers and wet biochemical analyzers according to their functions, into low-speed biochemical analyzers, medium-speed biochemical analyzers and high-speed biochemical analyzers according to their speeds, and into fully automatic biochemical analyzers and semi-automatic biochemical analyzers according to their operation methods. The sample adding method of movement is an important accessory on the biochemical analyzer, which is used to accurately position and sample reagents, and in order to ensure the accuracy of the experiment, the sampling needle on the biochemical analyzer must reach the specified reagent and sample holes through high-precision positioning each time.
[0003] Most common biochemical analyzers are single-arm rotary sample adding, and the reagent and sample vacancies are positioned through gratings. The problems brought by this method are that inaccurate positioning, the risk of adding the wrong reagent and sampling the wrong sample will occur in the case of occlusion and dust, and there is also the risk of damaging the reagent and the sampling needle, ultimately affecting the accuracy of the experimental results and not meeting the requirements of experimental work. For this reason, a reciprocating sample adding device for a nine-axis truss of a biochemical analyzer is proposed. Content of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] In view of the deficiencies of the prior art, the utility model provides a reciprocating sample adding device for a nine-axis truss of a biochemical analyzer to solve the problems raised in the above background technique.
[0006] (2) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solution: A reciprocating sample adding device for a nine-axis truss of a biochemical analyzer, including a guide rail hoisting and fixing member, the bottom of the guide rail hoisting and fixing member is installed with a guide rail through a screw, a long slider is slidably installed outside the guide rail, a sample needle assembly, a first reagent needle assembly and a second reagent needle assembly are fixed outside the long slider through a screw, a stepping motor is fixed outside one side of the guide rail hoisting and fixing member through a screw, a synchronous pulley is installed outside the output end of the stepping motor, a driven pulley is arranged on the left side at the lower end of the guide rail hoisting and fixing member, a first belt, a second belt and a third belt are installed outside the synchronous pulley and the driven pulley, and a reset sensor is fixed outside the sample needle assembly, the first reagent needle assembly and the second reagent needle assembly through a screw.
[0008] Preferably, the synchronous pulley and the stepping motor are fixedly installed through finger screws.
[0009] Preferably, sampling lifting pads are fixedly installed at the four corners outside the guide rail lifting fixture through screws.
[0010] Preferably, a stud is provided at the front end on the left side of the guide rail lifting fixture.
[0011] (III) Beneficial effects
[0012] Compared with the prior art, the present utility model provides a nine-axis truss reciprocating motion sampling device for a biochemical analyzer, which has the following beneficial effects:
[0013] The present utility model realizes high precision, high stability, unified material accessories, and unified installation method through the linear motion pulse counting of the stepping motor, so as to improve the position accuracy of sampling and aspiration, and reduce the influence of instrument failures on experiments. Description of the drawings
[0014] Figure 1 is a three-dimensional view of the overall structure of the present utility model;
[0015] Figure 2 is a bottom view of the present utility model;
[0016] Figure 3 is a front view of the present utility model.
[0017] In the figure: 1, guide rail lifting fixture; 2, guide rail; 3, long slider; 4, sample needle assembly; 5, first reagent needle assembly; 6, second reagent needle assembly; 7, stepping motor; 8, synchronous pulley; 9, driven pulley; 10, first belt; 11, reset sensor; 12, second belt; 13, third belt; 14, sampling lifting pad; 15, stud. Specific implementation manners
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] The present utility model provides a technical solution, a nine-axis truss reciprocating motion sampling device for a biochemical analyzer. Please refer to Figure 1 、 Figure 2 and Figure 3, including a guide rail hoisting fixture 1. A guide rail 2 is installed at the bottom of the guide rail hoisting fixture 1 through a screw. A long slider 3 is slidably installed outside the guide rail 2. A sample needle assembly 4, a first reagent needle assembly 5, and a second reagent needle assembly 6 are fixed to the outside of the long slider 3 through screws. On one side outside the guide rail hoisting fixture 1, a stepping motor 7 is fixed through a screw. A synchronous pulley 8 is installed outside the output end of the stepping motor 7. A driven pulley 9 is arranged on the left side at the lower end of the guide rail hoisting fixture 1. A first belt 10, a second belt 12, and a third belt 13 are installed outside the synchronous pulley 8 and the driven pulley 9. Reset sensors 11 are fixed to the outsides of the sample needle assembly 4, the first reagent needle assembly 5, and the second reagent needle assembly 6 through screws.
[0020] Please refer to Figure 1 , Figure 2 and Figure 3 , the synchronous pulley 8 and the stepping motor 7 are fixedly installed through finger screws.
[0021] Please refer to Figure 1 , Figure 2 and Figure 3 , sample addition hoisting pads 14 are fixedly installed at the four corners outside the guide rail hoisting fixture 1 through screws.
[0022] Please refer to Figure 1 , Figure 2 and Figure 3 , a stud 15 is arranged at the front end on the left side of the guide rail hoisting fixture 1.
[0023] This solution: When the sample needs to perform X-axis translation movement, Y-axis rotation movement, and Z-axis lifting movement, the stepper motor 7 is fixed on the truss using a screw, the synchronous pulley 8 is installed on the stepper motor 7 using a finger nut, the driven pulley 9 is installed on the truss using a screw, and the hardware movement structure is completed by connecting them with a belt. A motor drive control board with a voltage of 24V, a current of 1A, and 128 microsteps is used to drive a 40MM thick stepper motor as the driving device, and together with the synchronous pulley 8 and the synchronous belt as the connecting device, the sample can perform X-axis translation movement, Y-axis rotation movement, and Z-axis lifting movement. The movement control method of the sample and the reagent is the same; first, the sample needle assembly 4 operates the sample X-axis stepper motor 7 to move, then the sample needle assembly 4 operates the sample Y-axis stepper motor 7 to move. After reaching the specified sample hole position, the sample needle assembly 4 then operates the sample needle Z-axis stepper motor 7 to reach the liquid level for aspiration, and then the sample needle assembly 4 completes the aspiration and the sample needle Z-axis stepper motor 7 resets; the sample needle X-axis stepper motor 7 of the sample needle assembly 4 moves to the sample addition position, the sample needle Y-axis stepper motor 7 of the sample needle assembly 4 operates to the sample addition position, the sample needle Z-axis stepper motor 7 of the sample needle assembly 4 operates to the sample addition position, and then after the sample needle assembly 4 completes the sample addition, the sample needle Z-axis stepper motor 7 resets; the sample needle X-axis stepper motor 7 of the sample needle assembly 4 moves to the cleaning position, the sample needle Y-axis stepper motor 7 of the sample needle assembly 4 operates to the cleaning position, the sample needle Z-axis stepper motor 7 of the sample needle assembly 4 operates to the cleaning position, and then after the sample needle assembly 4 completes the sample addition, the sample needle Z-axis stepper motor 7 resets.
[0024] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A reciprocating sample adding device for a nine-axis truss of a biochemical analyzer, comprising a guide rail hoisting and fixing member (1), characterized in that: The bottom of the guide rail lifting and fixing part (1) is installed with a guide rail (2) through a screw. A long slider (3) is slidably installed outside the guide rail (2). A sample needle assembly (4), a first reagent needle assembly (5) and a second reagent needle assembly (6) are fixed to the outside of the long slider (3) through screws. A stepping motor (7) is fixed to one side outside the guide rail lifting and fixing part (1) through a screw. A synchronous pulley (8) is installed outside the output end of the stepping motor (7). A driven pulley (9) is arranged on the left side at the lower end of the guide rail lifting and fixing part (1). A first belt (10), a second belt (12) and a third belt (13) are installed outside the synchronous pulley (8) and the driven pulley (9). Reset sensors (11) are fixed to the outsides of the sample needle assembly (4), the first reagent needle assembly (5) and the second reagent needle assembly (6) through screws.
2. The reciprocating sampling device of a nine-axis truss for a biochemical analyzer according to claim 1, wherein: The synchronous pulley (8) and the stepping motor (7) are fixedly installed through a finger screw.
3. A reciprocating sample adding device for a nine-axis truss of a biochemical analyzer according to claim 1, characterized in that: Sampling lifting pads (14) are fixedly installed at the four corners outside the guide rail lifting and fixing part (1) through screws.
4. A biochemical analyzer nine-axis truss reciprocating motion sampling device according to claim 1, characterized in that: A stud (15) is arranged at the front end on the left side of the guide rail lifting and fixing part (1).