Highly reliable electrolyte detection module and biochemical analyzer

Abstract

The present invention relates to the technical field of medical devices, solves the problems of low working reliability and poor detection accuracy of existing electrolyte detection, and provides an electrolyte detection module including: an electrode module; a sampling component; a waste liquid collection module; a pipeline module; a valve control module; a degassing module, including a first degassing module and a second degassing module; a driving module, providing a sample diluent flow driving force, a cleaning liquid flow driving force and a waste liquid flow driving force; the sample diluent contained in the sample diluent container flows through the first degassing module, the driving module, the sample diluent valve, the sampling pool, the electrode module in sequence through the sample diluent pipeline and flows into the waste liquid collection module; the cleaning liquid contained in the cleaning liquid container flows through the second degassing module, the driving module, the cleaning liquid valve, the sampling pool, the electrode module in sequence through the cleaning liquid pipeline and flows into the waste liquid collection module. The electrolyte detection module and the biochemical analyzer of the present invention have the advantages of high working reliability and high detection accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an electrolyte detection module and a biochemical analyzer with high reliability. Background Art

[0002] Currently, clinical studies on Na in serum, plasma or diluted urine samples are + , K + , Cl - The main methods for detecting plasma concentration are enzyme method, flame photometry, ion selective electrode method, etc. ISE is the abbreviation of ion selective electrode. The biochemical analyzer uses optical (colorimetric, turbidimetric) method to measure the electrolyte detection module, which is different from the test method using ISE (electrochemical method). A separate electrolyte detection module is required to realize the electrode method test of ion item concentration on the biochemical analyzer, so as to meet the requirements of Na + , K + , Cl - Determination of plasma concentration. Ion selective electrode analysis is an electrochemical technique that uses the relationship between electrode potential and ion activity to determine ion concentration. The change in electrode potential conforms to the Nernst equation, that is, the logarithm of ion activity in the solution is linearly related to the electrode potential. The "selection" of ion selective electrode means that an ion is only sensitive to its specific electrode, that is, a specific electrode is required to detect an ion. Therefore, the existing electrolyte detection module needs to be equipped with multiple ion detection units that detect one of the ions separately.

[0003] The electrolyte detection module on the biochemical analyzer has been widely used in clinical practice. The ISE indirect method is now mostly used for determination. The sample needs to be quantitatively diluted with a diluent, and then its electrode potential is measured. The electrolyte detection module of the biochemical analyzer can be assembled as a separate external device without pre-treatment of the sample. The ion selective electrode method is a more precise and accurate analysis method, so it is widely promoted in clinical practice.

[0004] However, one shortcoming of the current electrolyte detection module is that there is air in at least one liquid pipeline, resulting in poor working reliability and reduced detection accuracy; in addition, the current electrolyte detection module also includes at least one of the following shortcomings: the liquid in the sampling pool is not stirred evenly, and the reliability of the electrodes being replaced or assembled together when they are abutted against each other is low, resulting in the risk of leakage of liquids including the tested samples and reagents; and the accuracy of liquid transportation in the pipeline is not high enough, resulting in errors in the amount of liquid transported, affecting the accuracy of the detection results; it can be seen that the current electrolyte detection module has the disadvantages of low working reliability and poor detection accuracy.

[0005] Therefore, there is an urgent need to provide an electrolyte detection module and a biochemical analyzer with high reliability that can ensure high working reliability and high detection accuracy. Summary of the invention

[0006] The present invention aims at the shortcomings of the above-mentioned existing electrolyte detection modules, such as low working reliability and low detection accuracy, and in order to achieve one purpose of the present invention, provides an electrolyte detection module with high reliability, including: an electrode module, including a plurality of ion selective electrodes sealed and tightly attached to each other, and an ion selection channel formed between each ion selective electrode; a sampling component, which is arranged upstream of the electrode module and has a sample inlet and a sampling pool, and the sample inlet can receive a sample to be tested; a waste liquid collection module; a pipeline module, including a sample diluent pipeline, a cleaning liquid pipeline and a waste liquid pipeline; a valve control module, including a sample diluent valve, a cleaning liquid valve and a waste liquid valve; a degassing module, including a first degassing module and a second Degassing module; a driving module, providing sample diluent flow driving force, cleaning liquid flow driving force and waste liquid flow driving force; the sample diluent flow driving force is used to drive the sample diluent contained in a sample diluent container to flow through the sample diluent pipeline in sequence through the first degassing module, the driving module, the sample diluent valve, the sampling pool, the electrode module, and under the action of the waste liquid flow driving force, through the waste liquid pipeline to flow into the waste liquid collection module; the cleaning liquid flow driving force is used to drive the cleaning liquid contained in the cleaning liquid container to flow through the cleaning liquid pipeline in sequence through the second degassing module, the driving module, the cleaning liquid valve, the sampling pool, the electrode module, and under the action of the waste liquid flow driving force, through the waste liquid pipeline to flow into the waste liquid collection module.

[0007] Furthermore, the driving module includes a driving component, a first detection component, a diluent plunger pump, a cleaning liquid plunger pump and a waste liquid plunger pump. The driving component includes a driving motor, a driving gear, a driven gear, a passive gear, a carrying plate, a moving plate, a guide rail and a slider. The carrying plate carries plungers of the diluent plunger pump, the cleaning liquid plunger pump and the waste liquid plunger pump, each of which is parallel to each other in a first direction. The driving motor drives the driving gear to rotate, the driven gear is connected to the passive gear for synchronous rotation, the driving gear is meshed with the driven gear, and the first side of the moving plate is provided with a gear extending parallel to each plunger. The driven gear is meshed with the spur gear segment, the bearing plate is drivingly connected to the movable plate, the movable plate is fixed to the slider, the slider is slidingly connected to the guide rail, the first detection component includes a first signal transmitting end and a first signal receiving end relative to each other with an interval space, a baffle is provided on the second side of the movable plate opposite to the first side, the driving motor drives the movable plate to move along the guide rail through the slider, and drives the baffle to reciprocate in the interval space along the first direction, the first detection component detects the position of each plunger according to whether the baffle blocks the signal, and the position includes the highest position and the lowest position.

[0008] Furthermore, the ion selective electrode includes a chloride ion selective electrode, a potassium ion selective electrode and a sodium ion selective electrode, the electrode module also includes a ground electrode, a reference electrode, a temperature sensor electrode, a transfer plate and a support member, and the electrolyte detection module with high reliability also includes a bracket, which supports the electrode module and the sampling component. The transfer plate includes a pair of relatively spaced pressure plates, a fixed plate and a transfer plate respectively connected to the two ends of the pressure plate, a fixing hole is provided on the fixed plate, and the transfer plate and the support member are respectively provided with a first transfer hole and a second transfer hole that are rotatably fixed by the fixing member. A rotating column is fixed on both sides of the support member, and the bracket is provided with a connecting column with a connecting hole and a pair of rotating holes. The rotating column and the rotating hole are correspondingly rotatably connected, and the fixing hole and the connecting hole are respectively provided with a first rotating hole and a second rotating hole. They are fixed by a detachable fixing part, a waste liquid pipeline can pass between a pair of pressure plates, the temperature sensor electrode is connected to the ion selection channel to detect the temperature of the liquid flowing through, and the pressure plate, the ground electrode, the chloride ion selection electrode, the potassium ion selection electrode, the sodium ion selection electrode, the reference electrode and the temperature sensor electrode are arranged in sequence in the liquid flow direction of the ion selection channel. When the fixing part is in the installation state of fixing the transfer plate, the pressure plate presses the temperature sensor electrode so that the two adjacent electrodes are tightly sealed to each other and the reference electrode presses against one side of the sampling component. When the fixing part is in the disassembly state of releasing the fixation of the transfer plate, the pressure of the pressure plate on the temperature sensor electrode is released, so that each electrode can be replaced.

[0009] Furthermore, the waste liquid collection module includes a vertical waste liquid pool and a waste liquid guide seat, the waste liquid guide seat includes a fixed seat hole and a plug-in column, the bracket is provided with a fixed frame hole and a plug-in slot, the fixed seat hole and the fixed frame hole are fixedly connected by a fixing piece, the plug-in column is plugged into the plug-in slot, the waste liquid guide seat is provided with a receiving channel, a discharge channel and an intermediate channel located between the receiving channel and the discharge channel, the receiving channel and the discharge channel extend in opposite vertical directions at both ends of the intermediate channel, and the intermediate channel extends in a horizontal direction, The waste liquid pool has a waste liquid diversion cavity extending in a vertical direction, and a discharge pipe is connected to the end of the discharge channel. The discharge pipe is inserted into the discharge pipe in the waste liquid pool through a through hole on the bracket. The waste liquid pipeline includes a first waste liquid pipe, a second waste liquid pipe and a third waste liquid pipe. The waste liquid valve is set as a three-way valve. The first waste liquid pipe is connected to the electrode module and a valve port of the waste liquid valve, the second waste liquid pipe is connected to the waste liquid plunger pump and another valve port of the waste liquid valve, and the third waste liquid pipe is connected to the waste liquid guide seat and another valve port of the waste liquid valve. The vertical waste liquid pool discharges the waste liquid.

[0010] Furthermore, the electrolyte detection module with high reliability also includes a stirring mechanism, which includes a stirring motor, a driving column and a stirring paddle, the stirring motor drives the driving column to rotate, the sampling assembly includes a sampling frame and a cover plate, the sampling frame includes a first side frame plate, a pair of second side frame plates, a top frame plate and a bottom frame plate, the sampling pool is arranged in the sampling frame, the cover plate is sealed and connected to the sampling frame relative to the first side frame plate, the first side frame plate is connected between the pair of second side frame plates, a sample inlet is provided on the top frame plate, the outer surface of the first side frame plate is provided with a first cavity and a second cavity which protrude and communicate with the driving column in sequence, the inner surface of the first side frame plate is provided with a flange protruding around the outer circumference of the first cavity, the flange surrounds a third cavity which is connected to the first cavity, the sampling pool includes the first cavity and the third cavity, a first guide column with a vertical through hole is provided between the flange and the top frame plate, and the vertical through hole communicates The sample inlet and the third cavity, a second guide column with an inclined through hole inclined downward relative to the horizontal plane is provided at the bottom of the flange, the inclined through hole penetrates a second side frame plate and connects the sample inlet and the electrode module, a pair of permanent magnets are provided on the outer surface of the driving column facing the first air, the driving column and the outer surface gap of the second cavity are opposite, the stirring paddle includes a positioning plate and a rotating paddle, the positioning plate is fixed in the second cavity and is provided with a plate hole, the same central axis of the first cavity and the third cavity is located below the central axis of the second cavity in the vertical direction, the rotating paddle includes a rotating shaft, a rotating plate, a magnet and a hollow pulp block, the rotating shaft is fixedly connected to the rotating plate and rotatably inserted in the disk hole, the hollow pulp block is fixedly connected to the rotating plate to accommodate the magnet between the two, the magnet is attracted by a pair of permanent magnets, and the driving column drives the hollow pulp block in a magnetic driving manner to stir the liquids in the first cavity and the third cavity evenly.

[0011] Furthermore, a pair of limit posts are provided on the bottom surface of the second cavity, and the positioning plate is provided with a pair of limit holes correspondingly plugged into and matched with the limit posts. The wedge-shaped free end of the hollow pulp block is located directly below the vertical through hole. The cover plate is provided with a protrusion, which is plugged into the third cavity and interference fits with the inner surface of the flange. A sealing ring is sleeved on the outer periphery of the protrusion, and the sealing ring seals the mating surfaces of the flange and the protrusion.

[0012] Furthermore, the stirring mechanism also includes a second detection component, a baffle rod extending in a radial direction is fixed to the outer periphery of the driving column, the second detection component includes a second signal emitting end and a second signal receiving end which are spaced relative to each other, the baffle rod rotates between the second signal emitting end and the second signal receiving end as the driving column rotates, and the second detection component detects the rotation speed and / or rotation duration of the driving column according to whether the baffle rod blocks the signal.

[0013] Furthermore, the highly reliable electrolyte detection module also includes a controller, which receives the detection results of the first detection component and the second detection component to control the rotational speeds of the driving motor and the stirring motor to match each other, so that the rotational speed of the stirring motor meets the flow rate of the liquid supplied to the sampling pool per unit time, so that the liquid entering the sampling pool is stirred timely and fully.

[0014] Furthermore, the first degassing module and the second degassing module are connected to each other through an air duct, and the degassing module also includes a first bubble detector and a second bubble detector, the first bubble detector is connected in series in the sample diluent pipeline, and the second bubble detector is connected in series in the cleaning liquid pipeline, and a diluent supply needle and a cleaning liquid supply needle are respectively provided at the ends of the sample diluent pipeline and the cleaning liquid pipeline, and the lengths of the diluent supply needle and the cleaning liquid supply needle extending from the sample inlet to the vertical through hole are unequal.

[0015] To achieve another object of the present invention, a biochemical analyzer is provided, comprising any one of the above electrolyte detection modules with high reliability.

[0016] The beneficial effects of the present invention are:

[0017] The electrolyte detection module and biochemical analyzer with high reliability of the present invention can respectively degas the sample diluent and the cleaning liquid by setting the first degassing module and the second degassing module of the degassing module, thereby ensuring that there is no air in each pipeline and the driving module, and ensuring the technical effect of high working reliability and high detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0019] Figure 1 It is a schematic structural diagram of an electrolyte detection module with high reliability according to an embodiment of the present invention in a front-view direction;

[0020] Figure 2 For the corresponding Figure 1 The structural diagram of the inner shell and the cover plate is omitted;

[0021] Figure 3 It is a structural schematic diagram of the electrolyte detection module with high reliability according to an embodiment of the present invention in a rearward view direction with the inner shell omitted;

[0022] Figure 4 It is an exploded schematic diagram of a transfer plate and a support member of an electrolyte detection module with high reliability according to an embodiment of the present invention;

[0023] Figure 5 It is a schematic structural diagram of a bracket of an electrolyte detection module with high reliability according to an embodiment of the present invention;

[0024] Figure 6 It is a structural schematic diagram of a waste liquid guide seat of an electrolyte detection module with high reliability according to an embodiment of the present invention at one viewing angle;

[0025] Figure 7 It is a structural schematic diagram of the waste liquid guide seat of the electrolyte detection module with high reliability according to an embodiment of the present invention from another perspective;

[0026] Figure 8 It is a structural schematic diagram of a driving component of an electrolyte detection module with high reliability according to an embodiment of the present invention when viewed from the left;

[0027] Fig. 9 It is a structural schematic diagram of a driving component of an electrolyte detection module with high reliability according to an embodiment of the present invention in the main viewing direction;

[0028] Fig.10 It is a structural schematic diagram of a sampling rack of an electrolyte detection module with high reliability according to an embodiment of the present invention in a main viewing direction;

[0029] Fig.11 It is a schematic structural diagram of a sampling rack of an electrolyte detection module with high reliability according to an embodiment of the present invention in another main viewing direction;

[0030] Fig.12 It is a schematic structural diagram of a sampling rack of an electrolyte detection module with high reliability according to an embodiment of the present invention in a rearward viewing direction;

[0031] Fig.13 An exploded schematic diagram of a stirring mechanism of an electrolyte detection module with high reliability according to an embodiment of the present invention at one viewing angle;

[0032] Fig.14 An exploded schematic diagram of a stirring mechanism of an electrolyte detection module with high reliability according to an embodiment of the present invention from another perspective;

[0033] Description of reference numerals:

[0034] 1. Electrode module; 11. Chloride ion selective electrode; 12. Potassium ion selective electrode; 13. Sodium ion selective electrode; 14. Ground electrode; 15. Reference electrode; 16. Temperature sensor electrode; 17. Transfer plate; 171. Pressure plate; 172. Fixing plate; 1721. Fixing hole; 173. Transfer plate; 1731. First transfer hole; 18. Supporting member; 181. Second transfer hole; 182. Rotating column; 2. Sampling assembly; 21. Sampling rack; 211. First side frame plate; 2111. First cavity; 2112. Second cavity; 212. Second side frame plate; 213. Top frame plate; 214. Bottom frame plate; 22 , sample inlet; 23, sampling pool; 24, flange; 241, third cavity; 25, first guide column; 26, second guide column; 27, limit column; 28, cover plate; 29, vertical through hole; 3, waste liquid collection module; 31, vertical waste liquid pool; 32, waste liquid guide seat; 321, fixed seat hole; 322, plug-in column; 323, receiving channel; 324, discharge channel; 325, middle channel; 4, pipeline module; 41, sample diluent pipeline; 411, diluent supply needle; 42, cleaning liquid pipeline; 421, cleaning liquid supply needle; 43, waste liquid pipeline; 431, first waste liquid pipe; 432, second waste liquid tube; 433, the third waste liquid tube; 5, valve control module; 51, sample diluent valve; 52, cleaning liquid valve; 53, waste liquid valve; 6, degassing module; 61, the first degassing module; 62, the second degassing module; 63, the conducting tube; 7, driving module; 71, driving assembly; 711, driving motor; 712, driving gear; 713, driven gear; 714, passive gear; 715, bearing plate; 716, moving plate; 7161, spur gear segment; 7162, baffle; 717, guide rail; 718, slider; 72, the first detection assembly; 721, the first signal transmitting end; 722, the first signal receiving end; 73, dilute Liquid release plunger pump; 74, cleaning liquid plunger pump; 75, waste liquid plunger pump; 8, bracket; 81, connecting column; 82, rotating hole; 83, fixing frame hole; 84, plug-in slot; 85, through hole; 86, inclined surface; 9, stirring mechanism; 91, stirring motor; 92, driving column; 921, permanent magnet; 922, stop rod; 93, stirring paddle; 931, positioning plate; 9311, plate hole; 9312, limiting hole; 932, rotating paddle; 9321, rotating shaft; 9322, rotating plate; 9323, magnet; 9324, hollow pulp block; 94, second detection component; 941, second signal transmitting end; 942, second signal receiving end. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described in conjunction with the drawings in the embodiment of the present invention. 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 that there is any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. Moreover, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element limited by the sentence "comprising..." does not exclude the presence of other identical elements in the process, method, article or device including the element. If there is no conflict, the embodiments of the present invention and the various features in the embodiments can be combined with each other, all within the scope of protection of the present invention.

[0036] Please refer to Figures 1 to 14The embodiment of the present invention provides an electrolyte detection module with high reliability. The sample to be tested received by the electrolyte detection module with high reliability is diluted by the sample diluent so that the electrode module can test the concentration of ions by the electrode method. The electrolyte detection module with high reliability can be assembled in the biochemical analyzer or configured as a separate external device outside the biochemical analyzer, so as to meet the biochemical analyzer's determination of ion concentrations such as Li+, Na+, K+, and Cl-. The electrolyte detection module with high reliability includes: an electrode module 1, a sampling component 2, a waste liquid collection module 3, a pipeline module 4, a valve control module 5, a degassing module 6, and a drive module 7. The electrode module 1 includes a plurality of ion selective electrodes that are tightly sealed to each other, and an ion selection channel is formed between each ion selective electrode. The sampling component 2 is arranged upstream of the electrode module 1 and has a sample inlet 22 and a sampling pool 23. The sample inlet 22 can receive the sample to be tested. It should be noted that the sample inlet 22 can receive liquids and include samples to be tested such as serum and urine, as well as sample diluents, cleaning solutions, and correction solutions. The pipeline module 4 includes a sample diluent pipeline 41, a cleaning liquid pipeline 42 and a waste liquid pipeline 43. Thus, the electrolyte detection module with high reliability can measure the concentrations of Na+, K+ and Cl- in serum and urine. The sampling component 2 has a complete sample inlet 22. This compact design can speed up the test speed of the module and greatly reduce the carryover contamination rate of the module. The valve control module 5 includes a sample diluent valve 51, a cleaning liquid valve 52 and a waste liquid valve 53. The degassing module 6 includes a first degassing module 61 and a second degassing module 62. The driving module 7 provides sample diluent flow driving force, cleaning liquid flow driving force and waste liquid flow driving force. The sample diluent flow driving force is used to drive the sample diluent contained in a sample diluent container (not shown) to flow through the sample diluent pipeline 41 in sequence through the first degassing module 61, the sample diluent valve 51, the sampling pool 23, the electrode module 1, and under the action of the waste liquid flow driving force, through the waste liquid pipeline 43 to flow into the waste liquid collection module 3, the waste liquid includes the liquid mixed with the sample to be tested and the cleaning liquid after the cleaning pipeline, etc., wherein the sample diluent container is connected to the first degassing module 61 through a section of the sample diluent pipeline 41 (not shown). The cleaning liquid flow driving force is used to drive the cleaning liquid contained in the cleaning liquid container (not shown) to flow through the cleaning liquid pipeline 42 in sequence through the second degassing module 62, the cleaning liquid valve 52, the sampling pool 23, the electrode module 1, and under the action of the waste liquid flow driving force, through the waste liquid pipeline 43 to flow into the waste liquid collection module 3, and the cleaning liquid container is connected to the second degassing module 62 through a section of the cleaning liquid pipeline 42 (not shown). The sample diluent container and the cleaning liquid container are detachably installed in the electrolyte detection module with high reliability as consumables.Therefore, the highly reliable electrolyte detection module of the present invention can degas the sample diluent and the cleaning solution respectively through the first degassing module 61 and the second degassing module 62 of the degassing module 6, and can ensure that there is no air in each pipeline and the driving module 7, thereby ensuring higher detection accuracy.

[0037] Please refer to Figure 2 , Figure 3 , Figure 8 and Fig. 9Specifically, the driving module 7 includes a driving component 71, a first detection component 72, a diluent plunger pump 73, a cleaning liquid plunger pump 74 and a waste liquid plunger pump 75 (each plunger pump is only schematically shown and not specifically shown in the figure), the driving component 71 includes a driving motor 711, a driving gear 712, a driven gear 713, a passive gear 714, a carrying plate 715, a moving plate 716, a guide rail 717 and a slider 718, the carrying plate 715 carries the plungers of the diluent plunger pump 73, the cleaning liquid plunger pump 74 and the waste liquid plunger pump 75, each of which is parallel to each other in the first direction. Therefore, the degassing module 6 can ensure that there is no air in each pump and ensure the accuracy of sample addition of each pump. In this embodiment, the first direction is set to be a vertical direction, the driving motor 711 drives the driving gear 712 to rotate, the driven gear 713 and the passive gear 714 can be connected by being fixed on the same rotating shaft so as to rotate synchronously, the driving gear 712 is meshed with the driven gear 713, the first side portion of the movable plate 716 is provided with a spur tooth segment 7161 extending parallel to each plunger, the passive gear 714 is meshed with the spur tooth segment 7161, the movable plate 716 is drivenly connected to the supporting plate 715, the supporting plate 715 is drivenly connected to the movable plate 716, the movable plate 716 is fixed to the slider 718, and the slider 718 is slidably connected to the guide rail 717. The first detection assembly 72 includes a first signal transmitting end 721 and a first signal receiving end 722 with a spacing space. The second side portion of the movable plate 716 opposite to the first side portion is provided with a baffle 7162. The driving motor 711 drives the movable plate 716 to move along the guide rail 717 through the slider 718, thereby driving the baffle 7162 to reciprocate in the spacing space along the first direction. The first detection assembly 72 detects the position of each plunger according to whether the baffle 7162 blocks a signal such as infrared rays. The position includes the highest position, which may also be called the zero position, and the lowest position. In this embodiment, the detection assembly is used to detect whether the position of each plunger is at the zero position, so that by controlling the driving motor 711 to rotate forward and reverse for a predetermined number of times, the detection assembly is used to detect the movement position of each plunger, so that the movement speed, distance, etc. of each plunger can be accurately controlled, thereby ensuring the accurate control of the flow rate of liquids including samples to be tested, sample diluents, cleaning liquids, etc. in the corresponding pipelines. Furthermore, since the driving assembly 71 uses a multi-stage gear including a driving gear 712, a driven gear 713 and a passive gear 714, a multi-stage reduction transmission is implemented for each plunger pump, so that the step resolution of each plunger pump is finer and the minimum controlled liquid addition amount is lower. Moreover, by using a diluent plunger pump 73 and a cleaning liquid plunger pump 74 to drive the cleaning liquid and the diluent respectively, the cleaning liquid and the diluent can be injected alternately, reducing the mixing requirements.

[0038] Please refer to Figure 2 , Figure 4 and Figure 5Specifically, the ion selective electrode includes a chloride ion selective electrode 11, a potassium ion selective electrode 12 and a sodium ion selective electrode 13. Since the anti-interference ability of the traditional chloride ion selective electrode 11 is relatively weak, the ion selective membrane of the chloride ion selective electrode 11 in the present invention is made of a quaternary ammonium salt loaded by a polymer compound as an ion sensitive material, and thus has a stronger anti-interference ability. The electrode module 1 also includes a ground electrode 14, a reference electrode 15, a temperature sensor electrode 16, a transfer plate 17 and a support 18. Due to the high impedance characteristics of the electrode, the noise spike from the ground or power supply can easily affect the voltage signal of the electrode. Even a slight voltage spike can affect the detection result. Therefore, by setting the ground electrode 14, the free charge in the liquid can be removed and the detection accuracy can be improved. After completing the sample test every day, the electrolyte detection module with high reliability can be cleaned once to reduce the protein adhesion in the electrode membrane. In addition, to ensure the stability of each electrode, starting from the last sample test stop, the electrolyte detection module with high reliability performs automatic cleaning every 90 minutes to maintain the activity of the electrode, and the cleaning consumes a certain amount of sample diluent and cleaning fluid. In addition, the electrolyte detection module with high reliability should be directly connected to the main grounding point of the biochemical analyzer to ensure that no ground loop is generated when the electrolyte detection module with high reliability is connected to the biochemical analyzer. In addition, it is known that when the same liquid is used as the medium, each ion selective electrode will form a fixed and stable potential difference with the reference electrode 15, and the potential difference generated by the ion selective electrode changes with the change of the ion concentration to which it responds. The relationship between the generated voltage and the sensed ion concentration satisfies the Nernst equation. The electrolyte detection module with high reliability of the present invention adopts a comparative measurement method using the Nernst equation. The Nernst equation and the comparative measurement method are common technical knowledge in the art and will not be repeated here. Therefore, by adding the temperature sensor electrode 16, the temperature coefficient can be brought into the Nernst equation to improve the detection accuracy. The electrolyte detection module with high reliability also includes a bracket 8, which supports the electrode module 1 and the sampling component 2. It can be seen that the electrolyte detection module with high reliability also includes a support, an inner shell and an outer shell (not shown in the figure). The support is used to support the various parts included in the electrolyte detection modules with high reliability described in this article, and the support fixes the circuit board and the inner shell.The transfer plate 17 includes a pair of spaced-apart pressure plates 171, a fixing plate 172 and a transfer plate 173 respectively connected to the two ends of the pressure plate 171, a fixing hole 1721 is provided on the fixing plate 172, and the transfer plate 173 and the support member 18 are respectively provided with a first transfer hole 1731 and a second transfer hole 181 which are rotationally fixed by the fixing member, a rotating column 182 is fixed on both sides of the support member 18, and the bracket 8 is provided with a connecting column 81 with a connecting hole and a pair of rotating holes 82, the rotating column 182 and the rotating holes 82 are correspondingly connected in rotation, and the fixing hole 1721 and the connecting hole 81 are fixed by a detachable fixing member, and the fixing member described in this article can be a threaded member such as a screw or a stud, so that the corresponding hole fixed by the fixing member can be a threaded hole. A waste liquid pipeline can pass between a pair of pressure plates 171, and the temperature sensor electrode 16 is connected to the ion selection channel to detect the temperature of the liquid flowing through. The pressure plate 171, the ground electrode 14, the chloride ion selection electrode 11, the potassium ion selection electrode 12, the sodium ion selection electrode 13, the reference electrode 15 and the temperature sensor electrode 16 are arranged in sequence in the liquid flow direction of the ion selection channel. When the fixing part is in the installation state where the transfer plate 17 is fixed, the pressure plate 171 presses the temperature sensor electrode 16 so that the two adjacent electrodes are sealed and tightly attached to each other and the reference electrode 15 presses against one side of the sampling component 2. When the fixing part is in the disassembly state where the transfer plate 17 is released, that is, the transfer plate 17 and the supporting plate 18 can rotate around the rotating column 182 together, the pressure of the pressure plate 171 on the temperature sensor electrode 16 is released, so that each electrode can be replaced. In this case, by utilizing the detachable fixing of the rotating plate 17 and the connecting column 81 and the rotation of the rotating member 18 relative to the rotating hole 82, it is possible to facilitate the replacement of the electrodes while providing sufficient pressure to ensure the tight sealing between the electrodes to avoid leakage. In addition, the bracket 8 is also provided with a gradually tapered inclined surface 86 toward the sampling pool 23. The inclined surface 86 can cooperate with the pressing plate 171 to make the electrodes more closely attached to each other toward the sampling pool 23 and receive the liquid from the sampling pool 23 more tightly.

[0039] In one embodiment, the electrolyte detection module with high reliability of the present invention is used to detect the sample to be detected. The detection method includes: 1. The sample diluent is supplied to the sampling pool 23 by the corresponding diluent plunger pump 73, the first bubble detector detects the amount of bubbles in the sample diluent pipeline 41 in real time, and controls the first degassing module 61 to degas the sample diluent according to the amount of bubbles, and the sample to be detected is added to the sampling pool 23. The stirring motor 91 controls the pumping volume per unit time of the diluent plunger pump 73 and the waste liquid plunger pump 75 according to the flow rate of the sample diluent and the sample to be detected flowing through the sampling pool. The stirring motor 91 rotates at a speed per unit time corresponding to the sample diluent and the sample to be tested to obtain a solution; 2. Then, the waste liquid plunger pump 75 is used to draw the solution and make it flow through the flow path of the electrode module 1 to measure the potential difference between the Na+, K+ and Cl- electrodes and the reference electrode 15; 3. After the measurement, the solution is discharged into the waste liquid collection module 3; 4. Before and after the sample measurement, the sample diluent and cleaning liquid instructions are sent to control the diluent plunger pump 73 and the cleaning liquid plunger pump 74 to perform corresponding washing in a preset time period or / and a preset total number of sample measurement cycles.

[0040] Please refer to Figure 2 , Figure 6 and Figure 7Specifically, the waste liquid collection module 3 includes a vertical waste liquid pool 31 and a waste liquid guide seat 32. The waste liquid pool 31 extends a long distance in the vertical direction and has a large capacity. The waste liquid guide seat 32 includes a fixed seat hole 321 and a plug-in column 322. The bracket 8 is provided with a fixed frame hole 83 and a plug-in slot 84. The fixed seat hole 321 and the fixed frame hole 83 are fixedly connected by a fixing member. The plug-in column 322 is plugged into the plug-in slot 84. The waste liquid guide seat 32 is provided with a receiving channel 323, a discharge channel 324 and an intermediate channel 325 located between the receiving channel 323 and the discharge channel 324. The receiving channel 323 and the discharge channel 324 extend in opposite vertical directions at both ends of the intermediate channel 325. The intermediate channel 325 extends in the horizontal direction. Therefore, the waste liquid guide seat 32 can reliably and buffer the waste liquid to flow into the vertical waste liquid pool 31. The waste liquid pool 31 has a waste liquid diversion cavity (not shown) extending in a vertical direction. The end of the discharge channel 324 is connected to a discharge pipe (not shown). The discharge pipe is inserted into the waste liquid pool 31 through a through hole 85 on the bracket 8. The waste liquid pipeline 43 includes a first waste liquid pipe 431, a second waste liquid pipe 432 and a third waste liquid pipe 433. The waste liquid valve 53 is set as a three-way solenoid valve. In addition, the sample diluent valve 51 and the cleaning liquid valve 52 can also adopt a three-way solenoid valve. The first waste liquid pipe 431 is connected to the electrode module 1 and a valve port of the waste liquid valve 53, the second waste liquid pipe 432 is connected to the waste liquid plunger pump 75 and another valve port of the waste liquid valve 53, and the third waste liquid pipe 433 is connected to the waste liquid guide seat 32 and another valve port of the waste liquid valve 53. The vertical waste liquid pool 31 discharges the waste liquid by directly discharging the waste liquid into the waste liquid barrel. Therefore, since the waste liquid pool 31 is configured to have a large capacity and to extend vertically, the liquid is discharged into the waste liquid barrel by its own gravity, and there is no need to independently configure a waste liquid pump, thereby saving costs.

[0041] Please refer to Figure 2 , Figures 10 to 14Specifically, the electrolyte detection module with high reliability also includes a stirring mechanism 9, the stirring mechanism 9 includes a stirring motor 91, a driving column 92 and a stirring paddle 93, the stirring motor 91 drives the driving column 92 to rotate, the sampling assembly 2 includes a sampling frame 21 and a cover plate 28, the sampling frame 21 includes a first side frame plate 211, a pair of second side frame plates 212, a top frame plate 213 and a bottom frame plate 214, the sampling pool 23 is arranged in the sampling frame 21, the cover plate 28 is sealed and connected to the sampling frame 21 opposite to the first side frame plate 211, and the first side frame plate 211 is connected to a pair of A sample inlet 22 is provided on the top frame plate 213 between the second side frame plates 212, a first cavity 2111 and a second cavity 2112 are provided on the outer surface of the first side frame plate 211, which are sequentially protruding relative to the driving column 92 and are connected, and a flange 24 is provided on the inner surface of the first side frame plate 211, which protrudes around the outer circumference of the first cavity 2111, and the flange 24 surrounds a third cavity 241 that is connected with the first cavity 2111. The sampling pool 23 includes the first cavity 2111 and the third cavity 241, and a vertical through hole 29 is provided between the flange 24 and the top frame plate 213. A first guide column 25 is provided, a vertical through hole 29 connects the sample inlet 22 and the third cavity 241, a second guide column 26 having an inclined through hole inclined downward relative to the horizontal plane is provided at the bottom of the flange 24, the inclination angle of the inclined through hole is set to about 3°, so that the liquid can flow easily, the inclined through hole passes through a second side frame plate 212 and connects the sample inlet 22 and the electrode module 1, a pair of permanent magnets 921 are provided on the outer surface of the driving column 92 facing the first air, the driving column 92 is opposite to the outer surface gap of the second cavity 2112, and the stirring paddle 93 includes The positioning plate 931 and the paddle 932, the positioning plate 931 is fixed in the second cavity 2112 and is provided with a plate hole 9311, the first cavity 2111 and the third cavity 241 have the same central axis which is located below the central axis of the second cavity 2112 in the vertical direction, that is, the second cavity 2112 is relatively eccentric relative to the first cavity 2111 and the third cavity 241, so that the rotation of the paddle 932 can generate greater turbulence in the first cavity 2111 and the third cavity 241, making the liquid stirred more evenly, thereby ensuring high accuracy of detection. The rotating paddle 932 includes a rotating shaft 9321, a rotating plate 9322, a magnet 9323 and a hollow pulp block 9324. The rotating shaft 9321 is fixedly connected to the rotating plate 9322 and is rotatably inserted in the disk hole 9311. The hollow pulp block 9324 is fixedly connected to the rotating plate 9322 to accommodate the magnet 9323 therebetween. The magnet 9323 is attracted by a pair of permanent magnets 921. It should be noted that the positions of the magnets 9323 and the permanent magnets 921 can also be interchanged. The driving column 92 drives the hollow pulp block 9324 to stir the liquids in the first cavity 2111 and the third cavity 241 evenly by magnetic drive. Therefore, since the stirring mechanism 9 adopts a magnetic isolation drive design, there is no need to set a sealing structure between the driving column 92 and the stirring paddle 93, thereby eliminating the risk of liquid leakage.

[0042] Please refer to Figures 11 to 14 Preferably, a pair of limiting posts 27 are provided on the bottom surface of the second cavity 2112, and the positioning plate 931 is provided with a pair of limiting holes 9312 correspondingly plugged into the limiting posts 27, so that the positioning plate 931 can be well fixed in the second cavity 2112, and the wedge-shaped free end of the hollow pulp block 9324 is located directly below the vertical through hole 29, so that the wedge-shaped free end can more directly stir the liquid falling through the vertical through hole 29, thereby improving the stirring effect, and the cover plate 28 is provided with a protrusion (not shown), which is inserted into the third cavity 241 and has an interference fit with the inner surface of the flange 24, and a sealing ring (not shown) is sleeved on the outer periphery of the protrusion, and the sealing ring seals the mating surface between the flange 24 and the protrusion, so that the overall sealing of the sampling pool 23 is good and the leakage-proof effect is good.

[0043] Please refer to Fig.13 and Fig.14 Preferably, the stirring mechanism 9 further includes a second detection component 94, a blocking rod 922 extending in the radial direction is fixed to the outer periphery of the driving column 92, the second detection component 94 includes a second signal emitting end 941 and a second signal receiving end 942 which are spaced opposite to each other, the blocking rod 922 rotates between the second signal emitting end 941 and the second signal receiving end 942 as the driving column 92 rotates, and the second detection component 94 detects the rotation speed and / or the rotation duration of the driving column 92 according to whether the blocking rod 922 blocks a signal such as infrared rays. Therefore, the second detection component 94 can accurately detect whether the stirring speed and the stirring duration are abnormal, thereby ensuring a good stirring effect on the liquid.

[0044] Please refer to Figure 2 , Figure 8 , Fig. 9 , Fig.13 and Fig.14 Preferably, the highly reliable electrolyte detection module further includes a controller such as a PLC, a single chip microcomputer, etc. (not shown), and the controller receives the detection results of the first detection component 72 and the second detection component 94 to control the rotation speeds of the drive motor 711 and the stirring motor 91 to match each other, so that the rotation speed of the stirring motor 91 satisfies the flow rate of the liquid supplied to the sampling pool 23 per unit time, so that the liquid entering the sampling pool 23 is stirred in a timely and sufficient manner. In this way, by jointly controlling the operation of the drive motor 711 and the stirring motor 91, the supply of liquid to the sampling pool 23 and the stirring of the liquid can be more matched.

[0045] Please refer to Figure 2Specifically, the first degassing module 61 and the second degassing module 62 are connected to each other through a conducting pipe 63, so that the two are connected in series to establish negative pressure degassing. Each degassing module can use a degassing tank. The degassing module 6 also includes a first bubble detector (not shown) and a second bubble detector (not shown). The first bubble detector is connected in series in the sample diluent pipeline 41, and the second bubble detector is connected in series in the cleaning liquid pipeline 42, so as to ensure that the bubbles in the sample diluent and the cleaning liquid are detected, and higher detection accuracy is guaranteed. A diluent supply needle 411 and a cleaning liquid supply needle 421 are respectively provided at the ends of the sample diluent pipeline 41 and the cleaning liquid pipeline 42. The lengths of the diluent supply needle 411 and the cleaning liquid supply needle 421 extending from the sample inlet 22 to the vertical through hole 29 are not equal to each other. Since the two supply needles adopt a length staggered design, the carryover contamination rate is reduced.

[0046] As another purpose, a biochemical analyzer is provided, comprising an electrolyte detection module with high reliability described in any of the above embodiments, the electrolyte detection module with high reliability can be assembled in the biochemical analyzer as a customized module, and the electrolyte detection module with high reliability can communicate with the host of the biochemical analyzer through a serial port. The biochemical analyzer has the beneficial technical effects brought about by the electrolyte detection module with high reliability described in any of the above embodiments, which will not be elaborated here. Therefore, the biochemical analyzer has the advantages of high working reliability and high detection accuracy.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrolyte detection module with high reliability, characterized in that: include: The electrode module comprises a plurality of ion selective electrodes which are sealed and tightly attached to each other, and an ion selective channel is formed between each of the ion selective electrodes; A sampling component, disposed upstream of the electrode module and having a sample inlet and a sampling pool, wherein the sample inlet can receive a sample to be tested; Waste liquid collection module; A pipeline module, including a sample diluent pipeline, a cleaning liquid pipeline and a waste liquid pipeline; A valve control module, including a sample diluent valve, a cleaning fluid valve and a waste fluid valve; A degassing module, comprising a first degassing module and a second degassing module; A driving module, providing driving force for the flow of sample diluent, cleaning fluid and waste fluid; The sample diluent flow driving force is used to drive a sample diluent contained in a sample diluent container to flow through the sample diluent pipeline in sequence through the first degassing module, the driving module, the sample diluent valve, the sampling cell, the electrode module, and under the action of the waste liquid flow driving force, through the waste liquid pipeline to flow into the waste liquid collection module; The cleaning liquid flow driving force is used to drive the cleaning liquid contained in the cleaning liquid container to flow through the cleaning liquid pipeline in sequence through the second degassing module, the driving module, the cleaning liquid valve, the sampling tank, the electrode module, and under the action of the waste liquid flow driving force, flow into the waste liquid collection module through the waste liquid pipeline; The driving module includes a driving component, a first detection component, a diluent plunger pump, a cleaning liquid plunger pump and a waste liquid plunger pump, the driving component includes a driving motor, a driving gear, a driven gear, a passive gear, a carrying plate, a movable plate, a guide rail and a slider, the carrying plate carries plungers of the diluent plunger pump, the cleaning liquid plunger pump and the waste liquid plunger pump, each of which is parallel to each other in a first direction, the driving motor drives the driving gear to rotate, the driven gear is connected to the passive gear for synchronous rotation, the driving gear is meshed with the driven gear, the first side portion of the movable plate is provided with a straight tooth section extending parallel to each plunger, the driven gear The movable gear is meshed with the spur gear segment, the bearing plate is drivingly connected to the movable plate, the movable plate is fixed to the slider, the slider is slidably connected to the guide rail, the first detection assembly includes a first signal transmitting end and a first signal receiving end opposite to each other with a spacing space, a baffle is provided on the second side of the movable plate opposite to the first side, the driving motor drives the movable plate to move along the guide rail through the slider to drive the baffle to reciprocate in the spacing space along the first direction, the first detection assembly detects the position of each plunger according to whether the baffle blocks the signal, and the position includes the highest position and the lowest position; The ion selective electrode comprises a chloride ion selective electrode, a potassium ion selective electrode and a sodium ion selective electrode, the electrode module also comprises a ground electrode, a reference electrode, a temperature sensor electrode, a transfer plate and a support and rotation member, the electrolyte detection module with high reliability also comprises a bracket, the bracket supports the electrode module and the sampling assembly, the transfer plate comprises a pair of spaced-apart pressure plates, a fixing plate and a transfer plate respectively connected to both ends of the pressure plates, the fixing plate is provided with a fixing hole, the transfer plate and the support and rotation member are respectively provided with a first transfer hole and a second transfer hole which are rotationally fixed by a fixing member, a rotating column is respectively fixed on both sides of the support and rotation member, the bracket is provided with a connecting column with a connecting hole and a pair of rotating holes, the rotating column and the rotating hole are correspondingly rotatably connected, the fixing hole and the connecting hole are connected by a fixing hole. A detachable fixing part is fixed to each other, and the waste liquid pipeline can pass between a pair of the pressure plates. The temperature sensor electrode is connected to the ion selection channel to detect the temperature of the liquid flowing through. The pressure plate is arranged in the direction of liquid flow in the ion selection channel. The ground electrode, chloride ion selection electrode, potassium ion selection electrode, sodium ion selection electrode, reference electrode and temperature sensor electrode are arranged in sequence. When the fixing part is in an installation state where the transfer plate is fixed, the pressure plate presses the temperature sensor electrode so that each adjacent electrode is tightly sealed to each other and the reference electrode presses against one side of the sampling component. When the fixing part is in a disassembly state where the transfer plate is released, the pressure of the pressure plate on the temperature sensor electrode is released, so that each electrode can be replaced.

2. The electrolyte detection module with high reliability according to claim 1, characterized in that: The waste liquid collection module includes a vertical waste liquid pool and a waste liquid guide seat, the waste liquid guide seat includes a fixed seat hole and a plug-in column, the bracket is provided with a fixed frame hole and a plug-in slot, the fixed seat hole and the fixed frame hole are fixedly connected by a fixing member, the plug-in column is plugged into the plug-in slot, the waste liquid guide seat is provided with a receiving channel, a discharge channel and an intermediate channel located between the receiving channel and the discharge channel, the receiving channel and the discharge channel extend in opposite vertical directions at both ends of the intermediate channel, the intermediate channel extends in a horizontal direction, and ... The liquid pool has a waste liquid diversion cavity extending in a vertical direction, the end of the discharge channel is connected to a discharge pipe, the discharge pipe is inserted into the discharge pipe in the waste liquid pool through a through hole on the bracket, the waste liquid pipeline includes a first waste liquid pipe, a second waste liquid pipe and a third waste liquid pipe, the waste liquid valve is set as a three-way valve, the first waste liquid pipe is connected to the electrode module and a valve port of the waste liquid valve, the second waste liquid pipe is connected to the waste liquid plunger pump and the other valve port of the waste liquid valve, the third waste liquid pipe is connected to the waste liquid guide seat and another valve port of the waste liquid valve, and the vertical waste liquid pool discharges the waste liquid.

3. The electrolyte detection module with high reliability according to claim 1, characterized in that: The electrolyte detection module with high reliability also includes a stirring mechanism, which includes a stirring motor, a driving column and a stirring paddle, and the stirring motor drives the driving column to rotate. The sampling assembly includes a sampling frame and a cover plate, and the sampling frame includes a first side frame plate, a pair of second side frame plates, a top frame plate and a bottom frame plate. The sampling pool is arranged in the sampling frame, and the cover plate is sealed and connected to the sampling frame relative to the first side frame plate. The first side frame plate is connected between the pair of second side frame plates. The sample inlet is arranged on the top frame plate. The outer surface of the first side frame plate is provided with a first cavity and a second cavity which are sequentially protruded and connected relative to the driving column. The inner surface of the first side frame plate is provided with a flange protruding around the outer circumference of the first cavity, and the flange surrounds a third cavity which is connected with the first cavity. The sampling pool includes the first cavity and the third cavity, and a first guide column with a vertical through hole is arranged between the flange and the top frame plate, and the vertical through hole connects the sample inlet with the The third cavity, a second flow guide column having an inclined through hole inclined downward relative to a horizontal plane is provided at the bottom of the flange, the inclined through hole penetrates a second side frame plate and connects the sample inlet and the electrode module, a pair of permanent magnets are provided on the outer surface of the driving column facing the first cavity, the driving column and the outer surface of the second cavity are opposite to each other, the stirring paddle includes a positioning plate and a rotating paddle, the positioning plate is fixed in the second cavity and is provided with a plate hole, the same central axis of the first cavity and the third cavity is located below the central axis of the second cavity in the vertical direction, the rotating paddle includes a rotating shaft, a rotating plate, a magnet and a hollow pulp block, the rotating shaft is fixedly connected to the rotating plate and rotatably inserted in the disk hole, the hollow pulp block is fixedly connected to the rotating plate to accommodate the magnet between the two, the magnet is attracted by a pair of permanent magnets, and the driving column drives the hollow pulp block in a magnetic driving manner to stir the liquids in the first cavity and the third cavity uniformly.

4. The electrolyte detection module with high reliability according to claim 3, characterized in that: A pair of limiting posts are provided on the bottom surface of the second cavity, and the positioning plate is provided with a pair of limiting holes correspondingly plugged into and matched with the limiting posts. The wedge-shaped free end of the hollow pulp block is located directly below the vertical through hole, and the cover plate is provided with a boss, which is plugged into the third cavity and interference fits with the inner surface of the flange. A sealing ring is sleeved on the outer periphery of the boss, and the sealing ring seals the mating surface between the flange and the boss.

5. The electrolyte detection module with high reliability according to claim 3, characterized in that: The stirring mechanism also includes a second detection component, a blocking rod extending in a radial direction is fixed to the outer periphery of the driving column, the second detection component includes a second signal emitting end and a second signal receiving end which are spaced opposite to each other, the blocking rod rotates between the second signal emitting end and the second signal receiving end as the driving column rotates, and the second detection component detects the rotation speed and / or rotation duration of the driving column according to whether the blocking rod blocks the signal.

6. The electrolyte detection module with high reliability according to claim 5, characterized in that: The highly reliable electrolyte detection module also includes a controller, which receives the detection results of the first detection component and the second detection component to control the rotational speeds of the drive motor and the stirring motor to match each other, so that the rotational speed of the stirring motor meets the flow rate of the liquid supplied to the sampling pool per unit time, so that the liquid entering the sampling pool is stirred timely and fully.

7. The electrolyte detection module with high reliability according to claim 3, characterized in that: The first degassing module and the second degassing module are connected to each other through an air duct. The degassing module also includes a first bubble detector and a second bubble detector. The first bubble detector is connected in series to the sample diluent pipeline, and the second bubble detector is connected in series to the cleaning liquid pipeline. A diluent supply needle and a cleaning liquid supply needle are respectively provided at the ends of the sample diluent pipeline and the cleaning liquid pipeline. The lengths of the diluent supply needle and the cleaning liquid supply needle extending from the sample inlet to the vertical through hole are unequal.

8. A biochemical analyzer, characterized in that The invention comprises an electrolyte detection module with high reliability as claimed in any one of claims 1 to 7.

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