Sample introduction device for electrolyte analyzer based on driving mechanism and electrolyte analyzer

Abstract

The invention belongs to the technical field of medical apparatus and instruments, and provides a driving mechanism-based sample introduction device for an electrolyte analyzer and the electrolyte analyzer in order to solve the problems of low detection efficiency and low working reliability of a sample introduction device of an existing electrolyte analyzer. The sampling device comprises: a housing; the sample introduction disc assembly is rotatably arranged in the shell and is provided with a plurality of sample introduction coil pipe positions, and each sample introduction coil pipe position can accommodate a test tube of which the outer surface is provided with an identification code; the rotating mechanism is arranged in the shell and drives the sample introduction disc assembly to rotate; the scanning mechanism and the driving mechanism are arranged in the shell, the test tube is driven by the rotating mechanism to move to a driving position capable of being driven by the driving mechanism, and the driving mechanism can drive the test tube located at the driving position to rotate relative to the scanning mechanism, so that the scanning mechanism scans the identification code on the test tube. The driving mechanism-based sampling device for the electrolyte analyzer and the electrolyte analyzer have the advantages that the detection efficiency is high, and the working reliability can be improved.

Description

[0001] This application is a divisional application of the invention patent application filed on August 13, 2024, with the invention name “Sampling device for electrolyte analyzer and electrolyte analyzer” and application number 202411105210.7. Technical Field

[0002] The present invention relates to the technical field of medical devices, and in particular to a sample injection device for an electrolyte analyzer based on a driving mechanism and an electrolyte analyzer. Background Art

[0003] The electrolyte analyzer is an instrument used to detect the content of electrolytes such as potassium ions, sodium ions, chloride ions, ionized calcium, and lithium ions from samples in test tubes. The samples can be whole blood, plasma, serum, or urine, etc. The sample is placed in a test tube, which is placed on the tube groove of the rotating disk of the injection device. The liquid sample in the test tube is sucked by a sampling needle, and then the liquid sample sucked by the sampling needle is transported to the ISE analysis system and TCO2 analysis system structure through the injection nozzle. After the sample is transported, the injection system returns to its own waste liquid port to clean the injection system flow path. After cleaning, the next sample is sampled, and the analysis system starts to analyze, and then the flow path of the self-device is cleaned.

[0004] However, at present, for the test tubes placed on the rotating disk of the existing sampling device, it is necessary to manually scan the identification code pasted on the test tube, and then manually input a number corresponding to the tube slot into the electrolyte analyzer, and then place the scanned test tube in the tube slot of the corresponding number on the rotating disk. This is not only time-consuming and labor-intensive, but also has a low degree of automation, resulting in low scanning efficiency. In addition, once the test tube is mistakenly placed in an inappropriate tube slot, the analysis data will not correspond to the tester, which reduces the work reliability.

[0005] Therefore, there is an urgent need to provide a sample injection device for an electrolyte analyzer and an electrolyte analyzer that have a high degree of automation and can improve working reliability. Summary of the invention

[0006] The present invention aims to solve the problems of low detection efficiency and low working reliability of the sample injection device of the above-mentioned existing electrolyte analyzer. To achieve one purpose of the present invention, a sample injection device for an electrolyte analyzer based on a driving mechanism is provided, comprising:

[0007] A housing, the housing comprising an outer shell and a second bottom shell, the outer shell comprising a second outer peripheral shell and an inner concave shell connected to the second outer peripheral shell;

[0008] The sample tray assembly is rotatably arranged in the housing and has a plurality of sample tray tube positions, each of which can accommodate a test tube with an identification code on the surface, and the sample tray assembly includes a second upper sample tray, a middle sample tray and a second lower sample tray which are fixedly connected in sequence;

[0009] A rotating mechanism, disposed in the housing and driving the sample tray assembly to rotate, the rotating mechanism comprising a third driving motor;

[0010] A scanning mechanism and a driving mechanism are provided in the housing, wherein the scanning mechanism is arranged between the second outer peripheral shell and the inner concave shell and scans the adjacent test tube through the first facing slot, the driving mechanism comprises a first driving motor and a second driving motor and a first gear and a second gear respectively fixed to the first driving motor and the second driving motor, the test tube is driven by the rotating mechanism to move to a driving position that can be driven by the driving mechanism, and the driving mechanism can drive the test tube located at the driving position to rotate relative to the scanning mechanism, so that the scanning mechanism completes scanning of the identification code on the test tube;

[0011] As a sampling device for an electrolyte analyzer based on a driving mechanism, further, the second outer shell is configured to have a truncated cone circumferential surface, the concave shell includes a connected inner shell and an inner platform shell, the inner platform shell is specifically a platform-shaped shell spaced apart from the second bottom shell, and a plurality of groups of interconnected first grooves and second grooves are respectively provided on the inner shell and the inner platform shell, and each group of first grooves and second grooves are respectively arranged in a radial direction on the inner shell and the inner platform shell, the first groove penetrates vertically downward along the upper part of the inner shell, and a second groove is formed on the inner platform shell beyond the through-through portion where the inner shell and the inner platform shell intersect, the scanning mechanism includes a fixed plate and a scanning component arranged at a free end of the fixed plate, and the fixed end of the fixed plate It can be fixed on the side surface of the concave shell facing the second outer peripheral shell or on the bottom surface facing the second bottom shell, and the fixing plate extends between the second outer peripheral shell and the concave shell, the first drive motor and the second drive motor are correspondingly installed at the second slot, the motors of the two drive motors are fixed on the inner side surface of the inner shell surrounding the second slot and facing the second bottom shell, and the output shafts of the two drive motors pass through the second slot and are respectively fixed to the first gear and the second gear, the first gear and the second gear are relatively located above the second slot and below the second lower sample tray, and relative to the second bottom shell, the projection of the second slot at least covers the projection of at least one second lower through slot located above the second slot.

[0012] As a sampling device for an electrolyte analyzer based on a drive mechanism, further, the third driving motor adopts a stepping motor and its output shaft is drivingly connected to the second upper sampling tray, the second upper sampling tray, the middle sampling tray and the second lower sampling tray are respectively provided with multiple and one-to-one corresponding second upper through grooves, middle through grooves and second lower through grooves, each corresponding second upper through groove, middle through groove and second lower through groove or each corresponding second upper through groove and middle through groove forms an sampling tray tube position, an upper opening, middle opening and lower opening facing each other are respectively arranged on the second upper sampling tray, the middle sampling tray and the second lower sampling tray to form an open position, and a liquid supplier is provided at a position below the cleaning position in the shell, and the liquid supplier is used to supply cleaning liquid or correction liquid to the sampling needle inserted therein.

[0013] As a sampling device for an electrolyte analyzer based on a driving mechanism, further, the second upper sampling disk is set to a disc shape, the middle sampling disk and the second lower sampling disk are both set to a ring shape, the second lower sampling disk also includes the second lower annular disk, the annular support plate located below the second lower annular disk and a plurality of connecting plates connecting the second lower annular disk and the annular support plate, a plurality of second lower through grooves are evenly arranged at the edge of the second lower annular disk in the radial direction, the middle sampling disk and the second lower sampling disk are respectively provided with an intermediate disk through hole and a lower disk through hole, a hollow circular boss is provided at the center position of the inner shell, the central axes of the circular boss, the intermediate disk through hole and the lower disk through hole coincide, in the radial direction, the inner circumferential surfaces of the intermediate disk through hole and the lower disk through hole are spaced opposite to the outer circumferential surface of the circular boss, the motor of the third driving motor is arranged inside the circular boss and the output shaft extends out of the circular boss, the output shaft of the third driving motor is connected to a driving member, and a A shaft sleeve is arranged, the driving member comprises a driving shaft, a rotating disk connected to the driving shaft and a protrusion connected to the driving shaft, the rotating disk and the protrusion are both set to be cylindrical, a force-bearing hole that is clamped with the output shaft of the third driving motor is arranged on the driving shaft along the central axis of the driving shaft, a plurality of clamping grooves distributed at radial angles are recessed on the upper surface of the rotating disk, a concave annular groove surrounding the outer circumference of the circular protrusion groove is also arranged on the inner surface of the second upper sample feeding disk, a protruding first annular plate and a second annular plate are arranged on the inner surface of the second upper sample feeding disk, the first annular plate is relatively located at the outer circumference of the concave annular groove, the second annular plate is relatively located at the outer circumference of the first annular plate, the central axes of the circular protrusion groove, the concave annular groove, the first annular plate and the second annular plate coincide, a plurality of reinforcing ribs distributed in the radial direction are arranged in the concave annular groove and between the first annular plate and the second annular plate, a plurality of clamping blocks distributed at equal angles in the radial direction are protrudingly arranged on the annular surface of the first annular plate facing the concave annular groove, the number of the clamping blocks is the same as the number of the clamping grooves and they are correspondingly clamped.

[0014] Furthermore, a protrusion and a transition groove passing through the diameter of the protrusion are provided on the top surface of the protrusion, and the inner surface of the second upper sample introduction plate is provided with a circular protrusion groove protruding outward, and the circular protrusion groove has a connected arc circumferential surface and a dome surface, and an opening and a pair of connecting holes are respectively provided on the dome surface and the arc circumferential surface, and the opening is plugged into and cooperated with the protrusion, and the transition groove includes a straight-through groove recessed from the top surface and an arc groove connected to the straight-through groove.

[0015] Furthermore, the arc center angle of the circular arc groove is greater than 300°, and an adapter shaft is rotatably inserted in the circular arc groove, the adapter shaft has a waist-shaped cross-section, two ends of the adapter shaft respectively pass through a connecting hole and are respectively inserted in a waist-shaped hole of a pull ring, and a shaft fixing hole arranged at each end of the adapter shaft is respectively opposite to a ring fixing hole on the pull ring and is respectively fixed by a ring fixing member, so that the pull ring can drive the adapter shaft to rotate in the adapter groove, the adapter shaft has an arc surface and a straight plane, the central axis corresponding to the arc surface coincides with the central axis corresponding to the arc groove, the arc surface and the groove surface of the arc groove are rotatably matched, the central angle of the arc surface is greater than the central angle of the intersection of the arc groove and the straight groove, and the pull ring is in a horizontal state when not in use due to its own gravity. When the pull ring is used to make it in an upright state, the adapter shaft rotates until the arc surface is opposite to the straight groove.

[0016] As a sampling device for an electrolyte analyzer based on a driving mechanism, further, the sampling device for an electrolyte analyzer also includes a second zero position detector arranged on the inner shell, the second zero position detector can be a zero position optical coupler detector and includes a second transmitter and a second receiver located on both sides of the circular support plate in the radial direction, the circular support plate is provided with a second notch, the signal emitted by the second transmitter is received by the second receiver through the second notch, and the other parts of the circular support plate except the second notch block the second receiver from receiving the signal emitted by the second transmitter, and the zeroing signal obtained by the second receiver after receiving the signal emitted by the second transmitter is used to supply cleaning fluid or calibration fluid to the sampling needle after the sampling disk assembly is rotated to the zeroing position.

[0017] As a sampling device for an electrolyte analyzer based on a driving mechanism, further, a third slot is provided at a position of the inner shell close to the liquid supplier, the third slot is close to the sampling needle and close to the open position when the sampling disk assembly is at zero position, the third slot is set as a straight slot, and a liquid level detector facing the straight slot is provided between the inner shell and the second outer shell, the liquid level detector is used to detect the liquid level in the test tube so as to control the distance that the sampling needle moves into the test tube.

[0018] As a sampling device for an electrolyte analyzer based on a driving mechanism, further, the second upper sampling tray includes multiple upper connecting columns, the second lower sampling tray includes multiple lower connecting columns, and the middle sampling tray includes multiple connecting seats with seat holes, and the two sides of the connecting seat are respectively abutted against an upper connecting column and a lower connecting column, and the lower connecting column is provided with a column hole, a second mounting hole and a support plate, and the second mounting hole is opened in the support plate, and a fixing piece with an internal thread is arranged in the upper connecting column, and a connecting piece with an external thread at one end passes through the column hole and passes through the second mounting hole and the seat hole in sequence, and the external thread of the connecting piece is threadedly fastened with the internal thread of the fixing piece, and the number of upper connecting columns, lower connecting columns, connecting seats and connecting pieces is equal, so that the second upper sampling tray, the middle sampling tray and the second lower sampling tray are tightly connected.

[0019] To achieve another object of the present invention, a driving mechanism-based electrolyte analyzer is provided, comprising a sampling needle and any of the above-mentioned sampling devices for driving mechanism-based electrolyte analyzers, wherein the sampling needle draws the sample in the test tube.

[0020] The beneficial effects of the present invention are:

[0021] The sample introduction device for an electrolyte analyzer based on a driving mechanism of the present invention and the electrolyte analyzer can automatically drive the test tube facing the scanning mechanism to rotate by setting a scanning mechanism and a driving mechanism, so that the scanning mechanism scans the identification code on the test tube, thereby having high working efficiency. Moreover, there is a corresponding relationship between the setting position of each sample introduction coil position in the sample introduction coil assembly and the rotation angle of the rotation mechanism, thereby ensuring that the scanning result of the identification code corresponds to the scanned test tube in the sample introduction coil position, thereby having high working reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1 This is a schematic diagram of the overall structure of a first embodiment of a sample injection device for an electrolyte analyzer of the present invention;

[0024] Figure 2 It is an exploded schematic diagram of Embodiment 1 of the sample injection device for an electrolyte analyzer of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of a first embodiment of a sample injection device for an electrolyte analyzer of the present invention;

[0026] Figure 4This is a schematic diagram of the internal structure of the first embodiment of the sample injection device for an electrolyte analyzer of the present invention;

[0027] Figure 5 It is a schematic diagram of the main structure of the first upper sample feeding plate in the upward direction of the sample feeding device for the electrolyte analyzer according to the first embodiment of the present invention;

[0028] Figure 6 It is a schematic diagram of the main structure of the first lower sample feeding plate in the upward direction of the sample feeding device for the electrolyte analyzer according to the first embodiment of the present invention;

[0029] Figure 7 It is a schematic diagram of the main structure of the first lower sample feeding plate in the top view direction of the sample feeding device for the electrolyte analyzer according to the first embodiment of the present invention;

[0030] Figure 8 It is a schematic diagram of the main structure of the driving disk in the upward direction of the sample injection device for the electrolyte analyzer of the present invention in the first embodiment;

[0031] Fig. 9 It is a schematic diagram of the main structure of the driving disk in the top view direction of the first embodiment of the sample injection device for the electrolyte analyzer of the present invention;

[0032] Fig.10 It is a schematic diagram of the main structure of the first bottom shell in the upward direction of the sample injection device for the electrolyte analyzer of the present invention in the first embodiment;

[0033] Fig.11 This is a schematic diagram of the main structure of the first bottom shell in the top view direction of the sample injection device for the electrolyte analyzer according to the first embodiment of the present invention;

[0034] Fig.12 This is a schematic structural diagram of a rotating shaft of a first embodiment of a sample injection device for an electrolyte analyzer of the present invention;

[0035] Fig.13 This is a schematic diagram of the overall structure of Embodiment 2 of the sample injection device for an electrolyte analyzer of the present invention;

[0036] Fig.14 This is an exploded schematic diagram of Embodiment 2 of the sample injection device for an electrolyte analyzer of the present invention;

[0037] Fig.15 This is a schematic structural diagram of a housing of a second embodiment of a sample injection device for an electrolyte analyzer of the present invention;

[0038] Fig.16 This is a schematic diagram of the internal structure of the second embodiment of the sample injection device for the electrolyte analyzer of the present invention;

[0039] Fig.17 It is a schematic diagram of the main structure of the second upper sample feeding plate in the upward direction of the sample feeding device for the electrolyte analyzer of the present invention;

[0040] Fig.18 It is a schematic diagram of the main structure of the second upper sample feeding plate in the top view direction of the sample feeding device for the electrolyte analyzer of the present invention;

[0041] Fig.19 It is an exploded schematic diagram of the middle sample introduction plate of the second embodiment of the sample introduction device for the electrolyte analyzer of the present invention;

[0042] Fig. 20 This is a schematic structural diagram of the second lower sample introduction plate of the second embodiment of the sample introduction device for the electrolyte analyzer of the present invention;

[0043] Fig.21 This is a schematic structural diagram of the second lower annular disk of the second embodiment of the sample injection device for the electrolyte analyzer of the present invention;

[0044] Fig. 22 This is a schematic diagram of the structure of a driving member of a second embodiment of a sample injection device for an electrolyte analyzer of the present invention;

[0045] Fig.23 It is an exploded schematic diagram of a pull ring and a transfer shaft of a second embodiment of a sample injection device for an electrolyte analyzer of the present invention;

[0046] Description of reference numerals:

[0047] 1. test tube; 11. shell; 111. top shell; 1111. maintenance hole; 112. first bottom shell; 1121. first peripheral shell; 1122. bottom plate; 1123. mounting seat; 11231. first mounting hole; 11232. flange; 12. sample tray assembly; 121. first upper sample tray; 1211. upper disc; 1212. handle; 1213. first upper through groove; 1214. first protruding truncated table; 1215. fixing column; 12151. fixing column hole; 122. first lower sample tray; 1221. first lower circular disc; 1222. first circular support plate; 1223. first connecting plate; 1224. first lower through groove; 1225. second circular support plate; 1226. second connecting plate; 1227 , second protruding truncated cone; 1228, fixing hole; 1229, first force-bearing part; 12210, second force-bearing part; 12211, countersunk hole; 13, rotating mechanism; 131, third driving motor; 132, belt; 133, first pulley; 134, second pulley; 135, rotating shaft; 1351, plug-in cylinder; 1352, connecting column hole; 136, bearing; 14, scanning mechanism; 15, driving mechanism; 151, first driving motor; 152, second driving motor; 153, first gear; 154, second gear; 16, driving disk; 161, first force-applying groove; 162, second force-applying groove; 163, plug-in protrusion; 1631, plug-in groove; 164, connecting disk hole; 165, protruding column; 1651 , concave hole; 166, connecting through hole; 17, first zero position detector; 171, first transmitter; 172, first receiver; 18, synchronization disk; 181, first notch; 21, shell; 211, outer shell; 2111, second outer shell; 2112, inner concave shell; 21121, inner shell; 211211, first slot; 211212, third slot; 21122, inner shell; 211221, second slot; 21123, round boss; 212, second bottom shell; 22, sample tray assembly; 221, second upper sample tray; 2211, second upper through slot; 2212, round protrusion slot; 2213, opening; 2214, connecting hole; 2215, concave ring groove; 2216, first circular ring plate; 2217 , second circular plate; 2218, block; 2219, upper connecting column; 22110, reinforcing rib; 22111, upper opening; 222, middle sample tray; 2221, middle through groove; 2222, middle plate through hole; 2223, connecting seat; 22231, seat hole; 2224, bayonet; 2225, middle opening; 223, second lower sample tray; 2231, second lower through groove; 2232, lower plate through hole; 2233, second lower circular plate; 2234, circular support plate; 2235, connecting plate; 2236, second notch; 2237, lower connecting column; 22371, column hole; 22372, second mounting hole; 22373, butt plate; 2238, lower opening; 23, rotating mechanism; 24, scanning mechanism;25. Driving mechanism; 251. First driving motor; 252. Second driving motor; 253. First gear; 254. Second gear; 26. Driving member; 261. Driving shaft; 262. Turntable; 2621. Card slot; 263. Boss; 2631. Protrusion; 2632. Transfer slot; 26321. Straight slot; 26322. Arc groove; 27. Second zero position detector; 28. Liquid level detector; 29. ​​Elastic buckle; 291. Card; 292. Shrapnel; 210. Transfer shaft; 2101. Shaft fixing hole; 2011. Pull ring; 20111. Waist-shaped hole; 20112. Ring fixing hole. ; DETAILED DESCRIPTION

[0048] 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.

[0049] As an object of the present invention, a sampling device for an electrolyte analyzer is provided, comprising a housing, a sampling tray assembly, a rotating mechanism, a scanning mechanism and a driving mechanism. The sampling tray assembly is rotatably disposed in the housing and is provided with a plurality of sampling tray positions, each of which can accommodate a test tube with an identification code on the outside, such as pasted on. In the present invention, the identification code is a barcode, and the identification code can contain the ID information such as the name and gender corresponding to the sample in the test tube to which it is pasted, or / and the detection information such as the sample category and detection items. The rotating mechanism is disposed in the housing and drives the sampling tray assembly to rotate, and the scanning mechanism and the driving mechanism are both disposed in the housing. The test tube moves to a driving position that can be driven by the driving mechanism under the drive of the rotating mechanism, and the driving mechanism can drive the test tube located at the driving position to rotate relative to the scanning mechanism, so that the scanning mechanism completes scanning of the identification code on the test tube. The inner diameter of the sample introduction coil position can be set to be slightly smaller than the outer diameter of the test tube, so that the test tube and the sample introduction coil position itself have an elastic interference fit, and preferably, an elastic clip is provided in at least one through groove of each sample introduction coil position, so that the test tube and the elastic clip can have a better elastic interference fit, thereby achieving reliable positioning of the test tube in the sample introduction coil position and being able to be plugged in and out.

[0050] The test tube is driven by the first drive motor to move to a driving position that can be driven by the drive mechanism. It can be understood that the driving position is also a scanning position that is scanned by the scanning mechanism. The drive mechanism can drive the test tube located at the driving position to rotate so that the scanning mechanism can complete the scanning. Preferably, when the test tube moves to the driving position, if the identification code of the test tube is directly relative to the scanning mechanism so that the scanning can be completed, the drive mechanism does not need to drive the test tube to rotate. If the identification code of the test tube is misaligned with the scanning mechanism, the scanning cannot be completed, so the drive mechanism needs to drive the test tube to rotate until the scanning is completed. Of course, the drive mechanism can also be set to be controlled to drive the test tube to rotate one circle as long as there is a test tube entering the driving position, or to stop rotating when it is scanned by the scanning mechanism.

[0051] Therefore, the sampling device for the electrolyte analyzer of the present invention can automatically drive the test tube in the sampling coil position facing the scanning mechanism to rotate by setting a scanning mechanism and a driving mechanism, so that the scanning mechanism scans the identification code on the test tube. Therefore, it has a high degree of automation, and there is a corresponding relationship between the setting position of each sampling coil position in the sampling coil assembly and the rotation angle of the rotating mechanism, so that there will be no situation where the scanning result of the identification code does not correspond to the scanned test tube in the sampling coil position. Therefore, it has a high working reliability.

[0052] Specifically, the driving mechanism includes a first driving motor and a second driving motor, and a first gear and a second gear that are respectively connected to the first driving motor and the second driving motor and are opposite to each other. The first gear and the second gear are located on opposite sides of the motion trajectory of the sample coil position. The driving position is located in the interval between the first gear and the second gear. The first gear and the second gear rotate in the same rotation direction. The first gear and the second gear are made of soft materials such as rubber and plastic, so that the test tube passes through the driving position by causing the first gear and the second gear to produce elastic deformation. In this way, the test tube can not only be reliably driven by the first gear and the second gear to rotate, but also can smoothly enter and exit relative to the driving position. After the rotating mechanism drives the test tube to move to the driving position, it stops driving. For the test tube located at the driving position, it can be under the action of two forces, preferably two parallel tangential forces, respectively acting on the outer peripheral wall of the test tube by the first gear and the second gear. More specifically, the two forces applied by the two gears on the outer peripheral wall of the tube generate two friction forces on the outer peripheral wall of the tube. The two friction forces respectively form two torques that can rotate the test tube along the central axis of the test tube and in a clockwise or counterclockwise direction. Thus, the barcode on the test tube rotates relative to the scanning mechanism so that it can be completely scanned by the scanning mechanism, and after the test tube has been scanned by the scanning mechanism, the rotating mechanism further drives the test tube away from the driving position. Therefore, by setting the first drive motor and the second drive motor to respectively drive the first gear and the second gear to rotate, not only the synchronization of the rotation of the first gear and the second gear is high, so that the test tube is driven to rotate at a uniform speed and stably, but also the rotation speed of the test tube is easy to control. When there are certain differences in the material or diameter of the test tube, the respective driving forces of the first drive motor and the second drive motor can be conveniently adjusted, that is, it can reliably adapt to the drive of different test tubes.

[0053] The following is a detailed description of the sample injection device for an electrolyte analyzer provided by the present invention in combination with two embodiments of the sample injection device for an electrolyte analyzer. Each embodiment of the sample injection device for an electrolyte analyzer can realize the inventive concept of the present invention and obtain the desired technical effect. The same components and the same combination of components in the sample injection device for an electrolyte analyzer can respectively realize the same functions, thereby obtaining the corresponding technical effects, and repeated contents will not be repeated. In addition, in the absence of conflict, the various embodiments can be selectively combined or deleted. The following detailed description of each embodiment is provided to obtain a clearer and more comprehensive understanding of the inventive concept of the present invention.

[0054] Example 1 of a sample injection device for an electrolyte analyzer

[0055] As this embodiment, please refer to Figures 1 to 12Specifically, the housing 11 includes a top shell 111 and a first bottom shell 112, the first bottom shell 112 includes a first peripheral shell 1121 and a bottom plate 1122 arranged in the first peripheral shell 1121, the sample tray assembly 12 includes a first upper sample tray 121 and a first lower sample tray 122 arranged in the first peripheral shell 1121 and located above the bottom plate 1122, the first upper sample tray 121 is fixedly connected to the first lower sample tray 122, the first upper sample tray 121 includes an upper disc 1211, a handle 1212 is provided at the center of the upper disc 1211, and a plurality of first upper discs 1211 are evenly provided along the first circle near the edge thereof. The through groove 1213, the first lower sample tray 122 includes a first lower circular ring disk 1221, a first circular ring support plate 1222 located below the first lower circular ring disk 1221 and a plurality of first connecting plates 1223 connecting the first lower circular ring disk 1221 and the first circular ring support plate 1222. The first lower circular ring disk 1221 is preferably evenly provided with a plurality of first lower through grooves 1224 corresponding to the first upper through grooves 1213 arranged along the first circle near its edge. The plurality of corresponding first upper through grooves 1213 and first lower through grooves 1224 respectively form a sample tray tube position. It can be known that the plurality of sample tray tube positions are arranged with equal central angles relative to the central axis. A first connecting plate 1223 is provided between each of the first lower through grooves 1224, the first upper through grooves 1213 and the first lower through grooves 1224 are both set to be circular grooves, and the first annular support plate 1222 supports the bottom of the test tube 1. In order to better support the bottom center of the test tube 1, in this embodiment, the center line of the projection of the first annular support plate 1222 on the first lower annular disk 1221 in the radial direction passes through the center of the projection of each first lower through groove 1224 on the first lower annular disk 1221. Therefore, the structure of the entire sample tray assembly 12 is compact and stable, and the test tube 1 can be reliably supported therein, so that the test tube 1 can rotate smoothly when driven by the driving mechanism 15.

[0056] Please refer to Figure 2 , Figure 3 and Fig.11 Specifically, the first gear 153 and the second gear 154 are arranged on the side of the base plate 1122 facing the sample tray assembly 12, and the output shafts of the first drive motor 151 and the second drive motor 152 are both penetrated through the corresponding plate holes of the base plate 1122. The first gear 153 and the second gear 154 are relatively located on both sides of the first circular support plate 1222 in the radial direction and exceed the first circular support plate 1222 in the axial direction. The test tube 1 is interference fit with the first gear 153 and the second gear 154 in the interval space. Therefore, the first gear 153 and the second gear 154 act on the relative bottom of the test tube 1, which will not block the scanning of the identification code on the test tube 1, and the test tube 1 can rotate vertically without deflection under the good limitation of a pair of first connecting plates 1223 and the first circular support plate 1222.

[0057] Please refer to Figures 3 to 7 Preferably, a plurality of first upper through grooves 1213 are evenly arranged along the second circle on the upper disk 1211, the second circle is concentric with the first circle, and the second circle is closer to the edge of the upper disk 1211 in the radial direction than the first circle, and the first lower annular disk 1221 also includes a plurality of first lower through grooves 1224 evenly arranged one by one corresponding to the first upper through grooves 1213 arranged along the second circle, a second annular support plate 1225 located below the first lower annular disk 1221, and a plurality of second connecting plates 1226 connecting the first lower annular disk 1221 and the second annular support plates 1225, each second connecting plate 1226 is located between two first lower through grooves 1224, and the second annular support plates 1225 are preferably The center line of the projection of the first lower circular disk 1221 in the radial direction passes through the center of the projection of each first lower through groove 1224 on the first lower circular disk 1221, the second circular support plate 1225 supports the bottom of the test tube 1, the first circular support plate 1222 is closer to the edge of the first lower circular disk 1221 in the radial direction than the second circular support plate 1225, the first gear 153 or the second gear 154 located between the first circular support plate 1222 and the second circular support plate 1225 is relatively far away from the test tube 1 supported by the second circular support plate 1225, and therefore, the first circular support plate 1222 and the second circular support plate 1225 will not interfere with any of the first gear 153 and the second gear 154. Since the sampling disk tube positions are arranged in two circles, the test tubes 1 located on different circles can be sampled separately only by controlling the radial movement of the sampling needle (not shown) relative to the central axis of the sampling disk assembly 12, thereby increasing the number of test tubes 1 that can be inspected in a single inspection operation. Moreover, the test tubes 1 that do not need to be scanned can be placed in the sampling disk tube positions arranged along the second circle as needed, which helps to save inspection time.

[0058] Please refer to Figure 2 , Figures 4 to 12Specifically, the rotating mechanism 13 includes a third driving motor 131, a belt 132, a first pulley 133, i.e., an input pulley, a second pulley 134, i.e., an output pulley, and a rotating shaft 135. The first driving motor 151, the second driving motor 152, the third driving motor 131, the belt 132, the first pulley 133, and the second pulley 134 are all arranged on a side surface of the bottom plate 1122 facing away from the sample tray assembly 12. The output end of the third driving motor 131 is connected to the first pulley 133, the belt 132 is sleeved on the first pulley 133 and the second pulley 134, and the two ends of the rotating shaft 135 are respectively driven and connected to the second pulley 134 and the first lower sample tray 122. The first upper sample tray 121 includes a first hollow protruding truncated platform 1214 extending on the upper disk 1211 toward the bottom plate 1122, a mounting seat 1123 is provided on the bottom plate 1122, a first mounting hole 11231 and a flange 11232 are provided in the mounting seat 1123, a rotating shaft 135 is passed through the first mounting hole 11231, and a set of bearings 136 provided on the rotating shaft 135 are arranged on both sides of the flange 11232. A plurality of fixing columns 1215 each having a fixing column hole 12151 are provided in the first protruding prism 1214. The first lower sample injection plate 122 also includes a hollow second protruding prism 1227 extending in a direction away from the first protruding prism 1214. The second protruding prism 1227 protrudes upward and extends from the inner circumference of the first lower circular disk 1221. The first protruding prism 1214 and the second protruding prism 1227 abut against each other and have the same outer diameter. A plurality of fixing holes 1228 are provided on the surface of the second protruding prism 1227. A plurality of fixing parts are respectively connected to the corresponding fixing column holes 12151 and the fixing holes 1228, so as to connect and fix the first upper sample injection plate 121 and the first lower sample injection plate 122.A first force-bearing portion 1229 and a second force-bearing portion 12210 are symmetrically arranged in the second protruding truncated platform 1227 relative to its central axis. A driving disk 16 is also arranged in the first protruding truncated platform 1214. The driving disk 16 includes a first force-applying groove 161 and a second force-applying groove 162 respectively matched with the first force-bearing portion 1229 and the second force-bearing portion 12210. Specifically, the force-bearing portion is configured to have a plurality of straight plates and arc convex surfaces, and the force-applying groove is configured to have a plurality of straight groove surfaces. The plurality of straight plates are abutted against the plurality of straight groove surfaces, so that the force transmission is reliable, and the arc convex surface is exposed from the corresponding force-applying groove surface. The provision of the arc convex surface can increase The strength of the force-bearing part is increased, and preferably, the first force-bearing part 1229 and the second force-bearing part 12210 are set to have different volumes, wherein the force-bearing part with a larger volume is set to be closer to the sample tray position at the starting position. Since the test tubes 1 are generally placed in sequence starting from the starting position according to the placement order of the test tubes 1, under certain circumstances, a plurality of test tubes 1 are arranged above the force-bearing part with a larger volume, while fewer test tubes 1 or even no test tubes 1 may be arranged above the force-bearing part with a smaller volume. In this case, the force-bearing part with a larger volume can receive a relatively larger force, which is conducive to the smooth start and stable rotation of the sample tray assembly 12. In this embodiment, the volume of the first force-bearing part 1229 is set to be larger than the volume of the second force-bearing part 12210. The driving disk 16 also includes a plug-in protrusion 163 and a connecting disk hole 164. The plug-in protrusion 163 is provided with a plug-in groove 1631. The connecting disk hole 164 is connected to the plug-in groove 1631. The plug-in groove 1631 is set as a circular groove hole with abutment groove surface, and the circular groove hole is a D-type hole. The other end of the rotating shaft 135 opposite to the one end connected to the pulley drive is provided with a plug-in cylinder 1351 that is plug-matched with the plug-in groove 1631 and has abutment cylindrical surface. The plug-in cylinder 1351 is a D-type cylinder. The top surface of the plug-in cylinder 1351 is provided with a connecting column hole 1352 corresponding to the connecting disk hole 164. The corresponding connecting disk hole 164 and the connecting column hole 1352 are connected and fixed by a connecting piece, so that one end of the rotating shaft 135 is connected to the first lower sample disk drive through the driving disk 16. Therefore, through the above arrangement, the rotating mechanism 13 can not only generate a driving force for the precise rotation angle of the sample injection tray assembly 12 , but also the driving force can be reliably transmitted to the first lower sample injection tray 122 and even the first upper sample injection tray 121 .

[0059] Please refer to Figure 6 and Fig. 9Preferably, a pair of countersunk holes 12211 are further provided on the table surface of the second protruding truncated table 1227, and a pair of protruding posts 165 corresponding to the countersunk holes 12211 are provided on the side of the driving disk 16 opposite to the first lower sample feeding disk 122, and each protruding post 165 is provided with a recessed hole 1651, and the driving disk 16 is provided with a pair of connecting through holes 166 respectively connected with each recessed hole 1651, and a balancing component (not shown) provided with a connecting hole is provided between a pair of corresponding countersunk holes 12211 and recessed holes 1651, and the balancing component can be a balancing block, a buffer block, etc., and a pair of connecting members are respectively connected with each corresponding connecting through hole 166 and the connecting hole to fix the balancing component between the driving disk 16 and the first lower sample feeding disk 122. Therefore, by providing the balancing component, it can be ensured that the driving disk 16 drives the first lower sample feeding disk 122 to rotate smoothly without shaking.

[0060] Please refer to Figure 2 and Figure 4 Preferably, the sample injection device for electrolyte analyzer also includes a first zero position detector 17 installed on a side surface of the bottom plate 1122 facing the first bottom shell 112 and a synchronous disk 18 fixedly connected to the second pulley 134. Preferably, the synchronous disk 18 is also fixedly connected to the rotating shaft 135. The first zero position detector 17 includes a first transmitter 171 and a first receiver 172 that are spaced and opposite to each other. The synchronous disk 18 is provided with at least one first notch 181 extending radially. In this embodiment, the first notch 181 is set to two. When the sample injection coil position is set to two circles, a first notch 181 can be used to detect whether the sample injection coil position of one circle is at the zero position. The signal emitted by the first transmitter 171 is received by the first receiver 172 through the first notch 181. The other parts of the synchronous disk 18 except the first notch 181 block the first receiver 172 from receiving the signal emitted by the first transmitter 171. When the first receiver 172 receives the signal emitted by the first transmitter 171, the zeroing signal obtained is used to rotate the sample injection disk assembly 12 to the zeroing position. Since the synchronous disk 18 rotates in high synchronization with the first upper sample tray 121 and the first lower sample tray 122, the accurate detection of the rotation angle of the synchronous disk 18 can accurately detect whether the sample tray assembly 12, especially the sample tray tube position initially set corresponding to the zero position, is in the zero position state.

[0061] Please refer to Figure 1Preferably, a maintenance hole 1111 is provided on the top shell 111, and a liquid supplier (not shown) is installed at a position below the maintenance hole 1111 on the bottom plate 1122. When the first receiver 172 receives the zeroing signal, the sample tray assembly 12 rotates to the zeroing position, and the sampling needle is driven to the top of the maintenance hole 1111 and then inserted into the liquid supplier, so that the sampling needle is supplied with cleaning liquid or calibration liquid. Therefore, based on the accurate detection that the sample tray assembly 12 is in the zero position state, the sampling needle can absorb the cleaning liquid or calibration liquid as needed, so that the electrolyte analyzer can be maintained in time.

[0062] Example 2 of Sample Injection Device for Electrolyte Analyzer

[0063] In this embodiment, the same or similar technical means and technical effects as those in the above embodiment can be obtained by reference, and no further description is given, and the two embodiments can be referenced and combined with each other. Figures 13 to 23Specifically, the sample tray assembly 22 includes a second upper sample tray 221, an intermediate sample tray 222 and a second lower sample tray 223 which are fixedly connected in sequence, and the rotating mechanism 23 includes a third driving motor. The third driving motor can be a stepping motor and its output shaft is drivingly connected to the second upper sample tray 221. The second upper sample tray 221, the intermediate sample tray 222 and the second lower sample tray 223 are respectively provided with multiple and one-to-one corresponding second upper through grooves 2211, intermediate through grooves 2221 and second lower through grooves 2231, and each corresponding second upper through groove 2211, intermediate through groove 2221 and second lower through groove 2231 or each corresponding second upper through groove 2211 and intermediate through groove 2221 forms a sample tray tube position. In this case, the sample tube position formed by the second upper through groove 2211, the middle through groove 2221 and the second lower through groove 2231 can be suitable for the placement of long test tubes, and the sample tube position formed by the second upper through groove 2211 and the middle through groove 2221 can be suitable for the placement of short test tubes. The sample tray assembly 22 can adapt to test tubes of different lengths. Since different test items often use test tubes of different lengths, the compatibility and use scenarios of the sample introduction device are improved. However, it should be noted that for short test tubes, since the position for pasting the identification code thereon is limited, it does not need to be driven by the driving mechanism 25. In addition, it is known that the second upper sample tray 221 is marked with corresponding numbers that increase in sequence and words such as deproteinization, activation of electrodes, etc., corresponding to each second upper through groove 2211, so as to facilitate the test tube to be accurately placed in the sample tube position of the corresponding number. In addition, the second upper sample tray 221, the middle sample tray 222 and the second lower sample tray 223 are respectively provided with an upper opening 22111, a middle opening 2225 and a lower opening 2238 facing each other to form an open position, and a liquid supplier is provided at a position below the cleaning position in the housing 21, and the liquid supplier is used to supply cleaning liquid or correction liquid to the sampling needle inserted therein. The liquid supplier can be connected to the correction liquid bottle group through a distribution valve, and the third driving motor drives the sample tray assembly 22 to rotate relative to the sampling needle. The sampling needle, driven by the driver driving it to move up and down, extends into the test tube for sampling or passes through the cleaning position and is inserted into the liquid supplier to receive the correction liquid from the correction liquid bottle group, so that the sampling needle can absorb the sample, cleaning liquid or correction liquid as needed.

[0064] Please refer to Figures 14 to 16Specifically, the housing 21 includes an outer shell 211 and a second bottom shell 212, the outer shell 211 includes a second outer shell 2111 and an inner concave shell 2112 connected to the second outer shell 2111, the second outer shell 2111 specifically has a truncated cone circumference, the inner concave shell 2112 includes an inner shell 21121 and an inner cone shell 21122 connected to each other, the inner cone shell 21122 is specifically a platform-shaped shell spaced from the second bottom shell 212, and the inner shell 21121 and the inner cone shell 21122 are respectively provided with A plurality of groups of interconnected first grooves 211211 and second grooves 211221. Preferably, each group of first grooves 211211 and second grooves 211221 are respectively arranged in a radial direction on the inner circumferential shell 21121 and the inner base shell 21122. The first grooves 211211 penetrate vertically downward along the upper part of the inner circumferential shell 21121 to form second grooves 211221 on the inner base shell 21122 at the through portion beyond the intersection of the inner circumferential shell 21121 and the inner base shell 21122. The first drive motor 251 and the second drive motor 252 are correspondingly installed at a second slot 211221. Specifically, the motors of the two drive motors are fixed on the inner side of the inner shell 21122 around the second slot 211221 and facing the second bottom shell 212, and the output shafts of the two drive motors pass through the second slot 211221 and are respectively fixed to the first gear 253 and the second gear 254. Alternatively, the motors of the two motors can be arranged in the second slot 211221 and the outer periphery of the motor is fixed to the inner side of the inner shell. The scanning mechanism 24 is arranged between the second outer shell 2111 and the inner concave shell 2112 and scans the adjacent test tube through the first facing slot 211211. Specifically, the scanning mechanism 24 includes a fixed plate and a scanning component such as a barcode scanner provided at a free end of the fixed plate. The fixed end of the fixed plate can be fixed on the side of the inner concave shell 2112 facing the second outer shell 2111 or on the bottom surface facing the second bottom shell 212, and the fixed plate extends between the second outer shell 2111 and the inner concave shell 2112. Preferably, the first slot 211211 is close to the position of the second bottom shell 212 corresponding to the zero position of the sample tray assembly 22. The first gear 253 and the second gear 254 are relatively located above the second slot 211221 and below the second lower sample tray 223. Relative to the second bottom shell 212, the projection of the second slot 211221 at least covers the projection of at least one second lower through slot 2231 located above the second slot 211221. Therefore, it can be ensured that each test tube passing between the first gear 253 and the second gear 254 can be driven to rotate, and the third driving motor further drives the test tube to move to the bottom of the sampling needle to receive sampling.

[0065] Please refer to Figures 17 to 20 , Fig. 22Preferably, the second upper sample tray 221 is set to a disc shape, the middle sample tray 222 and the second lower sample tray 223 are both set to a ring shape, the second lower sample tray 223 also includes a second lower circular ring tray 2233, a circular support plate 2234 located below the second lower circular ring tray 2233 and a plurality of connecting plates 2235 connecting the second lower circular ring tray 2233 and the circular support plate 2234, a plurality of second lower through grooves 2231 are evenly arranged on the edge in the radial direction of the second lower circular ring tray 2233, the middle sample tray 222 and the second lower sample tray 223 are respectively provided with a middle tray through hole 2222 and a lower tray through hole 2232, and the inner shell 21122 is provided with a plurality of second lower through grooves 2231. A hollow circular boss 21123 is provided at the center position, and the central axes of the circular boss 21123, the middle disk through hole 2222 and the lower disk through hole 2232 coincide with each other. In the radial direction, the inner circumferential surfaces of the middle disk through hole 2222 and the lower disk through hole 2232 are spaced opposite to the outer circumferential surface of the circular boss 21123. The motor of the third drive motor is arranged inside the circular boss 21123 and the output shaft extends out of the circular boss 21123. The output shaft of the third drive motor is connected to a drive member 26. A sleeve can be arranged between the output shaft and the drive member 26. The drive member 26 includes a drive shaft 261 and a rotating disk 262 connected to the drive shaft 261. and a boss 263 connected to the drive shaft 261, the turntable 262 and the boss 263 are both set to be cylindrical, a force-bearing hole (not shown) for engaging with the output shaft of the third drive motor is set on the drive shaft 261 along the central axis of the drive shaft 261, a plurality of, for example, four, radially equiangularly distributed card grooves 2621 are concavely provided on the upper surface of the turntable 262, a concave annular groove 2215 surrounding the outer periphery of the circular protruding groove 2212 is further provided on the inner surface of the second upper sample feeding disk 221, a protruding first annular plate 2216 and a second annular plate 2217 are provided on the inner surface of the second upper sample feeding disk 221, and the first annular plate 2216 is relatively located in the concave annular groove 2215. The outer periphery of 215, the second annular plate 2217 is relatively located on the outer periphery of the first annular plate 2216, the central axes of the circular protrusion groove 2212, the concave annular groove 2215, the first annular plate 2216 and the second annular plate 2217 coincide with each other, and a plurality of reinforcing ribs 22110 distributed in the radial direction are provided in the concave annular groove 2215 and between the first annular plate 2216 and the second annular plate 2217, and a plurality of, for example, four, clamping blocks 2218 distributed at equal angles in the radial direction are protrudingly provided on the annular surface of the first annular plate 2216 facing the concave annular groove 2215, and the number of the clamping blocks 2218 is the same as that of the clamping groove 2621 and they are correspondingly clamped. Therefore, through the above arrangement, the driving force of the third driving motor can be reliably transmitted to the second upper sample tray 221, and the second upper sample tray 221 can rotate smoothly and accurately upon receiving the driving force, thereby ensuring the accuracy of the rotation angle of each test tube, so that the sampling position for receiving the sampling needle and the driving position for receiving the first gear 253 and the second gear 254 can be accurately in place.

[0066] Please refer to Fig.17 , Fig. 22 and Fig.23 Preferably, a protrusion 2631 and a transfer groove 2632 passing through the diameter of the protrusion 263 are provided on the top surface of the protrusion 263, and a circular protrusion groove 2212 protruding outward is provided on the inner surface of the second upper sample injection plate 221. The circular protrusion groove 2212 has a connected arc circumferential surface and a dome surface, and an opening 2213 and a pair of connecting holes 2214 are respectively provided on the dome surface and the arc circumferential surface. The opening 2213 is plugged and matched with the protrusion 2631, and the transfer groove 2632 includes a straight through groove 263 concave from the top surface 21 and an arc groove 26322 connected to the straight groove 26321, preferably, the arc center angle of the arc groove 26322 is greater than 300°, and a transfer shaft 210 is rotatably inserted in the arc groove 26322, and the transfer shaft 210 has a waist-shaped cross-section, and both ends of the transfer shaft 210 pass through a connecting hole 2214 and are respectively inserted into a waist-shaped hole 20111 of a pull ring 2011, and a shaft fixing hole 2101 provided at each end of the transfer shaft 210 is respectively connected to the pull ring The ring fixing hole 20112 on 2011 is opposite and respectively fixed by a ring fixing member such as a latch or a pin, so that the pull ring 2011 can drive the transfer shaft 210 to rotate in the transfer groove 2632. The transfer shaft 210 has an arc surface and a straight plane. The central axis corresponding to the arc surface coincides with the central axis corresponding to the arc groove 26322. The arc surface rotates with the groove surface of the arc groove 26322. The central angle of the arc surface is greater than the central angle of the arc groove 26322 and the straight groove 26322. 6321, so that the adapter shaft 210 cannot pass through the straight groove 26321 and disengage. The pull ring 2011 is in a horizontal state when not in use under the action of its own gravity. When the pull ring 2011 is used and put in an upright state, the adapter shaft 210 rotates to the arc surface opposite to the straight groove 26321, so that the pull ring 2011 can be lifted up to make the driving member 26, the second upper sample tray 221, the middle sample tray 222 and the second lower sample tray 223 all away from the housing 21. In this way, the pull ring 2011 has a foolproof function of preventing accidental rotation and lifting, which can effectively prevent the sample tray assembly 22 from being accidentally rotated, and ensure that the pull ring 2011 is compactly assembled and the force is reliable.

[0067] Please refer to Fig.14 , Fig. 20Preferably, the injection device for the electrolyte analyzer also includes a second zero position detector 27 arranged on the inner shell 21122. The second zero position detector 27 can be a zero position optical coupling detector and includes a second transmitter and a second receiver located on both sides of the circular support plate 2234 in the radial direction. The zero position can be understood as when the sampling needle is directly below the open position, the sampling disk assembly 22 is in the zero position. At this time, the sampling disk position closest to the open position in the clockwise direction is the first sampling disk position. A second notch 2236 is provided on the circular support plate 2234. The signal emitted by the second transmitter is received by the second receiver through the second notch 2236. The other parts of the circular support plate 2234 except the second notch 2236 block the second receiver from receiving the signal emitted by the second transmitter. The zeroing signal obtained by the second receiver receiving the signal emitted by the second transmitter is used to supply cleaning fluid or calibration fluid to the sampling needle after the sampling disk assembly 22 is rotated to the zeroing position. Since the second lower sample tray 223 rotates in high synchronization with the second upper sample tray 221 and the middle sample tray 222 , whether the sample tray assembly 22 is in the zero position can be accurately detected by accurately detecting the rotation angle of the second lower sample tray 223 .

[0068] Please refer to Fig.14 and Fig.15 Preferably, a third slot 211212 is provided at a position of the inner shell 21121 close to the liquid supplier, that is, the third slot 211212 is close to the sampling needle and close to the open position when the sampling tray assembly 22 is at the zero position. The third slot 211212 is set as a straight slot, and a liquid level detector 28 facing the straight slot is provided between the inner shell 21121 and the second outer shell 2111. The liquid level detector 28 is used to detect the liquid level in the test tube so as to control the distance that the sampling needle moves into the test tube.

[0069] Please refer to Fig.17 , Figures 19 to 21Preferably, the second upper sample tray 221 includes a plurality of upper connecting posts 2219, the second lower sample tray 223 includes a plurality of lower connecting posts 2237, the middle sample tray 222 includes a plurality of connecting seats 2223 with seat holes 22231, the two sides of the connecting seats 2223 are respectively abutted against an upper connecting post 2219 and a lower connecting post 2237, the lower connecting post 2237 is provided with a post hole 22371, a second mounting hole 22372 and abutting plate 22373, the second mounting hole 22372 is opened at the abutting plate In the plate 22373, a fixing member with an internal thread is arranged in the upper connecting column 2219, and a connecting member with an external thread at one end passes through the column hole and passes through the second mounting hole 22372 and the seat hole 22231 in sequence, and the external thread of the connecting member is threadedly fastened with the internal thread of the fixing member, and the number of the upper connecting column 2219, the lower connecting column 2237, the connecting seat 2223 and the connecting member is equal, so that the second upper sample tray 221, the middle sample tray 222 and the second lower sample tray 223 are fastened and connected. Therefore, by fixing the middle sample tray 222 with the second upper sample tray 221 and the second lower sample tray 223 on both sides in the form of multiple connecting columns, not only can the rotation reliability and synchronization of the three sample trays be high, but also the internal space is saved, which is conducive to configuring more sample tray tube positions and increasing the number of test tubes that can be tested in a single test operation.

[0070] In addition, for the above two embodiments, elastic clips are arranged in the first upper through groove 1213 of the first upper sample tray 121 in Example 1 and in the middle through groove 2221 of the middle sample tray 222 in Example 2. Please refer to the figure. Taking Example 2 of the sample injection device for the electrolyte analyzer as an example, the elastic clips 29 surround a hollow portion allowing the test tube 1 to be inserted, and the groove edge of the middle through groove 2221 is provided with a bayonet 2224. The elastic clip 29 includes a card 291 corresponding to the bayonet 2224 and a plurality of spring pieces 292 elastically pressed against the test tube passing therethrough, thereby further improving the reliability of the arrangement of the test tube 1 in the sample tray tube position, ensuring that the test tube 1 can rotate smoothly when driven by the driving mechanism 15 in Example 1 or the driving mechanism 25 in Example 2.

[0071] In addition, the connecting members and fixing members described above may be bolts, screws, studs, etc. as needed, and correspondingly, the holes that match the connecting members and fixing members may be threaded holes.

[0072] As another purpose, an electrolyte analyzer is provided, including a sampling needle and any one of the above sampling devices for electrolyte analyzers, the sampling needle absorbs the sample in the test tube, the electrolyte analyzer has the beneficial technical effects brought by any one of the above sampling devices for electrolyte analyzers, which will not be elaborated here, and thus, the electrolyte analyzer has the advantages of high degree of automation and high working reliability.

[0073] 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. A sample injection device for an electrolyte analyzer based on a driving mechanism, characterized in that: include: A housing, the housing comprising an outer shell and a second bottom shell, the outer shell comprising a second outer peripheral shell and an inner concave shell connected to the second outer peripheral shell; The sample tray assembly is rotatably arranged in the housing and has a plurality of sample tray tube positions, each of which can accommodate a test tube with an identification code on the surface, and the sample tray assembly includes a second upper sample tray, a middle sample tray and a second lower sample tray which are fixedly connected in sequence; A rotating mechanism, disposed in the housing and driving the sample tray assembly to rotate, the rotating mechanism comprising a third driving motor; A scanning mechanism and a driving mechanism are provided in the shell, wherein the scanning mechanism is arranged between the second outer shell and the inner concave shell and scans the adjacent test tube through the first facing slot, the driving mechanism comprises a first driving motor and a second driving motor and a first gear and a second gear respectively fixed to the first driving motor and the second driving motor, the test tube is driven by the rotating mechanism to move to a driving position that can be driven by the driving mechanism, and the driving mechanism can drive the test tube located at the driving position to rotate relative to the scanning mechanism, so that the scanning mechanism completes scanning of the identification code on the test tube.

2. The sample injection device for an electrolyte analyzer based on a driving mechanism according to claim 1, characterized in that: The second outer shell is configured to have a truncated cone circumferential surface, and the concave shell includes a connected inner shell and an inner cone shell, and the inner cone shell is specifically a platform-shaped shell spaced from the second bottom shell, and a plurality of groups of interconnected first grooves and second grooves are respectively provided on the inner shell and the inner cone shell, and each group of first grooves and second grooves are respectively arranged in a radial direction on the inner shell and the inner cone shell, and the first groove passes vertically downward along the upper part of the inner shell, and a second groove is formed on the inner cone shell beyond the through part where the inner shell and the inner cone shell intersect, and the scanning mechanism includes a fixed plate and a scanning component provided at a free end of the fixed plate, and the fixed end of the fixed plate can be fixed to the concave shell facing the second On the side of the outer peripheral shell or on the bottom surface facing the second bottom shell and the fixing plate extends between the second outer peripheral shell and the concave shell, the first driving motor and the second driving motor are correspondingly installed at the second slot, the motors of the two driving motors are fixed on the inner shell around the second slot and on the inner side surface facing the second bottom shell and the output shafts of the two driving motors pass through the second slot and are respectively fixed to the first gear and the second gear, the first gear and the second gear are relatively located above the second slot and below the second lower sample tray, and relative to the second bottom shell, the projection of the second slot at least covers the projection of at least one second lower through slot located above the second slot.

3. The sample injection device for electrolyte analyzer based on the driving mechanism according to claim 1, characterized in that: The third driving motor adopts a stepping motor and its output shaft is drivingly connected to the second upper sample tray. The second upper sample tray, the middle sample tray and the second lower sample tray are respectively provided with multiple and one-to-one corresponding second upper through grooves, middle through grooves and second lower through grooves. Each corresponding second upper through groove, middle through groove and second lower through groove or each corresponding second upper through groove and middle through groove forms a sample tray tube position. An upper opening, middle opening and lower opening facing each other are respectively arranged on the second upper sample tray, the middle sample tray and the second lower sample tray to form an open position. A liquid supplier is provided at a position below the cleaning position in the shell, and the liquid supplier is used to supply cleaning liquid or correction liquid to the sampling needle inserted therein.

4. The sample injection device for an electrolyte analyzer based on a driving mechanism according to claim 1, characterized in that: The second upper sample feed disk is set to a disc shape, the middle sample feed disk and the second lower sample feed disk are both set to a ring shape, the second lower sample feed disk also includes the second lower circular ring disk, the circular support plate located below the second lower circular ring disk and a plurality of connecting plates connecting the second lower circular ring disk and the circular support plate, a plurality of second lower through grooves are evenly arranged at the edge in the radial direction of the second lower circular ring disk, the middle sample feed disk and the second lower sample feed disk are respectively provided with a middle disk through hole and a lower disk through hole, a hollow circular boss is provided at the center position of the inner shell, the central axes of the circular boss, the middle disk through hole and the lower disk through hole coincide, in the radial direction, the inner circumferential surfaces of the middle disk through hole and the lower disk through hole are spaced opposite to the outer circumferential surface of the circular boss, the motor of the third drive motor is arranged inside the circular boss and the output shaft extends out of the circular boss, the output shaft of the third drive motor is connected to a drive member for driving, a bushing can be arranged between the output shaft and the drive member, and the drive member includes a drive The cam is an axially parallelogram structure, wherein the first and second axes are parallel to each other, and the axes of rotation are controlled by the control wheel. The cam is an isometric structure, wherein the axes of rotation are controlled by the control wheel. The axes of rotation are controlled by the control wheel.

5. The sample injection device for electrolyte analyzer based on the driving mechanism according to claim 4, characterized in that: A protrusion and a transfer groove passing through the diameter of the protrusion are provided on the top surface of the protrusion, and a circular protrusion groove protruding outward is provided on the inner surface of the second upper sample introduction plate. The circular protrusion groove has a connected arc circumferential surface and a dome surface, and an opening and a pair of connecting holes are respectively provided on the dome surface and the arc circumferential surface. The opening is plugged into and cooperates with the protrusion, and the transfer groove includes a straight-through groove recessed from the top surface and an arc groove connected to the straight-through groove.

6. The sample injection device for electrolyte analyzer based on the driving mechanism according to claim 5, characterized in that: The arc center angle of the circular arc groove is greater than 300°, and an adapter shaft is rotatably inserted in the circular arc groove. The adapter shaft has a waist-shaped cross-section, and both ends of the adapter shaft pass through a connecting hole respectively and are respectively inserted in a waist-shaped hole of a pull ring, and a shaft fixing hole arranged at both ends of the adapter shaft is respectively opposite to a ring fixing hole on the pull ring and is respectively fixed by a ring fixing member, so that the pull ring can drive the adapter shaft to rotate in the adapter groove, and the adapter shaft has an arc surface and a straight plane, and the central axis corresponding to the arc surface coincides with the central axis corresponding to the arc groove, and the arc surface rotates with the groove surface of the arc groove, and the central angle of the arc surface is greater than the central angle of the intersection of the arc groove and the straight groove. Under the action of its own gravity, the pull ring is in a horizontal state when not in use. When the pull ring is used to make it in an upright state, the adapter shaft rotates until the arc surface is opposite to the straight groove.

7. The sample injection device for an electrolyte analyzer based on a driving mechanism according to claim 1, characterized in that: The injection device for the electrolyte analyzer also includes a second zero position detector arranged on the inner shell. The second zero position detector can be a zero position optical coupler detector and includes a second transmitter and a second receiver located on both sides of the circular support plate in the radial direction. The circular support plate is provided with a second notch. The signal emitted by the second transmitter is received by the second receiver through the second notch. The other parts of the circular support plate except the second notch block the second receiver from receiving the signal emitted by the second transmitter. The zeroing signal obtained by the second receiver after receiving the signal emitted by the second transmitter is used to supply cleaning fluid or calibration fluid to the sampling needle after the injection plate assembly is rotated to the zeroing position.

8. The sample injection device for electrolyte analyzer based on the driving mechanism according to claim 1, characterized in that: A third slot is provided at a position of the inner shell close to the liquid supplier, the third slot is close to the sampling needle and close to the open position when the sampling disk assembly is at zero position, the third slot is set as a straight slot, and a liquid level detector facing the straight slot is provided between the inner shell and the second outer shell, the liquid level detector is used to detect the liquid level in the test tube so as to control the distance that the sampling needle moves into the test tube.

9. The sample injection device for electrolyte analyzer based on the driving mechanism according to claim 1, characterized in that: The second upper sample tray includes a plurality of upper connecting posts, the second lower sample tray includes a plurality of lower connecting posts, the middle sample tray includes a plurality of connecting seats with seat holes, the two sides of the connecting seat are respectively abutted with an upper connecting post and a lower connecting post, the lower connecting post is provided with a post hole, a second mounting hole and a support plate, the second mounting hole is opened in the support plate, a fixing piece with an internal thread is arranged in the upper connecting post, a connecting piece with an external thread at one end passes through the post hole correspondingly and passes through the second mounting hole and the seat hole in sequence, and the external thread of the connecting piece is threadedly fastened with the internal thread of the fixing piece, and the number of the upper connecting post, the lower connecting post, the connecting seat and the connecting piece is equal, so that the second upper sample tray, the middle sample tray and the second lower sample tray are fastened and connected.

10. An electrolyte analyzer, characterized in that The invention comprises a sampling needle and a sampling device for an electrolyte analyzer based on a driving mechanism as described in any one of claims 1 to 9, wherein the sampling needle absorbs the sample in the test tube.

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