A fully automatic laboratory liquid analysis device

Abstract

The present invention relates to the field of liquid analysis equipment, and discloses a fully automatic liquid analysis device for laboratory use, comprising: an analysis rack; an infrared spectrometer for analyzing liquids arranged on the analysis rack, the infrared spectrometer having a light source end; a storage tube arranged on the analysis rack, for storing a syringe containing liquid to be analyzed; an analysis platform arranged in the analysis rack, located at the bottom of the storage tube, a connecting platform slidably connected to the analysis platform; an analysis port provided on the connecting platform, the analysis port being used to store a glass slide, the liquid to be detected is dripped on the glass slide, and the depth of the analysis port is at least the thickness of two glass slides; the present invention significantly improves the processing efficiency, uniformity and analysis accuracy of liquid samples. The present application can effectively improve the spreading effect of liquids with high concentration and poor fluidity and ensure uniform distribution of liquid samples through the auxiliary blowing of a hot air unit, the precise operation of a smoothing component and the compression between glass slides.

Description

Technical Field

[0001] The invention relates to the technical field of liquid analysis equipment, and in particular to a fully automatic liquid analysis device for a laboratory. Background Art

[0002] In laboratories and industrial fields, the analysis of liquid samples is a vital task. The analysis of liquid samples with high concentrations has certain technical challenges due to their special physical and chemical properties. Liquids with high concentrations usually have high viscosity, optical absorption rate, conductivity or solute content, and are widely used in chemical, pharmaceutical, food, biotechnology and other fields. Accurate analysis of these liquids is of great significance for production quality control, process optimization, pollutant monitoring, etc.

[0003] Among them, liquids with higher concentrations have a significant characteristic of high viscosity compared to dilute solutions. When the solute content is high, the fluidity of the liquid is significantly reduced, which is manifested as high viscosity. For example, high-concentration syrups, polymer solutions or biological samples (such as protein concentrates). High viscosity increases the flow resistance of the liquid in the experimental equipment.

[0004] However, for liquids with high concentration and poor fluidity, the interaction between molecules inside the solution is strong, which makes it difficult for the liquid to flow. This is common in high-concentration polymer solutions, suspensions, biological samples, etc. Due to their high viscosity and low fluidity, it is difficult to achieve natural spreading during the detection process, and local accumulation and uneven distribution often occur, thus affecting the reliability of the test results. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a fully automatic laboratory liquid analysis device, aiming to alleviate the above problems at least to a certain extent.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A fully automatic laboratory liquid analysis device, comprising:

[0008] An analysis rack, an infrared spectrometer for analyzing liquids arranged on the analysis rack, the infrared spectrometer having a light source end; a storage tube arranged on the analysis rack, for storing a syringe containing liquids to be analyzed; an analysis platform arranged in the analysis rack, located at the bottom of the storage tube, a connection platform being slidably connected to the analysis platform; an analysis port arranged on the connection platform, the analysis port being used to store a glass slide;

[0009] A connecting frame disposed on the analysis platform, the connecting frame having a receiving port, and a plurality of glass slides disposed in the receiving port, the glass slides being used to cover the glass slides disposed in the analysis port; a hot air unit disposed in the connecting frame, the hot air flow output by the hot air unit being able to blow toward the connecting platform;

[0010] An injection component is arranged on the analysis frame, and a smoothing component is arranged between the analysis platform and the connection platform; wherein, the smoothing component can release a glass slide in the storage port into the analysis port when the connection frame is moved to the first preset position, and rotate the storage tube by a preset angle to allow the next syringe to correspond to the position of the analysis port; wherein, the smoothing component can synchronously move the connection platform when the connection frame is moved to the second preset position, and the connection platform moves toward the light source end of the infrared spectrometer; wherein, when the connection platform moves to the preset position, it can press the glass slide in the analysis port.

[0011] Preferably, a hot air cavity is opened in the connecting frame, the hot air unit is arranged in the hot air cavity, a plurality of air outlets are opened at the bottom of the hot air cavity, a connecting port is opened at the bottom of the analysis port, a plurality of hot air flow channels connected with the connecting port are opened at the top of the connecting platform, and the hot air flow channels have two groups, which are respectively located on both sides of the analysis port, and one end of the hot air flow channel connected with the connecting port faces the analysis port.

[0012] Preferably, the smoothing component includes a screw rotatably connected to the analysis platform, the connecting frame is threadedly connected to the screw, the screw is connected to a gear a, the analysis platform is connected to a motor, the driving shaft of the motor is connected to a gear b adapted to the gear a, and the gear b is an incomplete gear.

[0013] Preferably, the smoothing component also includes a connecting opening opened on the connecting frame, which is adapted to the analysis port, and a release opening is opened between the connecting opening and the storage port, and the height of the release opening is the same as the thickness of a glass slide at the bottom of the storage port. A release frame is slidably connected in the hot air cavity, one end of the release frame extends to one side of the storage port, and the other end extends to the outside of the connecting frame, and a spring a is connected to the connecting frame.

[0014] Preferably, the smoothing component also includes a connecting shaft rotatably connected to the analysis platform, the connecting shaft is connected to a gear c adapted to the gear b, a release shaft is rotatably connected to the analysis platform, a synchronous belt transmission mechanism is provided between the release shaft and the connecting shaft, the release shaft is connected to a gear d, a winding shaft is connected to one side of the connecting frame, a traction rope is connected to the winding shaft, one end of the traction rope is connected to the release frame, and the winding shaft is connected to a gear e adapted to the gear d.

[0015] Preferably, the smoothing component further comprises a worm wheel connected to the storage cylinder, the analysis rack is connected to a worm screw meshing with the worm wheel, and a chain transmission mechanism is connected between the connecting shaft and the worm screw.

[0016] Preferably, the chain transmission mechanism includes a sprocket a connected to the connecting shaft, a sprocket b is connected to the worm, a transmission chain is provided between the sprocket a and the sprocket b, and a ratchet mechanism is provided between the sprocket a and the connecting shaft.

[0017] Preferably, a slide groove is provided on the analysis platform, a push plate is slidably connected in the slide groove, a spring b is connected between the push plate and the slide groove, a connecting rod is rotatably connected to the push plate, one end of the connecting rod is rotatably connected to the connecting platform, the connecting platform is slidably connected to the analysis platform, and a spring c is connected to the analysis platform.

[0018] Preferably, a limiting plate is connected to the analysis platform, an oblique opening is provided on one side of the limiting plate, and a film taking port connected to the analysis port is provided at the bottom of the analysis platform.

[0019] Preferably, the injection component comprises an electric push rod connected to the analysis frame, the electric push rod is connected to a release plate, a pressure sensor is provided at the bottom of the release plate, and a controller is provided on the infrared spectrometer.

[0020] In summary, the present invention mainly has the following beneficial effects:

[0021] The present invention significantly improves the processing efficiency, uniformity and analysis accuracy of liquid samples. The present application can effectively improve the spreading effect of high-concentration, poorly fluid liquids and ensure uniform distribution of liquid samples through the auxiliary blowing of the hot air unit, the precise operation of the smoothing components and the compression between the glass slides. In particular, when processing high-viscosity liquids, the problems of local accumulation and uneven distribution are avoided, and the difficult problem of the liquid in the prior art being difficult to flow and affecting the analysis results due to the strong intermolecular interaction force is solved. Through the precise coordination of the storage tube and the injection component, the system realizes the precise release of the liquid sample, and at the same time, through the compression of the mobile connection frame and the glass slide, the uniform distribution of the liquid on the glass slide is further promoted, ensuring the stability and accuracy of the sample during the analysis process. In addition, the automated operation of the system reduces manual intervention, improves the efficiency and repeatability of liquid sample processing, and ensures the accuracy and reliability of the liquid component analysis results, and is particularly suitable for the analysis of high-concentration and low-fluidity liquid samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the analysis platform of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the smoothing component of the present invention;

[0025] Figure 4 It is a schematic diagram of the connection frame structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the connection platform structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the limiting plate of the present invention;

[0028] Figure 7 It is a schematic diagram of the ratchet mechanism structure of the present invention;

[0029] Figure 8 It is a schematic diagram of the storage tube structure of the present invention;

[0030] Fig. 9 is another schematic diagram of the connection frame structure of the present invention;

[0031] Fig.10 It is another schematic diagram of the connection frame structure of the present invention.

[0032] Reference numerals:

[0033] 100, analysis rack; 101, infrared spectrometer; 102, light source end; 103, storage tube; 104, analysis platform; 105, connection platform; 106, analysis port; 107, connection frame; 108, storage port; 109, hot air unit;

[0034] 110, hot air cavity; 111, air outlet; 112, connection port; 113, hot air flow channel;

[0035] 200, lead screw; 201, gear a; 202, motor; 203, gear b; 204, connection opening; 205, release opening; 206, release frame; 207, spring a; 208, connection shaft; 209, gear c; 210, release shaft; 211, synchronous belt transmission mechanism; 212, gear d; 213, take-up shaft; 214, traction rope; 215, gear e;

[0036] 300, worm wheel; 301, worm; 302, chain transmission mechanism; 303, sprocket a; 304, sprocket b; 305, transmission chain; 306, ratchet mechanism;

[0037] 400, slide groove; 401, push plate; 402, spring b; 403, connecting rod; 404, spring c; 405, limit plate; 406, oblique opening; 407, film taking opening;

[0038] 500, electric push rod; 501, release plate; 502, pressure sensor; 503, controller. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] refer to Figure 1-Figure 10 , a fully automatic laboratory liquid analysis device, comprising:

[0041] Analytical rack 100;

[0042] An infrared spectrometer 101 for analyzing liquids is disposed on the analysis frame 100, and the infrared spectrometer 101 has a light source end 102;

[0043] The storage cylinder 103 provided on the analysis rack 100 is used to store the syringe containing the liquid to be analyzed;

[0044] The analysis platform 104 disposed in the analysis rack 100 is located at the bottom of the storage tube 103, and a connection platform 105 is slidably connected to the analysis platform 104;

[0045] An analysis port 106 is provided on the connection platform 105. The analysis port 106 is used to store a glass slide. The liquid to be detected is dropped on the glass slide. The depth of the analysis port 106 is at least the thickness of two glass slides.

[0046] A connecting frame 107 is disposed on the analysis platform 104, and a receiving port 108 is provided on the connecting frame 107. A plurality of glass slides are also disposed in the receiving port 108, and the glass slides are used to cover the glass slides disposed in the analysis port 106;

[0047] A hot air unit 109 is disposed in the connection frame 107, and the hot air flow output by the hot air unit 109 can be blown toward the connection platform 105;

[0048] The injection component provided on the analysis frame 100 is used to push the piston of the syringe downward, and the injection component can quantitatively release the liquid to be analyzed in the syringe into the analysis port 106;

[0049] A smoothing component provided between the analysis platform 104 and the connection platform 105, used to move the connection frame 107 to smooth the liquid to be analyzed released into the analysis port 106;

[0050] The smoothing component can release a glass slide in the receiving port 108 into the analysis port 106 when the movable connecting frame 107 moves to the first preset position, and rotate the storage tube 103 by a preset angle so that the next syringe corresponds to the position of the analysis port 106;

[0051] The smoothing component can move the connecting platform 105 synchronously when the connecting frame 107 is moved to the second preset position, and the connecting platform 105 moves toward the light source end 102 of the infrared spectrometer 101;

[0052] Wherein, when the connecting platform 105 moves to a preset position, it can press the glass slide in the analysis port 106;

[0053] By setting up the storage tube 103, when in use, the operator can draw the liquid that needs to be analyzed and tested into the syringe through the medical injection syringe, and insert the syringe into the storage tube 103, and the storage tube 103 will classify and store the liquid to be analyzed. One of the syringes corresponds to the position of the analysis port 106 on the connecting platform 105, and the glass slide used to carry the liquid can be stored in the analysis port 106. When performing analysis work, the piston component of the syringe can be pressed down by the injection component, and the hot air unit 109 can be started. The hot air input by the hot air unit 109 can be blown toward the connecting platform 105. The injection component allows the piston to move downward by a preset distance, and the liquid will be accurately released on the surface of the glass slide. At this time, the position of the connecting frame 107 can be moved by the smoothing component. When the connecting frame 107 moves to the first preset position, it vertically corresponds to the position of the analysis port 106. During the movement of the connecting frame 107, the hot air flow output by the hot air unit 109 can pass through the analysis port 106 as the connecting frame 107 moves, and can blow hot air to the liquid on the glass slide in the analysis port 106, thereby improving the fluidity of the liquid, promoting the liquid to spread evenly on the surface of the glass slide, and eliminating bubbles or uneven areas that may exist on the surface of the liquid. In addition, when the connecting frame 107 moves to the first preset position, the smoothing component can release a glass slide in the storage port 108 into the analysis port 106, and rotate the storage cylinder 103 to a preset angle, so that the next syringe corresponds to the position of the analysis port 106. Since a glass slide has been stored in the analysis port 106, the glass slide released in the storage port 108 will cover another glass slide, squeeze the liquid on the glass slide, and further promote the uniform distribution of the liquid between the glass slides, ensuring that the liquid is spread more evenly on the glass slide. At the same time, the storage tube 103 is rotated to further ensure that the new syringe can be accurately docked at the position of the analysis port 106, preparing for the next round of liquid analysis operations. By rotating the angle of the storage tube 103, the next syringe can be accurately positioned below the analysis port 106, ensuring that each liquid release can be performed at the same position. After the work of releasing the glass slide is completed, the smoothing component continues to work, and at this time the connecting platform 105 will move along the preset path and gradually approach the light source end 102 of the infrared spectrometer 101. During this process, the movement of the connecting platform 105 is not only to bring the glass slide into the analysis area of ​​the infrared spectrometer 101, but also to compress the glass slide. This compression effect helps to further even out the distribution of the liquid, making the thin layer of liquid more stable and flat. The movement of the connecting platform 105 will eventually accurately position the glass slide in the measurement area of ​​the infrared spectrometer 101, ensuring that the liquid sample is within the effective detection range of the analytical instrument. When the light source end 102 of the infrared spectrometer 101 analyzes the liquid sample, the light source illuminates the liquid through the glass slide, and the infrared spectrometer 101 will obtain the spectral data of the liquid components in real time according to the liquid's absorption characteristics of light of different wavelengths.The technical solution of the present application can efficiently complete the preparation, uniform spreading and infrared spectral analysis of liquid samples through multiple automated control technologies, providing precise support for the detection of liquid components. The key feature of the system is the automation of its liquid sample preparation, which uses multiple components such as the storage cylinder 103, injection component, hot air unit 109, smoothing component and connection platform 105 to work together to ensure the uniform distribution and stability of the liquid sample, improve the accuracy and repeatability of infrared spectral analysis, and solve the problem in the prior art that for liquids with high concentration and poor fluidity, the molecular interaction force inside the solution is strong, which makes it difficult for the liquid to flow, often resulting in local accumulation and uneven distribution, thereby affecting the reliability of the analysis and detection results.

[0054] As a further solution of the present invention, a hot air cavity 110 is provided in the connection frame 107, a hot air unit 109 is provided in the hot air cavity 110, a plurality of air outlets 111 are provided at the bottom of the hot air cavity 110, a connection port 112 is provided at the bottom of the analysis port 106, a plurality of hot air channels 113 connected to the connection port 112 are provided at the top of the connection platform 105, the hot air channels 113 have two groups, which are respectively located on both sides of the analysis port 106, and one end of the hot air channel 113 connected to the connection port 112 faces the analysis port 106;

[0055] By setting the hot air cavity 110, when the hot air unit 109 is working, the hot air flow outputted by it will be blown to the air outlet 111 through the hot air cavity 110. During the movement of the connecting frame 107, the hot air blown out from the air outlet 111 will pass through the liquid on the glass slide as the connecting frame 107 moves. This process helps to improve the fluidity of the liquid, promote the uniform spreading of the liquid, and reduce the bubbles or uneven areas that may appear on the surface of the liquid. In addition, when the connecting frame 107 moves to the first preset position, i.e., the position corresponding to the analysis port 106, the air outlet 111 can correspond to the position of the hot air flow channel 113, and a part of the hot air flow will enter the hot air flow channel 113. During the process of the smoothing component releasing the glass slide in the storage port 108 to the analysis port 106, the hot air flow will be blown to the bottom of the glass slide in the analysis port 106 through the hot air flow channel 113, further helping the liquid to be evenly distributed and accelerating its flow. In addition, two sets of hot air channels 113 are used to guide the hot air flow. When the hot air flow is blown to the bottom of the glass slide, the two hot air flows will collide with each other, and the air flow pressure generated will cause the glass slide to vibrate slightly, which will help to further promote the uniform spreading of the liquid on the surface of the glass slide. Through this tiny vibration, the molecules of the liquid can better overcome the viscosity between the molecules, so that the fluidity of the liquid can be enhanced, and the uniformity and stability of the liquid can be further improved. The tiny vibration can also avoid the local accumulation of liquid on the glass slide, reduce the analysis error caused by the uneven distribution of the liquid, especially when analyzing liquids with high concentrations or poor fluidity. It provides a more accurate and reliable experimental environment for infrared spectroscopy analysis.

[0056] As a further solution of the present invention, the smoothing component includes a screw 200 rotatably connected to the analysis platform 104, the connection frame 107 is threadedly connected to the screw 200, the screw 200 is connected to a gear a201, the analysis platform 104 is connected to a motor 202, the driving shaft of the motor 202 is connected to a gear b203 adapted to the gear a201, and the gear b203 is an incomplete gear;

[0057] By setting the motor 202, the motor 202 can be started when applied. When the driving shaft of the motor 202 rotates one circle, the screw 200 can be rotated to a preset angle through the gear b203 and the gear a201. The threaded structure of the screw 200 drives the connecting frame 107 to move along the axial direction of the analysis platform 104, which will make the connecting frame 107 move a preset distance to reach the first preset position, that is, the position of the analysis port 106, thereby achieving the purpose of allowing the connecting frame 107 to move accurately.

[0058] As a further solution of the present invention, the smoothing component also includes a connecting opening 204 opened on the connecting frame 107, adapted to the analysis port 106, a release opening 205 is opened between the connecting opening 204 and the receiving port 108, the height of the release opening 205 is the same as the thickness of a glass slide at the bottom of the receiving port 108, a release frame 206 is slidably connected in the hot air cavity 110, one end of the release frame 206 extends to one side of the receiving port 108, and the other end extends to the outside of the connecting frame 107, and a spring a207 is connected to the connecting frame 107;

[0059] By setting the release opening 205, when the operator stores multiple glass slides in the storage port 108, the bottom glass slide can correspond to the position of the release opening 205. When the connecting frame 107 rotates to the position of the analysis port 106 through the screw 200, the connecting opening 204 is aligned with the analysis port 106, and the release rack 206 moves accordingly. The movement of the release rack 206 can push the bottom glass slide into the connecting opening 204. Since the height of the release opening 205 is the same as the thickness of the bottom glass slide in the storage port 108, it is ensured that the glass slide can be smoothly pushed to the connecting opening 204. When the glass slide is completely pushed into the connecting opening 204, the glass slide is in an unsupported state at this time, and will slide downward along the path of the connecting opening 204 into the analysis port 106 due to its own gravity. The precise release of the glass slide and its smooth sliding help to spread the liquid evenly on the surface of the glass slide. Since the glass slide naturally slides to the analysis port 106 without external interference, the liquid is more evenly distributed on the glass slide, thereby avoiding uneven distribution or accumulation of liquid caused by manual operation.

[0060] As a further solution of the present invention, the smoothing component also includes a connecting shaft 208 rotatably connected to the analysis platform 104, the connecting shaft 208 is connected to a gear c209 adapted to the gear b203, a release shaft 210 is rotatably connected to the analysis platform 104, a synchronous belt transmission mechanism 211 is provided between the release shaft 210 and the connecting shaft 208, a gear d212 is connected to the release shaft 210, a reeling shaft 213 is connected to one side of the connection frame 107, a traction rope 214 is connected to the reeling shaft 213, one end of the traction rope 214 is connected to the release frame 206, and a gear e215 adapted to the gear d212 is connected to the reeling shaft 213;

[0061] By setting the gear c209, the gear b203 is an incomplete gear. When the motor 202 rotates the gear a201 and the lead screw 200 through the gear b203, so that the connection frame 107 moves to the top of the analysis port 106, the gear b203 is disengaged from the gear a201 and meshes with the gear c209. At this time, the rotation of the gear c209 can drive the connection shaft 208 to rotate. When the connection frame 107 moves to the top of the analysis port 106, the reel 213 follows the connection frame 107 to move to the top of the release shaft 210, and the gear e215 on the reel 213 can mesh with the gear d212. When the connecting shaft 208 is rotated by the driving force, the release shaft 210 can be rotated through the synchronous belt transmission mechanism 211. The release shaft 210 rotates the winding shaft 213 through the gear d212 and the gear e215. The winding shaft 213 winds up the traction rope 214, which can pull the release frame 206 to move, thereby achieving the purpose of releasing a glass slide in the analysis port 106 when the connecting frame 107 is moved to the first preset position (above the analysis port 106). In addition, after the subsequent analysis of the liquid is completed, the operator can take out the glass slide in the analysis port 106, and the drive shaft of the motor 202 rotates in the opposite direction to allow the lead screw 200 to rotate in the opposite direction to reset the connection frame 107 to the position above the analysis port 106. The gear b203 will mesh with the gear c209 again and drive the gear c209 to rotate. During this process, the release rack 206 will move again, and the release rack 206 can push the next glass slide into the analysis port 106, ensuring that the new glass slide can accurately receive and carry out the next round of liquid sample spreading and analysis. This design not only realizes the precise release of the glass slide, but also ensures the automation of each round of analysis through the coordinated work of the mechanical structure.

[0062] As a further solution of the present invention, the smoothing component further comprises a worm wheel 300 connected to the storage cylinder 103, a worm 301 meshing with the worm wheel 300 is connected to the analysis rack 100, and a chain transmission mechanism 302 is connected between the connecting shaft 208 and the worm 301;

[0063] By setting the chain transmission mechanism 302, the rotation of the connecting shaft 208 can drive the worm wheel 300 to rotate through the worm 301, so that the storage barrel 103 rotates accordingly. Specifically, when the connecting shaft 208 is driven to rotate, the rotation of the worm 301 will drive the worm wheel 300 to rotate, and then the angle and position of the storage barrel 103 are affected by the rotation of the worm wheel 300. The role of the chain transmission mechanism 302 is to ensure the precise synchronization of the rotation between the connecting shaft 208 and the worm 301, so that when the connecting frame 107 moves to the first preset position, the storage barrel 103 is rotated by a preset angle, so that the next syringe containing the liquid to be analyzed corresponds to the position of the analysis port 106, and prepares for the next analysis.

[0064] As a further solution of the present invention, the chain transmission mechanism 302 includes a sprocket a303 connected to the connecting shaft 208, a sprocket b304 is connected to the worm 301, a transmission chain 305 is arranged between the sprocket a303 and the sprocket b304, and a ratchet mechanism 306 is arranged between the sprocket a303 and the connecting shaft 208;

[0065] By setting up the ratchet mechanism 306, the setting of the ratchet mechanism 306 can only drive the worm 301 to rotate in one direction when the connecting shaft 208 rotates. That is, after the liquid analysis work is completed, when the position of the connecting frame 107 is reset, the worm 301 will not rotate to cause the storage tube 103 to reset and rotate to the original position.

[0066] As a further solution of the present invention, a slide groove 400 is provided on the analysis platform 104, a push plate 401 is slidably connected in the slide groove 400, a spring b402 is connected between the push plate 401 and the slide groove 400, a connecting rod 403 is rotatably connected to the push plate 401, one end of the connecting rod 403 is rotatably connected to the connecting platform 105, the connecting platform 105 is slidably connected to the analysis platform 104, and a spring c404 is connected to the analysis platform 104;

[0067] By setting the push plate 401, when the motor 202 continues to work and the gear b203 is disengaged from the gear c209, the gear b203 can mesh with the gear a201 again. At this time, the lead screw 200 continues to rotate, allowing the connecting frame 107 to continue to move along the predetermined path. During this process, the push plate 401 will be pushed to move the push plate 401. When the push plate 401 moves, the connecting platform 105 can slide along the predetermined path through the connecting rod 403. Through this design, when the connecting frame 107 moves to the second preset position, the connecting platform 105 can be accurately positioned close to the light source end 102 of the infrared spectrometer 101, ensuring that the glass slide can accurately enter the measuring area of ​​the spectrometer.

[0068] As a further solution of the present invention, a limiting plate 405 is connected to the analysis platform 104, an oblique opening 406 is provided on one side of the limiting plate 405, and a film taking port 407 connected to the analysis port 106 is provided at the bottom of the analysis platform 104;

[0069] By setting the limiting plate 405, when the connecting platform 105 moves close to the light source end 102 of the infrared spectrometer 101, it will reach the position of the limiting plate 405, and the oblique opening 406 opened on the limiting plate 405 can contact the glass slide on the analysis port 106, and as the connecting platform 105 moves, the glass slide will be restricted by the limiting plate 405, and a compressive force will be generated to compress the liquid, thereby ensuring the uniform distribution and stability of the liquid on the surface of the glass slide. The oblique opening 406 of the limiting plate 405 can provide a gradually uniform pressure distribution during the process of the glass slide being compressed, avoiding local excessive compression or unevenness, and ensuring that the thickness of the liquid on the glass slide is consistent. This uniform compression not only helps the stable spreading of the liquid, but also reduces the formation of bubbles and the uneven flow of the liquid, ensuring that the liquid sample is in the best state for analysis by the infrared spectrometer 101. In addition, the slide taking port 407 is provided to facilitate the subsequent work of analyzing the liquid. The operator can easily push out the glass slide in the analysis port 106 from the bottom of the slide taking port 407 to prepare for the next analysis.

[0070] As a further solution of the present invention, the injection component includes an electric push rod 500 connected to the analysis frame 100, a release plate 501 is connected to the electric push rod 500, a pressure sensor 502 is provided at the bottom of the release plate 501, and a controller 503 is provided on the infrared spectrometer 101;

[0071] By setting the electric push rod 500 and the pressure sensor 502, when multiple syringes extract liquid, the position of the piston in the syringe may be inconsistent due to operational errors, which will affect the accurate release of the liquid. In order to solve this problem, the pressure sensor 502 is used to monitor the pressure change of each syringe piston in real time. When the telescopic shaft of the electric push rod 500 begins to move, the release plate 501 will push downward, and the pressure sensor 502 detects the change in pressure and accurately determines the position of the piston. After the pressure sensor 502 contacts the piston, it continues to move downward until the piston moves downward by 1-3 mm (depending on the diameter of the syringe), and the electric push rod 500 will reset the release plate 501 to ensure that the amount and position of each liquid release are in line with expectations. In this way, the liquid release of each syringe can be accurately controlled, which not only ensures the uniform release of the liquid, but also avoids the problem of uneven liquid release caused by the different heights of the syringe pistons. In addition, the real-time feedback data provided by the pressure sensor 502 can be connected to the controller 503 on the infrared spectrometer 101 to form a closed-loop control system to ensure the accuracy and consistency of the release of the liquid sample. This automated control system effectively improves the accuracy of liquid sample preparation, reduces errors in manual operations, and also improves the reliability and repeatability of liquid analysis results.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic laboratory liquid analysis device, characterized in that: include: An analysis rack (100), an infrared spectrometer (101) for analyzing liquids and arranged on the analysis rack (100), the infrared spectrometer (101) having a light source end (102); a storage tube (103) arranged on the analysis rack (100), for storing a syringe containing liquid to be analyzed; an analysis platform (104) arranged in the analysis rack (100), located at the bottom of the storage tube (103), a connection platform (105) being slidably connected to the analysis platform (104); an analysis port (106) provided on the connection platform (105), the analysis port (106) being used to store a glass slide; A connecting frame (107) disposed on the analysis platform (104), the connecting frame (107) being provided with a storage opening (108), a plurality of glass slides also being disposed in the storage opening (108), the glass slides being used to cover the glass slides disposed in the analysis opening (106); a hot air unit (109) disposed in the connecting frame (107), the hot air flow output by the hot air unit (109) being capable of blowing toward the connecting platform (105); An injection component is arranged on the analysis rack (100), and a smoothing component is arranged between the analysis platform (104) and the connection platform (105); wherein the smoothing component can release a glass slide in the storage port (108) into the analysis port (106) when the connection frame (107) is moved to a first preset position, and rotate the storage tube (103) by a preset angle so that the next syringe corresponds to the position of the analysis port (106); wherein the smoothing component can synchronously move the connection platform (105) when the connection frame (107) is moved to a second preset position, and the connection platform (105) moves toward the light source end (102) of the infrared spectrometer (101); wherein the connection platform (105) can press the glass slide in the analysis port (106) when it moves to the preset position.

2. A fully automatic laboratory liquid analysis device according to claim 1, characterized in that: A hot air cavity (110) is provided in the connection frame (107), the hot air unit (109) is arranged in the hot air cavity (110), a plurality of air outlets (111) are provided at the bottom of the hot air cavity (110), a connection port (112) is provided at the bottom of the analysis port (106), a plurality of hot air flow channels (113) connected to the connection port (112) are provided at the top of the connection platform (105), the hot air flow channels (113) having two groups, which are respectively located on both sides of the analysis port (106), and one end of the hot air flow channel (113) connected to the connection port (112) faces the analysis port (106).

3. A fully automatic laboratory liquid analysis device according to claim 2, characterized in that: The smoothing component comprises a lead screw (200) rotatably connected to the analysis platform (104); the connection frame (107) is threadedly connected to the lead screw (200); a gear a (201) is connected to the lead screw (200); a motor (202) is connected to the analysis platform (104); a gear b (203) adapted to the gear a (201) is connected to the drive shaft of the motor (202); and the gear b (203) is an incomplete gear.

4. A fully automatic laboratory liquid analysis device according to claim 3, characterized in that: The smoothing component also includes a connecting opening (204) opened on the connecting frame (107) and adapted to the analysis port (106); a release opening (205) is opened between the connecting opening (204) and the storage port (108); the height of the release opening (205) is the same as the thickness of a glass slide at the bottom of the storage port (108); a release frame (206) is slidably connected in the hot air cavity (110); one end of the release frame (206) extends to one side of the storage port (108), and the other end extends to the outside of the connecting frame (107); and a spring a (207) is connected between the release frame (206) and the connecting frame (107).

5. A fully automatic laboratory liquid analysis device according to claim 4, characterized in that: The smoothing component also includes a connecting shaft (208) rotatably connected to the analysis platform (104), the connecting shaft (208) being connected to a gear c (209) adapted to the gear b (203), a release shaft (210) rotatably connected to the analysis platform (104), a synchronous belt transmission mechanism (211) being provided between the release shaft (210) and the connecting shaft (208), a gear d (212) being connected to the release shaft (210), a winding shaft (213) being connected to one side of the connection frame (107), a traction rope (214) being connected to the winding shaft (213), one end of the traction rope (214) being connected to the release frame (206), and a gear e (215) adapted to the gear d (212) being connected to the winding shaft (213).

6. A fully automatic laboratory liquid analysis device according to claim 5, characterized in that: The smoothing component further comprises a worm wheel (300) connected to the storage tube (103); the analysis rack (100) is connected to a worm (301) meshing with the worm wheel (300); and a chain transmission mechanism (302) is connected between the connecting shaft (208) and the worm (301).

7. A fully automatic laboratory liquid analysis device according to claim 6, characterized in that: The chain transmission mechanism (302) comprises a sprocket a (303) connected to the connecting shaft (208), a sprocket b (304) connected to the worm (301), a transmission chain (305) provided between the sprocket a (303) and the sprocket b (304), and a ratchet mechanism (306) provided between the sprocket a (303) and the connecting shaft (208).

8. A fully automatic laboratory liquid analysis device according to claim 1, characterized in that: The analysis platform (104) is provided with a slide groove (400), a push plate (401) is slidably connected in the slide groove (400), a spring b (402) is connected between the push plate (401) and the slide groove (400), a connecting rod (403) is rotatably connected to the push plate (401), one end of the connecting rod (403) is rotatably connected to the connecting platform (105), the connecting platform (105) is slidably connected to the analysis platform (104), and a spring c (404) is connected to the analysis platform (104).

9. A fully automatic laboratory liquid analysis device according to claim 1, characterized in that: The analysis platform (104) is connected to a limiting plate (405), one side of the limiting plate (405) is provided with an oblique opening (406), and the bottom of the analysis platform (104) is provided with a film taking port (407) connected to the analysis port (106).

10. The fully automatic laboratory liquid analysis device according to claim 1, characterized in that: The injection component comprises an electric push rod (500) connected to the analysis rack (100), a release plate (501) is connected to the electric push rod (500), a pressure sensor (502) is provided at the bottom of the release plate (501), and a controller (503) is provided on the infrared spectrometer (101).

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