Containing device for liquid chromatogram mobile phase

Abstract

The utility model relates to the technical field of liquid chromatographs, in particular to a liquid chromatogram mobile phase containing device which comprises a base, a storage tank is fixedly mounted in the middle of the base, a filter assembly is movably mounted in the storage tank, and a lifting mechanism is fixedly mounted in the middle of the back of the base. A mobile phase enters the storage tank through the feeding hopper and is filtered through a large-area mesh enclosure formed by combining the conical first mesh enclosure and the cylindrical second mesh enclosure, the filtering efficiency is remarkably improved, in the filtering process, the second motor is started to drive the first auger and the second auger to rotate, the first auger and the second auger are tightly attached to the mesh enclosures, impurities are pushed to the bottom, and the filtering efficiency is improved. The upper end of the mesh enclosure is prevented from being blocked, and the device is always in an efficient filtering state, so that not only is the filtering efficiency of a mobile phase improved, but also the stability of the device in the filtering process is enhanced, the overall use reliability is ensured, and the device is more reliable in liquid chromatogram analysis due to the design.

Description

Technical Field

[0001] The present application relates to the technical field of liquid chromatographs, and in particular to a device for containing mobile phases of liquid chromatography. Background Art

[0002] The device for holding liquid chromatography mobile phase usually refers to the liquid storage bottle, which is a key component in the liquid chromatograph and is used to hold the mobile phase. The mobile phase is the solvent or solvent mixture used to carry the sample through the chromatographic column in liquid chromatography analysis. Liquid chromatographs are often used in industrial product testing. The commonly used mobile phases in liquid chromatographs are divided into polar, non-polar, volatile, and non-volatile types. The liquid storage bottle for holding the mobile phase is currently open to the air. The open mobile phase holding device has little effect on the commonly used non-volatile neutral mobile phase, but it has great limitations for mobile phases that easily absorb carbon dioxide or oxygen in the air and thus destroy the components of the mobile phase.

[0003] Through searching, Chinese patent announcement number "CN211385060U" discloses a liquid chromatography mobile phase containing device, including a bottle body, a fixing frame and a vacuum pump, the bottle body is arranged on the fixing frame, the vacuum pump is fixedly installed on the top of the bottle body, two arc-shaped baffles are arranged in the bottle body cavity, a degassing mold is arranged between the two arc-shaped baffles, and a detachable filter is arranged between the arc-shaped baffles on the left and right sides and the wall of the bottle body. The liquid chromatography mobile phase containing device, by opening the top bottle cover, pressing two pressing blocks to fit, the limit rod is fully extended into the movable bin, so that the filter can be quickly taken out from the inside of the bottle body, and after the impurities on the mesh body are cleaned, the two liquid inlet pipes are used to clean the bottle body. Because the diameter of the liquid inlet pipe is large, it is convenient to clean. Different from the narrow-mouth bottle in the prior art, the two pressing blocks are pressed again, and the convex end of the pressing block is clamped into the installation groove, so that the filter can be quickly installed in the bottle body, and the work efficiency is improved.

[0004] With respect to the above-mentioned related technologies, the utility model inventor found the following defects:

[0005] Although the above-mentioned device can assist in replacing the mesh cover during use, the overall structure of the mesh cover is relatively simple during its specific use. It cannot drive the impurities in the filtered mobile phase during use. If the mesh cover is blocked by attached impurities during use, the device must be opened to remove the mesh cover for cleaning. The operation is cumbersome and inconvenient. Once the mesh cover is blocked by attached impurities, it must be opened for cleaning. During use, the device needs to be opened frequently for cleaning. If the mesh cover is not cleaned, the mesh cover will inevitably be blocked by the filtered impurities, resulting in a low filtration efficiency of the mesh cover. Therefore, it needs to be improved. Utility Model Content

[0006] In order to improve the filtering and screening efficiency of the device and enhance the anti-blocking performance, the present application provides a liquid chromatography mobile phase containing device.

[0007] The present application provides a liquid chromatography mobile phase containing device, which adopts the following technical solution: comprising a base, a storage tank is fixedly installed in the middle of the base, a filter assembly is movably installed inside the storage tank, a lifting mechanism is fixedly installed in the middle of the back of the base, a stirring mechanism is fixedly installed on the top of the lifting mechanism, the bottom of the stirring mechanism is plugged into the inner side of the filter assembly, a discharge pipe is fixedly installed at the bottom of the storage tank, and a discharge mechanism is fixedly installed at the bottom of the discharge pipe;

[0008] The filter assembly includes a sleeve, which is arranged in a ring at equal intervals and fixed at the bottom of the storage tank. A plug rod is inserted into the interior of the sleeve, a first mesh cover is fixedly installed on the top of the plug rod, a second mesh cover is fixedly installed on the bottom of the first mesh cover, and the bottom of the second mesh cover passes through a discharge pipe and is connected to a discharge mechanism.

[0009] Optionally, the overall shape of the first mesh cover is conical, and the overall shape of the second mesh cover is set to be cylindrical.

[0010] Optionally, the discharge mechanism includes a discharge pipe, which is fixedly installed at the bottom of the storage tank, and an inner filter screen is fixedly installed inside the discharge pipe, a first solenoid valve is fixedly installed on one side of the discharge pipe, and a second solenoid valve is fixedly installed on the bottom of the discharge pipe, the input end of the second solenoid valve is connected to the interior of the screen, and the upper end of the discharge pipe is connected to the interior of the storage tank.

[0011] Optionally, the lifting mechanism includes a guide rail, which is fixedly installed in the middle of one side of the base, and a first motor is fixedly installed at the bottom of the guide rail, and a screw rod is fixedly installed at the output end of the first motor, and the screw rod is rotatably connected to the inside of the guide rail. A sliding rod is threadedly connected to the outer surface of the screw rod, and the outer end of the sliding rod is fixedly connected to the stirring mechanism.

[0012] Optionally, the overall cross-sectional shape of the inner part of the guide rail is a convex shape, the overall cross-sectional shape of the guide rail slide rod is also set to a convex shape, and the side shape of the slide rod is set to be L-shaped.

[0013] Optionally, the stirring mechanism includes a top cover, which is fixedly mounted on the outer end of the sliding rod, a fixing frame is fixedly mounted in the top middle of the top cover, the top of the fixing frame is fixedly connected to the outer end of the sliding rod, a second motor is fixedly mounted on the inner side of the fixing frame in the top middle of the top cover, a first auger is fixedly mounted on the output end of the second motor through the top cover, and a second auger is fixedly mounted on the bottom of the first auger.

[0014] Optionally, the overall shape of the first auger is conical, and the overall shape of the second auger is cylindrical. The first auger is plugged into the inner side of the first mesh cover, and the second auger is plugged into the inner side of the second mesh cover. The outer side of the first auger is fitted and connected to the inner wall of the first mesh cover, and the outer side of the second auger is fitted and connected to the inner wall of the second mesh cover.

[0015] Optionally, support legs are fixedly installed at equal intervals on the outer side of the base, support feet are fixedly installed on the outer ends of the support legs, and the lower ends of the support feet are configured to be conical in shape.

[0016] Optionally, a third solenoid valve is fixedly mounted on one side of the top of the top cover, and a feed pipe is fixedly mounted on the top of the third solenoid valve.

[0017] Optionally, the output end of the third solenoid valve passes through the top cover and is connected to the interior of the storage tank, a feed hopper is fixedly installed on the top of the feed pipe, and a sealing gasket ring is fixedly installed on the bottom of the top cover.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] 1. By setting up the filter assembly in coordination with the stirring mechanism, the device achieves efficient filtration and circulation. The mobile phase enters the storage tank through the feed hopper and is filtered through a large-area mesh cover composed of a conical first mesh cover and a cylindrical second mesh cover, which significantly improves the filtration efficiency. During the filtration process, the second motor is started to drive the first auger and the second auger to rotate. They fit tightly against the mesh cover and push impurities to the bottom to avoid clogging at the upper end of the mesh cover, ensuring that the device is always in a high-efficiency filtration state. This not only improves the filtration efficiency of the mobile phase, but also enhances the stability of the device during the filtration process, ensuring the reliability of the overall use. This design makes the device more reliable in liquid chromatography analysis.

[0020] 2. By setting up a lifting mechanism, the device realizes convenient operation and maintenance. When the first motor is started, the screw rod rotates accordingly, pushing the slide rod to slide up and down in the guide rail, so as to easily adjust the position of the top cover and the stirring mechanism. When the top cover rises, the stirring mechanism can be removed from the mesh cover for easy cleaning. At the same time, the connection between the plug rod and the sleeve ensures the stability of the mesh cover. If the mesh cover needs to be replaced, only the first mesh cover needs to be lifted and the plug rod needs to be pulled out. In addition, the structural design of the entire device makes maintenance and cleaning easy, which greatly improves the convenience of use and maintenance efficiency of the device. This innovative design makes the device more flexible during use and adapts to various practical operation needs.

[0021] 3. By setting up a discharge mechanism, the device realizes convenient mobile phase discharge and impurity cleaning. When the first solenoid valve is opened, the mobile phase is discharged through the gap between the discharge pipe and the inner filter screen; when the second solenoid valve is opened, the impurities in the first and second screens can be evenly discharged through the auger drive. This design not only simplifies the discharge process, but also avoids the frequent disassembly and assembly of the screens, making the cleaning work more efficient and convenient. At the same time, the coordinated work of the discharge mechanism and the filtering and stirring mechanism further improves the ease of use and operation of the device and optimizes the overall performance. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 2 is a schematic diagram of the structure of the rear view in the embodiment of the present application;

[0024] Figure 3 is a schematic diagram of the structure viewed from above in an embodiment of the present application;

[0025] Figure 4 It is a schematic diagram of the structure in a closed state in an embodiment of the present application;

[0026] Figure 5 This is a schematic diagram of the structure inside the storage tank in the embodiment of the present application;

[0027] Figure 6 is a schematic diagram of the structure of the filter assembly in the embodiment of the present application;

[0028] Figure 7 is a schematic structural diagram of a stirring mechanism in an embodiment of the present application;

[0029] Figure 8 It is a structural schematic diagram of the discharge mechanism in the embodiment of the present application.

[0030] Figure numerals: 1. base; 2. storage tank; 3. filter assembly; 31. sleeve; 32. plug rod; 33. first mesh cover; 34. second mesh cover; 4. lifting mechanism; 41. guide rail; 42. first motor; 43. screw rod; 44. slide rod; 5. stirring mechanism; 51. top cover; 52. fixing frame; 53. second motor; 54. first auger; 55. second auger; 56. third solenoid valve; 57. feed hopper; 58. sealing gasket; 59. feed pipe; 6. discharge pipe; 7. discharge mechanism; 71. discharge pipe; 72. inner filter mesh cover; 73. first solenoid valve; 74. second solenoid valve; 8. support leg; 9. support foot. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-8 This application is described in further detail.

[0032] The present application discloses a device for holding a liquid chromatography mobile phase. Figure 1 As shown, it comprises a base 1, a storage tank 2 is fixedly installed in the middle of the base 1, a filter assembly 3 is movably installed inside the storage tank 2, a lifting mechanism 4 is fixedly installed in the middle of the back of the base 1, a stirring mechanism 5 is fixedly installed on the top of the lifting mechanism 4, the bottom of the stirring mechanism 5 is plugged into the inner side of the filter assembly 3, a discharge pipe 6 is fixedly installed at the bottom of the storage tank 2, and a discharge mechanism 7 is fixedly installed at the bottom of the discharge pipe 6;

[0033] The filter assembly 3 includes a sleeve 31, which is arranged in a ring shape with equal intervals and fixedly installed at the bottom of the storage tank 2. A plug rod 32 is inserted into the sleeve 31, and a first mesh cover 33 is fixedly installed on the top of the plug rod 32. A second mesh cover 34 is fixedly installed on the bottom of the first mesh cover 33. The bottom of the second mesh cover 34 passes through the discharge pipe 6 and is connected to the discharge mechanism 7. The sleeves 31 are arranged in a ring shape with equal intervals at the bottom of the storage tank 2 to provide stable support for the plug rod 32. The plug rod 32 is inserted into the sleeve 31, and a first mesh cover 33 is fixedly installed on the top, while the bottom of the first mesh cover 33 is connected to the second mesh cover 34, forming an overall filtering system. This design not only increases the filtering area and improves the filtering efficiency, but also ensures the stability of the mobile phase when passing through. The coordinated use of the lifting mechanism 4 and the stirring mechanism 5 makes the device more flexible and convenient during use. By starting the lifting mechanism 4, the stirring mechanism 5 can be easily adjusted At the position inside the storage tank 2, when it is necessary to clean or replace the filter component 3, it is only necessary to lift the stirring mechanism 5 to a certain height for convenient operation. At the same time, the setting of the stirring mechanism 5 also helps to prevent the filter component 3 from being blocked, thereby ensuring the continuous stability of the filtering effect. The design of the discharge mechanism 7 fully considers the convenience of discharging the mobile phase and cleaning impurities. By controlling the solenoid valve switch in the discharge mechanism 7, the mobile phase can be discharged quickly. At the same time, when it is necessary to clean the impurities in the filter component 3, it is only necessary to start the corresponding second solenoid valve 74 to discharge the impurities through the drive of the stirring mechanism 5. This design avoids the trouble of frequent disassembly and assembly of the filter component 3 and improves the cleaning efficiency. The liquid chromatography mobile phase holding device achieves the goals of efficient filtration, convenient operation and maintenance through ingenious design and the coordinated work of components. It has important application value in liquid chromatography analysis and can provide reliable support for scientific research and production.

[0034] Please refer to Figure 1-Figure 2 and Figure 5-Figure 6The overall shape of the first mesh cover 33 is conical, and the overall shape of the second mesh cover 34 is set to be cylindrical. The first mesh cover 33 with a conical design has a larger filtering area, which can better disperse and filter impurities in the mobile phase, thereby improving the filtering efficiency. At the same time, the conical design also helps to guide the mobile phase to flow evenly, reduce the possibility of blockage, and maintain the stability of the filtering effect. Secondly, the cylindrical second mesh cover 34 is closely matched with the conical first mesh cover 33 to form a continuous filtering system. The cylindrical design allows the second mesh cover 34 to have a larger internal space, which can accommodate more mobile phase, and is also conducive to the uniform distribution and flow of the mobile phase therein. In addition, the cylindrical structure also has a higher structural stability, can withstand a certain amount of pressure and impact, and ensure the stable progress of the filtering process. The conical and cylindrical designs enable the first mesh cover 33 and the second mesh cover 34 to work together to achieve efficient filtration and stable flow.

[0035] Please refer to Figure 8 , the discharge mechanism 7 includes a discharge pipe 71, which is fixedly installed at the bottom of the storage tank 2, and an inner filter screen cover 72 is fixedly installed inside the discharge pipe 71. A first solenoid valve 73 is fixedly installed on one side of the discharge pipe 71, and a second solenoid valve 74 is fixedly installed at the bottom of the discharge pipe 71. The input end of the second solenoid valve 74 is connected to the inside of the screen cover, and the upper end of the discharge pipe 71 is connected to the inside of the storage tank 2. The discharge mechanism 7 includes a discharge pipe 71, which is fixedly installed at the bottom of the storage tank 2 as a channel for discharging mobile phase and impurities. An inner filter screen cover 72 is fixedly installed inside the discharge pipe 71. The function of this screen cover is to further filter out possible residual impurities to ensure the quality of the discharged mobile phase. A first solenoid valve 73 is fixedly installed on one side of the discharge pipe 71. By controlling the switch of the first solenoid valve 73, the opening and closing of the discharge pipe 71 can be controlled, thereby realizing rapid discharge of the mobile phase. When the mobile phase needs to be discharged, only the first solenoid valve 73 needs to be turned on. The magnetic valve 73, the mobile phase can be discharged smoothly through the discharge pipe 71. At the bottom of the discharge pipe 71, a second solenoid valve 74 is fixedly installed. The design of this solenoid valve is very clever. Its input end is connected to the inside of the inner filter screen cover 72. This means that when it is necessary to clean the impurities filtered out inside the filter component 3, it can be achieved by opening the second solenoid valve 74. By starting the stirring mechanism 5, the filtered impurities can be driven to the bottom of the discharge pipe 71 and discharged through the opened second solenoid valve 74. This design avoids the trouble of frequent disassembly and assembly of the filter component 3 and greatly improves the efficiency of the cleaning work. In addition, the upper end of the discharge pipe 71 is connected to the inside of the storage tank 2 to ensure that the mobile phase and impurities can smoothly enter the discharge pipe 71, and then discharge or cleaning is achieved through the control of the solenoid valve. The discharge mechanism 7 realizes the rapid discharge of the mobile phase and the convenient cleaning of impurities through the coordinated work of the discharge pipe 71, the inner filter screen cover 72, the first solenoid valve 73 and the second solenoid valve 74.

[0036] Please refer to Figure 1-Figure 2 The lifting mechanism 4 includes a guide rail 41, which is fixedly installed in the middle of one side of the base 1. A first motor 42 is fixedly installed at the bottom of the guide rail 41. A screw rod 43 is fixedly installed at the output end of the first motor 42. The screw rod 43 is rotatably connected to the inside of the guide rail 41. A slide rod 44 is threadedly connected to the outer surface of the screw rod 43. The outer end of the slide rod 44 is fixedly connected to the stirring mechanism 5. The main function of the lifting mechanism 4 is to adjust the position of the stirring mechanism 5 in the storage tank 2 to facilitate maintenance, replacement or cleaning of the filter assembly 3. 4 is exquisitely designed and easy to operate, which provides great convenience for the use of the device. Specifically, the lifting mechanism 4 includes a guide rail 41, which is fixedly installed in the middle of one side of the base 1, providing a stable track for the movement of the slide bar 44. At the bottom of the guide rail 41, a first motor 42 is fixedly installed, which is a key component for driving the lifting mechanism 4 to move. The output end of the first motor 42 is connected to the screw rod 43. When the motor is started, the screw rod 43 will rotate accordingly. The screw rod 43 is rotatably connected to the inside of the guide rail 41, and the outer surface of the screw rod is threadedly connected to the slide rod 44, since the screw rod 43 and the slide rod 44 are connected by a thread, when the screw rod 43 rotates, the slide rod 44 will move up and down along the guide rail 41. This threaded connection ensures the stability and accuracy of the movement of the slide rod 44. The outer end of the slide rod 44 is fixedly connected to the stirring mechanism 5, so when the slide rod 44 moves, the stirring mechanism 5 will also move accordingly. In this way, by controlling the forward and reverse rotation of the first motor 42, the position of the stirring mechanism 5 in the storage tank 2 can be easily adjusted, and the first net cover 33 and the second net cover can be quickly disassembled and assembled. 34. When it is necessary to maintain or replace the filter assembly 3, the stirring mechanism 5 only needs to be lifted to a certain height for convenient operation; and when the mobile phase needs to be stirred to prevent clogging, the stirring mechanism 5 can be lowered to a suitable position. It can be seen that the lifting mechanism 4 realizes the lifting function of the stirring mechanism 5 through the coordinated work of the guide rail 41, the first motor 42, the screw rod 43 and the slide rod 44, which provides great convenience for the maintenance and use of the device. This design not only improves the convenience of operation of the device, but also enhances its overall stability and reliability.

[0037] Please refer to Figure 1-Figure 2 and Figure 5-Figure 6The overall cross-sectional shape of the guide rail 41 is a convex shape, and the overall cross-sectional shape of the guide rail 41 slide bar 44 is also set to a convex shape. The side shape of the slide bar 44 is set in an L shape. The overall cross-sectional shape of the guide rail 41 is cleverly designed to be a convex shape. This design not only provides a stable and precise moving track for the slide bar 44, but also ensures that the slide bar 44 will not shake or deviate during the movement. The convex cross-sectional shape enhances the structural strength of the guide rail 41, so that it can withstand the pressure from the slide bar 44 and the stirring mechanism 5, ensuring the long-term stable operation of the lifting mechanism 4. Matching the guide rail 41 is the slide bar 44, whose overall cross-sectional shape is also set to a convex shape. This design enables the slide bar 44 to be tightly embedded in the guide rail 41, which is effective. The lifting mechanism 4 can realize smooth and stable lifting and lowering movement, and the convex-shaped slide bar 44 structure can also effectively resist the interference of external factors, such as vibration or impact, to ensure the accuracy and reliability of the lifting process. In addition, the side shape of the slide bar 44 is set in an L shape. This design not only enhances the structural strength of the slide bar 44, but also provides it with additional stability. During the lifting process, the L-shaped side can effectively disperse and resist forces from all directions, ensuring that the slide bar 44 always maintains a stable position. By designing the guide rail 41 and the slide bar 44 with a convex-shaped cross-section, as well as the slide bar 44 on the L-shaped side, the lifting mechanism 4 can provide sufficient support and strength while ensuring stable lifting. This design not only improves the operating convenience of the device, but also enhances its structural stability and durability.

[0038] Please refer to Figure 1-Figure 2 and Figure 6-Figure 7The stirring mechanism 5 includes a top cover 51, which is fixedly mounted on the outer end of the sliding rod 44, and a fixing frame 52 is fixedly mounted in the middle of the top of the top cover 51. The top of the fixing frame 52 is fixedly connected to the outer end of the sliding rod 44, and a second motor 53 is fixedly mounted on the inner side of the fixing frame 52 at the middle of the top of the top cover 51. The output end of the second motor 53 passes through the top cover 51 and a first auger 54 is fixedly mounted, and a second auger 55 is fixedly mounted on the bottom of the first auger 54. The stirring mechanism 5 includes a top cover 51, which is fixedly mounted on the outer end of the sliding rod 44 and moves with the lifting and lowering of the sliding rod 44. A fixing frame 52 is fixedly mounted in the middle of the top of the top cover 51. This fixing frame 52 not only provides a stable support for the stirring mechanism 5, but also is fixedly connected to the outer end of the sliding rod 44 through its top, thereby enhancing the stability of the entire stirring mechanism 5. In the middle of the top of the top cover 51, located on the inner side of the fixing frame 52, a second motor 53 is fixedly mounted. The motor 53 is the power source of the stirring mechanism 5. Its output end passes through the top cover 51 and is fixedly installed with a first auger 54. When the second motor 53 is started, it will drive the first auger 54 to rotate, thereby stirring the mobile phase in the storage tank 2. A second auger 55 is also fixedly installed at the bottom of the first auger 54. This double auger design can increase the range and effect of stirring, ensure that the mobile phase is fully stirred in the storage tank 2, and prevent impurities from being deposited on the filter component 3 and causing blockage. Through the control of the lifting mechanism 4, the stirring mechanism 5 can be conveniently lifted to different positions to adapt to filter components 3 of different heights, or for maintenance, replacement and other operations. This design not only improves the operating convenience of the device, but also enhances its overall flexibility and practicality. The stirring mechanism 5 is driven by the second motor 53. The double auger design realizes effective stirring of the mobile phase, prevents clogging of the filter component 3, and ensures the stability of the filtering effect.

[0039] Please refer to Figure 1-Figure 2 and Figure 6-Figure 7The overall shape of the first auger 54 is conical, and the overall shape of the second auger 55 is cylindrical. The first auger 54 is plugged into the inner side of the first mesh cover 33, and the second auger 55 is plugged into the inner side of the second mesh cover 34. The outer side of the first auger 54 is fitted and connected to the inner wall of the first mesh cover 33, and the outer side of the second auger 55 is fitted and connected to the inner wall of the second mesh cover 34. The overall shape of the first auger 54 is designed to be conical, which not only increases the contact area with the mobile phase, but also makes the stirring more uniform, and can effectively prevent impurities in the mobile phase from accumulating at the entrance of the filter component 3. At the same time, the conical design also enables the first auger 54 to be smoothly inserted into the inner side of the first mesh cover 33, and fits tightly with the inner wall of the first mesh cover 33, thereby achieving comprehensive stirring of the mobile phase, and the overall shape of the second auger 55 is set to be cylindrical. This design enables the second auger 55 to maintain a stable rotation state during the stirring process and is not prone to deviation or shaking. The cylindrical second auger 55 is also inserted into the inner side of the second mesh cover 34 and is tightly connected to the inner wall of the second mesh cover 34, ensuring effective stirring of the mobile phase. Through the coordinated work of the first auger 54 and the second auger 55, the stirring mechanism 5 can achieve comprehensive and uniform stirring of the mobile phase in the storage tank 2, effectively preventing the clogging of the filter assembly 3. At the same time, this design also ensures the close fit between the stirring mechanism 5 and the filter assembly 3, thereby improving the working efficiency and stability of the entire device. By designing the conical and cylindrical first auger 54 and the second auger 55, and tightly connecting them with the first mesh cover 33 and the second mesh cover 34, the stirring mechanism 5 can achieve efficient stirring of the mobile phase and ensure the smooth operation of the filter assembly 3.

[0040] Please refer to Figure 1-Figure 5 , support legs 8 are fixedly installed on the outside of the base 1 at equal intervals, and support feet 9 are fixedly installed on the outer ends of the support legs 8. The lower ends of the support feet 9 are set to be conical. The support legs 8 are arranged at equal intervals to ensure that the base 1 can evenly disperse the pressure when subjected to force, thereby reducing deformation or tilting caused by uneven force. At the same time, the number and position of the support legs 8 are also carefully calculated to meet the overall load-bearing requirements of the device. At the outer ends of the support legs 8, support feet 9 are fixedly installed, and the lower ends of the support feet 9 are designed to be conical. This design not only increases the contact area between the support feet 9 and the ground and improves the stability of the device, but also makes it easier to insert the support feet 9 into the ground, especially on soft or uneven ground. The conical support feet 9 can use their sharp tips to penetrate the ground to form a stable support point, effectively preventing the device from sliding or tipping over during use.

[0041] Please refer to Figure 1-Figure 7A third solenoid valve 56 is fixedly installed on one side of the top of the top cover 51, and a feed pipe 59 is fixedly installed on the top of the third solenoid valve 56. The third solenoid valve 56 is used as a switch for controlling the feed, and its installation position is carefully selected, which is convenient for operation and ensures smooth feeding. When it is necessary to add mobile phase to the storage tank 2, it is only necessary to open the third solenoid valve 56, and the mobile phase can smoothly enter the storage tank 2 through the feed pipe 59. This design makes the feeding process simple and fast, and improves work efficiency. At the same time, the existence of the third solenoid valve 56 also ensures the safety of the feeding process. By accurately controlling the switching state of the solenoid valve, leakage or overflow of the mobile phase caused by misoperation or unexpected circumstances can be avoided, thereby ensuring the safe operation of the device. In addition, the design of the feed pipe 59 also takes into account the needs of actual use. The material selection can withstand the corrosion of the mobile phase, ensuring the stability of long-term use. At the same time, the length and diameter of the feed pipe 59 are also optimized to ensure that the mobile phase can flow smoothly into the storage tank 2. At the same time, when sealing is required, it is only necessary to close the third solenoid valve 56 to avoid problems such as blockage or leakage.

[0042] Please refer to Figure 1-Figure 7 The output end of the third solenoid valve 56 passes through the top cover 51 and is connected to the inside of the storage tank 2. A feed hopper 57 is fixedly installed on the top of the feed pipe 59, and a sealing gasket 58 is fixedly installed on the bottom of the top cover 51. In order to ensure that the mobile phase can smoothly enter the storage tank 2 and avoid leakage or overflow during the feeding process, a sealing gasket 58 is fixedly installed on the bottom of the top cover 51. The material of the sealing gasket 58 has good elasticity and sealing performance, and can fit tightly with the mouth of the storage tank 2 to effectively prevent fluid leakage. This design not only improves the safety and reliability of the device, but also extends its service life. In addition, in order to facilitate users to add mobile phase, a feed hopper 57 is fixedly installed on the top of the feed tube 59. The design of the feed hopper 57 allows users to easily pour the mobile phase, and its shape and size are optimized to ensure that the mobile phase can smoothly enter the feed tube 59 to avoid splashing or clogging. The design of the third solenoid valve 56, the sealing gasket ring 58 and the feed hopper 57 together constitute the feeding system of the liquid chromatography mobile phase holding device. This system not only ensures that the mobile phase can safely and effectively enter the storage tank 2, but also improves work efficiency and ease of use.

[0043] The implementation principle of a liquid chromatography mobile phase holding device in the embodiment of the present application is as follows: by setting a filter assembly 3 in conjunction with a stirring mechanism 5, the mobile phase can be added to the interior of the storage tank 2 through a feed hopper 57 during use of the device. At this time, the mobile phase is assisted in filtering through a first mesh cover 33 and a second mesh cover 34. The first mesh cover 33 is conical, and the second mesh cover 34 is conical. The overall combination can form a large-area combined mesh cover, which can improve the overall filtering and filtration efficiency of the device. In addition, during the filtering process, the second motor 53 is started to run, and the second motor 53 drives the first auger 54 and the second auger 55 to rotate. Since the outer sides of the first auger 54 and the second auger 55 are respectively attached to the first mesh cover 33 and the second mesh cover 34, the first auger 54 and the second auger 55 are respectively attached to the first mesh cover 33 and the second mesh cover 34. The second mesh cover 34 is driven by the first auger 54 and the second auger 55 to push the impurities inside the first mesh cover 33 and the second mesh cover 34, so that the filtered impurities can be gathered into the bottom of the second mesh cover 34 in the storage tank 2, which can avoid the clogging of the impurities filtered on the upper end of the surface of the first mesh cover 33 and the second mesh cover 34, so that the device can always be in a high-efficiency filtering and circulation state, improve the flow filtration efficiency of the mobile phase inside the device, improve the stability of the device as a whole during the filtering of the mobile phase liquid, and improve the stability of the device as a whole during use. During the storage of the mobile phase, the third solenoid valve 56 can be started to assist in sealing the feed hopper 57, so as to improve the overall sealing performance of the storage tank 2 of the device.

[0044] By setting the lifting mechanism 4, during use, the device can be started by starting the first electric operation, and the operation of the first motor 42 can drive the screw rod 43 to rotate. The rotation of the screw rod 43 can push the sliding rod 44 to slide inside the guide rail 41. The sliding rod 44 slides up and down inside the guide rail 41, which can prompt the sliding rod 44 to pull the top cover 51 up and down. The top cover 51 moves upward to remove the entire stirring mechanism 5 from the first net cover 33 and the second net cover 34 in the storage tank 2. During this period, since the insertion rod 32 is inserted into the inside of the sleeve 31, the first net cover 33 and the second net cover 34 can be stably arranged inside the storage tank 2. When the first net cover 33 and the second net cover 34 need to be removed, the insertion rod 32 can be pulled out from the inside of the sleeve 31 by pulling the first net cover 33 upward to replace it, so that the first filter screen and the second filter screen can be quickly replaced by the device as a whole. At the same time, the stirring mechanism 5 and the entire storage tank 2 are easy to inspect, maintain and clean, making the overall cleaning and inspection of the device more convenient.

[0045] By setting the discharge mechanism 7, when the mobile phase needs to be discharged during the use of the device, the first solenoid valve 73 can be opened. At this time, the discharge pipe 71 at the bottom is opened, and the mobile phase liquid can be discharged into the inside of the discharge pipe 71 through the gap between the discharge pipe 71 and the inner filter screen cover 72. At this time, the solution inside the discharge pipe 71 can be discharged by opening the second solenoid valve 74. When it is necessary to disassemble and clean the impurities filtered out from the first screen cover 33 and the second screen cover 34, the second solenoid valve 74 can be opened, and the input end of the second solenoid valve 74 is connected to the inside of the second screen cover 34. By starting the second motor 53 to drive the first auger 54 and the second auger 55 to run, the first auger 54 and the second auger 55 can be driven to discharge, so that the filtered impurities can be evenly discharged through the second solenoid valve 74 at the bottom, so that the first screen cover 33 and the second screen cover 34 can be cleaned without disassembly during use, which can improve the overall convenience of use and operation of the device.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A liquid chromatography mobile phase containing device, comprising a base (1), characterized in that: A storage tank (2) is fixedly mounted in the middle of the base (1), a filter assembly (3) is movably mounted inside the storage tank (2), the filter assembly (3) comprises a sleeve (31), the sleeves (31) are arranged in a ring at equal intervals and fixedly mounted on the bottom of the storage tank (2), a plug rod (32) is inserted into the sleeve (31), a first mesh cover (33) is fixedly mounted on the top of the plug rod (32), a second mesh cover (34) is fixedly mounted on the bottom of the first mesh cover (33), the bottom of the second mesh cover (34) passes through the discharge pipe (6) and is connected to the discharge mechanism (7), the overall shape of the first mesh cover (33) is conical, and the overall shape of the second mesh cover (34) is set to be cylindrical; A discharge pipe (6) is fixedly mounted at the bottom of the storage tank (2), a discharge mechanism (7) is fixedly mounted at the bottom of the discharge pipe (6), the discharge mechanism (7) comprises a discharge pipe (71), the discharge pipe (71) is fixedly mounted at the bottom of the storage tank (2), an inner filter screen (72) is fixedly mounted inside the discharge pipe (71), a first solenoid valve (73) is fixedly mounted on one side of the discharge pipe (71), a second solenoid valve (74) is fixedly mounted at the bottom of the discharge pipe (71), an input end of the second solenoid valve (74) is connected to the inside of the screen, and an upper end of the discharge pipe (71) is connected to the inside of the storage tank (2).

2. A liquid chromatography mobile phase containing device according to claim 1, characterized in that: A lifting mechanism (4) is fixedly installed in the middle of the back side of the base (1), a stirring mechanism (5) is fixedly installed on the top of the lifting mechanism (4), and the bottom of the stirring mechanism (5) is plugged into the inner side of the filter assembly (3); The lifting mechanism (4) comprises a guide rail (41), the guide rail (41) is fixedly mounted on the middle part of one side of the base (1), a first motor (42) is fixedly mounted on the bottom of the guide rail (41), a screw rod (43) is fixedly mounted on the output end of the first motor (42), the screw rod (43) is rotatably connected to the inside of the guide rail (41), a sliding rod (44) is threadedly connected to the outer surface of the screw rod (43), and the outer end of the sliding rod (44) is fixedly connected to the stirring mechanism (5).

3. A liquid chromatography mobile phase containing device according to claim 2, characterized in that: The overall cross-sectional shape of the interior of the guide rail (41) is a convex shape, the overall cross-sectional shape of the slide bar (44) of the guide rail (41) is also set to be a convex shape, and the side shape of the slide bar (44) is set to be L-shaped.

4. A liquid chromatography mobile phase containing device according to claim 3, characterized in that: The stirring mechanism (5) comprises a top cover (51), wherein the top cover (51) is fixedly mounted on the outer end of the sliding rod (44), a fixing frame (52) is fixedly mounted in the middle of the top of the top cover (51), the top of the fixing frame (52) is fixedly connected to the outer end of the sliding rod (44), a second motor (53) is fixedly mounted in the middle of the top of the top cover (51) and located on the inner side of the fixing frame (52), an output end of the second motor (53) passes through the top cover (51) and is fixedly mounted with a first auger (54), and a second auger (55) is fixedly mounted at the bottom of the first auger (54).

5. A liquid chromatography mobile phase containing device according to claim 4, characterized in that: The first auger (54) is configured in a conical shape, and the second auger (55) is configured in a cylindrical shape. The first auger (54) is plugged into the inner side of the first mesh cover (33), and the second auger (55) is plugged into the inner side of the second mesh cover (34). The outer side of the first auger (54) is closely connected to the inner wall of the first mesh cover (33), and the outer side of the second auger (55) is closely connected to the inner wall of the second mesh cover (34).

6. A liquid chromatography mobile phase containing device according to claim 5, characterized in that: A third solenoid valve (56) is fixedly mounted on one side of the top of the top cover (51), and a feed pipe (59) is fixedly mounted on the top of the third solenoid valve (56).

7. A liquid chromatography mobile phase containing device according to claim 6, characterized in that: The output end of the third solenoid valve (56) passes through the top cover (51) and is in communication with the interior of the storage tank (2); a feed hopper (57) is fixedly mounted on the top of the feed pipe (59); and a sealing gasket (58) is fixedly mounted on the bottom of the top cover (51).

8. The liquid chromatography mobile phase containing device according to claim 1, characterized in that: Support legs (8) are fixedly mounted at equal intervals on the outer side of the base (1), and support feet (9) are fixedly mounted on the outer ends of the support legs (8), wherein the lower ends of the support feet (9) are configured to be conical.

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