Automatic column passing device

Abstract

The invention belongs to the technical field of chemical experiment instruments, and discloses an automatic column passing device which comprises a shell, a column frame is arranged in the shell, and a heating device is further arranged between the column frame and the shell. Overinjected liquid flows into the top of the upper flow guide shell through cooperation of the electric valve and the liquid inlet pipe and is divided into multiple strands through the upper flow guide groove to flow into the different flow guide inlets and fall into the multiple columns, liquid flowing out of the columns is gathered through the lower flow guide shell and flows out of the flow guide outlets, and therefore the effect that one kind of column passing liquid flows through the columns at the same time is achieved, and the column passing efficiency is higher. The column passing device is modularized, and the column frame through which the column passing liquid flows and the heating device are single modules and can be disassembled and assembled through a manipulator, so that the column passing device is convenient to clean after being used. The column cavities in the heat source cavity wrap the columns, a heat source flows in from the heat source inlet and flows out from the heat source outlet, heat preservation of the multiple columns in the heat source cavity is achieved, and the heat-preservation column-passing device is suitable for some experiments needing heat-preservation column-passing and wider in application range.

Description

Technical Field

[0001] The invention relates to the technical field of chemical experimental instruments, in particular to an automatic column passing device. Background Art

[0002] Column separation is one of the basic methods of purification. Column separation is often called column chromatography, also known as column chromatography. The chromatographic system consists of two phases, one is the stationary phase and the other is the mobile phase. Usually, the adsorption column uses silica gel or alumina as the stationary phase. The silica gel is used to adsorb both the product and the impurities. Each substance has different binding forces on the stationary phase, and the degree of adsorption is different. Then different mobile phases are used for elution to achieve the purpose of differentiation.

[0003] The utility model patent with publication number CN202221237079.6 discloses an automatic column passing device, including a frame, on which at least one column passing device is arranged, wherein the column passing device includes a liquid adding component, a first lifting component, a first translation component, a column bed, a sample table and a test tube table, etc.; the liquid adding component includes a movable plate and a liquid adding gun head, the movable plate is slidably arranged on the frame, and the liquid adding gun head is slidably arranged on the movable plate; the first lifting component is fixed on the frame, used to drive the movable plate to slide on the frame; the first translation component is fixed on the movable plate and connected to the liquid adding gun head, used to drive the liquid adding gun head to slide on the movable plate; the column bed is arranged on the frame, used to place the purification column tube; the sample table is arranged at the bottom of the frame; the test tube table corresponds to the column bed and is arranged at the bottom of the frame; under the coordinated action of the first lifting component and the first translation component, the liquid adding gun head is driven to approach the sample table to extract the sample, and then moves to the top of the purification column tube to perform the dripping action, and at the same time, the test tube table collects the solution dripped from the purification column tube to realize automatic operation.

[0004] The above-mentioned automatic column passing equipment is formed by stacking column passing device units to form a large-scale column passing equipment. When used, it is still a single-to-single column passing, that is, one column passing liquid passes through one column. The column passing efficiency is too slow for a single experiment, and the above-mentioned automatic column passing equipment does not have a heating and heat preservation function, so it cannot be used for some experiments that require heat preservation column passing. Summary of the invention

[0005] The object of the present invention is to provide an automatic column passing device to solve the problem mentioned in the above background technology that the existing automatic column passing equipment is used on a single-to-single basis, that is, one column passing liquid passes through one column, and the column passing efficiency is too slow for a single experiment, and the above automatic column passing equipment does not have a heating and heat preservation function, so some experiments that require heat preservation for column passing cannot be used.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An automatic column passing device comprises a shell, a column frame is arranged inside the shell, and a heating device is arranged between the column frame and the shell;

[0008] The housing comprises an upper housing, a side housing and a lower housing, wherein the upper surface and the lower surface of the side housing are respectively connected to the upper housing and the lower housing;

[0009] The column frame includes an upper guide shell that is arranged through the center of the upper shell surface, the top of the upper guide shell is connected to an upper sealing cover, the center of the surface of the upper sealing cover is penetrated by a liquid inlet pipe, the end of the liquid inlet pipe away from the upper sealing cover is connected to an electric valve, a plurality of upper guide grooves are evenly arranged on the surface of the upper guide shell along the circumferential direction, the end of the upper guide groove away from the center of the surface of the upper guide shell and the center of the surface of the upper guide shell are both provided with a guide inlet, the bottom of each of the guide inlets is connected to a column, the bottom of each of the columns is connected to a lower support plate, the bottom of the lower support plate is provided with a lower guide shell, the bottom of the column passes through the lower support plate and is connected to the lower guide groove inside the lower guide shell, a guide outlet is arranged at the center of the bottom of the lower guide groove, the bottom of the guide outlet is connected to a liquid outlet pipe, the end of the liquid outlet pipe away from the guide outlet is connected to a flow meter, and an intelligent camera device is also arranged on the outside of the liquid outlet pipe.

[0010] Further preferably, the heating device includes a cavity side arranged inside the side shell, the upper surface and the lower surface of the cavity side are respectively connected to the cavity upper cover and the cavity lower cover, the cavity side, the cavity upper cover and the cavity lower cover combine to constitute a heat source cavity, a plurality of column cavities are arranged inside, and the column cavities are connected to columns.

[0011] Further preferably, a heat-insulating layer is provided between the side surface of the cavity and the side shell, and the heat-insulating layer is closely attached to the outer side surface of the cavity.

[0012] Further preferably, a heat source outlet is arranged at the top of the heat source cavity, which passes through the cavity upper cover and the upper shell in sequence from bottom to top, and a heat source inlet is arranged at the bottom of the heat source cavity, which passes through the cavity lower cover, the lower support plate and the lower shell in sequence from top to bottom.

[0013] Further preferably, a temperature sensor is also provided on the surface of the cavity upper cover, and one end of the temperature sensor away from the cavity upper cover penetrates the upper shell.

[0014] Further preferably, the column comprises a column inlet, a column body and a column outlet which are arranged in sequence from top to bottom, the bottom of the column inlet is connected to the column body, and the center of the bottom of the column body is connected to the column outlet;

[0015] The column body is sleeved inside the column cavity, and the column cavity as a whole is composed of a hollow columnar structure surrounded by the cavity side, and the two ends of the cavity side respectively penetrate the cavity upper cover and the cavity lower cover;

[0016] The column inlet is an annular step-shaped structure as a whole, and the lower edge of the column inlet is arranged at the top of the side of the cavity, the upper edge of the column inlet is arranged at the bottom of the upper guide shell, and the central axis of the column inlet and the guide inlet coincide with each other;

[0017] The column outlet passes through the lower support plate and is connected to the lower guide groove inside the lower guide shell.

[0018] Further preferably, the plurality of upper guide grooves are all U-shaped structures, the open ends of the upper guide grooves of the U-shaped structure are interconnected, and a guide inlet is provided at the bottom of the closed end of the upper guide groove of the U-shaped structure.

[0019] Further preferably, the upper sealing cover is fixedly connected to the upper shell and the upper guide shell respectively by fastening bolts, and an upper sealing ring is provided between the upper guide shell and the upper sealing cover;

[0020] A groove is provided at the center of the top of the lower shell, and a lower guide shell is nested in the groove. A lower support plate is also connected to the top of the lower shell, and the lower support plate is fixedly connected to the lower shell and the lower guide shell by fastening bolts respectively. A lower sealing ring is provided between the lower support plate and the lower guide shell.

[0021] Further preferably, the longitudinal cross-section of the lower guide groove inside the lower guide shell is an inverted cone-shaped structure, and the guide outlet is located at the lowest point in the center of the bottom of the lower guide groove of the inverted cone-shaped structure.

[0022] Further preferably, the diameter of the column cavity is greater than or equal to the outer diameter of the column body.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The injection liquid flows into the top of the upper guide shell through the electric valve and the liquid inlet pipe, and is divided into multiple streams through the upper guide groove and flows into different guide inlets respectively, and falls into multiple columns. The lower guide shell gathers the liquid flowing out of multiple columns and flows out from the guide outlet, so that one column liquid can flow through multiple columns at the same time, and the column efficiency is faster.

[0025] 2. The column device is modular. Both the column frame through which the column liquid flows and the heating device are single modules, which can be disassembled and assembled by a robot, making it convenient to clean them after use.

[0026] 3. A heating device is provided, and the column cavity inside the heat source cavity wraps the column. The heat source flows in from the heat source inlet and flows out from the heat source outlet, thereby achieving heat preservation of multiple columns inside the heat source cavity. It is suitable for some experiments that require heat preservation through the column, and has a wider range of applications.

[0027] 4. The columns are arranged in a circular direction to reduce the volume of the column frame, improve space utilization, make the column passing device more compact, and facilitate the automated transfer and installation of the equipment.

[0028] 5. The docking ports of the entire column device, i.e. the liquid inlet pipe and the liquid outlet pipe, are in the same direction, thus simplifying the automatic docking process and making the automation process of the equipment more convenient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the overall structure of an automatic column passing device provided by an embodiment of the present invention;

[0030] Figure 2 A schematic cross-sectional structure diagram of an automatic column passing device provided by an embodiment of the present invention;

[0031] Figure 3 A schematic structural diagram of a heating device for an automatic column passing device provided in an embodiment of the present invention;

[0032] Figure 4 A schematic diagram of a partial structure of a column frame of an automatic column passing device provided by an embodiment of the present invention;

[0033] Figure 5 A schematic diagram of the column structure of an automatic column passing device provided in an embodiment of the present invention.

[0034] In the figure: 100, housing; 110, upper housing; 120, side housing; 130, lower housing; 200, column frame; 210, liquid inlet pipe; 211, electric valve; 220, sealing cover; 230, upper flow guide housing; 231, upper flow guide groove; 232, flow guide inlet; 240, column; 241, column inlet; 242, column body; 243, column outlet; 250, support plate; 260, lower flow guide housing; 261, lower flow guide groove; 262 , diversion outlet; 270, liquid outlet pipe; 271, intelligent camera equipment; 272, flow meter; 280, upper sealing ring; 290, lower sealing ring; 300, heating device; 310, heat source outlet; 320, heat source inlet; 330, cavity upper cover; 331, temperature sensor; 340, cavity side; 350, cavity lower cover; 360, insulation layer; 370, cavity side; 380, heat source cavity; 390, column cavity. DETAILED DESCRIPTION

[0035] 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.

[0036] See also Figure 1-5 , the present invention provides a technical solution:

[0037] An automatic column passing device comprises a housing 100, a column frame 200 is arranged inside the housing 100, and a heating device 300 is arranged between the column frame 200 and the housing 100;

[0038] The housing 100 includes an upper housing 110, a side housing 120 and a lower housing 130, wherein the upper surface and the lower surface of the side housing 120 are connected to the upper housing 110 and the lower housing 130 respectively;

[0039] The column frame 200 includes an upper flow guide shell 230 that is arranged at the center of the surface of the upper shell 110, and the top of the upper flow guide shell 230 is connected to the upper sealing cover 220. The center of the surface of the upper sealing cover 220 is provided with a liquid inlet pipe 210, and the end of the liquid inlet pipe 210 away from the upper sealing cover 220 is connected to the electric valve 211. The surface of the upper flow guide shell 230 is uniformly provided with a plurality of upper flow guide grooves 231 along the circumferential direction, and the end of the upper flow guide groove 231 away from the center of the surface of the upper flow guide shell 230 and the center of the surface of the upper flow guide shell 230 are both provided with a flow guide inlet 232, and each flow guide groove 231 has a plurality of upper flow guide grooves 231. The bottom of the inlet 232 is connected to a column 240, and the bottom of each column 240 is connected to a lower support plate 250. A lower guide shell 260 is arranged at the bottom of the lower support plate 250. The bottom of the column 240 passes through the lower support plate 250 and is connected to a lower guide groove 261 inside the lower guide shell 260. A guide outlet 262 is arranged at the bottom center of the lower guide groove 261. A liquid outlet pipe 270 is connected to the bottom of the guide outlet 262. A flow meter 272 is connected to the end of the liquid outlet pipe 270 away from the guide outlet 262, and an intelligent camera device 271 is also arranged on the outside of the liquid outlet pipe 270.

[0040] In the present invention, the heating device 300 includes a cavity side 340 arranged inside the side shell 120, and the upper surface and lower surface of the cavity side 340 are respectively connected to the cavity upper cover 330 and the cavity lower cover 350, and the cavity side 340, the cavity upper cover 330 and the cavity lower cover 350 are combined to form a heat source cavity 380, in which a plurality of columnar cavities 390 are arranged, and the column 240 is connected inside the column cavity 390.

[0041] In the present invention, a heat-insulating layer 360 is further disposed between the cavity side surface 340 and the side shell 120 , and the heat-insulating layer 360 is closely attached to the outer side of the cavity side surface 340 .

[0042] In the present invention, the top of the heat source cavity 380 is provided with a heat source outlet 310, which passes through the cavity upper cover 330 and the upper shell 110 from bottom to top, and the bottom of the heat source cavity 380 is provided with a heat source inlet 320, which passes through the cavity lower cover 350, the lower support plate 250 and the lower shell 130 from top to bottom. The heat source inlet 320 and the heat source outlet 310 are respectively connected to the outlet and inlet of the TCU (Temperature Control Unit) temperature control device.

[0043] In the present invention, a temperature sensor 331 is further disposed on the surface of the cavity upper cover 330 , and one end of the temperature sensor 331 away from the cavity upper cover 330 penetrates the upper shell 110 .

[0044] In the present invention, the column 240 includes a column inlet 241, a column body 242 and a column outlet 243 arranged in sequence from top to bottom. The bottom of the column inlet 241 is connected to the column body 242, and the center of the bottom of the column body 242 is connected to the column outlet 243;

[0045] The column body 242 is sleeved inside the column cavity 390. The column cavity 390 as a whole is formed by a hollow columnar structure surrounded by a cavity side surface 370. The two ends of the cavity side surface 370 respectively penetrate the cavity upper cover 330 and the cavity lower cover 350. The diameter of the column cavity 390 is greater than or equal to the outer diameter of the column body 242.

[0046] The column inlet 241 is an annular step-shaped structure as a whole, and the lower edge of the column inlet 241 is arranged at the top of the cavity side 370, and the upper edge of the column inlet 241 is arranged at the bottom of the upper guide shell 230, and the central axes of the column inlet 241 and the guide inlet 232 coincide with each other;

[0047] The column outlet 243 passes through the lower support plate 250 and is connected to the lower guide groove 261 inside the lower guide shell 260 .

[0048] In the present invention, the plurality of upper guide grooves 231 are all U-shaped structures, the open ends of the upper guide grooves 231 of the U-shaped structure are interconnected, and a guide inlet 232 is provided at the bottom of the closed end of the upper guide grooves 231 of the U-shaped structure.

[0049] In the present invention, the upper sealing cover 220 is fixedly connected to the upper shell 110 and the upper guide shell 230 by fastening bolts, and an upper sealing ring 280 is provided between the upper guide shell 230 and the upper sealing cover 220;

[0050] A groove is opened at the center of the top of the lower shell 130, and the lower guide shell 260 is nested inside the groove. A lower support plate 250 is also connected to the top of the lower shell 130. The lower support plate 250 is fixedly connected to the lower shell 130 and the lower guide shell 260 by fastening bolts respectively, and a lower sealing ring 290 is arranged between the lower support plate 250 and the lower guide shell 260.

[0051] In the present invention, the lower guide groove 261 inside the lower guide shell 260 has an inverted cone-shaped structure in the longitudinal section, and the guide outlet 262 is located at the lowest point at the bottom center of the lower guide groove 261 of the inverted cone-shaped structure.

[0052] In the present invention, the electric valve 211 is an electric four-way valve, and the electric valve 211 is respectively interconnected with the liquid inlet pipe 210, the column eluent pipeline, the column liquid pipeline and the nitrogen pipeline; the intelligent camera device 271 is a high-definition industrial camera; the electric valve 211, the intelligent camera device 271, the flow meter 272, the TCU temperature control device and the temperature sensor 331 are respectively electrically connected to the control system and the external power supply.

[0053] Embodiment 1: When the column is automatically passed, the electric valve 211 is opened and switched to the column eluent pipeline. The column eluent enters the liquid inlet pipe 210 through the action of the electric valve 211, flows into the upper guide groove 231, and then enters the column 240 through the guide inlet 232 to wet the silica gel in the column 240. The system records the wetting time. When the set wetting time is reached, the wetting is completed and the electric valve 211 is closed; the electric valve 211 is switched to the column liquid pipeline again, and the column eluent is opened. The electric valve 211 is opened to start the column flow. The column flow liquid enters the liquid inlet pipe 210 through the electric valve 211, flows into the upper flow guide groove 231 on the surface of the upper flow guide shell 230, and then enters the column 240 through the flow guide inlet 232, passes through the silica gel in the column 240, converges to the lower flow guide shell 260, flows out from the flow guide outlet 262 through the lower flow guide groove 261 inside the lower flow guide shell 260, and finally passes through the liquid outlet pipe 270 and the flow meter 272 below it for unified collection. The intelligent camera device 271 outside the liquid outlet pipe 270 and the flow meter 272 below it record the column flow data and feed it back to the control system. The control system determines whether the column flow process is normal by judging the collected data, and thus controls whether the column flow process ends by closing or opening the electric valve 211. After the column process is completed, the electric valve 211 is further switched to the column washing liquid pipeline to wash the column liquid in the column 240, so that the column process is more complete. Then, the intelligent camera device 271 and the flow meter 272 feed back the recorded data to the control system to determine whether the washing is completed, that is, when the intelligent camera device 271 observes that no liquid falls from the liquid outlet pipe 270, and the data recorded by the flow meter 272 flowing through the liquid outlet pipe 270 reaches the total amount of liquid added set in the system, it is determined that the washing is completed. Finally, the electric valve 211 is controlled to switch to the nitrogen pipeline, and the final nitrogen purge is performed according to the time set by the system. When the nitrogen purge is completed, the column process is completed. When the intelligent camera device 271 observes that no liquid falls, and the data recorded by the flow meter 272 flowing through the liquid outlet pipe 270 reaches the total amount of liquid added set in the system, it is judged that the column passing process is normal, the control system controls the electric valve 211 to close, and sends a normal end signal to the control system, and the column passing process ends; when the intelligent camera device 271 observes that no liquid falls, but the data recorded by the flow meter 272 flowing through the liquid outlet pipe 270 does not reach the total amount of liquid added set in the system, it is judged that an abnormality occurs, the control system controls the electric valve 211 to close, and sends an abnormal end signal to the control system, and the column passing process ends.

[0054] Embodiment 2: Compared with Embodiment 1, the difference between this embodiment and Embodiment 1 is that when adjusting the temperature inside the housing 100, the heat source enters the heat source inlet 320 through the TCU temperature control device, and then enters the heat source cavity 380 until the entire heat source cavity 380 is filled. Then it is discharged from the heat source outlet 310 and enters the TCU temperature control device. This cycle is repeated to continuously ensure the temperature inside the heat source cavity 380. The temperature inside the heat source cavity 380 is thermally transferred to the column 240 through the cavity side 370 and further transferred to the column liquid in the column 240. The temperature sensor 331 can read the temperature inside the heat source cavity 380 in real time and feed it back to the control system. The control system further controls the temperature of the TCU temperature control device to achieve control of the temperature of the column process, and prevents the precipitation of products during the column process due to temperature discomfort, which affects the experimental data. Improve the accuracy of the experimental results.

[0055] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic column passing device, comprising a housing (100), characterized in that: A column frame (200) is arranged inside the housing (100), and a heating device (300) is also arranged between the column frame (200) and the housing (100); The housing (100) comprises an upper housing (110), a side housing (120) and a lower housing (130), wherein the upper surface and the lower surface of the side housing (120) are respectively connected to the upper housing (110) and the lower housing (130); The column frame (200) comprises an upper flow guide shell (230) which is arranged through the center of the surface of the upper shell (110); the top of the upper flow guide shell (230) is connected to an upper sealing cover (220); a liquid inlet pipe (210) is arranged through the center of the surface of the upper sealing cover (220); an end of the liquid inlet pipe (210) away from the upper sealing cover (220) is connected to an electric valve (211); a plurality of upper flow guide grooves (231) are evenly arranged along the circumferential direction on the surface of the upper flow guide shell (230); a flow guide inlet (232) is arranged at one end of the upper flow guide groove (231) away from the center of the surface of the upper flow guide shell (230) and at the center of the surface of the upper flow guide shell (230); each of the flow guide inlets (232) is provided with a plurality of upper flow guide grooves (231) which are arranged along the circumferential direction; The bottom of each of the columns (232) is connected to a column (240), the bottom of each of the columns (240) is connected to a lower support plate (250), a lower guide shell (260) is arranged at the bottom of the lower support plate (250), the bottom of the column (240) passes through the lower support plate (250) and is connected to a lower guide groove (261) inside the lower guide shell (260), a guide outlet (262) is arranged at the center of the bottom of the lower guide groove (261), the bottom of the guide outlet (262) is connected to a liquid outlet pipe (270), one end of the liquid outlet pipe (270) away from the guide outlet (262) is connected to a flow meter (272), and an intelligent camera device (271) is also arranged on the outside of the liquid outlet pipe (270).

2. The automatic column passing device according to claim 1, characterized in that: The heating device (300) includes a cavity side (340) arranged inside the side shell (120), the upper surface and the lower surface of the cavity side (340) are respectively connected to the cavity upper cover (330) and the cavity lower cover (350), the cavity side (340), the cavity upper cover (330) and the cavity lower cover (350) are combined to form a heat source cavity (380), and a plurality of columnar cavities (390) are arranged inside, and the columnar cavities (390) are connected to the inside of the columnar cavities (240).

3. The automatic column passing device according to claim 2, characterized in that: A heat-insulating layer (360) is further provided between the cavity side surface (340) and the side shell (120), and the heat-insulating layer (360) is closely attached to the outside of the cavity side surface (340).

4. The automatic column passing device according to claim 2, characterized in that: The top of the heat source cavity (380) is provided with a heat source outlet (310) which passes through the cavity upper cover (330) and the upper shell (110) in sequence from bottom to top, and the bottom of the heat source cavity (380) is provided with a heat source inlet (320) which passes through the cavity lower cover (350), the lower support plate (250) and the lower shell (130) in sequence from top to bottom.

5. The automatic column passing device according to claim 2, characterized in that: A temperature sensor (331) is also provided on the surface of the cavity upper cover (330), and one end of the temperature sensor (331) away from the cavity upper cover (330) is arranged to penetrate the upper shell (110).

6. The automatic column passing device according to claim 2, characterized in that: The column (240) comprises a column inlet (241), a column body (242) and a column outlet (243) which are arranged in sequence from top to bottom, the bottom of the column inlet (241) is connected to the column body (242), and the center of the bottom of the column body (242) is connected to the column outlet (243); The column body (242) is sleeved inside the column cavity (390), and the column cavity (390) as a whole is formed by a hollow columnar structure surrounded by a cavity side surface (370), and the two ends of the cavity side surface (370) respectively penetrate the cavity upper cover (330) and the cavity lower cover (350); The column inlet (241) is an annular stepped structure as a whole, and the lower edge of the column inlet (241) is arranged at the top of the cavity side surface (370), and the upper edge of the column inlet (241) is arranged at the bottom of the upper guide shell (230), and the central axes of the column inlet (241) and the guide inlet (232) coincide with each other; The column outlet (243) passes through the lower support plate (250) and is connected to the lower guide groove (261) inside the lower guide shell (260).

7. The automatic column passing device according to claim 1, characterized in that: The plurality of upper guide grooves (231) are all U-shaped structures, the open ends of the upper guide grooves (231) of the U-shaped structure are connected to each other, and the bottom of the closed end of the upper guide groove (231) of the U-shaped structure is provided with a guide inlet (232).

8. The automatic column passing device according to claim 1, characterized in that: The upper sealing cover (220) is fixedly connected to the upper shell (110) and the upper guide shell (230) respectively by fastening bolts, and an upper sealing ring (280) is provided between the upper guide shell (230) and the upper sealing cover (220); A groove is provided at the center of the top of the lower shell (130), and a lower guide shell (260) is nested in the groove. A lower support plate (250) is also connected to the top of the lower shell (130). The lower support plate (250) is fixedly connected to the lower shell (130) and the lower guide shell (260) by fastening bolts, and a lower sealing ring (290) is provided between the lower support plate (250) and the lower guide shell (260).

9. The automatic column passing device according to claim 1, characterized in that: The lower guide groove (261) inside the lower guide shell (260) has an inverted cone-shaped structure in longitudinal cross-section, and the guide outlet (262) is located at the lowest point at the bottom center of the lower guide groove (261) with the inverted cone-shaped structure.

10. The automatic column passing device according to claim 6, characterized in that: The diameter of the column cavity (390) is greater than or equal to the outer diameter of the column body (242).

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