Chromatographic column storage device of liquid chromatograph

Abstract

The invention relates to the technical field of chromatographic column storage, and discloses a chromatographic column storage device of a liquid chromatograph, which comprises a storage box, support plates are fixedly mounted on the upper and lower sides of the right part of the front end surface of the storage box, positioning columns are rotatably mounted in inner cavities of the two support plates, and a sealing door is fixedly mounted on the lower part of the side wall of each positioning column. A placement plate is slidably mounted on the bottom surface of an inner cavity of the lower side of the storage box; an extension mechanism; a buffer mechanism; and a heat-insulating mechanism. According to the device, a rotating mechanism is matched with an extending mechanism and the like, so that chromatographic column test tubes on a placing plate are pushed out while a sealing door is opened, a worker can conveniently take the chromatographic column test tubes, and a buffer mechanism is arranged, so that a good buffer effect can be achieved when the worker carries the device; the influence on subsequent experimental data caused by agitation of a solution in the chromatographic column test tube is avoided, and finally, the thermal insulation mechanism is arranged, so that the chromatographic column test tube can be always stored in a good environment, and the practicability of the whole device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of chromatographic column storage, in particular to a chromatographic column storage device for a liquid chromatograph. Background Art

[0002] Chromatographic columns are a method used in chemical analysis to separate various compounds in a mixture. It can separate various components one by one, and can determine the type and content of compounds in the sample by detecting the ratio of each component. The principle of chromatographic columns is to use the different principles of interaction between chemical molecules and chromatographic column separation materials for separation. Chromatographic columns are divided into liquid phase and gas phase. Liquid phase chromatographic columns inject sample-carrying liquid into the column and use the difference in affinity of the solution to separate the components of the sample. Gas phase chromatographic columns inject sample-carrying gas into the column and use the interaction principle between gas and target compound in the column for separation.

[0003] After searching, it was found that a chromatographic column storage device for a chromatograph is proposed in patent publication number CN218840247U, in which a plurality of fixed structures are fixedly arranged on the rear side of the storage box, the plurality of fixed structures correspond to a plurality of first clamping seats, and the plurality of chromatographic column bodies are located between the first clamping seats and the fixed structures.

[0004] In the above patent documents, the automatic cleaning of the chromatographic column can be realized, and the manual cleaning of the staff is not required, which improves the cleaning efficiency and cleaning effect. However, in daily use, since the chromatographic column is directly stored in a drawer or cabinet, when the storage device is carried and transported, the chromatographic column is easy to shake under the action of external force, and the stability is relatively poor, which is not convenient for better carrying and transportation. At the same time, some existing storage devices may not provide sufficient temperature control, resulting in the chromatographic column being affected by temperature fluctuations during storage, resulting in large differences in analysis results. Therefore, there is an urgent need for a chromatographic column storage device for a liquid chromatograph. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The object of the present invention is to provide a chromatographic column storage device for a liquid chromatograph, so as to solve the problem that the existing storage device mentioned in the above background technology lacks stable buffering and good heat preservation for the chromatographic column.

[0007] (II) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solution: a chromatographic column storage device for a liquid chromatograph, comprising a storage box and a chromatographic column test tube, wherein support plates are fixedly installed on the upper and lower sides of the right front end surface of the storage box, positioning columns are rotatably installed in the inner cavities of the two support plates, a sealing door is fixedly installed on the lower side wall of the positioning column, and a placement plate is slidably installed on the bottom surface of the lower inner cavity of the storage box, and further comprising:

[0009] A rotating mechanism, the rotating mechanism is arranged on the side wall of the positioning column, and the rotating mechanism is used to open and close the sealing door;

[0010] An extending mechanism, the extending mechanism is arranged in the lower inner cavity of the storage box, and the extending mechanism is used to extend and store the placement plate;

[0011] A buffer mechanism, the buffer mechanism is arranged on the upper end surface of the placement plate, and the buffer mechanism is used to buffer the chromatographic column test tube;

[0012] A heat preservation mechanism is arranged in the lower inner cavity of the storage box, and is used for heat preservation and storage of chromatographic column test tubes.

[0013] Preferably, the rotating mechanism includes a driving motor and a debris frame, the driving motor is fixedly installed on the lower part of the front end surface of the storage box through a frame, the output shaft end of the driving motor is fixedly connected to the positioning column, the debris frame is fixedly installed on the upper part of the outer wall of the positioning column, the debris frame is arranged in a fan shape, and a storage groove with the same size as the debris frame is opened on the upper part of the front side wall of the storage box.

[0014] Preferably, the extending mechanism includes a transmission worm, a transmission worm wheel, a first pulley, a second pulley, a belt, a transmission column and a transmission belt. The left and right side walls of the lower inner cavity of the storage box are rotatably connected with the transmission columns, and the transmission belt is transmission-connected between the transmission columns on the left and right sides. A transmission worm is fixedly installed on the middle part of the outer wall of the positioning column, and the rear side of the transmission worm is meshingly connected with the transmission worm wheel, and the left side wall of the transmission worm wheel is fixedly connected with the first pulley, and the first pulley is connected to the second pulley through belt transmission.

[0015] Preferably, the transmission worm gear is rotatably connected to the storage box, the transmission column located at the right rear is fixedly connected to the second pulley, the diameter of the first pulley is several times the diameter of the second pulley, and a placement plate is fixedly installed between the transmission belts on the left and right sides.

[0016] Preferably, the buffer mechanism includes a base, a first rotating block, a telescopic rod, a connecting spring, a second rotating block, a top seat, an insulation frame and an insulation mold. The base is arranged around the upper end surface of the placement plate, and the inner cavity of each base is fixedly installed with a first rotating block, a telescopic rod is fixedly installed on the side wall of the first rotating block, a second rotating block is fixedly installed on the telescopic rod end of the telescopic rod, and a top seat is rotatably installed on the side wall of the second rotating block.

[0017] Preferably, an insulation frame is fixedly installed in the middle of the upper end surface of the placement plate, an insulation mold is slidably installed in the inner cavity of the insulation frame, a chromatographic column test tube is placed in the inner cavity of the insulation mold, a connecting spring is fixedly installed on the side wall of the sleeve end of the telescopic rod, one end of the connecting spring away from the telescopic rod is fixedly installed on the side wall of the second rotating block, and the insulation mold is fixedly connected to the top seat.

[0018] Preferably, the heat preservation mechanism includes a vertical plate, a bidirectional threaded rod, an adjusting worm gear, an adjusting worm, an adjusting motor, a movable seat, a heating lamp holder and an ultraviolet sterilization lamp. The vertical plates are fixedly installed on the left and right sides of the rear portion of the upper end surface of the placement plate, a bidirectional threaded rod is rotatably installed between the vertical plates on the left and right sides, an adjusting worm gear is fixedly installed in the middle of the side wall of the bidirectional threaded rod, an adjusting motor is fixedly installed in the middle of the inner wall of the placement plate through a frame, and an adjusting worm is fixedly installed on the output shaft end of the adjusting motor.

[0019] Preferably, the adjusting worm is meshingly connected with the adjusting worm wheel, the left and right sides of the bidirectional threaded rod have opposite thread directions, the left and right sides of the side walls of the bidirectional threaded rod are threadedly mounted with movable seats, a heating lamp seat is fixedly mounted on the side walls of the movable seat, and ultraviolet sterilization lamps are fixedly mounted on the left and right sides of the top surface of the lower inner cavity of the storage box.

[0020] Preferably, a sliding groove is provided in the middle of the rear side wall of the heat preservation frame, and the movable seat slides in the inner cavity of the sliding groove.

[0021] Preferably, a handle is fixedly installed on the upper end surface of the storage box, self-locking universal wheels are fixedly installed around the lower end surface of the storage box, protective corner seats are fixedly installed at each corner of the storage box, the material of the protective corner seats is flexible foam, sealing strips are fixedly installed around the inner side wall of the sealing door, and a visual window is fixedly installed in the middle of the front end surface of the sealing door.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In the invention, under the cooperation of the rotating mechanism and the extending mechanism, the placement plate will continuously retract to the lower cavity of the storage box for storage. At this time, the user can start the adjusting motor to rotate the adjusting worm. Since the adjusting worm is meshed with the adjusting worm wheel, the adjusting worm wheel will drive the bidirectional threaded rod to continuously rotate. Since the left and right sides of the side walls of the bidirectional threaded rod are threadedly installed with moving seats, under the limiting constraint of the sliding groove opened in the middle part of the rear side wall of the insulation frame on the moving seat, the moving seats on the left and right sides will move away from and close to each other and continuously move in the inner cavity of the insulation frame. At this time, the heating lamp seat on the moving seat is turned on to evenly heat the insulation mold to avoid local overheating in the insulation mold causing damage to some chromatograph test tubes. When the insulation mold is heated, it can ensure that the chromatographic column test tubes are always stored in a good environment. At the same time, two sets of ultraviolet sterilization lamps are added to sterilize the surface of the chromatographic column test tubes, effectively improving the service life of the entire device.

[0024] 2. In the invention, when the staff carries the entire device, the vibration force generated by the insulation mold due to the bumps can be transmitted to the top seat, and then transmitted to the telescopic rod through the second rotating block. At this time, due to the existence of the connecting spring and the limiting effect of the insulation frame on the insulation mold, the insulation mold can move up and down in the inner cavity of the insulation frame. At this time, the vibration force of the telescopic rod can be absorbed by the connecting spring and decomposed under the friction between the insulation frame and the insulation mold, which effectively reduces the bump frequency and amplitude of the chromatographic column test tube on the placement plate, and greatly improves the safety performance of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view schematic diagram of the overall structure of a chromatographic column storage device of a liquid chromatograph of the present invention;

[0026] Figure 2 It is a rear view overall structural schematic diagram of a chromatographic column storage device of a liquid chromatograph of the present invention;

[0027] Figure 3 It is a bottom-up overall structural schematic diagram of a chromatographic column storage device of a liquid chromatograph of the present invention;

[0028] Figure 4 It is a right side cross-sectional structural schematic diagram of a chromatographic column storage device of a liquid chromatograph of the present invention;

[0029] Figure 5 It is a schematic diagram of a cross-sectional structure of a chromatographic column storage device of a liquid chromatograph of the present invention from a left side view;

[0030] Figure 6 A schematic diagram showing the structure of a buffer mechanism of a chromatographic column storage device of a liquid chromatograph of the present invention;

[0031] Figure 7It is a schematic cross-sectional structure diagram of a placement plate of a chromatographic column storage device of a liquid chromatograph of the present invention;

[0032] Figure 8 A schematic diagram showing the structure of a placement plate of a chromatographic column storage device of a liquid chromatograph according to the present invention;

[0033] Fig. 9 It is a front plan view structural schematic diagram of a chromatographic column storage device of a liquid chromatograph of the present invention.

[0034] In the figure: 1, storage box; 11, storage slot; 12, handle; 13, self-locking universal wheel; 14, protective corner seat; 2, support plate; 3, positioning column; 4, sealing door; 41, sealing strip; 42, visual window; 5, placement plate; 6, rotating mechanism; 61, driving motor; 62, sundries box; 7, extension mechanism; 71, transmission worm; 72, transmission worm wheel; 73, first pulley; 74, second pulley; 75, belt; 76, transmission column; 77, transmission Moving belt; 8. Buffer mechanism; 81. Base; 82. First rotating block; 83. Telescopic rod; 84. Connecting spring; 85. Second rotating block; 86. Top seat; 87. Insulation frame; 871. Sliding groove; 88. Insulation mold; 89. Chromatographic column test tube; 9. Insulation mechanism; 91. Vertical plate; 92. Bidirectional threaded rod; 93. Adjusting worm gear; 94. Adjusting worm; 95. Adjusting motor; 96. Moving seat; 97. Heating lamp holder; 98. Ultraviolet sterilization lamp. 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-Figure 9 The present invention provides a technical solution for a chromatographic column storage device of a liquid chromatograph: comprising a storage box 1 and a chromatographic column test tube 89, wherein support plates 2 are fixedly installed on the upper and lower sides of the right front end surface of the storage box 1, and positioning columns 3 are rotatably installed in the inner cavities of the two support plates 2, and a sealing door 4 is fixedly installed on the lower side wall of the positioning column 3, and a placement plate 5 is slidably installed on the bottom surface of the lower inner cavity of the storage box 1, and further comprising:

[0037] A rotating mechanism 6, which is arranged on the side wall of the positioning column 3, and is used to open and close the sealing door 4;

[0038] The extending mechanism 7 is arranged in the lower inner cavity of the storage box 1, and is used to extend and store the placement plate 5;

[0039] A buffer mechanism 8, which is disposed on the upper end surface of the placement plate 5 and is used to buffer the chromatographic column test tube 89;

[0040] The heat preservation mechanism 9 is arranged in the lower inner cavity of the storage box 1, and the heat preservation mechanism 9 is used for heat preservation and storage of the chromatographic column test tube 89.

[0041] Furthermore, the rotating mechanism 6 includes a driving motor 61 and a debris frame 62. The driving motor 61 is fixedly installed on the lower part of the front end surface of the storage box 1 through a frame. The output shaft end of the driving motor 61 is fixedly connected to the positioning column 3. The debris frame 62 is fixedly installed on the upper part of the outer wall of the positioning column 3. The debris frame 62 is arranged in a fan shape, and a storage groove 11 with the same volume as the debris frame 62 is opened on the upper part of the front side wall of the storage box 1.

[0042] Further, the extending mechanism 7 includes a transmission worm 71, a transmission worm wheel 72, a first pulley 73, a second pulley 74, a belt 75, a transmission column 76 and a transmission belt 77. The transmission column 76 is rotatably connected to the left and right side walls of the lower inner cavity of the storage box 1, and a transmission belt 77 is transmission-connected between the transmission columns 76 on the left and right sides. A transmission worm 71 is fixedly installed in the middle of the outer wall of the positioning column 3, and the rear side of the transmission worm 71 is meshingly connected with the transmission worm wheel 72. The left side wall of the transmission worm wheel 72 is fixedly connected with the first pulley 73, and the first pulley 73 is transmission-connected with the second pulley 74 through the belt 75.

[0043] The transmission worm gear 72 is rotationally connected to the storage box 1, and the transmission column 76 located at the right rear is fixedly connected to the second pulley 74. The diameter of the first pulley 73 is several times the diameter of the second pulley 74. A placement plate 5 is fixedly installed between the transmission belts 77 on the left and right sides.

[0044] When the worm gear 71 is in engagement with the worm gear 72, the worm gear 71 is in engagement with the worm gear 72, and the worm gear 71 is in engagement with the worm gear 72. When the worm gear 71 is in engagement with the worm gear 72, the worm gear 71 is in engagement with the worm gear 72, and the worm gear 71 is in engagement with the worm gear 72. The worm gear 71 is in engagement with the worm gear 72, and the worm gear 71 is in engagement with the worm gear 72. The worm gear 71 is in engagement with the worm gear 72, and the worm gear 71 is in engagement with the worm gear 72. The worm gear 71 is in engagement with the worm gear 72, and the worm gear 71 is in engagement with the worm gear 72. The worm gear 71 is in engagement with the worm gear 72, and the worm gear 71 is in engagement with the worm gear 72. The worm gear 71 is in engagement with the worm gear 72, and the worm gear 71 is in engagement with the worm gear 72. The worm gear 71 is in engagement with the worm gear 72, and the worm gear 71 is in engagement with the worm gear 71. The worm gear 71 is in engagement with the worm gear 71

[0045] Further, the buffer mechanism 8 includes a base 81, a first rotating block 82, a telescopic rod 83, a connecting spring 84, a second rotating block 85, a top seat 86, a heat preservation frame 87 and a heat preservation mold 88. The base 81 is arranged around the upper end surface of the placement plate 5. The inner cavity of each base 81 is fixedly installed with a first rotating block 82, and the telescopic rod 83 is fixedly installed on the side wall of the first rotating block 82. The telescopic rod end of the telescopic rod 83 is fixedly installed with a second rotating block 85, and the top seat 86 is rotatably installed on the side wall of the second rotating block 85.

[0046] An insulation frame 87 is fixedly installed in the middle of the upper end surface of the placement plate 5, and an insulation mold 88 is slidably installed in the inner cavity of the insulation frame 87. A chromatographic column test tube 89 is placed in the inner cavity of the insulation mold 88. A connecting spring 84 is fixedly installed on the side wall of the sleeve end of the telescopic rod 83. The end of the connecting spring 84 away from the telescopic rod 83 is fixedly installed on the side wall of the second rotating block 85, and the insulation mold 88 is fixedly connected to the top seat 86.

[0047] It should be noted that when the staff carries the entire device, the vibration force generated by the insulation mold 88 due to the bumps can be transmitted to the top seat 86, and then transmitted to the telescopic rod 83 through the second rotating block 85. At this time, due to the existence of the connecting spring 84 and the limiting effect of the insulation frame 87 on the insulation mold 88, the insulation mold 88 can move up and down in the inner cavity of the insulation frame 87. At this time, the vibration force of the telescopic rod 83 can be absorbed by the connecting spring 84 and decomposed under the friction between the insulation frame 87 and the insulation mold 88, which effectively reduces the bump frequency and amplitude of the chromatographic column test tube 89 on the placement plate 5, and greatly improves the safety performance of the entire device.

[0048] Further, the heat preservation mechanism 9 includes a vertical plate 91, a bidirectional threaded rod 92, an adjusting worm wheel 93, an adjusting worm 94, an adjusting motor 95, a moving seat 96, a heating lamp holder 97 and an ultraviolet sterilization lamp 98. The vertical plates 91 are fixedly installed on the left and right sides of the rear part of the upper end surface of the placement plate 5, the bidirectional threaded rod 92 is rotatably installed between the vertical plates 91 on the left and right sides, the adjusting worm wheel 93 is fixedly installed in the middle of the side wall of the bidirectional threaded rod 92, the adjusting motor 95 is fixedly installed in the middle of the inner side wall of the placement plate 5 through the frame, and the adjusting worm 94 is fixedly installed on the output shaft end of the adjusting motor 95;

[0049] The adjusting worm 94 is meshed with the adjusting worm wheel 93. The threads on the left and right sides of the bidirectional threaded rod 92 are in opposite directions. The left and right sides of the side walls of the bidirectional threaded rod 92 are threadedly mounted with a movable seat 96. A heating lamp seat 97 is fixedly mounted on the side wall of the movable seat 96. Ultraviolet sterilization lamps 98 are fixedly mounted on the left and right sides of the top surface of the lower inner cavity of the storage box 1.

[0050] A sliding groove 871 is provided in the middle of the rear side wall of the heat preservation frame 87 , and the movable seat 96 slides in the inner cavity of the sliding groove 871 .

[0051] It should be noted that when the sealing door 4 is closed, the placement plate 5 will be continuously retracted to the lower cavity of the storage box 1 for storage under the cooperation of the rotating mechanism 6 and the extending mechanism 7. At this time, the user can start the adjusting motor 95 to rotate the adjusting worm 94. Since the adjusting worm 94 is meshed and connected with the adjusting worm wheel 93, the adjusting worm wheel 93 will drive the bidirectional threaded rod 92 to rotate continuously. Since the moving seat 96 is threadedly installed on the left and right sides of the side wall of the bidirectional threaded rod 92, the sliding groove 871 opened in the middle of the rear side wall of the insulation frame 87 is connected to the moving seat 96. Under the limiting constraint of , the movable seats 96 on the left and right sides will move away from and close to each other, and constantly move in the inner cavity of the insulation frame 87. At this time, the heating lamp holder 97 on the movable seat 96 is turned on to evenly heat the insulation mold 88 to avoid local overheating in the insulation mold 88 causing damage to some chromatograph test tubes. When the insulation mold 88 is heated, the chromatographic column test tube 89 can be kept in a good environment. At the same time, two sets of ultraviolet sterilization lamps 98 are added to sterilize the surface of the chromatographic column test tube 89, effectively improving the service life of the entire device.

[0052] Furthermore, a handle 12 is fixedly installed on the upper end surface of the storage box 1, self-locking universal wheels 13 are fixedly installed around the lower end surface of the storage box 1, protective corner seats 14 are fixedly installed at each corner of the storage box 1, and the material of the protective corner seats 14 is flexible foam, a sealing strip 41 is fixedly installed around the inner side wall of the sealing door 4, and a visual window 42 is fixedly installed in the middle of the front end surface of the sealing door 4.

[0053] It should be noted that a visual window 42 is fixedly installed in the middle of the front end surface of the sealing door 4, so that the staff can quickly and clearly understand the changes in the chromatographic column test tube 89. The protective corner seat 14 is made of flexible foam, which can effectively avoid the possibility of damage to the entire device when it collides with hard objects. The self-locking universal wheels 13 and the carrying handle 12 can facilitate the staff to carry the entire device.

[0054] Working principle:

[0055] The worm gear 71 is fixedly mounted on the middle part of the outer wall of the positioning column 3, and the worm gear 71 is engaged with the worm gear 72, so that the first pulley 73 of the driving worm gear 71 can be driven by the worm gear 71 to rotate. Under the cooperation of the belt 75, the second pulley 74 also rotates, and the driving column 76 drives the driving belt 77 to rotate. The placing plate 5 is fixedly mounted between the driving belts 77 on the left and right sides. At this time, with the continuous operation of the driving belt 77, the placing plate 5 will continuously move toward the front part of the inner cavity at the lower side of the storage box 1, and finally be pushed out to the outside of the storage box 1, so that the staff can take and store the chromatograph test tubes on the placing plate 5 conveniently, thereby greatly improving the working efficiency of the staff.

[0056] When the sealing door 4 is closed, the placement plate 5 will be continuously retracted to the lower cavity of the storage box 1 for storage under the cooperation of the rotating mechanism 6 and the extending mechanism 7. At this time, the user can start the adjusting motor 95 to rotate the adjusting worm 94. Since the adjusting worm 94 is meshed and connected with the adjusting worm wheel 93, the adjusting worm wheel 93 will drive the bidirectional threaded rod 92 to rotate continuously. Since the moving seats 96 are threadedly installed on the left and right sides of the side walls of the bidirectional threaded rod 92, the sliding groove 871 opened in the middle of the rear side wall of the insulation frame 87 limits the moving seat 96 by about Under the action of the beam, the movable seats 96 on the left and right sides will move away from and close to each other, and constantly move in the inner cavity of the insulation frame 87. At this time, the heating lamp holder 97 on the movable seat 96 is turned on to evenly heat the insulation mold 88 to avoid local overheating in the insulation mold 88 causing damage to some chromatograph test tubes. When the insulation mold 88 is heated, the chromatographic column test tube 89 can be kept in a good environment. At the same time, two sets of ultraviolet sterilization lamps 98 are added to sterilize the surface of the chromatographic column test tube 89, effectively increasing the service life of the entire device;

[0057] When the staff carries the entire device, the vibration force generated by the insulation mold 88 due to the bumps can be transmitted to the top seat 86, and then transmitted to the telescopic rod 83 through the second rotating block 85. At this time, due to the existence of the connecting spring 84 and the limiting effect of the insulation frame 87 on the insulation mold 88, the insulation mold 88 can move up and down in the inner cavity of the insulation frame 87. At this time, the vibration force of the telescopic rod 83 can be absorbed by the connecting spring 84 and decomposed under the friction between the insulation frame 87 and the insulation mold 88, thereby effectively reducing the bump frequency and amplitude of the chromatographic column test tube 89 on the placement plate 5, and greatly improving the safety performance of the entire device.

[0058] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A chromatographic column storage device for a liquid chromatograph, comprising a storage box (1) and a chromatographic column test tube (89), wherein support plates (2) are fixedly installed on the upper and lower sides of the right front end surface of the storage box (1), and positioning columns (3) are rotatably installed in the inner cavities of the two support plates (2), and a sealing door (4) is fixedly installed on the lower part of the side wall of the positioning column (3), and a placement plate (5) is slidably installed on the bottom surface of the lower inner cavity of the storage box (1), characterized in that: Also includes: A rotating mechanism (6), wherein the rotating mechanism (6) is arranged on a side wall of the positioning column (3), and the rotating mechanism (6) is used to open and close the sealing door (4); An extending mechanism (7), the extending mechanism (7) being arranged in the lower inner cavity of the storage box (1), and the extending mechanism (7) being used to extend and store the placement plate (5); A buffer mechanism (8), the buffer mechanism (8) being arranged on the upper end surface of the placement plate (5), the buffer mechanism (8) being used to buffer the chromatographic column test tube (89); A heat preservation mechanism (9), the heat preservation mechanism (9) is arranged in the lower inner cavity of the storage box (1), and the heat preservation mechanism (9) is used to store the chromatographic column test tube (89) in a heat-insulated manner.

2. The chromatographic column storage device for a liquid chromatograph according to claim 1, characterized in that: The rotating mechanism (6) comprises a driving motor (61) and a sundries frame (62); the driving motor (61) is fixedly mounted on the lower part of the front end surface of the storage box (1) through a frame; the output shaft end of the driving motor (61) is fixedly connected to the positioning column (3); the sundries frame (62) is fixedly mounted on the upper part of the outer wall of the positioning column (3); the sundries frame (62) is arranged in a fan shape; and a storage groove (11) having the same volume as the sundries frame (62) is opened on the upper part of the front side wall of the storage box (1).

3. The chromatographic column storage device for a liquid chromatograph according to claim 1, characterized in that: The extending mechanism (7) comprises a transmission worm (71), a transmission worm wheel (72), a first belt pulley (73), a second belt pulley (74), a belt (75), a transmission column (76) and a transmission belt (77); the transmission columns (76) are rotatably connected to the left and right side walls of the lower inner cavity of the storage box (1); a transmission belt (77) is transmission-connected between the transmission columns (76) on the left and right sides; a transmission worm (71) is fixedly installed at the middle part of the outer wall of the positioning column (3); the rear side of the transmission worm (71) is meshingly connected to the transmission worm wheel (72); the left side wall of the transmission worm wheel (72) is fixedly connected to the first belt pulley (73); the first belt pulley (73) is transmission-connected to the second belt pulley (74) through the belt (75).

4. The chromatographic column storage device for a liquid chromatograph according to claim 3, characterized in that: The transmission worm wheel (72) is rotationally connected to the storage box (1), the transmission column (76) located at the right rear part is fixedly connected to the second belt pulley (74), the diameter of the first belt pulley (73) is several times the diameter of the second belt pulley (74), and a placement plate (5) is fixedly installed between the transmission belts (77) on the left and right sides.

5. The chromatographic column storage device for a liquid chromatograph according to claim 1, characterized in that: The buffer mechanism (8) comprises a base (81), a first rotating block (82), a telescopic rod (83), a connecting spring (84), a second rotating block (85), a top seat (86), a heat preservation frame (87) and a heat preservation mold (88); the base (81) is arranged around the upper end surface of the placement plate (5); the inner cavity of each base (81) is fixedly mounted with a first rotating block (82); the side wall of the first rotating block (82) is fixedly mounted with a telescopic rod (83); the telescopic rod end of the telescopic rod (83) is fixedly mounted with a second rotating block (85); and the side wall of the second rotating block (85) is rotatably mounted with a top seat (86).

6. The chromatographic column storage device for a liquid chromatograph according to claim 5, characterized in that: A heat preservation frame (87) is fixedly installed in the middle of the upper end surface of the placement plate (5), a heat preservation mold (88) is slidably installed in the inner cavity of the heat preservation frame (87), a chromatographic column test tube (89) is placed in the inner cavity of the heat preservation mold (88), a connecting spring (84) is fixedly installed on the side wall of the sleeve end of the telescopic rod (83), one end of the connecting spring (84) away from the telescopic rod (83) is fixedly installed on the side wall of the second rotating block (85), and the heat preservation mold (88) is fixedly connected to the top seat (86).

7. The chromatographic column storage device for a liquid chromatograph according to claim 6, characterized in that: The heat preservation mechanism (9) comprises a vertical plate (91), a bidirectional threaded rod (92), an adjusting worm wheel (93), an adjusting worm (94), an adjusting motor (95), a movable seat (96), a heating lamp seat (97) and an ultraviolet sterilization lamp (98); the vertical plates (91) are fixedly mounted on the left and right sides of the rear portion of the upper end surface of the placement plate (5); a bidirectional threaded rod (92) is rotatably mounted between the vertical plates (91) on the left and right sides; an adjusting worm wheel (93) is fixedly mounted on the middle part of the side wall of the bidirectional threaded rod (92); an adjusting motor (95) is fixedly mounted on the middle part of the inner side wall of the placement plate (5) through a frame; and an adjusting worm (94) is fixedly mounted on the output shaft end of the adjusting motor (95).

8. The chromatographic column storage device for a liquid chromatograph according to claim 7, characterized in that: The adjusting worm (94) is meshedly connected with the adjusting worm wheel (93); the left and right sides of the bidirectional threaded rod (92) have opposite thread directions; the left and right sides of the side walls of the bidirectional threaded rod (92) are threadedly mounted with movable seats (96); a heating lamp seat (97) is fixedly mounted on the side walls of the movable seat (96); and ultraviolet sterilization lamps (98) are fixedly mounted on the left and right sides of the top surface of the lower inner cavity of the storage box (1).

9. The chromatographic column storage device for a liquid chromatograph according to claim 8, characterized in that: A sliding groove (871) is provided in the middle of the rear side wall of the heat preservation frame (87), and the movable seat (96) slides in the inner cavity of the sliding groove (871).

10. The chromatographic column storage device for a liquid chromatograph according to claim 1, characterized in that: A handle (12) is fixedly mounted on the upper end surface of the storage box (1), self-locking universal wheels (13) are fixedly mounted around the lower end surface of the storage box (1), protective corner seats (14) are fixedly mounted at the corners of the storage box (1), and the material of the protective corner seats (14) is flexible foam, a sealing strip (41) is fixedly mounted around the inner side wall of the sealing door (4), and a visual window (42) is fixedly mounted in the middle of the front end surface of the sealing door (4).

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