Chromatographic column sample separation device

Abstract

The present invention relates to the technical field of chromatographic column separation, and specifically to a chromatographic column sample separation device, comprising a body, a connecting pipe being fixedly connected to the right side of the body, a column being inserted at the bottom end of the connecting pipe, the column being detachably connected to the body, mounting grooves being provided on both the left and right sides of the top of the column, a mounting block being hinged inside the mounting groove; the beneficial effect is as follows: by providing a mounting groove on the upper side of the column and hingedly connecting the mounting block to the inner side of the mounting groove, a clamping block inside the mounting block can press the connecting pipe downward, thereby allowing the connecting pipe to fit tightly with the column, so that the air tightness of the connection will not be reduced, thereby preventing the connecting pipe from shaking, thereby improving the connection stability, thereby preventing external air from mixing into the connection, thereby not only preventing the detection accuracy from being reduced, but also preventing the separation effect from being reduced, thereby reducing the use cost.

Description

Technical Field

[0001] The invention relates to the technical field of chromatographic column separation, in particular to a chromatographic column sample separation device. Background Art

[0002] The chromatographic column sample separation device is an experimental device used to efficiently separate sample components. It uses the difference in affinity between the stationary phase and the mobile phase for different components to achieve separation. It is generally composed of a chromatographic column, an injection system, a detector, a data processing system and other structures. When in use, the sample to be tested is quantitatively introduced into the chromatographic column by using the injection system. The chromatographic column is filled with a stationary phase. When the mobile phase carries the sample through the chromatographic column, different components have different interaction forces with the stationary phase, resulting in different migration speeds, thereby achieving separation. When the components pass through the detector, corresponding electrical signal changes will occur, thereby converting the signal into peaks on the chromatogram. The data processing system can perform qualitative and quantitative analysis on the chromatogram.

[0003] In the prior art, when transporting a sample into a chromatographic column, a syringe is generally used. By inserting the needle of the syringe into the injection port of the chromatographic column injection valve, the sample can enter the interior of the chromatographic column through the pipeline and the syringe, so that the chromatographic column can separate the sample.

[0004] However, due to the high internal pressure of the chromatographic column, after long-term use, if the components such as the chromatographic column gasket are aged or damaged, the connection sealing will be reduced, and then some other parts will leak, thereby affecting the stability of the syringe needle and allowing external air to mix in, which will not only affect the accuracy of the analysis, but may also cause sample loss and cross-contamination, and take longer to inject samples, causing the chromatographic peak width to become wider, the peak height to decrease, and the column efficiency to deteriorate, thereby reducing the separation effect and reducing the economic efficiency of use. Summary of the invention

[0005] The object of the present invention is to provide a chromatographic column sample separation device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a chromatographic column sample separation device comprises a body, the right side of the body is fixedly connected with a connecting tube, the bottom end of the connecting tube is plugged with a column, the column is detachably connected to the body, the top left and right sides of the column are provided with mounting grooves, the interior of the mounting groove is hinged with a mounting block, the inner upper side of the mounting block is provided with a slide groove 1, the interior of the slide groove 1 is slidably connected with a clamping block 1, the bottom end of the clamping block 1 is fitted with the outer side of the top end of the connecting tube, the bottom end of the clamping block 1 is slidably connected with a clamping block 2, the bottom end of the clamping block 2 is fitted with the outer side of the top end of the connecting tube, two receiving grooves are provided inside the separated sides of the two mounting blocks, the interior of the receiving groove is hinged with a telescopic rod, the other end of the telescopic rod is hinged with an insert block, and the insert block is inserted into the interior of the mounting groove.

[0007] Preferably, two placement grooves are provided on the lower inner side of the clamping block 1, a sliding groove 2 is provided on the upper inner wall of the placement groove, a connecting rod is slidably connected inside the placement groove, the bottom end of the connecting rod is fixedly connected to the top end of the clamping block 2, an elastic member 1 is sleeved on the outside of the connecting rod, the top end of the connecting rod is fixedly connected to a placement sheet, the top end of the placement sheet is fixedly connected to a placement rod, and the top end of the placement rod is fixedly connected to an inclined block 1.

[0008] Preferably, a limiting groove 1 is provided on both the front and rear sides inside the clamping block 1, the limiting groove 1 is internally slidably connected to a limiting block 1, the separated sides of the two limiting blocks 1 are respectively fixedly connected to the front and rear sides of the inner wall of the sliding groove 1, and the adjacent sides of the limiting blocks 1 on the left and right sides are fixedly connected with a push rod.

[0009] Preferably, an extrusion groove is provided on the lower side of the inner wall of the slide groove one, and a limiting groove two is provided on the separated sides of the two clamping blocks one, the inner side of the limiting groove two is slidably connected to the limiting block two, the side of the limiting block two away from the limiting groove two is fixedly connected to the inclined block two, the bottom end of the inclined block two is fixedly connected to the extrusion rod one, the outer side of the extrusion rod one is provided with an elastic part two, the bottom end of the extrusion rod one is fixedly connected to the extrusion sheet, and the bottom end of the extrusion sheet is fixedly connected to the extrusion rod two.

[0010] Preferably, one end of the elastic member 1 is fixedly connected to the inner wall of the placement groove, the other end of the elastic member 1 is fixedly connected to the bottom end of the placement sheet, and the placement sheet is slidably connected to the inside of the placement groove.

[0011] Preferably, one side of the placement rod is slidably connected to the inside of the second slide groove, the other side of the placement rod is slidably connected to the inside of the placement groove, and the inclined block 1 is slidably connected to the inside of the second slide groove.

[0012] Preferably, the limit block 1 is a "T"-shaped block structure, one side of the push rod is an arc block structure, and is slidably connected to the inside of the slide groove 2, and the arc block of the push rod is slidably connected to the inclined surface of the inclined block 1, and the other side of the push rod is slidably connected to the inside of the limit groove 1.

[0013] Preferably, the inclined surface of the clamping block 1 slides with the inclined surface of the inclined block 2, the limiting block 2 is a "T"-shaped block structure, and the inclined block 2 is slidably connected to the inside of the sliding groove 1.

[0014] Preferably, one end of the second elastic member is fixedly connected to the inner wall of the extrusion groove, and the other side of the second elastic member is fixedly connected to the top end of the extrusion sheet, and the extrusion sheet is slidably connected to the inside of the extrusion groove.

[0015] Preferably, one side of the second extrusion rod is an arc block structure and is slidably connected to the inside of the installation groove, and the other side of the second extrusion rod is slidably connected to the inside of the extrusion groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a chromatographic column sample separation device, which opens a mounting groove on the upper side of a column body and hinges a mounting block on the inner side of the mounting groove, so that a clamping block inside the mounting block can press a connecting tube downward, thereby allowing the connecting tube to fit tightly with the column body, thereby preventing the air tightness of the connection from being reduced, preventing the connecting tube from shaking, and improving the connection stability, thereby preventing external air from mixing into the connection, thereby not only preventing the detection accuracy from being reduced, but also preventing the separation effect from being reduced, thereby reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of the present invention; Figure 2 It is a schematic diagram of the column structure of the present invention; Figure 3 For the present invention Figure 2 Structural cross-section at AA in the middle; Figure 4 For the present invention Figure 3 A magnified view of the structure at center; Figure 5 For the present invention Figure 3 A magnified view of the structure at B in the middle; Figure 6 For the present invention Figure 3 A magnified view of the structure at C in the middle; Figure 7 This is a schematic diagram of the installation block structure of the present invention; Figure 8 For the present invention Figure 7 Structural cross-section at the middle BB; Fig. 9 For the present invention Figure 8 A magnified view of the structure at D in the middle; Fig.10 For the present invention Figure 7 Structural cross-section at the middle CC; Fig.11 For the present invention Fig.10 Enlarged view of the structure at point E in the middle.

[0018] In the figure: 1, machine body; 2, connecting pipe; 3, column; 4, mounting groove; 5, mounting block; 6, clamping block 1; 7, limiting groove 1; 8, limiting block 1; 9, slide groove 1; 10, slide groove 2; 11, placement groove; 12, push rod; 13, inclined block 1; 14, placement rod; 15, placement sheet; 16, connecting rod; 17, elastic member 1; 18, clamping block 2; 19, limiting groove 2; 20, limiting block 2; 21, inclined block 2; 22, extrusion rod; 23, elastic member 2; 24, extrusion sheet; 25, extrusion rod 2; 26, extrusion groove; 27, storage groove; 28, telescopic rod; 29, plug block. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0020] Example 1: Please refer to Figures 1 to 11The present invention provides a technical solution: a chromatographic column sample separation device, comprising a body 1, a detector and a data processing system are arranged inside the body 1, a connecting tube 2 is fixedly connected to the right side of the body 1, a column 3 is plugged into the bottom end of the connecting tube 2, the connecting tube 2 is used to guide the sample to the inside of the column 3, the column 3 can be detachably connected to the body 1, so that the column 3 can be conveniently installed, when in use, the sample to be tested is quantitatively introduced into the inside of the column 3 by using the connecting tube 2, the column 3 is filled with a stationary phase, when the mobile phase carries the sample through the chromatographic column, different components Different interaction forces with the stationary phase result in different migration speeds, thereby achieving separation. When the components pass through the detector, corresponding electrical signal changes will be generated, thereby converting the signals into peaks on the chromatogram. The data processing system can perform qualitative and quantitative analysis on the chromatogram. The top left and right sides of the column 3 are provided with mounting grooves 4, and the interior of the mounting groove 4 is hinged with a mounting block 5, which provides a mounting space for the mounting block 5. A slide groove 9 is provided on the upper side of the interior of the mounting block 5, and a clamping block 6 is slidably connected to the interior of the slide groove 9, and the slide groove 9 serves as a limit for the clamping block 6. The clamp block 16 can slide smoothly, and the bottom end of the clamp block 16 fits with the outer side of the top end of the connecting tube 2, so that the clamp block 16 can limit the connecting tube 2, thereby making the connecting tube 2 and the column 3 more tightly connected. The bottom end of the clamp block 16 is slidably connected with the clamp block 2 18, and the clamp block 16 has a limiting effect on the clamp block 2 18, so that the clamp block 2 18 will not deviate when sliding. The bottom end of the clamp block 2 18 fits with the outer side of the top end of the connecting tube 2, and the bottom end of the clamp block 2 18 is equipped with a plurality of protrusions, so that the friction between the clamp block 2 18 and the connecting tube 2 is greater. The clamp block 2 18 is used to strengthen the limiting position of the clamp block 1 6 on the connecting pipe 2, so that the connection between the connecting pipe 2 and the column 3 is more stable. Two receiving grooves 27 are provided inside the separated sides of the two mounting blocks 5. A telescopic rod 28 is hinged inside the receiving groove 27. The receiving groove 27 provides an installation space for the telescopic rod 28. The other end of the telescopic rod 28 is hinged with an insert block 29, which is inserted into the inside of the mounting groove 4. The telescopic rod 28 and the insert block 29 are used together to support the mounting block 5, so that the clamping of the connecting pipe 2 by the clamp block 1 6 inside the mounting block 5 is more stable.

[0021] When the connecting tube 2 is inserted into the column 3, the mounting block 5 is turned over by buckling the mounting block 5, so that the inner side of the mounting block 5 can fit with the outer side of the connecting tube 2, and the two clamping blocks 1 6 are pulled out from the inside of the mounting block 5, so that the bottom end of the clamping block 1 6 can fit with the upper side of the connecting tube 2, and the bottom end of the clamping block 2 18 can fit with the top of the connecting tube 2, so that the clamping block 2 18 can perform secondary position limiting on the connecting tube 2, so that the column 3 and the connecting tube 2 fit more closely, so that the air tightness of the connection will not be reduced, and the connecting tube 2 will not shake, so that the connection stability is better, and the outside air will not be mixed in, which will not only not reduce the detection accuracy, but also will not reduce the separation effect, so that the use cost can be reduced.

[0022] Embodiment 2: On the basis of embodiment 1, in order to facilitate the downward movement of clamp block 18, two placement grooves 11 are provided on the lower side of the inner part of clamp block 1 6, and a slide groove 10 is provided on the upper side of the inner wall of the placement groove 11. A connecting rod 16 is slidably connected to the inner part of the placement groove 11. The placement groove 11 limits the connecting rod 16 so that the connecting rod 16 will not deviate when sliding. The bottom end of the connecting rod 16 is fixedly connected to the top of clamp block 18. The connecting rod 16 is used to push clamp block 18 to move. An elastic member 17 is sleeved on the outside of the connecting rod 16. A placement sheet 15 is fixedly connected to the top of the connecting rod 16. One end of the elastic member 17 is fixedly connected to the inner wall of the placement groove 11, and the other end of the elastic member 17 is fixedly connected to the inner wall of the placement groove 11. The end is fixedly connected to the bottom end of the placement piece 15, and the placement piece 15 is slidably connected to the inside of the placement groove 11. The placement groove 11 limits the placement piece 15, so that the placement piece 15 can slide smoothly. The top of the placement piece 15 is fixedly connected with a placement rod 14, and one side of the placement rod 14 is slidably connected to the inside of the slide groove 10. The slide groove 10 limits the placement rod 14, so that the placement rod 14 will not deviate when sliding. The other side of the placement rod 14 is slidably connected to the inside of the placement groove 11. The top of the placement rod 14 is fixedly connected with an inclined block 13, and the inclined block 13 is slidably connected to the inside of the slide groove 10. The slide groove 10 limits the inclined block 13, so that the inclined block 13 can slide smoothly.

[0023] When it is necessary to move the clamp block 2 18, by pushing the inclined block 13 downward, the inclined block 13 can push the placement rod 14 to slide downward, and then the placement rod 14 can push the placement sheet 15 to move downward, and the placement sheet 15 can squeeze the elastic member 17 to deform, and the placement sheet 15 can push the connecting rod 16 to slide downward, so that the connecting rod 16 can push the clamp block 2 18 to fit the outer side of the top end of the connecting tube 2. Conversely, when the inclined block 13 is no longer pushed, the elastic member 17 can perform a reset movement, and then the elastic member 17 can push the placement sheet 15 to move upward, so that the placement sheet 15 can pull the clamp block 2 18 into the interior of the clamp block 1 6 through the connecting rod 16, and the placement sheet 15 can push the inclined block 13 to slide upward through the placement rod 14.

[0024] Embodiment 3: On the basis of embodiment 2, in order to realize the convenient pushing of the inclined block 13 and make the sliding of the clamping block 6 more stable, the inner front and rear sides of the clamping block 6 are provided with a limiting groove 7, and the inner sliding connection of the limiting groove 7 is connected to the limiting block 8. The limiting groove 7 plays a limiting role on the limiting block 8, so that the limiting block 8 will not deviate when sliding. The limiting block 8 is a "T"-shaped block structure, so that the limiting block 8 will not be separated from the inner side of the limiting groove 7. The separated sides of the two limiting blocks 8 are respectively fixedly connected to the inner wall of the sliding groove 9 on the front and rear sides, so that the limiting blocks 18 can be limited, and the adjacent sides of the limit blocks 18 on the left and right sides are fixedly connected with push rods 12, so that the limit blocks 18 can push the push rod 12 to move, one side of the push rod 12 is a circular arc block structure, and is slidably connected to the inside of the slide groove 10, and the circular arc block of the push rod 12 is slidably connected to the inclined surface of the inclined block 13, and the other side of the push rod 12 is slidably connected to the inside of the limit groove 17, and the limit groove 17 and the slide groove 10 limit the push rod 12, so that the push rod 12 can slide smoothly on the inclined surface of the inclined block 13, and then push the inclined block 13 to slide downward.

[0025] When the clamping block 16 moves inward, the limiting block 18 can slide inside the limiting groove 17, and the inclined surface of the inclined block 13 can slide at the arc of the push rod 12, so that the push rod 12 no longer limits the inclined block 13, so that the elastic member 17 can perform a reset movement, so that the elastic member 17 can pull the placement sheet 15 to move downward, so that the elastic member 17 can drive the connecting rod 16 to move downward, and then the connecting rod 16 can push the clamping block 2 18 to move downward, so that the clamping block 2 18 The bottom end is able to fit with the outer top end of the connecting tube 2. Conversely, when the clamping block 6 moves inward, the inclined surface of the inclined block 13 slides with the arc of the push rod 12, so that the inclined block 13 can slide upward, so that the inclined block 13 can pull the placement rod 14 to move upward, and then the placement rod 14 can pull the elastic member 17 through the placement sheet 15 to deform, and the placement sheet 15 can pull the connecting rod 16 to move upward, so that the connecting rod 16 can drive the clamping block 2 18 to enter the interior of the clamping block 6.

[0026] Embodiment 4: On the basis of embodiment 3, in order to realize the convenient pushing of clamp block 16, an extrusion groove 26 is provided on the lower side of the inner wall of slide groove 19, and the two clamp blocks 16 are provided with a limiting groove 21 on the separated side. The limiting groove 21 is internally slidably connected to the limiting block 20, and the limiting groove 21 has a limiting effect on the limiting block 20, so that the limiting block 20 can slide smoothly. The limiting block 20 is a "T"-shaped block structure, so that the limiting block 20 will not be separated from the inside of the limiting groove 219. The side of the limiting block 20 away from the limiting groove 21 is fixedly connected with an inclined block 21, and the inclined block 21 is slidably connected to the inside of the slide groove 19. The slide groove 19 has a limiting effect on the inclined block 21, so that the inclined block 21 can slide up and down smoothly. The inclined surface of the clamp block 16 slides with the inclined surface of the inclined block 21, so that the inclined block The second 21 is able to push the clamping block 6 to move, the bottom end of the inclined block 21 is fixedly connected with an extrusion rod 1 22, the outside of the extrusion rod 1 22 is sleeved with an elastic member 23, the bottom end of the extrusion rod 1 22 is fixedly connected with an extrusion sheet 24, the extrusion sheet 24 is slidably connected to the inside of the extrusion groove 26, the extrusion groove 26 limits the extrusion sheet 24, so that the extrusion sheet 24 will not deviate when sliding, one end of the elastic member 23 is fixedly connected to the inner wall of the extrusion groove 26, the other side of the elastic member 23 is fixedly connected to the top of the extrusion sheet 24, the bottom end of the extrusion sheet 24 is fixedly connected with an extrusion rod 25, one side of the extrusion rod 25 is a circular arc block structure, and is slidably connected to the inside of the mounting groove 4, the other side of the extrusion rod 25 is slidably connected to the inside of the extrusion groove 26, so that the extrusion rod 25 can push the inclined block 21 to move upward.

[0027] When the mounting block 5 is buckled out from the inside of the mounting groove 4, the arc of the extrusion rod 25 can slide inside the mounting groove 4, so that the extrusion rod 25 can slide upward, so that the extrusion rod 25 can push the extrusion sheet 24 to move upward, so that the extrusion sheet 24 can squeeze the elastic member 23 to deform, and the extrusion rod 25 can push the extrusion rod 1 22 to move upward, so that the extrusion rod 1 22 can push the inclined block 21 to move upward, so that the inclined surface of the inclined block 21 can slide with the inclined surface of the clamping block 1 6, so that the clamping block 1 6 can slide out from the inside of the slide groove 1 9, so that the clamping block 1 6 is able to limit the connecting pipe 2. Conversely, when the mounting block 5 slides into the interior of the mounting groove 4, the lower side of the extrusion rod 25 is able to enter the inner cavity of the mounting groove 4, so that the extrusion rod 1 22 is no longer restricted, so that the elastic member 23 is able to perform a reset movement, so that the elastic member 23 is able to push the extrusion sheet 24 to move downward, so that the extrusion rod 1 22 is able to pull the inclined block 21 to move downward, so that the inclined block 21 is able to drive the limiting block 20 to slide downward, so that the limiting block 20 is able to pull the clamping block 1 6 to move outward, so that the clamping block 1 6 is able to enter the interior of the slide groove 1 9.

[0028] Embodiment 5: Based on Embodiment 4, a method for using a chromatographic column sample separation device is proposed, comprising the following steps: Step 1: After the connecting tube 2 is plugged into the column 3, the mounting block 5 is turned over by buckling the mounting block 5, so that the inner side of the mounting block 5 can fit with the outer side of the connecting tube 2, so that the arc of the second extrusion rod 25 can slide inside the mounting groove 4, so that the second extrusion rod 25 can slide upward, so that the second extrusion rod 25 can push the extrusion sheet 24 to move upward, so that the extrusion sheet 24 can squeeze the elastic member 23 to deform, and the second extrusion rod 25 can push the first extrusion rod 22 to move upward, so that the first extrusion rod 22 can push the second inclined block 21 to move upward, so that the inclined surface of the second inclined block 21 can slide with the inclined surface of the clamping block 6, so that the clamping block 6 can slide out from the inside of the slide groove 9, so that the clamping block 6 can limit the connecting tube 2; Step 2: When the clamping block 16 moves inward, the limiting block 18 can slide inside the limiting groove 17, and the inclined surface of the inclined block 13 can slide at the arc of the push rod 12, so that the push rod 12 no longer limits the inclined block 13, so that the elastic member 17 can perform a reset movement, so that the elastic member 17 can pull the placement sheet 15 to move downward, so that the elastic member 17 can drive the connecting rod 16 to move downward, and then the connecting rod 16 can push the clamping block 2 18 to move downward, so that the bottom end of the clamping block 2 18 The top of the connecting tube 2 is fitted to the outside, and the telescopic rod 28 is then pulled out from the inside of the storage groove 27, and then one end of the telescopic rod 28 is pulled, and the plug block 29 is inserted into the inside of the installation groove 4, so that the column 3 and the connecting tube 2 are more closely fitted, so that the air tightness of the connection is not reduced, and the connecting tube 2 does not shake, so that the connection stability is better, and the outside air is not mixed in, which not only does not reduce the detection accuracy, but also does not reduce the separation effect, so that the use cost is reduced; Step 3: By pulling out the insert block 29 from the inside of the installation groove 4 and pushing the telescopic rod 28 to return to the inside of the storage groove 27, the installation block 5 is rotated in the opposite direction, so that the installation block 5 can slide into the inside of the installation groove 4, and then the lower side of the extrusion rod 25 can enter the inner cavity of the installation groove 4, so that the extrusion rod 1 22 is no longer restricted, so that the elastic member 23 can perform a reset movement, so that the elastic member 23 can push the extrusion sheet 24 to move downward, so that the extrusion rod 1 22 can pull the inclined block 21 to move downward, and then the inclined block 21 can drive the limit block 20 to slide downward, so that the limit block 20 can pull the clamping block 1 6 to move outward, so that the clamping block 1 6 can enter the inside of the slide groove 1 9; Step 4: When the clamping block 6 moves inward, the inclined surface of the inclined block 13 slides with the arc of the push rod 12, so that the inclined block 13 slides upward, so that the inclined block 13 pulls the placement rod 14 to move upward, and then the placement rod 14 pulls the elastic member 17 through the placement sheet 15 to deform, and the placement sheet 15 pulls the connecting rod 16 to move upward, so that the connecting rod 16 drives the clamping block 2 18 to enter the interior of the clamping block 6, so that the clamping block 6 and the clamping block 2 18 are detached from the upper side of the connecting tube 2, and the mounting block 5 is stored in the mounting groove 4 for the next use.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chromatographic column sample separation device, comprising a body (1), a connecting tube (2) fixedly connected to the right side of the body (1), a column (3) plugged into the bottom end of the connecting tube (2), and the column (3) detachably connected to the body (1), characterized in that: The top left and right sides of the column (3) are provided with mounting grooves (4), the mounting grooves (4) are hinged with mounting blocks (5), the upper side of the mounting block (5) is provided with a slide groove (9), the slide groove (9) is slidably connected with a clamping block (6), the bottom end of the clamping block (6) is fitted with the outer side of the top of the connecting tube (2), the bottom end of the clamping block (6) is slidably connected with a clamping block (18), the bottom end of the clamping block (18) is fitted with the outer side of the top of the connecting tube (2), and two receiving grooves (27) are provided inside the two mounting blocks (5) on the separated sides, the receiving grooves (27) are hinged with a telescopic rod (28), the other end of the telescopic rod (28) is hinged with an insert block (29), and the insert block (29) is inserted into the mounting groove (4).

2. A chromatographic column sample separation device according to claim 1, characterized in that: Two placement grooves (11) are provided on the lower inner side of the clamping block 1 (6), and a sliding groove 2 (10) is provided on the upper inner wall of the placement groove (11). A connecting rod (16) is slidably connected to the inside of the placement groove (11), and the bottom end of the connecting rod (16) is fixedly connected to the top end of the clamping block 2 (18). An elastic member 1 (17) is sleeved on the outside of the connecting rod (16), and the top end of the connecting rod (16) is fixedly connected to a placement sheet (15), and the top end of the placement sheet (15) is fixedly connected to a placement rod (14), and the top end of the placement rod (14) is fixedly connected to an inclined block 1 (13).

3. A chromatographic column sample separation device according to claim 2, characterized in that: The clamp block 1 (6) is provided with a limiting groove 1 (7) on both the front and rear sides thereof, the limiting groove 1 (7) is slidably connected to a limiting block 1 (8) inside, the two separated sides of the limiting blocks 1 (8) are respectively fixedly connected to the front and rear sides of the inner wall of the sliding groove 1 (9), and the adjacent sides of the limiting blocks 1 (8) on the left and right sides are fixedly connected to push rods (12).

4. A chromatographic column sample separation device according to claim 3, characterized in that: An extrusion groove (26) is provided on the lower side of the inner wall of the slide groove (9), and a limiting groove (19) is provided on the separated sides of the two clamping blocks (6). The limiting groove (19) is internally slidably connected to the limiting block (20), and the side of the limiting block (20) away from the limiting groove (19) is fixedly connected to the inclined block (21), and the bottom end of the inclined block (21) is fixedly connected to the extrusion rod (22), and the outside of the extrusion rod (22) is provided with an elastic member (23), and the bottom end of the extrusion rod (22) is fixedly connected to the extrusion sheet (24), and the bottom end of the extrusion sheet (24) is fixedly connected to the extrusion rod (25).

5. A chromatographic column sample separation device according to claim 2, characterized in that: One end of the elastic member 1 (17) is fixedly connected to the inner wall of the placement groove (11), and the other end of the elastic member 1 (17) is fixedly connected to the bottom end of the placement sheet (15), and the placement sheet (15) is slidably connected to the inside of the placement groove (11).

6. A chromatographic column sample separation device according to claim 2, characterized in that: One side of the placement rod (14) is slidably connected to the inside of the second slide groove (10), the other side of the placement rod (14) is slidably connected to the inside of the placement groove (11), and the inclined block (13) is slidably connected to the inside of the second slide groove (10).

7. A chromatographic column sample separation device according to claim 3, characterized in that: The limit block 1 (8) is a "T"-shaped block structure, one side of the push rod (12) is a circular arc block structure and is slidably connected to the inside of the slide groove 2 (10), and the circular arc block of the push rod (12) is slidably connected to the inclined surface of the inclined block 1 (13), and the other side of the push rod (12) is slidably connected to the inside of the limit groove 1 (7).

8. A chromatographic column sample separation device according to claim 4, characterized in that: The inclined surface of the clamping block 1 (6) slides with the inclined surface of the inclined block 2 (21); the limit block 2 (20) is a "T"-shaped block structure; the inclined block 2 (21) is slidably connected to the inside of the slide groove 1 (9).

9. A chromatographic column sample separation device according to claim 4, characterized in that: One end of the second elastic member (23) is fixedly connected to the inner wall of the extrusion groove (26), and the other side of the second elastic member (23) is fixedly connected to the top end of the extrusion sheet (24), and the extrusion sheet (24) is slidably connected to the inside of the extrusion groove (26).

10. A chromatographic column sample separation device according to claim 4, characterized in that: One side of the second extrusion rod (25) is an arc block structure and is slidably connected to the inside of the installation groove (4), and the other side of the second extrusion rod (25) is slidably connected to the inside of the extrusion groove (26).

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