Reusable chromatographic column protection device

Abstract

The utility model discloses a reusable chromatographic column protection device, which relates to the technical field of installation equipment and comprises a chromatographic column main body. Through the arrangement of the dismounting mechanism arranged on the surface of the rotating shaft and the filtering mechanism arranged in the filtering pipe, when a sample is pretreated, the sample enters the filtering pipe, large-particle impurities are filtered by the filtering net arranged in the filtering pipe, the impurities can be attached to the filtering net used for a long time, and the filtering effect is influenced, so that the filtering effect is influenced. When cleaning and replacing need to be conducted regularly, an inserting pipe can slide in a fixing pipe so as to extrude a buffer spring on one side until two sets of positioning hemispheres arranged on the surface of a rotating rod are separated from limiting grooves formed in the surface of a stop block, the position of the rotating rod is adjusted towards the two sides, then the inserting pipe is loosened, and the rotating rod is rotated; and the filter pipe on one side of the inserted pipe is quickly assembled and disassembled, and the whole filter pipe does not need to be disassembled, so that the cost consumption is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment technical field, concretely is a reusable chromatographic column protection device. BACKGROUND

[0002] The chromatographic column is composed of a column tube, a pressure cap, a sleeve (sealing ring), a screen plate (filter sheet), a joint and a screw. During the use of the chromatographic column, dust and impurities often enter the chromatographic column, affecting the peak effect and even causing damage to the chromatographic column.

[0003] The utility model discloses a chromatographic column protection device discloses a chromatographic column protection device, relates to detection equipment field, including chromatographic column, the both ends of chromatographic column are equipped with first joint, first joint connects protection mechanism, protection mechanism includes first screw rod, first screw rod is cylindrical, one end of first screw rod is equipped with tapering mechanism, the other end is equipped with second joint, tapering mechanism is equipped with first through -hole in horizontal direction, first screw rod is equipped with first screw hole in length direction, be equipped with filter mechanism in first screw hole, the bottom of second joint is equipped with second screw rod, second screw rod is equipped with second through -hole in length direction, the outer thread of second screw rod matches with the inner thread of first screw hole, second joint is equipped with second screw hole in length direction, the inner diameter of second through -hole is greater than the inner diameter of second screw hole. The utility model discloses convenient to use, is convenient for cleaning, saves the cost, can increase the service life of chromatographic column.

[0004] But the existing chromatographic column protection device fixed module and filter module are mostly fixed together, when replacing the filter module, need to remove integrally, the cost is higher, is not favorable to the reasonable utilization of resources, therefore puts forward a kind of reusable chromatographic column protection device. UTILITY MODEL CONTENTS

[0005] The utility model provides a reusable chromatographic column protection device to solve the problem that the existing fixed module and filter module are mostly fixed together.

[0006] The utility model provides following technical scheme: A kind of reusable chromatographic column protection device, including chromatographic column main body and the connecting port being arranged in chromatographic column main body one side, further include: the thread groove being arranged in connecting port inside, the inside thread groove is connected with connecting mechanism, the connecting mechanism includes horn type threaded rod and connecting pipe;Fixed pipe is arranged in the one side of connecting pipe, the surface of fixed pipe is fixedly connected with stop block, the surface of stop block is fixedly connected with buffer spring, the inside of fixed pipe is inserted with spigot, the one side of spigot is fixedly connected with filter tube, the both sides of filter tube are fixedly connected with sleeve pipe by connecting block, the surface of sleeve pipe is fixedly connected with two groups of rotating shafts, the surface of rotating shaft is rotatably connected with dismounting mechanism, the dismounting mechanism includes rotating rod and positioning hemisphere;Filtering mechanism is arranged in filter tube inside, and the filtering mechanism includes filter frame and filter screen.

[0007] As a preferred technical scheme of the utility model, the horn type threaded rod is threadedly connected to the inside of the thread groove, and the horn type threaded rod is fixedly connected with the connecting pipe on one side.

[0008] As a preferred technical scheme of the utility model, the rotating rod is rotatably connected to the surface of the rotating shaft, and the inner wall of the rotating rod is fixedly connected with the positioning hemisphere.

[0009] As a preferred technical scheme of the utility model, the filter frame is fixedly connected to the inside of the filter tube, and the filter frame is fixedly connected with the filter screen in the inside.

[0010] As a preferred technical scheme of the utility model, the inner wall of the sleeve pipe is connected with two groups of sliding blocks, and the sliding blocks are slidingly connected to the inside of the two groups of sliding grooves formed on the surface of the fixed pipe.

[0011] As a preferred technical scheme of the utility model, the surface of the spigot is sleeved with a sealing ring, and the sealing ring is inserted into the inner wall of the fixed pipe.

[0012] As a preferred technical scheme of the utility model, the surface of the stop block is formed with two groups of limiting grooves, and the limiting grooves are matched with the positioning hemisphere.

[0013] As a preferred technical scheme of the utility model, the side of the filter tube is formed with a threaded hole, and the inside of the threaded hole is threadedly connected to the external interface.

[0014] Compared with the prior art, the utility model provides a reusable chromatographic column protection device, which has the following beneficial effects:

[0015] 1. The reusable chromatographic column protection device, by setting the dismounting mechanism on the surface of the rotating shaft and the filter mechanism inside the filter pipe, when the sample is pretreated, the sample enters the inside of the filter pipe and is filtered by the filter screen arranged inside the filter pipe. The filter screen used for a long time will attach impurities, affecting the filtering effect, therefore, regular cleaning and replacement are needed, the plug-in pipe can slide inside the fixed pipe to press the buffer spring on one side, until the two groups of positioning hemispheres arranged on the surface of the rotating rod are separated from the limiting grooves arranged on the surface of the block, the position of the rotating rod is adjusted to the two sides, then the plug-in pipe is loosened, the filter pipe on one side of the plug-in pipe is quickly assembled and disassembled, the whole does not need to be disassembled, and the cost consumption is saved.

[0016] 2. The reusable chromatographic column protection device, by arranging the connecting mechanism in the threaded groove, when the chromatographic column is connected, the horn type threaded rod is inserted into the connecting port of the chromatographic column body, the horn type threaded rod is rotated, the horn type threaded rod is connected with the internal thread in the connecting port through the external thread, and the horn type threaded rod can be connected with the connecting port of the chromatographic column body with different diameters, and the flexibility of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a connecting mechanism structure schematic view of the utility model;

[0019] Figure 3 It is a dismounting mechanism structure schematic view of the utility model;

[0020] Figure 4 It is a filter mechanism structure schematic view of the utility model.

[0021] In the drawing: 1, chromatographic column body; 2, connecting port; 3, threaded groove; 4, connecting mechanism; 401, horn type threaded rod; 402, connecting pipe; 5, fixed pipe; 6, block; 7, buffer spring; 8, plug-in pipe; 9, filter pipe; 10, sleeve; 11, sealing ring; 12, rotating shaft; 13, dismounting mechanism; 1301, rotating rod; 1302, positioning hemisphere; 14, filter mechanism; 1401, filter frame; 1402, filter screen; 15, sliding block. DETAILED DESCRIPTION

[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0023] Please refer to Figures 1-4 The utility model discloses a reusable chromatographic column protection device, including chromatographic column main part 1 and set up in chromatographic column main part 1 one side's connecting mouth 2, still include: set up in the screw groove 3 of connecting mouth 2 inside, the screw groove 3 inside screw thread connection has the connecting mechanism 4, and the connecting mechanism 4 includes horn type screw rod 401 and connecting pipe 402, set up in the fixed pipe 5 of connecting pipe 402 one side, the surface fixed connection of fixed pipe 5 has the stopper 6, the surface fixed connection of stopper 6 has the buffer spring 7, and the inside spigot of fixed pipe 5 has the spigot pipe 8, and one side fixed connection of spigot pipe 8 has the filter pipe 9, and both sides fixed connection of filter pipe 9 has the sleeve pipe 10 through the connecting block, and the surface fixed connection of sleeve pipe 10 has two groups of rotating shaft 12, and the surface rotation connection of rotating shaft 12 has the dismounting mechanism 13, and the dismounting mechanism 13 includes rotating rod 1301 and positioning hemisphere 1302, set up in the filter mechanism 14 of filter pipe 9, and the filter mechanism 14 includes filter frame 1401 and filter screen 1402.

[0024] Specifically, the horn type screw rod 401 is screw connected in the screw groove 3, and one side of the horn type screw rod 401 is fixedly connected with the connecting pipe 402.

[0025] In the embodiment, when the chromatographic column is connected, the horn type screw rod 401 is inserted into the connecting mouth 2 of the chromatographic column main body 1, and the horn type screw rod 401 is rotated to be connected with the inner thread in the connecting mouth 2 through the outer thread, and the horn type screw rod 401 can be connected with the connecting mouth 2 of the chromatographic column main body 1 with different diameters.

[0026] Specifically, the rotating rod 1301 is rotationally connected to the surface of the rotating shaft 12, and the inner wall of the rotating rod 1301 is fixedly connected with the positioning hemisphere 1302.

[0027] In the embodiment, the spigot pipe 8 can slide in the fixed pipe 5 to press the buffer spring 7 on one side until the two groups of positioning hemispheres 1302 arranged on the surface of the rotating rod 1301 are separated from the limiting grooves arranged on the surface of the stopper 6, the position of the rotating rod 1301 is adjusted to the two sides, and then the spigot pipe 8 is loosened, so that the filter pipe 9 on one side of the spigot pipe 8 can be quickly assembled and disassembled.

[0028] Specifically, the filter frame 1401 is fixedly connected to the inside of the filter pipe 9, and the inside of the filter frame 1401 is fixedly connected with a filter screen 1402.

[0029] In the embodiment, the sample enters the inside of the filter pipe 9 and is filtered by the filter screen 1402 arranged in the inside of the filter pipe 9.

[0030] Specifically, the inner wall of the sleeve pipe 10 is track-connected with two groups of sliding blocks 15, and the sliding blocks 15 are slidingly connected to the inside of two groups of sliding grooves arranged on the surface of the fixed pipe 5.

[0031] Specifically, the surface of the plug-in pipe 8 is sleeved with a sealing ring 11, and the sealing ring 11 is plugged into the inner wall of the fixed pipe 5.

[0032] In the embodiment, the sealing ring 11 facilitates to improve the sealing performance of the equipment, and the sliding block 15 facilitates to improve the stability of the movement of the plug-in pipe 8.

[0033] Specifically, the surface of the stop block 6 is provided with two groups of limiting grooves, and the limiting grooves are matched with the positioning hemispheres 1302.

[0034] Specifically, one side of the filter pipe 9 is provided with a threaded hole, and the inside of the threaded hole is threadedly connected to an external interface.

[0035] The working principle and use process of the utility model are as follows: when the sample is pretreated, the sample enters the inside of the filter pipe 9 and is filtered by the filter screen 1402 arranged in the inside of the filter pipe 9. The filter screen 1402 used for a long time will be attached with impurities, which will affect the filtering effect. Therefore, the filter screen 1402 needs to be cleaned and replaced regularly. The plug-in pipe 8 can be slid in the inside of the fixed pipe 5 to press the buffer spring 7 on one side, until the two groups of positioning hemispheres 1302 arranged on the surface of the rotating rod 1301 are separated from the limiting grooves arranged on the surface of the stop block 6. After adjusting the position of the rotating rod 1301 to the two sides, the plug-in pipe 8 is loosened, so that the filter pipe 9 on one side of the plug-in pipe 8 can be quickly assembled and disassembled.

[0036] When the chromatographic column is connected, the trumpet type threaded rod 401 is inserted into the connecting port 2 of the chromatographic column body 1, and the trumpet type threaded rod 401 is rotated to be connected to the internal thread in the connecting port 2 through the external thread, and the trumpet type threaded rod 401 can be connected to the connecting port 2 of the chromatographic column body 1 with different diameters.

[0037] In summary, the reusable chromatographic column protection device, by arranging the dismounting mechanism 13 arranged on the surface of the rotating shaft 12 and the filtering mechanism 14 arranged in the inside of the filter pipe 9, the whole does not need to be dismounted, which saves the cost consumption, and by arranging the connecting mechanism 4 arranged in the threaded groove 3, the flexibility of the equipment is improved.

[0038] It has to be noted that, as used herein, such terms as "including", "including a", "having", "comprising", "containing", or any other similar term are intended to be encompassing for a passage, a method, an article, or an apparatus that fails to explicitly disclose separate instances of the listed elements. In other words, such terms are to be interpreted in the context as specifying instances of the listed elements but do not preclude the presence of additional elements in the passage, the method, the article, or the apparatus that are either listed elements or additional elements inherent to such passage, method, article, or apparatus.

[0039] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A reusable chromatographic column protection device, comprising a chromatographic column body (1) and a connecting port (2) arranged on one side of the chromatographic column body (1), characterized in that, Also include: Threaded groove (3) is arranged in the connecting port (2), the inside of the threaded groove (3) is screwed with connecting mechanism (4), the connecting mechanism (4) includes trumpet type threaded rod (401) and connecting pipe (402); The fixed pipe (5) is arranged on one side of the connecting pipe (402), the surface of the fixed pipe (5) is fixedly connected with the stop block (6), the surface of the stop block (6) is fixedly connected with the buffer spring (7), the inside of the fixed pipe (5) is inserted with the plug-in pipe (8), one side of the plug-in pipe (8) is fixedly connected with the filter pipe (9), both sides of the filter pipe (9) are fixedly connected with the sleeve pipe (10) through the connecting block, the surface of the sleeve pipe (10) is fixedly connected with two groups of rotating shafts (12), the surface of the rotating shaft (12) is rotatably connected with the dismounting mechanism (13), the dismounting mechanism (13) includes rotating rod (1301) and positioning hemisphere (1302); The filter mechanism (14) is arranged in the filter pipe (9), the filter mechanism (14) includes filter frame (1401) and filter screen (1402).

2. A reusable column protection device according to claim 1, characterized in that: The trumpet type threaded rod (401) is screwed in the inside of the threaded groove (3), one side of the trumpet type threaded rod (401) is fixedly connected with the connecting pipe (402).

3. A reusable column protection device according to claim 1, wherein: The rotating rod (1301) is rotatably connected to the surface of the rotating shaft (12), and the inner wall of the rotating rod (1301) is fixedly connected with the positioning hemisphere (1302).

4. A reusable column protection device according to claim 1, wherein: The filter frame (1401) is fixedly connected to the inside of the filter pipe (9), and the filter frame (1401) is fixedly connected with the filter screen (1402) in the inside.

5. A reusable column protection device according to claim 1, wherein: The inner wall of the sleeve pipe (10) is connected with two groups of sliding blocks (15), and the sliding blocks (15) are slidingly connected in the two groups of sliding grooves formed on the surface of the fixed pipe (5).

6. A reusable column protection device according to claim 1, wherein: The surface of the plug-in pipe (8) is sleeved with a sealing ring (11), and the sealing ring (11) is inserted into the inner wall of the fixed pipe (5).

7. A reusable column protection device according to claim 1, wherein: The surface of the stop block (6) is provided with two groups of limiting grooves, and the limiting grooves are matched with the positioning hemisphere (1302).

8. A reusable column protection device according to claim 1, wherein: One side of the filter pipe (9) is provided with a threaded hole, and the inside of the threaded hole is screwed with an external interface.

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