Quartz connecting device of chromatographic column

Abstract

The utility model discloses a quartz connecting device of a chromatographic column, which relates to the technical field of chromatographic columns and comprises a chromatographic column main body. Through the arrangement of the sealing mechanism arranged at the bottom of the connector and the dismounting mechanism arranged at the bottom of the connector, when the connector is connected, the connector is rotated, so that the threaded column at the bottom of the connector rotates in the connecting pipe, and the sealing ring arranged in the sealing opening is extruded by the connector in the rotating process, so that the connector is dismounted. Secondly, two sets of limiting columns are aligned with limiting sliding rails and slide in the limiting sliding rails until the limiting columns are clamped, and the limiting columns are subjected to opposite acting force provided by buffer springs on the two sides, so that the connecting strength can be improved; and the limiting column can be taken out from the limiting sliding rail by reversely rotating the limiting column, so that the limiting column can be quickly assembled and disassembled with the external interface, and the mounting speed is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chromatographic column, specifically is quartz connecting device of chromatographic column. BACKGROUND

[0002] Chromatography is an important separation and quantitative analysis technique, widely used in chemistry, biochemistry, drug research and development, environmental monitoring and other fields. It separates the components in the mixture, realizes rapid, efficient and accurate quantitative analysis. As the core component of chromatographic analysis, according to different analysis requirements, it can be divided into liquid chromatographic column (HPLC) and gas chromatographic column (GC) and other types, and the quartz is directly affected to the accuracy and stability of the analysis result as the key component in the chromatographic system, and the quartz becomes the preferred connecting device material due to its excellent physical and chemical properties.

[0003] However, the existing quartz connecting device generally adopts thread connection, the sealing performance is poor, and the surface of the quartz connecting device does not have a protection structure, which is easy to be damaged by external force, therefore, a quartz connecting device for chromatographic column is provided. INVENTION CONTENTS

[0004] The utility model provides a quartz connecting device of chromatographic column has the advantages that the sealing performance and the protection performance are good to solve the problem that the existing sealing performance is poor and the surface of the quartz connecting device does not have a protection structure, and is easy to be damaged by external force.

[0005] In order to realize the sealing performance and the protection performance, the utility model provides the following technical scheme: a quartz connecting device for chromatographic column, including chromatographic column main part and the connecting head of setting in chromatographic column main part bottom, still include: set up in the sealing mechanism of connecting head bottom, the sealing mechanism includes threaded column, sealing mouth and sealing ring; The connecting pipe is arranged at the bottom of the connecting head, the bottom of the connecting pipe is fixedly connected with the quartz tube, the surface of the quartz tube is fixedly connected with the protection mechanism, the protection mechanism includes sponge pad and silica gel pad; The connecting port is arranged at the bottom of the quartz tube, the bottom of the connecting port is fixedly connected with the dismounting mechanism, and the dismounting mechanism includes quick release port, limiting sliding rail and limiting column.

[0006] As a preferred technical scheme of the utility model, the threaded column is fixedly connected to the bottom of the connecting head, the threaded column is threadedly connected to the inside of the connecting pipe, the surface of the connecting pipe is provided with a sealing mouth, and the inside of the sealing mouth is fixedly connected with a sealing ring.

[0007] As a preferred technical scheme of the utility model, the sponge pad is fixedly connected to the surface of the quartz tube, and the surface of the sponge pad is fixedly connected with a silica gel pad.

[0008] As a preferred technical solution of the present invention, the quick-release port is fixedly connected to the bottom of the connecting port, and two sets of limiting slide rails are provided on the surface of the quick-release port. The internal sliding connection of the limiting slide rails is connected to the limiting column.

[0009] As a preferred technical solution of the present invention, the bottom of the limiting column is fixedly connected to an external interface, and both sides of the surface of the external interface are fixedly connected to extension plates.

[0010] As a preferred technical solution of the present invention, a telescopic rod is fixedly connected to the surface of the extension plate, and a buffer spring is sleeved on the surface of the telescopic rod.

[0011] As a preferred technical solution of the present invention, a limit plate is overlapped on the top of the buffer spring, and the limit plate is fixedly connected to both sides of the surface of the connecting port.

[0012] As a preferred technical solution of the present invention, a sealing gasket is fixedly connected to the interior of the connecting port, and a plurality of baffles are fixedly connected to the interior of the quartz tube.

[0013] Compared with the prior art, the present invention provides a quartz connection device for a chromatographic column, which has the following beneficial effects:

[0014] 1. The quartz connection device of the chromatographic column is provided with a sealing mechanism at the bottom of the connector and a disassembly mechanism at the bottom of the connector port. When the interface is connected, the connector is rotated so that the threaded column at the bottom of the connector rotates inside the connecting tube. During the rotation, the sealing ring provided inside the sealing port is squeezed by the connector until the threaded column is tightened, thereby sealing the interface and improving the sealing performance of the equipment. Secondly, the two sets of limit columns are aligned with the limit slide rails and slide inside the limit slide rails until the limit columns are stuck and are subjected to the reverse force provided by the buffer springs on both sides, thereby improving the strength of the connection. The limit columns can be removed from the inside of the limit slide rails by rotating the limit columns in the opposite direction, and can be quickly assembled and disassembled with the external interface, thereby improving the installation speed.

[0015] 2. The quartz connection device of the chromatographic column is provided with a protective mechanism on the surface of the quartz tube. When in use, the sponge pad and the silicone pad are installed on the surface of the quartz tube to protect the quartz tube, thereby improving the protective performance of the quartz tube, preventing the quartz tube from being damaged by external force, and preventing dust from falling on the surface of the quartz tube, which affects the appearance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the chromatographic column of the utility model;

[0017] Figure 2 This is a schematic diagram of the sealing mechanism structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the disassembly mechanism structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the protective mechanism structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the overall structure of the utility model.

[0021] In the figure: 1. chromatographic column body; 2. connector; 3. sealing mechanism; 301. threaded column; 302. sealing port; 303. sealing ring; 4. connecting tube; 5. quartz tube; 6. protective mechanism; 601. sponge pad; 602. silicone pad; 7. connecting port; 8. disassembly mechanism; 801. quick release port; 802. limiting slide rail; 803. limiting column; 9. external interface; 10. extension plate; 11. telescopic rod; 12. buffer spring; 13. limiting plate; 14. sealing pad; 15. baffle. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 5 The utility model discloses a quartz connection device for a chromatographic column, comprising a chromatographic column body 1 and a connecting head 2 arranged at the bottom of the chromatographic column body 1, and further comprising: a sealing mechanism 3 arranged at the bottom of the connecting head 2, the sealing mechanism 3 comprising a threaded column 301, a sealing port 302 and a sealing ring 303; a connecting pipe 4 arranged at the bottom of the connecting head 2, the bottom of the connecting pipe 4 is fixedly connected to a quartz tube 5, the surface of the quartz tube 5 is fixedly connected to a protective mechanism 6, the protective mechanism 6 comprises a sponge pad 601 and a silicone pad 602; a connecting port 7 arranged at the bottom of the quartz tube 5, the bottom of the connecting port 7 is fixedly connected to a disassembly mechanism 8, the disassembly mechanism 8 comprises a quick-release port 801, a limiting slide rail 802 and a limiting column 803.

[0024] Specifically, the threaded column 301 is fixedly connected to the bottom of the connector 2 , and the threaded column 301 is threadedly connected to the inside of the connecting pipe 4 . A sealing opening 302 is opened on the surface of the connecting pipe 4 , and a sealing ring 303 is fixedly connected to the inside of the sealing opening 302 .

[0025] In this embodiment, when making an interface connection, the connector 2 is rotated so that the threaded column 301 at the bottom of the connector 2 rotates inside the connecting tube 4. During the rotation, the sealing ring 303 arranged inside the sealing port 302 is squeezed by the connector 2 until the threaded column 301 is tightened.

[0026] Specifically, the sponge pad 601 is fixedly connected to the surface of the quartz tube 5 , and the surface of the sponge pad 601 is fixedly connected to the silicone pad 602 .

[0027] In this embodiment, a sponge pad 601 and a silicone pad 602 are installed on the surface of the quartz tube 5 to protect the quartz tube 5 and improve the protection performance of the quartz tube 5 .

[0028] Specifically, the quick release opening 801 is fixedly connected to the bottom of the connection opening 7 . Two sets of limiting slide rails 802 are provided on the surface of the quick release opening 801 . The limiting slide rails 802 are internally slidably connected to the limiting posts 803 .

[0029] In this embodiment, the two groups of limiting posts 803 are aligned with the limiting slide rails 802 and slide inside the limiting slide rails 802 until the limiting posts 803 are locked.

[0030] Specifically, the bottom of the limiting column 803 is fixedly connected to the external interface 9 , and both sides of the surface of the external interface 9 are fixedly connected to the extension plates 10 .

[0031] Specifically, a telescopic rod 11 is fixedly connected to the surface of the extension plate 10 , and a buffer spring 12 is sleeved on the surface of the telescopic rod 11 .

[0032] In this embodiment, the buffer spring 12 is squeezed and deformed to generate elastic potential energy, providing a reverse force to increase the connection strength.

[0033] Specifically, the top of the buffer spring 12 is overlapped with a limit plate 13 , and the limit plate 13 is fixedly connected to both sides of the surface of the connecting port 7 .

[0034] Specifically, a sealing gasket 14 is fixedly connected to the interior of the connecting port 7 , and a plurality of baffles 15 are fixedly connected to the interior of the quartz tube 5 .

[0035] The working principle and usage process of the present invention are as follows: when making an interface connection, the connector 2 is rotated so that the threaded column 301 at the bottom of the connector 2 rotates inside the connecting tube 4. During the rotation, the sealing ring 303 arranged inside the sealing port 302 is squeezed by the connector 2 until the threaded column 301 is tightened, thereby sealing the interface.

[0036] Align the two sets of limiting posts 803 with the limiting slide rails 802 and slide inside the limiting slide rails 802 until the limiting posts 803 are locked.

[0037] The sponge pad 601 and the silica gel pad 602 are installed on the surface of the quartz tube 5 to protect the quartz tube 5 and improve the protection performance of the quartz tube 5.

[0038] In summary, the quartz connection device of the chromatographic column can seal the interface by providing a sealing mechanism 3 at the bottom of the connector 2 and a disassembly mechanism 8 at the bottom of the connection port 7, thereby improving the sealing of the equipment, and can be quickly assembled and disassembled with the external interface 9 to improve the installation speed. By providing a protection mechanism 6 on the surface of the quartz tube 5, the quartz tube 5 is protected, thereby improving the protection performance of the quartz tube 5, preventing the quartz tube 5 from being damaged by external force, and preventing dust from falling on the surface of the quartz tube 5, thereby affecting the appearance of the equipment.

[0039] It should be noted that, in this document, terms such as "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quartz connection device for a chromatographic column, comprising a chromatographic column body (1) and a connector (2) arranged at the bottom of the chromatographic column body (1), characterized in that: Also includes: A sealing mechanism (3) is provided at the bottom of the connector (2), wherein the sealing mechanism (3) includes a threaded column (301), a sealing port (302) and a sealing ring (303); A connecting tube (4) is provided at the bottom of the connector (2), the bottom of the connecting tube (4) is fixedly connected to a quartz tube (5), the surface of the quartz tube (5) is fixedly connected to a protective mechanism (6), and the protective mechanism (6) includes a sponge pad (601) and a silicone pad (602); A connecting port (7) is provided at the bottom of the quartz tube (5), and a disassembly mechanism (8) is fixedly connected to the bottom of the connecting port (7). The disassembly mechanism (8) comprises a quick-release port (801), a limiting slide rail (802), and a limiting column (803).

2. The quartz connection device for a chromatographic column according to claim 1, characterized in that: The threaded column (301) is fixedly connected to the bottom of the connector (2), and the threaded column (301) is threadedly connected to the inside of the connecting pipe (4). A sealing opening (302) is provided on the surface of the connecting pipe (4), and a sealing ring (303) is fixedly connected to the inside of the sealing opening (302).

3. The quartz connection device for a chromatographic column according to claim 1, characterized in that: The sponge pad (601) is fixedly connected to the surface of the quartz tube (5), and a silica gel pad (602) is fixedly connected to the surface of the sponge pad (601).

4. The quartz connection device for a chromatographic column according to claim 1, characterized in that: The quick-release opening (801) is fixedly connected to the bottom of the connection opening (7), and two sets of limiting slide rails (802) are provided on the surface of the quick-release opening (801). The interior of the limiting slide rails (802) is slidably connected to the limiting posts (803).

5. The quartz connection device for a chromatographic column according to claim 1, characterized in that: The bottom of the limiting column (803) is fixedly connected to an external interface (9), and both sides of the surface of the external interface (9) are fixedly connected to extension plates (10).

6. The quartz connection device for a chromatographic column according to claim 5, characterized in that: A telescopic rod (11) is fixedly connected to the surface of the extension plate (10), and a buffer spring (12) is sleeved on the surface of the telescopic rod (11).

7. The quartz connection device for a chromatographic column according to claim 6, characterized in that: The top of the buffer spring (12) is overlapped with a limit plate (13), and the limit plate (13) is fixedly connected to both sides of the surface of the connection port (7).

8. The quartz connecting device for a chromatographic column according to claim 1, characterized in that: A sealing gasket (14) is fixedly connected to the interior of the connecting port (7), and a plurality of baffles (15) are fixedly connected to the interior of the quartz tube (5).

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