Chromatographic column guard column

Abstract

The utility model discloses a chromatographic column guard column and relates to the technical field of chromatographic columns. The protective column comprises a protective column body, two screwing pieces and two friction sleeves, the two screwing pieces are respectively screwed at two ends of the protective column body, the two friction sleeves are embedded on the peripheral side surfaces of the two screwing pieces, one end of each screwing piece is provided with a connecting part, and the other end of each screwing piece is provided with a connecting part. Two side plates are welded to one surfaces of the two connecting parts, the two side plates are of an arc-shaped plate body structure, the two side plates are oppositely arranged, fastening bolts are embedded into one surfaces of the two side plates, and the circumferential side faces of the two fastening bolts are in threaded connection fit with the two side plates correspondingly. By means of the structure of the side plates, the fastening bolts and the fixing plates, the connecting positions can be reinforced conveniently after the connecting parts are connected, the situation that connection is unstable in the using process is avoided, the connecting stability of the device in the using process is improved, and later-period using of the device is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of chromatographic columns, and particularly relates to a chromatographic column guard column. Background Technique

[0002] In the fields of biology, medicine, pharmacy, food science, and environmental science, liquid chromatography has been widely used to separate, analyze, and isolate the components of samples. A core component of the liquid chromatography system is the chromatographic column, and the most important component of the chromatographic column is the stationary phase. With the development of chromatographic columns, the particle size of the stationary phase has become finer and finer, resulting in higher and higher instrument pressure. Currently, liquid chromatography can be divided into ordinary high-performance liquid chromatography, rapid high-performance liquid chromatography, and ultra-high-performance liquid chromatography according to the pressure situation.

[0003] In the prior art, when the chromatographic guard column is used, the connection part is relatively simple, resulting in unstable connection during use, which is not convenient for later use, and the connection stability of the device during use is poor. Content of the Utility Model

[0004] The purpose of the utility model is to provide a chromatographic column guard column to solve the problem of unstable connection in the prior art.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a chromatographic column guard column, including a guard column body, screw connectors, and friction sleeves. The number of the screw connectors is two, and the two screw connectors are respectively screwed at both ends of the guard column body. The number of the friction sleeves is two, and the two friction sleeves are embedded on the circumferential sides of the two screw connectors. One end of each of the two screw connectors is provided with a connection part, and two side plates are welded on one surface of each of the two connection parts. The two side plates are arc-shaped plate structures, and the two side plates are arranged oppositely. Fastening bolts are embedded on one surface of each of the two side plates, and the circumferential sides of the two fastening bolts are respectively screwed and matched with the two side plates, which is convenient to reinforce the connection part after connection to avoid unstable connection during use, improve the connection stability of the device during use, and facilitate the later use of the device.

[0007] Furthermore, fastening sleeves are screwed at one end of each of the two fastening bolts, and fixing plates are welded at one end of each of the two fastening sleeves. The two fixing plates are arranged oppositely, and the two fixing plates are arc-shaped plate structures.

[0008] Furthermore, mounting parts are welded on two opposite surfaces of the guard column body, clamping grooves are arranged on one surface of each of the two mounting parts, clamping rods are embedded in each of the two clamping grooves, and one end of each of the two clamping rods extends outside the two clamping grooves respectively.

[0009] Further, protective plates are embedded at one end of each of the two clamping rods. The two protective plates are arranged oppositely. The two protective plates are arc-shaped plate structures, and a number of fixed sleeves are embedded on one surface of each of the two protective plates.

[0010] Further, dampers are embedded inside the fixed sleeves. One end of the damper is in sliding fit with the inside of the fixed sleeve, and the other end of the damper extends outside the fixed sleeve. A buffer plate is embedded at the other end of the damper.

[0011] Further, the two buffer plates are arranged oppositely. The two buffer plates are arc-shaped plate structures. Connecting springs are arranged between one surface of the fixed sleeve and one surface of the buffer plate. The connecting springs are wound around the circumferential side of the damper, which is convenient for buffering external impacts and collisions, improving the protection ability for the column body of the protection column, and ensuring the service life of the column body of the protection column.

[0012] Further, a number of guide rods are embedded at both ends of one buffer plate, and a number of guide grooves are provided at both ends of the other buffer plate.

[0013] Further, the positions of the guide grooves are adapted to the positions of the guide rods, and the circumferential side of the guide rod is in sliding fit with the inside of the guide groove.

[0014] The utility model has the following beneficial effects:

[0015] 1. Through the side plate, fastening bolt and fixing plate structures, the utility model facilitates the reinforcement of the connection part after connection, avoids the instability of the connection during use, improves the connection stability during the use of the device, and is convenient for the later use of the device.

[0016] 2. Through the damper, connecting spring and buffer plate structures, the utility model facilitates buffering external impacts and collisions, improves the protection ability for the column body of the protection column, and ensures the service life of the column body of the protection column.

[0017] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of a chromatographic column protection column of the utility model;

[0020] Figure 2 The front view structural schematic diagram of a guard column of the present utility model;

[0021] Figure 3 The top view structural schematic diagram of a guard column of the present utility model;

[0022] Figure 4 The right view structural schematic diagram of a guard column of the present utility model.

[0023] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Guard column body; 2. Screwed joint; 3. Friction sleeve; 4. Connection part; 5. Side plate; 6. Fastening bolt; 7. Fastening sleeve; 8. Fixed plate; 9. Mounting part; 10. Clamping rod; 11. Protection plate; 12. Fixed sleeve; 13. Damper; 14. Connection spring; 15. Buffer plate; 16. Guide rod; 17. Guide groove. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] Please refer to Figures 1 - 4As shown in the figure, the utility model relates to a chromatographic column guard column, which comprises a guard column body 1, screw connectors 2 and friction sleeves 3. The number of the screw connectors 2 is two, and the two screw connectors 2 are respectively screwed at both ends of the guard column body 1. The number of the friction sleeves 3 is two, and the two friction sleeves 3 are embedded on the circumferential sides of the two screw connectors 2. One end of each of the two screw connectors 2 is provided with a connecting portion 4. On one surface of each of the two connecting portions 4, two side plates 5 are welded. The two side plates 5 are arc-shaped plate structures. The two side plates 5 are arranged oppositely. On one surface of each of the two side plates 5, a fastening bolt 6 is embedded. The circumferential sides of the two fastening bolts 6 are respectively in screw fit with the two side plates 5, which is convenient for strengthening the connection part after the connection of the connecting portion 4, avoiding the unstable connection during use, improving the connection stability during the use of the device, facilitating the later use of the device. One end of each of the two fastening bolts 6 is screwed with a fastening sleeve 7. One end of each of the two fastening sleeves 7 is welded with a fixing plate 8. The two fixing plates 8 are arranged oppositely. The two fixing plates 8 are arc-shaped plate structures.

[0028] Mounting parts 9 are welded on two opposite surfaces of the guard column body 1. On one surface of each of the two mounting parts 9, a clamping groove is provided. A clamping rod 10 is embedded in each of the two clamping grooves. One end of each of the two clamping rods 10 extends to the outside of the two clamping grooves respectively.

[0029] On one end of each of the two clamping rods 10, a protection plate 11 is embedded. The two protection plates 11 are arranged oppositely. The two protection plates 11 are arc-shaped plate structures. On one surface of each of the two protection plates 11, a plurality of fixing sleeves 12 are embedded.

[0030] A damper 13 is embedded in each of the fixing sleeves 12. The circumferential side of one end of the damper 13 is in sliding fit with the inside of the fixing sleeve 12. The other end of the damper 13 extends to the outside of the fixing sleeve 12. A buffer plate 15 is embedded at the other end of the damper 13.

[0031] The two buffer plates 15 are arranged oppositely. The two buffer plates 15 are arc-shaped plate structures. A connecting spring 14 is arranged between one surface of the fixing sleeve 12 and one surface of the buffer plate 15. The connecting spring 14 is wound around the circumferential side of the damper 13, which is convenient for buffering the impact and collision from the outside, improving the protection ability for the guard column body 1 and ensuring the service life of the guard column body 1.

[0032] A plurality of guide rods 16 are embedded at both ends of one buffer plate 15. A plurality of guide grooves 17 are provided at both ends of the other buffer plate 15. The positions of the guide grooves 17 are adapted to the positions of the guide rods 16. The circumferential side of the guide rod 16 is in sliding fit with the inside of the guide groove 17.

[0033] Please refer to Figures 1 - 4As shown in the figure, the utility model is a chromatographic column guard column, and its usage method is as follows: Through the side plate 5, fastening bolts 6 and fixing plate 8 structures, it is convenient to reinforce the connection part after connection at the connection part 4, avoiding the unstable connection during use, improving the connection stability during the use of the device, and facilitating the later use of the device; Through the damper 13, connecting spring 14 and buffer plate 15 structures, it is convenient to buffer the impact and collision from the outside, improve the protection ability for the guard column body 1, and ensure the service life of the guard column body 1.

[0034] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0035] The preferred embodiments of the utility model disclosed above are only used to help illustrate the utility model. The preferred embodiments do not elaborate all the details, nor do they limit the utility model to the specific embodiments described. Obviously, according to the content of this specification, many modifications and variations can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that those skilled in the art in the relevant technical field can well understand and utilize the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A chromatographic column guard column, comprising a guard column body (1), a screwed part (2) and a friction sleeve (3), characterized in that: The number of the screw connectors (2) is two, and the two screw connectors (2) are respectively screwed at both ends of the protection column body (1). The number of the friction sleeves (3) is two, and the two friction sleeves (3) are fitted on the circumferential sides of the two screw connectors (2). One end of each of the two screw connectors (2) is provided with a connecting portion (4), and two side plates (5) are welded on one surface of each of the two connecting portions (4). The two side plates (5) are arc-shaped plate structures, the two side plates (5) are arranged oppositely, and fastening bolts (6) are fitted on one surface of each of the two side plates (5). The circumferential sides of the two fastening bolts (6) are respectively in screw fit with the two side plates (5).

2. A chromatographic column guard column according to claim 1, characterized in that, One end of each of the two fastening bolts (6) is screwed with a fastening sleeve (7), and a fixing plate (8) is welded on one end of each of the two fastening sleeves (7). The two fixing plates (8) are arranged oppositely, and the two fixing plates (8) are arc-shaped plate structures.

3. The guard column for a chromatographic column according to claim 1, characterized in that, Mounting members (9) are welded on two opposite surfaces of the protection column body (1). A clamping groove is provided on one surface of each of the two mounting members (9), and a clamping rod (10) is fitted in each of the two clamping grooves. One end of each of the two clamping rods (10) extends outside the two clamping grooves respectively.

4. A chromatographic column guard column according to claim 3, wherein, A protection plate (11) is fitted on one end of each of the two clamping rods (10). The two protection plates (11) are arranged oppositely, and the two protection plates (11) are arc-shaped plate structures. A plurality of fixing sleeves (12) are fitted on one surface of each of the two protection plates (11).

5. A chromatographic column guard column according to claim 4, characterized in that, Dampers (13) are fitted inside the fixing sleeves (12). The circumferential side of one end of each damper (13) is in sliding fit with the inside of the fixing sleeve (12). The other end of the damper (13) extends outside the fixing sleeve (12), and a buffer plate (15) is fitted on the other end of the damper (13).

6. The guard column of a chromatographic column according to claim 5, characterized in that, The two buffer plates (15) are arranged oppositely, and the two buffer plates (15) are arc-shaped plate structures. A connecting spring (14) is provided between one surface of the fixing sleeve (12) and one surface of the buffer plate (15), and the connecting spring (14) is wound around the circumferential side of the damper (13).

7. A guard column for a chromatographic column according to claim 6, characterized in that, A plurality of guide rods (16) are fitted at both ends of one buffer plate (15), and a plurality of guide grooves (17) are provided at both ends of the other buffer plate (15).

8. A chromatographic column guard column according to claim 7, characterized in that, The positions of the guide grooves (17) are adapted to the positions of the guide rods (16), and the circumferential side of the guide rod (16) is in sliding fit with the inside of the guide groove (17).

Images