Anti-collision liquid chromatographic column

Abstract

The utility model discloses an anti-collision liquid chromatographic column, which comprises a base, two connecting support mechanisms and a chromatographic column body, the number of the connecting support mechanisms is two, the two connecting support mechanisms are symmetrically arranged on the top of the base, the chromatographic column body is arranged on the two connecting support mechanisms, and side protection mechanisms are arranged on the left side and the right side of the base; the connecting and supporting mechanism comprises a fixing frame, and the fixing frame is welded to the top of the base. According to the anti-collision liquid chromatographic column, the structural design is reasonable, anti-collision protection of the liquid chromatographic column is achieved by adopting the stable supporting seat for supporting and cooperating with a plurality of groups of springs for synchronously providing shock absorption, the liquid chromatographic column has high stability after being installed, and the conditions of movement, collision and the like cannot be generated in the transportation process, so that unnecessary damage is avoided, and the production efficiency is improved. Meanwhile, the end head of the chromatographic column can be supported and protected, and a better use effect and practicability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of chromatographic columns, in particular to a liquid chromatographic column with anti-collision function. Background Technique

[0002] Chromatography is a separation and analysis method, and separation is the core. Therefore, the chromatographic column responsible for separation is the heart of the chromatographic system. The requirements for the chromatographic column are high column efficiency, good selectivity, fast analysis speed, etc.

[0003] In the patent document CN202021572060.8, "a liquid chromatographic column with anti-collision function" is disclosed, which includes a main body and a mounting block. A protective sleeve is arranged on the outer wall of the main body, and a mounting piece is arranged on one side of the protective sleeve close to the horizontal center line of the main body. A telescopic tube is installed on one side of the protective sleeve close to the vertical center line of the main body, and a clamping sleeve is fixed on the left side of the telescopic tube. A fixing block is fixed at the bottom of the clamping sleeve, and a limiting groove is arranged outside the fixing block. A heat-insulating cotton is fixed inside the protective sleeve. The anti-collision liquid chromatographic column uses the telescopic tube to make the fixing block and the limiting groove fit more tightly. The heat-insulating cotton can minimize the influence of the external temperature on the main body after the liquid to be detected is injected into the main body, so as to improve the separation degree of the chromatographic column efficiency. The setting of the shock-absorbing spring can reduce the vibration generated when the main body is impacted, thereby reducing the back pressure efficiency of the mobile phase and protecting the high-pressure constant-flow pump of the mobile phase, making the main body have higher use efficiency.

[0004] In this patent, the anti-collision effect of the inner chromatographic column is achieved by the method of an external circular ring with an internal spring. However, in the actual transportation process, the ring-shaped design is still not convenient for placement and stacking, and it is easy to cause rolling collision. At the same time, the two ends of the chromatographic column in this patent are directly exposed, and it is easy to be damaged and knocked due to external collision or the vibration of the spring of the chromatographic column itself, and it does not have a good use effect. Therefore, we propose a liquid chromatographic column with anti-collision function to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to provide a liquid chromatographic column with anti-collision function to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A liquid chromatographic column with anti-collision function, which includes a base, a connection and support mechanism, and a chromatographic column body. The number of the connection and support mechanisms is two and they are symmetrically installed on the top of the base. The chromatographic column body is installed on the two connection and support mechanisms. Side protection mechanisms are installed on both the left and right sides of the base;

[0007] The connecting and supporting mechanism includes a fixing frame welded to the top of the base. The bottom of the inner wall of the fixing frame is fixedly connected with a lower support sleeve through three first springs. A damper is connected between the fixing frame and the lower support sleeve and inside the first springs. One end of the fixing frame is welded with a fixed shaft, and a rotating plate is rotatably connected to the fixed shaft. A pull rod is arranged on the top of the rotating plate, the top end of the pull rod is fixedly connected with a pull handle, and the bottom end of the pull rod penetrates outside the rotating plate and is fixedly connected with an upper pressing seat. A second spring is sleeved on the surface of the pull rod below the rotating plate.

[0008] Further, first protective pads are fixedly connected to the inner arc surfaces of the lower support sleeve and the upper pressing seat, and the inner sides of the first protective pads are attached to the surface of the chromatographic column body.

[0009] Further, a shock-absorbing ring is fixedly connected to the position corresponding to the pull handle on the top of the rotating plate, and the shock-absorbing ring is specifically a rubber ring.

[0010] Further, the side protection mechanism includes a connecting block, and third springs are fixedly connected to the four corners of the top of the connecting block. The top ends of the four third springs are fixedly connected through a side support plate.

[0011] Further, a second protective pad is fixedly connected to the arc surface of the top of the side support plate, and the top of the second protective pad is in contact with the two ends of the chromatographic column body.

[0012] Further, telescopic rods are fixedly connected to the round holes on both sides of the base, and one end of each telescopic rod is fixedly connected to the connecting block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Two fixing frames are installed on the top of the base of the present utility model. After placing and clamping the chromatographic column body inside the two lower support sleeves, pull up the pull handle and the pull rod, and under the connection of the fixed shaft, rotate the rotating plate until the upper pressing seat rotates above the chromatographic column body. Then, when the hand is released, under the thrust of the second spring, the upper pressing seat is pushed to press and fix the chromatographic column body from above. Cooperating with the first spring and the damper at the bottom of the lower support sleeve, it plays a good shock-absorbing and protecting role. And under the connection of the telescopic rod, the connecting block can be pulled to the end of the chromatographic column body, and the third spring and the side support plate are used to support from below to realize the protection of the end. This anti-collision liquid chromatographic column has a reasonable structural design, adopts a stable support seat for support, and cooperates with multiple groups of springs to provide shock absorption synchronously to realize the anti-collision protection of the liquid chromatographic column. After installation, it has high stability and will not move or collide during transportation, thus avoiding unnecessary damage. At the same time, it can also support and protect the end of the chromatographic column, and has good use effect and practicability. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a three-dimensional structural schematic diagram of the connection and support mechanism of the present utility model;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the side protection mechanism of the present utility model.

[0018] In the figure: 1 base, 2 connection and support mechanism, 21 fixing frame, 22 first spring, 23 lower support sleeve, 24 damper, 25 fixed shaft, 26 rotating plate, 27 pull rod, 28 pull handle, 29 upper pressing seat, 210 second spring, 211 first protection pad, 212 shock-absorbing ring, 3 chromatographic column body, 4 side protection mechanism, 41 connection block, 42 third spring, 43 side support plate, 44 second protection pad, 5 telescopic rod. Specific embodiments

[0019] 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 belong to the scope of protection of the present utility model.

[0020] Please refer to Figures 1-3 , an anti-collision liquid chromatographic column, including a base 1, a connection and support mechanism 2 and a chromatographic column body 3. The number of the connection and support mechanisms 2 is two and they are symmetrically installed on the top of the base 1. The chromatographic column body 3 is installed on the two connection and support mechanisms 2. Side protection mechanisms 4 are installed on both the left and right sides of the base 1.

[0021] The connection and support mechanism 2 includes a fixing frame 21, the fixing frame 21 is welded to the top of the base 1, the bottom of the inner wall of the fixing frame 21 is fixedly connected with a lower support sleeve 23 through three first springs 22, and a damper 24 is connected between the fixing frame 21 and the lower support sleeve 23 and inside the first spring 22. One end of the fixing frame 21 is welded with a fixed shaft 25, a rotating plate 26 is rotatably connected to the fixed shaft 25, a pull rod 27 is arranged on the top of the rotating plate 26, the top end of the pull rod 27 is fixedly connected with a pull handle 28, the bottom end of the pull rod 27 penetrates outside the rotating plate 26 and is fixedly connected with an upper pressing seat 29, and a second spring 210 is sleeved on the surface of the pull rod 27 below the rotating plate 26.

[0022] Specifically, first protective pads 211 are fixedly connected to the inner arc surfaces of the lower support sleeve 23 and the upper pressing seat 29. The inner sides of the first protective pads 211 are in contact with the surface of the chromatographic column body 3. The first protective pads 211 can prevent the surface of the chromatographic column body 3 from directly contacting the inner side of the lower support sleeve 23 and the lower surface of the upper pressing seat 29, causing friction and wear. The first protective pads 211 can be made of rubber and can also provide a certain shock-absorbing and protective effect.

[0023] Specifically, a shock-absorbing ring 212 is fixedly connected to the top of the rotating plate 26 corresponding to the position of the pulling handle 28. The shock-absorbing ring 212 is specifically a rubber ring. The shock-absorbing ring 212 can prevent the second spring 210 from driving the pulling handle 28 to hard-impact the top of the rotating plate 26 after the pulling handle 28 is pulled upward and the hand is released.

[0024] Specifically, the side protection mechanism 4 includes a connecting block 41. At the four corners of the top of the connecting block 41, third springs 42 are fixedly connected. The top ends of the four third springs 42 are fixedly connected through a side support plate 43. By using the third springs 42 to support the side support plate 43, the end of the chromatographic column body 3 can be supported and protected.

[0025] Specifically, a second protective pad 44 is fixedly connected to the arc surface of the top of the side support plate 43. The top of the second protective pad 44 is in contact with the two ends of the chromatographic column body 3. The second protective pad 44 is made of rubber. Similarly, it can prevent the upper surface of the side support plate 43 from directly contacting the surface of the chromatographic column body 3, causing friction and wear.

[0026] Specifically, telescopic rods 5 are fixedly connected to the round holes on both sides of the base 1. One end of the telescopic rod 5 is fixedly connected to the connecting block 41. When the device is not in use, the side protection mechanism 4 can be retracted to the inside by using the telescopic rods 5, avoiding unnecessary space occupation. And the telescopic design can effectively adjust the support according to the position of the end of the chromatographic column body 3.

[0027] This anti-collision liquid chromatographic column has a reasonable structural design. It is supported by a stable support seat and uses multiple groups of springs to provide shock absorption synchronously to achieve anti-collision protection for the liquid chromatographic column. After installation, it has high stability and will not move or collide during transportation, thus avoiding unnecessary damage. At the same time, it can also support and protect the ends of the chromatographic column, having good use effects and practicality.

[0028] In use, two fixing brackets 21 are installed on the top of the base 1. After placing and clamping the chromatographic column body 3 inside two lower support sleeves 23, pull up the pull handle 28 and the pull rod 27, and under the connection of the fixed shaft 25, rotate the rotating plate 26 until the upper pressing seat 29 is rotated above the chromatographic column body 3. Then, when the hand is released, under the thrust of the second spring 210, the upper pressing seat 29 is pushed to press and fix the chromatographic column body 3 from above. Cooperating with the first spring 22 and the damper 24 at the bottom of the lower support sleeve 23, it plays a good role in shock absorption and protection. And under the connection of the telescopic rod 5, the connecting block 41 can be pulled to the end of the chromatographic column body 3, and supported from below by the third spring 42 and the side support plate 43 to achieve the protection of the end.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A collision-proof liquid chromatography column, comprising a base (1), a connection support mechanism (2) and a chromatography column body (3), characterized in that: The number of the connecting and supporting mechanisms (2) is two and they are symmetrically installed on the top of the base (1). The chromatographic column body (3) is installed on the two connecting and supporting mechanisms (2), and side protection mechanisms (4) are installed on both the left and right sides of the base (1). The connecting and supporting mechanism (2) includes a fixing frame (21), the fixing frame (21) is welded on the top of the base (1), the bottom of the inner wall of the fixing frame (21) is fixedly connected with a lower support sleeve (23) through three first springs (22), and a damper (24) is connected between the fixing frame (21) and the lower support sleeve (23) and inside the first spring (22). One end of the fixing frame (21) is welded with a fixing shaft (25), a rotating plate (26) is rotatably connected to the fixing shaft (25), a pull rod (27) is arranged on the top of the rotating plate (26), the top end of the pull rod (27) is fixedly connected with a pull handle (28), the bottom end of the pull rod (27) penetrates outside the rotating plate (26) and is fixedly connected with an upper pressing seat (29), and a second spring (210) is sleeved on the surface of the pull rod (27) below the rotating plate (26).

2. The anti-collision liquid chromatography column according to claim 1, wherein: First protective pads (211) are fixedly connected to the inner arc surfaces of the lower support sleeve (23) and the upper pressing seat (29), and the inner sides of the first protective pads (211) are attached to the surface of the chromatographic column body (3).

3. The collision-proof liquid chromatography column according to claim 2, characterized in that: A shock-absorbing ring (212) is fixedly connected to the position corresponding to the pull handle (28) on the top of the rotating plate (26), and the shock-absorbing ring (212) is specifically a rubber ring.

4. The anti-collision liquid chromatography column according to claim 3, characterized in that: The side protection mechanism (4) includes a connecting block (41), and four corners of the top of the connecting block (41) are fixedly connected with third springs (42), and the top ends of the four third springs (42) are fixedly connected through a side support plate (43).

5. A collision-proof liquid chromatography column according to claim 4, characterized in that: A second protective pad (44) is fixedly connected to the arc surface on the top of the side support plate (43), and the top of the second protective pad (44) is in contact with the two ends of the chromatographic column body (3).

6. The anti-collision liquid chromatography column according to claim 5, characterized in that: Expansion rods (5) are fixedly connected to the circular holes on both sides of the base (1), and one end of each expansion rod (5) is fixedly connected with the connecting block (41).

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