Chromatographic filter element replacing device

Abstract

The utility model provides a filter element replacing device of a chromatographic filter, which relates to the technical field of filter element replacing equipment and comprises a workbench, a rotating plate is movably mounted on the upper surface of the workbench, a first driving mechanism for controlling the rotating plate to rotate is arranged at the bottom of the workbench, a circular groove is formed in the upper surface of the rotating plate, and a second driving mechanism for controlling the rotating plate to rotate is arranged in the circular groove. Arc-shaped clamping plates are movably mounted on the two sides of the interior of the circular groove correspondingly, a protection pad is arranged on the surface of one side of each arc-shaped clamping plate, and a second driving mechanism used for controlling the arc-shaped clamping plates to move is arranged on one side of the rotating plate. Through the driving of the second driving motor and under the meshing action between the bidirectional screw rod and the screw rod sleeve, the connecting plate can drive the arc-shaped clamping plate to move to fix the position of the filter, so that the position of the filter does not shake in the replacement process of the filter element, and the replacement work of the filter element is more facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of filter element replacement equipment, in particular to a chromatographic filter element replacement device. Background Art

[0002] The chromatographic filter is an important component of the chromatograph. The function of the chromatographic filter is to remove impurities in the carrier gas or the detector gas as much as possible. The reduction of impurity content can effectively extend the service life of the chromatographic column and improve the analytical sensitivity. The chromatographic filter often needs to replace the internal filter element during use. For example, the patent with application number 202121486006.6 proposes a high-pressure filter element replacement device, which includes a lifting frame, a lifting mechanism, a fixed seat and a filter cup support mechanism. The lifting mechanism is connected to the end plate of the lifting frame through the screw sleeve of the lifting mechanism, the bridge arm at the lower end of the lifting frame cooperates with the fixed seat, the fixed seat is connected to the linear bearing of the filter cup support mechanism, and the upper end of the sliding rod of the filter cup support mechanism is connected to the limit plate of the lifting mechanism. The limit plate is located between the fixed seat and the end plate. By placing the filter cup on the filter cup support mechanism, the lifting mechanism drives the filter cup support mechanism to lift and lower to drive the filter cup to install and disassemble. The above scheme overcomes the problems of inconvenient installation and disassembly of the original filter cup, easy to slip and potential safety hazards, and has the characteristics of simple structure, convenient and quick replacement, not easy to slip, safe and reliable, and simple and convenient operation.

[0003] However, during use, the above-mentioned filter element replacement device does not have a mechanism to limit the filter. During the process of removing or installing the filter element, the filter is prone to position displacement, which in turn affects the removal and placement of the filter element, increases working time, and reduces work efficiency. Therefore, we have made improvements and proposed a chromatographic filter element replacement device. Utility Model Content

[0004] The main purpose of the utility model is to provide a chromatographic filter element replacement device, which can effectively solve the problem that when the filter element replacement device is in use, there is no mechanism to limit the filter, and the filter is prone to position displacement during the process of removing or installing the filter element, which in turn affects the removal and placement of the filter element, increases working time and reduces work efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A chromatographic filter element replacement device comprises a workbench, a rotating plate is movably mounted on the upper surface of the workbench, a first driving mechanism for controlling the rotation of the rotating plate is arranged at the bottom of the workbench, a circular groove is opened on the upper surface of the rotating plate, arc-shaped clamping plates are movably mounted on both sides of the inner part of the circular groove, a protective pad is arranged on one side surface of each arc-shaped clamping plate, and a second driving mechanism for controlling the movement of the arc-shaped clamping plate is arranged on one side of the rotating plate.

[0007] Preferably, the first driving mechanism comprises a mounting frame, the mounting frame is fixedly mounted on the lower surface of the workbench, a first driving motor is mounted on one side of the bottom of the mounting frame, and a first mounting rod is mounted on the output end of the first driving motor.

[0008] Preferably, one end of the first mounting rod is rotatably mounted on one side of the lower surface of the workbench, a driving gear is fixedly mounted on the rod body of the first mounting rod, and a second mounting rod is rotatably mounted on one side of the interior of the mounting frame.

[0009] Preferably, a driven gear is fixedly mounted on the rod body of the second mounting rod, the driven gear is meshed with the driving gear, and a rotating column is mounted on the top of the second mounting rod.

[0010] Preferably, one end of the rotating column passes through the workbench and is fixedly connected to the bottom center of the rotating plate, a rotation limit block is provided on the rod body of the rotating column, and a rotation limit groove cooperating with the rotation limit block is provided inside the workbench.

[0011] Preferably, mounting grooves are provided on both sides of the upper surface of the rotating plate, and the second driving mechanism includes a second driving motor, which is installed on one end surface of the rotating plate and located on one side of the mounting groove.

[0012] Preferably, a bidirectional screw is installed at the output end of the second drive motor, one end of the bidirectional screw is rotatably arranged on the inner wall of one end of the installation groove, and screw sleeves are movably installed on the rod bodies on both sides of the bidirectional screw.

[0013] Preferably, a connecting plate is installed on the top of each screw sleeve, and one end of each connecting plate is fixedly connected to one side of the arc-shaped clamping plate at a corresponding position.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] By driving the second driving motor, under the meshing action between the bidirectional lead screw and the lead screw sleeve, the connecting plate can drive the arc-shaped clamping plate to move, and the position of the filter is fixed, so that the position of the filter will not shake during the replacement process of the filter element, which is more conducive to the replacement of the filter element. The first driving motor drives the first mounting rod to rotate, and under the meshing action between the driving gear and the driven gear, the entire rotating plate can be driven to rotate, so the position of the filter can be adjusted, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a side view of the utility model;

[0018] Figure 3 For the utility model Figure 2 Schematic diagram of the three-dimensional structure of the cross section at AA in the middle;

[0019] Figure 4 For the utility model Figure 2 Schematic diagram of the three-dimensional structure of the cross section at BB in the middle.

[0020] In the figure: 1, workbench; 101, rotation limit groove; 2, rotating plate; 201, mounting groove; 3, first driving mechanism; 301, mounting frame; 302, first driving motor; 303, first mounting rod; 304, driving gear; 305, second mounting rod; 306, driven gear; 307, rotating column; 3071, rotation limit block; 4, arc clamping plate; 5, protection pad; 6, second driving mechanism; 601, second driving motor; 602, bidirectional screw; 603, screw sleeve; 604, connecting plate; 7, circular groove. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1As shown, a chromatographic filter element replacement device comprises a workbench 1, a rotating plate 2 is movably mounted on the upper surface of the workbench 1, a first driving mechanism 3 for controlling the rotation of the rotating plate 2 is arranged at the bottom of the workbench 1, a circular groove 7 is opened on the upper surface of the rotating plate 2, arc-shaped clamping plates 4 are movably mounted on both sides of the inner part of the circular groove 7, a protective pad 5 is arranged on one side surface of each arc-shaped clamping plate 4, and a second driving mechanism 6 for controlling the movement of the arc-shaped clamping plate 4 is arranged on one side of the rotating plate 2.

[0023] like Figure 2 , Figure 3 , Figure 4 As shown, the first driving mechanism 3 includes a mounting frame 301, which is fixedly mounted on the lower surface of the workbench 1, a first driving motor 302 is mounted on one side of the bottom of the mounting frame 301, a first mounting rod 303 is mounted on the output end of the first driving motor 302, one end of the first mounting rod 303 is rotatably arranged on one side of the lower surface of the workbench 1, a driving gear 304 is fixedly mounted on the rod body of the first mounting rod 303, a second mounting rod 305 is rotatably mounted on one side of the inner side of the mounting frame 301, a driven gear 306 is fixedly mounted on the rod body of the second mounting rod 305, the driven gear 306 and the driving gear 304 are meshed with each other, a rotating column 307 is mounted on the top of the second mounting rod 305, one end of the rotating column 307 passes through the workbench 1 and is fixedly connected to the bottom center of the rotating plate 2, a rotating limit block 3071 is arranged on the rod body of the rotating column 307, and a rotating limit groove 101 cooperating with the rotating limit block 3071 is arranged inside the workbench 1.

[0024] Driven by the first driving motor 302, under the meshing transmission action between the driving gear 304 and the driven gear 306, the rotating plate 2 can be driven to rotate as a whole, thereby adjusting the position of the filter to facilitate the replacement of the filter element. Through the rotation cooperation between the rotating limit block 3071 and the rotating limit groove 101, the moving trajectory of the rotating column 307 can be limited, making the rotating column 307 more stable during the rotation process.

[0025] like Figure 4 As shown, mounting grooves 201 are provided on both sides of the upper surface of the rotating plate 2, and the second driving mechanism 6 includes a second driving motor 601, which is installed on one end surface of the rotating plate 2 and located on one side of the mounting groove 201, and a bidirectional screw rod 602 is installed at the output end of the second driving motor 601, and one end of the bidirectional screw rod 602 is rotatably set on the inner wall of one end of the mounting groove 201, and screw rod sleeves 603 are movably installed on the rod body of both sides of the bidirectional screw rod 602, and a connecting plate 604 is installed on the top of each screw rod sleeve 603, and one end of each connecting plate 604 is fixedly connected to one side of the arc-shaped clamping plate 4 at the corresponding position.

[0026] Through the meshing transmission between the bidirectional screw 602 and the screw sleeve 603, under the drive of the second drive motor 601, the connecting plate 604 can be controlled to move, and then the arc-shaped clamping plate 4 can be driven to move, so as to clamp and fix the filter, so that the filter will not be displaced during the process of taking and placing the filter element, and the filter element can be replaced more conveniently.

[0027] The working principle of the chromatographic filter element replacement device:

[0028] When the filter element needs to be replaced, the filter is placed inside the circular groove 7, and the bidirectional screw rod 602 is driven to rotate by the second driving motor 601. Under the meshing action between the bidirectional screw rod 602 and the screw rod sleeve 603, the connecting plate 604 can drive the arc-shaped clamping plate 4 to move, so that the position of the filter can be fixed, so that the position of the filter element will not shake during the replacement process, which is more conducive to the replacement of the filter element. When the arc-shaped clamping plate 4 clamps the filter, the protective pad 5 can protect the surface of the filter and effectively reduce damage. The first driving motor 302 drives the first mounting rod 303 to rotate, and under the meshing action between the driving gear 304 and the driven gear 306, the second mounting rod 305 can be driven to rotate, thereby driving the rotating column 307 to rotate, so that the entire rotating plate 2 is rotated, the position of the filter can be adjusted, and it is more convenient to replace the filter element.

[0029] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A chromatographic filter cartridge replacement device, comprising a workbench (1), characterized in that: A rotating plate (2) is movably mounted on the upper surface of the workbench (1); a first driving mechanism (3) for controlling the rotation of the rotating plate (2) is disposed at the bottom of the workbench (1); a circular groove (7) is provided on the upper surface of the rotating plate (2); arc-shaped clamping plates (4) are movably mounted on both sides of the inner part of the circular groove (7); a protective pad (5) is provided on one side surface of each arc-shaped clamping plate (4); a second driving mechanism (6) for controlling the movement of the arc-shaped clamping plate (4) is disposed on one side of the rotating plate (2); the first driving mechanism (3) comprises a mounting frame (301); the mounting frame (301) is fixedly mounted on the lower surface of the workbench (1); the bottom of the mounting frame (301) is A first driving motor (302) is installed on one side of the rotating plate (2), a first mounting rod (303) is installed on the output end of the first driving motor (302), mounting grooves (201) are provided on both sides of the upper surface of the rotating plate (2), the second driving mechanism (6) comprises a second driving motor (601), the second driving motor (601) is installed on one end surface of the rotating plate (2) and is located on one side of the mounting groove (201), a bidirectional screw rod (602) is installed on the output end of the second driving motor (601), one end of the bidirectional screw rod (602) is rotatably arranged on the inner wall of one end of the mounting groove (201), and screw rod sleeves (603) are movably installed on the rod bodies on both sides of the bidirectional screw rod (602).

2. A chromatographic filter element replacement device according to claim 1, characterized in that: One end of the first mounting rod (303) is rotatably mounted on one side of the lower surface of the workbench (1); a driving gear (304) is fixedly mounted on the rod body of the first mounting rod (303); and a second mounting rod (305) is rotatably mounted on one side of the interior of the mounting frame (301).

3. A chromatographic filter element replacement device according to claim 2, characterized in that: A driven gear (306) is fixedly mounted on the rod body of the second mounting rod (305), the driven gear (306) and the driving gear (304) are meshed with each other, and a rotating column (307) is mounted on the top of the second mounting rod (305).

4. A chromatographic filter element replacement device according to claim 3, characterized in that: One end of the rotating column (307) passes through the workbench (1) and is fixedly connected to the bottom center of the rotating plate (2); a rotating limit block (3071) is arranged on the rod body of the rotating column (307); and a rotating limit groove (101) cooperating with the rotating limit block (3071) is arranged inside the workbench (1).

5. The chromatographic filter element replacement device according to claim 1, characterized in that: A connecting plate (604) is installed on the top of each screw rod sleeve (603), and one end of each connecting plate (604) is fixedly connected to one side of the arc-shaped clamping plate (4) at a corresponding position.

Images