A detachable cleanable liquid chromatography column

Abstract

The utility model discloses a detachable cleaning's liquid chromatography column in the field of liquid chromatography column, including the column body, the column cap, dismounting mechanism and locking mechanism, the column cap is connected in the both ends of the column body through the dismounting mechanism, the locking mechanism is connected in the outside of the dismounting mechanism, the inboard wall both ends fixed of the column body have the boss, the boss outside one side is connected with the filter plate, the dismounting mechanism includes the connecting ring fixed in the column body inboard wall symmetry, this detachable cleaning's liquid chromatography column, rotates the column cap to make the arc surface of the insertion slot extrude the arc surface of the plug, makes the plug move out the inside of the insertion slot, turns the column cap ninety degrees, drives L type clamp plate to rotate ninety degrees, makes L type clamp plate and L type clamping plate alignment, pulls the column cap to take out the filter plate, is convenient for to the dismounting of column cap and filter plate, avoids using the specific tool and dismounting, promotes the convenience of dismounting, saves time and labour, is convenient for cleaning.

Description

Technical Field

[0001] This utility model relates to the field of liquid chromatography column technology, specifically to a removable and cleanable liquid chromatography column. Background Technology

[0002] Liquid chromatography is a widely used technique for effectively separating mixtures of multiple components. Its principle is based on the fact that the components of a mixture have different partition coefficients in the phases. When the two phases move relative to each other, these substances undergo repeated partitioning in the two phases to achieve separation. The key to liquid chromatography is the liquid chromatography column.

[0003] Chinese patent publication number CN222765721 U discloses a detachable liquid chromatography column, including a column tube and column caps. The number of column caps is two, and they are respectively threaded to both ends of the column tube. An integrally formed boss is installed on the inner wall of the column tube. A filter plate body is provided on the top of the boss. An annular pressure sleeve is fixedly connected to the inner wall of the column cap. A square groove is symmetrically opened on the top of the filter plate body. Support grooves communicating with the filter plate body are symmetrically opened on both sides of the inner wall of the square groove. This detachable liquid chromatography column features a reasonable structural design and is easy to use. It allows for quick assembly and disassembly of each component without the need for tools, improving user convenience. Furthermore, it boasts strong overall structural strength, excellent sealing during installation, and is resistant to deformation under pressure. The internal packing material is also less prone to leakage, resulting in a long service life and fully meeting usage requirements. As mentioned in the aforementioned patent, assembling the components of a liquid chromatography column is inconvenient, time-consuming, and labor-intensive. Disassembly requires tools, reducing efficiency and hindering cleaning. Therefore, we propose a detachable and cleanable liquid chromatography column. Utility Model Content

[0004] The purpose of this utility model is to provide a detachable and cleanable liquid chromatography column to solve the problems mentioned in the background art, as known from the above patents, that the various components of a liquid chromatography column are inconvenient, time-consuming and labor-intensive to assemble, and require tools to disassemble, reducing disassembly and assembly efficiency and making cleaning difficult.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a detachable and cleanable liquid chromatography column, comprising a column body, a column cap, a disassembly and assembly mechanism, and a locking mechanism. The column cap is connected to both ends of the column body via the disassembly and assembly mechanism. The locking mechanism is connected to the outside of the disassembly and assembly mechanism. Bosses are fixed at both ends of the inner sidewall of the column body. A filter plate is connected to one side of the outer side of each boss. The disassembly and assembly mechanism includes connecting rings symmetrically fixed to the outer sidewall of the column body. Rotation grooves are symmetrically formed on the inner sidewall of the connecting rings. Mounting boxes are symmetrically fixed to the outer sidewall of the connecting rings. A return spring is fixed to the middle of one side of the inner cavity of the mounting box. A connecting plate is fixed to one end of the return spring. An insert block is fixed to the middle of one side of the connecting plate. Connecting blocks are symmetrically fixed to the bottom of the column cap. A slot is formed in the middle of one side of the connecting block. L-shaped pressure plates are symmetrically fixed to the top inner side of the column cap. L-shaped clamping plates are symmetrically fixed to the top of the filter plate.

[0006] As a further description of the above technical solution:

[0007] The top of the inner cavity of the column cap and the outer wall of the filter plate are both provided with sealing gaskets, one end of the insert block is provided with an arc surface, and the slot is an arc groove.

[0008] As a further description of the above technical solution:

[0009] The insert penetrates the sidewalls of the mounting box and the connecting ring, and the insert is slidably connected to the mounting box and the connecting ring.

[0010] As a further description of the above technical solution:

[0011] The connecting plate is slidably connected to the inside of the mounting box, and the outer side wall of the connecting plate is in contact with the inner side wall of the mounting box.

[0012] As a further description of the above technical solution:

[0013] The locking mechanism includes symmetrically arranged insertion holes on the top of one of the connecting plates, a mounting bracket fixed to the top edge of one of the mounting boxes, a trapezoidal lead screw rotating through the top center of the mounting bracket, a knob fixed to the top of the trapezoidal lead screw, a movable plate connected to the outer side of the trapezoidal lead screw, and insertion rods symmetrically fixed to the bottom of the movable plate.

[0014] As a further description of the above technical solution:

[0015] The locking mechanism also includes limiting grooves extending through both sides of the mounting bracket, and limiting blocks are fixed at the middle of both sides of the movable plate.

[0016] As a further description of the above technical solution:

[0017] The limiting block slides inside the limiting groove, and the outer side wall of the limiting block is in contact with the inner side wall of the limiting groove. The outer side of the knob is provided with anti-slip texture.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This removable and cleanable liquid chromatography column allows for easy disassembly and cleaning. The locking mechanism releases the connecting plate, and then the column cap is rotated, causing the connecting block to rotate. This causes the arc surface of the slot to press against the arc surface of the insert block, moving the insert block out of the slot. Rotating the column cap 90 degrees rotates the L-shaped pressure plate 90 degrees, aligning it with the L-shaped clamping plate. Pulling the column cap then removes the filter plate, facilitating the disassembly of the column cap and filter plate. This eliminates the need for specific tools, improving disassembly convenience, saving time and effort, and making cleaning easier.

[0020] 2. After the column cap is connected, the removable and cleanable liquid chromatography column can be rotated by turning the knob, which drives the trapezoidal screw to rotate. The cooperation of the limiting block and the limiting groove drives the moving plate to descend, causing the insertion rod to descend and move into the insertion hole. This limits the connection plate and prevents it from moving, thereby locking the disassembly and assembly mechanism, preventing the column cap connection from loosening, and improving the stability of the installation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a detachable and cleanable liquid chromatography column proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the boss mounting structure of a detachable and cleanable liquid chromatography column proposed in this utility model.

[0023] Figure 3 This is a schematic diagram of the reset spring installation structure of a detachable and cleanable liquid chromatography column proposed in this utility model.

[0024] Figure 4 This is a schematic diagram of the L-shaped pressure plate structure of a detachable and cleanable liquid chromatography column proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the locking mechanism of a detachable and cleanable liquid chromatography column proposed in this utility model.

[0026] In the diagram: 100, column; 110, boss; 120, filter plate; 200, column cap; 300, disassembly and assembly mechanism; 310, connecting ring; 320, rotating groove; 330, mounting box; 340, return spring; 350, connecting plate; 360, insert block; 370, connecting block; 371, slot; 380, L-shaped pressure plate; 390, L-shaped clamping plate; 400, locking mechanism; 410, insertion hole; 420, mounting bracket; 430, trapezoidal lead screw; 440, knob; 450, moving plate; 460, insertion rod; 470, limit groove; 480, limit block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] This invention provides a detachable and cleanable liquid chromatography column, facilitating the removal of the column cap and filter plates without requiring specific tools, thus improving disassembly convenience, saving time and effort, and simplifying cleaning. Please refer to [link / reference]. Figure 1-5 It includes a column body 100, a column cap 200, a disassembly and assembly mechanism 300, and a locking mechanism 400;

[0031] Please refer to it again. Figure 1 The column 100 is used to install the column cap 200, the disassembly and assembly mechanism 300, and the locking mechanism 400;

[0032] Please refer to it again. Figure 1 The column cap 200 is connected to both ends of the column body 100 through the disassembly and assembly mechanism 300, and the locking mechanism 400 is connected to the outside of the disassembly and assembly mechanism 300. The inner sidewall of the column body 100 is fixed with bosses 110 at both ends, and a filter plate 120 is connected to one side of the outer side of the bosses 110.

[0033] Please refer to it again. Figure 3 The disassembly and assembly mechanism 300 includes a connecting ring 310 symmetrically fixed to the outer side wall of the column 100. The inner side wall of the connecting ring 310 is symmetrically provided with a rotating groove 320. The outer side wall of the connecting ring 310 is symmetrically fixed with an installation box 330. A return spring 340 is fixed in the middle of one side of the inner cavity of the installation box 330.

[0034] Please refer to it again. Figure 3 One end of the return spring 340 is fixed with a connecting plate 350, and a plug 360 is fixed in the middle of one side of the connecting plate 350.

[0035] Please refer to it again. Figure 2 and Figure 4 The bottom of the column cap 200 is symmetrically fixed with connecting blocks 370, and a slot 371 is opened in the middle of one side of the connecting block 370. Please refer to the previous section. Figure 1 An L-shaped pressure plate 380 is symmetrically fixed to the top of the inner side of the column cap 200, and an L-shaped clamping plate 390 is symmetrically fixed to the top of the filter plate 120.

[0036] In summary, during disassembly and cleaning, the locking mechanism 400 releases the fixing of the connecting plate 350. Then, the column cap 200 is rotated, causing the connecting block 370 to rotate. This causes the arc surface of the slot 371 to press against the arc surface of the insert block 360, moving the insert block 360 out of the slot 371. The column cap 200 is then rotated 90 degrees, causing the L-shaped pressure plate 380 to rotate 90 degrees, aligning the L-shaped pressure plate 380 with the L-shaped clamping plate 390. Pulling the column cap 200 then pulls out the filter plate 120, facilitating the disassembly of the column cap 200 and the filter plate 120. This avoids the need for specific tools, improving the convenience of disassembly, saving time and effort, and making cleaning easier.

[0037] Please refer to it again. Figure 2 The top of the inner cavity of the column cap 200 and the outer wall of the filter plate 120 are both provided with sealing gaskets, one end of the insert block 360 is provided with an arc surface, and the slot 371 is an arc groove.

[0038] Please refer to it again. Figure 3 The insert 360 penetrates the side wall of the mounting box 330 and the connecting ring 310, and the insert 360 is slidably connected to the mounting box 330 and the connecting ring 310.

[0039] Please refer to it again. Figure 3 The connecting plate 350 is slidably connected to the inside of the mounting box 330, and the outer side wall of the connecting plate 350 is in contact with the inner side wall of the mounting box 330.

[0040] Please refer to it again. Figure 2 and Figure 5 The locking mechanism 400 includes symmetrically arranged insertion holes 410 on the top of a connecting plate 350, a mounting bracket 420 fixed to the top edge of a mounting box 330, a trapezoidal lead screw 430 rotating through the top center of the mounting bracket 420, a knob 440 fixed to the top of the trapezoidal lead screw 430, a movable plate 450 connected to the outside of the trapezoidal lead screw 430, and insertion rods 460 symmetrically fixed to the bottom of the movable plate 450.

[0041] Please refer to it again. Figure 5 The locking mechanism 400 also includes a limiting groove 470 extending through both sides of the mounting bracket 420, and a limiting block 480 fixed in the middle of both sides of the movable plate 450.

[0042] Please refer to it again. Figure 5 The limiting block 480 slides inside the limiting groove 470, and the outer side wall of the limiting block 480 fits against the inner side wall of the limiting groove 470. The outer side of the knob 440 is provided with anti-slip texture.

[0043] In summary, after the column cap 200 is connected, rotating the knob 440 drives the trapezoidal screw 430 to rotate. The cooperation of the limiting block 480 and the limiting groove 470 causes the moving plate 450 to descend, causing the insertion rod 460 to descend and move into the insertion hole 410. This limits the connection plate 350, preventing it from moving and thus locking the disassembly and assembly mechanism 300, preventing the column cap 200 from loosening and improving installation stability.

[0044] In practical use, when installing, those skilled in the art first align and engage the L-shaped pressure plate 380 and the L-shaped clamping plate 390, then place the connecting block 370 on the edge of the rotating groove 320. At this time, the filter plate 120 is located in the column 100, so that the filter plate 120 is located on the boss 110, and the L-shaped pressure plate 380 presses the filter plate 120 tightly. Rotate the column cap 200 ninety degrees to misalign the L-shaped pressure plate 380 and the L-shaped clamping plate 390. At the same time, the connecting block 370 presses the insert block 360, causing the insert block 360 to move and press the return spring 340. When the insert block 360 is aligned with the slot 371, the return spring 340 resets the insert block 360 into the slot 371, completing the installation. Then, rotate the knob 440 to drive the trapezoidal screw 430 to rotate. Utilizing the cooperation of the limiting block 480 and the limiting groove 470, the moving plate 4... The knob 440 is lowered, causing the insert rod 460 to move into the insertion hole 410, limiting the connection plate 350 and preventing it from moving, thereby locking the disassembly and assembly mechanism 300. When disassembly and cleaning are required, the knob 440 is reversed, causing the moving plate 450 to drive the insert rod 460 upward, moving the insert rod 460 out of the insertion hole 410 and releasing the fixation of the connection plate 350. Then, the column cap 200 is rotated, causing the connecting block 370 to rotate, thereby causing the arc surface of the slot 371 to press against the arc surface of the insert block 360, causing the insert block 360 to move out of the slot 371. The column cap 200 is rotated 90 degrees, causing the L-shaped pressure plate 380 to rotate 90 degrees, aligning the L-shaped pressure plate 380 with the L-shaped clamping plate 390. The column cap 200 is pulled, thereby pulling out the filter plate 120, making it easy to disassemble the column cap 200 and the filter plate 120 for cleaning.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A removable and cleanable liquid chromatography column, characterized in that: The device includes a column (100), a column cap (200), a disassembly / assembly mechanism (300), and a locking mechanism (400). The column cap (200) is connected to both ends of the column (100) via the disassembly / assembly mechanism (300). The locking mechanism (400) is connected to the outside of the disassembly / assembly mechanism (300). Bosses (110) are fixed to both ends of the inner wall of the column (100). A filter plate (120) is connected to one side of the outer side of each boss (110). The disassembly / assembly mechanism (300) includes connecting rings (310) symmetrically fixed to the outer wall of the column (100). Rotating grooves (32) are symmetrically formed on the inner wall of the connecting rings (310). 0), the outer side wall of the connecting ring (310) is symmetrically fixed with an installation box (330), the inner cavity of the installation box (330) is fixed with a return spring (340) in the middle of one side, one end of the return spring (340) is fixed with a connecting plate (350), the middle of one side of the connecting plate (350) is fixed with an insert block (360), the bottom of the column cap (200) is symmetrically fixed with a connecting block (370), the middle of one side of the connecting block (370) is provided with a slot (371), the top of the inner side of the column cap (200) is symmetrically fixed with an L-shaped pressure plate (380), and the top of the filter plate (120) is symmetrically fixed with an L-shaped clamping plate (390).

2. The removable and cleanable liquid chromatography column according to claim 1, characterized in that: The top of the inner cavity of the column cap (200) and the outer wall of the filter plate (120) are both provided with sealing gaskets, one end of the insert (360) is provided with an arc surface, and the slot (371) is an arc groove.

3. The removable and cleanable liquid chromatography column according to claim 1, characterized in that: The insert (360) penetrates the sidewalls of the mounting box (330) and the connecting ring (310), and the insert (360) is slidably connected to the mounting box (330) and the connecting ring (310).

4. The removable and cleanable liquid chromatography column according to claim 1, characterized in that: The connecting plate (350) is slidably connected to the inside of the mounting box (330), and the outer side wall of the connecting plate (350) is in contact with the inner side wall of the mounting box (330).

5. The removable and cleanable liquid chromatography column according to claim 1, characterized in that: The locking mechanism (400) includes symmetrically arranged insertion holes (410) on the top of a connecting plate (350), a mounting bracket (420) fixed to the top edge of a mounting box (330), a trapezoidal lead screw (430) rotating through the top center of the mounting bracket (420), a knob (440) fixed to the top of the trapezoidal lead screw (430), a movable plate (450) connected to the outside of the trapezoidal lead screw (430), and insertion rods (460) symmetrically fixed to the bottom of the movable plate (450).

6. A removable and cleanable liquid chromatography column according to claim 5, characterized in that: The locking mechanism (400) also includes a limiting groove (470) extending through both sides of the mounting bracket (420), and a limiting block (480) is fixed at the middle of both sides of the movable plate (450).

7. A removable and cleanable liquid chromatography column according to claim 6, characterized in that: The limiting block (480) slides inside the limiting groove (470), and the outer side wall of the limiting block (480) is in contact with the inner side wall of the limiting groove (470). The outer side of the knob (440) is provided with anti-slip texture.

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