Chromatographic column for chromatographic analysis
By designing positioning devices on the column, including rectangular blocks, threaded cylinders and screws, to fix the position of the column in the storage box, the damage caused by collision during storage is solved, ensuring its normal use.
Patent Information
- Application Number
- CN202420903184.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-28
AI Technical Summary
When chromatographic columns are stored, scratches and damage are easily caused by collision, which affects their normal use.
A positioning device including rectangular blocks, threaded cylinders, screws, circular blocks and L-shaped rods is designed. Through the cooperation of these components, the chromatographic column can be fixed in a stable position in the storage box to avoid opening or closing of the storage box. shaking caused by collision.
It effectively prevents scratches and damage caused by collision during storage of the column surface, ensuring the normal use of the column.
Smart Images
Figure CN222137401U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chromatographic columns, in particular to a chromatographic column for chromatographic analysis. Background Art
[0002] Chromatography is a means of separation and analysis. The chromatographic column is responsible for the separation. The chromatographic column is composed of a column tube, a pressure cap, a ferrule, a sieve plate, a joint, screws, etc. The separation effect of the chromatographic column depends on the selected stationary phase, as well as the preparation and operating conditions of the chromatographic column.
[0003] A chromatographic column is usually a high-sensitivity, high-resolution analytical tool that requires temperature, humidity and environmental control to maintain its performance. When storing a chromatographic column, the entire column is placed in a special storage box. However, if the chromatographic columns collide when opening or closing the box, it will cause scratches and damage to the surface of the column, affecting the normal use of the chromatographic column. Utility Model Content
[0004] The utility model aims to solve the problem that a chromatographic column is usually a high-sensitivity, high-resolution analysis tool that requires temperature, humidity and environmental control to maintain its performance. When storing the chromatographic column, the chromatographic column is placed as a whole in a special storage box. However, when the storage box is opened or closed, collision between the chromatographic columns may cause scratches and damage on the surface of the chromatographic column, affecting the normal use of the chromatographic column. A chromatographic column for chromatographic analysis is proposed to solve the problem that
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a chromatographic column for chromatographic analysis, comprising a column sleeve, the outer surface of the column sleeve is provided with a positioning device with the aid of an auxiliary device, the positioning device comprises a rectangular block, the top end of the rectangular block is rotatably connected to a threaded barrel, the inner wall of the threaded barrel is threadedly connected to a screw, the end of the screw away from the threaded barrel is fixedly connected to a round block, the bottom end of the screw is fixedly connected to an L-shaped rod, and the outer surface of the L-shaped rod slides on the inner wall of the rectangular block.
[0006] The effect achieved by the above components is: by setting the round block, when the chromatographic column is placed in the storage box for storage, the positioning device can be installed on the outer surface of the column sleeve with the help of an auxiliary device, and then the chromatographic column is placed in the storage box, and the threaded barrel is pushed to rotate the threaded barrel on the top of the rectangular block. At the same time, the L-shaped rod will slide on the inner wall of the rectangular block, so that the screw moves outward on the inner wall of the threaded barrel to press the round block at one end of the screw against the inner wall of the storage box, thereby fixing the position of the chromatographic column inside the storage box, and avoiding as much as possible the damage of the column sleeve surface when the storage box is opened or closed to cause the storage box to shake, affecting the normal use of the chromatographic column.
[0007] Preferably, a plurality of rectangular strips are fixedly connected to one side of the round block, and the rectangular strips are rubber strips made of rubber material.
[0008] The effect achieved by the above components is that when the side of the round block provided with the rubber rectangular strip is pressed against the inner wall of the storage box, it is more stable and not easy to slide.
[0009] Preferably, one end of the threaded barrel is fixedly connected to a circular ring, and the outer surface of the circular ring is provided with a plurality of protrusions.
[0010] The effect achieved by the above-mentioned components is that the position of the screw rod can be more conveniently controlled by pressing the protrusion on the outer surface of the ring with the hand to rotate the threaded barrel.
[0011] Preferably, a positioning ring is fixedly connected to the top end of the rectangular block, and the outer surface of the screw slides on the inner wall of the positioning ring.
[0012] The effect achieved by the above components is that when the threaded barrel is rotated to move the screw, the outer surface of the screw will slide on the inner wall of the positioning ring, further limiting the angle between the screw and the threaded barrel and increasing the stability of the screw when moving.
[0013] Preferably, a rectangular sheet is fixedly connected to one side of the rectangular block, and the outer surface of the threaded cylinder rotates on the inner wall of the rectangular sheet.
[0014] The effect achieved by the above components is: when the threaded barrel is pushed to rotate, a section of the threaded barrel away from the rectangular block will rotate on the inner wall of the rectangular sheet. The rectangular sheet can further limit the angle between the threaded barrel and the rectangular block, thereby avoiding as much as possible the deviation of the angle of the threaded barrel when the threaded barrel is rotated, which affects normal use.
[0015] Preferably, the auxiliary device includes a U-shaped block, the top of the U-shaped block is fixedly connected to the bottom end of the rectangular block, one side of the U-shaped block is fixedly connected to a clamping block, one side of the inner wall of the U-shaped block is threadedly connected to a bolt, one end of the bolt is rotatably connected to a fan-shaped piece, the bottom end of the fan-shaped piece is fixedly connected to a rectangular plate, and the top of the rectangular plate slides on one side of the U-shaped block.
[0016] The effects achieved by the above components are: the clamping block on the outer surface of the U-shaped block is clamped on the outer surface of the column sleeve and one side of the U-shaped block is attached to one side of the column sleeve; the bolt is rotated to make the rectangular plate slide on one side of the U-shaped block to press one side of the fan-shaped piece against the outer surface of the column sleeve so that the U-shaped block and the positioning device can be fixed on the outer surface of the column sleeve; the bolt is rotated to make the fan-shaped piece away from the outer surface of the column sleeve so that the positioning device can be removed.
[0017] Preferably, a plurality of protrusions are fixedly connected to one side of the outer surface of the bolt, and the protrusions are distributed in a circle on one side of the outer surface of the bolt.
[0018] The effect achieved by the above components is that the bolt can be turned more conveniently by holding the protrusion on the outer surface of the bolt to control the movement of the sector piece.
[0019] Preferably, a slot block is fixedly connected to one side of the rectangular block, and two grooves are formed on the outer surface of the slot block.
[0020] The effect achieved by the above components is that the rectangular block and the U-shaped block can be more conveniently controlled by pinching the two grooves on the outer surface of the slot block to clamp the U-shaped block on the outer surface of the column sleeve or remove it from the outer surface of the column sleeve.
[0021] Compared with the prior art, the advantages and positive effects of the utility model are:
[0022] In the utility model, by providing a positioning device, when the chromatographic column is placed in a storage box for storage, the positioning device can be installed on the outer surface of the column sleeve with the help of an auxiliary device, and the threaded barrel is rotated to make the screw move outward on the inner wall of the threaded barrel so that the round block at one end of the screw is pressed against the inner wall of the storage box, thereby fixing the position of the chromatographic column inside the storage box, and avoiding as much as possible that the surface of the column sleeve is damaged when the storage box is opened or closed and the storage box is shaken, which affects the normal use of the chromatographic column. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0024] Figure 2 It is a three-dimensional structural schematic diagram of the threaded barrel of the utility model;
[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the U-shaped block of the utility model;
[0026] Figure 4 It is a three-dimensional structural schematic diagram of the screw rod of the utility model.
[0027] Legend: 1. Column sleeve; 2. Positioning device; 3. Auxiliary device; 21. Rectangular block; 22. Threaded barrel; 23. Screw; 24. L-shaped rod; 25. Round block; 26. Rectangular strip; 27. Positioning ring; 28. Rectangular sheet; 29. Circular ring; 31. U-shaped block; 32. Block; 33. Bolt; 34. Fan-shaped sheet; 35. Rectangular plate; 36. Bump; 37. Slot block. DETAILED DESCRIPTION
[0028] Embodiment 1, as Figure 1-4As shown, a chromatographic column for chromatographic analysis comprises a column sleeve 1, the outer surface of the column sleeve 1 is provided with a positioning device 2 by means of an auxiliary device 3, the positioning device 2 comprises a rectangular block 21, the top of the rectangular block 21 is rotatably connected with a threaded barrel 22, the inner wall of the threaded barrel 22 is threadedly connected with a screw 23, the end of the screw 23 away from the threaded barrel 22 is fixedly connected with a round block 25, the bottom end of the screw 23 is fixedly connected with an L-shaped rod 24, the outer surface of the L-shaped rod 24 slides on the inner wall of the rectangular block 21, and by providing the round block 25, when the chromatographic column is placed in a storage box for storage, With the help of the auxiliary device 3, the positioning device 2 is installed on the outer surface of the column sleeve 1, and then the chromatographic column is placed in the storage box, and the threaded barrel 22 is pushed to rotate the threaded barrel 22 at the top of the rectangular block 21. At the same time, the L-shaped rod 24 slides on the inner wall of the rectangular block 21, so that the screw 23 moves outward on the inner wall of the threaded barrel 22 to make the round block 25 at one end of the screw 23 press against the inner wall of the storage box, and fix the position of the chromatographic column inside the storage box, and avoid as much as possible that the surface of the column sleeve 1 is damaged when the storage box is opened or closed and the storage box is shaken, which affects the normal use of the chromatographic column.
[0029] Reference Figure 1-4 As shown, in this embodiment: one side of the round block 25 is fixedly connected with a plurality of rectangular strips 26, and the rectangular strips 26 are made of rubber material. When the side of the round block 25 provided with the rubber rectangular strips 26 is pressed against the inner wall of the storage box, it is more stable and not easy to slide. One end of the threaded barrel 22 is fixedly connected with a circular ring 29, and the outer surface of the circular ring 29 is provided with a plurality of protrusions. By pressing the protrusions on the outer surface of the circular ring 29 with your hand, you can more conveniently control the rotation of the threaded barrel 22 to adjust the position of the screw 23.
[0030] Reference Figure 1-4 As shown, in this embodiment: a positioning ring 27 is fixedly connected to the top of the rectangular block 21, and the outer surface of the screw 23 slides on the inner wall of the positioning ring 27. When the threaded barrel 22 is rotated to move the screw 23, the outer surface of the screw 23 will slide on the inner wall of the positioning ring 27, further limiting the angle between the screw 23 and the threaded barrel 22, thereby increasing the stability of the screw 23 when moving. A rectangular sheet 28 is fixedly connected to one side of the rectangular block 21, and the outer surface of the threaded barrel 22 rotates on the inner wall of the rectangular sheet 28. When the threaded barrel 22 is pushed to rotate, a section of the threaded barrel 22 away from the rectangular block 21 will rotate on the inner wall of the rectangular sheet 28. The rectangular sheet 28 can further limit the angle between the threaded barrel 22 and the rectangular block 21, thereby avoiding as much as possible the deviation of the angle of the threaded barrel 22 when the threaded barrel 22 is rotated, thereby affecting normal use.
[0031] Reference Figure 1-3As shown, in this embodiment: the auxiliary device 3 includes a U-shaped block 31, the top of the U-shaped block 31 is fixedly connected to the bottom end of the rectangular block 21, one side of the U-shaped block 31 is fixedly connected with a clamping block 32, one side of the inner wall of the U-shaped block 31 is threadedly connected with a bolt 33, one end of the bolt 33 is rotatably connected with a fan-shaped piece 34, the bottom end of the fan-shaped piece 34 is fixedly connected with a rectangular plate 35, the top of the rectangular plate 35 slides on one side of the U-shaped block 31, the clamping block 32 on the outer surface of the U-shaped block 31 is clamped on the outer surface of the column sleeve 1 and one side of the U-shaped block 31 is attached to one side of the column sleeve 1, the bolt 33 is rotated to make the rectangular plate 35 slide on one side of the U-shaped block 31 to press one side of the fan-shaped piece 34 on the outer surface of the column sleeve 1, the U-shaped block 31 and the positioning device 2 can be fixed on the outer surface of the column sleeve 1, and the bolt 33 is rotated to make the fan-shaped piece 34 away from the outer surface of the column sleeve 1, so that the positioning device 2 can be disassembled.
[0032] Reference Figure 1-3 As shown, in this embodiment: a plurality of protrusions 36 are fixedly connected to one side of the outer surface of the bolt 33, and the protrusions 36 are distributed in a circle on one side of the outer surface of the bolt 33. By holding the protrusions 36 on the outer surface of the bolt 33, it is more convenient to rotate the bolt 33 to control the movement of the sector piece 34. A groove block 37 is fixedly connected to one side of the rectangular block 21, and two grooves are provided on the outer surface of the groove block 37. By pinching the two grooves on the outer surface of the groove block 37, it is more convenient to control the rectangular block 21 and the U-shaped block 31 to clamp the U-shaped block 31 on the outer surface of the column sleeve 1 or remove it from the outer surface of the column sleeve 1.
[0033] Working principle: When placing the chromatographic column in the storage box for storage, you can first pinch the groove on the outer surface of the slot block 37 to control the rectangular block 21 and the U-shaped block 31, clamp the clamping block 32 on the outer surface of the U-shaped block 31 on the outer surface of the column sleeve 1 and make one side of the U-shaped block 31 stick to one side of the column sleeve 1, hold the convex block 36 and turn the bolt 33 to make the rectangular plate 35 slide on one side of the U-shaped block 31, press one side of the fan-shaped piece 34 against the outer surface of the column sleeve 1, and fix the U-shaped block 31 and the positioning device 2. On the outer surface of the column sleeve 1, the column sleeve 1 is then placed flat inside the storage box, and the hand is pressed against the protrusion on the outer surface of the ring 29 to control the threaded tube 22 to rotate at the top of the rectangular block 21 and the inner wall of the rectangular sheet 28. At the same time, the L-shaped rod 24 will slide on the inner wall of the rectangular block 21, so that the screw 23 moves outward on the inner wall of the threaded tube 22, and the round block 25 at one end of the screw 23 is provided with a side of the rubber rectangular strip 26 against the inner wall of the storage box to fix the position of the column sleeve 1 inside the storage box.
[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.
Claims
1. A chromatographic column for chromatographic analysis, comprising a column sleeve (1), characterized in that: The outer surface of the column sleeve (1) is provided with a positioning device (2) with the aid of an auxiliary device (3), the positioning device (2) comprising a rectangular block (21), the top end of the rectangular block (21) being rotatably connected to a threaded barrel (22), the inner wall of the threaded barrel (22) being threadedly connected to a screw rod (23), one end of the screw rod (23) away from the threaded barrel (22) being fixedly connected to a round block (25), the bottom end of the screw rod (23) being fixedly connected to an L-shaped rod (24), the outer surface of the L-shaped rod (24) sliding on the inner wall of the rectangular block (21).
2. A chromatographic column for chromatographic analysis according to claim 1, characterized in that: A plurality of rectangular strips (26) are fixedly connected to one side of the round block (25), and the rectangular strips (26) are rubber strips made of rubber material.
3. A chromatographic column for chromatographic analysis according to claim 2, characterized in that: One end of the threaded barrel (22) is fixedly connected to a circular ring (29), and the outer surface of the circular ring (29) is provided with a plurality of protrusions.
4. A chromatographic column for chromatographic analysis according to claim 3, characterized in that: A positioning ring (27) is fixedly connected to the top end of the rectangular block (21), and the outer surface of the screw rod (23) slides on the inner wall of the positioning ring (27).
5. A chromatographic column for chromatographic analysis according to claim 4, characterized in that: A rectangular sheet (28) is fixedly connected to one side of the rectangular block (21), and the outer surface of the threaded cylinder (22) rotates on the inner wall of the rectangular sheet (28).
6. A chromatographic column for chromatographic analysis according to claim 5, characterized in that: The auxiliary device (3) comprises a U-shaped block (31), the top end of the U-shaped block (31) is fixedly connected to the bottom end of the rectangular block (21), a clamping block (32) is fixedly connected to one side of the U-shaped block (31), a bolt (33) is threadedly connected to one side of the inner wall of the U-shaped block (31), one end of the bolt (33) is rotatably connected to a fan-shaped piece (34), the bottom end of the fan-shaped piece (34) is fixedly connected to a rectangular plate (35), and the top end of the rectangular plate (35) slides on one side of the U-shaped block (31).
7. A chromatographic column for chromatograph analysis according to claim 6, characterized in that: A plurality of protrusions (36) are fixedly connected to one side of the outer surface of the bolt (33), and the protrusions (36) are distributed in a circular pattern on one side of the outer surface of the bolt (33).
8. A chromatographic column for chromatograph analysis according to claim 7, characterized in that: A slot block (37) is fixedly connected to one side of the rectangular block (21), and two grooves are formed on the outer surface of the slot block (37).