Optimized structure of high performance liquid chromatograph for detecting traditional Chinese medicinal materials

By designing multiple sealing covers and independent feed ports on the liquid chromatograph, combined with a bevel gear and elastic rope system, the problem of temperature changes in the oven during installation and removal of the chromatographic column is solved, achieving temperature stability and convenient operation.

CN223413275UActive Publication Date: 2025-10-03BOZHOU YAOTONG TESTING CO LTD
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Patent Information

Application Number
CN202423217691.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-10-03
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

When disassembling or inspecting the chromatographic column of an existing liquid chromatograph, opening the oven cover will cause the temperature inside the oven to change dramatically, affecting the analysis task and the performance of the chromatographic column.

Method used

Multiple sealing covers and independent feed ports are designed, combined with a bevel gear and elastic rope system to achieve convenient installation and removal of the chromatographic column, reduce heat loss, and maintain a stable temperature in the oven.

Benefits of technology

Significantly reduces heat loss, maintains stable temperature inside the incubator, and improves operational efficiency and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field, in particular to an optimized structure of a high performance liquid chromatograph for detecting traditional Chinese medicinal materials. The utility model provides a high performance liquid chromatograph optimized structure for traditional Chinese medicinal material detection, including liquid chromatograph, mounting column, feed inlet, mounting ring, hinge, seal cover and sleeve, mounting column is installed inside liquid chromatograph, the top of liquid chromatograph is evenly provided with a plurality of feed inlet at interval, mounting column top is connected with mounting ring, hinge, seal cover and sleeve, mounting column top is connected with the mounting ring. Hinges are uniformly mounted at the top of the liquid chromatograph at intervals, a sealing cover is rotationally connected to the hinges, the sealing cover is attached to the feeding opening, and a plurality of sleeves are uniformly connected into the mounting column at intervals. Through the design of a plurality of sealing covers and independent feed ports, each chromatographic column can be independently mounted and dismounted, so that the loss of heat in the operation process is remarkably reduced, the stability of the temperature in the incubator is maintained, meanwhile, great convenience is brought to the use of a user, and the operation efficiency and convenience are improved.
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Description

Technical Field

[0001] The utility model relates to a field, and in particular to an optimized structure of a high performance liquid chromatograph for detecting traditional Chinese medicines. Background Art

[0002] Liquid chromatography is a commonly used analytical technique for separating, identifying, and quantifying chemical substances. It achieves this by utilizing the different partition coefficients of different chemical substances in liquid phases, separating them on a fixed packing material. It can be used to analyze a variety of samples, including organic compounds, biomolecules, pharmaceuticals, and food ingredients. It has a wide range of applications in medicine, biochemistry, environmental monitoring, and food safety. The main advantages of liquid chromatography include high resolution, high sensitivity, high selectivity, and high efficiency. A column oven is a laboratory device used in chromatographic analysis to control the temperature of the chromatographic column.

[0003] Existing chromatographic columns are typically installed in a column oven to ensure temperature stability during separations and accurate analytical results. However, installation, removal, or inspection of the column often requires opening the oven's cover. This rapidly exposes the constant temperature within the oven to outside air, causing drastic temperature fluctuations. This not only affects ongoing analyses but can also adversely affect column performance.

[0004] In view of the current problems, it is necessary to provide an optimized structure of a high performance liquid chromatography for Chinese medicinal material detection that is convenient for installing a chromatographic column. Utility Model Content

[0005] In order to overcome the disadvantage that heat loss occurs when the upper cover is opened, the utility model provides an optimized structure of a high performance liquid chromatograph for detecting Chinese medicinal materials.

[0006] The technical solution of the utility model is: an optimized structure of a high-performance liquid chromatograph for detecting traditional Chinese medicines, comprising a liquid chromatograph, a mounting column, a feed port, a mounting ring, a hinge, a sealing cover, a sleeve, a placement ring, a connecting rod and a chromatographic column, wherein a mounting column is installed inside the liquid chromatograph, a plurality of feed ports are evenly spaced on the top of the liquid chromatograph, a mounting ring is connected to the top of the mounting column, a hinge is evenly spaced on the top of the liquid chromatograph, a sealing cover is rotatably connected to the hinge, the sealing cover is fitted with the feed port, a plurality of sleeves are evenly spaced inside the mounting column, a placement ring is threadedly connected to the sleeve, a connecting rod is connected to the bottom of the placement ring, and a chromatographic column is placed in the placement ring.

[0007] As an optimal technical solution of the present utility model, it also includes a rotating shaft, a first bevel gear, a mounting seat, a second bevel gear, a third bevel gear and an elastic rope. The outer wall of the liquid chromatograph is rotatably connected with multiple rotating shafts at even intervals, the outer end of the rotating shaft is installed with a first bevel gear, and the bottom of the liquid chromatograph is rotatably connected with multiple mounting seats at even intervals. The connecting rod slides with the mounting seat, the outer ring of the mounting seat is installed with a second bevel gear, the first bevel gear is meshed with the second bevel gear, the outer ring of the mounting column is rotatably connected with multiple third bevel gears at even intervals, the second bevel gear is meshed with the third bevel gear, and an elastic rope is wound around the third bevel gear, and the other end of the elastic rope is connected to the sealing cover at the corresponding position.

[0008] As a preferred technical solution of the present invention, a guide frame is also included. A plurality of guide frames are evenly spaced and connected to the top of the liquid chromatograph, and the guide frames are in contact with the elastic rope.

[0009] As a preferred technical solution of the utility model, a sealing strip is also included, and the outer ring of the sealing cover is equipped with a sealing strip.

[0010] As a preferred technical solution of the present invention, it also includes a knob, and the outer end of the rotating shaft is connected to the knob.

[0011] As a preferred technical solution of the present invention, the size of the sliding groove in the connecting rod matches the size of the protrusion in the mounting seat to form a precise sliding fit.

[0012] The beneficial effects of the present invention are as follows: 1. Through the design of multiple sealing covers and independent feed ports, each chromatographic column can be installed and disassembled separately, which significantly reduces the heat loss during operation and maintains the temperature stability in the incubator. At the same time, it greatly facilitates user use and improves operational efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2 It is a cross-sectional view of the liquid chromatograph of the present utility model.

[0015] Figure 3 It is a cross-sectional view of the sleeve of the utility model.

[0016] Figure 4 This is an exploded view of the mounting base, placement ring and chromatographic column of the utility model.

[0017] Figure 5 It is a three-dimensional structural diagram of the elastic rope, hinge, guide frame and other components of the utility model.

[0018] Markings in the figure are: 1-liquid chromatograph, 101-mounting column, 102-feed port, 2-mounting ring, 3-hinge, 4-sealing cover, 5-sleeve, 6-placement ring, 601-connecting rod, 7-chromatographic column, 8-rotating shaft, 9-first bevel gear, 10-mounting seat, 1001-second bevel gear, 11-third bevel gear, 12-elastic rope, 13-guide frame, 14-sealing strip, 15-knob. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods, but this does not limit the scope of protection and application of the present invention.

[0020] An optimized structure of a high performance liquid chromatography instrument for the detection of Chinese medicinal materials, such as Figure 1-Figure 5As shown, it includes a liquid chromatograph 1, a mounting column 101, a feed port 102, a mounting ring 2, a hinge 3, a sealing cover 4, a sleeve 5, a placement ring 6, a connecting rod 601, a chromatographic column 7, a rotating shaft 8, a first bevel gear 9, a mounting seat 10, a second bevel gear 1001, a third bevel gear 11, an elastic rope 12, a guide frame 13, a sealing strip 14 and a knob 15. The mounting column 101 is installed inside the liquid chromatograph 1, and a plurality of feed ports 102 are evenly spaced at the top of the liquid chromatograph 1. The top of the mounting column 101 is connected to the mounting ring 2. The liquid chromatograph 1 is evenly spaced with hinges 3 installed on the top, and a sealing cover 4 is rotatably connected to the hinge 3. The sealing cover 4 fits the feed port 102 and can seal the feed port 102. A plurality of sleeves 5 are evenly spaced inside the mounting column 101. The sleeve 5 can be used to lift and lower the placement ring 6. The sleeve 5 is threadedly connected to the placement ring 6. The bottom of the placement ring 6 is connected to a connecting rod 601. The sliding groove in the connecting rod 601 matches the size of the protrusion in the mounting seat 10 to form a precise sliding fit. A chromatographic column 7 is placed in the placement ring 6. The outer wall of the liquid chromatograph 1 is evenly spaced. A plurality of rotating shafts 8 are evenly spaced and connected to the rotation. A first bevel gear 9 is installed on the outer end of the rotating shaft 8. A plurality of mounting seats 10 are evenly spaced and connected to the rotation at the bottom of the liquid chromatograph 1. The connecting rod 601 slides with the mounting seat 10. A second bevel gear 1001 is installed on the outer ring of the mounting seat 10. The first bevel gear 9 is meshed with the second bevel gear 1001. The second bevel gear 1001 can drive the mounting seat 10 to rotate. The outer ring of the mounting column 101 is evenly spaced and connected to the rotation. A plurality of third bevel gears 11 are meshed with the second bevel gear 1001. The first bevel gear 9 is meshed with the second bevel gear 1001. The second bevel gear 1001 can drive the mounting seat 10 to rotate. The three-bevel gear 11 can reel in the elastic rope 12. An elastic rope 12 is wound around the third bevel gear 11. The other end of the elastic rope 12 is connected to the sealing cover 4 at the corresponding position. The elastic rope 12 can pull the sealing cover 4. A plurality of guide frames 13 are evenly spaced and connected to the top of the liquid chromatograph 1. The guide frames 13 are in contact with the elastic rope 12. The guide frames 13 can guide the elastic rope 12. A sealing strip 14 is installed on the outer ring of the sealing cover 4. The sealing strip 14 can increase the sealing performance of the sealing cover 4. A knob 15 is connected to the outer end of the rotating shaft 8. The knob 15 facilitates the user to rotate the rotating shaft 8.

[0021] When the device needs to be used, when the chromatographic column 7 needs to be placed, the user will rotate the knob 15 counterclockwise, the knob 15 drives the rotating shaft 8 and the first bevel gear 9 to rotate, the rotation of the first bevel gear 9 drives the second bevel gear 1001 to rotate, the rotation of the second bevel gear 1001 drives the mounting base 10 and the connecting rod 601 to rotate, the connecting rod 601 drives the placement ring 6 to rotate, when the placement ring 6 rotates, it will slide upward along the thread of the inner wall of the sleeve 5, and at the same time the second bevel gear 1001 drives the third bevel gear 11 to rotate, the rotation of the third bevel gear 11 will reel in the elastic rope 12, when the elastic rope 12 is reeled in, the sealing cover 4 is rotated backward along the hinge 3 to open it, and when the placement ring 6 rotates and moves to a suitable position, the user will no longer rotate the knob 15, and the chromatographic column 7 can be placed from the feed port 102 In the placement ring 6, when the chromatographic column 7 is placed, the user reverses the knob 15, and the knob 15 drives the first bevel gear 9 to rotate, so that the placement ring 6 moves downward along the thread inside the sleeve 5. When the third bevel gear 11 is reversed, the elastic rope 12 will no longer be wound, and the elastic rope 12 will no longer be subjected to tension, so the sealing cover 4 is reset, so that the sealing cover 4 seals the feed port 102. When the placement ring 6 moves to the appropriate position, the user no longer rotates the knob 15. At this time, the liquid chromatograph 1 can be started for operation. When a separate chromatographic column 7 needs to be taken out for inspection or cleaning, the user can repeat the above operation to move the placement ring 6 to the appropriate position, and then take out the chromatographic column 7. When the inspection or cleaning is completed, the knob 15 is reversed to return the placement ring 6 to its original position.

[0022] The above is a detailed introduction to the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, based on the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An optimized structure of a high performance liquid chromatograph for detecting Chinese medicinal materials, characterized in that: The invention comprises a liquid chromatograph (1), a mounting column (101), a feed port (102), a mounting ring (2), a hinge (3), a sealing cover (4), a sleeve (5), a placement ring (6), a connecting rod (601) and a chromatographic column (7). The middle of the inner bottom surface of the liquid chromatograph (1) is fixedly connected with the mounting column (101). A plurality of feed ports (102) are evenly spaced apart on the top of the liquid chromatograph (1). The top of the mounting column (101) is fixedly connected with the mounting ring (2). The top of the liquid chromatograph (1) is fixedly connected with the hinge (3) at even intervals. The hinge (3) is rotatably connected with the sealing cover (4). The sealing cover (4) is fitted with the feed port (102). A plurality of sleeves (5) are evenly spaced apart inside the mounting column (101). The sleeve (5) is internally threadedly connected with the placement ring (6). The middle of the bottom surface of the placement ring (6) is fixedly connected with the connecting rod (601). The chromatographic column (7) is placed inside the placement ring (6).

2. The optimized structure of a high performance liquid chromatograph for detecting Chinese medicinal materials according to claim 1, characterized in that: The liquid chromatograph (1) further comprises a rotating shaft (8), a first bevel gear (9), a mounting seat (10), a second bevel gear (1001), a third bevel gear (11) and an elastic rope (12). The outer wall of the liquid chromatograph (1) is evenly spaced and rotatably connected to a plurality of rotating shafts (8). The outer end of the rotating shaft (8) is fixedly connected to the first bevel gear (9). The inner bottom of the liquid chromatograph (1) is evenly spaced and rotatably connected to a plurality of mounting seats (10). The connecting rod (601) is slidably matched with the mounting seat (10). The outer ring of the mounting seat (10) is fixedly connected to the second bevel gear (1001). The first bevel gear (9) is meshed with the second bevel gear (1001). The outer ring of the mounting column (101) is evenly spaced and rotatably connected to a plurality of third bevel gears (11). The second bevel gear (1001) is meshed with the third bevel gear (11). An elastic rope (12) is wound around the third bevel gear (11). The other end of the elastic rope (12) is connected to the sealing cover (4) at the corresponding position.

3. The optimized structure of a high performance liquid chromatograph for detecting Chinese medicinal materials according to claim 2, characterized in that: It also includes a guide frame (13). A plurality of guide frames (13) are evenly spaced and installed on the top of the liquid chromatograph (1). The guide frames (13) are in contact with the elastic rope (12).

4. The optimized structure of a high performance liquid chromatograph for detecting Chinese medicinal materials according to claim 3, characterized in that: It also includes a sealing strip (14), and the outer ring of the sealing cover (4) is equipped with the sealing strip (14).

5. The optimized structure of a high performance liquid chromatograph for detecting Chinese medicinal materials according to claim 4, characterized in that: It also includes a knob (15), and the outer end of the rotating shaft (8) is fixedly connected to the knob (15).

6. The optimized structure of a high performance liquid chromatograph for detecting Chinese medicinal materials according to claim 5, characterized in that: The sliding groove in the connecting rod (601) matches the size of the protrusion in the mounting seat (10) to form a precise sliding fit.