A high performance liquid chromatography UV detector

Abstract

The utility model discloses a high efficiency liquid chromatogram UV detector, including liquid chromatograph body and with its top fixed loading stage, the top of loading stage is equipped with support mechanism and adjusting mechanism, the utility model relates to liquid chromatogram detection technical field can place the storage bottle who stores and stores the cleaning liquid to loading stage, through handle drive cross bar and make, make cross bar through first umbrella -shaped gear drive second umbrella -shaped gear rotation, second umbrella -shaped gear again drive second screw rotation, to make second screw cooperate with the sliding slot of first vertical board and drive sliding plate movement, adjust the height position of the lifting ring below sliding plate, after the hose passes through corresponding lifting ring to the storage bottle in through the bottle cap, rotate nut, adjust the lifting ring position, make every lifting ring support corresponding hose, like this, when liquid flows in the hose, the support of hose by lifting ring does not easily occur bending, guarantee the liquid flow efficiency and the service life of hose.

Description

Technical Field

[0001] This utility model relates to the field of liquid chromatography detection technology, specifically a high-performance liquid chromatography UV detector. Background Technology

[0002] The UV detector in liquid chromatography is currently the most widely used detector in HPLC. Its working principle is based on the Lambert-Beer law. This detector has high sensitivity, a wide linear range, and is insensitive to changes in flow rate and temperature, making it suitable for gradient elution separation. It has good versatility; any sample with lower volatility than the mobile phase can be detected, and substances with similar physical properties will give consistent responses under the same chromatographic conditions. Generally, the UV detector needs to be cleaned before and after use.

[0003] In current technologies, the cleaning of a high-performance liquid chromatography (HPLC) UV detector involves directly inserting a flexible tube into a bottle containing methanol or similar substances. As the liquid flows through the tube, its own weight causes the connection between the tube and the bottle cap to bend, reducing the efficiency of the liquid flow and shortening the lifespan of the tube. Therefore, this application proposes a high-performance liquid chromatography (HPLC) UV detector to address this problem. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a high-performance liquid chromatography (HPLC) UV detector to solve this problem. It solves the issue that in existing technologies, when cleaning the HPLC UV detector, the flexible tube is directly inserted into a bottle containing methanol or similar substances. This causes the liquid to bend at the connection point with the bottle cap due to its own weight, thus reducing liquid flow efficiency and shortening the tube's lifespan.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a high performance liquid chromatography UV detector, comprising a liquid chromatograph body and a stage fixedly connected to its top, wherein a plurality of storage bottles are placed on the top of the stage, a cap is screwed onto the top of the storage bottle, and a flexible tube is inserted into the insertion hole of the cap, wherein the end of the flexible tube away from the storage bottle is connected to the interior of the liquid chromatograph body, and a support mechanism and an adjustment mechanism are installed on the top of the stage; The support mechanism includes a first vertical plate fixed to the top of the platform. A slide plate is slidably connected to the slide groove of the first vertical plate, and a pair of sliders are slidably connected to a pair of slide grooves of the slide plate. A hanging ring is fixed to the bottom end of the slider, and the inner wall of the hanging ring is in contact with the outer wall of the hose. A limit component is installed at the bottom end of the slide plate.

[0006] Preferably, the limiting component includes a pair of second vertical plates fixed to the bottom end of the slide plate, and a first screw is rotatably connected inside the second vertical plates. The outer wall of the first screw is slidably connected to the protrusion of the slider. Nuts are provided on both sides of the slider, and the nuts are threadedly connected to the first screw.

[0007] Preferably, the adjustment mechanism includes a first horizontal plate and a second horizontal plate fixedly connected to the upper and lower sides of the side wall of the first vertical plate, respectively. A second screw is rotatably connected between the first horizontal plate and the second horizontal plate, and the outer wall of the second screw is connected to the internal thread of the slide plate. A horizontal bar is rotatably connected to the inside of the first vertical plate through a bearing, and a drive assembly is installed on the horizontal bar.

[0008] Preferably, the drive assembly includes a first bevel gear fixedly connected to one end of the crossbar near the second screw, a second bevel gear fixedly connected to the outer wall of the bottom end of the second screw, and the second bevel gear meshing with the first bevel gear.

[0009] Preferably, a handle is fixed to the end of the crossbar away from the second screw.

[0010] Beneficial effects This invention provides a high-performance liquid chromatography UV detector, which has the following advantages: The storage bottle containing the cleaning fluid can be placed on the platform. Turning the handle will rotate the crossbar, which in turn drives the second bevel gear via the first bevel gear. The second bevel gear then drives the second screw, which in turn moves the slide plate along the groove of the first vertical plate. The height of the hanging rings under the slide plate can be adjusted. Then, the hose is passed through the corresponding hanging ring and inserted into the storage bottle through the bottle cap. Turning the nut adjusts the position of the hanging rings so that each ring supports the corresponding hose. This way, when the liquid flows through the hose, the hose is less likely to bend due to the support of the hanging rings, thus ensuring the efficiency of liquid flow and the service life of the hose. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a planar sectional view of the present invention.

[0013] Figure 3 This is a partially enlarged schematic diagram of the present invention.

[0014] Figure 4 This is a partially enlarged schematic diagram of the present invention.

[0015] In the diagram: 1. Liquid chromatograph body; 2. Stage; 3. Storage bottle; 4. Bottle cap; 5. Tube; 6. First vertical plate; 7. Slide plate; 8. Second vertical plate; 9. First screw; 10. Slider; 11. Lifting ring; 12. Nut; 13. First horizontal plate; 14. Second horizontal plate; 15. Second screw; 16. Crossbar; 17. First bevel gear; 18. Handle; 19. Second bevel gear. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-4 This utility model provides a technical solution: a high performance liquid chromatography UV detector, including a liquid chromatograph body 1 and a stage 2 fixed to its top. Several storage bottles 3 are placed on the top of the stage 2. Bottle caps 4 are screwed to the top of the storage bottles 3, and flexible tubes 5 are inserted into the insertion holes of the bottle caps 4. The end of the flexible tubes 5 away from the storage bottles 3 is connected to the interior of the liquid chromatograph body 1. A support mechanism and an adjustment mechanism are installed on the top of the stage 2. The support mechanism includes a first vertical plate 6 fixedly connected to the top of the platform 2. A slide plate 7 is slidably connected to the slide groove of the first vertical plate 6, and a pair of sliders 10 are slidably connected to a pair of slide grooves of the slide plate 7. A lifting ring 11 is fixedly connected to the bottom end of the slider 10, and the inner wall of the lifting ring 11 is in contact with the outer wall of the hose 5. A limit component is installed at the bottom end of the slide plate 7. The bottle cap 4 has a central insertion hole, which is then sealed to improve the sealing at the connection with the hose 5. Slide grooves are machined on the first vertical plate 6 and the slide plate 7. The first vertical plate 6 can limit the slide plate 7 through the slide groove, and the slide plate 7 can limit the slider 10 and the hanging ring 11 through the slide groove.

[0018] In this embodiment, the limiting component includes a pair of second vertical plates 8 fixedly connected to the bottom end of the slide plate 7, and a first screw 9 is rotatably connected inside the second vertical plate 8. The outer wall of the first screw 9 is slidably connected to the protrusion of the slider 10. Nuts 12 are provided on both sides of the slider 10, and the nuts 12 are threadedly connected to the first screw 9. After adjusting the positions of the two adjacent nuts 12 on the first screw 9, the positions of the slider 10 and the lifting ring 11 can be adjusted.

[0019] In this embodiment, the adjustment mechanism is further configured such that the first horizontal plate 13 and the second horizontal plate 14 are fixedly connected to the upper and lower sides of the side wall of the first vertical plate 6 respectively. A second screw 15 is rotatably connected between the first horizontal plate 13 and the second horizontal plate 14, and the outer wall of the second screw 15 is threadedly connected to the inside of the slide plate 7. A horizontal bar 16 is rotatably connected to the inside of the first vertical plate 6 through a bearing, and a drive assembly is installed on the horizontal bar 16.

[0020] In this embodiment, the driving assembly includes a first bevel gear 17 fixedly connected to one end of the crossbar 16 near the second screw 15, and a second bevel gear 19 fixedly connected to the outer wall of the bottom end of the second screw 15, and the second bevel gear 19 meshing with the first bevel gear 17. The handle 18 drives the crossbar 16 to rotate, which in turn drives the second bevel gear 19 to rotate via the first bevel gear 17. The second bevel gear 19 then drives the second screw 15 to rotate, so that the second screw 15, in conjunction with the groove of the first vertical plate 6, drives the slide plate 7 to move, thereby adjusting the height of the hanging ring 11 and other objects below the slide plate 7.

[0021] In this embodiment, the crossbar 16 is further configured such that a handle 18 is fixedly connected to the end away from the second screw 15.

[0022] It is worth noting that all standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The models of electrical structure equipment involved can be selected according to the user's needs, as long as they meet the requirements of this application. In addition, the circuit connection adopts conventional connection methods in the prior art. The control, current detection, position feedback, predicted voltage synchronization, and parameter adjustment of the electrical equipment are all existing technologies and will not be described in detail here. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0023] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0024] Example: When this device is needed, assemble the components according to the diagram, ensuring bolts are tightened and welds are secure. Then connect the circuit and control devices, check all interfaces for errors, and power on for testing to ensure current detection, position feedback, and other functions are normal. Install the control devices in appropriate positions. Clean and inspect the corresponding structures before and after use. Then place the storage bottle 3 containing cleaning liquid on the platform 2, turn the handle 18, and the handle 18 will drive the crossbar 16 to rotate, causing the crossbar 16 to drive the second bevel gear through the first bevel gear 17. Rotating the second bevel gear 19, the second screw 15 rotates, causing the second screw 15 to move in conjunction with the groove of the first vertical plate 6 to move the slide plate 7. The height of the hanging rings 11 below the slide plate 7 is adjusted. Then, the hose 5 is passed through the corresponding hanging ring 11 and inserted into the storage bottle 3 through the bottle cap 4. Rotating the nut 12 adjusts the position of the hanging rings 11 so that each hanging ring 11 supports the corresponding hose 5. In this way, when the liquid flows in the hose 5, the hose 5 is not easy to bend due to the support of the hanging rings 11, thus ensuring the efficiency of liquid flow and the service life of the hose 5.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A high-performance liquid chromatography (HPLC) UV detector, comprising an HPLC body (1) and a stage (2) fixedly connected to its top, characterized in that: Several storage bottles (3) are placed on the top of the stage (2). A bottle cap (4) is screwed onto the top of the storage bottle (3), and a flexible tube (5) is inserted into the insertion hole of the bottle cap (4). The end of the flexible tube (5) away from the storage bottle (3) is connected to the interior of the liquid chromatograph body (1). A support mechanism and an adjustment mechanism are installed on the top of the stage (2). The support mechanism includes a first vertical plate (6) fixedly connected to the top of the platform (2). A slide plate (7) is slidably connected to the slide groove of the first vertical plate (6), and a pair of sliders (10) are slidably connected to a pair of slide grooves of the slide plate (7). A lifting ring (11) is fixedly connected to the bottom end of the slider (10), and the inner wall of the lifting ring (11) is in contact with the outer wall of the hose (5). A limit component is installed at the bottom end of the slide plate (7).

2. A high performance liquid chromatography UV detector according to claim 1, characterized in that, The limiting component includes a pair of second vertical plates (8) fixed to the bottom end of the slide plate (7), and a first screw (9) is rotatably connected inside the second vertical plate (8). The outer wall of the first screw (9) is slidably connected to the protrusion of the slider (10). Nuts (12) are provided on both sides of the slider (10), and the nuts (12) are threadedly connected to the first screw (9).

3. The HPLC UV detector of claim 1, wherein, The adjustment mechanism includes a first horizontal plate (13) and a second horizontal plate (14) fixedly connected to the upper and lower sides of the side wall of the first vertical plate (6), respectively. A second screw (15) is rotatably connected between the first horizontal plate (13) and the second horizontal plate (14), and the outer wall of the second screw (15) is threadedly connected to the inside of the slide plate (7). A horizontal bar (16) is rotatably connected inside the first vertical plate (6) through a bearing, and a drive assembly is installed on the horizontal bar (16).

4. A high performance liquid chromatography UV detector according to claim 3, wherein, The drive assembly includes a first bevel gear (17) fixedly connected to one end of the crossbar (16) near the second screw (15), and a second bevel gear (19) fixedly connected to the outer wall of the bottom end of the second screw (15), and the second bevel gear (19) meshes with the first bevel gear (17).

5. The HPLC UV detector of claim 3, wherein, A handle (18) is fixed to the end of the crossbar (16) away from the second screw (15).

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