An adjustable high performance liquid chromatograph

Abstract

This invention discloses an adjustable high-performance liquid chromatograph, comprising an external assembly, within which a detection body is movably disposed. Multiple sets of fixed threaded components are rotatably mounted on one side of the external assembly, with a movable threaded rod internally threaded into each fixed threaded component. The movable threaded rod is slidably connected to the external assembly. An external transmission component is disposed between the fixed threaded components at the same height. One end of the movable threaded rod extends into the external assembly and is equipped with a conduit fixing device. The conduit fixing device can limit and fix the connecting lines and connecting conduits between the various systems. The detection body comprises a detection system, a separation system, an injection system, a power system, and a tray. Positioning devices are provided on one side of each of the detection system, separation system, injection system, power system, and tray. The positioning devices can automatically connect and lock the detection body to one end of the movable threaded rod. This invention provides a chromatograph that is convenient for overall transportation and can be transported without disassembly.

Description

Technical Field

[0001] This invention relates to the field of chromatography technology, specifically to an adjustable high-performance liquid chromatograph. Background Technology

[0002] A chromatograph consists of a power system, an injection system, a separation system, a detection system, and a data processing system. These multiple systems are separate and not housed within a single main unit. This means that each time the chromatograph is transported, each component system must be shipped separately. Before each transport, the connections between the various systems must be disconnected, and after transport, they must be reconnected. This reconnection process is cumbersome, and improper connection can easily cause the chromatograph to malfunction. Reloading after transport requires specialized personnel, hindering the immediate usability of the chromatograph after delivery. Summary of the Invention

[0003] The technical problem of the present invention is to provide an adjustable high performance liquid chromatograph, which is convenient for overall transportation and does not require disassembly before and after transportation.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an adjustable high-performance liquid chromatograph, comprising an external equipment body, a detection body movably disposed within the external equipment body, multiple sets of fixed threaded components rotatably mounted on one side of the external equipment body, a movable threaded rod internally threaded to each fixed threaded component, the movable threaded rod being slidably connected to the external equipment body, an external transmission component disposed between the fixed threaded components at the same height, one end of the movable threaded rod extending into the external equipment body and disposed of a conduit fixing device, the conduit fixing device being able to limit and fix the connecting lines and connecting conduits between the various systems, the detection body comprising a detection system, a separation system, a sample injection system, a power system and a tray, a positioning device disposed on one side of each of the detection system, separation system, sample injection system, power system and tray, the positioning device being able to automatically connect and lock the detection body to one end of the movable threaded rod, the extended connecting wires and connecting conduits on the detection body being located between the positioning devices.

[0005] As a further embodiment of the present invention, the catheter fixing device includes a rotating threaded rod and a lower threaded component. The rotating threaded rod is rotatably installed on the side of the movable threaded rod away from the inner wall of the external device. An upper limit plate is threadedly connected to the rotating threaded rod. Both ends of the upper limit plate are threadedly connected to the rotating threaded rod and are located between two sets of horizontally arranged movable threaded rods. A side connecting plate is fixedly installed on the side of the movable threaded rod away from the rotating threaded rod, and a connecting rod is rotatably installed inside the side connecting plate.

[0006] As a further embodiment of the present invention, the lower threaded component is rotatably connected to the lower end of the movable threaded rod, a driven gear is fixedly installed at the upper end of the rotating threaded rod, an upper transmission component is provided between the rotating threaded rod and the upper end of the connecting rod, a driving bevel gear is fixedly installed at the lower end of the connecting rod, a lower limit rod is internally threaded to the lower threaded component, a driven bevel gear is fixedly installed on the lower threaded component, and the driving bevel gear meshes with the driven bevel gear.

[0007] As a further embodiment of the present invention, the positioning device includes a mounting base, which is fixedly installed on one side of the detection system, separation system, sample injection system, power system, and tray. Two sets of mounting bases are provided on each of the detection system, separation system, sample injection system, power system, and tray, and the two sets of mounting bases are horizontally arranged. The extension connecting wires and connecting conduits of the detection system, separation system, sample injection system, power system, and tray are all located between the two sets of mounting bases on one side of the detection system, separation system, sample injection system, power system, and tray. A sliding plate is slidably connected to the upper end of the mounting base.

[0008] As a further embodiment of the present invention, a movable connecting plate is fixedly installed on the upper end of the sliding plate, an embedded rod is fixedly installed on the lower surface of the movable connecting plate, an upper connecting plate is fixedly installed on the upper end of the mounting base, an internal threaded component is rotatably installed inside the upper connecting plate, an internal transmission component is provided between the internal threaded components, a driving gear is fixedly installed on each of the internal threaded components, the driving gear can mesh with the driven gear, and the internal threaded component is threadedly connected to the embedded rod.

[0009] As a further embodiment of the present invention, a snap-fit ​​rod is fixedly installed inside the mounting base, and a snap-fit ​​hole is provided at the front end of the movable threaded rod. The snap-fit ​​hole matches the snap-fit ​​rod, and an embedding hole is provided at the upper end of both the snap-fit ​​rod and the movable threaded rod. The embedding hole matches the embedding rod.

[0010] As a further embodiment of the present invention, multiple sets of spring components are fixedly installed on both sides of the outer equipment body. A curved panel is fixedly installed at the end of the spring component away from the inner wall of the outer equipment body. An internally threaded rod is fixedly installed at the upper end of the outer equipment body. A movable limiting plate is provided on the internally threaded rod. A movable threaded component is rotatably installed on the movable limiting plate corresponding to the position of the internally threaded rod. The movable threaded component is threadedly connected to the internally threaded rod. A movable gear is fixedly installed on the movable threaded component. A drive gear is rotatably installed on the movable limiting plate. The drive gear meshes with the movable gear. The movable limiting plate fits with the flow phase bottle.

[0011] As a further embodiment of the present invention, an external threaded rod is rotatably mounted on the side of the external equipment body near the fixed threaded component, a mounting plate is threadedly connected to the external threaded rod, and a movable gear is rotatably mounted on the mounting plate, the movable gear meshing with the external gear.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. In this invention, the movable threaded rod extends outside the external equipment body. The chromatograph components are fixed to the front end of the movable threaded rod via a positioning device. After the movable threaded rod is connected to the chromatograph components, the connection is locked by the positioning device. Simultaneously, the conduit fixing device clamps and fixes one end of the connecting wires and connecting pipes near the chromatograph components, preventing the connecting wires or connecting pipes from detaching from the chromatograph components when they are installed and fixed separately. This ensures the stability of the connection between the connecting wires and connecting pipes and prevents the connection between the chromatograph components from being broken during the placement of the chromatograph components into the external equipment body, thus maintaining the overall working performance of the chromatograph. During transportation, the external equipment body can be directly moved, facilitating the overall transportation and handling of the chromatograph. Frequent disassembly of the chromatograph before and after transportation reduces processes and improves efficiency. Furthermore, each chromatograph component is individually fixed within the external equipment body, and each system is not directly connected. Interference during transportation will not be transmitted between the chromatograph components, and the condition that each chromatograph component can be replaced individually is still maintained.

[0014] 2. In this invention, by using an upper limit plate and a lower limit rod, while the chromatograph components are fixedly connected to the movable threaded rod, the upper limit plate is driven to move downward and the lower limit rods on both sides move closer to each other. This fixes the connecting wires and connecting pipes between the upper limit plate and the lower limit rods, preventing external force from pulling the connecting wires and connecting pipes off the chromatograph components. This ensures a more stable and reliable connection between the various components of the chromatograph, ensuring the overall working performance of the chromatograph. Furthermore, it limits the position of the chromatograph components on the external equipment while the user fixes them, avoiding additional user operations, reducing the usage process, and improving the efficiency of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the overall structure of a preferred embodiment of an adjustable high-performance liquid chromatograph according to the present invention;

[0017] Figure 2 This is a rear-view structural schematic diagram of a preferred embodiment of an adjustable high-performance liquid chromatograph according to the present invention.

[0018] Figure 3 For the present invention Figure 2 A partial structural diagram at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the internal structure of the external equipment body in this invention. Figure 1 ;

[0020] Figure 5 For the present invention Figure 4 A partial structural diagram at point B;

[0021] Figure 6 For the present invention Figure 4 A partial structural diagram at point C;

[0022] Figure 7 For the present invention Figure 4 A partial structural diagram at point D;

[0023] Figure 8 This is a schematic diagram of the internal structure of the external equipment body in this invention. Figure 2 ;

[0024] Figure 9 For the present invention Figure 8 A partial schematic diagram of the structure at point E in the middle.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. External equipment body; 2. Spring component; 3. Curved panel; 4. Detection system; 5. Separation system; 6. Sample injection system; 7. Power system; 8. Tray; 9. Flow phase bottle; 10. External threaded rod; 11. Mounting plate; 12. Movable threaded rod; 13. External transmission component; 14. External gear; 15. Moving gear; 16. Fixed threaded component; 17. Movable limit plate; 18. Internal threaded rod; 19. Mounting base; 20. Side connecting plate; 21. Connecting rod; 22. Internal transmission component; 23. Driven gear; 24. Driving gear; 25. Movable connecting plate; 26. Sliding plate; 27. Embedded rod; 28. Upper connecting plate; 29. ​​Upper transmission component; 30. Driving bevel gear; 31. Lower limit rod; 32. Driven bevel gear; 33. Lower threaded component; 34. Movable gear; 35. Drive gear; 36. Movable threaded component; 37. Upper limit plate; 38. Rotating threaded rod. Detailed Implementation

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

[0028] Please see Figures 1-9 This invention provides a technical solution: an adjustable high-performance liquid chromatograph, comprising an external equipment body 1, a detection body being a movable device within the external equipment body 1, multiple sets of fixed threaded parts 16 being rotatably mounted on one side of the external equipment body 1, a movable threaded rod 12 being threadedly connected within the fixed threaded parts 16, the movable threaded rod 12 being slidably connected to the external equipment body 1, an external transmission part 13 being provided between the fixed threaded parts 16 at the same height, one end of the movable threaded rod 12 extending into the external equipment body 1 and being provided with a conduit fixing device, the conduit fixing device being able to limit and fix the connecting lines and connecting conduits between the various systems, the detection body comprising a detection system 4, a separation system 5, a sample injection system 6, a power system 7 and a tray 8, one side of each of the detection system 4, separation system 5, sample injection system 6, power system 7 and tray 8 being provided with a positioning device, the positioning device being able to automatically connect and lock the detection body to one end of the movable threaded rod 12, the extended connecting wires and connecting conduits on the detection body being located between the positioning devices.

[0029] During operation, the detection unit serves as the main component of the chromatograph. The detection system 4, separation system 5, injection system 6, and power system 7 are all separate devices. These systems are connected via external connecting wires and conduits to complete the chromatograph's detection work. The separate devices allow users to easily rearrange the stacking positions of the chromatograph components and replace parts and models. Each system is equipped with a positioning device. When placing the various chromatograph systems into the external equipment 1, the movable threaded rod 12 is first extended outside the external equipment 1. The chromatograph components are then fixed to the front end of the movable threaded rod 12 via the positioning device. After the movable threaded rod 12 is connected to the chromatograph components, the connection is locked by the positioning device. Simultaneously, the conduit fixing device clamps and fixes one end of the connecting wires and conduits near the chromatograph components to prevent movement of the components. When the system is installed and fixed individually, the connecting wires or pipes are disconnected from the components of the chromatograph, ensuring the stability of the connection and preventing the connection between the components from being broken during the placement of the chromatograph components into the external equipment 1. This maintains the overall working performance of the chromatograph. By driving the fixed threaded part 16 to rotate, the rotation of the fixed threaded part 16 interacts with the thread on the movable threaded rod 12. The movable threaded rod 12 moves to bring the chromatograph components into the external equipment 1. During transportation, the external equipment 1 can be directly moved, facilitating the overall transportation and handling of the chromatograph. The chromatograph does not need to be disassembled frequently before and after transportation, reducing processes and improving efficiency. Moreover, the components of the chromatograph are individually fixed in the external equipment 1, and each system is not directly connected to the others. Interference during transportation will not be transmitted between the components of the chromatograph, and the condition that the components of the chromatograph can be replaced individually is still maintained.

[0030] In this invention, the movable threaded rod 12 extends outside the external equipment body 1. The chromatograph's component system is fixed to the front end of the movable threaded rod 12 via a positioning device. After the movable threaded rod 12 is connected to the chromatograph's component system, the connection is locked by the positioning device. Simultaneously, the conduit fixing device clamps and fixes one end of the connecting wire and connecting pipe near the chromatograph's component system, preventing the connecting wire or connecting pipe from detaching from the chromatograph's component system when it is installed and fixed separately. This ensures the stability of the connection between the connecting wire and connecting pipe. This design avoids disconnecting the components of the chromatograph during placement into the external equipment 1, thus maintaining the overall performance of the chromatograph. During transport, the external equipment 1 can be directly moved, facilitating the overall transport and handling of the chromatograph. It also eliminates the need for frequent disassembly of the chromatograph before and after transport, reducing procedures and improving efficiency. Furthermore, each component of the chromatograph is individually fixed within the external equipment 1, with no direct connection between systems. Interference during transport will not be transmitted between the components, and the ability to replace individual components remains a crucial feature.

[0031] As a further embodiment of the present invention, the catheter fixing device includes a rotating threaded rod 38 and a lower threaded component 33. The rotating threaded rod 38 is rotatably installed on the side of the movable threaded rod 12 away from the inner wall of the outer equipment body 1. An upper limit plate 37 is threadedly connected to the rotating threaded rod 38. Both ends of the upper limit plate 37 are threadedly connected to the rotating threaded rod 38 and are located between two sets of horizontally arranged movable threaded rods 12. A side connecting plate 20 is fixedly installed on the side of the movable threaded rod 12 away from the rotating threaded rod 38. A connecting rod 21 is rotatably installed inside the side connecting plate 20.

[0032] As a further embodiment of the present invention, the lower threaded component 33 is rotatably connected to the lower end of the movable threaded rod 12, the upper end of the rotating threaded rod 38 is fixedly mounted with a driven gear 23, an upper transmission component 29 is provided between the upper end of the rotating threaded rod 38 and the upper end of the connecting rod 21, the lower end of the connecting rod 21 is fixedly mounted with a driving bevel gear 30, the lower threaded component 33 is internally threaded with a lower limit rod 31, and a driven bevel gear 32 is fixedly mounted on the lower threaded component 33, with the driving bevel gear 30 meshing with the driven bevel gear 32.

[0033] During operation, the connecting wires and pipes of the chromatograph system are positioned between the positioning seats. The driven gear 23 rotates, driving the rotating threaded rod 38 to rotate. The rotating threaded rod 38 interacts with the thread on the upper limit plate 37, driving the upper limit plate 37 to move downwards. The rotation of the rotating threaded rod 38 drives the connecting rod 21 to rotate via the upper transmission component 29. The rotation of the connecting rod 21 drives the driving bevel gear 30 to rotate. The rotation of the driving bevel gear 30 drives the driven bevel gear 32, which meshes with it, to rotate. The rotation of the driven bevel gear 32 drives the lower threaded component 33 to rotate. The rotation of the lower threaded component 33 interacts with the thread on the lower limit rod 31, thereby causing the lower end of the horizontally arranged movable threaded rods 12 on both sides to rotate. The lower limit rod 31 moves from both sides towards the middle, eventually bringing the two lower limit rods 31 closer together, so that the two lower limit rods 31 abut against each other. This places the lower limit rod 31 below the connecting wires and connecting pipes on the chromatograph system. Meanwhile, the upper limit plate 37 gradually moves down towards the lower limit rod 31. The upper limit plate 37 and the lower limit rod 31 fix the connecting wires and connecting pipes in the middle. This ensures that while the chromatograph system is fixed to the movable threaded rod 12, the connecting wires and connecting pipes are also fixed by the upper limit plate 37 and the lower limit rod 31, preventing external forces from pulling the connecting wires and connecting pipes off the chromatograph system.

[0034] In this invention, by using an upper limit plate 37 and a lower limit rod 31, while the chromatograph components are fixedly connected to the movable threaded rod 12, the upper limit plate 37 is driven to move downward and the lower limit rods 31 on both sides move closer to each other. This fixes the connecting wires and connecting pipes between the upper limit plate 37 and the lower limit rods 31, preventing external force from pulling the connecting wires and connecting pipes off the chromatograph components. This ensures a more stable and reliable connection between the various components of the chromatograph, ensuring the overall working performance of the chromatograph. Furthermore, it limits the position of the chromatograph components on the external equipment body 1 while the user fixes them, avoiding additional operations by the user, reducing the usage process of the device, and improving the efficiency of the device.

[0035] As a further embodiment of the present invention, the positioning device includes a mounting base 19, which is fixedly installed on one side of the detection system 4, separation system 5, sample injection system 6, power system 7, and tray 8. Two sets of mounting bases 19 are provided on each of the detection system 4, separation system 5, sample injection system 6, power system 7, and tray 8, and the two sets of mounting bases 19 are horizontally arranged. The extension connecting wires and connecting conduits of the detection system 4, separation system 5, sample injection system 6, power system 7, and tray 8 are all located between the two sets of mounting bases 19. A sliding plate 26 is slidably connected to the upper end of the mounting base 19.

[0036] As a further embodiment of the present invention, a movable connecting plate 25 is fixedly installed on the upper end of the sliding plate 26, an embedded rod 27 is fixedly installed on the lower surface of the movable connecting plate 25, an upper connecting plate 28 is fixedly installed on the upper end of the mounting base 19, an internal threaded component is rotatably installed in the upper connecting plate 28, an internal transmission component 22 is provided between the internal threaded components, a drive gear 24 is fixedly installed on each internal threaded component, the drive gear 24 can mesh with the driven gear 23, and the internal threaded component is threadedly connected to the embedded rod 27.

[0037] As a further embodiment of the present invention, a snap-fit ​​rod is fixedly installed inside the mounting base 19, and a snap-fit ​​hole is provided at the front end of the movable threaded rod 12. The snap-fit ​​hole matches the snap-fit ​​rod, and both the snap-fit ​​rod and the movable threaded rod 12 are provided with an embedding hole at their upper ends. The embedding hole matches the embedding rod 27.

[0038] During operation, when the chromatograph system is installed, the snap-fit ​​rod on the mounting base 19 of the chromatograph system is inserted into the snap-fit ​​hole at the front end of the threaded rod. Then, a drive motor drives the internal threaded part to rotate. The rotation of the internal threaded part interacts with the thread on the snap-fit ​​rod 27, thereby driving the snap-fit ​​rod 27 to move downward. The downward movement of the snap-fit ​​rod 27 causes the sliding plate 26 to slide into the positioning seat. The snap-fit ​​rod 27 moves downward, passes through the snap-fit ​​hole, passes through the movable threaded rod 12, and enters the snap-fit ​​rod, thereby fixing the chromatograph system and the movable threaded rod 12 together.

[0039] As a further embodiment of the present invention, multiple sets of spring components 2 are fixedly installed on both sides of the outer equipment body 1. A curved panel 3 is fixedly installed at the end of the spring component 2 away from the inner wall of the outer equipment body 1. An internal threaded rod 18 is fixedly installed at the upper end of the outer equipment body 1. A movable limiting plate 17 is provided on the internal threaded rod 18. A movable threaded component 36 is rotatably installed on the movable limiting plate 17 corresponding to the position of the internal threaded rod 18. The movable threaded component 36 is threadedly connected to the internal threaded rod 18. A movable gear 34 is fixedly installed on the movable threaded component 36. A drive gear 35 is rotatably installed on the movable limiting plate 17. The drive gear 35 meshes with the movable gear 34. The movable limiting plate 17 fits with the flowing phase bottle 9.

[0040] As a further embodiment of the present invention, an external threaded rod 10 is rotatably mounted on the side of the external equipment body 1 near the fixed threaded part 16, and a mounting plate 11 is threadedly connected to the external threaded rod 10. A movable gear 15 is rotatably mounted on the mounting plate 11, and the movable gear 15 meshes with the external gear 14.

Claims

1. An adjustable high-performance liquid chromatograph, comprising an external equipment body (1), characterized in that: The detection body is movably disposed inside the external equipment body (1). Multiple sets of fixed threaded parts (16) are rotatably installed on one side of the external equipment body (1). A movable threaded rod (12) is threadedly connected to the fixed threaded part (16). The movable threaded rod (12) is slidably connected to the external equipment body (1). An external transmission part (13) is disposed between the fixed threaded parts (16) at the same height. One end of the movable threaded rod (12) extends into the external equipment body (1) and is provided with a conduit fixing device. The conduit fixing device is for each system. The connecting lines and connecting conduits between the detection body are limited and fixed. The detection body consists of a detection system (4), a separation system (5), a sample injection system (6), a power system (7), and a tray (8). A positioning device is provided on one side of each of the detection system (4), the separation system (5), the sample injection system (6), the power system (7), and the tray (8). The positioning device can automatically connect and lock the detection body to one end of the movable threaded rod (12). The extended connecting wires and connecting conduits on the detection body are all located between the positioning devices. The catheter fixing device includes a rotating threaded rod (38) and a lower threaded component (33). The rotating threaded rod (38) is rotatably installed on the side of the movable threaded rod (12) away from the inner wall of the external equipment body (1). An upper limit plate (37) is threadedly connected to the rotating threaded rod (38). Both ends of the upper limit plate (37) are threadedly connected to the rotating threaded rod (38) and are located between two sets of horizontally arranged movable threaded rods (12). A side connecting plate (20) is fixedly installed on the side of the movable threaded rod (12) away from the rotating threaded rod (38). A connecting rod (21) is rotatably installed inside the side connecting plate (20). The lower threaded part (33) is rotatably connected to the lower end of the movable threaded rod (12). A driven gear (23) is fixedly installed at the upper end of the rotating threaded rod (38). An upper transmission part (29) is provided between the upper end of the rotating threaded rod (38) and the upper end of the connecting rod (21). A driving bevel gear (30) is fixedly installed at the lower end of the connecting rod (21). A lower limit rod (31) is internally threaded to the lower threaded part (33). A driven bevel gear (32) is fixedly installed on the lower threaded part (33). The driving bevel gear (30) meshes with the driven bevel gear (32). The positioning device includes a mounting base (19), and a sliding plate (26) is slidably connected to the upper end of the mounting base (19); A movable connecting plate (25) is fixedly installed on the upper end of the sliding plate (26), and an embedded rod (27) is fixedly installed on the lower surface of the movable connecting plate (25). An upper connecting plate (28) is fixedly installed on the upper end of the mounting base (19). An internal threaded component is rotatably installed inside the upper connecting plate (28). An internal transmission component (22) is provided between the internal threaded components. A drive gear (24) is fixedly installed on each of the internal threaded components. The drive gear (24) can mesh with the driven gear (23). The internal threaded component is threadedly connected to the embedded rod (27). A snap-fit ​​rod is fixedly installed inside the mounting base (19). A snap-fit ​​hole is provided at the front end of the movable threaded rod (12). The snap-fit ​​hole matches the snap-fit ​​rod. An embedding hole is provided at the upper end of both the snap-fit ​​rod and the movable threaded rod (12). The embedding hole matches the embedding rod (27). During installation, the snap-fit ​​rod is inserted into the snap-fit ​​hole at the front end of the threaded rod, and then the drive motor drives the internal threaded part to rotate.

2. The adjustable high-performance liquid chromatograph according to claim 1, characterized in that: The mounting base (19) is fixedly installed on one side of the detection system (4), separation system (5), injection system (6), power system (7) and tray (8). Two sets of mounting bases (19) are provided on each of the detection system (4), separation system (5), injection system (6), power system (7) and tray (8), and the two sets of mounting bases (19) are horizontally arranged. The extension connecting wires and connecting conduits of the detection system (4), separation system (5), injection system (6), power system (7) and tray (8) are located between the two sets of mounting bases (19).

3. The adjustable high-performance liquid chromatograph according to claim 1, characterized in that: Multiple sets of spring components (2) are fixedly installed on both sides of the external equipment body (1). A curved panel (3) is fixedly installed on the end of the spring component (2) away from the inner wall of the external equipment body (1). An internal thread rod (18) is fixedly installed on the upper end of the external equipment body (1). A movable limiting plate (17) is provided on the internal thread rod (18). A movable thread component (36) is rotatably installed on the movable limiting plate (17) corresponding to the position of the internal thread rod (18). The movable thread component (36) is threadedly connected to the internal thread rod (18). A movable gear (34) is fixedly installed on the movable thread component (36). A drive gear (35) is rotatably installed on the movable limiting plate (17). The drive gear (35) meshes with the movable gear (34). The movable limiting plate (17) fits with the flowing phase bottle (9).

4. The adjustable high-performance liquid chromatograph according to claim 2, characterized in that: The external equipment body (1) has an external threaded rod (10) rotatably mounted on the side near the fixed threaded part (16). The external threaded rod (10) is threadedly connected to a mounting plate (11). A movable gear (15) is rotatably mounted on the mounting plate (11). The movable gear (15) meshes with the external gear (14).

Images