Liquid phase pretreatment equipment of high performance liquid chromatograph

Abstract

The utility model discloses liquid phase pretreatment equipment of a high performance liquid chromatograph, which relates to the technical field of liquid chromatographs and comprises a shell, a connecting rod is rotatably mounted on one side in the shell, a rotating door is fixedly connected onto the connecting rod, a detection table is slidably arranged in the shell in a limited manner, and a placement groove is formed in the middle of the upper end surface of the detection table; clamping rings are movably arranged on the two sides of the top end of the detection table, and the two clamping rings limit the liquid accumulator in the containing groove. The liquid accumulator detection device is provided with a rotating door, a first bevel gear, a lead screw, a second bevel gear, a moving block, a guide rod and a threaded rod; and when the rotating door is closed, the liquid storage device automatically moves towards the interior of the shell, the two clamping rings automatically get close to each other to clamp and fix the liquid storage device, otherwise, the liquid storage device is taken out, fixing and taking of the liquid storage device are facilitated, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of liquid chromatography technology, and in particular to a liquid phase pretreatment device for a high performance liquid chromatograph. Background Technology

[0002] A chromatograph is a device used for chromatographic separation and analysis, including an injection system, a detection system, a recording and data processing system, a temperature control system, and a mobile phase control system. Modern chromatographs are characterized by stability, sensitivity, versatility, and high degree of automation. They include gas chromatographs, liquid chromatographs, and gel permeation chromatographs, which are widely used for the analysis of certain contents of chemical products and polymer materials.

[0003] A liquid chromatograph disclosed in Chinese patent CN220690864U includes a liquid chromatograph body, which includes a housing and a fixing device inside the housing for fixing a liquid reservoir. The fixing device is connected to a lifting device for lifting the fixing device. The lifting device and the fixing device cooperate to place and remove the liquid reservoir. A locking device is provided on the housing.

[0004] When using the existing liquid chromatograph, it is necessary to first open the door on the top of the outer casing, then place the liquid reservoir on the placement slot, fasten the steel rings on both sides of the liquid reservoir, and then use fastening bolts and fastening nuts to fix the liquid reservoir to the base. This makes the process of fixing the liquid reservoir cumbersome and reduces work efficiency.

[0005] To address the aforementioned problems, this invention proposes a liquid phase pretreatment device for a high-performance liquid chromatograph. Utility Model Content

[0006] To address the problems existing in the background technology, this utility model proposes a liquid phase pretreatment device for a high-performance liquid chromatograph.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a liquid pretreatment device for a high performance liquid chromatograph, comprising a housing, a connecting rod rotatably mounted on one side of the housing, a rotating door fixedly connected to the connecting rod, a detection stage slidably positioned inside the housing, and a placement groove provided in the middle of the upper end face of the detection stage; clamping rings are movably positioned on both sides of the top of the detection stage, and the two clamping rings limit the liquid reservoir within the placement groove.

[0008] Preferably, the upper surface of the testing table is provided with sliding grooves on both sides, and threaded blocks are slidably installed inside the sliding grooves. Clamping rings are fixedly installed on the top of the threaded blocks. A threaded rod is rotatably installed inside the testing table. The threaded rod has threads with opposite directions on both sides, and the two threaded blocks are respectively threaded to the two sides of the threaded rod.

[0009] Preferably, both ends of the threaded rod extend out of the interior of the testing platform, and gears are fixedly connected to both ends of the threaded rod. Toothed plates are fixedly installed on both sides of the inner wall of the outer shell, and the gears mesh with the corresponding toothed plates.

[0010] Preferably, a first bevel gear is fixedly installed on the outer side of the connecting rod, a lead screw is rotatably installed inside the housing, a second bevel gear is fixedly installed at one end of the lead screw, the first bevel gear and the second bevel gear are meshed and connected, a moving block is threadedly connected to the outer side of the lead screw, and the moving block is fixedly connected to the testing table.

[0011] Preferably, a guide rod is fixedly installed inside the housing on the side opposite to the lead screw, and a limit block is slidably installed on the outside of the guide rod, with the limit block fixedly connected to the testing table.

[0012] Beneficial effects

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The liquid pretreatment device of this high-performance liquid chromatograph is equipped with a rotating door, a first bevel gear, a lead screw, a second bevel gear, a moving block, a guide rod, and a threaded rod. When the rotating door is closed, the liquid reservoir automatically moves into the outer shell, and two clamping rings automatically move closer to each other to clamp and fix the liquid reservoir. Conversely, the liquid reservoir can be removed by moving it away from the rotating door. This facilitates the fixing and removal of the liquid reservoir and improves work efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side cross-sectional view of the present invention;

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0019] Reference numerals: 1. Outer shell; 2. Connecting rod; 3. Rotating door; 4. First bevel gear; 5. Lead screw; 6. Second bevel gear; 7. Moving block; 8. Guide rod; 9. Detection table; 10. Threaded rod; 11. Threaded block; 12. Clamping ring; 13. Liquid reservoir; 14. Gear; 15. Tooth plate. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a liquid pretreatment device for a high performance liquid chromatograph, including a housing 1, a connecting rod 2 rotatably installed on one side of the inside of the housing 1, and a rotating door 3 fixedly connected to the connecting rod 2.

[0022] The inner limit sliding of the outer casing 1 is equipped with a detection platform 9.

[0023] Specifically, a first bevel gear 4 is fixedly installed on the outer side of the connecting rod 2, a lead screw 5 is rotatably installed inside the outer casing 1, a second bevel gear 6 is fixedly installed at one end of the lead screw 5, the first bevel gear 4 and the second bevel gear 6 are meshed and connected, and a moving block 7 is threadedly connected to the outer side of the lead screw 5, and the moving block 7 is fixedly connected to the testing table 9.

[0024] A placement slot is provided in the middle of the upper surface of the testing table 9.

[0025] The top two sides of the testing platform 9 are equipped with movable clamping rings 12.

[0026] The upper end face of the testing table 9 is provided with sliding grooves on both sides, and threaded blocks 11 are slidably installed inside the sliding grooves. Clamping rings 12 are fixedly installed on the top of the threaded blocks 11, and threaded rods 10 are rotatably installed inside the testing table 9.

[0027] Specifically, both ends of the threaded rod 10 extend out of the interior of the testing table 9, and gears 14 are fixedly connected to both ends of the threaded rod 10. Toothed plates 15 are fixedly installed on both sides of the inner wall of the outer casing 1, and the gears 14 mesh with the corresponding toothed plates 15.

[0028] The threaded rod 10 has threads with opposite directions on both sides, and two threaded blocks 11 are threadedly connected to both sides of the threaded rod 10 respectively.

[0029] Two clamping rings 12 limit the liquid reservoir 13 within the placement tank.

[0030] Inside the outer casing 1, on the side opposite to the lead screw 5, a guide rod 8 is fixedly installed. A limit block is slidably installed on the outside of the guide rod 8, and the limit block is fixedly connected to the detection table 9.

[0031] Working principle:

[0032] In use, the reservoir 13 is placed on top of the testing platform 9, the rotating door 3 is closed, and the first bevel gear 4 on the surface of the connecting rod 2 is rotated. The first bevel gear 4 meshes with the second bevel gear 6, which in turn rotates the second bevel gear 6. The rotation of the second bevel gear 6 drives the lead screw 5 to rotate, which in turn moves the moving block 7, thereby moving the testing platform 9 and the reservoir 13 on top of it into the outer casing 1. During the inward movement, the gear 14 meshes with the toothed plate 15, causing the gear 14 to rotate, which in turn drives the threaded rod 10 to rotate. The rotation of the threaded rod 10 causes the two clamping rings 12 to move closer together and clamp and fix the reservoir 13. The operation is simple and improves work efficiency.

[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A liquid phase pre-treatment device of a high performance liquid chromatograph comprising a housing (1), characterized in that: The inside of the shell (1) is rotatably provided with a connecting rod (2), and the connecting rod (2) is fixedly provided with a rotating door (3). The inside of the shell (1) is slidably provided with a detection table (9), and the upper end surface of the detection table (9) is provided with a placing groove. The top of the detection table (9) is movably provided with a clamping ring (12), and the two clamping rings (12) limit the liquid accumulator (13) in the placing groove.

2. The liquid phase pretreatment device of a high performance liquid chromatograph according to claim 1, characterized in that: The upper end surface of the detection table (9) is provided with a sliding groove on both sides, and the sliding groove is slidably provided with a threaded block (11). The clamping ring (12) is fixedly installed at the top of the threaded block (11). The inside of the detection table (9) is rotatably provided with a threaded rod (10), and the two sides of the threaded rod (10) are provided with threads in opposite directions. The two threaded blocks (11) are respectively connected with the threads on the two sides of the threaded rod (10).

3. The liquid phase pretreatment device of a high performance liquid chromatograph according to claim 1, characterized in that: The two ends of the threaded rod (10) extend out of the inside of the detection table (9), and the two ends of the threaded rod (10) are fixedly provided with a gear (14). The inner wall of the shell (1) is fixedly provided with a toothed plate (15) on both sides. The gear (14) is connected with the corresponding toothed plate (15).

4. The liquid phase pretreatment device of a high performance liquid chromatograph according to claim 1, characterized by: The outer side of the connecting rod (2) is fixedly provided with a first bevel gear (4), and the inside of the shell (1) is rotatably provided with a lead screw (5). One end of the lead screw (5) is fixedly provided with a second bevel gear (6). The first bevel gear (4) is connected with the second bevel gear (6). The outer side of the lead screw (5) is screw-connected with a moving block (7), and the moving block (7) is fixedly connected with the detection table (9).

5. The liquid pre-treatment device of a high performance liquid chromatograph according to claim 1, characterized by: The inside of the shell (1) is fixedly provided with a guide rod (8) away from the lead screw (5). The outer side of the guide rod (8) is slidably provided with a limiting block, and the limiting block is fixedly connected with the detection table (9).

Images