Sample introduction mechanism of liquid chromatograph-mass spectrometer

Abstract

The utility model relates to the cross technical field of analytical chemistry and instrument manufacturing. The sample introduction mechanism comprises a sample introduction box, a sample cover is rotatably hinged to the upper end of the sample introduction box, a handle is arranged at the upper end of the sample cover, a cleaning groove is formed in the upper end of the sample introduction box, a water pump is installed at the lower end of the cleaning groove, and a containing groove is formed in the lower end of the sample introduction box. The sample cover is opened, then cleaning liquid is placed in the cleaning groove, after the cleaning liquid is inverted, the water pump can be started, at the moment, the cleaning liquid can clean the interiors of the multiple sets of storage boxes through matched use of the multiple sets of filter holes and finally flow into the cleaning box, and at the moment, the used cleaning liquid in the cleaning box can be poured out; and then the radiator is started, so that liquid in the equipment is air-dried through the ventilation holes, the workload and the time cost of manual cleaning are reduced, and the use efficiency of the equipment is improved to a certain extent.

Description

Technical Field

[0001] This utility model relates to the interdisciplinary field of analytical chemistry and instrument manufacturing; more specifically, it relates to an injection mechanism for a liquid chromatography-mass spectrometry instrument. Background Technology

[0002] The interdisciplinary field of analytical chemistry and instrument manufacturing is responsible for accurately, precisely, and stably introducing the samples to be analyzed into a liquid chromatography system. The sample introduction mechanism of a liquid chromatography-mass spectrometry instrument is often used in the interdisciplinary field of analytical chemistry and instrument manufacturing. On the one hand, based on the needs of analytical chemistry to study the composition, structure, properties, and change laws of substances, the functions and performance indicators that the instrument should have are defined. On the other hand, instrument manufacturing technology is used to transform these needs into practical and operable instruments and equipment.

[0003] Currently, existing sample introduction mechanisms require manual cleaning when the equipment is used for extended periods, increasing the workload and time cost and reducing the efficiency of the equipment. Furthermore, existing mechanisms often make it inconvenient to inspect samples inside the equipment promptly, making sample retrieval cumbersome and further reducing staff efficiency and the overall convenience of the equipment. Therefore, there is an urgent need for a new sample introduction mechanism for liquid chromatography-mass spectrometry (LC-MS) instruments to address these issues. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an injection mechanism for a liquid chromatography-mass spectrometry instrument to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: an injection mechanism for a liquid chromatography-mass spectrometry instrument, comprising an injection chamber:

[0006] The sample injection box has a sample cover hinged to its upper end, and the sample cover has a handle at its upper end. The upper end of the sample injection box has a cleaning trough, and the lower end of the cleaning trough is equipped with a water pump. The lower end of the sample injection box has a storage trough, and there are three sets of storage troughs. A storage box is slidably inserted inside the storage trough. A radiator is installed on one end surface of the sample injection box. A cleaning box is slidably inserted at the lower end of the sample injection box. A fixing block is fixed on one side of one end of the storage box, and a sticky note block is slidably inserted inside the fixing block.

[0007] Preferably, the lower end of the sample injection box is provided with an anti-slip pad, which makes the equipment more stable during use.

[0008] Preferably, magnets are provided on the surface of the lower end of the sample cover and the upper end of the sample injection box at corresponding positions. The positions of the sample injection box and the sample cover can be fixed by the cooperation of the magnets.

[0009] Preferably, the bottom surface of the storage slot and the bottom surface of the storage box are evenly provided with filter holes, and the two sets of filter holes are positioned correspondingly. By using the two sets of filter holes in combination, the cleaning liquid can flow downwards more quickly into the interior of the cleaning box.

[0010] Preferably, the inner wall of the sample inlet box is provided with ventilation holes, and the position of the ventilation holes corresponds to the position of the heat sink. By using the ventilation holes and the heat sink together, the water vapor inside the equipment can be dried, thereby improving the efficiency of the equipment.

[0011] Preferably, both the storage box and the cleaning box have a handle on one end surface, which allows the storage box and the cleaning box to be opened or closed more quickly.

[0012] Preferably, one end of the sticky note block is provided with a T-shaped block, and the T-shaped block fits against the inner wall of the fixing block. The use of the T-shaped block can improve the stability of the sticky note block when it is placed.

[0013] The technical effects and advantages of this utility model are as follows: By opening the sample cover, the cleaning liquid is placed inside the cleaning tank. After the cleaning liquid is poured out, the water pump can be started. At this time, the cleaning liquid can be used in conjunction with multiple sets of filter holes to clean the inside of multiple sets of storage boxes. Finally, it flows into the cleaning box. At this time, the cleaning liquid used in the cleaning box can be poured out. Then, the radiator is started, and the liquid inside the equipment is dried through the ventilation holes. This reduces the workload and time cost of manual cleaning and improves the efficiency of equipment to a certain extent.

[0014] By taking out a sticky note block, labeling it with the corresponding text according to its layer number, and then sliding the sticky note block into the fixed block to fix its position, the staff can find samples faster, thereby improving their work efficiency and convenience. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is an exploded three-dimensional structural diagram of the water pump of this utility model;

[0017] Figure 3 This is an exploded three-dimensional structural diagram of the storage slot of this utility model;

[0018] Figure 4This is an exploded three-dimensional structural diagram of the radiator of this utility model;

[0019] Figure 5 This is an exploded three-dimensional structural diagram of the sticky note block of this utility model.

[0020] The attached diagram is labeled as follows: 1. Sample inlet box; 2. Sample cover; 3. Cleaning tank; 4. Water pump; 5. Storage tank; 6. Storage box; 7. Radiator; 8. Cleaning box; 9. Fixing block; 10. Sticky note block. Detailed Implementation

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Example 1

[0023] like Figures 1 to 4 As shown, this embodiment proposes a sample introduction mechanism for a liquid chromatography-mass spectrometry (LC-MS) instrument, including a sample introduction chamber 1. A sample cover 2 is hinged and rotatably connected to the upper end of the sample introduction chamber 1, and a handle is provided at the upper end of the sample cover 2. A cleaning groove 3 is provided at the upper end of the sample introduction chamber 1, and a water pump 4 is installed at the lower end of the cleaning groove 3. A storage groove 5 is provided at the lower end of the sample introduction chamber 1, and three sets of storage grooves 5 are provided. Anti-slip tracks are provided at both ends of the inner wall of the storage groove 5. A storage box 6 is slidably inserted into the inside of the storage groove 5. One end of the sample introduction chamber 1... A radiator 7 is installed on the surface. A cleaning box 8 is slidably inserted into the lower end of the sample injection box 1. An anti-slip pad is provided at the lower end of the sample injection box 1. Magnets are provided on one side of the lower end of the sample cover 2 and on the corresponding position of the upper end of the sample injection box 1. Filter holes are evenly opened on the bottom surface of the storage slot 5 and the bottom surface of the storage box 6. The positions of the two sets of filter holes are corresponding. Ventilation holes are opened on the inner wall of the sample injection box 1, and the position of the ventilation holes is corresponding to the position of the radiator 7. A handle is provided on one end of the surface of the storage box 6 and the cleaning box 8.

[0024] In this embodiment, rotating the handle causes the sample cover 2 to rotate, thereby allowing the cleaning solution to be poured into the cleaning tank 3. After the cleaning solution has been poured in, the sample cover 2 can be rotated again. When the two sets of magnets are in contact, the positions of the sample inlet box 1 and the sample cover 2 can be fixed. With the cooperation of the water pump 4, the cleaning solution inside the cleaning tank 3 can be poured into the lower end of the sample inlet box 1 and into the storage tank 5 and the storage box 6, and finally into the cleaning box 8. With the cooperation of the anti-slip pads, the equipment can be made more stable during use. With the cooperation of the anti-slip rails, the storage box 6 can be prevented from falling out of the storage tank 5 during use. With the cooperation of the filter holes, the cleaning solution can be passed through the interiors of multiple storage tanks 5 and storage boxes 6 to clean the interior of the storage boxes 6, thereby improving the efficiency of the equipment. With the cooperation of the ventilation holes and the heat sink 7, the water inside the storage tanks 5 and storage boxes 6 can be dried, thereby improving the cleaning speed of the equipment.

[0025] Example 2

[0026] like Figure 5 As shown, based on the same concept as the above embodiment, this embodiment also proposes: a fixing block 9 is fixed at one end of the storage box 6, and a sticky note block 10 is slidably inserted inside the fixing block 9. One end of the sticky note block 10 is provided with a T-shaped block, and the T-shaped block is in contact with the inner wall of the fixing block 9.

[0027] In this embodiment, by using the fixing block 9 and the sticky note block 10 together, the sample name is first written on the surface of the sticky note block 10 according to the sample placed inside the different storage boxes 6. Then, the sticky note block 10 is slidably inserted into the inside of the fixing block 9, thereby fixing the position of the sticky note block 10 and making it faster and more convenient for staff to find samples.

[0028] Working principle: When using the equipment, first open the sample cover 2, then place the cleaning solution inside the cleaning tank 3, and then start the water pump 4. At this time, the cleaning solution can be used in conjunction with multiple sets of filter holes to clean the inside of multiple sets of storage tanks 5 and storage boxes 6, and finally flow into the cleaning box 8. Finally, pour out the used cleaning solution inside the cleaning box 8, and then start the radiator 7 to air dry the liquid inside the equipment through the ventilation holes. Then, place various samples in different storage boxes 6 according to the actual situation, and then write the names of different samples on the surface of the sticky note block 10. Then, slide the sticky note block 10 into the inside of the fixing block 9, which can improve the speed of staff finding samples. The above is the complete working principle of this utility.

[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sample introduction mechanism for a liquid chromatography-mass spectrometry (LC-MS) instrument, comprising a sample introduction chamber (1), characterized in that: The sample box (1) is hinged to the upper end with a sample cover (2), and the sample cover (2) has a handle at the upper end. The sample box (1) has a cleaning groove (3) at the upper end, and a water pump (4) is installed at the lower end of the cleaning groove (3). The sample box (1) has a storage groove (5) at the lower end, and there are three sets of storage grooves (5). A storage box (6) is slidably inserted inside the storage groove (5). A radiator (7) is installed on one end surface of the sample box (1). A cleaning box (8) is slidably inserted at the lower end of the sample box (1). A fixing block (9) is fixed at one side of one end of the storage box (6), and a sticky note block (10) is slidably inserted inside the fixing block (9).

2. The sample introduction mechanism of a liquid chromatography-mass spectrometry instrument according to claim 1, characterized in that: The lower end of the sample inlet box (1) is provided with an anti-slip pad.

3. The sample introduction mechanism of a liquid chromatography-mass spectrometry instrument according to claim 1, characterized in that: Magnets are provided on the surface of the lower end of the sample cover (2) and the upper end of the sample box (1) at corresponding positions.

4. The sample introduction mechanism of a liquid chromatography-mass spectrometry instrument according to claim 1, characterized in that: The bottom surface of the storage slot (5) and the bottom surface of the storage box (6) are evenly provided with filter holes, and the positions of the two sets of filter holes are corresponding.

5. The sample introduction mechanism of a liquid chromatography-mass spectrometry instrument according to claim 1, characterized in that: The inner wall of the sample inlet box (1) is provided with ventilation holes, and the position of the ventilation holes corresponds to the position of the heat sink (7).

6. The sample introduction mechanism of a liquid chromatography-mass spectrometry instrument according to claim 1, characterized in that: Both the storage box (6) and the cleaning box (8) have handles on one end of their surfaces.

7. The sample introduction mechanism of a liquid chromatography-mass spectrometry instrument according to claim 1, characterized in that: One end of the note block (10) is provided with a T-shaped block, and the T-shaped block is attached to the inner wall of the fixing block (9).

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