Uniform mixing mechanism of liquid chromatograph-mass spectrometer

Abstract

The utility model relates to the technical field of liquid chromatography-mass spectrometry, and discloses a mixing mechanism of a liquid chromatography-mass spectrometry, which comprises a mixing box, a top plate, a stirring motor and a sealing seat, the mixing box is integrally of a cylindrical structure, the lower part of the mixing box is provided with an inverted circular truncated cone-shaped material guide box, and the bottom of the material guide box is provided with a discharge port; an opening is formed in the upper part of the uniform mixing box, a top plate is mounted at the opening, and a feeding hole is formed in the top plate; the stirring motor is mounted at the upper part of the top plate, a stirring rod is arranged at the output end of the stirring motor, the stirring rod penetrates through the top plate and extends into the uniform mixing box, and an auxiliary rod is arranged on the side surface of the stirring rod; the sealing seat is arranged in the material guide box; according to the uniform mixing mechanism provided by the utility model, the stirring rod is driven by the stirring motor to fully stir materials in the uniform mixing box, so that the uniform mixing effect is achieved; and meanwhile, the sealing seat can move up and down to achieve a sealing or opening state and is used for managing the discharging process.

Description

Technical Field

[0001] This utility model relates to the field of liquid chromatography-mass spectrometry (LC-MS) technology, and more specifically, to a mixing mechanism for a LC-MS. Background Technology

[0002] When using a liquid chromatography-mass spectrometry (LC-MS) instrument, it is necessary to ensure that the material being tested is thoroughly stirred and mixed to guarantee the detection effect. Incomplete mixing can easily lead to inaccurate test results. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, this utility model provides a mixing mechanism for a liquid chromatography-mass spectrometry (LC-MS) instrument, which has the advantage of more precise operation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mixing mechanism for a liquid chromatography-mass spectrometry (LC-MS) instrument, comprising: a mixing chamber, a top plate, a stirring motor, and a sealing seat. The mixing chamber is generally cylindrical, with an inverted frustum-shaped guide box at the bottom, and a discharge port at the bottom of the guide box. The upper part of the mixing chamber is open, and a top plate is installed at the open, with a feeding port on the top plate. The stirring motor is mounted on the upper part of the top plate, and a stirring rod is provided at the output end of the stirring motor. The stirring rod passes through the top plate and extends into the mixing chamber, with an auxiliary rod provided on the side of the stirring rod. The sealing seat is located inside the guide box.

[0005] In a preferred embodiment of this invention, the stirring motor is positioned in the middle of the top plate, and the central axis of the stirring rod coincides with the central axis of the mixing chamber.

[0006] As a preferred embodiment of this utility model, the auxiliary rod is arranged horizontally, and several torsion bars are arranged side by side between the auxiliary rods; the two ends of the torsion bars are respectively connected to the auxiliary rods through a rotating shaft, and auxiliary blades are arranged on the side of the torsion bars; multiple sets of auxiliary rods are arranged in a ring array around the stirring rod.

[0007] As a preferred embodiment of this utility model, a support platform is provided in the discharge port, and the side of the support platform is fixed to the inner wall of the discharge port by a bracket; a sleeve is provided on the upper part of the support platform; a telescopic rod is provided on the lower part of the sealing seat, and the telescopic rod is connected to the sleeve and connected to the electric push rod in the sleeve.

[0008] As a preferred embodiment of this utility model, the upper part of the sealing seat is provided with a guide surface and the lower part is provided with a sealing surface; the guide surface is a conical curved surface, the sealing surface is a truncated rounded surface, and the sealing surface is in contact with the inner wall of the feed box.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: The mixing mechanism provided by this utility model uses a stirring motor to drive a stirring rod to fully stir the materials in the mixing box, thereby achieving a mixing effect; at the same time, the sealing seat can move up and down to achieve a sealing or opening state, which is used to manage the discharge process. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0011] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0012] Figure 3 This is a schematic diagram of the top plate and stirring motor assembly of this utility model;

[0013] Figure 4 This is a schematic diagram of the installation of the sealing seat of this utility model;

[0014] In the diagram: 1. Mixing box; 11. Feed box; 12. Discharge port; 13. Support platform; 14. Bracket; 15. Sleeve; 2. Top plate; 21. Feed port; 3. Stirring motor; 31. Stirring rod; 32. Auxiliary rod; 33. Torsion bar; 34. Auxiliary blade; 4. Sealing seat; 41. Guide surface; 42. Sealing surface; 43. Telescopic rod. Detailed Implementation

[0015] 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.

[0016] like Figures 1 to 4 As shown, this utility model provides a mixing mechanism for a liquid chromatography-mass spectrometry (LC-MS) instrument, comprising: a mixing chamber 1, a top plate 2, a stirring motor 3, and a sealing seat 4. The mixing chamber 1 is generally cylindrical, with an inverted frustum-shaped feed box 11 at the bottom, and a discharge port 12 at the bottom of the feed box 11. The mixing chamber 1 is open at the top, and the top plate 2 is installed at the open, with a feeding port 21 on the top plate 2. The stirring motor 3 is installed on the top plate 2, and a stirring rod 31 is provided at the output end of the stirring motor 3. The stirring rod 31 extends through the top plate 2 into the mixing chamber 1, and an auxiliary rod 32 is provided on the side of the stirring rod 31. The sealing seat 4 is located inside the feed box 11.

[0017] The material is added into the mixing chamber 1 through the feeding port 21 on the top plate 2. The stirring motor 3 on the top plate 2 drives the stirring rod 31 to rotate, thereby driving the auxiliary rod 32 to stir in the mixing chamber 1, so that the added material is fully mixed.

[0018] The stirring motor 3 is located in the middle of the top plate 2, and the central axis of the stirring rod 31 coincides with the central axis of the mixing box 1.

[0019] The stirring rod 31, located in the center, can evenly stir the surrounding environment through the auxiliary rod 32 on the side, avoiding dead corners and ensuring a uniform mixing effect.

[0020] The auxiliary rod 32 is arranged horizontally, and several torsion bars 33 are arranged side by side between the auxiliary rods 32; the two ends of the torsion bars 33 are respectively connected to the auxiliary rods 32 through a rotating shaft, and auxiliary blades 34 are arranged on the side of the torsion bars 33; the auxiliary rods 32 are arranged in a ring array around the stirring rod 31 in multiple groups.

[0021] The horizontal auxiliary rod 32 is connected to a rotatable torsion bar 33. When it rotates, the auxiliary blades 34 on the torsion bar 33 collide with the material. The rotation of the blades can further enhance the mixing effect of the material and improve the mixing efficiency.

[0022] The discharge port 12 is provided with a support platform 13, and the side of the support platform 13 is fixed to the inner wall of the discharge port 12 by a bracket 14; a sleeve 15 is provided on the upper part of the support platform 13; a telescopic rod 43 is provided on the lower part of the sealing seat 4, and the telescopic rod 43 is connected to the sleeve 15 and connected to the electric push rod in the sleeve 15.

[0023] The telescopic rod 43 is moved up and down by an electric push rod, thereby changing the height of the sealing seat 4 and adjusting its position to open or close the discharge port 12.

[0024] The sealing seat 4 has a guide surface 41 on the upper part and a sealing surface 42 on the lower part; the guide surface 41 is a conical curved surface, the sealing surface 42 is a rounded frustum, and the sealing surface 42 is in contact with the inner wall of the feed box 11.

[0025] The upper conical guide surface 41 allows the material to slide down along it when it is opened, from the edge of the guide surface 41, and finally out of the outlet 12; the lower frustum-shaped sealing surface 42 fits against the inner wall of the guide box 11 when it is sealed, thereby achieving a sealing effect.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0027] 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 mixing mechanism for a liquid chromatography-mass spectrometry (LC-MS) instrument, characterized in that, The system includes: a mixing box (1), a top plate (2), a stirring motor (3), and a sealing seat (4). The mixing box (1) is cylindrical in shape. A frustum-shaped guide box (11) is provided at the bottom of the mixing box (1). A discharge port (12) is provided at the bottom of the guide box (11). The mixing box (1) is open at the top. A top plate (2) is installed at the open. A feeding port (21) is provided on the top plate (2). The stirring motor (3) is installed on the top plate (2). A stirring rod (31) is provided at the output end of the stirring motor (3). The stirring rod (31) passes through the top plate (2) and extends into the mixing box (1). An auxiliary rod (32) is provided on the side of the stirring rod (31). The sealing seat (4) is located inside the guide box (11).

2. The mixing mechanism of a liquid chromatography-mass spectrometry (LC-MS) instrument according to claim 1, characterized in that: The stirring motor (3) is located in the middle of the top plate (2), and the central axis of the stirring rod (31) coincides with the central axis of the mixing box (1).

3. The mixing mechanism of a liquid chromatography-mass spectrometry (LC-MS) instrument according to claim 1, characterized in that: The auxiliary rod (32) is arranged horizontally, and several torsion bars (33) are arranged side by side between the auxiliary rods (32); the two ends of the torsion bars (33) are respectively connected to the auxiliary rods (32) through a rotating shaft, and auxiliary blades (34) are arranged on the side of the torsion bars (33); the auxiliary rods (32) are arranged in a ring array around the stirring rod (31) in multiple sets.

4. The mixing mechanism of a liquid chromatography-mass spectrometry (LC-MS) instrument according to claim 1, characterized in that: A support platform (13) is provided in the discharge port (12), and the side of the support platform (13) is fixed to the inner wall of the discharge port (12) by a bracket (14); a sleeve (15) is provided on the upper part of the support platform (13); a telescopic rod (43) is provided on the lower part of the sealing seat (4), and the telescopic rod (43) is connected to the sleeve (15) and connected to the electric push rod in the sleeve (15).

5. The mixing mechanism of a liquid chromatography-mass spectrometry (LC-MS) instrument according to claim 1, characterized in that: The sealing seat (4) has a guide surface (41) on the upper part and a sealing surface (42) on the lower part; the guide surface (41) is a conical curved surface, the sealing surface (42) is a truncated rounded surface, and the sealing surface (42) is in contact with the inner wall of the feed box (11).

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