High performance liquid mobile phase preparation instrument

Abstract

The utility model discloses a high performance liquid phase mobile phase preparation instrument, which relates to the technical field of high performance liquid chromatography equipment, and comprises a machine body and a plurality of liquid phase bottles arranged at the top of the machine body, the bottoms of the plurality of liquid phase bottles are communicated with vertical pipes, the vertical pipes are arranged at the top of the machine body in a contact manner, and a plurality of collection bottles are arranged at the lower end of the inner wall of the machine body. An extraction pipe is communicated between the collection bottle and the liquid phase bottle, the upper end of the extraction pipe is sleeved with a control valve, the lower end of the extraction pipe is sleeved with a filtering device and a degassing device, a supporting plate is fixedly arranged on the outer wall of the machine body, the extraction pipe is fixedly arranged in the supporting plate in a penetrating mode, the control valve comprises a valve body and a valve rod, and the valve rod is rotationally arranged on the side portion of the valve body; the rod wall of the valve rod is sleeved with a torsional spring, and the two ends of the torsional spring are fixedly connected with the valve rod and the valve body respectively. According to the utility model, the extraction work of each liquid-phase mobile phase is independently switched, so that the mixed pollution of the mobile phase during preparation is avoided as much as possible, and the purity of the mobile phase during preparation is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high performance liquid chromatography equipment technical field, concretely relates to a high performance liquid mobile phase preparation instrument. BACKGROUND

[0002] In the daily quality detection of food and drug industries, it is necessary to extract and prepare liquid phase and mobile phase by means of chromatography equipment, for example, the patent document with the announcement number CN205449917U discloses a high performance liquid mobile phase preparation instrument, the equipment adopts control panel and pressure sensor, simplifies the operation process, makes the processing process automatic and continuous, the automatic processing process can make the proportion of mobile phase more accurate than manual configuration, the continuous processing process can reduce the possibility of cross contamination between different mobile phases, improve work efficiency and reduce time cost.

[0003] But the above-mentioned equipment in the preparation of mobile phase, multiple mobile phase switching extraction through the same filter and degassing pipeline, easy to cause the pollution of subsequent mobile phase, make the extraction precision of mobile phase reduce. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned problems existing in the prior art high performance liquid mobile phase preparation instrument, the utility model is provided.

[0005] Therefore, the utility model aims at providing a high performance liquid mobile phase preparation instrument, which solves the problem that multiple mobile phase switching extraction through the same filter and degassing pipeline easily causes pollution of subsequent mobile phase.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A high performance liquid mobile phase preparation instrument, comprising a machine body and a plurality of liquid phase bottles arranged on the top of the machine body, a vertical pipe is arranged in communication with the bottom of each of the plurality of liquid phase bottles, the vertical pipe is arranged on the top of the machine body, a plurality of collection bottles are arranged on the inner wall of the machine body, an extraction pipe is arranged in communication between the collection bottles and the liquid phase bottles, a control valve is arranged on the upper end of the extraction pipe, a filter device and a degassing device are arranged on the lower end of the extraction pipe;

[0008] A support plate is fixedly arranged on the outer wall of the machine body, and the extraction pipe is fixedly arranged in the support plate;

[0009] The control valve comprises a valve body and a valve rod, the valve rod is rotatably arranged on the side of the valve body, a torsional spring is arranged on the rod wall of the valve rod, and the two ends of the torsional spring are fixedly connected with the valve rod and the valve body;

[0010] A driving extraction mechanism for opening and closing the valve body is arranged between the plurality of valve rods and the support plate.

[0011] Preferably, the driving extraction mechanism comprises a vertical rod, the vertical rod is rotationally arranged in the support plate, a top of the vertical rod is fixedly provided with a rotating plate, a top of the rotating plate is fixedly provided with an arc-shaped bevel gear, a plurality of valve rods are fixedly provided with a driving bevel gear at one end, and the arc-shaped bevel gear is arranged in cooperation with the driving bevel gear.

[0012] Preferably, a bottom end of the vertical rod is fixedly sleeved with a limiting bevel gear, an outer portion of the limiting bevel gear is sleeved with a limiting gear ring, the limiting gear ring is fixedly arranged at a bottom of the support plate, a bottom of the limiting bevel gear is fixedly provided with a sleeve, the sleeve is sleeved at an outer portion of the vertical rod, an outer wall of the sleeve is provided with two symmetrically arranged sliding holes, a sliding rod is slidingly arranged in the sliding hole, the sliding rod is fixedly connected with the vertical rod, and a spring is fixedly arranged between the sliding rod and the inner wall of the sliding hole.

[0013] Preferably, the vertical pipe is a hard plastic pipe.

[0014] Further, an inner portion of the support plate is provided with a through hole matched with the extraction pipe.

[0015] Preferably, the extraction pipe is a transparent flexible pipe.

[0016] In the above technical solution, the technical effects and advantages of the utility model are provided.

[0017] The utility model discloses a liquid phase bottle, extraction pipe, control valve, support plate, vertical rod, rotating plate, driving bevel gear and driving bevel gear are arranged, and every kind of liquid phase flow extraction work is independently switched, and the impurity of flow phase in preparation is avoided as far as possible, and the purity of flow phase in preparation is improved.

[0018] The utility model discloses a vertical rod, limiting bevel gear, limiting gear ring, sliding rod, spring and sliding hole can fix the position of driving bevel gear, guarantee the stability of driving bevel gear and driving bevel gear cooperation, and the flow extraction of flow phase is completed by controlling the opening and closing of the control valve of corresponding position. ACCURATE DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment or prior art of the present application, the drawings needed in the embodiment will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0020] Figure 1 It is the structural schematic diagram of the utility model;

[0021] Figure 2 It is the structural schematic diagram of the utility model; Figure 1 It is the enlarged schematic diagram of A part of the utility model;

[0022] Figure 3 It is a top view structural schematic diagram of the rotating plate and the arc-shaped bevel gear of the utility model.

[0023] Mark explanation:

[0024] 1, machine body; 2, liquid phase bottle; 3, vertical pipe; 4, collection bottle; 5, extraction pipe; 6, filtering device; 7, degassing device; 8, support plate; 9, valve body; 10, valve rod; 11, torsional spring; 12, vertical rod; 13, rotating plate; 14, arc-shaped bevel gear; 15, transmission bevel gear; 16, limiting circular gear; 17, limiting gear ring; 18, sleeve; 19, sliding rod; 20, spring. Specific embodiments

[0025] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below with the accompanying drawings.

[0026] The utility model discloses a kind of high performance liquid phase mobile phase preparation instrument.

[0027] The utility model provides a kind of high performance liquid phase mobile phase preparation instrument as Figures 1-3 As shown in the figure, including machine body 1 and multiple liquid phase bottles 2 in machine body 1 top, the bottom of multiple liquid phase bottles 2 is communicated with vertical pipe 3, vertical pipe 3 is contacted with the top of machine body 1, vertical pipe 3 is hard plastic pipe, the inner wall lower end of machine body 1 is equipped with multiple collection bottles 4, and extraction pipe 5 is communicated between collection bottle 4 and liquid phase bottle 2, and extraction pipe 5 is transparent hose, and the upper end of extraction pipe 5 is equipped with control valve, and the lower end of extraction pipe 5 is equipped with filtering device 6 and degassing device 7;

[0028] The outer wall of machine body 1 is fixedly provided with support plate 8, and extraction pipe 5 is fixedly arranged in support plate 8, and a through hole matched with extraction pipe 5 is formed in the inside of support plate 8.

[0029] The control valve includes valve body 9 and valve rod 10, and the valve rod 10 is rotatably arranged on the side of valve body 9, and the rod wall of valve rod 10 is sleeved with torsional spring 11, and the two ends of torsional spring 11 are fixedly connected with valve rod 10 and valve body 9 respectively.

[0030] Multiple valve rods 10 and support plate 8 are provided with a driving extraction mechanism for opening and closing valve body 9, and the driving extraction mechanism includes vertical rod 12, and the vertical rod 12 is rotatably arranged in support plate 8, and the top of vertical rod 12 is fixedly provided with rotating plate 13, and the top of rotating plate 13 is fixedly provided with arc-shaped bevel gear 14, and multiple valve rods 10 are fixedly provided with transmission bevel gear 15 at one end close to each other, and arc-shaped bevel gear 14 is matched with transmission bevel gear 15.

[0031] To ensure stable liquid flow inside the control valve by fixing the position of the arc-shaped bevel rack 14 when the control valve is opened and closed by the interaction of the arc-shaped bevel rack 14 and the transmission bevel gear 15, such as... Figure 2 As shown, a limiting spur gear 16 is fixedly sleeved at the lower end of the vertical rod 12, and a limiting gear ring 17 is sleeved on the outside of the limiting spur gear 16. The limiting gear ring 17 is fixedly installed at the bottom of the support plate 8. A sleeve 18 is fixedly installed at the bottom of the limiting spur gear 16. The sleeve 18 is sleeved on the outside of the vertical rod 12. Two symmetrically arranged sliding holes are opened on the outer wall of the sleeve 18. A sliding rod 19 slides through the sliding holes. The sliding rod 19 is fixedly connected to the vertical rod 12. A spring 20 is fixedly installed between the sliding rod 19 and the inner wall of the sliding hole.

[0032] Working principle: Multiple liquid phase bottles 2 at the top of the machine body 1 are connected to the extraction tube 5 below through the bottom vertical tube 3. The upper end of the extraction tube 5 is fitted with a control valve consisting of a valve body 9 and a valve stem 10. A torsion spring 11 is fitted on the rod wall of the valve stem 10. The lower end is connected to the filter device 6 and the degassing device 7 in sequence. The extraction tube 5 passes through the support plate 8 fixed to the outer wall of the machine body.

[0033] In the driving extraction mechanism, the top of the rotating vertical rod 12 inside the support plate 8 is fixed with a rotating plate 13. The rotating plate 13 is provided with an arc-shaped bevel rack 14. Each valve rod 10 is fixed with a transmission bevel gear 15 near one end of the support plate. When the arc-shaped bevel rack 14 rotates, it meshes with the transmission bevel gear 15, driving the valve rod 10 to rotate and compress the torsion spring 11 to open the valve body 9, so that the mobile phase in the liquid phase bottle 2 flows into the extraction tube 5 through the vertical pipe. After the particulate impurities are removed by the filtration device and the dissolved gas is removed by the degassing device, it flows into the collection bottle 4.

[0034] The limiting spherical gear 16 at the lower end of the vertical rod 12 meshes with the limiting gear ring 17 at the bottom of the support plate for positioning. The slide rod 19 in the sliding hole of the bottom sleeve 18 is connected to the inner wall of the sliding hole through the spring 20, which can fix the position of the arc-shaped rack 14, ensuring that the arc-shaped rack 14 meshes with or separates from the transmission bevel gear 15 to fix the position, ensuring stable opening and closing of the control valve. When switching the mobile phase, the torsion spring 11 resets and closes the current valve body 9, and the arc-shaped bevel rack 14 meshes with the next transmission bevel gear 15 to open the corresponding channel. Each mobile phase independently uses the extraction tube 6, the filter device 6, and the degassing device 7 to avoid cross-contamination.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high performance liquid mobile phase preparation instrument, comprising a machine body (1) and a plurality of mobile phase bottles (2) arranged on the top of the machine body (1), characterized in that, The bottom of the plurality of liquid phase bottles (2) is communicated with a vertical pipe (3), the vertical pipe (3) is contacted with the top of the machine body (1), the inner wall of the lower end of the machine body (1) is provided with a plurality of collection bottles (4), the collection bottle (4) and the liquid phase bottle (2) are communicated with an extraction pipe (5), the upper end of the extraction pipe (5) is sleeved with a control valve, the lower end of the extraction pipe (5) is sleeved with a filter device (6) and a degassing device (7); The outer wall of the machine body (1) is fixedly provided with a support plate (8), the extraction pipe (5) is fixedly penetrated in the support plate (8); The control valve comprises a valve body (9) and a valve rod (10), the valve rod (10) is rotatably arranged on the side of the valve body (9), the rod wall of the valve rod (10) is sleeved with a torsion spring (11), and the two ends of the torsion spring (11) are fixedly connected with the valve rod (10) and the valve body (9) respectively; A plurality of valve rods (10) and the support plate (8) are provided with a driving extraction mechanism for opening and closing the valve body (9).

2. The high performance liquid mobile phase preparation instrument of claim 1, wherein, The driving extraction mechanism comprises a vertical rod (12), the vertical rod (12) is rotatably arranged in the support plate (8), the top of the vertical rod (12) is fixedly provided with a rotating plate (13), the top of the rotating plate (13) is fixedly provided with an arc-shaped bevel gear (14), a plurality of valve rods (10) are fixedly provided with a transmission bevel gear (15) at one end close to each other, and the arc-shaped bevel gear (14) and the transmission bevel gear (15) are matched.

3. The high performance liquid mobile phase preparation instrument of claim 2, wherein, The lower end of the vertical rod (12) is fixedly sleeved with a limit circular gear (16), the outer part of the limit circular gear (16) is sleeved with a limit gear ring (17), the limit gear ring (17) is fixedly arranged on the bottom of the support plate (8), the bottom of the limit circular gear (16) is fixedly provided with a sleeve pipe (18), the sleeve pipe (18) is sleeved on the outer part of the vertical rod (12), two symmetrical sliding holes are formed in the outer wall of the sleeve pipe (18), a sliding rod (19) is slidably penetrated in the sliding hole, the sliding rod (19) is fixedly connected with the vertical rod (12), and a spring (20) is fixedly arranged between the sliding rod (19) and the inner wall of the sliding hole.

4. The high performance liquid mobile phase preparation instrument of claim 1, wherein, The vertical pipe (3) is a hard plastic pipe.

5. The high performance liquid mobile phase preparation instrument of claim 1, wherein, The inner part of the support plate (8) is provided with a through hole matched with the extraction pipe (5).

6. The high performance liquid mobile phase preparation instrument of claim 1, wherein, The extraction pipe (5) is a transparent flexible pipe.

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