Liquid storage device of liquid chromatograph

Abstract

The utility model belongs to the technical field of analytical chemistry, and particularly relates to a liquid storage device of a liquid chromatograph, which comprises a storage tank body, a connecting seat is mounted on the storage tank body, the top end of the connecting seat is fixedly connected with a connecting port, the top of a fixing sleeve is rotatably connected with a rotating ring, and the rotating ring is fixedly connected with the connecting port. The fixing sleeve is fixedly connected with a plurality of communicating pipes communicating with the storage tank body, the outer wall of the rotating ring is in threaded connection with a connector, and the connector is fixedly connected with liquid conveying pipes corresponding to the communicating pipes. The rotating ring and the connector are installed and supported through the fixing sleeve, the position of the infusion tube can correspond to all the communicating pipes, then the communicating pipes correspond to all the cavities divided by the partition plates, and therefore the device can be used for fixing the infusion tube after the infusion tube is communicated with a certain communicating pipe. When the mobile phase in the other cavities is added, the mobile phase in the cavity which is being extracted cannot be influenced, so that a worker can continuously take the mobile phase.

Description

Technical Field

[0001] The utility model belongs to the technical field of analytical chemistry, and in particular relates to a liquid storage device for a liquid chromatograph. Background Art

[0002] The liquid storage device of the liquid chromatograph is an important component of the liquid chromatograph, which is mainly used to store mobile phase solvents. When the mobile phase is about to be exhausted during use, the mobile phase needs to be shaken with a sinker after adding the mobile phase to expel bubbles that may be introduced. When the liquid chromatograph extracts the mobile phase, the bubbles generated by the addition of the mobile phase cannot be directly discharged, or the generation of bubbles cannot be directly avoided, which makes it inconvenient for the device to continuously extract the mobile phase when adding the mobile phase. It is necessary to stop the extraction of the mobile phase to expel the bubbles before extraction, which affects the staff's continuous extraction of the mobile phase. Utility Model Content

[0003] The utility model provides a liquid storage device for a liquid chromatograph, which has the characteristic of solving the problem that bubbles generated by adding a mobile phase are not conducive to the continuous extraction of the mobile phase by staff.

[0004] The utility model provides the following technical solution: it includes a storage tank body, a connecting seat is installed on the storage tank body, the top of the connecting seat is fixedly connected to a connecting port, the connecting port is fixedly connected to a fixing sleeve, the top of the fixing sleeve is rotatably connected to a rotating ring, the fixing sleeve is fixedly connected to a plurality of connecting pipes connected to the storage tank body, the outer wall of the rotating ring is threadedly connected to a connecting head, the connecting head is fixedly connected to an infusion tube corresponding to the plurality of connecting pipes, the bottom of the storage tank body is detachably connected to a mounting base, the inner wall of the mounting base is fixedly connected to a partition plate for dividing the inner cavity of the storage tank body, the bottom of the connecting pipe is located in the inner cavity of the mounting base, and a plurality of liquid inlets are installed on the storage tank body.

[0005] Wherein, a sealing groove matching one end of the partition plate is opened on the inner wall of the storage tank, and the sealing groove is slidably connected to the one end of the partition plate.

[0006] The outer wall of the top of the fixed sleeve is provided with a rotation groove, the inner wall of the rotation groove is rotatably connected to a rotating ring, the inner wall of the rotation groove is fixedly connected to a limiting ring, and the inner wall of the rotating ring is provided with an annular groove matching the limiting ring.

[0007] Wherein, the rotating ring and the outer wall of the connecting head are fixedly connected with a plurality of lower fixing blocks, and the lower fixing blocks are provided with corresponding docking holes.

[0008] The outer wall of the connector is slidably connected to a slip ring, the outer wall of the slip ring is fixedly connected to an upper fixed block corresponding to the lower fixed block, and the bottom end of the upper fixed block is fixedly connected to a plug rod matching the docking hole.

[0009] Wherein, the storage tank body is connected to the liquid inlet, and each of the liquid inlets is located between two of the partition plates.

[0010] Wherein, a sealing gasket is provided at the connection between the connecting tube and the infusion tube, and the connecting tube corresponds to the infusion tube.

[0011] The beneficial effect of the utility model is that the rotating ring and the connecting head are installed and supported by the fixed sleeve, so that the position of the infusion tube can correspond to each connecting tube, and then the connecting tube corresponds to each cavity separated by the partition plate, so that after the infusion tube is connected to a certain connecting tube, the device can add mobile phase to the remaining cavities without affecting the mobile phase in the cavity being extracted, which is beneficial for the staff to continuously take out the mobile phase.

[0012] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the storage tank in the present utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the mounting base in the present utility model;

[0017] Figure 5 For this utility model Figure 2 A is an enlarged schematic diagram.

[0018] In the figure: 1. Storage tank body; 11. Mounting base; 12. Partition plate; 121. Sealing groove; 2. Connecting seat; 21. Connecting port; 22. Fixing sleeve; 221. Rotating groove; 222. Limiting ring; 23. Connecting pipe; 24. Rotating ring; 241. Annular groove; 25. Lower fixing block; 251. Docking hole; 26. Liquid inlet; 3. Connector; 31. Infusion tube; 32. Slip ring; 33. Upper fixing block; 34. Insert rod. DETAILED DESCRIPTION

[0019] See also Figures 1-4The utility model provides the following technical solutions: it includes a storage tank body 1, a connecting seat 2 is installed on the storage tank body 1, the top of the connecting seat 2 is fixedly connected to a connecting port 21, the connecting port 21 is fixedly connected to a fixing sleeve 22, the top of the fixing sleeve 22 is rotatably connected to a rotating ring 24, the fixing sleeve 22 is fixedly connected to a plurality of connecting pipes 23 connected to the storage tank body 1, the outer wall of the rotating ring 24 is threadedly connected to a connecting head 3, and the connecting head 3 is fixedly connected to a plurality of infusion tubes 31 corresponding to the plurality of connecting pipes 23, the bottom of the storage tank body 1 is detachably connected to a mounting base 11, the inner wall of the mounting base 11 is fixedly connected to a partition plate 12 for dividing the inner cavity of the storage tank body 1, the bottom of the connecting pipe 23 is in the inner cavity of the mounting base 11, and a plurality of liquid inlets 26 are installed on the storage tank body 1.

[0020] In this embodiment, the storage tank body 1 is a carrier of the carrying device, and the connection port 21 is connected by the connection seat 2 installed on the storage tank body 1, so that when the device is normally storing the mobile phase, the connection port 21 can be closed, so that the device can store the mobile phase. When the mobile phase is extracted and used, the fixing sleeve 22 can be installed on the connection port 21, and the connecting pipe 23 fixedly connected to the fixing sleeve 22 can support the four connecting pipes 23, so that the bottom of the connecting pipe 23 is connected to the mounting base 11 installed at the bottom of the storage tank body 1. The mounting base 1 After 1 is installed at the bottom of the storage tank body 1, the several partition plates 12 fixedly connected to the inner wall of the installation base 11 can separate the inner cavity of the storage tank body 1, so that the inner cavity of the storage tank body 1 is divided into four equal cavities, so that when the mobile phase is stored in the storage tank body 1, the mobile phase can be divided into four parts, so that the four connecting pipes 23 are respectively connected to the flow of the four parts, so that the mobile phase of each part can be extracted and used. The rotating ring 24 rotatably connected to the top of the fixing sleeve 22 can be threadedly connected to the connector 3, and the connector 3 is threadedly connected to the rotating ring 24. After the ring 24 is on, the ring 24 can be rotated at the top position of the fixed sleeve 22 by rotating it, so that the connector 3 can be rotated synchronously, so that the infusion tube 31 fixedly connected to the top of the connector 3 can be connected with each connecting pipe 23 when the connector 3 is rotated. When it is connected with a certain connecting pipe 23, the circulating phase in the cavity corresponding to the connecting pipe 23 can be extracted. After the extraction is completed, the connection position of the infusion tube 31 and the connecting pipe 23 can be adjusted by directly rotating the connector 3, so that the staff can continue to take the mobile phase. The liquid inlet 26 corresponding to the cavity after use can be opened, so that the staff can add new mobile phase to the cavity at this time, avoiding the generation of bubbles after the mobile phase is added when replenishing the mobile phase, which affects the normal use of the mobile phase. The device can add mobile phase to the remaining cavities after the infusion tube 31 is connected to a certain connecting tube 23 without affecting the mobile phase in the cavity being extracted, which is beneficial for the staff to take the mobile phase. At the same time, when the mobile phase is added to the remaining cavities, it can be stirred to remove bubbles without affecting the taking of the mobile phase.

[0021] A sealing groove 121 is provided on the inner wall of the storage tank body 1 to match one end of the partition plate 12, and the sealing groove 121 is slidably connected to one end of the partition plate 12; the sealing groove 121 provided on the inner wall of the storage tank body 1 is used to allow the partition plate 12 to be inserted into the inner wall of the storage tank body 1 when the mounting base 11 is installed at the bottom position of the storage tank body 1, and the outer end of the partition plate 12 is wrapped by the sealing groove 121, so that the partition plate 12 ensures the function of separating the inner cavity of the storage tank body 1.

[0022] A rotation groove 221 is provided on the outer wall of the top of the fixed sleeve 22, and a rotating ring 24 is rotatably connected to the inner wall of the rotation groove 221. A limiting ring 222 is fixedly connected to the inner wall of the rotation groove 221, and an annular groove 241 matching the limiting ring 222 is provided on the inner wall of the rotating ring 24; the rotation groove 221 provided on the outer wall of the top of the fixed sleeve 22 is used to install the rotating ring 24, and the limiting ring 222 fixedly connected to the outer wall of the rotation groove 221 can be limited to the inner wall of the annular groove 241, so that the rotating ring 24 can be prevented from separating from the rotation groove 221 while rotating on the inner wall of the rotation groove 221.

[0023] The outer walls of the rotating ring 24 and the connector 3 are fixedly connected with several lower fixed blocks 25, and corresponding docking holes 251 are opened on the lower fixed blocks 25; the several lower fixed blocks 25 fixedly connected to the outer walls of the rotating ring 24 and the connector 3 are used to enable the upper and lower fixed blocks 25 to correspond to each other after the rotating ring 24 and the connector 3 are connected, so that the docking holes 251 correspond to each other, and the connector 3 and the rotating ring 24 can be limited and fixed by limiting the upper and lower docking holes 251, ensuring that the connector 3 is threadedly connected to the rotating ring 24, the position is limited, and the sealing of the connection between the connecting tube 23 and the infusion tube 31 is ensured.

[0024] The outer wall of the connector 3 is slidably connected to a slip ring 32, and the outer wall of the slip ring 32 is fixedly connected to an upper fixed block 33 corresponding to the lower fixed block 25, and the bottom end of the upper fixed block 33 is fixedly connected to an insertion rod 34 matching the docking hole 251; when the slip ring 32 slidably connected to the outer wall of the connector 3 can correspond up and down to the lower fixed block 25, the slip ring 32 can move downward, so that the upper fixed block 33 fixedly connected to the outer wall of the slip ring 32 can move downward synchronously, so that the insertion rod 34 fixedly connected to the bottom end of the upper fixed block 33 can be inserted into the docking hole 251, ensuring the stability of the connector 3 after being connected to the rotating ring 24.

[0025] The storage tank body 1 is connected to the liquid inlet 26, and each liquid inlet 26 is located between two partition plates 12; the storage tank body 1 is connected to the liquid inlet 26, so that the staff can add supplementary mobile phase to each cavity separated in the storage tank body 1 through the liquid inlet 26.

[0026] A sealing gasket is provided at the connection between the connecting tube 23 and the infusion tube 31, and the connecting tube 23 corresponds to the infusion tube 31; the sealing gasket provided at the connection between the connecting tube 23 and the infusion tube 31 can ensure the sealing effect of the connection between the connecting head 3 and the infusion tube 31 after the infusion tube 31 corresponds to the rotating ring 24, thereby ensuring the sealing of the pipeline through which the mobile phase flows when the mobile phase is extracted.

[0027] The working principle and usage process of the utility model are as follows: by rotating the rotating ring 24 to the top position of the fixed sleeve 22, the connecting head 3 is installed on the rotating ring 24, so that the position of the infusion tube 31 can be adjusted by rotating the rotating ring 24, so that the infusion tube 31 can correspond to each connecting tube 23, so that the four connecting tubes 23 are respectively connected to the flow of the four parts of the inner cavity of the storage tank body 1 separated by the partition plate 12. When the infusion tube 31 is connected to a certain connecting tube 23, the circulating phase in the cavity corresponding to the connecting tube 23 can be extracted. After the extraction is completed, the connecting head 3 can be directly rotated to adjust the connection position of the infusion tube 31 and the connecting tube 23, thereby facilitating the staff to continue to take the mobile phase. At the same time, the liquid inlet 26 corresponding to the cavity after taking can be opened, so that the staff can add new mobile phase to the cavity at this time, avoiding the generation of bubbles after the mobile phase is added when replenishing the mobile phase, which affects the normal use of the mobile phase.

Claims

1. A liquid storage device for a liquid chromatograph, comprising a storage tank (1), characterized in that: The storage tank body (1) is provided with a connecting seat (2), the top of the connecting seat (2) is fixedly connected to a connecting port (21), the connecting port (21) is fixedly connected to a fixing sleeve (22), the top of the fixing sleeve (22) is rotatably connected to a rotating ring (24), the fixing sleeve (22) is fixedly connected to a plurality of connecting pipes (23) connected to the storage tank body (1), the outer wall of the rotating ring (24) is threadedly connected to a connecting head (3), the connecting head (3) is fixedly connected to a plurality of liquid infusion pipes (31) corresponding to the connecting pipes (23), the bottom of the storage tank body (1) is detachably connected to a mounting base (11), the inner wall of the mounting base (11) is fixedly connected to a partition plate (12) for separating the inner cavity of the storage tank body (1), the bottom of the connecting pipe (23) is located in the inner cavity of the mounting base (11), and the storage tank body (1) is provided with a plurality of liquid inlets (26).

2. A liquid chromatograph liquid storage device according to claim 1, characterized in that: The inner wall of the storage tank body (1) is provided with a sealing groove (121) matching one end of the partition plate (12), and the sealing groove (121) is slidably connected to one end of the partition plate (12).

3. The liquid storage device for liquid chromatography according to claim 1, characterized in that: A rotating groove (221) is provided on the outer wall of the top of the fixed sleeve (22); a rotating ring (24) is rotatably connected to the inner wall of the rotating groove (221); a limiting ring (222) is fixedly connected to the inner wall of the rotating groove (221); and an annular groove (241) matching the limiting ring (222) is provided on the inner wall of the rotating ring (24).

4. The liquid storage device for liquid chromatography according to claim 1, characterized in that: The outer walls of the rotating ring (24) and the connector (3) are both fixedly connected with a plurality of lower fixing blocks (25), and the lower fixing blocks (25) are provided with corresponding docking holes (251).

5. The liquid storage device for liquid chromatography according to claim 4, characterized in that: The outer wall of the connector (3) is slidably connected to a slip ring (32), the outer wall of the slip ring (32) is fixedly connected to an upper fixed block (33) corresponding to the lower fixed block (25), and the bottom end of the upper fixed block (33) is fixedly connected to an insertion rod (34) matching the docking hole (251).

6. The liquid storage device for liquid chromatography according to claim 1, characterized in that: The storage tank body (1) is connected to the liquid inlet (26), and each of the liquid inlets (26) is located between two of the partition plates (12).

7. The liquid storage device for liquid chromatography according to claim 1, characterized in that: A sealing gasket is provided at the connection between the connecting tube (23) and the infusion tube (31), and the connecting tube (23) corresponds to the infusion tube (31).

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