CN219923007U - Liquid feeding mechanism and liquid feeding device - Google Patents
Liquid feeding mechanism and liquid feeding device Download PDFInfo
- Publication number
- CN219923007U CN219923007U CN202320312335.1U CN202320312335U CN219923007U CN 219923007 U CN219923007 U CN 219923007U CN 202320312335 U CN202320312335 U CN 202320312335U CN 219923007 U CN219923007 U CN 219923007U
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- China
- Prior art keywords
- liquid
- liquid adding
- linear reciprocating
- assembly
- lifting frame
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- 239000007788 liquid Substances 0.000 title claims abstract description 149
- 230000033001 locomotion Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000004458 analytical method Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004811 liquid chromatography Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to a liquid adding mechanism and a liquid adding device, and relates to the technical field of analysis liquid preparation, wherein the liquid adding mechanism comprises a liquid adding pipe group, a lifting frame and a linear reciprocating assembly, the lifting frame is connected between the liquid adding pipe group and the linear reciprocating assembly, the liquid outlet end of the liquid adding pipe group is fixed on the lifting frame, and the linear reciprocating assembly can drive the lifting frame to move up and down; the liquid adding device comprises a workbench and a liquid adding mechanism. The utility model has the advantage of reducing liquid splashing in the liquid adding process.
Description
Technical Field
The utility model relates to the technical field of analysis and liquid preparation, in particular to a liquid adding mechanism and a liquid adding device.
Background
Mobile phase is a key factor affecting liquid chromatography. An ideal liquid chromatography mobile phase solvent should have low viscosity, good compatibility with the detector, easy to obtain pure product and low toxicity characteristics. The mobile phase in high performance liquid chromatography is mainly water soluble agent, organic solvent or their mixture. Generally, the mixing of the solvents is carried out in a volume ratio (V/V) or a weight ratio (W/W).
The applicant filed's chinese patent with application number CN202222427894.5, introduced a portable liquid feeding device, including workstation and liquid feeding mechanism, liquid feeding mechanism includes support, mounting box and liquid feeding nest of tubes, and the support rotates to be connected in the workstation, and the mounting box is fixed in the support top, and the liquid feeding nest of tubes is connected in the mounting box, and the liquid feeding nest of tubes includes at least one liquid feeding pipe.
With respect to the above related art, the inventors found that liquid (i.e., various acids and lyes) splashes during the process of adding liquid.
Disclosure of Invention
In order to solve the problem that liquid splashes in the liquid adding process, the utility model provides a liquid adding mechanism and a liquid adding device.
In a first aspect, the present utility model provides a liquid adding mechanism, which adopts the following technical scheme:
the utility model provides a liquid feeding mechanism, includes liquid feeding nest of tubes, crane and straight line reciprocating motion subassembly, and the crane is connected between liquid feeding nest of tubes and straight line reciprocating motion subassembly, and the liquid outlet end of liquid feeding nest of tubes is fixed in the crane, and straight line reciprocating motion subassembly can drive the crane and reciprocate.
In a second aspect, the present utility model provides a liquid adding device, which adopts the following technical scheme:
a liquid adding device comprises a workbench and a liquid adding mechanism.
By adopting the technical scheme, the container is placed on the workbench and is positioned below the liquid adding pipe group, and the linear reciprocating movement assembly drives the lifting frame to move to the bottom during liquid adding, so that the liquid outlet end of the liquid adding pipe is close to the container or stretches into the container, the liquid outlet end is close to the bottom wall of the container, and splashing is reduced; along with the rising of the liquid level in the container, the linear reciprocating movement assembly drives the lifting frame to gradually rise, and at the moment, the liquid outlet end is kept at a relatively small distance from the liquid level in the container, so that liquid splashing is reduced. Thus, along with the increase of the liquid adding volume, the height of the liquid adding head of the liquid adding mechanism is adjusted, and the problem of liquid splashing in the liquid adding process is solved.
The utility model has the following beneficial technical effects:
1. with the increase of the liquid adding volume, the liquid splashing problem in the liquid adding process is improved by adjusting the height of the liquid adding head of the liquid adding mechanism;
2. after the reagent is added, the container can be directly removed, so that the convenience of liquid adding is improved.
Drawings
FIG. 1 is a schematic diagram of a mobile liquid feeding device according to a first embodiment of the present utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view showing a partial structure of a liquid feeding mechanism according to a first embodiment of the present utility model;
FIG. 4 is a cross-sectional view taken along the A-A plane in FIG. 2;
FIG. 5 is a schematic view of a portion of the structure from another perspective of FIG. 1;
fig. 6 is a schematic structural diagram of a mobile liquid adding device in the second embodiment of the utility model.
Reference numerals illustrate:
1. a work table; 2. a container; 3. a liquid adding mechanism; 31. a rotating assembly; 32. a bracket; 33. a mounting box; 34. a liquid adding tube group; 341. an outer tube; 342. an inner tube; 35. a baffle disc; 351. an outer aperture; 352. an inner bore; 36. a connecting shaft; 37. a motor; 38. a linear reciprocating assembly; 39. a lifting frame; 391. a first plate body; 392. a connecting rod; 393. and a second plate body.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-6.
The utility model discloses a liquid adding device.
Embodiment one:
referring to fig. 1 and 2, the liquid adding device includes a table 1 and a liquid adding mechanism 3, the liquid adding mechanism 3 is connected to the table 1, a container 2 is placed on the table 1, and the liquid adding mechanism 3 is used for adding liquid to the container 2.
Referring to fig. 3 and 4, the liquid charging mechanism 3 includes a mounting case 33 and a liquid charging tube set 34, the mounting case 33 being provided above the table 1, the liquid charging tube set 34 being connected to the mounting case 33, the liquid charging tube set 34 having at least one liquid charging tube. The liquid feeding tube group 34 includes a plurality of vertically arranged liquid feeding tubes connected to different kinds of liquid sources. When the solution is prepared, each liquid adding pipe corresponds to a container for containing the solution; each liquid corresponds to a liquid source, and different liquids are prevented from being polluted by each other through the pipeline. In order to conveniently control the liquid adding amount, the liquid adding pipe is connected with a liquid source through a syringe pump. The liquid adding pipe can be a hose, and in order to improve the service life of the liquid adding pipe, the liquid adding pipe can be made of organic glass. The mounting box 33 may have a rectangular structure with a hollow interior, and the rectangular structure may be surrounded by a bottom case and an upper cover, and the mounting box 33 may have other shapes.
The liquid adding mechanism 3 further comprises a baffle disc assembly, the baffle disc assembly comprises a baffle disc 35 and a motor 37, the baffle disc 35 is rotatably connected to the mounting box 33 and is abutted to the outlet of the liquid adding pipe, and the motor 37 is connected to the mounting box 33 and drives the baffle disc 35 to rotate; the baffle disc 35 is provided with a liquid outlet hole, and when the baffle disc 35 rotates, the liquid outlet hole can be aligned and communicated with the outlet of the liquid adding pipe of one liquid source. The baffle 35 can reduce the possibility of mixing between different acid solutions and/or alkali solutions and reduce the probability of mutual contamination between different acid solutions and/or alkali solutions.
The liquid adding pipes are arranged in groups, and each group of liquid adding pipes is provided with at least two pipe bodies; the liquid outlet holes are in one-to-one correspondence with the number of the pipe bodies of each group of liquid adding pipes, and a plurality of liquid outlet holes are arranged on the baffle disc 35 along the radial direction. The liquid adding pipe can be divided into an outer pipe 341 and an inner pipe 342, wherein the edge of one end of the outer pipe 341 close to the mounting box 33 is distributed in a ring shape, the center of one end of the inner pipe 342 close to the mounting box 33 is distributed in a ring shape, and the rings formed by the outer pipe 341 and the inner pipe 342 can be arranged in concentric circles. Each set of filling tubes has an outer tube 341 and an inner tube 342. The liquid outlet holes may be divided into an outer hole 351 and an inner hole 352, the outer hole 351 corresponds to the outer tube 341, and the inner hole 352 corresponds to the inner tube 342. By providing two holes in the baffle disc 35, more liquid adding pipes can be spatially arranged above the baffle disc 35, and finally only one liquid is added for 1 time.
In order to reduce the possibility of mixing between different liquids, the side of the baffle 35 close to the filling pipe is in contact with the outlet of the filling pipe and the contact position is sealed, and an elastic layer such as a rubber layer can be fixed on the inner side of the bottom wall of the baffle 35.
A connecting shaft 352 can be connected between the baffle disc 35 and the motor 37, the connecting shaft 352 is rotatably connected to the bottom wall of the mounting box 33, the baffle disc 35 and the connecting shaft 352 can be coaxially fixed, and the motor 37 is mounted on the upper portion of the connecting shaft 352 through a coupling. The connecting shaft 352 may be located at the center of the annularly distributed filling tube.
In order to increase the liquid adding position range of the liquid adding mechanism 3, the liquid adding mechanism 3 further comprises a bracket 32 and a rotating assembly 31, the bracket 32 is connected to the mounting box 33 and the rotating assembly 31, and the rotating assembly 31 can drive the mounting box 33 to rotate through the bracket 32. The rotating assembly 31 comprises a motor and a gear set, and the bracket 32 is in transmission connection with the motor through the gear set. The support 32 may be a circular tube through which the filling tube may pass to connect with an external source of liquid from the bottom of the table 1. The bottom wall of the mounting box 33 is fixedly connected to the bracket 32 by means including, but not limited to, bolting, flanged connection, etc. The motor may be fixed to the bottom of the table 1 by bolts.
Embodiment two:
referring to fig. 6, a liquid feeding device is different from the first embodiment in that the liquid feeding mechanism 3 includes a liquid feeding tube and a linear reciprocating assembly 38 for driving the liquid feeding tube to lift, a lifting frame 39 is connected between the linear reciprocating assembly 38 and the liquid feeding tube, a liquid outlet end of the liquid feeding tube is fixed on the lifting frame 39, and the linear reciprocating assembly 38 can drive the lifting frame 39 to move up and down.
The linear reciprocating assembly 38 comprises one of a linear motor, a motor and screw nut mechanism, a linear guide rail and an air cylinder, and the linear reciprocating assembly 38 can be of other structures as required, so long as the lifting frame 39 can be driven to move up and down. The linear reciprocating assembly 38 is mounted on the bracket 32, where the bracket 32 may be a square tube for convenience of installation, and the linear reciprocating assembly 38 employs a motor and a screw-nut mechanism, which may be fastened to the bracket 32 by bolts. In other implementations of embodiments of the utility model, the lead screw nut mechanism may also be mounted directly vertically on the rotating assembly 31.
The lifting frame 39 is composed of a first plate body 391, a second plate body 393 and a connecting rod 392, the first plate body 391 can be an L-shaped plate, one side of the L-shaped plate is vertically arranged and is fixed with a nut of a screw rod nut mechanism through a bolt, the other side of the L-shaped plate is horizontally arranged, the second plate body 393 is parallel to the horizontal part of the first plate body 391, the connecting rod 392 is fixed between the first plate body 391 and the second plate body 393, and the second plate body 393 can be located below the first plate body 391.
The liquid adding pipe sequentially passes through the horizontal part of the first plate 391 and the second plate 393, and the liquid outlet end of the liquid adding pipe is fixed on the second plate 393. The liquid adding pipe can be divided into an outer pipe 341 and an inner pipe 342, the second plate body 393 can be a circular plate, the outer pipe 341 is annularly distributed at the outer edge of the second plate body 393, the inner pipe 342 is annularly distributed near the center of the second plate body 393, and a circular ring formed by the outer pipe 341 and the inner pipe 342 in a surrounding mode can be arranged in a concentric circle.
Compared with the scheme of the first embodiment, the second embodiment has the advantages that the linear reciprocating movement assembly 38 drives the lifting frame 39 to move to the bottom during liquid filling, so that the liquid outlet end of the liquid filling pipe is close to the container 2 or stretches into the container 2, and the liquid outlet end is close to the bottom wall of the container 2, thereby reducing splashing; along with the rising of the liquid level in the container 2, the linear reciprocating movement assembly 38 drives the lifting frame 39 to gradually rise, and at the moment, the liquid outlet end is kept at a relatively small distance from the liquid level in the container 2, so that liquid splashing is reduced. Thus, the height of the liquid adding head of the liquid adding mechanism 3 is adjusted along with the increase of the liquid adding volume, and the problem of liquid splashing in the liquid adding process is solved.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (9)
1. The utility model provides a liquid feeding mechanism which characterized in that: the device comprises a liquid adding pipe group (34), a lifting frame (39) and a linear reciprocating movement assembly (38), wherein the lifting frame (39) is connected between the liquid adding pipe group (34) and the linear reciprocating movement assembly (38), the liquid outlet end of the liquid adding pipe group (34) is fixed on the lifting frame (39), and the linear reciprocating movement assembly (38) can drive the lifting frame (39) to move up and down.
2. The charging mechanism of claim 1, wherein: the linear reciprocating assembly (38) comprises a linear motor, a motor and screw nut mechanism, a linear guide rail and an air cylinder.
3. The charging mechanism according to claim 1 or 2, wherein: the liquid adding tube set (34) comprises at least one liquid adding tube.
4. The charging mechanism according to claim 1 or 2, wherein: the liquid adding pipe group (34) comprises a plurality of vertically distributed liquid adding pipes which are connected with different liquid sources.
5. The charging mechanism of claim 4, wherein: the liquid adding pipes are arranged in groups, and each group of liquid adding pipes is provided with at least two pipe bodies.
6. The charging mechanism of claim 1, 2 or 5, wherein: the liquid adding mechanism (3) further comprises a rotating assembly (31), and the rotating assembly (31) is connected with the linear reciprocating assembly (38) and can drive the linear reciprocating assembly (38) to rotate.
7. The charging mechanism of claim 6, wherein: the liquid adding mechanism (3) further comprises a bracket (32), the bracket (32) is connected between the rotating assembly (31) and the linear reciprocating assembly (38), and the linear reciprocating assembly (38) is fixedly arranged on the bracket (32).
8. The charging mechanism of claim 7, wherein: the rotating assembly (31) comprises a motor and a gear set, and the bracket (32) is in transmission connection with the motor through the gear set.
9. The utility model provides a liquid feeding device, includes workstation (1), its characterized in that: further comprising a filling mechanism (3) according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320312335.1U CN219923007U (en) | 2023-02-24 | 2023-02-24 | Liquid feeding mechanism and liquid feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320312335.1U CN219923007U (en) | 2023-02-24 | 2023-02-24 | Liquid feeding mechanism and liquid feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219923007U true CN219923007U (en) | 2023-10-31 |
Family
ID=88488608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320312335.1U Active CN219923007U (en) | 2023-02-24 | 2023-02-24 | Liquid feeding mechanism and liquid feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219923007U (en) |
-
2023
- 2023-02-24 CN CN202320312335.1U patent/CN219923007U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240410 Address after: 200131, 1st Floor, Building 3, No. 201 Huashen Road, Pudong New Area, Shanghai Patentee after: Shanghai Boteng Zhihui Biopharmaceutical Co.,Ltd. Country or region after: China Address before: 401121 Building 13, No. 106, West Section of Jinkai Avenue, Dazhulin Street, Liangjiang New District, Chongqing (No. 1, 14th floor) Patentee before: Chongqing Yaoling Technology Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |