CN108940400B - A mount for filtering sampling liquid in batches - Google Patents
A mount for filtering sampling liquid in batches Download PDFInfo
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- CN108940400B CN108940400B CN201810839032.9A CN201810839032A CN108940400B CN 108940400 B CN108940400 B CN 108940400B CN 201810839032 A CN201810839032 A CN 201810839032A CN 108940400 B CN108940400 B CN 108940400B
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- groove
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/147—Microfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/06—Test-tube stands; Test-tube holders
Abstract
The invention discloses a fixing frame for filtering sample liquid in batches, which belongs to the field of laboratory instruments, and comprises a hollow box body with an opening at one end, and further comprises a first fixing frame and a second fixing frame, wherein the first fixing frame and the second fixing frame are sequentially arranged in the box body from bottom to top: the device comprises a sample injection bottle fixing device, a height adjusting mechanism, an injector fixing device and a pressing liquid injection device; the sample injection bottle fixing device comprises a sample injection bottle fixing plate and a limiting device; the sample feeding bottle fixing plate is provided with a first accommodating groove matched with the sample feeding bottle; the limiting device comprises a groove, an elastic part and a limiting bead which are arranged on the inner side wall of the box body, one end of the elastic part is fixed with the bottom of the groove, the other end of the elastic part is fixed with the limiting bead, the diameter of the limiting bead is matched with the groove diameter of the groove, and correspondingly, a limiting groove matched with the limiting bead is arranged at the side end of the sample injection bottle fixing plate. The method has the advantages of simple operation and capability of greatly improving the experimental efficiency.
Description
Technical Field
The invention belongs to the field of laboratory instruments, and particularly relates to a fixing frame for filtering sample liquid in batches.
Background
In the process of analyzing and detecting a sample solution by using a high performance liquid chromatograph, because a solvent or a sample to be detected contains partial impurities or insoluble substances, if the solvent or the sample to be detected is not filtered by a microporous filter membrane and is injected into an instrument, the impurities or the insoluble substances are blocked by a sieve plate at the inlet end of a high performance liquid chromatograph column, and finally, blockage is formed, so that the system pressure in the high performance liquid chromatograph is increased, and the chromatographic peak obtained by detection is deformed.
Therefore, the experimenter usually uses the injector to extract the corresponding dosage of the sample solution to be tested, and sends the sample solution to be tested into the sample feeding bottle for temporary storage after the sample solution to be tested is filtered by the microporous filter membrane. However, problems also follow with the above-described methods in general. When the number of samples to be detected is too large, the above process is too complicated to improve the experimental efficiency. Therefore, if the experimental time before the sample analysis work is shortened to improve the experimental efficiency, the technical staff needs to solve the problem urgently.
Disclosure of Invention
The invention provides a fixing frame for filtering sample liquid in batches, which has the advantages of simple operation and greatly improved experiment efficiency.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a mount for filtering sampling liquid in batches, includes cavity and one end open-ended box to still include by supreme setting gradually inside the box down: the device comprises a sample injection bottle fixing device, a height adjusting mechanism, an injector fixing device and a pressing liquid injection device, wherein the height adjusting mechanism is used for fixing a filter membrane and adjusting the height position of the filter membrane; the sample injection bottle fixing device comprises a sample injection bottle fixing plate arranged in a sliding manner with the inner side wall of the box body and a limiting device for preventing the sample injection bottle fixing plate from accidentally sliding; the sample feeding bottle fixing plate is provided with a first accommodating groove matched with the sample feeding bottle; stop device is including setting up in recess, elastic component and the spacing pearl of box inside wall, the one end and the recess tank bottom of elastic component are fixed mutually, and the other end is fixed mutually with spacing pearl, the diameter of spacing pearl and the groove footpath looks adaptation of recess, correspondingly, the side of advance bottle fixed plate is equipped with the spacing groove with spacing pearl looks adaptation.
Preferably, the inner side wall of the box body is provided with an upper limiting slide block and a lower limiting slide block respectively, and correspondingly, the upper end face and the lower end face of the sample injection bottle fixing plate are provided with an upper limiting slide groove and a lower limiting slide groove which are matched with the upper limiting slide block and the lower limiting slide block respectively.
Preferably, the height adjusting mechanism comprises a filter membrane fixing plate, a slide rail and a limiting block, the limiting block is arranged above the slide rail, a gap matched with the thickness of the filter membrane fixing plate is reserved between the limiting block and the slide rail, the slide rail is an inclined plane towards one side, contacted with the filter membrane fixing plate, of the slide rail, correspondingly, the filter membrane fixing plate is also an inclined plane towards one side, attached to the slide rail, of the filter membrane fixing plate, the filter membrane fixing plate is provided with a second accommodating groove used for accommodating the filter membrane, and the first accommodating groove corresponds to the second accommodating groove.
Preferably, the height adjusting mechanism further comprises a supporting and positioning rod and a fixing seat arranged on the inner side wall of the box body, one end of the supporting and positioning rod is connected with the bottom end of the filter membrane fixing plate in a sliding mode, the other end of the supporting and positioning rod is connected with the fixing seat in a rotating mode, and correspondingly, a sliding groove fixed with the end portion of the supporting and positioning rod is formed in the bottom end of the filter membrane fixing plate.
Preferably, the syringe fixing device comprises a syringe fixing plate arranged above the filter membrane fixing plate, and the syringe fixing plate is provided with a through hole for the syringe to pass through.
Preferably, a first spring and a fixing ring are fixed to the periphery of the through hole, one end of the first spring is fixed to the upper end surface of the syringe fixing plate, and the other end of the first spring is fixed to the pressure plate.
Preferably, the pressing injection device is used for pressing a piston to inject liquid, and the pressing plate is arranged above the syringe fixing plate.
Preferably, the driving mechanism comprises a threaded column rotationally connected with the injector fixing plate and a sliding plate arranged above the pressing plate, and the sliding plate is slidably connected with the side wall of the box body;
the sliding plate is provided with a power groove, the wall of the power groove is provided with sawteeth, and correspondingly, one end of the threaded column, which is back to the injector fixing plate, is provided with a sawteeth section meshed with the sawteeth; the side end of the sliding plate is provided with a handle which is convenient for a user to apply force.
Preferably, the power groove is U-shaped, and only one side groove wall of the U-shaped power groove is provided with sawteeth.
Preferably, the pressing liquid injection device further comprises an adjusting mechanism used for adjusting the pressing plate to be located on the horizontal plane, the adjusting mechanism comprises a fixing groove located on the side wall of the box body, a fixing column and a second spring sleeved on the outer side wall of the fixing column, the fixing column is fixed to the bottom of the fixing groove, and one end, back to the bottom of the fixing groove, of the second spring is in contact with the pressing plate.
The invention has the beneficial effects that:
in the invention, an experimenter can put the sample feeding bottle on the sample feeding bottle fixing plate for fixing in advance, and fix the filtering membrane on the height adjusting mechanism. In the process, the experimenter can place the corresponding sampling bottles and the corresponding filtering membranes according to the number of samples to be filtered at one time. Meanwhile, the experimenter fixes the injector which extracts the sample solution to be detected on the injector fixing device in advance. After all the operations are completed, the pressing liquid injection device can be operated to fix the sample solution to be detected and the microporous filter membrane carrier by pressing the piston downwards, and the whole filtering process is completed. After the operation is finished, the experimenter directly takes out the sample injection bottle for packaging. Therefore, experimenters can filter sample solution in batches by the scheme provided by the invention, so that the experimental time before the machine is operated is greatly shortened, and the experimental efficiency is further improved.
Drawings
FIG. 1 is a schematic structural diagram of a holder for batch filtration of a sample solution according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the position limiting device in the present embodiment;
FIG. 3 is a schematic view of a portion of a holder for batch filtration of a sample solution according to an embodiment of the present invention;
FIG. 4 is a schematic view of a partial cross-sectional structure of a holder for batch filtration of a sample solution according to an embodiment of the present invention;
fig. 5 is an enlarged view of a portion a in fig. 4.
In the figure: 1. the injection bottle fixing device comprises a box body, 12, an upper limiting slide block, 13, a lower limiting slide block, 2, an injection bottle fixing plate, 21, an upper limiting slide groove, 22, a lower limiting slide groove, 23, an elastic part, 24, a limiting bead, 3, a filter membrane fixing plate, 32, a slide rail, 33, a fixing seat, 34, a supporting and positioning rod, 35, a limiting block, 4, an injector fixing plate, 41, a fixing ring, 42, a fixing column, 43, a first spring, 44, a pressing plate, 5, a sliding plate, 51, a handle, 6 and a threaded column.
Detailed Description
The embodiment provides a technical scheme:
as shown in fig. 1-5, a mount for filtering sample liquid in batches, including cavity and one end open-ended box 1, and this embodiment still includes and sets gradually inside box 1 by supreme down: the device comprises a sample injection bottle fixing device, a height adjusting mechanism, an injector fixing device and a pressing liquid injection device, wherein the height adjusting mechanism is used for fixing a filter membrane and adjusting the height position of the filter membrane; the sample injection bottle fixing device comprises a sample injection bottle fixing plate 2 arranged in a sliding manner with the inner side wall of the box body and a limiting device for preventing the sample injection bottle fixing plate 2 from accidentally sliding; the sample injection bottle fixing plate 2 is provided with a first accommodating groove matched with the sample injection bottle; the limiting device comprises a groove, an elastic part 23 and a limiting bead 24 which are arranged on the inner side wall of the box body 1, one end of the elastic part 23 is fixed with the bottom of the groove, the other end of the elastic part is fixed with the limiting bead 24, the diameter of the limiting bead 24 is matched with the groove diameter of the groove, and correspondingly, a limiting groove matched with the limiting bead 24 is arranged at the side end of the sample injection bottle fixing plate 2. The limiting device can prevent the sample feeding bottle fixing plate 2 from unexpected movement under the condition of non-artificial force application, thereby influencing the collection of sample solution.
As shown in fig. 2, the inner side wall of the box body 1 is respectively provided with an upper limiting slide block 12 and a lower limiting slide block 13, and correspondingly, the upper end face and the lower end face of the sample bottle fixing plate 2 are respectively provided with an upper limiting slide groove 21 and a lower limiting slide groove 22 which are matched with the upper limiting slide block 12 and the lower limiting slide block 13.
As shown in fig. 4 and 5, the height adjusting mechanism includes a filter membrane fixing plate 3, a slide rail 32 and a limiting block 35, the limiting block 35 is disposed above the slide rail 32, a gap matched with the thickness of the filter membrane fixing plate 3 is reserved between the limiting block 35 and the slide rail 32, the slide rail 32 is an inclined plane toward one side of the filter membrane fixing plate 3 where the filter membrane fixing plate contacts, correspondingly, the side of the filter membrane fixing plate 3 attached to the slide rail 32 is also an inclined plane, the filter membrane fixing plate 3 is provided with a second accommodating groove for accommodating a filter membrane, and the first accommodating groove corresponds to the position of the second accommodating groove. When the fixed filtration membrane of experimenter needs the installation, can slide filtration membrane fixed plate 3 downwards along the inclined plane of slide rail 32 to pull open the interval of filtration membrane fixed plate 3 and syringe fixed plate 4, made things convenient for the experimenter to install filtration membrane more. After the experimenter completes the installation of the filtering membrane, the filtering membrane fixing plate 3 can slide upwards along the inclined plane of the slide rail 32, and then the installation process of the filtering membrane can be completed.
As shown in fig. 4 and 5, the height adjusting mechanism further includes a supporting and positioning rod 34 and a fixing seat 33 disposed on the inner side wall of the box body 1, one end of the supporting and positioning rod 34 is slidably connected to the bottom end of the filter membrane fixing plate 3, the other end of the supporting and positioning rod is rotatably connected to the fixing seat 33, and correspondingly, a sliding groove fixed to the end portion of the supporting and positioning rod 34 is disposed at the bottom end of the filter membrane fixing plate 3.
As shown in figure 3, the injector fixing device comprises an injector fixing plate 4 arranged above the filter membrane fixing plate 3, and the injector fixing plate 4 is provided with a through hole for the injector to pass through.
As shown in fig. 3, a first spring 43 and a fixing ring 41 are fixed to the periphery of the through hole, one end of the first spring 43 is fixed to the upper end surface of the syringe fixing plate 4, and the other end is fixed to a pressure plate 44.
As shown in fig. 3 and 4, the pressing injection device includes a pressing plate 44 for pressing the piston downward for injection and a driving mechanism for driving the pressing plate to move in the vertical direction, and the pressing plate 44 is disposed above the syringe fixing plate 4.
As shown in fig. 3, the driving mechanism comprises a threaded column 6 rotatably connected with the injector fixing plate 4 and a sliding plate 5 arranged above the pressing plate 44, wherein the sliding plate 5 is slidably connected with the side wall of the box body 1; the sliding plate 5 is provided with a power groove, the wall of the power groove is provided with sawteeth, and correspondingly, one end of the threaded column 6, which is back to the injector fixing plate 4, is provided with a sawteeth section meshed with the sawteeth; the side end of the sliding plate 5 is provided with a handle 51 which is convenient for a user to apply force. The experimenter can hand handle 51, and pulling slide 5 moves in the horizontal direction, because the cell wall of power groove is equipped with the sawtooth, so when handle 51 is moving, threaded post 6 is following the rotation, and threaded post 6 can adopt the bearing to be connected with syringe fixed plate 4. The through-hole inside wall that clamp plate 44 supplied screw thread post 6 to wear to establish is equipped with one along gliding lug in screw thread post 6, consequently when screw thread post 6 rotated, clamp plate 44 can follow screw thread post 6 and move in vertical direction to exert pressure to the piston in the syringe, thereby filter the sample solution that awaits measuring. Since the thread pitch of the outer side wall of the threaded column 6 is small, the pressure plate 44 does not incline during the up-and-down movement.
In this embodiment, the power groove is U-shaped, and only one side groove wall of the U-shaped power groove is provided with the saw teeth. When an experimenter pulls the sliding plate 5, the threaded column 6 starts to rotate, the sawtooth section is meshed with the groove wall on one side of the U-shaped power groove, and the other side of the U-shaped power groove freely rotates, so that the pressing plate 44 is driven to move downwards.
As shown in fig. 3, the pressing liquid injection device further includes an adjusting mechanism for adjusting the pressing plate 44 to be located on the horizontal plane, the adjusting mechanism includes a fixing groove located on the side wall of the box 1, a fixing column 42 and a second spring sleeved on the outer side wall of the fixing column 42, the fixing column 42 is fixed to the bottom of the fixing groove, and one end of the second spring, which faces away from the bottom of the fixing groove, is in contact with the pressing plate 44.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a mount for filtering sampling liquid in batches, includes cavity and one end open-ended box (1), its characterized in that still includes by supreme setting gradually in box (1) inside down:
the device comprises a sample injection bottle fixing device, a height adjusting mechanism, an injector fixing device and a pressing liquid injection device, wherein the height adjusting mechanism is used for fixing a filter membrane and adjusting the height position of the filter membrane;
the sample injection bottle fixing device comprises a sample injection bottle fixing plate (2) arranged in a sliding manner with the inner side wall of the box body and a limiting device for preventing the sample injection bottle fixing plate (2) from sliding accidentally;
the sample feeding bottle fixing plate (2) is provided with a first accommodating groove matched with the sample feeding bottle;
the limiting device comprises a groove, an elastic part (23) and a limiting bead (24), wherein the groove, the elastic part (23) and the limiting bead (24) are arranged on the inner side wall of the box body (1), one end of the elastic part (23) is fixed to the bottom of the groove, the other end of the elastic part is fixed to the limiting bead (24), the diameter of the limiting bead (24) is matched with the groove diameter of the groove, and correspondingly, a limiting groove matched with the limiting bead (24) is formed in the side end of the sample feeding bottle fixing plate (2);
the height adjusting mechanism comprises a filter membrane fixing plate (3), a sliding rail (32) and a limiting block (35), the limiting block (35) is arranged above the sliding rail (32), a gap matched with the thickness of the filter membrane fixing plate (3) is reserved between the limiting block (35) and the sliding rail (32), one side, which is contacted with the filter membrane fixing plate (3), of the sliding rail (32) is an inclined plane, correspondingly, one side, which is jointed with the sliding rail (32), of the filter membrane fixing plate (3) is also an inclined plane, the filter membrane fixing plate (3) is provided with a second accommodating groove for accommodating a filter membrane, and the positions of the first accommodating groove and the second accommodating groove correspond to each other;
the height adjusting mechanism further comprises a supporting and positioning rod (34) and a fixing seat (33) arranged on the inner side wall of the box body (1), one end of the supporting and positioning rod (34) is connected with the bottom end of the filter membrane fixing plate (3) in a sliding mode, the other end of the supporting and positioning rod is connected with the fixing seat (33) in a rotating mode, and correspondingly, a sliding groove fixed with the end portion of the supporting and positioning rod (34) is formed in the bottom end of the filter membrane fixing plate (3).
2. The fixing frame for filtering the sample liquid in batches according to claim 1, wherein the inner side wall of the box body (1) is respectively provided with an upper limiting slide block (12) and a lower limiting slide block (13), and correspondingly, the upper end surface and the lower end surface of the sample bottle fixing plate (2) are respectively provided with an upper limiting slide groove (21) and a lower limiting slide groove (22) which are matched with the upper limiting slide block (12) and the lower limiting slide block (13).
3. The holder for mass filtration of sample solutions according to claim 1, wherein the syringe fixing means comprises a syringe fixing plate (4) disposed above the filter fixing plate (3), and the syringe fixing plate (4) is provided with a through hole for passing a syringe therethrough.
4. The holder for filtering a sample liquid in batches according to claim 3, characterized in that a first spring (43) and a fixing ring (41) are fixed on the periphery of the through hole, one end of the first spring (43) is fixed on the upper end face of the syringe fixing plate (4), and the other end is fixed on the pressing plate (44).
5. The fixed frame for batch filtration of sample liquid according to claim 4, wherein the pressing liquid injection device is used for pressing a pressure plate (44) for injecting liquid under the piston and a driving mechanism for driving the pressure plate to move in the vertical direction, and the pressure plate (44) is arranged above the injector fixing plate (4);
the driving mechanism comprises a threaded column (6) rotationally connected with the injector fixing plate (4) and a sliding plate (5) arranged above the pressing plate (44), and the sliding plate (5) is in sliding connection with the side wall of the box body (1);
the sliding plate (5) is provided with a power groove, the wall of the power groove is provided with sawteeth, and correspondingly, one end of the threaded column (6) back to the injector fixing plate (4) is provided with a sawteeth section meshed with the sawteeth;
the side end of the sliding plate (5) is provided with a handle (51) which is convenient for a user to apply force.
6. The holder of claim 5, wherein the trough is U-shaped, and only one side of the U-shaped trough is provided with saw teeth.
7. The fixed frame for batch filtration of sample liquid according to claim 1, wherein the pressing liquid injection device further comprises an adjusting mechanism for adjusting the position of the pressing plate (44) on the horizontal plane, the adjusting mechanism comprises a fixed groove located on the side wall of the box body (1), a fixed column (42) and a second spring sleeved on the outer side wall of the fixed column (42), the fixed column (42) is fixed with the bottom of the fixed groove, and one end of the second spring, which faces away from the bottom of the fixed groove, is in contact with the pressing plate (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839032.9A CN108940400B (en) | 2018-07-27 | 2018-07-27 | A mount for filtering sampling liquid in batches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839032.9A CN108940400B (en) | 2018-07-27 | 2018-07-27 | A mount for filtering sampling liquid in batches |
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| Publication Number | Publication Date |
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| CN108940400A CN108940400A (en) | 2018-12-07 |
| CN108940400B true CN108940400B (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810839032.9A Active CN108940400B (en) | 2018-07-27 | 2018-07-27 | A mount for filtering sampling liquid in batches |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110333123A (en) * | 2019-08-19 | 2019-10-15 | 贵州师范大学 | A kind of water sample filter plant for Karst region |
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Denomination of invention: A fixed rack for batch filtration of sample solution Effective date of registration: 20230329 Granted publication date: 20210420 Pledgee: Guangfa Bank Co.,Ltd. Hangzhou Baoshan sub branch Pledgor: GREENTOWN NONGKE DETECTION TECHNOLOGY Co.,Ltd. Registration number: Y2023330000615 |