CN213101620U - Liquid pressurizing and filtering device - Google Patents

Liquid pressurizing and filtering device Download PDF

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Publication number
CN213101620U
CN213101620U CN202021759664.3U CN202021759664U CN213101620U CN 213101620 U CN213101620 U CN 213101620U CN 202021759664 U CN202021759664 U CN 202021759664U CN 213101620 U CN213101620 U CN 213101620U
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China
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liquid
pressure
syringe
piston
injector
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CN202021759664.3U
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Chinese (zh)
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陈玲
张明昊
徐秋羽
谭华
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Chongqing Medical University
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Chongqing Medical University
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Abstract

The utility model discloses a liquid pressure boost filter equipment, including syringe, filter equipment and liquid storage tube, still include for the fixed pressure application ware that sets up of syringe, be equipped with the piston in the syringe, pressure application ware include with piston fixed connection's application of force pole with pass through application of force pole drive the piston is in reciprocating motion's drive arrangement is done in the syringe. This device simple structure, the operation of being convenient for not only can increase the pressure in the syringe, make the liquid medicine filter faster, raise the efficiency, can the controlled pressure size moreover, improve the stability of liquid medicine filtering process on the basis of accelerating liquid medicine filter speed.

Description

Liquid pressurizing and filtering device
Technical Field
The utility model relates to a liquid medicine filters technical field, specific is a liquid pressure boost filter equipment.
Background
Polyethylene Glycol (PEG) Polyethylene Glycol, which is soluble in water, such as Polyethylene Glycol 8000(PEG 8000) with an average molecular weight of about 8000, has a relatively high molecular weight, and thus the surface tension of the solution formed after dissolving in water is very high, the liquid viscosity is high, and the solution often contains insoluble impurities and bacteria. In the process of experiment, the impurities and bacteria in the solutions of PEG 8000 and the like need to be filtered, and the existing filtering device has slow filtering speed and low experiment efficiency due to large liquid viscosity in the filtering process of the solutions of PEG 8000 and the like. For example, in the chinese patent with publication No. CN200680032832.5 entitled device for injecting high viscosity material, the pressure applicator of the device needs to be manually pressed down to press down the piston of the syringe, so as to rapidly filter or inject the high viscosity liquid, and the manual pressing down of the syringe can not accurately control the pressure, and is very inconvenient to operate, so that it is necessary to invent a pressurized filtering device which is convenient to operate, can control the pressure, and thus improves the filtering stability of the liquid medicine.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a liquid pressure boost filter equipment, this device be convenient for operate and can the controlled pressure size, improve the stability of liquid medicine filtering process on the basis of accelerating liquid medicine filter speed.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the liquid pressurizing and filtering device comprises an injector, a filtering device and a liquid storage tube, and further comprises a pressure applying device which is fixedly arranged relative to the injector, wherein a piston is arranged in the injector, and the pressure applying device comprises a force applying rod which is fixedly connected with the piston and a driving device which drives the piston to reciprocate in the injector through the force applying rod.
Further, the pressure applying device comprises a shell, an opening is formed in one end of the shell, the driving device is arranged in the shell and comprises a speed reducing motor, a lead screw and a sliding block, a threaded hole matched with the lead screw is formed in the sliding block, the output end of the speed reducing motor is connected with the lead screw through a coupler, and the sliding block is connected with the force applying rod.
Further, the inner wall of the shell is provided with a track, and the outer wall of the sliding block is provided with a sliding groove in sliding fit with the track.
The device further comprises a fixed support, wherein clamping mechanisms are arranged on the fixed support in one-to-one correspondence with the pressure applying device, the syringe and the liquid storage tube, and the pressure applying device, the syringe and the liquid storage tube are fixedly arranged on the corresponding clamping mechanisms.
Further, the filtering device is provided with a liquid inlet and a liquid outlet, the liquid outlet of the injector is communicated with the liquid inlet of the filtering device in a sealing manner, and the liquid outlet of the filtering device is communicated with the liquid storage pipe.
Further, the syringe is positioned above the reservoir, the pressure applicator is positioned above the syringe, and the pressure applicator, the syringe and the reservoir are coaxial.
Further, the pressure applicator is provided with a switch and a button capable of controlling the moving direction of the piston.
Further, a pressure sensor is arranged in the piston, and a display screen capable of displaying the pressure is arranged on the pressure applying device.
Further, the filtering device is a needle head type filter, a filtering membrane is arranged in the needle head type filter, small holes are formed in the filtering membrane, and the aperture of each small hole in the filtering membrane is 0.45 mu m.
The beneficial effects of the utility model reside in that:
the utility model discloses a liquid pressure boost filter equipment, syringe and the fixed setting of pressure application ware, through drive arrangement promotion piston reciprocating motion in the syringe in the pressure application ware, through mechanical drive rather than manual mode promotion piston feeding in the syringe, can guarantee that the pressure size of syringe intracavity is controllable, and this device is convenient for operate, can guarantee the stability of liquid medicine filtering process moreover on the basis of accelerating liquid medicine filter speed.
Drawings
In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:
FIG. 1 is a general schematic diagram of an embodiment of a fluid filtration device according to the present invention;
FIG. 2 is a cross-sectional view of the liquid filter assembly of the present invention;
FIG. 3 is a cross-sectional view of the fluid filter apparatus of the present invention at the maximum stroke;
FIG. 4 is a sliding fit diagram of the sliding block and the housing of the present invention;
fig. 5 is a schematic view of the clamping mechanism of the present invention.
Description of reference numerals:
1-a pressure applicator; 2-a syringe; 3-a filtration device; 4-a liquid storage pipe; 5-a speed reduction motor; 6-a lead screw; 7-a slide block; 8-a coupler; 9-a piston; 10-a track; 11-a chute; 12-a base; 13-a pillar; 14-a clamping mechanism; 15-a button; 16-a display screen; 17-a filtration membrane; 18-a housing; 19-a switch; 20-a force application rod; 21-threaded hole.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
As shown in fig. 1, for the liquid pressurizing and filtering device according to the embodiment of the present invention, the device includes a syringe 2, a filtering device 3 and a liquid storage tube 4, and further includes a pressure applying device 1 fixedly disposed relative to the syringe 2, a piston 9 is disposed in the syringe 2, and the pressure applying device 1 includes a force applying rod 20 fixedly connected to the piston 9 and a driving device for driving the piston 9 to reciprocate in the syringe 2 through the force applying rod 20.
Further, the pressure applying device of the embodiment includes a housing, one end of the housing is provided with an opening, the driving device is disposed in the housing, the driving device includes a speed reduction motor 5, a lead screw 6 and a sliding block 7, the sliding block 7 is provided with a threaded hole 21 matched with the lead screw 6, the output end of the speed reduction motor 5 is connected with the lead screw 6 by a coupler 8, and the sliding block 7 is connected with the force applying rod 20. Concretely, 5 output shafts of gear motor adopt shaft coupling 8 to link to each other with lead screw 6, 5 rotations of gear motor drive lead screw 6 and rotate, lead screw 6 is as the active body this moment, slider 7, application of force pole 20 and piston 9 are passive, when lead screw 6 rotates, slider 7 drives syringe piston 9 through application of force pole 20 and is linear motion, exert pressure 2 intracavity to the syringe, thereby can accelerate the filter velocity of liquid medicine in syringe 2, 2 intracavity pressure sizes of syringe can be controlled to the distance that drives piston 9 through switch 19 control slider 7 and push down.
Further, the inner wall of the shell of the embodiment is provided with a track 10, and the outer wall of the sliding block 7 is provided with a sliding groove 11 in sliding fit with the track 10. The rail 10 and the sliding groove 11 are matched with each other, so that the sliding block 7 can be prevented from rotating along with the lead screw 6, and a guiding effect can be provided for the movement of the sliding block 7.
Further, the liquid pressurizing and filtering device of the present embodiment further includes a fixing bracket, clamping mechanisms are disposed on the fixing bracket in one-to-one correspondence with the pressure applicator 1, the syringe 2, and the liquid storage tube 4, and the pressure applicator 1, the syringe 2, and the liquid storage tube 4 are fixedly mounted on the corresponding clamping mechanisms. Specifically, as shown in fig. 1, the fixing bracket includes a base 12, a vertical column 13 is disposed on the base 12, a clamping mechanism 14 is disposed on the column 13, the clamping mechanism 14 is perpendicular to the column 13, one end of the clamping mechanism 14 is fixedly connected to the column 13, the other end of the clamping mechanism 14 is provided with a clamping portion, and the pressure applying device 1, the syringe 2, the liquid storage tube 4 and the clamping portion are mounted and fixed in a one-to-one correspondence manner. As shown in fig. 5, the clamping portion is two hoops disposed at one end of the clamping mechanism, one end of the hoop is mounted by a bolt and nut assembly through a through hole, the pressure applicator 1, the syringe 2 or the liquid storage tube 4 is placed between the two hoops, and the other end of the hoop is fixed by the bolt and nut assembly.
Further, the filter device 3 of this embodiment is provided with a liquid inlet and a liquid outlet, the liquid outlet of the syringe 2 is hermetically communicated with the liquid inlet of the filter device, and the liquid outlet of the filter device 3 is communicated with the liquid storage tube 4. The sealed communication can guarantee that the high-viscosity liquid entering the filtering device from the injector 2 does not overflow the filtering device, and the filtered high-viscosity liquid flows into the liquid storage pipe 4 through the liquid outlet of the filtering device.
Further, the syringe 2 of the present embodiment is located above the liquid storage tube 4, the pressure applicator 1 is located above the syringe 2, and the pressure applicator 1, the syringe 2 and the liquid storage tube 4 are coaxial. The three parts are arranged in the same straight line from top to bottom, which is beneficial to the pushing of the piston 9 in the syringe 2 by the driving device of the pressure applicator 1 so as to apply pressure in the syringe 2 and also beneficial to the liquid medicine in the syringe 2 to flow into the liquid storage tube 4.
Further, the pressure applicator 1 of the present embodiment is provided with a switch 19 and a button 15 capable of controlling the moving direction of the piston 9. The switch 19 can control the start and stop of the gear motor 5, and the rotation direction of the gear motor 5 can be changed through the button 15 to control the moving direction of the slide block 7, so as to control the moving direction of the piston 9 in the injector 2.
Further, the piston 9 of the present embodiment is provided with a pressure sensor therein, and the pressure applicator 1 is provided with a display screen 16 capable of displaying the pressure. The pressure sensor detects the pressure of the piston 9 in the cavity of the injector 2, converts the pressure signal into an electric signal and then converts the electric signal into a digital signal to be displayed on the display screen 16, so that the pressure in the cavity of the injector 2 is monitored in real time.
Further, the filtering apparatus of this embodiment is a needle filter, the needle filter is provided with a filtering membrane 17, the filtering membrane 17 is provided with small holes, and the pore diameter of the small holes on the filtering membrane is 0.45 μm. The syringe needle formula filter is quick, convenient, reliable filtering tool that laboratory routine used, and the appearance is pleasing to the eye light and handy, the cleanliness factor is high, and the micropore aperture is 0.45 mu m on the filtration membrane 17 in the syringe needle formula filter of this embodiment, can filter most solid impurity and bacterium in the liquid medicine and clear away.
The working process of the liquid pressurizing and filtering device of the embodiment is as follows:
the liquid medicine to be filtered is introduced into the injector 2, the devices are sequentially connected and fixed according to the setting, at the moment, the lead screw 6 is positioned in the slide block 7, the pressure applicator 1 is opened, the speed reducing motor 5 rotates to drive the lead screw 6 to rotate, the slide block 7 gradually moves downwards along the track 10 in the shell 18 of the pressure applicator 1, the piston 9 moves downwards along the slide block 7 under the action of the force application rod 20, the pressure in the injector 2 is increased, the filtering speed of the liquid medicine is accelerated, for filtering different types of liquid medicines, the size of pressure in the cavity of the injector 2 can be controlled by adjusting the stroke of driving the piston of the injector 2 by the slide block 7 through the switch 19, the pressure applicator 1 is closed after the liquid medicine is completely filtered, the speed reducing motor 5 can be reversely rotated by pressing the button 15, the slide block drives the piston 9 to move out of the.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims (9)

1. The utility model provides a liquid pressure boost filter equipment, includes syringe (2), filter equipment (3) and liquid storage pipe (4), its characterized in that: the device is characterized by further comprising a pressure applicator (1) fixedly arranged relative to the injector (2), wherein a piston (9) is arranged in the injector (2), and the pressure applicator (1) comprises an application rod (20) fixedly connected with the piston (9) and a driving device for driving the piston (9) to reciprocate in the injector (2) through the application rod (20).
2. The liquid pressurized filter apparatus of claim 1, wherein: the pressure applying device (1) comprises a shell (18), an opening is formed in one end of the shell (18), the driving device is arranged in the shell (18) and comprises a speed reducing motor (5), a lead screw (6) and a sliding block (7), a threaded hole (21) matched with the lead screw (6) is formed in the sliding block (7), the output end of the speed reducing motor (5) is connected with the lead screw (6) through a coupler (8), and the sliding block (7) is connected with the force applying rod (20).
3. The liquid pressurized filter apparatus of claim 2, wherein: the inner wall of the shell (18) is provided with a track (10), and the outer wall of the sliding block (7) is provided with a sliding groove (11) which is in sliding fit with the track (10).
4. The liquid pressurized filter apparatus of claim 1, wherein: the device is characterized by further comprising a fixing support, wherein clamping mechanisms are arranged on the fixing support in one-to-one correspondence with the pressure applying device (1), the syringe (2) and the liquid storage tube (4), and the pressure applying device (1), the syringe (2) and the liquid storage tube (4) are fixedly installed on the corresponding clamping mechanisms.
5. The liquid pressurized filter apparatus of claim 1, wherein: the filtering device is provided with a liquid inlet and a liquid outlet, the liquid outlet of the injector (2) is communicated with the liquid inlet of the filtering device (3) in a sealing way, and the liquid outlet of the filtering device (3) is communicated with the liquid storage pipe (4).
6. The liquid pressurized filter apparatus of claim 5, wherein: the injector (2) is positioned above the liquid storage pipe (4), the pressure applicator (1) is positioned above the injector (2), and the pressure applicator (1), the injector (2) and the liquid storage pipe (4) are coaxial.
7. The liquid pressurized filter apparatus of claim 1, wherein: the pressure applicator (1) is provided with a switch (19) and a button (15) capable of controlling the moving direction of the piston.
8. The liquid pressurized filter apparatus of claim 1, wherein: a pressure sensor is arranged in the piston (9), and a display screen (16) capable of displaying the pressure is arranged on the pressure applicator (1).
9. The liquid pressurized filter apparatus of claim 1, wherein: the filter device (3) is a needle head type filter, a filter membrane (17) is arranged in the needle head type filter, a small hole is formed in the filter membrane (17), and the aperture of the small hole in the filter membrane (17) is 0.45 mu m.
CN202021759664.3U 2020-08-20 2020-08-20 Liquid pressurizing and filtering device Active CN213101620U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021759664.3U CN213101620U (en) 2020-08-20 2020-08-20 Liquid pressurizing and filtering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021759664.3U CN213101620U (en) 2020-08-20 2020-08-20 Liquid pressurizing and filtering device

Publications (1)

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CN213101620U true CN213101620U (en) 2021-05-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115569435A (en) * 2022-09-29 2023-01-06 生态环境部淮河流域生态环境监督管理局生态环境监测与科学研究中心 Portable water sample filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115569435A (en) * 2022-09-29 2023-01-06 生态环境部淮河流域生态环境监督管理局生态环境监测与科学研究中心 Portable water sample filter

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