CN108722188A - Filter - Google Patents
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- Publication number
- CN108722188A CN108722188A CN201710258604.XA CN201710258604A CN108722188A CN 108722188 A CN108722188 A CN 108722188A CN 201710258604 A CN201710258604 A CN 201710258604A CN 108722188 A CN108722188 A CN 108722188A
- Authority
- CN
- China
- Prior art keywords
- tube body
- contact head
- chamber
- linker
- triggering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012528 membrane Substances 0.000 claims abstract description 47
- 230000008676 import Effects 0.000 claims abstract description 35
- 230000000712 assembly Effects 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 230000001960 triggered effect Effects 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 48
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 238000007789 sealing Methods 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 238000005070 sampling Methods 0.000 claims description 10
- 238000009530 blood pressure measurement Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 239000012488 sample solution Substances 0.000 abstract description 34
- 239000000523 sample Substances 0.000 description 12
- 230000001276 controlling effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- B01D61/58—Multistep processes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N30/14—Preparation by elimination of some components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/14—Pressure control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/24—Specific pressurizing or depressurizing means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N30/14—Preparation by elimination of some components
- G01N2030/146—Preparation by elimination of some components using membranes
Abstract
The present invention provides a kind of filters, are related to filter device technical field, reduce the working strength of staff, improve working efficiency.The present invention main technical schemes be：A kind of filter, including：Plemum, plemum is interior to have chamber, is used to store barotropic gas in chamber；Linker is triggered, plemum is connected to, triggers and is provided with air intake and exhaust outlet on linker, triggers the air guide channel for being provided with connection air intake and exhaust outlet in linker, triggers and is provided with trigger unit on linker, trigger unit is for making air intake and chamber；Filter assemblies, filter assemblies include tube body and filter membrane, and there is tube body the inlet and outlet being connected, filter membrane to be communicated in outlet, and triggering linker is for being sealed in import, and exhaust outlet is connected to tube body.The filter is mainly used for filtered sample solution.
Description
Technical field
The present invention relates to filter device technical field more particularly to a kind of filters.
Background technology
In pesticide residue analysis detection, sample solution need to be entered back into chromatographic apparatus later and analyzed by filter membrane.
Currently, being assembled using syringe and filter membrane, sample solution is passed through by filter membrane, the behaviour by the injection pressure of syringe
Make by manual operation, per one sample of filter membrane, staff is intended to the piston of pressing syringe, to pass through sample solution
Filter membrane.
However, when executing aforesaid operations, inventor has found that at least there are the following problems in the prior art：Work as sample size
When more, staff needs one by one to realize each sample by filter membrane by pressing syringe, repeatedly presses for a long time
Pressure brings fatigue to staff, reduces working efficiency.
Invention content
In view of this, the embodiment of the present invention provides a kind of filter, the working strength of staff is reduced, improves work effect
Rate.
In order to achieve the above objectives, present invention generally provides following technical solutions：
The embodiment of the present invention provides a kind of filter, including：
Plemum, the plemum is interior to have chamber, is used to store barotropic gas in the chamber；
Linker is triggered, the plemum is connected to, air intake and exhaust outlet is provided on the triggering linker, it is described
It is provided with the air guide channel for being connected to the air intake and the exhaust outlet in triggering linker, is provided on the triggering linker
Trigger unit, the trigger unit is for making the air intake and the chamber；
Filter assemblies, the filter assemblies include tube body and filter membrane, and the tube body has the inlet and outlet being connected, institute
It states filter membrane and is communicated in the outlet, the triggering linker is for being sealed in the import, and the exhaust outlet and the tube body
Connection.
Specifically, the quantity of the triggering linker is multiple, and the quantity of the tube body and the filter membrane is touched with described
The quantity for sending out linker is equal；Each triggering linker is respectively used to be sealed in the import of each tube body.
Specifically, the triggering linker includes connectedness, contact head and elastomeric element；
One end of the connectedness blocks, and the other end of the connectedness is provided with the first opening, the air intake setting
Lead to the first of the air intake on the side wall of the connectedness, being provided with to be communicated in described first and be open in the connectedness
Road；
One end of the contact head is provided with the second opening, and the exhaust outlet is set to the other end of the contact head, institute
The second channel for being provided in contact head and being connected to second opening and the exhaust outlet is stated, one end connection of the contact head is simultaneously
It is communicated in the other end of the connectedness；
The air guide channel includes the first passage and the second channel；
Through-hole is provided in the cavity wall of the chamber, the connectedness sealing is connected to the through-hole, the contact head position
In outside the plemum, being provided with the elastomeric element between the contact head and the plemum, the contact head has close
Part is sealed, the size of the hermetic unit is more than the import of the tube body；
When the triggering linker is in off working state, the contact head is in discrete state, institute with the tube body
The one end for stating connectedness blocks the through-hole；When the import of the tube body pushes the contact head, the contact head is by institute
State the import sealing of tube body, and the contact head drives the connectedness to the chamber indoor moving so that the air intake with
It is connected in the chamber, the elastomeric element has the contact head active force toward the tube body at this time；
Wherein, the contact head is the trigger unit.
Specifically, the contact head uses elaxtic seal；The other end of the contact head is spherical, the exhaust outlet
Positioned at the side of the contact head other end, when the contact head seals the import of the tube body, the side of the exhaust outlet
Default angle is formed to the axial direction with the tube body.
Specifically, fixes sleeve, the both ends connection of the fixes sleeve, institute are sealedly connected on the outer wall of the plemum
Fixes sleeve is stated to be located at the through hole and be communicated in the through-hole；
The connectedness is connection bar, and the connection bar is penetrated from the through-hole in the fixes sleeve, the connection bar
It is sealed by the first sealing ring between the fixes sleeve, the other end of the contact head is located at except the fixes sleeve；
The elastomeric element is spring, and the spring pocket is on the outer wall of the fixes sleeve；
It is sealed by second sealing ring between one end and the through-hole of the connection bar.
Further, the filter assemblies further include the carrier for containing the tube body, and the carrier is detachably connected
In the plemum, the carrier includes cavity, and the both ends connection of the cavity, the tube body is packed into the cavity, described
The internal diameter size of cavity is more than the outer diameter of the triggering linker；
When the carrier is connect with the plemum, the import of the tube body pushes the contact head, so that described connect
Contact seals the import of the tube body, and the exhaust outlet is connected to the tube body, and the contact head drive the connectedness to
The chamber indoor moving, so as to be connected in the air intake and the chamber；
When the quantity of the triggering linker and the tube body is multiple, the carrier includes multiple institutes spaced apart from each other
Cavity is stated, each tube body is respectively charged into each cavity.
Further, above-mentioned filter further includes：Vessel, the vessel includes holding space, described to hold space
For placing sampling container, the filter membrane for holding space and corresponding to the tube body exit；
When the quantity of the cavity is multiple, the vessel include it is multiple it is spaced apart from each other it is described hold space, often
Space, which is held, described in a corresponds respectively to each cavity.
Specifically, the plemum, the carrier and the vessel are detachably connected successively from top to bottom；
The filter further includes supporting rack, and support frame as described above includes upright bar and is sequentially connected to from top to bottom described vertical
The first support portion, the second support portion and the third support portion of bar, wherein first support portion and second support portion difference
It is slidably connected to the upright bar；
The plemum is connected to first support portion, and the carrier is removably connected to second support portion, institute
It states vessel and is removably connected to the third support portion.
Further, above-mentioned filter further includes：Pneumatic compression devices, the pneumatic compression devices include sending splenium, described to send splenium
It is communicated in the chamber, for providing air pressure into the chamber；
Pressure control device, the pressure control device include pressure measurement part and pressure control part, the pressure measurement part and institute
Chamber is stated, the pressure for measuring the indoor barotropic gas of the chamber, the pressure control is partially attached to the pneumatic compression devices
Send splenium, for controlling the atmospheric pressure value for sending splenium to be provided into the chamber.
Specifically, the pneumatic compression devices are nitrogen cylinder, and splenium, the nitrogen cylinder are sent in the gas outlet of the nitrogen cylinder to be described
Gas outlet by pipeline connection in the chamber；
The pressure control device is pressure-regulating valve, and the pressure-regulating valve is connected to and in communication with going out in the nitrogen cylinder
Between gas port and the chamber.
A kind of filter provided in an embodiment of the present invention, by the indoor barotropic gas of plemum chamber in triggering linker
Trigger unit trigger in the case of from triggering linker air intake enter in air guide channel, and from triggering linker exhaust outlet
Be expelled in tube body, ensure that the import of triggering linker and tube body seals, then barotropic gas to the sample solution in tube body to pipe
Body outlet pushes, and so that sample solution is passed through filter membrane, during aforesaid operations, manual operation is less, without carrying out the prior art
The operation of middle manpower pressing syringe, reduces the working strength of staff, improves working efficiency；And with prior art phase
Than the filter of the embodiment of the present invention can control the pressure to sample solution by controlling the pressure of barotropic gas, avoid
The dynamics come by manpower pressing belt situation not easy to control, to reduce due to pressure excessive the phenomenon that causing filter membrane to rupture
It generates, improves sample and cross film rate.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of filter provided in an embodiment of the present invention；
Fig. 2 is the partial enlarged view of A in Fig. 1；
Fig. 3 is a kind of structural schematic diagram of triggering linker provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, the embodiment of the present invention provides a kind of filter, including：Plemum 1 has in plemum 1
Chamber 11, chamber 11 are interior for storing barotropic gas；Linker 2 is triggered, plemum 1 is connected to, triggers and is provided on linker 2
Air intake 21 and exhaust outlet 22 trigger the air guide channel 23 that connection air intake 21 and exhaust outlet 22 is provided in linker 2, triggering
Trigger unit 24 is provided on linker 2, trigger unit 24 is for making air intake 21 be connected to chamber 11；Filter assemblies 3, filter assemblies
3 include tube body 31 and filter membrane 32, and tube body 31 has the import 311 being connected and outlet 312, and filter membrane 32 is communicated in outlet 312, touches
Hair linker 2 is for being sealed in import 311, and exhaust outlet 22 is connected to tube body 31.
Wherein, the barotropic gas stored in the chamber 11 of plemum 1 can by be filled with into chamber 11 barotropic gas come
It realizes, or can also be pushed into chamber so that the indoor gas of chamber is carried just by compression by piston structure (such as cylinder)
Pressure.
Triggering linker 2 is act as when triggering trigger unit 24, and the air intake 21 and chamber 11 for triggering linker 2 connect
Logical, then the gas in chamber 11 can be entered to from the air intake 21 of triggering linker 2 in air guide channel 23, then from exhaust outlet 22
Discharge；Trigger unit can be designed as being connected to the switch as air intake such as valve at air intake, valve may be selected it is electronic or
It is pneumatic to wait drive forms (not shown), or may be designed in and control air intake and chamber by modes such as mechanical actions
Connection.
The outer tube of syringe can be used in tube body 31, and filter membrane 32 is plugged in dispensing end (the i.e. tube body 31 of syringe outer tube
312) sample solution, can be in advance packed into tube body 31 by outlet, or liquor charging conduit (figure can be also provided on the side wall of tube body
In be not shown), after sample solution is sent by liquor charging conduit in tube body, then liquor charging conduit blocked, as long as can be molten by sample
In liquid loading tube body, it is not especially limited herein；When filter works, the import 311 of linker 2 and tube body 31 will be triggered
Sealing, when barotropic gas is expelled to from the exhaust outlet 22 of triggering linker 2 in tube body 31, barotropic gas can be in tube body 31
Sample solution pushes, and so that sample solution is passed through filter membrane 32, sampling container 4 can be placed below filter membrane 32, passes through filter with access
The sample solution of film.
The embodiment of the present invention is illustrated below by the operation principle of filter.Sample solution is packed into tube body 31
It is interior, triggering linker 2 and the import 311 of tube body 31 are sealed, make the air intake 21 of triggering linker 2 by triggering trigger unit 24
It being connected to chamber 11, the barotropic gas in chamber 11 is entered to from the air intake 21 of triggering linker 2 in air guide channel 23, then from
Exhaust outlet 22 drains into tube body 31, and the sample solution in tube body 31, by filter membrane 32, can be adopted under the pressure effect of barotropic gas
Pass through the sample solution of filter membrane 32 with sampling container 4 come access.In the above process, sample solution passes through the positive pressure gas in chamber 11
Body flow in tube body 31 operation for being eliminated to push sample solution by filter membrane 32 and pressing syringe in the prior art, reduces
Manual operation, reduces the working strength of staff, to improve work efficiency.
A kind of filter provided in an embodiment of the present invention, by the indoor barotropic gas of plemum chamber in triggering linker
Trigger unit trigger in the case of from triggering linker air intake enter in air guide channel, and from triggering linker exhaust outlet
Be expelled in tube body, ensure that the import of triggering linker and tube body seals, then barotropic gas to the sample solution in tube body to pipe
Body outlet pushes, and so that sample solution is passed through filter membrane, during aforesaid operations, manual operation is less, without carrying out the prior art
The operation of middle manpower pressing syringe, reduces the working strength of staff, improves working efficiency；And with prior art phase
Than the filter of the embodiment of the present invention can control the pressure to sample solution by controlling the pressure of barotropic gas, avoid
The dynamics come by manpower pressing belt situation not easy to control, to reduce due to pressure excessive the phenomenon that causing filter membrane to rupture
It generates, improves sample and cross film rate.
Specifically, the quantity of triggering linker 2 is multiple, the quantity of tube body 31 and filter membrane 32 with triggering linker 2
Quantity is equal；Each triggering linker 2 is respectively used to be sealed in the import 311 of each tube body 31.It is provided with multiple triggering connections
Device 2 and tube body 31 will each trigger linker 2 and be corresponded with each tube body 31, and each filter membrane 32 is one-to-one respectively to be communicated in
The outlet 312 of each tube body 31 can then be carried out at the same time batch and cross membrane operations, and it is multiple disposably to cross apperance product, improves work effect
Rate.
Specifically, in conjunction with Fig. 3, triggering linker 2 includes connectedness 25, contact head 241 and elastomeric element 26；Connectedness 25
One end 251 block, the other end 252 of connectedness 25 is provided with the first opening, and air intake 21 is set to the side wall of connectedness 25
On, the first passage 253 for being communicated in the first opening 252 and air intake 21 is provided in connectedness 25；One end of contact head 241
242 are provided with the second opening, and exhaust outlet 22 is set to the other end of contact head 241, and connection second is provided in contact head 241 and is opened
The second channel 243 of mouth and exhaust outlet 22, one end 242 of contact head 241 is connected to and in communication with the other end 252 in connectedness 25；
Air guide channel 23 includes first passage 253 and second channel 243；In Fig. 2, it is provided with through-hole 12 in the cavity wall of chamber 11, is connected to
The sealing of part 25 is connected to through-hole 12, and contact head 241 is located at outside plemum 1, is arranged between contact head 241 and plemum 1 flexible
There is hermetic unit, the size of hermetic unit to be more than the import 311 of tube body 31 for component 26, contact head 241；When triggering linker 2
When in off working state, contact head 241 is in discrete state with tube body 31, and one end 251 of connectedness 25 blocks through-hole 12；
When the 311 pushing contact head 241 of import of tube body 31, contact head 241 seals the import 311 of tube body 31, and 241 band of contact head
Dynamic connectedness 25 is moved into chamber 11 so that air intake 21 with chamber 11 is interior is connected to, 26 butt contact 241 of elastomeric element at this time
With the active force toward tube body 31；Wherein, contact head 241 is trigger unit 24.
Among the above, connectedness 25 sealing be connected to through-hole 12, that is to say, that connectedness 25 relative to through-hole 12 it is static or move
When dynamic, connectedness 25 seals between through-hole 12 always, so that barotropic gas will not be leaked out from through-hole 12.When filter not work
When making, triggering linker 2 is in off working state, and contact head 241 is in discrete state, an end seal of connectedness 25 with tube body 31
Through-hole 12 is blocked, the barotropic gas in chamber 11 will not flow out chamber 11 at this time, when needing to carry out membrane operations, make tube body 31
311 pushing contact head 241 of import so that contact head 241 seals the import 311 of tube body 31, and contact head 241 drive and its
The connectedness 25 of connection is moved into chamber 11, makes to be connected in air intake 21 and chamber 11, barotropic gas can be from air intake at this time
21 enter to first passage 253, by second channel 243, then flow out to tube body from the exhaust outlet 22 of 241 other end of contact head
In 31, pass through filter membrane 32 to push the sample solution in tube body 31；After sample solution is by filter membrane 32, tube body 31 is removed,
Contact head 241 is set to be detached with tube body 31, then contact head 241 is restored to original position, contact head 241 under the active force of elastomeric element 26
Connectedness 25 is driven to be moved to the position for blocking through-hole 12, the barotropic gas in chamber 11 will not flow out chamber 11 at this time.Wherein,
Hand-held tube body can be used when 31 quantity of tube body is one to push to the contact head 241 of triggering linker 2；When 31 quantity of tube body is
When multiple, carrier 33 can be used and carry multiple tube bodies 31, carrier 33 is removably connected to plemum 1, to facilitate batch to cross film
Carrier 33 can also be used when being one to carry tube body in operation, 31 quantity of certain tube body.
Specifically, contact head 241 uses elaxtic seal, such as rubber material, more efficiently ensures contact head 241
With the sealing of tube body import 311.
The other end of contact head 241 is spherical, and exhaust outlet 22 is located at the side of 241 other end of contact head, when contact head 241
When the import 311 of tube body 31 is sealed, the direction of exhaust outlet 22 forms default angle with the axial direction of tube body 31.Work as positive pressure gas
When body is expelled to from the exhaust outlet 22 of contact head 241 in tube body 31, due to the axial direction in the direction and tube body 31 of exhaust outlet 22
Not in same rectilinear direction, then avoids the barotropic gas being discharged from exhaust outlet 22 and directly the sample solution in tube body 31 is caused
Larger impact, to prevent sample solution by impact splash, to realize the smooth filter membrane of sample solution.
Specifically, referring to Fig. 2 and Fig. 3, it is sealedly connected with fixes sleeve 27 on the outer wall of plemum 1, fixes sleeve 27
Both ends are connected to, and fixes sleeve 27 is located at through-hole 12 and is communicated in through-hole 12；Connectedness 25 is connection bar, is connected to bar from through-hole 12
It penetrates in fixes sleeve 27, is connected between bar and fixes sleeve 27 and is sealed by the first sealing ring 28, the other end of contact head 241
Except fixes sleeve 27；Wherein, fixes sleeve 27 plays guiding to the movement of connectedness 25 (being connected to bar) and protection is made
With so that connectedness 25 smoothly can be moved and be hardly damaged, contact head 241 is located at outside fixes sleeve 27, and 241 energy of contact head
Enough connectedness 25 is driven to be moved relative to fixes sleeve 27.Since connectedness 25 is close by the first sealing ring 28 and fixes sleeve 27
Envelope, but fixes sleeve 27 is sealedly attached at through-hole 12, then and the barotropic gas in chamber 11 will not let out from through-hole 12.
Elastomeric element 26 is spring, and spring pocket is on the outer wall of fixes sleeve 27；Compressed spring can be used in spring, is sleeved on solid
On the outer wall for determining sleeve 27, and between plemum 1 and contact head 241, spring along fixes sleeve 27 axial direction pressure
Contracting resets, and makes the smooth compressive deformation of spring.
It is connected between one end and through-hole 12 of bar through the sealing of the second sealing ring 29.Wherein, being connected to one end of bar can seal
Stifled through-hole 12 realizes connection bar to 12 significantly more efficient closure of through-hole by the second sealing ring 29.
Specifically, filter assemblies 3 further include the carrier 33 for containing tube body 31, and carrier 33 is removably connected to plemum
1, carrier 33 includes cavity 331, and the both ends of cavity 311 are connected to, and tube body 31 is packed into cavity 311, and the internal diameter size of cavity 311 is big
In the outer diameter of triggering linker 2；When carrier 33 is connect with plemum 1, the 311 pushing contact head 241 of import of tube body 31,
So that the import 311 of 241 sealed tube body 31 of contact head, exhaust outlet 22 are connected to tube body 31, and contact head 241 drives connectedness 25
It is moved into chamber 11, so as to be connected in air intake 21 and chamber 11.Wherein, carrier 33 contains tube body 31, and carrier 33 is connected
During plemum 1,31 pushing contact head 241 of tube body drives connectedness 25 to be moved into chamber 11 so that air intake 21
It is connected to chamber 11, the import 311 of 241 sealed tube body 31 of contact head, makes the barotropic gas in chamber 11 pass sequentially through company at this time
Parts 25 and contact head 241 drain into tube body 31, to push the sample solution in tube body 31 by filter membrane 32, when completion sample
After filter membrane, carrier 33 of dismantling, then tube body 31 detached with contact head 241, contact head 241 is multiple under the active force of elastomeric element 26
Position, and connectedness 25 is driven to reset, one end of connectedness 25 blocks the through-hole 12 of plemum 1 again.
When the quantity for triggering linker 2 and tube body 31 is multiple, carrier 33 includes multiple cavitys 331 spaced apart from each other,
Each tube body 31 is respectively charged into each cavity 331.If sample size be it is multiple, but less than 331 quantity of cavity when, can with sample
Tube body 31 is packed into the cavity 331 of the quantity such as product, since the internal diameter size of cavity 331 is more than the outer diameter of triggering linker 2,
When then connecting carrier 33, for not fitting in the cavity 331 of tube body 31, the contact head 241 of triggering linker 2 stretches into cavity 331
Interior, contact head 241 will not be acted on by pushing, then connectedness 25 will not move, and through-hole is blocked in one end 251 of connectedness 25 always
12, so that the barotropic gas in chamber 11 will not leak, to ensure that being normally carried out sample solution passes through filter membrane 32.
Further, above-mentioned filter further includes：Vessel 5, vessel 5 include holding space, hold space for putting
Sampling container 4 is set, holds space corresponding to the filter membrane 32 at tube body outlet 312；Placement sampling container 4 in space is held, so that
It is flow in sampling container 4 by the sample solution of filter membrane 32, in case sampling analysis is used.
When the quantity of cavity 331 be it is multiple when, vessel 5 include it is multiple it is spaced apart from each other hold space, each hold sky
Between correspond respectively to each cavity 331.It can design and hold quantity of the quantity in space equal to cavity 331, equipped with tube body 31
Cavity 331 is corresponding to hold placement sampling container 4 in space, to pick up the sample solution by filter membrane 32.
Specifically, plemum 1, carrier 33 and vessel 5 are detachably connected successively from top to bottom；Often carry out a sample mistake
After filter membrane operation, equal removable carrier 33 and vessel 5, to replace the carrier 33 equipped with new tube body 31 and filter membrane 32 and to put
It is equipped with the vessel 5 of sky sampling container 4, prepares sample filtering membrane operations next time.
Filter further includes supporting rack 6, and supporting rack 6 includes upright bar 61 and is sequentially connected to the of upright bar 61 from top to bottom
One support portion 62, the second support portion 63 and third support portion 64, wherein the first support portion 62 and the second support portion 63 slide respectively
It is connected to upright bar 61；Plemum 1 is connected to the first support portion 62, and carrier 33 is removably connected to the second support portion 63, vessel 5
It is removably connected to third support portion 64.First support portion 62 and the second support portion 63 can be slided relative to upright bar 61, be convenient for
The plemum 1 for being connected to the first support portion 62 and the carrier 33 for being connected to the second support portion 63 adjust separately its position, operation side
Just, wherein carrier 33 realized by second support portion 63 and be detachably connected with plemum 1, the second support portion 63 and carrier 33
Between mounting mode can be used connect, can be used snap fit connection between third support portion 64 and vessel 5, it is easy to operate easily
Row or carrier 33 and vessel 5 can also be realized by bolt to be detachably connected.Supporting rack 6 is so that plemum 1,33 and of carrier
Relative position between vessel 5 is easy to adjust quick, and facilitates the dismounting of carrier 33 and vessel 5.
Further, above-mentioned filter further includes：Pneumatic compression devices 7, pneumatic compression devices 7 include sending splenium 71, and splenium 71 is sent to connect
Chamber 11 is passed through, for providing air pressure into chamber 11；Pressure control device 8, pressure control device 8 include pressure measurement part and control
Laminate section (not shown), pressure measurement part are connected to the chamber 11, the pressure for measuring the barotropic gas in chamber 11,
What pressure control was partially attached to pneumatic compression devices 7 send splenium 71, for controlling the atmospheric pressure value for sending splenium 71 to be provided into the chamber 11.
Wherein, pneumatic compression devices 7 be chamber 11 in air pressure is provided, make there is barotropic gas in chamber 11, pneumatic compression devices 7 can be gas cylinder or
Person's piston structure (such as cylinder), pressure control device 8 are used to control the atmospheric pressure in chamber 11, avoid pressure excessive or too small,
So that barotropic gas makes sample solution pass through filter membrane when pushing the sample solution in tube body 31, it is particularly suitable for criticizing on a large scale
Amount filter membrane 32 is smoothed out.
Specifically, pneumatic compression devices 7 are nitrogen cylinder, and the gas outlet of nitrogen cylinder is that splenium 71, the gas outlet of nitrogen cylinder is sent to pass through
Pipeline 72 is communicated in chamber 11；Pressure control device 8 is pressure-regulating valve, and pressure-regulating valve is connected to and in communication with going out in nitrogen cylinder
Between gas port and chamber 11.Pressure-regulating valve detects the nitrogen pressure of nitrogen cylinder discharge, and nitrogen cylinder is adjusted according to the pressure
Gas outlet drain into the atmospheric pressure value in chamber 11, the gas outlet of nitrogen cylinder can be made to drain into the gas in chamber 11 by pressure-regulating valve
Pressure value is preset pressure value, also can control pressure regulating valve regulates and controls the air pressure in chamber 11 at any time according to on-site actual situations
Value.
Filter provided in an embodiment of the present invention, by the indoor barotropic gas of plemum chamber in the triggering for triggering linker
Portion is entered to from the air intake of triggering linker in air guide channel in the case of triggering, and is discharged from the exhaust outlet of triggering linker
To tube body, ensure that the import of triggering linker and tube body seals, then barotropic gas goes out the sample solution in tube body to tube body
Mouth pushes, and sample solution is made to pass through filter membrane, and during aforesaid operations, manual operation is less, without carrying out people in the prior art
Power presses the operation of syringe, reduces the working strength of staff, improves working efficiency；And compared with prior art, originally
The filter of inventive embodiments can control the pressure to sample solution by controlling the pressure of barotropic gas, avoid by people
Dynamics that power pressing belt comes situation not easy to control, to reduce since pressure excessive the phenomenon that causing filter membrane to rupture generates,
It improves sample and crosses film rate.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, according to
According to the technical spirit of the present invention to any simple modification, equivalent change and modification made by above example, this hair is still fallen within
In the range of bright technical solution.
Claims (10)
1. a kind of filter, which is characterized in that including：
Plemum, the plemum is interior to have chamber, is used to store barotropic gas in the chamber；
Linker is triggered, the plemum is connected to, air intake and exhaust outlet, the triggering is provided on the triggering linker
It is provided with the air guide channel for being connected to the air intake and the exhaust outlet in linker, triggering is provided on the triggering linker
Portion, the trigger unit is for making the air intake and the chamber；
Filter assemblies, the filter assemblies include tube body and filter membrane, and the tube body has the inlet and outlet being connected, the filter
Film is communicated in the outlet, and the triggering linker is for being sealed in the import, and the exhaust outlet is connected to the tube body.
2. filter according to claim 1, which is characterized in that
The quantity of the triggering linker is multiple, the number of the quantity of the tube body and the filter membrane with the triggering linker
It measures equal；
Each triggering linker is respectively used to be sealed in the import of each tube body.
3. filter according to claim 1 or 2, which is characterized in that
The triggering linker includes connectedness, contact head and elastomeric element；
One end of the connectedness blocks, and the other end of the connectedness is provided with the first opening, and the air intake is set to institute
It states on the side wall of connectedness, the first passage for being communicated in first opening and the air intake is provided in the connectedness；
One end of the contact head is provided with the second opening, and the exhaust outlet is set to the other end of the contact head, described to connect
The second channel for being connected to second opening and the exhaust outlet is provided in contact, one end of the contact head is connected to and in communication with
In the other end of the connectedness；
The air guide channel includes the first passage and the second channel；
Through-hole is provided in the cavity wall of the chamber, the connectedness sealing is connected to the through-hole, and the contact head is located at institute
It states outside plemum, the elastomeric element is provided between the contact head and the plemum, the contact head has sealing
Point, the size of the hermetic unit is more than the import of the tube body；
When the triggering linker is in off working state, the contact head is in discrete state, the company with the tube body
One end of parts blocks the through-hole；When the import of the tube body pushes the contact head, the contact head is by the pipe
The import of body seals, and the contact head drives the connectedness to the chamber indoor moving so that the air intake with it is described
It is connected in chamber, the elastomeric element has the contact head active force toward the tube body at this time；
Wherein, the contact head is the trigger unit.
4. filter according to claim 3, which is characterized in that
The contact head uses elaxtic seal；
The other end of the contact head is spherical, and the exhaust outlet is located at the side of the contact head other end, when the contact
When head seals the import of the tube body, the direction of the exhaust outlet and the axial direction of the tube body form default angle.
5. filter according to claim 4, which is characterized in that
Fixes sleeve, the both ends connection of the fixes sleeve, the fixes sleeve are sealedly connected on the outer wall of the plemum
Positioned at the through hole and it is communicated in the through-hole；
The connectedness is connection bar, and the connection bar is penetrated from the through-hole in the fixes sleeve, the connection bar and institute
It states and is sealed by the first sealing ring between fixes sleeve, the other end of the contact head is located at except the fixes sleeve；
The elastomeric element is spring, and the spring pocket is on the outer wall of the fixes sleeve；
It is sealed by second sealing ring between one end and the through-hole of the connection bar.
6. filter according to claim 3, which is characterized in that
The filter assemblies further include the carrier for containing the tube body, and the carrier is removably connected to the plemum,
The carrier includes cavity, and the both ends connection of the cavity, the tube body is packed into the cavity, the internal diameter size of the cavity
More than the outer diameter of the triggering linker；
When the carrier is connect with the plemum, the import of the tube body pushes the contact head, so that the contact head
The import of the tube body is sealed, the exhaust outlet is connected to the tube body, and the contact head drives the connectedness to described
Chamber indoor moving, so as to be connected in the air intake and the chamber；
When the quantity of the triggering linker and the tube body is multiple, the carrier includes multiple chambers spaced apart from each other
Body, each tube body are respectively charged into each cavity.
7. filter according to claim 6, which is characterized in that further include：
Vessel, the vessel include holding space, and the space that holds is described to hold space pair for placing sampling container
The filter membrane in tube body exit described in Ying Yu；
When the quantity of the cavity is multiple, the vessel includes multiple spaced apart from each other described holding space, Mei Gesuo
It states and holds space and correspond respectively to each cavity.
8. filter according to claim 7, which is characterized in that
The plemum, the carrier and the vessel are detachably connected successively from top to bottom；
The filter further includes supporting rack, and support frame as described above includes upright bar and is sequentially connected to the upright bar from top to bottom
First support portion, the second support portion and third support portion, wherein first support portion and second support portion slide respectively
It is connected to the upright bar；
The plemum is connected to first support portion, and the carrier is removably connected to second support portion, the appearance
Device room is removably connected to the third support portion.
9. the filter according to claim 1 or 8, which is characterized in that further include：
Pneumatic compression devices, the pneumatic compression devices include sending splenium, described that splenium is sent to be communicated in the chamber, for into the chamber
Air pressure is provided；
Pressure control device, the pressure control device include pressure measurement part and pressure control part, the pressure measurement part and the chamber
Room is connected to, and the pressure for measuring the indoor barotropic gas of the chamber, the pressure control is partially attached to sending for the pneumatic compression devices
Splenium, for controlling the atmospheric pressure value for sending splenium to be provided into the chamber.
10. filter according to claim 9, which is characterized in that
The pneumatic compression devices are nitrogen cylinder, and the gas outlet of the nitrogen cylinder send splenium, the gas outlet of the nitrogen cylinder logical to be described
Pipeline connection is crossed in the chamber；
The pressure control device is pressure-regulating valve, and the pressure-regulating valve is connected to and in communication in the gas outlet of the nitrogen cylinder
Between the chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710258604.XA CN108722188B (en) | 2017-04-19 | 2017-04-19 | Filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710258604.XA CN108722188B (en) | 2017-04-19 | 2017-04-19 | Filter device |
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| CN108722188A true CN108722188A (en) | 2018-11-02 |
| CN108722188B CN108722188B (en) | 2024-04-12 |
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| CN201710258604.XA Active CN108722188B (en) | 2017-04-19 | 2017-04-19 | Filter device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116530500A (en) * | 2023-06-26 | 2023-08-04 | 青岛市黄岛区中心医院 | Preservation device of nail emulsion surgical operation biopsy sample |
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| CN206676235U (en) * | 2017-04-19 | 2017-11-28 | 新疆农业科学院农业质量标准与检测技术研究所 | Filter |
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| US20040245163A1 (en) * | 2003-06-06 | 2004-12-09 | Gary Lim | Purification device for ribonucleic acid in large volumes, and method |
| CN101005894A (en) * | 2004-09-30 | 2007-07-25 | 富士胶片株式会社 | Composite filter cartridge, arranging frame for fliter cartridge and recovery container |
| US20090294385A1 (en) * | 2005-05-17 | 2009-12-03 | Universal Bio Research Co., Ltd | Filtration method, filter-incorporated tip, and filtration device |
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| CN116530500A (en) * | 2023-06-26 | 2023-08-04 | 青岛市黄岛区中心医院 | Preservation device of nail emulsion surgical operation biopsy sample |
| CN116530500B (en) * | 2023-06-26 | 2023-09-29 | 青岛市黄岛区中心医院 | Preservation device of nail emulsion surgical operation biopsy sample |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108722188B (en) | 2024-04-12 |
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