CN208212691U - automatic filtration device controlled by P L C - Google Patents
automatic filtration device controlled by P L C Download PDFInfo
- Publication number
- CN208212691U CN208212691U CN201721922609.XU CN201721922609U CN208212691U CN 208212691 U CN208212691 U CN 208212691U CN 201721922609 U CN201721922609 U CN 201721922609U CN 208212691 U CN208212691 U CN 208212691U
- Authority
- CN
- China
- Prior art keywords
- syringe
- piston
- gag lever
- lever post
- limit probe
- 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.)
- Expired - Fee Related
Links
Abstract
the utility model provides an automatic filtration device of PLC control, including support (5), set up syringe (1) on support (5) and PLC controller (15), syringe (1) include piston (2), with piston rod (4) that piston (2) are connected, with drive arrangement (3) that the piston rod is connected, with pipette (7) that the syringe is connected and with fluid-discharge tube (8) that the syringe is connected, be provided with feed liquor valve (9) on pipette (7) be provided with needle type filter (11) on fluid-discharge tube (8), needle type filter (11) with be provided with fluid-discharge valve (10) between the entry of fluid-discharge tube (8), be provided with identification mark (12) on piston (2), still include gag lever post (6).
Description
Technical field
The utility model belongs to filter device field, more particularly, to a kind of automatic filtering unit.
Background technique
For Physico-chemical tests, before in sample to be tested higher level, sample introduction is analyzed, it is desirable that sample to be tested pretreatment liquid should ensure that without miscellaneous
Otherwise matter particle will block the sampling system and other analysis systems of instrument, or even can generate interference to measurement, influence to detect
As a result accuracy.Currently, widely applied filter device is syringe filter in the lab, filter type is by pin type
Filter is mounted on the nipple of syringe, is pushed syringe piston handle by manual compression and is carried out to the liquid in the syringe
Filtering.It needs to filter in view of often having high-volume pretreatment liquid in daily monitoring, therefore manual compression piston handle work
Make inefficient.In order to solve the above problem, the Chinese patent of publication number CN206229041U discloses a kind of automatic filtering unit,
It include: the frame being integrally formed and hydraulic cylinder, lower platen and syringe fixing layer in the frame, in the frame
A limiting slot is fixed in opposite upright side walls respectively, syringe fixing layer is mounted in two limiting slots, in syringe
It is formed with multiple syringe fixing grooves on fixing layer, a syringe and the syringe are placed in each syringe fixing groove
Nipple is passed through from the lower surface of the syringe fixing layer, is equipped with syringe filter on the nipple；It is solid in the syringe
It is provided with the horizontal lower platen above given layer, the upper surface of described lower platen and one end of multiple hydraulic cylinders are fixedly mounted with, institute
The top of the other end and frame of stating hydraulic cylinder is fixedly mounted with.But the automatic filtering unit has following limitation:
The pretreatment liquid being automatically drained out in syringe is only realized, still needs to manually suck the pretreatment liquid with filtering manually
In syringe, process further relates to syringe be taken out and removed Supramammillary syringe filter etc. from fixing groove, operation
Cumbersome, the degree of automation is not high.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of automatic filtering unit, is able to achieve the automation imbibition of syringe
And drain, improve working efficiency.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of automatic fitration dress of PLC control
It sets, including bracket, syringe on the bracket and PLC controller is set；
The syringe includes piston, the piston rod connecting with the piston, the driving device connecting with the piston rod,
The pipette being connect with the syringe and the drain pipe being connect with the syringe,
Liquid feed valve is provided in the pipette
It is provided with syringe filter on the drain pipe, is arranged between the syringe filter and the entrance of the drain pipe
There is tapping valve；
Having identification mark is set on the piston,
Further include gag lever post, upper limit probe and lower limit probe are provided on the gag lever post.With the above arrangement, can
To detect the motion conditions of piston, and it is sent to PLC controller.
Preferably, the upper limit probe is arranged on gag lever post identification when being located at top dead centre with the piston and marks
The corresponding position in the position of will, lower limit probe are arranged on gag lever post knowledge when being located at lower dead center with the piston
The corresponding position in the position not indicated.With the above arrangement, guaranteeing syringe imbibition drain to the full extent, filter efficiency is more
It is high.
The driving device, tapping valve, liquid feed valve, upper limit probe and lower limit probe are controlled with the PLC respectively
Device is connected.
With the above arrangement, can carry out syringe imbibition by PLC controller, the automatic control of drain is realized automatic
Filter effect.
The driving device includes cylinder, hydraulic cylinder, driving motor.
Preferably, select cylinder as driving device, small in size, operating noise is small, is suitble to the working environment in laboratory.
Preferably, it is provided with friction washer on piston, the frictional force of piston Yu the syringe inner wall can be increased, make piston
It moves more steady.
The utility model has the advantages and positive effects of: due to the adoption of the above technical scheme, being able to carry out pre-treatment
The automatic fitration of liquid has structure simple, is not necessarily to manual imbibition, runs the advantages that quiet steadily suitable laboratory uses.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention
In figure:
1, syringe 2, piston 3, driving device
4, piston rod 5, bracket 6, gag lever post
7, inlet tube 8, drain pipe 9, liquid feed valve
10, tapping valve 11, syringe filter 12, distinguishing mark
13, upper limit probe 14, lower limit probe 15, PLC controller
Specific embodiment
As Fig. 1, an embodiment of the present invention structural schematic diagram shown in, the utility model includes bracket 5, setting propping up
Syringe 1 and PLC controller 15 on frame；
Syringe 1 includes piston 2, the piston rod 4 connecting with piston 2, the driving device 3 connecting with piston rod 4, with injection
The pipette 7 and the drain pipe 8 being connect with syringe 1 that device 1 connects,
Liquid feed valve 9 is provided in pipette 7
It is provided with syringe filter 11 on drain pipe 8, is provided with drain between syringe filter 11 and the entrance of drain pipe 8
Valve 10；
Having identification mark 12 is set on piston 2,
Further include gag lever post 6, in the present embodiment, the position of distinguishing mark 12 when piston 2 is located at top dead centre is corresponded on gag lever post 6
It installs and is equipped with upper limit probe 13, the position that distinguishing mark 12 when piston 2 is located at lower dead center is corresponded on gag lever post 6 is provided with lower limit
Position probe 14；
With the above arrangement, can detecte the motion conditions of piston 2, and it is sent to PLC controller 15.Guarantee that syringe exists
Imbibition drain to the full extent, filter efficiency are higher.
Driving device 3, tapping valve 10, liquid feed valve 9, upper limit probe 13 and lower limit probe 14 are controlled with PLC respectively
Device 15 is connected.
Cylinder, hydraulic cylinder, driving motor can be used in driving device 3.Driving device 3 uses cylinder in the present embodiment, as
Driving device, small in size, operating noise is small, is suitble to the working environment in laboratory.
Friction washer is provided on piston 2 in the present embodiment.The frictional force that piston 2 Yu 1 inner wall of syringe can be increased, makes to live
2 movement of plug is more steady.
The course of work of the present embodiment: before work starts, piston 2 is located at lower dead center, and liquid feed valve 9 is opened, and tapping valve 10 closes
It closes, after starting filtering, the control driving cylinder band piston 2 of PLC controller 15 is moved upwards, to be processed due to the effect of air pressure
Liquid is inhaled into syringe 1 from inlet tube 7, and when piston 2 moves to top dead centre, upper limit probe 13 is sensed on piston 2
Distinguishing mark 12 simultaneously sends information to PLC controller 15, and PLC controller 15 closes liquid feed valve 9, opens tapping valve 10, PLC control
The control of device 15 driving cylinder band piston 2 processed moves downward, and the liquid to be processed in syringe 1 is discharged from drain pipe 8, through needle
Formula filter 11 filters.When piston 2 moves to lower dead center, lower limit probe 14 senses the distinguishing mark 12 on piston 2 simultaneously
PLC controller 15 is sent information to, PLC controller 15 opens liquid feed valve 9, closes tapping valve 10, while controlling driving cylinder
Band piston 2 moves upwards, and carries out imbibition next time.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (4)
1. a kind of automatic filtering unit of PLC control, it is characterised in that: including bracket (5), be arranged on the bracket (5)
Syringe (1) and PLC controller (15)；
The syringe (1) includes piston (2), and the piston rod (4) connecting with the piston (2) is connect with the piston rod (4)
Driving device (3), the pipette being connect with the syringe (7) and the drain pipe (8) being connect with the syringe (1),
Liquid feed valve (9) are provided on the pipette (7)
It is provided with syringe filter (11) on the drain pipe (8), the syringe filter (11) enters with the drain pipe (8)
Tapping valve (10) are provided between mouthful；
Having identification mark (12) are set on the piston (2),
Further include gag lever post (6), upper limit probe (13) and lower limit probe (14) are provided on the gag lever post (6)；
The driving device (3), tapping valve (10), liquid feed valve (9), upper limit probe (13) and lower limit probe (14) are distinguished
It is connected with the PLC controller (15).
2. the automatic filtering unit of PLC control according to claim 1, it is characterised in that: the upper limit pops one's head in (13)
It is arranged on gag lever post (6) the corresponding position in the position of the distinguishing mark (12) when being located at top dead centre with the piston (2),
Lower limit probe (14) is arranged on gag lever post (6) distinguishing mark when being located at lower dead center with the piston (2)
(12) the corresponding position in position.
3. the automatic filtering unit of PLC control according to claim 1, it is characterised in that: be provided on the piston (2)
Friction washer.
4. the automatic filtering unit of PLC control according to any one of claim 1 to 3, it is characterised in that: the driving
Device (3) includes cylinder, hydraulic cylinder, driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721922609.XU CN208212691U (en) | 2017-12-30 | 2017-12-30 | automatic filtration device controlled by P L C |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721922609.XU CN208212691U (en) | 2017-12-30 | 2017-12-30 | automatic filtration device controlled by P L C |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208212691U true CN208212691U (en) | 2018-12-11 |
Family
ID=64533263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721922609.XU Expired - Fee Related CN208212691U (en) | 2017-12-30 | 2017-12-30 | automatic filtration device controlled by P L C |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208212691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359690A (en) * | 2020-03-23 | 2020-07-03 | 徐州工程学院 | Hand-held type moves liquid and filters all-in-one |
-
2017
- 2017-12-30 CN CN201721922609.XU patent/CN208212691U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359690A (en) * | 2020-03-23 | 2020-07-03 | 徐州工程学院 | Hand-held type moves liquid and filters all-in-one |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20201230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |