CN103058327B - Connecting and automatic changing device for needle cylinder type filter heads - Google Patents
Connecting and automatic changing device for needle cylinder type filter heads Download PDFInfo
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- CN103058327B CN103058327B CN201310007308.4A CN201310007308A CN103058327B CN 103058327 B CN103058327 B CN 103058327B CN 201310007308 A CN201310007308 A CN 201310007308A CN 103058327 B CN103058327 B CN 103058327B
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Abstract
The invention relates to a connecting and automatic changing device for needle cylinder type filter heads; the device comprises a bracket, a filter head guide rail, a filter head changing mechanism and a seal joint assembling and disassembling mechanism; the needle cylinder type filter heads move at the filter head guide rail in the same direction; the filter head changing mechanism controls the needle cylinder type filter heads to pass through and stop on the filer heat changing mechanism; and the seal joint assembling and disassembling mechanism mounts the seal joint on the currently used needle cylinder type filter head. The device provided by the invention has the following beneficial effects that: 1, the automation degree is high, the continuous filter of water sample is achieved without changing the filter heads by manpower; 2, the generality is high, the filter head can be a commercial product, other specially designed or processed consumables are not in need, and therefore the cost is low; and 3, the device can be used with an automatic analyzer for the online analysis of the water sample filtered in the field automatically, so the problems that the water in our country is relatively muddy and is difficult to monitor continuously and automatically are solved; and the device is wide in scientific research and market prospects and is significant in social and economic benefits.
Description
Technical field
The present invention relates to a kind of water sample filter plant, more particularly, relate to a kind of syringe-type filtering head and connect apparatus for automatic change.
Background technology
The turbidity of China's surface water, colourity and suspended particulate content are high, and plant plankton is many, greatly affect online analytical instrument and especially take the normal operation that light-intensity method is basic instrument, so sample must just can be analyzed after filtration.And at present more conventional Filter film type strainer and syringe-type filtering head exist the shortcomings such as complex operation, easy obstruction, and necessary off-line is affected, cannot realize on-the-spot automatic filtration continuously.
And domestic and international existing pot strainer is generally single-stage or cascade filtration, its pipeline and filtration medium are blocked very soon in the higher water body of turbidity, only can, for clean water body, be difficult to long-time running.Comparatively long-term suspended matter in filtering water automatically continuously how, and do not affect chemical form and the concentration of target compound, become the bottleneck of on-line analysis system.Therefore the filtering system that research can move for a long time automatically seems very important and necessary to on-the site analysis.
Chinese utility model patent ZL200920209633.8 discloses a kind of Mini-sized needle-cylinder water analysis filter, comprise syringe, upper cover plate, lower cover, porous supporting plate and filter membrane, described upper cover plate, porous supporting plate, lower cover install in the upper and lower order successively, and the porous supporting plate of laterally placing is installed in described upper cover plate; Described filter membrane is mounted on described porous supporting plate top layer; Described lower cover is horizontally installed in upper cover plate inside, and is positioned at porous supporting plate lower floor; Described upper cover plate and lower cover mid-way are respectively equipped with water-in and water outlet, and water-in and water outlet are positioned on same vertical axis; Water-in on the pin hole of described syringe and described upper cover plate just in time can coincide and stretch into.
Syringe-type water analysis filter described in the technical scheme of above-mentioned utility model has improved the volume problem of strainer, but still has the shortcomings such as complex operation, easy obstruction, and necessary off-line is affected, cannot realize on-the-spot automatic filtration continuously.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of syringe-type filtering head to connect apparatus for automatic change, used old filtering head removes, newly filtering head fixes, installs, seals and all can automatically carry out, filtering head replacement frequency can preset, this system can be connected with automatic analyser, is applicable to compared with the continuous on-line filtration in the scene of turbid water sample.
Technical scheme of the present invention is as follows:
Syringe-type filtering head connects an apparatus for automatic change, comprises support, filtering head guide rail, filtering head more converting mechanism, sealing connection mechanism for assembling-disassembling; Syringe-type filtering head moves along a direction at filtering head guide rail, filtering head change mechanism controls syringe-type filtering head filtering head more on converting mechanism by with stop, sealing connection mechanism for assembling-disassembling is arranged on sealing connection on the syringe-type filtering head of current use.
As preferably, on filtering head guide rail, have guide groove, described filtering head guide rail tilts rack-mount; Syringe-type filtering head is positioned in guide groove, the down motion on filtering head guide rail due to the deadweight of syringe-type filtering head.
As preferably, filtering head guide rail is two sub-guide rails that be arranged in parallel, between two sub-guide rails, has space, and syringe-type filtering head is positioned in space, due to the deadweight of syringe-type filtering head and down motion on filtering head guide rail.
As preferably, filtering head more converting mechanism comprises the first steering wheel, the second steering wheel, and the first steering wheel is connected with the first baffle plate, and the second steering wheel is connected with second baffle, the first baffle plate, second baffle under the first steering wheel, the second servo driving, extend towards the guide groove direction of filtering head guide rail respectively; There is difference of altitude in the first baffle plate, second baffle.
As preferably, the first steering wheel, the second steering wheel are separately positioned on the both sides of filtering head guide rail.
As preferably, the degree of depth that the first baffle plate, second baffle extend towards guide groove direction is water outlet, the water-in that is enough to stop syringe-type filtering head.
As preferably, sealing connection mechanism for assembling-disassembling is the 3rd steering wheel, the 4th steering wheel that is separately positioned on syringe-type filtering head both sides, the 3rd steering wheel is connected with compressing member, the 4th steering wheel connection sealing joint, compressing member, sealing connection under the 3rd steering wheel, the 4th servo driving, extend towards syringe-type filtering head respectively.
As preferably, the degree of depth that compressing member, sealing connection extend towards syringe-type filtering head, compressing member is enough to prop up water outlet, and sealing connection is enough to be mounted to the water-in of syringe-type filtering head.
As preferably, filtering head more converting mechanism, sealing connection mechanism for assembling-disassembling is connected with pilot circuit respectively, the work of pilot circuit controlled filter converting mechanism on first watch, sealing connection mechanism for assembling-disassembling.
Beneficial effect of the present invention is as follows:
1, level of automation is high, can complete the continuous filtration of water sample without artificial replacing filtering head;
2, universal strong, filtering head can be commercial prod, therefore do not need the running stores of other particular design or processing, cost is low;
3, the present invention can be used in conjunction with automatic analyser, carries out the on-line analysis of water sample after on-the-spot automatic filtration, solves the comparatively muddy difficult problem that is difficult to automatic monitor for continuously of China's water body, has scientific research widely and market outlook and economic results in society significantly.
Accompanying drawing explanation
Fig. 1 is that the structure of the embodiment of the present invention forms schematic diagram;
Fig. 2-Fig. 7 is the schematic diagram in the invention process process;
In figure: the 1st, support, the 2nd, filtering head guide rail, the 3rd, guide groove, the 4th, syringe-type filtering head, 5 is first steering wheels, 6 is second steering wheels, and 7 is the 3rd steering wheels, and 8 is the 4th steering wheels, and 9 is first baffle plates, the 10th, second baffle, the 11st, compressing member, the 12nd, sealing connection, the 13rd, pilot circuit.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Syringe-type filtering head connects an apparatus for automatic change, it is characterized in that, comprises support, filtering head guide rail, filtering head more converting mechanism, sealing connection mechanism for assembling-disassembling; Syringe-type filtering head moves along a direction at filtering head guide rail, filtering head change mechanism controls syringe-type filtering head filtering head more on converting mechanism by with stop, sealing connection mechanism for assembling-disassembling is arranged on sealing connection on the syringe-type filtering head of current use.
On filtering head guide rail, have guide groove, described filtering head guide rail tilts rack-mount; Syringe-type filtering head is positioned in guide groove, the down motion on filtering head guide rail due to the deadweight of syringe-type filtering head.
Another kind of implementation, filtering head guide rail is two sub-guide rails that be arranged in parallel, between two sub-guide rails, has space, syringe-type filtering head is positioned in space, the down motion on filtering head guide rail due to the deadweight of syringe-type filtering head.
Filtering head more converting mechanism comprises the first steering wheel, the second steering wheel, the first steering wheel is connected with the first baffle plate, the second steering wheel is connected with second baffle, and the first baffle plate, second baffle under the first steering wheel, the second servo driving, extend towards the guide groove direction of filtering head guide rail respectively; There is difference of altitude in the first baffle plate, second baffle.The first steering wheel, the second steering wheel are separately positioned on the both sides of filtering head guide rail.The degree of depth that the first baffle plate, second baffle extend towards guide groove direction is water outlet, the water-in that is enough to stop syringe-type filtering head.
Sealing connection mechanism for assembling-disassembling is the 3rd steering wheel, the 4th steering wheel that is separately positioned on syringe-type filtering head both sides, the 3rd steering wheel is connected with compressing member, the 4th steering wheel connection sealing joint, compressing member, sealing connection under the 3rd steering wheel, the 4th servo driving, extend towards syringe-type filtering head respectively.The degree of depth that compressing member, sealing connection extend towards syringe-type filtering head, compressing member is enough to prop up water outlet, and sealing connection is enough to be mounted to the water-in of syringe-type filtering head.
Filtering head more converting mechanism, sealing connection mechanism for assembling-disassembling is connected with pilot circuit respectively, the work of pilot circuit controlled filter converting mechanism on first watch, sealing connection mechanism for assembling-disassembling.
Embodiment
Syringe-type filtering head 4 as shown in Figure 1 connects apparatus for automatic change, for the connection of one-shot injector formula filtering head 4, automatically change, be provided with support 1, filtering head guide rail 2, four steering wheels (the first steering wheel 5, the second steering wheel 6, the 3rd steering wheel 7, the 4th steering wheel 8), pilot circuit 13 and power supplys.
Support 1 supports all parts, makes it counterweight reasonable, and holding device is stable; Filtering head guide rail 2 for according to the filtering head guide rail 2 described in the designed guide groove 3(of selected filtering head model with can be two sub-guide rails that be arranged in parallel, between two sub-guide rails, have space, syringe-type filtering head 4 is positioned in space), guarantee that filtering head slides smoothly and do not come off within it; Sealed casing pipe is the sealing connection 12 matching with selected filtering head, guarantees filtering head compacting to seal; Four steering wheels and accessory be respectively used to end untapped filtering head preventing that it from gliding, the filtering head of fixedly wish use in place, filtering head and Sealed casing pipe are compressed to guarantee its watertightness; Pilot circuit 13 and power supply be in order to control the action successively of steering wheel, automatically completes the operations such as the replacing of filtering head, fixing, sealing, can carry out standalone version control or connect computer expert crossing PC control by micro-chip, can set filtration time.
Sealed casing pipe is the sealing connection 12 matching with selected syringe-type filtering head 4, guarantees that Sealed casing pipe can be inserted in filtering head intake-outlet compacting sealing, and its material can be tetrafluoroethylene etc.The water-in of one-shot injector formula filtering head 4, water outlet are standard interface.
Four steering wheels and accessory can be used for ending untapped filtering head with prevent it glides, fixedly wish is used filtering head in place, by filtering head and its watertightness of Sealed casing pipe compression assurance.
The algorithm of installing described in the present embodiment is as follows:
A plurality of syringe-type filtering heads 4 can be packed on the guide groove 3 of filtering head guide rail 2; After device switches on power, can by pilot circuit 13, filtration time be set according to the muddy degree of water sample, effectively and more frugally to use filtering head.
Step 1, startup filter, the 3rd steering wheel 7 and the 4th steering wheel 8 drive compressing members 11 and sealing connection 12 to open (Fig. 2) simultaneously;
After the filtration time of setting finishes, repeat above step, automatically change filtering head.
Actual measurement one: according to the monitoring method for normalizing of China, prepare different turbidity water samples, adopt 0.45 μ m filtering head, the removal effect of turbidity is as shown in table 1 after the present invention filters.
Table 1: the removal effect of filtering head to different water sample turbidity
From table 1, this automatic filtering unit running condition is good, and the removal effect of water sample depends on the filter membrane aperture specification of filtering head.
Actual measurement two: gather actual water sample, adopt 0.45 μ m filtering head, the removal effect of turbidity is as shown in table 2 after the present invention filters.
Table 2: the removal effect of filtering head to actual water sample turbidity
From table 2, this automatic filtering unit running condition is good, and the removal effect of water sample depends on the filter membrane aperture specification of filtering head.
Above-described embodiment is only for the present invention is described, and not as limitation of the invention.So long as according to technical spirit of the present invention, to above-described embodiment change, modification etc. all will drop in the scope of claim of the present invention.
Claims (6)
1. syringe-type filtering head connects an apparatus for automatic change, it is characterized in that, comprises support, filtering head guide rail, filtering head more converting mechanism, sealing connection mechanism for assembling-disassembling; Syringe-type filtering head moves along a direction at filtering head guide rail, filtering head change mechanism controls syringe-type filtering head filtering head more on converting mechanism by with stop, sealing connection mechanism for assembling-disassembling is arranged on sealing connection on the syringe-type filtering head of current use;
On filtering head guide rail, have guide groove, described filtering head guide rail tilts rack-mount; Syringe-type filtering head is positioned in guide groove, the down motion on filtering head guide rail due to the deadweight of syringe-type filtering head;
Filtering head more converting mechanism comprises the first steering wheel, the second steering wheel, the first steering wheel is connected with the first baffle plate, the second steering wheel is connected with second baffle, and the first baffle plate, second baffle under the first steering wheel, the second servo driving, extend towards the guide groove direction of filtering head guide rail respectively; There is difference of altitude in the first baffle plate, second baffle;
Sealing connection mechanism for assembling-disassembling is the 3rd steering wheel, the 4th steering wheel that is separately positioned on syringe-type filtering head both sides, the 3rd steering wheel is connected with compressing member, the 4th steering wheel connection sealing joint, compressing member, sealing connection under the 3rd steering wheel, the 4th servo driving, extend towards syringe-type filtering head respectively.
2. syringe-type filtering head according to claim 1 connects apparatus for automatic change, it is characterized in that, filtering head guide rail is two sub-guide rails that be arranged in parallel, between two sub-guide rails, have space, syringe-type filtering head is positioned in space, the down motion on filtering head guide rail due to the deadweight of syringe-type filtering head.
3. syringe-type filtering head according to claim 1 connects apparatus for automatic change, it is characterized in that, the first steering wheel, the second steering wheel are separately positioned on the both sides of filtering head guide rail.
4. syringe-type filtering head according to claim 1 connects apparatus for automatic change, it is characterized in that, the degree of depth that the first baffle plate, second baffle extend towards guide groove direction is water outlet, the water-in that is enough to stop syringe-type filtering head.
5. syringe-type filtering head according to claim 1 connects apparatus for automatic change, it is characterized in that, the degree of depth that compressing member, sealing connection extend towards syringe-type filtering head, compressing member is enough to prop up water outlet, and sealing connection is enough to be mounted to the water-in of syringe-type filtering head.
6. syringe-type filtering head according to claim 1 connects apparatus for automatic change, it is characterized in that, filtering head more converting mechanism, sealing connection mechanism for assembling-disassembling is connected with pilot circuit respectively, the work of pilot circuit controlled filter converting mechanism on first watch, sealing connection mechanism for assembling-disassembling.
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CN201310007308.4A CN103058327B (en) | 2013-01-09 | 2013-01-09 | Connecting and automatic changing device for needle cylinder type filter heads |
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CN201310007308.4A CN103058327B (en) | 2013-01-09 | 2013-01-09 | Connecting and automatic changing device for needle cylinder type filter heads |
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CN111282098B (en) * | 2020-03-12 | 2021-09-24 | 崔海燕 | Automatic needle replacing device for medical injection |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101721850A (en) * | 2008-10-13 | 2010-06-09 | 黄小雷 | Filtering apparatus with fully-automatic filter membrane replacement |
CN201500480U (en) * | 2009-09-11 | 2010-06-09 | 上海海争电子科技有限公司 | Mini-sized needle-cylinder water analysis filter |
CN202006577U (en) * | 2011-03-30 | 2011-10-12 | 山东七星电气科技发展有限公司 | Automatic screen changing device for filling adhesive production line |
CN202049078U (en) * | 2011-04-20 | 2011-11-23 | 上海摩特威尔自控设备工程有限公司 | Cup-type online water sample filtering device |
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JPH11156350A (en) * | 1997-11-27 | 1999-06-15 | Bridgestone Corp | Mechanism for attaching and detaching cartridge for water purification device |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101721850A (en) * | 2008-10-13 | 2010-06-09 | 黄小雷 | Filtering apparatus with fully-automatic filter membrane replacement |
CN201500480U (en) * | 2009-09-11 | 2010-06-09 | 上海海争电子科技有限公司 | Mini-sized needle-cylinder water analysis filter |
CN202006577U (en) * | 2011-03-30 | 2011-10-12 | 山东七星电气科技发展有限公司 | Automatic screen changing device for filling adhesive production line |
CN202049078U (en) * | 2011-04-20 | 2011-11-23 | 上海摩特威尔自控设备工程有限公司 | Cup-type online water sample filtering device |
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Application publication date: 20130424 Assignee: Xiamen Standards Scientific Instrument Co., Ltd. Assignor: Xiamen University Contract record no.: 2014350000115 Denomination of invention: Connecting and automatic changing device for needle cylinder type filter heads Granted publication date: 20140409 License type: Exclusive License Record date: 20141126 |
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