CN203745324U - Particle filter membrane weighing device - Google Patents
Particle filter membrane weighing device Download PDFInfo
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- CN203745324U CN203745324U CN201320756426.0U CN201320756426U CN203745324U CN 203745324 U CN203745324 U CN 203745324U CN 201320756426 U CN201320756426 U CN 201320756426U CN 203745324 U CN203745324 U CN 203745324U
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- Prior art keywords
- filter membrane
- rotary door
- windproof
- support
- door
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Abstract
The utility model relates to a particle filter membrane weighing device which comprises a weighing platform, a weight-sensitive sensor fixed on the weighing platform, a filter membrane support fixed on the weight-sensitive sensor and a bracket with a perforation hole in the middle, wherein the filter membrane support is inserted in the perforation hole and extends upwards; a wind prevention rotary door and a wind prevention blocking door are rotatably arranged around a first shaft on the bracket, and the wind prevention blocking door is arranged on the bracket and positioned at the outer side of the wind prevention rotary door; the wind prevention rotary door comprises a wind prevention rotary door body with an opening and a transparent view window fixed at the upper part of the wind prevention rotary door body; and a drive motor is fixedly arranged on the bracket, a synchronizing wheel is fixed on an output shaft of the drive motor, and a transmission mechanism is arranged between the synchronizing wheel and the wind prevention rotary door. When a particle filter membrane needs to be weighed, the wind prevention rotary door is arranged in a closed position, so that a closed environment is provided for weighing of the filter membrane, thereby avoiding the interference and influence of airflow on the weighing result, and improving the accuracy of the weighing result. Besides, the pollution to the filter membrane is avoided as much as possible, and the service efficiency of the filter membrane is improved.
Description
Technical field
the utility model relates to a kind of Particulate filter weighing device.
Background technology
particulates thing of the prior art pollutes is not only the main cause that causes haze weather, and particularly pellet (PM2.5: be less than or equal to 2.5 micron particles things) can impact the health of human body, mainly respiratory system and cardiovascular system is damaged.Therefore particulate in air concentration is one of major criterion judging air quality.
at present, the assay method of particulate in air concentration and motor vehicle exhaust emission particle concentration can be divided into manual monitoring method and automatic monitoring method.Manual monitoring method is called again gravimetric method, and what monitoring method was most widely used at present automatically is β attenuation sensors and trace vibration weighing apparatus method and light scattering method.Although β attenuation sensors and trace vibration weighing apparatus method are putative standard methods, can automatically monitor, simple to operate, are convenient to realize, monitoring method can't replace manual monitoring method completely automatically.For manual detection method, its principle, the most directly with directly perceived, can reflect the concentration of particle comparatively accurately, is also the Main Basis that judges automatic monitoring method accuracy.
gravimetric method is exactly that the weight before and after sampling compares analysis by filter membrane, draws PM2.5 particle concentration value in this regional air, and committed step is wherein weighing to filter membrane.Being usually used in the sampling membrane specification that PM2.5 particle concentration detects is that diameter is organic filter membranes such as the teflon, Polyvinylchloride, polypropylene, cellulose mixture of 47mm, its background weight is between 80mg to 140mg, take PM2.5 daily mean of concentration as example as 0.035mg, the accumulative total quality of particle after 24 hours of sampling is 0.84mg, and after sampling 24 hours according to practice, the accumulative total quality of particle is generally also in 1mg left and right.Therefore weighing to the having relatively high expectations of analytical balance of the dense filter membrane of PM2.5 particle, calibrating scale division value is no more than 0.1mg.
in prior art, for realizing the Particulate filter weighing device that gravimetric method is weighed, comprise weighing unit, be fixed on weight induction sensor on described weighing unit, be fixed on the support that filter membrane supports, centre has perforation on described weight induction sensor, described filter membrane supports and is inserted in described perforation and protrudes upward.
Utility model content
the technical problems to be solved in the utility model is to provide a kind of Particulate filter weighing device.
in order to solve the problems of the technologies described above, a kind of technical scheme that the utility model adopts is: a kind of Particulate filter weighing device, comprise weighing unit, be fixed on the weight induction sensor on described weighing unit, the filter membrane being fixed on described weight induction sensor supports, centre has the support of perforation, described filter membrane supports and is inserted in described perforation and protrudes upward, on described support, rotate and be provided with windproof rotary door around the first axle, be arranged at the Windproof shield door in the windproof rotary door outside on described support and described in being positioned at, described windproof rotary door comprises the windproof rotary door body with opening, be fixed on the transparent view window on the top of described windproof rotary door body, described filter membrane supports the inner side that is covered at described windproof rotary door, described windproof rotary door has open position and make-position, under described windproof rotary door is in an open position, described opening departs from described Windproof shield door, under described windproof rotary door is in the close position, described opening is facing to described Windproof shield door, on described support, be fixedly installed drive motor, on the output shaft of described drive motor, be fixed with synchronizing wheel, between described synchronizing wheel and described windproof rotary door, be provided with and control the gear train that described windproof rotary door rotates and changes around the first described axle between open position and make-position.
in some embodiment, described Windproof shield door is arranged on described support along radially sliding of the first described axle, is provided with the elastic component that the described Windproof shield door making is tending towards being close to described windproof rotary door between described Windproof shield door and described support.
in some embodiment, described gear train comprises the driving-belt on bottom and the synchronizing wheel that is set in described windproof rotary door.
in some embodiment, along the axle center of the first axle taking described, the circumferencial direction as the center of circle extends described windproof rotary door body.
in some embodiment, the axial line of the center line that described filter membrane supports and the first described axle coincides.
in some embodiment, on described weighing unit, be provided with the digital display screen for showing the filter membrane weight that described weight induction sensor sensing goes out.
in some embodiment, on described weighing unit, be provided with the data-interface of the filter membrane weight for going out to the described weight induction sensor sensing of external unit output.
in some embodiment, described filter membrane is supported for hollow.
in some embodiment, have filter membrane box and support on described support, described filter membrane box supports and is arranged at the surrounding of described filter membrane support and supports lower than described filter membrane.
scope of the present utility model, is not limited to the technical scheme that the particular combinations of above-mentioned technical characterictic forms, and also should contain by above-mentioned technical characterictic or its equivalent feature and carry out combination in any and other technical scheme of forming simultaneously.The technical characterictic that such as, in above-mentioned feature and the application disclosed (but being not limited to) has a similar functions is replaced mutually and technical scheme of forming etc.
because technique scheme is used, the utility model compared with prior art has following advantages: in the time that needs are weighed Particulate filter, windproof rotary door is placed in to make-position, thereby an airtight environment is provided to weighing of filter membrane, avoid interference and the impact of air-flow on weighing results, improve the accuracy rate of weighing results.And avoid the pollution to filter membrane as far as possible, improved the service efficiency of filter membrane.
Brief description of the drawings
accompanying drawing 1 is vertical view of the present utility model;
accompanying drawing 2 is front elevation of the present utility model (Windproof shield door and support junction partial cutaway);
accompanying drawing 3 is stereographic map of the present utility model (under windproof rotary door is in the close position);
accompanying drawing 4 is stereographic map of the present utility model (under windproof rotary door is in an open position);
wherein: 1, weighing unit; 2, filter membrane supports; 3, support; 4, windproof rotary door; 5, Windproof shield door; 6, windproof rotary door body; 7, view window; 8, drive motor; 9, synchronizing wheel; 10, driving-belt; 11, elastic component; 12, weight induction sensor; 13, Windproof shield door slide block; 14, digital display screen; 15, opening; 16, the first axle; 17, filter membrane; 18, filter membrane box supports.
Embodiment
as shown in the drawings, a kind of filter membrane weighing device, comprise weighing unit 1, be fixed on weight induction sensor 12 on described weighing unit 1, be fixed on the support 3 that filter membrane on described weight induction sensor 12 supports 2, centre has perforation, described filter membrane supports 2 and is inserted in described perforation and protrudes upward.
on described support 3, rotate around the first axle 16 the Windproof shield door 5 that is provided with windproof rotary door 4, is arranged at windproof rotary door 4 outsides on described support 3 and described in being positioned at, described windproof rotary door 4 comprise have opening 15 windproof rotary door body 6, be fixed on the transparent view window 7 on the top of described windproof rotary door body 6, described filter membrane support 2 is covered at the inner side of described windproof rotary door 4, and view window 7 can be transparent plastics or glass.
described windproof rotary door 4 has open position and make-position, under described windproof rotary door 4 is in an open position, described opening 15 departs from described Windproof shield door 5, under described windproof rotary door 4 is in the close position, described opening 15 faces toward described Windproof shield door 5, thereby makes closed space of the interior formation of windproof rotary door 4.
the command switch that is fixedly installed drive motor 8 on described support 3, works for controlling drive motor 8.On the output shaft of described drive motor 8, be fixed with synchronizing wheel 9, between described synchronizing wheel 9 and described windproof rotary door 4, be provided with and control the gear train that described windproof rotary door 4 rotates and changes around the first described axle 16 between open position and make-position.Gear train can adopt gear drive, chain transmission, adopts band transmission in the utility model, and described gear train comprises the driving-belt 10 on bottom and the synchronizing wheel 9 that is set in described windproof rotary door 4.
along the axle center of the first axle 16 taking described, the circumferencial direction as the center of circle extends described windproof rotary door body 6, and windproof rotary door body 6 is the cylindrical tube with opening 15 substantially.
the axial line that described filter membrane supports 2 center line and described the first axle 16 coincides as preferably.
described Windproof shield door 5 is arranged on described support 3 along radially sliding of the first described axle 16, between described Windproof shield door 5 and described support 3, be provided with the elastic component 11 that the described Windproof shield door 5 making is tending towards being close to described windproof rotary door 4, when under windproof rotary door 4 lower still open position in the close position, under the effect of elastic component 11, between windproof rotary door 4 and Windproof shield door 5, coordinate all the time closely.On support 3, have the guide rail radially extending that length is the center of circle along the first axle 16, described Windproof shield door 5 bottoms are fixed with slide block, and this slide block matches with guide rail.What to make Windproof shield door 5 can be the center of circle along the first axle 16 radially has certain degree of freedom.
on support 3, be fixedly installed spring supporting, elastic component 11 height are arranged between described spring supporting and the slide block of Windproof shield door 5 bottoms; By the pressuring action of described elastic component 11, the windproof rotary door 4 of described Windproof shield door 5 along the axle center taking the first axle 6 as the center of circle fitted tightly, and the spinning movement when the windproof rotary door open and close does not impact to described windproof rotary door 4.
on described weighing unit 1, be provided with the digital display screen for showing filter membrane 17 weight that described weight induction sensor 12 induces.
on described weighing unit 1, be provided with the data-interface of filter membrane 17 weight for inducing to the described weight induction sensor 12 of external unit output.Electrical connection between digital display screen and data-interface, weight induction sensor 12 is the conventional structure in electronic weighing device, is not main points of the present utility model, repeats no more.
the course of work: drive motor 8 moves after receiving the instruction of opening the door of command switch, drive windproof rotary door 4 to rotate by synchronizing wheel 9 and driving-belt 10, make windproof rotary door 4 stop action in the rear drive of open position shown in Fig. 4 motor 8, now windproof rotary door 4, between view window 7 and Windproof shield door 5, form semi-enclosed cavity, be convenient to getting of filter membrane 17, put, filter membrane 17 is placed in filter membrane box, on support 3, there is filter membrane box and support 18, filter membrane box supports 18 and is arranged at filter membrane support 2 around, and support 2 lower than filter membrane, filter membrane box bottom has hole, while weighing, filter membrane supports 2 and is inserted in the hole of filter membrane box bottom, prop filter membrane, filter membrane box separates with filter membrane, filter membrane box rests filter membrane box and supports on 18,
described drive motor 8 receives action again after the instruction of closing the door of command switch, drive windproof rotary door 4 reverse rotations by synchronizing wheel 9 and driving-belt 10, make windproof rotary door 4 stop action in the rear drive of make-position shown in Fig. 3 motor 8, now between windproof rotary door 4, view window 7 and Windproof shield door 5, form totally enclosed cavity, the impact that can avoid air-flow to weigh on filter membrane 17;
the described instruction send mode that opens the door and close the door does not do the restriction of concrete form;
described filter membrane 17 is put into or is taken out during in state shown in Fig. 4 at windproof rotary door;
described filter membrane 17 takes weight during in state shown in Fig. 3 at windproof rotary door;
while weighing, described filter membrane 17 is placed in the filter membrane being connected with weight induction sensor 12 and supports on 2; For reducing the contact area of filter membrane 17 and the equipment of weighing, it is hollow that described filter membrane supports 2; The weight of the filter membrane 17 that described weight induction sensor 12 is measured is illustrated by digital display screen 14.
as mentioned above, we are illustrated according to aim of the present utility model completely, but the utility model is not limited to above-described embodiment and implementation method.The practitioner of correlative technology field can carry out different variations and enforcement in the scope of technological thought license of the present utility model.
Claims (9)
1. a Particulate filter weighing device, comprise weighing unit (1), be fixed on the weight induction sensor (12) on described weighing unit (1), the filter membrane being fixed on described weight induction sensor (12) supports (2), centre has the support (3) of perforation, described filter membrane supports (2) and is inserted in described perforation and protrudes upward, it is characterized in that: described support (3) is upper to rotate and be provided with windproof rotary door (4) around the first axle (16), be arranged at described support (3) and go up and be positioned at the Windproof shield door (5) in described windproof rotary door (4) outside, described windproof rotary door (4) comprises the have opening windproof rotary door body (6) of (15), be fixed on the transparent view window (7) on the top of described windproof rotary door body (6), described filter membrane support (2) is covered at the inner side of described windproof rotary door (4), described windproof rotary door (4) has open position and make-position, under described windproof rotary door (4) is in an open position, described opening (15) departs from described Windproof shield door (5), under described windproof rotary door (4) is in the close position, described opening (15) is facing to described Windproof shield door (5), on described support (3), be fixedly installed drive motor (8), on the output shaft of described drive motor (8), be fixed with synchronizing wheel (9), between described synchronizing wheel (9) and described windproof rotary door (4), be provided with and control the gear train that described windproof rotary door (4) rotates and changes around described the first axle (16) between open position and make-position.
2. Particulate filter weighing device according to claim 1, it is characterized in that: it is upper that described Windproof shield door (5) is arranged on described support (3) along radially sliding of described the first axle (16), is provided with the elastic component (11) that the described Windproof shield door (5) making is tending towards being close to described windproof rotary door (4) between described Windproof shield door (5) and described support (3).
3. Particulate filter weighing device according to claim 1, is characterized in that: described gear train comprises the driving-belt (10) on bottom and the synchronizing wheel (9) that is set in described windproof rotary door (4).
4. Particulate filter weighing device according to claim 1, is characterized in that: along the axle center of the first axle (16) taking described, the circumferencial direction as the center of circle extends described windproof rotary door body (6).
5. Particulate filter weighing device according to claim 1, is characterized in that: the axial line of the center line of described filter membrane support (2) and described the first axle (16) coincides.
6. Particulate filter weighing device according to claim 1, is characterized in that: on described weighing unit (1), be provided with the digital display screen for showing filter membrane (17) weight that described weight induction sensor (12) induces.
7. Particulate filter weighing device according to claim 1, is characterized in that: the data-interface that is provided with filter membrane (17) weight for inducing to the described weight induction sensor (12) of external unit output on described weighing unit (1).
8. Particulate filter weighing device according to claim 1, is characterized in that: described filter membrane support (2) is hollow.
9. Particulate filter weighing device according to claim 1, it is characterized in that: on described support (3), have filter membrane box and support (18), described filter membrane box supports (18) and is arranged at the surrounding of described filter membrane support (2) and supports (2) lower than described filter membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320756426.0U CN203745324U (en) | 2013-11-26 | 2013-11-26 | Particle filter membrane weighing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320756426.0U CN203745324U (en) | 2013-11-26 | 2013-11-26 | Particle filter membrane weighing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745324U true CN203745324U (en) | 2014-07-30 |
Family
ID=51345109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320756426.0U Expired - Fee Related CN203745324U (en) | 2013-11-26 | 2013-11-26 | Particle filter membrane weighing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745324U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781115A (en) * | 2020-07-10 | 2020-10-16 | 上海市计量测试技术研究院 | Air pollutant filter membrane weighing device and weighing method |
| CN115541438A (en) * | 2022-12-02 | 2022-12-30 | 沛县格桑电子有限公司 | Portable multi-environment atmospheric environmental pollution detector and use method thereof |
-
2013
- 2013-11-26 CN CN201320756426.0U patent/CN203745324U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781115A (en) * | 2020-07-10 | 2020-10-16 | 上海市计量测试技术研究院 | Air pollutant filter membrane weighing device and weighing method |
| CN111781115B (en) * | 2020-07-10 | 2022-08-02 | 上海市计量测试技术研究院 | Air pollutant filter membrane weighing device and weighing method |
| CN115541438A (en) * | 2022-12-02 | 2022-12-30 | 沛县格桑电子有限公司 | Portable multi-environment atmospheric environmental pollution detector and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20211126 |