CN204120290U - For the internal battery filter dirt box of electric blowing dust-proof mouth mask - Google Patents
For the internal battery filter dirt box of electric blowing dust-proof mouth mask Download PDFInfo
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- CN204120290U CN204120290U CN201420616456.6U CN201420616456U CN204120290U CN 204120290 U CN204120290 U CN 204120290U CN 201420616456 U CN201420616456 U CN 201420616456U CN 204120290 U CN204120290 U CN 204120290U
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- filter dirt
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Abstract
The utility model belongs to anti-dust respirator field, be specially a kind of internal battery for electric blowing dust-proof mouth mask filter dirt box, comprise the cylindrical center (22) be made by engineering plastics, coordinate in described center (22) and be provided with battery fixing bracket (24), the interior both sides of described battery fixing bracket (24) are symmetrical is longitudinally separately installed with a joint alkaline dry battery (26); Two end faces of described center (22) are separately installed with filter dirt sheet (25), and an end face of described center (22) is provided with external protecgulum (23), other end is provided with built-in bonnet (21); The periphery wall of described center (22) is provided with shift knob (27), described shift knob (27) is positioned on the axis of symmetry of two batteries (26).The utility model is reasonable in design, at individual protection clothing arts, according to the market demand, have developed the anti-particle powered supplied air respirator that the structure dynamics respiratory resistance of a internal battery is lower.
Description
Technical field
The utility model belongs to anti-dust respirator field, is specially a kind of internal battery for electric blowing dust-proof mouth mask filter dirt box.
Background technology
Domestic at present do not have existing unified standard to powered supplied air filtering type anti-dust respirator is domestic, only has external power supply structure anti-dust respirator abroad yet.Therefore, develop a kind of electric blowing dust-proof mouth mask of internal battery and be applied to individual protection clothing arts, establishment " MF30 type electric blowing dust-proof mouth mask product specification and acceptance condition " is carried out the work, and will fill up the blank of domestic a kind of powered supplied air anti-dust respirator.
Summary of the invention
The purpose of this utility model is on the basis of powered supplied air anti-dust respirator, is built-in power battery structure by external power supply battery optimization, is placed uneven by an opening filtering material, changes the assembling of filter lid structure both-side opening into.
The utility model adopts following technical scheme to realize:
A kind of filter of the internal battery for electric blowing dust-proof mouth mask dirt box, comprise the cylindrical center be made by engineering plastics, coordinate in described center and be provided with battery fixing bracket, in described battery fixing bracket, both sides are symmetrical is longitudinally separately installed with a joint alkaline dry battery; Two end faces of described center are separately installed with filter dirt sheet, and an end face of described center is provided with external protecgulum, other end is provided with built-in bonnet; The periphery wall of described center is provided with shift knob, and described shift knob is positioned on the axis of symmetry of two batteries.
Electric blowing dust-proof mouth mask is assembled by rubber parts, working of plastics and miniature electric fan assembly etc.
Filter element (filter dirt box) is cylindrical-shaped structure, is made by engineering plastics, design initial stage filter element side assembling filtering material scheme: filter element divides filter dirt box cover, filter dirt box.Due to the impact of the built-in filter box of battery, first filter is loaded in filter element (filter dirt box) from side during assembling, then filter dirt box cover is buckled on filter dirt box, then combine with the half face shield assembled, carry out product Filtration Efficiency test, filter efficiency < 95%.
After improvement, filter element filter dirt box divides external protecgulum, center, built-in bonnet, is namely first loaded in filter element from filter dirt box center front end face by filter, then is arranged on the front end face of center by filter dirt protecgulum fastening; Then rear end face is also put into filter, more built-in bonnet is arranged on center rear end face, then combined by washer sealing and the half face shield assembled.
During work, press the shift knob being positioned at filter top, dirt box center periphery, be communicated with battery place circuit, starter motor work, carries out automatic ventilating.Extraneous air is successively by being passed by the mid portion of center after protecgulum and filter, and two side portions, for settling battery, enters face masks again after filter and bonnet.
Both sides assembling filtering material scheme is adopted to have the following advantages: one is filter lid structure both-side opening, solve a side opening filtering material and place uneven defect, two is that assembling is simple, and filter element is box two cover combined structure, filter box is changeable type, changes easily; Three is be better than side opening scheme to the protection of low concentration toxic and harmful.
The power-supply battery of current employing is the special 7# alkaline dry battery of 2 joint, if demand increases, can consider to make the object that special-shaped battery reaches same.
Manufactured experimently by small lot in this type electric blowing dust-proof mouth mask trial-manufacturing process, according to " electric blowing dust-proof mouth mask product specification and inspection specifications ", by carrying out main performance test to sample, outlet valve air-tightness is good, product filter efficiency can reach more than 95%, meets design requirement.
The key technical indexes is as follows:
1, filter efficiency: should 95% be not less than;
2, outlet valve resistance: during powered supplied air device power-off, should 250Pa be not more than;
During powered supplied air device electric power starting, 600 Pa should be not more than;
3, inspiratory resistance: during powered supplied air device power-off, should 350Pa be not more than;
During powered supplied air device electric power starting, 250 Pa should be not more than;
4, outlet valve air-tightness: when system reduces to-1180 Pa, the time that outlet valve recovers normal pressure should not be less than 20s;
5, powered supplied air device uses 3h continuously, and air output should be not less than 40L/min.
The utility model is reasonable in design; at individual protection clothing arts; according to the market demand; have developed the anti-particle powered supplied air respirator that the structure dynamics respiratory resistance of a internal battery is lower; electric fan is relied on to reduce the respiratory resistance of user, the injury of suspended particulate substance in being used for protecting the respiratory apparatus of user when plateau or tunneling from contaminated environment.
Accompanying drawing explanation
Fig. 1 is the overall schematic of electric blowing dust-proof mouth mask.
Fig. 2 is the decomposing schematic representation of filter dirt box.
Fig. 3 is the cross section view of filter dirt box.
In figure, 1-half face shield, 2-filters dirt box, 3-outlet valve group, 4-headband pad, 21-bonnet, 22-center, 23-protecgulum, 24-battery fixing bracket, and 25-filters dirt sheet, 26-battery, 27-shift knob, 28-packing ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail.
A kind of filter of the internal battery for electric blowing dust-proof mouth mask dirt box, as shown in Figure 3, comprise the cylindrical center 22 be made by engineering plastics, coordinate in described center 22 and be provided with battery fixing bracket 24, in described battery fixing bracket 24, both sides are symmetrical is longitudinally separately installed with a joint alkaline dry battery 26; Two end faces of described center 22 are separately installed with filter dirt sheet 25, and an end face of described center 22 is provided with external protecgulum 23, is namely before covered with internal thread, and front end face (towards the outer face) place of center is provided with external screw thread; The other end of center 22 is provided with built-in bonnet 21, is namely covered with external screw thread afterwards, and center rear end face (end face towards face shield) is provided with internal thread; Protecgulum 23 and bonnet 21 are all arranged on two end faces of center 22 by helicitic texture.The periphery wall of described center 22 is provided with shift knob 27, and described shift knob 27 is positioned on the axis of symmetry of two batteries 26.
During installation, as shown in Figure 1, 2, 3, first place two pieces of batteries 26 by interior for the battery fixing bracket 24 in center 22, then filter 25 is loaded in filter element from filter dirt box center 22 front end face, then filter dirt protecgulum 23 fastening is arranged on the front end face of center 22; Then the rear end face of center 22 is also put into filter 25, more built-in bonnet 21 is arranged on center 22 rear end face, then the half face shield being sealed by packing ring 28 and assemble is combined.
Engineering plastics refer to that a class can as structural material, mechanical stress is born in wider temperature range, the high performance macromolecular material used in comparatively harsh Chemical Physics environment, there are good mechanical performance and dimensional stability, still its premium properties can be kept under high and low temperature, can as the plastics of engineering structure part.As ABS, nylon, PP etc.
Claims (1)
1. the filter of the internal battery for an electric blowing dust-proof mouth mask dirt box, it is characterized in that: comprise the cylindrical center (22) be made by engineering plastics, coordinate in described center (22) and be provided with battery fixing bracket (24), the interior both sides of described battery fixing bracket (24) are symmetrical is longitudinally separately installed with a joint alkaline dry battery (26); Two end faces of described center (22) are separately installed with filter dirt sheet (25), and an end face of described center (22) is provided with external protecgulum (23), other end is provided with built-in bonnet (21); The periphery wall of described center (22) is provided with shift knob (27), described shift knob (27) is positioned on the axis of symmetry of two batteries (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420616456.6U CN204120290U (en) | 2014-10-23 | 2014-10-23 | For the internal battery filter dirt box of electric blowing dust-proof mouth mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420616456.6U CN204120290U (en) | 2014-10-23 | 2014-10-23 | For the internal battery filter dirt box of electric blowing dust-proof mouth mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204120290U true CN204120290U (en) | 2015-01-28 |
Family
ID=52376689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420616456.6U Expired - Fee Related CN204120290U (en) | 2014-10-23 | 2014-10-23 | For the internal battery filter dirt box of electric blowing dust-proof mouth mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204120290U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325114A (en) * | 2018-03-08 | 2018-07-27 | 湖北华强科技有限责任公司 | Lower resistance through type canister |
| CN113984619A (en) * | 2021-10-22 | 2022-01-28 | 中国矿业大学 | Respirator on-site protection factor evaluation system and method |
-
2014
- 2014-10-23 CN CN201420616456.6U patent/CN204120290U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325114A (en) * | 2018-03-08 | 2018-07-27 | 湖北华强科技有限责任公司 | Lower resistance through type canister |
| CN113984619A (en) * | 2021-10-22 | 2022-01-28 | 中国矿业大学 | Respirator on-site protection factor evaluation system and method |
| CN113984619B (en) * | 2021-10-22 | 2024-02-27 | 中国矿业大学 | Respirator on-site protection factor evaluation system and evaluation method |
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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: 20150128 Termination date: 20201023 |