CN204015169U - A kind ofly use dustcoat with teaching of public address set - Google Patents
A kind ofly use dustcoat with teaching of public address set Download PDFInfo
- Publication number
- CN204015169U CN204015169U CN201420227592.6U CN201420227592U CN204015169U CN 204015169 U CN204015169 U CN 204015169U CN 201420227592 U CN201420227592 U CN 201420227592U CN 204015169 U CN204015169 U CN 204015169U
- Authority
- CN
- China
- Prior art keywords
- mouth mask
- square piece
- piece shape
- shape mouth
- cap
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of teaching with dustcoat with public address set, comprise the coat body with cap body, coat body comprises the lining of the outer field electrostatic prevention plastic bed of material and internal layer, on the electrostatic prevention plastic bed of material and lining, being equipped with diameter range is the small ventilating holes of 5 μ m-8 μ m, coat body is provided with square piece shape mouth mask body, limit, square piece shape mouth mask body left side is closed and is connected along left side side seam along cap is external from the junction of cap body and the front part of a Chinese robe or jacket by slide fastener, and square piece shape mouth mask body right edge is connected along right edge along cap is external from the junction of cap body and the front part of a Chinese robe or jacket by slide fastener; Described public address set adopts wireless microphone, and microtelephone is located on square piece shape mouth mask body inner surface, microtelephone wireless connections loudspeaker.
Description
Technical field
The utility model relates to educational aid technical field, relate in particular to a kind of dress during for teachers' instruction use dustcoat with teaching of public address set.
Background technology
At present, most schools is still used chalk-writing, draws and explain in teaching process.In a class of 45 minutes-50 minutes, need erasable several, lower class hour, teacher on hand, on sleeve, even on hair, often all leave one deck white chalk dust on shoulder.Meanwhile, inevitably, chalk dust can suck lung from the nostril of human body, causes uncertain health harm.The harm bringing has: one, and chalk dust is easy to be inhaled into lung, and majority is delayed in alveolar, and through a series of stimulation, chemical and immune effect just can cause lung's loss, comprises that inflammation in respiratory system and pulmonary ventilation function decline; Two, the approach that chalk dust enters lung is to comprise nose, pharynx, bronchus by the upper respiratory tract, in this course, part dust can stay in the upper respiratory tract, mucomembranous epithelial cell is produced to mechanical stimulus and damage, under this environment, work for a long time, can cause a series of pathology; Three, harm to eyes: Main Ingredients and Appearance calcium carbonate, the calcium oxide etc. of chalk dust are a kind of water-soluble substanceses, after molten water, produce alkaline matter, teacher is in teaching process, and chalk dust falls into eye, stimulates lacrimal secretion, tears are hydrolyzed calcium carbonate and produce alkaline matter, will seriously stimulate eye mucous membrane, cause mucosa injury, form chronic inflammation; Four, harm to skin: teacher is in teaching process, chalk dust inevitably can stick on hand, float on simultaneously airborne granule dust also can drop on teacher's hair, on the face with neck on, skin membrane is had to spread effect, if meet sweat solution hot summer days, produce alkaline matter, just larger to Mucocutaneous stimulation, because the environment that human body skin is survived is weak acid environment, under the effect of dust alkalescence, destroy so the basic living environment of skin, chalk dust makes skin become dry, coarse, and with the sensation of scratching where it itches, make human body discomfort.In the process of giving lessons, teacher often also needs loud teaching, consume very much teacher's physical efficiency, and teacher's throat often sustains damage.
Utility model content
The purpose of this utility model is to provide a kind of teaching with dustcoat with public address set, can effectively prevent that chalk dust from directly contacting in teacher's health or suction body, avoid the generation of multiple harm, ensure that teachers ' teaching health is not subject to the injury of chalk dust, utilize public address set to reduce teacher's burden of teaching simultaneously, improve the quality of teaching.
The technical solution adopted in the utility model is:
A kind of teaching with dustcoat with public address set, comprise the coat body with cap body, coat body comprises the lining of the outer field electrostatic prevention plastic bed of material and internal layer, on the electrostatic prevention plastic bed of material and lining, being equipped with diameter range is the small ventilating holes of 5 μ m-8 μ m, coat body is provided with square piece shape mouth mask body, limit, square piece shape mouth mask body left side is closed and is connected along left side side seam along cap is external from the junction of cap body and the front part of a Chinese robe or jacket by slide fastener, and square piece shape mouth mask body right edge is connected along right edge along cap is external from the junction of cap body and the front part of a Chinese robe or jacket by slide fastener; Described public address set adopts wireless microphone, and microtelephone is located on square piece shape mouth mask body inner surface, microtelephone wireless connections loudspeaker.
The cuff place of coat body is provided with elastic rubber band.
Square piece shape mouth mask body is connected by zipper the coat body front part of a Chinese robe or jacket below.
Described microtelephone is fixed on square piece shape mouth mask body inner surface by safety pin.
The utility model arranges the electrostatic prevention plastic bed of material at coat body skin, antistatic plastic can prevent adsorbing powder dust, be convenient to cleaning, coat body is provided with cap body, prevents the direct body contact of dust and head, passing through square piece shape mouth mask body, prevent from entering of dust from for microphone is set, facilitating teacher to teach on the other hand on the one hand, reduce the physical efficiency that teacher consumes, improve teaching efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the electrostatic prevention plastic bed of material of the present utility model and lining structure schematic diagram.
Detailed description of the invention
As depicted in figs. 1 and 2, the utility model comprises the coat body 1 with cap body 2, more comprehensively prevents that chalk dust from directly contacting teacher's skin or head, avoids causing the discomfort of skin; Coat body 1 comprises the lining 9 of the outer field electrostatic prevention plastic bed of material 8 and internal layer, the electrostatic prevention plastic bed of material 8 can be good at preventing the absorption of chalk dust, and be convenient to clean, teacher have a class only need to shake several lower or wipe clean with dry wipe, the electrostatic prevention plastic bed of material 8 is existing material, belong to existing maturing material, do not repeat them here; On the electrostatic prevention plastic bed of material 8 and lining 9, being equipped with diameter range is the small ventilating holes 10 of 5 μ m-8 μ m, small ventilating holes 10 improves the comfort level of health, summer sky heat, can not make people feel sultry, the diameter of small ventilating holes 10 is chosen as 5 μ m-8 μ m, because the diameter of chalk dust is generally between 10 μ m-20 μ m, so the diameter of small ventilating holes 10 can prevent entering of chalk dust completely; In embodiment, small ventilating holes 10 diameters on can the electrostatic prevention plastic bed of material 8 are set to 5 μ m, and small ventilating holes 10 diameters of lining 9 are set to 8 μ m, strengthen gas permeability.The cuff place of coat body 1 is provided with elastic rubber band 6, strengthens the anti-dust performance of coat, avoids teacher's cuff to be made dirty in the time of blackboard wiping.Coat body 1 is provided with square piece shape mouth mask body 4, square piece shape mouth mask body 4 limits, left side are closed and are connected along 3 left side side seams along cap is external from the junction of cap body 2 and the front part of a Chinese robe or jacket by slide fastener 7, square piece shape mouth mask body 4 right edge are connected along 3 right edge along cap is external from the junction of cap body 2 and the front part of a Chinese robe or jacket by slide fastener 7, square piece shape mouth mask body 4 is below by slide fastener 7 connecting overdress body 1 front parts of a Chinese robe or jacket, such three limits are fixed, well prevent that chalk dust from sucking inside of human body by mouth and nose, avoid causing the disease of respiratory tract and lung, because mouth mask body 4 generally can touch teacher's lip, so adopt the mode of three limit slide fasteners 7 to connect, can dismantle like this, every teacher can use the mouth mask body 4 of oneself, and coat can use for multidigit teacher, described public address set adopts wireless microphone, microtelephone 5 is fixed on square piece shape mouth mask body 4 inner surfaces by safety pin, microtelephone 5 wireless connections loudspeakers, because the mode by wireless is carried out the transmission of signal, so, loudspeaker can be placed on lectern, prevents from that teacher from teaching to drop while carrying.
Coat of the present utility model can repeatedly use, and cleaning is convenient, good dustproof effect, not only use in teacher teaches, also can use in other dustproof environment, for staff provides dustproof instrument effectively, improve the healthy index of staff.
Claims (4)
1. teaching with dustcoat with public address set, it is characterized in that: comprise the coat body with cap body, coat body comprises the lining of the outer field electrostatic prevention plastic bed of material and internal layer, on the electrostatic prevention plastic bed of material and lining, being equipped with diameter range is the small ventilating holes of 5 μ m-8 μ m, coat body is provided with square piece shape mouth mask body, limit, square piece shape mouth mask body left side is closed and is connected along left side side seam along cap is external from the junction of cap body and the front part of a Chinese robe or jacket by slide fastener, and square piece shape mouth mask body right edge is connected along right edge along cap is external from the junction of cap body and the front part of a Chinese robe or jacket by slide fastener; Described public address set adopts wireless microphone, and microtelephone is located on square piece shape mouth mask body inner surface, microtelephone wireless connections loudspeaker.
2. the use dustcoat of teaching with public address set according to claim 1, is characterized in that: the cuff place of coat body is provided with elastic rubber band.
3. the use dustcoat of teaching with public address set according to claim 2, is characterized in that: square piece shape mouth mask body is connected by zipper the coat body front part of a Chinese robe or jacket below.
4. the use dustcoat of teaching with public address set according to claim 3, is characterized in that: described microtelephone is fixed on square piece shape mouth mask body inner surface by safety pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227592.6U CN204015169U (en) | 2014-05-06 | 2014-05-06 | A kind ofly use dustcoat with teaching of public address set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227592.6U CN204015169U (en) | 2014-05-06 | 2014-05-06 | A kind ofly use dustcoat with teaching of public address set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204015169U true CN204015169U (en) | 2014-12-17 |
Family
ID=52055105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420227592.6U Expired - Fee Related CN204015169U (en) | 2014-05-06 | 2014-05-06 | A kind ofly use dustcoat with teaching of public address set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204015169U (en) |
-
2014
- 2014-05-06 CN CN201420227592.6U patent/CN204015169U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20141217 Termination date: 20150506 |
|
| EXPY | Termination of patent right or utility model |