CN2105744U - Student calm keeping device - Google Patents
Student calm keeping device Download PDFInfo
- Publication number
- CN2105744U CN2105744U CN 91231435 CN91231435U CN2105744U CN 2105744 U CN2105744 U CN 2105744U CN 91231435 CN91231435 CN 91231435 CN 91231435 U CN91231435 U CN 91231435U CN 2105744 U CN2105744 U CN 2105744U
- Authority
- CN
- China
- Prior art keywords
- earplug
- calm
- student
- keeping device
- ear plug
- 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.)
- Granted
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- Electrically Operated Instructional Devices (AREA)
Abstract
The utility model relates to a student calm keeping device, which belongs to an accessory for student's learning. The utility model aims to provide a learning accessory with better acoustic insulation effect, easy use and sanitation and is mainly composed of two ear plugs and a sleeve, the ear plug uses a hollow cone structure, and the conical surface of the ear plug is provided with two shallow annular grooves. The ear plug is made of flexible acoustic material. The ear plug can be put into the sleeve when not used. The ear plug has the characteristics of good acoustic insulation and softness.
Description
The utility model belongs to the appurtenance of student's study.
When learning, the student needs a quiet environment.For this reason, with things such as cotton balls, spitballs earhole being clogged is the method that students is often used.This method, soundproof effect is poor, and inconvenient.The purpose of this utility model is used when students provides a kind of study, and soundproof effect is good, and apparatus easy to use, health, improves learning efficiency to help the student.
The structure of this calm keeping device is seen accompanying drawing.Among the figure, (1) is one pair of earplug, and (2) are earplug seats.Earplug is made with soft sound-proof material, as: felt.The earplug front portion is a conical structure, and its circular conical surface is shaped on the shallow ring groove in two roads, to increase the contact area of earplug and earhole skin, strengthens soundproof effect, and plays anti-skidding effect; There is a roundlet taper hole earplug center, to increase the flexibility of earplug, strengthens soundproof effect.Earplug (1) is loaded on the front end of earplug seat (2), is bonded as one with earplug seat.Two earplug seats and cover (3) are for being threaded.During use, back out two earplug seats respectively, earplug is filled in the ear got final product.After the use, respectively two earplugs are screwed in the cover,, and it are kept clean with the protection earplug.Iron hoop (4) is installed on the cover two ends, with protective sleeve.This calm keeping device is the time spent not, can be positioned in the writing case or carries.
Characteristics of the present utility model are: simple in structure; Sound insulation value is preferably arranged; Easy to use.
Claims (3)
- Be used to reduce the calm keeping device of sound interference when 1, a kind of student learns, mainly be made up of earplug (1), earplug seat (2) and cover (3), it is characterized in that said earplug front end is a cone, its circular conical surface has the shallow ring groove of twice.
- 2,, it is characterized in that said earplug center is shaped on a conical bore according to the said calm keeping device of claim 1.
- 3, according to the said calm keeping device of claim 1, it is characterized in that the material of said earplug, be soft sound-proof material--felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91231435 CN2105744U (en) | 1991-11-16 | 1991-11-16 | Student calm keeping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91231435 CN2105744U (en) | 1991-11-16 | 1991-11-16 | Student calm keeping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2105744U true CN2105744U (en) | 1992-05-27 |
Family
ID=4936644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91231435 Granted CN2105744U (en) | 1991-11-16 | 1991-11-16 | Student calm keeping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2105744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2499028A (en) * | 2012-02-04 | 2013-08-07 | Colin Robson | Sleeve holder for earplugs |
-
1991
- 1991-11-16 CN CN 91231435 patent/CN2105744U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2499028A (en) * | 2012-02-04 | 2013-08-07 | Colin Robson | Sleeve holder for earplugs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |