CN202421554U - Dustproof cap for LC fiber connector - Google Patents
Dustproof cap for LC fiber connector Download PDFInfo
- Publication number
- CN202421554U CN202421554U CN2011205623956U CN201120562395U CN202421554U CN 202421554 U CN202421554 U CN 202421554U CN 2011205623956 U CN2011205623956 U CN 2011205623956U CN 201120562395 U CN201120562395 U CN 201120562395U CN 202421554 U CN202421554 U CN 202421554U
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- China
- Prior art keywords
- dust cap
- joints
- optical fibre
- restrictions
- plug division
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- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a dustproof cap for an LC fiber connector. The dustproof cap comprises a splicing part which is spliced with the LC fiber connector, a limiting part for controlling the inserted depth of the splicing part, and a front end part for conveniently plugging the dustproof cap. The splicing part, the limiting part and the front end part are sequentially connected. The limiting part is additionally arranged on the dustproof cap provided by the utility model, so that the dustproof cap can be convenient to plug and further can limit the inserted depth of the splicing part. The limiting part further has better sealing effects. Furthermore, the limiting part is additionally arranged on the dustproof cap, so that a splicing force of the dustproof cap can be controlled well.
Description
Technical field
The utility model relates to the fiber optic telecommunications equipment field, particularly a kind of dust cap of the LC joints of optical fibre.
Background technology
Optical fiber is a kind of message to be delivered to the media of another section point again from a certain section point, is to utilize glass or plastic optical fibre, the transmission medium that lets message pass through.Because optical fiber has low-loss, high power capacity, high transfer rate, does not receive Electromagnetic Interference, can be under rugged surroundings good characteristics such as practicality, light weight; Just fast-developing since the seventies in 20th century; FTTH (Fiber to The Home) means that Fiber to the home, just is meant specifically optical network unit is installed in domestic consumer or enterprise customer place.The remarkable technical characterstic of FTTH is the bandwidth that not only provides bigger, and has strengthened the transparency of network to data form, speed, wavelength and agreement, has relaxed requirements such as environmental baseline and power supplies, has simplified installation and working service.
The joints of optical fibre be optical fiber with optical fiber between carry out the device that detachable (activity) is connected; It gets up the accurate butt joint of two end faces of optical fiber; So that being coupled to receive in the optical fiber to greatest extent, the luminous energy of launching fiber output goes; And make because it is got involved optical link and the influence that system causes is reduced to minimum, this is the basic demand of the joints of optical fibre.To a certain extent, the joints of optical fibre have influenced reliability and each item performance of optical transmission system.
The joints of optical fibre can be divided into single mode, the multimode connector of common silica-based optical fibers by the difference of transmission medium, also have other as being the joints of optical fibre of transmission medium with plastic cement etc.; Can be divided into by connector version: FC, SC, ST, LC, D4, DIN, MU, MT or the like various forms.Wherein, Lucent Connector is that famous Bell (Bel) research institute researchs and develops out, adopts easy to operate modular jack (RJ) breech lock mechanism to process.The contact pin that it adopted and the size of sleeve are the half the of used sizes such as common SC, FC, are 1.25mm.Can improve the density of the joints of optical fibre in the fibre distribution frame like this.At present, aspect single mode, the connector reality of LC type has occupied leading position, and the application aspect multimode also increases rapidly.
The existing LC joints of optical fibre are as shown in Figure 1, and it comprises LC joints of optical fibre body 10, and said LC joints of optical fibre body 10 has a through hole 101, is used to insert lock pin 20.But this joints of optical fibre commonly used are in practical application; There is following shortcoming: because the through hole of LC joints of optical fibre body 10 runs through whole LC joints of optical fibre body; After in the end of the lock pin 20 insertion LC joints of optical fibre; The other end of its LC joints of optical fibre can be exposed in the air, understands by the pollutions such as dust in the surrounding air unavoidably, and then influences the characteristic of the joints of optical fibre; In addition, when assembling, when through hole 101 is inserted in the optical fiber contraposition,, easily human eye is damaged because optical fiber has very strong illumination property.
In order to address the above problem, the dust cap of some LC joints of optical fibre has also appearred on the market now, and wherein a kind of structure of dust cap is as shown in Figure 2; The grafting part 30 of this dust cap is cylindric; Though this dust cap can solve pollution problem to a certain extent, the material of this type dust cap is harder, and this structure of dust cap makes when dust cap plugs quite difficult; And dust cap is scraped unedgedly easily when inserting, and causes product appearance bad easily.
As shown in Figure 3, it is the structural representation of another kind of dust cap common on the market, and is as shown in the figure; The grafting part 30' of this dust cap is coniform; Though this type dust cap has solved the problem of inserting difficulty to a certain extent, the degree of depth of its insertion is uncontrollable, and the lock pin in the LC joints of optical fibre is inserted in as easy as rolling off a log pollution; And the dynamics that the structure of this dust cap causes it to insert, transfer to is uncertain, also is not easy to the dust cap assembling.
Therefore, the structure of the dust cap of the existing LC joints of optical fibre is still waiting to improve.
Summary of the invention
In view of the weak point of above-mentioned prior art, the purpose of the utility model is to provide a kind of dust cap of the LC joints of optical fibre, can plug by the convenient dust-proofing cap, can also alleviate staff's labour intensity.
In order to achieve the above object, the utility model has been taked following technical scheme:
A kind of dust cap of the LC joints of optical fibre; It comprises the Plug Division that is used for the grafting of the LC joints of optical fibre; Be used to control the restrictions and the leading section that is used for the plug of convenient dust-proofing cap of the degree of depth of inserting said Plug Division, said Plug Division, restrictions and leading section are connected successively.
In the dust cap of the above-mentioned LC joints of optical fibre, the end of said Plug Division is provided with a breach.
In the dust cap of the above-mentioned LC joints of optical fibre, said breach is an arc notch.
In the dust cap of the above-mentioned LC joints of optical fibre, the external diameter of said restrictions is greater than the external diameter of Plug Division.
In the dust cap of the above-mentioned LC joints of optical fibre, it is at least one protruding stupefied that the sidewall of said Plug Division is provided with.
In the dust cap of the above-mentioned LC joints of optical fibre, the sidewall of said restrictions is provided with anti-skidding line.
In the dust cap of the above-mentioned LC joints of optical fibre, the external diameter of said leading section is greater than the external diameter of restrictions.
In the dust cap of the above-mentioned LC joints of optical fibre, the cross section of said Plug Division is annular.
Compared to prior art; The dust cap of the LC joints of optical fibre that the utility model provides; It comprises the Plug Division that is used for the grafting of the LC joints of optical fibre, is used to control the restrictions and the leading section that is used for the plug of convenient dust-proofing cap of the degree of depth of inserting said Plug Division, and said Plug Division, restrictions and leading section are connected successively; Because the utility model has adopted and on dust cap, has increased restrictions; When making that dust cap can plug very easily, can also limit the degree of depth that dust cap inserts, and this restrictions also has good sealing effectiveness.In addition, owing on dust cap, increased this restrictions, contact engaging and separating force that can also the better controlled dust cap.Simultaneously, end is provided with a breach in the Plug Division of dust cap, pollutes the end face of lock pin when having avoided the assembling dust cap.
Description of drawings
Fig. 1 is the structural representation of the LC joints of optical fibre.
Fig. 2 is the structural representation of a kind of dust cap in the prior art.
Fig. 3 is the structural representation of another kind of dust cap in the prior art.
The structural representation of the dust cap of the LC joints of optical fibre that Fig. 4 provides for the utility model embodiment.
Structural representation after the dust cap that Fig. 5 provides for the utility model embodiment and the LC joints of optical fibre are pegged graft.
Embodiment
The utility model provides a kind of dust cap of the LC joints of optical fibre, for purpose, technical scheme and the effect that makes the utility model is clearer, clear and definite, below develops simultaneously embodiment to the utility model further explain with reference to accompanying drawing.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
See also Fig. 4 and Fig. 5, the dust cap of the LC joints of optical fibre that the utility model provides comprises Plug Division 11, restrictions 21 and leading section 31, and said Plug Division 11, restrictions 21 are connected with leading section 31 successively.In the specific implementation, this Plug Division 11, restrictions 21 and leading section 31 can one-body moldedly be provided with, thereby can increase the dust cap integral intensity, and the only need one mold moulding of this dust cap, can practice thrift the production cost of dust cap.
Specifically, said Plug Division 11 is used for and the LC joints of optical fibre 41 are pegged graft, and restrictions 21 is used to control the degree of depth that insert said Plug Division 11, and the dynamics that this restrictions 21 can also the better controlled plug, alleviates staff's labour intensity.In the present embodiment, the external diameter of said leading section 31 has made things convenient for the plug of dust cap greater than the external diameter of restrictions 21, and also has anti-skidding producing effect to a certain extent.
Among the utility model embodiment, said dust cap integral body is the cylindrical-shaped structure with step, and is as shown in Figure 4; The external diameter of the restrictions 21 of said dust cap is greater than the external diameter of Plug Division 11, and the external diameter of leading section 31 is greater than the external diameter of restrictions 21, the degree of depth that insert these restrictions 21 better controlled Plug Divisions 11; And these restrictions 21 all right fine sealing LC joints of optical fibre 41; Have the good dust-proof effect, said this dust cap is with after the LC joints of optical fibre 41 are connected, and is as shown in Figure 5.
Please continue to consult Fig. 4, the cross section of described said Plug Division 11 is annular, can think also that here Plug Division 11 is cylindrical; In order to prevent when dust cap is installed, to pollute lock pin; The end of described Plug Division 11 is provided with a breach 111, and in the present embodiment, said breach 111 is an arc notch.
In order to further facilitate the plug of dust cap, in a further embodiment, the sidewall of said Plug Division 11 is provided with at least one protruding stupefied 112; In the present embodiment; Said protruding stupefied 112 is 8, and on the sidewall of the above Plug Division 11 that evenly distributes, and makes between the inwall of the Plug Division 11 and the LC joints of optical fibre 41 to have certain clearance; Further facilitate the plug of dust cap, but also saved the strength that need spend when dust cap plugs.
Further, the sidewall of said restrictions 21 is provided with anti-skidding line (not shown), and when dust cap plugged, this anti-skidding line can increase the friction force between hand and the restrictions 21, further facilitates this dust cap plug.
In sum; The dust cap of the LC joints of optical fibre that the utility model provides; It comprises the Plug Division that is used for the grafting of the LC joints of optical fibre, is used to control the restrictions and the leading section that is used for the plug of convenient dust-proofing cap of the degree of depth of inserting said Plug Division, and said Plug Division, restrictions and leading section are connected successively; Because the utility model has adopted and on dust cap, has increased restrictions; When making that dust cap can plug very easily, can also limit the degree of depth that dust cap inserts, and this restrictions also has good sealing effectiveness.In addition, owing on dust cap, increased this restrictions, contact engaging and separating force that can also the better controlled dust cap.Simultaneously, end is provided with a breach in the Plug Division of dust cap, pollutes the end face of lock pin when having avoided the assembling dust cap.
It is understandable that; Concerning those of ordinary skills; Can be equal to replacement or change according to the technical scheme and the utility model design thereof of the utility model, and all these changes or replacement all should belong to the protection domain of the appended claim of the utility model.
Claims (8)
1. the dust cap of LC joints of optical fibre; It is characterized in that; Comprise the Plug Division that is used for the grafting of the LC joints of optical fibre, be used to control the restrictions and the leading section that is used for the plug of convenient dust-proofing cap of the degree of depth of inserting said Plug Division, said Plug Division, restrictions and leading section are connected successively.
2. the dust cap of the LC joints of optical fibre according to claim 1 is characterized in that, the end of said Plug Division is provided with a breach.
3. the dust cap of the LC joints of optical fibre according to claim 2 is characterized in that, said breach is an arc notch.
4. the dust cap of the LC joints of optical fibre according to claim 1 is characterized in that, the external diameter of said restrictions is greater than the external diameter of Plug Division.
5. the dust cap of the LC joints of optical fibre according to claim 1 is characterized in that, it is at least one protruding stupefied that the sidewall of said Plug Division is provided with.
6. the dust cap of the LC joints of optical fibre according to claim 1 is characterized in that, the sidewall of said restrictions is provided with anti-skidding line.
7. the dust cap of the LC joints of optical fibre according to claim 1 is characterized in that, the external diameter of said leading section is greater than the external diameter of restrictions.
8. according to claim 1 or 2 or the dust cap of the 3 or 5 described LC joints of optical fibre, it is characterized in that the cross section of said Plug Division is annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205623956U CN202421554U (en) | 2011-12-29 | 2011-12-29 | Dustproof cap for LC fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205623956U CN202421554U (en) | 2011-12-29 | 2011-12-29 | Dustproof cap for LC fiber connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202421554U true CN202421554U (en) | 2012-09-05 |
Family
ID=46746302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205623956U Expired - Lifetime CN202421554U (en) | 2011-12-29 | 2011-12-29 | Dustproof cap for LC fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202421554U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014008657A1 (en) * | 2012-07-13 | 2014-01-16 | Amphenol Corporation | T-style, push-on, non-contacting fiber optic connector dust cap |
| US10133010B2 (en) | 2015-05-29 | 2018-11-20 | Corning Optical Communications LLC | Fiber optic cable assemblies with cap apparatuses for sealing optical fiber connectors and associated methods |
| US10209456B2 (en) | 2015-05-29 | 2019-02-19 | Corning Optical Communications LLC | Fiber optic cable assemblies with cap apparatuses for sealing optical fiber connectors and associated methods |
| CN113267857A (en) * | 2021-04-06 | 2021-08-17 | 国网河北省电力有限公司衡水供电分公司 | Dustproof device for optical fiber distribution frame |
-
2011
- 2011-12-29 CN CN2011205623956U patent/CN202421554U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014008657A1 (en) * | 2012-07-13 | 2014-01-16 | Amphenol Corporation | T-style, push-on, non-contacting fiber optic connector dust cap |
| US10133010B2 (en) | 2015-05-29 | 2018-11-20 | Corning Optical Communications LLC | Fiber optic cable assemblies with cap apparatuses for sealing optical fiber connectors and associated methods |
| US10209456B2 (en) | 2015-05-29 | 2019-02-19 | Corning Optical Communications LLC | Fiber optic cable assemblies with cap apparatuses for sealing optical fiber connectors and associated methods |
| CN113267857A (en) * | 2021-04-06 | 2021-08-17 | 国网河北省电力有限公司衡水供电分公司 | Dustproof device for optical fiber distribution frame |
| CN113267857B (en) * | 2021-04-06 | 2022-05-03 | 国网河北省电力有限公司衡水供电分公司 | Dustproof device for optical fiber distribution frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |