CN207424340U - A kind of lens assembly of monitoring camera - Google Patents
A kind of lens assembly of monitoring camera Download PDFInfo
- Publication number
- CN207424340U CN207424340U CN201721530072.2U CN201721530072U CN207424340U CN 207424340 U CN207424340 U CN 207424340U CN 201721530072 U CN201721530072 U CN 201721530072U CN 207424340 U CN207424340 U CN 207424340U
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- CN
- China
- Prior art keywords
- lens
- monitoring camera
- sleeve
- front panel
- lens barrel
- 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.)
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- Lens Barrels (AREA)
- Studio Devices (AREA)
- Structure And Mechanism Of Cameras (AREA)
Abstract
The utility model discloses a kind of lens assembly of monitoring camera, including an integrally formed lens barrel, the lens barrel is internally provided with positioning lumen, group cartridge module is provided with inside the positioning lumen, group's cartridge module includes sleeve, it is equipped with the first lens successively from front to back in the sleeve, second lens and the 3rd lens, the front end of the lens barrel is provided with dustproof cover, the dustproof cover includes front panel and the female cylinder of tool extended backward from the front panel edge, the centre position of the front panel is provided with transmission lens, protrusion is provided in the lens barrel front end has externally threaded round platform, the cylindrical sleeve is arranged on outside the round platform and the two is threaded togather, the front panel is pressed on the front end face of the round platform and is provided with dustproof gasket therebetween, its dust-proof effect is preferable.
Description
Technical field
The utility model is related to field of optical device technology more particularly to a kind of lens assemblies of monitoring camera.
Background technology
The interference of dust, rainwater etc. can be run into monitoring camera outer use indoors now.It is this in order to solve the problems, such as, it is existing
Monitoring camera outside be assembled with protective cover.The major function of protective cover is to prevent monitoring camera from falling ash, and either
It blows, rain, snowing and can work normally video camera.But according to the behaviour in service of many monitoring cameras now and pay no attention to
Think, because protective cover is not what is be fully sealed, still has dust and enter protective cover.Almost just needed every three months
Clear up a dust.A series of troubles can be brought during cleaning dust, lens focus variation, camera lens scratch etc. may be made
Deng.So as to the troublesome operation that needs to focus again etc..
Utility model content
The main purpose of the utility model is to provide a kind of lens assembly of monitoring camera, and dust-proof effect is preferable.
The utility model proposes a kind of lens assembly of monitoring camera, including an integrally formed lens barrel, the lens barrel
Be internally provided with positioning lumen, be provided with group cartridge module inside the positioning lumen, group's cartridge module includes sleeve, in institute
It states and is equipped with the first lens, the second lens and the 3rd lens in sleeve successively from front to back, there are one directions for the first lens tool
The convex surface of sleeve rear end, the second lens tool is there are two concave surface, and there are one the 3rd lens tools towards the recessed of barrel forward end
Face, dustproof cover is provided in the front end of the lens barrel, and the dustproof cover includes front panel and prolongs backward from the front panel edge
The female cylinder of tool stretched, transmission lens are provided in the centre position of the front panel, are set in the lens barrel front end
There is the externally threaded round platform that has of protrusion, the cylindrical sleeve is arranged on outside the round platform and the two is threaded togather, described
Front panel is pressed on the front end face of the round platform and is provided with dustproof gasket therebetween.
Preferably, the limit protrusion of annular is provided in the outside wall surface of the lens barrel.
Preferably, the swivelling chute of arc is provided on the outer wall of the lens barrel.
Preferably, the adjusting locating ring of the 3rd lens can be held out against there are one being screwed in the rear end of the sleeve.
Preferably, it is provided with positioning tube between first lens and second lens.
Preferably, interior positioning step is provided in the front inner wall of the sleeve, the positioning tube is saturating by described first
Mirror is pressed on the interior positioning step.
A kind of lens assembly of monitoring camera of the utility model has the beneficial effect that：
A kind of lens assembly of monitoring camera of the utility model, simple in structure, compact, dust-proof effect is preferable.
Description of the drawings
Fig. 1 is the structure diagram of the lens assembly of the utility model monitoring camera.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
Reference Fig. 1 proposes a kind of lens assembly of monitoring camera of the utility model, including an integrally formed lens barrel
1, the lens barrel 1 is internally provided with positioning lumen 100, and 100 the inside of positioning lumen is provided with group cartridge module 2, the group
Cartridge module 2 includes sleeve 200, is equipped with the first lens 201, the second lens 202 and the successively from front to back in the sleeve 200
Three lens 203, the tool of the first lens 201 is there are one towards the convex surface of sleeve rear end, and there are two recessed for the tool of the second lens 202
Face, the 3rd lens 203 tool are provided with dustproof cover 3 there are one towards the concave surface of barrel forward end in the front end of the lens barrel 1,
The dustproof cover 3 includes front panel 301 and the female cylinder 302 of tool extended backward from 301 edge of front panel,
The centre position of the front panel 301 is provided with transmission lens 303, and protrusion is provided in 1 front end of lens barrel has outer spiral shell
The round platform 101 of line, the cylinder 302 is sheathed on outside the round platform 101 and the two is threaded togather, the front panel
301 are pressed on the front end face of the round platform 101 and are provided with dustproof gasket 4 therebetween, either blow, rain,
Video camera can be worked normally by snowing.
A kind of lens assembly of monitoring camera of the present embodiment, simple in structure, compact, dust-proof effect is preferable, either
It blows, rain, snowing and can work normally monitoring camera.
Further, the limit protrusion 102 of annular is provided in the outside wall surface of the lens barrel 1.
Further, the swivelling chute 103 of arc is provided on the outer wall of the lens barrel 1.
Further, the adjusting that the 3rd lens 203 can be held out against there are one being screwed in the rear end of the sleeve 200 to be determined
Position ring 204.
Further, it is provided with positioning tube 5 between first lens 201 and second lens 204.
Further, it is provided with interior positioning step 205 in the front inner wall of the sleeve 200, the positioning tube 5 is by institute
The first lens 201 are stated to be pressed on the interior positioning step 205.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
Every equivalent structure transformation made based on the specification and figures of the utility model, is directly or indirectly used in other phases
The technical field of pass, is equally included in the patent within the scope of the utility model.
Claims (6)
1. a kind of lens assembly of monitoring camera, which is characterized in that including an integrally formed lens barrel, the inside of the lens barrel
Equipped with positioning lumen, group cartridge module is provided with inside the positioning lumen, group's cartridge module includes sleeve, in the sleeve
In be equipped with the first lens, the second lens and the 3rd lens successively from front to back, there are one towards after sleeve for first lens tool
The convex surface at end, the second lens tool is there are two concave surface, and there are one the 3rd lens tools towards the concave surface of barrel forward end, in institute
The front end for stating lens barrel is provided with dustproof cover, and the dustproof cover includes front panel and has from what the front panel edge extended backward
The cylinder of internal thread is provided with transmission lens in the centre position of the front panel, and the lens barrel front end is provided with protrusion
With externally threaded round platform, the cylindrical sleeve is arranged on outside the round platform and the two is threaded togather, the front panel pressure
Tightly it is provided on the front end face of the round platform and therebetween dustproof gasket.
2. the lens assembly of a kind of monitoring camera according to claim 1, which is characterized in that in the outside wall surface of the lens barrel
On be provided with annular limit protrusion.
3. the lens assembly of a kind of monitoring camera according to claim 1, which is characterized in that on the outer wall of the lens barrel
It is provided with the swivelling chute of arc.
4. the lens assembly of a kind of monitoring camera according to claim 1,2 or 3, which is characterized in that in the sleeve
Rear end screws that there are one can hold out against the adjusting locating rings of the 3rd lens.
5. the lens assembly of a kind of monitoring camera according to claim 1,2 or 3, which is characterized in that described first thoroughly
Positioning tube is provided between mirror and second lens.
6. the lens assembly of a kind of monitoring camera according to claim 5, which is characterized in that in the front end of the sleeve
Interior positioning step is provided on wall, first lens are pressed on the interior positioning step by the positioning tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721530072.2U CN207424340U (en) | 2017-11-16 | 2017-11-16 | A kind of lens assembly of monitoring camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721530072.2U CN207424340U (en) | 2017-11-16 | 2017-11-16 | A kind of lens assembly of monitoring camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207424340U true CN207424340U (en) | 2018-05-29 |
Family
ID=62304974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721530072.2U Active CN207424340U (en) | 2017-11-16 | 2017-11-16 | A kind of lens assembly of monitoring camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207424340U (en) |
-
2017
- 2017-11-16 CN CN201721530072.2U patent/CN207424340U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |