CN203164582U - Observation hole of smoke-proof security protection cover - Google Patents
Observation hole of smoke-proof security protection cover Download PDFInfo
- Publication number
- CN203164582U CN203164582U CN201220711115.8U CN201220711115U CN203164582U CN 203164582 U CN203164582 U CN 203164582U CN 201220711115 U CN201220711115 U CN 201220711115U CN 203164582 U CN203164582 U CN 203164582U
- Authority
- CN
- China
- Prior art keywords
- circular cylinder
- peephole
- security protection
- hole
- viewport
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to the technology field of auxiliary equipment used for a camera monitoring device under an industrial dust environment and especially relates to an observation hole of a smoke-proof security protection cover. The observation hole is characterized in that the hole comprises an outer cylinder, an air curtain area, a circular cylinder, an air inlet, an airflow channel and a peep hole. The other side of the peep hole is provided with an inner circular cylinder. One outer cylinder is sleeved out of the circular cylinder. The annular airflow channel is formed between an inner wall of the outer cylinder and an outer wall of the circular cylinder. According to the utility model, a stable and occlusive air curtain forms on the other side of the observation hole so that dust can be prevented from being deposited at the peep hole and a high temperature gas can be prevented from damaging the peep hole.
Description
Technical field
The utility model relates to monitoring camera-shooting device utility appliance technical field under the industrial fumes environment, specifically a kind of viewport of preventing dust security protection protective cover.
Background technology
At iron and steel, cement, electric power, all there is the high-temperature smoke environment in the Glass lamp sweat, the safety monitoring equipment that moves under this environment must be equipped with the protective cover of preventing dust, some also needs cooling system, on protective cover, also viewport to be set before the camera camera lens, need to feed gas in the general protective cover, the gas that feeds enters protective cover infringement and camera and camera lens to stop outside heat and flue dust by viewport from the camera aperture pass-out on the protective cover, but in the long-time running process, the dust that accumulates on the viewport is more and more, even block viewport, this just needs artificial periodic cleaning viewport, not only increase the plant maintenance workload, influence the image imaging quality, even have influence on technological parameter and product quality.
Summary of the invention
The purpose of this utility model is for overcoming the deficiencies in the prior art; a kind of viewport of preventing dust security protection protective cover is provided; this viewport can effectively be eliminated flue dust in the deposition of viewport; prolong the cleaning cycle of viewport; and prevent that inboard high-temperature gas from passing through viewport, avoids high temperature to the destruction of video camera and camera lens.
In order to achieve the above object, the utility model has designed a kind of viewport of preventing dust security protection protective cover, it is characterized in that: comprise that a side is used for arranging the peephole of camera lens, the opposite side that it is characterized in that described peephole arranges interior circular cylinder, circular cylinder is set with a urceolus outward, forms annular air-flow path between described outer tube inner wall and the circular cylinder outer wall.
Further, described peephole is positioned at the through hole of circular cylinder lower position, and air intake opening and annular air-flow path that the periphery of peephole is provided with annular communicate.
Further, described urceolus and the coaxial setting of circular cylinder, the other end of outer tube inner wall extends and is longer than the top of circular cylinder, on the boss that the peephole position forms in urceolus.
The utility model is compared with prior art, the peephole of flue dust environment low protection cover of the present utility model is by feeding annular airflow in the annular air-flow path of peephole and peephole periphery, opposite side at viewport forms stable and inaccessible gas curtain, thereby can stop dust in peephole place deposition and high-temperature gas peephole to be destroyed.。
Description of drawings
Fig. 1 is cut-open view of the present utility model.
Referring to Fig. 1,1 is urceolus; 2 is the gas curtain district; 3 is circular cylinder; 4 is air intake opening; 5 is gas channel; 6 is peephole.
Embodiment
As shown in Figure 1, viewport of the present utility model is made up of circular cylinder 3 and urceolus 1 two parts, and peephole 6 is positioned at the through hole at the vertex of a cone position of circular cylinder 3, and a urceolus 1 is put in the installing of circular cylinder 3 overcoats, forms annular air-flow path 5 between outer tube inner wall and circular cylinder outer wall.The periphery of peephole is provided with air intake opening 4 and the annular air-flow path 5 of annular and comes round, the outer wall of urceolus 1 is cylindrical tube, one section of its inwall fixedly installs with the top of circular cylinder behind the convex, the inside indentation of the inwall other end, form the gas vent suitable with the bottom internal diameter of circular cylinder 3, urceolus and the coaxial setting of circular cylinder, the inwall other end of urceolus extends and is longer than the bottom of circular cylinder, bottom and the inboard gas curtain district 2 that forms, the end of the inwall other end of urceolus, urceolus and the coaxial setting of circular cylinder, inwall one end of urceolus extends and is shorter than the top of circular cylinder, and peephole 6 is arranged on the boss that forms in the urceolus.
Claims (3)
1. the viewport of a preventing dust security protection protective cover; it is characterized in that: comprise that a side is used for arranging the peephole of camera lens; the opposite side of peephole arranges circular cylinder, and circular cylinder is set with a urceolus outward, forms annular air-flow path between described outer tube inner wall and the circular cylinder outer wall.
2. the viewport of a kind of preventing dust security protection protective cover according to claim 1, it is characterized in that: described peephole is positioned at the through hole of circular cylinder lower position, and air intake opening and annular air-flow path that the periphery of peephole is provided with annular communicate.
3. the viewport of a kind of preventing dust security protection protective cover according to claim 1 is characterized in that: described urceolus and the coaxial setting of circular cylinder, the other end of outer tube inner wall extends and is longer than the top of circular cylinder, on the boss that the peephole position forms in urceolus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220711115.8U CN203164582U (en) | 2012-12-20 | 2012-12-20 | Observation hole of smoke-proof security protection cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220711115.8U CN203164582U (en) | 2012-12-20 | 2012-12-20 | Observation hole of smoke-proof security protection cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203164582U true CN203164582U (en) | 2013-08-28 |
Family
ID=49025754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220711115.8U Expired - Fee Related CN203164582U (en) | 2012-12-20 | 2012-12-20 | Observation hole of smoke-proof security protection cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203164582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115233289A (en) * | 2022-07-13 | 2022-10-25 | 毕孝国 | Flame fusion method crystal growth furnace and observation window |
-
2012
- 2012-12-20 CN CN201220711115.8U patent/CN203164582U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115233289A (en) * | 2022-07-13 | 2022-10-25 | 毕孝国 | Flame fusion method crystal growth furnace and observation window |
| CN115233289B (en) * | 2022-07-13 | 2023-12-01 | 毕孝国 | Crystal growth furnace by flame fusion method and observation window |
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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: 20130828 Termination date: 20141220 |
|
| EXPY | Termination of patent right or utility model |