CN203645750U - Sealing structure for mining intrinsic safety type camera - Google Patents
Sealing structure for mining intrinsic safety type camera Download PDFInfo
- Publication number
- CN203645750U CN203645750U CN201320825570.5U CN201320825570U CN203645750U CN 203645750 U CN203645750 U CN 203645750U CN 201320825570 U CN201320825570 U CN 201320825570U CN 203645750 U CN203645750 U CN 203645750U
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- connection block
- cover body
- transparent cover
- cylindrical shell
- connecting seat
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Abstract
The utility model discloses a sealing structure for a mining intrinsic safety type camera. The sealing structure comprises a shell, a lens arranged in the shell, a connection cylindrical shell, a connecting seat and a transparent cover body, the connection cylindrical shell is arranged on an inner wall surface of one end of the shell provided with the lens, the connecting seat is connected to the inner wall surface of the connection cylindrical shell, the connecting seat is provided with a center hole, the inner wall surface of the connecting seat is provided with a radial supporting plate, the outer wall surface of the connecting seat is provided with a radial limiting plate, and the outer wall surface of the connecting seat is also provided with an annular groove. After the connecting seat is connected with the connection cylindrical shell, the limiting plate of the connecting seat, end parts of the shell, and the annular groove form a closed sealing chamber, a sealing ring is assembled in the sealing chamber, and after the transparent cover body is fixedly connected with the supporting plate of the connecting seat, the center hole of the connecting seat is covered. The sealing structure for the mining intrinsic safety type camera can prevent dust from entering the shell.
Description
Technical field
The utility model relates to a kind of mining intrinsic safety electro gas equipment, is specifically related to a kind of hermetically-sealed construction of Mine-used I. S video camera.
Background technology
Coal is the important energy source of China, accounts for 70% of primary energy.China's coal-mine more than 95% is pit mining, the sound development that coal occurrence condition is poor, mining depth is dark, gas, coal dust, floods, fire, bump, underground heat etc. are perplexing coal industry, coal industry is the high risk industries in industrial and mining enterprises of China always.Analyze reason, the problems such as existing managerial confusion, low, the safe insufficient investment of peopleware, scientific research weakness, have again under coal mine the problems such as video monitoring equipment falls behind.
Video monitoring can be in real time, image, reflect truly the state of monitored object, is convenient to storage, can improve the efficiency of management and automatization level, pinpoints the problems and analysis afterwards while being convenient to urgency.Video camera is one of core building block in video monitoring system, under coal mine, widely used video camera is analog signal output at present, be divided into two kinds of modes of analog electrical signal output and analog optical signal output, for the video camera of analog electrical signal output have that transmission range is short, poor signal quality, the easy shortcoming that is disturbed; Video camera for analog optical signal output needs the aboveground laying optical cable of point-to-point ground post, has the shortcoming that networking model is single, quantities is large, networking cost is high, and adopts the video camera of analog signal output also to have following limitation.
Building analogue system also needs many equipment such as configuration monitoring device, analog vtr, matrix controller, picture separator, loaded down with trivial details and cost is high.Also there is inquiry, store difficult problem in analogue system, searches a picture and need to manually carry out rewinding or F.F. repeatedly, and the video recording of analogue system is stored in video tape, easily damaged, capacity is little, cost is high.
The camera lens of existing downhole video cameras and housing are poor in the sealing of sealing place, cause dust easily to enter in housing, thereby inner circuit board is polluted, and cause that the situation of short circuit occurs.
Summary of the invention
For above-mentioned technical problem, the purpose of this utility model is to provide a kind of hermetically-sealed construction of Mine-used I. S video camera, and the utility model can prevent that dust from entering in housing.
The hermetically-sealed construction of Mine-used I. S video camera, comprise housing and be arranged on the camera lens in housing, also comprise connection cylindrical shell, Connection Block, transparent cover body, described connection cylindrical shell is arranged on the internal face of one end that housing has camera lens, Connection Block is connected on the internal face that connects cylindrical shell, this Connection Block is provided with centre bore, the internal face of Connection Block is provided with supporting bracket radially, the outside wall surface of Connection Block is provided with limiting plate radially, in the outside wall surface of Connection Block, be also provided with a cannelure, described Connection Block be connected cylindrical shell connect after, limiting plate on Connection Block and the end of housing and cannelure form the annular seal space of a sealing, in sealing chamber, assemble a sealing ring, after transparent cover body is fixedly connected with the supporting bracket on Connection Block, to the centre bore capping on Connection Block.
In described supporting bracket and transparent cover body, be equipped with hole, described transparent cover body and supporting bracket are integrated by screw fastening, also comprise a cover plate with through hole, after this cover plate is fixed as one by binding agent and transparent cover body bonding, cover plate forms sealing to the aperture in the hole in transparent cover body.
Also comprise a location-plate, this location-plate is provided with pilot hole, the pilot hole matched in clearance on described camera lens and this location-plate.
Also comprise an infrared light compensating lamp, this infrared light compensating lamp is fixed on housing.
Adopt such scheme, described connection cylindrical shell is arranged on the internal face of one end that housing has camera lens, Connection Block is connected on the internal face that connects cylindrical shell, this Connection Block is provided with centre bore, the internal face of Connection Block is provided with supporting bracket radially, the outside wall surface of Connection Block is provided with limiting plate radially, in the outside wall surface of Connection Block, be also provided with a cannelure, described Connection Block be connected cylindrical shell connect after, limiting plate on Connection Block and the end of housing and cannelure form the annular seal space of a sealing, assemble a sealing ring in sealing chamber; After transparent cover body is fixedly connected with the supporting bracket on Connection Block, to the centre bore capping on Connection Block.By sealing structure, because each connecting portion is all sealed, tight each other, therefore can prevent that dust from entering in housing, thereby avoid inner circuit board to be subject to contamination by dust, stops the short trouble causing because of dust.
Environment for use of the present utility model
Ambient temperature: (40～60) ℃;
Average relative humidity: be not more than 95%(+25 ℃);
Atmospheric pressure: (80～106) kPa;
Under coal mine, there are methane and coal-dust explosion mixture, but without the occasion of destroying the corrosive gas insulating;
Vibration: 20m/s
2;
Impact: 300m/s
2.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 electrical block diagram of the present utility model;
1 is housing, and 2 is camera lens, and 3 for connecting cylindrical shell, and 4 is Connection Block, and 5 is transparent cover body, and 6 is supporting bracket, and 7 is limiting plate, and 8 is cover plate, and 9 is location-plate, and 10 is infrared light compensating lamp, and 11 is sealing ring.
Embodiment
With reference to Fig. 1 and Fig. 2, the hermetically-sealed construction of Mine-used I. S video camera of the present utility model, comprises housing 1 and is arranged on the camera lens 2 in housing, also comprises and connects cylindrical shell 3, Connection Block 4, transparent cover body 5.Described connection cylindrical shell 3 is arranged on the internal face of one end that housing has camera lens, Connection Block 4 is connected on the internal face that connects cylindrical shell 3, this Connection Block 4 is provided with centre bore, the internal face of Connection Block 4 is provided with supporting bracket 6 radially, the outside wall surface of Connection Block is provided with limiting plate 7 radially, in the outside wall surface of Connection Block 4, be also provided with a cannelure, described Connection Block 4 be connected cylindrical shell 3 and connect after, limiting plate 7 on Connection Block 4 and the end of housing and cannelure form the annular seal space of a sealing, assemble a sealing ring 11 in sealing chamber; After transparent cover body is fixedly connected with the supporting bracket on Connection Block, to the centre bore capping on Connection Block.In described supporting bracket 6 and transparent cover body 5, be equipped with hole, described transparent cover body 5 is integrated by screw fastening with supporting bracket 6, also comprise a cover plate 8 with through hole, after this cover plate 8 is fixed as one by binding agent and transparent cover body bonding, cover plate 8 forms sealing to the aperture in the hole in transparent cover body 5.Also comprise a location-plate 9, this location-plate 9 is provided with pilot hole, the pilot hole matched in clearance on described camera lens and this location-plate.Also comprise an infrared light compensating lamp 10, this infrared light compensating lamp 10 is fixed on housing 1.
Internal circuit of the present utility model is made up of CMOS imaging circuit, image processing circuit, power circuit and photoelectric switching circuit, the output of CMOS imaging circuit is connected with the input of image processing circuit, image processing circuit is connected with power circuit is two-way, and power circuit is connected with photoelectric switching circuit is two-way.
This video camera be by the network signal of output by Ethernet, or light signal is transmitted through the fiber to KJU18 Mine-used I. S network extender, then transfers to upper switch via network extender, finally passes to PC, shows on computers real time video image,
The utility model is under 0.5lux illumination condition in minimum ambient light illumination:
Picture resolution: 500TVL.
Grade is differentiated in brightness: 7 grades.
Under 150Lux-250Lux ambient light illumination:
Ethernet electrical interface (intrinsic safety):
Transmission means: full duplex TCP/IP electric signal transmission;
Transmission rate: 100Mbit/s
Operating voltage peak-to-peak value: 1.0V～5.0V.
Transmission range: be not more than 100m (using MHYV 4*2 type communication cable for mine).
Light signal output:
Optical interface form: SC;
Operation wavelength: 1310nm;
Fiber mode: single mode;
Light signal classification: network light signal;
Light emitting power: 0～-15dBm;
Receiving sensitivity :-30dBm;
Maximum transmission distance: 10km (transmitting power 0～-15dBm, receiving sensitivity-30dBm, single-mode optics signal, wavelength 1310nm, use the mining single mode fiber cable of MGTSV-2B1, attenuation coefficient 0.5dB/km, 12 of optical fiber contact sums, wherein 10 of hot melt contacts (each contact attenuation coefficient is 0.03dB), are flexibly connected 2 (each contact attenuation coefficient is 0.3dB) of point.
Claims (4)
1. the hermetically-sealed construction of Mine-used I. S video camera, comprise housing and be arranged on the camera lens in housing, it is characterized in that: also comprise connection cylindrical shell, Connection Block, transparent cover body, described connection cylindrical shell is arranged on the internal face of one end that housing has camera lens, Connection Block is connected on the internal face that connects cylindrical shell, this Connection Block is provided with centre bore, the internal face of Connection Block is provided with supporting bracket radially, the outside wall surface of Connection Block is provided with limiting plate radially, in the outside wall surface of Connection Block, be also provided with a cannelure, described Connection Block be connected cylindrical shell connect after, limiting plate on Connection Block and the end of housing and cannelure form the annular seal space of a sealing, in sealing chamber, assemble a sealing ring, after transparent cover body is fixedly connected with the supporting bracket on Connection Block, to the centre bore capping on Connection Block.
2. the hermetically-sealed construction of Mine-used I. S video camera according to claim 1, it is characterized in that: in described supporting bracket and transparent cover body, be equipped with hole, described transparent cover body and supporting bracket are integrated by screw fastening, also comprise a cover plate with through hole, after this cover plate is fixed as one by binding agent and transparent cover body bonding, cover plate forms sealing to the aperture in the hole in transparent cover body.
3. the hermetically-sealed construction of Mine-used I. S video camera according to claim 1, is characterized in that: also comprise a location-plate, this location-plate is provided with pilot hole, the pilot hole matched in clearance on described camera lens and this location-plate.
4. the hermetically-sealed construction of Mine-used I. S video camera according to claim 1, is characterized in that: also comprise an infrared light compensating lamp, this infrared light compensating lamp is fixed on housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825570.5U CN203645750U (en) | 2013-12-13 | 2013-12-13 | Sealing structure for mining intrinsic safety type camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825570.5U CN203645750U (en) | 2013-12-13 | 2013-12-13 | Sealing structure for mining intrinsic safety type camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645750U true CN203645750U (en) | 2014-06-11 |
Family
ID=50876968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320825570.5U Expired - Fee Related CN203645750U (en) | 2013-12-13 | 2013-12-13 | Sealing structure for mining intrinsic safety type camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203645750U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019170155A1 (en) * | 2018-03-08 | 2019-09-12 | 杭州海康威视数字技术股份有限公司 | Video camera |
| CN112377263A (en) * | 2020-11-20 | 2021-02-19 | 上海大屯能源股份有限公司江苏分公司 | Underground coal mine information publishing system |
-
2013
- 2013-12-13 CN CN201320825570.5U patent/CN203645750U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019170155A1 (en) * | 2018-03-08 | 2019-09-12 | 杭州海康威视数字技术股份有限公司 | Video camera |
| CN112377263A (en) * | 2020-11-20 | 2021-02-19 | 上海大屯能源股份有限公司江苏分公司 | Underground coal mine information publishing system |
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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: 20140611 Termination date: 20151213 |
|
| EXPY | Termination of patent right or utility model |