CN204697164U - A kind of intrinsic safety type wireless video camera - Google Patents
A kind of intrinsic safety type wireless video camera Download PDFInfo
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- CN204697164U CN204697164U CN201520459176.3U CN201520459176U CN204697164U CN 204697164 U CN204697164 U CN 204697164U CN 201520459176 U CN201520459176 U CN 201520459176U CN 204697164 U CN204697164 U CN 204697164U
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- intrinsic safety
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Abstract
A kind of intrinsic safety type wireless video camera, it relates to a kind of video camera.The purpose of this utility model easily causes the problem of this section of circuit and video camera bias.The utility model comprises protecgulum, front end transparent components, cylindrical shell, back shroud and the bonnet installed successively from front to back, protecgulum and bonnet are annular lid, the edge of back shroud is provided with the alignment pin of some asymmetrical projections, the back-end ports of cylindrical shell is provided with some asymmetrical positioning ports, position and the form fit of alignment pin and positioning port are corresponding, front end transparent components is fixed on barrel front end by protecgulum, the alignment pin of back shroud inserts in the positioning port of cylinder back-end, and bonnet installs the rear end of cylindrical shell by screw thread.The utility model structure is simple, be convenient to dismounting, sturdy and durable.
Description
Technical field
The utility model relates to a kind of video camera, is specifically related to a kind of intrinsic safety type wireless video camera, belongs to camcorder technology field.
Background technology
Video camera is when underground coal mine uses, in order to ensure safety in production, must use the one in flame-proof type, Flameproof and intrinsically safe and intrinsic safety type, camera housing must meet national safety of coal mines standard 3836.1-2010 " Electric Equipment in Explosive Gas Atmosphere part 1 General Requirement ".Usual intrinsic safety type camera housing is made up of four parts, is respectively protecgulum, cylindrical shell, bonnet fastener and bracket.
The optical cable and the cable that connect video camera due to underground coal mine adverse circumstances and when producing very easily fracture, cause fault of camera, therefore intrinsic safety type video camera is in use, a lot of inconvenience is brought during maintenance, workload can be strengthened, particularly the enclosure volume of intrinsic safety type fiber optic camera machine is less, optical fiber is needed to carry out welding when mounted, when cable is connected, due to the reason of the structural design of intrinsic safety type video camera, camera housing and bonnet fastener are produced and rotates relative displacement, very easily cause the problem that power line and communication optical fiber fracture again, when solving this problem to housing design, common solution has following 3 kinds of methods:
First method: flange connect, by video camera cylinder back-end welding flange, with bolt, bonnet ring flange and barrel soldering ring flange are being fixed, though this method is not easy to produce rotate relative displacement, but on flange set bolt more when maintenance of underground tears bonnet open or install time workload larger, also easily cause video camera Barrel alignment to depart from, camera is not in housing middle problem simultaneously.
Second method: spiral bonnet connects, all screw socket is had in cylindrical shell front and back end, bonnet and back shroud are integrated, being fixed together with antenna pedestal and loudspeaker nozzle is screwed on cylindrical shell, relative displacement is rotated because camera housing and bonnet fastener produce, cause feed cable and communication optical fiber to be wound around mutually, very easily fibercuts occurs.
The third method: split type spiral bonnet connects, screw socket is had equally in cylindrical shell front and back end, but bonnet and back shroud are split, only turn bonnet when screwing, back shroud keeps motionless, and internal circuit board, optical fiber and cable can not produce rotation relative displacement, but when being about to screw, because the frictional force between bonnet and back shroud is greater than the frictional force between back shroud and cylindrical shell, so also can cause a small amount of swing offset, cable and communication optical fiber are likely wound around generation fibercuts.
Utility model content
The purpose of this utility model easily causes circuit to fracture and the problem of video camera bias to solve video camera of the prior art.
The technical solution of the utility model: a kind of intrinsic safety type wireless video camera, comprise the protecgulum installed successively from front to back, front end transparent components, cylindrical shell, back shroud and bonnet, it is characterized in that: protecgulum and bonnet are annular lid, the outer wall of protecgulum and bonnet is provided with anti-slip veins, the sidewall of back shroud is provided with the alignment pin of some projections, the inwall of the back-end ports of cylindrical shell is provided with some detents, alignment pin mates corresponding with detent, vertical fixed head and the drawer plate of level is provided with in described cylindrical shell, described fixed head is arranged on the front end of drawer plate, the rear end of drawer plate is fixedly connected with back shroud, described fixed head is provided with camera, drawer plate is provided with Optical Interface Board, described Optical Interface Board comprises power supply plate, wireless network card and photoelectric conversion module, power supply plate comprises the first isolation modular converter and the second isolation modular converter, described front end transparent components is fixed on barrel front end by protecgulum, the alignment pin of back shroud inserts in the detent of cylinder back-end, bonnet is arranged on the rear end of cylindrical shell by screw thread, the output of camera connects wireless network card, the output of wireless network card connects the signal input part of photoelectric conversion module, the output of described first isolation modular converter connects camera and photoelectric conversion module respectively, the output of the second isolation modular converter connects wireless network card.
Described back shroud is provided with antennal interface, power line introduction hole, the power line communicating joint coaxial with power line introduction hole, optical fiber introduction hole and the optical fiber cable communicating joint coaxial with optical fiber introduction hole, power line communicating joint and optical fiber communicating joint are arranged on the rear end face of back shroud, described power line communicating joint is identical with the structure of optical fiber cable communicating joint, coaxial mounted first rubber ring is provided with from front to back successively in power line communicating joint, pad, packing ring and clamp nut, described clamp nut is by being threaded in power line communicating joint, power line passes power line communicating joint and power line introduction hole and power supply plate and connects, optical fiber cable passes optical fiber cable communicating joint and optical fiber cable introduction hole and photoelectric conversion module and connects.Power line and optical fiber cable are separately worn as in cylindrical shell, decreases the possibility of the winding between circuit.
Described intrinsic safety type wireless video camera comprises video camera lamp plate, and video camera lamp plate is arranged on fixed head, and the output of described first isolation modular converter connects video camera lamp plate.
Described a kind of intrinsic safety type wireless video camera comprises anchor ear and bracket, and described bracket is placed in the lower end of cylindrical shell, and bracket and cylindrical shell are connected by anchor ear, and convenient disassembly is beneficial to maintenance.
Be equipped with rubber blanket between described front end transparent components and protecgulum and between front end transparent components and cylindrical shell, not only play sealing function, can also play a protective role to transparent components simultaneously.
Described front end transparent components comprises clear glass, while giving the protection of intrinsic safety type camera secure, has high-transmittance again, does not affect the definition of video camera.
The second rubber ring is provided with between described back shroud and bonnet.
Described cylindrical shell is stainless steel cylinder, can tackle general the colliding with under mine, and smooth surface, not easily gets rusty.
The utility model compared with prior art has following effect: the utility model adopts split spiral bonnet to add alignment pin mode, solve intrinsic safety type wireless video camera, fiber management tray cannot be placed in the housing of narrow space, and bonnet rotating plate turns and causes optical cable frangibility, the problem of camera bias, also solves in installation process the problem that extracting tool must be used to dismantle, by the antiskid thread on protecgulum and bonnet simultaneously, just protecgulum and bonnet can be pulled down or assembled, simple and convenient.Through the original installment work adopting the video camera of flange connect to need to complete for 1 hour of contrast, adopt split spiral bonnet to add can to save after alignment pin mode fills the set-up time of 15 minutes, increase work efficiency 33%, two screw socket cylindrical shell before and after adopting, structure is simple, be convenient to dismounting, sturdy and durable, cylindrical shell place is provided with detent, the former device angles of drawer plate and inside can be fixed, prevent when tightening, because the frictional force between back shroud and ring-like bonnet is greater than the frictional force of back shroud and cylindrical shell, and the image angle caused changes or because the anglec of rotation is excessive, communication optical fiber winding is broken, the utility model adopts optical fiber or wireless network transmissions, the first isolation modular converter and the second isolation modular converter is utilized to be respectively camera, photoelectric conversion module and wireless network card are powered, there is good power supply effect and isolation effect, ensure that quality and the real-time of image transmitting, the utility model can be applied in mining industry, in the field such as forest and fire-fighting, have wide range of applications.
Accompanying drawing explanation
Fig. 1, overall structure cutaway view of the present utility model;
Fig. 2, the structured flowchart of the utility model camera and Optical Interface Board
Fig. 3, right view of the present utility model;
Fig. 4, the utility model back shroud cutaway view;
Fig. 5, this practical back shroud intercalation enters the structural representation of cylinder back-end;
Fig. 6, the structural representation of drawer plate of the present utility model, wherein a is the vertical view of drawer plate, and b is the left view of drawer plate, and c is the right view of drawer plate;
Fig. 7, front view of the present utility model;
In figure 1, protecgulum, 2, front end transparent components, 3, cylindrical shell, 4, fixed head, 5, drawer plate, 6, bonnet, 7, back shroud, 8-1, power line communicating joint, 8-2, optical fiber cable communicating joint, 9, clamp nut, 10, packing ring, 11, pad, 12, the first rubber ring, the 13, second rubber ring, 14, as rubber cushion, 15, bracket, 16, anchor ear, 17, antennal interface, 18, alignment pin, 19, detent, 20, power line introduction hole.
Embodiment
Accompanying drawings embodiment of the present utility model, a kind of intrinsic safety type wireless video camera of present embodiment, comprise the protecgulum 1 installed successively from front to back, front end transparent components 2, cylindrical shell 3, back shroud 7 and bonnet 6, protecgulum 1 and bonnet 6 are annular lid, the outer wall of protecgulum 1 and bonnet 6 is provided with anti-slip veins, the sidewall of back shroud 7 is provided with the alignment pin 18 of some projections, the inwall of the back-end ports of cylindrical shell 3 is provided with some detents 19, alignment pin 18 mates corresponding with detent 19, drawer plate 5 and fixed head 4 is provided with in cylindrical shell 3, described fixed head 4 is arranged on the front end of drawer plate 5, the rear end of drawer plate 5 is fixedly connected with back shroud 7, described fixed head 4 is vertically arranged, fixed head 4 is vertical with drawer plate 5, described fixed head 4 is provided with camera, drawer plate 5 is provided with Optical Interface Board, described Optical Interface Board comprises power supply plate, wireless network card and photoelectric conversion module, power supply plate comprises the first isolation modular converter and the second isolation modular converter, described front end transparent components 2 is fixed on cylindrical shell 3 front end by protecgulum 1, the alignment pin 18 of back shroud 7 inserts in the detent 19 of cylindrical shell 3 rear end, bonnet 6 installs the rear end of cylindrical shell 3 by screw thread, the output of camera connects wireless network card, the output of wireless network card connects the signal input part of photoelectric conversion module, the output of described first isolation modular converter connects camera and photoelectric conversion module respectively, the output of the second isolation modular converter connects wireless network card.
Described back shroud 7 is provided with antennal interface 17, power line introduction hole 20, the power line communicating joint 8-1 coaxial with power line introduction hole 20, optical fiber introduction hole and the optical fiber cable communicating joint 8-2 coaxial with optical fiber introduction hole, power line communicating joint 8-1 and optical fiber communicating joint are arranged on the rear end face of back shroud 7, described power line communicating joint 8-1 is identical with the structure of optical fiber cable communicating joint 8-2, coaxial mounted first rubber ring 12 is provided with from front to back successively in power line communicating joint 8-1, pad 11, packing ring 10 and clamp nut 9, described clamp nut 9 is by being threaded in power line communicating joint 8-1, power line connects with power supply plate through power line communicating joint 8-1 and power line introduction hole 20, optical fiber cable passes optical fiber cable communicating joint 8-2 and optical fiber cable introduction hole and photoelectric conversion module and connects.
Described intrinsic safety type wireless video camera comprises video camera lamp plate, and described video camera lamp plate annular array is arranged on the edge of the front end face of fixed head, and the output of described first isolation modular converter connects video camera lamp plate.
Described a kind of intrinsic safety type wireless video camera comprises anchor ear 16 and bracket 15, and described bracket 15 is placed in the lower end of cylindrical shell 3, and bracket 15 and cylindrical shell 3 are connected by anchor ear 16.
Rubber blanket 14 is equipped with between described front end transparent components 2 and protecgulum 1 and between front end transparent components 2 and cylindrical shell 3.
Described front end transparent components 2 comprises the thick toughened glass of 4mm.
The second rubber ring 13 is provided with between described back shroud 7 and bonnet 6.
Described cylindrical shell 3 is stainless steel cylinder 3.
Described cylindrical shell 3 adopts stainless steel 304 material, and thickness is 2mm, and protecgulum 1 and bonnet 6 play the effect preventing from automatically getting loose, and degree of protection reaches IP54.
Power line connects through power line introduction hole and power supply plate, for whole video camera provides power supply, then, isolating modular converter by first is that video camera lamp plate, camera and photoelectric conversion module are powered, isolating modular converter by second is that wireless network card is powered, not only play good power supply function, also there is the well jamming-proof effect of isolation simultaneously.
Claims (8)
1. an intrinsic safety type wireless video camera, comprise the protecgulum installed successively from front to back, front end transparent components, cylindrical shell, back shroud and bonnet, it is characterized in that: protecgulum and bonnet are annular lid, the outer wall of protecgulum and bonnet is provided with anti-slip veins, the sidewall of back shroud is provided with the alignment pin of some projections, the inwall of the back-end ports of cylindrical shell is provided with some detents, alignment pin mates corresponding with detent, vertical fixed head and the drawer plate of level is provided with in described cylindrical shell, described fixed head is arranged on the front end of drawer plate, the rear end of drawer plate is fixedly connected with back shroud, described fixed head is provided with camera, drawer plate is provided with Optical Interface Board, described Optical Interface Board comprises power supply plate, wireless network card and photoelectric conversion module, power supply plate comprises the first isolation modular converter and the second isolation modular converter, described front end transparent components is fixed on barrel front end by protecgulum, the alignment pin of back shroud inserts in the detent of cylinder back-end, bonnet is arranged on the rear end of cylindrical shell by screw thread, the output of camera connects wireless network card, the output of wireless network card connects the signal input part of photoelectric conversion module, the output of described first isolation modular converter connects camera and photoelectric conversion module respectively, the output of the second isolation modular converter connects wireless network card.
2. a kind of intrinsic safety type wireless video camera according to claim 1, it is characterized in that: described back shroud is provided with antennal interface, power line introduction hole, the power line communicating joint coaxial with power line introduction hole, optical fiber introduction hole and the optical fiber cable communicating joint coaxial with optical fiber introduction hole, power line communicating joint and optical fiber communicating joint are arranged on the rear end face of back shroud, described power line communicating joint is identical with the structure of optical fiber cable communicating joint, coaxial mounted first rubber ring is provided with from front to back successively in power line communicating joint, pad, packing ring and clamp nut, described clamp nut is by being threaded in power line communicating joint, power line passes power line communicating joint and power line introduction hole and power supply plate and connects, optical fiber cable passes optical fiber cable communicating joint and optical fiber cable introduction hole and photoelectric conversion module and connects.
3. a kind of intrinsic safety type wireless video camera according to claim 1 or claim 2, it is characterized in that: a kind of intrinsic safety type wireless video camera comprises video camera lamp plate, video camera lamp plate is arranged on fixed head, and the output of described first isolation modular converter connects video camera lamp plate.
4. a kind of intrinsic safety type wireless video camera according to claim 1 or claim 2, is characterized in that: described a kind of intrinsic safety type wireless video camera comprises anchor ear and bracket, and described bracket is placed in the lower end of cylindrical shell, and bracket and cylindrical shell are connected by anchor ear.
5. a kind of intrinsic safety type wireless video camera according to claim 1 or claim 2, is characterized in that: be equipped with rubber blanket between described front end transparent components and protecgulum and between front end transparent components and cylindrical shell.
6. a kind of intrinsic safety type wireless video camera according to claim 1 or claim 2, is characterized in that: described front end transparent components comprises clear glass.
7. a kind of intrinsic safety type wireless video camera according to claim 1 or claim 2, is characterized in that: be provided with the second rubber ring between described back shroud and bonnet.
8. a kind of intrinsic safety type wireless video camera according to claim 1 or claim 2, is characterized in that: described cylindrical shell is stainless steel cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459176.3U CN204697164U (en) | 2015-06-30 | 2015-06-30 | A kind of intrinsic safety type wireless video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459176.3U CN204697164U (en) | 2015-06-30 | 2015-06-30 | A kind of intrinsic safety type wireless video camera |
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| Publication Number | Publication Date |
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| CN204697164U true CN204697164U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520459176.3U Active CN204697164U (en) | 2015-06-30 | 2015-06-30 | A kind of intrinsic safety type wireless video camera |
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| CN (1) | CN204697164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155997A (en) * | 2018-01-04 | 2018-06-12 | 联想(北京)有限公司 | Network interface card, information acquisition method, client and electronic equipment |
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2015
- 2015-06-30 CN CN201520459176.3U patent/CN204697164U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155997A (en) * | 2018-01-04 | 2018-06-12 | 联想(北京)有限公司 | Network interface card, information acquisition method, client and electronic equipment |
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