CN101594462A - Explosion-proof dust-ignition-proof spherical camera - Google Patents
Explosion-proof dust-ignition-proof spherical camera Download PDFInfo
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- CN101594462A CN101594462A CNA2009103026604A CN200910302660A CN101594462A CN 101594462 A CN101594462 A CN 101594462A CN A2009103026604 A CNA2009103026604 A CN A2009103026604A CN 200910302660 A CN200910302660 A CN 200910302660A CN 101594462 A CN101594462 A CN 101594462A
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Abstract
The present invention relates to a kind of explosion-proof dust-ignition-proof spherical camera, it comprises: housing and transparent ball cover; Transparent ball cover comprises: sphere portion and the cross section that is connected sphere portion top are the flared type installation portion of arc; The bottom of housing is provided with clamping ring, and the flared type installation portion of transparent ball cover is connected on the ball cover auxiliary section of clamping ring by epoxide-resin glue.Flared type installation portion and clamping ring are connected by epoxide-resin glue and realize being sealed and matched; Because the cross section of the flared type installation portion of ball cover is an arc, even if therefore when ball cover is subjected to big pressure, the disperseing at the stressed of flared type installation portion of ball cover is so be difficult for explosion.Therefore, the present invention not only has the advantage of traditional spheroidal video cameras such as volume is less, weight is light, rotating speed is very fast, the presetting bit precision is higher, the visual angle is unrestricted, also has explosion prevention function.
Description
Technical field
The present invention relates to a kind of explosion-proof dust-ignition-proof spherical camera, be applied to contain in the environment of the environment of damp or vapour mixture and combustible dust.
Background technology
Explosion-proof dust-ignition-proof type video camera is as the headend equipment of explosion-proof video monitoring command system closed-circuit TV system, undertaking the task of the real-time high-quality collection of image scene and fast-response control instruction, the running quality of whole video monitoring and commanding system is being played crucial effects.Explosion-proof dust-ignition-proof type video camera need satisfy the instructions for use of very special environment such as IIC gas group following (being typically hydrogen, acetylene, ethene, coke-stove gas, dimethyl ether etc.) and combustible dust, its manufacturing need meet IEC60079, IEC21641, the regulation of GB3836-2000 and GB12476.1-2000 standard; The video camera of present employed identical function mostly is branch body structure (for example disclosed video camera of Chinese patent literature notification number CN2904028), cable between each unit connects and exposes, volume is big, Heavy Weight, rotating speed is slow, the presetting bit precision is low, intelligent function does not possess, installation and maintenance difficulty, visual angle are restricted, to shortcomings such as environmental suitability differences.
And advantage such as existing spherical camera has that volume is less, weight is light, rotating speed is very fast, the presetting bit precision is higher, the visual angle is unrestricted, but above-mentioned existing spherical camera does not have explosion prevention function.Because, the transparent ball cover that existing video camera adopted as shown in Figure 6, being connected of the annular installation portion b on a of sphere portion of transparent ball cover and sphere portion a top is almost rectangular, annular installation portion b is arranged on the installation table top c in the spherical camera housing; During use, when a of sphere portion of transparent ball cover was subjected to big external pressure, the junction, right angle of a of sphere portion and installation portion b was because of concentrating stressed easy explosion, so cause existing spherical camera can not satisfy explosion-proof and requirement dust-ignition-proof.
Summary of the invention
Technical problem to be solved by this invention provides a kind of explosion-proof dust-ignition-proof spherical camera that can satisfy requirement of explosion proof.
For solving the problems of the technologies described above, explosion-proof dust-ignition-proof spherical camera of the present invention comprises: the cross section of upper and lower settings is inverted U-shaped housing and the one-time formed transparent ball cover of polycarbonate material; Transparent ball cover comprises: the sphere portion of hollow hemisphere shape and be the flared type installation portion of arc in the cross section on sphere portion top; The bottom of housing is provided with clamping ring, and clamping ring comprises: the connecting portion that is threaded with the bottom interior wall of housing and be connected in the ball cover auxiliary section that the outer wall with the flared type installation portion of connecting portion below matches; The flared type installation portion of transparent ball cover is connected on the ball cover auxiliary section of clamping ring by epoxide-resin glue.
Further, for guaranteeing the sealing of clamping ring and housing, the bottom outer rim of the connecting portion of clamping ring has the boss that cooperates with the cannelure of housing bottom inner edge, is provided with sealing gasket between boss and the described cannelure.
Further, for making transparent ball cover be fixed on the clamping ring and guaranteeing therebetween sealing, the connecting ring inboard is provided with rubber washer above the edge of the flared type installation portion of transparent ball cover, rubber washer top is provided with the trim ring on the inwall of the connecting portion that is threaded in clamping ring.
Further, for guaranteeing the sealing of power supply and data wire and housing, the top of housing has opening, is provided with the nut seat that power supply source and data wire pass in this opening, is provided with packing ring, O-ring seal that is enclosed within on power supply and the data wire and the clamp nut that is threaded with nut seat in the nut seat successively.
Further, housing is provided with sky shade, is used for preventing that the ball machine is by the sunlight direct projection.
Further, be provided with the movement cover in the housing, be provided with video camera in the movement cover, be used to control horizontal motor transmission mechanism that video camera rotates in the horizontal direction, be used to control pitching motor transmission mechanism that video camera rotates in vertical direction, be used to limit pitching position-limit mechanism and the camera position signals collecting mechanism of video camera at the vertical direction rotational angle.
The present invention has positive effect with respect to prior art: in (1) explosion-proof dust-ignition-proof spherical camera of the present invention, the cross section of transparent ball cover is that the flared type installation portion of arc and the clamping ring of housing bottom are connected by epoxide-resin glue and realize being sealed and matched; Because the cross section of the flared type installation portion of transparent ball cover is an arc, therefore in use, when the sphere portion of transparent ball cover was subjected to big pressure, the disperseing at the stressed of flared type installation portion of transparent ball cover was so be difficult for taking place the situation of explosion.Therefore, explosion-proof dust-ignition-proof spherical camera of the present invention has not only that volume is less, weight is light, very fast (120 °/s), the advantage of higher, the unrestricted equal sphere video camera in visual angle of presetting bit precision, also have explosion prevention function of rotating speed.(2) among the present invention, the flared type installation portion of transparent ball cover is connected on the ball cover auxiliary section of clamping ring by epoxide-resin glue, because epoxy resin is in colloidal state when gluing connection, the thickness that is beneficial to the epoxy resin between the ball cover auxiliary section of the flared type installation portion of transparent ball cover and clamping ring is evenly distributed, be beneficial to stressed at the flared type installation portion that disperses transparent ball cover, can prevent further that transparent ball cover is because of the unbalance stress explosion; The employing shell is a stainless steel casing, and transparent ball cover can be resisted at least 15 kilograms hydrostatic test.(3) explosion-proof dust-ignition-proof spherical camera of the present invention is applied to contain the environment of damp or vapour mixture, and the place of containing the combustible dust environment, and it can be transformed into signal of telecommunication transmission to image scene.And can pass through Long-distance Control, change the operating state of video camera.Be applied to fields such as oil, chemical industry, mining industry, transportation, scientific research.
Description of drawings
Fig. 1 is the cross-sectional view of explosion-proof dust-ignition-proof spherical camera among the embodiment;
Fig. 2 be among Fig. 1 A to partial view;
Fig. 3 is the enlarged drawing of the local B among Fig. 1;
Fig. 4 is the cross section view of the clamping ring among Fig. 3;
Fig. 5 is the cross section view of the transparent ball cover among Fig. 1;
Fig. 6 is the cross section view of transparent ball cover of the prior art;
Fig. 7 is the circuit structure block diagram of explosion-proof dust-ignition-proof spherical camera among the embodiment.
Reference numeral:
1: clamp nut, 2: O-ring seal, 3: video camera, 4: nut seat, 5: power supply and data wire, 6: housing, 7: sky shade, 8: black lining, 9: the video camera mounting panel, 10: temperature control assembly, 11: horizontal driving motor, 12: trim ring, 13: sealing gasket, 14: rubber washer, 15: clamping ring, 15-1: ball cover auxiliary section, 15-2: connecting portion, 15-3: boss, 16: epoxy resin, 17: transparent ball cover, 18: the pitching position-limit mechanism, 19: movement cover, 20: pitching driving motor, 21: circuit board.
A: sphere portion, b: annular installation portion, c: table top is installed, d: flared type installation portion.
Embodiment
See Fig. 1-5, the explosion-proof dust-ignition-proof spherical camera of present embodiment comprises: the cross section of upper and lower settings is inverted U-shaped housing 6 and the one-time formed transparent ball cover 17 of polycarbonate material; Transparent ball cover 17 comprises: a of sphere portion of hollow hemisphere shape and be the flared type installation portion d of arc in the cross section on sphere portion a top; The bottom of housing 6 is provided with clamping ring 15, and clamping ring 15 comprises: the connecting portion 15-2 that is threaded with the bottom interior wall of housing 6 and be connected in the ball cover auxiliary section 15-1 that the outer wall with flared type installation portion d of connecting portion 15-2 below matches; The flared type installation portion d of transparent ball cover 17 is by epoxy resin 16 gluing being connected on the 15-1 of ball cover auxiliary section.
The bottom outer rim of the connecting portion 15-2 of clamping ring 15 has the boss 15-3 that cooperates with the cannelure of housing 6 bottom inner edges, is provided with sealing gasket 13 between boss 15-3 and the described cannelure.Connecting ring 15-2 inboard is provided with rubber washer 14 above the edge of the flared type installation portion d of transparent ball cover 17, rubber washer 14 tops are provided with the trim ring 12 on the inwall of the connecting portion 15-2 that is threaded in clamping ring 15.
The top of described housing 6 has opening, is provided with the nut seat 4 that power supply source and data wire 5 pass in this opening, is provided with packing ring, O-ring seal 2 that is enclosed within on power supply and the data wire 5 and the clamp nut 1 that is threaded with nut seat 4 in the nut seat 4 successively.Described housing 6 is provided with sky shade 7.
Be provided with movement cover 25 in the described housing 6, be provided with video camera 3 in the movement cover 25, be used to control horizontal motor transmission mechanism that video camera 3 rotates in the horizontal direction, be used to control pitching motor transmission mechanism that video camera 3 rotates in vertical direction, be used to limit pitching position-limit mechanism 18 and the camera position signals collecting mechanism of video camera 3 at the vertical direction rotational angle.
Video camera is made up of the two large divisions: flame proof protective cover, movement.Movement includes video camera, level, pitching motor transmission mechanism, position-limit mechanism, position signal acquisition mechanism, decoder.Movement is loaded in the flame proof protective cover by the fast-assembling interface.Various holding wires directly pass through in the inner space of flame proof protective cover.Movement horizontal component, pitching part all adopt band transmission synchronously.Decoder, circuit board are fixedly mounted on the movement by screw.Position-limit mechanism is installed on the movement main body, wherein the horizontal component infinite place.
The structure of the video camera core section in the housing 6 is: binding post is fixed on the keyset, then keyset is fixed in the housing 6.The circuit board 21 that contains position signal acquisition function, decoding function is fixed on the movement main body, is used for realizing the conversion of signals of ball machine level and pitch position and the function that signal is encoded.Horizontal driving motor 11 is fixed on the movement main body, second belt pulley is fixed on the horizontal driving motor 11, with first belt first belt pulley and second belt pulley are linked together then, again with second positioning sleeve first belt pulley location and fix, mounted horizontal transmission mechanism will make movement carry out unrestricted 360 ° of rotations in the horizontal direction.Pitching driving motor 20 is fixed on the movement main body, the 4th belt pulley is fixed on the pitching driving motor 20, with second belt the 3rd belt pulley and the 4th belt pulley are linked together then, at last with first positioning sleeve by being threaded with the 3rd belt pulley location and fixing, mounted pitching transmission mechanism will make movement rotate in pitch orientation.By the pitching position-limit mechanism 18 that the screw on foundry goods on the movement and the 3rd belt pulley is formed, can guarantee the ball machine at the pitch orientation rotational angle in allowed band.The video camera mounting panel is fixed on the 3rd belt pulley, video camera 3 is fixed on the video camera mounting panel, will deceive lining 8 then and be fixed on the movement main body.The fast-assembling interface is fixed on the Installing Plate, then Installing Plate is fixed in the housing 6 again.Power panel is fixed on the movement housing, again the movement main body that assembles is fixed in the movement housing, then the core section that assembles is inserted the fast-assembling interface.Temperature control assembly 10 is fixed in the housing 6, is used for regulating ball machine internal temperature.
See Fig. 7, circuit board 21 is accepted by external control signal and power supply.External control signal is the digital signal through coding, has wherein comprised driving, the Position Control of level and pitching driving motor, the information such as control of video camera 3, and circuit board 21 is realized various controlled function to the digital signal decoding through coding.The pitching position-limit mechanism guarantees that various motions are in controlled range.It is that location status is transformed into the circuit board 21 acceptable signals of telecommunication that level and pitch position detect, and realizes the closed-loop control to the position.Video camera 3 picture signal convert to the signal of telecommunication by cable transmission to the control room.Equipment such as video camera and transmission, demonstration, record are formed the video monitoring command system.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (5)
1. explosion-proof dust-ignition-proof spherical camera, it is characterized in that comprising: the cross section of upper and lower settings is inverted U-shaped housing (6) and the one-time formed transparent ball cover of polycarbonate material (17);
Transparent ball cover (17) comprising: the sphere portion (a) of hollow hemisphere shape and be the flared type installation portion (d) of arc in the cross section on sphere portion (a) top;
The bottom of housing (6) is provided with clamping ring (15), and clamping ring (15) comprising: the connecting portion (15-2) that is threaded with the bottom interior wall of housing (6) and be connected in the ball cover auxiliary section (15-1) that the outer wall with flared type installation portion (d) of connecting portion (15-2) below matches; The flared type installation portion (d) of transparent ball cover (17) is by on the gluing ball cover auxiliary section (15-1) that is connected clamping ring (15) of epoxy resin (16).
2. explosion-proof dust-ignition-proof spherical camera according to claim 1, it is characterized in that: the bottom outer rim of the connecting portion (15-2) of clamping ring (15) has the boss (15-3) that cooperates with the cannelure of housing (6) bottom inner edge, is provided with sealing gasket (13) between boss (15-3) and the described cannelure.
3. explosion-proof dust-ignition-proof spherical camera according to claim 2, it is characterized in that: the top, edge of the inboard flared type installation portion (d) at transparent ball cover (17) of described connecting ring (15-2) is provided with rubber washer (14), and rubber washer (14) top is provided with the trim ring (12) on the inwall of the connecting portion (15-2) that is threaded in clamping ring (15).
4. explosion-proof dust-ignition-proof spherical camera according to claim 3, it is characterized in that: the top of described housing (6) has opening, be provided with the nut seat (4) that power supply source and data wire (5) pass in this opening, be provided with packing ring, O-ring seal (2) that is enclosed within on power supply and the data wire (5) and the clamp nut (1) that is threaded with nut seat (4) in the nut seat (4) successively.
5. according to claim 3 or 4 described explosion-proof dust-ignition-proof spherical cameras, it is characterized in that: described housing (6) is provided with sky shade (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103026604A CN101594462B (en) | 2009-05-27 | 2009-05-27 | Explosion-proof dust-ignition-proof spherical camera |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103026604A CN101594462B (en) | 2009-05-27 | 2009-05-27 | Explosion-proof dust-ignition-proof spherical camera |
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| Publication Number | Publication Date |
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| CN101594462A true CN101594462A (en) | 2009-12-02 |
| CN101594462B CN101594462B (en) | 2010-09-01 |
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| CN2009103026604A Active CN101594462B (en) | 2009-05-27 | 2009-05-27 | Explosion-proof dust-ignition-proof spherical camera |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868854A (en) * | 2012-10-18 | 2013-01-09 | 常州市佐安电器有限公司 | Anti-explosion video camera |
| CN103838063A (en) * | 2014-02-26 | 2014-06-04 | 浙江宇视科技有限公司 | Waterproof structure and camera |
| CN104284069A (en) * | 2014-10-20 | 2015-01-14 | 中山市安领星电子科技有限公司 | Split infrared waterproof high-resolution security camera |
| CN104683670A (en) * | 2014-12-26 | 2015-06-03 | 常州市盛和电子有限公司 | Anti-explosion image pickup instrument |
| CN114812734A (en) * | 2022-06-27 | 2022-07-29 | 山东石油化工学院 | Automatic monitoring system for oil-water interface in tank |
| TWI800075B (en) * | 2020-09-21 | 2023-04-21 | 美商谷歌有限責任公司 | Camera device with an adjustable stand |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1567344A (en) * | 2003-06-23 | 2005-01-19 | 威视科技股份有限公司 | Face monitoring system and method |
| CN1567370A (en) * | 2003-06-23 | 2005-01-19 | 威视科技股份有限公司 | video processing method and device |
| CN2904028Y (en) * | 2006-05-17 | 2007-05-23 | 常州市盛和电子有限公司 | Explosion-proof integrated video camera |
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2009
- 2009-05-27 CN CN2009103026604A patent/CN101594462B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868854A (en) * | 2012-10-18 | 2013-01-09 | 常州市佐安电器有限公司 | Anti-explosion video camera |
| CN103838063A (en) * | 2014-02-26 | 2014-06-04 | 浙江宇视科技有限公司 | Waterproof structure and camera |
| CN104284069A (en) * | 2014-10-20 | 2015-01-14 | 中山市安领星电子科技有限公司 | Split infrared waterproof high-resolution security camera |
| CN104683670A (en) * | 2014-12-26 | 2015-06-03 | 常州市盛和电子有限公司 | Anti-explosion image pickup instrument |
| CN104683670B (en) * | 2014-12-26 | 2017-12-01 | 常州市盛和电子有限公司 | Explosion-proof camera shooting instrument |
| TWI800075B (en) * | 2020-09-21 | 2023-04-21 | 美商谷歌有限責任公司 | Camera device with an adjustable stand |
| US11659677B2 (en) | 2020-09-21 | 2023-05-23 | Google Llc | Structural midframe for an electronic device having a camera and a speaker |
| US11968795B2 (en) | 2020-09-21 | 2024-04-23 | Google Llc | Structural midframe for an electronic device having a camera and a speaker |
| CN114812734A (en) * | 2022-06-27 | 2022-07-29 | 山东石油化工学院 | Automatic monitoring system for oil-water interface in tank |
| CN114812734B (en) * | 2022-06-27 | 2022-12-23 | 山东石油化工学院 | Automatic monitoring system for oil-water interface in tank |
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| Publication number | Publication date |
|---|---|
| CN101594462B (en) | 2010-09-01 |
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