CN102809875B - Sealing structure of spherical security monitoring device - Google Patents
Sealing structure of spherical security monitoring device Download PDFInfo
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- CN102809875B CN102809875B CN201210268219.0A CN201210268219A CN102809875B CN 102809875 B CN102809875 B CN 102809875B CN 201210268219 A CN201210268219 A CN 201210268219A CN 102809875 B CN102809875 B CN 102809875B
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- support base
- main support
- inner casing
- cover
- frame
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Abstract
The invention discloses a sealing structure of a spherical security monitoring device. The sealing structure comprises a protecting cover, a horizontal spindle frame, an inner shell, a main support base and a mounting frame. The main support base is connected onto the inner shell, and a cavity is formed between the main support base and the inner shell; an inner shell sealing pad is arranged at a joint between the main support base and the inner shell; the lower end of the mounting frame penetrates out of a lower opening of the protecting cover, and a camera mounting cavity and a threading groove communicated with the camera mounting cavity are arranged in the mounting frame; a via hole is arranged on the main support base; and a main support base sealing pad is arranged at a joint between the outer side of the via hole and the mounting frame. The inner shell, the main support base and the mounting frame are reasonably arranged, and the main support base sealing pad and the inner shell sealing pad are adopted, so that sealing and waterproofing properties can be improved, rainwater is prevented from entering the cavity, and the service life of the spherical security monitoring device is prolonged. Besides, the sealing structure is simple, speedy and convenient to install, and assembly efficiency of the sealing structure is improved beneficially.
Description
Technical field
The present invention relates to field of monitoring devices, be specifically related to a kind of hermetically-sealed construction of spherical security monitoring device.
Background technology
Along with improving constantly of living standard, spherical security monitoring device is widely used in outdoor.The housing of existing spherical security monitoring device is generally provided with the cavity of the device such as power supply machine, circuit board placement, but because the structural design of housing is unreasonable, when spherical security monitoring device works, rainwater easily enters to cavity inside through the gap between housing part, has a strong impact on the serviceable life of its spherical security monitoring device.
Summary of the invention
For the deficiencies in the prior art, object of the present invention is intended to the hermetically-sealed construction providing a kind of spherical security monitoring device, by rationally arranging inner casing, main support base and installation frame, and adopt the design of main support base seal pad and inner casing sealing gasket, water-tight performance can be improved, thus prevent rainwater from entering in cavity through the gap between part, extend the serviceable life of spherical security monitoring device.
For achieving the above object, the present invention adopts following technical scheme:
A hermetically-sealed construction for spherical security monitoring device, comprise protecting cover, be positioned at the horizontal spindle frame of protecting cover, to be arranged on horizontal spindle frame and can relative level main shaft frame rotate inner casing, main support base, be positioned at the installation frame be connected below main support base and with main support base; Main support base is connected on inner casing, and forms a cavity between main support base and inner casing; The junction that main support base connects with inner casing is provided with inner casing sealing gasket; The lower end of installation frame passes from the under shed of protecting cover, and the Wire channel in building being provided with video camera installation cavity in this installation frame, being communicated with video camera installation cavity; Main support base is provided with the via be communicated with Wire channel in building; The junction that the outside of described via connects with installation frame is provided with main support base seal pad.
The peripheral edge of bottom place of inner casing is provided with the circumferential bending part extended outwardly; Main support base is provided with the circumferential outer portion be arranged in circumferential bending part, and described inner casing sealing gasket is between circumferential bending part inwall and circumferential outer portion.
The upper end of inner casing is provided with the Upper shaft sleeve extended upward, is provided with clutch shaft bearing in Upper shaft sleeve, and described horizontal spindle frame is provided with the Lower shaft sleeve towards downward-extension, and this Lower shaft sleeve is arranged in clutch shaft bearing; The bearing of trend of described Lower shaft sleeve is consistent with the bearing of trend of protecting cover.
The inwall of the upper end of protecting cover is provided with circumferential casting die, and horizontal spindle frame is connected on circumferential casting die, and the junction that horizontal spindle frame connects with circumferential casting die is provided with horizontal spindle sealing gasket.
Sealing structure also comprises the support be positioned at above protecting cover, and this support is connected on protecting cover by connector; Described connector is provided with the cylindrical portion extended upward, and described support is provided with rack mounting apertures, and described cylindrical portion is interted in rack mounting apertures, and is provided with connector sealing ring between the inwall of rack mounting apertures and cylindrical portion.
The lower end of connector is provided with connector mounting hole, and the upper end of protecting cover is provided with the upper bush extended upward, and described upper bush interts in connector mounting hole, and is provided with upper casing sealing gasket between connector and the upper end of protecting cover.
Installation frame comprises the side cover be connected on main support base, is positioned at the inner casing cover of side cover inside, is arranged on the rotating bezel on inner casing cover; Described video camera installation cavity is arranged in rotating bezel, and the lower end of this rotating bezel passes from the under shed of side cover; Described Wire channel in building, between side cover and inner casing cover, the junction that side cover lower end connects with inner casing cover is also provided with side cover O-ring seal; Main support base is provided with downward opening annular groove, and described via is positioned on the roof of annular groove, and the upper end of described side cover, inner casing cover is arranged in annular groove, and main support base seal pad is between the upper end and annular groove of side cover, inner casing cover.
This inner casing cover is provided with bearing seat, the axis of described bearing seat is vertical with the bearing of trend of protecting cover, bearing seat is also provided with bearing, the both sides of described rotating bezel are respectively equipped with the rotation axis extended outwardly, this rotation axis is arranged in bearing, described rotation axis is provided with linked hole, and described Wire channel in building is communicated with video camera installation cavity by linked hole.
Described rotating bezel comprises front frame, after-frame, and the joint face that front frame is connected with after-frame is provided with rotating bezel O-ring seal.
The upper end of described protecting cover is a upper casing, and protecting cover also comprises the case ring be positioned at below upper casing, is provided with gap between upper casing and case ring; The upper end of this case ring forms an embedding slot, and the bottom of described inner casing is inlaid in embedding slot.
The hermetically-sealed construction of a kind of spherical security monitoring device set forth in the present invention, its beneficial effect is:
1, by rationally arranging inner casing, main support base and installation frame, and adopt the design of main support base seal pad and inner casing sealing gasket, water-tight performance can be improved, thus prevent rainwater from gap between inner casing and main support base, or enter in cavity from gap between main support base and installation frame, extend the serviceable life of spherical security monitoring device;
2 and, by adopting the design of circumferential bending part, circumferential outer portion and annular groove, can further improve sealing property and water resistance;
3, its assembling is simple and convenient, is conducive to improving its packaging efficiency.
Accompanying drawing explanation
Fig. 1 is inner structure schematic diagram of the present invention;
Fig. 2 is cut-open view of the present invention;
Wherein, 1, support; 11, rack mounting apertures; 12, waterproof chock plug; 2, connector; 21, cylindrical portion; 22, connector sealing ring; 24, connector mounting hole; 3, upper casing; 32, upper bush; 33, upper casing sealing gasket; 34, circumferential casting die; 35, ventilation slot; 4, horizontal spindle frame; 41, horizontal spindle sealing gasket; 43, Lower shaft sleeve; 5, inner casing; 51, circumferential bending part; 52, inner casing sealing gasket; 53, Upper shaft sleeve; 54, clutch shaft bearing; 55, air vent; 6, main support base; 61, annular groove; 62, main support base seal pad; 63, circumferential outer portion; 64, via; 71, side cover; 711, mount pad; 712, side cover O-ring seal; 72, inner casing cover; 722, bolt seal pad; 74, bearing; 81, front frame; 82, after-frame; 83, rotating bezel O-ring seal; 84, rotation axis; 9, protecting cover; 91, case ring; 911, embedding slot; 912, diversion trench.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the hermetically-sealed construction of a kind of spherical security monitoring device of the present invention is described further, understands the present invention's technical thought required for protection so that clearer.
As shown in Figure 1, 2, for the hermetically-sealed construction of a kind of spherical security monitoring device of the present invention, comprise protecting cover 9, the horizontal spindle frame 4 be arranged in protecting cover 9, inner casing 5, main support base 6, be positioned at the installation frame be connected below main support base 6 and with main support base 6.
Main support base 6 is connected on inner casing 5, and forms a cavity between main support base 6 and inner casing 5, so that place the device such as motor and circuit board.The junction that main support base 6 connects with inner casing 5 is provided with inner casing sealing gasket 52.Preferably, the peripheral edge of bottom place of this inner casing 5 is provided with the circumferential bending part 51 extended outwardly; Main support base 6 is provided with the circumferential outer portion 63 be arranged in circumferential bending part 51, and described inner casing sealing gasket 52 is between circumferential bending part 51 inwall and circumferential outer portion 63.Concrete, described inner casing sealing gasket 52 is between the inner roof wall and the outer roof in circumferential outer portion 63 of circumferential bending part 51.By adopting the design in circumferential bending part 51 and circumferential outer portion 63, can further improve the sealing between main support base 6 and inner casing 5, can prevent rainwater from entering from the gap between main support base 6 and inner casing 5.
Inner casing 5 is arranged on horizontal spindle frame 4 and also can rotates by relative level main shaft frame 4.Concrete, the upper end of inner casing 5 is provided with the Upper shaft sleeve 53 extended upward, clutch shaft bearing 54 is installed in Upper shaft sleeve 53, described horizontal spindle frame 4 is provided with the Lower shaft sleeve 43 towards downward-extension, the bearing of trend of this Lower shaft sleeve 43 is consistent with the bearing of trend of protecting cover 9, and described Lower shaft sleeve 43 is arranged in clutch shaft bearing 54.In use, by driving inner casing 5 to rotate, thus make inner casing 5 do to horizontally rotate around the axis of Lower shaft sleeve 43, and drive main support base 6, installation frame to move.
Certainly, inner casing 5 and horizontal spindle frame 4 can also adopt other connected modes, and as being arranged in Lower shaft sleeve 43 by clutch shaft bearing 54, Upper shaft sleeve 53 is arranged in clutch shaft bearing 54, can realize inner casing 5 relative level main shaft frame 4 equally and rotate.
The inwall of the upper end of protecting cover 9 is provided with circumferential casting die 34, and horizontal spindle frame 4 is connected on circumferential casting die 34, and the junction that horizontal spindle frame 4 connects with circumferential casting die 34 is provided with horizontal spindle sealing gasket 41.Preferably, described horizontal spindle sealing gasket 41 is arranged between the upper surface of horizontal spindle frame 4 and the lower surface of circumferential casting die 34.Described horizontal spindle frame 4 is arranged on circumferential casting die 34 by bolt, and the axis of this bolt is vertical with horizontal spindle frame 4 upper surface, and described horizontal spindle sealing gasket 41 is positioned at the inner side of bolt.By adopting said structure, the excellent sealing of the upper end of horizontal spindle frame 4 and protecting cover 9 can be realized, and horizontal spindle frame 4 is simple and convenient with the assembling of the upper end of protecting cover 9, is conducive to widely using.Described horizontal spindle frame 4 is provided with the first through hole, and this first through hole is communicated in the cavity that formed between main support base 6 and inner casing 5.
For the ease of the installation of spherical security monitoring device, sealing structure also comprises the support 1 be positioned at above protecting cover 9, and this support 1 is connected on protecting cover 9 by connector 2.Preferably, described connector 2 is provided with the cylindrical portion 21 extended upward, and described support 1 is provided with rack mounting apertures 11, and described cylindrical portion 21 is interted in rack mounting apertures 11, and is provided with connector sealing ring 22 between the inwall of rack mounting apertures 11 and cylindrical portion 21.Concrete, described support 1 is bolted on connector 2, the axis of this bolt and the axes normal of cylindrical portion 21.During use, by screwing bolts, thus connector sealing ring 22 is fastened between rack mounting apertures 11 and cylindrical portion 21, thus prevents rainwater from entering from the gap between support 1 and connector 2, improve its water resistance.The outside portion opening part of described support 1 is also bolted with waterproof chock plug 12.By adopting said structure, the dismounting of waterproof chock plug 12 can be convenient to.
The lower end of connector 2 is provided with connector mounting hole 24, and the upper end of protecting cover 9 is provided with the upper bush 32 extended upward, and described upper bush 32 interts in connector mounting hole 24, and is provided with upper casing sealing gasket 33 between the upper end of connector 2 and protecting cover 9.Concrete, described upper casing sealing gasket 33 is arranged between the diapire of connector 2 and the upper surface of protecting cover 9.Connector 2 is bolted on protecting cover 9, and this bolt extends to the inwall of protecting cover 9 upper end from the outer wall of connector 2, and the axis of this bolt is vertical with the diapire of connector 2, and described upper casing sealing gasket 33 is positioned at the inner side of bolt.During use, by screwing bolts, thus upper casing sealing gasket 33 is fastened between connector 2 and protecting cover 9, thus the sealing property both improving.
Certainly, described upper casing sealing gasket 33 can also be arranged between the inwall of connector mounting hole 24 and the outer wall of upper bush 32.
And by adopting the composite design of connector 2, support 1, protecting cover 9, protecting cover 9 and the excellent sealing of support 1 can be realized, also can expand its spatial accommodation.And, be also convenient to realize rapid-assembling, improve its packaging efficiency.
Described installation frame passes from the under shed of protecting cover 9, and the Wire channel in building being provided with video camera installation cavity in this installation frame, being communicated with video camera installation cavity; Main support base 6 is provided with the via 64 be communicated with Wire channel in building; The junction that the outside of described via 64 connects with installation frame is provided with main support base seal pad 62.Installation frame comprises the side cover 71 be connected on main support base 6, is positioned at the inner casing cover 72 of side cover 71 inside.The outer wall of described side cover 71 is cambered surface.Preferably, main support base 6 is provided with downward opening annular groove 61, described via 64 is positioned on the roof of annular groove 61, the upper end of described side cover 71, inner casing cover 72 is arranged in annular groove 61, and described main support base seal pad 62 is between the upper end and annular groove 61 of side cover 71, inner casing cover 72.Described side cover 71 is bolted on main support base 6, and the axis of bolt is vertical with main support base 6 inner roof wall.By adopting said structure, can further improve the sealing between main support base 6 and installation frame, preventing rainwater from entering from the gap between main support base 6 and installation frame, improve its water resistance.
Particularly, described Wire channel in building, between side cover 71 and inner casing cover 72, the junction that side cover 71 lower end connects with inner casing cover 72 is also provided with side cover O-ring seal 712.The inwall of side cover 71 is provided with the mount pad 711 extended inwardly, and inner casing cover 72 is provided with perforation, and described bolt is bored a hole and is screwed onto in mount pad 711.The junction that described perforation madial wall connects with bolt head is provided with bolt seal pad 722.
Installation frame also comprises the rotating bezel be arranged on inner casing cover 72.Described video camera installation cavity is arranged in rotating bezel, so that place video camera, and the lower end of rotating bezel passes from the under shed of side cover 71.Rotating bezel comprises front frame 81, after-frame 82, and the joint face that front frame 81 is connected with after-frame 82 is provided with rotating bezel O-ring seal 83.Concrete, front frame 81 is bolted on after-frame 82 by four, and on four end angles of described bolt distribution former frame 81, and rotating bezel O-ring seal 83 is provided with four ring pars convolutas, and this ring pars convoluta is corresponding with bolt respectively, and winding is in the inner side of the bolt corresponding with it.By adopting the design of rotating bezel O-ring seal 83, the sealing property improving rotating bezel can be convenient to, thus prevent rainwater from entering in the cavity of rotating bezel, to guarantee that camera stabilization runs, extending its serviceable life.
This inner casing cover 72 is provided with bearing seat, and the axis of this bearing seat is vertical with the bearing of trend of protecting cover 9, and bearing seat is also provided with bearing 74, and the both sides of described rotating bezel are respectively equipped with the rotation axis 84 extended outwardly, and this rotation axis 84 is arranged in bearing 74.By driving rotation axis 84, can be convenient to make the rotate axis of moving axis 84 of rotating bezel to make vertical rotation.Described rotation axis 84 is provided with linked hole, and described Wire channel in building is communicated with video camera installation cavity by linked hole.
The upper end of described protecting cover 9 is a upper casing 3, and described protecting cover 9 also comprises the case ring 91 be positioned at below upper casing 3.Connector 2, upper casing 3, case ring 91 form one and are clipped the ellipse at two ends, thus increase its aesthetic property.Gap is provided with between described upper casing 3 and case ring 91.Form a ventilation slot 35 between the inwall of described upper casing 3 and the outer wall of inner casing 5, the upper end of inner casing 5 is also provided with the air vent 55 be communicated with ventilation slot 35.The minimum point of described upper casing 3 is lower than the lower surface of inner casing sealing gasket 52.
Described installation frame passes from the under shed of case ring 91, the upper end of this case ring 91 forms an embedding slot 911, the lower end (that is to say the bottom of inner casing 5) of described circumferential bending part 51 is inlaid in embedding slot 911, by adopting said structure, the packaging efficiency improving case ring 91 and inner casing 5 can be convenient to.Form diversion trench 912 between the inwall of described case ring 91 and the outer wall of side cover 71, and form a flow-guiding mouth between the outer wall of the under shed of case ring 91 and side cover 71.By adopting said structure, can be convenient to enter to the rainwater diversion in gap between side cover 71 and case ring 91 in diversion trench 912, and flow out through flow-guiding mouth, thus prevent rainwater from entering to inside.
The present invention is by adopting the combination design of support 1, connector 2, upper casing 3, inner casing 5, main support base 6, side cover 71, inner casing cover 72, rotating bezel, case ring 91 and each O-ring seal, the integral seal structure formed can be convenient to, thus guarantee that it has good sealing property and water resistance.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the claims in the present invention.
Claims (10)
1. a hermetically-sealed construction for spherical security monitoring device, is characterized in that: comprise protecting cover, be positioned at the horizontal spindle frame of protecting cover, to be arranged on horizontal spindle frame and can relative level main shaft frame rotate inner casing, main support base, be positioned at the installation frame be connected below main support base and with main support base; Main support base is connected on inner casing, and forms a cavity between main support base and inner casing; The junction that main support base connects with inner casing is provided with inner casing sealing gasket; The lower end of installation frame passes from the under shed of protecting cover, and the Wire channel in building being provided with video camera installation cavity in this installation frame, being communicated with video camera installation cavity; Main support base is provided with the via be communicated with Wire channel in building; The junction that the outside of described via connects with installation frame is provided with main support base seal pad.
2. the hermetically-sealed construction of spherical security monitoring device as claimed in claim 1, is characterized in that: the peripheral edge of bottom place of inner casing is provided with the circumferential bending part extended outwardly; Main support base is provided with the circumferential outer portion be arranged in circumferential bending part, and described inner casing sealing gasket is between circumferential bending part inwall and circumferential outer portion.
3. the hermetically-sealed construction of spherical security monitoring device as claimed in claim 1, it is characterized in that: the upper end of inner casing is provided with the Upper shaft sleeve extended upward, be provided with clutch shaft bearing in Upper shaft sleeve, described horizontal spindle frame is provided with the Lower shaft sleeve towards downward-extension, and this Lower shaft sleeve is arranged in clutch shaft bearing; The bearing of trend of described Lower shaft sleeve is consistent with the bearing of trend of protecting cover.
4. the hermetically-sealed construction of spherical security monitoring device as claimed in claim 1, it is characterized in that: the inwall of the upper end of protecting cover is provided with circumferential casting die, horizontal spindle frame is connected on circumferential casting die, and the junction that horizontal spindle frame connects with circumferential casting die is provided with horizontal spindle sealing gasket.
5. the hermetically-sealed construction of spherical security monitoring device as claimed in claim 1, it is characterized in that: sealing structure also comprises the support be positioned at above protecting cover, this support is connected on protecting cover by connector; Described connector is provided with the cylindrical portion extended upward, and described support is provided with rack mounting apertures, and described cylindrical portion is interted in rack mounting apertures, and is provided with connector sealing ring between the inwall of rack mounting apertures and cylindrical portion.
6. the hermetically-sealed construction of spherical security monitoring device as claimed in claim 5, it is characterized in that: the lower end of connector is provided with connector mounting hole, the upper end of protecting cover is provided with the upper bush extended upward, described upper bush interts in connector mounting hole, and is provided with upper casing sealing gasket between connector and the upper end of protecting cover.
7. the hermetically-sealed construction of spherical security monitoring device as claimed in claim 1, is characterized in that: installation frame comprises the side cover be connected on main support base, is positioned at the inner casing cover of side cover inside, is arranged on the rotating bezel on inner casing cover; Described video camera installation cavity is arranged in rotating bezel, and the lower end of this rotating bezel passes from the under shed of side cover; Described Wire channel in building, between side cover and inner casing cover, the junction that side cover lower end connects with inner casing cover is also provided with side cover O-ring seal; Main support base is provided with downward opening annular groove, and described via is positioned on the roof of annular groove, and the upper end of described side cover, inner casing cover is arranged in annular groove, and main support base seal pad is between the upper end and annular groove of side cover, inner casing cover.
8. the hermetically-sealed construction of spherical security monitoring device as claimed in claim 7, it is characterized in that: this inner casing cover is provided with bearing seat, the axis of described bearing seat is vertical with the bearing of trend of protecting cover, bearing seat is also provided with bearing, the both sides of described rotating bezel are respectively equipped with the rotation axis extended outwardly, this rotation axis is arranged in bearing, and described rotation axis is provided with linked hole, and described Wire channel in building is communicated with video camera installation cavity by linked hole.
9. the hermetically-sealed construction of spherical security monitoring device as claimed in claim 7, it is characterized in that: described rotating bezel comprises front frame, after-frame, the joint face that front frame is connected with after-frame is provided with rotating bezel O-ring seal.
10. the hermetically-sealed construction of the spherical security monitoring device as described in any one of claim 1 to 9, is characterized in that: the upper end of described protecting cover is a upper casing, and protecting cover also comprises the case ring be positioned at below upper casing, is provided with gap between upper casing and case ring; The upper end of this case ring forms an embedding slot, and the bottom of described inner casing is inlaid in embedding slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210268219.0A CN102809875B (en) | 2012-07-30 | 2012-07-30 | Sealing structure of spherical security monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210268219.0A CN102809875B (en) | 2012-07-30 | 2012-07-30 | Sealing structure of spherical security monitoring device |
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| CN102809875A CN102809875A (en) | 2012-12-05 |
| CN102809875B true CN102809875B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210268219.0A Active CN102809875B (en) | 2012-07-30 | 2012-07-30 | Sealing structure of spherical security monitoring device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107979713B (en) * | 2016-10-24 | 2023-06-02 | 杭州海康威视数字技术股份有限公司 | Video camera |
| CN110971789B (en) * | 2018-09-28 | 2021-04-02 | 杭州海康威视数字技术股份有限公司 | Video camera |
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| CN200941654Y (en) * | 2006-08-04 | 2007-08-29 | 李鸿 | Universal ball for monitoring |
| CN101365058A (en) * | 2008-09-25 | 2009-02-11 | 浙江大华技术股份有限公司 | Water-proof spherical video camera |
| CN202068484U (en) * | 2011-05-17 | 2011-12-07 | 深圳市国祥安科技发展有限公司 | Infrared high speed ball machine |
| CN202837770U (en) * | 2012-07-30 | 2013-03-27 | 深圳丰泰达电子有限公司 | Sealed structure of spherical security protection monitoring apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10013780C1 (en) * | 2000-03-20 | 2001-05-23 | Hartig E Videor Tech | Video surveillance device has first separation plane between dome camera and circuit board device and second separation plane between security housing and carrier flange for circuit board device |
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- 2012-07-30 CN CN201210268219.0A patent/CN102809875B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200941654Y (en) * | 2006-08-04 | 2007-08-29 | 李鸿 | Universal ball for monitoring |
| CN101365058A (en) * | 2008-09-25 | 2009-02-11 | 浙江大华技术股份有限公司 | Water-proof spherical video camera |
| CN202068484U (en) * | 2011-05-17 | 2011-12-07 | 深圳市国祥安科技发展有限公司 | Infrared high speed ball machine |
| CN202837770U (en) * | 2012-07-30 | 2013-03-27 | 深圳丰泰达电子有限公司 | Sealed structure of spherical security protection monitoring apparatus |
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