CN208479780U - A kind of infrared explosion-proof video camera - Google Patents
A kind of infrared explosion-proof video camera Download PDFInfo
- Publication number
- CN208479780U CN208479780U CN201821112091.8U CN201821112091U CN208479780U CN 208479780 U CN208479780 U CN 208479780U CN 201821112091 U CN201821112091 U CN 201821112091U CN 208479780 U CN208479780 U CN 208479780U
- Authority
- CN
- China
- Prior art keywords
- video camera
- infrared
- proof
- bushing
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Studio Devices (AREA)
Abstract
The utility model discloses a kind of infrared explosion-proof video cameras.The infrared explosion-proof video camera includes: the video camera cavity (1) and infrared lamp cavity (2) being isolated from each other, airtight detection hole is provided on the video camera cavity, at the airtight detection hole, it is provided with the airtight hole plug (4) for airtightly blocking the airtight detection hole.The infrared explosion-proof video camera of the utility model avoids interference of the infrared light leakage to imaging, and can be avoided the intracorporal pressure piling of chamber using isolated point of chamber design.It, being capable of generation the problems such as after the assembly is completed, carrying out airtight detection to equipment, greatly reducing subsequent leak and haze in addition, by the way that airtight detection hole is arranged.
Description
Technical field
The utility model relates to camcorder technology fields, more particularly to a kind of infrared explosion-proof video camera.
Background technique
In current infrared explosion-proof vent machine, video camera and infrared lamp generally concentrate and are arranged in a cavity, infrared lamp leakage
Light is very big on picture quality influence, and serious situation will cause customer complaint.In addition, the air-tightness of current infrared explosion-proof vent machine is all
It is only to guarantee by parts machining precision and installation assembly fineness, the requirement to processing and assembly is very high.Even if very
In the case where high machining accuracy and assembly fineness, still there is certain probability to have airtight undesirable set in actual production process
Standby outflow.
For this purpose, having, the prior art will image machine cavity and infrared lamp chamber separates (referring to Fig. 1).But producing line is when assembly
The position between infrared lamp cavity and video camera cavity will be rule of thumb connected to by, which needing, carries out encapsulating processing.On the one hand, encapsulating matter
Amount is not easily controlled, and on the other hand, can not carry out airtight situation judgement to the equipment after being installed.
Fig. 2 is another technical solution in the prior art, which will image machine cavity and infrared lamp cavity is done
Divide chamber processing, but does not do and be isolated between video camera cavity and infrared lamp cavity.There are pressure when doing Exploding test
Overlapping causes the reference pressure of test excessive.Pressure according to regulation part water pressure generation in GB3836.2 is the 1.5 of reference pressure
Times, the inspection-free pressure of part is even as high as 4 times of reference pressure.To which, reference pressure is excessive or the pressure mistake of the water pressure test
Greatly, it needs the intensity requirement of the preceding cover glass of video camera very high, or even can not sometimes find and resist so big pressure
Glass.
Thus, it is desirable to have a kind of technical solution come overcome or at least mitigate in the drawbacks described above of the prior art at least one
It is a.
Utility model content
The purpose of this utility model is to provide a kind of infrared explosion-proof video cameras to overcome or at least mitigate the prior art
At least one of drawbacks described above.
To achieve the above object, the utility model provides a kind of infrared explosion-proof video camera, the infrared explosion-proof video camera packet
Include: the video camera cavity and infrared lamp cavity being isolated from each other are provided with airtight detection hole on the video camera cavity, in institute
It states at airtight detection hole, is provided with the airtight hole plug for airtightly blocking the airtight detection hole.
Preferably, thickening part is provided on the wall of the video camera cavity, the airtight detection hole runs through the thickening
Portion is provided with the first flame proof thread on the airtight hole plug, and in first flame proof thread and the airtight detection hole
Flame proof internal screw thread cooperates.
Preferably, the first sealing is provided between the thickening part and the plug expanded head of the airtight hole plug
Circle.
Preferably, ring is provided at one end of the plug expanded head towards the airtight hole plug of the thickening part
First sealing ring is pressed in the annular groove by connected in star, the plug expanded head.
Preferably, the video camera cavity and infrared lamp cavity are isolated from each other by isolation structure, the isolation structure
Including housing, bushing and across the infrared lamp cable of the bushing, in part between the bushing and the infrared lamp cable
Sealant is provided in length.
Preferably, the periphery of the bushing is provided with the second flame proof thread, the housing is fixedly attached to the camera shooting
Machine cavity body and/or infrared lamp cavity, and flame proof internal screw thread cooperates on second flame proof thread and the outer set.
Preferably, the second sealing ring is provided between the bushing expanded head of the bushing and the housing.
Preferably, intramedullary expansion annular groove is provided on the bushing, and the sealant fills the intramedullary expansion annular groove.
Preferably, the bushing is provided with radial contraction portion, the radial direction at its one end opposed with the sealant
Through-hole diameter at contraction flow region is less than the diameter of bore at remaining position of the bushing, is fixedly installed on the infrared lamp cable
Locating button, the inner face in the adjacent radial contraction portion in one end of the locating button, the other end of the locating button with it is described close
Sealing is adjacent.
Preferably, the periphery of the locating button is provided with one or more annular protrusions, the annular protrusion and the lining
The inner hole of set is cooperated with interference fit type.
Preferably, the axial length of the sealant is greater than the 1/2 of the axial length of the bushing.
Preferably, the infrared explosion-proof video camera is infrared explosion-proof vent machine.
The infrared explosion-proof video camera of the utility model is avoided infrared light leakage and is done to imaging using isolated point of chamber design
It disturbs, and can be avoided the intracorporal pressure piling of chamber.It, can be after the assembly is completed, to equipment in addition, by the way that airtight detection hole is arranged
The generation for the problems such as carrying out airtight detection, greatly reducing subsequent leak and haze.In the present invention, pressure piling is
Refer to: if the arrangement that a shell includes the cavity or inner body of several related connection is separated, there may be than normal
The bigger pressure of pressure and rate of pressure rise.
Detailed description of the invention
Fig. 1 is the schematic diagram of the infrared explosion-proof video camera of one kind in the prior art.
Fig. 2 is the schematic diagram of the infrared explosion-proof video camera of another kind in the prior art.
Fig. 3 is the schematic diagram according to the infrared explosion-proof video camera of an embodiment of the present invention.
Fig. 4 is the schematic diagram of the isolation structure of the video camera cavity and infrared lamp cavity in the utility model.
Fig. 5 is the schematic diagram of structure of the infrared explosion-proof video camera of the utility model at airtight hole plug.
Fig. 6 is the infrared explosion-proof video camera of the utility model at the isolation structure of video camera cavity and infrared lamp cavity
Schematic diagram.
Fig. 7 is the schematic diagram of bushing.
Appended drawing reference:
| 1 | Video camera cavity | 63 | Infrared lamp cable |
| 2 | Infrared lamp cavity | 64 | Sealant |
| 3 | Thickening part | 65 | Second sealing ring |
| 4 | Airtight hole plug | 66 | Locating button |
| 5 | First sealing ring | 621 | Intramedullary expansion annular groove |
| 6 | Isolation structure | 622 | Radial contraction portion |
| 41 | First flame proof thread | 623 | Bushing expanded head |
| 42 | Plug expanded head | 624 | Second flame proof thread |
| 61 | Housing | ||
| 62 | Bushing |
Specific embodiment
In the accompanying drawings, same or similar element is indicated using same or similar label or there is same or like function
Element.The embodiments of the present invention are described in detail with reference to the accompanying drawing.
Term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " perpendicular in the description of the present invention,
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is orientation based on the figure or position
Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as to scope of protection of the utility model
Limitation.
The explosion-proof video camera of the utility model is a kind of explosion-proof video camera for capableing of the anti-dust of flame proof and gas ignition type, energy
In enough environment for being applied to the environment containing explosive gas or vapour mixture and combustible dust.
Explosion-proof video camera generallys use flameproof enclosure.Flameproof enclosure is a kind of type of explosion proof construc tion of electrical equipment, shell energy
Enough explosive mixtures for bearing to enter interior of shell by any joint surface of shell or structure interval are in internal explosion without damaging
It is bad, and a kind of lighting for the external explosive gas atmosphere formed by, multiple gases or steam will not be caused.
The explosion-proof video camera of the utility model is, for example, infrared explosion-proof video camera, is also possible to the explosion-proof camera shooting of white light light filling
Machine.
Infrared explosion-proof video camera shown in Fig. 3 includes: the video camera cavity 1 and infrared lamp cavity 2 being isolated from each other.Institute
It states and is provided with airtight detection hole on video camera cavity, at the airtight detection hole, be provided with and airtightly block the airtight inspection
The airtight hole plug 4 of gaging hole.
The infrared explosion-proof video camera of the embodiment is avoided infrared light leakage and is done to imaging using isolated point of chamber design
It disturbs, and can be avoided the intracorporal pressure piling of chamber.It, can be after the assembly is completed, to equipment in addition, by the way that airtight detection hole is arranged
The generation for the problems such as carrying out airtight detection, greatly reducing subsequent leak and haze.
That is, infrared lamp cavity and video camera cavity are separated by infrared lamp cable-assembly (i.e. isolation structure 6)
It opens, entire thermal camera is made to be divided into two independent cavitys.In this way, when doing blast pressure test, infrared lamp cavity
There would not be pressure piling with video camera cavity, reduce the requirement of the intensity to preceding cover glass, while improve product
Economy.In other words, video camera cavity and infrared lamp cavity are separated, it is effective to reduce cavity internal pressure overlapping, it keeps away
The pressure for exempting from the hydraulic pressure of part is excessive and excessively high to the intensity requirement of preceding cover glass.Reduce cost, good economy performance.
On the other hand, after the assembly of entire video camera, by airtight detection hole using airtight test device to entirely taking the photograph
Camera carries out airtight detection, and the slip of detection device checks on and airtight undesirable equipment is forbidden to flow in client's hand, to control
It is subsequent to haze and generation the phenomenon that leak.In other words, video camera after the installation is completed, carries out airtight inspection to video camera
It surveys, the airtight yields of control equipment, controls subsequent haze and the phenomenon that leak.
As previously mentioned, the purposes of airtight detection hole is to detect the air-tightness of video camera cavity.After detection, use is airtight
Hole plug 4 blocks the airtight hole.
Airtight detection hole can be set in any appropriate location of video camera cavity 1, and be not limited to be arranged in shown position.
Airtight detection hole can be arranged directly on the wall of video camera cavity 1, for example, setting at a part on the wall of video camera cavity 1
The thicker position of integrally formed wall thickness is set, the airtight detection hole is set at the thicker position of the wall thickness.
In the embodiment shown in fig. 4, thickening part 3 be independently of video camera cavity 1 wall and molding individual member.Add
Thick portion 3 is soldered on the wall of video camera cavity 1 after independently molding.The airtight detection hole runs through the thickening part 3.It is described
Be provided with the first flame proof thread 41 on airtight hole plug 4, and on first flame proof thread 41 and the airtight detection hole every
Quick-fried internal screw thread cooperates.
In the present invention, flame proof thread can be using the screw thread of any appropriate specification.For example, according to specific flame proof
Or explosion-proof select being threadedly engaged for appropriate specification.Flame proof thread usually has relatively high machining accuracy, thread connection table
Face will reach flame proof requirement.For example, the small pin hole on flameproof joint, 5 are no more than in the range of 1 square centimeter, diameter
0.5mm is not to be exceeded, 1mm is not to be exceeded in depth.
It is cooperated by first flame proof thread 41 with the flame proof internal screw thread in the airtight detection hole, combustion is isolated
The gas or flame (preventing flame transmission) of burning.For example, the first flame proof thread 41 is fine thread, no less than 5 circles, length is not
Shorter than 8mm.Correspondingly, the flame proof internal screw thread in airtight detection hole is also fine thread, and no less than 5 circles, length is not shorter than 8mm.
In order to realize sealing, as shown in figure 4, the plug expanded head 42 in the thickening part 3 and the airtight hole plug 4
Between be provided with the first sealing ring 5.First sealing ring 5 is elastomer, and it is stifled to be pressed in the thickening part 3 and the airtight hole
Between first 4 plug expanded head 42.
Specifically, thickening part 3 the plug expanded head 42 towards the airtight hole plug 4 one end (i.e. in Fig. 4
Upper end) at, be provided with annular groove.The first sealing ring 5 is partly accommodated in annular groove in a free state, and part
It protrudes from except annular groove.Under tightening state, first sealing ring 5 is pressed on described by the plug expanded head 42
In annular groove.Under impaction state, the first sealing ring 5 can be pressed completely into the annular groove that (this is preferred
), can also still there be part to be exposed at except annular groove.
Video camera cavity 1 and infrared lamp cavity 2 can be kept apart using any structure appropriate.It is real shown in Fig. 3
It applies in example, video camera cavity 1 and infrared lamp cavity 2 are isolated from each other by isolation structure 6.Specifically, isolation structure 6 includes outer
Set 61, bushing 62 and the infrared lamp cable 63 across the bushing 62, between the bushing 62 and the infrared lamp cable 63
It is provided with sealant 64.It is thus achieved that the isolation of video camera cavity 1 and infrared lamp cavity 2, and supply power to infrared lamp
In cavity.More specifically, being only provided with sealant 64 on partial-length.
The periphery of the bushing 62 is provided with the second flame proof thread 624, the housing 61 is fixedly attached to the camera shooting
Machine cavity body 1 and infrared lamp cavity 2, and second flame proof thread 624 and the flame proof internal screw thread phase interworking on the housing 61
It closes.It is cooperated by second flame proof thread 624 with the flame proof internal screw thread on the housing 61, in video camera cavity 1
The gas or flame (preventing flame transmission) of burning are isolated between infrared lamp cavity 2.Specifically, the second flame proof thread 624
For fine thread, no less than 5 circles, length is not shorter than 8mm.Correspondingly, the flame proof internal screw thread on housing 61 is also fine thread,
No less than 5 circles, length are not shorter than 8mm.
In order to be sealed, second is provided between the bushing expanded head 623 and the housing 61 of the bushing 62
Sealing ring 65.
As shown in figure 5, one end (i.e. upper end in Fig. 5) towards housing 61 of the bushing expanded head 623 in bushing 62
Place, is provided with second annular groove.The second sealing ring 65 is partly accommodated in second annular groove in a free state, and portion
Divide and protrudes from except second annular groove.In the state that bushing 62 screws, the bushing expanded head 623 of the bushing 62 and outer
61 cooperation of set, second sealing ring 65 is pressed in the second annular groove.Under impaction state, the second sealing ring 65
It can be pressed completely into the second annular groove (this is preferred), can also still have part to be exposed at the second annular
Except groove.
Referring to figs. 5 and 6, intramedullary expansion annular groove 621 is provided on bushing 62, and the sealant 64 is filled in described
Expand annular groove 621.To realize the sealing on the inside of bushing.Thus, it is possible to realize the good axially position of sealant 64, furthermore
It can prevent sealant from falling off, and increase gluing area or glue envelope length, further improve glue and seal effect.
More specifically, bushing 62 is provided with radial contraction portion 622 at its one end opposed with the sealant 64.It is described
Through-hole diameter at radial contraction portion 622 is less than the diameter of bore at described remaining position of bushing 62, the infrared lamp cable 63
On be fixedly installed locating button 631, the inner face in the adjacent radial contraction portion 622 in one end of the locating button 631 is described fixed
The other end and the sealant 64 of position button 631 are adjacent.Realize infrared lamp cable 63 in length direction before encapsulating as a result,
On limit.
The periphery of locating button 631 is provided with one or more annular protrusions 6311, the annular protrusion 6311 and the lining
The inner hole of set 62 is cooperated with interference fit type.Glue when encapsulating is avoided to flow at non-encapsulating position as a result,.
In order to preferably realize that glue seals effect, it is preferable that the axial length of the sealant 64 is greater than the bushing 62
The 1/2 of axial length.In this way, the axial length of bushing can be made full use of, in the case where identical liner sleeve length, can be arranged
Biggish sealant length.On the other hand, in the case where sealant length needs to meet minimum qualifications, can to serve as a contrast
The axial length of set is smaller, to be conducive to the densification of whole device.
Preferably, the infrared explosion-proof video camera is infrared explosion-proof vent machine.It but may be infrared explosion-proof ball machine etc..
Finally it is noted that above embodiments are only to illustrate the technical solution of the utility model, rather than it is limited
System.Those skilled in the art should understand that: it is possible to modify the technical solutions described in the foregoing embodiments, or
Person's equivalent replacement of some of the technical features；These are modified or replaceed, and do not make the essence of corresponding technical solution de-
Spirit and scope from various embodiments of the utility model technical solution.
Claims (11)
1. a kind of infrared explosion-proof video camera characterized by comprising the video camera cavity (1) being isolated from each other and infrared lamp chamber
Body (2) is provided with airtight detection hole on the video camera cavity, at the airtight detection hole, is provided with and airtightly blocks
The airtight hole plug (4) of the airtight detection hole.
2. infrared explosion-proof video camera as described in claim 1, which is characterized in that set on the wall of the video camera cavity (1)
Be equipped with thickening part (3), the airtight detection hole runs through the thickening part (3), be provided on the airtight hole plug (4) first every
Quick-fried screw thread (41), and the flame proof internal screw thread in first flame proof thread (41) and the airtight detection hole cooperates.
3. infrared explosion-proof video camera as claimed in claim 2, which is characterized in that in the thickening part (3) and the airtight hole
The first sealing ring (5) are provided between the plug expanded head (42) of plug (4).
4. infrared explosion-proof video camera as claimed in claim 3, which is characterized in that in the thickening part (3) towards the gas
It is provided with annular groove at one end of the plug expanded head (42) of close hole plug (4), the plug expanded head (42) is by institute
The first sealing ring (5) is stated to be pressed in the annular groove.
5. such as infrared explosion-proof video camera of any of claims 1-4, which is characterized in that the video camera cavity (1)
It is isolated from each other with infrared lamp cavity (2) by isolation structure (6), the isolation structure (6) includes housing (61), bushing (62)
With pass through the bushing (62) infrared lamp cable (63), in portion between the bushing (62) and the infrared lamp cable (63)
Sealant (64) are provided in point length.
6. infrared explosion-proof video camera as claimed in claim 5, which is characterized in that the periphery of the bushing (62) is provided with the
Two flame proof threads (624), the housing (61) are fixedly attached to the video camera cavity (1) and/or infrared lamp cavity (2), and
Flame proof internal screw thread on second flame proof thread (624) and the housing (61) cooperates.
7. infrared explosion-proof video camera as claimed in claim 5, which is characterized in that in the bushing expanded head of the bushing (62)
(623) it is provided between the housing (61) the second sealing ring (65).
8. infrared explosion-proof video camera as claimed in claim 5, which is characterized in that be provided with intramedullary expansion ring on the bushing (62)
Shape slot (621), and the sealant (64) fills the intramedullary expansion annular groove (621).
9. infrared explosion-proof video camera as claimed in claim 5, which is characterized in that the bushing (62) is in itself and the sealant
(64) it is provided at opposed one end radial contraction portion (622), the through-hole diameter at the radial contraction portion (622) is less than described
Diameter of bore at bushing (62) remaining position is fixedly installed locating button (631) on the infrared lamp cable (63), described fixed
The inner face of the adjacent radial contraction portion (622) in one end of position button (631), the other end of the locating button (631) with it is described
Sealant (64) is adjacent.
10. infrared explosion-proof video camera as claimed in claim 9, which is characterized in that the periphery of the locating button (631) is provided with
One or more annular protrusions (6311), the inner hole of the annular protrusion (6311) and the bushing (62) is with interference fit type
It cooperates.
11. infrared explosion-proof video camera as claimed in claim 5, which is characterized in that the axial length of the sealant (64) is big
In the 1/2 of the axial length of the bushing (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821112091.8U CN208479780U (en) | 2018-07-13 | 2018-07-13 | A kind of infrared explosion-proof video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821112091.8U CN208479780U (en) | 2018-07-13 | 2018-07-13 | A kind of infrared explosion-proof video camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208479780U true CN208479780U (en) | 2019-02-05 |
Family
ID=65210668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821112091.8U Active CN208479780U (en) | 2018-07-13 | 2018-07-13 | A kind of infrared explosion-proof video camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208479780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094703A (en) * | 2019-05-14 | 2019-08-06 | 海洋王照明科技股份有限公司 | Explosion-proof luminaire and its cable introduce structure |
| CN112097901A (en) * | 2020-03-31 | 2020-12-18 | 科大国盾量子技术股份有限公司 | Refrigeration structure and single photon detection device |
-
2018
- 2018-07-13 CN CN201821112091.8U patent/CN208479780U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094703A (en) * | 2019-05-14 | 2019-08-06 | 海洋王照明科技股份有限公司 | Explosion-proof luminaire and its cable introduce structure |
| CN112097901A (en) * | 2020-03-31 | 2020-12-18 | 科大国盾量子技术股份有限公司 | Refrigeration structure and single photon detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208479780U (en) | A kind of infrared explosion-proof video camera | |
| US4938314A (en) | Plastic oil pan | |
| US4970898A (en) | Pressure transmitter with flame isolating plug | |
| DE3469584D1 (en) | Lead-in for a conduit, as cable, pipe or the like through a wall opening | |
| CN110425281A (en) | For the sealing arrangement structure of reducer output shaft and the retarder with sealing arrangement structure | |
| CN105757626A (en) | Anti-explosion lighting system and anti-explosion illumination sensor | |
| WO2022022178A1 (en) | E-liquid filling structure and assembling and e-liquid filling method | |
| GB1322495A (en) | Exhaust passages in internal combustion engines | |
| ES247812U (en) | Quick opening valve. | |
| EP0897073A3 (en) | Gas spring with filler block | |
| US4844037A (en) | Precombustion chamber construction for internal combustion engine | |
| CN208669393U (en) | A kind of sealing structure, sectional type exhaust tube and engine assembly | |
| ATE25139T1 (en) | COCK. | |
| CN209642796U (en) | Explosion-proof infrared high definition integrated video camera | |
| CN210831989U (en) | Explosion-proof ultralow nitrogen combustor | |
| CN218564389U (en) | Sealing structure for casing and main shaft of high-pressure centrifugal fan | |
| CN204442513U (en) | A kind of novel camera with explosion-resistant enclosure | |
| CN113566988B (en) | Manufacturing process of multi-protection temperature sensor | |
| CN207162255U (en) | A kind of unmanned remotely controlled submersible vehicle lighting module | |
| CN205479373U (en) | Admission valve device and device of getting fire | |
| CN205304146U (en) | Explosion -proof junction box of high strength | |
| JPH03244801A (en) | Expanding type fuse safety device for accumulator | |
| CN218913853U (en) | Manual exhaust valve | |
| CN102798090B (en) | Air pressure balancing device and explosion-proof lamp | |
| CN220120579U (en) | Water pressure detection tool for thin-wall large-opening structure spray pipe shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |