CN213880004U - Positive pressure type explosion-proof camera - Google Patents
Positive pressure type explosion-proof camera Download PDFInfo
- Publication number
- CN213880004U CN213880004U CN202120162816.XU CN202120162816U CN213880004U CN 213880004 U CN213880004 U CN 213880004U CN 202120162816 U CN202120162816 U CN 202120162816U CN 213880004 U CN213880004 U CN 213880004U
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- CN
- China
- Prior art keywords
- shell
- air
- air curtain
- camera
- outlet
- 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.)
- Expired - Fee Related
Links
- 239000011521 glass Substances 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims description 9
- 239000002360 explosive Substances 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 14
- 239000011261 inert gas Substances 0.000 description 4
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Accessories Of Cameras (AREA)
Abstract
The utility model discloses a positive pressure type explosion-proof camera, which comprises a base, a shell, a camera body, a glass plate, a plug board and an air curtain head; the shell is fixed at the upper end of the base; the camera body is fixed in the shell; the glass plate is fixed at the front end of the shell; the inserting plate can be fixed at the rear end of the shell in a vertically sliding manner; an air inlet pipe is arranged at the rear section of the right side wall of the shell; an air outlet and an air curtain outlet are formed in the front section of the upper end face of the shell; the air outlet is communicated with the interior of the shell. The utility model has the advantages that: the utility model keeps the air pressure in the shell of the camera higher than the external air pressure by continuously feeding fresh air into the shell of the camera, thereby preventing the external inflammable and explosive gas from entering and further preventing the inflammable and explosive gas from entering the interior of the camera and igniting and then igniting the inflammable and explosive gas; and can prevent the front end of the glass plate from condensing water vapor, and ensure that the camera can shoot clear pictures.
Description
Technical Field
The utility model relates to a camera field especially relates to a positive pressure type explosion-proof camera.
Background
The monitoring equipment in flammable and explosive places needs to use a positive pressure explosion-proof camera to prevent flammable and explosive gases from entering the camera to ignite and then detonate the flammable and explosive gases, so that production safety accidents are caused.
In the existing positive pressure type explosion-proof camera, high-pressure inert gas is filled in a shell of the camera in advance for preventing external gas from entering. However, after a long time of use, the high-pressure inert gas may leak, which results in insufficient air pressure in the housing of the camera, and the inert gas needs to be supplemented periodically, which increases the labor intensity of personnel, and if the inert gas is not supplemented timely, it is easy to cause danger.
Therefore the utility model provides a positive pressure type explosion-proof camera through the continuous fresh air of sending into in the shell to the camera, keeps the shell internal gas pressure of camera to be higher than external atmospheric pressure, prevents external inflammable and explosive gas's entering, and then prevents inflammable and explosive gas and gets into the inside back of igniting of camera and detonate inflammable and explosive gas.
Disclosure of Invention
In order to solve the problems in the background art, the utility model discloses a positive pressure type explosion-proof camera, which comprises a base, a shell, a camera body, a glass plate, a plug board and an air curtain head; the shell is fixed at the upper end of the base; the camera body is fixed in the shell; the glass plate is fixed at the front end of the shell; the inserting plate can be fixed at the rear end of the shell in a vertically sliding manner; an air inlet pipe is arranged at the rear section of the right side wall of the shell; an air outlet and an air curtain outlet are formed in the front section of the upper end face of the shell; the air outlet is communicated with the interior of the shell; the air curtain outlet is arranged at the front end of the glass plate; one end of the air curtain head is communicated with the air outlet through an air curtain connecting pipe, and the other end of the air curtain head is communicated with the air curtain outlet; the lower end of the inserting plate is provided with two upper semicircular grooves; two lower semicircular grooves are formed in the top end of the rear side wall of the shell; the two upper semicircular grooves and the two lower semicircular grooves respectively correspond to each other to form two whole circles which are respectively used for clamping the signal line and the power line.
The lower end of the base is provided with a flange.
The air curtain connecting pipe is provided with a check valve for preventing external air from entering the shell through the air curtain outlet, the air curtain head, the air curtain connecting pipe and the air outlet.
The upper semicircular groove is sleeved with an elastic sleeve; the lower semicircular groove is sleeved with an elastic sleeve; a pressing sheet is arranged at the upper end of the shell; the pressing sheet is rotatably fixed at the upper end of the shell; when the pressing piece rotates to be parallel to the length direction of the shell, the upper end of the inserting plate can be pressed.
The elastic sleeve is a rubber elastic sleeve.
The utility model has the advantages that: the utility model keeps the air pressure in the shell of the camera higher than the external air pressure by continuously feeding fresh air into the shell of the camera, thereby preventing the external inflammable and explosive gas from entering and further preventing the inflammable and explosive gas from entering the interior of the camera and igniting and then igniting the inflammable and explosive gas; the front end of the glass plate can be prevented from condensing water vapor, and a camera can shoot clear pictures; the signal wire and the power wire are respectively clamped by the elastic sleeves, so that the tightness of the signal wire, the power wire and the shell can be improved, and the protective sleeves of the signal wire and the power wire can be protected from being damaged.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention in another direction.
Fig. 3 is a front view of the present invention.
Fig. 4 is a rear view of the present invention.
Fig. 5 is an exploded view of the present invention.
Fig. 6 is a schematic view of the internal structure of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the invention can be more easily understood by those skilled in the art, thereby making the scope of the invention more clearly defined.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1-6, a positive pressure type explosion-proof camera comprises a base 1, a shell 2, a camera body 3, a glass plate 4, a plug board 5 and an air curtain head 6; the shell 2 is fixed at the upper end of the base 1; the camera body 3 is fixed in the shell 2; the glass plate 4 is fixed at the front end of the shell 2; the inserting plate 5 can be fixed at the rear end of the shell 2 in a vertically sliding manner; an air inlet pipe 201 is arranged at the rear section of the right side wall of the shell 2; an air outlet 202 and an air curtain outlet 203 are arranged at the front section of the upper end face of the shell 2; the air outlet 202 is communicated with the interior of the shell 2; the air curtain outlet 203 is arranged at the front end of the glass plate 4; one end of the air curtain head 6 is communicated with the air outlet 202 through an air curtain connecting pipe 601, and the other end of the air curtain head is communicated with the air curtain outlet 203; the lower end of the inserting plate 5 is provided with two upper semicircular grooves 501; two lower semicircular grooves 204 are formed in the top end of the rear side wall of the shell 2; the two upper semicircular grooves 501 and the two lower semicircular grooves 204 respectively form two full circles in a one-to-one correspondence manner, and are respectively used for clamping the signal lines 301 and the power lines 302.
The use method and the working principle are as follows: when the utility model is used, the air inlet pipe 201 is communicated with the air supply pipe, so that fresh air continuously enters the shell 2, the air pressure in the shell of the camera is kept higher than the external air pressure, and the external inflammable and explosive gas is prevented from entering; after the fresh air enters the shell 2, an air curtain is formed through the air outlet 202, the air curtain connecting pipe 601, the air curtain head 6 and the air curtain outlet 203 and is blown to the front end of the glass plate 4, so that water vapor condensation at the front end of the glass plate 4 can be prevented, and a clear picture can be shot by a camera.
Therefore, the utility model keeps the air pressure in the shell of the camera higher than the external air pressure by continuously feeding fresh air into the shell of the camera, thereby preventing the external inflammable and explosive gas from entering, and further preventing the inflammable and explosive gas from entering the interior of the camera and igniting and then detonating the inflammable and explosive gas; and can prevent 4 front ends of glass sheet condensation steam, guarantee that the camera can shoot clear picture.
The lower end of the base 1 is provided with a flange plate 101.
Thus, the utility model discloses can be through the convenient cloud bench that is fixed in of ring flange 101, it is very convenient to connect.
The air curtain connecting pipe 601 is provided with a check valve 7 for preventing external air from entering the housing 2 through the air curtain outlet 203, the air curtain head 6, the air curtain connecting pipe 601 and the air outlet 202.
The explosion-proof performance of the utility model can be further improved.
The upper semicircular groove 501 is sleeved with an elastic sleeve 8; the lower semicircular groove 204 is sleeved with an elastic sleeve 8; a pressing sheet 9 is arranged at the upper end of the shell 2; the pressing sheet 9 is rotatably fixed at the upper end of the shell 2; when the pressing piece 9 is rotated to be parallel to the length direction of the housing 2, the upper end of the insert plate 5 can be pressed.
In this way, the signal wire 301 and the power wire 302 are respectively clamped by the elastic sleeve 8, which not only increases the sealing performance of the signal wire 301 and the power wire 302 and the housing 2, but also protects the protective sleeve of the signal wire 301 and the power wire 302 from being damaged.
The elastic sleeve 8 is a rubber elastic sleeve.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any slight modifications, equivalent replacements and improvements made by the technical spirit of the present invention to the above embodiments should be included in the technical solution of the present invention.
Claims (5)
1. A positive pressure type explosion-proof camera is characterized by comprising a base, a shell, a camera body, a glass plate, a plug board and an air curtain head; the shell is fixed at the upper end of the base; the camera body is fixed in the shell; the glass plate is fixed at the front end of the shell; the inserting plate can be fixed at the rear end of the shell in a vertically sliding manner; an air inlet pipe is arranged at the rear section of the right side wall of the shell; an air outlet and an air curtain outlet are formed in the front section of the upper end face of the shell; the air outlet is communicated with the interior of the shell; the air curtain outlet is arranged at the front end of the glass plate; one end of the air curtain head is communicated with the air outlet through an air curtain connecting pipe, and the other end of the air curtain head is communicated with the air curtain outlet; the lower end of the inserting plate is provided with two upper semicircular grooves; two lower semicircular grooves are formed in the top end of the rear side wall of the shell; the two upper semicircular grooves and the two lower semicircular grooves respectively correspond to each other to form two whole circles which are respectively used for clamping the signal line and the power line.
2. A positive pressure type explosion-proof camera according to claim 1, wherein the lower end of the base is a flange.
3. The positive pressure type explosion-proof camera as claimed in claim 1, wherein the air curtain connection pipe is provided with a check valve for preventing external air from entering the housing through the air curtain outlet, the air curtain head, the air curtain connection pipe and the air outlet.
4. The positive pressure type explosion-proof camera as claimed in claim 1, wherein the upper semicircular groove is sleeved with an elastic sleeve; the lower semicircular groove is sleeved with an elastic sleeve; a pressing sheet is arranged at the upper end of the shell; the pressing sheet is rotatably fixed at the upper end of the shell; when the pressing piece rotates to be parallel to the length direction of the shell, the upper end of the inserting plate can be pressed.
5. The positive pressure type explosion-proof camera as claimed in claim 4, wherein the elastic sleeve is a rubber elastic sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120162816.XU CN213880004U (en) | 2021-01-21 | 2021-01-21 | Positive pressure type explosion-proof camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120162816.XU CN213880004U (en) | 2021-01-21 | 2021-01-21 | Positive pressure type explosion-proof camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213880004U true CN213880004U (en) | 2021-08-03 |
Family
ID=77046025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120162816.XU Expired - Fee Related CN213880004U (en) | 2021-01-21 | 2021-01-21 | Positive pressure type explosion-proof camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213880004U (en) |
-
2021
- 2021-01-21 CN CN202120162816.XU patent/CN213880004U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210803 |