Public safety monitoring camera

Abstract

The utility model discloses a public safety monitoring camera which comprises a camera body, one end of the camera body is provided with a lens, two sides of the lens are respectively provided with a winding chamber and an unwinding chamber, the winding chamber is internally provided with a driving unit and a winding roller, the driving unit drives the winding roller to rotate, the unwinding chamber is internally and rotatably connected with an unwinding roller, and the unwinding roller is rotatably connected with the driving unit. A shielding film is wound on the unwinding roller, and one end of the shielding film is wound on the winding roller after shielding the lens; according to the public safety monitoring camera, the shielding film is adopted, rain, snow or dust is shielded, rain, snow or dust is prevented from being attached to the lens in rainy and snowy days, the driving unit is matched to drive the winding roller to rotate, the shielding film attached with rain, snow or dust is wound, meanwhile, the clean shielding film on the unwinding roller is moved to the front of the lens, and the lens is cleaned. The automatic switching of the shielding film is realized, so that the camera can be always kept clear without shielding.

Description

Technical Field

[0001] This utility model relates to surveillance technology, specifically a public safety surveillance camera. Background Technology

[0002] Surveillance cameras are semiconductor imaging devices with advantages such as high sensitivity, resistance to strong light, low distortion, small size, long lifespan, and vibration resistance. In surveillance camera security systems, image generation currently mainly comes from CCD cameras, with public security surveillance cameras typically installed outdoors.

[0003] In practical use, existing surveillance cameras still have some shortcomings. The most obvious one is that when the camera encounters rain or snow, rain and snow will stick to the camera glass, affecting the normal shooting of the camera. Either you wait for the weather to improve and the rain and snow to dry naturally, but the image clarity of the camera will be affected, or you manually remove the rain and snow, but this is more troublesome and brings inconvenience to the use of surveillance cameras. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a public safety monitoring camera that can automatically switch the shielding film when encountering rain, snow, or dust adhering to the shielding film, so that the camera's field of view remains clear and unobstructed at all times.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a public security monitoring camera, including a camera body, a lens at one end of the camera body, a winding chamber and an unwinding chamber respectively on both sides of the lens, a drive unit and a winding roller in the winding chamber, the drive unit driving the winding roller to rotate, an unwinding roller rotatably connected in the unwinding chamber, a shielding film wound on the unwinding roller, one end of the shielding film shielding the lens and then wound around the winding roller.

[0006] Preferably, the drive unit includes a motor and a gearbox, and the motor is connected to one end of the take-up roller via the gearbox.

[0007] Preferably, a support pillar is provided below the camera body.

[0008] Preferably, a baffle is provided above the lens, and the baffle extends toward the side away from the support.

[0009] Preferably, baffles are provided on both sides of the lens, and the baffles extend toward the side away from the support.

[0010] Preferably, both the winding chamber and the unwinding chamber are covered with protective plates, one end of which is hinged to the camera body, and the other end of which is provided with a buckle.

[0011] Preferably, both the unwinding chamber and the winding chamber have through holes on the side facing the baffle. The through holes are engaged with snap-fit ​​devices and are used to guide the shielding film through and turn.

[0012] Preferably, guide grooves are provided above and below the lens, and the guide grooves are used to block the gap between the lens and the edge of the shielding film.

[0013] In summary, this utility model achieves the following technical effects:

[0014] This utility model of a public safety monitoring camera uses a shielding film to block rain, snow, or dust in rainy or snowy weather, preventing them from adhering to the lens. In addition, the drive unit drives the take-up roller to rotate, rolling up the shielding film with rain, snow, or dust attached, while moving the clean shielding film on the unwind roller to the front of the lens, realizing automatic switching of the shielding film so that the camera can always remain clear and unobstructed. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the public security surveillance camera of this utility model;

[0016] Figure 2 This is a structural schematic diagram of the public security surveillance camera of this utility model;

[0017] Figure 3 This is a side view of the public safety monitoring camera of this utility model;

[0018] Figure 4 This is a side view of the public safety monitoring camera of this utility model;

[0019] Explanation of reference numerals in the accompanying drawings: 1. Support column; 2. Camera body; 3. Baffle; 4. Protective plate; 5. Lens; 6. Baffle; 7. Guide groove; 8. Masking film; 10. Rewind chamber; 11. Motor; 12. Gearbox; 13. Rewind roller; 15. Through hole; 16. Unwind chamber; 17. Unwind roller. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] Example 1:

[0027] like Figure 1As shown in Figure 4, a public safety monitoring camera includes a camera body 2. One end of the camera body 2 is provided with a lens 5. A winding chamber 10 and an unwinding chamber 16 are respectively provided on both sides of the lens 5. A drive unit and a winding roller 13 are provided in the winding chamber 10. The drive unit drives the winding roller 13 to rotate. An unwinding roller 17 is rotatably connected in the unwinding chamber 16. A shielding film 8 is wound on the unwinding roller 17. One end of the shielding film 8 shields the lens 5 and then wraps around the winding roller 13.

[0028] The public security monitoring camera of this utility model uses a shielding film 8 to shield against rain, snow, or dust in rainy or snowy weather, preventing rain, snow, or dust from adhering to the lens 5. In addition, the drive unit drives the take-up roller 13 to rotate, which rolls up the shielding film 8 with rain, snow, or dust attached. At the same time, the clean shielding film 8 on the unwind roller 17 is moved to the front of the lens 5, realizing the automatic switching of the shielding film 8, so that the camera can always remain clear and unobstructed.

[0029] The drive unit includes a motor 11 and a gearbox 12, and the motor 11 is connected to one end of the take-up roller 13 via the gearbox 12.

[0030] A support column 1 is provided below the camera body 2.

[0031] A baffle 3 is provided above the lens 5, and the baffle 3 extends toward the side away from the support 1. The baffle 3 can block the sunlight above and some of the rain, snow and dust falling from above, so as to avoid rain, snow and dust falling directly onto the shielding film 8 as much as possible.

[0032] Both sides of the lens 5 are provided with baffles 6, which extend toward the side away from the support 1. The baffles 6 can block sunlight from both sides and some rain, snow and dust blown in from both sides, so as to avoid rain, snow and dust falling directly onto the shielding film 8 as much as possible.

[0033] Both the take-up chamber 10 and the unwind chamber 16 are covered with a protective plate 4. One end of the protective plate 4 is hinged to the camera body 2, and the other end of the protective plate 4 is provided with a buckle. Both the unwind chamber 16 and the take-up chamber 10 have through holes 15 on the side facing the baffle 6. The through holes 15 are engaged with the buckles. The through holes 15 are used to guide the shielding film 8 through and turn. The through holes 15 and the buckles can make the protective plate 4 cover the unwind chamber 16 and the take-up chamber 10 to prevent rain, snow and dust from directly invading and contaminating the shielding film 8.

[0034] The lens 5 is provided with guide grooves 7 above and below it. The guide grooves 7 are used to block the gap between the lens 5 and the edge of the shielding film 8. The guide grooves 7 can block the gap between the lens 5 and the edge of the shielding film 8, preventing dust, rain and snow from entering through the gap. At the same time, the guide grooves 7 can guide the edge of the shielding film 8, preventing the shielding film 8 from folding due to strong winds or other external forces, thus preventing the lens 5 from being exposed.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A public safety surveillance camera, characterized by, Including camera body, one end of the camera body is provided with a lens, both sides of the lens are respectively provided with a winding chamber and a unwinding chamber, a driving unit and a winding roller are arranged in the winding chamber, the driving unit drives the winding roller to rotate, a unwinding roller is rotatably connected in the unwinding chamber, the unwinding roller is wound with a shielding film, one end of the shielding film is shielded behind the lens and wound on the winding roller.

2. A public safety surveillance camera according to claim 1, wherein, The driving unit comprises a motor and a gear box, and the motor is in transmission connection with one end of the winding roller through the gear box.

3. A public safety surveillance camera according to claim 1, wherein, A support column is arranged below the camera body.

4. A public safety surveillance camera according to claim 3, wherein, A baffle is arranged above the lens, and the baffle extends away from the support column.

5. A public safety surveillance camera according to claim 1, wherein, A baffle is arranged on both sides of the lens, and the baffle extends away from the support column.

6. A public safety surveillance camera according to claim 5, wherein, A guard plate is arranged on both the winding chamber and the unwinding chamber, one end of the guard plate is hingedly connected with the camera body, and the other end of the guard plate is provided with a buckle.

7. A public safety surveillance camera according to claim 6, wherein, A through hole is arranged on the side of the unwinding chamber and the winding chamber, which is away from the baffle, the through hole is in clamping cooperation with the buckle, and the through hole is used for guiding the shielding film to pass through and turn.

8. The public safety surveillance camera of claim 1, wherein, A guide groove is arranged above and below the lens, and the guide groove is used for shielding the gap between the lens and the edge of the shielding film.

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