CN220210523U

CN220210523U - Dustproof mechanism

Info

Publication number: CN220210523U
Application number: CN202321400813.0U
Authority: CN
Inventors: 张继平
Original assignee: Weihai United Image Co ltd
Current assignee: Weihai United Image Co ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-12-19
Anticipated expiration: 2033-06-05

Abstract

The utility model discloses a dustproof mechanism which comprises a shell, wherein a fixed plate is arranged in the shell, a through hole is formed in the upper end face of the fixed plate, a rotating rod is arranged in the through hole, and a limiting ring and a first gear which are respectively positioned above and below the fixed plate are fixedly sleeved on the outer side wall of the rotating rod. During the use, the camera module can rotate at the in-process of operation, sealed pad prevents that outside dust and rainwater from entering into the inside of shell this moment, and through starting the fan for in the dust screen lets in two ventilation pipes behind the air filtration of outside, make a plurality of dust blowing pipes blow off the dust of camera module and shell junction (gap), further prevent in the dust gets into the shell, through starting the second motor, make the scraper blade rotate, be convenient for clear away spot and dust on the camera module mirror surface, thereby effectively prevent the inside of outside dust entering camera, prolong its life.

Description

Dustproof mechanism

Technical Field

The utility model relates to the field of dust prevention of camera modules, in particular to a dust prevention mechanism.

Background

The camera module, hereinafter abbreviated as ccm, is an electronic device of which image capturing is crucial, light collected by an object through a lens (lens) converts an optical signal into an electrical signal through a cmos or a ccd integrated circuit, then converts the electrical signal into a digital image signal through an internal image processor (isp), outputs the digital image signal to a digital signal processor (dsp) for processing, and converts the digital image signal into standard image signals in formats of grb, yuv and the like, and the conventional camera module generally comprises a supporting frame, an image sensor chip and a telescopic optical lens.

At present, most of camera modules can rotate an adjusting angle, and because the existing part of camera modules are installed inside a protective shell, gaps exist between the joints of the camera modules and a shell, and the joints of the camera modules are sealed by using sealing gaskets, part of dust still enters the camera modules due to accumulation of dust, so that normal operation of internal equipment is affected.

When the existing camera module is used for a long time, dust in gaps between the camera module and the shell cannot be cleaned, so that part of dust enters the camera module, damage is brought to the camera module, and the service life of the camera module is influenced.

Disclosure of Invention

The utility model aims to provide a dustproof mechanism which has the characteristics of effectively preventing external dust from entering the inside of a camera and prolonging the service life of the camera.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a dustproof mechanism, includes the shell, and the internally mounted of shell has the fixed plate, and the through-hole has been seted up to the up end of fixed plate, and the inside of through-hole is provided with the dwang, and the fixed spacing ring and the first gear that are located fixed plate top and below respectively that cup joint of lateral wall of dwang, camera module is installed to the bottom of dwang. The fixed frame is installed to the inside top face of shell, and fixed frame's internally mounted has the fan, and fixed frame's left and right sides wall all communicates has the ventilation pipe, and the other end of ventilation pipe runs through the fixed plate and communicates and installs the solid fixed ring between shell and camera module, is provided with the cavity between solid fixed ring's lateral wall and the inside wall, and the bottom intercommunication of cavity has a plurality of dust blowing pipes that run through the inside bottom surface of shell. The guard box is installed to the bottom surface of shell, and the internally mounted of guard box has the second motor, and the output of second motor runs through the rear end face of guard box and installs the scraper blade with camera module mirror surface sliding connection.

In order to allow outside air to enter the inside of the fixed frame after being filtered, the dustproof mechanism is preferably provided with a dustproof net penetrating through the upper end face of the inside of the shell, and the cross section of the fixed frame is U-shaped and is opposite to the position of the dustproof net.

In order to enable the second gear to rotate so as to drive the first gear to rotate, the dustproof mechanism is preferably provided with a first motor on the upper end face of the fixed plate, and a second gear meshed with the first gear is arranged at the output end of the first motor penetrating through the outer side wall of the fixed plate.

In order to facilitate rotation of the camera module, the dustproof mechanism is preferably provided with a bearing between the inner side wall of the fixing ring and the outer side wall of the camera module.

In order to provide a rainproof effect on the housing, a rainproof cover is preferably arranged on the top of the housing as a dustproof mechanism of the utility model.

In order to facilitate sealing the connection between the housing and the camera module, the dustproof mechanism is preferably provided with a sealing gasket between the bottom of the inner side wall of the housing and the outer side wall of the camera module.

Compared with the prior art, the utility model has the following beneficial effects:

when the device is used, the camera module can rotate in the running process, at the moment, the sealing gasket prevents external dust and rainwater from entering the shell, and the fan is started to enable the dust screen to filter external air and then to be led into the two ventilation pipes, so that the two ventilation pipes are enabled to enable air to flow into the cavity of the fixing ring, and therefore a plurality of dust blowing pipes are enabled to blow out dust at the joint (gap) between the camera module and the shell, and the dust is further prevented from entering the shell. Through starting the second motor for the scraper blade rotates, is convenient for clear away spot and dust on the camera module mirror surface, thereby effectively prevent outside dust entering camera's inside, prolongs its life.

Drawings

FIG. 1 is a block diagram of an overall cross-section of the present utility model;

FIG. 2 is a bottom view of the retaining ring of the present utility model;

fig. 3 is a structural view of the housing of the present utility model.

In the figure: 1. a housing; 101. a rain cover; 2. a fixing plate; 201. a through hole; 202. a rotating lever; 203. a first gear; 204. a limiting ring; 205. a second gear; 206. a first motor; 3. a camera module; 4. a fixing ring; 401. a dust blowing pipe; 5. a fixed frame; 501. a blower; 502. a dust screen; 6. a ventilation pipe; 7. a protective box; 701. a second motor; 702. a scraper.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, a dustproof mechanism includes a housing 1, a fixing plate 2 is installed in the housing 1, a through hole 201 is formed in an upper end surface of the fixing plate 2, a rotating rod 202 is disposed in the through hole 201, a limiting ring 204 and a first gear 203 are fixedly sleeved on an outer side wall of the rotating rod 202 and are respectively located above and below the fixing plate 2, and a camera module 3 is installed at the bottom of the rotating rod 202. The fixed frame 5 is installed to the inside top face of shell 1, and fixed frame 5's internally mounted has fan 501, and fixed frame 5's the left and right sides wall all communicates has ventilation pipe 6, and fixed plate 2 is run through to the other end of ventilation pipe 6 and the intercommunication has the solid fixed ring 4 of installing between shell 1 and camera module 3, is provided with the cavity between the lateral wall and the inside wall of solid fixed ring 4, and the bottom intercommunication of cavity has a plurality of dust blowing pipes 401 that run through the inside bottom surface of shell 1. The guard box 7 is installed to the bottom surface of shell 1, and the internally mounted of guard box 7 has second motor 701, and the output of second motor 701 runs through the rear end face of guard box 7 and installs the scraper blade 702 with camera module 3 mirror surface sliding connection.

In this embodiment: when the device is used, the camera module 3 can rotate in the running process, at this moment, the sealing gasket prevents external dust and rainwater from entering into the shell 1, and the external air is filtered and then is introduced into the two ventilation pipes 6 by starting the fan 501, so that the two ventilation pipes 6 are caused to introduce air into the cavity of the fixed ring 4, and therefore the dust blowing pipes 401 blow out dust at the joint (gap) between the camera module 3 and the shell 1, and the dust is further prevented from entering the shell 1. Through starting second motor 701 for scraper 702 rotates, is convenient for clear away spot and dust on the camera module 3 mirror surface, thereby effectively prevent outside dust entering camera's inside, prolongs its life.

As a technical optimization scheme of the utility model, the upper end surface inside the shell 1 is provided with the dustproof net 502 in a penetrating way, and the cross section of the fixed frame 5 is U-shaped and is opposite to the position of the dustproof net 502.

In this embodiment: through setting up dust screen 502, can prevent outside dust to get into the inside of fixed frame 5, through setting up the transversal U-shaped of fixed frame 5 for outside air accessible dust screen 502 gets into the inside of fixed frame 5.

As a technical optimization scheme of the utility model, a first motor 206 is installed on the upper end surface of the fixed plate 2, and the output end of the first motor 206 penetrates through the outer side wall of the fixed plate 2 and is provided with a second gear 205 in meshed connection with the first gear 203.

In this embodiment: by starting the first motor 206, the second gear 205 can rotate to drive the first gear 203 to rotate, so as to drive the rotating rod 202 and the camera module 3 to rotate, thereby achieving the purpose of adjusting the angle.

As a technical optimization scheme of the utility model, a bearing is arranged between the inner side wall of the fixed ring 4 and the outer side wall of the camera module 3.

In this embodiment: through the installation bearing, the camera module 3 of being convenient for rotates at solid fixed ring 4.

As a technical optimization of the present utility model, a rain cover 101 is installed on top of the housing 1.

In this embodiment: by installing the rain cover 101, the housing 1 and the dust screen 502 can be shielded from the rain.

As a technical optimization scheme of the utility model, a sealing gasket is arranged between the bottom of the inner side wall of the shell 1 and the outer side wall of the camera module 3.

In this embodiment: by installing the gasket, external dust and rainwater are prevented from entering the inside of the housing 1.

Working principle:

firstly, when the device is used, the camera module 3 can carry out shooting and monitoring functions in the running process, and meanwhile, the first motor 206 is started, so that the second gear 205 can rotate to drive the first gear 203 to rotate, the rotating rod 202 and the camera module 3 are driven to rotate, the angle of the camera module 3 is adjusted, and meanwhile, the sealing gasket prevents external dust and rainwater from entering the shell 1 in the rotating process of the camera module 3. And through start fan 501 for dust screen 502 lets in two ventilation pipes 6 after filtering outside air, makes two ventilation pipes 6 let in the cavity of solid fixed ring 4 with the air current in, thereby makes a plurality of dust blowing pipes 401 blow off the dust of camera module 3 and shell 1 junction (gap), further prevents that the dust from getting into in the shell 1. By starting the second motor 701, the scraping plate 702 rotates to remove dirt and dust on the mirror surface of the camera module 3, so that the camera picture is ensured to be clear.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A dust protection mechanism comprising a housing (1), characterized in that: the novel dust blowing device is characterized in that a fixed plate (2) is arranged in the shell (1), a through hole (201) is formed in the upper end face of the fixed plate (2), a rotating rod (202) is arranged in the through hole (201), a limiting ring (204) and a first gear (203) which are respectively arranged above and below the fixed plate (2) are fixedly sleeved on the outer side wall of the rotating rod (202), a camera module (3) is arranged at the bottom of the rotating rod (202), a fixed frame (5) is arranged on the top end face of the interior of the shell (1), a fan (501) is arranged in the interior of the fixed frame (5), ventilation pipes (6) are respectively communicated with the left side wall and the right side wall of the fixed frame (5), the other end of each ventilation pipe (6) penetrates through the fixed plate (2) and is communicated with a fixed ring (4) arranged between the shell (1) and the camera module (3), a cavity is formed between the outer side wall and the inner side wall of the fixed ring (4), and the bottom of the cavity is communicated with a plurality of dust blowing pipes (401) penetrating through the bottom end face of the interior of the shell (1).

The camera module is characterized in that a protective box (7) is arranged on the bottom end surface of the shell (1), a second motor (701) is arranged in the protective box (7), and the output end of the second motor (701) penetrates through the rear end surface of the protective box (7) and is provided with a scraping plate (702) which is in sliding connection with the mirror surface of the camera module (3).

2. A dust control mechanism as claimed in claim 1, wherein: the dustproof screen (502) is installed in a penetrating mode on the upper end face inside the shell (1), and the cross section of the fixing frame (5) is U-shaped and opposite to the dustproof screen (502).

3. A dust control mechanism as claimed in claim 1, wherein: the upper end face of the fixed plate (2) is provided with a first motor (206), and the output end of the first motor (206) penetrates through the outer side wall of the fixed plate (2) and is provided with a second gear (205) in meshed connection with the first gear (203).

4. A dust control mechanism as claimed in claim 1, wherein: and a bearing is arranged between the inner side wall of the fixed ring (4) and the outer side wall of the camera module (3).

5. A dust control mechanism as claimed in claim 1, wherein: a rain cover (101) is arranged at the top of the shell (1).

6. A dust control mechanism as claimed in claim 1, wherein: and a sealing gasket is arranged between the bottom of the inner side wall of the shell (1) and the outer side wall of the camera module (3).