KR102520753B1 - Dome camera device with auto washing apparatus - Google Patents

Abstract

A dome camera device having an automatic cleaning device is disclosed. A dome camera device having an automatic washing device according to the present invention includes a housing having an accommodation space therein, a support part protruding downward from both sides of the lower surface of the housing so as to face each other and having a camera drive unit provided therein, and the support part on both sides. and a dome camera rotatably coupled therebetween and rotating within an angle set by the camera driving unit, wherein the dome camera is rotated upward and the lens is driven toward the receiving space to clean the lens. a main washing unit equipped with a brush and provided on one side of the receiving space; And first and second injection nozzles for sequentially or selectively spraying the cleaning solution to the lens when the dome camera is rotated, and sequentially or selectively contacting the lens after the cleaning solution is sprayed from the first and second injection nozzles It is characterized in that it includes an auxiliary cleaning unit provided on the other side of the accommodating space, including first and second cleaning members for wiping the lens.

Description

Dome camera device with automatic washing device {DOME CAMERA DEVICE WITH AUTO WASHING APPARATUS}

The present invention relates to a dome camera device having an automatic cleaning device, and more particularly, it is possible to improve the image quality of the camera by washing the lens of the dome camera contaminated with various foreign substances such as fine dust step by step, and to improve the image quality of the surrounding environment or traffic It relates to a dome camera device having an automatic cleaning device capable of enhancing monitoring of situations and the like.

In general, closed-circuit television (CCTV) cameras are widely used for purposes such as illegal parking on the road and crime prevention.

CCTV cameras are attached to the inside of a separate housing for the purpose of protecting the device and are installed in the required location. However, in places such as roads, steel mills, cement factories, and chemical factories, a large amount of dust or oil is suspended in the air, and these dust As time passes, they settle on the front glass portion of the camera housing, resulting in a problem of blurring the view of the camera.

In the conventional technology for cleaning the glass of the CCTV camera housing, there is a case in which a window brush and a water supply device are made small and attached, but when the rubber part of the window brush is deteriorated or the water supply device operates the brush when there is no water Dust or oil adhered to the glass surface tends to make the contamination more severe, and it is necessary to check the water supply periodically, to replenish the water if the water is insufficient, and to prevent freezing in winter when the temperature is low. There is a problem.

As a prior art for such a CCTV camera cleaning device, the structure of a camera housing dust removal device using air current according to Republic of Korea Patent Registration No. 10-0189288 (published date: 1999.06.01) is shown in FIG. As shown in FIG. 1, the camera housing dust removal device using the air flow forms a camera housing 1 as a double wall consisting of an inner wall 1a and an outer wall 1b, and between the inner and outer walls 1a and 1b. Air introduced into the surface of the air supply passage 4 and the air supply port 5 equipped with filters 7 inside the front and rear ends of the air supply passage 4 and the surface of the window 3 A technique of removing dust on the front of the window by the airflow supplied from the blowing fan by installing a blowing fan (8) connected to a timer (9) to form a spray hole (6) and to the air supply port (5). It is presented.

However, the above technology has a complicated structure and high installation cost, and has limitations in dust cleaning by air flow.

As another prior art, Korean Patent Publication No. 10-2003-0083544 (published on October 30, 2003) discloses a window cleaning device for a camera and sensor housing using a film. The window cleaning device of the camera and sensor housing using film winds a certain amount of thin and transparent film wound around the film roll on the unwinding side at regular intervals. and by rotating the winding roll side gear through the gear attached to the motor to wind the film wound on the unwinding side film roll to the winding side film roll to prevent the surface of the glass window from being dirty.

However, since the window cleaning device of the camera and sensor housings using film has a very complicated configuration and requires periodic replacement of the film, maintenance is difficult.

. Republic of Korea Patent Registration No. 10-0189288 (Announcement date: 1999.06.01) . Republic of Korea Patent Publication No. 10-2003-0083544 (published date: 2003.10.30)

An object of the present invention is to provide a means capable of cleaning a lens of a dome type camera step by step.

In addition, the problem to be solved by the present invention is not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clear to those skilled in the art from the description below. You will be able to understand.

According to the present invention, the above object, according to the present invention, a housing having an accommodation space therein, a support part protruding downward to face each other on both sides of the bottom of the housing and having a camera drive unit inside, and rotatably between the support parts on both sides It includes a dome camera that is coupled and rotates within an angle set by the camera driver, and is driven when the dome camera is rotated upward and the lens faces the receiving space, and a cleaning brush for cleaning the lens is provided. A main washing unit provided on one side of the receiving space; And first and second injection nozzles for sequentially or selectively spraying the cleaning solution to the lens when the dome camera is rotated, and sequentially or selectively contacting the lens after the cleaning solution is sprayed from the first and second injection nozzles It is achieved by a dome camera device having an automatic cleaning device, characterized in that it includes an auxiliary cleaning unit provided on the other side of the accommodating space, including first and second cleaning members for wiping the lens.

The main cleaning part may include: the cleaning brush disposed such that a lower surface faces the dome camera; a driven gear provided on the shaft of the washing brush; and a first actuator having a driving gear engaged with the driven gear.

The auxiliary cleaning unit selectively controls a pump for pumping the cleaning liquid from the cleaning liquid storage container to the first and second spray nozzles, respectively, and the cleaning liquid supplied to the first and second spray nozzles by the pump. 2 a cleaning liquid supply unit including first and second valves provided in the injection nozzle; and a second actuator that operates forward and backward so that the first cleaning member is coupled to the end of the first operating rod and the first cleaning member selectively contacts the lens, and the second cleaning member is coupled to the second operating rod. A contact cleaning unit disposed between the first and second injection nozzles may include a third actuator coupled to an end and configured to operate forward and backward so that the second cleaning member selectively contacts the lens.

The second actuator and the third actuator may be installed inclined to one side such that the first cleaning member and the second cleaning member operate forward and backward in a direction perpendicular to an outer surface of the dome camera.

The main cleaning unit and the auxiliary cleaning unit are inserted into and mounted into the accommodation space by a replacement means, or are separated by being pulled out, and the replacement means includes: a support body to which the main cleaning unit and the auxiliary cleaning unit are coupled; and guide members formed on one side of the housing and provided on both sides of an inner wall of a replacement hole opening a part of the accommodating space to guide the supporter.

The guide member may be formed of guide rails provided on both inner walls of the replacement hole, or may be formed of guide protrusions formed on the support and guide grooves formed on both inner walls of the replacement hole.

According to the present invention, since the housing of the dome camera is provided with an auxiliary cleaning unit and a main cleaning unit, as the dome camera is rotated in the cleaning direction, the cleaning solution and the cleaning member remove foreign substances on the surface of the lens, and then the cleaning brush of the main cleaning unit removes the lens. By washing the dome camera lens, it is possible to provide an effect of securing a clear image quality.

In addition, since the main cleaning unit and the auxiliary cleaning unit can be exchanged or maintained in a cartridge method, maintenance such as replacement of a cleaning solution or a cleaning member, which is a consumable, can be easily performed.

1 is a schematic diagram showing a CCTV camera washing device according to the prior art.
Figure 2 is a schematic diagram showing a dome camera device having an automatic cleaning device according to the present invention.
3 and 4 are schematic diagrams for explaining the operation of the dome camera device having an automatic cleaning device shown in FIG.
5 to 7 are schematic diagrams showing a state in which a replacement means is provided in the dome camera device having the automatic cleaning device shown in FIG. 2 .
Figure 8 is a block diagram for explaining the operation of the dome camera device having an automatic cleaning device shown in Figure 2.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

In this specification, the terms used are for describing the embodiments and are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. The terms 'comprises' and/or 'comprising' used in the specification do not exclude the presence or addition of one or more other elements.

In this specification, when an element is referred to as being “connected” to another element, it should be understood that although it may be directly connected to the other element, other elements may exist in the middle. On the other hand, when an element is referred to as being “directly connected” to another element, it should be understood that no intervening elements exist.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used in a meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless explicitly specifically defined.

The spatially relative terms "below", "beneath", "lower", "above", "upper", etc. It can be used to easily describe a component's correlation with other components. Spatially relative terms should be understood as including different orientations of elements in use or operation in addition to the orientations shown in the drawings. For example, if you flip a component shown in the drawing, a component described as "below" or "beneath" another component will be placed "above" the other component. can Thus, the exemplary term “below” may include directions of both below and above. Elements may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

In this specification, the terms used are only used to describe specific embodiments, and are not intended to limit the present invention.

In this specification, singular expressions include plural expressions unless the context clearly dictates otherwise.

Among the accompanying drawings, FIG. 2 is a schematic diagram showing a dome camera device having an automatic cleaning device according to the present invention, and FIGS. 3 and 4 are for explaining the operation of the dome camera device having an automatic cleaning device shown in FIG. It is a schematic diagram for

As shown in FIGS. 2 to 4, the dome camera device 10 having an automatic cleaning device according to the present invention includes a housing 20 having a receiving space S therein, and both sides of the bottom of the housing 20 It protrudes downward to face each other and is rotatably coupled between the support 30 provided with the camera drive unit 32 therein and the support units 30 on both sides to rotate within the angle set by the camera drive unit 32. It includes a dome camera 40, and a main cleaning unit 50 and a secondary cleaning unit 60 for cleaning the lens 42 of the dome camera 40 are provided inside the housing 20, respectively.

This will be described in more detail.

In the housing 20 constituting the dome camera device 10, support portions 30 protrude downward on both sides of the bottom surface, and an accommodation space S is formed therein. The housing 20 may be installed to a structure by means of a connecting bracket. The receiving space (S) may further include a driving means for rotating the support 30 on which the dome camera 40 is supported in a horizontal direction. The lower part of the housing 20 has an open structure. This is to expose a part of the main washing part 50 and the auxiliary washing part 60 downward.

Meanwhile, as shown in FIGS. 5 and 6 , a replacement hole 22 for installing the replacement means 70 is formed in the housing 20 . The replacement hole 22 is for opening the accommodation space S to one side, and is opened and closed by a separate cover, or a cover portion 72A formed at one end of the support body 72 shown in FIGS. 5 and 6 can be opened and closed by

The support portion 30 extends directly downward from both sides of the bottom surface of the housing 20 so as to face each other, and supports the dome camera 40 in rotation. Inside either support part 30, a camera driving part 32 for rotating the rotatably installed dome camera 40 within a set angle is provided. The camera driving unit 32 includes a driving motor 32A having a driving gear 32B, and a driven gear 32C provided on the shaft of the dome camera 40 to mesh with the driving gear 32B. With this structure, the dome camera 40 can rotate within a set angle according to forward and/or reverse rotation of the drive motor 32A.

The dome camera 40 is formed in a spherical shape and has a substantial camera embedded therein, and has a structure in which it is axially coupled to both support parts 30 and rotated in up and down directions by the camera driving part 32. The dome camera 40 is a kind of case for accommodating and protecting the camera therein, and a lens 42 is provided on one side. This lens 42 is intended to protect the actual lens of the camera.

Since the aforementioned housing 20, support 30, and dome camera 40 are well known, further detailed descriptions thereof will be omitted.

The main cleaning unit 50 is operated when the dome camera 40 is rotated upward by the operator and the lens 42 faces the receiving space S of the housing 20, that is, the lens 42 is based on FIG. 2 It is driven when rotated upward by 90 ° and provided with a cleaning brush 52 for cleaning the lens 42 and provided on one side of the receiving space (S).

The main cleaning unit 50 includes a cleaning brush 52 disposed so that the bottom surface faces the dome camera 40, a driven gear 54 provided on the shaft of the cleaning brush 52, and a driven gear 54. and a first actuator 56 having a meshing driving gear 56A. Since the cleaning brush 52 has a structure in which a cleaning cloth 52B made of any one material selected from a melting fabric material, a fabric material, a sponge, a microfiber fabric, and a non-woven fabric material is covered and coupled to the rotating body 52A, washing The cloth 52B can be separated from the rotating body 52A and replaced. Constructing the cleaning cloth 52B with a melted fabric material, a fabric material, a sponge, a microfiber fabric, a non-woven fabric material, etc. is to prevent damage to the lens 42 during the cleaning process.

The main cleaning unit 50 wipes the lens 42 with the cleaning cloth 52B while the cleaning brush 52 rotates by the operation of the first actuator 56 .

The auxiliary cleaning unit 60 includes first and second spray nozzles 62A and 62B and first and second spray nozzles for sequentially or selectively spraying a cleaning solution to the lens 42 when the dome camera 40 is rotated. After the cleaning solution is sprayed from (62A, 62B), the main cleaning unit 50 includes first and second cleaning members 64A and 64B for sequentially or selectively contacting the lens 42 to wipe the lens 42. It is provided on the other side of the accommodation space (S) so as not to interfere.

The auxiliary washing unit 60 includes a pump 66B for pumping the washing liquid from the washing liquid storage container 66A to the first and second spray nozzles 62A and 62B, respectively, and the first and second injections by the pump 66B. Washing liquid supply unit 66 including first and second valves 66C-1 and 66C-2 provided at the first and second injection nozzles 62A and 62B to selectively control the washing liquid supplied to the nozzles 62A and 62B. ). A second actuator 68A that operates forward and backward so that the first cleaning member 64A is coupled to the end of the first operating rod 68A-1 and the first cleaning member 64A selectively contacts the lens 42 And, a third actuator that operates forward and backward so that the second cleaning member 64B is coupled to the end of the second operating rod 68B-1 and the second cleaning member 64B selectively contacts the lens 42 ( 68B) and a contact cleaning unit 68 disposed between the first and second spray nozzles 62A and 62B.

The second actuator 68A and the third actuator 68B, as shown in FIG. 2, the first cleaning member 64A and the second cleaning member 64B are perpendicular to the outer surface of the dome camera 40 It is installed inclined to one side to operate forward and backward in the direction. As such, the second actuator 68A and the third actuator 68B are installed at an inclined angle to one side, so that each of the first cleaning member 64A and the second cleaning member 64B is centered on the dome camera 40. It can stably contact the lens 42 of the dome camera 40.

The above-described main washing unit 50 and auxiliary washing unit 60 may be fixedly installed inside the housing 20, but as shown in FIGS. 5 and 6, replacement means 70 replace them in a cartridge manner. It can be installed in the receiving space (S) so that it is possible.

Among the accompanying drawings, FIGS. 5 to 7 are schematic diagrams showing a state in which a replacement means is provided in the dome camera device having the automatic cleaning device shown in FIG. 2 .

As shown in FIGS. 5 to 7, the main cleaning unit 50 and the auxiliary cleaning unit 60 are inserted into the accommodation space S in a cartridge manner by the replacement means 70 and mounted or pulled out to be separated. can

The replacement means 70 includes a support 72 to which the main cleaning unit 50 and the auxiliary cleaning unit 60 are coupled, and a replacement hole formed on one side of the housing 20 to open a part of the receiving space S. It is provided on both sides of the inner wall of (22) and includes a guide member (74) for guiding the support (72).

The support 72 may be formed of a drawer type with a lower portion open and a cover portion 72A formed on one side, or a plate material having one side bent to form a cover portion 72A. In this embodiment, it will be described based on what is configured as a drawer type.

A cleaning solution supply unit 66 is provided on one side of the inside of the support 72, and a contact cleaning unit 68 is provided on the lower side of the cleaning solution supply unit 66. And, the main cleaning part 50 is provided on the opposite side of the inside of the supporter 72 .

The guide member 74 may be formed of a pair of guide rails 74A provided on both sides of the replacement hole 22 or the inner wall of the accommodation space S, respectively. The guide rail 74A is composed of a fixed body 74A-2 provided on the replacement hole 22 and a movable body 74A-1 slidably coupled to the fixed body 74A-1. Due to the structure of the guide rail 74A, when the handle provided on the cover part 72A is attached and pulled out, the support 72 is drawn out and pushed in so that it can be accommodated and mounted in the accommodation space S. Although not shown in the drawings, the guide member 74 consists of a guide protrusion formed on the support 72 and a guide groove formed on both inner walls of the replacement hole 22, and the guide protrusion is inserted into the guide groove and guided while sliding. may be

In this way, the support 72 can be accommodated in or withdrawn from the accommodation space S by the cartridge method by the replacement means 70, such as consumables such as cleaning cloths 52B or first and second cleaning members 64A and 64B. It can be easily replaced, the cleaning liquid can be easily replenished in the cleaning liquid storage container 66A, and the maintenance of each part can be easily and quickly performed.

On the other hand, in the main cleaning unit 50, the cleaning brush 52 descends (moves toward the lens) in a state where the lens 42 of the dome camera 40 is rotated upward, so that the cleaning cloth 52B cleans the lens 42. and, when cleaning is completed, the cleaning brush 52 is raised so that the cleaning cloth 52B is separated from the lens 42 .

The lifting and lowering operating means 55 includes a support member 55A provided on the support 72 to support the shaft 52C of the washing brush 52 and guide the upward and downward movement, and the shaft 52C. It consists of a fourth actuator (55B) for linearly moving the driven gear 54 coupled to the up and down. At the end of the operating rod 55B-1 of the fourth actuator 55B, a hooking end 54B-2 having a fitting portion formed in the center is formed, and the engaging end 54B-2 is inserted into one side of the driven gear 54. A locking portion 54A having an annular locking groove for locking is protruded. Therefore, when the operating rod 55B-1 pulls, the engaging end 54B-2 pulls the engaging portion 54A upward, and when the operating rod 55B-1 pushes, the engaging end 54B-2 moves the engaging portion 54B-2 to the engaging portion. (54A) is pushed downward.

With this configuration, when the fourth actuator 55B pushes the driven gear 54 directly downward, the washing cloth 52B adheres to the lens 42, and when the driven gear 54 is pulled, the washing cloth 52B moves the lens ( 42) is spaced apart.

This operation is engaged with the driven gear 54 and the driving gear 56A, but since it can move in the axial direction, the driven gear 54 integrated with the shaft 52C supported and guided by the support member 55A is pulled and The cleaning brush 52 ascends and descends according to the pushing motion, and thus the cleaning cloth 52B may be selectively adhered to or separated from the lens 42 . In particular, since the washing cloth 52B can be separated from the lens 42, interference with the rotation of the dome camera 40 is not generated.

The operation of the dome camera device 10 having the automatic washing device according to the present invention configured as described above will be described.

As shown in FIG. 8, when the manager of the dome camera 40 finds that the lens 42 is stained with contaminants, he presses the cleaning button to rotate the dome camera 40 to the cleaning position and the auxiliary cleaning unit 60 and the main washing unit 50 is driven.

First, when the manager presses the cleaning button, the dome camera 40 is rotated upward (12 o'clock direction) by the camera driving unit 32. That is, the lens 42 rotates upward to be positioned below the main cleaning part 50 .

While the dome camera 40 rotates upward, the cleaning liquid is sprayed from the first spray nozzle 62A to the lens 42, and the second cleaning member 64B and the first cleaning member 64A advance toward the lens 42. do. Subsequently, the cleaning liquid is sprayed from the second spray nozzle 62B.

In this process, contaminants on the lens 42 are primarily removed by the second cleaning member 64B and the first cleaning member 64A.

In the above process, the lens 42 is primarily cleaned while passing through the auxiliary cleaning part 60 and rotates in the 12 o'clock direction (downward direction of the main washing part) in a state of being sprayed from the second spray nozzle 62B and stops. , the fourth actuator 55B moves forward. When the fourth actuator 55B moves forward, the cleaning brush 52 descends so that the cleaning cloth 52B adheres to the lens 42, and then the first actuator 56 operates. As the cleaning brush 52 rotates due to the operation of the first actuator 56, the cleaning cloth 52B rotates for approximately 5 seconds in a state in close contact with the lens 42.

In this way, since the cleaning cloth 52B rotates in close contact with the lens 42 in the sprayed state, the lens 42 is washed.

When the completion of cleaning of the lens 42 is detected by the lapse of a set time or by a separate detection sensor in the above process, the lifting and lowering operation means 55 operates to move the cleaning brush 52 upward. It is separated from the lens 42 and the camera drive unit 32 rotates the dome camera 40 to its original position.

When the dome camera 40 rotates to the original position, the second and third actuators 68A and 68B move forward again to advance the first and second cleaning members 64A and 64B toward the outer surface of the dome camera 40. . Therefore, since the lens 42 of the dome camera 40 rotating to the original position is sequentially contacted by the second and first cleaning members 64B and 64A, the excess cleaning liquid on the lens 42 is wiped off.

When the lens 42 of the dome camera 40 is contaminated through the above process and clear image quality is not provided, the cleaning button is operated to remove the contaminants on the lens 42 step by step.

In the foregoing, although specific embodiments of the present invention have been described and shown, the present invention is not limited to the described embodiments, and it is common knowledge in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Therefore, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and modified embodiments should fall within the scope of the claims of the present invention.

10: dome camera device 20: housing
30: support unit 32: camera driving unit
40: dome camera 42: lens
50: main washing part 52: washing brush
54: driven gear 56: first actuator
60: auxiliary washing unit 62A, 62B: first and second spray nozzles
64A, 64B: first and second cleaning member 66: cleaning solution supply unit
68: contact cleaning unit 68A: second actuator
68B: third actuator 70: replacement means
72: support 74: guide member

Claims (6)

A housing having an accommodation space therein, a support part protruding downward from both sides of the lower surface of the housing so as to face each other and having a camera drive unit provided therein, and a support part rotatably coupled between the support parts on both sides to set an angle set by the camera drive unit. Including a dome camera operating in rotation within,
a main cleaning unit provided at one side of the accommodation space with a cleaning brush for cleaning the lens when the dome camera is rotated upward and the lens is driven toward the accommodation space; And first and second injection nozzles for sequentially or selectively spraying the cleaning solution to the lens when the dome camera is rotated, and sequentially or selectively contacting the lens after the cleaning solution is sprayed from the first and second injection nozzles An auxiliary cleaning unit provided on the other side of the accommodation space, including first and second cleaning members for wiping the lens,
The main washing part,
A first actuator including a washing brush disposed with a bottom surface facing the dome camera and made of a washing cloth, a driven gear provided on an axis of the washing brush, and a drive gear meshing with the driven gear, wherein the dome Elevating and descending actuating means for lowering the cleaning brush in a state in which the lens of the camera is rotated upward so that the cleaning cloth comes into contact with the lens, and raising the cleaning brush when cleaning is completed so that the cleaning cloth is separated from the lens Further, the lifting and lowering operating means includes a support member provided on a support body for rotationally supporting the shaft of the washing brush and guiding its upward and downward movement, and a driven gear coupled to the shaft in a straight line upward and downward. It is made of a fourth actuator having a locking end formed with a fitting portion in the center at the end of the actuating rod, and a locking portion having an annular locking groove for inserting and locking the locking step protrudes from one side of the driven gear,
The auxiliary washing unit,
A pump for pumping the cleaning liquid from the cleaning liquid storage container to the first and second spray nozzles, respectively, and provided at the first and second spray nozzles to selectively control the cleaning liquid supplied to the first and second spray nozzles by the pump a cleaning liquid supply unit including first and second valves; and
A second actuator that operates forward and backward so that the first cleaning member is coupled to the end of the first operating rod and the first cleaning member selectively contacts the lens, and the second cleaning member is coupled to the end of the second operating rod And a contact cleaning unit disposed between the first and second injection nozzles including a third actuator coupled to and operating forward and backward so that the second cleaning member selectively contacts the lens,
The second actuator and the third actuator are installed inclined to one side so that the first cleaning member and the second cleaning member operate forward and backward in a direction perpendicular to the outer surface of the dome camera. Characterized in that ,
Dome camera device with automatic cleaning device. delete delete delete According to claim 1,
The main washing part and the auxiliary washing part,
It is inserted into and mounted into the accommodation space by the replacement means, or is pulled out and separated, and the replacement means,
a support to which the main cleaning unit and the auxiliary cleaning unit are coupled; and
Characterized in that it includes guide members for guiding the supporter provided on both sides of the inner wall of the replacement hole formed on one side of the housing and opening a part of the accommodation space.
Dome camera device with automatic cleaning device. According to claim 5,
The guide member is
Characterized in that it consists of guide rails provided on both inner walls of the replacement hole, or a guide protrusion formed on the support and a guide groove formed on both inner walls of the replacement hole.
Dome camera device with automatic cleaning device.

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