KR0133349Y1 - Supervisory camera - Google Patents

Abstract

The present invention relates to a surveillance camera, and by incorporating a microphone together with a speaker, it is possible to make a mutual call between a camera unit installation unit and a control unit equipped with a monitor without installing an interphone. The information can be acquired and the monitoring function can be strengthened. The direction can be adjusted by 300 ° in the direction of rotation (rotation direction) with respect to the axis perpendicular to the attachment surface, and the direction of rotation about the axis parallel to the attachment surface (incline direction) ) Can be adjusted to the maximum angle, and can be adjusted to the entire area without blind spots, even if it is installed at any position of the place to be monitored. I did not receive it.

Description

Surveillance camera

1 is an exploded perspective view of a surveillance camera according to the present invention.

2 is a longitudinal cross-sectional view of the assembled state of the present invention.

3 is a longitudinal cross-sectional view of the assembled state of the present invention.

Figure 4 is an assembled side view showing the inclined direction adjustment state of the present invention.

Figure 5 (a) (b) is an assembled state side view showing a turning direction adjustment state of the present invention.

* Explanation of symbols for main parts of the drawings

10: base 11: base body

14: positioning boss 15: electrical connector insertion groove

16: spherical contact groove 17: turning direction groove

18: stop projection 19: spring insertion groove

20: base cover 21: positioning groove

30: rotation connecting shaft 31: the body

32: departure prevention groove 33: departure prevention jaw

34: hang guide 35: neck

36: regulation protrusion 40: release prevention ring

41: disc portion 43: elastic locking piece

50: rotating body 51: hemispherical member

52: camera unit mounting portion 53: inclined guide groove

54: half circumferential cutout 55: inner circumferential surface

56a: built-in speaker 56b: built-in microphone

60: camera unit 61: objective lens

62: camera unit circuit board 70: speaker

80: microphone

The present invention relates to a surveillance camera used to prevent accidents in banks, parking lots, security guards, elevators, etc., and it is possible to monitor the situation of the installation place more efficiently by using a microphone as well as video. It is possible to talk between the monitor and the camera without installing a separate interphone, and the angle of view can be enlarged to the maximum, so that it can be adjusted to the entire area without blind spots even when installed in any part of the place to be monitored. In addition, the present invention relates to a surveillance camera so that the installation location is not restricted.

Conventionally, this type of surveillance camera mainly captures the situation of the installation place as an image, and it is possible to transmit audio information from the monitor side, that is, the control unit to the camera side, by the built-in speaker. There was a difficulty in accurately grasping the situation of the installation place because it could not be listened to, and there was a problem in that a separate interphone was installed for the call between the installation place and the control unit.

In addition, the conventional surveillance camera has a rotation angle (hereinafter referred to as tilt angle) with respect to an axis parallel to the attaching surface within 180 ° and a rotation angle (hereinafter referred to as pivot angle) with respect to an axis perpendicular to the attaching surface is referred to as 120 °. As a result, there is a problem in that installation is cumbersome, such that a blind spot is generated depending on the attachment position, so that the installation position of the camera must be set differently according to the direction to be monitored.

The purpose of the present invention is to equip the camera with a microphone so that the situation of the installation place can be obtained not only as image information but also as audio information, and the camera side and the monitor side can be mutually transmitted and received to perform a more effective surveillance function. In addition, it is intended to provide a surveillance camera that can reduce the installation cost of the surveillance system by allowing communication between the installation site and the control unit without installing an interphone.

Another object of the present invention is to provide a surveillance camera that can be adjusted to the entire area without any blind spot to be installed at any position of the place to be monitored, so that the monitoring function is enhanced and the installation location is not restricted.

Base attached to the wall or ceiling of the installation place to achieve the object of the present invention; A rotational connecting shaft rotatably supported on the base in a pivoting direction; A pair of hemispherical members are combined to form a substantially spherical shape, and a camera unit mounting portion is formed on one side and is rotatably supported integrally with the pivot connecting shaft in a pivoting direction with respect to the base, and relative to the pivot connecting shaft in an oblique direction with respect to the base. A rotatable body rotatably supported by; A camera unit embedded in the camera unit mounting portion formed at the distal end of the pivot; A speaker embedded in one side of the pivot; There is provided a surveillance camera, characterized in that provided with a microphone embedded in the other side of the rotating body.

Hereinafter, the monitoring camera according to the present invention will be described in detail according to the embodiment shown in the accompanying drawings.

Surveillance camera according to the present invention, as shown in Figure 1, the base 10 is attached to the wall surface or the ceiling surface of the place to be monitored, and the base 10 is rotated rotatably supported in the rotational direction A linking shaft 30, a substantially spherical rotating body 50 which is rotatably integrated with the rotating connecting shaft 30 and rotatably coupled in an oblique direction with respect to the rotating connecting shaft 30, and the rotating body Camera unit 60 is installed on the front end side of the 50, the speaker 70 is installed on one side of the rotating body 50, and the microphone 80 is provided on the other side of the rotating body 50 do.

The base 10 is formed in a substantially dome shape, and includes a base body 11 having a shaft hole 12 drilled in the center of the dome and being open on the rear surface, and a base cover 20 covering the rear surface of the base body 11. do.

The base body 11 and the base cover 20 are coupled by fastening a set screw 25 penetrating the base cover 20 to a pair of screw bosses 11a formed inside the base body 11. .

At this time, the fixing screw 25 passes through the base cover 20 and the main circuit board 23 while the main circuit board 23 located inside the base cover 20 is in close contact with the screw boss 11a. By fastening to the boss 11a, the main circuit board 23 and the base cover 20 are fixed at the same time.

On the outer side of the base body 11, a screw through hole 13 through which a fixing screw (not shown) for fixing the base body 11 to a wall surface or a ceiling surface is perforated at positions facing each other. Positioning bosses 14 are formed around the back side of the screw through hole 13, and positioning grooves 21 corresponding to the positioning bosses 14 are formed on the outer side of the base cover 20. By making the positioning boss 14 and the positioning groove 21 coincide, the relative position of the base body 11 and the base cover 20 is comprised correctly.

On the other hand, in the intermediate position between the two side threaded through hole 13 of the base body 11, the connector installation groove 15 corresponding to the electrical connector 24 fixed to one side of the main circuit board 23 is formed, One side of the base cover 20 is formed with a splice engaging projection 22 corresponding to the splice installation groove 15.

A spherical contact groove 16 is formed around the front side of the shaft hole 12 of the base body 11 and coincides with the outer circumferential surface of the pivot 50, between the shaft hole 12 and the contact groove 16. The turning direction guide groove 17 is formed, and the turning angle stop projection 18 of the rotating body 50 is formed at one side of the turning direction guide groove 17.

In addition, an inner annular projection 19a having an inner diameter equal to the inner diameter of the shaft hole 12 and an outer annular projection 19b having a larger diameter than the inner annular projection 19a are formed around the inner side of the shaft hole 12 of the base body 11. Is formed so that the spring insertion groove 19 is formed between them.

The pivot connecting shaft 30 is the body portion 31 is inserted into the shaft hole 12 drilled in the base body 11, and the separation prevention groove 32 formed in the inner end of the body portion 31 and the separation Preventive jaw (33), the locking guide piece 34 formed on the outer end of the body portion 31 is connected to the pivot 50, the neck portion formed between the body portion 31 and the locking guide piece 34 It consists of 35.

The locking guide piece 34 of the rotational connecting shaft 30 is curved in a shape corresponding to the spherical surface of the rotational body 50 and is fitted into the inclined direction guide groove 53 of the rotational body 50 to be described later. ) Is configured to rotate relative to the inclined direction and to rotate integrally in the turning direction.

The neck portion 35 is a half circumferential cutout portion 54 of the rotating body 50, which will be described later, is fitted, concave in width slightly larger than the thickness of the half circumferential cutout portion 54, the body portion 31 ) And a stop projection 18 formed on one side of the turning guide groove 17 while being relatively guided in the turning guide groove 17 formed around the shaft hole 12 of the base body 11 between the neck part 35 and the neck part 35. The control projection 36 is formed so that the turning angle of the pivot 50 is regulated so that it is caught.

The stationary protrusion 18 and the regulating protrusion 36 are set in position and thickness so that the rotating body 50 can be rotated within a range of 300 ° by 150 ° left and right in the turning direction.

The rotation preventing shaft 30 is prevented from being randomly separated from the shaft hole 12 of the base body 11 by inserting the separation preventing ring 40 into the separation preventing groove 32 and the separation preventing jaw 33. .

The release preventing ring 40 may be a conventional e-ring, etc., but the circular portion 41 and the circular portion 41 for supporting the compression coil spring 45 as shown in Figures 1 and 3 The through-hole 42 and the circumferential diameter extending from the periphery of the through-hole 42 to the opposite end is smaller than the diameter of the separation prevention jaw 33, the separation prevention ring 40 is rotated connecting shaft 30 It is preferable to use a structure having a plurality of elastic catching pieces 43 caught by the release prevention jaw 33 when fitted to the inner end of the). The circular portion 41 is formed with a spring support groove 44 by the inner and outer annular projections 44a and 44b having a small diameter, and thus the compression coil spring 45 is inserted into the compression coil spring 45. It can be supported so as not to flow.

A compression coil spring 45 is fitted around the pivotal connecting shaft 30, and the compression coil spring 45 has an inner and outer annular protrusion formed at one end around the inner side of the shaft hole 12 of the base body 11. Between the inner and outer annular projections 44a and 44b of the release preventing ring 40, which is inserted into contact with the spring insertion groove 19 formed between the 19a and 19b, and the other end is fitted to the inner end of the pivot connecting shaft 30. The outer circumferential surface of the rotating body 50 coupled to the pivot connecting shaft 30 is always the spherical surface of the base body 11 by being inserted into the spring insertion groove 44 formed therein to elastically support the pivot connecting shaft 30 therein. It is in close contact with the mold contact groove 16.

The rotating body 50 is formed of a substantially hollow spherical body protruding from the camera unit mounting portion 52 in which the camera unit 60 is built on the tip side, including the camera unit mounting portion 52 to both sides. Along the circumferentially divided circumference is formed inclined guide groove 53 is inserted into the engaging guide piece 34 formed on the outer end of the rotation connecting shaft 30.

The rotating body 50 is configured by combining a pair of hemispherical members 51 half-circuited along the circumference that divides to both sides, including the camera unit 60 to allow the camera unit 60 to be built therein. , The semicircular cylindrical cutout portion 54 except for the camera unit installation portion 52 is formed to maintain an interval of the thickness of the neck portion 35 of the pivot connecting shaft 30, and the half hemisphere member 51 has a half circle. An inner circumferential surface 55 having a diameter smaller than the outer diameter of the rotating body 50 is formed inside the columnar cutout 54 such that the pivot connecting shaft is between the half circumferential cutout 54 and the inner circumferential surface 55. An inclined direction guide groove 53 is formed in which both side portions of the locking guide piece 34 formed at the outer end of the 30 are inserted.

The inner circumferential surface 55 is inserted into the inner circumferential side of the half-circular circumferential cutout portion 54 of the other hemispherical member 51, and is connected between the half-circumferential circumferential cutout portion 54 and the inner circumferential surface 55. An interval corresponding to the thickness of the locking guide piece 34 of 30 is formed so that the inclined direction guide groove 53 is formed by this interval.

At both ends of the half circumferential cutout portion 54, a locking jaw 54a is formed to catch the neck portion 35 of the pivot connecting shaft 30 to restrict the tilt angle of the pivot 50 in the inclined direction. The angle between the locking jaw 54a is set in a range in which the rotation body 50 can rotate 200 ° in the inclined direction in consideration of the thickness of the neck portion 35 of the rotation connecting shaft 30.

A speaker built-in groove 56a and a microphone built-in groove 56b are respectively formed at positions 90 ° to both sides of the camera unit mounting portion 52 of each hemispherical member 51, and both hemispheres are formed around the inner side thereof. Screw through bosses 58a through which the set screws 57 for engaging the member 51 pass, and screwed bosses 58a through which the set screws 57 are fastened are formed, respectively.

The screw through boss (58a) is formed in a larger diameter than the screw fastening boss (58b), the end of the screw through boss (58a) is formed with a coupling groove into which the end of the screw fastening boss (58b) is formed, both bosses 58a and 58b are designed to be firmly coupled.

In addition, the speaker built-in groove (56a) and the microphone built-in groove (56b), respectively, the speaker 70 and the microphone 80 is built, these speakers 70 and the microphone 80 is a speaker cover 71 and a microphone cover ( 81) is covered.

Here, the speaker cover 71 and the microphone cover 81 are provided with a plurality of soaking holes 72 and 82.

In addition, hook hooks 73 and 83 are formed at the inner edges of the covers 71 and 81, and hook hook holes 56b 'are formed by drilling the hook hooks 73 and 83 around the inner grooves 56a and 56b. The covers 71 and 81 are coupled to each other by being fitted into the cover. Hook hook hole in which the hook hook 73 of the speaker cover 71 is inserted in the drawing is not shown, but is formed in the same state as the hook hook hole on the microphone side.

Substrate support pieces 59 each having an insertion groove 59a into which the camera unit circuit board 62 fixed to the rear surface of the camera unit 60 is inserted are formed inside the both hemispherical members 51.

A protrusion piece 52a for attaching the camera unit cover plate 63 is formed on the inner circumferential surface of the front end side of the camera unit mounting portion 52. The cover plate 63 is adhered to the protrusion piece 52a with an adhesive.

The camera unit cover plate 63 is perforated with a through hole 63a to expose only the objective lens portion 61 of the camera unit 60 at the center thereof.

A support plate 64 having a through hole 64a through which the support piece 52b having the support groove 52c is protruded and the camera unit 60 is inserted therein is inserted into and supported on the inner circumferential surface of the camera installation part 52. The camera unit 60 is firmly supported.

The camera unit 60 has a camera unit circuit board 62 electrically connected to the main circuit board 23.

In assembling the monitoring camera of the present invention configured as described above, the camera unit circuit board 62 is inserted into the insertion groove 59a of the substrate support piece 59 formed inside the one side hemispherical member 51 constituting the rotating body 50. And inserting and supporting both side portions, and insert the speaker 70 and the microphone 80 into the speaker built-in groove 56a and the microphone built-in groove 56b formed in both hemispherical members 51.

The speaker cover 71 and the microphone cover 81 are covered outside the speaker built-in groove 56a and the microphone built-in groove 56b to prevent the speaker 70 and the microphone 80 from being exposed.

In this case, since the elastic hooks 73 and 83 are formed in the speaker cover 71 and the microphone cover 81, the engaging holes 56a 'formed at both sides of the internal grooves 56a and 56b. 56b ') so as to be elastically engaged so as not to be detached arbitrarily.

Inclined direction guide groove 53 formed between the half circumferential cutout portion 54 and the inner circumferential surface 55 of both hemispherical members 51 to which the camera unit 60, the speaker 70, and the microphone 80 are coupled. Insert both sides of the engaging guide piece 34 of the rotational connecting shaft 30, and insert the semi-circular cylindrical cutout portion 54 into the neck portion 35, and the inner circumferential surface 55 is the other hemispherical member 51 The fixing screw 57 is inserted through the threaded through boss 58a of the one-side hemispherical member 51 in a state where the half-circular cut-out portion 54 is inserted into the inner side of the The assembly of the rotating body 50 and the rotating body 50 and the rotating connecting shaft 30 are coupled to each other by fastening to the boss 58b.

Here, the support plate 64 is inserted and supported in the support groove 52c of the support piece 52b formed on the inner circumferential surface of the camera mounting portion 52 before the hemispherical member 51 is engaged, and the through hole of the support plate 64 is supported. By passing the camera unit 60 through 64a, the camera unit 60 is supported by the rotating body 50 because its circuit board 62 is supported by the substrate support piece 59 and the camera unit support piece 52. It is joined in a solid state without being flown.

In this state, the camera unit cover plate 63 is adhered to the projection piece 52a formed on the front inner circumferential surface of the camera unit installation unit 52 so that only the objective lens 61 portion of the camera unit 60 is the camera unit cover plate 63. To be exposed through the through hole (63a).

After the assembly of the base 10 and the pivot connecting shaft 30, the pivot 50, the speaker 70 and the microphone 80 is completed, the inner end of the pivot connecting shaft 30 is connected to the base body. Insert the inner side through the shaft hole (12) of the (11) and insert the compression coil spring (45) on the inner side, and then insert the departure prevention ring (40) in the inner end of the pivot connecting shaft (30) compression coil spring (45) ) Both ends of the base body 11 is inserted into the spring insertion grooves (19, 44) formed by the inner and outer annular projections (19a, 19b) and (44a, 44b) on the inner surface and the separation prevention ring (40) of the base body (11) While pulling the pivot connecting shaft 30 toward the base body 11 side, the engaging guide piece 34 of the pivot connecting shaft 30 is inserted into the inclined guide groove 53 of the pivot 50 to be caught. Therefore, the rotating body 50 is finally pulled toward the base body 11, and the outer circumferential surface thereof is assembled in close contact with the spherical contact groove 16 of the base body 11.

At this time, the inner end of the rotation connection shaft 30 is fitted through the through-hole 42 of the separation prevention ring 40 in the separation preventing ring 40 is fitted to the rotation connecting shaft 30 and in this process The piece 43 is opened by the release preventing jaw 33, and after the leaving prevention jaw 33 passes through the front end of the elastic catching piece 43, the elastic catching piece 43 is contracted and restored by its own elastic force. In addition to being fitted into the departure prevention groove 32, the front end is caught in the departure prevention jaw 33 will be in a state that does not fall arbitrarily.

The main circuit board 23 is brought into close contact with the screw boss 11a from the rear side of the base body 11, the electrical connector 24 is aligned with the connector installation groove 15, and then the base cover 20 is covered. The main body board 23 and the base cover 20 are simultaneously connected to the base body 11 by fastening the fixing screw 25 penetrating the base cover 20 and the main circuit board 23 to the screw boss 11a. Coupled to to cover the back opening of the base body (11).

In joining the base body 11 and the base cover 20, the positioning grooves 21 formed on both sides of the base cup 20 coincide with the positioning bosses 14 formed on both sides of the base body 11. By this, the relative position of the base body 11 and the base cover 20 can be accurately maintained.

When the assembly of the surveillance camera of the present invention is completed by the above process, the back surface of the base body 11 is in close contact with the wall or ceiling of the place to be installed, and the screw through hole 13 drilled in the base body 11. The installation is completed by fastening to the wall or ceiling surface through a fixing screw (not shown) through.

In this state, the image information by the camera unit 60 and the audio information by the microphone 80 can be confirmed by the control unit, so that the situation of the installation place can be more accurately monitored and a separate interphone is not installed. Without the speaker 70 and the microphone 80 will be able to talk between the installation place and the control unit.

Hereinafter, the process of adjusting the monitoring angle of the camera in the installation is completed.

First, in the case of adjusting the rotation in the inclined direction, when the rotating body 50 is turned counterclockwise in the solid line display state of FIG. 4, the inclined direction guide groove 53 of the rotating body 50 as shown in FIG. Both ends of the engaging connecting piece 34 of the pivotal connecting shaft 30 are fitted into each other, and the half circumferential cutout 54 is fitted to the neck 35 of the pivotal connecting shaft 30. The body 50 is adjusted in an inclined direction so as to rotate in an inclined direction with respect to the base body 11 through the rotation connecting shaft (30).

At this time, since the pivot connecting shaft 30 is elastically supported in the state always pulled inward by the spring 45, the inner surface and the half circumferential cutout portion 54 of the engaging connecting piece 34 of the pivot connecting shaft 30 are provided. The inner circumferential surface of the guide is relatively elastically in close contact with the outer circumferential surface of the rotating body 50 is elastically in close contact with the spherical contact groove 16 formed around the shaft hole 12 of the base body 11 The tilting direction of the rotating body 50 is adjusted to be stable.

This inclination direction adjustment is made within the range that the neck portion 35 of the pivot connecting shaft 30 is caught by the engaging jaw 54a formed at both ends of the half-circumferential cutout portion 54 of the pivot 50. As shown in FIG.

On the other hand, in the case of adjusting the rotation in the rotational direction, when the rotating body 50 is turned left and right, the engaging connecting piece 34 formed on the outer end of the rotating connecting shaft 30 is the turning direction guide groove 17 of the rotating body 50. Is inserted into the rotational body 50 and the rotational connection shaft 30 does not rotate relative to each other and the body portion 31 of the rotational connection shaft 30 is rotatable in the shaft hole 12 of the base body 11 Since the rotating body 50 and the rotating connecting shaft 30 are integrally inserted, the rotational angle with respect to the base body 11 is adjusted.

When the rotational body 50 is adjusted in the rotational direction, the engaging connecting piece 34 of the rotational connection shaft 30 is inserted into the inclined direction guide groove 53 of the rotational body 50 so that the inclined direction groove 53 is In the process of turning in the state supported by the engaging connecting piece 34, the pivot connecting shaft 30 is elastically supported in a state that is always pulled inward by the spring 45, this elastic force is inclined direction in the engaging connecting piece 34 Since the inner circumferential surface 55 constituting the guide groove 53 is transmitted to the rotating body 50, the outer circumferential surface of the rotating body 50 is a spherical contact groove formed around the axial hole 12 of the base body 11 ( 16 is smoothly rotated while being in close contact with the elastic member, and the adjustment is completed, the rotating body 50 is maintained without being rotated arbitrarily by the elastic contact force by the spring 45.

This turning direction adjustment is adjusted within the range of 300 ° by the stop protrusion 18 formed in the regulating projection 36 and the turning direction guide groove 17 of the pivotal connecting shaft 30, as shown in Figs. 5a and b. In this way, it is possible to prevent the twisting or disconnection of the wires installed therein while providing a sufficient monitoring angle in the turning direction.

As described above, according to the present invention, it is possible to grasp the situation of the installation place more accurately and quickly by the image information by the camera unit and the voice information by the microphone, so that the monitoring function can be strengthened and a separate interphone is not installed. In addition, it is possible to make a call between the installation place and the control unit more conveniently, and to reduce the installation cost of the monitoring system.

In addition, the surveillance angle range of the camera has been greatly expanded to 200 ° in the inclination direction and 300 ° in the turning direction. Therefore, it can be adjusted to the entire area without any blind spots, regardless of where it is installed. There is.

Claims (11)

A base attached to the wall or ceiling of the installation site; A rotational connecting shaft rotatably supported on the base in a pivoting direction; A pair of hemispherical members are combined to form a substantially spherical shape, and a camera unit mounting portion is formed on one side and is rotatably supported integrally with the pivotal connecting shaft in a pivoting direction with respect to the base, and relative to the pivotal connecting shaft in an oblique direction with respect to the base. A rotatable body rotatably supported by; A camera unit embedded in the camera unit mounting portion formed at the distal end of the pivot; A speaker embedded in one side of the pivot; Surveillance camera, characterized in that provided with a microphone built in the other side of the rotating body. According to claim 1, wherein the base is formed in a dome shape is formed in the center of the dome-shaped shaft hole through which the pivot connecting shaft is penetrated, the spherical contact groove which is in contact with the outer peripheral surface of the rotating body around the surface side of the shaft hole It is formed, the contact groove and the shaft construction is formed in the turning guide groove, the base is formed with a stop projection on one side of the turning guide groove, the outer end side of the pivot connecting shaft by the contact with the stop projection Surveillance camera, characterized in that the regulating projection is formed to regulate the angle of rotation of the rotational connecting shaft. According to claim 2, wherein the back opening of the base is covered by a base cover coupled with the main circuit board, positioning projections are formed on both sides of the back edge of the base, the base cover corresponding to the positioning projections A groove is formed, and a connection insertion groove into which an electrical connector fixed to the main circuit board is inserted is formed at one side of the edge of the base, and a surveillance jaw is formed at one side of the edge of the base cover. The pivot connecting shaft of claim 1, wherein the pivot connecting shaft is formed at the inner end of the trunk and the pivot connecting shaft is formed at the inner end of the trunk to prevent the pivot connecting shaft from being detached from the base. It is formed on the outer end of the jaw and the body portion, the rotating body is composed of a locking guide piece which is connected to the rotating body so that the rotating body is rotated integrally in the turning direction and relatively rotated in the inclined direction, the rotating body has both hemispherical members An inclination in which the locking guide piece is inserted by an inner circumferential surface formed on a half-circumferential cutout portion and one side hemispherical member formed at intervals equal to the thickness of the neck of the pivotal connecting shaft and having a diameter smaller than the half-circumferential cutaway portion; Surveillance camera, characterized in that the guide groove is formed. The release preventing ring of claim 4, wherein the release preventing ring has a circular portion, a through hole drilled in the circular portion, and a circumferential diameter extending from the periphery of the through hole and the tip connecting the tip thereof is smaller than the diameter of the release preventing jaw. Surveillance camera, characterized in that formed in the inner end of the pivot connecting shaft a plurality of elastic engaging pieces that are caught on the separation prevention jaw. 5. The monitoring camera according to claim 4, wherein a compression coil spring is inserted between the shaft hole inner surface of the rotating body and the release preventing ring so that the locking guide piece of the rotating shaft comes into close contact with the inclined guide groove of the rotating body. . According to any one of claims 4 to 6, The outer end and the inner end of the compression coil spring is inserted into the inner and outer circumference of the shaft hole of the rotating body by the inner and outer annular projections having different diameters, respectively. Surveillance camera, characterized in that the spring insertion groove is formed. The monitoring camera according to claim 1, wherein a support piece having a support groove into which the camera unit circuit board of the camera unit is inserted is formed on an inner circumferential surface of the pivot. The surveillance camera according to claim 1, wherein the front surface of the camera unit mounting portion of the camera unit is covered with a camera unit cover plate to expose only the objective lens portion of the camera unit. According to claim 1, wherein the inner circumferential surface of the camera mounting portion protruding the support piece having a support groove and inserted into the support plate having a through hole through which the camera unit is penetrated to support the camera unit to be firmly supported Surveillance Camera. The speaker cover and the microphone of claim 1, wherein the speaker and the microphone are inserted into the spaker built-in grooves and the microphone built-in grooves formed at both sides of the pivot, and hook hooking holes are formed around the built-in grooves to cover the speaker cover and the microphone. Surveillance camera, characterized in that the cover is fixed to the built-in groove by inserting the hook formed on the inner surface of the cover to the hook engaging piece.