CN113852744A

CN113852744A - Privacy protection mechanism of camera and camera

Info

Publication number: CN113852744A
Application number: CN202111125946.7A
Authority: CN
Inventors: 喻菊春; 陈允军; 张鑫锋
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2021-12-28
Anticipated expiration: 2041-09-24
Also published as: CN113852744B

Abstract

The application discloses privacy protection mechanism and camera of camera. Based on this application, the end cover lantern ring and the first component that shields can be installed to the casing end cover that has the camera lens window to, through the relative rotation between end cover lantern ring and the casing end cover, can impel first the component that shields to dodge the first gesture of lens window and shelter from the first gesture of shielding of lens window and swing between, thereby, can realize the integration of privacy protection function at the casing end cover of camera, and then help simplifying the required operation process of implementation privacy protection. Moreover, the first radial sliding allowance provided by the hanging and matching of the first shielding element and the end cover lantern ring can realize the direct transmission conversion between the relative rotation of the end cover lantern ring and the swinging of the first shielding element, so that an additional transmission mechanism such as a gear and the like is not needed, the hardware cost is saved, and the assembly process is simplified.

Description

Privacy protection mechanism of camera and camera

Technical Field

The present application relates to privacy protection technologies, and in particular, to a privacy protection mechanism for a camera and a camera using the privacy protection mechanism.

Background

The camera can capture scene information within its field of view and image sequences containing the scene information can be directionally transmitted to a designated device. However, if the camera is invaded by the network, the image sequence of the camera containing the scene information may be stolen, so that the privacy possibly existing in the scene is leaked.

To avoid privacy disclosure, a mask may be used to mask the lens of the camera. In the period that the lens of the camera is shielded, the image sequence output by the camera does not contain any scene information, and at the moment, even if the camera is invaded by a network, the scene information can be prevented from being leaked through the stolen image sequence.

However, the mask is an independent member separate from the camera, and the privacy protection by the mask involves operations such as searching for the mask, taking out the mask, and placing the mask on the camera, which makes the operation process required for privacy protection complicated.

Disclosure of Invention

In the embodiment of the application, a privacy protection mechanism of a camera and a camera applying the privacy protection mechanism are provided, which can support the integration of privacy protection functions in the camera so as to help simplify the operation process required by implementing privacy protection.

A privacy preserving mechanism for a camera provided in one embodiment may include:

a housing end cap having a lens window;

an end cap collar coaxially engaged with the housing end cap, wherein the coaxial engagement allows relative rotation between the end cap collar and the housing end cap in response to an external operation;

the first shielding element is arranged on the shell end cover in a swinging mode and used for responding to the relative rotation to swing between a first avoiding posture for avoiding the lens window and a first shielding posture for shielding the lens window;

wherein a first inter-axis offset is provided between a first swing axis of the first shield element and a rotation axis of the relative rotation;

and, the first shield element is in hooking engagement with the end cap collar, the hooking engagement of the first shield element with the end cap collar configured to: providing the first shield element with a first radial sliding margin relative to the end cap collar in a radial direction of the end cap collar, the first radial sliding margin fitting the first inter-axis offset for eliminating an obstruction of yaw of the first shield element by the first inter-axis offset during the relative rotation.

Optionally, the hooking engagement of the first shield element with the end cap collar forms a movable first hooking fulcrum, wherein during the relative rotation: a first phase position of the first hooking fulcrum in the direction of the relative rotation is limit-constrained to vary synchronously with the end cap collar, so that the first shielding element swings between the first avoidance attitude and the first shielding attitude in response to the variation of the first phase position; a first radial position of the first hooking fulcrum in the radial direction is varied in association with the first phase position by the first radial sliding margin to eliminate an obstruction of the variation of the first phase position by the first inter-axis offset.

Optionally, the end cap collar has a first sliding slot, the first shielding element has a first pivot post slidably inserted in the first sliding slot to form the first hooking fulcrum by the insertion fit of the first pivot post and the first sliding slot; wherein the first phase position is constrained by the first runner restriction to vary synchronously with the end cap collar; and the first sliding groove extends in the radial direction to provide the first radial sliding margin that allows the first radial position to vary in association with the first phase position.

Optionally, the first shading element comprises: the first blocking piece is positioned outside a window range of the lens window when the first shielding element is in the first avoiding posture, and is positioned in the window range of the lens window when the first shielding element is in the first shielding posture; one end of the first deflector rod is connected with the first blocking piece, and the other end of the first deflector rod is provided with the first pivot column.

Optionally, further comprising: a positioning assembly for generating a restraining force that resists the relative rotation when the first shield member is in either of the first avoidance attitude and the first shield attitude.

Optionally, the positioning assembly comprises: the first fixed magnetic attraction element is fixedly arranged at a first reference position of the shell end cover; the second fixed magnetic attraction element is fixedly arranged at a second reference position of the shell end cover; the positioning magnetic attraction element is fixedly arranged on the end cover lantern ring; wherein the first reference position and the second reference position are configured such that: when the first shielding element is in the first avoidance posture, the positioning magnetic attraction element is aligned with the first reference magnetic attraction element so as to generate a first magnetic attraction force serving as the constraint force between the positioning magnetic attraction element and the first reference magnetic attraction element; when the first shielding element is in the first shielding posture, the positioning magnetic attraction element is aligned with the second reference magnetic attraction element so as to generate a second magnetic attraction force serving as the restraining force between the positioning magnetic attraction element and the second reference magnetic attraction element.

Optionally, further comprising: the second shielding element is arranged on the shell end cover in a swinging mode and used for responding to the relative rotation and swinging between a second avoiding posture for avoiding the lens window simultaneously with the first shielding element and a second shielding posture for shielding the lens window together with the first shielding element; wherein a second axial offset is provided between a second pivot axis of the second shield element and the axis of rotation of the relative rotation; and, the second shield element is in hooking engagement with the end cap collar and the hooking engagement of the second shield element with the end cap collar is configured to: providing a second radial sliding margin for the second shield element relative to the end cap collar in the radial direction, the second radial sliding margin fitting the second inter-shaft offset for eliminating an obstruction of yaw of the second shield element by the second inter-shaft offset.

Optionally, the hooking of the first shield element and the end cap collar cooperate to form a movable first hooking fulcrum, wherein during the relative rotation, a first phase position of the first hooking fulcrum in the direction of the relative rotation is limit-constrained to vary synchronously with the end cap collar, such that the first shield element swings between the first avoidance attitude and the first shield attitude in response to a variation in the first phase position; a first radial position of the first hooking fulcrum in the radial direction changes in association with the first phase position by the first radial sliding margin, so as to eliminate an obstacle caused by the first inter-axis offset to the change of the first phase position; the second shielding element and the end cover lantern ring are hooked and matched to form a movable second hooking fulcrum, wherein during the relative rotation, a second phase position of the second hooking fulcrum in the relative rotation direction is limited and restricted to change synchronously with the end cover lantern ring, so that the second shielding element swings between the second avoidance posture and the second shielding posture in response to the change of the second phase position; and a second radial position of the second hooking fulcrum in the radial direction is changed in association with the second phase position by the second radial sliding margin, so as to eliminate an obstacle caused by the second inter-shaft offset to the change of the second phase position.

Optionally, the first shading element in the first shading posture and the second shading element in the second shading posture are complementarily spliced to form a full shading of the lens window; wherein the complementary splices form smooth linear splices.

Optionally, the end cap collar has a first runner and a second runner, the first shield member has a first pivot post, the second shield member has a second pivot post; the first pivoting column is slidably inserted into the first sliding groove, so that the first hanging fulcrum is formed by the insertion fit of the first pivoting column and the first sliding groove; the second pivot column is slidably inserted into the second sliding groove, so that the second hooking supporting point is formed by the insertion fit of the second pivot column and the second sliding groove; wherein the first phase position is constrained by the first runner stop to vary synchronously with the end cap collar and the second phase position is constrained by the second runner stop to vary synchronously with the end cap collar; and the first runner extends in the radial direction to provide the first radial sliding margin that allows the first radial position to vary in association with the first phase position; the second sliding groove extends in the radial direction to provide the second radial sliding margin that allows the second radial position to be varied in association with the second phase position.

Optionally, the first shading element comprises: the first blocking piece is positioned outside a window range of the lens window when the first shielding element is in the first avoidance posture, and is positioned in a first area of the window range of the lens window when the first shielding element is in the first shielding posture; one end of the first deflector rod is connected with the first blocking piece, and the other end of the first deflector rod is provided with the first pivot column; the second shield member includes: a second blocking piece, which is located outside the window range of the lens window when the second shielding element is in the second avoidance posture, and is located in a second area of the window range of the lens window when the second shielding element is in the second shielding posture, wherein the second area is complementary to the first area; and one end of the second deflector rod is connected with the second baffle, and the other end of the second deflector rod is provided with the second pivot column.

In another embodiment, a camera is provided that includes:

a case main body having an end face opening;

an imaging module which is accommodated in the housing main body and has a lens opened toward the end surface; and the number of the first and second groups,

the privacy securing mechanism as claimed in any one of claims 1 to 11, wherein the privacy securing mechanism is mounted to the end opening such that the lens window coincides with a lens field of view of the lens.

Optionally, the casing end cover is fixedly installed on the end face opening; the end cap collar is rotatably mounted in an axial gap between the housing end cap and the end face opening.

Based on the above embodiment, the end cover collar and the first shielding element may be installed on the housing end cover having the lens window, and the first shielding element may be caused to swing between the first avoiding posture avoiding the lens window and the first shielding posture shielding the lens window by the relative rotation between the end cover collar and the housing end cover, thereby realizing the integration of the privacy protection function on the housing end cover of the camera, and further facilitating the simplification of the operation process required for implementing the privacy protection. Moreover, the first radial sliding allowance provided by the hanging and matching of the first shielding element and the end cover lantern ring can realize the direct transmission conversion between the relative rotation of the end cover lantern ring and the swinging of the first shielding element, so that an additional transmission mechanism such as a gear and the like is not needed, the hardware cost is saved, and the assembly process is simplified.

Drawings

The following drawings are only schematic illustrations and explanations of the present application, and do not limit the scope of the present application:

FIG. 1 is a schematic diagram of a privacy preserving mechanism of a camera in one embodiment of the present application;

fig. 2 is a schematic diagram of an equivalent variant of the privacy securing mechanism shown in fig. 1;

FIG. 3 is a schematic diagram of an expanded structure of the privacy preserving mechanism shown in FIG. 1;

FIG. 4 is an exploded view of an example of an expanded configuration of the privacy preserving mechanism shown in FIG. 3;

FIGS. 5a and 5b are inside projection views of the partial assembly structure of the example configuration shown in FIG. 4;

FIGS. 6a and 6b are outside effect views of the partial assembly structure of the example configuration shown in FIG. 4;

FIGS. 7a and 7b are inside projection views of the assembled structure in the example configuration shown in FIG. 4;

FIGS. 8a and 8b are perspective views of the assembled structure of the example configuration shown in FIG. 4;

FIG. 9 is an exploded view of a camera in another embodiment of the present application;

FIGS. 10a and 10b are partial sectional views of the assembled structure of the camera shown in FIG. 9; fig. 11a and 11b are overall external views of the assembly structure of the video camera shown in fig. 9.

Description of the reference numerals

10 case body

100 end face opening

110 clamping convex rib

120 installation boss

130 support boss

20 imaging module

200 lens

210 circuit board

220 lens mounting base

230 photosensitive element

30 casing end cover

300 lens window

310 mounting buckle

320 mounting convex column

350 nesting periphery

360 annular boss

361 first lateral slit

362 second lateral slit

371 first hole seat

372 second hole seat

390 detection hole

40 light-transmitting protective cover

50 end cap collar

510 first lug

511 first chute

512 first caulking groove

520 second lug

521 second runner

522 second caulking groove

530 annular chute

590 hanging column

61 first shading element

610 first baffle

611 first driving lever

612 first pivot post

613 first shaft hole

619 hanging groove

62 second shading element

620 second stop

621 second driving lever

622 second pivot post

623 second axial bore

70 positioning assembly

700 positioning magnetic element

710 first datum magnetic attachment element

720 second reference magnetic attraction element

82 module mounting screw

83 end cover mounting screw

861 first rotating shaft screw

862 second pivot screw

C50 axis of rotation

C61 first axis of oscillation

C62 second axis of oscillation

SP61 first hitching fulcrum

SP62 second hanging fulcrum

PH61 first phase position

PH62 second phase position

RP61 first radial position

RP62 second radial position

TR61 first circular locus

TR62 second circular locus

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below by referring to the accompanying drawings and examples.

Fig. 1 is a schematic diagram of a privacy protecting mechanism of a camera in one embodiment of the present application. Fig. 2 is a schematic diagram of an equivalent modified structure of the privacy securing mechanism shown in fig. 1. Referring to fig. 1 and 2, in this embodiment, the privacy protecting mechanism of the camera may include a housing end cap 30 of the camera, and an end cap collar 50 and a first shielding element 61 that can be mounted to the camera together with the housing end cap 30.

The housing end cap 30 may have a lens window 300, the lens window 300 for exposing a lens view of the camera. For example, the center of the lens window 300 may be coincident with the end cap of the housing end cap 30.

The end cap collar 50 may be coaxially engaged with the casing end cap 30, wherein the coaxial engagement of the end cap collar 50 with the casing end cap 30 may allow for relative rotation between the end cap collar 50 and the casing end cap 30 in response to an external operation. For example, the axis of rotation C50 of relative rotation between the end cap collar 50 and the housing end cap 30 may coincide with the end cap of the housing end cap 30 and the window center of the lens window 300.

The first shielding member 61 is swingably attached to the housing end cap 30, wherein the first shielding member 61 is also in hooking engagement with the end cap collar 50 for swinging between a first avoidance attitude (i.e., an attitude in which the first shielding member 61 is shown in a solid outline in fig. 1 and 2) avoiding the lens window 300 and a first shielding attitude (i.e., an attitude in which the first shielding member 61 is shown in a dashed outline in fig. 1 and 2) shielding the lens window 300 in response to relative rotation between the end cap collar 50 and the housing end cap 30.

Wherein the first pivot axis C61 of the first shield element 61 and the rotation axis C50 of the relative rotation of the end cap collar 50 and the housing end cap 30 have a first axial offset therebetween, i.e. the first shield element 61 and the end cap collar 50 are mounted eccentrically to each other at the housing end cap 50.

Also, as can be seen from fig. 1, since there is a first inter-axial offset between the first swing axis C61 and the rotation axis C50, the first circumferential trajectory TR61 of the first shield element 61 swinging about the first swing axis C61 has a trajectory offset with respect to the circumferential profile of the end cap collar 50, which occurs in the radial direction of the end cap collar 50 (i.e., the radial direction centered on the rotation axis C50), and the trajectory offsets present at different trajectory positions of the first circumferential trajectory TR61 are also different. Therefore, if the first shielding element 61 is fixedly connected to the end cap collar 50, the track offset of the first shielding element 61 relative to the circumferential contour of the end cap collar 50 will hinder the swing of the first shielding element 61.

Accordingly, in this embodiment, the hooking engagement of the first shielding element 61 with the end cap collar 50 is not a fixed hooking with a single degree of freedom, but a movable hooking with a sliding degree of freedom, so as to avoid the first shielding element 61 from being locked with the end cap collar 50 due to the above-mentioned trajectory deviation, i.e., the hooking engagement of the first shielding element 61 with the end cap collar 50 may be configured as:

in the radial direction of the end cap collar 50 (i.e. the radial direction centered on the rotation axis C50), a first radial sliding margin is provided for the first shield element 61 relative to the end cap collar 50, which first radial sliding margin is adapted to the first inter-shaft offset between the first swing axis C61 and the rotation axis C50 for eliminating the obstruction of the swing rotation of the first shield element 61 by the first inter-shaft offset between the first swing axis C61 and the rotation axis C50 during the relative rotation between the end cap collar 50 and the housing end cap 30. That is, the first radial sliding margin is used to compensate for the first inter-axial offset between the first swing axis C61 and the rotation axis C50 to allow the first shield member 61 to swing between a first retracted posture (i.e., the posture in which the first shield member 61 is in solid outline in fig. 1 and 2) retracted from the lens window 300 and a first shielded posture (i.e., the posture in which the first shield member 61 is in dashed outline in fig. 1 and 2) shielding the lens window 300 in response to the relative rotation between the end cap collar 50 and the housing end cap 30.

Based on the above structure, the end cover collar 50 and the first shielding element 61 can be installed on the housing end cover 30 having the lens window 300, and the first shielding element 61 can be caused to swing between the first avoiding posture of avoiding the lens window and the first shielding posture of shielding the lens window by the relative rotation between the end cover collar 30 and the housing end cover 50, so that the integration of the privacy protection function on the housing end cover 30 of the camera is realized, and the operation process required for implementing the privacy protection is facilitated to be simplified. Moreover, the first radial sliding allowance provided by the hooking and matching of the first shielding element 61 and the end cover lantern ring 50 can realize the direct transmission conversion between the relative rotation of the end cover lantern ring 50 and the swinging of the first shielding element 61, so that an additional transmission mechanism such as a gear and the like can be omitted, thereby being beneficial to saving the hardware cost and simplifying the assembly process.

In order to more clearly understand the first radial sliding margin, fig. 1 and 2 show a movable first hitching fulcrum SP61 formed by the hitching engagement of the first shielding member 61 with the end cap collar 50.

The first hooking fulcrum SP61 has a first phase position PH61 in the direction of relative rotation between the end cover collar 50 and the housing end cover 30, and the first phase position PH61 may indicate the angle of rotation of the first hooking fulcrum SP61 in the angular range around the rotation axis C50, and the first phase position PH61 is limit-constrained to vary synchronously with the end cover collar 50 during the relative rotation between the end cover collar 50 and the housing end cover 30, so that the first shielding member 61 can swing between the first retracted posture and the first shielding posture in response to the variation of the first phase position PH61, and the phase variation amount of the first phase position PH61 sufficient to support the first shielding member 61 to swing between the first retracted posture and the first shielding posture is represented as Δ PH61 in fig. 1 and 2.

The first hitch fulcrum SP61 also has a first radial position RP61 in the radial direction of the end cap collar 50, which first radial position RP61 may represent the radial distance of the first hitch fulcrum SP61 relative to the rotation axis C50, and the first radial position RP61 may be varied in relation to the first phase position PH61 with a first radial sliding margin during relative rotation of the end cap collar 50 and the housing end cap 30 to eliminate the obstruction of the variation of the first phase position PH61 by the first axial offset between the first swing axis C61 and the rotation axis C50, in fig. 1 and 2 the first radial position RP61 is sufficient to support the first shield element 61 in the first retracted position, and the associated variation of the swing between the first shielded positions is represented as Δ RP61, i.e. the first radial sliding margin variation is not less than the associated Δ RP 61.

For example, in fig. 1, the end cap collar 50 may have a first slide slot 511, and the first shielding member 61 may have a first pivot post 612, and the first pivot post 612 may be slidably inserted into the first slide slot 511 to form a movable first catching fulcrum SP61 by the insertion-fit of the first pivot post 612 with the first slide slot 511. In this case, the first phase position PH61 may be constrained by the first runner 511 limit to vary synchronously with the end cap collar 50, i.e., the width of the first runner 511 may be the same as the outer diameter of the first pivot post 612; also, the first runner 511 may extend in the radial direction to provide a first radial sliding margin that allows the first radial position RP61 to vary in association with the first phase position PH61, i.e., the first radial sliding margin is determined by the length of the first runner 511, and the length of the first runner 511 is not less than the associated variation Δ RP 61.

To facilitate the arrangement of the first pivot column 612 on the first shielding element 61, the first shielding element 61 may further include a first driving lever 611 in addition to the first blocking piece 610. The first blocking sheet 610 is located outside the window range of the lens window 300 when the first shielding element 61 is in the first avoidance posture, and is located within the window range of the lens window 300 when the first shielding element 61 is in the first shielding posture; one end of the first lever 611 is connected to the first stopper piece 610, and the other end of the first lever 611 may be formed with a first pivot post 612 serving as a first hooking fulcrum SP 61.

Alternatively, the first hitching fulcrum SP61 shown in fig. 1 may be implemented in an equivalent manner as shown in fig. 2, that is, the end cap collar 50 may have a hitching post 590, the first shielding member 61 may have a hitching groove 619, and the hitching groove 619 may be fitted into the hitching post 590, so that the hitching groove 619 is configured as the first hitching fulcrum SP 61. In this case, the first phase position PH61 may be constrained by the hitch post 590 to vary synchronously with the end cap collar 50, i.e., the outer diameter of the hitch post 590 may be the same as the width of the hitch slot 519; also, the hooking post 590 may guide the hooking groove 519 to telescopically slide in response to the first phase position PH61 to provide a first radial sliding margin that allows the first radial position RP61 to change in association with the first phase position PH61, i.e., the first radial sliding margin is determined by a stroke of the hooking post 590 guiding the hooking groove 519 to telescopically and a stroke component of the stroke in a radial direction of the end cap collar 50 is not less than the associated change amount Δ RP 61.

Similarly to fig. 1, in order to facilitate the arrangement of the hooking groove 619 in the first shielding member 61, the first shielding member 61 may further include a first driving lever 611 ' in addition to the first blocking piece 610, one end of the first driving lever 611 ' may be connected to the first blocking piece 610, and the other end of the first driving lever 611 ' may be formed with a hooking post 619 serving as a first hooking fulcrum SP 61.

As described above, if the first radial sliding margin is set to be equal to the associated variation Δ RP61 or slightly greater than the associated variation Δ RP61 for the purpose of tolerating the preset tolerance range, the swing stroke of the first shielding element 61 may be constrained within the swing range between the first avoidance posture and the first shielding posture to prevent the first shielding element 61 from over-swinging.

In order to stabilize the first shield member 61 when it reaches the first retracted position or the first shielding position to avoid the first shield member from being erroneously deflected by an external factor such as a shock, the privacy protecting mechanism in this embodiment may further include a positioning member 70, and the positioning member 70 may be configured to generate a restraining force that hinders relative rotation between the end cover collar 50 and the housing end cover 30 when the first shield member 61 is in any one of the first retracted position and the first shielding position.

For example, the restraining force generated by the positioning component 70 may be a rigid stress or an elastic stress based on physical contact, or may be a coupling stress (e.g., a magnetic attraction force) based on non-contact. Since the restraining force has a plurality of alternative stress forms, there are also a plurality of corresponding options for the physical form of the positioning element 70, for which reason the positioning element 70 is virtually represented in figures in the form of a lock in fig. 1 and 2.

In addition, the privacy securing mechanism in this embodiment may independently complete the single-piece full-blocking of the lens window 300 only by using the first shielding element 61 in the first shielding posture, if so, the area of the first blocking piece 610 of the first shielding element 61 needs to be not smaller than the hollow area of the lens window 300, thereby causing the phase variation amount, denoted as Δ PH61, of the first phase position PH61 sufficient to support the first shielding element 61 swinging between the first avoiding posture and the first shielding posture to be large, and indirectly causing the associated variation amount Δ RP61 of the first radial position RP61 associated with the first phase position PH61 to be large, so that, in order to allow the large associated variation amount Δ RP61, the housing end cap 30 and the end cap collar 50 need to provide a large radial space, that is, the housing end cap 30 and the end cap collar 50 need to have a large radial size, and further, the overall radial size of the privacy securing mechanism is large, even leading to an overall radial size enlargement of the camera.

Therefore, in order to facilitate a miniaturized design of the overall radial dimensions of the privacy securing mechanism and the camera, a configuration of a double shielding element may be employed in this embodiment.

Fig. 3 is a schematic diagram of an extended structure of the privacy securing mechanism shown in fig. 1. Referring to fig. 3, in this embodiment, the privacy protecting mechanism may further include a second shield member 62.

The second shielding element 62 is swingably attached to the housing end cap 30, wherein the second shielding element 62 is also adapted to be hooked to the end cap collar 50 for swinging between a second retracted posture (i.e. the posture of the second shielding element 62 indicated by the solid outline in fig. 3) for retracting the lens window 300 simultaneously with the first shielding element 61, and a second shielding posture (i.e. the posture of the second shielding element 62 indicated by the dashed outline in fig. 3) for shielding the lens window 300 together with the first shielding element 61.

Wherein the second pivot axis C62 of the second shield member 62 and the rotation axis C50 of the relative rotation of the housing end cap 30 and the end cap collar 50 have a second inter-axis offset therebetween, the direction of the second inter-axis offset may be different from the direction of the first inter-axis offset between the first pivot axis C61 and the rotation axis C50, and the offset distance of the second inter-axis offset may be the same as or different from the offset distance of the first inter-axis offset.

Similar to the first shield member 61, the hooking engagement of the second shield member 62 with the end cap collar 50 may be configured to: in the radial direction of the end cap collar 50 (i.e. the radial direction centered on the rotation axis C50), a second radial sliding margin is provided for the second shield element 62 relative to the end cap collar 50, which second radial sliding margin is adapted to the second inter-shaft offset between the second swing axis C62 and the rotation axis C50 for eliminating the hindrance of the swing of the second shield element 62 by the second inter-shaft offset between the second swing axis C62 and the rotation axis C50. That is, the second radial sliding margin is used to compensate for the second axial offset between the second swing axis C62 and the rotation axis C50 to allow the second shield member 62 to swing between a second retracted posture (i.e., the posture in which the second shield member 62 is in solid outline in fig. 3) that is retracted from the lens window 300, and a second shielded posture (i.e., the posture in which the second shield member 62 is in dashed outline in fig. 3) that shields the lens window 300, in response to the relative rotation between the end cap collar 50 and the housing end cap 30.

Fig. 3 shows a movable second hooking fulcrum SP62 formed by hooking engagement of the second shielding member 62 with the end cap collar 50, in addition to the same first hooking fulcrum SP61 as in fig. 1.

Second hitch fulcrum SP62 has a second phase position PH62 in the direction of relative rotation of end cap collar 50 and housing end cap 30, which second phase position PH62 may represent the angle of rotation of second hitch fulcrum SP62 in a range of angles about rotational axis C50, and during relative rotation of end cap collar 50 and housing end cap 30, which second phase position PH62 is captively constrained to vary synchronously with end cap collar 50 to enable second shield member 62 to swing between a second retracted position and a second shielded position in response to a change in second phase position PH62, which second phase position PH62 is sufficient to support second shield member 62 to swing between the second retracted position and the second shielded position in fig. 3 by a phase change amount Δ PH 62.

The second hitch fulcrum SP62 also has a second radial position RP62 in the radial direction of the end cap collar 50, the second radial position RP62 may represent the radial distance of the second hitch fulcrum SP62 relative to the rotation axis C50, and the second radial position RP62 may be varied in association with the second phase position PH62 with a second radial sliding margin during relative rotation of the end cap collar 50 and the housing end cap 30 to eliminate an obstruction of the variation of the second phase position PH62 caused by the second axial offset between the second swing axis C62 and the rotation axis C50 resulting from the trajectory offset of the second circumferential trajectory TR62 of the second shield member 62 about the second swing axis C62 relative to the circumferential contour of the end cap collar 50, the second radial position RP62 being sufficient in fig. 3 to support the association of the second shield member 62 between the second retracted attitude and the second shielded attitude as Δ RP62, that is, the second radial slip margin is not less than the associated variation Δ RP 62.

For example, in fig. 3, the end cap collar 50 may have a second slide slot 521 spaced apart from the first slide slot 511, and the second shielding member 62 may have a second pivot post 622, the second pivot post 622 being slidably inserted into the second slide slot 521 to form a movable second hooking fulcrum SP62 by the insertion-fit of the second pivot post 622 and the second slide slot 521. In this case, the second phase position PH62 may be constrained by the second runner 521 to vary synchronously with the end cap collar 50, i.e., the width of the second runner 521 may be the same as the outer diameter of the second pivot post 622; also, the second link 521 may extend in the radial direction to provide a second radial sliding margin that allows the second radial position RP62 to be varied in association with the second phase position PH62, that is, the second radial sliding margin is determined by the length of the second link 521, and the length of the second link 521 is not less than the associated variation Δ RP 62.

Similar to the first shielding member 61, in order to facilitate the arrangement of the second pivot post 622 on the second shielding member 62, the second shielding member 62 may further include a second lever 621 in addition to the second shutter piece 620. The second blocking sheet 620 is located outside the window range of the lens window 300 when the second shielding element 62 is in the second avoidance posture, and is located within the window range of the lens window 300 when the second shielding element 62 is in the second shielding posture; one end of the second lever 621 is connected to the second stopper 620, and the other end of the second lever 621 may be formed with a second pivot post 622 serving as a second hooking fulcrum SP 62.

It should be understood that, as the implementation form of the second hooking fulcrum SP62 shown in fig. 3, the equivalent substitution of the form of the first hooking fulcrum SP61 in fig. 2 may also be referred to, and the description thereof is omitted here.

In this embodiment, the second avoidance posture of the second shield member 62 is a posture synchronized with the first avoidance posture of the first shield member 61, and the second shield posture of the second shield member 62 is a posture synchronized with the first shield posture of the first shield member 61, so that:

when the first shield member 61 is in the first, retracted position (i.e., the position in which the first shield member 61 is in solid outline in fig. 3), the second shield member 62 is in a second, retracted position clear of the lens window 300 in response to relative rotation between the end cap collar 50 and the housing end cap 30;

when the first shield member 61 is in the first shield attitude (i.e., the attitude in which the first shield member 61 is located as indicated by the dashed outline in fig. 3), the second shield member 62 is in the second shield attitude in which it shields the lens window 300 in cooperation with the first shield member 61 in response to the relative rotation between the end cap collar 50 and the housing end cap 30.

Since the lens view window 300 can be shielded by the first shielding member 61 and the second shielding member 62, neither the area of the first blocking piece 610 of the first shielding member 61 nor the area of the second blocking piece 620 included in the second shielding member 62 is necessarily smaller than the hollow area of the lens view window 300, and thus the phase variation Δ PH61 of the first phase position PH61 and the phase variation Δ PH62 of the second phase position PH62 can be allowed to be smaller than the case of full shielding of a single piece, so as to help reduce the associated variation Δ RP61 of the first radial position RP61 associated with the first phase position PH61 and the associated variation Δ RP62 of the second radial position RP62 associated with the second phase position PH62, and thus, the casing end cover 30 and the end cover collar 50 can be allowed to provide a smaller radial space, so as to help reduce the radial sizes of the casing end cover 30 and the end cover collar 50, and further, contribute to the miniaturization of the overall radial dimensions of the privacy securing mechanism and the camera.

Moreover, the extended configuration shown in FIG. 3 also supports the positioning assembly 70 arrangement shown in FIGS. 1 and 2.

In order to more intuitively understand the privacy securing mechanism in the above embodiments, a description will be further made below with reference to an example mode of the privacy securing mechanism.

Fig. 4 is an exploded view of an example of the extended structure of the privacy securing mechanism shown in fig. 3. Fig. 5a and 5b are inside projection views of the partial assembly structure in the example configuration shown in fig. 4. Fig. 6a and 6b are external side effect views of the partial assembly structure of the example form shown in fig. 4. Fig. 7a and 7b are inside projection views of the assembled structure in the example form shown in fig. 4. Fig. 8a and 8b are perspective views of an assembly structure in the example form shown in fig. 4. Please refer to fig. 4, in conjunction with fig. 5a and 5b, fig. 6a and 6b, fig. 7a and 7b, and fig. 8a and 8 b:

the edge of the casing end cap 30 has an axially projecting nesting flange 350 and the edge of the end cap collar 50 on the side facing the casing end cap 30 has an annular slide groove 530, such that when the casing end cap 30 is axially abutted with the end cap collar 50, the nesting flange 350 is received in the annular slide groove 530 to effect a coaxial fit for relative rotation between the end cap collar 50 and the casing end cap 30;

the first shielding element 61 may have a first shaft hole 613 located at the connection position of the first stopping piece 610 and the first driving lever 611, and a first rotating shaft screw 861 may pass through the first shaft hole 613 to be fixed to the housing end cover 30, so as to determine the hole center axis of the first shaft hole 613 as the first swing axis C61 of the first shielding element 61; similarly, the second shielding member 62 may have a second shaft hole 623 located at a junction of the second shutter 620 and the second lever 621, and a second shaft screw 862 may be fixed to the housing end cover 30 through the second shaft hole 623 to determine a hole center axis of the second shaft hole 623 as a second swing axis C62 of the second shielding member 62.

The inner circumference of the end cap collar 50 may have a first lug 510 and a second lug 520, a first slide groove 511 for providing a first radial sliding margin being located at the first lug 510, and a second slide groove 521 for providing a second radial sliding margin being located at the second lug 520;

the housing end cap 30 further has an annular boss 360 axially protruding at the edge of the lens window 300, and a first lateral gap 361 for allowing the first shielding element 61 to swing and pass and a second lateral gap 362 for allowing the second shielding element 62 to swing and pass are formed in a sidewall of the annular boss 360, so that the first shielding element 361 and the second shielding element 362 which swing and rotate can be isolated from the lens aligned with the lens window 300 by the annular boss 360, and the first shielding element 361 and the second shielding element 362 are prevented from mistakenly hitting the lens in the swinging and rotating process.

Moreover, the first blocking piece 610 of the first shielding member 61 and the second blocking piece 620 of the second shielding member 62 are configured to have complementary shapes, and in this example form, the first blocking piece 610 and the second blocking piece 620 each have an approximately semicircular shape, so that the first shielding element 61 in the first shielding posture and the second shielding element 62 in the second shielding posture are complementarily spliced to form a full shielding of the lens window 300.

For example, the first blocking piece 610 is located in a first region of the window range of the lens window 300 when the first shielding element 61 is in the first shielding posture, and the second blocking piece 620 is located in a second region of the window range of the lens window 300, which is complementary to the first region, when the second shielding element 62 is in the second shielding posture.

Preferably, the complementary splicing of the first shielding member 61 and the second shielding member 62 may form a smooth linear splice, for example, the first blocking piece 610 and the second blocking piece 620 may have straight edges for splicing with each other, and the straight edges of the first blocking piece 610 and the second blocking piece 620 may be interfitted in the thickness direction to avoid an error gap in splicing due to a processing error.

Moreover, referring to fig. 6b in particular, the surfaces of the first shielding element 61 and the second shielding element 62 facing the lens window 300 may be printed with a prompt message (e.g., a graphical prompt message), so that when the first shielding element 61 and the second shielding element 62 together shield the lens window 300, the prompt message may be presented through the lens window 300, so as to generate a visual sensory effect different from that of the exposed lens window 300.

In this example configuration, the positioning assembly 70 shown in fig. 1 and 2 can include a first reference magnetic element 710, a second reference magnetic element 720, and a positioning magnetic element 700, wherein:

the first fixed magnetic attracting element 710 may be fixedly installed at a first reference position of the casing end cover 30, for example, the first fixed magnetic attracting element 710 may be installed in pairs in a pair of first hole seats 371 provided at the first reference position of the casing end cover 30 and at a diagonal mirror-image position of the first reference position with respect to the rotation axis C50;

the second magnetic reference attraction member 720 may be fixedly installed at a second reference position of the housing end cover 30, for example, the second magnetic reference attraction member 720 may be installed in a pair of second hole seats 372 arranged at the second reference position of the housing end cover 30 and at a diagonal mirror position of the second reference position with respect to the rotation axis C50;

the positioning magnetic element 700 may be fixedly mounted on the end cap collar 30, for example, the positioning magnetic element 700 may be mounted in pairs in a first slot 512 further included in the first lug 510 and a second slot 522 further included in the second lug 520.

And, the above-mentioned first reference position and second reference position are configured such that:

when the first shielding element 61 is in the first avoidance posture (the second shielding element is in the second avoidance posture at this time), the positioning magnetic attraction element 700 aligns with the first reference magnetic attraction element 710 to generate a first magnetic attraction force between the positioning magnetic attraction element 700 and the first reference magnetic attraction element 710, and the first magnetic attraction force serves as a restraining force for obstructing the relative rotation between the end cover collar 50 and the housing end cover 30;

when the first shield member 61 is in the first shield attitude (the second shield member is now in the second shield attitude), the positioning magnetic attraction member 700 is aligned with the second reference magnetic attraction member 720 to generate a second magnetic attraction force between the positioning magnetic attraction member 700 and the second reference magnetic attraction member 720, which now serves as a restraining force that hinders relative rotation between the end cap collar 50 and the housing end cap 30.

For example, the first reference magnetic attraction element 710 and the second reference magnetic attraction element 720 can be magnetic elements having a first polarity, and the positioning magnetic attraction element 700 can be magnetic elements having a second polarity opposite to the first polarity; alternatively, the first reference magnetic element 710 and the second reference magnetic element 720 may be magnetic elements with any polarity, and the positioning magnetic element 700 may be a metal element (e.g., a ferrous element) sensitive to magnetic force; alternatively, the first reference magnetic element 710 and the second reference magnetic element 720 can be selected from a metal element (e.g., a ferrous element) sensitive to magnetic force, and the positioning magnetic element 700 can be selected from a magnetic element with any polarity.

It is understood that, as an alternative, the first reference magnetic attraction element 710 and the second reference magnetic attraction element 720 may be fixed on the end cover collar 50 instead, and the positioning magnetic attraction element 700 may be fixed on the housing end cover 30 instead, which may also generate the positioning effect based on the magnetic attraction force.

Fig. 9 is an exploded view of a camera according to another embodiment of the present application. Fig. 10a and 10b are partial sectional views of the assembly structure of the video camera shown in fig. 9. Referring to fig. 9 in conjunction with fig. 10a and 10b, the camera in this embodiment may include a housing main body 10, an imaging module 20, and the privacy protecting mechanism in the foregoing embodiments. Fig. 9, 10a and 10b show the privacy securing member in the above embodiment in the example form shown in fig. 4.

The casing main body 10 has an end face opening 100, that is, the casing main body 10 has a hollow shell cavity, and the shell cavity has an opening at an end face of the casing main body 10, the opening being the end face opening 100 of the casing main body 10.

The imaging module 20 is accommodated in the cabinet main body 10, and the imaging module 20 may have a lens 200 facing the end face opening 100. For example, the imaging module 20 may include a circuit board 210 and a lens mount 220 mounted on the circuit board 210, wherein the circuit board 210 may have a photosensitive element 230 such as a CMOS (Complementary Metal Oxide Semiconductor) or a CCD (Charge Coupled Device), the lens mount 220 may be mounted on the circuit board 210 in a region where the photosensitive element 230 is located, and the lens 200 may be mounted on the lens mount so that a lens field can be projected on a photosensitive surface of the photosensitive element. Also, as shown in fig. 10a and 10b, the cabinet main body may have a support boss 130 inside thereof, and the circuit board 210 may be fixed to the support boss 130 by the module mounting screw 82, so that the imaging module 20 may be fixedly mounted in the cabinet main body 10.

The case cover 20 may be fixedly installed on the end opening 100 of the case body 10. For example, as can be seen from fig. 9 and 10a, the cabinet main body 10 may have a snap-fit rib 110 at the end face opening 100, and the cabinet end cover 20 may have a mounting catch 310 for snap-fit engagement with the snap-fit rib 110; as can be seen from fig. 9 and 10b, the casing main body 10 may further have a mounting boss 120 at the end opening 100, and the casing end cover 20 may further have a mounting boss 320 fixedly connected to the mounting boss 120 by an end cover mounting screw 83, where the height of the mounting boss 320 may enable an axial gap to be formed between the casing end cover 20 and the casing main body 10.

Accordingly, the end cover collar 50 coaxially fitted with the casing end cover 20 can be rotatably fitted in the axial gap between the casing end cover 20 and the end face opening 100 of the casing main body 10, at which time the end cover collar 50 can be used as a knob for triggering switching in response to an external operation.

In addition, the side of the case end cap 20 opposite to the end cap collar 50 and the case body 10 may be covered with a transparent protective cover 40 made of a transparent material such as glass.

Fig. 11a and 11b are overall external views of the assembly structure of the video camera shown in fig. 9.

Referring to fig. 11a, if the end cap collar 50 is subjected to a first external operation OP1 when the lens field of view 300 is exposed, the end cap collar 50 overcomes a first magnetic attraction force generated between the positioning magnetic element 700 and the first reference magnetic element 710, and rotates relatively with respect to the housing end cap 30 in a first direction; during the relative rotation of the end cap collar 50 in the first direction, the first sliding slot 511 drives the first pivot column 612 to move, and the second sliding slot 521 drives the second pivot column 622 to move, so as to drive the first shielding member 61 and the second shielding member 62 to swing, so that the first shielding member 61 and the second shielding member 62 form a full shielding for the lens window 300 in a complementary splicing manner, that is, the lens 200 facing the lens window 300 is shielded. At this time, by positioning the second magnetic attraction force generated between the magnetic attraction element 700 and the second reference magnetic attraction element 720, the first shielding member 61 and the second shielding member 62 can keep shielding the lens window 300;

referring to fig. 11b, if the end cap collar 50 receives a second external operation OP2 opposite to the first external operation OP1 when the lens field of view 300 is blocked, the end cap collar 50 overcomes a second magnetic attraction force generated between the positioning magnetic attraction element 700 and the second reference magnetic attraction element 720, and rotates relatively to the case end cap 30 in a second direction opposite to the first direction; in the process of relative rotation of the end cap collar 50 in the second direction, the first sliding slot 511 drives the first pivot column 612 to move, and the second sliding slot 521 drives the second pivot column 622 to move, so as to drive the first shielding member 61 and the second shielding member 62 to swing, so that the first shielding member 61 and the second shielding member 62 synchronously avoid the lens window 300, and the lens 200 facing the lens window 300 is restored to the exposed state. At this time, the first shielding member 61 and the second shielding member 62 can be kept to escape from the lens window 300 by the first magnetic attraction force generated between the positioning magnetic element 700 and the first reference magnetic element 710.

In addition, the camera may further include a photoelectric detection switch, and the housing end cover 30 may further be provided with a detection hole 390, when the first shielding member 61 and the second shielding member 62 form a full shielding to the lens window 300 in a complementary splicing manner, a light path between the photoelectric detection switch and the detection hole 390 is blocked; when the first shielding member 61 and the second shielding member 62 retreat from the lens window 300, the optical path between the photodetection switch and the detection hole 390 is conducted. Therefore, the photoelectric detection switch can determine the open/close state of the lens window 300 according to the light path state, and trigger the imaging module 20 to sleep when the lens window 300 is shielded, and start the imaging module 20 when the lens window 300 is opened.

In addition, it is understood that the end cover collar 50 may be alternatively fixedly mounted to the end opening 100 of the housing body 10 and allow the housing end cover 20 to rotate.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A privacy preserving mechanism for a camera, comprising:

a housing end cap (30), the housing end cap (30) having a lens window (300);

an end cap collar (50), the end cap collar (50) co-axially cooperating with the housing end cap (30), wherein the co-axial cooperation allows relative rotation between the end cap collar (50) and the housing end cap (30) in response to an external operation;

the first shielding element (61) is arranged on the shell end cover (30) in a swinging mode, wherein the first shielding element (61) is in hanging fit with the end cover lantern ring (50) and used for responding to the relative rotation to swing between a first avoiding posture for avoiding the lens window (300) and a first shielding posture for shielding the lens window (300);

wherein the first swing axis (C61) of the first shield element (61) and the axis of rotation (C50) of the relative rotation have a first inter-axial offset therebetween;

and the hooking engagement of the first shield element (61) with the end cap collar (50) is configured to: -providing the first shield element (61) with a first radial sliding margin relative to the end cap collar (50) in a radial direction of the end cap collar (50), the first radial sliding margin being adapted to the first inter-axis offset for eliminating an obstruction of the yaw of the first shield element (61) by the first inter-axis offset during the relative rotation.

2. The privacy protection mechanism of claim 1,

the hooking cooperation of the first shield element (61) with the end cap collar (50) forms a movable first hooking fulcrum (SP61), wherein during the relative rotation:

a first phase position (PH61) at which the first hitch fulcrum (SP61) is located in the direction of relative rotation is limit-constrained to vary synchronously with the end cap collar (50) such that the first shield element (61) swings between the first avoidance attitude and the first shield attitude in response to a variation in the first phase position (PH 61);

a first radial position (RP61) of the first hitch fulcrum (SP61) in the radial direction is varied in relation to the first phase position (PH61) with the first radial sliding margin to eliminate an obstruction of the variation of the first phase position (PH61) by the first inter-axis offset.

3. The privacy protection mechanism of claim 2,

the end cap collar (50) has a first slide groove (511), the first shielding member (61) has a first pivot column (612), the first pivot column (612) is slidably inserted in the first slide groove (511) to form the first hooking fulcrum (SP61) by the insertion fit of the first pivot column (612) and the first slide groove (511);

wherein the first phase position (PH61) is constrained by the first runner (511) limit to vary synchronously with the end cap collar (50);

and the first runner (511) extends in the radial direction to provide the first radial sliding margin allowing the first radial position (RP61) to vary in association with the first phase position (PH 61).

4. The privacy securing mechanism according to claim 3, wherein the first shield member (61) comprises:

a first blocking tab (610), the first blocking tab (610) being located outside a window range of the lens window (300) when the first shield element (61) is in the first avoidance posture, and being located within the window range of the lens window (300) when the first shield element (61) is in the first shield posture;

one end of the first driving lever (611) is connected with the first blocking piece (610), and the other end of the first driving lever (611) is provided with the first pivot column (612).

5. The privacy securing mechanism of claim 1, further comprising:

a positioning assembly (70), the positioning assembly (70) being configured to generate a restraining force that resists the relative rotation when the first shield member (61) is in either of the first retracted position and the first shield position.

6. The privacy securing mechanism of claim 5, wherein the positioning component (70) comprises:

the first datum magnetic attraction element (710), the first fixed magnetic attraction element (710) is fixedly arranged at a first reference position of the shell end cover (30);

a second datum magnetic element (720), wherein the second fixed magnetic element (720) is fixedly arranged at a second reference position of the casing end cover (30);

a positioning magnetic element (700), wherein the positioning magnetic element (700) is fixedly arranged on the end cover lantern ring (30);

wherein the first reference position and the second reference position are configured such that:

when the first shielding element (61) is in the first avoidance posture, the positioning magnetic attraction element (700) is aligned with the first reference magnetic attraction element (710) to generate a first magnetic attraction force serving as the restraining force between the positioning magnetic attraction element (700) and the first reference magnetic attraction element (710);

when the first shielding element (61) is in the first shielding posture, the positioning magnetic attraction element (700) is aligned with the second reference magnetic attraction element (720) so as to generate a second magnetic attraction force serving as the restraining force between the positioning magnetic attraction element (700) and the second reference magnetic attraction element (720).

7. The privacy securing mechanism of claim 1, further comprising:

a second shielding member (62), the second shielding member (62) being swingably attached to the housing end cover (30) for swinging between a second avoidance attitude for simultaneously avoiding the lens window (300) with the first shielding member (61) and a second shielding attitude for shielding the lens window (300) together with the first shielding member (61) in response to the relative rotation;

wherein the second swing axis (C62) of the second shield element (62) has a second inter-axial offset from the axis of rotation (C50) of the relative rotation;

and the second shield element (62) is in hooking engagement with the end cap collar (50), and the hooking engagement of the second shield element (62) with the end cap collar (50) is configured to: -providing the second shield element (62) with a second radial sliding margin relative to the end cap collar (50) in the radial direction, the second radial sliding margin being adapted to the second inter-axial offset for eliminating an obstruction of the yaw of the second shield element (62) by the second inter-axial offset.

8. The privacy protection mechanism of claim 7,

the hooking cooperation of the first shield element (61) with the end cap collar (50) forms a movable first hooking fulcrum (SP61), wherein during the relative rotation: a first phase position (PH61) at which the first hitch fulcrum (SP61) is located in the direction of relative rotation is limit-constrained to vary synchronously with the end cap collar (50) such that the first shield element (61) swings between the first avoidance attitude and the first shield attitude in response to a variation in the first phase position (PH 61); and a first radial position (RP61) of the first hitch fulcrum (SP61) in the radial direction is varied in association with the first phase position (PH61) with the first radial sliding margin to eliminate an obstruction of the variation of the first phase position (PH61) by the first inter-axis offset;

the hooking engagement of the second shield element (62) with the end cap collar (50) forms a movable second hooking fulcrum (SP62), wherein during the relative rotation: a second phase position (PH62) in which the second hitch fulcrum (SP62) is located in the direction of relative rotation is limit-constrained to vary synchronously with the end cap collar (50) such that the second shield element (62) swings between the second avoidance attitude and the second shield attitude in response to a variation in the second phase position (PH 62); and a second radial position (RP62) of the second hitch fulcrum (SP62) in the radial direction is varied in association with the second phase position (PH62) with the second radial sliding margin to eliminate an obstruction of the variation of the second phase position (PH62) by the second inter-shaft offset.

9. The privacy protection mechanism of claim 8,

the first shading element (61) in the first shading posture and the second shading element (62) in the second shading posture are complementarily spliced to form a full shading of the lens window (300);

wherein the complementary splices form smooth linear splices.

10. The privacy protection mechanism of claim 8,

the end cap collar (50) having a first runner (511) and a second runner (521), the first shield member (61) having a first pivot post (612), the second shield member (62) having a second pivot post (622);

the first pivot column (612) is slidably inserted into the first sliding groove (511) to form the first hooking fulcrum (SP61) by the insertion fit of the first pivot column (612) and the first sliding groove (511);

the second pivot column (622) is slidably inserted into the second sliding groove (521) to form the second hanging fulcrum (SP62) by the insertion fit of the second pivot column (622) and the second sliding groove (521);

wherein the first phase position (PH61) is constrained by the first runner (511) to vary synchronously with the end cap collar (50), and the second phase position (PH62) is constrained by the second runner (521) to vary synchronously with the end cap collar (50);

and, the first runner (511) extends in the radial direction to provide the first radial sliding margin allowing the first radial position (RP1) to vary in association with the first phase position (PH 61); the second runner (521) extends in the radial direction to provide the second radial sliding margin allowing the second radial position (RP2) to vary in association with the second phase position (PH 62).

11. The privacy protection mechanism of claim 10,

the first shield element (61) comprises: a first blocking flap (610), the first blocking flap (610) being located outside a window range of the lens window (300) when the first shield element (61) is in the first avoidance posture, and being located within a first area of the window range of the lens window (300) when the first shield element (61) is in the first shield posture; the first driving lever (611), one end of the first driving lever (611) is connected with the first baffle (610), and the other end of the first driving lever (611) is provided with the first pivot column (612);

the second shield element (62) comprises: a second blocking tab (620), the second blocking tab (620) being located outside the window extent of the lens window (300) when the second shield element (62) is in the second retracted position, and being located within a second region of the window extent of the lens window (300) when the second shield element (62) is in the second shielded position, the second region being complementary to the first region; and one end of the second driving lever (621) is connected with the second baffle (620), and the other end of the second driving lever (621) is provided with the second pivot column (622).

12. A camera, comprising:

a cabinet main body (10), the cabinet main body (10) having an end face opening (100);

an imaging module (20), the imaging module (20) being housed within the cabinet main body (10), and the imaging module (20) having a lens (200) that faces the end face opening (100); and the number of the first and second groups,

the privacy securing mechanism as claimed in any one of claims 1 to 11, wherein the privacy securing mechanism is mounted to the end opening (100) such that the lens window (300) coincides with a lens field of view of the lens (200).

13. The camera of claim 12,

the shell end cover (20) is fixedly arranged on the end face opening (100);

the end cap collar (50) is rotatably mounted in an axial gap between the housing end cap (20) and the end face opening (100).