CN210958503U - Flexible ring and camera shooting assembly with same - Google Patents

Abstract

The utility model discloses a flexible circle for the installation of camera, flexible circle is for having electrically conductive piece, and flexible circle includes body and through-hole, and the through-hole is seted up in the body and is used for wearing to establish of camera, and the inner wall of through-hole is used for respectively with the conductive lens of camera and the conductive shell looks butt of camera. Specifically, when the flexible circle is used for the installation of camera, the through-hole is worn to locate by the camera, and the electrically conductive camera lens and the electrically conductive shell of camera respectively with the inner wall looks butt of through-hole for electrically conductive camera lens passes through the flexible circle and is connected with electrically conductive shell electricity. When the conductive lens of the camera adopts an active alignment focusing process, static electricity on the conductive lens is conducted to the conductive shell through the flexible ring, and the conductive shell is conducted with the PCB, so that the static electricity is released in a grounding manner, the influence of the static electricity on a sensor of the camera is avoided, and the image quality of the camera is ensured.

Description

Flexible ring and camera shooting assembly with same

Technical Field

The utility model relates to a camera technical field especially relates to a flexible circle. The utility model discloses still relate to a subassembly of making a video recording.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

When the camera is installed, a rubber ring is usually arranged at the installation position, and the gap of the installation position of the camera can be prevented from being water or the camera can be damped by the rubber ring.

The camera comprises a conductive lens and a sensor, wherein the conductive lens and the sensor are arranged at intervals, and the interval distance between the conductive lens and the sensor is small. When the conductive lens of the camera adopts an active alignment focusing process, because the conductive lens cannot be effectively grounded, when static electricity contacts the conductive lens, the static electricity can break down air between the conductive lens and the sensor to influence the work of the sensor, thereby causing the phenomenon of stripes or screen flashing of images.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of the effective grounding of the conductive lens of the camera at least. The purpose is realized by the following technical scheme:

the utility model discloses the first aspect provides a flexible circle for the installation of camera, flexible circle is for having electrically conductive, flexible circle includes:

a body;

the through hole is opened in the body and is used for the camera to wear to establish, the inner wall of through hole be used for respectively with the electrically conductive camera lens of camera with the electrically conductive shell looks butt of camera.

According to the utility model discloses a flexible circle, when flexible circle is used for the camera, the through-hole is worn to locate by the camera, the conductive lens of camera and electrically conductive shell respectively with the inner wall looks butt of through-hole for electrically conductive lens is connected through flexible circle and electrically conductive shell electricity. When the conductive lens of the camera adopts an active alignment focusing process, static electricity on the conductive lens is conducted to the conductive shell through the flexible ring, and the conductive shell is conducted with the PCB, so that the static electricity is released in a grounding manner, the influence of the static electricity on a sensor of the camera is avoided, and the image quality of the camera is ensured.

In addition, according to the utility model discloses a flexible circle still can have following additional technical characterstic:

in some embodiments of the present invention, the through hole includes a first hole section and a second hole section, the first inner wall of the first hole section is used for interference fit with the conductive lens, and/or the second inner wall of the second hole section is used for interference fit with the conductive shell.

In some embodiments of the present invention, the flexible ring further includes a protruding structure, the protruding structure is formed on the first inner wall and extends to the radial inner side of the first hole section, the protruding structure is used for connecting with the conductive lens adapter.

In some embodiments of the present invention, the protruding structure is a first annular rib, and the first annular rib and the first hole section are coaxially disposed.

The utility model discloses an in some embodiments, flexible circle is still including setting up sealing end face on the body, sealing end face is located the terminal surface department in the drill way of first hole section, sealing end face is used for sealing the installation gap of camera.

In some embodiments of the present invention, the flexible ring further includes a sealing structure, the sealing structure is a second annular rib, the second annular rib is disposed on the sealing end surface and coaxially disposed with the through hole, and the second annular rib is close to the edge of the body.

In some embodiments of the present invention, the flexible ring further comprises a positioning structure disposed on the outer surface of the body, and the positioning structure is used for positioning and installing the camera.

In some embodiments of the present invention, the flexible ring is a conductive rubber member.

The utility model discloses the second aspect provides a subassembly of making a video recording, the subassembly of making a video recording includes:

the camera comprises a conductive lens, a sensor and a conductive shell with an assembly opening, wherein the sensor is arranged in the conductive shell, part of the structure of the conductive lens penetrates through the assembly opening, and the conductive lens and the conductive shell are arranged at intervals;

a flexible loop, the mounting being as described above.

In some embodiments of the present invention, the image capturing assembly further includes a fixing adhesive, which is an insulating adhesive and is sandwiched between the conductive shell and the conductive lens;

the flexible ring is sleeved on the outer side of the camera in an interference mode, part of the structure of the conductive lens, far away from one side of the conductive shell, protrudes out of the flexible ring, the protruding structure of the flexible ring is embedded into the groove structure on the outer surface of the conductive lens, and part of the structure of the conductive shell, far away from one side of the conductive lens, protrudes out of the flexible ring;

the camera is positioned and installed at an installation position through the positioning structure of the flexible ring, and an installation gap is sealed through the sealing end face of the flexible ring and the sealing structure of the flexible ring.

According to the utility model discloses a camera assembly, wherein, when flexible circle and camera assembled, the through-hole was worn to locate by the camera, the conductive lens of camera and electrically conductive shell respectively with the inner wall looks butt of through-hole for electrically conductive lens passes through flexible circle and electrically conductive shell electricity is connected. When the conductive lens of the camera adopts an active alignment focusing process, static electricity on the conductive lens is conducted to the conductive shell through the flexible ring, and the conductive shell is conducted with the PCB, so that the static electricity is released in a grounding manner, the influence of the static electricity on a sensor of the camera is avoided, and the image quality of the camera is ensured.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows a schematic structural view of a flexible loop according to an embodiment of the present invention;

FIG. 2 is a sectional view of the flexible loop of FIG. 1 in a configuration for mating with a camera head;

FIG. 3 is a sectional view of the structure in which the camera is assembled at the mounting position by the flexible loop shown in FIG. 1 (first embodiment);

fig. 4 is a structural sectional view (second embodiment) of the camera head assembled at the mounting position by the flexible loop shown in fig. 1.

The reference numbers are as follows:

100 is a flexible ring;

the structure comprises a body 10, a through hole 11, a convex structure 12, a sealing end face 13 and a sealing structure 14; 15 is a positioning structure;

200 is a camera;

21 is a conductive lens, 22 is a conductive shell, 23 is fixing glue, and 24 is a sensor;

300 is the mounting position;

reference numeral 31 denotes a positioning member.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 4, according to the embodiment of the present invention, a flexible ring 100 is provided for installing a camera 200, the flexible ring 100 is a conductive member, the flexible ring 100 includes a body 10 and a through hole 11, the through hole 11 is opened on the body 10 and is used for the camera 200 to wear, and the inner wall of the through hole 11 is used for abutting against a conductive lens 21 of the camera 200 and a conductive shell 22 of the camera 200 respectively.

Specifically, when the flexible ring 100 is used for mounting the camera 200, the camera 200 is inserted into the through hole 11, and the conductive lens 21 and the conductive shell 22 of the camera 200 are respectively abutted against the inner wall of the through hole 11, so that the conductive lens 21 is electrically connected with the conductive shell 22 through the flexible ring 100. When the active alignment focusing process is adopted for the conductive lens 21 of the camera 200, static electricity on the conductive lens 21 is conducted to the conductive shell 22 through the flexible ring 100, and the conductive shell 22 is conducted with the PCB, so that the static electricity is grounded and released, the influence of the static electricity on the sensor 24 of the camera 200 is avoided, and the image quality of the camera 200 is ensured.

It should be understood that the flexible ring 100 is a flexible structure, and is disposed outside the camera 200, so as to protect the outside of the camera 200, avoid the impact of external vibration and other factors on the camera, improve the stability of the camera 200, and ensure the imaging quality of the camera 200.

It should be noted that, in the present application, the length of the camera 200 is greater than the length of the through hole 11, when the camera 200 is matched with the flexible ring 100, the conductive lens 21 of the camera 200 passes through the through hole 11 and a part of the conductive lens protrudes out of one aperture of the through hole 11, another part of the conductive lens 21 is wrapped by the inner wall of the through hole 11, a part of the conductive shell 22 is located in the through hole 11 and is wrapped by the inner wall of the through hole 11, another part of the conductive shell 22 is located outside of another aperture of the through hole 11, the flexible ring 100 wraps up the joint of the conductive lens 21 and the conductive shell 22, thereby avoiding the influence of the external environment on the joint of the conductive lens 21 and the conductive shell 22, and reducing the maintenance cost.

In addition, the conductive lens 21 is a metal lens, and the conductive shell 22 is a metal shell (or a metal core shell) of the camera 200, so that the conductive performance of the camera 200 can be improved by using the metal lens and the metal shell (or the metal core shell), and electromagnetic influence on the camera 200 caused by static electricity and the like is avoided, so that the imaging quality of the camera 200 is ensured, and on the other hand, the metal lens and the metal shell (or the metal core shell) have high strength, so that internal electrical elements can be effectively protected, the impact resistance of the camera 200 is improved, and the maintenance cost of the camera 200 is reduced.

It is further understood that the through hole 11 comprises a first hole section and a second hole section, a first inner wall of the first hole section being adapted for an interference fit with the conductive structure 21 and/or a second inner wall of the second hole section being adapted for an interference fit with the conductive shell 22. Specifically, when camera 200 and flexible circle 100 cooperate, camera 200's partial structure wears to establish in through-hole 11, wherein, the inside shape of through-hole 11 and the shape looks adaptation of camera 200 and its cooperation position, when camera 200 cooperates with flexible circle 100, because flexible circle 100 is flexible structure, the first hole section and the conductive lens interference fit of through-hole 11, the second hole section and the conductive shell 22 interference fit of through-hole 11 to the stability and the conductive lens 21 that have guaranteed conductive lens 21 and conductive shell 22 electricity to be connected can effectively ground connection.

It should be noted that, the conductive lens 21 of the camera 200 and the conductive shell 22 of the camera 200 are fixedly connected through the fixing glue 23, and the flexible ring 100 is disposed at the outer side of the joint of the conductive lens 21 and the conductive shell 22, so that the joint of the conductive lens 21 and the conductive shell 22 is sealed, and the waterproof performance of the camera 200 is further improved.

Further, the flexible ring further comprises a protruding structure 12, the protruding structure 12 is formed on the first inner wall and extends to the radial inner side of the first hole section, and the protruding structure 12 is used for being matched and connected with the conductive lens 21. Specifically, set up protruding structure 12 on the inner wall of through-hole 11, when flexible circle 100 was used for the installation of camera 200, camera 200 set up in through-hole 11, protruding structure 12 and the surface cooperation of camera 200, seal the junction of camera 200 and through-hole 11 through protruding structure 12 to camera 200's waterproof performance has been improved.

In addition, a groove structure is arranged at a position, corresponding to the protruding structure, on the conductive lens 21, and the protruding structure 12 is matched with the groove structure, so that the contact area between the flexible ring 100 and the conductive lens 21 is increased, the conductive lens 21 can be effectively contacted with the flexible ring 100, and the grounding effect of the conductive lens 21 is effectively ensured.

Further, the protruding structure 12 is a first annular rib, and the first annular rib and the first hole section are coaxially disposed. Specifically, when camera 200 and flexible circle 100 cooperate, flexible circle 100 suit is in the outside of camera 200 to make in first annular muscle card goes into the groove structure of camera, through the cooperation of first annular muscle and groove structure, can effectively improve the leakproofness of flexible circle 100 with conductive lens 21 hookup location, thereby improved camera 200's waterproof performance.

Further, the flexible ring further comprises a sealing end face 13 arranged on the body 10, the sealing end face 13 is located at an end face of the orifice of the first hole section, and the sealing end face 13 is used for sealing a mounting gap of the camera 200. Specifically, when the camera is assembled at the installation position, the installation position can be a fixed monitoring point, and can also be a mobile monitoring point, wherein the mobile monitoring point is such as a reversing camera of an automobile, a 360-degree looking-around camera, a streaming media camera or a front-mounted automobile data recorder, etc., the reversing camera of the automobile is taken as an example for explanation, an assembly hole is formed in the tail part of the automobile, the camera 200 is arranged in the automobile, a conductive lens 21 of the camera 200 protrudes out of the tail part of the automobile through the assembly hole, a flexible ring 100 is sleeved on the outer side of the camera 200, a sealing end surface 13 abuts against the inner surface of the tail part of the automobile, and a mounting gap between the camera 200 and the assembly hole is sealed, so that the condition that the automobile enters water through the assembly hole is avoided, the waterproof performance of the assembly hole position of the automobile is effectively realized, and the maintenance cost of the.

In addition, through-hole 11 and camera 200 interference fit, sealed terminal surface 13 and the internal surface cooperation of vehicle to two-stage sealed has been realized to camera 200, makes camera 200's sealed grade obtain further promotion, has further avoided the influence of external environment factor to camera 200 and vehicle.

Further, the flexible ring further comprises a sealing structure 14, and the sealing structure 14 is arranged on the sealing end surface 13 and extends in a direction away from the sealing end surface 13. Specifically, the camera of backing a car of car is exemplified and explained, the vehicle afterbody is mounted position 300, the pilot hole has been seted up to the vehicle afterbody, camera 200 sets up the inside at the vehicle, camera 200's conductive lens 21 protrudes in the afterbody of vehicle through the pilot hole, flexible circle 100 suit is in the outside of camera 200, sealing end face 13 and seal structure 14 all support and lean on the internal surface of vehicle afterbody, thereby further seal the clearance between camera 200 and the pilot hole, the condition that the vehicle was watered through the pilot hole has further been avoided, make the waterproof grade of the pilot hole position of vehicle obtain further promotion.

Further, the sealing structure 14 is a second annular rib, and the second annular rib is located at the radial outer side of the through hole 11 and is coaxially arranged with the through hole 11. Specifically, when flexible circle 100 is used for the assembly of camera 200, camera 200 wears to establish in through-hole 11, explain for the example of the camera of backing a car of car, the vehicle afterbody is mounted position 300, the pilot hole has been seted up to the vehicle afterbody, camera 200 sets up the inside at the vehicle, camera 200's conductive lens 21 projects in the afterbody of vehicle through the pilot hole, flexible circle 100 suit is in the outside of camera 200, second annular muscle is flexible structure, second annular muscle is pressed from both sides and is established between the internal surface of seal face 13 and vehicle afterbody, make second annular muscle take place elastic deformation through the extrusion, thereby seal the installation gap between camera 200 and the pilot hole, the condition that the vehicle was intake through the pilot hole has been avoided, the waterproof of the pilot hole position of vehicle has effectively been realized, the maintenance cost of vehicle has been reduced.

It should be pointed out that, the second annular muscle is triangle-shaped along the axial cross-section's of through-hole 11 shape, and the summit of second annular muscle supports and leans on the internal surface of vehicle afterbody, through compressing tightly for deformation takes place for the second annular muscle, thereby has increased the area of contact of the internal surface of second annular muscle and vehicle afterbody, makes the waterproof performance between vehicle pilot hole and camera 200 obtain further improvement.

Further, the flexible ring further comprises a positioning structure 15 arranged on the outer surface of the body 10, and the positioning structure 15 is used for positioning and mounting the camera 200. Specifically, the camera of backing a car of using the car as an example explains, the vehicle afterbody is mounted position 300, the pilot hole has been seted up to the vehicle afterbody, camera 200 sets up the inside at the vehicle, camera 200's conductive lens 21 protrudes in the afterbody of vehicle through the pilot hole, flexible circle 100 suit is in the outside of camera 200, the second annular muscle is flexible structure, the second annular muscle is pressed from both sides and is established between the internal surface of seal face 13 and vehicle afterbody, make second annular muscle take place elastic deformation through the extrusion, thereby seal the clearance between camera 200 and the pilot hole, cooperation through location structure 15 and mounted position's setting element 31, thereby the installation accuracy of flexible circle 100 and camera 200 has been improved, the location degree of difficulty of camera 200 has been reduced.

In addition, because the flexible ring 100 is of a flexible structure, the flexible ring 100 is arranged between the installation position 300 and the camera 200, so that the vibration reduction of the camera 200 can be effectively realized, abnormal sound generated by vibration and adverse effects (such as internal device damage) caused by the vibration on the camera 200 are avoided, and the maintenance cost of the camera 200 is reduced.

It should be pointed out that location structure 15 can be circular structure face, square structure face or muscle position etc, and the shape and the location structure 15 looks adaptation of setting element 31, through location structure 15 and setting element 31's cooperation, realize the location to flexible circle 100, through the cooperation of protruding structure 12 with groove structure, realized camera 200 and flexible circle 100's location installation to make camera 200 location installation in mounted position 300, improved the precision of camera 200 installation.

Further, the flexible ring 100 is a conductive rubber member. Specifically, the flexible ring 100 is a conductive rubber member formed by compounding ordinary silicone rubber or fluorosilicone rubber as a base material with conductive powder (such as silver-plated glass material, nickel carbon, graphite material, etc.) having excellent conductivity through processing techniques such as mixing and vulcanization. The flexibility of the base material and the high conductivity of the conductive particles are combined together, so that the conductive grounding and electromagnetic shielding can be met, and the sealing can be realized.

The utility model also provides a subassembly of making a video recording, this subassembly of making a video recording include camera 200 and flexible circle, and camera 200 includes conductive lens 21, sensor 24 and has the electrically conductive shell 22 of assembly mouth, and sensor 24 sets up in electrically conductive shell 22, and the assembly mouth is worn to locate by conductive lens 21's partial structure to conductive lens 21 and electrically conductive shell 22 interval set up, flexible circle be according to as above flexible circle 100.

Further, the camera module 200 further includes a fixing adhesive 23, the fixing adhesive 23 is an insulating adhesive and is sandwiched between the conductive shell 22 and the conductive lens 21, the flexible ring 100 is sleeved outside the camera 200 in an interference manner, a part of the structure of the conductive lens 21 on the side away from the conductive shell 22 protrudes out of the flexible ring 100, the protruding structure 12 of the flexible ring 100 is embedded in the groove structure on the outer surface of the conductive lens 21, a part of the structure of the conductive shell 22 on the side away from the conductive lens 21 protrudes out of the flexible ring 100, the camera 200 is positioned and mounted at the mounting position 300 through the positioning structure of the flexible ring 100, and the mounting gap is sealed through the sealing end surface 13 of the flexible ring 100 and the sealing structure 14 of the flexible ring 100.

Specifically, when the flexible ring 100 is assembled with the camera 200, the camera 200 is inserted into the through hole 11, and the conductive lens 21 and the conductive shell 22 of the camera 200 are respectively abutted against the inner wall of the through hole 11, so that the conductive lens 21 is electrically connected with the conductive shell 22 through the flexible ring 100. When the active alignment focusing process is adopted for the conductive lens 21 of the camera 200, static electricity on the conductive lens 21 is conducted to the conductive shell 22 through the flexible ring 100, and the conductive shell 21 is conducted with the PCB, so that the static electricity is grounded and released, the influence of the static electricity on the sensor of the camera 200 is avoided, and the image quality of the camera 200 is ensured.

In addition, please refer to the prior art for other structures of the above-mentioned camera assembly, which are not described herein again.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A flexible loop for mounting a camera (200), the flexible loop being an electrically conductive member, the flexible loop comprising:

a body (10);

the through hole (11), set up in through hole (11) body (10) just are used for wearing to establish of camera (200), the inner wall of through hole (11) be used for respectively with electrically conductive camera lens (21) of camera (200) with electrically conductive shell (22) looks butt of camera (200).

2. The flexible ring according to claim 1, characterized in that the through hole (11) comprises a first hole section and a second hole section, a first inner wall of the first hole section being adapted to be interference fit with the conductive lens (21) and/or a second inner wall of the second hole section being adapted to be interference fit with the conductive shell (22).

3. A flexible loop according to claim 2, further comprising a protruding structure (12), the protruding structure (12) being formed on the first inner wall and extending radially inwards of the first aperture section, the protruding structure (12) being adapted for connection with the electrically conductive lens (21).

4. A flexible loop according to claim 3, wherein the protruding structure (12) is a first annular rib, which is arranged coaxially with the first bore section.

5. A flexible ring according to claim 2, characterized in that it further comprises a sealing end face (13) provided on the body (10), the sealing end face (13) being located at an end face of the aperture of the first bore section, the sealing end face (13) being for sealing a mounting gap of the camera head (200).

6. A flexible ring according to claim 5, further comprising a sealing structure (14), the sealing structure (14) being a second annular bead arranged on the sealing end face (13) and coaxially with the through hole (11), the second annular bead being arranged close to an edge of the body.

7. A flexible loop according to any one of claims 1 to 6, characterized in that it further comprises a positioning structure (15) provided on the outer surface of the body (10), said positioning structure (15) being used for the positioning mounting of the camera head (200).

8. A flexible loop according to any one of claims 1 to 6, characterized in that it is an electrically conductive rubber member.

9. A camera assembly, comprising:

the camera (200), the camera (200) comprises a conductive lens (21), a sensor (24) and a conductive shell (22) with an assembly opening, the sensor (24) is arranged in the conductive shell (22), part of the structure of the conductive lens (21) penetrates through the assembly opening, and the conductive lens (21) and the conductive shell (22) are arranged at intervals;

a flexible loop, the flexible loop being a flexible loop (100) according to any one of claims 1 to 8.

10. The camera assembly according to claim 9, further comprising a fixing glue (23), wherein the fixing glue (23) is an insulating glue and is sandwiched between the conductive shell (22) and the conductive lens (21);

the flexible ring (100) is sleeved outside the conductive lens (21) and the conductive shell (22) in an interference manner, a part of structure of one side, far away from the conductive shell (22), of the conductive lens (21) protrudes out of the flexible ring (100), a protruding structure (12) of the flexible ring (100) is embedded into a groove structure on the outer surface of the conductive lens (21), and a part of structure of one side, far away from the conductive lens (21), of the conductive shell (22) protrudes out of the flexible ring (100);

the camera (200) is positioned and installed at an installation position (300) through a positioning structure of the flexible ring (100), and an installation gap is sealed through a sealing end face (13) of the flexible ring (100) and a sealing structure (14) of the flexible ring (100).

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