Camera system

Abstract

The application provides a camera system, comprising: a camera body, a first camera assembly is hung at the bottom of the camera body, and a first optical axis of the first camera assembly forms an angle with the central axis; a gun stock support horizontally extends radially and outwardly from a side wall of the camera body, and a second camera assembly is hung at the end of the gun stock support through a first transmission assembly to have a horizontal rotation freedom relative to the camera body and the gun stock support, the second camera assembly comprises a second camera base and a second camera head arranged on the second camera base; the first transmission assembly comprises: a first bearing rotating around a longitudinal direction, the first bearing rotationally connects the second camera base to the gun stock support; and a first damping assembly comprising a first stationary part fixedly connected to the gun stock support and a first rotating part rotating synchronously with the first bearing, the first damping assembly is used for providing a damping force to the first bearing to limit the horizontal rotation of the first bearing.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electronic equipment, in particular to a camera system. BACKGROUND

[0002] The camera, also known as computer camera, computer eye, electronic eye, etc., is a kind of video input device, which is widely used in video conferencing, remote medical treatment and real-time monitoring, etc. Users can have image and voice conversation and communication through the camera on the network. In addition, people can also use it for current various popular digital image, video processing, etc.

[0003] Although the current camera can be used for video recording or real-time image monitoring, it is limited by the field of view and the shooting angle in the use process, and a single camera often cannot realize comprehensive monitoring of a larger scene. Therefore, a camera system including multiple cameras is needed to solve the above technical problems. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a camera system, which includes at least two camera assemblies, and the angle of the camera assembly relative to the camera body is adjustable to combine to realize a larger shooting range.

[0005] In an embodiment of the present application, a camera system is provided, which includes:

[0006] A camera body is formed as a cylinder around a central axis extending in a longitudinal direction, a bottom of the camera body is hung with a first camera assembly, and a first optical axis of the first camera assembly forms an angle with the central axis;

[0007] A gun stock is radially and horizontally extended from a side wall of the camera body, a second camera assembly is hung at an end of the gun stock via a first transmission assembly to have a degree of freedom of horizontal rotation relative to the camera body and the gun stock, wherein the second camera assembly includes a second camera base and a second camera head mounted on the second camera base;

[0008] The first transmission assembly includes:

[0009] A first bearing is rotated around the longitudinal direction, and the first bearing rotationally connects the second camera base to the gun stock;

[0010] A first damping assembly includes a first stationary part fixedly connected with the gun stock and a first rotating part synchronously rotated with the first bearing, and the first damping assembly is used to provide the first bearing with a first damping force limiting the horizontal rotation thereof;

[0011] The first rotating part comprises a screw defining a first central axis, a first spring and a plurality of first friction plates sleeved on the screw, a first rotating member rotating synchronously with the screw, and a first adjusting nut threadedly engaged with an outer surface of the screw, wherein the first stationary part is sleeved on the screw, the first spring, the first friction plates, and the first stationary part are located between the first rotating member and the first adjusting nut, the first rotating member is fixedly connected with the first bearing, the first spring has an elastic deformation amount in an axial direction of the first central axis, and the first damping force is responsive to a spacing between the first adjusting nut and the first rotating member.

[0012] The first spring is isolated from the first adjusting nut, the first stationary part, and the first rotating member.

[0013] In an embodiment, the gun support has a hollow cavity, and the first transmission assembly is located in the hollow cavity.

[0014] The second camera base comprises a second top box located at a top portion thereof, the second top box penetrating from a bottom surface of the gun support into the hollow cavity to be rotationally connected with the first bearing.

[0015] In an embodiment, the screw has a through hole penetrating in an axial direction thereof, and a cable connected to the second camera penetrates into the hollow cavity from the screw.

[0016] In an embodiment, the first stationary part comprises a central ring part sleeved on the screw, and a pair of connecting arms extending radially outward from the central ring part, the pair of connecting arms being fixedly connected in the hollow cavity of the gun support.

[0017] In an embodiment, a first radial direction formed by the pair of connecting arms relative to the first central axis forms an acute angle with a second radial direction formed by the gun support relative to the camera body.

[0018] In an embodiment, the first transmission assembly comprises:

[0019] a first synchronous wheel fixedly connected with the first bearing to rotate synchronously with the first bearing;

[0020] The second camera assembly comprises a first horizontal motor for driving the first bearing to rotate around a longitudinal direction via the first synchronous wheel, the first horizontal motor being installed in the hollow cavity.

[0021] In an embodiment, in the axial direction of the first central axis, the first spring is located between a pair of the first friction plates.

[0022] In one embodiment, the first stationary part is located between a pair of the first friction plates in the axial direction of the first central axis.

[0023] In one embodiment, the outer surface of the screw rod has a first limiting gap, the first rotating part, the first elastic sheet and the first friction plates each have a limiting gap corresponding to the first limiting gap, so as to rotate synchronously with the screw rod.

[0024] In one embodiment, the end of the screw rod has a first stepped part limiting the first rotating part,

[0025] The first rotating part includes three first friction plates, which are respectively isolated between the first rotating part and the first stationary part, between the first stationary part and the first elastic sheet, and between the first elastic sheet and the first adjusting nut.

[0026] In one embodiment, the second camera base comprises:

[0027] A second horizontal part, the second top box is connected to the center of the second horizontal part;

[0028] A pair of second side walls, the pair of second side walls respectively extend longitudinally from the ends of the second horizontal part, the second camera is installed between the pair of second side walls via a second transmission assembly, so as to have the freedom of pitching rotation relative to the camera body and the bolt carrier;

[0029] The second transmission assembly comprises:

[0030] A second bearing, the second bearing rotates around the horizontal direction, the second bearing rotatably connects the second camera to the second side wall;

[0031] A second damping assembly, the second damping assembly includes a second stationary part fixedly connected with the second bearing and a second rotating part fixedly connected with the second camera, the second damping assembly is used for providing the second bearing with a second damping force limiting the pitching rotation thereof, the axial direction of the second stationary part extends along the horizontal direction;

[0032] The second rotating part comprises a second elastic sheet sleeved on the second stationary part and a plurality of second friction sheets, a second rotating member rotating synchronously with the second camera, and a second adjusting nut threadedly matched with the outer surface of the second stationary part, wherein the second elastic sheet and the second friction sheets are limited between the second rotating member and the second adjusting nut, the second rotating member is fixedly connected with the second camera, the second elastic sheet has an elastic deformation amount along the axial direction of the second stationary part, and the second damping force is responsive to the spacing between the second adjusting nut and the second rotating member.

[0033] The second elastic sheet is isolated from the second adjusting nut, the second stationary part and the second rotating member.

[0034] In one embodiment, the second camera has a second housing, and the second transmission assembly is located in the second housing.

[0035] In one embodiment, the second transmission assembly comprises:

[0036] A second synchronous wheel fixedly connected with the second bearing to rotate synchronously with the second bearing.

[0037] The second camera assembly comprises a second vertical motor for driving the second bearing to rotate around the horizontal direction via the second synchronous wheel, and the second vertical motor is installed in the second housing.

[0038] In one embodiment, the second stationary part has a second stepped portion protruding radially outward,

[0039] The second rotating part comprises three second friction sheets, which are respectively isolated between the second stepped portion and the second rotating member, between the second rotating member and the second elastic sheet, and between the second elastic sheet and the second adjusting nut.

[0040] In one embodiment, the outer surface of the second stationary part has a second limiting notch, and the second elastic sheet and the second friction sheet each have a limiting notch corresponding to the second limiting notch to rotate synchronously with the second stationary part.

[0041] One embodiment of the present application provides a camera system, comprising:

[0042] A camera body;

[0043] A bolt carrier radially and horizontally extending outward from the side wall of the camera body;

[0044] a second camera assembly hung via a first transmission assembly at an end of the bolt carrier to have a degree of freedom of horizontal rotation relative to the camera body and the bolt carrier;

[0045] the first transmission assembly comprises:

[0046] a first bearing rotating around a longitudinal direction, the first bearing rotationally connecting the second camera assembly to the bolt carrier;

[0047] a first synchronous wheel via which the second camera assembly is rotatable relative to the bolt carrier;

[0048] a first damping assembly coaxially arranged with the first bearing, comprising a first stationary part fixedly connected to the bolt carrier, and a first rotating part rotationally synchronized with the first bearing, wherein the first stationary part remains relatively stationary with the bolt carrier;

[0049] the first rotating part comprises in sequence: a screw defining a first central axis, a first adjusting nut coaxially sleeved on the screw, a first spring sheet and a plurality of first friction sheets, and a first rotating member fastened with the first synchronous wheel, wherein the first stationary part is coaxially sleeved on the screw and located between the first friction sheets and the first rotating member;

[0050] the first transmission assembly is configured to:

[0051] when the second camera assembly is horizontally rotated, the first rotating member is synchronously horizontally rotated around the screw under the drive of the first synchronous wheel, the horizontal rotation of the first rotating member is limited by the longitudinal downward spring force exerted by the first spring sheet relative to the first stationary part which is stationary with the bolt carrier, thereby damping the horizontal rotation of the second camera assembly.

[0052] In an embodiment, the first synchronous wheel is fixedly connected with a first bearing end cover of the first bearing to rotationally synchronize with the first bearing.

[0053] In an embodiment, the first spring sheet is isolated from the first adjusting nut, the first stationary part, and the first rotating member via the first friction sheets.

[0054] In an embodiment, the first stationary part comprises: a central ring part sleeved on the screw, and a pair of connecting arms extending radially outward from the central ring part, the pair of connecting arms being fixedly connected within the bolt carrier.

[0055] In one embodiment, a first radial direction formed by the pair of connecting arms relative to the first central axis forms an acute angle with a second radial direction formed by the bolt carrier relative to the camera body.

[0056] In one embodiment, the outer surface of the screw rod has a first limiting gap, the first rotating member, the first elastic sheet and the first friction sheet each has a limiting gap corresponding to the first limiting gap, so as to keep relative static with the screw rod.

[0057] In one embodiment, the end of the screw rod has a first step part limiting the first rotating member,

[0058] The first rotating part includes three first friction sheets, which are respectively isolated between the first rotating member and the first static part, between the first static part and the first elastic sheet, and between the first elastic sheet and the first adjusting nut.

[0059] In one embodiment, the second camera assembly includes a second camera base and a second camera head installed on the second camera base.

[0060] In one embodiment, the bolt carrier has a hollow cavity, and the first transmission assembly is located in the hollow cavity,

[0061] The second camera base includes a second top box located at the top thereof, the second top box penetrates from the bottom surface of the bolt carrier to the hollow cavity, and is rotationally connected with the first bearing;

[0062] The screw rod has a through hole penetrating along the axial direction thereof, and a cable connected with the second camera head extends from the screw rod into the hollow cavity.

[0063] In one embodiment, the second camera base includes:

[0064] A second horizontal part and a pair of second side walls, the pair of second side walls respectively extend longitudinally from the ends of the second horizontal part, and the second camera head is installed between the pair of second side walls via a second transmission assembly, so as to have a degree of freedom of pitching rotation relative to the camera body and the bolt carrier;

[0065] The second transmission assembly includes:

[0066] A second bearing, the second bearing rotates around the horizontal direction, and the second bearing rotationally connects the second camera head with the second side wall;

[0067] A second synchronous wheel, the second camera head can pitch relative to the second side wall via the second synchronous wheel;

[0068] a second damping assembly comprising a second stationary part fixedly connected with the second side wall and a second rotating part fixedly connected with the second camera, wherein the second stationary part remains relatively stationary with respect to the second side wall, the second stationary part defining a second central axis extending in a horizontal direction;

[0069] the second rotating part comprising, in sequence, a second adjusting nut threadedly engaged with an outer surface of the second stationary part, a second spring sheet and a plurality of second friction sheets sleeved on the second stationary part, and a second rotating member rotating in synchronization with the second camera;

[0070] the second transmission assembly is configured to:

[0071] when the second camera is panning, the second rotating member is panning in synchronization around the second central axis under the drive of the second synchronous wheel, the panning of the second rotating member is limited by the horizontal inward spring force exerted by the second spring sheet with respect to the second stationary part which remains relatively stationary with respect to the second side wall, thereby damping the panning of the second camera.

[0072] In an embodiment, the second synchronous wheel is fixedly connected with the second bearing to rotate in synchronization with the second bearing.

[0073] In an embodiment, the second spring sheet is isolated from the second adjusting nut, the second stationary part and the second rotating member via the second friction sheets.

[0074] In an embodiment, the second stationary part has a second stepped part protruding radially outward,

[0075] the second rotating part comprises three second friction sheets respectively isolated between the second stepped part and the second rotating member, between the second rotating member and the second spring sheet, and between the second spring sheet and the second adjusting nut.

[0076] In an embodiment, an outer surface of the second stationary part has a second limiting aperture, the second spring sheet and the second friction sheets each have a limiting aperture corresponding to the second limiting aperture to remain relatively stationary with respect to the second central axis.

[0077] In an embodiment, the second camera has a second housing, the second transmission assembly is located within the second housing.

[0078] the second camera assembly comprises a second vertical motor for driving the second bearing to rotate around a horizontal direction via the second synchronous wheel, the second vertical motor being installed within the second housing.

[0079] From the above technical solutions, in the embodiment, the first camera assembly 2 is hung at the bottom of the camera body 1, and the gun stock support 3 extends horizontally outward from the side wall of the camera body 1 to hang the second camera assembly 4. Among them, a pair of gun stock supports 3 can extend radially outward along a diameter direction of the camera body 1 to hang a pair of second camera assemblies 4. Among them, each second camera assembly 4 is hung at the end of a gun stock support 3 through the first transmission assembly 5 to have the freedom of horizontal rotation relative to the camera body 1 and the gun stock support 3. A pair of second camera assemblies 4 can be directed in different directions in the horizontal direction to form a larger horizontal field of view range together with the first camera assembly 2.

[0080] Among them, the first elastic sheet 523 does not directly contact the hard structures of the first adjusting nut 525, the first stationary part 521 and the first rotating part 526, but is isolated from the hard structures by the wear-resistant first friction sheet 524 to avoid elastic failure caused by friction during rotation. The first elastic sheet 523 adjusts the locking force through the first adjusting nut 525, and the friction force is provided by the first friction sheet 524, that is, the rotation damping effect is provided by the friction force between the first rotating part and the first stationary part 521.

[0081] The second elastic sheet 622 does not directly contact the hard structures of the second adjusting nut 625, the second stationary part 621 and the second rotating part 624, but is isolated from the hard structures by the wear-resistant second friction sheet 623 to avoid elastic failure caused by friction during rotation. The second elastic sheet 622 adjusts the locking force through the second adjusting nut 625, and the friction force is provided by the second friction sheet 623, that is, the rotation damping effect is provided by the friction force between the second rotating part and the second stationary part 621. BRIEF DESCRIPTION OF DRAWINGS

[0082] The following drawings only illustrate and explain the present application, and do not limit the scope of the present application.

[0083] Fig. 1 is a structural schematic diagram of the camera system of the present application.

[0084] Fig. 2 is a structural schematic diagram of the second camera assembly in the camera system of the present application.

[0085] Fig. 3 is a partial schematic diagram of the first embodiment of the camera system of the present application.

[0086] Figs. 4a to 4c is a structural schematic diagram, an exploded schematic diagram and a sectional view of the first transmission assembly in the camera system of the present application.

[0087] Fig. 5 FIG. 1 is a partial schematic diagram of a second embodiment of a camera system according to the present invention.

[0088] Figs. 6a to 6c It is a structural schematic diagram, an exploded schematic diagram and a cross-sectional view of the second transmission component in the camera system of the present invention. DETAILED DESCRIPTION

[0089] In order to have a clearer understanding of the technical features, purposes and effects of the invention, specific embodiments of the present invention are now described with reference to the accompanying drawings, in which the same reference numerals represent the same parts.

[0090] In this document, “illustrative” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “illustrative” should not be interpreted as a more preferred or more advantageous technical solution.

[0091] To simplify the drawings, only the parts relevant to the present invention are schematically shown in each figure and do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled.

[0092] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0093] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the prerequisite for each other's existence.

[0094] In this document, "equal" and "same" are not strictly limited in the mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use. Unless otherwise specified, the numerical ranges herein include not only the entire range within its two endpoints, but also several sub-ranges contained therein.

[0095] Example embodiments will now be described more fully with reference to the accompanying drawings.

[0096] In order to solve the problems in the prior art, the present invention provides a camera system, which includes at least two camera assemblies, and the angles of the camera assemblies relative to the camera body are adjustable so as to achieve a larger shooting range in combination.

[0097] like Figs. 1 to 2 As shown, one embodiment of the present invention provides a camera system, comprising:

[0098] The camera body 1 is formed as a cylindrical shape around a central axis L extending in a longitudinal direction, and a first camera assembly 2 is hung at a bottom of the camera body 1, and a first optical axis of the first camera assembly 2 forms an angle with the central axis L;

[0099] A bolt carrier 3 extends radially and horizontally from a side wall of the camera body 1, and a second camera assembly 4 is hung at an end of the bolt carrier 3 via a first transmission assembly 5 to have a degree of freedom of horizontal rotation relative to the camera body 1 and the bolt carrier 3, wherein the second camera assembly 4 includes a second camera base 41 and a second camera head 42 mounted on the second camera base 41;

[0100] The first transmission assembly 5 includes:

[0101] A first bearing 51 rotates around the longitudinal direction, and the first bearing 51 rotationally connects the second camera base 41 to the bolt carrier 3;

[0102] A first damping assembly 52 is coaxially arranged with the first bearing 51, and the first damping assembly 52 includes a first stationary part 521 fixedly connected to the bolt carrier 3 and a first rotating part rotationally synchronized with the first bearing 51, and the first damping assembly 52 is configured to provide a first damping force to the first bearing 51 to limit the horizontal rotation of the first bearing 51, wherein the first stationary part 521 remains relatively stationary with the bolt carrier 3;

[0103] A first synchronous wheel 53 drives the second camera assembly 4 to rotate horizontally relative to the bolt carrier 3;

[0104] The first rotating part includes a screw 522 defining a first central axis, a first spring sheet 523 and a plurality of first friction sheets 524 sleeved on the screw 522, a first rotating member 526 fastened with the first synchronous wheel 53, and a first adjusting nut 525 threadedly cooperating with an outer surface of the screw 522, wherein the first stationary part 521 is sleeved on the screw 522, the first spring sheet 523, the first friction sheets 524, and the first stationary part 521 are limited between the first rotating member 526 and the first adjusting nut 525, the first rotating member 526 is fixedly connected with the first bearing 51, the first spring sheet 523 has an elastic deformation amount along an axial direction of the first central axis, and the first damping force is responsive to a spacing between the first adjusting nut 525 and the first rotating member 526;

[0105] The first spring sheet 523 is isolated from the first adjusting nut 525, the first stationary part 521, and the first rotating member 526.

[0106] In the embodiment, the first transmission assembly 5 is configured to: when the second camera assembly 4 rotates horizontally, the first rotating part 526 rotates horizontally around the screw 522 under the drive of the first synchronous wheel 53, the horizontal rotation of the first rotating part 526 is limited by the first static part 521 which is static relative to the gun support 3 and the longitudinal downward elastic force of the first spring 523, thereby damping the horizontal rotation of the second camera assembly 4.

[0107] In the embodiment, the first camera assembly 2 is hung at the bottom of the camera body 1, and the gun support 3 extends horizontally outward from the side wall of the camera body 1 to hang the second camera assembly 4. Among them, a pair of gun supports 3 can be included, which extend radially outward along a diameter direction of the camera body 1 to hang a pair of second camera assemblies 4. Among them, each second camera assembly 4 is hung at the end of a gun support 3 via a first transmission assembly 5 to have the freedom of horizontal rotation relative to the camera body 1 and the gun support 3. A pair of second camera assemblies 4 can be directed in different directions in the horizontal direction to form a larger horizontal field of view together with the first camera assembly 2.

[0108] The damping of the rotating joint part of the first transmission assembly 5 mainly provides a certain self-locking force to prevent free rotation when the equipment is powered off (the motor is not powered on), causing the camera picture to shake. Therefore, the damping stability of the rotating joint part is very important.

[0109] Generally, the rotating joint with damping mostly adopts a structure with a ring-shaped spring, for example, Fig. 4b The first spring shown in FIG. 1 has an elastic deformation amount in the axial direction of the rotating joint, and generates a damping force by adjusting the friction force generated by the compression of the nut and the friction between the rotating part in the rotating joint. Generally, the spring is usually installed between the relative rotating parts, and since the spring participates in rotation, there are problems such as wear, unstable damping force, etc. And replacing different weight cameras requires adjusting different damping forces, which requires replacing the spring type, compression amount, structure size, etc., resulting in poor adaptability and universality of the rotating joint. Further, the traditional structure spring participates in compression and friction, and the movement life, reliability and stability are not high, and there are problems such as abnormal noise, damping force decay, and jamming after a long time.

[0110] In the embodiment, the first transmission assembly 5 comprises a first bearing 51 for providing a rotary connection and a first damping assembly 52 for providing a damping force. The outer ring (fixed part) of the first bearing 51 is fixed to the bolt carrier 3 by screws, and the inner ring (rotary part) of the first bearing 51 is fixedly connected to the second camera base 41 of the second camera assembly 4, so that when the inner ring of the first bearing 51 rotates, the second camera base 41 is driven to rotate relative to the outer ring. The first bearing 51 rotates around the longitudinal direction to realize the horizontal rotation of the second camera base 41 around the longitudinal direction.

[0111] The first damping assembly 52 comprises a first stationary part 521 fixedly connected to the bolt carrier 3 and a first rotary part synchronously rotating with the first bearing 51. The structure of the first rotary part is shown in Figs. 4a to 4c The screw rod 522 provides a support center in the form of a circular shaft, the first spring sheet 523 for providing a compression deformation amount, the first friction sheet 524 for providing a friction damping, the first adjusting nut 525 for adjusting the compression deformation amount, the first rotating part 526 for connecting with the first bearing 51, and the first stationary part 521 for providing a fixed support and a damping support point are all sleeved on the screw rod 522, and the first spring sheet 523, the first friction sheet 524, the first adjusting nut 525, and the first rotating part 526 all synchronously rotate with the screw rod 522. The first adjusting nut 525 is threadedly connected with the outer surface of the screw rod 522 to adjust the deformation amount of the first spring sheet 523.

[0112] The first stationary part 521 is fixedly connected to the bolt carrier 3 and is stationary to serve as a damping support point. When the first rotating part 526 is synchronously horizontally rotated around the screw rod 522 under the drive of the first synchronous wheel 53, a first damping force limiting the horizontal rotation of the first bearing 51 is provided by adjusting the contact friction force between the first rotary part and the first stationary part 521.

[0113] In the embodiment, the first spring sheet 523 does not directly contact the hard structures of the first adjusting nut 525, the first stationary part 521, and the first rotating part 526, but is isolated from the hard structures by the wear-resistant first friction sheet 524 to avoid the friction during rotation causing elastic failure. The first spring sheet 523 adjusts the locking force through the first adjusting nut 525, the friction force is provided by the first friction sheet 524, that is, the rotary damping effect is provided by the friction force between the first rotary part and the first stationary part 521.

[0114] Specifically, as shown in Fig. 3As shown, the bolt bracket 3 has a hollow cavity, the first transmission assembly 5 is located in the hollow cavity, and the second camera base 41 includes a second top box 411 located on the top thereof. The second top box 411 passes through the bottom surface of the bolt bracket 3 into the hollow cavity to be fixedly connected to the rotating part of the first bearing 51.

[0115] In this embodiment, if Fig. 4c As shown, the screw rod 522 has a through hole extending along its axial direction, and the cable connected to the second camera 42 extends from the screw rod 522 into the hollow cavity.

[0116] In this embodiment, the first transmission assembly 5 is formed into a wire-passing damping structure. The screw 522 not only provides rotational support but also provides a passage for the cable. The cable for the second camera 42 can be directly inserted into the hollow cavity of the bolt bracket 3 through the through hole of the screw 522, and then into the interior of the camera body 1. The control motherboard for the second camera 42 is no longer necessarily located within the housing of the second camera 42, but can instead be moved to the larger interior of the camera body 1.

[0117] In this embodiment, the first stationary portion 521 is located between the pair of first friction plates 524 in the axial direction of the first central axis. This ensures that both the upper and lower surfaces of the first stationary portion 521 are in full contact with the friction surface. The first friction plates 524 are typically made of a material that is softer than hard structures such as metal and plastic, providing greater friction and high wear resistance.

[0118] like Fig. 4b As shown, the outer surface of the screw 522 has a first limiting notch 5221, and the first rotating member 526, the first elastic plate 523, and the first friction plate 524 all have limiting notches corresponding to the first limiting notch 5221, so as to rotate synchronously with the screw 522. The first limiting notch 5221 is formed as a plane recessed inwardly along the circumferential surface of the screw 522. The angle formed by the plane and the circumferential surface enables the first rotating member 526, the first elastic plate 523, and the first friction plate 524 to rotate synchronously with the screw 522.

[0119] In this embodiment, in the axial direction of the first center axis, the first spring plate 523 is located between a pair of first friction plates 524 to ensure that the upper and lower surfaces of the first spring plate 523 are isolated from the hard structure, and only the part involved in the compression is protected by the first friction plate 524 without being subject to friction from the hard structure.

[0120] In a specific example, Fig. 4cAs shown, the end of the screw rod 522 has a first step portion 5222 for limiting the first rotating member 526, and the first rotating member 526 includes three first friction plates 524, which are respectively isolated between the first rotating member 526 and the first stationary portion 521, the first stationary portion 521 and the first elastic sheet 523, and the first elastic sheet 523 and the first adjusting nut 525.

[0121] Thus, each hard structure, i.e. the first stationary portion 521, the first rotating member 526 and the first elastic sheet 523, is clamped between a pair of first friction plates 524 to be isolated from other hard structures.

[0122] In combination Fig. 3 and Fig. 4b As shown, the first stationary portion 521 includes a central ring portion sleeved on the screw rod 522, and a pair of connecting arms 5211 extending radially outward from the central ring portion and fixedly connected in the hollow cavity of the gun carriage 3.

[0123] Here, the first radial direction formed by the pair of connecting arms 5211 relative to the first central axis forms an acute angle with the second radial direction formed by the gun carriage 3 relative to the camera body 1.

[0124] That is, the extending direction of the pair of connecting arms 5211 forms an acute angle with the extending direction of the gun carriage 3, so as to reduce the space occupied by the connecting arms 5211 in the hollow cavity of the gun carriage 3, and reduce the external size of the gun carriage 3.

[0125] As shown Fig. 3 The first transmission assembly 5 includes:

[0126] a first synchronous wheel 53 fixedly connected with the first bearing end cover 511 of the first bearing 51 to rotate synchronously with the first bearing 51;

[0127] The second camera assembly 4 includes a first horizontal motor for driving the first bearing 51 to rotate around the longitudinal direction via the first synchronous wheel 53, and the first horizontal motor is arranged in the hollow cavity.

[0128] The first horizontal motor for driving the second camera assembly 4 to rotate horizontally is not arranged inside the second camera 42, but arranged in the hollow cavity of the gun carriage 3, which is beneficial to reduce the volume of the second camera 42 and improve the heat dissipation effect of the second camera 42.

[0129] Fig. 5 is a partial schematic view of a second embodiment of the camera system of the present application. As Fig. 2 and Fig. 5As shown, the second camera assembly 4 is hung on the end of the gun bracket 3 via the first transmission assembly 5 so as to have the freedom of horizontal rotation relative to the camera body 1 and the gun bracket 3, and is installed on the second camera base 41 via the second transmission assembly 6 so as to have the freedom of pitch rotation relative to the camera body 1 and the gun bracket 3.

[0130] Wherein, the second camera base 41 includes:

[0131] a second horizontal portion 412 , wherein the second top box 411 is connected to the center of the second horizontal portion 412 ;

[0132] A pair of second side walls 413 , each extending longitudinally from an end portion of the second horizontal portion 412 . The second camera 42 is mounted between the pair of second side walls 413 via a second transmission assembly 6 , allowing the second camera 42 to be free to pitch and rotate relative to the camera body 1 and the bolt bracket 3 .

[0133] Combine Figs. 6a to 6c As shown, the second transmission assembly 6 includes:

[0134] A second bearing 61 , which rotates in a horizontal direction and rotatably connects the second camera 42 to the second side wall 413 ;

[0135] A second damping assembly 62 includes a second stationary portion 621 fixedly connected to the second bearing 61 and a second rotating portion fixedly connected to the second camera 42. The second damping assembly 62 is configured to provide a second damping force to the second bearing 61 to limit its pitch rotation. The axial direction of the second stationary portion 621 extends horizontally.

[0136] A second synchronous wheel 63 , through which the second camera 42 can pitch and rotate relative to the second side wall 413 ;

[0137] The second rotating portion includes: a second elastic piece 622 and a plurality of second friction plates 623 sleeved on the second stationary portion 621; a second rotating member 624 that rotates synchronously with the second camera 42; and a second adjustment nut 625 threadedly engaged with the outer surface of the second stationary portion 621. The second elastic piece 622 and the second friction plate 623 are constrained between the second rotating member 624 and the second adjustment nut 625. The second rotating member 624 is fixedly connected to the second camera 42. The second elastic piece 622 has an elastic deformation along the axial direction of the second stationary portion 621. The second damping force is responsive to the distance between the second adjustment nut 625 and the second rotating member 624.

[0138] The second elastic piece 622 is isolated from the second adjusting nut 625 , the second stationary portion 621 , and the second rotating member 624 .

[0139] In the embodiment, the second transmission assembly 6 is configured such that, when the second camera 42 is panning, the second rotating part 624 is panning around the second central axis synchronously under the drive of the second synchronous wheel 63, the panning of the second rotating part 624 is limited by the horizontal inward elastic force of the second elastic sheet 622 applied to the second static part 621 which is static relative to the second side wall 413, and the panning of the second camera 42 is thus damped.

[0140] The structure of the second transmission assembly 6 is similar to that of the first transmission assembly 5, and both are configured with friction sheets so that the second elastic sheet 622 is isolated from the hard structures of the second adjusting nut 625, the second static part 621 and the second rotating part 624 by the wear-resistant second friction sheet 623, to avoid the loss of elasticity caused by friction during rotation. The locking force is adjusted by the second adjusting nut 625, the friction force is provided by the second friction sheet 623, that is, the rotating damping effect is provided by the friction force between the second rotating part and the second static part 621.

[0141] As shown in Fig. 1 and Fig. 5 , the second camera 42 has a second housing, and the second transmission assembly 6 is located in the second housing.

[0142] The connection mode of the second transmission assembly 6 is not the same as that of the first transmission assembly 5. Specifically, the outer retainer ring (second static part) of the second bearing 61 is fixed to the second housing 421 by a vertical bearing pressing plate and a screw, the second static part 621 penetrates the inner retainer ring (second rotating part 624) of the second bearing 61, and is pressed by the second synchronous wheel 63 and a screw, so as to rotate synchronously with the second bearing 61.

[0143] The second damping assembly 62 includes the second static part 621 fixedly connected with the second side wall 413 and the second rotating part fixedly connected with the second housing 421 of the second camera 42.

[0144] The difference in connection mode is the difference in connection mode of the second bearing 61. Specifically, the fixed part of the second bearing 61 is connected with the second housing 421 to be rotated, and the rotating part is connected with the second damping assembly 62. The fixed part of the first bearing 51 is connected with the gun stock 3, and the rotating part is connected with the second camera base 41 to be rotated.

[0145] Correspondingly, the second transmission assembly 6 includes:

[0146] The second synchronous wheel 63 is fixedly connected with the second bearing 61 to rotate synchronously with the second bearing 61;

[0147] The second camera assembly 4 comprises a second vertical motor for driving the second bearing 61 to rotate around the horizontal direction via the second synchronous wheel 63, and the second vertical motor is arranged in the second housing.

[0148] The second vertical motor is arranged in the second housing to drive the second bearing 61 to rotate around the horizontal direction via the second synchronous wheel 63, so as to realize the pitching rotation of the second camera 42 relative to the camera body 1 and the gun stock 3.

[0149] As shown in Figs. 6a to 6c The second stationary part 621 has a second stepped part 6211 protruding radially outward, and the second rotating part comprises three second friction plates 623, which are respectively isolated between the second stepped part 6211 and the second rotating part 624, the second rotating part 624 and the second spring plate 622, and the second spring plate 622 and the second adjusting nut 625.

[0150] In the embodiment, in the axial direction of the second stationary part 621, the second spring plate 622 is located between the pair of second friction plates 623, so that the upper and lower surfaces of the second spring plate 622 are isolated from the hard structures, and only the compressed part is protected by the second friction plates 623, without being rubbed by the hard structures.

[0151] Therefore, each hard structure, the second stepped part 6211 of the second stationary part 621, the second rotating part 624, and the second spring plate 622, is clamped between a pair of second friction plates 623 to be isolated from other hard structures.

[0152] In a specific example, the outer surface of the second stationary part 621 has a second limiting gap 6212, and the second rotating part 624, the second spring plate 622 and the second friction plate 623 all have limiting gaps corresponding to the second limiting gap 6212, so as to rotate synchronously with the second stationary part 621.

[0153] From the above technical solutions, in the embodiment, the first camera assembly 2 is hung at the bottom of the camera body 1, and the gun stock 3 extends outward and horizontally from the side wall of the camera body 1 to hang the second camera assembly 4. Among them, a pair of gun stocks 3 can extend radially outward along a diameter direction of the camera body 1 to hang a pair of second camera assemblies 4. Each second camera assembly 4 is hung at the end of a gun stock 3 via the first transmission assembly 5 to have the freedom of horizontal rotation relative to the camera body 1 and the gun stock 3. The pair of second camera assemblies 4 can be directed in different directions in the horizontal direction to form a larger horizontal field of view together with the first camera assembly 2.

[0154] The first elastic sheet 523 is not in direct contact with the first adjusting nut 525, the first stationary part 521 and the first rotating part 526, but is isolated from the hard structures by the wear-resistant first friction sheet 524, so as to avoid the friction in the rotating process from causing elastic failure. The first elastic sheet 523 adjusts the locking force through the first adjusting nut 525, and the friction force is provided by the first friction sheet 524, i.e. the rotating damping effect is provided, and the rotating damping effect is provided through the friction force between the first rotating part and the first stationary part 521.

[0155] The second elastic sheet 622 is not in direct contact with the second adjusting nut 625, the second stationary part 621 and the second rotating part 624, but is isolated from the hard structures by the wear-resistant second friction sheet 623, so as to avoid the friction in the rotating process from causing elastic failure. The second elastic sheet 622 adjusts the locking force through the second adjusting nut 625, and the friction force is provided by the second friction sheet 623, i.e. the rotating damping effect is provided, and the rotating damping effect is provided through the friction force between the second rotating part and the second stationary part 621.

[0156] The above detailed description is only a specific description of the feasible embodiments of the present application, and is not intended to limit the protection scope of the present application. Any equivalent embodiments or changes made without departing from the spirit of the present application, such as the combination, division or repetition of features, shall be included in the protection scope of the present application.

Claims

1. A camera system, characterized by Comprising: a camera body (1); a bolt carrier (3) extending horizontally radially outward from a side wall of the camera body (1); a second camera assembly (4) hung at an end of the bolt carrier (3) via a first transmission assembly (5) to have a degree of freedom of horizontal rotation relative to the camera body (1) and the bolt carrier (3); the first transmission assembly (5) comprising: a first bearing (51) rotating around a longitudinal direction, the first bearing (51) rotationally connecting the second camera assembly (4) to the bolt carrier (3); a first synchronous wheel (53) via which the second camera assembly (4) can rotate horizontally relative to the bolt carrier (3); a first damping assembly (52) coaxially arranged with the first bearing (51), comprising a first stationary part (521) fixedly connected with the bolt carrier (3) and a first rotating part rotationally synchronized with the first bearing (51), wherein the first stationary part (521) remains relatively stationary with the bolt carrier (3); the first rotating part in turn comprising a screw rod (522) defining a first central axis, a first adjusting nut (525) coaxially sleeved on the screw rod (522), a first spring sheet (523) and a plurality of first friction sheets (524), and a first rotating piece (526) fastened with the first synchronous wheel (53), wherein the first stationary part (521) is coaxially sleeved on the screw rod (522) and located between the first friction sheets (524) and the first rotating piece (526); the first transmission assembly (5) being configured so that: when the second camera assembly (4) rotates horizontally, the first rotating piece (526) synchronously rotates horizontally around the screw rod (522) under the drive of the first synchronous wheel (53), the horizontal rotation of the first rotating piece (526) being limited by the first spring sheet (523) exerting a longitudinally downward spring force relative to the first stationary part (521) which remains stationary relative to the bolt carrier (3), thereby damping the horizontal rotation of the second camera assembly (4); an outer surface of the screw rod (522) has a first limiting gap (5221), the first rotating piece (526), the first spring sheet (523) and the first friction sheets (524) each have a limiting gap corresponding to the first limiting gap (5221) to remain relatively stationary with the screw rod (522); the first spring sheet (523) is isolated from the first adjusting nut (525), the first stationary part (521) and the first rotating piece (526) via the first friction sheets (524).

2. The camera system of claim 1, wherein, the first synchronous wheel (53) is fixedly connected with a first bearing end cover (511) of the first bearing (51) to rotationally synchronize with the first bearing (51).

3. The camera system of claim 1, wherein, The first stationary part (521) comprises a center ring part sleeved on the screw rod (522), and a pair of connecting arms (5211) extending radially outward from the center ring part, and the pair of connecting arms (5211) are fixedly connected in the bolt carrier (3).

4. The camera system of claim 3, wherein, A first radial direction formed by the pair of connecting arms (5211) relative to the first center axis forms an acute angle with a second radial direction formed by the bolt carrier (3) relative to the camera body (1).

5. The camera system of claim 1, wherein, An end of the screw rod (522) has a first step part (5222) limiting the first rotating part (526), The first rotating part comprises three first friction plates (524) respectively isolated between the first rotating part (526) and the first stationary part (521), the first stationary part (521) and the first elastic sheet (523), and the first elastic sheet (523) and the first adjusting nut (525).

6. The camera system of claim 1, wherein, The second camera assembly (4) comprises a second camera base (41) and a second camera head (42) mounted on the second camera base (41).

7. The camera system of claim 6, wherein, The bolt carrier (3) has a hollow cavity, and the first transmission assembly (5) is located in the hollow cavity, The second camera base (41) comprises a second top box (411) located at the top thereof, and the second top box (411) penetrates from the bottom surface of the bolt carrier (3) into the hollow cavity to be rotationally connected with the first bearing (51); The screw rod (522) has a through hole penetrating along the axial direction thereof, and a cable connected with the second camera head (42) extends from the screw rod (522) into the hollow cavity.

8. The camera system of claim 6, wherein, The second camera base (41) comprises: A second horizontal part (412) and a pair of second side walls (413) respectively extending longitudinally from the ends of the second horizontal part (412), and the second camera head (42) is mounted between the pair of second side walls (413) via a second transmission assembly (6) to have a degree of freedom of pitching rotation relative to the camera body (1) and the bolt carrier (3); The second transmission assembly (6) comprises: A second bearing (61) rotating around the horizontal direction, and the second bearing (61) rotationally connects the second camera head (42) with the second side wall (413); A second synchronous wheel (63), and the second camera head (42) can pitch relative to the second side wall (413) via the second synchronous wheel (63); A second damping assembly (62) comprising a second stationary part (621) fixedly connected with the second side wall (413) and a second rotating part fixedly connected with the second camera head (42), wherein the second stationary part (621) remains relatively stationary with the second side wall (413), and the second stationary part (621) defines a second center axis extending in the horizontal direction; The second rotating part comprises, in sequence, a second adjusting nut (625) threadedly engaged with an outer surface of the second stationary part (621), a second spring plate (622) and a plurality of second friction plates (623) sleeved on the second stationary part (621), and a second rotating member (624) rotating synchronously with the second camera (42). The second transmission assembly (6) is configured to: When the second camera (42) is panning, the second rotating member (624) is driven by the second synchronous wheel (63) to pan around the second central shaft synchronously, and the panning of the second rotating member (624) is limited by the horizontal inward elastic force applied by the second spring plate (622) to the second stationary part (621) which is stationary relative to the second side wall (413), thereby damping the panning of the second camera (42).

9. The camera system according to claim 8, characterized in that The second synchronous wheel (63) is fixedly connected with the second bearing (61) to rotate synchronously with the second bearing (61).

10. The camera system of claim 8, wherein, The second spring plate (622) is isolated from the second adjusting nut (625), the second stationary part (621) and the second rotating member (624) via the second friction plates (623).

11. The camera system of claim 8, wherein, The second stationary part (621) has a second stepped portion (6211) protruding radially outward, The second rotating part comprises three second friction plates (623) isolated between the second stepped portion (6211) and the second rotating member (624), between the second rotating member (624) and the second spring plate (622), and between the second spring plate (622) and the second adjusting nut (625).

12. The camera system of claim 8, wherein, The outer surface of the second stationary part (621) has a second limiting notch (6212), and the second spring plate (622) and the second friction plates (623) each have a limiting notch corresponding to the second limiting notch (6212) to keep relative stationarity with the second central shaft.

13. The camera system of claim 8, wherein, The second camera (42) has a second housing, and the second transmission assembly (6) is located in the second housing. The second camera assembly (4) comprises a second vertical motor for driving the second bearing (61) to rotate around the horizontal direction via the second synchronous wheel (63), and the second vertical motor is arranged in the second housing.

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