Video conferencing camera

Abstract

The present invention discloses a video conferencing camera, comprising a housing, a gear assembly, and a lens assembly. The gear assembly comprises a first gear, a second gear, and a roller. The first gear, the second gear, and the roller are spaced apart from each other and are rotatably connected to the wall of a mounting cavity. The two sides of the second gear are respectively meshed with the first gear and the roller. A first gasket is provided between at least one end face of the second gear and the wall of the mounting cavity. The first gasket is made of a flexible material. The lens assembly is provided with a first mounting portion and a second mounting portion relative to each other. The first mounting portion is connected to the rotation connection of the first gear. The second mounting portion is rotatably connected to the side wall of the mounting cavity, and its axis is aligned with the rotation axis of the first gear. The roller is driven to rotate, thereby driving the second gear, the first gear, and the lens assembly to rotate, thereby achieving angle adjustment. The video conferencing camera according to the technical solution of the present invention can reduce rotation noise.

Description

Technical Field

[0001] The present invention relates to the technical field of cameras, and in particular to a video conferencing camera. Background Art

[0002] At present, the demand for using the Internet to hold remote meetings, business exchanges, video recruitment, and personnel education is becoming more and more urgent. The interaction of audio, video and data through conference cameras can effectively solve the geographical barriers of remote offices and remote communication.

[0003] Adjustable camera angles are a frequently used feature during video conferencing and a key attraction of video conferencing cameras. However, existing camera structures can experience significant shaking and noise during angle adjustment, leading to issues like abnormal sound pickup and other issues, causing inconvenience to users. Summary of the Invention

[0004] The main purpose of the present invention is to provide a video conferencing camera, aiming to solve the problems of noise and abnormal sound pickup during camera rotation.

[0005] To achieve the above-mentioned purpose, the video conferencing camera proposed by the present invention comprises

[0006] a housing, wherein the housing is formed with a mounting cavity;

[0007] A gear assembly, the gear assembly comprising a first gear, a second gear, and a roller, the first gear, the second gear, and the roller being spaced apart from each other and rotatably connected to the cavity wall of the mounting cavity, the second gear being disposed between the first gear and the roller and being meshed with the first gear and the roller on both sides thereof, a first gasket being disposed between at least one end surface of the second gear and the cavity wall of the mounting cavity, the first gasket being made of a flexible material; and

[0008] a lens assembly, the lens assembly comprising a first mounting portion and a second mounting portion opposite to each other, the first mounting portion being connected to a rotational connection of the first gear, the second mounting portion being rotatably connected to a side wall of the mounting cavity, and the axis of the second mounting portion being collinear with the rotational axis of the first gear;

[0009] The roller is driven to rotate, thereby driving the second gear, the first gear and the lens assembly to rotate, thereby achieving angle adjustment.

[0010] In a possible embodiment of the present application, a first connecting hole is provided on the side wall of the mounting cavity, a first mounting bracket is provided on the bottom wall of the mounting cavity, a second connecting hole is provided on the first mounting bracket, a through hole is provided in the middle of the second gear, and an annular protrusion is provided on the opening edges at both ends of the through hole, and the annular protrusions respectively abut the side wall of the mounting cavity and the side wall of the second mounting bracket, a locking piece passes through the through hole and is locked in the second connecting hole, the second gear is rotatable relative to the locking piece, and the first gasket is arranged between the annular protrusion and the second mounting bracket.

[0011] In a possible embodiment of the present application, the gear assembly further includes at least two second gaskets, at least two of which are clamped between the other end face of the second gear and the side wall of the mounting cavity, and at least two of which are symmetrically distributed on the end face of the second gear.

[0012] In a possible embodiment of the present application, the locking piece is a half-thread screw, the smooth rod portion of the half-thread screw passes through the through hole, the threaded portion of the half-thread screw is locked in the second connecting hole, and the through hole and the smooth rod portion of the half-thread screw are clearance-fitted.

[0013] In a possible embodiment of the present application, the first gear is a sector gear, a first rotating shaft is formed at one end of the sector gear, the second mounting portion is a second rotating shaft, and a first axial hole and a second axial hole are respectively formed on the opposite side walls of the mounting cavity. The first rotating shaft can be rotatably arranged in the first axial hole, the first mounting portion is connected to the side of the first gear away from the first rotating shaft, the second rotating shaft can be rotatably connected to the second axial hole, and at least one of the first rotating shaft and the second rotating shaft is provided with a sealing ring.

[0014] In a possible embodiment of the present application, both the first rotating shaft and the second rotating shaft are stepped shafts, and the stepped surfaces of the stepped shafts abut against the cavity wall of the mounting cavity;

[0015] And / or, the radial compression rate of the sealing ring and the first rotating shaft and the second rotating shaft is 17% to 25%.

[0016] In a possible embodiment of the present application, a positioning hole is formed on the first gear at a position away from the first rotating shaft, the first mounting portion is formed with spaced positioning columns and screw columns, the first gear is provided with a fixing hole that cooperates with the screw column, and the positioning column is inserted into the positioning hole.

[0017] In a possible embodiment of the present application, a support rib is formed on a side of the lens assembly facing the first gear, and the support rib abuts against a middle portion of the first gear in a radial direction thereof;

[0018] And / or, the inner side wall of the mounting cavity is formed with two first limiting ribs arranged at intervals, and the side of the lens assembly facing the first gear is formed with a second limiting rib, the second limiting rib is located between the two first limiting ribs, and the extension direction is consistent with the extension direction of the two first limiting ribs, when the lens assembly is rotated by a preset angle, at least one end of the second limiting rib abuts against one of the first limiting ribs.

[0019] In a possible embodiment of the present application, the gear assembly also includes a third gear, a first C-shaped hole is provided at an opening edge of the mounting cavity, a second mounting bracket is protruded from the inner wall of the mounting cavity, and a second C-shaped hole is provided on the second mounting bracket. Both ends of the third gear can be rotatably passed through the first C-shaped hole and the second C-shaped hole, and the third gear is respectively provided with a tooth portion and a limit portion in the axial direction thereof, the tooth portion is engaged with the second gear, the roller is sleeved and fixed on the limit portion, and the roller is a metal part.

[0020] In a possible embodiment of the present application, the cross section of the limiting portion is square, the roller is provided with a square hole, and the limiting portion is interference-fitted with the square hole;

[0021] And / or, a stop portion is convexly provided on the circumferential side of the third gear, and the stop portion is located on one side of the limiting portion and abuts against an end surface of the roller.

[0022] The video conferencing camera of the technical solution of the present invention includes a housing, a lens assembly and a gear assembly disposed within the housing. The second gear of the gear assembly is engaged with the first gear and the roller, respectively, and the lens assembly is fixedly connected to the first gear. Therefore, when the roller is driven to rotate, the second gear, the first gear and the lens assembly can be driven to rotate to achieve angle adjustment of the lens assembly. Among them, the second gear plays a major transmission role. A first gasket is provided between at least one end face of the second gear and the cavity wall of the mounting cavity. The material of the first gasket is flexible, thereby increasing the friction between the second gear and the housing during rotation, thereby increasing the damping feeling, reducing the return difference between the gear assemblies, and further reducing noise and shaking problems that occur during angle adjustment, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1This is a structural diagram of an embodiment of a video conferencing camera of the present invention;

[0025] Figure 2 for Figure 1 An exploded view of the video conferencing camera shown;

[0026] Figure 3 for Figure 1 A transverse cross-sectional view of the video conferencing camera on a horizontal plane;

[0027] Figure 4 for Figure 1 A transverse cross-sectional view of the video conferencing camera on another horizontal plane;

[0028] Figure 5 for Figure 1 A schematic diagram of the structure of the second gear and the first gasket in the video conferencing camera shown;

[0029] Figure 6 for Figure 1 A schematic diagram of the structure of the second gear and the second gasket in the video conferencing camera shown;

[0030] Figure 7 for Figure 1 A schematic structural diagram of the first gear and the fixed cover in the video conferencing camera shown;

[0031] Figure 8 for Figure 7 A front view of the first gear and the fixed cover is shown;

[0032] Figure 9 for Figure 8 A transverse cross-sectional view of the first gear and the fixed cover is shown;

[0033] Figure 10 for Figure 1 A schematic diagram of the structure of the housing of the video conferencing camera shown;

[0034] Figure 11 for Figure 10 A structural schematic diagram of the housing from another perspective;

[0035] Figure 12 for Figure 1 A schematic diagram of the structure of the third gear in the video conferencing camera shown;

[0036] Figure 13 for Figure 1 The diagram shows the structure of the roller in the video conferencing camera.

[0037] Description of Figure Numbers:

[0038]

[0039]

[0040] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0044] In addition, in the present invention, descriptions such as "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] The present invention provides a video conferencing camera.

[0046] Please refer to Figures 1 to 3 In one embodiment of the present invention, a video conferencing camera 100 includes a housing 10, a gear assembly 50, and a lens assembly 30. The housing 10 is formed with a mounting cavity 10a.

[0047] The gear assembly 50 includes a first gear 51, a second gear 52, and a roller 54. The first gear 51, the second gear 52, and the roller 54 are spaced apart from each other and are rotatably connected to the cavity wall of the mounting cavity 10a. The second gear 52 is disposed between the first gear 51 and the roller 54 and is meshed with the first gear 51 and the roller 54 on both sides. A first gasket 55 is disposed between at least one end surface of the second gear 52 and the cavity wall of the mounting cavity 10a. The first gasket 55 is made of a flexible material.

[0048] The lens assembly 30 is provided with a first mounting portion 311 and a second mounting portion 312 opposite to each other. The first mounting portion 311 is connected to the rotation connection of the first gear 51. The second mounting portion 312 is rotatably connected to the side wall 12 of the mounting cavity 10a, and its axis is aligned with the rotation axis of the first gear 51.

[0049] The roller 54 is driven to rotate, thereby driving the second gear 52 , the first gear 51 and the lens assembly 30 to rotate, thereby achieving angle adjustment.

[0050] It is understood that the video conferencing camera 100 is mainly used in scenarios such as remote conferencing or training. In addition to the lens assembly 30, a speaker that cooperates with the lens to realize audio functions can also be set in the housing 10, which can achieve better video display and sound pickup effects. Specifically, the video conferencing camera 100 includes a housing 10 and a lens assembly 30 disposed therein. The housing 10 is used to provide support and protection for the lens assembly 30. When the video conferencing camera 100 is in use, it is placed upright on a table or platform. The lens assembly 30 is disposed therein and has a light collection direction toward the side of the housing 10. The angle adjustment here mainly adjusts the orientation of the lens assembly 30 in the horizontal direction, that is, to achieve the adjustment of the up and down pitch angle. Therefore, in order to facilitate assembly, the mounting cavity 10a formed in the housing 10 is a mounting cavity 10a with an opening, so that after the components are assembled, the cover body is used to cover the side of the housing 10 to complete the assembly of the entire device.

[0051] Here, the housing 10 has a rectangular cross-section, comprising a bottom wall 11, a top wall 13, and three side walls 12 connecting the bottom wall and the top wall 13, facilitating assembly and fixation of the lens assembly 30 and the gear assembly 50. Of course, in other embodiments, the cross-section of the housing 10 may also be circular, polygonal, or irregular in shape. The housing 10 may be made of plastic, which is lightweight and has good structural stability. The lens assembly 30 generally includes a fixed cover 31 and a front assembly 32 mounted thereto. The front assembly 32 may include a lens and control components. The fixed cover 31 is used to secure and cover the front assembly 32, cooperating with the housing 10 to protect it. Therefore, the fixed cover 31 here comprises a cylindrical cover body and a rectangular base body. The base body is fixed within the housing 10, and the lens can be mounted within the cover body. Structures such as the control panel are also located within the base body, resulting in a compact structure that saves space. The first mounting portion 311 and the second mounting portion 312 are both provided on the fixed cover 31, specifically on the peripheral side of the cover body, and the connecting line between the two is on its radial line and parallel to the horizontal plane, so that the lens assembly 30 rotates around the center line of the first mounting portion 311 and the second mounting portion 312 as the axis.

[0052] The lens assembly 30, as a primary component, is located in the center of the housing 10. Therefore, the first mounting portion 311 and the second mounting portion 312 are rotatably connected to the two opposing side walls 12, respectively. Furthermore, the gear assembly 50, which serves as both a driving and transmission mechanism, has a first gear 51 rotatably connected to the housing 10. By connecting the first mounting portion 311 to the first gear 51, driving the first gear 51 rotates the lens assembly 30. Therefore, the centerline of the rotatably connected structure of the first gear 51 and the centerline of the second mounting portion 312 are aligned. The first gear 51 can be circular, sector-shaped, or polygonal, without limitation. The second gear 52, located between the first gear 51 and the roller 54, is a crucial transmission element, and its stability is crucial to the stability of the rotational adjustment. The second gear 52 is a circular gear, meshing with the first gear 51 on one side and the roller 54 on the other. Of course, the first gear 51 and the roller 54 can be located on a radial line of the second gear 52, or they can be positioned at an angle to the centerline of the second gear 52. The first gear 51, the second gear 52, and the roller 54 can be rotatably connected to the housing 10 via an axial hole or by inserting a locking member 70, which is not limited here. In this way, the roller 54 is manually driven to rotate to drive the second gear 52, the first gear 51, and the lens assembly 30 to rotate, thereby achieving the up and down swinging of the lens assembly 30. A first gasket 55 is provided between at least one end face of the second gear 52 and the cavity wall of the mounting cavity 10a. The material of the first gasket 55 can be EVA (Ethylene Vinyl Acetate Copolymer, ethylene-vinyl acetate copolymer), silicone, or rubber, thereby increasing the friction between the second gear 52 and the housing 10 and enhancing the damping effect. Of course, there can be one or more first gaskets 55.

[0053] The video conferencing camera 100 according to the technical solution of the present invention includes a housing 10, a lens assembly 30 disposed within the housing 10, and a gear assembly 50. The second gear 52 of the gear assembly 50 meshes with the first gear 51 and the roller 54, respectively. The lens assembly 30 is fixedly connected to the first gear 51. Therefore, when the roller 54 is driven to rotate, the second gear 52, the first gear 51, and the lens assembly 30 are driven to rotate, thereby achieving angle adjustment of the lens assembly 30. The second gear 52 plays a primary transmission role. A first gasket 55 is disposed between at least one end face of the second gear 52 and the wall of the mounting cavity 10a. The first gasket 55 is made of a flexible material, thereby increasing friction between the second gear 52 and the housing 10 during rotation, thereby increasing damping and reducing return travel differences within the gear assembly 50. This provides a consistent feel and reduces noise and shaking during angle adjustment, thereby enhancing the user experience.

[0054] Please refer to Figure 2 、 Figures 4 to 6In a possible embodiment of the present application, a first connecting hole 125 is defined in the side wall 12 of the mounting cavity 10a, a first mounting bracket 15 is protruding from the bottom wall 11 of the mounting cavity 10a, a second connecting hole 151 is defined in the first mounting bracket 15, a through hole 521 is defined in the middle of the second gear 52, and an annular protrusion 522 is protruding from the opening edges at both ends of the through hole 521, the annular protrusion 522 respectively abuts against the side wall 12 of the mounting cavity 10a and the side wall 12 of the second mounting bracket 14, a locking member 70 passes through the through hole 521 and is locked in the second connecting hole 151, the second gear 52 is rotatably arranged relative to the locking member 70, and the first gasket 55 is arranged between the annular protrusion 522 and the second mounting bracket 14.

[0055] In this embodiment, to save space, the axial width of the second gear 52 is relatively small, occupying only a small portion of the width of the housing 10. Therefore, a first connecting hole 125 is defined in one sidewall 12 of the housing 10, and a first mounting bracket 15 protrudes from the center of the bottom wall 11. The first mounting bracket 15 defines a second connecting hole 151. The centerlines of the first connecting hole 125 and the second connecting hole 151 are aligned to ensure stable rotation of the second gear 52. A through hole 521 is defined in the center of the second gear 52. A locking member 70 penetrates the first connecting hole 125 and the through hole 521, and is then locked to the second connecting hole 151. Here, the first mounting bracket 15 can be a screw column 3112 or a tight-fitting column, enabling threaded connection with the locking member 70 for easier assembly. This rotational connection structure further facilitates assembly.

[0056] To ensure smoother rotation of the second gear 52, annular protrusions 522 are provided on both edges of the through-hole 521. These protrusions abut against the sidewall 12 and the first mounting bracket 15, thereby reducing the contact area with other structures and preventing the second gear 52 from colliding with other components during rotation. Furthermore, the aforementioned first gasket 55 is positioned between the protrusion 522 and the second mounting bracket 14. The first gasket 55 has a larger cross-sectional dimension than the protrusion 522 and is compatible with the first mounting bracket 15. Leveraging its material properties, it acts as a buffer and vibration reducer against the shaking of the second gear 52, effectively reducing shaking noise, thereby further achieving silent rotation without affecting the smoothness of rotation and improving the angle adjustment experience.

[0057] In a possible embodiment of the present application, the gear assembly 50 also includes at least two second gaskets 56, at least two second gaskets 56 are clamped between the other end face of the second gear 52 and the side wall 12 of the mounting cavity 10a, and at least two second gaskets 56 are symmetrically distributed on the end face of the second gear 52.

[0058] In this embodiment, to further enhance the damping feel, a gasket, referred to as a second gasket 56, is provided between the other end face of the second gear 52 and the side wall 12. Two second gaskets 56 are provided and are located at the end face of the second gear 52, symmetrically distributed around the periphery of the annular protrusion 522. These second gaskets 56 are thus capable of elastically contacting the housing 10, further increasing the contact area with the housing 10, reducing the swinging of the second gear 52 during rotation, improving rotational stability, and further reducing noise, thereby enhancing the feel. The second gasket 56 can be square in shape for ease of processing and can be attached to the other end face of the second gear 52. Of course, in other embodiments, the second gasket 56 can also be semicircular or fan-shaped. Furthermore, both the first gasket 55 and the second gasket 56 can be attached to the second gear 52 by gluing. Furthermore, to reduce weight, one end face of the second gear 52 is grooved.

[0059] Please refer to Figure 4 In a possible embodiment of the present application, the locking member 70 is a half-thread screw, the smooth rod portion 71 of the half-thread screw passes through the through hole 521, the threaded portion 72 of the half-thread screw is locked in the second connecting hole 151, and the through hole 521 and the smooth rod portion 71 of the half-thread screw are clearance-fitted.

[0060] In this embodiment, the locking element 70 is configured as a half-thread screw with a locking cap at the head, a polished rod 71 in the middle, and a threaded portion 72 at the end. This allows the polished rod 71 to fit snugly within the through hole 521, further reducing the wobble of the second gear 52. The locking cap also facilitates locking and removal. To facilitate assembly, the through hole 521 and the polished rod 71 are provided with a clearance fit within 0.05 ± 0.01 mm, effectively reducing movement, further improving stability, and reducing noise.

[0061] Please refer to Figure 2 、 Figure 8 and Figure 9 In a possible embodiment of the present application, the first gear 51 is a sector gear, and a first rotating shaft 511 is formed at one end of the sector gear. The second mounting portion 312 is a second rotating shaft. The opposite side walls 12 of the mounting cavity 10a are respectively formed with a first axial hole 122 and a second axial hole 123. The first rotating shaft 511 can be rotatably arranged in the first axial hole 122. The first mounting portion 311 is connected to the side of the first gear 51 away from the first rotating shaft 511. The second rotating shaft can be rotatably connected to the second axial hole 123. At least one of the first rotating shaft 511 and the second rotating shaft is provided with a sealing ring 60.

[0062] In this embodiment, the first gear 51 is a sector gear, allowing its center to be rotatably connected to the housing 10 while its edge meshes with the second gear 52. This further reduces its size, conserves space in the housing 10, and makes the video conferencing camera 100 more compact. The end of the sector gear facing away from the first mounting portion 311 forms a first rotating shaft 511, while the second mounting portion 312 forms a second rotating shaft. Rotation of the lens assembly 30 is achieved by the first rotating shaft 511 mating with the first axial hole 122, and the second rotating shaft mating with the second axial hole 123. Furthermore, a sealing ring 60, specifically an O-ring, V-ring, or U-ring, is sleeved around at least one of the first rotating shaft 511 and the second rotating shaft. During rotation of the lens assembly 30, the sealing ring 60 abuts against the opposing side walls 12, further increasing friction between the first rotating shaft 511 and the housing 10, and / or between the second rotating shaft and the housing 10, thereby enhancing the damping feel during angle adjustment. Of course, in other embodiments, the sealing ring 60 can also be a flexible cotton ring or a silicone ring.

[0063] Please combine Figure 3 In a possible embodiment of the present application, the first rotating shaft 511 and the second rotating shaft are both stepped shafts, and the step surfaces of the stepped shafts abut against the cavity wall of the mounting cavity 10a;

[0064] And / or, the radial compression rate of the sealing ring 60, the first rotating shaft 511 and the second rotating shaft is 17% to 25%.

[0065] Here, in order to further limit the position of the lens assembly 30 in the axial direction of the first rotating shaft 511 and the second rotating shaft, the first rotating shaft 511 and the second rotating shaft are set to be stepped shafts, and the stepped surfaces of the two are abutted on the side wall 12, which can ensure the assembly stability in the axial direction and improve the convenience of assembly. Of course, in order to further improve the convenience of assembly, one of the shaft holes is set as a C-shaped hole. In this way, for example, the second shaft hole 123 is a C-shaped hole. When the first rotating shaft 511 is inserted into the first shaft hole 122, the second rotating shaft can be inserted through the notch of the C-shaped hole. This avoids excessive squeezing of the housing 10 in the axial direction for insertion, improves assembly efficiency and reduces deformation of the housing 10.

[0066] In addition, the side wall 12 is further provided with a circular rib, which is arranged around the edge of the first axial hole 122, thereby limiting the sealing ring 60 and preventing it from deforming in the radial direction, thereby ensuring a better damping feeling.

[0067] On the basis of the above structure, in order to make the sealing ring 60 fit more tightly, the radial compression rate of the sealing ring 60 and the first rotating shaft 511 is set to 17% to 25%, for example, 17%, 19%, 21%, 23%, etc., so as to ensure the stability of the installation position of the sealing ring 60, further enhance the damping feeling of the rotation of the lens assembly 30, and further reduce the axial shaking noise of the lens assembly 30, reduce the impact on the shell 10, and ensure normal sound pickup.

[0068] Please combine Figure 8 and Figure 9 In a possible embodiment of the present application, the first gear 51 has a positioning hole 512 at a position away from the first rotating shaft 511, the first mounting portion 311 is formed with spaced positioning columns 3111 and screw columns 3112, the first gear 51 has a fixing hole 513 that cooperates with the screw column 3112, and the positioning column 3111 is inserted into the positioning hole 512.

[0069] In this embodiment, in order to further improve the connection stability, the first mounting portion 311 includes a positioning column 3111 and a screw column 3112 for threaded connection. Correspondingly, the first gear 51 is provided with a positioning hole 512 and a fixing hole 513. The positioning hole 512 is set away from the first rotating shaft 511, that is, the positioning column 3111 and the center lines of the second rotating shaft and the first rotating shaft 511 are on a straight line. At this time, the positioning column 3111 can be interference fit with the positioning hole 512 to ensure stability, or it can be clearance fit to achieve the positioning function and facilitate threaded connection. At the same time, a screw is used to pass through the fixing hole 513 and the screw column 3112 to achieve a threaded connection. Optionally, a positioning groove is formed on the first gear 51, and a fixing hole 513 is provided at the bottom of the positioning groove, so that the screw column 3112 can be inserted into the positioning groove and then threadedly connected to further improve assembly efficiency.

[0070] Please combine Figure 7 、 Figure 8 and Figure 10 In a possible embodiment of the present application, a support rib 313 is formed on a side of the lens assembly 30 facing the first gear 51, and the support rib 313 abuts against the middle portion of the first gear 51 in the radial direction thereof;

[0071] And / or, the inner side wall 12 of the mounting cavity 10a is formed with two first limiting ribs 124 arranged at intervals, and the lens assembly 30 is formed with a second limiting rib 314 on the side facing the first gear 51, and the second limiting rib 314 is located between the two first limiting ribs 124, and the extension direction is consistent with the extension direction of the two first limiting ribs 124. When the lens assembly 30 is rotated by a preset angle, at least one end of the second limiting rib 314 abuts against one of the first limiting ribs 124.

[0072] In this embodiment, since the middle part of the sector gear is fixed and the edge part is engaged with the second gear 52, a support rib 313 is provided on one side of the fixed cover 31. The support rib 313 can extend in an arc shape and adapt to the circumferential arc of the first gear 51, thereby abutting against the middle part of the first gear 51 in the radial direction to support the middle part, thereby improving its structural strength, preventing deformation, and extending its service life.

[0073] With or without the support ribs 313, in order to limit the rotation range of the lens assembly 30, a second limiting rib 314 is provided on one side of the fixed cover 31, and two spaced first limiting ribs 124 are provided on the side wall 12, and the second limiting rib 314 is located between the two. Therefore, when the fixed cover 31 rotates, the second limiting rib 314 also rotates and first abuts against one of the first limiting ribs 124 at at least one end. In this way, the lens assembly 30 is prevented from continuing to rotate, so that the rotation angle of the lens assembly 30 is limited within a certain range to facilitate cooperation with the shell 10.

[0074] Specifically, when the three are set to be parallel, the end face of the lens assembly 30 is parallel to the vertical plane, and the vertical distance between the second limiting rib 314 and the two first limiting ribs 124 is the same. The three are of the same length, thereby achieving the same preset angle for clockwise and counterclockwise rotation. In this case, the preset angle is set to 10°, meaning that the lens assembly 30 can rotate ±10°. To prevent interference, when rotating +10°, the edge of the first gear 51 is parallel to the side of the housing 10, that is, the opening edge of the mounting cavity 10a is parallel, thereby preventing interference with the cover or other structures.

[0075] Of course, in other embodiments, the rotation angle range can be limited by setting the vertical distance between the second limiting rib 314 and the two first limiting ribs 124, as well as the extension lengths of the three, or other structures can be used to limit the rotation range.

[0076] Please refer to Figures 10 to 12 In a possible embodiment of the present application, the gear assembly 50 further includes a third gear 53, a first C-shaped hole 121 is provided at an opening edge of the mounting cavity 10a, a second mounting bracket 14 is protrudingly provided on the inner wall of the mounting cavity 10a, and the second mounting bracket 14 is provided with a second C-shaped hole 141. Both ends of the third gear 53 can be rotatably passed through the first C-shaped hole 121 and the second C-shaped hole 141. The third gear 53 is respectively provided with a tooth portion 531 and a limiting portion 532 in the axial direction thereof, the tooth portion 531 is engaged with the second gear 52, and the roller 54 is sleeved and fixed on the limiting portion 532. The roller 54 is a metal part.

[0077] Here, in order to obtain a better hand feel, the roller 54 is set to be a metal part, and the roller 54 is meshed with the second gear 52 through the third gear 53. The third gear 53 and the second gear 52 can both be plastic parts, so as to obtain a better meshing effect. Specifically, the third gear 53 is in the shape of an elongated column, and its two ends respectively cooperate with the first C-shaped hole 121 and the second C-shaped hole 141 to achieve a rotational connection. Since the first C-shaped hole 121 and the second C-shaped hole 141 are both located at the opening of the mounting cavity 10a, the two ends of the third gear 53 can be inserted into the two C-shaped holes through the notch to achieve quick installation. Of course, here, the engagement amount between the first C-shaped hole 121 and the second C-shaped hole 141 and the end of the third gear 53 is 0.25, so that it can be easily inserted and will not fall out easily, thereby improving assembly stability and convenience. Similarly, the second mounting frame 14 can also be set in a compact structure to reduce the length of the third gear 53.

[0078] Of course, in other embodiments, sealing rings 60 can be provided at both ends of the third gear 53, in addition to the sealing rings 60 and gaskets provided on the first gear 51 and the second gear 52, respectively, to enhance the damping feel. Alternatively, sealing rings 60 can be provided at both ends of the third gear 53 alone to achieve both a damping feel and a vibration reduction effect.

[0079] Please refer to Figure 12 and Figure 13 In a possible embodiment of the present application, the cross section of the limiting portion 532 is square, the roller 54 is provided with a square hole 541, and the limiting portion 532 is interference-fitted with the square hole 541;

[0080] And / or, a stopper is convexly provided on the circumference of the third gear 53 , and the stopper is located on one side of the limiting portion 532 and abuts against one end surface of the roller 54 .

[0081] In this embodiment, to facilitate assembly and processing, the stopper 532 is configured as a square body, and the roller 54 has a square hole 541, thereby securing the two relative to each other. Of course, in other embodiments, the cross-section of the stopper 532 can also be triangular or polygonal, as long as it is non-circular, to prevent relative rotation between the two. Of course, in other embodiments, the stopper 532 can also be configured as a cylinder, and the relative securing of the two can be achieved through a key body.

[0082] On the basis of the above, in order to limit the roller 54 on the axis, a stop portion is also protruded on the circumferential side of the third gear 53. The stop portion is arranged on the side of the limiting portion 532 away from the end, thereby abutting against one end face of the roller 54 to prevent it from moving away from the limiting portion 532 and maintaining the stability of the connection with the third gear 53.

[0083] Furthermore, the transmission ratio between the first gear 51 and the third gear 53 can be limited to, for example, 1:6. This allows the first gear 51 to rotate ±10° by rotating the roller 54 ±60°, thereby improving the accuracy of angle adjustment. The video conferencing camera 100 of the present invention utilizes three gears and a two-stage transmission mechanism to achieve rotation of the lens assembly 30 by the roller 54. The provision of gaskets and silicone rings provides a superior adjustment feel, zero return error, and silent rotation. When used in audio and video cameras, this eliminates the risk of abnormal sound pickup or distortion, resulting in a reliable structural solution and consistent feel.

[0084] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A video conferencing camera, characterized in that: The video conferencing camera includes: a housing, wherein the housing is formed with a mounting cavity; A gear assembly comprising a first gear, a second gear, and a roller, wherein the first gear, the second gear, and the roller are spaced apart from each other and are rotatably connected to the cavity wall of the mounting cavity. The second gear is disposed between the first gear and the roller and is meshed with the first gear and the roller on both sides thereof. A first gasket is disposed between an end surface of the second gear and the cavity wall of the mounting cavity, and the first gasket is made of a flexible material. a lens assembly, the lens assembly comprising a first mounting portion and a second mounting portion opposite to each other, the first mounting portion being connected to a rotational connection of the first gear, the second mounting portion being rotatably connected to a side wall of the mounting cavity, and the axis of the second mounting portion being collinear with the rotational axis of the first gear; driving the roller to rotate, thereby driving the second gear, the first gear and the lens assembly to rotate, thereby achieving angle adjustment; A first connecting hole is provided on the side wall of the mounting cavity, a first mounting bracket is provided on the bottom wall of the mounting cavity, a second connecting hole is provided on the first mounting bracket, a through hole is provided in the middle of the second gear, and annular protrusions are provided on the opening edges at both ends of the through hole, and the annular protrusions respectively abut the side wall of the mounting cavity and the side wall of the first mounting bracket. A locking piece passes through the through hole and is locked in the second connecting hole. The second gear is rotatable relative to the locking piece. The first gasket is provided between the annular protrusion and the first mounting bracket, and the cross-sectional size of the first gasket is larger than the cross-sectional size of the annular protrusion.

2. The video conferencing camera according to claim 1, wherein: The gear assembly further includes at least two second gaskets, which are sandwiched between the other end surface of the second gear and the side wall of the mounting cavity. The at least two second gaskets are symmetrically distributed on the end surface of the second gear.

3. The video conferencing camera according to claim 2, wherein: The locking piece is a half-thread screw, the smooth rod portion of the half-thread screw passes through the through hole, the threaded portion of the half-thread screw is locked in the second connecting hole, and the through hole and the smooth rod portion of the half-thread screw are clearance-fitted.

4. The video conferencing camera according to any one of claims 1 to 3, wherein: The first gear is a sector gear, a first rotating shaft is formed at one end of the sector gear, the second mounting portion is a second rotating shaft, a first axial hole and a second axial hole are respectively formed on the opposite side walls of the mounting cavity, the first rotating shaft can be rotatably arranged in the first axial hole, the first mounting portion is connected to the side of the first gear away from the first rotating shaft, the second rotating shaft can be rotatably connected to the second axial hole, and at least one of the first rotating shaft and the second rotating shaft is provided with a sealing ring.

5. The video conferencing camera according to claim 4, wherein: The first rotating shaft and the second rotating shaft are both stepped shafts, and the step surfaces of the stepped shafts abut against the cavity wall of the mounting cavity; And / or, the radial compression rate of the sealing ring and the first rotating shaft and the second rotating shaft is 17% to 25%.

6. The video conferencing camera according to claim 4, wherein: The first gear is provided with a positioning hole at a position away from the first rotating shaft. The first mounting portion is formed with spaced positioning columns and screw columns. The first gear is provided with a fixing hole that cooperates with the screw column. The positioning column is inserted into the positioning hole.

7. The video conferencing camera according to claim 6, wherein: A supporting rib is formed on a side of the lens assembly facing the first gear, and the supporting rib abuts against a middle portion of the first gear in a radial direction; And / or, the inner side wall of the mounting cavity is formed with two first limiting ribs arranged at intervals, and the side of the lens assembly facing the first gear is formed with a second limiting rib, the second limiting rib is located between the two first limiting ribs, and the extension direction is consistent with the extension direction of the two first limiting ribs, when the lens assembly is rotated by a preset angle, at least one end of the second limiting rib abuts against one of the first limiting ribs.

8. The video conferencing camera according to claim 4, wherein: The gear assembly also includes a third gear, a first C-shaped hole is provided at an opening edge of the mounting cavity, a second mounting bracket is protruded from the inner wall of the mounting cavity, and a second C-shaped hole is provided on the second mounting bracket. Both ends of the third gear can be rotatably passed through the first C-shaped hole and the second C-shaped hole. The third gear is respectively provided with a tooth portion and a limit portion in the axial direction thereof, the tooth portion is engaged with the second gear, the roller is sleeved and fixed on the limit portion, and the roller is a metal part.

9. The video conferencing camera according to claim 8, wherein: The cross section of the limiting portion is square, the roller is provided with a square hole, and the limiting portion is interference-fitted with the square hole; And / or, a stop portion is convexly provided on the circumferential side of the third gear, and the stop portion is located on one side of the limiting portion and abuts against an end surface of the roller.

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