Camera

Abstract

The present application provides a camera, which includes a top cover, a body and a limiting ring. One of the limiting ring and the body is provided with a chute, and the other is provided with a slider located in the chute. During the first rotation stage of the horizontal rotation of the body, the slider moves along the chute and the limiting ring does not rotate; during the second rotation stage of the horizontal rotation of the body, the limiting ring rotates with the body. The top cover includes a first blocking portion, and the limiting ring includes a second blocking portion that abuts against the first blocking portion to limit the maximum rotation angle of the body. During the process of the first rotation stage, the maximum rotation angle of the body is defined as α, and during the process of the second rotation stage, when the first blocking portion abuts against the second blocking portion, the included angle between the first free end face of the first blocking portion along the circumferential direction of the top cover and the second free end face of the second blocking portion along the circumferential direction of the top cover is defined as β, and α is greater than β, so that the maximum rotation angle of the body is greater than 360°, solving the problem of the monitoring dead angle of the camera.

Description

Technical Field

[0001] This application relates to the technical field of video surveillance, and particularly to a camera. Background Art

[0002] The monitoring system is one of the most widely used systems in the security prevention system. Among them, the video monitoring system has strong prevention capabilities due to its intuitiveness, accuracy, timeliness, and rich information, and has been widely used in many occasions in recent years. The camera in the video monitoring system is an important component thereof, and is used to implement image acquisition.

[0003] When the existing camera rotates horizontally, its maximum rotation angle is limited by the resistance of a stop block, resulting in the maximum rotation angle being less than 360°, which easily causes monitoring dead angles. Summary of the Invention

[0004] This application provides a camera with a rotation angle greater than 360° to solve the problem of monitoring dead angles.

[0005] An embodiment of this application provides a camera, including: a top cover, a body, and a limit ring. The top cover includes a first resisting portion. The body is rotationally connected to the top cover to rotate horizontally along the circumferential direction of the top cover. A lens is provided on the body. One of the limit ring and the body is provided with a sliding groove, and the other is provided with a sliding block. The sliding block is located in the sliding groove. The horizontal rotation of the body includes a first rotation stage and a second rotation stage. In the first rotation stage, the sliding block moves along the sliding groove, and the limit ring does not rotate. In the second rotation stage, the sliding block resists against the inner wall of the sliding groove, and the limit ring rotates synchronously with the body. The limit ring includes a second resisting portion. When the first resisting portion resists against the second resisting portion, the maximum rotation angle of the body is limited. During the process of the first rotation stage, the maximum rotation angle of the body is defined as α. During the process of the second rotation stage, when the first resisting portion resists against the second resisting portion, the included angle between the first free end surface of the first resisting portion along the circumferential direction of the top cover and the second free end surface of the second resisting portion along the circumferential direction of the top cover is defined as β, and α is greater than β.

[0006] Further, the body includes a first boss. The limit ring is disposed outside the first boss. The first boss is provided with a plurality of first assembly holes. The camera includes a plurality of limit screws. The plurality of limit screws are respectively assembled into the plurality of first assembly holes, and the heads of the limit screws are located above the limit ring to prevent the limit ring from falling off.

[0007] Further, the limiting ring includes a base plate portion and a second boss protruding from the base plate portion. The second boss is provided with a through hole, the first boss is located within the through hole, the sliding groove is provided on the base plate portion, and the second resisting portion extends from the second boss.

[0008] Further, the fuselage is provided with a first shaft hole, the top cover includes a first rotating shaft, the first rotating shaft is assembled within the first shaft hole, the fuselage includes an oil seal assembled within the space enclosed by the first boss and surrounding the periphery of the first rotating shaft, and the head of the limiting screw is located above the oil seal to prevent the oil seal from falling off.

[0009] Further, the top cover includes a cover plate portion extending from the first rotating shaft. The limiting ring is located within the space enclosed by the cover plate portion and the fuselage. The first end of the first rotating shaft is assembled within the first shaft hole, and the second end opposite to the first end is an assembling portion for assembling and fixing with a bracket. A safety rope hook is provided on the cover plate portion.

[0010] Further, the camera includes a horizontal motor fixed to the fuselage, a first gear disk fixed to the first rotating shaft, and a second gear disk fixed to the motor shaft of the horizontal motor. The second gear disk meshes with the first gear disk. The fuselage is provided with a first cavity, and the horizontal motor, the first gear disk, and the second gear disk are located within the first cavity.

[0011] Further, the fuselage includes a power supply board located within the first cavity. The first rotating shaft is provided with a first wire passing hole for an external lead wire to pass through, and the external lead wire is electrically connected to the power supply board.

[0012] Further, the camera includes a lens assembly rotatably connected to the fuselage. The lens assembly can horizontally rotate relative to the fuselage along its circumferential direction and can rotate synchronously with the fuselage. The lens includes a first lens provided on the lens assembly. The fuselage includes a second rotating shaft, the lens assembly includes a second shaft hole, the second rotating shaft is assembled within the second shaft hole, the second rotating shaft is provided with a second wire passing hole for an internal connecting wire to pass through, the internal connecting wire electrically connects the first lens and the power supply board, and the first rotating shaft and the second rotating shaft are located on the upper and lower sides of the power supply board and their central axes are collinear.

[0013] Further, the camera includes a lens module fixed to the fuselage. The lens module includes a first housing, the lens includes a second lens fixed to the first housing, the fuselage includes a second housing, the first housing is located outside the second housing and is fixed to the second housing, and the lens assembly is located below the second housing.

[0014] Further, the top of the first housing is not higher than the top of the second housing, and the bottom of the first housing and the bottom of the second housing enclose a second cavity, and at least part of the lens assembly is located in the second cavity.

[0015] In the camera according to the embodiment of the present application, a limiting ring is provided on the body. One of the body and the limiting ring is provided with a sliding groove, and the other is provided with a sliding block. The horizontal rotation of the body includes a first rotation stage and a second rotation stage. In the first rotation stage, the sliding block moves along the sliding groove and the limiting ring does not rotate; in the second rotation stage, the sliding block abuts against the inner wall of the sliding groove, and the limiting ring rotates synchronously with the body; the limiting ring includes a second abutting portion. When the first abutting portion abuts against the second abutting portion, the maximum rotation angle of the body is limited; during the process of the first rotation stage, the maximum rotation angle of the body is defined as α, and during the process of the second rotation stage, when the first abutting portion abuts against the second abutting portion, the included angle between the first free end surface of the first abutting portion along the circumferential direction of the top cover and the second free end surface of the second abutting portion along the circumferential direction of the top cover is defined as β, and α is greater than β, thus solving the problem of the monitoring dead angle of the camera. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the camera according to the embodiment of the present application after being connected to the bracket;

[0017] Figure 2 is Figure 1 a schematic diagram of the camera shown in the figure, where the arrow direction in the figure is the rotation direction of the body relative to the top cover and the rotation direction of the lens assembly relative to the body;

[0018] Figure 3 is Figure 2 a schematic cross-sectional view of the camera shown in the figure;

[0019] Figure 4 is Figure 3 an enlarged view of the circled part at A in the schematic cross-sectional view shown in the figure;

[0020] Figure 5 is Figure 3 an enlarged view of the circled part at B in the schematic cross-sectional view shown in the figure;

[0021] Figure 6 is Figure 2 another schematic cross-sectional view of the camera shown in the figure, where only the top cover and a part of the body are shown;

[0022] Figure 7 is Figure 2 a schematic diagram of the external cable, top cover, limiting ring, oil seal, bearing, upper cover of the body and the first gear disk of the camera after being assembled;

[0023] Figure 8 isFigure 7 Schematic diagram of the external cable, top cover, limit ring, oil seal, bearing, upper body cover and first gear disc of the shown camera before assembly;

[0024] Figure 9 is Figure 7 Cross-sectional schematic diagram of the shown schematic diagram;

[0025] Figure 10 is Figure 8 Cross-sectional schematic diagram of the external cable, top cover, limit ring and upper body cover after assembly;

[0026] Figure 11 is Figure 8 Schematic diagram of the shown top cover;

[0027] Figure 12 is Figure 11 Schematic diagram of another view angle of the shown top cover;

[0028] Figure 13 is Figure 11 Cross-sectional schematic diagram of the shown top cover;

[0029] Figure 14 is Figure 8 Schematic diagram of the shown upper body cover;

[0030] Figure 15 is Figure 14 Cross-sectional schematic diagram of the shown upper body cover;

[0031] Figure 16 is Figure 8 Schematic diagram of the shown limit ring;

[0032] Figure 17 is Figure 16 Cross-sectional schematic diagram of the limit ring;

[0033] Figure 18 is Figure 8 Schematic diagram of the upper body cover and the limit ring after assembly, where the slider is at the leftmost side of the chute;

[0034] Figure 19 is Figure 18 Top view of the shown schematic diagram;

[0035] Figure 20 is Figure 18 Cross-sectional schematic diagram of the shown schematic diagram, and the arrow direction in the figure is the direction of the body rotating with the limit ring;

[0036] Figure 21 is Figure 8 Schematic diagram of the upper body cover and the limit ring after assembly, where the slider is at the rightmost side of the chute;

[0037] Figure 22 is Figure 21 the top view of the schematic diagram shown;

[0038] Figure 23 is Figure 21 the sectional schematic diagram of the schematic diagram shown, and the direction of the arrow in the figure is the direction in which the fuselage rotates with the limit ring. Specific Embodiments

[0039] Here, the technical solutions in the embodiments (or "embodiment modes") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description involves the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0040] If there are terms related to directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), then such terms are only used to explain the relative positional relationships and movement conditions between components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, then the directional indication or positional relationship also changes accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be understood as indicating or implying relative importance.

[0041] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the camera in the embodiment mode of the present application includes a top cover 1, a fuselage 2, a limit ring 3 and a lens assembly 4. The top cover 1 is fixed to a bracket 51, and the bracket 51 is fixed to a wall or the like to achieve the fixation of the camera.

[0042] A lens is provided on the fuselage 2. The fuselage 2 is rotatably connected to the top cover 1 to horizontally rotate along the circumferential direction of the top cover 1 to adjust the monitoring range of the lens.

[0043] In some embodiment modes, the lens includes a first lens 41 and a second lens 61. In other embodiment modes, the lens may only include one of the first lens 41 and the second lens 61.

[0044] In some embodiment modes, the second lens 61 is a panoramic lens for panoramic monitoring.

[0045] See Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6, in some embodiments, the top cover 1 includes a first rotating shaft 11, the fuselage 2 is provided with a first shaft hole 21, and the first rotating shaft 11 is assembled in the first shaft hole 21 to realize the rotational connection between the fuselage 2 and the top cover 1. The first rotating shaft 11 is provided with a first wire passing hole 111 for the external wire 52 to pass through.

[0046] The external wire 52 and the rotating shaft 11 can be fixed by means of screw connection or gluing.

[0047] In some embodiments, the fuselage 2 includes a second outer shell 22, and the first shaft hole 21 is provided at the top of the second outer shell 22. The second outer shell 22 encloses a first cavity 221. The first shaft hole 21 communicates with the first cavity 221. The camera includes a horizontal motor 71 located in the first cavity 221 to drive the fuselage 2 to rotate relative to the top cover 1.

[0048] In some embodiments, the horizontal motor 71 is fixed to the fuselage 2, and they are relatively stationary. For example, it is fixed to the second outer shell 22.

[0049] In some embodiments, the camera includes a lens module 6 fixed to the fuselage 2. The lens module 6 includes a first outer shell 62, and the second lens 61 is fixed to the first outer shell 62. The first outer shell 62 is located outside the second outer shell 22 and fixed to the second outer shell 22. The lens assembly 4 is located below the second outer shell 22, and the lens module 6 is located obliquely above the lens assembly 4. The lens module 6 is modular, which is convenient for installation and disassembly, improves the assembly efficiency, reduces the cost, and is also convenient for maintenance.

[0050] In some embodiments, the top of the first outer shell 62 is not higher than the top of the second outer shell 22. The bottom of the first outer shell 62 and the bottom of the second outer shell 22 enclose a second cavity 223, and the second cavity 223 is located below the first cavity 221. At least part of the lens assembly 4 is located in the second cavity 223.

[0051] In some embodiments, the surface where the first outer shell 62 is docked with the second outer shell 22 is inclined relative to the horizontal direction. After the lens module 6 is assembled to the fuselage 2, the second lens 61 is inclined relative to the horizontal direction, and the second lens 61 can be inclined relative to the horizontal direction without manual adjustment, which is simple and convenient to operate.

[0052] In some embodiments, the second housing 22 includes an upper body housing 224 and a lower body housing 225 fixed to the upper body housing 224. The upper body housing 224 is located above the lower body housing 225 and encloses the first cavity 221 with the lower body housing 225. The first shaft hole 21 is provided on the upper body housing 224. The first housing 62 is fixed to the lower body housing 225, and the bottom of the first housing 62 and the bottom of the lower body housing 225 enclose the second cavity 223.

[0053] In some embodiments, the upper body housing 224 and the lower body housing 225 can also be inserted and fixed in the horizontal direction to form the first cavity 221. The first shaft hole 21 is provided on the upper body housing 224 or the lower body housing 225 or is jointly enclosed by the upper body housing 224 and the lower body housing 225.

[0054] In some embodiments, the body 2 includes a power supply board 24 located in the first cavity 221. The external cable 52 is electrically connected to the power supply board 24. The power supply board 24 is arranged in the first cavity 221 of the body 2, and the top cover 1 does not need to be provided with a cavity for accommodating the power supply board 24, reducing the height of the top cover 1 and the height of the camera, increasing the aesthetics and practicality; at the same time, the amount of the external cable 52 and the internal connection wires is also reduced, saving costs; furthermore, the structure of the top cover 1 is simple, reducing the processing cost and the assembly cost, and also making the structure of the camera more compact.

[0055] The second housing 22 is provided with a through hole 222 communicating with the first cavity 221 for a first connection wire (not shown) to pass through, and the first connection wire is electrically connected to the lens module 6 and the power supply board 24.

[0056] In some embodiments, the first lens 41 is arranged on the lens assembly 4, and the lens assembly 4 is connected to the body 2 to horizontally rotate relative to the top cover 1 following the body 2 to adjust the monitoring range of the first lens 41.

[0057] In some embodiments, the lens assembly 4 is rotatably connected to the body 2 to horizontally rotate along the circumferential direction of the body 2 to adjust the monitoring range of the first lens 41.

[0058] See Figure 3 and Figure 5 In some embodiments, the body 2 includes a second rotating shaft 226, the lens assembly 4 includes a second shaft hole 42, and the second rotating shaft 226 is assembled in the second shaft hole 42 to realize the rotational connection between the lens assembly 4 and the body 2.

[0059] In some embodiments, the second rotating shaft 226 is provided with a second wire passing hole 2261 for an internal connecting wire to pass through. The second wire passing hole 2261 communicates with the first cavity 221. The internal connecting wire is electrically connected to the first lens 41 and the power supply board 24. The first rotating shaft 11 and the second rotating shaft 226 are located on the upper and lower sides of the power supply board 24 and their central axes are collinear to increase the stability of the camera.

[0060] The second rotating shaft 226 can also be disposed on the lens assembly 4. Correspondingly, the second shaft hole 42 is disposed on the body 2.

[0061] In some embodiments, the second rotating shaft 226 is disposed on the lower housing 225 of the body. The second rotating shaft 226 can be integrally provided with the lower housing 225 of the body or assembled to the lower housing 225 of the body.

[0062] In some embodiments, the lens assembly 4 includes a fixing frame 43 and a sphere 44 connected to the fixing frame 43. The first lens 41 is disposed on the sphere 44. The fixing frame 43 is rotatably connected to the body 2 to horizontally rotate along the circumferential direction of the body 2. The sphere 44 drives the first lens 41 to pitch relative to the fixing frame 43 to adjust the monitoring range of the first lens 41.

[0063] In some embodiments, when the second lens 61 faces the same direction as the first lens 41, the first housing 62 is completely located in front of the sphere 44.

[0064] In some embodiments, the fixing frame 43 includes a horizontal portion 431 and a pair of ear portions 432 connected to the horizontal portion 431. The sphere 44 is located in the space surrounded by the horizontal portion 431 and the pair of ear portions 432. Opposite ends of the sphere 44 are respectively rotatably connected to the pair of ear portions 432.

[0065] In some embodiments, the horizontal portion 431 encloses a third cavity 4311. The second shaft hole 42 communicates with the third cavity 4311. The second wire passing hole 2261 communicates the third cavity 4311 with the first cavity 221.

[0066] The lens assembly 4 includes a motor (not shown) located in the third cavity 4311 to drive the horizontal rotation of the lens assembly 4 relative to the body 2.

[0067] When the second rotating shaft 226 is disposed on the lens assembly 4, the motor can also be located in the first cavity 221.

[0068] The lens assembly 4 includes a vertical motor (not shown) located within the third cavity 4311. The vertical motor drives the pitching motion of the sphere 44.

[0069] In some embodiments, one end of the sphere 44 is provided with a shaft portion (not shown), and the motor shaft of the vertical motor is connected to the shaft portion through a pulley.

[0070] The vertical motor may also be disposed within the space enclosed by the sphere 44.

[0071] Refer Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 , in some embodiments, the camera includes a first gear disk 72 fixed to the first rotating shaft 11 and a second gear disk 73 fixed to the motor shaft of the horizontal motor 71. The first gear disk 72 is stationary relative to the top cover 1. The second gear disk 73 meshes with the first gear disk 72 so that the horizontal motor 71 can drive the fuselage 2 to rotate horizontally relative to the top cover 1. The first gear disk 72 and the second gear disk 73 are located within the first cavity 221.

[0072] The first gear disk 72 and the second gear disk 73 may also be connected through a pulley to transmit force.

[0073] In some embodiments, the first gear disk 72 is located below the first rotating shaft 11 and is fixed thereto through a first screw 721.

[0074] The camera further includes a bearing 74 and a oil seal 75. The bearing 74 and the oil seal 75 are sleeved around the periphery of the first rotating shaft 11. The oil seal 75 may be located within the first shaft hole 21 to prevent water leakage at the first shaft hole 21. The bearing 74 is located within the first shaft hole 21, with its inner ring fixed to the first rotating shaft 11 and its outer ring fixed to the fuselage 2.

[0075] The camera further includes a bearing pressure plate 76 for pressing the outer ring of the bearing 74 to prevent the bearing 74 from moving axially. The first gear disk 72 presses the inner ring of the bearing 74 to prevent the bearing 74 from moving axially. The camera further includes an end cover 77 for pressing the inner ring of the bearing 74 to prevent the bearing 74 from moving axially.

[0076] Refer Figure 10 、 Figure 11 、 Figure 12 and Figure 13, the top cover 1 includes a cover plate portion 12 extending from the first rotating shaft 11. The cover plate portion 12 includes a top plate 121 connected to the first rotating shaft 11 and a side plate 122 extending from the top plate 121 towards the fuselage 2.

[0077] The first end 112 of the first rotating shaft 11 is assembled in the first shaft hole 21, and the second end 113 opposite to the first end 112 is an assembly portion for assembling and fixing with the bracket 51. A safety rope hook 123 is provided on the cover plate portion 12.

[0078] The top cover 1 further includes a convex column 124 extending from the cover plate portion 12 and a first resisting portion 125 provided on the convex column 124. The first resisting portion 125 extends from the convex column 124 towards the first rotating shaft 11.

[0079] In some embodiments, the convex column 124 extends from the top plate 121 and is located within the space enclosed by the top plate 121 and the side plate 122. The lowest end of the convex column 124 is higher than the lowest end of the side plate 122 to hide the convex column 124.

[0080] In some embodiments, the convex columns 124 are provided in plurality, and the first resisting portion 125 is provided on one of the convex columns 124.

[0081] In some embodiments, the plurality of convex columns 124 are sequentially arranged along the circumferential direction of the top plate 121.

[0082] In some embodiments, the convex column 124 is cylindrical. The convex column 124 can also be in a square shape or other shapes.

[0083] In some embodiments, the first resisting portion 125 is flat, and the length in the direction towards the first rotating shaft 11 is greater than the thickness in the circumferential direction along the first rotating shaft 11.

[0084] In some embodiments, the first resisting portion 125 is connected to the top plate 121 to increase the strength of the first resisting portion 125. In other embodiments, the first resisting portion 125 can also be disconnected from the top plate 121.

[0085] See Figure 14 、 Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 、 Figure 19 、 Figure 20 、 Figure 21 、 Figure 22 and Figure 23, the limiting ring 3 is rotatably connected to the fuselage 2. The limiting ring 3 is located in the space surrounded by the cover plate portion 12 and the fuselage 2 to hide the limiting ring 3. The fuselage 2 includes a slider 25, and the limiting ring 3 is provided with a chute 31. The slider 25 is received in the chute 31.

[0086] The horizontal rotation of the fuselage 2 includes a first rotation stage and a second rotation stage. During the first rotation stage, the slider 25 moves along the chute 31 and the limiting ring 3 does not rotate. During the second rotation stage, the slider 25 abuts against the inner wall of the chute 31, and the limiting ring 3 rotates synchronously with the fuselage 2.

[0087] The limiting ring 3 includes a second abutting portion 32. When the first abutting portion 125 abuts against the second abutting portion 32, the maximum rotation angle of the fuselage 2 is limited.

[0088] During the process of the first rotation stage, the maximum rotation angle of the fuselage 2 is defined as α. During the process of the second rotation stage, when the first abutting portion 125 abuts against the second abutting portion 32, the included angle between the first free end face 1251 of the first abutting portion 125 along the circumferential direction of the top cover 1 and the second free end face 321 of the second abutting portion 32 along the circumferential direction of the top cover 1 is defined as β, and α is greater than β.

[0089] See Figure 18 , Figure 19 and Figure 20 , the slider 25 is located at the rightmost end of the chute 31. When the first abutting portion 125 and the second abutting portion 32 do not abut, the fuselage 2 can drive the limiting ring 3 to rotate counterclockwise. See Figures 21 to 23 , the slider 25 is located at the leftmost end of the chute 31. When the first abutting portion 125 and the second abutting portion 32 do not abut, the fuselage 2 can drive the limiting ring 3 to rotate clockwise.

[0090] The limiting ring 3 includes a second abutting portion 32. When the first abutting portion 125 abuts against the second abutting portion 32, the maximum rotation angle of the fuselage 2 is limited to prevent the outer throw line 52 from being twisted or broken due to continuous rotation of the fuselage 2.

[0091] During the process of the slider 25 moving along the chute 31, the maximum rotation angle of the fuselage 2 is defined as α, and the included angle between the first free end face 1251 of the first abutting portion 125 along the circumferential direction of the top cover 1 and the second free end face 321 of the second abutting portion 32 along the circumferential direction of the top cover 1 is defined as β, and α is greater than β.

[0092] Thus, when the maximum rotation angle of the fuselage 2 is α, the limit ring 3 does not rotate. Then, the maximum rotation angle of the fuselage 2 with the limit ring 3 is 360° - β. At this time, the first resisting portion 125 abuts against the second resisting portion 32. Then, the maximum rotation angle of the fuselage 2 is equal to α + 360° - β. Since α is greater than β, the maximum rotation angle of the fuselage 2 is greater than 360°, solving the problem of the camera's monitoring dead angle. The maximum rotation angle of the fuselage 2 can be set by designing the values of the angles α and β to meet the requirements of different scenarios.

[0093] The first free end face 1251 is the face where the first resisting portion 125 does not abut against the second resisting portion 32 along its thickness direction. The second free end face 321 is the face where the second resisting portion 32 does not abut against the first resisting portion 125 along its thickness direction.

[0094] In other embodiments, the slider 25 can be arranged on the limit ring 3. Correspondingly, the chute 31 is arranged on the fuselage 2, for example, on the upper housing 224 of the outer shell 22 of the fuselage 2.

[0095] In some embodiments, the fuselage 2 includes a first boss 26, and the limit ring 3 is arranged around the outside of the first boss 26. The first boss 26 is provided with a plurality of first assembly holes 261. The camera includes a plurality of limit screws 81, and the plurality of limit screws 81 are respectively assembled into the plurality of first assembly holes 261, and the heads 811 of the limit screws 81 are located above the limit ring 3 to prevent the limit ring 3 from falling off. There is a gap between the head 811 and the limit ring 3 to avoid affecting the rotation of the limit ring 3.

[0096] In some embodiments, the oil seal 75 is located in the space surrounded by the first boss 26. The space surrounded by the first boss 26 is located above the first shaft hole 21 and communicates with the first shaft hole 21. The heads 811 of the limit screws 81 are located above the oil seal 75 to prevent the oil seal 75 from falling off. The limit screws 81 can both limit the limit ring 3 and the oil seal 75, making the structure of the camera simple, saving space and reducing the assembly process.

[0097] In some embodiments, the first boss 26 is annular.

[0098] In some embodiments, the fuselage 2 includes a plurality of protrusions 27 extending outward from the first boss 26 along its radial direction. The plurality of protrusions 27 are arranged in sequence along the circumferential direction of the first boss 26.

[0099] In some embodiments, the fuselage 2 includes a plurality of lugs 28 extending outward from the first boss 26 in its radial direction. The plurality of lugs 28 are sequentially arranged in the circumferential direction of the first boss 26. The first assembly hole 261 is provided in the lug 28. The arrangement of the lug 28 reduces the thickness of the first boss 26.

[0100] In some embodiments, the limiting ring 3 includes a substrate portion 33 and a second boss 34 protruding from the substrate portion 33. The substrate portion 33 is annular and surrounds the outside of the second boss 34. The second boss 34 is provided with a through hole 341. The first boss 26 is located in the through hole 341. The sliding groove 31 is provided in the substrate portion 33, and the second resisting portion 32 extends from the second boss 34.

[0101] In some embodiments, the second boss 34 is annular and surrounds the periphery of the plurality of bumps 27. The arrangement of the bumps 27 can prevent the limiting ring 3 from moving in the radial direction and can reduce the thickness of the first boss 26.

[0102] In some embodiments, the sliding groove 31 is arc-shaped and is arranged in the circumferential direction of the second boss 34.

[0103] In some embodiments, the second resisting portion 32 is located at one end of the sliding groove 31 and the two partially overlap in the circumferential direction of the limiting ring 3.

[0104] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included within the scope of protection of this application.

Claims

1. A camera, characterized in that, Comprising: A top cover including a first resisting portion; A fuselage rotatably connected to the top cover to horizontally rotate along the circumferential direction of the top cover, and a lens is provided on the fuselage; A limiting ring, one of the limiting ring and the fuselage is provided with a sliding groove, and the other is provided with a sliding block. The sliding block is located in the sliding groove. The horizontal rotation of the fuselage includes a first rotation stage and a second rotation stage. During the first rotation stage, the sliding block moves along the sliding groove and the limiting ring does not rotate; during the second rotation stage, the sliding block abuts against the inner wall of the sliding groove, and the limiting ring rotates synchronously with the fuselage; the limiting ring includes a second resisting portion. When the first resisting portion abuts against the second resisting portion, the maximum rotation angle of the fuselage is limited; during the process of the first rotation stage, the maximum rotation angle of the fuselage is defined as α, and during the process of the second rotation stage, when the first resisting portion abuts against the second resisting portion, the included angle between the first free end surface of the first resisting portion along the circumferential direction of the top cover and the second free end surface of the second resisting portion along the circumferential direction of the top cover is defined as β, and α is greater than β.

2. The camera according to claim 1, wherein The fuselage includes a first boss, the limiting ring is disposed outside the first boss, the first boss is provided with a plurality of first assembly holes, the camera includes a plurality of limiting screws, and the plurality of limiting screws are respectively assembled into the plurality of first assembly holes and the heads of the limiting screws are located above the limiting ring to prevent the limiting ring from falling off.

3. The camera according to claim 2, characterized in that, The limiting ring includes a substrate portion and a second boss protruding from the substrate portion. The second boss is provided with a through hole, the first boss is located in the through hole, the sliding groove is disposed on the substrate portion, and the second resisting portion is formed by extending from the second boss.

4. The camera according to claim 2, wherein The fuselage is provided with a first shaft hole, the top cover includes a first rotating shaft, the first rotating shaft is assembled in the first shaft hole, the fuselage includes an oil seal assembled in the space surrounded by the first boss and surrounding the periphery of the first rotating shaft, and the head of the limiting screw is located above the oil seal to prevent the oil seal from falling off.

5. The camera according to claim 4, characterized in that, The top cover includes a cover plate portion extending from the first rotating shaft. The limiting ring is located in the space surrounded by the cover plate portion and the fuselage. The first end of the first rotating shaft is assembled in the first shaft hole, and the second end opposite to the first end is an assembly portion for assembling and fixing with a bracket. A safety rope hook is provided on the cover plate portion.

6. The camera according to claim 4, characterized in that, The camera includes a horizontal motor fixed to the fuselage, a first gear disk fixed to the first rotating shaft, and a second gear disk fixed to the motor shaft of the horizontal motor. The second gear disk meshes with the first gear disk. The fuselage is provided with a first cavity, and the horizontal motor, the first gear disk and the second gear disk are located in the first cavity.

7. The camera according to claim 6, wherein The fuselage includes a power supply board located in the first cavity. The first rotating shaft is provided with a first wire passing hole for an external lead wire to pass through, and the external lead wire is electrically connected to the power supply board.

8. The camera according to claim 7, characterized in that, The camera includes a lens assembly rotatably connected to the body. The lens assembly can rotate horizontally along its circumferential direction relative to the body and can rotate synchronously with the body. The lens includes a first lens disposed on the lens assembly. The body includes a second rotating shaft, and the lens assembly includes a second shaft hole. The second rotating shaft is assembled in the second shaft hole. The second rotating shaft is provided with a second wire passing hole for an internal connection wire to pass through. The internal connection wire is electrically connected to the first lens and the power supply board. The first rotating shaft and the second rotating shaft are located on the upper and lower sides of the power supply board and their central axes are collinear.

9. The camera according to claim 8, characterized in that, The camera includes a lens module fixed to the body. The lens module includes a first housing. The lens includes a second lens fixed to the first housing. The body includes a second housing. The first housing is located outside the second housing and is fixed to the second housing. The lens assembly is located below the second housing.

10. The camera according to claim 9, characterized in that, The top of the first housing is not higher than the top of the second housing. The bottom of the first housing and the bottom of the second housing enclose a second cavity, and at least part of the lens assembly is located in the second cavity.

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