A camera

Abstract

The utility model relates to camera technical field, concretely relates to a camera. The camera includes: horizontal transfer seat and pitch ball head, horizontal transfer seat includes base, and with base rotationally connected main body, is provided with horizontal rotating mechanism in the main body, and horizontal rotating mechanism is connected with main body and base respectively, to make main body relative base along horizontal direction rotation, pitch ball head is provided with vertical rotating mechanism and camera in, is formed with arc containing groove on the main body, still oppositely set up support frame on the main body, and two support frames stretch out from the opposite sides of arc containing groove, and pitch ball head is located between two support frames, and with support frame rotationally connected, vertical rotating mechanism is connected with pitch ball head and one support frame respectively, to make pitch ball head relative support frame along vertical direction rotation. Adopt above -mentioned mode, can rotate in horizontal direction and pitch direction, to eliminate observation dead angle, promote the applicability when using.

Description

Technical Field

[0001] This utility model relates to the field of camera technology, and in particular to a camera. Background Technology

[0002] With the development of camera technology, cameras have been widely used, especially in public places, where they play an important role in maintaining order and security.

[0003] In surveillance systems, cameras, as the front end of the system, are expected to capture as wide an image area as possible. Currently, rotatable cameras are widely used, capturing images of various monitored areas through periodic rotation. However, traditional cameras have limitations in their horizontal and vertical rotation angles, resulting in blind spots in the captured images. Utility Model Content

[0004] This utility model provides a camera that can rotate in both horizontal and vertical directions to eliminate blind spots and improve its applicability.

[0005] This utility model discloses a camera, including: a horizontal rotating base and a pitch ball head; the horizontal rotating base includes a base and a main body rotatably connected to the base, the main body is provided with a horizontal rotation mechanism, and the horizontal rotation mechanism is connected to the main body and the base respectively, so that the main body rotates in a horizontal direction relative to the base; the pitch ball head is provided with a vertical rotation mechanism and a camera; an arc-shaped positioning groove is formed on the main body, and support frames are also provided opposite to each other on the main body, the two support frames extend from opposite sides of the arc-shaped positioning groove, the pitch ball head is located between the two support frames and is rotatably connected to the support frames, and the vertical rotation mechanism is connected to the pitch ball head and one of the support frames respectively, so that the pitch ball head rotates in a vertical direction relative to the support frame.

[0006] Optionally, at least one of the support frames is provided with an arc-shaped limiting groove, and the pitch ball head is provided with a locking protrusion that engages with the arc-shaped limiting groove, so that the rotation angle of the pitch ball head relative to the support frame is between 0° and 180°; wherein, when the pitch ball head is at the 0° position, the camera faces into the arc-shaped limiting groove, and when the pitch ball head is at the 180° position, the camera faces the side away from the base.

[0007] Optionally, the pitch ball head includes a front ball head shell and a rear ball head shell that interlock with each other, the camera is fixedly connected to the front ball head shell, and the vertical rotation mechanism is fixedly connected to the rear ball head shell.

[0008] Optionally, the vertical rotation mechanism includes a vertical motor, the vertical motor includes a motor body and an output shaft connected to the motor body, the output shaft is engaged with one of the support frames, and the motor body is fixedly connected to the ball head rear shell.

[0009] Optionally, a cover is provided on the side of the support frame that is opposite to it.

[0010] Optionally, the horizontal rotation mechanism includes a horizontal motor fixedly connected to the main body, and a gear set connected to the horizontal motor, the gear set including a final stage transmission gear fixedly connected to the base.

[0011] Optionally, the final stage transmission gear includes a gear body and a connecting portion disposed on one side of the gear body in the thickness direction. The main body and the base are connected by a bearing. The connecting portion passes through the inner ring of the bearing and is fixedly connected to the base. The inner ring of the bearing is connected to the base, and the outer ring of the bearing is connected to the main body. The connecting portion is also provided with a protruding edge, which is located on the side of the bearing away from the base, and the protruding edge abuts against the inner ring of the bearing.

[0012] Optionally, the main body includes a connecting seat and a frustum-shaped housing connected to the connecting seat, the arc-shaped placement groove being formed on the frustum-shaped housing, and the bearing being connected to the connecting seat.

[0013] Optionally, a limiting platform is provided on the other side of the gear body in the thickness direction, and a limiting switch is provided on the connecting seat. When the final stage transmission gear rotates, the limiting platform can contact the limiting switch. Or, a first limiting part is provided on the base, and a second limiting part is provided on the connecting seat. When the main body rotates relative to the base, the first limiting part can abut against the second limiting part.

[0014] Optionally, the arc-shaped groove is inclined on the main body, and the distance from one edge of the arc-shaped groove to the bottom of the main body is less than the distance from the other edge of the arc-shaped groove to the bottom of the main body.

[0015] The beneficial effects of the camera provided in this embodiment are as follows: By rotatably connecting the base and the main body, and with the horizontal rotation mechanism connected to both the main body and the base, a driving force is generated when the horizontal rotation mechanism is in operation, causing the main body to rotate horizontally relative to the base. The base serves as the fixed foundation for the entire camera. In practical applications, it is typically mounted on a fixed carrier such as a wall, bracket, or desktop, remaining stationary. When the main body rotates relative to the base, the pitch ball joint, connected to the main body via a support frame, rotates synchronously with the main body, thereby enabling the pitch ball joint to switch the viewing angle in the horizontal direction, thus allowing the camera to adjust its horizontal angle. Furthermore, the arc-shaped mounting groove on the main body provides a certain amount of space for the pitch ball joint, making the overall camera more compact. Meanwhile, two support frames, positioned opposite each other on the main body, extend from both sides of the arc-shaped mounting slot. The pitch ball head is clamped between the two support frames and rotatably connected to them. This arrangement ensures the installation stability of the pitch ball head without restricting its vertical rotational freedom. When the vertical rotation mechanism inside the pitch ball head operates, it can drive the pitch ball head to rotate vertically relative to the support frames via power output, thereby achieving adjustment of the camera's pitch angle. By combining the horizontal rotating base and the pitch ball head, rotation in both the horizontal and pitch directions is possible, eliminating blind spots and improving usability during use. Attached Figure Description

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is one of the structural schematic diagrams of the camera provided in the embodiments of this utility model; Figure 2 This is the second structural schematic diagram of the camera provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the connection between the main body and the support frame provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the structure of the horizontal rotating base provided in this embodiment of the utility model; Figure 5 This is an exploded view of the pitch ball head provided in this embodiment of the utility model; Figure 6 This is a cross-sectional schematic diagram of the pitch ball joint provided in an embodiment of this utility model; Figure 7 This is a schematic diagram of the structure of the horizontal rotation mechanism provided in this embodiment of the utility model; Figure 8 This is a schematic diagram of the structure of the base provided in an embodiment of the present utility model; Figure 9 This is a schematic diagram of the structure of the connector provided in an embodiment of the present utility model.

[0017] The labels for the attached figures are as follows: 100. Camera; 110. Horizontal rotating base; 112. Base; 1122. First limiting part; 114. Main body; 1141. Arc-shaped positioning groove; 1142. Connecting seat; 1142a. Second limiting part; 1144. Frustum-shaped housing; 1146. Limit switch; 120. Pitch ball joint; 122. Locking protrusion; 124. Ball joint front housing; 126. Ball joint rear housing; 130. Horizontal rotation mechanism; 1 32. Horizontal motor; 134. Gear set; 136. Final stage transmission gear; 1362. Gear body; 1364. Connecting part; 1366. Protruding edge; 1368. Limiting platform; 140. Vertical rotation mechanism; 142. Vertical motor; 1422. Motor body; 1424. Output shaft; 150. Camera; 160. Support frame; 162. Arc-shaped limiting groove; 164. Cover; 170. Bearing. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] like Figures 1 to 5 As shown, this utility model embodiment provides a camera 100, including: a horizontal rotating base 110 and a pitch ball head 120; the horizontal rotating base 110 includes a base 112 and a main body 114 rotatably connected to the base 112, a horizontal rotation mechanism 130 is provided inside the main body 114, and the horizontal rotation mechanism 130 is connected to the main body 114 and the base 112 respectively, so that the main body 114 rotates horizontally relative to the base 112; the pitch ball head 120 is provided with a vertical rotation mechanism 1... 40 and camera 150; an arc-shaped positioning groove 1141 is formed on the main body 114, and a support frame 160 is also arranged opposite to each other on the main body 114. The two support frames 160 extend from opposite sides of the arc-shaped positioning groove 1141. The pitch ball head 120 is located between the two support frames 160 and is rotatably connected to the support frame 160. The vertical rotation mechanism 140 is connected to the pitch ball head 120 and one of the support frames 160 respectively, so that the pitch ball head 120 rotates relative to the support frame 160 in the vertical direction.

[0020] Specifically, the base 112 and the main body 114 are rotatably connected, and the horizontal rotation mechanism 130 is connected to both the main body 114 and the base 112. When the horizontal rotation mechanism 130 is working, it generates a driving force that causes the main body 114 to rotate horizontally relative to the base 112. The base 112 is the fixed foundation of the entire camera 100. In practical applications, it is usually installed on a fixed carrier such as a wall, bracket, or desktop, and remains stationary. When the main body 114 rotates relative to the base 112, the pitch ball head 120, which is connected to the main body 114 through the support frame 160, rotates synchronously with the main body 114, thereby enabling the pitch ball head 120 to switch the viewing angle in the horizontal direction, so as to adjust the horizontal angle of the camera 150. In addition, the arc-shaped placement groove 1141 on the main body 114 provides a certain amount of accommodation space for the pitch ball head 120, which makes the overall camera 100 more compact. Meanwhile, two support frames 160, positioned opposite each other on the main body 114, extend from both sides of the arc-shaped mounting groove 1141. The pitch ball head 120 is clamped between the two support frames 160 and rotatably connected to them. This arrangement ensures the installation stability of the pitch ball head 120 without restricting its vertical rotational freedom. When the vertical rotation mechanism 140 within the pitch ball head 120 is activated, it can drive the pitch ball head 120 to rotate vertically relative to the support frame 160 via power output, thereby enabling the camera 150 to adjust its pitch angle. By combining the horizontal rotating base 110 and the pitch ball head 120, rotation is possible in both the horizontal and pitch directions, eliminating blind spots and improving usability during use.

[0021] like Figure 1 , Figure 3 and Figure 5 As shown, at least one support frame 160 is provided with an arc-shaped limiting groove 162, and the pitch ball head 120 is provided with a locking protrusion 122 that engages with the arc-shaped limiting groove 162, so that the rotation angle of the pitch ball head 120 relative to the support frame 160 is between 0° and 180°; wherein, when the pitch ball head 120 is at the 0° position, the camera 150 faces into the arc-shaped limiting groove 1141, and when the pitch ball head 120 is at the 180° position, the camera 150 faces the side away from the base 112.

[0022] Specifically, when the pitch ball head 120 is at the 0° position, the camera 150 faces the arc-shaped placement slot 1141, enabling the setting of a privacy mode. This allows the main body 114 to physically block the camera 150, and makes it more intuitive whether the camera 150 is in a blocked state. When the pitch ball head 120 rotates to the 180° position, the camera 150 faces the side away from the base 112. This allows the camera 150 to observe the location of the ceiling. Since the camera 150 itself has a certain wide angle, it can ensure that the camera 150 can observe all angles from the bottom to the top during the pitch movement, thereby improving the breadth of observation.

[0023] like Figure 5 and Figure 6 As shown, the pitch ball head 120 includes a front ball head shell 124 and a rear ball head shell 126 that are interlocked. The camera 150 is fixedly connected to the front ball head shell 124, and the vertical rotation mechanism 140 is fixedly connected to the rear ball head shell 126.

[0024] Specifically, the ball joint front housing 124 provides a stable fixed position for the camera 150, ensuring that the camera 150 will not shake or shift during operation, thereby guaranteeing the stability and clarity of the captured image. The ball joint rear housing 126 is tightly fixedly connected to the vertical rotation mechanism 140, making the vertical rotation mechanism 140 more efficient and stable in driving the pitch ball joint 120 to rotate. The ball joint front housing 124 and ball joint rear housing 126, when fastened together, form a relatively enclosed space, effectively preventing dust, moisture, and other external impurities from entering the pitch ball joint 120, avoiding damage to the camera 150 and the vertical rotation mechanism 140, and extending the service life of the camera 100. At the same time, the ball joint front housing 124 and ball joint rear housing 126 are separate, and are fastened together after the camera 150 and vertical rotation mechanism 140 and other components are assembled, improving the convenience of assembly and reducing the difficulty of operation.

[0025] like Figure 6 As shown, the vertical rotation mechanism 140 includes a vertical motor 142, which includes a motor body 1422 and an output shaft 1424 connected to the motor body 1422. The output shaft 1424 is engaged with one of the support frames 160, and the motor body 1422 is fixedly connected to the ball head rear shell 126.

[0026] Specifically, the output shaft 1424 is engaged with one of the support frames 160, ensuring that there is no relative rotation between the output shaft 1424 and the support frame 160, making the support frame 160 a fixed reference for the vertical motor 142. The motor body 1422 is fixedly connected to the ball joint rear housing 126. When the motor body 1422 operates, the output shaft 1424 rotates relative to the motor body 1422. Since the output shaft 1424 is fixed to the support frame 160, the motor body 1422 drives the ball joint rear housing 126 to rotate relative to the support frame 160, thereby achieving the vertical rotation of the pitch ball joint 120. In this way, the stable power output provided by the vertical motor 142 ensures that the pitch ball joint 120 can rotate flexibly within an angle range of 0° to 180°, thus guaranteeing effective adjustment of the pitch angle of the camera 150.

[0027] like Figure 5 As shown, a cover 164 is provided on the side of the support frame 160 that is opposite to it.

[0028] Specifically, the cover 164 is installed on the side opposite to the support frame 160, i.e., on the outside of the support frame 160. The cover 164 can form a sealed structure with the support frame 160, further improving the dustproof and waterproof rating of the equipment, reducing the corrosion of the camera 100's internal components by the external environment, lowering the failure rate of the camera 100, and extending the service life of the camera 100. In addition, the cover 164 also has a certain aesthetic function, making the appearance of the camera 100 neater and more uniform.

[0029] like Figure 4 and Figure 7 As shown, the horizontal rotation mechanism 130 includes a horizontal motor 132 fixedly connected to the main body 114, and a gear set 134 connected to the horizontal motor 132. The gear set 134 includes a final stage transmission gear 136 fixedly connected to the base 112.

[0030] Specifically, the horizontal motor 132 is fixedly connected to the main body 114, providing power for horizontal rotation. The gear set 134, as a power transmission mechanism, transmits the power generated by the horizontal motor 132 to the base 112, thereby driving the main body 114 to rotate relative to the base 112. The gear set 134 includes a final stage transmission gear 136, which is fixedly connected to the base 112. When the horizontal motor 132 is working, it drives the drive gear in the gear set 134 to rotate. The drive gear drives the transmission gears of each stage to rotate through gear meshing, ultimately driving the final stage transmission gear 136 to rotate. Since the final stage transmission gear 136 is fixed to the base 112, and the base 112 serves as a fixed foundation, the rotation of the gear set 134 will drive the horizontal motor 132 and the main body 114 to rotate together relative to the base 112, realizing the horizontal rotation of the horizontal rotary seat 110. The precision of the gear transmission ensures that the rotation angle of the horizontal rotary seat 110 is controllable, enabling precise angle positioning and contributing to the stability of the transmission.

[0031] like Figure 4 and Figure 7 As shown, the final stage transmission gear 136 includes a gear body 1362 and a connecting part 1364 disposed on one side of the gear body 1362 in the thickness direction. The main body 114 and the base 112 are connected by a bearing 170. The connecting part 1364 passes through the inner ring of the bearing 170 and is fixedly connected to the base 112. The inner ring of the bearing 170 is connected to the base 112, and the outer ring of the bearing 170 is connected to the main body 114. A protruding edge 1366 is also provided on the connecting part 1364. The protruding edge 1366 is located on the side of the bearing 170 away from the base 112, and the protruding edge 1366 abuts against the inner ring of the bearing 170.

[0032] Specifically, the connecting part 1364 is disposed on one side of the gear body 1362 in the thickness direction. The main body 114 and the base 112 are connected by a bearing 170. The inner ring of the bearing 170 is connected to the base 112, and the outer ring is connected to the main body 114. The connecting part 1364 passes through the inner ring of the bearing 170 and is fixedly connected to the base 112, ensuring the connection stability between the final stage transmission gear 136 and the base 112 and avoiding relative displacement during horizontal rotation. At the same time, the bearing 170 converts the sliding friction between the main body 114 and the base 112 into rolling friction, greatly reducing the friction force during rotation and making the horizontal rotation of the main body 114 smoother. In addition, a protruding edge 1366 is disposed on the connecting part 1364, located on the side of the bearing 170 away from the base 112, and abuts against the inner ring of the bearing 170. Axial positioning of the inner ring of bearing 170 is performed to prevent axial movement of the inner ring of bearing 170 during horizontal rotation, ensuring the normal operation of bearing 170 and ensuring the reliability of the axial connection between the main body 114 and the base 112, thereby ensuring that the main body 114 remains stable during horizontal rotation and will not wobble or tilt.

[0033] like Figure 4 As shown, the main body 114 includes a connecting seat 1142 and a frustum-shaped outer shell 1144 connected to the connecting seat 1142. An arc-shaped placement groove 1141 is formed on the frustum-shaped outer shell 1144, and a bearing 170 is connected to the connecting seat 1142.

[0034] Specifically, the sides of the frustum-shaped housing are inclined, which makes the center of gravity of the camera 100 more stable and ensures the stability of the camera 100 during use. The separate connection between the connector 1142 and the frustum-shaped housing 1144 facilitates the installation of various components inside the main body 114, and also facilitates connection with the base 112, reducing production difficulty and manufacturing costs, while also facilitating later maintenance and component replacement.

[0035] like Figure 7 , Figure 8 and Figure 9 As shown, a limiting platform 1368 is provided on the other side of the gear body 1362 in the thickness direction, and a limiting switch 1146 is provided on the connecting seat 1142. When the final stage transmission gear 136 rotates, the limiting platform 1368 can contact the limiting switch 1146, and / or, a first limiting part 1122 is provided on the base 112, and a second limiting part 1142a is provided on the connecting seat 1142. When the main body 114 rotates relative to the base 112, the first limiting part 1122 can abut against the second limiting part 1142a.

[0036] Specifically, a limiting platform 1368 is provided on the other side of the gear body 1362 in the thickness direction, and a limiting switch 1146 is provided on the connecting seat 1142. When the final stage transmission gear 136 rotates, it drives the limiting platform 1368 to rotate together. When the rotation angle reaches the preset maximum value, the limiting platform 1368 contacts the limiting switch 1146, and the limiting switch 1146 triggers an electrical signal to control the horizontal motor 132 to stop working, thereby realizing electrical limiting. The limiting switch 1146 can be a micro switch. When realizing the rotational limiting between the base 112 and the main body 114, a first limiting part 1122 can also be provided on the base 112, and a second limiting part 1142a can be provided on the connecting seat 1142. When the main body 114 rotates relative to the base 112, as the rotation angle increases, the first limiting part 1122 and the second limiting part 1142a gradually approach each other. When the rotation angle reaches the mechanical limit position, the two parts resist each other, preventing the main body 114 from continuing to rotate through mechanical force, thus achieving mechanical limiting. By employing a dual limiting mechanism of electrical and mechanical limiting, excessive rotation of the horizontal rotary table 110 can be effectively prevented, avoiding breakage of internal wiring due to excessive winding, and wear or damage to the gear set 134 due to excessive meshing. This protects the core components of the equipment and extends its service life. Furthermore, even if one limiting method fails, the other can still function normally, reducing the equipment's failure rate and ensuring the continuous and stable operation of the monitoring system. In practical applications, the maximum relative rotation angle between the base 112 and the main body 114 is 346°, which, combined with the wide-angle lens of the camera 150, perfectly achieves 360° horizontal shooting without blind spots. It should also be noted that the cooperation between the limit stage 1368 and the limit switch 1146 can also realize the automatic positioning function of the horizontal rotary table 110. For example, after the patrol monitoring ends, the horizontal rotary table 110 can be controlled to return to the initial position through the limit switch 1146, which improves the intelligence level of the equipment.

[0037] like Figure 4 As shown, the arc-shaped groove 1141 is inclined on the main body 114, and the distance from one side edge of the arc-shaped groove 1141 to the bottom of the main body 114 is less than the distance from the other side edge of the arc-shaped groove 1141 to the bottom of the main body 114.

[0038] Specifically, the distance between the edge of the arc-shaped mounting groove 1141 and the bottom of the main body 114 is smaller on one side and larger on the other, forming an inclined arc-shaped groove. This allows the center of gravity of the pitch ball head 120 to be closer to the central axis of the main body 114, reducing the lateral force on the support frame 160 when the pitch ball head 120 rotates, lowering the load on the support frame 160, and improving the structural stability and service life of the support frame 160. At the same time, the inclined groove has a higher fit with the pitch ball head 120, reducing the empty space inside the device and making the overall structure more compact. It should also be noted that the ball head front shell 124, which houses the camera 150, faces the side of the arc-shaped mounting groove 1141 with a smaller distance from the bottom of the main body 114. This further reduces obstruction of the ball head front shell 124, facilitating the installation of infrared modules and other components at the ball head front shell 124, and avoiding obstruction or interference to the installed components.

[0039] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A camera, characterized in that, include: A horizontal rotating base and a pitch ball joint; the horizontal rotating base includes a base and a main body rotatably connected to the base, the main body is provided with a horizontal rotation mechanism, and the horizontal rotation mechanism is connected to the main body and the base respectively, so that the main body rotates horizontally relative to the base; the pitch ball joint is provided with a vertical rotation mechanism and a camera; An arc-shaped positioning groove is formed on the main body, and support frames are also arranged opposite to each other on the main body. The two support frames extend from opposite sides of the arc-shaped positioning groove. The pitch ball head is located between the two support frames and is rotatably connected to the support frames. The vertical rotation mechanism is connected to the pitch ball head and one of the support frames respectively, so that the pitch ball head rotates relative to the support frame in the vertical direction.

2. The camera according to claim 1, characterized in that, At least one of the support frames is provided with an arc-shaped limiting groove, and the pitch ball head is provided with a locking protrusion that engages with the arc-shaped limiting groove, so that the rotation angle of the pitch ball head relative to the support frame is between 0° and 180°; wherein, when the pitch ball head is at the 0° position, the camera faces into the arc-shaped limiting groove, and when the pitch ball head is at the 180° position, the camera faces the side away from the base.

3. The camera according to claim 2, characterized in that, The pitch ball head includes a front ball head shell and a rear ball head shell that interlock with each other. The camera is fixedly connected to the front ball head shell, and the vertical rotation mechanism is fixedly connected to the rear ball head shell.

4. The camera according to claim 3, characterized in that, The vertical rotation mechanism includes a vertical motor, which includes a motor body and an output shaft connected to the motor body. The output shaft is engaged with one of the support frames, and the motor body is fixedly connected to the ball head rear shell.

5. The camera according to claim 4, characterized in that, A cover is provided on the side of the support frame that is opposite to it.

6. The camera according to any one of claims 1-5, characterized in that, The horizontal rotation mechanism includes a horizontal motor fixedly connected to the main body, and a gear set connected to the horizontal motor, the gear set including a final stage transmission gear fixedly connected to the base.

7. The camera according to claim 6, characterized in that, The final stage transmission gear includes a gear body and a connecting portion disposed on one side of the gear body in the thickness direction. The main body and the base are connected by a bearing. The connecting portion passes through the inner ring of the bearing and is fixedly connected to the base. The inner ring of the bearing is connected to the base, and the outer ring of the bearing is connected to the main body. The connecting portion is also provided with a protruding edge, which is located on the side of the bearing away from the base, and the protruding edge abuts against the inner ring of the bearing.

8. The camera according to claim 7, characterized in that, The main body includes a connecting seat and a frustum-shaped outer shell connected to the connecting seat. The arc-shaped placement groove is formed on the frustum-shaped outer shell, and the bearing is connected to the connecting seat.

9. The camera according to claim 8, characterized in that, A limiting platform is provided on the other side of the gear body in the thickness direction, and a limiting switch is provided on the connecting seat. When the final stage transmission gear rotates, the limiting platform can contact the limiting switch, and / or, a first limiting part is provided on the base, and a second limiting part is provided on the connecting seat. When the main body rotates relative to the base, the first limiting part can abut against the second limiting part.

10. The camera according to any one of claims 2-5, characterized in that, The arc-shaped groove is inclined on the main body, and the distance from one edge of the arc-shaped groove to the bottom of the main body is less than the distance from the other edge of the arc-shaped groove to the bottom of the main body.

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