Camera shell assembly and pan-tilt camera

Abstract

The utility model relates to the technical field of security and protection monitoring, and provides a camera shell assembly and a pan-tilt camera, the camera shell assembly comprises a shell body and a windshield wiper mechanism, the shell body is provided with a guide main body, and the guide main body is provided with a guide chute with an arc-shaped guide track; a driving structure of the windshield wiper mechanism is fixedly arranged on one side of the shell body; the fixing structure is located on the other side of the shell body, penetrates through the shell body and is connected with the driving structure; the windshield wiper structure is in guide fit with the guide sliding groove and the fixing structure. The driving structure is used for driving the fixing structure to rotate, and the windshield wiper structure does telescopic motion in the length direction of the fixing structure under the limitation of the guide sliding groove and the fixing structure. According to the utility model, the effective working area of the windshield wiper mechanism can be increased to cover the whole range of the field angle of the lens, the cleaning effect is improved, the normal shooting and observation functions of the camera are ensured, and the cleaning blind area caused by insufficient length of the windshield wiper in the traditional scheme is eliminated.

Description

Technical Field

[0001] This utility model relates to the field of security monitoring technology, and in particular to a camera housing assembly and a pan-tilt camera. Background Technology

[0002] Pan-tilt cameras, such as PTZ cameras, are a type of panoramic monitoring device. They typically consist of a central main sphere and two symmetrically distributed smaller spheres on either side to achieve multi-angle field of view coverage. In harsh environments such as rainy or humid conditions, raindrops adhering to the lens surface can affect image quality. Therefore, it is often necessary to add a wiper device to the camera to keep the lens surface clean.

[0003] Because the central main sphere has a large space, it can effectively clean using a conventional wiper structure. However, the smaller spheres on both sides are compact and have limited installation space, making it difficult to directly use the same wiper structure as the main sphere. Currently, the wiper structure design for the smaller spheres on both sides aims to shorten the wiper length to avoid movement interference with the main cavity of the large sphere.

[0004] While this design avoids motion interference with the main cavity of the large sphere, the limited wiper length directly results in its working area not being able to cover the entire field of view of the lens, creating a cleaning blind spot. Utility Model Content

[0005] This utility model provides a camera housing assembly and a pan-tilt camera to solve the above-mentioned technical defects in the prior art. It can increase the effective working area of ​​the wiper mechanism to cover the entire range of the lens's field of view, improve the cleaning effect, ensure the normal shooting and observation functions of the camera, and eliminate the cleaning blind spots caused by insufficient wiper length in traditional solutions.

[0006] The first aspect of this utility model provides a camera housing assembly, comprising:

[0007] The housing body has a guide body on it, and the guide body has a guide groove, the guide groove having an arc-shaped guide trajectory;

[0008] Wiper mechanism, including:

[0009] The drive structure is fixedly mounted on one side of the housing body;

[0010] A fixing structure is located on the other side of the housing body. The fixing structure passes through the housing body and is connected to the driving structure.

[0011] The wiper structure is guided and engaged with the guide groove and the fixed structure.

[0012] The driving structure is used to drive the fixed structure to rotate, and the wiper structure, under the constraint of the guide groove and the fixed structure, performs telescopic movement along the length direction of the fixed structure.

[0013] According to the camera housing assembly provided by this utility model, the guide groove includes:

[0014] First section;

[0015] The second slot is connected to the end of the first slot.

[0016] When the wiper structure moves within the first groove section, the wiper structure gradually extends along the length direction of the fixed structure; when the wiper structure moves within the second groove section, the wiper structure gradually retracts along the length direction of the fixed structure.

[0017] According to the camera housing assembly provided by this utility model, the first slot segment includes:

[0018] First sub-slot segment;

[0019] The second sub-slot segment is connected to the end of the first sub-slot segment and to the beginning of the second sub-slot segment.

[0020] The radius of curvature of the first sub-slot segment is greater than that of the second sub-slot segment.

[0021] According to the camera housing assembly provided by this utility model, the guide body is further provided with:

[0022] A connecting hole extends to the housing body and is located between the starting end and the ending end of the guide groove;

[0023] The limiting protrusion is used to limit the swing angle of the wiper structure.

[0024] According to the camera housing assembly provided by this utility model, the fixing structure includes:

[0025] A drive shaft passes through the housing body and the guide body, one end of the drive shaft is connected to the output shaft of the drive structure, and the other end of the drive shaft forms a fixed end;

[0026] A fixed carrier is inserted into the fixed end and fixedly connected to the fixed end;

[0027] The wiper structure is guided and fitted with the fixed carrier.

[0028] According to the camera housing assembly provided by this utility model, the wiper structure includes:

[0029] A wiper arm has a mounting groove that extends along the length of the wiper arm.

[0030] Wiper blades are embedded in the mounting groove;

[0031] The wiper arm is guided and engaged with the fixed carrier; the wiper arm is provided with a guide part on the side away from the fixed carrier, the guide part is inserted into the guide groove and is guided and engaged with the guide groove.

[0032] According to the camera housing assembly provided by this utility model, either the wiper fixing arm or the fixing carrier is provided with a guide groove, and the other of the wiper fixing arm and the fixing carrier is provided with a guide member that cooperates with the guide groove.

[0033] According to the camera housing assembly provided by this utility model, the guide groove is disposed on the fixed carrier and is spaced apart along the length direction of the fixed carrier;

[0034] The wiper arm is detachably connected to a fastener, which passes through the guide groove to form the guide member.

[0035] According to the camera housing assembly provided by this utility model, the fixed carrier has flanges on opposite sides, the flanges extend along the length direction of the fixed carrier, and the wiper fixing arm is embedded in the space limited by the flanges.

[0036] A second aspect of this utility model provides a pan-tilt camera, comprising:

[0037] Main camera;

[0038] A side camera is disposed on at least one side of the main camera, and the size of the side camera is smaller than the size of the main camera;

[0039] And any of the camera housing components described herein, wherein the camera housing component is the front face of the side camera.

[0040] The camera housing assembly provided by this utility model features a guide body on the housing body, with an arc-shaped guide groove on the guide body. This allows the wiper structure to guide and engage with the guide groove, and simultaneously with a fixed structure. When the drive structure rotates the fixed structure, the wiper structure slides within the guide groove, moving along its guide trajectory. Simultaneously, guided by the fixed structure, the wiper structure extends and retracts along the length of the fixed structure. This design constrains the wiper structure's path using the guide groove and, through the linkage between the guide groove and the fixed structure, dynamically adjusts the wiper structure's length during rotation.

[0041] As the wiper structure moves from its initial position (fully retracted) to its extended position, it gradually extends; as it moves from its extended position (fully extended) to its limit position, it gradually retracts, and then fully retracts again at the limit position. During this movement, the wiper structure's trajectory forms a gradually changing arc-shaped coverage area. The amount of extension and retraction of the wiper structure dynamically changes with the rotation angle, reaching its maximum extension length in the center of the lens's field of view (the position with the highest cleaning demand), while automatically retracting near areas with interference risk. This increases the effective working area of ​​the wiper mechanism to cover the entire range of the lens's field of view, improving the cleaning effect, ensuring the camera's normal shooting and observation functions, and eliminating cleaning blind spots caused by insufficient wiper length in traditional solutions.

[0042] Furthermore, the camera housing assembly provided in this embodiment integrates the wiper mechanism into the camera housing assembly using a guide body on the housing body. This results in a compact wiper mechanism structure that does not occupy excessive external space, facilitating miniaturization of the camera and making it suitable for cameras of various sizes and installation environments. Simultaneously, through the coordinated operation of the guide groove and the fixing structure, the wiper structure's extension and retraction process requires no additional power source; adaptive length adjustment is achieved solely through the rotation of a single drive structure. This simplifies the overall structural complexity, reduces manufacturing costs and the risk of failure, and improves the reliability of the wiper mechanism.

[0043] The pan-tilt camera provided by this utility model, because it includes the camera housing assembly described above, has all the advantages of the aforementioned camera housing assembly. The wiper mechanism can cover the entire range of the lens's field of view, improving the cleaning effect, ensuring the normal shooting and observation functions of the camera, and eliminating the cleaning blind spots caused by insufficient wiper length in traditional solutions. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] Figure 1 This is an exploded view of the camera housing assembly provided in this embodiment of the utility model.

[0046] Figure 2 This is a front view of the guide body in the camera housing assembly provided in this embodiment of the utility model.

[0047] Figure 3 This is an exploded view of the wiper mechanism in the camera housing assembly provided in this embodiment of the utility model.

[0048] Figure 4 This is a schematic diagram of the usage state of the wiper mechanism in the camera housing assembly provided in this embodiment of the utility model (the wiper mechanism is in the initial position and the extended position).

[0049] Figure 5 This is a perspective view of the wiper mechanism in the camera housing assembly provided in this embodiment of the utility model.

[0050] Figure 6 This is a schematic diagram of the structure of an embodiment of a PTZ camera provided in this utility model.

[0051] Figure 7 This is a schematic diagram of another embodiment of the pan-tilt camera provided in this utility model.

[0052] Figure label:

[0053] 100. Camera housing assembly; 200. Pan-tilt camera; 210. Main camera; 220. Side camera;

[0054] 10. Housing body; 11. Guide body; 111. Guide groove; 1111. First groove segment; 1111-1. First sub-groove segment; 1111-2. Second sub-groove segment; 1112. Second groove segment; 112. Connecting hole; 113. Limiting protrusion;

[0055] 20. Wiper mechanism; 21. Drive structure; 22. Fixing structure; 221. Drive shaft; 2211. Fixing end; 222. Fixing carrier; 2221. Guide groove; 2222. Flanged edge; 2223. Mounting hole; 2224. Mounting component; 23. Wiper structure; 231. Wiper fixing arm; 2311. Mounting groove; 2312. Guide part; 2313. Fastener; 232. Wiper blade;

[0056] 30. Windows. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0058] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0059] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Existing technical solutions generally sacrifice cleaning coverage to avoid the risk of motion interference between the wiper structure of the two smaller spheres and the main cavity of the larger sphere in PTZ cameras such as three-sphere cameras (or dual-gun surround-view integrated cameras, three-lens eagle-view PTZ cameras). However, this arrangement directly results in the wiper structure's working area not covering the entire field of view of the lens, creating a cleaning blind spot. Therefore, this utility model embodiment provides a camera housing assembly to maximize the wiper's working area within a limited space, thereby eliminating the cleaning blind spot, achieving full coverage cleaning of the field of view of the two smaller sphere lenses, and ensuring reliable all-weather operation of the camera in adverse weather conditions.

[0062] Figure 1 This is an exploded view of the camera housing assembly provided in this embodiment of the utility model.

[0063] See Figure 1This utility model provides a camera housing assembly 100, which includes a housing body 10 and a wiper mechanism 20.

[0064] A guide body 11 is provided on the housing body 10. The guide body 11 is located on the front face of the camera housing assembly and is positioned near the viewing window 30. The guide body 11 can be integrally molded with the housing body 10 by injection molding, or the guide body 11 and the housing body 10 can be installed by separate manufacturing and reassembly. When the guide body 11 and the housing body 10 are separate, the guide body 11 can be installed on the housing body 10 by screws or other fasteners. The housing body 10 and the guide body 11 can be made of high-strength, weather-resistant engineering plastics, such as POM (polyoxymethylene resin) or polytetrafluoroethylene.

[0065] A guide groove 111 is provided on the guide body 11. The guide groove 111 is formed by an inward indentation from the surface of the guide body 11. The guide trajectory of the guide groove 111 is arc-shaped, that is, the guide groove 111 is an arc-shaped groove. This arc shape can be a circular arc, an elliptical arc, or a parabolic arc. The arc design of the guide groove 111 needs to take into account the movement trajectory of the wiper mechanism 20. The radius and center position of the arc are determined according to the extension range and movement angle of the wiper mechanism 20.

[0066] The length of the wiper mechanism 20 needs to be greater than or equal to the length of the viewing window 30 so that the wiper mechanism 20 reaches its maximum extension length in the center area of ​​the lens's field of view (the position with the highest cleaning demand), thereby increasing the effective working area of ​​the wiper mechanism 20. The wiper mechanism 20 includes a drive structure 21, a fixed structure 22, and a wiper structure 23.

[0067] The drive structure 21 is fixed to a mounting base on one side of the housing body 10. The mounting base is connected to the housing body 10 by screws or glue to prevent the drive structure 21 from loosening during operation. The drive structure 21 can be a motor, or a combination of a small motor and a reduction gear set. The motor can be a DC motor, and its power supply can be provided by the camera's internal power module. The motor provides power, and the reduction gear set converts the high-speed rotation of the motor into a rotational speed suitable for the movement of the wiper structure 23.

[0068] The fixing structure 22 is located on the other side of the housing body 10. The fixing structure 22 passes through the housing body 10 and is connected to the drive structure 21. A connecting hole 112 is provided on the guide body 11, extending into the housing body 10. The connecting hole 112 is located between the starting and ending ends of the guide groove 111. The fixing structure 22 passes through the connecting hole 112 and is connected to the drive structure 21.

[0069] The wiper structure 23 is guided and engaged with the guide groove 111 and the fixed structure 22. When the drive structure 21 rotates to drive the fixed structure 22 to rotate synchronously, the wiper structure 23 slides in the guide groove 111 to move along the guide trajectory of the guide groove 111. At the same time, under the guidance of the fixed structure 22, the wiper structure 23 extends and retracts along the length direction of the fixed structure 22, that is, the wiper structure 23 extends and retracts along a straight line.

[0070] It is understood that the camera housing assembly provided by this utility model, by setting a guide body 11 on the housing body 10 and setting a guide groove 111 with an arc-shaped guide trajectory on the guide body 11, allows the wiper structure 23 in the wiper mechanism 20 to guide and cooperate with the guide groove 111, and also allows the wiper structure 23 to guide and cooperate with the fixed structure 22. When the driving structure 21 drives the fixed structure 22 to rotate, the wiper structure 23 slides in the guide groove 111 to move along the guide trajectory of the guide groove 111. At the same time, under the guidance of the fixed structure 22, the wiper structure 23 performs telescopic movement along the length direction of the fixed structure 22. In this way, the guide groove 111 constrains the running path of the wiper structure 23, and the guide groove 111 and the fixed structure 22 link and restrict the wiper structure 23, so that the wiper structure 23 dynamically adjusts its length during rotation.

[0071] As the wiper structure 23 moves from its initial position (fully retracted) to its extended position (fully extended), it gradually extends; as it moves from its extended position (fully extended) to its limit position, it gradually retracts; and at the limit position, it retracts completely again. During this movement, the trajectory of the wiper structure 23 forms a gradually changing arc-shaped coverage area. The extension and retraction of the wiper structure 23 dynamically changes with the rotation angle, reaching its maximum extension length in the center of the lens's field of view (the position with the highest cleaning demand), and automatically retracting near the area of ​​potential interference. This increases the effective working area of ​​the wiper mechanism 20 to cover the entire range of the lens's field of view, improving the cleaning effect, ensuring the camera's normal shooting and observation functions, and eliminating the cleaning blind spots caused by insufficient wiper length in traditional solutions.

[0072] Furthermore, the camera housing assembly provided in this embodiment integrates the wiper mechanism 20 into the camera housing assembly 100 via the guide body 11 on the housing body 10. This results in a compact structure for the entire wiper mechanism 20, minimizing its external space requirements and facilitating miniaturization of the camera. It is suitable for cameras of various sizes and installation environments. Simultaneously, through the coordinated operation of the guide groove 111 and the fixing structure 22, the wiper structure 23 can extend and retract without an additional power source. The length self-adjustment is achieved solely through the rotation of the single drive structure 21, simplifying the overall structural complexity, reducing manufacturing costs and failure risks, and improving the reliability of the wiper mechanism 20.

[0073] Figure 2 This is a front view of the guide body in the camera housing assembly provided in this embodiment of the utility model.

[0074] See Figure 2 In some embodiments of this utility model, the guide groove 111 includes a first groove segment 1111 and a second groove segment 1112, and the second groove segment 1112 is connected to the end of the first groove segment 1111.

[0075] Furthermore, the extension of the line connecting the center of the connecting hole 112 and the end of the first groove segment 1111 coincides with the longest line segment connecting a point on the outline of the window 30 and the center of the connecting hole 112. This ensures that the wiper structure 23 can fully extend to its extended position when it reaches the end of the first groove segment 1111. The first groove segment 1111 is arc-shaped, and its width is greater than the width of the part of the wiper structure 23 that contacts it. This ensures that the wiper structure 23 can slide smoothly within the first groove segment 1111 without excessive wobbling.

[0076] The radius of curvature of the first groove segment 1111 is designed according to the motion trajectory of the wiper structure 23 when it extends. For example, when the wiper structure 23 needs to extend smoothly and quickly, the radius of curvature of the first groove segment 1111 is larger, that is, the arc trajectory is gentler.

[0077] The length of the first groove segment 1111 is determined based on the maximum extension length of the wiper structure 23. That is, the length of the first groove segment 1111 is determined based on the movement stroke of the wiper structure 23 from the initial position (fully retracted) to the extended position (fully extended).

[0078] The second groove segment 1112 is also arc-shaped, and the width of the second groove segment 1112 is consistent with that of the first groove segment 1111, so as to ensure that the wiper structure 23 can smoothly transition from the first groove segment 1111 to the second groove segment 1112.

[0079] The radius of curvature and direction of the second groove segment 1112 are different from those of the first groove segment 1111, allowing it to accommodate the retraction movement of the wiper structure 23. The length of the second groove segment 1112 is determined based on the retraction stroke of the wiper structure 23, that is, based on the stroke of the wiper structure 23 from its extended position (fully extended) to its limit position. This ensures that the wiper structure 23 can fully retract when it reaches the end of the second groove segment 1112.

[0080] When the drive structure 21 starts and drives the fixed structure 22 to rotate, the wiper structure 23 moves synchronously with the fixed structure 22. Since the wiper structure 23 cooperates with the first groove section 1111 of the guide groove 111, as the fixed structure 22 rotates, the wiper structure 23 gradually extends out along the length direction of the fixed structure 22 in the first groove section 1111.

[0081] During the extension process, the wiper structure 23 contacts the arc-shaped wall of the first groove segment 1111, and the arc shape of the first groove segment 1111 guides the wiper structure 23 to extend along a predetermined trajectory.

[0082] When the wiper structure 23 reaches the end of the first groove segment 1111, it needs to smoothly transition to the second groove segment 1112. During the transition, the movement direction of the wiper structure 23 will be adjusted according to the arc shape of the second groove segment 1112. At the same time, the fixing structure 22 continues to provide the necessary support and power transmission for the wiper structure 23, ensuring that the wiper structure 23 does not get stuck or deviate from its trajectory during the transition.

[0083] As the fixed structure 22 continues to rotate, the wiper structure 23 enters the second groove section 1112 and begins to gradually retract along the length of the fixed structure 22. The arc shape of the second groove section 1112 guides the wiper structure 23 toward the connection position of the fixed structure 22, causing the wiper structure 23 to gradually return to its limit position.

[0084] During the retraction process, the wiper structure 23 contacts the wall of the second groove section 1112. The shape and guiding effect of the wall cause the wiper structure 23 to retract along a predetermined trajectory until the wiper structure 23 reaches the end of the second groove section 1112, that is, the limit position, thus completing the entire extension and retraction cycle.

[0085] It is understood that by setting the first groove segment 1111 and the second groove segment 1112, the extension and retraction movement of the wiper structure 23 can be precisely controlled, so that the wiper structure 23 moves according to the shape of the guide groove 111, so as to realize the extension and retraction movement of the wiper structure 23 within a limited space, which can increase the cleaning area while effectively preventing the wiper structure 23 from interfering with other components.

[0086] Compared to the complex telescopic mechanism of existing wiper mechanisms 20, this embodiment utilizes a two-section structure of guide groove 111, allowing for a more compact arrangement on the housing body 10. This facilitates the miniaturization of the camera while not affecting the layout and function of other components. The structural design of guide groove 111 ensures stable movement of the wiper structure 23, enabling the wiper mechanism 20 to operate normally in various working environments. Whether in humid, dusty, or low-temperature environments, the wiper structure 23 can telescopically move along a predetermined trajectory, effectively cleaning the camera lens or viewing window 30 and ensuring the camera's normal shooting function.

[0087] Continue reading Figure 2 In some embodiments of this utility model, the first groove segment 1111 includes a first sub-groove segment 1111-1 and a second sub-groove segment 1111-2. The second sub-groove segment 1111-2 is connected to the terminating end of the first sub-groove segment 1111-1 and to the starting end of the second groove segment 1112. The radius of curvature of the first sub-groove segment 1111-1 is greater than the radius of curvature of the second sub-groove segment 1111-2.

[0088] It is understood that, in this embodiment of the present invention, by setting the radius of curvature of the first sub-groove segment 1111-1 to be greater than the radius of curvature of the second sub-groove segment 1111-2, the wiper structure 23 can achieve a smooth extension movement, avoiding jamming or instability during the movement, thereby improving the stability of the wiper mechanism 20.

[0089] Continue reading Figure 1 and Figure 2 In some embodiments of this utility model, the guide body 11 is also provided with a limiting protrusion 113. The limiting protrusion 113 is located at the position of the hole wall of the connecting hole 112. The limiting protrusion 113 is used to limit the swing angle of the wiper structure 23 (such as 0° to 110°).

[0090] It is understood that the limiting protrusion 113 provided in this embodiment of the present invention can accurately limit the range of motion of the wiper structure 23, ensure that the wiper structure 23 moves within the specified stroke, prevent it from exceeding the designed extension limit, and thus avoid component damage or system failure caused by excessive movement.

[0091] For example, the fixed structure 22 and the wiper structure 23 move within a predetermined angle range (0°-110°) during rotation. When the fixed structure 22 and the wiper structure 23 are at 0°, it can be understood that the fixed structure 22 and the wiper structure 23 are at the initial position. When the fixed structure 22 and the wiper structure 23 are at 110°, it can be understood that the fixed structure 22 and the wiper structure 23 are at the extreme position.

[0092] As the wiper structure 23 rotates with the fixed structure 22 from 0°, it reaches its maximum length when it reaches a diagonal position (approximately 43°) on the window glass. The 43° position can be understood as the extended position. Within the range of 0°-43°, the wiper structure 23 extends gradually. This process can be linear; for example, the wiper structure 23 extends a certain length (e.g., 1 cm) for every certain angle the motor rotates (e.g., every 5° rotation).

[0093] As the wiper structure 23 continues to rotate from 43° to 110°, it gradually retracts. Similarly, it can be done by shortening its length by a certain amount with each rotation until the wiper structure 23 returns to the same length as its initial position when it reaches the 110° position.

[0094] Figure 3 This is an exploded view of the wiper mechanism in the camera housing assembly provided in this embodiment of the utility model.

[0095] Continue reading Figure 1 And see also Figure 3 In some embodiments of this utility model, the fixed structure 22 includes a drive shaft 221 and a fixed carrier 222. The drive shaft 221 passes through the connecting hole 112 (that is, through the housing body 10 and the guide body 11). One end of the drive shaft 221 is typically connected to the output shaft of the drive structure 21 by a key connection, spline connection, or coupling connection to ensure that power can be effectively transmitted from the drive structure 21 to the drive shaft 221. The other end of the drive shaft 221 forms a fixed end 2211, which is provided with a limiting plane and a mounting hole 2223. The fixed carrier is limited by the limiting plane and is fixed to the drive shaft 221 by bolts, pins, or other mounting parts 2224 inserted into the mounting hole 2223 of the fixed end 2211, so that the fixed carrier 222 and the drive shaft 221 are fixed together and can move synchronously with the rotation of the drive shaft 221.

[0096] The fixed carrier 222 and the wiper structure 23 can be connected by sliding or rolling, so that the wiper structure 23 can extend and retract under the restriction of the fixed carrier 222.

[0097] When the drive structure 21 is activated, its output shaft drives the transmission shaft 221 to rotate. The transmission shaft 221 transmits power to the fixed carrier 222, which rotates under the drive of the transmission shaft 221. Because the wiper structure 23 is guided and engaged with the fixed carrier 222, and also guided and engaged with the guide groove 111, the wiper structure 23 extends and retracts along the length of the fixed carrier 222 under the combined constraint of the guide groove 111 and the fixed carrier 222. As the drive structure 21 continues to operate and the transmission shaft 221 rotates continuously, the wiper structure 23 reciprocates within the guide groove 111, thus cleaning the camera lens or viewing window 30.

[0098] With this configuration, the fixed structure 22 has fewer components and a more reliable connection method, enabling it to operate stably in complex working environments. This reduces the probability of failures caused by structural complexity and lowers maintenance costs and difficulty.

[0099] It should be noted that when the output shaft of the drive structure 21 is long enough, the output shaft of the drive structure 21 can be directly fixedly connected to the fixed carrier 222, and the transmission shaft 221 can be omitted to further reduce the number of parts.

[0100] Continue reading Figure 1 and Figure 3 In some embodiments of this utility model, the wiper structure 23 includes a wiper fixing arm 231 and a wiper blade 232. The wiper fixing arm 231 is provided with a mounting groove 2311. The shape and size of the mounting groove 2311 match the wiper blade 232, and the wiper blade 232 is embedded in the mounting groove 2311.

[0101] The mounting groove 2311 can be designed as a T-shaped groove or a dovetail groove. This shape can prevent the wiper blade 232 from coming out of the mounting groove 2311 during use. The mounting groove 2311 extends along the length of the wiper arm 231, and its length is adjusted according to the length of the wiper blade 232.

[0102] The wiper arm 231 is guided and fitted to the mounting carrier 222. A guide portion 2312 is provided on the side of the wiper arm 231 facing away from the mounting carrier 222. The shape and size of the guide portion 2312 match the guide groove 111. The guide portion 2312 can be designed as cylindrical, spherical, or block-shaped, and its diameter or width is slightly smaller than the width of the guide groove 111 to ensure that the guide portion 2312 can slide smoothly within the guide groove 111.

[0103] The guide part 2312 and the wiper fixing arm 231 can be manufactured by integral molding, such as directly molding the guide part 2312 when injection molding the wiper fixing arm 231, which can ensure the connection strength between the guide part 2312 and the wiper fixing arm 231.

[0104] The wiper blade 232 can be made of silicone, or it can be made of cloth, brush, or other flexible materials. The wiper arm 231 can be made of plastic or sheet metal, etc.

[0105] It should be noted that in this embodiment of the present invention, the wiper blade 232 is embedded in the mounting groove 2311 of the wiper fixing arm 231, and is integrated with the wiper fixing arm 231. In actual production, the wiper structure 23 can also be integrally processed by a wrapping vulcanization method, that is, the wiper fixing arm 231 is placed in the vulcanization mold of the wiper blade 232, and after the wiper blade 232 is cured, it will wrap around the wiper fixing arm 231 and be integrally formed with the wiper fixing arm 231.

[0106] Continue reading Figure 1 and Figure 3 In some embodiments of this utility model, either the wiper fixing arm 231 or the fixing carrier 222 is provided with a guide groove 2221, and the other of the wiper fixing arm 231 and the fixing carrier 222 is provided with a guide member that cooperates with the guide groove 2221 for guidance.

[0107] For example, a guide groove 2221 can be provided on the wiper arm 231, and a guide member that cooperates with the guide groove 2221 to guide the wiper can be provided on the fixed carrier 222. Alternatively, a guide member can be provided on the wiper arm 231, and a guide groove 2221 that cooperates with the guide member can be provided on the fixed carrier 222.

[0108] The shape and size of the guide member are matched with the guide groove 2221 to ensure that it can slide accurately in the guide groove 2221 during movement. The guide member can be a block or cylindrical structure.

[0109] Continue reading Figure 1 and Figure 3 In some embodiments of this utility model, the guide groove 2221 is provided on the fixed carrier 222 and is spaced apart along the length direction of the fixed carrier 222. The wiper fixing arm 231 is detachably connected to the fastener 2313, and the fastener 2313 passes through the guide groove 2221 to form a guide.

[0110] In this embodiment of the invention, the guide groove 2221 and the fastener 2313 cooperate to precisely guide the movement direction of the wiper fixing arm 231, so that the wiper blade 232 always maintains a straight line movement during the movement, so that it extends to its maximum length in the area where there will be no interference, thereby increasing the effective cleaning area.

[0111] In addition, the fastener 2313, which passes through the guide groove 2221, not only serves as a guide but also, to a certain extent, fixes the installation position of the wiper arm 231, preventing it from loosening or shifting during operation and ensuring the normal operation of the wiper mechanism 20. During installation, it is only necessary to accurately insert the fastener 2313 into the guide groove 2221; no complex adjustment or calibration process is required, facilitating quick installation and replacement of wiper components.

[0112] Continue reading Figure 1 and Figure 3 In some embodiments of this utility model, the fixed carrier 222 has flanges 2222 on opposite sides, the flanges 2222 extend along the length of the fixed carrier 222, and the wiper fixing arm 231 is embedded in the space restricted by the flanges 2222.

[0113] Essentially, a guide groove is defined between the two opposing flanges 2222, and the wiper fixing arm 231 itself forms a guide component, which is embedded in the guide groove formed by the flanges 2222 and forms a guiding engagement with the fixing carrier 222.

[0114] Continue reading Figure 1 and Figure 3 In some optional embodiments, guide grooves 2221 are provided on the fixed carrier 222 and spaced apart along the length of the fixed carrier 222. Fasteners 2313 are detachably connected to the wiper arm 231, and the fasteners 2313 pass through the guide grooves 2221 to form guide members. At the same time, flanges 2222 are provided on opposite sides of the fixed carrier 222, and the flanges 2222 extend along the length of the fixed carrier 222. The wiper arm 231 is embedded in the space restricted by the flanges 2222.

[0115] Figure 4 This is a schematic diagram of the usage state of the wiper mechanism in the camera housing assembly provided in this embodiment of the utility model (the wiper mechanism is in the initial position and the extended position). Figure 5 This is a perspective view of the wiper mechanism in the camera housing assembly provided in this embodiment of the utility model.

[0116] See Figure 4 and Figure 5 In the camera housing assembly 100 provided in this embodiment of the utility model, when the wiper mechanism 20 is in the initial position W1, the wiper structure 23 is in a fully retracted state, that is, the overlapping area between the wiper structure 23 and the fixed carrier 222 is the largest.

[0117] As the wiper structure 23 moves from the initial position W1 (fully retracted) to the extended position W2, it gradually extends; as the wiper structure 23 moves from the extended position W2 (fully extended) to the extreme position, it gradually retracts, and then fully retracts again at the extreme position.

[0118] In the initial position W1, the guide portion 2312 of the wiper arm 231 is located at the beginning end of the guide groove 111. In the extreme position, the guide portion 2312 of the wiper arm 231 is located at the end end of the guide groove 111.

[0119] Figure 6 This is a schematic diagram of the structure of an embodiment of a PTZ camera provided in this utility model.

[0120] See Figure 6 The PTZ camera provided in this embodiment is suitable for narrow installation spaces. The PTZ camera is equipped with the wiper mechanism 20 provided in the above embodiment. The guide groove 111 is used to constrain the running path of the wiper structure 23, and the guide groove 111 and the fixed structure 22 are used to restrict the wiper structure 23 in a linkage manner, so that the wiper structure 23 can dynamically adjust its length during rotation.

[0121] in, Figure 6 In this embodiment, G1 represents the working area of ​​the wiper mechanism 20 provided by this utility model. Figure 6 In this context, G2 represents the working area of ​​a wiper in the prior art. Therefore, it can be seen that the working area of ​​the wiper mechanism 20 provided in this embodiment is larger than that of a wiper in the prior art. The wiper mechanism 20 provided in this invention can increase the effective working area to cover the entire field of view of the lens, improve the cleaning effect, ensure the normal shooting and observation functions of the camera, and eliminate the cleaning blind spots caused by insufficient wiper length in traditional solutions.

[0122] Figure 7 This is a schematic diagram of another embodiment of the pan-tilt camera provided in this utility model.

[0123] See Figure 7 This utility model embodiment provides a PTZ camera 200, which includes a main camera 210 and a side camera 220. The side camera 220 is located on at least one side of the main camera 210, and the size of the side camera 220 is smaller than the size of the main camera 210.

[0124] The PTZ camera 200 also includes a camera housing assembly 100 as described above, which is the front of the side camera 220.

[0125] Essentially, the PTZ camera 200 provided in this embodiment is a multi-lens PTZ camera, such as a three-sphere camera (or a dual-lens surround-view integrated camera, a three-lens eagle-view sphere camera). A detection element can be set in the PTZ camera 200 (it can be determined by sensors detecting light or image clarity, etc.). When the PTZ camera 200 detects dirt on the lens or viewing window 30 surface that needs cleaning, it activates the drive structure 21 of the wiper mechanism 20. The drive structure 21 begins to rotate, transmitting power to the fixed structure 22. The fixed structure 22 drives the wiper structure 23 in the wiper mechanism 20 to rotate while simultaneously performing a linear extension and retraction movement. During this extension and retraction movement, the wiper blades 232 contact the lens or viewing window 30 surface and perform a cleaning action.

[0126] It is understood that the PTZ camera 200 provided by this utility model, because it includes the camera housing assembly 100 mentioned above, has all the advantages of the camera housing assembly 100 mentioned above. It can increase the effective working area of ​​the wiper mechanism 20 to cover the entire range of the lens field of view, improve the cleaning effect, ensure the normal shooting and observation functions of the camera, and eliminate the cleaning blind spots caused by insufficient wiper length in traditional solutions.

[0127] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A camera housing assembly, characterized in that, include: The housing body has a guide body on it, and the guide body has a guide groove, the guide groove having an arc-shaped guide trajectory; Wiper mechanism, including: The drive structure is fixedly mounted on one side of the housing body; A fixing structure is located on the other side of the housing body. The fixing structure passes through the housing body and is connected to the driving structure. The wiper structure is guided and engaged with the guide groove and the fixed structure. The driving structure is used to drive the fixed structure to rotate, and the wiper structure, under the constraint of the guide groove and the fixed structure, performs telescopic movement along the length direction of the fixed structure.

2. The camera housing assembly according to claim 1, characterized in that, The guide groove includes: First section; The second slot is connected to the end of the first slot. When the wiper structure moves within the first groove section, the wiper structure gradually extends along the length direction of the fixed structure; when the wiper structure moves within the second groove section, the wiper structure gradually retracts along the length direction of the fixed structure.

3. The camera housing assembly according to claim 2, characterized in that, The first slot segment includes: First sub-slot segment; The second sub-slot segment is connected to the end of the first sub-slot segment and to the beginning of the second sub-slot segment. The radius of curvature of the first sub-slot segment is greater than that of the second sub-slot segment.

4. The camera housing assembly according to claim 1, characterized in that, The guide body is also equipped with: A connecting hole extends to the housing body and is located between the starting end and the ending end of the guide groove; The limiting protrusion is used to limit the swing angle of the wiper structure.

5. The camera housing assembly according to any one of claims 1 to 4, characterized in that, The fixing structure includes: A drive shaft passes through the housing body and the guide body, one end of the drive shaft is connected to the output shaft of the drive structure, and the other end of the drive shaft forms a fixed end; A fixed carrier is inserted into the fixed end and fixedly connected to the fixed end; The wiper structure is guided and fitted with the fixed carrier.

6. The camera housing assembly according to claim 5, characterized in that, The wiper structure includes: A wiper arm has a mounting groove that extends along the length of the wiper arm. Wiper blades are embedded in the mounting groove; The wiper arm is guided and engaged with the fixed carrier; the wiper arm is provided with a guide part on the side away from the fixed carrier, the guide part is inserted into the guide groove and is guided and engaged with the guide groove.

7. The camera housing assembly according to claim 6, characterized in that, Either the wiper arm or the mounting carrier is provided with a guide groove, and the other of the wiper arm and the mounting carrier is provided with a guide member that cooperates with the guide groove.

8. The camera housing assembly according to claim 7, characterized in that, The guide grooves are provided on the fixed carrier and are spaced apart along the length of the fixed carrier; The wiper arm is detachably connected to a fastener, which passes through the guide groove to form the guide member.

9. The camera housing assembly according to claim 7, characterized in that, The fixed carrier has flanges on both sides opposite to each other. The flanges extend along the length of the fixed carrier, and the wiper arm is embedded in the space restricted by the flanges.

10. A pan-tilt camera, characterized in that, include: Main camera; A side camera is disposed on at least one side of the main camera, and the size of the side camera is smaller than the size of the main camera; And the camera housing assembly according to any one of claims 1 to 9, wherein the camera housing assembly is the front face of the side camera.

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