High-definition monitoring camera

Abstract

The invention relates to the technical field of monitoring cameras, in particular to a high-definition monitoring camera which solves the problem that a shooting view field is blocked due to reciprocating swing of a windscreen wiper in an existing monitoring camera with the windscreen wiper, guarantees the image quality definition of the monitoring camera and comprises a camera body, and the camera body comprises a camera body and a lens. A protective cover for protecting the opening is rotationally mounted on the shell, the protective cover is made of a transparent material, a driving motor is in transmission connection with the protective cover and drives the protective cover to rotate around the rotating circle center of the protective cover, the area of the protective cover is larger than that of the lens, and the mounting position of the lens deviates from the rotating circle center of the protective cover; the shell is provided with a windscreen wiper used for wiping the surface of the protective cover, the windscreen wiper is installed outside the shooting view field range of the lens, when the driving motor drives the protective cover to rotate, the area, corresponding to shooting of the lens, on the protective cover can rotate to the windscreen wiper, and then the position, wiping the protective cover, of the windscreen wiper rotates to the corresponding shooting area of the lens.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of monitoring cameras, in particular to a high-definition monitoring camera. BACKGROUND

[0002] In places where security monitoring is needed, monitoring cameras, as key equipment, need to maintain stable high-definition shooting capabilities in all-weather, complex environments to ensure the effectiveness and accuracy of the monitoring picture. Especially in bad weather such as rain, snow, and heavy fog, the surface of the transparent protective cover outside the camera is easy to attach rainwater, snow, or fog, causing light refraction and scattering, seriously blocking the lens field of view, resulting in blurred shooting picture and loss of details, which cannot meet the core needs of security monitoring for picture clarity.

[0003] To solve this problem, monitoring cameras equipped with wipers have appeared in the prior art, which design idea is borrowed from the working principle of vehicle wipers, by setting a reciprocating wiper structure outside the transparent protective cover, such as a self-cleaning monitoring device with publication number CN222484799U, which discloses using the contact between the wiper blade and the surface of the protective cover to remove the attached rain, snow, and fog, thereby restoring the light transmittance of the protective cover and protecting the shooting quality of the camera.

[0004] However, this obstacle removal method relying on the reciprocating movement of the wiper has obvious defects: the wiper blade and connecting structure will periodically enter the shooting field of view of the camera during the reciprocating movement, forming a dynamic obstruction. This obstruction not only may cause the monitoring picture to be blurred, but also may block the core area in the picture during critical monitoring moments (such as when people are active or abnormal events occur), causing the loss of critical information. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a high-definition monitoring camera to solve the problems of existing monitoring cameras with wipers, such as the obstruction of the shooting field of view due to the reciprocating movement of the wiper, and to ensure the clarity of the monitoring camera picture.

[0006] To achieve the above purpose, the present application provides the following technical solution: a high-definition monitoring camera, comprising a camera body, the camera body comprising a body and a lens, a shell being installed outside the camera body, an opening being provided on the shell corresponding to the position of the lens, a protective cover being rotatably installed on the shell for protecting the opening, the protective cover being made of transparent material, a driving motor being in transmission connection with the protective cover, the driving motor driving the protective cover to rotate around its rotation center, the area of the protective cover being larger than the area of the lens, the installation position of the lens being offset from the rotation center of the protective cover.

[0007] The rain wiper is installed on the shell and is located outside the shooting field of view of the lens, when the driving motor drives the protective cover to rotate, the area of the protective cover corresponding to the lens rotates to the rain wiper, and the rain wiper wipes the area of the protective cover and then rotates to the shooting area corresponding to the lens.

[0008] Further, the radius of the protective cover is greater than the diameter of the lens, the edge of the lens is away from the rotation center of the protective cover, and does not exceed the edge of the protective cover.

[0009] Further, the protective cover is installed on the sleeve fixedly connected with the protective cover; the outer wall of the sleeve is provided with a bearing, the inner ring of the bearing is connected with the outer wall of the sleeve, and the outer ring of the bearing is connected with the shell; and the driving motor is fixedly installed on the shell.

[0010] Further, the rotation shaft of the driving motor is coaxially connected with a gear, and the outer wall of the sleeve is provided with external teeth engaged with the gear.

[0011] Further, the rotation shaft of the driving motor is connected with the rotation center of the protective cover.

[0012] Further, the rain wiper comprises a mounting handle and a wiper strip mounted on the side of the mounting handle facing the protective cover.

[0013] Further, the outer wall of the mounting handle is provided with a water groove, the side of the mounting handle facing the protective cover is provided with a wiper plate, and the mounting handle is provided with a through hole in communication with the water groove, the through hole is located at the side of the wiper plate, water on the protective cover flows along the wiper plate and flows into the water groove through the through hole in the wiper plate, and the end of the water groove is provided with a drain hole; the wiper plate is provided with a protective strip in contact with the protective cover; and the inside of the water groove is provided with a flow guide groove.

[0014] Further, the rain wiper is adjusted in angle by a swing motor, the swing motor is fixedly installed on the shell, and the mounting handle is connected with the rotating end of the swing motor.

[0015] Further, the outer side of the mounting handle is rotatably provided with a roller, the roller has a hollow inner cavity, and the inner cavity is provided with free-rolling balls; the outer wall of the roller is in contact with the protective cover, when the protective cover rotates, the roller in contact with the protective cover rotates synchronously, and when the roller rotates, the balls in the inner cavity roll and hit the inner wall of the roller, thereby generating vibration and transmitting the vibration to the mounting handle.

[0016] Further, the inner cavity of the roller is provided with a plurality of baffles, the plurality of baffles are arranged in the length direction of the inner cavity to divide the inner cavity into a plurality of accommodation cavities which are not communicated with each other, and a plurality of free-rolling balls are arranged in each of the accommodation cavities; and the outer part of the roller is provided with a protective sleeve which covers the outer circumferential surface of the roller.

[0017] Compared with the prior art, the application provides a high-definition monitoring camera, which has the following beneficial effects:

[0018] The high-definition monitoring camera is provided with a driving motor, a protective cover and a wiper. The driving motor drives the transparent protective cover to rotate around the rotation center. The lens mounting position is offset from the rotation center of the protective cover, and the area of the protective cover is larger than that of the lens. The wiper is fixedly installed at a position that cannot be shot by the lens. When the protective cover rotates, the area corresponding to the lens shooting is rotated to the wiper to complete the wiping. The cleaned area is rotated to the position corresponding to the lens. The wiper does not reciprocate in front of the lens throughout the process. The problem of dynamic shielding of the lens field of view by the traditional wiper is completely avoided. The situation of instantaneous frame loss and core area shielding in the monitoring picture is eliminated. The key monitoring information is not lost, and the continuous and clear shooting picture is realized.

[0019] The rain and snow attached to the surface of the protective cover are quickly thrown off under the action of centrifugal force generated by the rotation of the protective cover. Even without starting the wiper, the rotation of the protective cover can complete the basic cleaning of the surface. The accumulation amount and speed of rain and snow on the surface of the protective cover are effectively reduced. The accumulated rain and snow is prevented from shielding the protective cover and causing light refraction and scattering, thereby continuously ensuring the good light transmission of the protective cover and providing a basic condition for the lens to stably shoot high-definition pictures. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the three-dimensional structure of the application;

[0021] Figure 2 It is a schematic structural diagram of the three-dimensional structure of the application; Figure 1

[0022] Figure 3 It is a schematic structural diagram of the three-dimensional structure of the application;

[0023] Figure 4 It is a schematic structural diagram of the three-dimensional structure of the application;

[0024] Figure 5 It is a schematic structural diagram of the three-dimensional structure of the application;

[0025] Figure 6 It is a schematic structural diagram of the three-dimensional structure of the application;​

[0026] Figure 7 Front view of the lens and the protective cover of the present application;

[0027] Figure 8 Side view of the lens and the protective cover of the present application;

[0028] Figure 9 Three-dimensional view of the protective cover and the shell of the present application, in which the driving motor and the sleeve are connected through a gear transmission;

[0029] Figure 10 Three-dimensional view of the protective cover and the shell of the present application, in which the driving motor and the rotation center of the protective cover are directly connected;

[0030] Figure 11 First three-dimensional view of the wiper of the present application;

[0031] Figure 12 Second three-dimensional view of the wiper of the present application;

[0032] Figure 13 Structure of the wiper of the present application; Figure 12 Structure of the wiper of the present application;

[0033] Figure 14 Structure of the wiper of the present application; Figure 12 Structure of the wiper of the present application;

[0034] Figure 15 Top view of the wiper of the present application;

[0035] Figure 16 Sectional view of the roller of the present application;

[0036] Figure 17 Sectional view of the roller of the present application, in which the roller is provided with a baffle inside;

[0037] Figure 18 Front view of the wiper of the present application;

[0038] Figure 19 Structure of the wiper of the present application; Figure 18 Sectional view of the wiper of the present application;

[0039] As shown in FIG. 1, the camera comprises a camera body 1, a lens 2, a shell 3, an opening 4, a protective cover 5, a driving motor 6, a windshield wiper 7, a sleeve 8, a bearing 9, a rotating shaft 10, a gear 11, an external gear 12, a mounting handle 13, a wiper strip 14, a water channel 15, a wiper plate 16, a protective strip 17, a through hole 18, a guide groove 19, a drainage hole 20, a limiting strip 21, a mounting groove 22, a swing motor 23, a roller 24, an inner cavity 25, a ball 26, a baffle 27, a containing cavity 28, a protective sleeve 29, a clamping block 30, a connecting block 32, and a connecting shaft 31. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0041] Please refer to Figure 1 and 3 As shown in FIG. 5, the high-definition monitoring camera provided by the present application comprises a camera body, which comprises two components of a camera body 1 and a lens 2. The camera body 1 is internally integrated with core electronic elements satisfying device operation and function implementation, specifically including a power supply module providing stable power input, a storage module (such as a hard disk or a memory card interface module) storing monitoring video data, a main control chip processing image signals, a communication module (such as a network module or a wireless transmission module) realizing data transmission, and a control module regulating and controlling shooting parameters of the lens 2, etc. Each module is connected by a circuit to form a complete working system, guaranteeing the basic functions of the camera such as shooting, storage, and transmission. The lens 2 is fixedly connected to the front end of the camera body 1 as an image acquisition component. The lens 2 group adopts a high-definition optical lens, can accurately capture external environment images, and convert optical signals into electrical signals transmitted to the main control chip inside the camera body 1 for processing, realizing high-definition monitoring shooting.

[0042] In order to protect the camera body from damage by external dust, rain, collision and other factors, a shell 3 is sleeved on the outside of the camera body: the shell 3 is made of hard material with strong weather resistance (such as engineering plastic, metal alloy), and has a closed cavity structure, and only an opening 4 is formed on the wall surface of the shell 3 corresponding to the shooting direction of the lens 2; the shape and size of the opening 4 are adapted to the shooting field range a (also known as the field of view angle, which refers to the space range that the camera lens 2 can capture, that is, the area that the lens 2 can receive light and form an image through the optical system, which directly determines the breadth of the picture that the camera can cover in a single shooting) of the lens 2, which not only ensures that external light can smoothly pass through the opening 4 into the lens 2 without blocking the shooting field of view of the lens 2, but also guarantees the integrity of image acquisition.

[0043] A protective cover 5 is rotatably installed on the shell 3. The protective cover 5 is made of high-definition transparent material, preferably optical glass, high-transmittance acrylic and other materials with light transmission, which has high light transmittance and stable optical refractive index. The lens 2 can completely pass through the protective cover 5 to capture external images, without causing picture blur, distortion or color deviation due to the material itself, and can fully guarantee the high-definition of the shooting effect. At the same time, the protective cover 5 can effectively block the opening 4 of the shell 3 and block foreign matter from entering the inside of the shell 3.

[0044] The installation position of the protective cover 5 can be flexibly set according to actual protection needs, as long as the opening 4 can be blocked. One is to directly install the protective cover 5 inside the opening 4, so that the edge of the protective cover 5 tightly fits the inner wall of the opening 4, forming an built-in blocking structure, reducing the risk of external force collision caused by the outward protrusion of the protective cover 5; the other is to select a protective cover 5 with a size larger than that of the opening 4, and install it on the outside or inside of the shell 3 (ensure that it does not block the field of view of the lens 2), and realize the overall coverage and blocking of the opening 4 by the protective cover 5, thereby improving the sealing and protection effect.

[0045] The protective cover 5 is in transmission connection with the driving motor 6, and is driven by the driving motor 6 to rotate around the rotation center 0 of the protective cover 5. The specific connection structure and transmission mode of the driving motor 6 and the protective cover 5 will be described in detail below.

[0046] When the driving motor 6 drives the protective cover 5 to rotate at high speed, the shooting frame rate of the camera body needs to be set to be lower than the rotation frequency of the protective cover 5. This design not only avoids the problems of picture flicker and ghosting, but more importantly, since the shooting frame rate is lower than the rotation frequency of the protective cover 5, the human eye cannot perceive the rotation of the protective cover 5 through the camera picture, and the final picture will remain stable, completely without the rotation of the protective cover 5, ensuring the visual coherence and effectiveness of the monitoring or shooting picture.

[0047] The area of the protective cover 5 and the installation position of the lens 2 are described in further detail as follows. First, as shown in Figures 6-8 the overall area of the protective cover 5 must be greater than the area of the lens 2, and the radius r of the protective cover 5 must be greater than the diameter d of the lens 2, so that the lens 2 is completely within the protective range of the protective cover 5. At the same time, the installation position of the lens 2 must be offset from the rotation center of the protective cover 5, and must ensure that the lens 2 neither coincides with the rotation center 0 nor exceeds the edge of the protective cover 5. That is, when the lens 2 coincides with the protective cover 5, both ends of the lens 2 are located between the edge of the protective cover 5 and the rotation center 0.

[0048] A wiper 7 for cleaning the surface of the protective cover 5 is installed on the housing 3. The wiper 7 must be fixed at a position that cannot be captured by the lens 2, as shown in Figures 7-8 the wiper 7 cannot enter the area of the lens 2 field of view a, so as to avoid affecting the integrity of the captured image and ensuring the clarity of the image when the wiper 7 is in a static or working state. When the wiper 7 coincides with the lens 2, the lens 2 captures the image of the wiper 7. When the surface of the protective cover 5 needs to be cleaned, the driving motor 6 drives the protective cover 5 to rotate around its rotation center. During the rotation, the surface position of the protective cover 5 corresponding to the lens 2 capturing area is gradually rotated to the position of the wiper 7, and at this time the wiper 7 performs wiping and cleaning on the area. After cleaning is completed, the protective cover 5 continues to rotate to reposition the cleaned area to the position corresponding to the lens 2 capturing area. The entire cleaning process is achieved by rotating the protective cover 5, and the wiper 7 does not need to move to the front of the lens 2, thereby fundamentally avoiding interference with normal shooting.

[0049] When the driving motor 6 drives the protective cover 5 to rotate, the dirt on the surface of the protective cover 5 is thrown off by the centrifugal force generated by the rotation. In the case of less dirt, even without the wiper 7, the rotation of the protective cover 5 itself can achieve the cleaning of its surface, thereby ensuring the clarity of the lens 2 field of view.

[0050] It is particularly necessary to explain the reason for the offset design of the lens 2 and the rotation center 0 of the protective cover 5. If the lens 2 coincides with the rotation center 0, in order to clean the central area of the protective cover 5 corresponding to the lens 2, the wiper 7 must cover the center position, and this position is exactly within the lens 2 capturing range, which will cause the lens 2 to capture the wiper 7 and affect the image quality. After the offset, the wiper 7 only needs to work in the area outside the lens 2 field of view, and the cleaned area can be sent to the front of the lens 2 by rotating the protective cover 5, thereby ensuring the cleaning effect and avoiding the interference of the wiper 7 with the shooting. The length of the wiper can be extended to the rotation center 0 of the protective cover 5, so that the wiper 7 can wipe and clean the entire protective cover 5 when the protective cover 5 rotates.

[0051] The protective cover 5 is usually made of transparent and high-precision material. In order to facilitate the installation and driving operation of the protective cover 5, the protective cover 5 is usually fixedly installed on the sleeve 8, and the protective cover 5 can be fixedly installed inside the sleeve 8 or at the end of the sleeve 8. When the sleeve 8 is installed, the installation of the protective cover 5 can be completed synchronously; when the sleeve 8 is driven to operate subsequently, the protective cover 5 can also be directly driven to move synchronously.

[0052] The sleeve 8 is rotationally connected with the shell 3, so that the protective cover 5 is rotationally connected with the shell 3, and the protective cover 5 can rotate around the rotation center 0. The core function of the protective cover 5 is to protect the opening 4 on the shell 3 and prevent dust, rain and other pollutants from entering the shell 3. As described above, the protective cover 5 can be directly installed inside the opening 4, or the protective cover 5 with a size larger than the opening 4 can be installed on the front or rear side of the opening 4.

[0053] As shown in Figure 9 To make the rotation of the protective cover 5 more smooth, a bearing 9 is installed on the outer wall of the sleeve 8. The inner ring of the bearing 9 is connected with the outer wall of the sleeve 8 in an interference fit, so that the two are firmly assembled and synchronously rotate; the outer ring of the bearing 9 is connected with the shell 3, which can also be connected in an interference fit, or can be positioned and fixed by a clamping block 30 or the like in a fixed connection manner, so as to ensure that the bearing 9 is stably installed. To ensure that the protective cover 5 can stably rotate, in addition to the above-mentioned connection mode of the bearing 9, the sleeve 8 can also be assembled with the shell 3 in other suitable rotation connection modes, so as to flexibly meet the requirements of different equipment structures and use scenarios for rotation performance.

[0054] The driving motor 6 is fixedly installed on the shell 3, so as to provide a stable power source for driving the sleeve 8 and the protective cover 5 to rotate, and further improve the reliability of the overall rotation structure.

[0055] The driving motor 6 and the protective cover 5 can be connected through various transmission modes, and the specific transmission scheme is as follows:

[0056] 1. As shown in Figure 9 , a gear 11 is coaxially installed on the rotating shaft 10 of the driving motor 6, and an external tooth 12 meshing with the gear 11 is machined or installed on the outer wall of the sleeve 8. When the driving motor 6 is started, the rotating shaft 10 drives the gear 11 to rotate, and the gear 11 transmits power to the sleeve 8 through the meshing of the external tooth 12 on the outer wall of the sleeve 8, so as to drive the protective cover 5 fixedly connected with the sleeve 8 to rotate synchronously;

[0057] Alternatively, a pulley can be installed on the rotating shaft 10 of the drive motor 6, and a belt groove can be opened on the outer wall of the sleeve 8. Through belt transmission, when the drive motor 6 is working, the rotating shaft 10 drives the pulley to rotate, and the belt drives the sleeve 8 to rotate under the action of friction, thus realizing the rotation of the sleeve 8 and the protective cover 5.

[0058] 2. For example Figure 10 As shown, the rotating shaft 10 of the drive motor 6 can be directly connected to the rotation center 0 of the protective cover 5. Since the lens 2 is installed off-center from the rotation center of the protective cover 5, the motor rotating shaft 10 is installed on the rotation center of the protective cover 5. After the drive motor 6 is started, it can directly drive the protective cover 5 to rotate around the rotation center 0. Alternatively, the rotational force of the drive motor 6 can be transmitted to the rotation center 0 of the protective cover 5 and connected thereto through gears, reducers, or other components, which can also achieve the rotation of the protective cover 5.

[0059] like Figures 11-12 As shown, the windshield wiper 7 mainly consists of two parts: a mounting handle 13 and wiper blades 14. The mounting handle 13 is used to mount the wiper 7 onto the housing 3. The wiper blades 14 are mounted on the side of the mounting handle 13 facing the protective cover 5, directly contacting the surface of the protective cover 5 to achieve a cleaning effect. To improve cleaning efficiency, several wiper blades 14 can be provided according to actual needs. Typically, there are 1 to 6 wiper blades 14, which can be evenly distributed on the mounting handle 13 to ensure efficient wiping of dirt from the surface of the protective cover 5, thus cleaning the surface of the protective cover 5.

[0060] like Figures 12-14 As shown in Figures 18-19, a water channel 15 is provided on the outer wall of the mounting handle 13, and a scraper 16 is mounted on the side of the mounting handle 13 facing the protective cover 5. The scraper 16 contacts the surface of the protective cover 5 and is set in an inclined state. At the same time, a through hole 18 connected to the water channel 15 is provided on the mounting handle 13, and the through hole 18 is located on the side of the scraper 16. During the scraping process of the scraper 16, the protective cover 5 will continuously rotate around its own rotation center O, and the rainwater attached to its surface will move synchronously with the rotation of the protective cover 5. When the rotating surface of the protective cover 5 contacts the scraper 16, the scraper 16 will wipe the rainwater, and the scraped rainwater will continue to flow along the inclined direction of the scraper 16 due to inertia until it reaches the through hole 18 on the mounting handle 13. The rainwater that reaches the through hole 18 will flow further into the water channel 15 through the through hole 18. With the help of the inclined angle design of the scraper 16 and the precise flow guidance of the through hole 18, rainwater on the surface of the protective cover 5 can be efficiently collected into the water channel 15. The end of the water channel 15 is provided with a special drain hole 20. The sewage flowing into the water channel 15 will flow continuously along the channel path of the water channel 15 and finally be discharged through the drain hole 20.

[0061] like Figures 12-15As shown, a protective strip 17 is installed on the side of the squeegee 16 that is in contact with the surface of the protective cover 5. The protective strip 17 is usually made of rubber. On the one hand, the soft rubber material can effectively prevent the squeegee 16 from directly contacting the surface of the protective cover 5, thereby preventing the surface of the protective cover 5 from being scratched and protecting the transparent material of the protective cover 5 from being damaged. On the other hand, the rubber material has good elasticity and adhesion, which can improve the contact between the squeegee 16 and the surface of the protective cover 5, reduce the cleaning gap, and thus improve the wiping effect of rainwater and dirt, ensuring that the surface of the protective cover 5 is cleaned more thoroughly.

[0062] Inside the water channel 15, a guide groove 19 is arranged along the length direction of the water channel 15. The guide groove 19 can guide the sewage flowing into the water channel 15 in a certain direction, avoid the sewage from spreading or staying in the groove randomly, further accelerate the outflow speed of the sewage to the drain hole 20, and ensure the drainage efficiency of the water channel 15.

[0063] To achieve rapid drainage of the water channel 15, the structure can be optimized in two ways. One is to make the entire wiper 7 in an inclined state, and use the inclination angle to guide the sewage in the water channel 15 to flow quickly to the lower part. The other is to keep the groove body of the water channel 15 in a vertical or slightly inclined state, and use the gravity to accelerate the flow of the sewage, avoid the sewage from staying in the groove, and ensure that the rainwater can be quickly drained through the drain hole 20.

[0064] The wiper 7 can be fixedly connected to the shell 3, and its position remains unchanged. When the protective cover 5 rotates, the surface of the protective cover 5 will move relative to the fixed wiper 7. Through this relative movement, the wiper 7 can continuously wipe and clean the surface of the rotating protective cover 5. When the protective cover 5 stops rotating, there is no relative movement between the protective cover 5 and the wiper 7, and the wiper 7 stops cleaning the protective cover 5.

[0065] The wiper 7 can also be angle-adjusted by a swing motor 23. The swing motor 23 can drive the wiper 7 to move to a certain angle and keep it at that angle. The specific structure and working mode are as follows: the swing motor 23 is fixedly installed on the shell 3, and the mounting handle 13 of the wiper 7 is connected to the rotating end of the swing motor 23. Through the rotation of the swing motor 23, the wiper 7 can be adjusted in inclination angle, thereby switching the state of whether the wiper 7 is in contact with the surface of the protective cover 5.

[0066] The angle adjustment of the wiper 7 is realized by the swing motor 23. The motor can drive the wiper 7 to move to a preset angle and keep the wiper 7 stable at the specified angle, ensuring that the position of the wiper 7 does not deviate in the working or parking state.

[0067] The oscillating motor 23 is preferably a servo motor, which has precise position control capabilities and can meet the multi-angle positioning requirements of the wiper 7. In the power transmission link, the oscillating motor 23 and the wiper 7 can be connected through transmission components such as reducers and gears. The transmission structure smoothly transmits the power of the oscillating motor 23 to the wiper 7, while optimizing torque and speed to achieve small-amplitude precise angle adjustment of the wiper 7. After the oscillating motor 23 drives the wiper 7 to complete the angle change, the positioning performance of the servo motor and the stability of the transmission structure can keep the wiper 7 firmly maintained at the adjusted specified angle, preventing the angle from shifting due to the rotation of the protective cover 5, and ensuring the positional accuracy of the wiper 7 under different working conditions.

[0068] The working mode of the wiper 7 can be flexibly switched under different usage scenarios: when it is only necessary to clean the surface rainwater by rotating the protective cover 5 itself (using centrifugal force), the swing motor 23 does not work, and the wiper 7 is kept at an angle that does not contact the protective cover 5, so as not to interfere with the autonomous rotation and cleaning of the protective cover 5; when the wiper 7 is needed to assist in improving the cleaning effect, the swing motor 23 drives the wiper 7 to rotate to a position that is in contact with the surface of the protective cover 5. At this time, the protective cover 5 rotates normally under the drive motor 6. Through the relative movement between the protective cover 5 and the wiper 7, the wiper 7 can wipe and clean the surface of the protective cover 5; when the wiper 7 is not needed, the swing motor 23 is restarted, and the wiper 7 is adjusted to a position that is detached from the surface of the protective cover 5.

[0069] Compared to traditional windshield wipers 7, which require back-and-forth oscillation, in this patent application, the protective cover 5 can rotate on its own, so the oscillating motor 23 does not need to drive the windshield wiper 7 to reciprocate. The windshield wiper 7 only needs to be adjusted to a fixed angle to "contact" or "disconnect" from the protective cover 5 as needed to achieve cleaning in conjunction with the rotation of the protective cover 5. This simplifies the drive logic and the coordination of the complex transmission structure, and improves the flexibility of using the windshield wiper 7.

[0070] like Figures 1-3 As shown, in order to accurately control the angle of the wiper 7 under different working conditions and ensure its stable position, two limiting strips 21 are fixedly installed on the housing 3. Each limiting strip 21 has a mounting groove 22 that is adapted to the wiper 7 (including the mounting handle 13 and the wiper blade 14).

[0071] When the swing motor 23 drives the wiper 7 to adjust its angle to clean the surface of the protective cover 5, one of the limiting strips 21 will contact the mounting handle 13 of the wiper 7 and form a block. At the same time, the mounting handle 13 and the wiper blade 14 of the wiper 7 will be embedded in the mounting groove 22 of the limiting strip 21. The mounting groove 22 achieves positioning by fitting the inner wall, fixing the wiper 7 at the preset working angle, avoiding angle deviation caused by vibration or external force during the cleaning process, and ensuring wiping stability.

[0072] When the wiper 7 is driven by the swing motor 23 to adjust the angle and separate from the surface of the protective cover 5, the other limiting strip 21 will contact and block the mounting handle 13 of the wiper 7, and the mounting handle 13 of the wiper 7 is embedded in the mounting groove 22 of the limiting strip 21 synchronously with the wiper blade 14; through the positioning effect of the mounting groove 22, the wiper 7 is fixed at a preset angle away from the protective cover 5, preventing the wiper 7 from shaking randomly in the non-working state, and providing a precise reference for subsequent angle adjustment.

[0073] As shown in Figures 11-19 , the roller 24 is rotatably installed on the outside of the mounting handle 13, and the connection between the roller 24 and the mounting handle 13 can be achieved in various ways, one of which is the structure of the connecting block 31 cooperating with the connecting shaft 32. The specific assembly method is as follows: connecting shafts 32 are arranged at both ends of the roller 24, and connecting blocks 31 are fixedly connected to the mounting handle 13; the connecting shafts 32 at both ends of the roller 24 are respectively penetrated through the connecting blocks 31 on the mounting handle 13, and the connecting shafts 32 and the connecting blocks 31 are rotatably connected, so that the roller 24 and the mounting handle 13 are stably connected, and the roller 24 can rotate flexibly around the connecting shaft 32 as the rotation center.

[0074] As shown in Figure 16 , the roller 24 has a hollow inner cavity 25, a freely rotatable ball 26 is installed in the inner cavity 25, and the inner cavity 25 has a free area for the ball 26 to move and rotate, ensuring that the ball 26 can move flexibly in the inner cavity 25. After the roller 24 is assembled, its outer wall can contact the surface of the protective cover 5; when the protective cover 5 is driven to rotate, it will drive the roller 24 in contact with it to rotate synchronously. During the rotation of the roller 24, the ball 26 in the inner cavity 25 will roll with the rotation of the roller 24, and the rolling ball 26 will continuously impact the inner wall of the roller 24, thereby generating vibration, which will be further transmitted to the mounting handle 13 connected with the roller 24.

[0075] The roller 24 is installed on one side of the mounting handle 13, and its function is to clean the wiper blade 14 before it contacts the protective cover 5. The specific working process and principle are as follows:

[0076] When the oscillating motor 23 starts and drives the mounting handle 13 to adjust the angle, bringing the wiper 7 closer to the surface of the protective cover 5, the roller 24 will contact the surface of the protective cover 5 before the wiper blade 14. At this time, the oscillating motor 23 keeps the mounting handle 13 in this position for a period of time. If the wiper 7 has not been used for a long time, a lot of dust will easily accumulate on the surface of its wiper blade 14. During this stage, as the protective cover 5 continues to rotate, it will drive the roller 24 in contact with it to rotate synchronously. When the roller 24 rotates, the balls 26 inside it will roll and hit the inner wall of the roller 24. The resulting vibration will be transmitted to the mounting handle 13 and the wiper blade 14. Through the vibration, the dust attached to the surface of the wiper blade 14 will be removed, preventing dust residue.

[0077] After the preset dwell time ends, the swing motor 23 restarts, driving the mounting handle 13 to continue adjusting the angle, so that the scraper 14 smoothly adheres to the surface of the protective cover 5, and performs formal scraping and cleaning in conjunction with the rotation of the protective cover 5. By cleaning the dust on the scraper 14 through vibration, the dust on the scraper 14 that has not been cleaned can be effectively reduced and prevented from contaminating the surface of the protective cover 5, further improving the overall cleaning effect and ensuring the clarity of the field of view captured by the lens 2.

[0078] When the scraper 14 and scraper 16 are cleaning the surface of the protective cover 5, the roller 24 can be selected to continue rotating.

[0079] If the roller 24 is no longer allowed to rotate when the wiper blade 14 and wiper 16 are cleaning the surface of the protective cover 5, the thickness and width of the wiper 16 can be designed to be slightly larger, and the wiper 16 can be made of a rigid material to provide support. When the swing motor 23 drives the wiper 7 to adjust its angle so that the wiper 16 and wiper blade 14 are in contact with the surface of the protective cover 5, the wiper 16 will form a support through its own size, separating the roller 24 from the surface of the protective cover 5 by a certain distance, so that the roller 24 no longer contacts the protective cover 5. After losing contact, the roller 24 cannot rotate with the protective cover 5.

[0080] If the roller 24 needs to continue rotating when the scraper 14 and scraper 16 are cleaning the surface of the protective cover 5, the thickness and width of the scraper 16 can be designed to be slightly smaller so that the roller 24 is always in contact with the surface of the protective cover 5. The roller 24 will continue to rotate with the protective cover 5.

[0081] like Figure 17 As shown, to enhance the vibration effect of the balls 26 within the inner cavity 25 and to transmit vibration more evenly, several baffles 27 are installed in the inner cavity 25 of the roller 24. All baffles 27 are arranged at intervals along the length of the inner cavity 25, dividing the entire inner cavity 25 into multiple independent receiving cavities 28 that are not interconnected, and each receiving cavity 28 contains freely rolling balls 26.

[0082] If the baffle 27 is not set, when the wiper 7 is in a vertical or inclined state, the balls 26 are easily affected by gravity and all accumulate below the inner cavity 25, resulting in concentrated vibration, uneven effect, and poor vibration effect. After the baffle 27 divides the containing cavity 28, the balls 26 can be dispersed and limited in each containing cavity 28, effectively avoiding the accumulation of a large number of balls 26, ensuring that the balls 26 in each containing cavity 28 can independently roll and impact the cavity wall when the roller 24 rotates, thereby generating more uniform vibration and ensuring the stability and consistency of vibration transmission.

[0083] A protective sleeve 29 is externally sleeved on the roller 24, which can completely cover the outer circumferential surface of the roller 24, and the material thereof is preferably soft materials such as rubber and foam cotton. It can avoid the direct contact of the metal or hard body of the roller 24 with the surface of the protective cover 5, effectively prevent the transparent surface of the protective cover 5 from being scratched during the rotation of the roller 24, and protect the integrity and light transmittance of the protective cover 5. Moreover, materials such as rubber and foam cotton have good friction coefficient, which can enhance the friction between the roller 24 and the surface of the protective cover 5, ensure that the protective cover 5 can stably drive the roller 24 to rotate synchronously when rotating, avoid the phenomenon of slipping, and ensure the stable realization of the subsequent functions of the roller 24 such as vibration and dust removal.

[0084] In order to further protect the surface of the protective cover 5 and avoid scratches, stains, and slight collision damage during use, a transparent protective film can be attached to the outer surface of the protective cover 5. The protective film needs to have high light transmittance to ensure that it does not affect the shooting field of view of the lens 2 through the protective cover 5 after being attached; at the same time, its surface should have certain wear resistance and stain resistance, which can resist the wear of daily friction on the protective cover 5 and reduce the residue of rainwater and dust on the surface, thereby improving the durability and cleaning convenience of the protective cover 5.

[0085] In summary, the high-definition monitoring camera, when in use, when there is no rainfall, the lens 2 does not need to be cleaned, the protective cover 5 remains stationary, when the rain causes the protective cover 5 to be attached with rainwater and dirt, the driving motor 6 is started and drives the protective cover 5 to rotate at high speed, and the centrifugal force generated by the rotation throws the surface rainwater and part of the dirt, achieving preliminary cleaning; at this time, the wiper 7 is still in place and does not intervene in the cleaning process. If further deep cleaning is required, the swing motor 23 can be used to drive the wiper 7 to rotate to the contact position with the protective cover 5; when the roller shaft 24 contacts the rotating surface of the protective cover 5, the roller shaft 24 rotates synchronously with the protective cover 5, and the internal rolling ball 26 also rotates, causing the mounting handle 13 to vibrate, and then the dust on the wiper strip 14 falls off. Subsequently, with the further adjustment of the wiper 7, the wiper strip 14 and the scraper 16 are located on the surface of the protective cover 5, and the scraper 16 can guide the sewage through the through hole 18 into the water flow groove 15 and discharge in time, and at the same time, the wiper strip 14 wipes and cleans the surface of the protective cover 5. During the rotation of the protective cover 5, the surface position of the protective cover 5 corresponding to the shooting area of the lens 2 will gradually rotate to the position of the wiper 7, and at this time, the wiper 7 will wipe and clean the area; after cleaning is completed, the protective cover 5 continues to rotate, and the area that has been wiped clean is repositioned to the position corresponding to the shooting of the lens 2, and the entire cleaning process is realized by the rotation of the protective cover 5. After cleaning is completed, the swing motor 23 drives the wiper 7 back to the original position, and the movement trajectory of the wiper 7 does not coincide with the shooting field of view range a of the lens 2 during the entire movement process.

[0086] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-definition monitoring camera, comprising a camera main body, the camera main body comprising a camera body (1) and a lens (2), a shell (3) is mounted on the outside of the camera main body, and an opening (4) is formed in the shell (3) corresponding to the position of the lens (2), characterized in that: The shell (3) is rotatably provided with a protective cover (5) for protecting the opening (4), the protective cover (5) is made of transparent material, and a driving motor (6) is drivingly connected with the protective cover (5), the driving motor (6) drives the protective cover (5) to rotate around the rotation center (0) thereof, the area of the protective cover (5) is larger than that of the lens (2), and the mounting position of the lens (2) is deviated from the rotation center (0) of the protective cover (5). The shell (3) is rotatably provided with a protective cover (5) for protecting the opening (4), the protective cover (5) is made of transparent material, and a driving motor (6) is drivingly connected with the protective cover (5), the driving motor (6) drives the protective cover (5) to rotate around the rotation center (0) thereof, the area of the protective cover (5) is larger than that of the lens (2), and the mounting position of the lens (2) is deviated from the rotation center (0) of the protective cover (5).

2. The high definition surveillance camera of claim 1, wherein: The radius (r) of the protective cover (5) is greater than the diameter (d) of the lens (2), the edge of the lens (2) is away from the rotation center (0) of the protective cover (5) and does not exceed the edge of the protective cover (5).

3. The high definition surveillance camera of claim 2, wherein: The protective cover (5) is fixedly mounted on the sleeve (8) connected with the protective cover (5), a bearing (9) is mounted on the outer wall of the sleeve (8), the inner ring of the bearing (9) is connected with the outer wall of the sleeve (8), and the outer ring of the bearing (9) is connected with the shell (3); and the driving motor (6) is fixedly mounted on the shell (3).

4. The high definition surveillance camera of claim 3, wherein: The rotation shaft (10) of the driving motor (6) is coaxially connected with a gear (11), and the outer wall of the sleeve (8) is provided with an outer gear (12) engaged with the gear (11).

5. The high definition surveillance camera of claim 3, wherein: The rotation shaft (10) of the driving motor (6) is connected with the rotation center (0) of the protective cover (5).

6. The high definition surveillance camera of claim 1, wherein: The wiper (7) comprises a mounting handle (13) and a wiper strip (14) mounted on the side of the mounting handle (13) facing the protective cover (5).

7. The high definition surveillance camera of claim 6, wherein: A water groove (15) is formed in the outer wall of the mounting handle (13), a wiper plate (16) is mounted on the side of the mounting handle (13) facing the protective cover (5), and a through hole (18) is formed in the mounting handle (13) and communicates with the water groove (15), the through hole (18) is located at the side of the wiper plate (16), water on the protective cover (5) flows along the wiper plate (16) and flows into the water groove (15) through the through hole (18) during the wiper plate (16) wiper process, and a drain hole (20) is formed in the end of the water groove (15); the wiper plate (16) is provided with a protective strip (17) in contact with the protective cover (5); and a guide groove (19) is formed in the inside of the water groove (15).

8. The high definition surveillance camera of claim 6 or 7, wherein: The wiper (7) adjusts the angle through a swing motor (23), the swing motor (23) is fixedly mounted on the shell (3), and the mounting handle (13) is connected with the rotation end of the swing motor (23).

9. The high definition surveillance camera of claim 8, wherein: The outer side of the mounting handle (13) is rotatably mounted with a roller shaft (24), the roller shaft (24) has a hollow cavity (25) arranged inside, the cavity (25) is mounted with freely rolling balls (26); the outer wall of the roller shaft (24) can contact with the protective cover (5), when the protective cover (5) rotates, the roller shaft (24) in contact with the protective cover (5) rotates synchronously; in the rotating process of the roller shaft (24), the balls (26) in the cavity (25) roll and hit the inner wall of the roller shaft (24), and vibration is generated and transmitted to the mounting handle (13).

10. The high definition surveillance camera of claim 9, wherein: The cavity (25) of the roller shaft (24) is mounted with several baffles (27), the baffles (27) are arranged along the length direction of the cavity (25) to divide the cavity (25) into several mutually unconnected containing cavities (28), and each containing cavity (28) is mounted with freely rolling balls (26); the outer part of the roller shaft (24) is sleeved with a protective sleeve (29), and the protective sleeve (29) covers the outer circumferential surface of the roller shaft (24).

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