No-dead-corner monitoring device for smart city

By combining the movable frame and base with a stepper motor drive, the problems of camera rotation dead zone and support rod obstruction are solved, achieving monitoring without blind spots and improving the coverage and effectiveness of the monitoring device.

CN223975796UActive Publication Date: 2026-03-06HANGZHOU JIECHUANG SMART CITY CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-03
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

The camera rotation angle of existing surveillance devices is limited by the data cable, resulting in dead zones, and the support rod obstructs the view, causing image loss.

Method used

It adopts a combination structure of movable frame and base, and uses the meshing of connecting bearing and gear plate to drive synchronous belt and synchronous shaft with stepper motor to achieve camera rotation without blind spots and avoid the support rod from blocking the view.

Benefits of technology

It enables omnidirectional adjustment of the camera, avoiding blind spots and image obstruction, and improving the monitoring coverage and effectiveness.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223975796U_ABST
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Abstract

The utility model discloses a dead-corner-free monitoring device for a smart city, and relates to the technical field of monitoring devices. The dead-corner-free monitoring device for the smart city comprises a supporting rod, a monitoring mechanism is arranged at the top end of the supporting rod, a connecting assembly comprises a connecting frame fixedly installed at the top end of the supporting rod, a connecting bearing is installed at the front end of the connecting frame in an embedded mode, and a movable frame is installed in the connecting bearing in a penetrating mode; pressure bearings are installed at the two ends of the movable frame, a half gear ring is fixedly installed at the rear end of the movable frame, a base is fixedly installed at the front end of the movable frame, a fluted disc is fixedly installed on the inner side of the base, and when the stepping motor drives the synchronous wheel to rotate, the synchronous shaft drives the base to rotate through the fluted disc; the base can drive the camera to rotate when rotating, so that the orientation of the camera can be continuously adjusted through the base when the camera rotates to a dead zone, and dead-corner-free monitoring is realized while excessive twisting of the data line is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of monitoring device technology, specifically a blind-spot-free monitoring device for smart cities. Background Technology

[0002] Originating in the media field, smart cities refer to the integration and interconnection of urban systems and services through various information technologies or innovative concepts to improve resource utilization efficiency, optimize urban management and services, and enhance the quality of life for citizens. Smart city integrated security management remote monitoring devices are monitoring equipment used to improve the security of smart cities during the comprehensive management process. These devices can remotely monitor and record data on the smart city, thereby facilitating its management.

[0003] A relevant reference is Chinese utility model patent CN214101520U, which discloses a monitoring device for smart city security management. It includes a lifting device within a support column to drive a lifting platform, enabling the monitoring component to move up and down. A drive mechanism within the lifting platform's recess allows for the left and right movement of the monitoring component. The monitoring component includes a camera and a turntable. A third motor drives the turntable to rotate, thus allowing the camera to rotate left and right. A first and second rotating shaft are located on either side of the camera. A fourth motor drives the second rotating shaft to rotate, allowing the camera to swing up and down. This utility model enables comprehensive monitoring without blind spots and also includes a streetlight installed above the monitoring component for simultaneous illumination and monitoring.

[0004] The aforementioned monitoring device uses two rotating shafts and a motor to rotate the camera and adjust its direction. To avoid damage caused by excessive twisting of the data cable, this method is limited by the influence of the camera's data transmission cable, resulting in a certain dead zone in the camera's rotation angle and preventing omnidirectional adjustment. In addition, to increase the height of the camera, existing cameras are generally installed at the top of a support rod. Due to the obstruction of the support rod, a portion of the camera's image will be missing. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a blind-spot-free monitoring device for smart cities, which solves the problems of missing monitoring images due to obstruction by the support structure and the existence of a certain dead zone in the rotation angle.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a blind-spot-free monitoring device for smart cities, comprising a support rod, the top of which is equipped with a monitoring mechanism.

[0007] The connecting assembly includes a connecting frame fixedly installed at the top of a support rod, a connecting bearing fitted at the front end of the connecting frame, a movable frame inserted inside the connecting bearing, pressure bearings installed at both ends of the movable frame, a semi-toothed ring fixedly installed at the rear end of the movable frame, a base fixedly installed at the front end of the movable frame, and a toothed disc fixedly installed on the inner side of the base.

[0008] The drive component is used to drive the connecting components to rotate in order to adjust the monitoring range.

[0009] Preferably, the monitoring mechanism further includes a camera fixedly installed on the front side of the base, and a top cover fixedly installed on the top of the connecting frame. A solar panel is fixedly installed on the top cover, and a battery is installed inside the top cover.

[0010] Preferably, the top and bottom of the rear end of the movable frame are provided with columnar protrusions, and the movable frame is rotatably connected to the connecting frame through the columnar protrusions at its rear end and the connecting bearing. The rear end of the movable frame is a half-disc structure, and the half-tooth ring is fixedly installed on the outside of the rear disc structure of the movable frame.

[0011] Preferably, the inner side of the base is provided with a cylindrical protrusion, and the base is rotatably connected to the movable frame through its own inner cylindrical protrusion and the connecting bearing. The gear plate is fixedly installed at the end of the inner cylindrical structure of the base, and the pressure bearing is fixedly installed at the left and right ends of the top and bottom surfaces of the movable frame, respectively located between the movable frame and the connecting frame, and between the movable frame and the base.

[0012] Preferably, the drive assembly includes a stepper motor fixedly mounted above the connecting frame, a synchronous pulley fixedly mounted on the outer side of the stepper motor shaft, a synchronous belt fitted on the outer side of the synchronous pulley, a synchronous shaft fitted on the end of the synchronous belt, and the drive assembly is also mounted inside the movable frame.

[0013] Preferably, the center of the synchronous shaft is provided with a protrusion that fits into the toothed structure of the inner wall of the synchronous belt, and the upper and lower sides of the synchronous shaft are provided with toothed structures that fit into the semi-toothed ring and the toothed disc.

[0014] Beneficial effects

[0015] This invention provides a blind-spot-free monitoring device for smart cities. Compared with existing technologies, it has the following advantages:

[0016] (1) The smart city-use blind-spot-free monitoring device uses a movable frame and a base, and a connecting frame to limit the height of the movable frame. Since the movable frame is connected to the connecting frame by a connecting bearing, the connecting frame can adjust the position of the base by rotating. The base can drive the camera to rotate, thereby adjusting the position and orientation of the camera. This allows the camera to rotate with the opening structure at the front end of the connecting frame as a reference while its internal motor drives the angle adjustment. When the target is blocked by the support rod, the camera and the support rod can be misaligned by adjusting the rotation angle of the movable frame, thus preventing the support rod from blocking the monitoring screen.

[0017] (2) The blind-spot-free monitoring device used in this smart city, through the setting of the base, the toothed disc on the inner side of the base meshes with the toothed structure at both ends of the synchronous shaft. Since the synchronous wheel is connected to the synchronous shaft through the synchronous belt, and the upper and lower ends of the synchronous shaft are connected to the connecting frame and the movable frame through the connecting bearing, when the stepper motor drives the synchronous wheel to rotate, the synchronous shaft will drive the base to rotate through the toothed disc. When the base rotates, it can drive the camera to rotate. Thus, when the camera rotates to the dead zone, the orientation of the camera can be adjusted through the base, thereby achieving blind-spot-free monitoring while avoiding excessive twisting of the data cable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the connecting frame and the movable frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the battery installation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the meshing connection structure between the synchronous shaft and the gear disc of this utility model;

[0022] In the diagram: 1. Support rod; 2. Monitoring mechanism; 21. Connecting component; 211. Connecting frame; 212. Connecting bearing; 213. Movable frame; 214. Pressure bearing; 215. Semi-gear ring; 216. Base; 217. Gear plate; 22. Drive component; 221. Stepper motor; 222. Synchronous pulley; 223. Synchronous belt; 224. Synchronous shaft; 23. Camera; 24. Top cover; 25. Solar panel; 26. Battery. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a smart city-use monitoring device with no blind spots, including a support rod 1, with a monitoring mechanism 2 installed at the top of the support rod 1.

[0025] The connecting assembly 21 includes a connecting frame 211 fixedly installed at the top of the support rod 1. A connecting bearing 212 is fitted at the front end of the connecting frame 211. A movable frame 213 is inserted inside the connecting bearing 212. Pressure bearings 214 are installed at both ends of the movable frame 213. A semi-toothed ring 215 is fixedly installed at the rear end of the movable frame 213. A base 216 is fixedly installed at the front end of the movable frame 213. A gear disc 217 is fixedly installed on the inner side of the base 216. Columnar protrusions are provided at the top and bottom of the rear end of the movable frame 213. The movable frame 213 connects to the connecting rod 1 via the columnar protrusions at its rear end and the connecting bearing 212. The frames 211 are rotatably connected. The rear end of the movable frame 213 is a half-disc structure. The half-tooth ring 215 is fixedly installed on the outer side of the rear disc structure of the movable frame 213. The inner side of the base 216 is provided with a cylindrical protrusion. The base 216 is rotatably connected to the movable frame 213 through its own inner cylindrical protrusion and the connecting bearing 212. The toothed disc 217 is fixedly installed at the end of the inner cylindrical structure of the base 216. The pressure bearing 214 is fixedly installed at the left and right ends of the top and bottom surfaces of the movable frame 213, respectively located between the contact surfaces of the movable frame 213 and the connecting frame 211, and between the movable frame 213 and the base 216.

[0026] Specifically, the support rod 1 can support the monitoring mechanism 2, and the height of the movable frame 213 is limited by the connecting frame 211. Since the movable frame 213 is rotatably connected to the connecting frame 211 through the connecting bearing 212, the connecting frame 211 can adjust the position of the base 216 by rotating. The pressure bearing 214 can reduce the friction between the contact surfaces of the movable frame 213 and the base 216 when they rotate due to gravity. The semi-tooth ring 215 can facilitate the synchronous shaft 224 to drive the movable frame 213 to rotate, and the base 216 can drive the camera 23 to rotate to adjust the position of the camera 23. The toothed disc 217 can facilitate the synchronous shaft 224 to drive the base 216 to rotate.

[0027] The drive assembly 22 is used to drive the connecting assembly 21 to rotate in order to adjust the monitoring range. The drive assembly 22 includes a stepper motor 221 fixedly installed above the connecting frame 211. A synchronous pulley 222 is fixedly installed on the outer side of the rotating shaft of the stepper motor 221. A synchronous belt 223 is fitted on the outer side of the synchronous pulley 222. A synchronous shaft 224 is fitted on the end of the synchronous belt 223. The drive assembly 22 is also installed inside the movable frame 213. The center of the synchronous shaft 224 is provided with a protrusion that fits into the toothed structure of the inner wall of the synchronous belt 223. The upper and lower sides of the synchronous shaft 224 are provided with toothed structures that fit into the semi-toothed ring 215 and the toothed disc 217.

[0028] Specifically, the stepper motor 221 can drive the synchronous pulley 222 to rotate. Since the synchronous pulley 222 is connected to the synchronous shaft 224 through the synchronous belt 223, and the upper and lower ends of the synchronous shaft 224 are rotatably connected to the connecting frame 211 and the movable frame 213 through the connecting bearing 212, when the stepper motor 221 drives the synchronous pulley 222 to rotate, the synchronous shaft 224 will rotate under the drive of the synchronous belt 223. Through the toothed structure at the upper and lower ends of the synchronous shaft 224, the movable frame 213 is driven to rotate through the half-tooth ring 215, and the base 216 is driven to rotate through the toothed disc 217.

[0029] The monitoring device 2 also includes a camera 23 fixedly installed on the front side of the base 216, and a top cover 24 fixedly installed on the top of the connecting frame 211. A solar panel 25 is fixedly installed on the top of the top cover 24, and a battery 26 is installed inside the top cover 24.

[0030] Specifically, the camera 23 can perform monitoring functions, the top cover 24 can protect the battery 26, the battery 26 is powered by the solar panel 25, and the battery 26 provides power to the device when the power is off. At the same time, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0031] During operation, the movable frame 213 and the base 216 are connected, and the height of the movable frame 213 is limited by the connecting frame 211. Since the movable frame 213 and the connecting frame 211 are rotatably connected via the connecting bearing 212, the connecting frame 211 can adjust the position of the base 216 by rotation. The base 216 can then rotate the camera 23 to adjust its position and orientation. This allows the camera 23 to rotate around the axis of the opening at the front end of the connecting frame 211 while its internal motor adjusts its angle. When the target is obstructed by the support rod 1, the rotation angle of the movable frame 213 can be adjusted to misalign the camera 23 with the support rod 1, preventing the support rod 1 from being blocked. To obstruct the monitoring screen, the toothed disc 217 on the inner side of the base 216 meshes with the toothed structures at both ends of the synchronous shaft 224. Since the synchronous pulley 222 is connected to the synchronous shaft 224 through the synchronous belt 223, and the upper and lower ends of the synchronous shaft 224 are rotatably connected to the connecting frame 211 and the movable frame 213 through the connecting bearing 212, when the stepper motor 221 drives the synchronous pulley 222 to rotate, the synchronous shaft 224 will drive the base 216 to rotate through the toothed disc 217. When the base 216 rotates, it can drive the camera 23 to rotate. Thus, when the camera 23 rotates to the dead zone, the orientation of the camera 23 can be adjusted through the base 216, thereby achieving monitoring without blind spots while avoiding excessive twisting of the data cable.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart city use dead angle monitoring device, comprising a support rod (1), characterized in that: The top end of the support rod (1) is provided with a monitoring mechanism (2): The connecting assembly (21) comprises a connecting frame (211) fixedly installed at the top end of the support rod (1), a connecting bearing (212) is embeddedly installed at the front end of the connecting frame (211), an active frame (213) is insertedly installed inside the connecting bearing (212), pressure bearings (214) are installed at both ends of the active frame (213), a half-tooth ring (215) is fixedly installed at the rear end of the active frame (213), and a base (216) is fixedly installed at the front end of the active frame (213), wherein the inner side of the base (216) is fixedly installed with a tooth disc (217). The driving assembly (22) is used to drive the connecting assembly (21) to rotate, so as to adjust the monitoring range.

2. The device as claimed in claim 1, wherein: The monitoring mechanism (2) further comprises a camera (23) fixedly installed at the front side of the base (216), and a top cover (24) fixedly installed at the top end of the connecting frame (211), wherein the top of the top cover (24) is fixedly installed with a solar panel (25), and the inside of the top cover (24) is installed with a storage battery (26).

3. The device as claimed in claim 1, wherein: The top and bottom of the rear end of the active frame (213) are provided with cylindrical protrusions, the active frame (213) is rotatably connected between the cylindrical protrusions at the rear end of the active frame (213) and the connecting bearing (212) and the connecting frame (211), the rear end of the active frame (213) is a half-disc structure, the half-tooth ring (215) is fixedly installed outside the disc structure at the rear end of the active frame (213), and the inner side of the base (216) is provided with a cylindrical protrusion.

4. The device as claimed in claim 1, wherein: The base (216) is rotatably connected between the cylindrical protrusion at the inner side of the base (216) and the connecting bearing (212) and the active frame (213), the tooth disc (217) is fixedly installed at the end of the cylindrical structure at the inner side of the base (216), and the pressure bearings (214) are fixedly installed at the left and right ends of the top and bottom surfaces of the active frame (213), respectively located between the contact surfaces of the active frame (213) and the connecting frame (211), and the active frame (213) and the base (216).

5. The device as claimed in claim 1, wherein: The driving assembly (22) comprises a stepping motor (221) fixedly installed above the connecting frame (211), a synchronous wheel (222) is fixedly installed outside the rotating shaft of the stepping motor (221), a synchronous belt (223) is embeddedly installed outside the synchronous wheel (222), a synchronous shaft (224) is embeddedly installed at the end of the synchronous belt (223), and the driving assembly (22) is further installed inside the active frame (213).

6. The device as claimed in claim 5, wherein: The center of the synchronous shaft (224) is provided with a protrusion embedded with the tooth-shaped structure of the inner wall of the synchronous belt (223), and the upper and lower sides of the synchronous shaft (224) are provided with tooth-shaped structures embedded with the half-tooth ring (215) and the tooth disc (217).

Citation Information

Patent Citations

  • Monitoring device for smart city safety management

    CN214101520U