Tunnel monitoring equipment

By introducing a rotating pan-tilt unit and cleaning components into the tunnel monitoring equipment, combined with water spraying and blowing functions, the problem of camera window contamination was solved, achieving efficient cleaning and stable monitoring results.

CN224181465UActive Publication Date: 2026-05-01BEIJING RUITUO ELECTRONIC DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING RUITUO ELECTRONIC DEV CO LTD
Filing Date
2025-05-09
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The camera windows of existing tunnel monitoring equipment are easily covered by dust, oil and other contaminants, which affects the quality of monitoring images. Traditional manual cleaning methods are inefficient and cannot remove contaminants in a timely manner.

Method used

A tunnel monitoring device was designed, comprising a rotating pan-tilt unit, a cleaning component, and a blower. The cleaning component consists of a rotatable positioning block and a double-sided velvet cloth, and combines water spraying and blowing functions to achieve automatic cleaning of the camera window.

Benefits of technology

It enables flexible adjustment of the surveillance camera's viewing angle, ensuring clear monitoring images, quickly cleaning the camera window, improving the reliability and stability of tunnel monitoring, and avoiding the impact of residual moisture.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses tunnel monitoring equipment, which is characterized in that a fixed support is arranged at the top of a tunnel, a rotary holder is mounted below the fixed support, a mounting box is arranged on the rotary holder, a semicircular camera window is arranged on the front side of the mounting box, a monitoring camera is arranged in the mounting box, and a lens of the monitoring camera is aligned with the camera window. Meanwhile, a cleaning assembly is arranged, an arc-shaped positioning block is matched with the camera window, the two ends of the arc-shaped positioning block are rotationally connected with the mounting box, the surface of the positioning block is covered with double-faced plush wiping cloth and makes contact with the camera window, and the positioning block is of a hollow structure, is provided with a plurality of water outlet holes communicated with a water inlet pipe and can spray water for cleaning. In addition, an air blower is arranged on the supporting frame connected with the mounting box and can blow air to the camera shooting window. The equipment is mainly used for real-time monitoring in a tunnel, and can effectively ensure the clearness of a monitoring picture.
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Description

Tunnel monitoring equipment Technical Field

[0001] This utility model relates to the field of tunnel monitoring technology. More specifically, this utility model relates to a tunnel monitoring device. Background Technology

[0002] In the daily operation and management of tunnels, monitoring equipment plays a crucial role. Real-time monitoring of traffic conditions, personnel activities, and facility status within the tunnel allows for the timely detection of potential safety hazards and prompt response, ensuring tunnel safety and smooth traffic flow. However, existing tunnel monitoring equipment faces numerous problems in practical use. Among these, the most prominent is the susceptibility of camera windows to contamination. The tunnel environment is extremely complex; vehicles generate significant amounts of dust, mud, and other particulate matter, while exhaust fumes and oil pollutants also permeate the air. These contaminants gradually adhere to the camera window surface, accumulating over time and severely impacting the camera's field of view and image quality. Previously clear monitoring images become blurry, making it difficult to accurately capture the actual situation within the tunnel, significantly diminishing the functionality of the monitoring equipment. Various methods have been employed to address camera window contamination. One common method is regular manual cleaning. However, this method has significant limitations; manual cleaning is time-consuming and cannot promptly remove contaminants from the camera windows. Summary of the Invention

[0003] Another objective of this invention is to provide a tunnel monitoring device. Existing tunnel monitoring devices' camera windows are easily covered by dust, oil, and other contaminants, affecting the image quality of the monitoring cameras and thus reducing monitoring effectiveness. Traditional cleaning methods are insufficient to meet the demands for real-time, efficient cleaning. This invention solves the problem of cleaning camera windows by incorporating a cleaning component adapted to the camera window, utilizing a rotatable positioning block and a double-sided felt cloth, along with water spraying and blowing functions, ensuring clear monitoring images.

[0004] To achieve these objectives and other advantages of this invention, a tunnel monitoring device is provided, comprising:

[0005] A fixed support is installed at the top of the tunnel, and a rotating platform is installed below the fixed support.

[0006] The mounting box is located on a rotating platform. A semi-circular camera window is provided on the front side of the mounting box. The monitoring camera is located inside the mounting box, and the camera lens of the monitoring camera is pointed at the camera window.

[0007] A cleaning component includes an arc-shaped positioning block adapted to the camera window. Both ends of the positioning block are rotatably connected to the mounting box, and the positioning block is rotatable relative to the camera window. A double-sided velvet cloth is applied to the surface of the positioning block facing the camera window, and the double-sided velvet cloth contacts the camera window. The positioning block has a hollow structure, and its surface facing the camera window has multiple water outlet holes. These water outlet holes communicate with the hollow portion of the positioning block, and a water inlet pipe is connected to the hollow portion of the positioning block.

[0008] A hair dryer is mounted on a support frame connected to the mounting box, wherein the hair dryer blows air toward the camera window.

[0009] Preferably, the mounting box is provided with a first rotary motor, the output shaft of the first rotary motor is provided with a drive gear, and the end of the positioning block connected to the camera window is provided with a drive shaft, the drive shaft is provided with a driven gear, the driven gear meshes with the drive gear to drive the positioning block to rotate.

[0010] Preferably, the mounting box has a cylindrical structure, the diameter of the circle containing the camera window is larger than the diameter of the mounting box, the upper end of the camera window is flush with the upper end of the mounting box, and the lower end of the camera window is lower than the lower end of the mounting box. When the positioning block is rotated to the lowest position, the positioning block is located below the mounting box.

[0011] The double-sided velvet cloth is larger than the inner surface of the positioning block. The two side walls of the positioning block are recessed to form multiple T-shaped grooves. The grooves are equipped with pull-out fixing strips. When the double-sided velvet cloth needs to be connected to the positioning block, the double-sided velvet cloth is partially located in the groove and fixed by the fixing strips. When the double-sided velvet cloth needs to be replaced, the fixing strips are separated from the grooves.

[0012] Preferably, the sliding grooves on the two side walls of the positioning block are provided one-to-one, and each of the two corresponding fixing strips has a connecting hole through both ends. Bolts are inserted into the two corresponding connecting holes of the two fixing strips, and the ends of the bolts are provided with nuts. When the nuts are tightened, the two fixing strips are clamped together to fix the double-sided velvet wiping cloth.

[0013] Preferably, a water storage tank is provided at the top of the tunnel. The water storage tank has an outlet and an inlet. A water outlet pipe is connected to the outlet and is connected to the hollow part of the positioning block.

[0014] Preferably, the hollow portion of the positioning block is provided with a water spray pipe, and the water spray pipe is provided with multiple nozzles, which are connected one-to-one through multiple water outlet holes. The water inlet end of the water spray pipe is connected to the water outlet pipe, and the side wall of the water outlet hole is provided with an annular sealing ring, which abuts against the nozzle.

[0015] This utility model has at least the following beneficial effects:

[0016] This utility model's tunnel monitoring equipment enables flexible adjustment of the camera's viewing angle, expanding the monitoring range. The cleaning component effectively cleans the camera window, ensuring clear monitoring images. Simultaneously, the blower quickly dries moisture from the camera window surface, preventing residual moisture from affecting monitoring performance and improving the reliability and stability of tunnel monitoring. By setting the camera window's diameter to be larger than the mounting box's size, the positioning block wipes the camera window when in contact with it. When the double-sided felt cloth needs replacing or after wiping, the positioning block is rotated to the bottom of the mounting box. This design facilitates drying of the double-sided felt cloth after wiping and allows for easy replacement of the cloth by separating the positioning block from the camera window. Furthermore, the inclusion of a sliding groove and fixing strip not only enables rapid fixing of the double-sided felt cloth but also improves the stability of the fabric.

[0017] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0018] Figure 1 is a structural schematic diagram of the tunnel monitoring equipment according to one of the technical solutions of this utility model;

[0019] Figure 2 is an enlarged view of A in Figure 1;

[0020] Figure 3 is a structural schematic diagram of the tunnel monitoring equipment according to one of the technical solutions of this utility model; Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0022] As shown in Figures 1-3, this utility model provides a tunnel monitoring device, including:

[0023] A fixed support is installed at the top of the tunnel, and a rotating gimbal 1 is installed below the fixed support;

[0024] Mounting box 2 is mounted on rotating gimbal 1. The front side of the mounting box 2 is provided with a semi-circular camera window 6. The monitoring camera 3 is installed inside the mounting box 2, and the camera lens of the monitoring camera 3 is aimed at the camera window 6.

[0025] A cleaning component includes an arc-shaped positioning block 8 adapted to the camera window 6. The two ends of the positioning block 8 are rotatably connected to the mounting box 2, and the positioning block 8 can rotate relative to the camera window 6. The surface of the positioning block 8 facing the camera window 6 is covered with a double-sided velvet cloth 7, which contacts the camera window 6. The positioning block 8 has a hollow structure, and the surface of the positioning block 8 facing the camera window 6 has multiple water outlet holes. The water outlet holes communicate with the hollow portion of the positioning holes, and the hollow portion of the positioning block 8 is connected to a water inlet pipe.

[0026] A hair dryer 5 is mounted on a support frame 4, which is connected to the mounting box 2. The hair dryer 5 blows air toward the camera window 6.

[0027] In this technical solution, a fixed bracket and a rotating pan-tilt unit 1 are used. The fixed bracket can be installed at a height of 5-8 meters above the ground at the top of the tunnel. Common steel structure fixed brackets can be selected, and the material can be Q235 steel. The rotating pan-tilt unit 1 is bolted to the bottom of the fixed bracket. A similar process is used in some bridge monitoring equipment, where a fixed structure is installed on the top of the bridge and equipped with a rotating pan-tilt unit 1. The mounting box 2 can be made of stainless steel and is cylindrical. The camera window 6 is semi-circular. The monitoring camera 3 is installed inside the mounting box 2, with the lens pointing at the camera window 6. The mounting box 2 is cylindrical. The positioning block 8 can be made of aluminum alloy and has a hollow structure. The number of water outlets on the positioning block 8 is determined according to the size of the camera window 6. The double-sided velvet cloth 7 can be made of polyester fiber and is fixed to the positioning block 8 by pasting or slotting. The blower 5 is used to dry the residual moisture on the surface of the camera window 6.

[0028] During use, first turn on the monitoring camera 3, and operate the rotating pan-tilt head 1 according to the actual monitoring needs to drive the mounting box 2 to rotate and adjust the camera angle to fully cover the key areas inside the tunnel; when the camera window 6 is covered by pollutants and affects the monitoring effect, turn on the water source to let water flow into the hollow part of the positioning block 8 through the water inlet pipe, and spray it onto the double-sided velvet cloth 7 from the water outlet. The positioning block 8 rotates to make the double-sided velvet cloth wipe the camera window 6. Finally, turn on the blower 5 to dry the window and complete the cleaning.

[0029] By adopting this technical solution, the tunnel monitoring equipment of this utility model can flexibly adjust the viewing angle of the monitoring camera 3, expand the monitoring range, and the cleaning component can effectively clean the camera window 6 to ensure the clarity of the monitoring image. At the same time, the blower 5 can quickly dry the moisture on the surface of the camera window 6, avoiding the impact of moisture residue on the monitoring effect, thus improving the reliability and stability of tunnel monitoring.

[0030] In another technical solution, a first rotary motor is provided on the side of the mounting box 2, and a drive gear is provided on the output shaft of the first rotary motor. A drive shaft 13 is provided at the end of the positioning block 8 connected to the camera window 6. A driven gear is provided on the drive shaft 13 (the drive gear is mounted on the output shaft of the first rotary motor, and the driven gear is mounted on the drive shaft 13; the two are driven by meshing). The driven gear meshes with the drive gear to drive the positioning block 8 to rotate. Using this technical solution, the present invention, through the cooperation of the first rotary motor, the drive gear, the driven gear, and the drive shaft 13, can provide stable and reliable power for the rotation of the positioning block 8, ensuring that the positioning block 8 rotates at a preset speed and angle, achieving comprehensive cleaning of the camera window 6, and improving the working efficiency and stability of the cleaning components.

[0031] In another technical solution, the mounting box 2 is a cylindrical structure, the diameter of the circle containing the camera window 6 is larger than the diameter of the mounting box 2, and the upper end of the camera window 6 is flush with the upper end of the mounting box 2, while the lower end of the camera window 6 is lower than the lower end of the mounting box 2. The rotation angle of the positioning block 8 is greater than 180°. When the positioning block 8 rotates to the lowest position, the positioning block 8 is located below the mounting box 2, and the positioning block 8 is separated from the camera window 6.

[0032] The double-sided velvet cloth 7 is larger than the inner surface of the positioning block 8. The two side walls of the positioning block 8 are recessed to form multiple T-shaped grooves 11. Each groove 11 has a retractable fixing strip 12. When the double-sided velvet cloth 7 needs to be connected to the positioning block 8, part of the double-sided velvet cloth 7 is located in the groove 11 and fixed by the fixing strip 12. When the double-sided velvet cloth 7 needs to be replaced, the fixing strip 12 is separated from the groove 11. The fixing strip 12 can be made of aluminum alloy and is inserted into the groove 11 to fix the double-sided velvet cloth 7. When the fixing strip 12 is located in the groove 11, both ends of the fixing strip 12 extend out of the groove 11. By adopting this technical solution, the diameter of the camera window 6 is larger than the size of the mounting box 2. When the positioning block 8 contacts the camera window 6, the camera window 6 is wiped. When it is necessary to replace the double-sided velvet cloth 7 or after wiping, the positioning block 8 is rotated to the bottom of the mounting box 2. This setting facilitates the drying of the double-sided velvet cloth 7 after wiping, and the separation of the positioning block 8 from the camera window 6 facilitates the replacement of the double-sided velvet cloth 7. By setting the sliding groove 11 and the fixing strip 12, this invention can not only achieve quick fixation of the double-sided velvet cloth 7, but also improve the stability of the double-sided velvet cloth.

[0033] In another technical solution, the sliding grooves 11 on the two side walls of the positioning block 8 are arranged in a one-to-one correspondence. Each of the two corresponding fixing strips 12 has connecting holes at both ends. Bolts are inserted into the corresponding connecting holes of the two fixing strips 12, and nuts are provided at the ends of the bolts. When the nuts are tightened, the two fixing strips 12 clamp together to fix the double-sided velvet cloth 7. By tightening the nuts, the two fixing strips 12 clamp the double-sided velvet cloth 7. Using this technical solution, the present invention, through the cooperation of the fixing strips 12, connecting holes, bolts, and nuts, can firmly fix the double-sided velvet cloth 7 to the positioning block 8. During the cleaning process, the cloth will not loosen or shift, ensuring the stability and consistency of cleaning, and improving the reliability and practicality of the cleaning component.

[0034] In another technical solution, a water storage tank is provided at the top of the tunnel. The water storage tank can be made of polyethylene plastic. The water storage tank has an outlet and an inlet. A water outlet pipe is connected to the outlet. The water outlet pipe is connected to the hollow part of the positioning block 8. The water outlet pipe is a flexible hose, which is more suitable for the movement of the positioning block 8.

[0035] In another technical solution, the hollow portion of the positioning block 8 is equipped with a water spray pipe 9, which has multiple nozzles 10. Each nozzle 10 passes through and extends into a corresponding water outlet. The inlet end of the water spray pipe 9 is connected to the outlet pipe. An annular sealing ring is provided on the sidewall of the outlet, and this sealing ring abuts against the nozzle 10. This technical solution, with its water spray pipe 9, nozzles 10, and annular sealing ring, allows water to be sprayed from the outlet to the double-sided felt cloth 7, improving the targeting and effectiveness of cleaning. The annular sealing ring prevents water leakage, ensuring the effective use of water resources and avoiding waste.

[0036] The number of devices and processing capacity described herein are for simplification. Applications, modifications, and variations of the tunnel monitoring equipment of this invention will be readily apparent to those skilled in the art.

[0037] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A tunnel monitoring device, characterized in that, include: A fixed support is installed at the top of the tunnel, and a rotating platform is installed below the fixed support. The mounting box is mounted on a rotating platform. A semi-circular camera window is located on the front of the mounting box, where a monitoring camera is housed, with its lens aligned with the camera window. A cleaning component includes an arc-shaped positioning block adapted to the camera window. Both ends of the positioning block are rotatably connected to the mounting box, and the positioning block can rotate relative to the camera window. A double-sided velvet cloth is covered on the surface of the positioning block facing the camera window, and the cloth contacts the camera window. The positioning block has a hollow structure, and its surface facing the camera window has multiple water outlets that communicate with the hollow portion of the positioning block. A water inlet pipe is connected to the hollow portion of the positioning block. A blower is mounted on a support frame connected to the mounting box, and the blower blows air towards the camera window.

2. The tunnel monitoring equipment as described in claim 1, characterized in that, The mounting box is equipped with a first rotary motor, and the output shaft of the first rotary motor is equipped with a drive gear. The end of the positioning block connected to the camera window is equipped with a drive shaft, and the drive shaft is equipped with a driven gear. The driven gear meshes with the drive gear to drive the positioning block to rotate.

3. The tunnel monitoring equipment as described in claim 1, characterized in that, The mounting box has a cylindrical structure. The diameter of the circle containing the camera window is larger than the diameter of the mounting box. The upper end of the camera window is flush with the upper end of the mounting box, and the lower end of the camera window is lower than the lower end of the mounting box. When the positioning block is rotated to its lowest position, the positioning block is located below the mounting box. The double-sided velvet cloth is larger than the inner surface of the positioning block. The two side walls of the positioning block are recessed to form multiple T-shaped grooves. The grooves are equipped with pull-out fixing strips. When the double-sided velvet cloth needs to be connected to the positioning block, part of the double-sided velvet cloth is located in the groove and fixed by the fixing strip. When the double-sided velvet cloth needs to be replaced, the fixing strip is separated from the groove.

4. The tunnel monitoring equipment as described in claim 3, characterized in that, The two sidewalls of the positioning block are provided with corresponding sliding grooves. Each of the two corresponding fixing strips has a connecting hole through both ends. Bolts are inserted into the corresponding two connecting holes of the two fixing strips. The bolts have nuts at their ends. When the nuts are tightened, the two fixing strips clamp together to fix the double-sided velvet wiping cloth.

5. The tunnel monitoring equipment as described in claim 1, characterized in that, A water storage tank is installed at the top of the tunnel. The water storage tank has an outlet and an inlet. A water outlet pipe is connected to the outlet and is connected to the hollow part of the positioning block.

6. The tunnel monitoring equipment as described in claim 5, characterized in that, The hollow part of the positioning block is provided with a water spray pipe, and the water spray pipe is provided with multiple nozzles. The multiple nozzles pass through and extend into multiple water outlet holes in a corresponding manner. The water inlet end of the water spray pipe is connected to the water outlet pipe. The side wall of the water outlet hole is provided with an annular sealing ring, and the sealing ring abuts against the nozzle.