A hanging rail type inspection robot with lens protection function
By using a mechanically movable protective structure, the problem of easy contamination of the lens of the rail-mounted inspection robot in harsh environments is solved. This enables the free switching between active protection and normal observation of the lens, improves durability and environmental adaptability, reduces maintenance costs, and extends the lens life.
Patent Information
- Application Number
- CN202521675844.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-07
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-08-07
AI Technical Summary
The lenses of existing rail-mounted inspection robots are easily contaminated in environments with high dust, powder, and oil, leading to physical contamination, corrosion, and scratches on the lens surface, which affects their service life.
It adopts a mechanical movable protective structure, including a rotating component, a sealing component and a wear-resistant sleeve. The lens is protected by a rotating plate and a lens cover, and contaminants are isolated by a light-transmitting sheet. Combined with a pressure spring and a sealing strip, it can freely switch between active protection and normal observation of the lens.
It significantly improves the durability of the lens and the environmental adaptability of the inspection robot, reduces the maintenance frequency and operating costs, extends the service life of the lens, and ensures the stable operation of the inspection system.
Smart Images

Figure CN224927956U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rail-mounted inspection robot technology, specifically a rail-mounted inspection robot with lens protection function. Background Technology
[0002] Rail-mounted inspection robots are intelligent inspection devices deployed on tracks. By integrating navigation and positioning, multi-sensor collaboration, artificial intelligence algorithms, and automated control technologies, they achieve high-precision, all-weather inspections of complex industrial environments. Their technological development stems from the upgrading demands of industrial automation and the urgent need for safety management in high-risk scenarios. Their core objective is to improve operational efficiency and reduce the risk of safety accidents by replacing manual labor in high-risk, highly repetitive tasks.
[0003] Patent CN220575941U discloses a rail-mounted inspection robot, including a rail body and terminal equipment. A horizontal walking mechanism is externally connected to the rail body. The robot body is fixedly connected to the bottom of the horizontal walking mechanism. An electric telescopic rod is fixedly connected to the bottom of the robot body. A detection module is fixedly connected to the bottom of the piston of the electric telescopic rod. A first limiting seat is fixedly connected to the bottom of the detection module. A first motor is housed inside the first limiting seat. A second limiting seat is fixedly connected to the bottom of the output shaft of the first motor. A second motor is housed inside the second limiting seat. A visual monitoring instrument and an infrared thermal imaging monitoring instrument are fixedly connected to the output shaft of the second motor. In this rail-mounted inspection robot, ultrasonic sensing prevents collisions with obstacles. The electric telescopic rod, the first motor, and the second motor adjust the robot's detection position and angle.
[0004] However, the aforementioned rail-mounted inspection robot still has the following problems:
[0005] When inspecting areas with high dust, particulate matter, or oil, suspended particles in the air can easily adhere to the lens surfaces of the visible light camera and infrared thermal imager of the rail-mounted inspection robot. Due to the lack of effective lens protection, contaminants can directly adhere to the optical lens, which not only increases the risk of physical contamination on the lens surface, but may also cause damage to the lens coating, surface scratches, or even permanent stains due to the corrosiveness of the contaminants or long-term adhesion, thus affecting the lifespan of the lens. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a rail-mounted inspection robot with lens protection function, which can protect lenses in harsh environments such as high dust, powder, and oil stains.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a rail-mounted inspection robot with lens protection function, comprising a rail-mounted inspection robot body and a camera installed at its bottom, rotating columns fixedly connected to both sides of the camera, rotating plates rotatably connected to the outer walls of the two rotating columns, a connecting frame fixedly connected between the ends of the two rotating plates away from the rotating columns, two lens covers fixedly connected to the surface of the connecting frame, the lens covers corresponding to the camera position, a light-transmitting sheet fixedly connected inside each lens cover, a rotating component connected to one side of the camera, and a sealing component connected between the lens cover and the camera.
[0008] Furthermore, the rotating assembly includes a fixed frame, a motor, and a rotating block. The fixed frame is fixedly connected to one side of the camera, and the motor is fixedly connected inside the fixed frame. The rotating block is fixedly connected to one side of one of the rotating plates. The output shaft of the motor penetrates the fixed frame, and the side wall of the rotating block has a mounting groove corresponding to the position of the output shaft.
[0009] Furthermore, the sealing assembly includes a pressure spring, a positioning ring, and a sealing strip. A pressure spring is fixedly connected to the inside of each lens cover. A positioning ring is fixedly connected to the end of each pressure spring near the camera. A sealing strip is fixedly connected to the inner and outer sides of each positioning ring. The other end of the sealing strip is fixedly connected to the back of the lens cover near the camera. The pressure spring is located between the two sealing strips.
[0010] Furthermore, a wear-resistant sleeve is fitted on the outer wall of the positioning ring, and the wear-resistant sleeve abuts against the sealing strip at the connection point on the outer wall of the positioning ring, and the wear-resistant sleeve fits against the surface of the camera.
[0011] Furthermore, a buffer ring is fixedly connected inside the wear-resistant sleeve, and the buffer ring is located between the positioning ring and the camera.
[0012] Furthermore, the outer edge of the lens cover protrudes beyond the surface of the connecting frame.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This invention, through a mechanically movable protective structure, enables the lens to switch freely between active protection under harsh working conditions and efficient observation under normal working conditions. This significantly improves the durability of the camera and the environmental adaptability of the inspection robot, reduces the frequency of equipment maintenance and operating costs, extends the service life of the lens, and ensures the long-term stable and reliable operation of the inspection system. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0016] Figure 2 This is a schematic diagram of a three-dimensional disassembled structure of another embodiment of the present invention;
[0017] Figure 3 This is a three-dimensional disassembled cross-sectional structural diagram of the connecting frame, mirror cover, and fixing frame of this utility model;
[0018] Figure 4 This is a three-dimensional sectional view of the connecting frame, mirror cover, and pressure spring of this utility model.
[0019] Figure 5 This is a three-dimensional cross-sectional structural diagram of the pressure spring, sealing strip, and wear-resistant sleeve of this utility model.
[0020] In the diagram: 1. Main body of the rail-mounted inspection robot; 2. Camera; 3. Rotating column; 4. Rotating plate; 5. Connecting frame; 6. Mirror cover; 7. Light-transmitting sheet; 8. Fixing frame; 9. Motor; 10. Rotating block; 11. Mounting slot; 12. Pressure spring; 13. Positioning ring; 14. Sealing strip; 15. Wear-resistant sleeve; 16. Buffer ring. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] like Figures 1 to 5 As shown, a rail-mounted inspection robot with lens protection function includes a main body 1 and a camera 2 installed at its bottom. Rotating columns 3 are fixedly connected to both sides of the camera 2. Rotating plates 4 are rotatably connected to the outer walls of the two rotating columns 3. A connecting frame 5 is fixedly connected between the ends of the two rotating plates 4 away from the rotating columns 3. Two lens covers 6 are fixedly connected to the surface of the connecting frame 5. The lens covers 6 correspond to the positions of the camera 2. A light-transmitting sheet 7 is fixedly connected inside each lens cover 6. A rotating component is connected to one side of the camera 2. A sealing component is connected between the lens cover 6 and the camera 2.
[0023] like Figure 1 As shown, the rail-mounted inspection robot with lens protection function in this utility model is structurally similar to existing rail-mounted inspection robots, such as the rail-mounted inspection robot disclosed in patent announcement number CN220575941U. The main improvement of this utility model is that it can protect the lens in harsh environments such as high dust, dirt, and oil stains. Figures 1 to 5As shown, in the present invention, a rail-mounted inspection robot with lens protection function is used such that when the main body 1 of the rail-mounted inspection robot needs to enter a harsh environment with high dust, powder, oil, etc., the technician uses the controller to activate the rotating component. The rotating component will drive the rotating plate 4 to rotate counterclockwise around the rotating column 3, thereby aligning the light-transmitting sheet 7 with the lenses of the visible light camera and infrared thermal imager on the camera 2. Then, the sealing component will seal the gap between the light-transmitting sheet 7 and the lens, and then the robot can enter the harsh environment to operate. At this time, the lens of the camera 2 is completely isolated and protected by the light-transmitting sheet 7. External dust, powder, oil and other pollutants cannot directly adhere to the surface of the lens of the camera 2, effectively avoiding the risk of lens contamination, scratches and chemical corrosion. When the robot completes the inspection of the harsh environment area and moves to a clean area or returns to the docking point, the technician uses the controller to control the rotating component to drive in the opposite direction, driving the rotating plate 4 to rotate clockwise, so that the lens cover 6 and the light-transmitting sheet 7 move away from the front of the camera 2.
[0024] It is worth noting that the above-mentioned control method for the rotating component can be implemented by programming the controller to achieve automatic control. Since this is an existing mature technology, it will not be elaborated here.
[0025] Through a mechanically movable protective structure, the lens can be freely switched between active protection under harsh working conditions and efficient observation under normal working conditions. This significantly improves the durability of camera 2 and the environmental adaptability of the inspection robot, reduces the frequency of equipment maintenance and operation and maintenance costs, extends the service life of the lens, and ensures the long-term stable and reliable operation of the inspection system.
[0026] like Figures 2 to 4 As shown, the rotating assembly includes a fixed frame 8, a motor 9 and a rotating block 10. The fixed frame 8 is fixedly connected to one side of the camera 2, and the motor 9 is fixedly connected inside the fixed frame 8. The rotating block 10 is fixedly connected to one side of one of the rotating plates 4. The output shaft of the motor 9 penetrates the fixed frame 8, and the side wall of the rotating block 10 is provided with a mounting groove 11 corresponding to the position of the output shaft.
[0027] Specifically, through the precise control of motor 9, the protective structure can be opened and closed quickly, ensuring that the lens can be protected or released in a timely and effective manner before or after entering or leaving harsh environments such as high dust, powder, and oil.
[0028] like Figures 2 to 5As shown, the sealing assembly includes a pressure spring 12, a positioning ring 13, and a sealing strip 14. A pressure spring 12 is fixedly connected to the inside of each lens cover 6. A positioning ring 13 is fixedly connected to one end of each pressure spring 12 near the camera 2. A sealing strip 14 is fixedly connected to the inside and outside of each positioning ring 13. The other end of the sealing strip 14 is fixedly connected to the back of the lens cover 6 near the camera 2. The pressure spring 12 is located between the two sealing strips 14.
[0029] Specifically, after the light-transmitting sheet 7 is aligned with the lens, the positioning ring 13 is pressed tightly against the surface of the camera 2 under the action of the pressure spring 12, and the sealing strip 14 is unfolded at the same time. At this time, the sealing strip 14 will seal and protect the lens. This design also has a certain dynamic adaptability. Even if the inspection robot encounters vibration or slight positional displacement during operation, the sealing strip 14 can still remain sealed under the action of the pressure spring 12, maintaining a good sealing state and preventing external contaminants from entering. The sealing strip 14 is made of elastic material (such as silicone, rubber, etc.) and can deform and stretch.
[0030] It is worth noting that the pressure spring 12 is made of stainless steel with a thicker wire diameter. This not only prevents the pressure spring 12 from becoming skewed, but also gives the pressure spring 12 the ability to self-correct when it encounters slight skew.
[0031] like Figures 2 to 5 As shown, a wear-resistant sleeve 15 is fitted on the outer wall of the positioning ring 13. The wear-resistant sleeve 15 and the sealing strip 14 abut against each other at the connection point on the outer wall of the positioning ring 13. The wear-resistant sleeve 15 is in contact with the surface of the camera 2.
[0032] Specifically, since the distance from the axis of the rotating column 3 to the lower edge of the camera 2 is greater than the distance to the lens, friction is bound to occur during rotation. The lower edge of the camera 2 is rounded, and the wear-resistant sleeve 15 can reduce frictional damage between the positioning ring 13 and the outer shell of the camera 2, preventing scratches or structural deformation caused by long-term friction, thereby ensuring the long-term stable operation of the sealing system. At the same time, during the rotation of the rotating plate 4, the pressure spring 12 will be compressed and contracted, and the wear-resistant sleeve 15 can slide smoothly along the rounded surface during the contact process, effectively weakening rigid collisions and point contact friction to achieve smooth fit, which can also reduce wear.
[0033] The camera 2 has a protruding ring on its exterior that corresponds to the position of the lens. The protrusion of the protruding ring is sufficient to avoid contact and friction with the lens, and the outer diameter of the protruding ring is smaller than the inner diameter of the wear-resistant sleeve 15.
[0034] like Figure 4 and Figure 5 As shown, a buffer ring 16 is fixedly connected inside the wear-resistant sleeve 15, and the buffer ring 16 is located between the positioning ring 13 and the camera 2.
[0035] Specifically, the buffer ring 16 is made of materials such as silicone, rubber or sponge. The main function of the buffer ring 16 is to provide an additional buffer protection layer between the positioning ring 13 and the surface of the camera 2. When the positioning ring 13 moves toward the camera 2 and presses against it under the action of the pressure spring 12, the buffer ring 16 can absorb part of the impact force and avoid mechanical damage to the camera 2 that may be caused by hard contact.
[0036] like Figures 1 to 4 As shown, the outer edge of the mirror cover 6 protrudes from the surface of the connecting bracket 5.
[0037] Specifically, the protruding design of the lens cover 6 can effectively prevent halo or glare caused by direct light source shining on the light-transmitting film 7, thus ensuring the imaging effect.
[0038] 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.
Claims
1. A rail-mounted inspection robot with lens protection function, comprising a rail-mounted inspection robot body (1) and a camera (2) mounted on its bottom, characterized in that: The camera (2) is fixedly connected to two rotating columns (3) on both sides. Rotating plates (4) are rotatably connected to the outer walls of the two rotating columns (3). A connecting frame (5) is fixedly connected between the ends of the two rotating plates (4) away from the rotating columns (3). Two lens covers (6) are fixedly connected to the surface of the connecting frame (5). The lens covers (6) correspond to the position of the camera (2). A light-transmitting sheet (7) is fixedly connected inside each lens cover (6). A rotating component is connected to one side of the camera (2). A sealing component is connected between the lens cover (6) and the camera (2).
2. The rail-mounted inspection robot with lens protection function according to claim 1, characterized in that: The rotating assembly includes a fixed frame (8), a motor (9) and a rotating block (10). The fixed frame (8) is fixedly connected to one side of the camera (2), and the motor (9) is fixedly connected inside the fixed frame (8). The rotating block (10) is fixedly connected to one side of one of the rotating plates (4). The output shaft of the motor (9) penetrates the fixed frame (8), and the side wall of the rotating block (10) is provided with a mounting groove (11) corresponding to the position of the output shaft.
3. A rail-mounted inspection robot with lens protection function according to claim 1 or 2, characterized in that: The sealing assembly includes a pressure spring (12), a positioning ring (13), and a sealing strip (14). A pressure spring (12) is fixedly connected to the inside of each lens cover (6). A positioning ring (13) is fixedly connected to one end of each pressure spring (12) near the camera (2). A sealing strip (14) is fixedly connected to the inside and outside of each positioning ring (13). The other end of the sealing strip (14) is fixedly connected to the back of the lens cover (6) near the camera (2). The pressure spring (12) is located between the two sealing strips (14).
4. A rail-mounted inspection robot with lens protection function according to claim 3, characterized in that: The outer wall of the positioning ring (13) is fitted with a wear-resistant sleeve (15). The wear-resistant sleeve (15) and the sealing strip (14) abut against each other at the connection point on the outer wall of the positioning ring (13). The wear-resistant sleeve (15) is in contact with the surface of the camera (2).
5. A rail-mounted inspection robot with lens protection function according to claim 4, characterized in that: A buffer ring (16) is fixedly connected inside the wear-resistant sleeve (15), and the buffer ring (16) is located between the positioning ring (13) and the camera (2).
6. A rail-mounted inspection robot with lens protection function according to claim 1, 2, 4 or 5, characterized in that: The outer edge of the mirror cover (6) protrudes from the surface of the connecting frame (5).
7. A rail-mounted inspection robot with lens protection function according to claim 3, characterized in that: The outer edge of the mirror cover (6) protrudes from the surface of the connecting frame (5).
Citation Information
Patent Citations
Hanging rail type inspection robot
CN220575941U
