Diffuse reflection light curtain protective cover detection device

Abstract

The utility model discloses a diffuse reflection light curtain protective cover detection device, which comprises a fixed frame fixed on the side surface of a light curtain protective cover body, the fixing frame is of a U-shaped structure, an image acquisition mechanism is arranged on the inner side of the fixing frame, and the image acquisition mechanism comprises a screw rod, a servo motor, a moving block and a camera. According to the diffuse reflection light curtain protective cover detection device, by arranging the movable image acquisition mechanism, all positions of a light curtain protective cover body can be photographed and scanned; a scanned image signal is transmitted to the image processor to be processed and analyzed, the image processor transmits the signal to the controller, the controller transmits the signal to the servo motor and the air pump, the cleaning mechanism is driven by the image acquisition mechanism to move up and down in a reciprocating mode so as to clean the surface of the light curtain protective cover body, and the trouble of manual cleaning is avoided. The labor intensity of workers is reduced, and the normal use of the diffuse reflection light curtain is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of detection technology, and in particular relates to a detection device for a diffuse reflection light curtain protective cover. Background Technology

[0002] A diffuse reflection light curtain is a type of light curtain in which the light-emitting device and the light-receiving device are on the same side. The light-emitting device emits a beam of light, which is reflected back when it encounters an object, and the light-receiving device receives and processes the light. It is widely used in the field of photoelectric switches. In order to improve the protection effect of diffuse reflection light curtains, protective covers are currently used for protection.

[0003] However, during use, the light transmittance of the diffuse reflection light curtain is easily reduced due to environmental factors such as dust or water vapor, resulting in a decrease in the intensity of reflected light. This requires manual cleaning, which is not only troublesome and labor-intensive, but also affects the normal use of the diffuse reflection light curtain. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a detection device for diffuse reflection light curtain protective covers. By setting up a movable image acquisition mechanism, it can take pictures and scan various positions of the light curtain protective cover body. The scanned image signals are transmitted to an image processor for processing and analysis. When dust or moisture is detected on the light curtain protective cover body, the image processor sends a signal to the controller, which activates the alarm to alert the staff. At the same time, the controller sends a signal to the servo motor and air pump, which drive the cleaning mechanism to move up and down reciprocally through the image acquisition mechanism to clean the surface of the light curtain protective cover body. This avoids the trouble of manual cleaning, reduces the labor intensity, and ensures the normal use of the diffuse reflection light curtain.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A detection device for a diffuse reflection light curtain protective cover includes a fixed frame fixed to the side of the light curtain protective cover body; the fixed frame has a "U" shape structure, and an image acquisition mechanism is provided on the inner side of the fixed frame. The image acquisition mechanism includes a screw, a servo motor, a moving block, and a camera. The screw is rotatably connected to the inner side of the horizontal end of the fixed frame, and a servo motor connected to the screw is mounted on the upper side of the fixed frame. A moving block is screwed onto the screw and slidably connected to the inner side of the vertical end of the fixed frame. A camera is mounted on the left side of the moving block. From top to bottom, an image processor, a controller, and an alarm are arranged on the outer side of the vertical end of the fixed frame. The output end of the camera is electrically connected to the input end of the image processor, the output end of the image processor is electrically connected to the output end of the controller, and the output end of the controller is electrically connected to the input end of the alarm and the servo motor, respectively. A mounting bracket is provided on the moving block, and a cleaning mechanism is provided on the mounting bracket. The cleaning mechanism includes... The system comprises an air pump, an air inlet pipe, a mounting plate, a jet nozzle, and an air delivery pipe. The mounting frame has an "L"-shaped structure. The air pump is mounted on the upper horizontal side of the mounting frame, and an air inlet pipe is installed at the air pump's air inlet. A mounting plate is fixed to the horizontal end of the mounting frame, and a jet nozzle is mounted on the mounting plate. The air pump is connected to the jet nozzle via the air delivery pipe. By setting up a movable image acquisition mechanism, various positions of the light curtain protective cover can be photographed and scanned. The scanned image signals are transmitted to an image processor for processing and analysis. When dust or moisture is detected on the light curtain protective cover, the image processor sends a signal to the controller. The controller activates the alarm to alert the staff. Simultaneously, the controller sends a signal to the servo motor and air pump, which drive the cleaning mechanism to move up and down reciprocally through the image acquisition mechanism to clean the surface of the light curtain protective cover. This avoids the trouble of manual cleaning, reduces labor intensity, and ensures the normal use of the diffuse reflection light curtain.

[0007] Furthermore, there are two fixing plates, which are located on the upper and lower sides of the left end of the mounting frame, and both fixing plates are inclined. By setting two inclined fixing plates, dust and water vapor in opposite directions can be blown away at the same time, ensuring the cleaning effect. Compared with the scraper cleaning method, it will not scratch the light curtain protective cover body and improve its service life.

[0008] Compared with existing technologies, the advantages of this utility model are as follows: By setting a movable image acquisition mechanism, various positions of the light curtain protective cover can be photographed and scanned. The scanned image signals are transmitted to the image processor for processing and analysis. When dust or moisture is detected on the light curtain protective cover, the image processor sends a signal to the controller, which then activates the alarm to alert the staff. Simultaneously, the controller sends a signal to the servo motor and air pump, which drive the cleaning mechanism to move up and down repeatedly through the image acquisition mechanism to clean the surface of the light curtain protective cover. This avoids the hassle of manual cleaning, reduces labor intensity, and ensures the normal use of the diffuse reflection light curtain. By setting two inclined fixed plates, dust and moisture in opposite directions can be blown away simultaneously, ensuring a good cleaning effect. Compared with scraper-type cleaning methods, this method does not scratch the light curtain protective cover and extends its service life. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a partially enlarged structural diagram of part A of this utility model.

[0011] In the diagram: 1. Light curtain protective cover body; 2. Image acquisition mechanism; 21. Screw; 22. Servo motor; 23. Moving block; 24. Camera; 3. Mounting bracket; 4. Cleaning mechanism; 41. Air pump; 42. Air inlet pipe; 43. Fixing plate; 44. Jet nozzle; 45. Air supply pipe; 5. Fixing frame; 6. Image processor; 7. Controller; 8. Alarm. Detailed Implementation

[0012] 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, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0013] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0014] See appendix Figure 1-2As shown, a diffuse reflection light curtain protective cover detection device includes a fixing frame 5 fixed to the side of the light curtain protective cover body 1; the fixing frame 5 has a "U" shaped structure, and an image acquisition mechanism 5 is provided on the inner side of the fixing frame 5. The image acquisition mechanism 5 includes a screw 21, a servo motor 22, a moving block 23, and a camera 24. The screw 21 is rotatably connected to the inner side of the horizontal end of the fixing frame 5, and the servo motor 22 connected to the screw 21 is installed on the upper side of the fixing frame 5. The moving block 23 is screwed onto the screw 21 and is slidably connected to the fixing frame 24. A camera 24 is installed on the inner side of the vertical end of the fixed frame 5 and on the left side of the movable block 23. From top to bottom, an image processor 6, a controller 7, and an alarm 8 are arranged on the outer side of the vertical end of the fixed frame 5. The output of the camera 24 is electrically connected to the input of the image processor 6, and the output of the image processor 6 is electrically connected to the output of the controller 7. The output of the controller 7 is electrically connected to the input of the alarm 8 and the servo motor 22, respectively. A mounting bracket 3 is provided on the movable block 23, and a cleaning mechanism 4 is provided on the mounting bracket 3. The cleaning mechanism 4 includes an air pump 41. The mounting frame 3 has an "L"-shaped structure, consisting of an air inlet pipe 42, a fixing plate 43, a jet nozzle 44, and an air supply pipe 45. An air pump 41 is mounted on the upper horizontal side of the mounting frame 3, and an air inlet pipe 42 is installed at the air inlet of the air pump 41. A fixing plate 43 is fixed to the horizontal end of the mounting frame 3, and a jet nozzle 44 is mounted on the fixing plate 43. The air pump 41 is connected to the jet nozzle 44 via the air supply pipe 45. By setting a movable image acquisition mechanism 2, it is possible to photograph and scan various positions of the light curtain protective cover body 1. The scanned image signal is then transmitted. The image processor 6 processes and analyzes the data. When dust or moisture is detected on the light curtain protective cover body 1, the image processor 6 sends a signal to the controller 7. The controller 7 controls the alarm 8 to sound an alarm to alert the staff. At the same time, the controller 7 sends a signal to the servo motor 22 and the air pump 41, which drive the cleaning mechanism 4 to move up and down repeatedly through the image acquisition mechanism 2 to clean the surface of the light curtain protective cover body 1. This avoids the trouble of manual cleaning, reduces the intensity of manual labor, and ensures the normal use of the diffuse reflection light curtain.

[0015] There are two fixing plates 43, which are located on the upper and lower sides of the left end of the mounting bracket 3, respectively. Both fixing plates 43 are set at an angle. By setting two angled fixing plates 43, dust and water vapor in opposite directions can be blown away at the same time, ensuring the cleaning effect. Compared with the scraper cleaning method, it will not scratch the light curtain protective cover body 1 and improve the service life.

[0016] Working principle: The servo motor 22 drives the moving block 23 and the camera 24 to move up or down simultaneously via the screw 21. The camera 24 scans and photographs various positions of the light curtain protective cover 1. The scanned image signals are transmitted to the image processor 6 for processing and analysis. When dust or moisture is detected on the light curtain protective cover 1, the image processor 6 sends a signal to the controller 7. The controller 7 activates the alarm 8 to alert the staff. At the same time, the controller 7 sends a signal to the servo motor 22 and the air pump 41. The image acquisition mechanism 2 drives the cleaning mechanism 4 to move up and down reciprocally to clean the surface of the light curtain protective cover 1. This avoids the trouble of manual cleaning, reduces the intensity of manual labor, and ensures the normal use of the diffuse reflection light curtain. By setting two inclined fixed plates 43, dust and moisture in opposite directions can be blown away simultaneously, ensuring the cleaning effect. Compared with the scraper cleaning method, it will not scratch the light curtain protective cover 1 and improve its service life.

[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0018] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A diffuse reflective light curtain shield detection device comprising a fixed frame fixed to the side of a light curtain shield body, characterized in that: The mounting frame has a U-shaped structure. An image acquisition mechanism is located on the inner side of the mounting frame. This mechanism includes a screw, a servo motor, a moving block, and a camera. The screw is rotatably connected to the inner side of the horizontal end of the mounting frame. A servo motor connected to the screw is mounted on the upper side of the mounting frame. A moving block is screwed onto the screw and slidably connected to the inner side of the vertical end of the mounting frame. A camera is mounted on the left side of the moving block. From top to bottom, an image processor, a controller, and an alarm are sequentially arranged on the outer side of the vertical end of the mounting frame. The output of the camera is electrically connected to the image processor. The input terminal of the image processor is electrically connected to the output terminal of the controller. The output terminal of the controller is electrically connected to the input terminals of the alarm and the servo motor respectively. The moving block is provided with a mounting frame. The mounting frame is provided with a cleaning mechanism. The cleaning mechanism includes an air pump, an air inlet pipe, a fixing plate, a jet nozzle, and an air supply pipe. The mounting frame has an "L" shaped structure. An air pump is installed on the upper side of the horizontal end of the mounting frame. An air inlet pipe is installed at the air inlet of the air pump. A fixing plate is fixed on the horizontal end of the mounting frame. A jet nozzle is installed on the fixing plate. The air pump is connected to the jet nozzle through the air supply pipe.

2. A diffuse reflective light curtain guard detection apparatus according to claim 1, wherein: The mounting plate is provided in two parts, which are located on the upper and lower sides of the left end of the mounting frame, and both mounting plates are inclined.

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