Coaxial regression reflection type photoelectric sensor
By adopting a frame and cleaning roller structure in the photoelectric sensor and using mechanical drive to rotate the cleaning roller, the high cost problem caused by motor driving in the prior art is solved, and efficient cleaning effect and low-cost operation are achieved.
Patent Information
- Application Number
- CN202421926133.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-09
AI Technical Summary
Cleaning components of existing reflective photoelectric sensors require motor drive, resulting in high manufacturing costs and energy consumption, affecting the sensitivity and accuracy of the sensor.
A coaxial regression reflective photoelectric sensor is designed, using a frame and cleaning roller structure, and the cleaning roller rotates by mechanically driving the cleaning roller to achieve relative sliding between the cleaning roller and the mirror surface by meshing with rails and gears, avoiding motor driving.
Improves cleaning results, reduces manufacturing and usage costs while maintaining sensor sensitivity and accuracy.
Smart Images
Figure CN223123226U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sensors, and particularly relates to a coaxial retroreflective photoelectric sensor. Background Art
[0002] A reflective photoelectric sensor is a photoelectric sensor that installs a transmitter and a receiver in the same device, and installs a reflector in front of it. It uses the reflection principle to complete the photoelectric control function and can be used to detect the presence of approaching objects.
[0003] The reflective photoelectric sensor works by receiving the reflected light. When the reflected light is affected, it will affect the sensitivity and accuracy of the sensor. The dust on the reflector is one of the influencing factors. Therefore, a cleaning component is usually installed on the reflector. The commonly used cleaning component is a cleaning roller component. When in use, the cleaning roller is pushed forward. If the cleaning effect needs to be improved, a motor is required to drive the cleaning roller to rotate, so that a large relative sliding speed is generated between the cleaning roller and the reflector. This method not only requires a high manufacturing cost, but also requires electric drive during use and consumes energy. Content of the Utility Model
[0004] The purpose of the utility model is to provide a coaxial retroreflective photoelectric sensor, which does not require a motor and electric drive during use, saves manufacturing cost and use cost, and solves the problems proposed in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A coaxial retroreflective photoelectric sensor, including a retroreflective component and a sensor body. The retroreflective component and the sensor body are arranged corresponding to each other. Track components are arranged at the top and bottom of the retroreflective component. A cleaning component for cleaning the surface of the retroreflective component is arranged between the two track components. The cleaning component includes a frame and a cleaning roller. The cleaning roller is rotatably connected inside the frame. L-shaped plates are fixedly connected to both ends of the frame. A driving component for driving the cleaning roller is arranged at the top of one of the L-shaped plates.
[0006] Further, the retroreflective component includes a reflector and a protection frame. The reflector is fixedly connected inside the protection frame. Mounting plates are symmetrically arranged on one side of the protection frame.
[0007] Further, a through groove is arranged on one side of the L-shaped plate.
[0008] Further, the track component includes a track body. A load trolley is rotatably connected inside the track body. One ends of the two L-shaped plates are respectively fixedly connected to one side of the two load trolleys.
[0009] Furthermore, one side of the track body is fixedly connected with connecting plates distributed at equal intervals, and one end of the connecting plate is fixedly connected with one side of the protection frame.
[0010] Furthermore, the driving assembly includes a U-shaped plate. The U-shaped plate is fixedly connected to the top end of one of the L-shaped plates. Two mutually meshing gears are rotatably connected inside the U-shaped plate, and the top end of the cleaning roller is fixedly connected to the bottom end of one of the gears through a shaft.
[0011] Furthermore, a rack is fixedly connected to one side of one of the track bodies, and the rack is meshed with the other gear.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: During the process of pushing the frame to slide forward, the driving assembly drives the cleaning roller to rotate while moving with the frame, improving the relative sliding speed between the cleaning roller and the surface of the mirror, thereby improving the cleaning effect. When in use, no motor and electric drive are required, saving manufacturing costs and usage costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0014] Figure 2 is a three-dimensional structural schematic diagram of the cleaning assembly of the present utility model;
[0015] Figure 3 is a right view of the present utility model.
[0016] In the drawings, the list of components represented by each reference numeral is as follows:
[0017] 1, retroreflective assembly; 11, mirror; 12, protection frame; 13, mounting plate; 2, sensor body; 3, cleaning assembly; 31, frame; 32, cleaning roller; 33, L-shaped plate; 34, through groove; 4, track assembly; 41, track body; 42, load trolley; 43, connecting plate; 5, driving assembly; 51, U-shaped plate; 52, gear; 53, rack. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the specific protection scope claimed by the present utility model.
[0019] Such as Figure 1 and 2As shown in the figure, a coaxial retroreflective photoelectric sensor includes a retroreflective component 1 and a sensor body 2. The retroreflective component 1 and the sensor body 2 are arranged correspondingly. Track components 4 are provided at both the top and bottom of the retroreflective component 1. A cleaning component 3 for cleaning the surface of the retroreflective component 1 is arranged between the two track components 4. The cleaning component 3 includes a frame 31 and a cleaning roller 32. The cleaning roller 32 is rotatably connected inside the frame 31. L-shaped plates 33 are fixedly connected to both ends of the frame 31. A through groove 34 is arranged on one side of the L-shaped plate 33. A driving component 5 for driving the cleaning roller 32 is arranged at the top of one of the L-shaped plates 33.
[0020] According to the above structure, during use, light is emitted by the sensor body 2 and irradiates onto the retroreflective component 1. The light reflected by the retroreflective component 1 is received by the sensor body 2. When an object passes between the retroreflective component 1 and the sensor body 2, the light is blocked and the sensor body 2 cannot receive the light. At this time, the sensor body 2 will send a signal to an external processor, so as to detect whether an object passes between the retroreflective component 1 and the sensor body 2. During the use process, if dust accumulates on the surface of the retroreflective component 1, the cleaning roller 32 is used to clean the surface of the retroreflective component 1 by sliding the frame 31. During the sliding process, the driving component 5 drives the cleaning roller 32 to rotate, increasing the relative sliding speed between it and the retroreflective component 1, thereby improving the cleaning effect.
[0021] As Figure 1 shown in the figure, the retroreflective component 1 includes a reflector 11 and a protective frame 12. The reflector 11 is fixedly connected inside the protective frame 12. Mounting plates 13 are symmetrically arranged on one side of the protective frame 12.
[0022] According to the above structure, the retroreflective component 1 is installed at the corresponding position through the mounting plates 13, and the protective frame 12 is used to support and protect the reflector 11.
[0023] As Figure 1 and 2 shown in the figure, the track component 4 includes a track body 41. A load trolley 42 is rotatably connected inside the track body 41. One end of each of the two L-shaped plates 33 is fixedly connected to one side of the two load trolleys 42 respectively. Connecting plates 43 are fixedly connected to one side of the track body 41 at equal intervals. One end of the connecting plate 43 is fixedly connected to one side of the protective frame 12.
[0024] According to the above structure, when the frame 31 is slid, the load trolley 42 rolls inside the track body 41, improving the stability and smoothness of the sliding of the frame 31.
[0025] As Figure 1 and 3As shown in the figure, the driving component 5 includes a U-shaped plate 51. The U-shaped plate 51 is fixedly connected to the top end of one of the L-shaped plates 33. Two meshing gears 52 are rotatably connected inside the U-shaped plate 51. The top end of the cleaning roller 32 is fixedly connected to the bottom end of one of the gears 52 through a shaft. One side of one of the track bodies 41 is fixedly connected with a rack 53, and the rack 53 is meshed with the other gear 52.
[0026] According to the above structure, when the frame 31 slides to the left, the U-shaped plate 51 moves accordingly. Since one of the gears 52 inside the U-shaped plate 51 is meshed with the rack 53, when the U-shaped plate 51 moves to the left, the gear 52 meshed with the rack 53 rotates clockwise, thereby driving the other gear 52 to rotate counterclockwise, and further driving the cleaning roller 32 to rotate counterclockwise. The cleaning roller 32 rotates counterclockwise and moves to the left, and a relatively fast relative movement occurs between it and the surface of the mirror 11, improving the cleaning effect on the surface of the mirror 11. Similarly, when the frame 31 moves to the right, the cleaning roller 32 moves to the right and rotates clockwise, and the cleaning effect can also be improved.
[0027] The working principle of the present utility model is as follows: During use, the sensor body 2 emits light to irradiate the retroreflective component 1, and the light reflected by the retroreflective component 1 is received by the sensor body 2. When an object passes between the retroreflective component 1 and the sensor body 2, the light is blocked, and the sensor body 2 cannot receive the light. At this time, the sensor body 2 will send a signal to an external processor, so as to detect whether an object passes between the retroreflective component 1 and the sensor body 2. During the use process, if dust accumulates on the surface of the retroreflective component 1, the cleaning roller 32 is used to clean the surface of the retroreflective component 1 by sliding the frame 31. When the frame 31 slides to the left, the U-shaped plate 51 moves accordingly. Since one of the gears 52 inside the U-shaped plate 51 is meshed with the rack 53, when the U-shaped plate 51 moves to the left, the gear 52 meshed with the rack 53 rotates clockwise, thereby driving the other gear 52 to rotate counterclockwise, and further driving the cleaning roller 32 to rotate counterclockwise. The cleaning roller 32 rotates counterclockwise and moves to the left, and a relatively fast relative movement occurs between it and the surface of the mirror 11, improving the cleaning effect on the surface of the mirror 11. Similarly, when the frame 31 moves to the right, the cleaning roller 32 moves to the right and rotates clockwise, and the cleaning effect can also be improved. When the frame 31 slides, the load trolley 42 rolls inside the track body 41, improving the stability and smoothness of the sliding of the frame 31.
[0028] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, without special instructions and limitations, are implemented according to the conventional means in the art.
Claims
1. A coaxial retroreflective photoelectric sensor, comprising a retroreflective component (1) and a sensor body (2), characterized in that: The retroreflective component (1) and the sensor body (2) are arranged corresponding to each other. Rail components (4) are provided at both the top and bottom of the retroreflective component (1). A cleaning component (3) for cleaning the surface of the retroreflective component (1) is arranged between the two rail components (4). The cleaning component (3) includes a frame (31) and a cleaning roller (32). The cleaning roller (32) is rotatably connected inside the frame (31). L-shaped plates (33) are fixedly connected to both ends of the frame (31). A driving component (5) for driving the cleaning roller (32) is arranged at the top of one of the L-shaped plates (33).
2. The coaxial retroreflective photoelectric sensor according to claim 1, wherein: The retroreflective component (1) includes a reflector (11) and a protection frame (12). The reflector (11) is fixedly connected inside the protection frame (12). Mounting plates (13) are symmetrically arranged on one side of the protection frame (12).
3. The coaxial retroreflective photoelectric sensor according to claim 2, characterized in that: A through groove (34) is arranged on one side of the L-shaped plate (33).
4. The coaxial retroreflective photoelectric sensor according to claim 3, characterized in that: The rail component (4) includes a rail body (41). A load trolley (42) is rotatably connected inside the rail body (41). One ends of the two L-shaped plates (33) are respectively fixedly connected to one sides of the two load trolleys (42).
5. The coaxial retroreflective photoelectric sensor according to claim 4, characterized in that: A connecting plate (43) evenly distributed is fixedly connected to one side of the rail body (41). One end of the connecting plate (43) is fixedly connected to one side of the protection frame (12).
6. The coaxial retroreflective photoelectric sensor according to claim 5, characterized in that: The driving component (5) includes a U-shaped plate (51). The U-shaped plate (51) is fixedly connected to the top of one of the L-shaped plates (33). Two meshing gears (52) are rotatably connected inside the U-shaped plate (51). The top of the cleaning roller (32) is fixedly connected to the bottom of one of the gears (52) through a shaft.
7. The coaxial retroreflective photoelectric sensor according to claim 6, characterized in that: A rack (53) is fixedly connected to one side of one of the rail bodies (41). The rack (53) is meshed with the other gear (52).