Safety grating capable of preventing interference light

Abstract

The utility model relates to an anti-interference light safety grating, and relates to the technical field of safety gratings, the anti-interference light safety grating comprises a safety grating body, one side of the safety grating body is provided with a protective shell, the protective shell is provided with an installation area and a shielding area, and the safety grating body is installed in the installation area; a shielding assembly is arranged on the side, close to the shielding area, of the protective shell and shields interference light. According to the invention, the light influence of the safety grating body caused by natural interference or other interference can be reduced, and the risk of false alarm or false alarm is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of safety gratings, and in particular to a safety grating for preventing interference light. Background Art

[0002] At present, the safety light curtain is a device used for industrial safety protection. It detects the entry of objects or people by emitting and receiving infrared beams, thereby realizing the safety monitoring of dangerous areas. It mainly consists of two parts: the transmitter and the receiver. The transmitter emits infrared beams and the receiver receives these beams. When an object or a person blocks the beam, the safety light curtain will immediately send a signal to stop the mechanical equipment or trigger an alarm to prevent accidents.

[0003] The existing Chinese patent with publication number CN220817403U discloses a safety grating device, including a vehicle body, a carriage is provided on the back of the vehicle body, vertical boxes are fixedly connected to the two ends of the top of the inner wall of the carriage, the inner walls of the two vertical boxes on one side of the inner wall of the carriage are rotatably connected to the lead screws through bearings, the surfaces of the two lead screws are threaded with sleeves, the surfaces of the two sleeves are fixedly connected to the fixed seats, a reduction motor is fixedly installed on the top of the vertical box, a plug-in strip is engaged with the inner wall of the fixed seat, the front of the plug-in strip is fixedly connected to the safety grating body, both sides of the inside of the fixed seat are provided with accommodating grooves, both ends of one side of the inner wall of the accommodating grooves are provided, and the inner walls of the two grooves are fixedly connected to springs.

[0004] In the related art, a safety grating is arranged on the top of the compartment of a construction site vehicle to prevent a human body or other living things from entering the working area and causing a safety accident.

[0005] With respect to the above-mentioned related technologies, the inventors believe that the outdoor environment is relatively complex, and the safety grating is easily affected by the light generated by nature or other interferences, thereby causing false alarms or misreporting. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a safety grating to prevent interference light, which solves the technical problem that the safety grating is easily affected by light generated by nature or other interferences, thereby generating false alarms or misreports.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A safety grating for preventing interference light comprises a safety grating body, a protective shell is arranged on one side of the safety grating body, an installation area and a shielding area are formed on the protective shell, and the safety grating body is installed in the installation area; a shielding component is arranged on the side of the protective shell close to the shielding area, and the shielding component shields interference light.

[0009] Through the above technical solution, the safety grating body is installed in the installation area of ​​the protective shell, and then the shielding component is installed in the shielding area of ​​the protective shell. During use, the shielding component shields the interference light in the environment, so that the safety grating body can only receive direct light, thereby reducing the impact of light generated by natural or other interference on the safety grating body, and reducing the risk of false alarm or misreporting.

[0010] Furthermore, the shielding assembly includes a light shielding sheet, a light shielding slot is provided on the protective shell, the light shielding sheet is located above the safety grating body, and the light shielding sheet is plugged into and matched with the light shielding slot.

[0011] Through the above technical solution, the shading sheet is inserted into the shading slot of the protective shell. The shading sheet can reduce the interference of ambient light on the safety grating, thereby preventing the safety grating body from being falsely triggered and improving the anti-interference ability of the safety grating body.

[0012] Furthermore, the protective shell is provided with shading plates on both sides of the shading sheet, and the shading plates on both sides extend to a side away from the protective shell, respectively. A light channel is formed between the two shading plates, and the light channel is connected to the installation area.

[0013] Through the above technical solution, the sunshade blocks the natural light on both sides of the protective shell, while the direct light will be sensed by the safety grating body through the light channel.

[0014] Furthermore, fins are provided on the sides of the two shading plates that are close to each other, and a plurality of fins are arranged at intervals on the corresponding shading plates.

[0015] Through the above technical solution, the fins are installed on the inner side of the shading plate, and the fins can reduce the refraction of stray light on the inner side of the shading plate.

[0016] Furthermore, the two shading plates are each formed with an extension portion, and the extension portions on both sides extend toward a side close to each other.

[0017] Through the above technical solution, the extension parts on both sides extend toward the sides close to each other, further reducing the natural light entering between the two shading plates.

[0018] Furthermore, the inner side of the shading plate is coated with a black coating, and the black coating is distributed on the shading plate and the surface of the fin.

[0019] Through the above technical solution, the black coating absorbs stray light refracted into between the two shading plates.

[0020] Furthermore, the protective shell is provided with an upper end cover and a lower end cover, and the upper end cover and the lower end cover are installed on the protective shell.

[0021] Through the above technical solution, the upper end cover and the lower end cover are arranged on the protective shell, thereby reducing the dust from entering the protective shell.

[0022] In summary, the present application includes at least one of the following beneficial technical effects of a safety grating for preventing interference light:

[0023] 1. When in use, install the safety grating body in the installation area of ​​the protective housing, and then install the shielding component in the shielding area of ​​the protective housing. During use, the shielding component shields the interfering light in the environment, so that the safety grating body can only receive direct light, thereby reducing the impact of the safety grating body on the light generated by natural or other interferences, and reducing the risk of false alarms or misreporting;

[0024] 2. The setting of shading plate and shading sheet can reduce the influence of stray light on the safety grating body;

[0025] 3. By setting up fins and black coating, stray light between the two shading plates can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a safety grating for preventing interference light provided in this embodiment;

[0027] Figure 2 is a schematic diagram of the expansion of the shading plate structure provided in this embodiment;

[0028] Figure 3 It is a cross-sectional view of the protective shell structure provided in this embodiment.

[0029] Figure numerals: 1. Safety grating body; 2. Protective shell; 21. Installation area; 22. Shielding area; 23. Installation slot; 24. Shading slot; 25. Upper end cover; 26. Lower end cover; 27. Installation slide; 3. Shielding assembly; 31. Shading plate; 311. Extension; 32. Light channel; 33. Shading sheet; 34. Sealing strip; 35. Sealing gasket; 36. Fin; 37. Black coating. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The embodiment of the present application discloses a safety grating for preventing interference light.

[0033] Reference Figure 1-Figure 2A safety grating for preventing interference light comprises a safety grating body 1 and a protective housing 2. The safety grating body 1 is mounted on the protective housing 2, and a shielding component 3 is arranged on the protective housing 2 to shield stray light. The shielding component 3 shields stray light so that the safety grating body 1 can receive direct light.

[0034] Reference Figure 3 An installation area 21 and a shielding area 22 are formed on the protective shell 2 . A mounting groove 23 is provided on one side of the protective shell 2 close to the mounting area 21 . The safety grating body 1 is inserted into the mounting groove 23 of the protective shell 2 .

[0035] Furthermore, the shielding assembly 3 includes a shading plate 31, which is located on both sides of the protective shell 2 close to the safety grating body 1, and the two shading plates 31 are arranged in parallel and spaced apart. In addition, a light channel 32 is formed between the two shading plates 31. When in use, direct light passes through the light channel 32 and is sensed by the safety grating body 1.

[0036] However, since the two shading plates 31 are open at one side away from the safety grating body 1 , a small amount of stray light still enters between the two shading plates 31 .

[0037] Therefore, a shading sheet 33 is provided in the protective shell 2, and the shading sheet 33 is located between the installation area 21 and the shielding area 22, and the protective shell 2 is provided with shading slots 24 on both sides of the safety grating body 1, and the shading sheet 33 is in the shape of a rectangular plate as a whole, and the shading sheet 33 covers the safety grating body 1, and both sides of the width direction of the shading sheet 33 are inserted into the shading slots 24 of the protective shell 2. When in use, the shading sheet 33 can reduce the interference of ambient light (such as sunlight, indoor lighting, etc.) on the safety grating body 1, thereby preventing the safety grating body 1 from being triggered by mistake. In addition, the shading sheet 33 can also protect the transmitter and receiver of the safety grating body 1 from dust, dirt or physical damage. In addition, the shading plate 31 can not only reduce the influence of stray light on the safety grating body 1, but also block dust from being adsorbed on the shading sheet 33.

[0038] Furthermore, an upper end cover 25 and a lower end cover 26 are provided on the protective shell 2, and the upper end cover 25 and the lower end cover 26 are tightened on the protective shell 2 by bolts. When in use, the upper end cover 25 and the lower end cover 26 also have the function of blocking ambient light and reducing the influence of dust on the safety grating body 1.

[0039] In addition, a sealing strip 34 is provided between the shading sheet 33 and the protective shell 2, and the sealing strip 34 seals the gap between the shading sheet 33 and the protective shell. Furthermore, a sealing gasket 35 is provided between the upper end cover 25, the lower end cover 26 and the protective shell 2, and the sealing gasket 35 seals between the installation area 21 of the protective shell 2 and the upper end cover 25, the lower end cover 26. Reduce the influence of dust in the external air on the safety grating body 1, and improve the accuracy of the safety grating body 1 when using it.

[0040] In order to further reduce stray light from entering between the two shading plates 31, an extension portion 311 is formed on one end of the two shading plates 31 away from the safety grating body 1, and the two extension portions 311 extend toward a side close to each other. The extension portions 311 on the shading plates 31 can further reduce stray light from entering between the two shading plates 31.

[0041] The two shading plates 31 are provided with fins 36 on the sides close to each other. A plurality of fins 36 are evenly spaced on the corresponding shading plates 31. One end of the plurality of fins 36 is connected to the corresponding shading plates 31, and the other ends extend toward the sides close to each other. When stray light enters between the two shading plates 31, the fins 36 can reduce the refraction of the stray light between the two shading plates 31.

[0042] Furthermore, the inner sides of the two shading plates 31 and the fins 36 are coated with a black coating 37. When stray light enters between the two shading plates 31, as the stray light is refracted between the two shading plates 31, the black coating 37 on the surface of the shading plates 31 and the fins 36 absorbs the stray light, thereby reducing the impact of the stray light on the safety grating body 1.

[0043] The protective shell 2 is provided with an installation slot 27 which runs through both sides of the protective shell 2. When the protective shell 2 is installed, the protective shell 2 is installed through the installation slot 27, which greatly improves the convenience of installing the protective shell 2.

[0044] The implementation principle of a safety grating to prevent interference light in an embodiment of the present application is as follows: the safety grating body 1 is installed in the installation area 21 of the protective shell 2, and then the shading sheet 33 is inserted into the shading slot 24 of the protective shell 2, and then the upper end cover 25 and the lower end cover 26 are installed at both ends of the protective shell 2. When in use, the shading plate 31 reduces the influence of external stray light and dust on the safety grating body 1. In addition, the fins 36 and the black paint reduce the influence of stray light passing through the shading sheet 33 on the safety grating body 1.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A safety grating for preventing interference light, comprising a safety grating body (1), characterized in that: A protective shell (2) is provided on one side of the safety grating body (1); an installation area (21) and a shielding area (22) are formed on the protective shell (2); and the safety grating body (1) is installed in the installation area (21); A shielding component (3) is provided on one side of the protective housing (2) close to the shielding area (22), and the shielding component (3) shields interfering light.

2. The anti-interference light safety grating according to claim 1, characterized in that: The shielding assembly (3) comprises a light shielding sheet (33), a light shielding slot (24) is provided on the protective shell (2), the light shielding sheet (33) is located above the safety grating body (1), and the light shielding sheet (33) is plugged into and matched with the light shielding slot (24).

3. A safety grating for preventing interference light according to claim 2, characterized in that: The protective shell (2) is provided with shading plates (31) on both sides of the shading sheet (33), respectively; the shading plates (31) on both sides extend towards a side away from the protective shell (2), and a light channel (32) is formed between the two shading plates (31); the light channel (32) is connected to the installation area (21).

4. The anti-interference light safety grating according to claim 3, characterized in that: Fins (36) are provided on the sides of the two shading plates (31) that are close to each other, and a plurality of fins (36) are arranged at intervals on the corresponding shading plates (31).

5. The anti-interference light safety grating according to claim 3, characterized in that: An extension portion (311) is formed on each of the two shading plates (31), and the extension portions (311) extend toward a side close to each other on both sides.

6. The safety grating for preventing interference light according to claim 4, characterized in that: The inner side of the shading plate (31) is coated with a black coating (37), and the black coating is distributed on the surface of the shading plate (31) and the fin (36).

7. The anti-interference light safety grating according to claim 1, characterized in that: An upper end cover (25) and a lower end cover (26) are provided on the protective shell (2), and the upper end cover (25) and the lower end cover (26) are mounted on the protective shell (2).

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