Light curtain protection device

Abstract

The utility model discloses a light curtain protection device. The light curtain protection device comprises a protection assembly; one side of the protection assembly is provided with a connecting assembly which is connected with the other protection assembly to form a protection device; a volume cavity is formed in the inner side of the protection assembly, the two protection devices are oppositely arranged, and an emitter or a receiver of the light curtain body is arranged on the inner side of the protection assembly. By designing the protection device, the infrared light curtain can be designed and connected in a sectional mode and bent, the infrared light curtain is convenient to store in the conveying process, and the light curtain is convenient to install and protect by conducting pre-installation treatment on the shell of the protection device.

Description

Technical Field

[0001] The utility model relates to the technical field of light curtains, in particular to a light curtain protection device. Background Art

[0002] Infrared light curtains utilize infrared technology for detection and protection, and are used in sensing equipment such as subways, elevators, and various gates. During transport and installation, light curtains are relatively long, reaching up to 2 meters, making them inconvenient to transport. Furthermore, they integrate numerous infrared emitters, receivers, and electronic components, requiring protection and making them susceptible to damage during transport and installation. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a light curtain protection device.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a light curtain protection device, comprising:

[0005] Protect components;

[0006] A connecting component is provided on one side of the protection component, which is connected to another protection component to form a protection device;

[0007] A volume cavity is formed inside the protection component, and two protection devices are arranged opposite to each other. A transmitter or a receiver of the light curtain body is arranged inside the protection component.

[0008] As a further description of the above technical solution: a notch is provided on one side of the protection component so that the volume cavity is connected to the outside world, and the light curtain body is connected to the outside world through the notch.

[0009] As a further description of the above technical solution: the connecting component includes a shell, one side of the shell is provided with a packaging cover, and the other side is connected to the connecting component.

[0010] As a further description of the above technical solution: extended protrusions are provided on the inner walls on both sides of the shell.

[0011] As a further description of the above technical solution: a slide rail is provided on the shell below the notch.

[0012] As a further description of the above technical solution: the connecting assembly includes a plug-in portion and a connecting portion, the plug-in portion extends to the inner side of the shell and cooperates with the protrusion to limit the position, and an upwardly extending plug-in column is provided on one side of the plug-in portion.

[0013] As a further description of the above technical solution: two positioning posts are further provided on the plug-in portion, and the two positioning posts are provided on the inner side of the shell and on both sides of the slide rail.

[0014] As a further description of the above technical solution: a limiting portion is provided between the two positioning posts, and the limiting portion is located inside the notch to limit the light curtain body.

[0015] As a further description of the above technical solution: the connecting portion is in an oblong shape, and is provided with two circular holes that cooperate with the plug-in posts.

[0016] As a further description of the above technical solution: the side of the plug-in portion close to the plug-in column is semicircular, so that the two plug-in portions can rotate relative to each other.

[0017] The above technical solution has the following advantages or beneficial effects:

[0018] By designing a protective device, the infrared light curtain can be connected in sections and bent, making it easy to store during transportation. By pre-installing the protective device on the housing, the light curtain can be easily installed and protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of the protective device proposed in the present utility model;

[0020] Figure 2 This is a front view of the protective device proposed by the utility model;

[0021] Figure 3 It is an enlarged structural diagram of the plug-in part and the connecting part in the utility model.

[0022] Legend:

[0023] 1. Notch; 2. Shell; 21. Protrusion; 22. Slide rail; 3. Packaging cover; 4. Connecting part; 41. Connecting column; 42. Positioning column; 43. Limiting part; 5. Connecting part; 51. Round hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1-Figure 3The utility model provides an embodiment: a light curtain protection device, comprising: a protection component; a connecting component is provided on one side of the protection component, which is connected to another protection component to form a protection device; a volume cavity is formed on the inner side of the protection component, and the two protection devices are arranged opposite to each other, and a transmitter or receiver of the light curtain body is provided on the inner side of the protection component.

[0026] In this embodiment, the protective device is constructed from several protective components connected by connectors. The infrared light curtain can be connected in sections and placed inside the protective components to prevent damage to the main body of the light curtain. During installation, the light curtain bodies are positioned relative to each other (not shown). The transmitter and receiver components are installed in the two protective devices, aligned, and then powered on. When powered on, the transmitter and receiver components are programmed to perform vertical scanning movements when they are within 300 mm of each other. When the transmitter and receiver components are separated by more than 300 mm, a cross-scanning function is added via software, forming a light curtain with both horizontal and cross-scanning movements. If a person or object enters the protective barrier, blocking or disrupting the normal operation of the infrared light, the main controller of the light curtain body is immediately activated, relaying and outputting protection signals, enabling the execution system to operate. The protective device design allows the infrared light curtain to be connected in sections and bent, making it easier to store during transportation. Pre-installation on the protective device housing facilitates installation and protection of the light curtain.

[0027] For protection devices with high requirements, the protection components can be combined arbitrarily (1 to multiple sections), and the main control system will automatically identify them (under the premise of increased power). There is no need for additional software programming, avoiding the cumbersome form of dial-up coding. Since the protection device adopts a segmented plug-in installation form, the original longer light curtain body can be switched into multiple shorter components, making it more convenient to carry.

[0028] A notch 1 is provided on one side of the protection component to connect the volume cavity with the outside world, and the light curtain body is connected with the outside world through the notch 1.

[0029] In this embodiment, a slot 1 is provided on one side of the protection component, and the transmitter and receiver of the light curtain body transmit infrared signals through the slot 1 to form a light curtain, and enable the light curtain body to perform horizontal scanning and cross scanning.

[0030] The connecting assembly includes a housing 2 , a packaging cover 3 is provided on one side of the housing 2 , and the other side is connected to the connecting assembly.

[0031] In this embodiment, a volume cavity is formed by the housing 2 and the packaging cover 3 , and the light curtain body is installed inside the housing 1 .

[0032] Extended protrusions 21 are provided on both inner walls of the housing 2 .

[0033] In this embodiment, the PCB board of the light curtain body is located below the protrusion 21, which limits the position of the PCB board and prevents the light curtain body from being damaged by collision during movement and installation.

[0034] The housing 2 is provided with a slide rail 22 below the slot 1 .

[0035] In this embodiment, the slide rail 22 is located on the inner side of the shell 1, and the setting direction is parallel to the setting direction of the slot 1. The transmitter or receiver of the light curtain body is set on the slide rail 22 for position adjustment to achieve one-to-one correspondence between the positions of the transmitter and the receiver.

[0036] The connecting assembly includes a plug-in portion 4 and a connecting portion 5 . The plug-in portion 4 extends to the inside of the housing 2 and is limitedly engaged with the protrusion 21 . An upwardly extending plug-in column 41 is provided on one side of the plug-in portion 4 .

[0037] In this embodiment, one side of the connector 4 extends into the interior of the housing 2, while both ends extend upward to engage the lower end surface of the protrusion 21, securing the light curtain body in place. This enhances the overall rigidity of the protective device after connection, significantly improving positioning accuracy compared to cable-connected mounting holes and simplifying operation. The other side of the connector 4 is located outside the housing 2, with a vertical connector post 41 positioned toward the notch 1, which engages with a circular hole 51 in the connecting portion 5.

[0038] Two positioning posts 42 are further provided on the plug-in portion 4 . The two positioning posts 42 are provided on the inner side of the housing 2 and on both sides of the slide rail 22 .

[0039] In this embodiment, the spacing between the positioning posts 42 is greater than the width of the slide rails 22 and is snapped onto the inner side of the housing 2 for installation and positioning.

[0040] Furthermore, the packaging cover 3 is provided with positioning posts of the same structure to package the housing 1 .

[0041] A limiting portion 43 is provided between the two positioning posts 42 . The limiting portion 43 is located inside the slot 1 to limit the position of the light curtain body.

[0042] In this embodiment, a limiting portion 43 is provided between the positioning posts 42 . The limiting portion 43 is located inside the slot 1 and blocks a portion of the area to prevent the transmitter and receiver of the light curtain body from falling out.

[0043] The connecting portion 5 is in an oblong shape and has two circular holes 51 formed thereon for mating with the plug posts 41 . The side of the plug-in portion 4 close to the plug-in post 41 is semicircular, so that the two plug-in portions 4 can rotate relative to each other.

[0044] In this embodiment, the plug-in column 41 cooperates with the circular hole 51 on the connecting portion 5, so that the shell 2 is driven to rotate by the plug-in portion 2, and the setting angle of the two shells can be adjusted.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A light curtain protection device, characterized in that: include: Protect components; A connecting component is provided on one side of the protection component, which is connected to another protection component to form a protection device; A volume cavity is formed inside the protection component, and two protection devices are arranged opposite to each other. A transmitter or a receiver of the light curtain body is arranged inside the protection component.

2. The protection device according to claim 1, characterized in that: A notch (1) is provided on one side of the protection component, so that the volume cavity is in communication with the outside world, and the light curtain body is in communication with the outside world through the notch (1).

3. The protection device according to claim 2, characterized in that: The connecting assembly comprises a shell (2), one side of the shell (2) is provided with a packaging cover (3), and the other side is connected to the connecting assembly.

4. The protection device according to claim 3, characterized in that: Extended protrusions (21) are provided on the inner walls of both sides of the housing (2).

5. The protection device according to claim 4, characterized in that: The housing (2) is provided with a slide rail (22) below the notch (1).

6. The protection device according to claim 5, characterized in that: The connecting assembly comprises a plug-in portion (4) and a connecting portion (5); the plug-in portion (4) extends to the inner side of the housing (2) and is limitedly engaged with the protrusion (21); and an upwardly extending plug-in column (41) is provided on one side of the plug-in portion (4).

7. The protection device according to claim 6, characterized in that: Two positioning posts (42) are also provided on the plug-in portion (4), and the two positioning posts (42) are provided on the inner side of the housing (2) and on both sides of the slide rail (22).

8. The protection device according to claim 7, characterized in that: A limiting portion (43) is provided between the two positioning columns (42), and the limiting portion (43) is located inside the notch (1) to limit the light curtain body.

9. The protection device according to claim 6, characterized in that: The connecting portion (5) is in an oblong shape and has two circular holes (51) formed thereon, which are matched with the plug-in posts (41).

10. The protection device according to claim 6, characterized in that: The side of the plug-in portion (4) close to the plug-in column (41) is semicircular, so that the two plug-in portions (4) can rotate relative to each other.

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