Opposite-emission photoelectric switch

Abstract

The utility model discloses a correlation photoelectric switch which comprises a receiving device and a transmitting device arranged on the right side of the receiving device. When the correlation photoelectric switch is used, the protection sleeves are sleeved outside the limiting clamping blocks, then the mounting plates are fixed on the left side and the right side of the security door through the fastening nuts, and then the receiving device and the transmitting device are clamped on the inner sides of the first limiting frame and the second limiting frame. The limiting clamping blocks on the inner sides of the first limiting frame and the second limiting frame are clamped into the limiting clamping grooves in the left and right sides of the receiving device and the transmitting device, the first limiting frame and the second limiting frame are easy to open due to the fact that the first limiting frame and the second limiting frame are made of rubber materials, and the receiving device and the transmitting device are protected due to the fact that the protective sleeve is made of silica gel materials. Through the arrangement of the mounting plate, the first limiting frame and the second limiting frame, the installation and maintenance convenience of the correlation photoelectric switch is enhanced, and through the arrangement of the limiting clamping block, the limiting clamping groove and the protective sleeve, the installation stability of the correlation photoelectric switch is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field related to security monitoring, and particularly relates to a through-beam photoelectric switch. Background Art

[0002] A through-beam photoelectric switch is a photoelectric sensor that uses light beam occlusion or reflection to detect the presence of an object. It is widely used in fields such as industrial automation and security monitoring. It consists of two parts: a transmitter and a receiver. The transmitter emits light. When the object to be detected passes through this light beam, the receiver captures the light signal reflected or occluded by the object, thereby triggering corresponding operations. The through-beam photoelectric switch has characteristics such as high precision, non-contact detection, long-distance detection, and fast response. A security door needs to use a through-beam photoelectric switch during detection. The existing through-beam photoelectric switch is mainly composed of components such as a receiving device, a transmitting device, a receiver, a transmitter, a power cord, a protective plate, a transmitting lamp, and a receiving lamp. The existing through-beam photoelectric switch is inconvenient for the installation and maintenance of the receiving device and the transmitting device when the receiving device and the transmitting device are stably installed during use. Therefore, a through-beam photoelectric switch is essential. Content of the Utility Model

[0003] The purpose of the utility model is to provide a through-beam photoelectric switch to solve the problem that the existing through-beam photoelectric switch is inconvenient for the installation and maintenance of the receiving device and the transmitting device when the receiving device and the transmitting device are stably installed during use as mentioned in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A through-beam photoelectric switch, comprising

[0005] a receiving device and a transmitting device arranged on the right side of the receiving device;

[0006] Transmitting lamps and receiving lamps are respectively arranged at the upper left and right positions of the receiving device and the transmitting device;

[0007] A receiver and a transmitter are respectively installed at the front positions of the receiving device and the transmitting device;

[0008] First limiting frames and second limiting frames are respectively arranged at the upper and lower outer ends of the receiving device and the transmitting device, and a mounting plate is connected to the rear side positions of the first limiting frames and the second limiting frames;

[0009] Limiting card slots are arranged at the left and right positions of the receiving device and the transmitting device. Limiting blocks are connected inside the limiting card slots and at the inner side positions of the first limiting frames and the second limiting frames. A protective sleeve is installed outside the limiting blocks and at the inner side positions of the limiting card slots;

[0010] A power cord is connected to the lower end positions of the receiving device and the transmitting device, and the receiving device and the transmitting device are electrically connected to an external power supply through the power cord;

[0011] Through the settings of the mounting plate, the first limiting frame and the second limiting frame, the convenience of installation and maintenance of the opposed photoelectric switch is enhanced. And the settings of the limiting block, the limiting slot and the protective sleeve enhance the stability of the installation of the opposed photoelectric switch.

[0012] Preferably, the receiver is composed of a photodiode or a combination of phototransistors, and optical elements such as a lens and an aperture are installed at the front of the receiver to receive the light beam emitted by the transmitter.

[0013] Preferably, the receiver can receive the complete light beam emitted by the transmitter without being blocked by an object and output a stable signal.

[0014] Preferably, the transmitter is responsible for emitting light rays, which are infrared rays or lasers, having a certain wavelength and angle to ensure that the light beam can remain stable over a long distance.

[0015] Preferably, the light source in the transmitter may be an LED or a laser diode, which can emit light continuously or with a certain pulse width.

[0016] Preferably, a protective plate is installed on the inner sides of the receiving device and the transmitting device and at the front side positions of the receiver and the transmitter. The protective plate is made of transparent acrylic material. Through the setting of the protective plate, the receiver and the transmitter can be protected.

[0017] Preferably, mounting holes are provided at the four corner positions of the mounting plate inside the mounting plate, and the mounting holes penetrate through the mounting plate.

[0018] Preferably, the mounting plate is fixed to the left and right sides of the security door through the mounting holes and fastening nuts, so that the receiving device and the transmitting device are respectively installed on the left and right sides of the security door.

[0019] Compared with the prior art, the present utility model provides an opposed photoelectric switch, which has the following beneficial effects:

[0020] The utility model improves the opposed photoelectric switch. When using the opposed photoelectric switch, first sleeved the protective cover outside the limiting block, then fixed the mounting plate on the left and right sides of the security door through the fastening nut, and then clamped the receiving device and the transmitting device inside the first limiting frame and the second limiting frame, so that the limiting blocks inside the first limiting frame and the second limiting frame are clamped into the limiting slots on the left and right of the receiving device and the transmitting device. Since the first limiting frame and the second limiting frame are made of rubber material and are easy to open, when the limiting block enters the inside of the limiting slot, because the protective cover is made of silica gel material, it will protect the receiving device and the transmitting device. Then the transmitter emits light, and these lights are irradiated onto the receiver through specific wavelengths and angles. When an object passes through the light beam between the transmitter and the receiver, the light beam will be blocked, and the receiver will not receive light accordingly, thereby triggering a change in the switch signal. Through the settings of the mounting plate, the first limiting frame and the second limiting frame, the convenience of installation and maintenance of the opposed photoelectric switch is enhanced, while the settings of the limiting block, the limiting slot and the protective cover enhance the stability of the installation of the opposed photoelectric switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. is a schematic structural diagram of the whole opposed photoelectric switch of the utility model.

[0022] Figure 2 FIG. is a schematic structural diagram of the opposed type of the opposed photoelectric switch of the utility model.

[0023] Figure 3 FIG. is an enlarged schematic structural diagram of the inside of the limiting slot of the opposed photoelectric switch of the utility model.

[0024] In the figure: 1, receiving device; 2, mounting hole; 3, emitting lamp; 4, receiving lamp; 5, protective plate; 6, transmitting device; 7, mounting plate; 8, power cord; 9, first limiting frame; 10, second limiting frame; 11, receiver; 12, transmitter; 13, limiting block; 14, limiting slot; 15, protective cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] The present utility model provides as Figures 1-3The opposed photoelectric switch shown, the opposed photoelectric switch includes a receiving device 1 and a transmitting device 6 arranged to the right of the receiving device 1; at the upper left and right positions of the receiving device 1 and the transmitting device 6, a transmitting lamp 3 and a receiving lamp 4 are respectively arranged; at the front positions of the receiving device 1 and the transmitting device 6, a receiver 11 and a transmitter 12 are respectively installed; at the upper and lower outer positions of the receiving device 1 and the transmitting device 6, a first limiting frame 9 and a second limiting frame 10 are respectively arranged, and at the rear position of the first limiting frame 9 and the second limiting frame 10, a mounting plate 7 is connected; at the left and right positions of the receiving device 1 and the transmitting device 6, a limiting slot 14 is arranged, and inside the limiting slot 14 and at the inner position of the first limiting frame 9 and the second limiting frame 10, a limiting block 13 is connected, and outside the limiting block 13 and at the inner position of the limiting slot 14, a protective sleeve 15 is installed; at the lower positions of the receiving device 1 and the transmitting device 6, a power cord 8 is connected, and the receiving device 1 and the transmitting device 6 are electrically connected to an external power supply through the power cord 8; through the settings of the mounting plate 7, the first limiting frame 9 and the second limiting frame 10, the convenience of installation and maintenance of the opposed photoelectric switch is enhanced, and the settings of the limiting block 13, the limiting slot 14 and the protective sleeve 15 enhance the stability of the installation of the opposed photoelectric switch.

[0027] As Figure 1 , Figure 2 and Figure 3 shown, in order to enhance the convenience of installation and maintenance of the opposed photoelectric switch, when using the opposed photoelectric switch, first sleeve the protective sleeve 15 on the outside of the limiting block 13, then fix the mounting plate 7 on the left and right sides of the security door through fastening nuts, then snap the receiving device 1 and the transmitting device 6 inside the first limiting frame 9 and the second limiting frame 10, so that the limiting block 13 inside the first limiting frame 9 and the second limiting frame 10 snaps into the limiting slots 14 on the left and right of the receiving device 1 and the transmitting device 6. Since the first limiting frame 9 and the second limiting frame 10 are made of rubber material and are easy to open, when the limiting block 13 enters the inside of the limiting slot 14, since the protective sleeve 15 is made of silicone material, it will protect the receiving device 1 and the transmitting device 6. Then the transmitter 12 emits light, and these lights are irradiated onto the receiver 11 through specific wavelengths and angles. When an object passes through the light beam between the transmitter 12 and the receiver 11, the light beam will be blocked, and the receiver 11 will then receive no light, thereby triggering a change in the switch signal. Through the settings of the mounting plate 7, the first limiting frame 9 and the second limiting frame 10, the convenience of installation and maintenance of the opposed photoelectric switch is enhanced, and the settings of the limiting block 13, the limiting slot 14 and the protective sleeve 15 enhance the stability of the installation of the opposed photoelectric switch.

[0028] The receiver 11 is composed of a combination of a photodiode and a phototransistor. An optical element such as a lens and an aperture is installed at the front of the receiver 11 to receive the light beam emitted by the transmitter 12. The receiver 11 can receive the complete light beam emitted by the transmitter 12 without being blocked by an object and output a stable signal. The transmitter 12 is responsible for emitting light, which is infrared or laser light with a certain wavelength and angle to ensure that the light beam can remain stable over a long distance. The light source in the transmitter 12 may be an LED or a laser diode, which can emit light continuously or with a certain pulse width. A protective plate 5 is installed inside the receiving device 1 and the transmitting device 6 and at the front side position of the receiver 11 and the transmitter 12. The protective plate 5 is made of transparent acrylic material. Through the setting of the protective plate 5, the receiver 11 and the transmitter 12 can be protected.

[0029] As Figure 1 and Figure 2 shown, in order to protect the receiver 11 and the transmitter 12, when using the opposed photoelectric switch, first install the transmitter 12 and the receiver 11 at the front of the transmitting device 6 and the receiving device 1 respectively, and then install the protective plate 5 inside the transmitting device 6 and the receiving device 1 so that the protective plate 5 is located at the front side of the transmitter 12 and the receiver 11. The transmitter 12 emits light, and these light rays irradiate the receiver 11 at a specific wavelength and angle. When an object passes through the light beam between the transmitter 12 and the receiver 11, the light beam will be blocked, and the receiver 11 will no longer receive light, thus triggering a change in the switch signal. Through the setting of the protective plate 5, the receiver 11 and the transmitter 12 can be protected, so that the opposed photoelectric switch can be used better.

[0030] Installation holes 2 are provided at the four corner positions inside the mounting plate 7 and penetrate the mounting plate 7. The mounting plate 7 is fixed to the left and right sides of the security door through the installation holes 2 and fastening nuts, so that the receiving device 1 and the transmitting device 6 are respectively installed on the left and right sides of the security door.

[0031] As Figure 1 and Figure 2As shown, for the convenience of the installation and disassembly of the receiving device 1 and the transmitting device 6, when using the opposed photoelectric switch, first place the mounting plate 7 on the left and right sides of the security door, so that the mounting holes 2 inside the mounting plate 7 are aligned with the connection holes inside the security door. Then insert the fastening nuts into the mounting holes 2 and the connection holes and fix them by threading, so that the mounting plate 7 is installed on the left and right sides of the security door. Then, the receiving device 1 and the transmitting device 6 are clamped inside the first limiting frame 9 and the second limiting frame 10, so that the receiving device 1 and the transmitting device 6 are installed on the left and right sides of the security door. Through the setting of the mounting holes 2 and the fastening nuts, the installation and disassembly of the mounting plate 7 are facilitated, and thus the installation and disassembly of the receiving device 1 and the transmitting device 6 are facilitated.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Through-beam photoelectric switch, characterized by: including a receiving device (1) and a transmitting device (6) arranged to the right of the receiving device (1); emitting lights (3) and receiving lights (4) are respectively arranged at the upper left and right positions of the receiving device (1) and the transmitting device (6); a receiver (11) and a transmitter (12) are respectively installed at the front positions of the receiving device (1) and the transmitting device (6); a first limiting frame (9) and a second limiting frame (10) are respectively arranged at the upper and lower ends outside the receiving device (1) and the transmitting device (6), and a mounting plate (7) is connected to the rear side positions of the first limiting frame (9) and the second limiting frame (10); limiting card slots (14) are arranged at the left and right positions of the receiving device (1) and the transmitting device (6), a limiting card block (13) is connected to the inside of the limiting card slots (14) and at the inner side positions of the first limiting frame (9) and the second limiting frame (10), and a protective sleeve (15) is installed at the inner side positions of the limiting card block (13) and the limiting card slots (14); a power cord (8) is connected to the lower ends of the receiving device (1) and the transmitting device (6), and the receiving device (1) and the transmitting device (6) are electrically connected to an external power supply through the power cord (8); Through the settings of the mounting plate (7), the first limiting frame (9) and the second limiting frame (10), the convenience of installation and maintenance of the opposed photoelectric switch is enhanced, while the settings of the limiting card block (13), the limiting card slots (14) and the protective sleeve (15) enhance the stability of the installation of the opposed photoelectric switch.

2. The opposed photoelectric switch according to claim 1, wherein: The receiver (11) is composed of a photodiode or a combination of phototransistors, and optical elements such as a lens and a diaphragm are installed at the front of the receiver (1) to receive the light beam emitted by the transmitter (12).

3. The opposed photoelectric switch according to claim 2, characterized in that: The receiver (11) can receive the complete light beam emitted by the transmitter (12) without being blocked by an object and output a stable signal transmission.

4. The opposed photoelectric switch according to claim 3, characterized in that: The transmitter (12) is responsible for emitting light rays, which are infrared rays or lasers, having a certain wavelength and angle to ensure that the light beam can remain stable over a long distance.

5. The opposed photoelectric switch according to claim 4, characterized in that: The light source in the transmitter (12) may be an LED or a laser diode, which can emit light continuously or with a certain pulse width.

6. The opposed photoelectric switch according to claim 1, characterized in that: A protective plate (5) is installed at the inner side of the receiving device (1) and the transmitting device (6) and at the front side positions of the receiver (11) and the transmitter (12). The protective plate (5) is made of transparent acrylic material. Through the setting of the protective plate (5), the receiver (11) and the transmitter (12) can be protected.

7. The opposed photoelectric switch according to claim 1, wherein: Mounting holes (2) are arranged at the four corner positions of the mounting plate (7) and inside the mounting plate (7), and the mounting holes (2) penetrate through the mounting plate (7).

8. The opposed photoelectric switch according to claim 6, characterized in that: The mounting plate (7) is fixed to the left and right sides of the security door through the mounting holes (2) and fastening nuts, so that the receiving device (1) and the transmitting device (6) are respectively installed on the left and right sides of the security door.

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