Conveyor safety area protection detection device

Abstract

The utility model discloses a safety area protection detection device for a transport plane. The safety area protection detection device comprises an insulating rod fixedly installed on the side wall of a one-way pedestrian path beside the transport plane, a spring buckle with a notch, a safety back clamp connected with the spring buckle through a safety rope, and a detection module installed beside the insulating rod. A metal block is arranged at the spring notch; the detection module comprises a box body installed on the side wall of the one-way pedestrian path, a proximity switch installed on the box body, a circuit board and a wireless communication module. The outer side of the box body is provided with an extending plate used for preventing the spring buckle from passing. A safe distance is kept between a worker and the conveying belt through the safety back clamp and the safety rope, the worker cannot be wound in even if the worker makes contact with the conveying belt, meanwhile, passing workers can be counted through the detection module, and accurate detection of the states of the workers is achieved.

Description

Technical Field

[0001] The utility model relates to the field of safety protection of transport aircraft, in particular to protection detection of safety areas of transport aircraft. Background Art

[0002] Belt conveyors are commonly used material handling equipment in industrial and mining enterprises, used to transport raw materials or products between different production links. However, there are certain safety hazards during operation.

[0003] When workers are too close to a transporter, they may be drawn into the transporter, resulting in a safety accident. To solve this problem, measures such as setting up warning signs or physical fences are usually taken. These measures often rely on the workers' alertness and reaction speed, and human factors may lead to the implementation of safety measures not being timely or effective.

[0004] In addition, before the conveyor starts, the operator in the control room cannot determine whether there are workers next to the conveyor. When the conveyor starts, the conveyor belt moves suddenly, which is easy to cause harm to the workers next to the conveyor, which is very important for the safe production of coal mine operations. To solve this problem, the existing method is to install an infrared detection device next to the conveyor to detect the status of personnel. However, it is inevitable that there will be objects blocking the infrared monitoring area or the personnel are not in the infrared monitoring area, resulting in inaccurate detection results. Utility Model Content

[0005] The utility model proposes a transport aircraft safety area protection detection device, the purpose of which is:

[0006] 1. Solve the problem that the distance between the staff and the transport aircraft is too close, which may easily cause accidents;

[0007] 2. Solve the problem of inaccurate personnel status detection.

[0008] The technical solution of this utility model is as follows:

[0009] A conveyor safety area protection detection device comprises an insulating rod fixedly mounted on the side wall of a one-way pedestrian passage next to the conveyor, a spring buckle buckled on the insulating rod, a safety back clip connected to the spring buckle via a safety rope, and a detection module mounted beside the insulating rod.

[0010] A notch is provided at the outer edge of the spring buckle, and a metal block is provided at the notch; the detection module includes a box body installed on the side wall of the one-way pedestrian passage, and a proximity switch installed on the box body; an extension plate for blocking the spring buckle from passing is installed on the outside of the box body, and when the spring buckle is rotated to a position corresponding to the notch and the extension plate so that the spring buckle can pass, the proximity switch corresponds to the position of the metal block.

[0011] Optionally, the detection module further includes a circuit board and a wireless communication module, the proximity switch is electrically connected to the circuit board, and the circuit board is electrically connected to the wireless communication module.

[0012] Optionally, the horizontal position of the extension plate is adjustable.

[0013] Optionally, a strip-shaped hole is formed on the extending plate, and the extending plate is mounted on the box body by means of bolts passing through the strip-shaped hole.

[0014] Compared with the prior art, the utility model has the following positive effects:

[0015] (1) The workers’ range of movement is restricted by safety ropes and safety back clips to prevent the workers from being too close to the transporter, thereby effectively preventing the risks caused by workers’ illegal operations.

[0016] (2) Through the cooperation of the extended plate of the detection module and the spring buckle notch, it can be ensured that when the staff passes through the detection module, the metal block must be aligned with the proximity switch, further ensuring the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a top view of the transport aircraft safety area protection detection device;

[0018] Figure 2 It is the cross-sectional view of 1-1;

[0019] Figure 3 It is a top view of the extended plate;

[0020] Figure 4 This is the communication structure diagram of the detection module.

[0021] In the figure: 1. insulating rod, 2. spring buckle, 201. metal block, 3. detection module, 301. box body, 302. circuit board, 303. wireless communication module, 304. proximity switch, 4. safety rope, 5. safety back clip, 6. conveyor belt, 7. bolt, 8. extension plate. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0023] like Figure 1A conveyor safety area protection detection device includes an insulating rod 1 fixedly mounted on the side wall of a one-way pedestrian passage next to the conveyor, a spring buckle 2 buckled on the insulating rod 1, a safety back clip 5 connected to the spring buckle 2 through a safety rope 4, and a detection module 3 installed next to the insulating rod 1. Generally, there is a one-way pedestrian passage on each side of the conveyor, and the safety area detection module 3 is installed on each one-way pedestrian passage on each side.

[0024] like Figure 2 A notch is provided at the outer edge of the spring buckle 2, and a metal block 201 is provided at the notch; the detection module 3 includes a box body 301 installed on the side wall of the one-way pedestrian passage, a proximity switch 304 installed on the box body 301, a circuit board 302 and a wireless communication module 303; an extension plate 8 for blocking the passage of the spring buckle 2 is installed on the outer side of the box body 301. Only when the spring buckle 2 is rotated to a position corresponding to the notch and the extension plate 8, the spring buckle 2 can pass through. At this time, the proximity switch 304 corresponds to the position of the metal block 201, and the proximity switch 304 can detect the metal block 201.

[0025] The extending plate 8 is provided with a strip hole, and the extending plate 8 is mounted on the box body 301 by means of a bolt 7 passing through the strip hole. After the bolt 7 is loosened, the position of the extending plate 8 can be adjusted.

[0026] The proximity switch 304 is electrically connected to the circuit board 302 , and the circuit board 302 is electrically connected to the wireless communication module 303 .

[0027] The proximity switch 304 uses an inductive proximity sensor, the circuit board 302 uses an STM32F103C8T6 main control chip, and the wireless communication module 303 uses a ZigBee (CC2530) module, which is compatible with STM32 and supports the ZigBee protocol. A battery module is also provided in the box body 301, and the battery module is connected to the power supply module on the circuit board to convert the 5V voltage into 3.3V.

[0028] The proximity switch 304 is electrically connected to the circuit board 302 in the following manner: VCC and GND of the proximity switch 304 are respectively connected to the 3.3V power supply and ground wire of the power supply module of the circuit board 302 , and the output signal pin of the proximity switch 304 is connected to a GPIO pin of the circuit board 302 .

[0029] The wireless communication module 303 is electrically connected to the circuit board 302 in the following manner: the VCC and GND of the wireless communication module 303 are respectively connected to the 3.3V power supply and ground wire of the power supply module of the circuit board 302. The TX and RX pins of the wireless communication module 303 are respectively connected to the TX and RX pins of the USART of the circuit board 302.

[0030] When in use, the staff wears the safety back clip 5 and enters the one-way pedestrian passage, buckles the spring buckle 2 at the starting section, rotates the spring buckle 2 so that the notch on the spring buckle 2 corresponds to the extended plate 8 on the detection module 3, and then passes through the detection module 3 at the starting section. The proximity switch 304 senses the metal block 201 and sends a high potential signal. The STM32 detects the signal change on the GPIO pin and triggers an interrupt. In the interrupt service program, the pre-set data is sent to the wireless communication module 303 through the USART, and the wireless communication module 303 sends the data to the host receiving end wirelessly, and the host receives the data from the detection module 3 at the starting section.

[0031] Under the restriction of the safety rope 4 and the safety back clamp 5, the worker always maintains a safe operating distance from the conveyor and will not be drawn in even if he / she comes into contact with the rollers, thereby preventing accidents.

[0032] When the worker reaches the end section, the spring buckle 2 passes through the detection module 3 again, and the host receives data from the detection module 3 of the end section.

[0033] The control personnel can determine whether there are people in the section based on the data of the starting and ending sections: if the number of times the ending section sends data is less than the number of times the starting section sends data, the section is in a occupied state and the start operation is prohibited; otherwise, it is in an unmanned state and the start operation can be performed.

[0034] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. The scope of the present invention is defined by the claims rather than the above description.

Claims

1. A transport aircraft safety area protection detection device, characterized in that: It comprises an insulating rod (1) fixedly mounted on the side wall of a one-way pedestrian passage next to a conveyor, a spring buckle (2) buckled on the insulating rod (1), a safety back clip (5) connected to the spring buckle (2) via a safety rope (4), and a detection module (3) mounted on the side of the insulating rod (1); The detection module (3) comprises at least two parts, which are respectively installed at the starting section and the ending section of the insulating rod (1); The detection module (3) comprises a box body (301) mounted on the side wall of the one-way pedestrian passage and a proximity switch (304) mounted on the box body (301); The outer edge of the spring buckle (2) is provided with a notch, and a metal block (201) is provided at the notch; a protruding plate (8) for blocking the spring buckle (2) from passing is installed on the outer side of the box body (301); when the spring buckle (2) is rotated to a position where the notch and the protruding plate (8) correspond to the position of the spring buckle (2) so that the spring buckle (2) can pass, the proximity switch (304) corresponds to the position of the metal block (201).

2. The transport aircraft safety area protection detection device according to claim 1, characterized in that: The detection module (3) further comprises a circuit board (302) and a wireless communication module (303) installed in the box body (301); the proximity switch (304) is electrically connected to the circuit board (302); and the circuit board (302) is electrically connected to the wireless communication module (303).

3. The transport aircraft safety area protection detection device according to claim 1 or 2, characterized in that: The horizontal position of the extending plate (8) is adjustable.

4. The transport aircraft safety area protection detection device according to claim 3, characterized in that: The extending plate (8) is provided with a strip-shaped hole, and the extending plate (8) is mounted on the box body (301) via a bolt (7) passing through the strip-shaped hole.

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