Safety warning device for loading and unloading area of vehicle

Abstract

The utility model discloses a safety alarm device for a vehicle loading and unloading area, comprising a warehouse unit which comprises a warehouse chamber, a rolling gate arranged at an unloading port of the warehouse chamber, and a chain plate machine which is arranged in the warehouse chamber and is opposite to the rolling gate; the alarm unit comprises a first sensor which is mounted at the rolling gate and is used for sensing the opening and closing of the rolling gate, a second sensor which is mounted at the unloading port of the warehouse and is used for sensing vehicles, an audible and visual alarm which is mounted at the unloading port of the warehouse, and a controller which is electrically connected with the first sensor, the second sensor and the audible and visual alarm; in the unloading and backing process of the vehicle, obstacles such as vehicles or people in front of a loading and unloading opening can be detected, sound-light alarm is triggered, and surrounding personnel are reminded that the vehicle backs up and rapidly leaves a dangerous area. Meanwhile, a driver can be reminded to control the vehicle speed, when the vehicle is close to a proper distance of a loading and unloading port platform, the sound-light alarm stops, the driver is reminded that the vehicle is in place, and accidents are avoided.

Description

Technical Field

[0001] The utility model relates to a safety alarm device for a vehicle loading and unloading area, belonging to the technical field of cigarette logistics unloading. Background Art

[0002] At cigarette logistics centers, vehicles present significant risks during loading and unloading due to blind spots. Existing safety measures rely primarily on manual guidance and signage, which are technologically backward. Accidents such as vehicles crashing into platforms often occur when vehicles reverse to unload. To reduce the threat to personnel and property during loading and unloading, eliminate potential safety hazards, and improve the safety of cigarette unloading, research and improvements are necessary. Utility Model Content

[0003] Based on the above, the present invention provides a vehicle loading and unloading area safety warning device to overcome the shortcomings of the prior art.

[0004] The technical solution of the utility model is: a vehicle loading and unloading area safety alarm device, comprising:

[0005] A warehouse unit, comprising a warehouse room, a rolling shutter door installed at a discharge port of the warehouse room, and a chain conveyor installed in the warehouse room and facing the rolling shutter door;

[0006] The alarm unit includes a first sensor installed at the rolling shutter door for sensing the opening and closing of the rolling shutter door, a second sensor installed at the unloading port of the warehouse room for sensing vehicles, an audible and visual alarm installed at the unloading port of the warehouse room, and a controller electrically connected to the first sensor, the second sensor and the audible and visual alarm respectively.

[0007] In one example, the first sensor is installed at a predetermined height inside the rolling shutter door. The first sensor is a photoelectric sensor facing the rolling shutter door.

[0008] In one example, a platform is provided at the unloading port, and the second sensor is installed in the middle of the vertical wall of the platform, and the second sensor is an ultrasonic sensor.

[0009] In one example, rubber tires are installed on both sides of the platform located at the second sensor.

[0010] In one example, the sound and light alarm is installed on the side wall of the warehouse room unloading port.

[0011] The beneficial effects of the present invention are as follows: Firstly, the warning device can detect obstacles such as vehicles or people in front of the loading and unloading port during the reverse process, triggering an audible and visual alarm to alert people around that a vehicle is reversing and to quickly leave the danger zone. Secondly, it can remind the driver to control the speed of the vehicle. When the vehicle approaches the loading and unloading port platform within an appropriate distance, the audible and visual alarm stops, notifying the driver that the vehicle has arrived. The driver can then apply the brakes, reducing the risk of the vehicle damaging buildings and avoiding accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the vehicle loading and unloading area safety warning device;

[0013] Figure 2 This is the control principle diagram of the safety warning device for vehicle loading and unloading areas;

[0014] Description of reference numerals:

[0015] Warehouse unit: 11 warehouse room, 12 rolling door, 13 chain conveyor, 14 platform, 15 rubber tire;

[0016] Alarm unit: 21 first sensor, 22 second sensor, 23 sound and light alarm, 24 controller. DETAILED DESCRIPTION

[0017] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] See also Figure 1 and 2 , this embodiment provides a vehicle loading and unloading area safety alarm device, including a warehouse unit and an alarm unit.

[0019] The warehouse unit includes a warehouse room 11, a rolling shutter door 12 installed at the unloading port of the warehouse room 11, and a chain conveyor 13 installed in the warehouse room 11 and facing the rolling shutter door 12. The alarm unit includes a first sensor 21 installed at the rolling shutter door 12 for detecting the opening and closing of the rolling shutter door 12, a second sensor 22 installed at the unloading port of the warehouse room 11 for detecting vehicles, an audible and visual alarm 23 installed at the unloading port of the warehouse room 11, and a controller 24 electrically connected to the first sensor 21, the second sensor 22, and the audible and visual alarm 23, respectively. The first sensor 21 is a photoelectric sensor, and the second sensor 22 is an ultrasonic sensor.

[0020] When the vehicle is unloading, the rolling shutter door 12 is opened. The first sensor 21 automatically activates the alarm unit after detecting that the rolling shutter door 12 is opened. When the vehicle approaches the unloading port within 5 meters, the sound and light alarm 23 is turned on, and a voice broadcast asks people around to leave. When the vehicle is within 0.3 meters from the unloading port, the sound and light alarm 23 stops, prompting the driver that the vehicle is in place. Through this alarm device, during the vehicle reversing process, firstly, it can detect obstacles such as vehicles or people in front of the loading and unloading port, trigger the sound and light alarm, and remind people around that there is a vehicle reversing and quickly leave the dangerous area. Secondly, it can remind the driver to control the speed of the vehicle. When the vehicle approaches the loading and unloading port platform 14 within an appropriate distance, the sound and light alarm stops, prompting the driver that the vehicle is in place. The driver brakes the vehicle to reduce the risk of the vehicle damaging houses and buildings and avoid accidents.

[0021] For the convenience of operation, the first sensor 21 is installed at a predetermined height on the inner side of the rolling shutter door 12, facing the rolling shutter door 12. When the rolling shutter door of the loading and unloading area is opened and exceeds the position of the first sensor 21, it is regarded as the vehicle loading and unloading operation, and the loading and unloading area safety alarm device is automatically activated.

[0022] To facilitate detection and unloading, a platform 14 is provided at the unloading port. A second sensor 22 is mounted in the middle of the vertical wall of the platform 14, accurately detecting the distance between the vehicle and the platform 14. To ensure the safety of the second sensor 22, rubber tires 15 are installed on both sides of the platform 14 to protect it from vehicle impact.

[0023] In order to facilitate the driver to check, the sound and light alarm 23 is installed on the side wall of the unloading port of the warehouse room 11.

[0024] Application Case: After the applicant implemented the vehicle loading and unloading area safety alarm device, 83 vehicles were unloaded from June to July, with 14 vehicles hitting the platform while reversing, and no manual warning of reversing was required. A theoretical 83 sound and light alarms were triggered, with 92 actual alarms, 9 of which were caused by industrial drivers repeatedly reversing. The vehicle loading and unloading area safety alarm device achieved a 100% alarm rate. Due to its practicality and simple structure, it effectively addressed the safety hazards of industrial vehicle unloading. Therefore, in early September 2024, the applicant applied the device to another cigarette unloading entrance. The equipment has been installed and debugged, and it was put into normal operation on September 20, 2024. The vehicle loading and unloading area safety alarm device achieved a 100% alarm rate, achieving the target value.

[0025] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. Vehicle loading and unloading area safety warning device, characterized by: include: A warehouse unit comprising a warehouse room (11), a rolling shutter door (12) installed at a discharge port of the warehouse room (11), and a chain conveyor (13) installed in the warehouse room (11) and facing the rolling shutter door (12); The alarm unit comprises a first sensor (21) installed at the rolling shutter door (12) for sensing the opening and closing of the rolling shutter door (12), a second sensor (22) installed at the unloading port of the warehouse room (11) for sensing the vehicle, an audible and visual alarm (23) installed at the unloading port of the warehouse room (11), and a controller (24) electrically connected to the first sensor (21), the second sensor (22) and the audible and visual alarm (23), respectively.

2. The vehicle loading and unloading area safety warning device according to claim 1, characterized in that: The first sensor (21) is installed at a predetermined height inside the rolling shutter door (12); the first sensor (21) is a photoelectric sensor, which faces the rolling shutter door (12).

3. The vehicle loading and unloading area safety warning device according to claim 1, characterized in that: A platform (14) is provided at the unloading port, and the second sensor (22) is installed in the middle of the vertical wall of the platform (14), and the second sensor (22) is an ultrasonic sensor.

4. The vehicle loading and unloading area safety warning device according to claim 3, characterized in that: Rubber tires (15) are installed on both sides of the second sensor (22) on the platform (14).

5. The vehicle loading and unloading area safety warning device according to claim 3, characterized in that: The sound and light alarm (23) is installed on the side wall of the unloading port of the warehouse room (11).

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