Train discharge port safety protection access control system
By installing components such as gantry frames, winch motors, and safety railings at the train unloading port, and combining them with intelligent control, safety protection at the train unloading port is achieved, solving the safety hazards in traditional mine unloading operations, improving operational safety and efficiency, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional mine unloading areas present dynamic exposure risks, personnel fall risks, and management blind spots, resulting in serious safety hazards.
The system adopts a dual-track mechanism of "physical isolation + intelligent control". By setting up components such as gantry frames, winch motors, safety railings, limit switches and position detection sensors, it achieves safety protection at the train unloading port. It uses audible and visual alarms to remind personnel to evacuate, and controls the raising and lowering of the safety railings through the winch motor to prevent personnel injury.
It improved the safety of the train unloading point, reduced the risk of personal injury, increased operational efficiency, and reduced equipment and labor costs.
Smart Images
Figure CN224082044U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of access control system technology, specifically relating to a safety protection access control system for a train unloading port. Background Technology
[0002] To address the systemic safety deficiencies in traditional mine unloading areas, the original train unloading port protection system suffers from three major technical shortcomings: ① dynamic exposure risk (a 20-30m unprotected zone is created after the train leaves); ② personnel fall risk (a 0.3% probability of instability exists when the instantaneous wind speed reaches 8m / s); ③ management blind spots (traditional warning signs have a visibility distance of less than 15m at night). Based on the concept of inherent safety, this utility model innovatively develops an access control protection system that achieves closed-loop risk management through a dual-track mechanism of "physical isolation + intelligent control". Utility Model Content
[0003] The purpose of this utility model is to provide a safety protection access control system for train unloading ports, so as to improve the inherent safety of train unloading ports and solve potential safety hazards.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A safety access control system for a train unloading port includes a gantry frame installed on one side of the train track. A winch motor is mounted on the top crossbeam of the gantry frame, and safety railings are slidably connected to the columns on both sides. A steel wire rope is fixed to the top of the safety railing, and the other end of the steel wire rope is connected to the winch motor. Limit switches and access controllers are also installed on one column of the gantry frame. The limit switches are divided into upper limit switches and lower limit switches according to their installation positions. The upper limit switches and lower limit switches are respectively connected to the winch motor through the access controller signal. A position detection sensor is also installed on the train track and is connected to the access controller signal. An audible and visual alarm is also connected to the access controller.
[0006] When the train position detection sensor detects the train's arrival, it uploads a signal to the access control system. The audible and visual alarm then sounds and flashes, alerting personnel to evacuate. Simultaneously, the access control system starts the winch motor, and the steel cable connected to the winch raises the safety barrier to the upper limit switch, where it automatically cuts off power. After the train finishes unloading, the access control system reverses the winch motor, and the steel cable lowers the safety barrier to the lower limit switch, where it automatically cuts off power. The audible and visual alarm then stops sounding.
[0007] The advantages of this utility model compared to the prior art are as follows:
[0008] This utility model, through this design, provides safety protection facilities at the train unloading port, making it safer and more reliable for personnel to walk and work at the train unloading port, avoiding personal injury and solving safety hazards;
[0009] The structure of this utility model not only ensures personnel safety and solves safety hazards, but also improves the operational efficiency of train unloading operations, reduces on-site equipment and labor costs, and creates favorable conditions for inherent safety on-site. Attached Figure Description
[0010] Figure 1 This is the main view of the structure of this utility model.
[0011] Figure 2 This is a side view of the present invention.
[0012] In the diagram, 1-safety railing, 2-hoisting motor, 3-gantry frame, 4-wire rope, 5-audible and visual alarm, 6-position detection sensor, 7-access control controller, and 8-limit switch. Detailed Implementation
[0013] The present invention will be further explained below with reference to the accompanying drawings.
[0014] like Figure 1-2 As shown, this utility model discloses a safety protection access control system for a train unloading port, including a gantry frame 3 installed on one side of the train track. A winch motor 2 is installed on the top crossbeam of the gantry frame 3, and safety railings 1 are slidably connected to the columns on both sides. A steel wire rope 4 is fixed to the top of the safety railing 1, and the other end of the steel wire rope 4 is connected to the winch motor 2. Limit switches 8 and access control controllers 7 are also installed on one column of the gantry frame 3. The limit switches 8 are divided into upper limit switches and lower limit switches according to their installation positions. The upper limit switches and lower limit switches are respectively connected to the winch motor 2 through the access control controller 7. A position detection sensor 6 is also installed on the train track. The position detection sensor 6 is connected to the access control controller 7 through a signal. An audible and visual alarm 5 is also connected to the access control controller 7.
[0015] In use, two position detection sensors 6 are installed along the front and rear of the train track according to the length of the unloading port. Both position detection sensors are connected to the access control 7. The access control 7 will only activate when both position detection sensors detect the arrival of the train simultaneously; otherwise, it will not activate. When both position detection sensors 6 detect the arrival of the train simultaneously, they will upload the signal to the access control 7, and the audible and visual alarm 5 will emit an audible and visual signal to remind personnel to evacuate and prepare for unloading. At the same time, the access control 7 will control the winch motor 2 to start, and the steel wire rope 4 connected to the winch motor 2 will raise the safety guardrail 1 to the upper limit switch and automatically cut off the power. After the train has finished unloading, the access control 7 will control the winch motor 2 to reverse, and the steel wire rope 4 connected to the winch motor 2 will lower the safety guardrail 1 to the lower limit switch and automatically cut off the power. Then, the audible and visual alarm 5 will stop alarming.
[0016] During the above-mentioned operation, two position detection sensors are set up to ensure that the train and the unloading port are aligned to avoid misalignment and spillage; upper and lower limit switches are set up to prevent personnel from falling over the tracks when unloading is not in progress and to prevent injury from falling material during unloading.
[0017] All other aspects not described herein use equivalents that achieve the same function / effect in existing technologies, and will not be elaborated further.
Claims
1. A safety protection access control system for a train unloading port, characterized in that, The system includes a gantry frame (3) installed on one side of the train track. A winch motor (2) is installed on the top crossbeam of the gantry frame (3). Safety railings (1) are slidably connected to the columns on both sides. A wire rope (4) is fixed to the top of the safety railing (1). The other end of the wire rope (4) is connected to the winch motor (2). Limit switches (8) and access controllers (7) are also installed on one side column of the gantry frame (3). The limit switches (8) are divided into upper limit switches and lower limit switches according to their installation positions. The upper limit switches and lower limit switches are respectively connected to the winch motor (2) through the access controller (7). A position detection sensor (6) is also installed on the train track. The position detection sensor (6) is connected to the access controller (7) through the signal.
2. The safety protection access control system for a train unloading port as described in claim 1, characterized in that, The access control controller (7) is also connected to an audible and visual alarm (5).