Multi-sensor linkage safety door for air cargo station assembly board

Abstract

The utility model relates to safe door technical field, and disclose a kind of aviation cargo station group board table multi-sensor linkage safety door, the aviation cargo station group board table multi-sensor linkage safety door, including slide, be provided with protection assembly on the slide.The aviation cargo station group board table multi-sensor linkage safety door, by setting protection assembly, when horizontal plate normally drops, if there is no obstacle below, the light beam of the emission end of the opposite emission probe can be continuously received by the receiving end of the opposite emission probe, then continue to close steadily, so that horizontal plate moves to target position, cooperate support, asynchronous motor, rotating lever, gyro wheel, sliding block and slide rail make the limit rod move to the limit hole inside on the limit plate, better limit to horizontal plate, when horizontal plate needs to move upwards, first reverse operation asynchronous motor, limit rod resets using the elastic potential energy of spring recovery deformation;If light beam is blocked by obstacle, warning light flashes and issues alarm sound, and then the safety of safety door body can be improved.

Description

Technical Field

[0001] This utility model relates to the field of security door technology, specifically a multi-sensor linkage security door for an air cargo terminal assembly platform. Background Technology

[0002] In the field of air logistics, the air cargo terminal palletizing platform is the core operating area for cargo collection, distribution, loading and sorting. Its operational efficiency and safety are directly related to the overall flow efficiency of air freight and the safety of personnel and cargo. Due to the large amount of cargo handling, vehicle shuttle and personnel movement during the palletizing platform operation, in order to prevent unauthorized personnel from entering the operating area, prevent collisions between cargo and equipment during the handling process, and ensure the personal safety of the operators, safety protection devices have become an indispensable infrastructure for the air cargo terminal palletizing platform.

[0003] Among them, safety doors, as key equipment for isolation and protection, must have reliable opening and closing control functions, timely safety warning capabilities, and practicality to adapt to the complex operating environment of the assembly platform. The quality of their technical performance plays a vital role in the safe operation of the air cargo terminal assembly platform. Therefore, safety door technology has always been one of the key research and application directions in the field of air cargo terminal security protection.

[0004] However, existing safety doors for air cargo terminal palletizing platforms still have certain shortcomings and cannot fully meet the operational requirements of palletizing platforms. On the one hand, the safety protection mechanisms of most existing safety doors are relatively simple. When the safety door encounters obstacles such as pedestrians or goods during the closing process, it often cannot detect and respond quickly, which can easily lead to accidents such as "person trapping" or "object crushing". In addition, it lacks effective warning and reminder functions and cannot inform surrounding personnel of potential dangers in time. On the other hand, the functionality of existing safety doors is not practical enough. The detection sensors of some safety doors remain in working state for a long time after the safety door is closed, which not only causes unnecessary energy consumption, but also shortens the lifespan of the sensors. In view of this, we propose a multi-sensor linkage safety door for air cargo terminal palletizing platforms. Utility Model Content

[0005] The purpose of this invention is to provide a multi-sensor linkage safety door for an air cargo terminal assembly platform, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A multi-sensor linkage safety door for an air cargo terminal pallet assembly platform includes a slide carriage. A top cover is fixedly mounted on the outer surface of the slide carriage. A servo-reduced stepper motor is fixedly mounted on the outer wall of the top cover. A door hinge is fixedly mounted on the output end of the servo-reduced stepper motor. Both ends of the door hinge are rotatably mounted inside the side wall of the top cover via bearing components. One end of a main door curtain is fixedly connected to the outside of the door hinge. A control box is disposed outside the slide carriage. A protection component is disposed on the slide carriage, the protection component including: A horizontal plate is fixedly installed on the end of the main door curtain away from the door hinge. Both ends of the horizontal plate are slidably installed inside the carriage. A fixing frame is fixedly installed on the outer wall of the bottom end of the carriage. Two sets of fixing frames are provided, and the transmitting end of the through-beam probe and the receiving end of the through-beam probe are fixedly installed on the two sets of fixing frames respectively. A warning light is fixedly installed on the outer wall of the carriage. A bracket is fixedly installed on the carriage. An asynchronous motor is fixedly installed on the bracket. A rotating rod is fixedly installed on the outside of the output shaft of the asynchronous motor. A slide rail is fixedly installed on the bracket. A slider is slidably installed on the slide rail. A roller is rotatably installed on the slider through a bearing. The rotating rod slides against the outside of the roller. A limiting rod is slidably installed inside the bracket. One end of the limiting rod is fixedly connected to the outer wall of the slider. A spring is sleeved on the outside of the limiting rod. The two ends of the spring are fixedly connected to the slider and the outer wall of the bracket, respectively. A limiting plate is fixedly installed on the outer wall of the horizontal plate, and a limiting hole is formed on the limiting plate.

[0007] In a further embodiment, the other end of the limiting rod is fitted inside the limiting hole, allowing the limiting rod to enter the limiting hole.

[0008] In a further embodiment, a transparent curtain is installed inside the main door curtain, which, together with the transparent curtain, allows for better observation of the situation at both ends of the security door.

[0009] In a further embodiment, the slide is also provided with an auxiliary component, which includes a push-button switch. The push-button switch is fixedly installed on the mounting frame and controls the opening and closing of the transmitting end and the receiving end of the through-beam probe.

[0010] In a further embodiment, the bottom end of the limiting plate is provided with an inclined surface, and the vertical movement trajectory of the limiting plate intersects with the push-button switch, so that the limiting plate can be squeezed by the push-button switch.

[0011] In a further embodiment, a side plate is fixedly installed on the outer wall of the carriage, and a multi-axis gimbal is fixedly installed on the side plate. A camera is fixedly installed on the movable end of the multi-axis gimbal to better monitor the area around the security door.

[0012] In a further embodiment, a protective cover is snapped onto the outside of the upper cover. The protective cover is located outside the servo-geared stepper motor and can protect the servo-geared stepper motor.

[0013] Compared with the prior art, this utility model provides a multi-sensor linkage safety door for an air cargo terminal assembly platform, which has the following advantages: 1. This air cargo terminal's multi-sensor linked safety door, to enhance the safety of the door itself, incorporates protective components. First, the control box activates a servo-driven stepper motor, causing the door hinge to rotate and retract the main curtain and transparent curtain carriage. This allows the horizontal panel to slide up and down on the carriage. During normal descent, if there are no obstructions below and the beam from the beam detector's transmitter is continuously received, the door continues to close smoothly. The horizontal panel then moves downwards to the target position, activating an asynchronous motor on the support frame. This causes the rotating rod to rotate, and the curved inner wall of the rotating rod presses against the rollers, causing the slider to... The sliding mechanism moves the limit rod into the limit hole on the limit plate, compressing the spring and thus better limiting the horizontal plate. When the horizontal plate needs to move upward, the asynchronous motor runs in reverse, using the elastic potential energy of the spring to reset the limit rod. If the beam is blocked by an obstacle, the receiver of the beam detector will immediately detect a "signal interruption" and send a command to the control box. First, the descent action is stopped immediately, and then the door hinge is driven to rotate in reverse according to the set program to avoid accidents such as "person trapping" or "object crushing". At the same time, the warning light flashes and an alarm sounds, thereby improving the safety of the safety door body.

[0014] 2. This air cargo terminal assembly platform features a multi-sensor linked safety door. To improve the practicality of the safety door itself, auxiliary components are incorporated. When the horizontal plate moves the limiting plate downwards, the inclined surface of the limiting plate abuts against a push-button switch. The vertical outer wall of the limiting plate presses the push-button switch, automatically shutting off the transmitter and receiver of the through-beam detectors, preventing them from operating for extended periods. A multi-axis pan-tilt unit on the side plate allows the camera to move in multiple axes, providing better monitoring of the area surrounding the safety door. A protective cover further protects the servo-driven stepper motor. In summary, this design enhances the practicality of the safety door itself. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the connection of some parts of the structure of this utility model; Figure 4 This is a schematic diagram of the structural connection of part of this utility model from another perspective; Figure 5 This utility model Figure 4Enlarged structural diagram of region A in the middle; Figure 6 This utility model Figure 4 A magnified structural diagram of region B in the middle.

[0016] Explanation of icon numbers: 1. Carriage; 2. Top cover; 3. Servo-driven stepper motor; 4. Door hinge; 5. Main door curtain; 6. Transparent door curtain; 7. Control box; 8. Protective components; 81. Horizontal plate; 82. Fixing bracket; 83. Through-beam probe transmitter; 84. Through-beam probe receiver; 85. Warning light; 86. Bracket; 87. Asynchronous motor; 88. Rotating rod; 89. Slide rail; 810. Slider; 811. Roller; 812. Limiting rod; 813. Spring; 814. Limiting plate; 815. Limiting hole; 9. Auxiliary components; 91. Push-button switch; 92. Angled surface; 93. Side panel; 94. Multi-axis pan / tilt head; 95. Camera; 96. Protective cover. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0019] Please see Figures 1-6 This utility model provides a technical solution: A multi-sensor linkage safety door for an air cargo terminal assembly platform includes a carriage 1, which has two sets. A top cover 2 is fixedly installed on the top of each carriage 1. A servo-reduced stepper motor 3 is fixedly installed on the outer wall of the top cover 2. A door hinge 4 is fixedly installed at the output end of the servo-reduced stepper motor 3. The two ends of the door hinge 4 are rotatably installed inside the side wall of the top cover 2 through bearing components. One end of the main door curtain 5 is fixedly connected to the outside of the door hinge 4. In addition, a transparent door curtain 6 is installed inside the main door curtain 5. The transparent door curtain 6 allows for better observation of the situation at both ends of the safety door. A control box 7 is installed outside the carriage 1.

[0020] When the multi-sensor linkage safety door of the air cargo terminal assembly platform starts operating, the control box 7 first issues a command to start the servo-reduced stepper motor 3 fixedly installed on the outer wall of the upper cover 2. The output end of the servo-reduced stepper motor 3 drives the door shaft 4 to rotate. Since the door shaft 4 is fixedly connected to one end of the main door curtain 5, the rotation of the door shaft 4 will realize the rolling operation of the main door curtain 5 and the transparent door curtain 6 set inside it.

[0021] In one embodiment of this utility model, a protective component 8 is provided on the slide 1. The protective component 8 includes a horizontal plate 81, which is fixedly installed on the end of the main door curtain 5 away from the door hinge 4. The two ends of the horizontal plate 81 are slidably installed inside the slide 1. A fixing frame 82 is fixedly installed on the outer wall of the bottom end of the slide 1. Two sets of fixing frames 82 are provided, and the transmitting end 83 and the receiving end 84 (also called sensors) of the through-beam probe are respectively fixedly installed on the two sets of fixing frames 82. A warning light 85 is fixedly installed on the outer wall of the slide 1. A bracket 86 is fixedly installed on the slide 1. An asynchronous motor 87 is fixedly installed on the bracket 86. A rotating rod 88 is fixedly installed outside the output shaft of the asynchronous motor 87. A slide rail 89 is fixedly installed, and a slider 810 is slidably installed on the slide rail 89. A roller 811 is rotatably installed on the slider 810 via a bearing. A rotating rod 88 is slidably attached to the outside of the roller 811. A limiting rod 812 is slidably installed inside the bracket 86. One end of the limiting rod 812 is fixedly connected to the outer wall of the slider 810. A spring 813 is sleeved on the outside of the limiting rod 812. The two ends of the spring 813 are fixedly connected to the outer walls of the slider 810 and the bracket 86, respectively. A limiting plate 814 is fixedly installed on the outer wall of the cross plate 81. A limiting hole 815 is opened on the limiting plate 814. In addition, the other end of the limiting rod 812 is sleeved inside the limiting hole 815, so that the limiting rod 812 can enter the limiting hole 815.

[0022] In this embodiment, as the main door curtain 5 rolls up and down, the horizontal plate 81 slides up and down on the slide 1. When the horizontal plate 81 slides down normally on the slide 1 to close the safety door, the two sets of fixed brackets 82 fixedly installed on the bottom outer wall of the slide 1 continuously emit beams from the beam transmitters 83, and the corresponding beam receivers 84 receive the beams in real time. During this process, if there are no obstacles (such as pedestrians, vehicles, goods, pets, etc.) below the safety door, the beam receivers 84 can continuously and stably receive the beams emitted by the beam transmitters 83. At this time, the beam receivers 84 will not send abnormal signals to the control box 7. The control box 7 maintains the original command, and the servo reduction stepper motor 3 continues to drive the door shaft 4 to rotate, so that the horizontal plate 81 moves smoothly downward until it reaches the preset target closing position. When the horizontal plate 81 moves down to the target position, the control box 7 issues a command to start the asynchronous motor 87 (self-locking type) on the bracket 86 fixedly installed on the slide 1. The output shaft of the asynchronous motor 87... The rotating rod 88, which is fixedly mounted externally, rotates. During rotation, the arc-shaped inner wall of the rotating rod 88 slides against the roller 811, which is rotatably mounted on the slider 810 via bearings, and exerts a squeezing force on the roller 811. Since the slider 810 is slidably mounted on the slide rail 89 fixedly mounted on the bracket 86, the slider 810 slides along the slide rail 89 under the squeezing force of the rotating rod 88 on the roller 811. A limit rod 812 is fixedly connected to the outer wall of the slider 810, and the limit rod 812 slides... Installed inside the bracket 86, the sliding of the slider 810 will drive the limiting rod 812 to move synchronously, so that one end of the limiting rod 812 gradually extends into the limiting hole 815 opened on the limiting plate 814 fixedly installed on the outer wall of the horizontal plate 81. At the same time, the spring 813 sleeved on the outside of the limiting rod 812 will be squeezed due to the sliding of the slider 810, and undergo compression deformation. Through the cooperation of the limiting rod 812 and the limiting hole 815, the horizontal plate 81 is stably limited, ensuring that the safety door remains stable in the closed state and will not move arbitrarily.

[0023] When the safety door needs to be opened, i.e., when the horizontal plate 81 needs to move upward, the control box 7 first sends a reverse operation command to the asynchronous motor 87. The asynchronous motor 87 drives the rotating rod 88 to rotate in the reverse direction. The squeezing force of the rotating rod 88 on the roller 811 gradually disappears. At this time, the spring 813, which was previously in a state of compression deformation, begins to recover its deformation and release its elastic potential energy. The elastic force of the spring 813 will push the slider 810 to slide in the reverse direction along the slide rail 89. The slider 810 drives the limit rod 812 to exit from the limit hole 815 of the limit plate 814, releasing the limit on the horizontal plate 81. Subsequently, the control box 7 controls the servo deceleration stepper motor 3 to rotate in the reverse direction, and the horizontal plate 81 slides upward on the slide 1 to realize the opening of the safety door. During the process of the horizontal plate 81 sliding downward to close the safety door, if an obstacle blocks the transmitter end 83 of the through-beam detector and the through-beam detector... The beam between the probe receivers 84 will be immediately detected as a "signal interruption" by the through-beam probe receiver 84. The through-beam probe receiver 84 will transmit the abnormal signal to the control box 7. After receiving the abnormal signal, the control box 7 will react quickly. First, it will send a command to the servo deceleration stepper motor 3 to stop its operation, thereby stopping the descent of the horizontal plate 81 and preventing obstacles from being squeezed. Then, the control box 7 will drive the servo deceleration stepper motor 3 to rotate in the opposite direction according to the preset program, which will drive the door hinge 4 to rotate in the opposite direction, causing the horizontal plate 81 to slide upward to prevent "person-clamping" or "object-crushing" accidents. At the same time, the control box 7 will also activate the warning light 85 fixedly installed on the outer wall of the slide 1. The warning light 85 will flash and sound an alarm to remind the surrounding personnel to pay attention to safety and deal with obstacles in time, further improving the safety of the safety door body.

[0024] In one embodiment of this utility model, the slide 1 is further provided with an auxiliary component 9, which includes a push-button switch 91. The push-button switch 91 is fixedly installed on the fixed frame 82 and controls the opening and closing of the through-beam probe transmitter 83 and through-beam probe receiver 84. In addition, the bottom end of the limiting plate 814 is provided with an inclined surface 92. The vertical movement trajectory of the limiting plate 814 intersects with the push-button switch 91, so that the limiting plate 814 can be squeezed by the push-button switch 91. In addition, a side plate 93 is fixedly installed on the outer wall of the slide 1. A multi-axis gimbal 94 is fixedly installed on the side plate 93, and a camera 95 is fixedly installed on the movable end of the multi-axis gimbal 94 to better monitor the area around the security door. In addition, a protective cover 96 is snapped onto the outside of the top cover 2. The protective cover 96 is located outside the servo-reduced stepper motor 3 and can protect the servo-reduced stepper motor 3.

[0025] In this embodiment, during the downward sliding of the horizontal plate 81 and the limiting plate 814, when the horizontal plate 81 reaches the vicinity of the target closing position, the inclined surface 92 at the bottom of the limiting plate 814 gradually contacts the push-button switch 91 fixedly installed on the fixing frame 82. As the horizontal plate 81 continues to descend, the vertical outer wall of the limiting plate 814 exerts a squeezing effect on the push-button switch 91, causing the push-button switch 91 to be pressed and triggered. Since the push-button switch 91 is electrically connected to the through-beam transmitter 83 and the through-beam receiver 84 and is responsible for controlling their opening and closing, when the push-button switch 91 is pressed, it automatically cuts off the power to the through-beam transmitter 83 and the through-beam receiver 84, causing them to stop working. This avoids the through-beam transmitter 83 and the through-beam receiver 84 from remaining in a working state for a long time after the safety door is closed, reducing unnecessary energy consumption, extending the service life of the equipment, reducing the probability of equipment failure, and improving the practicality of the safety door. When the safety door is opened... When the horizontal plate 81 drives the limiting plate 814 to slide upward, the squeezing effect of the limiting plate 814 on the push-button switch 91 disappears, and the push-button switch 91 automatically resets, re-energizing the transmitter end 83 and receiver end 84 of the through-beam probe, restoring them to their working state, and providing safety detection assurance for the next safety door closing process; the control box 7 can control the operation of the multi-axis gimbal 94, and by controlling the moving end of the multi-axis gimbal 94 to rotate in multiple directions, the camera 95 can achieve multi-axis movement. Under the drive of the multi-axis gimbal 94, the camera 95 can adjust the shooting angle and range, better monitor the area around the safety door in real time, and promptly capture abnormal situations in the surrounding area, providing assurance for the safe operation of the air cargo terminal pallet assembly platform. In addition, the protective cover 96 can effectively block external dust, debris and possible collisions from damaging the servo reduction stepper motor 3, providing good protection for the servo reduction stepper motor 3, and further improving the practicality of the safety door body.

[0026] All electrical components mentioned in this application are electrically connected to the control box 7 and the 220V mains power. The control box 7 is a conventional and known device that can control the servo-reduced stepper motor 3, the through-beam transmitter 83, the through-beam receiver 84, the warning light 85, the asynchronous motor 87, the push-button switch 91, the multi-axis pan-tilt unit 94, and the camera 95. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. The standard parts are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0027] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A multi-sensor linkage safety door for an air cargo terminal assembly platform, comprising a slide (1), a top cover (2) fixedly installed on the top of the slide (1), a servo-reduced stepper motor (3) fixedly installed on the outer wall of the top cover (2), a door hinge (4) fixedly installed at the output end of the servo-reduced stepper motor (3), the two ends of the door hinge (4) being rotatably mounted inside the side wall of the top cover (2) via bearing components, one end of a main door curtain (5) fixedly connected to the outside of the door hinge (4), and a control box (7) provided outside the slide (1), characterized in that: The carriage (1) is provided with a protective component (8), the protective component (8) including: A horizontal plate (81) is fixedly installed on the end of the main door curtain (5) away from the door hinge (4). The two ends of the horizontal plate (81) are slidably installed inside the slide frame (1). A fixing frame (82) is fixedly installed on the outer wall of the bottom end of the slide frame (1). There are two sets of fixing frames (82), and the two sets of fixing frames (82) are respectively fixedly installed with a beam detector transmitter (83) and a beam detector receiver (84). Warning light (85) is fixedly installed on the outer wall of the slide (1). A bracket (86) is fixedly installed on the slide (1). An asynchronous motor (87) is fixedly installed on the bracket (86). A rotating rod (88) is fixedly installed on the outside of the output shaft of the asynchronous motor (87). A slide rail (89) is fixedly installed on the bracket (86). A slider (810) is slidably installed on the slide rail (89). A roller (811) is rotatably installed on the slider (810) through a bearing. The rotating rod (88) slides against the outside of the roller (811). A limiting rod (812) is slidably installed inside the bracket (86). One end of the limiting rod (812) is fixedly connected to the outer wall of the slider (810). A spring (813) is sleeved on the outside of the limiting rod (812). The two ends of the spring (813) are fixedly connected to the slider (810) and the outer wall of the bracket (86) respectively. A limiting plate (814) is fixedly installed on the outer wall of the horizontal plate (81). A limiting hole (815) is opened on the limiting plate (814).

2. The multi-sensor linked security door of the aircraft cargo ramp assembly panel station according to claim 1, wherein: The other end of the limiting rod (812) is fitted inside the limiting hole (815).

3. The multi-sensor linked security door of the aircraft cargo ramp assembly station according to claim 1, wherein: A transparent curtain (6) is installed inside the main curtain (5).

4. The multi-sensor linked security door of the aircraft cargo ramp assembly station according to claim 1, wherein: The slide (1) is also provided with an auxiliary component (9), which includes a push-button switch (91). The push-button switch (91) is fixedly installed on the fixed frame (82). The push-button switch (91) controls the opening and closing of the through-beam transmitter (83) and the through-beam receiver (84).

5. The multi-sensor linked security door of the aircraft cargo ramp assembly station according to claim 4, wherein: The bottom end of the limiting plate (814) is provided with an inclined surface (92), and the vertical movement trajectory of the limiting plate (814) intersects with the push-button switch (91).

6. The multi-sensor linked security door of the aircraft cargo ramp assembly station according to claim 4, wherein: A side plate (93) is fixedly installed on the outer wall of the slide (1). A fixed end of a multi-axis gimbal (94) is fixedly installed on the side plate (93). A camera (95) is fixedly installed on the movable end of the multi-axis gimbal (94).

7. The multi-sensor linked security door of the aircraft cargo ramp assembly station according to claim 4, wherein: The upper cover (2) is externally fitted with a protective cover (96), which is located outside the servo-reduced stepper motor (3).

Images