A horizontal walkway deck missing detection device

Abstract

This utility model discloses a horizontal pedestrian walkway missing step detection device, comprising a truss. A moving area for transporting passengers and waiting areas at both ends of the moving area are arranged above the truss. A drive wheel and a conveying circuit rotating around the drive wheel are arranged within the truss. Continuous steps are evenly arranged on the conveying circuit. When the conveying circuit moves, the steps sequentially leave the waiting area at one end, pass through the moving area, and move to the waiting area at the other end. A countersunk hole is provided on the side of each step. A photosensitive probe is located on one side of the conveying circuit and is connected to a control system for controlling the operation of the conveying circuit. The photosensitive probe is activated when the conveying circuit moves. When the step passes through the waiting area, the countersunk hole is coaxial with the photosensitive probe. This utility model creates a blind zone signal when the step reaches the point where the countersunk hole is coaxial with the photosensitive probe, indicating that the step is not missing. The frequency of the blind zone signal is fixed. A prolonged blind zone indicates a missing step, enabling rapid detection of missing steps and ensuring passenger safety.

Description

Technical Field

[0001] This utility model relates to the field of automatic sidewalk technology, and in particular to a device for detecting missing horizontal sidewalk treads. Background Technology

[0002] Horizontal moving walkways are transportation systems used in airports, large shopping malls and supermarkets, and train stations and docks. They transport passengers horizontally from the boarding area to the corresponding location, thus saving users' physical effort. Passengers move synchronously with the moving walkway by stepping on the pedals. Missing pedals are a serious mechanical failure of moving walkways, referring to one or more pedals failing to install properly, detaching, or breaking during operation, resulting in gaps in the path. This is a high-risk safety hazard, potentially causing passengers to step into empty spaces, fall, or become mechanically jammed, and in severe cases, even causing personal injury or equipment damage. Therefore, detecting missing pedals plays a crucial role in ensuring passenger safety. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to propose a horizontal pedestrian walkway missing step detection device to effectively detect missing steps and ensure passenger safety.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A horizontal pedestrian walkway missing tread detection device includes a truss. A moving area for transporting passengers and waiting areas at both ends of the moving area are arranged above the truss. A drive wheel and a conveyor circuit rotating around the drive wheel are arranged within the truss. Continuous treads are evenly arranged on the conveyor circuit. When the conveyor circuit moves, the treads sequentially leave the waiting area at one end, pass through the moving area, and move to the waiting area at the other end. Countersunk holes are provided on the sides of the treads. A photosensitive probe is disposed on one side of the conveyor circuit and is connected to a control system for controlling the operation of the conveyor circuit. The photosensitive probe is activated when the conveyor circuit moves. When a tread passes through a waiting area, the countersunk hole is coaxial with the photosensitive probe at a certain moment, during which the photosensitive probe cannot sense and forms a brief detection blind zone. When the photosensitive probe detects evenly spaced blind zones, the conveyor circuit operates normally. When a tread is missing, causing the photosensitive probe to detect continuous blind zones, the control system controls the conveyor circuit to stop operating.

[0006] Preferably, the photosensitive probe has at least two components.

[0007] Preferably, the light sensor is located in the waiting area.

[0008] Preferably, the moving area is equipped with a light sensor.

[0009] Preferably, the pedal includes a tread surface for passengers to step on and a connector located inside the tread surface, the connector being arranged along the width direction of the tread surface, and the countersunk hole being located outside the connector.

[0010] Preferably, the waiting area is provided with a comb plate.

[0011] Preferably, a light sensor is provided at the bottom of the truss near the drive wheel.

[0012] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0013] This utility model relates to a horizontal pedestrian walkway missing tread detection device, which includes a truss. Above the truss is a moving area for transporting passengers and waiting areas at both ends of the moving area. Inside the truss are a drive wheel and a conveying circuit that rotates around the drive wheel. Continuous treads are evenly arranged on the conveying circuit. When the conveying circuit moves, the treads sequentially leave the waiting area at one end, pass through the moving area, and move to the waiting area at the other end. Countersunk holes are provided on the sides of the treads. A photosensitive probe is located on one side of the conveying circuit. When a tread reaches the countersunk hole and is coaxial with the photosensitive probe, a blind zone signal is formed, indicating that the tread is not missing. The distance between the sensing holes remains relatively fixed. The photosensitive probe forms a blind zone every other tread. During normal operation, the blind zone signal frequency is fixed. If a blind zone persists for an extended period, it indicates a missing tread. Upon receiving a missing tread signal, the pedestrian walkway immediately stops operating. Maintenance personnel can quickly locate the missing point using the stop signal, ensuring passenger safety and saving maintenance time. Attached Figure Description

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0015] Appendix Figure 1 This is a schematic diagram of the horizontal sidewalk tread missing detection device of this utility model;

[0016] Appendix Figure 2 This is a cross-sectional schematic diagram of the horizontal sidewalk tread missing detection device of this utility model;

[0017] Appendix Figure 3 For the appendix Figure 2 A magnified view of part A;

[0018] Appendix Figure 4 This is a top view of the pedal of the horizontal sidewalk pedal missing detection device of this utility model;

[0019] Appendix Figure 5 This is a side view of the pedal of the horizontal sidewalk pedal missing detection device of this utility model.

[0020] The components are: 1. Truss; 2. Moving area; 3. Waiting area; 4. Drive wheel; 5. Conveying circuit; 6. Pedal; 7. Countersunk hole; 8. Photodetector; 9. Tread surface; 10. Connector; 11. Comb plate; 12. Photodetector. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or may have an intervening component present. When a component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present.

[0023] Furthermore, it should be noted that the directional terms such as left, right, up, and down used in the embodiments of this utility model are only relative concepts or references to the normal use of the product, and should not be considered restrictive. The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] As attached Figure 1 The diagram shows a horizontal pedestrian walkway missing step detection device according to this utility model. It includes a truss 1, with a moving area 2 for transporting passengers and waiting areas 3 located at both ends of the moving area 2 above the truss 1. A comb plate 11 is installed on the waiting areas 3. A drive wheel 4 and a conveying circuit 5 rotating around the drive wheel 4 are installed inside the truss 1. Continuous steps 6 are evenly installed on the conveying circuit 5. When the conveying circuit 5 moves, the steps 6 sequentially leave one waiting area 3 and move through the moving area 2 to the other waiting area 3, thus transporting and transferring passengers. (See attached diagram) Figure 3 As shown, a countersunk hole 7 is machined on the side of the pedal 6. A photosensitive probe 8 is installed on one side of the conveyor circuit 5 and is connected to a control system for controlling the operation of the conveyor circuit 5. The photosensitive probe 8 is activated when the conveyor circuit 5 is in motion. When the pedal 6 passes through the waiting area 3, the countersunk hole 7 is coaxial with the photosensitive probe 8. At this moment, the photosensitive probe 8 cannot sense and forms a brief detection blind zone, indicating that the pedal 6 is not missing. When the photosensitive probe 8 detects a uniformly spaced blind zone, the conveyor circuit 5 operates normally. When the pedal 6 is missing and the photosensitive probe 8 detects a continuous blind zone, the control system controls the conveyor circuit 5 to stop operating and immediately carry out maintenance.

[0025] At least two optical sensors 8 are installed in the waiting area 3. When a missing step 6 is detected, the elevator immediately stops, preventing the missing step from leaving the waiting area 3 and entering the moving area 2 via the transport circuit. This avoids the danger of passengers stepping into the gap from the waiting area 3. Furthermore, optical sensors 8 can be installed in the moving area 2 to simultaneously monitor multiple missing step 6 locations, efficiently locating the missing point and significantly improving passenger safety.

[0026] As attached Figure 4 Appendix Figure 5 As shown, the pedal 6 includes a tread surface 9 for passengers to step on and a connector 10 located inside the tread surface 9. The connector 10 is arranged along the width direction of the tread surface 9. The countersunk holes 7 are machined on the outside of the connector 10. The countersunk holes 7 of multiple pedals 6 form a uniformly spaced blind zone when passing through the same photosensitive probe 8.

[0027] A light sensor 12 is installed at the bottom of the truss 1 near the drive wheel 4 to detect the missing pedal at the slewing end.

[0028] This utility model discloses a horizontal pedestrian walkway missing tread detection device. A countersunk hole is provided on the side of the tread, and a photosensitive probe is used for detection. When the tread moves to the point where the countersunk hole is coaxial with the photosensitive probe, a blind zone signal is formed, indicating that the tread is not missing. The distance between the sensing holes remains relatively fixed. The photosensitive probe forms a blind zone every other tread. When the tread is running normally, the frequency of the blind zone signal is fixed. If the blind zone remains for a long time, it indicates that a tread is missing. Once a missing tread signal is received, the pedestrian walkway immediately stops operating. Maintenance personnel can quickly locate the missing point through the stop signal, improving passenger safety and saving maintenance time.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for detecting missing horizontal sidewalk treads, characterized in that: The system includes a truss, with a moving area for transporting passengers and waiting areas at both ends of the moving area located above the truss. The truss contains drive wheels and a conveyor circuit that rotates around the drive wheels. A continuous series of pedals are evenly spaced along the conveyor circuit. When the conveyor circuit moves, the pedals sequentially leave one waiting area and move through the moving area to the other waiting area. Countersunk holes are provided on the sides of the pedals. A photosensitive probe is positioned on one side of the conveyor circuit and is connected to a control system for controlling the operation of the conveyor circuit. The photosensitive probe is activated when the conveyor circuit moves. When a pedal passes through a waiting area, the countersunk hole is coaxial with the photosensitive probe at a certain moment, during which the photosensitive probe cannot detect, forming a brief detection blind zone. When the photosensitive probe detects evenly spaced blind zones, the conveyor circuit operates normally. When a pedal is missing, causing the photosensitive probe to detect continuous blind zones, the control system stops the conveyor circuit.

2. The horizontal sidewalk tread missing detection device according to claim 1, characterized in that: The optical sensor has at least two sensors.

3. The horizontal sidewalk tread missing detection device according to claim 1, characterized in that: The light sensor is located in the waiting area.

4. The horizontal sidewalk tread missing detection device according to claim 1, characterized in that: The moving area is equipped with a light sensor.

5. The horizontal sidewalk tread missing detection device according to claim 1, characterized in that: The pedal includes a tread surface for passengers to step on and a connector located inside the tread surface. The connector is arranged along the width direction of the tread surface, and the countersunk hole is located outside the connector.

6. The horizontal sidewalk tread missing detection device according to claim 1, characterized in that: The waiting area is equipped with a comb plate.

7. The horizontal sidewalk tread missing detection device according to claim 1, characterized in that: A light sensor is installed at the bottom of the truss near the drive wheel.

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