Conveying device and security system
By introducing a light curtain detection and control module into the roller conveyor, the problem of not being able to stop rotation quickly after foreign objects enter is solved, thereby improving safety and efficiency and ensuring the safety of the conveying device and personnel.
Patent Information
- Application Number
- CN202423228486.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing roller conveyor equipment cannot stop rotating quickly after foreign objects enter the conveying area, posing a safety hazard, especially in security inspection systems where it may cause damage to items and injury to personnel.
The system uses a light curtain area to detect foreign objects and trigger an alarm signal. After receiving the alarm signal, the control module sends a stop signal to the drive component, causing the conveying component to stop rotating quickly. Combined with the timing module, the system delays restarting after the foreign object is removed, ensuring both safety and efficiency.
It effectively shortens the response time, ensures that the conveyor roller can quickly switch to the stop state, avoids damage to items and personnel, and improves safety and security inspection efficiency.
Smart Images
Figure CN223606420U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to conveying, check technical field especially, it relates to a conveying device and security check system. BACKGROUND
[0002] Roller conveying equipment is widely used because of its advantages of stable and reliable operation, convenient maintenance and suitable for conveying heavy objects.
[0003] In the related art, the roller conveying equipment is usually provided with an electric control cabinet, a start button and a stop button are arranged on the electric control cabinet, and the operation of the roller conveying equipment is controlled by manually pressing the buttons. Along the conveying direction of the roller conveying equipment, a plurality of conveying rollers are usually arranged at intervals. If a dangerous factor occurs during the operation of the roller conveying equipment, the roller conveying equipment is stopped by pressing the button, and the response time is long, and the conveying rollers cannot be quickly switched from the rotating state to the stopped state. For example, the roller conveying equipment is used in a security check system, and the tray containing the luggage moves with the plurality of conveying rollers. During the movement, small items may fall into the gap between the conveying rollers. If the conveying rollers do not stop rotating in time, the falling items may collide with the conveying rollers, damaging the conveying rollers and the items. In addition, if a person picks up the falling items, the conveying rollers do not stop rotating in time, which may cause the person to be injured. Therefore, the existing roller conveying equipment has a great safety hazard. SUMMARY
[0004] Therefore, the embodiments of the utility model provide a conveying device and a security check system to solve the problem that the existing conveying device cannot stop rotating quickly after foreign matter enters the conveying area, resulting in a safety hazard.
[0005] In a first aspect, the embodiments of the utility model provide a conveying device, which comprises:
[0006] a mounting frame;
[0007] a conveying component rotatably arranged on the mounting frame and used for conveying articles, the conveying component comprising a plurality of conveying rollers arranged at intervals, and the plurality of conveying rollers forming a conveying surface;
[0008] a driving component configured to drive the conveying component to rotate;
[0009] a safety protection component configured to form a light curtain area on the side of the conveying surface away from the articles, and to trigger an alarm signal when foreign matter enters the light curtain area; and
[0010] a control module communicatively connected to the driving component and the safety protection component;
[0011] The control module is configured to send a shutdown signal to the driving component based on the alarm signal, so that the conveying component is switched from the rotating state to the stopping state.
[0012] According to the embodiment of the utility model, the mounting frame comprises first mounting beams and second mounting beams arranged at intervals.
[0013] One end of the conveying roller is rotationally connected to the first mounting beam, and the other end of the conveying roller is rotationally connected to the second mounting beam.
[0014] The safety protection component comprises:
[0015] The transmitter is arranged on the first mounting beam.
[0016] The receiver is arranged on the second mounting beam, and the transmitter and the receiver are configured to form a light beam between two adjacent conveying rollers.
[0017] The light curtain controller is in communication connection with the receiver and is used for judging whether the alarm signal is triggered or not.
[0018] According to the embodiment of the utility model, the light curtain controller is further used for judging whether the alarm cancellation signal is triggered or not.
[0019] The control module is configured to send a restart signal to the driving component based on the alarm cancellation signal, so that the conveying component is switched from the stopping state to the rotating state.
[0020] According to the embodiment of the utility model, the conveying device further comprises a timing module, which is in communication connection with the light curtain controller and the control module.
[0021] The timing module is used for sending a timing end signal to the control module after the light curtain controller triggers the alarm cancellation signal for a preset time length.
[0022] The control module is configured to send the restart signal to the driving component based on the timing end signal, so that the conveying component is switched from the stopping state to the rotating state.
[0023] According to the embodiment of the utility model, the conveying component comprises a plurality of conveying units arranged in sequence.
[0024] The driving component comprises a plurality of driving units arranged in sequence, and the plurality of driving units correspond to the plurality of conveying units one by one.
[0025] The safety protection component comprises a plurality of light curtain units arranged in sequence, and the plurality of light curtain units correspond to the plurality of conveying units one by one.
[0026] The control module is configured to receive the alarm signal sent by any of the light curtain units, send the shutdown signal to the driving unit corresponding to the light curtain unit, so that the conveying unit corresponding to the driving unit is switched from the rotating state to the stopping state.
[0027] In a second aspect, the utility model discloses an embodiment provides a security check system, comprising:
[0028] Security check equipment is used to carry out safety inspection to luggage;And
[0029] The conveying device is arranged at the entrance of the security check equipment, and is used to convey the tray with luggage to the security check equipment.
[0030] According to the embodiment of the utility model, the security check system further comprises a sorting device arranged at one side of the conveying device.
[0031] The sorting device comprises:
[0032] A tray conveying line is used to convey empty trays.
[0033] A sorting table is arranged above the tray conveying line and is suitable for pushing the tray with luggage to the conveying component of the conveying device.
[0034] The conveying device and the security check system provided by the embodiment of the utility model can at least achieve the following technical effects: the conveying component is used to convey articles, the safety protection component forms a light curtain area below the conveying surface, if foreign matter falls into the light curtain area below the conveying surface, an alarm signal will be triggered, the control module receives the alarm signal and sends a shutdown signal to the driving component, which effectively shortens the response time, so that the conveying roller can be quickly switched from the rotating state to the stopping state, and the safety of the conveying device and personnel is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0035] The above and other objects, features and advantages of the utility model will become more apparent from the following description of the utility model embodiments with reference to the accompanying drawings, in which:
[0036] Figure 1 Fig. 1 schematically shows one of the structural schematic diagrams of the conveying device according to the embodiment of the utility model;
[0037] Figure 2 Fig. 2 schematically shows another of the structural schematic diagrams of the conveying device according to the embodiment of the utility model;
[0038] Figure 3 Fig. 3 schematically shows a third of the structural schematic diagrams of the conveying device according to the embodiment of the utility model;
[0039] Figure 4 Fig. 1 schematically shows a structural schematic diagram of a security inspection system according to an embodiment of the present application;
[0040] Figure 5 Fig. 2 schematically shows a flow schematic diagram of a security inspection method according to an embodiment of the present application;
[0041] Reference signs:
[0042] 100: conveying device; 10: mounting frame; 20: conveying component; 21: conveying roller; 201: first conveying unit; 202: second conveying unit; 203: third conveying unit; 30: safety protection component; 31: transmitter; 32: receiver; 33: light beam; 301: first light curtain unit; 302: second light curtain unit; 303: third light curtain unit;
[0043] 200: security inspection equipment; 300: arrangement device; 310: tray conveying line; 320: arrangement table. DETAILED DESCRIPTION
[0044] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below with reference to the embodiments and the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0045] The terms used herein are only for describing the specific embodiments, and are not intended to limit the present application. The terms "include", "contain" and the like used herein indicate the existence of the described features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.
[0046] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0047] The conveying device 100 of the embodiments of the present application is described below. Figures 1 to 3
[0048] As Figure 1 As shown, the embodiment of the conveying device 100 provided by the utility model includes a mounting frame 10, a conveying component 20, a driving component, a safety protection component 30 and a control module. The conveying component 20 is rotatably arranged on the mounting frame 10 and is used for conveying articles. The conveying component 20 includes a plurality of conveying rollers 21 arranged at intervals, and the plurality of conveying rollers 21 are formed with a conveying surface. The driving component is used for driving the conveying component 20 to rotate. The safety protection component 30 is configured to form a light curtain area on the side of the conveying surface away from the articles, and trigger an alarm signal when a foreign object enters the light curtain area. The control module is in communication connection with the driving component and the safety protection component 30. The control module is configured to send a shutdown signal to the driving component based on the alarm signal, so as to switch the conveying component 20 from a rotating state to a stopped state.
[0049] Exemplarily, the mounting frame 10 is a frame structure, and the mounting frame 10 includes mounting beams and support beams. The length direction of the mounting beams is consistent with the conveying direction, and the two mounting beams are arranged at intervals. The support beams are perpendicular to the mounting beams, and the support beams are mounted at the bottom or the side of the mounting beams. A plurality of support beams are arranged at intervals along the length direction of the mounting beams. The mounting beams and the support beams can be prepared by using profiled pieces, and the profiled pieces include I-shaped steel, channel steel, rectangular steel and the like.
[0050] The conveying component 20 includes a plurality of conveying rollers 21 arranged at intervals. Compared with a conveying belt, the conveying rollers 21 are suitable for conveying heavier articles, and the articles include workpieces, luggage, trays carrying luggage and the like. The number of the conveying rollers 21 is set according to actual requirements, and a gap is formed between adjacent two conveying rollers 21.
[0051] In some embodiments, the driving component includes one driving motor, and the conveying component 20 further includes a plurality of chains. The end of the conveying roller 21 is provided with a sprocket, the chain is sleeved on the sprockets of adjacent two conveying rollers 21, and adjacent two conveying rollers 21 are drivingly connected through the chain. The driving motor is in power connection with one of the conveying rollers 21, and the conveying roller 21 is a driving roller. The driving motor drives the driving roller to rotate, and the synchronous rotation of the plurality of conveying rollers 21 is realized through the chain transmission.
[0052] In some embodiments, the driving component includes two or more driving motors, and the plurality of conveying rollers 21 are driven to rotate synchronously through the plurality of driving motors.
[0053] The conveying component 20 has a conveying surface, that is, a plane where the top profile line of the plurality of conveying rollers 21 is located, and the conveying surface is the surface where the conveying rollers 21 contact the articles.
[0054] The safety protection component 30 is installed in the conveying direction of the conveying component 20, and comprises a transmitter 31 corresponding to one end of the conveying roller 21, a receiver 32 corresponding to the other end of the conveying roller 21, and a light curtain controller. The transmitter 31 is used to emit a plurality of light beams 33, and the receiver 32 receives the light beams 33, so that the plurality of light beams 33 form a light curtain area below the conveying surface. The light curtain area covers a range extending from the first end to the second end of the mounting rack 10 along the length direction of the mounting rack 10, and the two ends of the mounting rack 10 are respectively the first end and the second end. The receiver 32 receives the light beams 33, converts the light signals into electrical signals, and transmits the electrical signals to the light curtain controller. The light curtain controller processes and analyzes the received electrical signals to determine whether the light curtain is blocked. If the light curtain is blocked, an alarm signal is triggered, and the light curtain controller sends the alarm signal.
[0055] It can be understood that the light curtain area is located below the conveying surface, that is, the normal conveying articles on the conveying roller 21 will not enter the position where the light curtain area is located.
[0056] The driving component and the safety protection component 30 are both in communication connection with the control module. The light curtain controller triggers the alarm signal, the control module receives the alarm signal sent by the light curtain controller, and sends a stop signal to the driving component. After receiving the stop signal, the driving motor stops running, so that the plurality of conveying rollers 21 are switched from the rotating state to the stopped state.
[0057] The use of the conveying device 100 in some working scenarios is described below.
[0058] At the airport, the conveying device 100 is used to convey a tray loaded with luggage. The passenger places the luggage in the tray and places the tray loaded with the luggage on the conveying component 20. The tray moves forward with the rotation of the conveying roller 21. Small articles in the tray, such as an ID card, a document belt, etc., may fall from the tray and fall onto the conveying roller 21 or fall into the gap between the conveying rollers 21. The passenger may unconsciously reach out to pick up the fallen articles, which may cause the passenger to be injured or scratched by the conveying roller 21. The fallen articles are defined as foreign objects.
[0059] The light curtain area is located below the conveying surface. If a foreign object falls from the gap between the conveying rollers 21 to the light curtain area, the light curtain is blocked, an alarm signal is triggered, the control module receives the alarm signal sent by the light curtain controller, a stop signal is sent to the driving motor, the driving motor stops running, and the conveying roller 21 is switched from the rotating state to the stopped state. From the triggering of the alarm signal by the falling of the article to the receiving of the stop signal by the driving motor, a quick response can be made, so that the conveying roller 21 can be quickly switched from the rotating state to the stopped state. Before the passenger makes a picking action, the conveying roller 21 has stopped moving, effectively avoiding the passenger from being injured when picking up the fallen articles.
[0060] In addition, if the dropped object is a sharp object, and the conveying roller 21 fails to stop rotating in time, the sharp object may collide with the conveying roller 21, which may be bounced out, thereby damaging the conveying roller 21 and affecting the safety of the surrounding passengers. If a foreign object enters the gap between the conveying rollers 21, an alarm signal is triggered immediately, and the control module sends a stop signal to the driving component, so that the conveying roller 21 stops rotating in time, thereby effectively protecting the conveying component 20 and the safety of passengers.
[0061] On the production line, the conveying device 100 is used for conveying workpieces, the workpieces are placed in the object carrier box, and the object carrier box carrying the workpieces moves forward with the rotation of the conveying roller 21. If a workpiece falls from the object carrier box, an alarm signal is triggered immediately, and the control module sends a stop signal to the driving component, so that the conveying roller 21 stops rotating in time, thereby effectively protecting the conveying component 20 and the safety of the staff.
[0062] In the embodiments of the utility model, the conveying component 20 is used for conveying objects, the safety protection component 30 forms a light curtain area below the conveying surface, if a foreign object falls into the light curtain area below the conveying surface, an alarm signal is triggered, the control module receives the alarm signal and sends a stop signal to the driving component, thereby effectively shortening the response time, so that the conveying roller 21 can be quickly switched from the rotating state to the stopped state, and the safety of the conveying device 100 and the personnel is ensured.
[0063] As shown in Figure 1 and Figure 2 In optional embodiments, the mounting frame 10 includes first and second mounting beams arranged at intervals, one end of the conveying roller 21 is rotationally connected to the first mounting beam, and the other end of the conveying roller 21 is rotationally connected to the second mounting beam. The safety protection component 30 includes a transmitter 31, a receiver 32, and a light curtain controller, the transmitter 31 is arranged on the first mounting beam, the receiver 32 is arranged on the second mounting beam, the transmitter 31 and the receiver 32 are configured to form a light beam 33 between the adjacent two conveying rollers 21, and the light curtain controller is in communication connection with the receiver 32 and is used for judging whether an alarm signal is triggered.
[0064] In some embodiments, the mounting frame 10 includes first and second mounting beams arranged at intervals, and the first and second mounting beams can both be made of profile steel. The conveying component 20 further includes a plurality of bearing seats, and the first and second mounting beams are both provided with the plurality of bearing seats, for example, the mounting beams are made of channel steel, and the bearing seats are arranged on the top surface of the channel steel or the U-shaped groove of the channel steel. One end of the conveying roller 21 is rotationally connected to the bearing seat on the first mounting beam, and the other end of the conveying roller 21 is rotationally connected to the bearing seat on the second mounting beam.
[0065] The safety protection component 30 comprises a transmitter 31, a receiver 32 and a light curtain controller. One of the transmitter 31 and the receiver 32 is installed at the bottom of the first mounting beam, and the other is installed at the bottom of the second mounting beam, so as to form a plurality of light beams 33 between the first mounting beam and the second mounting beam. At least one light beam 33 is formed between two adjacent conveying rollers 21. When a foreign object enters the light curtain between the two conveying rollers 21, the light curtain controller determines that the light curtain is blocked, and triggers an alarm signal.
[0066] It can be understood that the light beam 33 emitted by the transmitter 31 is slightly lower than the conveying surface, so that the foreign object falling to the conveying roller 21 can quickly trigger the alarm signal, while ensuring that the conveyed objects on the conveying roller 21 do not block the light curtain. The conveying component 20 can further comprise a supporting plate located below the plurality of conveying rollers 21, and the transmitter 31 and the receiver 32 are installed between the conveying rollers 21 and the supporting plate. It can be understood that the light beam 33 is located between the conveying surface and the supporting plate. The supporting plate is used to receive the falling objects, and after the objects fall from the gap between the conveying rollers 21, they fall onto the supporting plate, which facilitates the personnel to take the fallen objects.
[0067] The conveying component 20 and the safety protection component 30 are both installed on the first mounting beam and the second mounting beam, which is beneficial to the compactness of the overall structure.
[0068] In an optional embodiment, the light curtain controller is further configured to determine whether to trigger a de-alarm signal. The control module is configured to send a restart signal to the driving component based on the de-alarm signal, so as to switch the conveying component 20 from the stopped state to the rotating state.
[0069] Illustratively, the light curtain controller is further configured to process and analyze the received electrical signals, and after the foreign object is removed, determine that the light curtain is not blocked, and trigger the de-alarm signal.
[0070] After the light curtain controller triggers the alarm signal, the driving motor stops, the conveying roller 21 stops rotating, and the passenger or the staff removes the foreign object that falls to the conveying roller 21. After the foreign object is removed, the light curtain is not blocked, and the light curtain controller determines that the light curtain is not blocked, and triggers the de-alarm signal.
[0071] The light curtain controller sends the de-alarm signal to the control module, and the control module receives the de-alarm signal. The control module sends a restart signal to the driving component. The driving motor receives the restart signal and starts again, and the driving motor switches from the stopped state to the working state, so that the conveying roller 21 continues to rotate and convey the objects.
[0072] In the embodiment of the utility model, after the foreign matter is removed, the staff does not need to restart the driving motor by pressing the switch or the button and the like, the control module sends the restart signal to the driving motor according to the received alarm cancellation signal, and the driving motor starts after receiving the restart signal. After the foreign matter is removed and the dangerous factor is eliminated, the driving motor can quickly switch from the stop state to the working state, which is beneficial to the intelligent operation of the conveying device 100.
[0073] In an optional embodiment, the conveying device 100 further comprises a timing module, which is in communication connection with the light curtain controller and the control module. The timing module is used to send a timing end signal to the control module after the light curtain controller triggers the alarm cancellation signal for a preset time length. The control module is configured to send a restart signal to the driving component based on the timing end signal, so as to switch the conveying component 20 from the stop state to the rotating state.
[0074] Exemplarily, the conveying device 100 further comprises a timing module, which is in communication connection with the light curtain controller and in communication connection with the control module. After the foreign matter at the conveying roller 21 is removed, the timing module starts timing, and after a preset time length, the timing module ends timing. The preset time length is set according to actual needs, and the preset time length can be 2s, 3s, 4s, 5s, etc.
[0075] Specifically, after the foreign matter at the conveying roller 21 is removed, the light curtain is not blocked, the light curtain controller triggers the alarm cancellation signal, the light curtain controller sends the alarm cancellation signal to the timing module, and the timing module starts timing after receiving the alarm cancellation signal. After a preset time length, the timing ends.
[0076] After the timing ends, the timing module sends a timing end signal to the control module, the control module receives the timing end signal, sends a restart signal to the driving motor, and the driving motor starts to drive the conveying roller 21 to rotate, and continues to convey the articles.
[0077] If the foreign matter is removed, the driving motor starts immediately, the hands of the personnel can not be completely removed from the conveying roller 21, and there is still a risk that the personnel is pinched or scratched by the conveying roller 21.
[0078] In the embodiment of the utility model, after the foreign matter is removed, the timing module sends a timing end signal to the control module after a delay of a preset time length, the control module sends a restart signal to the driving motor according to the received timing end signal, so that the driving motor starts with a delay, which is beneficial to further ensuring the safety of the personnel.
[0079] As Figure 3As shown, in an optional embodiment, the conveying component 20 comprises a plurality of conveying units arranged in sequence. The driving component comprises a plurality of driving units arranged in sequence, the plurality of driving units corresponding to the plurality of conveying units one by one. The safety protection component 30 comprises a plurality of light curtain units arranged in sequence, the plurality of light curtain units corresponding to the plurality of conveying units one by one.
[0080] The control module is configured to receive the alarm signal sent by any light curtain unit, send a stop signal to the driving unit corresponding to the light curtain unit, so that the conveying unit corresponding to the driving unit is switched from the rotating state to the stopped state.
[0081] For example, the conveying component 20 comprises a plurality of conveying units arranged in sequence, the number of conveying units being set according to the total length of the conveying component 20, and each conveying unit comprises a plurality of conveying rollers 21 arranged at intervals. The number of conveying rollers 21 in each conveying unit is not specifically limited.
[0082] The driving component comprises a plurality of driving units arranged in sequence, the plurality of driving units corresponding to the plurality of conveying units one by one, and each driving unit comprises at least one driving motor, each driving unit being used to drive the plurality of conveying rollers 21 in the conveying unit corresponding thereto to rotate.
[0083] The safety protection component 30 comprises a plurality of light curtain units arranged in sequence, the plurality of light curtain units corresponding to the plurality of conveying units one by one, and the range of the light curtain area formed by each light curtain unit is adapted to the conveying area of the corresponding conveying unit. That is, a light beam 33 is formed between every two adjacent conveying rollers 21 in each conveying unit. Each light curtain unit comprises a transmitter 31, a receiver 32 and a light curtain controller.
[0084] In an embodiment, the conveying component 20 comprises three conveying units, which are defined as a first conveying unit 201, a second conveying unit 202 and a third conveying unit 203 along the conveying direction of the conveying component 20. The three driving units corresponding to the three conveying units each comprise a driving motor, and the three driving motors are defined as a first driving motor, a second driving motor and a third driving motor. The three light curtain units corresponding to the three conveying units are defined as a first light curtain unit 301, a second light curtain unit 302 and a third light curtain unit 303.
[0085] A plurality of trays carrying luggage are placed on the conveying component 20, and the plurality of trays move forward with the rotation of the plurality of conveying rollers 21. If an article falls from a tray located on the first conveying unit 201, the first light curtain unit 301 sends a first alarm signal to the control module, and the control module receives the first alarm signal and sends a first stop signal to the first driving motor, so that the plurality of conveying rollers 21 in the first conveying unit 201 stop rotating. This ensures that the personnel can safely take out the fallen article from the conveying roller 21.
[0086] After the first conveying unit 201 stops rotating, the plurality of conveying rollers 21 in the second conveying unit 202 and the plurality of conveying rollers 21 in the third conveying unit 203 are still in a rotating state, that is, during the process that the person takes the fallen article at the first conveying unit 201, the tray placed on the second conveying unit 202 and the third conveying unit 203 still moves forward, so that the tray placed on the second conveying unit 202 and the third conveying unit 203 continues to move towards the entrance end of the security inspection equipment.
[0087] In some embodiments, after the fallen article is removed from the first conveying unit 201, the first light curtain unit 301 sends a release alarm signal to the control module, the control module receives the release alarm signal, sends a first restart signal to the first drive motor, the first drive motor receives the first restart signal, and drives the plurality of conveying rollers 21 in the first conveying unit 201 to continue rotating.
[0088] In some embodiments, after the fallen article is removed from the first conveying unit 201, the first light curtain unit 301 sends a release alarm signal to the timing module, the timing module starts timing, and after a preset time period, the timing module sends a release alarm signal to the control module, the control module receives the release alarm signal, sends a first restart signal to the first drive motor, the first drive motor receives the first restart signal, and drives the plurality of conveying rollers 21 in the first conveying unit 201 to continue rotating. After the foreign matter is removed, the first conveying unit 201 delays for a preset time period and continues to rotate, which is beneficial to further ensure the safety of the person.
[0089] In the embodiments of the present application, when one of the plurality of conveying units has the phenomenon of falling articles, the control module controls the corresponding conveying unit to stop rotating, and the remaining conveying units continue to rotate, which ensures the safe removal of foreign matter and does not affect the conveying of other conveying units, thereby ensuring the conveying efficiency.
[0090] As shown in Figure 4 The embodiments of the present application also provide a security inspection system, which comprises a security inspection equipment 200 and a conveying device 100. The security inspection equipment 200 is used for safety inspection of luggage. The conveying device 100 is arranged at the entrance end of the security inspection equipment 200 and is used for conveying a tray with luggage to the security inspection equipment 200.
[0091] Specifically, the security inspection equipment 200 has an entrance end and an exit end, the conveying device 100 is arranged at the entrance end of the security inspection equipment 200, the conveying device 100 is used for conveying a tray with luggage to the entrance end of the security inspection equipment 200, and the security inspection equipment 200 further performs safety inspection on the luggage in the tray. The conveying device 100 can convey multiple trays at the same time, and the structure of the conveying device 100 is as described above.
[0092] The passenger places the tray with luggage on the conveying roller 21, and the tray moves towards the entrance end of the security inspection device 200 along with the rotation of the conveying roller 21. If small items fall from the tray, the light curtain is blocked by the falling foreign matter, triggering an alarm signal, and the light curtain controller sends the alarm signal to the control module, the control module receives the alarm signal and sends a stop signal to the driving motor, and the driving motor stops working after receiving the stop signal, so that the conveying roller 21 stops rotating. The foreign matter falls into the gap between the conveying rollers 21 or enters the gap between the conveying rollers 21, and the driving motor can quickly respond to the alarm signal triggered by the light curtain controller and the stop signal sent by the control module, so that the conveying roller 21 stops rotating in time, avoiding the passenger from being injured by the conveying roller 21 when picking up the fallen items, ensuring the safety of the passenger, and avoiding the foreign matter from colliding with the conveying roller 21, ensuring that the conveying roller 21 is not scratched.
[0093] Further, the foreign matter falls into the gap between the conveying rollers 21 or enters the gap between the conveying rollers 21, and the driving motor stops working according to the received stop signal. After the passenger removes the fallen foreign matter, the light curtain controller triggers a release alarm signal. The timing module receives the release alarm signal and starts timing. After a preset time period, the timing module sends a timing end signal to the control module, the control module receives the timing end signal and sends a restart signal to the driving motor, and the driving motor restarts after receiving the restart signal to drive the conveying roller 21 to continue rotating. The driving motor restarts after a delay, ensuring that the passenger's hand has completely left the conveying roller 21 before the conveying roller 21 starts rotating, which is beneficial to further ensure the safety of the passenger.
[0094] In the embodiment of the utility model, the conveying device 100 conveys the tray with luggage to the security inspection device 200, the light curtain area formed by the safety protection component 30 is blocked by the foreign matter, triggering an alarm signal, the control module receives the alarm signal and sends a stop signal to the driving motor, and the driving motor stops working after receiving the stop signal, so that the conveying roller 21 can quickly switch from the rotating state to the stopped state, effectively avoiding the passenger from being injured or scratched when picking up the fallen items, and avoiding the fallen foreign matter from colliding with the conveying roller 21, ensuring the safety of the passenger and the conveying device 100.
[0095] In the optional example, the conveying component 20 includes a plurality of conveying units, the driving component includes a plurality of driving units, and the safety protection component 30 includes a plurality of light curtain units. The plurality of conveying units, the plurality of driving units and the plurality of light curtain units are arranged one by one. Each driving unit controls the rotation of the plurality of conveying rollers 21 in the conveying unit corresponding thereto. Each light curtain unit is used to detect whether there is foreign matter entering the conveying unit corresponding thereto, and to determine whether to trigger an alarm signal or a release alarm signal.
[0096] As Figure 3As shown, the following describes the conveying process of the conveying device 100 by taking three conveying units, three driving units and three light curtain units as an example.
[0097] The plurality of trays carrying the luggage are placed on the conveying component 20, and the plurality of trays move towards the entrance end of the security inspection equipment 200 along with the rotation of the plurality of conveying rollers 21. If an article falls from the tray located on the first conveying unit 201, the first light curtain unit 301 sends a first alarm signal to the control module, and the control module receives the first alarm signal and sends a first stop signal to the first driving motor, so that the plurality of conveying rollers 21 in the first conveying unit 201 stop rotating. This ensures that the passenger can safely take out the fallen article from the conveying roller 21.
[0098] After the first conveying unit 201 stops rotating, the plurality of conveying rollers 21 in the second conveying unit 202 and the plurality of conveying rollers 21 in the third conveying unit 203 are still in the rotating state, i.e., during the process in which the passenger takes out the fallen article at the first conveying unit 201, the trays placed on the second conveying unit 202 and the third conveying unit 203 still move forward, so that the trays placed on the second conveying unit 202 and the third conveying unit 203 continue to move towards the entrance end of the security inspection equipment 200.
[0099] When the phenomenon of falling articles occurs in one of the plurality of conveying units, the control module controls the corresponding conveying unit to stop rotating, and the remaining conveying units continue to rotate, and the trays placed on the remaining conveying units continue to move, which does not affect the normal conveying of the trays on the other conveying units, thereby ensuring the safety of the passenger when taking out the fallen article and ensuring the security inspection efficiency.
[0100] In an optional embodiment, the security inspection system includes a plurality of conveying devices 100. For example, the security inspection system includes two conveying devices 100, which are defined as a first conveying device and a second conveying device, respectively. The first conveying device is located at the entrance end of the security inspection equipment 200 and is used to convey the luggage to be inspected to the security inspection equipment 200. The second conveying device is located at the exit end of the security inspection equipment 200 and is used to distribute the luggage after the security inspection to different areas. For example, after the security inspection, it is determined that the luggage is safe luggage, the tray carrying the safe luggage moves to the end of the second conveying device, and the passenger takes away the luggage. After the security inspection, it is determined that the luggage is suspicious luggage, the tray carrying the suspicious luggage moves to the transfer station of the second conveying device, and the security personnel transfer the suspicious luggage to the package opening inspection area.
[0101] If any item slips off the tray and falls into the gap between the conveyor rollers 21 during the movement of luggage after security check by the second conveyor device, an alarm signal will be triggered. The drive motor will then receive a stop signal from the control module and stop rotating, so that the conveyor rollers 21 will stop rotating in time, effectively preventing passengers or security personnel from being pinched when picking up the fallen items.
[0102] like Figure 1 , Figure 2 and Figure 3 As shown, in an optional embodiment, the security inspection system further includes a sorting device 300, which is disposed on one side of the conveying device 100. The sorting device 300 includes a tray conveyor line 310 for conveying empty trays. The sorting platform 320 is disposed above the tray conveyor line 310 and is adapted to push trays containing luggage onto the conveying component 20 of the conveying device 100.
[0103] For example, the security inspection system also includes a sorting device 300. Along the width direction of the conveying device 100, the conveying device 100 has opposing first and second sides, and the sorting device 300 is disposed on the first or second side of the conveying device 100.
[0104] The sorting device 300 includes a pallet conveyor line 310 and a sorting table 320, which are arranged vertically in sequence, with the pallet conveyor line 310 located below the sorting table 320. The pallet conveyor line 310 is used to transport empty pallets. The height of the sorting table 320 is adapted to the height of the conveying component 20. Passengers take empty pallets from the pallet conveyor line 310 and place them on the sorting table 320. After placing their luggage on the pallet, they push the pallet with luggage onto the conveyor roller 21 of the conveying component 20. Passengers apply external force to the pallet, pushing it onto the conveyor roller 21 of the conveying component 20. Alternatively, the sorting table 320 is equipped with a pushing mechanism that pushes the pallet onto the conveyor roller 21 of the conveying component 20.
[0105] In this embodiment of the invention, passengers take an empty tray from the tray conveyor line 310, organize their luggage on the sorting table 320, and place the luggage on the tray, which facilitates passenger operation and enhances the passenger's travel experience.
[0106] like Figure 5 As shown in the figure, the security inspection method of the security inspection system provided by the embodiment of this utility model is described below. The security inspection method includes:
[0107] Step 110: Obtain an alarm signal, which is triggered by the safety protection component 30 of the conveyor device 100;
[0108] Step 120: based on the alarm signal, a stop signal is sent to the driving component of the conveying device 100, so that the conveying component 20 of the conveying device 100 is switched from the rotating state to the stopped state.
[0109] The security inspection system is as described above, the conveying component 20 is used for conveying the tray on which the luggage is placed, the driving component is used for driving the conveying component 20 to rotate, and the safety protection component 30 is used for detecting the foreign matter falling to the conveying component 20.
[0110] The object in the tray falls below the conveying surface of the conveying roller 21, the light curtain is blocked by the foreign matter, the alarm signal is triggered, and the light curtain controller sends the alarm signal to the control module. The control module receives the alarm signal and sends a stop signal to the driving component, and the driving motor receives the stop signal and stops, so that the conveying roller 21 stops rotating in time.
[0111] In the embodiment of the utility model, the light curtain controller judges whether the alarm signal is triggered according to whether the light curtain is blocked, if the alarm signal is triggered, the control module receives the alarm signal and sends a stop signal to the driving component, which effectively shortens the response time, so that the conveying roller 21 can be quickly switched from the rotating state to the stopped state, ensuring the safety of the conveying device 100 and the passenger and ensuring the safety of the security inspection process.
[0112] As shown in the optional embodiment, Figure 2 The security inspection method further comprises:
[0113] An alarm cancellation signal is obtained, and the alarm cancellation signal is triggered by the safety protection component 30;
[0114] Based on the alarm cancellation signal, a restart signal is sent to the driving component, so that the conveying component 20 is switched from the stopped state to the rotating state.
[0115] Specifically, after the conveying roller 21 stops rotating and the passenger or the security personnel removes the fallen object, the light curtain is not blocked by the foreign matter, the light curtain controller sends an alarm cancellation signal to the control module, the control module receives the alarm cancellation signal, sends a restart signal to the driving motor, the driving motor receives the restart signal, the driving motor is restarted, the conveying roller 21 is switched from the stopped state to the rotating state, and the conveying of the tray continues.
[0116] In the embodiment of the utility model, the driving motor stops running, and after the foreign matter is removed, the security personnel does not need to manually operate the switch or the button to restart the driving motor, the driving motor starts according to the received restart signal, which is conducive to the rapid start of the driving motor and further conducive to improving the security inspection efficiency.
[0117] As shown in the optional embodiment, Figure 2 Based on the alarm cancellation signal, a restart signal is sent to the driving component, which comprises:
[0118] Based on the alarm cancellation signal, a timing start signal is generated;
[0119] Based on the timing start signal, obtain the timing end signal;
[0120] A restart signal is sent to the drive component based on the timing end signal.
[0121] In some embodiments, after the foreign object is removed from the conveyor roller 21, the light curtain controller sends an alarm cancellation signal to the timing module. The timing module receives the alarm cancellation signal and starts timing. After a preset time, the timing ends, and the timing module sends a timing end signal to the control module. The control module receives the timing end signal and sends a restart signal to the drive motor. The drive motor starts and drives the conveyor roller 21 to rotate.
[0122] Once the foreign object is removed and the light curtain is not obstructed, the alarm signal is triggered. After a preset time, the drive motor restarts. This ensures that the hands of passengers or security personnel have completely left the conveyor roller 21 before the drive motor restarts, effectively preventing injuries from being pinched by the conveyor roller 21 during the process of removing the hands from the conveyor roller 21. This further ensures the safety of passengers and security personnel and improves the security of security checks.
[0123] like Figure 2 As shown, in an optional embodiment, acquiring an alarm signal includes: acquiring an alarm signal sent by any light curtain unit. Sending a stop signal to the drive component of the conveying device 100 includes: sending a stop signal to the drive unit corresponding to the light curtain unit that triggered the alarm signal.
[0124] Acquiring the alarm cancellation signal includes acquiring the alarm cancellation signal sent by any light curtain unit. Sending a restart signal to the drive unit includes sending a restart signal to the drive unit corresponding to the light curtain unit that triggered the alarm cancellation signal.
[0125] In some embodiments, the conveying device 100 includes a plurality of conveying units, a plurality of driving units, and a plurality of light curtain units, wherein the plurality of driving units correspond one-to-one with the plurality of conveying units, and the plurality of light curtain units correspond one-to-one with the plurality of conveying units.
[0126] The multiple conveying units are sequentially named First Conveying Unit 201, Second Conveying Unit 202, Third Conveying Unit 203...Mth Conveying Unit. The multiple driving units are sequentially named First Drive Motor, Second Drive Motor, Third Drive Motor...Mth Drive Motor. The multiple light curtain units are sequentially named First Light Curtain Unit 301, Second Light Curtain Unit 302, Third Light Curtain Unit 303...Mth Light Curtain Unit. M is an integer greater than or equal to 2.
[0127] The multiple trays with luggage placed on the conveying component 20 move towards the entrance end of the security equipment 200 with the rotation of the multiple conveying rollers 21. The items in the tray located on the first conveying unit 201 fall off, and the first light curtain unit 301 sends a first alarm signal to the control module. The control module receives the first alarm signal and sends a first stop signal to the first driving motor, so that the multiple conveying rollers 21 in the first conveying unit 201 stop rotating. The passenger takes out the fallen items, ensuring the safety of the passenger.
[0128] Further, in the process of the passenger taking out the fallen items from the conveying rollers 21, the foreign matter is removed, the light curtain is not blocked by the foreign matter, and the hand of the passenger has not completely left the conveying rollers 21. The first light curtain unit 301 sends a cancel alarm signal to the timing module, and the timing module starts timing. After a preset time period, the timing module sends a timing end signal to the control module, the control module receives the timing end signal, and sends a first restart signal to the first driving motor. The first driving motor receives the first restart signal and drives the multiple conveying rollers 21 in the first conveying unit 201 to continue rotating. Before the conveying rollers 21 rotate again, the hand of the person has completely left the conveying rollers 21, further improving the safety of security check.
[0129] After the first conveying unit 201 stops rotating, the multiple conveying rollers 21 in the second conveying unit 202 and the multiple conveying rollers 21 in the third conveying unit 203 are still in the rotating state, that is, in the process of the passenger taking out the fallen items at the first conveying unit 201, the trays placed on the second conveying unit 202 and the third conveying unit 203 continue to move towards the entrance end of the security equipment 200. This ensures the safety of the passenger when taking out the fallen items, while not affecting the conveying of the trays on other conveying units, ensuring the efficiency of security check.
[0130] In some embodiments, if the tray conveyed on the Nth conveying unit has items falling off, the Nth conveying unit is switched from the rotating state to the stopped state. N is an integer less than M. For example, if the tray conveyed on the second conveying unit 202 has items falling off, the second conveying unit 202 stops rotating. The third conveying unit 203 still rotates at the current target rotating speed, and the control module sends a deceleration signal to the first driving motor, so that the first conveying unit 201 rotates at a low speed less than the target rotating speed. This ensures that, in the process of the passenger taking out the fallen items at the second conveying unit 202, the tray moving towards the second conveying unit 202 from the first conveying unit 201 does not collide with the stationary tray on the second conveying unit 202, avoiding damage to the tray and avoiding the stationary tray being impacted by other trays and then slipping off the conveying rollers 21, which may injure the passenger or the security personnel. This ensures the efficiency of security check, while further ensuring the safety of the security check process.
[0131] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement within the spirit and principle of the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A delivery device characterized by, The conveyor device comprises: a mounting frame; a conveying component rotatably arranged on the mounting frame and configured to convey articles, the conveying component comprising a plurality of conveying rollers arranged at intervals and forming a conveying surface; a driving component configured to drive the conveying component to rotate; a safety protection component configured to form a light curtain area on a side of the conveying surface away from the articles, and trigger an alarm signal when a foreign object enters the light curtain area; and a control module communicatively connected to the driving component and the safety protection component. The control module is configured to send a shutdown signal to the driving component based on the alarm signal, so that the conveying component is switched from a rotating state to a stopped state.
2. The conveyor device of claim 1, wherein the mounting frame comprises a first mounting beam and a second mounting beam arranged at intervals; one end of the conveying roller is rotatably connected to the first mounting beam, and the other end of the conveying roller is rotatably connected to the second mounting beam; the safety protection component comprises: a transmitter arranged on the first mounting beam; a receiver arranged on the second mounting beam, the transmitter and the receiver being configured to form a light beam between two adjacent conveying rollers; and a light curtain controller communicatively connected to the receiver and configured to determine whether the alarm signal is triggered.
3. The conveyor device of claim 2, wherein the light curtain controller is further configured to determine whether a disarm signal is triggered; the control module is configured to send a restart signal to the driving component based on the disarm signal, so that the conveying component is switched from the stopped state to the rotating state.
4. The conveyor device of claim 3, wherein the conveyor device further comprises a timing module communicatively connected to the light curtain controller and the control module; the timing module is configured to send a timing end signal to the control module after the light curtain controller triggers the disarm signal for a preset time period; the control module is configured to send the restart signal to the driving component based on the timing end signal, so that the conveying component is switched from the stopped state to the rotating state.
5. The conveyor device of any one of claims 1-4, wherein the conveying component comprises a plurality of conveying units arranged in sequence; the driving component comprises a plurality of driving units arranged in sequence, each of the driving units corresponding to one of the conveying units; the safety protection component comprises a plurality of light curtain units arranged in sequence, each of the light curtain units corresponding to one of the conveying units; the control module is configured to receive the alarm signal sent by any one of the light curtain units, and send the shutdown signal to the driving unit corresponding to the light curtain unit, so that the conveying unit corresponding to the driving unit is switched from the rotating state to the stopped state. The conveyor device is arranged at an entrance of the security inspection equipment and configured to convey a tray with articles to the security inspection equipment.
6. A security system, characterized by 7. The security screening system of claim 6, wherein, The security inspection system further comprises a sorting device arranged on one side of the conveying device; The sorting device comprises: a tray conveying line for conveying empty trays; and a sorting table arranged above the tray conveying line and adapted to push the tray with the luggage onto the conveying component of the conveying device.