Warning device for unloading of a refuse bunker
By introducing encoders and detection components into the waste treatment unit, and using a PLC controller to link indicator lights and an interactive touch screen, the problem of disordered operation between garbage trucks and garbage cranes was solved, achieving safe and efficient collaborative operation and reducing equipment damage and manual intervention.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI KANGHENG ENVIRONMENTAL PROTECTION CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-29
AI Technical Summary
In existing waste disposal facilities, garbage truck unloading and garbage crane grabbing operations are independent of each other and lack effective alarm devices. This leads to a strong reliance on manual command, which can easily result in disordered operations, causing garbage crane grabs to be buried by dumped garbage, resulting in equipment damage and corrosion of electrical components.
The system uses an encoder to detect the position of the grab bucket, and combines it with detection components such as a gate anti-smashing radar, infrared detector, and ground induction coil. Through a PLC controller, it links indicator lights and an interactive touch screen to provide warnings for the coordinated operation of garbage trucks and garbage cranes, reducing manual intervention.
It effectively avoids the risk of garbage grab buckets being buried by dumped garbage, reduces manual workload, and improves operational safety and equipment protection.
Smart Images
Figure CN224297972U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste treatment equipment technology, and in particular to a warning device for unloading waste bins. Background Technology
[0002] In the waste management industry, waste storage bins, as core facilities for centralized storage and processing of waste, are typically rectangular pool-shaped structures. Their unloading gates serve as the channels for garbage trucks to dump waste into the bins. Waste cranes, as specialized lifting equipment for waste-to-energy incineration, are used to grab and transfer waste from the bins.
[0003] In current waste disposal facilities, garbage truck unloading and garbage crane loading operations are independent of each other, and there is no mutual alarm device. Garbage truck unloading relies on on-site command by personnel at the unloading platform, who manually determine the timing of unloading.
[0004] However, the current garbage truck unloading method relies heavily on manual command. When the command personnel leave their posts, the garbage trucks lack effective guidance and are prone to disorderly operation at the unloading gate. This can lead to the garbage crane grab bucket being easily buried by the garbage dumped by the garbage truck when it is operating near the unloading gate at a low height, causing mechanical damage to the equipment and failure of electrical components due to corrosion from the garbage liquid. Utility Model Content
[0005] The purpose of this invention is to provide a warning device for unloading waste bins, so as to alleviate the technical problems of disordered operation and the burying of garbage by the grab bucket in the prior art.
[0006] This utility model provides a warning device for unloading garbage bins, comprising: a garbage bin, a unloading door on one side of the garbage bin, a garbage crane spanning the top of the garbage bin, an encoder installed on the garbage crane; a detection component is provided on the outer side of the unloading door along the running trajectory of the garbage truck for detecting the garbage truck, and an indicator light is provided on the outer side bracket of the unloading door;
[0007] The encoder and detection components are connected to the PLC controller via signal lines, and the output signal of the PLC controller is connected to the indicator light; the PLC controller is connected to an interactive touch screen.
[0008] Furthermore, the garbage crane includes a large truck, a small truck, and a grab bucket;
[0009] The large vehicle straddles the long side of the waste bin, while the small vehicle is vertically mounted on the large vehicle, with a grab bucket at the bottom of the small vehicle; encoders are installed at the drive mechanisms of both the large and small vehicles.
[0010] Furthermore, reflective strips are affixed to the wall above the unloading door inside the waste storage compartment and to the large vehicle; photoelectric switches are installed on the brackets of the large and small vehicles facing the reflective strips to detect reflective signals.
[0011] Furthermore, a buzzer is installed on the outer side bracket of the unloading gate, alongside the indicator light, and the buzzer is connected to the PLC controller signal.
[0012] Furthermore, the detection component is a gate anti-smashing radar, which is installed on the side along the garbage truck's running trajectory.
[0013] Furthermore, the detection component is an infrared detector, which is installed on both sides along the garbage truck's running trajectory.
[0014] Furthermore, the detection component is an inductive loop, which is buried in the ground trench along the garbage truck's running trajectory.
[0015] Beneficial effects:
[0016] The warning device for unloading garbage bins provided by this utility model detects the position of the grab bucket by setting an encoder and monitors the garbage truck by a detection component. The warning is realized through the linkage of PLC with indicator lights and interactive touch screen; it effectively avoids the cross-operation of garbage cranes and garbage trucks and avoids the risk of garbage crane grab buckets being buried by dumped garbage;
[0017] Compared to the conventional method where vehicles are directed by personnel on the unloading platform, this invention reduces the amount of manual labor required. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 A schematic diagram of the top structure of a warning device for unloading waste bins provided in an embodiment of this utility model.
[0020] Icons: 1-Garbage bin; 2-Unloading gate; 3-Garbage crane; 301-Large trolley; 302-Small trolley; 4-Encoder; 5-Detection component; 6-Indicator light; 7-PLC controller; 8-Interactive touch screen; 9-Buzzer. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0028] like Figure 1 As shown, the present invention provides a warning device for unloading waste bins, comprising: a waste bin 1, a discharge door 2 on one side of the waste bin 1, a waste crane 3 spanning the top of the waste bin 1, and an encoder 4 installed on the waste crane 3;
[0029] A detection component 5 is installed on the outer side of the unloading gate 2 along the running track of the garbage truck for detecting the garbage truck. An indicator light 6 is installed on the outer side bracket of the unloading gate 2.
[0030] The encoder 4 and the detection component 5 are connected to the PLC controller 7 via signal lines. The output signal of the PLC controller 7 is connected to the indicator light 6. The PLC controller 7 is connected to the interactive touch screen 8.
[0031] Specifically, the trolley of the garbage crane 3 is mounted along the long side track of the garbage bin 1, and the trolley moves along the trolley track (i.e., the short side track of the garbage bin 1). Encoders 4 are installed at the ends of the drive shafts of the trolley and the trolley respectively, and are linked to the drive shafts through gear meshing or couplings to collect the displacement of the trolley along the long side and the displacement of the trolley along the short side in real time. Its signal output terminal is connected to the input module of the PLC controller 7 through a shielded signal line. The detection component 5 is installed horizontally at a distance from the outside of the unloading gate 2 along the trajectory of the garbage truck moving towards the unloading gate 2, and its signal output terminal is also connected through a shielded signal line. Another set of input modules is connected to the PLC controller 7; the indicator light 6 is a red and green LED light group, which is installed on the metal bracket on the right side of the unloading gate 2 (from the perspective of the garbage truck driver). The bracket is 2m to 3m high, and the light group faces the garbage truck parking and waiting area to ensure that the driver can see it clearly within 50 meters. Its power supply is connected to the digital output module of the PLC controller 7 through a relay; the interactive touch screen 8 is embedded in the control panel of the garbage crane 3 operating room and is connected to the communication module of the PLC controller 7 through an Ethernet communication cable to realize bidirectional data transmission.
[0032] The encoder 4 is installed on the drive shaft of the trolley and the trolley, directly associated with the moving parts, and transmits signals with the shielded signal line. It can provide feedback on the two-dimensional coordinates of the grab bucket, providing data support for the PLC controller 7 to determine whether the grab bucket is in the working area near the unloading gate 2, and avoiding false alarms caused by position detection deviation.
[0033] It should be noted that the encoder 4 is a sensor used to measure rotational angle or linear displacement. Its main function is to convert mechanical motion into electrical or digital signals to provide feedback of position, speed or angle information to the control system. This invention uses feedback of position information.
[0034] The installation location and detection range of the detection component 5 can detect approaching garbage trucks in advance and avoid the garbage splash area during unloading, reducing false detections. The connection between the interactive touch screen 8 and the PLC controller 7 allows the garbage crane operator to receive garbage truck approach signals in real time. Even if the driver runs a red light, the grab bucket can be controlled in time to avoid the truck, forming a two-way protection.
[0035] In an embodiment of this utility model, the garbage crane 3 includes a large trolley 301, a small trolley 302, and a grab bucket;
[0036] The large vehicle 301 is straddled on the long side of the garbage bin 1, and the small vehicle 302 is vertically mounted on the large vehicle 301. A grab bucket is installed at the bottom of the small vehicle 302. Encoders 4 are installed at the drive mechanisms of the large vehicle 301 and the small vehicle 302.
[0037] Reflective strips are affixed to the wall above the unloading gate 2 inside the garbage bin 1 and to the large trolley 301 of the garbage crane 2; photoelectric switches are installed on the brackets of the large trolley 301 and the small trolley 302 facing the reflective strips to detect reflective signals.
[0038] On the outer side bracket of the unloading gate 2, a buzzer 9 is arranged side by side with the indicator light 6. The buzzer 9 is connected to the PLC controller 7.
[0039] Specifically, the track of the large trolley 301 is erected along the long side of the waste bin 1, ensuring that the large trolley 301 can drive the small trolley 302 and the grab bucket to move along the long side of the waste bin; the track of the small trolley 302 is erected vertically on the large trolley 301, enabling the small trolley 302 to drive the grab bucket to move along the short side of the waste bin. The vertical lifting and lowering of the grab bucket, in coordination with the horizontal movement of the large and small trolleys, achieves all-round grabbing of waste in the waste bin. Encoders 4 are installed at the drive mechanisms of the large trolley 301 and the small trolley 302 to convert the displacement information of the large and small trolleys into electrical signals in real time and transmit them to the PLC controller 7 to locate the two-dimensional coordinates of the grab bucket and determine whether it is in the working area near the unloading gate 2.
[0040] Reflective strips are affixed to the wall above the unloading gate 2 inside the waste bin 1 and to the trolley 301 of the waste crane 2. Photoelectric switches are also installed on the brackets of the trolley 301 and the auxiliary trolley 302 facing the reflective strips. These photoelectric switches, by detecting the reflective signals, supplement the positioning method of the encoder 4, further confirming whether the grab is within the unloading gate's operating area. The combination of reflective strips and photoelectric switches, as a parallel supplement to the encoder 4, enhances the system's fault tolerance in complex environments (such as in the event of encoder failure).
[0041] On the outer side bracket of the unloading gate 2, a buzzer 9 and an indicator light 6 are arranged side by side and connected to the PLC controller 7. The buzzer 9 can emit intermittent alarms, forming a more comprehensive warning signal in conjunction with the traffic lights. The side-by-side arrangement of the buzzer 9 and the indicator light 6 forms a dual warning of sound and light, which can more effectively remind garbage truck drivers compared to a single traffic light, especially in poor lighting conditions, thus improving the visibility of the warning.
[0042] In one embodiment of this utility model, as an implementation of the detection component 5, the detection component 5 is a gate anti-smashing radar, and the radar is set on the side along the running trajectory of the garbage truck.
[0043] Specifically, the anti-smashing radar for the gate is installed on a bracket outside the unloading gate 2, following the trajectory of the garbage truck as it travels towards the unloading gate. The bracket is 1.2m to 1.5m high, with the radar's transmitting surface facing the direction of the approaching garbage truck to ensure early detection. The radar emits radar waves and receives echoes. When the garbage truck enters the detection range, the echo signal changes, triggering the radar to output a switching signal. This signal is transmitted to the PLC controller 7 via a shielded signal line.
[0044] In one embodiment of the present invention, as another implementation of the detection component 5, the detection component 5 is an infrared detector, which is arranged on both sides along the running track of the garbage truck.
[0045] Specifically, infrared detectors are installed along both sides of the garbage truck's running track, using a through-beam installation: a bracket with a height of 1.2m to 1.5m is fixed on each side of the lane on a symmetrical concrete foundation, with the receiving end and the transmitting end at the same height and on the same horizontal straight line, covering the width of the garbage truck's passage.
[0046] The transmitter continuously emits an infrared beam to the receiver. When the garbage truck drives toward the unloading gate and passes the detector, the vehicle body will block the infrared beam, causing the receiver to be unable to receive the complete beam. At this time, a trigger signal is transmitted to the PLC controller 7 through the signal line to realize the detection of the garbage truck's approach.
[0047] In one embodiment of this utility model, as another implementation of the detection component 5, the detection component 5 is a ground inductive coil, which is buried in a ground trench along the running trajectory of the garbage truck.
[0048] Specifically, the inductive loop is buried in a trench 2 meters from the unloading gate along the garbage truck's running trajectory. Both ends of the loop are led out through conduits and connected to the oscillation circuit module. When there are no garbage trucks in the area where the inductive loop is located, the oscillation circuit composed of the loop and capacitor maintains a stable frequency. When a garbage truck (with a metal body) passes by, the vehicle changes the electromagnetic field around the loop, causing a shift in the oscillation frequency. The circuit module detects this frequency change and outputs an electrical signal, which is transmitted to the PLC controller 7 via a signal line to detect whether the garbage truck has reached the vicinity of the unloading gate.
[0049] Based on the above embodiments, the specific working principle of the warning device for unloading waste bins of this utility model is as follows:
[0050] The encoders 4 on the large trolley 301 and the small trolley 302 provide real-time feedback of their position information to the PLC controller 7, locating the two-dimensional coordinates of the grab bucket within the garbage bin. When the two-dimensional coordinates are near the unloading gate 2, it can be determined that the grab bucket is operating in the unloading gate area. A detection component 5 installed on the outside of the unloading gate 2 triggers a signal to the PLC controller 7 when a garbage truck approaches the unloading gate 2.
[0051] The PLC controller 7 receives the position information of the garbage crane 3 in real time. When it determines that the grab bucket is in the working area of the unloading gate 2, it sends a signal to the indicator light 6 to trigger the red light. When it determines that the grab bucket leaves the working area of the unloading gate, it sends a signal to the indicator light 6 to trigger the green light.
[0052] In addition, if a garbage truck driver runs a red light, when the PLC controller 7 receives a signal from the detection component 5, it sends vehicle approach information to the interactive touch screen 8, and the operator can preemptively operate the garbage crane 3 to leave the unloading gate 2 operating area to avoid the vehicle.
[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A warning device for unloading waste bins, comprising: The waste bin (1) has a discharge door (2) on one side, characterized in that... The top of the garbage bin (1) is equipped with a garbage crane (3), and an encoder (4) is installed on the garbage crane (3). The outer side of the unloading gate (2) is provided with a detection component (5) along the running trajectory of the garbage truck for detecting the garbage truck. An indicator light (6) is provided on the outer side bracket of the unloading gate (2). The encoder (4) and the detection component (5) are connected to a PLC controller (7) via signal lines. The output signal of the PLC controller (7) is connected to the indicator light (6). The PLC controller (7) is connected to an interactive touch screen (8).
2. The warning device for unloading waste bins according to claim 1, characterized in that, The garbage crane (3) includes a large trolley (301), a small trolley (302), and a grab bucket; The large vehicle (301) straddles the long side of the garbage bin (1), and the small vehicle (302) is vertically mounted on the large vehicle (301). The grab bucket is provided at the bottom of the small vehicle (302). The encoder (4) is provided at the drive mechanism of the large vehicle (301) and the small vehicle (302).
3. The warning device for unloading waste bins according to claim 2, characterized in that, Reflective strips are affixed to the wall above the unloading door (2) inside the waste bin (1) and to the large vehicle (301); photoelectric switches are installed on the brackets of the large vehicle (301) and the small vehicle (302) facing the reflective strips to detect reflective signals.
4. The warning device for unloading waste bins according to claim 1, characterized in that, On the outer side bracket of the unloading gate (2), a buzzer (9) is arranged side by side with the indicator light (6), and the buzzer (9) is connected to the PLC controller (7) via signal.
5. The warning device for unloading waste bins according to claim 1, characterized in that, The detection component (5) is a gate anti-smashing radar, which is installed on the side along the garbage truck's running trajectory.
6. The warning device for unloading waste bins according to claim 1, characterized in that, The detection component (5) is an infrared detector, which is set on both sides along the running track of the garbage truck.
7. The warning device for unloading waste bins according to claim 1, characterized in that, The detection component (5) is an inductive loop, which is buried in the ground trench along the running trajectory of the garbage truck.