A safety protection device for unloading waste incineration power plants
By using laser beam detectors and height adjustment mechanisms in the unloading safety protection devices of municipal solid waste incineration power plants, the position of the truck bed can be automatically detected and adjusted, solving the problems of inconvenient height limit bar adjustment and safety hazards, and realizing adaptability detection and safe unloading for garbage trucks of different specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HENGLI NEW ENERGY ENG CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-02
AI Technical Summary
Existing safety protection devices for unloading at municipal solid waste incineration power plants have height restriction bars that require manual adjustment and are prone to damage. They are not suitable for garbage trucks of different sizes and pose a safety hazard if the truck bed is not lowered and the truck enters the road.
The system uses a first laser beam detector and a second laser beam detector to detect the position of the truck bed. Combined with a height adjustment mechanism, the height of the laser detector is automatically adjusted. A buzzer reminds the driver to lower the truck bed. The system is also equipped with a material guiding component and a vibration motor to ensure smooth unloading of the waste.
It enables adaptability testing for garbage trucks of different sizes, avoids the danger of the truck bed entering the road before it is lowered, and improves the safety and practicality of the unloading process.
Smart Images

Figure CN224312819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety protection technology, and in particular to a safety protection device for unloading materials in a municipal solid waste incineration power plant. Background Technology
[0002] Household waste refers to solid waste generated from daily life or activities that provide services for daily life, as well as solid waste that is considered household waste according to laws and regulations. The treatment of household waste often requires the use of garbage trucks to transport the garbage to a waste-to-energy incineration plant for processing. In the past, garbage trucks often drove onto the road without lowering the dump truck after unloading the garbage, causing safety accidents or scattering garbage on the main road. Therefore, it is necessary to install a mechanism that allows the truck to lower the dump truck after it has been tipped over before driving out of the garbage unloading channel and onto the main road.
[0003] A search revealed Chinese Patent Publication No. CN217417493U, which discloses a safety protection device for unloading waste incineration power plants. The device includes a waste storage pit, a first baffle, a parking platform, an unloading mechanism, a height restriction protection mechanism, an anti-slip paint layer, and a limiting mechanism. The waste storage pit has a parking platform in front of it. A first baffle surrounds the top of the waste storage pit. An inlet is located at the end of the first baffle near the parking platform, and the unloading mechanism abuts against the inlet to discharge waste into the waste storage pit. The unloading mechanism includes a fixed plate, a first electric telescopic rod, an inclined plate, and two second baffles. The height restriction protection mechanism is fixedly installed above the parking platform.
[0004] The above solution uses a height restriction bar to remind the driver to lower the truck bed. However, the height of the truck bed varies for different sizes of garbage trucks, so the height of the height restriction bar needs to be manually adjusted, which is troublesome. In addition, the height restriction bar is set in the path of the garbage truck, which is easy to collide with the garbage truck and cause damage. Therefore, it is necessary to design a safety protection device for unloading in municipal solid waste incineration power plants to improve the above problems. Utility Model Content
[0005] In view of the problems existing in the existing technical solutions, the purpose of this utility model is to provide a safety protection device for unloading materials in municipal solid waste incineration power plants.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a safety protection device for unloading materials in a municipal solid waste incineration power plant, comprising a parking platform, side support frames fixedly installed on both sides of the top of the parking platform along the length direction, a movable frame provided inside the side support frame, two sets of first laser beam detectors provided on the side of the two movable frames that are close to each other, a height adjustment mechanism provided between the movable frame and the side support frame for adjusting the longitudinal height of the movable frame, a material guiding component installed on one side of the top of the parking platform, a brake installed on the top of the parking platform near the material guiding component and located between the two side support frames, and a set of second laser beam detectors also installed on the side of the two side support frames away from the material guiding component.
[0007] Preferably, the height adjustment mechanism includes a threaded sleeve fixedly connected to one side of two movable frames that are far apart. The threaded sleeve is vertically arranged in the middle of the movable frame. A lead screw is threadedly connected to the threaded sleeve. A fixed plate is fixedly connected to the middle of the side support frame. The two ends of the lead screw are rotatably connected to the fixed plate and the side support frame, respectively. The top of the lead screw extends to the outside of the side support frame. A drive motor is mounted on the top of one of the side support frames via a motor bracket. The output end of the drive motor is fixedly connected to the top of the lead screw on the side support frame via a coupling.
[0008] Preferably, the height adjustment mechanism further includes guide rods disposed on both sides of the lead screw, the two ends of the guide rods being fixedly connected to the side support frame and the fixed plate respectively, and a guide sleeve that is slidably sleeved on the outside of the guide rods being fixedly connected to the movable frame.
[0009] Preferably, a sprocket is fixedly sleeved at the top of the lead screw, and a chain is sleeved between the two sprockets.
[0010] Preferably, there are two second laser beam detectors, which are respectively installed on the bottom of the two fixed plates.
[0011] Preferably, the material guiding assembly includes a mounting plate and a material guiding platform disposed on the top of the mounting plate. The material guiding platform is inclined. The mounting plate is fixedly connected to the parking platform. Multiple sets of shock absorbers are installed between the mounting plate and the material guiding platform. A vibration motor is installed at the bottom of the material guiding platform.
[0012] Preferably, multiple limiting baffles are fixedly connected to the two side support frames below the fixed plate, and warning strips are fixedly adhered to the limiting baffles.
[0013] Preferably, the top of the parking platform is also fixedly connected to multiple speed bumps, one of which is equipped with a buzzer on its side support frame.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] This invention utilizes a first laser beam detector and a second laser beam detector. The second laser beam detector detects the garbage truck entering and exiting the parking platform, while the first laser beam detector detects the position of the truck bed. A height adjustment mechanism adjusts the height of the two sets of first laser beam detectors to match the position of the garbage truck bed. When the garbage truck leaves, the two sets of first laser beam detectors detect the position of the truck bed, reminding the driver to lower the bed. This prevents the garbage truck from entering the road with the bed still in place, thus improving safety and protecting the vehicle. Furthermore, the height of the first laser beam detector can be adjusted according to the height of the garbage truck, making it suitable for detecting garbage trucks of different sizes and highly practical.
[0016] This utility model features a material guiding component. Garbage dumped by a garbage truck falls onto a guiding platform, which then slides into the garbage pit via an inclined platform. A vibrating motor, in conjunction with a shock absorber, causes the guiding platform to vibrate, facilitating the transport of garbage on the platform. Attached Figure Description
[0017] Figure 1 Schematic diagram of the overall structure of the unloading safety protection device for municipal solid waste incineration power plants Figure 1 ;
[0018] Figure 2 Schematic diagram of the overall structure of the unloading safety protection device for municipal solid waste incineration power plants Figure 2 ;
[0019] Figure 3 This is a schematic diagram of the side support frame and height adjustment mechanism.
[0020] Figure 4 This is a schematic diagram of the material guiding assembly.
[0021] In the diagram: 1. Parking platform; 2. Side support frame; 201. Fixed plate; 3. Moving frame; 4. First laser beam detector; 5. Height adjustment mechanism; 501. Threaded sleeve; 502. Lead screw; 503. Drive motor; 504. Guide sleeve; 505. Guide rod; 506. Sprocket; 507. Chain; 6. Buzzer; 7. Limiting baffle; 8. Material guiding assembly; 801. Mounting plate; 802. Material guiding platform; 803. Shock absorber; 804. Vibration motor; 9. Brake; 10. Speed bump; 11. Second laser beam detector. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] like Figures 1-4As shown, a safety protection device for unloading waste in a municipal solid waste incineration power plant includes a parking platform 1, which is installed at the waste pit of the municipal solid waste incineration power plant. Side support frames 2 are fixedly installed on both sides of the top of the parking platform 1 along its length. A fixed plate 201 is fixedly connected to the middle of the side support frames 2. A movable frame 3 is installed inside the side support frames 2. Two sets of first laser beam detectors 4 are installed on the side of the two movable frames 3 that are close to each other. The two sets of first laser beam detectors 4 are distributed vertically along the longitudinal direction. A height adjustment mechanism 5 is provided between the movable frame 3 and the side support frames 2 to adjust the longitudinal height of the movable frame 3. A side support frame 2 is installed on the top of the parking platform 1. The system is equipped with a material guiding assembly 8, which is located at the garbage pit. A brake 9 is installed near the top of the parking platform 1, close to the material guiding assembly 8, and between the two side support frames 2. A set of second laser beam detectors 11 is also installed on the side of the two side support frames 2 away from the material guiding assembly 8. The second laser beam detectors 11 are horizontal strip structures, and there are two second laser beam detectors 11, which are respectively installed at the bottom of the two fixed plates 201. A buzzer 6 is installed on one of the side support frames 2. The brake 9, the first laser beam detector 4, and the second laser beam detector 11 are all existing technologies, and will not be described in detail here.
[0024] Specifically, in use, the garbage truck reverses into the parking platform 1 and is positioned between the two side support frames 2. The second laser beam detector 11 detects that the garbage truck has entered the area between the two side support frames 2. Then, the height adjustment mechanism 5 adjusts the height of the moving frame 3, thereby moving the two sets of first laser beam detectors 4 to adjust their height. This causes the lower set of first laser beam detectors 4 to move to the garbage truck bed, while the upper set of first laser beam detectors 4 is positioned above the garbage truck bed. At this time, the garbage truck bed is in the lowered state. Then, the garbage truck wheels contact the brake 9 to indicate that the truck is in position. The garbage truck bed tilts, dumping the garbage onto the material guiding assembly 8, which guides and transports it into the garbage pit. Then, the garbage truck drives away from the parking platform 1 and passes through the second laser beam detector again. The device 11 detects that the garbage truck has left the parking platform 1. At this time, the two sets of first laser beam detectors 4 detect the position of the truck bed. When the laser beams of both sets of first laser beam detectors 4 are partially blocked, it indicates that the garbage truck bed is still in the tilting state, and the buzzer 6 sounds an alarm to remind the driver to lower the truck bed. When the upper set of first laser beam detectors 4 has no blocked laser beams, but the lower set of first laser beam detectors 4 has partially blocked laser beams, it indicates that the garbage truck bed is in the lowered state. This avoids the dangerous situation of the garbage truck entering the road with the truck bed not lowered, improves safety, and provides protection for the vehicle. In addition, the height of the first laser beam detectors 4 can be adjusted according to the height of the garbage truck, making it suitable for detecting garbage trucks of different sizes and highly practical.
[0025] In this embodiment, as Figure 2 and Figure 3 As shown, the height adjustment mechanism 5 includes a threaded sleeve 501 fixedly connected to one side of two movable frames 3 away from each other. The threaded sleeve 501 is vertically positioned in the middle of the movable frame 3. A lead screw 502 is threadedly connected to the threaded sleeve 501. The two ends of the lead screw 502 are rotatably connected to the fixed plate 201 and the side support frame 2, respectively. The top ends of the lead screw 502 extend to the outside of the side support frame 2. A drive motor 503 is mounted on the top of one of the side support frames 2 via a motor bracket. The output end of the drive motor 503 is fixedly connected to the top end of the lead screw 502 on the side support frame 2 via a coupling. 5 also includes guide rods 505 disposed on both sides of the lead screw 502. The two ends of the guide rods 505 are fixedly connected to the side support frame 2 and the fixed plate 201 respectively. A guide sleeve 504 is fixedly connected to the movable frame 3 and slidably sleeved on the outside of the guide rod 505. The drive motor 503 drives the lead screw 502 to rotate, causing the threaded sleeve 501 to move along the axial direction of the lead screw 502, thereby realizing the height adjustment of the movable frame 3. During the height adjustment of the movable frame 3, the guide sleeve 504 slides on the outside of the guide rod 505, which plays a limiting and guiding role for the movable frame 3 and improves the stability of the movement of the movable frame 3.
[0026] In this embodiment, as Figure 3 As shown, a sprocket 506 is fixedly sleeved at the top of the lead screw 502, and a chain 507 is sleeved between the two sprockets 506. Through the sprockets 506 and the chain 507, the lead screws 502 on the two side support frames 2 keep rotating synchronously, thereby ensuring that the height of the two moving frames 3 is adjusted synchronously. The chain 507 has a certain height to ensure that the truck bed does not come into contact with or collide with the chain 507 when the truck bed is tilted.
[0027] In this embodiment, as Figure 4 As shown, the material guiding assembly 8 includes a mounting plate 801 and a material guiding platform 802 disposed on the top of the mounting plate 801. The material guiding platform 802 is inclined, and the lower end of the material guiding platform 802 extends into the garbage pit. The mounting plate 801 is fixedly connected to the parking platform 1. Multiple sets of shock absorbers 803 are installed between the mounting plate 801 and the material guiding platform 802. A vibration motor 804 is installed at the bottom of the material guiding platform 802. The garbage dumped by the garbage truck falls onto the material guiding platform 802 and slides into the garbage pit through the inclined material guiding platform 802. The vibration motor 804 works in conjunction with the shock absorbers 803 to make the material guiding platform 802 vibrate, which helps to transport the garbage on the material guiding platform 802. The vibration motor 804 and the shock absorbers 803 are existing technologies, and will not be described in detail here.
[0028] In this embodiment, as Figure 1As shown, multiple limiting baffles 7 are fixedly connected to the two side support frames 2 below the fixed plate 201. Warning strips are fixedly attached to the limiting baffles 7. The limiting baffles 7 and warning strips provide a reference for the garbage truck to reverse, so as to avoid the garbage truck from colliding with the first laser beam detector 4.
[0029] In this embodiment, as Figure 1 As shown, multiple speed bumps 10 are also fixedly connected to the top of the parking platform 1. The speed bumps 10 reduce the speed of the garbage truck, which helps the garbage truck to reach its destination.
[0030] The control method of this utility model is controlled by a controller. The first laser beam detector 4, the second laser beam detector 11, the drive motor 503, the buzzer 6, and the vibration motor 804 are electrically connected to the controller. The control program of the controller can be easily implemented by those skilled in the art through simple programming. Therefore, this utility model will not explain the control method and circuit connection in detail. The power supply of the unloading safety protection device for the municipal solid waste incineration power plant is connected to the plant power through wires, or it can be powered by solar energy equipment.
[0031] Working Principle: During operation, the garbage truck reverses into the parking platform 1 and is positioned between the two side support frames 2. The second laser beam detector 11 detects the garbage truck entering the area between the two side support frames 2. At this time, the drive motor 503 drives the lead screw 502 to rotate, causing the threaded sleeve 501 to move axially along the lead screw 502. This adjusts the height of the moving frame 3, driving the two sets of first laser beam detectors 4 to move and adjust their height. The lower set of first laser beam detectors 4 moves to the garbage truck bed, while the upper set is positioned above the garbage truck bed. The garbage truck travels until the wheels contact the brake 9, indicating the truck is in position. Then, the garbage truck bed tilts, dumping the garbage onto the guide platform 802 of the guiding assembly 8. The garbage slides down the tilted guide platform 802 into the garbage pit. The vibration motor 804, in conjunction with the shock absorber 803, causes the guide platform 802 to vibrate, facilitating the movement of the garbage. After the garbage truck is conveyed on the guide platform 802 and dumped, it drives away from the parking platform 1 and passes through the second laser beam detector 11 again. The second laser beam detector 11 detects that the garbage truck has left the parking platform 1. At this time, the two sets of first laser beam detectors 4 detect the position of the truck bed. When the laser beams of both sets of first laser beam detectors 4 are partially blocked, it indicates that the garbage truck bed is still in the dumping state, and the buzzer 6 sounds an alarm to remind the driver to lower the truck bed. When the upper set of first laser beam detectors 4 has no blocked laser beams, but the lower set of first laser beam detectors 4 has partially blocked laser beams, it indicates that the garbage truck bed is in the lowered state. This avoids the dangerous situation of the garbage truck entering the road with the garbage bed not lowered, improves safety, and provides protection for the vehicle. In addition, the height of the first laser beam detectors 4 can be adjusted according to the height of the garbage truck, making it suitable for detecting garbage trucks of different sizes and highly practical.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A safety protection device for unloading waste in a municipal solid waste incineration power plant, comprising a parking platform (1), characterized in that: Side support frames (2) are fixedly installed on both sides of the top of the parking platform (1) along the length direction. A movable frame (3) is provided inside the side support frame (2). Two sets of first laser beam detectors (4) are provided on the side of the two movable frames (3) that are close to each other. A height adjustment mechanism (5) is provided between the movable frame (3) and the side support frame (2) to adjust the longitudinal height of the movable frame (3). A material guide assembly (8) is installed on one side of the top of the parking platform (1). A brake (9) is installed on the top of the parking platform (1) near the material guide assembly (8) and between the two side support frames (2). A set of second laser beam detectors (11) is also installed on the side of the two side support frames (2) away from the material guide assembly (8).
2. The unloading safety protection device for a municipal solid waste incineration power plant according to claim 1, characterized in that: The height adjustment mechanism (5) includes a threaded sleeve (501) fixedly connected to one side of the two movable frames (3) away from each other. The threaded sleeve (501) is vertically arranged in the middle position of the movable frame (3). A lead screw (502) is threadedly connected to the threaded sleeve (501). A fixed plate (201) is fixedly connected to the middle position of the side support frame (2). The two ends of the lead screw (502) are rotatably connected to the fixed plate (201) and the side support frame (2) respectively. The top of the lead screw (502) extends to the outside of the side support frame (2). A drive motor (503) is installed on the top of one of the side support frames (2) through a motor bracket. The output end of the drive motor (503) is fixedly connected to the top of the lead screw (502) on the side support frame (2) through a coupling.
3. The unloading safety protection device for a municipal solid waste incineration power plant according to claim 2, characterized in that: The height adjustment mechanism (5) further includes guide rods (505) disposed on both sides of the lead screw (502). The two ends of the guide rods (505) are fixedly connected to the side support frame (2) and the fixed plate (201) respectively. The movable frame (3) is fixedly connected to a guide sleeve (504) that is slidably sleeved on the outside of the guide rods (505).
4. The unloading safety protection device for a municipal solid waste incineration power plant according to claim 3, characterized in that: A sprocket (506) is fixedly sleeved at the top of the lead screw (502), and a chain (507) is sleeved between the two sprockets (506).
5. The unloading safety protection device for a municipal solid waste incineration power plant according to claim 2, characterized in that: There are two second laser beam detectors (11), which are respectively installed on the bottom of the two fixed plates (201).
6. The unloading safety protection device for a municipal solid waste incineration power plant according to claim 1, characterized in that: The material guiding assembly (8) includes a mounting plate (801) and a material guiding platform (802) disposed on the top of the mounting plate (801). The material guiding platform (802) is inclined. The mounting plate (801) is fixedly connected to the parking platform (1). Multiple sets of shock absorbers (803) are installed between the mounting plate (801) and the material guiding platform (802). A vibration motor (804) is installed at the bottom of the material guiding platform (802).
7. The unloading safety protection device for a municipal solid waste incineration power plant according to claim 2, characterized in that: Multiple limiting baffles (7) are fixedly connected to the two side support frames (2) below the fixed plate (201), and warning strips are fixedly attached to the limiting baffles (7).
8. The unloading safety protection device for a municipal solid waste incineration power plant according to claim 1, characterized in that: The top of the parking platform (1) is also fixedly connected to multiple speed bumps (10), one of which is equipped with a buzzer (6) on the side support frame (2).