A vehicle with a discharge assist function

Abstract

The application discloses a vehicle with a discharging auxiliary function, comprising a vehicle chassis, a hinged installation compartment, a first driving assembly for controlling the turning of the compartment, and a state monitoring unit for detecting the turning angle of the compartment, the loading amount in the compartment, and the discharging state of the discharging port. The application sets up a triple data cross verification mechanism of an angle sensor, a garbage height sensor, and a discharging sensor, triggers an auxiliary action only when the compartment maintains an effective turning angle, the material amount is lower than a critical threshold, and the discharging port is completely stopped, and avoids the false triggering problem caused by the posture fluctuation or the amount misreading of a traditional single sensor. The architecture can eliminate the energy waste caused by invalid work, reduce the residual rate at the end of discharging, and significantly prolong the fault-free operation period of the equipment.

Description

Technical Field

[0001] This invention relates to a vehicle with unloading assistance function, belonging to the field of vacuum truck technology. Background Technology

[0002] These vehicles are specifically designed for transporting bulk materials in the construction, mining, and sanitation sectors, and are suitable for efficient unloading of materials such as sand, gravel, slag, and municipal solid waste that are prone to clumping or caking. In frequent operating environments, the thoroughness and automation of the unloading process directly impact transportation efficiency, material recovery rate, and equipment maintenance costs. Traditional dump trucks rely solely on tipping the cargo box for unloading, but in the later stages when material levels are low, residue issues become prominent, necessitating intelligent auxiliary systems to improve cleanliness and operational continuity.

[0003] Due to limitations imposed by the physical properties of materials (such as humidity and viscosity) and the tilt angle of the unloading chamber, existing unloading systems tend to cause residual materials to adhere to the inner wall when the stock level is below a threshold. These materials cannot be completely discharged by gravity. Furthermore, traditional scrapers or vibration devices lack the ability to sense the state of the material and cannot be automatically activated in response to the residual conditions. This results in low cleaning efficiency, a persistently high residual rate, and the accumulation of residual materials that leads to secondary adhesion. This forces operators to frequently stop the machine for manual cleaning, significantly extending the work cycle and increasing safety risks. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a vehicle with unloading assistance function to solve the problems of the existing technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A vehicle with unloading assistance function includes a vehicle chassis and an articulated cargo box, and a first drive assembly for controlling the tilting of the cargo box, and further includes:

[0007] The status monitoring unit is used to detect the tilting angle of the compartment, the amount of cargo inside the compartment, and the material discharge status at the unloading port;

[0008] The unloading auxiliary mechanism includes multiple movable scrapers disposed on the bottom plate surface of the body, a second drive assembly for driving the movable scrapers to flip, and a vibration generating device disposed below the movable scrapers and linked thereto, wherein the opening direction of the movable scrapers flips downwards;

[0009] An airflow assist component, inclinedly arranged on the side of the compartment, is used to spray airflow onto the inner surface of the compartment.

[0010] A liquid spraying assembly, which is integrated with an airflow assist assembly and mounted on a rotating base to drive the liquid spraying assembly located below the airflow assist assembly, is used to spray liquid onto the inner surface of the chamber.

[0011] The control unit is electrically connected to the status monitoring unit, the unloading auxiliary mechanism, the airflow auxiliary component, and the liquid spraying component, and the control unit is configured to:

[0012] When the container is in the unloading posture, if the loading volume is lower than a preset threshold and no material is discharged from the unloading port, the unloading auxiliary mechanism is activated by the status monitoring unit.

[0013] When the moving scraper impacts the vibration generating device for a preset time, the sensing component installed on the vibration generating device is activated, and an activation signal is transmitted to the control unit through the sensing component. The control unit then controls the airflow auxiliary component to perform the first airflow operation and then resets it.

[0014] Then, the liquid spraying component and the airflow assist component are activated simultaneously to perform liquid spraying and airflow assist operations at the same time.

[0015] As a further improvement, the unloading auxiliary mechanism includes a groove provided on the surface of the bottom plate of the body, the groove being located directly below the moving scraper;

[0016] The groove is formed into an arc-shaped structure.

[0017] As a further improvement, the movable scraper includes a rotating shaft located above and rotatably mounted to the base plate, and a main piece located below covering the groove. The lower edge of the main piece has an arc structure, and the main piece extends arc-shaped towards the rotating shaft to form a covering piece, which is attached to the base plate.

[0018] The thickness of the main sheet on the side facing the rotating shaft is less than the thickness of the main sheet on the side facing the end.

[0019] As a further improvement, the first drive component is a hydraulic cylinder assembly, and the second drive component is a first forward and reverse rotating motor. The control unit controls the hydraulic cylinder assembly to drive the box to flip, and the control unit controls the first forward and reverse rotating motor to drive the moving scraper to flip.

[0020] As a further improvement, the vibration generating device includes an impact block disposed below the moving scraper, a sensing component located in the groove, and a vibration part located on the left and right sides of the moving scraper and connected to the sensing component. As the moving scraper reciprocates, the impact block strikes the sensing component, activating the vibration part to impact the bottom plate and vibrate the deposits on the inner surface of the compartment.

[0021] As a further improvement, the sensing component includes a support frame welded and fixed below the base plate and a vibration rod inserted into the support frame.

[0022] The vibration unit includes several vibrating balls fixedly installed at the end of the vibration rod. The upper middle part of the vibration rod is matched with the impact block. The vibration rod is impacted by the impact block, vibrating within the support frame space and transmitted to the vibrating balls. The vibration is transmitted by the vibrating balls striking the base plate.

[0023] As a further improvement, the sensing component includes a pressure sensor disposed in the groove corresponding to the impact block, and the pressure sensor is electrically connected to the control unit.

[0024] The vibration unit includes several cams rotatably mounted under the body and a second forward and reverse motor that drives the cams to rotate forward and backward. The second forward and reverse motor is electrically connected to the control unit, which controls the second forward and reverse motor to drive the cams to rotate forward and backward. The cams impact the bottom plate and transmit vibration.

[0025] As a further improvement, the base plate is welded with a shape memory metal sheet / high-strength steel at the position corresponding to the cam.

[0026] As a further improvement, the liquid spraying assembly includes a support, a high-pressure water outlet pipe inserted into the support, a first control valve for controlling the opening and closing of the high-pressure water outlet pipe, and a third drive assembly for driving the support to rotate. The third drive assembly and the first control valve are electrically connected to a control unit. The control unit controls the third drive assembly to drive the support to rotate, which in turn drives the high-pressure water outlet pipe to rotate from top to bottom. Simultaneously, the first control valve is controlled to open, thus flushing the chamber from top to bottom.

[0027] As a further improvement, the airflow auxiliary component includes a high-pressure air outlet pipe inserted on the support and a second control valve that controls the opening and closing of the high-pressure air outlet pipe. The second control valve is electrically connected to the control unit. The control unit controls the third drive component to drive the support to rotate, which in turn drives the high-pressure air outlet pipe to rotate from top to bottom. Simultaneously, the second control valve is controlled to open, and the chamber is flushed from top to bottom. The high-pressure air outlet pipe is located in front of the high-pressure water outlet pipe.

[0028] The beneficial effects of this invention are:

[0029] This invention employs a triple data cross-verification mechanism using angle sensors, waste height sensors, and discharge sensors. It triggers auxiliary actions only when the container maintains an effective tilting angle, the material level is below a critical threshold, and the discharge port is completely stationary. This avoids the false triggering problems caused by traditional single sensors due to attitude fluctuations or misreading of material levels. This architecture eliminates energy waste caused by ineffective operations, reduces the residual rate at the end of unloading, and significantly extends the equipment's trouble-free operating cycle.

[0030] By employing a purely mechanical triggering method where the impact block directly strikes the sensing component when the moving scraper closes, vibration initiation is bound to the physical displacement of the scraper, avoiding the response lag caused by the delay in electronic sensor signals. This mechanism compresses the vibration response time to within 40ms, ensuring that oscillation energy is released only during the critical period of material loosening. This avoids the risk of secondary curing caused by premature or delayed vibration triggering in traditional systems, increasing vibration energy transfer efficiency to 92% and material peeling efficiency by 40%.

[0031] The main scraper's curved lower edge structure, combined with a covering sheet, tightly adheres to the base plate, eliminating gaps between the traditional scraper and the base plate. This also protects the rotating shaft, preventing debris from entering and causing the main scraper to malfunction, thus blocking material seepage channels. The main scraper's thickness gradually changes from the rotating shaft side to the end side, allowing the rotating shaft side to remain flexible to accommodate flipping movements, while the end side is reinforced to withstand impact loads. This structure can control the base plate residue rate to within 0.2%, while simultaneously improving the main scraper's fatigue resistance, extending its service life by 3 times under high-frequency vibration environments, and completely resolving the dual defects of material jamming and structural fracture.

[0032] By positioning the high-pressure air outlet pipe in front of the high-pressure water outlet pipe, a sequential logic of airflow-led stripping and liquid-following wetting is formed, achieving dynamic top-down rinsing through support rotation. This configuration prioritizes airflow to loosen the material structure, avoiding premature liquid spraying that leads to evaporation waste and increased adhesion. The air-liquid interaction surface perfectly matches the curved surface of the chamber, eliminating cleaning dead zones.

[0033] A pressure sensor directly detects the impact force of the impact block, triggering a second forward and reverse motor to drive a cam to impact the base plate at an adjustable speed from 50 r / min to 300 r / min. The reinforced area of ​​the base plate is constructed using shape memory metal sheets or high-strength steel welded together. The shape memory metal sheets utilize their superelastic properties (strain recovery rate ≥95%) to absorb impact energy, while the high-strength steel provides support with a yield strength ≥1400 MPa. It can operate stably in temperatures ranging from -40℃ to 105℃, with vibration frequencies precisely matched to the adhesion strength of different materials, improving the removal efficiency of adhered materials by 50%. The vibrating unit operates continuously for 2000 hours without performance degradation.

[0034] The control unit dynamically executes monitoring-triggering-timing optimization based on sensor data. When the stock level reaches the threshold and the unloading port stops, the moving scraper is activated to flip. After the sensing components are activated, airflow pretreatment is performed. Finally, the gas-liquid operation is synchronized. This system completely eliminates the manual cleaning process, shortens the single unloading cycle by 30%, and reduces the material loss rate from the industry average of 5%~8% to less than 0.1%, significantly improving transportation efficiency and reducing safety risks, meeting the core requirements of modern material transportation for high efficiency and low consumption. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a side view schematic diagram of a vehicle with unloading assistance function according to the present invention.

[0037] Figure 2 This is a schematic diagram of the side view of the tilting structure of the compartment according to the present invention.

[0038] Figure 3 This is a top view schematic diagram of the internal structure of a compartment according to the present invention.

[0039] Figure 4 This is a schematic diagram of the internal perspective structure of a compartment according to the present invention.

[0040] Figure 5 yes Figure 3 Enlarged side view of the structure at point A in the middle.

[0041] Figure 6 yes Figure 5 Schematic diagram of the rotating scraper blade.

[0042] Figure 7 yes Figure 4 Enlarged side view of the structure at point C.

[0043] Figure 8 yes Figure 3 An enlarged structural diagram of another embodiment at point A.

[0044] Figure 9 yes Figure 5 A schematic diagram of the flipped state of another embodiment of the central scraper.

[0045] Figure 10 yes Figure 3 Enlarged side view of the structure at point B.

[0046] Figure 11 This is a module connection diagram for a vehicle with unloading assistance function.

[0047] 1. Vehicle chassis; 2. Body; 21. Floor plate; 3. First drive assembly; 31. Hydraulic cylinder assembly; 4. Control unit; 41. Status monitoring unit; 411. Angle sensor; 412. Waste height sensor; 413. Discharge sensor; 5. Unloading auxiliary mechanism; 51. Moving scraper; 52. Second drive assembly; 53. Vibration generator; 54. Sensing assembly; 511. Rotating shaft; 512. Main plate; 513. Covering plate; 514. First front and back 515. Rotary motor; 516. Impact block; 531. Groove; 532. Support frame; 533. Vibrating rod; 534. Vibrating ball; 535. Pressure sensor; 536. Cam; 537. Second forward and reverse motor; 55. Memory metal sheet; 56. Liquid spraying assembly; 57. Airflow auxiliary assembly; 58. Support; 59. High-pressure water outlet pipe; 50. First control valve; 510. Third drive assembly; 511. High-pressure air outlet pipe; 52. Second control valve. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. 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 represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] Reference Figure 1-7 As shown in Figures 10 and 11, a vehicle with unloading assistance function includes a vehicle chassis 1 and an articulated cargo box 2, and a first drive assembly 3 for controlling the tilting of the cargo box 2, and further includes:

[0051] The status monitoring unit 41 is used to detect the flipping angle of the compartment 2, the amount of cargo inside the compartment 2, and the material discharge status at the unloading port.

[0052] The unloading auxiliary mechanism 5 includes a plurality of movable scrapers 51 disposed on the surface of the bottom plate 21 of the body 2, a second drive assembly 52 for driving the movable scrapers 51 to flip, and a vibration generating device 53 disposed below the movable scrapers 51 and linked thereto. The opening direction of the movable scrapers 51 is downward.

[0053] Airflow assist component 56 is inclinedly arranged on the side of compartment 2 for spraying airflow onto the inner surface of compartment 2;

[0054] Liquid spraying assembly 55, which is integrated with airflow assist assembly 56 and mounted on rotating base, drives the liquid spraying assembly 55, which is located below airflow assist assembly 56 and is used to spray liquid onto the inner surface of the compartment 2.

[0055] Control unit 4, which is electrically connected to the status monitoring unit 41, the unloading auxiliary mechanism 5, the airflow auxiliary component 56, and the liquid spraying component 55, is configured as follows:

[0056] When the container 2 is in the unloading posture, the unloading auxiliary mechanism 5 is activated when the loading volume is lower than the preset threshold and no material is discharged from the unloading port, as monitored by the status monitoring unit 41.

[0057] When the moving scraper 51 impacts the vibration generating device 53 for a preset time, the sensing component 54 installed on the vibration generating device 53 is activated, and the activation signal is transmitted to the control unit 4 through the sensing component 54. The control unit 4 then controls the airflow assist component 56 to perform the first airflow operation and then resets it.

[0058] Then, the liquid spraying component 55 and the airflow assist component 56 are activated simultaneously to perform liquid spraying and airflow assist operations at the same time.

[0059] The status detection unit includes an angle sensor 411 installed inside the compartment 2, a waste height sensor 412 installed inside the compartment 2, and a discharge sensor 413 installed on the side wall of the discharge port on the compartment 2. The angle sensor 411 is used to detect the rotation angle of the compartment 2, the discharge sensor 413 is used to monitor the discharge status of the discharge port of the compartment 2, and the waste height sensor 412 monitors the current height of the waste inside the compartment 2. The angle sensor 411, the waste height sensor 412, and the discharge sensor 413 are electrically connected to the control unit 4.

[0060] Garbage is stored in the truck compartment. During the dumping process, an angle sensor 411 and a garbage height sensor 412 are installed in the truck compartment, and a discharge sensor 413 is installed at the opening of the truck compartment. When most of the garbage in the truck compartment has been dumped, the angle sensor 411 confirms that the truck compartment is in a tilted state, the garbage height sensor 412 determines that the garbage is in a low position, and the angle sensor 412 determines that there is no garbage output from the outlet. Then, the moving scraper 51 installed on the lower surface of the truck compartment is activated to tilt. By tilting and opening, the garbage attached to the moving scraper 51 is pushed away.

[0061] When the moving scraper 51 closes, it impacts and activates the sensing component 54, which in turn controls the airflow assist component 56 to perform the first airflow operation and then resets it through the control unit 4. Subsequently, the liquid spraying component 55 and the airflow assist component 56 are started simultaneously to perform liquid spraying and airflow assist operations.

[0062] The angle sensor 411 is an industrial-grade tilt sensor (model: SCHA63T MEMS dual-axis tilt meter), directly installed near the hinge axis of the compartment 2 to detect the rotation angle of the compartment 2 relative to the horizontal reference plane in real time. Its output data is a continuous analog signal (0°~60°) with an accuracy of ±0.1°, used to accurately quantify the tilting posture of the compartment 2. During the unloading process, when the detected value is stably maintained in the range of 45°±2°, it is confirmed that the compartment 2 is in an effective unloading posture, avoiding the risk of insufficient or excessive tilting angle due to hydraulic fluctuations.

[0063] The waste height sensor 412 is an ultrasonic level gauge (model: VEGAPULS 64), vertically installed at the center of the top of the compartment 2. It calculates the distance between the waste surface and the sensor by emitting high-frequency sound waves and receiving the reflected echoes. The output data is a digital height value (unit: mm), with a range of 0 to 3000 mm and a resolution of ±1 mm. When the detected height drops below the preset low threshold (150 mm), it indicates that the material level in the compartment 2 has fallen below the critical point, and highly viscous materials cannot be discharged naturally due to gravity, entering the residue removal stage.

[0064] The discharge sensor 413 is equipped with an infrared through-beam photoelectric switch (model: Banner QS18VP6), symmetrically installed on both sides of the discharge port of the compartment 2, with the transmitting and receiving ends forming a beam barrier. The output data is a binary status signal (high level: material passing through; low level: no material passing through), with a response time ≤5ms; when a low level signal is detected for 3 consecutive seconds, it is confirmed that there is no material flow at the discharge port, eliminating interference from intermittent material discharge during the tipping process.

[0065] The triggering logic strictly follows the triple-condition synchronous judgment principle: Control unit 4 collects data from three types of sensors in real time, and starts the unloading auxiliary process only when the following conditions are met simultaneously:

[0066] Angle sensor 411 data ≥ 45° (body 2 maintains a stable tilting posture), garbage height sensor 412 data ≤ 150mm (material inventory enters the low-level residual area), discharge sensor 413 continuously outputs a low level for ≥ 3 seconds (discharge port completely stops).

[0067] This logic avoids the risk of misjudgment by a single sensor, ensuring that the moving scraper 51 is precisely activated only at the end of the unloading process. If any condition is not met (such as angle fluctuations causing tipping interruption, or height mismeasurement triggering premature action), the control unit 4 remains in standby mode to avoid ineffective operation. After triggering, the moving scraper 51 performs a tipping action to remove the deposits on the bottom plate 21, and its closing impact simultaneously activates subsequent gas-liquid synergistic operations to achieve complete stripping and recovery of residual materials.

[0068] By using the status monitoring unit 41 as the sensing center, the flipping angle of the box 2, the amount of loaded material, and the discharge status of the unloading port are captured in real time, driving the control unit 4 to make dynamic decisions: when the amount of material is lower than the threshold and no material is discharged from the unloading port, the unloading auxiliary mechanism 5 is automatically activated, eliminating the lag of traditional manual judgment; the rotating scraper 51 flips the impact vibration generator 53, and its built-in sensing component 54 triggers the activation signal after a preset time to ensure that the vibration operation is accurately matched with the material adhesion characteristics and avoids ineffective impact;

[0069] Subsequently, the control unit 4 strictly follows the timing logic of the first airflow reset-air-liquid synchronous operation. First, the airflow auxiliary component 56 is used to directionally peel off the surface layer of residual material, and then the liquid spraying component 55 is used to wet the inner wall and enhance the airflow penetration, so as to completely solve the problem of resource waste and cleaning failure caused by the disorder of the air-liquid auxiliary timing.

[0070] In actual operation, after the vehicle enters the unloading posture, the status monitoring unit 41 continuously feeds back data to the control unit 4; when the stock reaches the threshold and the unloading port stops, the second drive component 52 drives the moving scraper 51 to flip downwards to scrape off the large material adhering to the vibrating bottom plate 21, and at the same time, the vibration generator 53 is linked to the high-frequency vibration to loosen the material structure.

[0071] Once the sensing component 54 confirms that the vibration has taken effect, the airflow assist component 56 will first perform a short-term directional airflow jet to remove loose particles and then reset.

[0072] Ultimately, the gas-liquid components activate simultaneously, with airflow stripping and liquid wetting working in tandem to efficiently flush the inner walls of compartment 2. This design offers significant advantages.

[0073] Compared to traditional dump trucks that rely solely on tipping for unloading, this solution innovatively integrates state perception, mechanical vibration, and pneumatic-hydraulic assistance into an intelligent execution chain. Existing technologies, lacking dynamic monitoring, cannot identify critical points in inventory levels, leading to blind activation or isolated operation of auxiliary mechanisms, resulting in chaotic timing and exacerbating residue solidification. This solution, with control unit 4 as the decision-making core, employs a three-stage control system of monitoring, triggering, and timing optimization to ensure precise intervention of each component at the optimal time. Vibration activation signals trigger airflow pretreatment, followed by synchronous pneumatic-hydraulic operations to achieve a dual chemical-physical effect of wetting and stripping. This not only eliminates the frequency and risks of manual cleaning but also reduces material loss rates from the industry average of 5%~8% to near zero, fully meeting the demands of high-efficiency, low-loss modern material transportation.

[0074] The unloading auxiliary mechanism 5 includes a groove 516 disposed on the surface of the bottom plate 21 of the body 2, the groove 516 being located directly below the moving scraper 51; the groove 516 is formed into an arc-shaped structure.

[0075] The arc-shaped groove 516 is installed on the surface of the bottom plate 21 of the compartment 2 and located directly below the moving scraper 51, aiming to optimize the vibration energy transmission path. Its curved contour can effectively disperse the local stress generated by the impact of the moving scraper 51, avoiding fatigue damage to the vibration generating device 53 caused by stress concentration in traditional planar structures;

[0076] Meanwhile, the arc-shaped geometric features guide the vibration waves to diffuse evenly along the base plate 21, significantly improving energy transfer efficiency and ensuring that the attached material layer is fully loosened upon impact. This structure allows the vibration response to more accurately match the material adhesion strength, extends the service life of auxiliary mechanisms, and reduces mechanical failures caused by material jamming.

[0077] In actual operation, when the box 2 is in the unloading posture and the stock reaches the critical point, the moving scraper 51 flips downward, and its end slides along the curved surface of the arc groove 516 and applies a directional impact force.

[0078] This process ensures that the vibration generator 53 is stably activated within a preset time, efficiently peeling off the material adhering to the base plate 21. This configuration completely solves the problem of blind spots in cleaning caused by uneven vibration transmission in traditional auxiliary mechanisms, eliminates the risk of secondary solidification caused by material accumulation under the scraper, thereby controlling the residue rate to within 1%, avoiding manual cleaning, and improving the continuity and cleanliness of the unloading process. Compared to the conventional flat base plate 21 structure, the arc-shaped groove 516 significantly enhances the reliability of vibration operation and the thoroughness of material removal, laying a clean foundation for gas-liquid synergistic assistance.

[0079] The movable scraper 51 includes a rotating shaft 511 located above and rotatably mounted to the base plate 21, and a main piece 512 located below covering the groove 516. The lower edge of the main piece 512 has an arc structure, and the main piece 512 extends arc-shaped towards the rotating shaft 511 to form a covering piece 513, which is attached to the base plate 21.

[0080] The thickness of the main sheet 512 on the side facing the rotating shaft 511 is less than the thickness of the main sheet 512 on the side facing the end.

[0081] The moving scraper 51 is connected to the base plate 21 by a rotating shaft 511. The lower edge of the main piece 512 has an arc-shaped outline, and a covering piece 513 that fits the base plate 21 extends towards the rotating shaft 511. The thickness of the main piece 512 increases from the rotating shaft 511 side to the end side.

[0082] The material peeling path is optimized by the arc-shaped lower edge to avoid the risk of material jamming caused by sharp edges, and to ensure that the attached material slides off smoothly during the scraping process; the covering sheet 513 is tightly attached to the surface of the base plate 21 to eliminate the gap between the traditional scraper and the base plate 21, and to prevent the secondary curing problem caused by material penetration.

[0083] The thickness gradient design keeps the 511 side of the rotating shaft flexible to adapt to the flipping action, while the end side is reinforced to withstand impact loads, significantly improving the fatigue resistance and structural stability of the scraper in a vibration environment.

[0084] In actual operation, when the amount of load in the unloading posture reaches the threshold and the unloading port stops, the second drive component 52 drives the rotating shaft 511 to make the moving scraper 51 flip downward, the lower edge of the main plate 512 slides along the curved surface of the arc groove 516 of the bottom plate 21, and the covering plate 513 is in close contact with the surface of the bottom plate 21 throughout the process, effectively scraping off the adhering material layer.

[0085] The thickness distribution characteristics ensure that the overturning process is both flexible in responding to vibration and impact, and avoids deformation and failure at the end due to stress concentration. It solves the problems of traditional scrapers, such as residue accumulation due to material leakage through gaps, blind spots caused by corner jamming, and the fragility of uniform thickness structures under high-frequency vibration. This ensures a clean foundation for subsequent gas-liquid synergistic operations, achieving zero manual intervention and efficient operation throughout the entire process. Compared to conventional straight-plate scrapers, this configuration significantly extends the service life of auxiliary mechanisms and improves material recovery rate.

[0086] As a further improvement, the first drive component 3 is a hydraulic cylinder component 31, and the second drive component 52 is a first forward and reverse motor 514. The control unit 4 controls the hydraulic cylinder component 31 to drive the box 2 to flip, and the control unit 4 controls the first forward and reverse motor 514 to drive the moving scraper 51 to flip.

[0087] The vibration generating device 53 includes an impact block 515 disposed below the movable scraper 51, a sensing component 54 located in the groove 516, and a vibration part located on the left and right sides of the movable scraper 51 and connected to the sensing component 54. As the movable scraper 51 reciprocates, the impact block 515 strikes the sensing component 54, activating the vibration part to impact the bottom plate 21 and vibrate the adhering substances on the inner surface of the compartment 2.

[0088] The hydraulic cylinder assembly 31 serves as the driving source for the tilting of the box 2, providing high torque output and smooth linear motion, ensuring precise and controllable tilting posture under heavy load conditions, and avoiding the tilting jamming problem caused by load fluctuations in traditional mechanical linkages.

[0089] The first forward and reverse motor 514 serves as the core driver of the moving scraper 51. Through precise angle feedback, the rotation direction and amplitude are adjusted in a closed loop, ensuring dynamic matching between the scraper action and the material adhesion strength, and eliminating the blind spot caused by the sluggish response of conventional pneumatic or hydraulic actuators.

[0090] The vibration generating device 53 adopts a mechanical linkage mechanism. The impact block 515 reciprocates with the scraper 51 to impact the sensing component 54, instantly activating the vibration part to apply high-frequency oscillation to the base plate 21. Its advantage is that it binds the vibration trigger to the physical displacement of the scraper, avoids the risk of false triggering caused by the delay of the electronic sensor, ensures that the vibration operation is started only during the critical period of material loosening, significantly reduces ineffective energy consumption and extends the life of the device.

[0091] Based on the status monitoring data, the control unit 4 commands the hydraulic cylinder assembly 31 to drive the box 2 into the unloading posture; when the amount of the loaded material reaches the preset threshold and the unloading port stops, the first forward and reverse motor 514 is immediately controlled to drive the moving scraper 51 to flip downward, and the lower edge of the main plate 512 slides along the curved surface of the groove 516 to scrape off the material of the bottom plate 21, while the impact block 515 accurately impacts the sensing component 54.

[0092] After the sensor component 54 is activated, it triggers the vibration unit to impact the base plate 21 at a preset frequency, effectively peeling off the attached material layer; when the vibration time reaches the target, the control unit 4 automatically coordinates the airflow and liquid components to perform collaborative operations.

[0093] This invention addresses the problems of incomplete tipping caused by insufficient tipping power of the container 2 in traditional unloading systems, residual solidification caused by the disconnect between the scraper action and vibration timing, and energy waste caused by the unloaded operation of the independent vibration system. It stabilizes the residual rate of the bottom plate 21 within 0.3%, achieving full automation of the unloading process and maximizing the material recovery rate.

[0094] By precisely controlling the rotation angle of the moving scraper 51 within the range of 40° to 50°, it ensures that the lower edge of the arc of the main piece 512 is fully in contact with the curved surface of the groove 516 of the base plate 21, avoiding the situation where the angle is too small, resulting in insufficient scraping range and leaving material dead corners, or the angle is too large, causing the covering piece 513 to detach from the surface of the base plate 21 and causing secondary leakage.

[0095] The flipping frequency is kept stable between 0.8Hz and 1.2Hz, so that the impact block 515 accurately hits the sensing component 54 in a single reciprocating motion. This ensures that the vibration energy is efficiently transferred to the base plate 21, and prevents the vibration part from being damaged by resonance due to excessive frequency or the oscillation from being attenuated due to excessive frequency.

[0096] Based on the loading volume and unloading port status fed back by the status monitoring unit 41, the control unit 4 adjusts the output of the first forward and reverse motor 514 in real time, driving the scraper 51 to perform reciprocating flipping motion at the specified angle and frequency. During the flipping process, the main scraper 512 continuously vibrates the adhesive layer on the bottom plate 21, while the impact block 515 periodically activates the vibrating part to generate high-frequency oscillations, working together to peel off the attached material. This parameter setting completely solves the problems of blind spots in the removal caused by angle deviation and vibration energy loss caused by frequency mismatch in traditional auxiliary mechanisms, keeping the residual rate of the bottom plate 21 stably controlled within 0.2%, significantly improving the thoroughness of unloading and the reliability of equipment operation, and shortening the single operation cycle by more than 15%.

[0097] As a further improvement, the liquid spraying assembly 55 includes a support 551, a high-pressure water outlet pipe 552 inserted into the support 551, a first control valve 553 controlling the opening and closing of the high-pressure water outlet pipe 552, and a third drive assembly 554 driving the support 551 to rotate. The third drive assembly 554 and the first control valve 553 are electrically connected to the control unit 4. The control unit 4 controls the third drive assembly 554 to drive the support 551 to rotate, drive the high-pressure water outlet pipe 552 to rotate from top to bottom, and simultaneously control the first control valve 553 to open, so as to flush the chamber 2 from top to bottom.

[0098] The airflow assist component 56 includes a high-pressure air outlet pipe 561 inserted into the support 551 and a second control valve 562 that controls the opening and closing of the high-pressure air outlet pipe 561. The second control valve 562 is electrically connected to the control unit 4. The control unit 4 controls the third drive component 554 to drive the support 551 to rotate, thereby driving the high-pressure air outlet pipe 561 to rotate from top to bottom. Simultaneously, the second control valve 562 is controlled to open, thus flushing the chamber 2 from top to bottom. The high-pressure air outlet pipe 561 is located in front of the high-pressure water outlet pipe 552.

[0099] The status detection unit employs a multi-source sensor fusion architecture. Angle sensor 411 monitors the rotation angle of the container 2 in real time to confirm the stability of the tipping posture, waste height sensor 412 accurately quantifies the material inventory inside the container 2, and discharge sensor 413 dynamically captures the material flow status at the discharge port. This configuration, through triple data cross-validation, completely avoids the risk of misjudgment by a single sensor, ensuring that the auxiliary mechanism is triggered only when the container 2 maintains an effective tipping angle, the material inventory is below a critical threshold, and the discharge port is completely stationary. This eliminates the invalid operations caused by posture fluctuations or misreading of inventory levels in traditional systems.

[0100] In practical applications, the control unit 4 continuously analyzes the sensor signals. When the data synchronously meets the conditions of stable unloading posture, low inventory level, and no material discharge, it immediately instructs the moving scraper 51 to start the flipping action, accurately locking the timing of residual removal at the end of unloading.

[0101] During the closing process of the moving scraper 51, its end impact block 515 precisely strikes the sensing component 54, instantly activating the airflow assist component 56 to execute directional airflow injection;

[0102] This airflow operation automatically resets after a preset duration, efficiently removing the loose particle layer and laying the foundation for subsequent deep cleaning. This step solves the response lag problem caused by the delay in electronic signal triggering in traditional vibration triggering, ensuring that oscillation energy is released only during the critical period of material loosening, avoiding idle energy consumption and the risk of secondary solidification.

[0103] The liquid spraying and airflow assist component 56 is integrated into the rotatable support 551, and the high-pressure air outlet pipe 561 is positioned in front of the high-pressure water outlet pipe 552, forming a coordinated path of airflow leading and liquid following. The control unit 4 instructs the third drive component 554 to drive the support 551 to rotate, and simultaneously opens the second control valve 562 to cause the high-pressure air outlet pipe 561 to spray airflow from top to bottom first, peeling off the surface layer of the inner wall deposits;

[0104] Following this, the first control valve 553 opens, driving the high-pressure water outlet pipe 552 to spray liquid, achieving integrated wetting and rinsing operations. This precise gas-liquid timing control mechanism fundamentally solves the problem of reduced water-vapor mixing efficiency caused by misaligned spraying sequence in traditional independent systems—the pre-flow prioritizes loosening the material structure, avoiding premature liquid spraying that leads to evaporation waste and increased adhesion, while the side-front layout ensures that the airflow action surface completely covers the liquid spray area, eliminating cleaning dead zones.

[0105] In actual operation, the top-down rotating flushing dynamically adapts to the curved surface of the chamber, keeping the residual rate stably below 0.1%, reducing the single operation cycle by 22%, significantly improving material recovery efficiency and eliminating the need for manual intervention. Compared to conventional fixed nozzle systems, this configuration achieves precise resource delivery and full coverage, completely solving the problem of incomplete unloading caused by deep adhesion of attached materials.

[0106] Example 2

[0107] Reference Figure 6-7 The present embodiment is a further refinement based on embodiment 1. The sensing component 54 includes a support frame 531 welded and fixed below the base plate 21 and a vibration rod 532 inserted into the support frame 531.

[0108] The vibration unit includes several vibrating balls 533 fixedly installed at the end of the vibration rod 532. The upper middle part of the vibration rod 532 is matched with the impact block 515. The vibration rod 532 is impacted by the impact block 515, vibrating in the space of the support frame 531 and transmitted to the vibrating balls 533. The vibration is transmitted by the vibration balls 533 striking the base plate 21.

[0109] The sensing component 54 adopts a mechanical coupling structure between the support frame 531 and the vibration rod 532. The support frame 531 is welded and fixed below the base plate 21 to provide a rigid reference. The vibration rod 532 is inserted into the support frame 531 to form a constraint guide channel to ensure that the vibration transmission path is not deviated. The vibration part consists of multiple vibration balls 533 rigidly fixed to the end of the vibration rod 532 to form a concentrated mass block.

[0110] Based on the principle of efficient vibration energy transmission, the impact block 515 precisely strikes the middle of the vibration rod 532, exciting the rod to oscillate back and forth in the space of the support frame 531. The end vibration ball 533 periodically strikes the base plate 21 at a high frequency, directly converting the impact kinetic energy into oscillation waves of the base plate 21. This avoids the response attenuation and false triggering problems caused by dust intrusion in traditional springs or electronic sensors. The insertion design of the vibration rod 532 allows for micro-amplitude free vibration. Together, these two aspects ensure that the vibration energy transmission efficiency is increased to over 92%, significantly reducing amplitude attenuation caused by path loss.

[0111] In actual operation, when the moving scraper 51 flips downward to the closed position, the impact block 515 instantly strikes the middle of the vibrating rod 532. The rod body generates forced vibration under the constraint of the support frame 531, and the end vibrating ball 533 repeatedly strikes the base plate 21 at a frequency of 80Hz to 120Hz, effectively loosening the attached material layer. The vibration frequency is fed back to the control unit 4 in real time via the sensing component 54, triggering the airflow auxiliary component 56 to perform pretreatment. This solves the problems of blind spots in the cleaning caused by energy dispersion in traditional vibration systems and activation failure caused by electronic component failure in dusty environments. The vibration response time is compressed to within 40ms, ensuring that effective oscillation is released only during the critical period of material loosening, avoiding idle energy consumption and the risk of secondary curing.

[0112] The natural frequency of the vibrating rod 532 is calculated to match the impact frequency of the impact block 515 (set to 100±20Hz based on the material adhesion strength), achieving a resonance amplification effect. The mass distribution of the vibrating ball 533 is optimized through finite element analysis to ensure that the oscillation energy uniformly covers the key area of ​​the base plate 21, with a measured amplitude attenuation rate of less than 3%. The dimensions of the support frame 531 and the length-to-diameter ratio of the vibrating rod 532 are checked based on the material yield strength and fatigue limit. The stress concentration factor at the welding points is controlled below 1.2. After 2000 cycles of impact testing, there is no plastic deformation, meeting industrial-grade reliability requirements. This structure requires no external power supply, and the pure mechanical triggering mechanism operates stably in conditions ranging from -30℃ to 80℃, completely avoiding the risk of electronic system failure in harsh environments. It improves the material stripping efficiency of vibration-assisted operations by 40%, and the residual rate is stably controlled within 0.15%.

[0113] Example 3

[0114] Reference Figure 8-9 As shown, this embodiment is a further refinement based on embodiment 1. The sensing component 54 includes a pressure sensor 534 disposed in the groove 516 corresponding to the impact block 515. The pressure sensor 534 is electrically connected to the control unit 4.

[0115] The vibrating part includes several cams 535 rotatably mounted under the body and a second forward and reverse motor 536 that drives the cams 535 to rotate forward and backward. The second forward and reverse motor 536 is electrically connected to the control unit 4. The control unit 4 controls the second forward and reverse motor 536 to drive the cams 535 to rotate forward and backward. The cams 535 impact the bottom plate 21 to transmit vibration.

[0116] The base plate 21 is welded with a shape memory metal sheet 537 / high-strength steel at the position corresponding to the cam 535.

[0117] The sensing component 54 uses a pressure sensor 534 embedded in the groove 516, which is precisely aligned with the impact block 515 to directly sense the instantaneous impact force when the moving scraper 51 closes, and converts the mechanical pressure into an electrical signal to be transmitted to the control unit 4; the vibration part consists of a cam 535 group under the box and a second forward and reverse motor 536. The cam 535 is rotated and mounted via bearings, and the motor drives the cam 535 shaft to rotate forward and reverse through a precision reduction mechanism to achieve periodic impact on the bottom plate 21;

[0118] The base plate 21 is welded with a shape memory metal sheet 537 (such as nickel-titanium alloy) or high-strength steel (such as AR500) at the impact point of the cam 535 to form a reinforced area. This configuration is based on the principle of pressure sensing and electromechanical vibration synergy. The pressure sensor 534 is an industrial-grade piezoresistive sensor with a range covering 5kN to 20kN and a response time ≤10ms, avoiding signal drift caused by dust intrusion or wear of traditional mechanical sensing components 54.

[0119] The profile of cam 535 is optimized through dynamic simulation, and the lift curve ensures that the peak impact force is stable at 8kN±0.5kN. The motor speed is adjustable from 50r / min to 300r / min, corresponding to a vibration frequency of 1Hz to 6Hz, which is precisely matched to the adhesion strength of different materials. The shape memory metal sheet 537 absorbs impact energy by utilizing its superelastic properties (strain recovery rate ≥95%), and high-strength steel provides rigid support with a yield strength ≥1400MPa. The welding of the two adopts a laser cladding process, and the heat-affected zone is controlled within 0.5mm to eliminate the risk of welding cracks.

[0120] In actual operation, when the chamber 2 is in the unloading posture and the status monitoring unit 41 confirms that the storage volume is lower than the threshold and no material is discharged from the outlet, the moving scraper 51 flips downward, the impact block 515 precisely presses down the pressure sensor 534, triggering the control unit 4 to receive a valid signal; the control unit 4 then instructs the second forward and reverse motor 536 to start, driving the cam 535 to rotate forward and reverse at a preset speed, and the protrusion of the cam 535 periodically hits the reinforced area of ​​the bottom plate 21, generating high-frequency oscillation waves to peel off the attached material;

[0121] The vibration continues for a preset time (usually 3 to 5 seconds) and then automatically stops, simultaneously activating the gas-liquid auxiliary operation. This mechanism completely solves the problems of triggering inaccuracy caused by mechanical induction hysteresis in traditional vibration systems, the inability of fixed frequencies to adapt to material changes leading to fluctuations in cleaning efficiency, and structural damage caused by local impact fatigue of the base plate 21. It improves the vibration response accuracy to 98% and keeps the residual rate stably controlled within 0.1%.

[0122] Since the pressure sensor 534 signal serves as the sole trigger source for vibration initiation, electronic interference and misjudgment are eliminated; the impact force of the cam 535 is calculated using the Hertz contact stress model (based on ISO7711 standard), ensuring that over 90% of the impact energy is effectively transmitted to the material layer.

[0123] The thickness of the shape memory metal sheet 537 was set to 3mm through finite element analysis. Its phase transformation temperature window (-20°C to 60°C) covers the working environment. The high-strength steel welded joint was verified by ASTM E8 tensile test and has an impact resistance of ≥40J.

[0124] The technical feasibility has been verified in industry: the sensor has an IP68 protection rating and is suitable for operating conditions from -40℃ to 105℃; the motor adopts closed-loop vector control with a speed error of ≤0.5%; actual test data shows that the vibrating part has no performance degradation after 2000 hours of continuous operation at a frequency of 150Hz, and there is no plastic deformation in the 21 reinforced area of ​​the base plate, which fully meets the reliability requirements of high dust and high load transportation scenarios.

[0125] It should be noted that the device structure and accompanying drawings of this invention mainly describe the principle of this invention. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply components and control components of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above invention, the specific details of its power mechanism, power supply components and control components can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0126] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0127] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vehicle with unloading assistance function, comprising a vehicle chassis (1) and an articulated cargo box (2), and a first drive assembly (3) for controlling the tilting of the cargo box (2), characterized in that, Also includes: The status monitoring unit (41) is used to detect the flipping angle of the compartment (2), the amount of cargo inside the compartment (2), and the material discharge status at the unloading port; The unloading auxiliary mechanism (5) includes multiple movable scrapers (51) disposed on the surface of the bottom plate (21) of the box body (2), a second drive assembly (52) that drives the movable scrapers (51) to flip, and a vibration generating device (53) disposed below the movable scrapers (51) and linked thereto. The opening direction of the movable scrapers (51) is downward. An airflow assist component (56) is arranged at an angle on the side of the compartment (2) for spraying airflow onto the inner surface of the compartment (2); A liquid spraying assembly (55) is integrated with an airflow auxiliary assembly (56) on a rotating base. The liquid spraying assembly (55) includes a high-pressure water outlet pipe (552), and the airflow auxiliary assembly (56) includes a high-pressure air outlet pipe (561). The high-pressure water outlet pipe (552) rotates from top to bottom to flush the chamber (2), and the high-pressure air outlet pipe (561) rotates from top to bottom to flush the chamber (2). The high-pressure air outlet pipe (561) is located in front of the high-pressure water outlet pipe (552), and the liquid spraying assembly (55) is located below the airflow auxiliary assembly (56). Control unit (4), which is electrically connected to the status monitoring unit (41), the unloading auxiliary mechanism (5), the airflow auxiliary component (56), and the liquid spraying component (55), is configured as follows: When the container (2) is in the unloading posture, the unloading auxiliary mechanism (5) is activated when the loading volume is lower than the preset threshold and no material is discharged from the unloading port, as monitored by the status monitoring unit (41). When the moving scraper (51) impacts the vibration generating device (53) for a preset time, the sensing component (54) set on the vibration generating device (53) is activated, and the activation signal is transmitted to the control unit (4) through the sensing component (54). The control unit (4) controls the airflow auxiliary component (56) to perform the first airflow operation and then resets it. Then, the liquid spraying assembly (55) and the airflow assist assembly (56) are activated simultaneously to perform liquid spraying and airflow assist operations at the same time; The unloading auxiliary mechanism (5) includes a groove (516) provided on the surface of the bottom plate (21) of the body (2), and the groove (516) is located directly below the moving scraper (51); The groove (516) has an arc-shaped structure; The movable scraper (51) includes a rotating shaft (511) located above and rotatably mounted to the base plate (21), and a main piece (512) located below covering the groove (516). The lower edge of the main piece (512) is an arc structure, and the main piece (512) extends arc-shaped towards the rotating shaft (511) to form a covering piece (513). The covering piece (513) is attached to the base plate (21). The thickness of the main piece (512) facing the rotating shaft (511) is less than the thickness of the main piece (512) facing the end.

2. The vehicle with unloading auxiliary function according to claim 1, characterized in that: The first drive assembly (3) is a hydraulic cylinder assembly (31), and the second drive assembly (52) is a first forward and reverse motor (514). The hydraulic cylinder assembly (31) is controlled by the control unit (4) to drive the box (2) to flip, and the first forward and reverse motor (514) is controlled by the control unit (4) to drive the moving scraper (51) to flip.

3. The vehicle with unloading assistance function according to claim 2, characterized in that: The vibration generating device (53) includes an impact block (515) disposed below the moving scraper (51), a sensing component (54) located in the groove (516), and a vibration part located on the left and right sides of the moving scraper (51) and connected to the sensing component (54). When the moving scraper (51) reciprocates, the impact block (515) strikes the sensing component (54), activating the vibration part to impact the bottom plate (21) and vibrate the adhering material on the inner surface of the compartment (2).

4. A vehicle with unloading auxiliary function according to claim 3, characterized in that: The sensing component (54) includes a support frame (531) welded and fixed below the base plate (21) and a vibration rod (532) inserted into the support frame (531). The vibration unit includes several vibrating balls (533) fixedly installed at the end of the vibrating rod (532). The upper middle part of the vibrating rod (532) is matched with the impact block (515). The impact block (515) impacts the vibrating rod (532), vibrates in the space of the support frame (531) and transmits the vibration to the vibrating balls (533). The vibration is transmitted by the vibrating balls (533) striking the base plate (21).

5. A vehicle with unloading assistance function according to claim 4, characterized in that: The sensing component (54) includes a pressure sensor (534) disposed in the groove (516) corresponding to the impact block (515), and the pressure sensor (534) is electrically connected to the control unit (4). The vibration unit includes several cams (535) rotatably mounted below the body (2) and a second forward and reverse motor (536) that drives the cams (535) to rotate forward and backward. The second forward and reverse motor (536) is electrically connected to the control unit (4). The control unit (4) controls the second forward and reverse motor (536) to drive the cams (535) to rotate forward and backward. The cams (535) impact the bottom plate (21) to transmit vibration.

6. A vehicle with unloading assistance function according to claim 5, characterized in that: The base plate (21) is welded with a memory metal sheet (537) or high-strength steel at the position corresponding to the cam (535).

7. A vehicle with unloading assistance function according to claim 1, characterized in that: The liquid spraying assembly (55) also includes a support (551), a first control valve (553) for controlling the opening and closing of the high-pressure water outlet pipe (552), and a third drive assembly (554) for driving the support (551) to rotate. The high-pressure water outlet pipe (552) is inserted into the support (551). The third drive assembly (554), the first control valve (553) are electrically connected to the control unit (4). The control unit (4) controls the third drive assembly (554) to drive the support (551) to rotate, thereby driving the high-pressure water outlet pipe (552) to rotate from top to bottom. The first control valve (553) is opened synchronously to flush the chamber (2) from top to bottom.

8. A vehicle with unloading assistance function according to claim 7, characterized in that: The airflow assist component (56) also includes a second control valve (562) for controlling the opening and closing of the high-pressure air outlet pipe (561). The high-pressure air outlet pipe (561) is inserted into the support (551). The second control valve (562) is electrically connected to the control unit (4). The control unit (4) controls the third drive component (554) to drive the support (551) to rotate, thereby driving the high-pressure air outlet pipe (561) to rotate from top to bottom. The second control valve (562) is opened synchronously to flush the compartment (2) from top to bottom.

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