Highway pavement and bridge deck focused ultrasonic deicing and crushing vehicle

Abstract

The invention discloses a focused ultrasonic deicing and crushing vehicle for a highway pavement and a bridge deck, which belongs to the technical field of pavement deicing and comprises a carrier, a generator set, a support frame and a deicing system. A generator set is carried on the carrier to provide power for the carrier and the deicing system; the deicing system is connected to the carrier through the supporting frame body. An ultrasonic ice crushing unit, an ultrasonic stripping unit and a crushed ice cleaning unit in the deicing system are electrically connected with a communication control unit and a stepping motor control unit; the ultrasonic ice crushing unit comprises a plurality of ultrasonic probe assemblies and is used for crushing an ice surface and drilling holes; the ultrasonic stripping unit is used for stripping the ice layer; the crushed ice cleaning unit comprises a plurality of groups of rotary cleaning mechanisms for cleaning crushed ice; and the stepping motor control unit provides power for the system and is also connected with an operation system of the carrier, so that the deicing system and the carrying carrier work cooperatively. The method has the advantages of safety and high efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of road deicing, and more specifically relates to a focused ultrasonic ice removal and ice crushing vehicle for highway road surfaces and bridge decks. Background Art

[0002] Most of the "two lines" of highways in Xinzang and Sichuan-Tibet in China are located in high-altitude and cold regions. The winter lasts for a long time, the temperature difference between day and night is large, and low-temperature snowstorm weather often occurs. Snow and ice accumulation often leads to a significant reduction in the traffic capacity of the "two lines" of highways and frequent traffic accidents. In the existing technology, the physical methods used for road snow and ice removal mostly adopt mechanical methods or deicing agents to melt ice and remove snow. Sprinkling deicing agents on the ice-covered road surface has a good ice melting effect, but it has a certain corrosive effect on the road surface layer and the surrounding environment, and if the ice is not cleared in time after melting, it is easy to cause large-area secondary icing. The commonly used mechanical methods are snow and ice shoveling and snow and ice rolling. By using mechanical vibration and rotation methods to break the ice layer from the outside to the inside to achieve the purpose of removing snow and ice, a large mechanical impact is required to remove the compacted ice layer. And due to different external impacts, a large amount of acting energy is absorbed by the ice layer surface and will not affect the inside of the ice layer, making it difficult to weaken the ice-road bonding force deep inside, exposing the limited operation ability of existing snow and ice removal machinery, low disposal efficiency for thick snow and ice accumulation, and lack of disposal means for dangerous dark ice, thin ice, and avalanche hazards. It is impossible to balance complete ice removal and road protection.

[0003] Therefore, how to provide a focused ultrasonic ice removal and ice crushing vehicle for highway road surfaces and bridge decks is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a focused ultrasonic ice removal and ice crushing vehicle for highway road surfaces and bridge decks, which solves the problems of serious harm to the road caused by large mechanical impact and ice and snow residue caused by small acting force in the existing technology. The aim is to destroy the structure of ice from the inside with less energy and then peel the crushed ice from the road surface to achieve the purpose of ice removal.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A focused ultrasonic ice removal and ice crushing vehicle for highway road surfaces and bridge decks, comprising a vehicle carrier, a generator set, a support frame body, and an ice removal system; the generator set is carried on the vehicle carrier, and the generator set provides power for the vehicle carrier and the ice removal system; the ice removal system is connected to the vehicle carrier through the support frame body;

[0007] The ice removal system includes an ultrasonic ice crushing unit, an ultrasonic peeling unit, an ice crushing and cleaning unit, a communication control unit, and a stepping motor control unit; the ultrasonic ice crushing unit is arranged in front of the vehicle carrier, the ultrasonic peeling unit and the ice crushing and cleaning unit are arranged behind the vehicle carrier, and the communication control unit and the stepping motor control unit are arranged on the vehicle carrier;

[0008] The ultrasonic ice crushing unit, the ultrasonic peeling unit, and the ice crushing and cleaning unit are all electrically connected to the communication control unit and the stepper motor control unit; the ultrasonic ice crushing unit includes several groups of ultrasonic probe assemblies arranged in a rectangular array for drilling holes in the ice surface; the ultrasonic peeling unit is used to peel the broken ice layer from the road surface; the ice crushing and cleaning unit includes multiple groups of uniformly arranged rotary cleaning mechanisms for cleaning the broken ice; the stepper motor control unit is connected to the generator set, and the generator set provides power for the deicing system; the stepper motor control unit is also connected to the running system of the vehicle to realize the coordinated operation of the deicing system and the carrying vehicle.

[0009] Further, the ultrasonic probe assembly includes a fixed pedestal, a spring, and a probe; the fixed pedestal is fixedly connected to a support frame body for supporting the ultrasonic ice crushing unit; the lower part of the fixed pedestal is provided with an opening, the spring is arranged in the fixed pedestal and connects the fixed pedestal and the probe; the top of the probe is arranged in the fixed pedestal.

[0010] Further, the ultrasonic peeling unit includes a connecting roller and several groups of roller wheels uniformly arranged along the axial direction of the connecting roller; the connecting roller is rotatably connected to a support frame body for supporting the ultrasonic peeling unit; the roller wheel includes multiple groups of arc-shaped blade pieces uniformly arranged along the circumferential direction of the connecting roller, and multiple groups of arc-shaped blade pieces are respectively fixedly connected to the connecting roller through connecting rods; a piezoelectric ceramic is installed on the roller wheel to generate ultrasonic vibration in the horizontal direction.

[0011] Further, the rotary cleaning mechanism includes a connecting rod, a motor, and a cleaning head; the upper end of the connecting rod is fixedly connected to a support frame body for supporting the ice crushing and cleaning unit, and the lower end is fixedly connected to the motor; the output end of the motor is fixedly connected to the central position of the cleaning head; the cleaning head includes a rotating disc and cutter heads; the upper side of the rotating disc is fixedly connected to the output end of the motor, and the other side is fixedly connected to multiple groups of cutter heads uniformly arranged along the circumference of the center of the rotating disc for cleaning the broken ice.

[0012] Further, the communication control unit includes an ultrasonic ice crushing control sub-unit, an ultrasonic peeling control sub-unit, and a cleaning control sub-unit, which are respectively electrically connected to the ultrasonic ice crushing unit, the ultrasonic peeling unit, and the ice crushing and cleaning unit for respectively controlling ice crushing, peeling, and cleaning to establish a distributed control system.

[0013] Further, a storage capacitor is arranged between the ultrasonic ice crushing unit and the generator set.

[0014] Furthermore, the supporting frame includes a main frame, an ice crushing frame, a peeling frame and a cleaning frame, and the ice crushing frame, the peeling frame and the cleaning frame are respectively used to support the ultrasonic ice crushing unit, the ultrasonic peeling unit and the crushed ice cleaning unit; the main frame is connected to the carrier; the ice crushing frame includes a first ice crushing bracket connected to the main frame in front of the carrier and two groups of second ice crushing brackets respectively arranged on both sides of the ice crushing bracket; the peeling frame includes a group of first peeling brackets connected to the main frame and a foldable second peeling bracket; the cleaning frame includes two groups of cleaning brackets rotatably connected to the main frame.

[0015] The beneficial effects of the present invention are:

[0016] The present invention provides a focused ultrasonic deicing and ice crushing vehicle for road pavement and bridge deck, which concentrates energy inside the ice layer through high-intensity ultrasonic sound waves, causing the ice layer to break inside, with little impact on the road surface, and has the advantages of high environmental adaptability, intelligence, low energy consumption, controllable action, high efficiency, and taking into account both deicing and road protection. The present invention significantly improves deicing efficiency, system stability and operational safety, can achieve more efficient and intelligent deicing operations, can effectively improve the ability and level of road maintenance and traffic maintenance tasks in high-cold areas, and has important military value and practical significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the deicing system of the present invention.

[0019] Figure 2 It is a schematic structural diagram of the ultrasonic ice crushing unit of the present invention.

[0020] Figure 3 It is a schematic structural diagram of the ultrasonic probe assembly of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the deicing vehicle of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the support frame of the present invention after being folded.

[0023] Among them, in the figure:

[0024] 1 - Ultrasonic ice crushing unit; 11 - Fixed pedestal; 12 - Spring; 13 - Probe; 2 - Ultrasonic stripping unit; 3 - Ice crushing and cleaning unit; 41 - Ultrasonic ice crushing control sub - unit; 42 - Ultrasonic stripping control sub - unit; 43 - Cleaning control sub - unit; 5 - Carrier vehicle; 6 - Generator set; 7 - Support frame. Detailed implementation mode

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to the attached Figures 1-5 , the present invention provides a highway pavement and bridge deck focused ultrasonic ice - removing and ice - crushing vehicle, including a carrier vehicle 5, a generator set 6, a support frame 7 and an ice - removing system; the generator set 6 is carried on the carrier vehicle 5, and the generator set 6 provides power for the carrier vehicle 5 and the ice - removing system; the ice - removing system is connected to the carrier vehicle 5 through the support frame 7; the ice - removing system includes an ultrasonic ice - crushing unit 1, an ultrasonic stripping unit 2, an ice - crushing and cleaning unit 3, a communication control unit and a stepping motor control unit; the ultrasonic ice - crushing unit 1 is arranged in front of the carrier vehicle 5, the ultrasonic stripping unit 2 and the ice - crushing and cleaning unit 3 are arranged behind the carrier vehicle 5, and the communication control unit and the stepping motor control unit are arranged on the carrier vehicle 5.

[0027] The ultrasonic ice - crushing unit 1 includes several groups of ultrasonic probe assemblies arranged in a rectangular array; the ultrasonic probe assembly includes a fixed pedestal 11, a spring 12 and a probe 13; the fixed pedestal 11 is fixedly connected to the support frame 7 for supporting the ultrasonic ice - crushing unit; the lower part of the fixed pedestal 11 is provided with an opening, the spring 12 is arranged in the fixed pedestal 11, connecting the fixed pedestal 11 and the probe 13; the top of the probe 13 extends into the fixed pedestal 11, using the fixed pedestal 11 as a moving track. The probe 13 is connected to the fixed pedestal 11 through the spring 12. When the ultrasonic ice - crushing unit 1 presses against the ice surface, the spring can ensure that each probe can be in close contact with the ice surface, and can avoid excessive pressure of the fixed pedestal on the probe causing damage to the probe, and can further avoid energy dissipation caused by high - intensity ultrasonic waves.

[0028] The ultrasonic ice - crushing unit is electrically connected to the communication control unit and the stepping motor control unit; the ultrasonic ice - crushing unit detects the ice layer thickness, directly contacts the probe with the ice surface, and uses a high - intensity ultrasonic focusing probe to punch multiple hollow points on the ice surface, enabling the probe to penetrate to a certain depth position under the ice layer, or even directly reach the joint part of the ice layer and the road surface when the ice layer is relatively thin.

[0029] The ultrasonic peeling unit 2 includes a connecting roller and several groups of roller wheels evenly arranged along the axial direction of the connecting roller; the connecting roller is rotatably connected to a support frame body 7 for supporting the ultrasonic peeling unit 2; each roller wheel includes multiple groups of arc-shaped wheel pieces evenly arranged along the circumferential direction of the connecting roller, and the multiple groups of arc-shaped wheel pieces are respectively fixedly connected to the connecting roller through connecting rods.

[0030] The ultrasonic peeling unit 2 is electrically connected to the communication control unit and the stepping motor control unit; the peeling principle of the ultrasonic peeling unit 2 is as follows: piezoelectric ceramics are installed on the roller wheels to generate horizontal ultrasonic vibrations, which are conducted to the ice layer through the arc-shaped wheel pieces, so as to generate shear stress between the ice layer and the road surface. When the shear stress is greater than the bonding force of the ice layer, the ice layer will be peeled off from the road surface. Compared with the high-frequency mechanical vibration ice removal in the prior art, the ultrasonic peeling unit 2 can establish an ultrasonic vibration database for different ice layer thicknesses and different road surface structures, dynamically adjust the vibration frequency, and further avoid damage to the road surface.

[0031] The ice crushing and cleaning unit 3 includes multiple groups of evenly arranged rotary cleaning mechanisms; each rotary cleaning mechanism includes a connecting rod, a motor, and a cleaning head; the upper end of the connecting rod is fixedly connected to a support frame body 7 for supporting the ice crushing and cleaning unit 3, and the lower end is fixedly connected to the motor; the output end of the motor is fixedly connected to the central position of the cleaning head; the cleaning head includes a rotating disc and cutter heads; the upper side of the rotating disc is fixedly connected to the output end of the motor, and the other side is fixedly connected to multiple groups of cutter heads evenly arranged along the circumference of the center of the rotating disc for cleaning crushed ice.

[0032] The ice crushing and cleaning unit 3 is electrically connected to the communication control unit and the stepping motor control unit, and uses the cleaning head to clean the peeled ice blocks to both sides of the road, which can further improve the integrity of the ice removal process and the cleanliness of the road.

[0033] The communication control unit is electrically connected to the ultrasonic ice crushing unit 1, the ultrasonic peeling unit 2, the ice crushing and cleaning unit 3, and the stepping motor control unit, and is used to coordinate and control each part to achieve the ice removal function. The communication control unit includes an ultrasonic ice crushing control sub-unit 41, an ultrasonic peeling control sub-unit 42, and a cleaning control sub-unit 43, which are respectively electrically connected to the ultrasonic ice crushing unit 1, the ultrasonic peeling unit 2, and the ice crushing and cleaning unit 3, and are used to respectively control ice crushing, peeling, and cleaning, establish a distributed control system, realize the communication and collaborative work of each sub-unit, and use the control system network to transmit information, control the power distribution of each unit, ensure the normal operation of each unit under limited power, improve the energy utilization rate, and ensure the normal operation of the ice removal system.

[0034] The stepping motor control unit is used to supply power to the entire system of the ultrasonic ice crushing unit 1, the ultrasonic peeling unit 2, the ice crushing and cleaning unit 3, and the communication control unit, and is used to connect the deicing system and the generator set 6 on the vehicle. The stepping motor control unit can meet the loading time and span requirements of the deicing system, drive the stepping motor to control the deicing system to complete the ice crushing operation process; the stepping motor control unit is also connected to the running system of the vehicle to realize the coordinated operation of the deicing system and the carrying vehicle, and control the deicing system to perform ice crushing operations synchronously according to the driving speed of the vehicle. The stepping motor control component enhances the reliability of the connection method between the deicing system and the vehicle and the coordination mechanism with the vehicle's driving, improves the work safety and efficiency, and adopts a fault-tolerant design to ensure the high reliability of the system.

[0035] A storage capacitor is provided between the ultrasonic ice crushing unit 1 and the generator set 6. When the deicing system is working, the focused high-intensity ultrasonic array probe performs ice crushing operations according to the working surface. When the vehicle drives the ultrasonic ice crushing unit 1 to move to the next working surface, the probe 13 stops working and no power is required during this process. The storage capacitor is in a charging state when the probe does not require power and is in a discharging state when power is required, which can optimize the energy utilization rate and ensure the normal operation of the deicing system under limited power.

[0036] The stepping motor control unit is connected to the vehicle system and the deicing system to realize the communication of each deicing step including ultrasonic ice crushing, ultrasonic ice layer peeling, ice crushing and cleaning, etc. and the coordinated operation of the vehicle's movement. The driver can monitor and control the processes of each system in real time inside the vehicle to realize the manual control and automatic control of the deicing work.

[0037] The support frame body 7 includes a main frame body, an ice crushing frame, a peeling frame, and a cleaning frame. The ice crushing frame, the peeling frame, and the cleaning frame are respectively used to support the ultrasonic ice crushing unit 1, the ultrasonic peeling unit 2, and the ice crushing and cleaning unit 3; the main frame body is connected to the vehicle; the ice crushing frame includes a first ice crushing bracket arranged directly in front of the vehicle 5 and connected to the main frame body and two groups of second ice crushing brackets respectively arranged on both sides of the ice crushing bracket; the second ice crushing bracket can be folded up and stored for operations on different road widths. The structure of the peeling frame is the same as that of the ice crushing frame, and also includes a first peeling bracket connected to the main frame body and a foldable second peeling bracket. The cleaning frame includes two groups of cleaning brackets rotatably connected to the main frame body. After being fully unfolded, it can cover a wider road surface, and the ice crushing can be swept to the road shoulder and the center line of the two-way lane in a single sweep. After being folded, it can meet the passing conditions of ordinary roads. A moving mechanism for lifting the ultrasonic ice crushing unit 1 is also provided on the main frame body to adjust the height of the ultrasonic ice crushing unit 1.

[0038] The working process of the present invention is as follows: An ice removal system is installed on the vehicle 5, and an ultrasonic ice crushing unit 1 is arranged in front of the vehicle. Using a high-intensity focused ultrasonic probe, a plurality of hollow points are punched at the joint between the ice layer and the road surface under the ice layer. Then, the ice layer is completely peeled off by the roller in the ultrasonic peeling unit 2 behind the vehicle. Finally, the crushed ice is swept to both sides of the road by the ice crushing and cleaning unit 3. During the process of the vehicle 5 moving forward and performing ice crushing operations, the array-arranged probes 13 press tightly against the ice surface, and the position of the vehicle remains stationary until the ice crushing is completed. When the ice crushing on the contact surface is completed, the ultrasonic ice crushing unit 1 is lifted and moved to the next road surface that needs ice crushing, and the ultrasonic ice crushing unit 1 is lowered to continue the ice crushing operation.

[0039] The present invention uses a high-intensity focused ultrasonic probe to emit high-intensity ultrasonic waves. The high-intensity ultrasonic waves pass through the silicone through a coupling agent and are focused inside the ice layer to generate a high-energy area. The high-energy area causes the inside of the ice layer to rupture. After the ice layer ruptures, the inside of the ice layer becomes crushed ice. Then, through the roller pressing on the ice surface, the ice layer is completely peeled off the road surface through ultrasonic vibration. The present invention solves the problems in the prior art that due to large mechanical impact, it causes serious harm to the road and small acting force resulting in ice and snow residue. By concentrating the energy inside the ice layer through high-intensity ultrasonic waves, the inside of the ice layer ruptures. It has little impact on the road surface and will not cause the road surface to heat up, resulting in the re-freezing of ice water.

[0040] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method part.

[0041] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The focused ultrasound ice removal and ice crushing vehicle for highway road surfaces and bridge decks is characterized in that It includes a vehicle (5), a generator set (6), a support frame (7) and a de-icing system; the generator set (6) is carried on the vehicle (5), and the generator set (6) provides power for the vehicle (5) and the de-icing system; the de-icing system is connected to the vehicle (5) through the support frame (7). The de-icing system includes an ultrasonic ice-breaking unit (1), an ultrasonic peeling unit (2), an ice-breaking cleaning unit (3), a communication control unit and a stepping motor control unit; the ultrasonic ice-breaking unit (1) is arranged in front of the vehicle (5), the ultrasonic peeling unit (2) and the ice-breaking cleaning unit (3) are arranged behind the vehicle (5), and the communication control unit and the stepping motor control unit are arranged on the vehicle (5). The ultrasonic ice-breaking unit (1), the ultrasonic peeling unit (2) and the ice-breaking cleaning unit (3) are all electrically connected to the communication control unit and the stepping motor control unit; the ultrasonic ice-breaking unit (1) includes several groups of ultrasonic probe assemblies arranged in a rectangular array for drilling holes in the ice surface; the ultrasonic peeling unit (2) is used to peel the broken ice layer from the road surface; the ice-breaking cleaning unit (3) includes multiple groups of uniformly arranged rotary cleaning mechanisms for cleaning the broken ice; the stepping motor control unit is connected to the generator set (6), and the generator set (6) provides power for the de-icing system; the stepping motor control unit is also connected to the running system of the vehicle to realize the coordinated operation of the de-icing system and the carrying vehicle.

2. The focused ultrasound ice removal and ice crushing vehicle for highway road surfaces and bridge decks according to claim 1, wherein The ultrasonic probe assembly includes a fixed pedestal (11), a spring (12) and a probe (13); the fixed pedestal (11) is fixedly connected to the support frame (7) for supporting the ultrasonic ice-breaking unit; the lower part of the fixed pedestal (11) is provided with an opening, the spring (12) is arranged in the fixed pedestal (11) and connects the fixed pedestal (11) and the probe (13); the top of the probe (13) is arranged in the fixed pedestal (11).

3. The focused ultrasound ice removal and ice crushing vehicle for highway road surfaces and bridge decks according to claim 1, wherein The ultrasonic peeling unit (2) includes a connecting roller and several groups of rollers uniformly arranged along the axial direction of the connecting roller; the connecting roller is rotatably connected to the support frame (7) for supporting the ultrasonic peeling unit (2); each roller includes multiple groups of arc-shaped blades uniformly arranged along the circumferential direction of the connecting roller, and the multiple groups of arc-shaped blades are respectively fixedly connected to the connecting roller through connecting rods; piezoelectric ceramics are installed on the rollers to generate horizontal ultrasonic vibrations.

4. The focused ultrasound ice removal and ice crushing vehicle for highway pavement and bridge deck according to claim 1, characterized in that, The rotary cleaning mechanism includes a connecting rod, a motor and a cleaning head; the upper end of the connecting rod is fixedly connected to the support frame (7) for supporting the ice-breaking cleaning unit (3), and the lower end is fixedly connected to the motor; the output end of the motor is fixedly connected to the center position of the cleaning head; the cleaning head includes a rotating disc and cutter heads; the upper side of the rotating disc is fixedly connected to the output end of the motor, and the other side is fixedly connected to multiple groups of cutter heads uniformly arranged along the circumference of the center of the rotating disc for cleaning the broken ice.

5. The ice-removing and ice-crushing vehicle using focused ultrasound for highway road surfaces and bridge decks according to claim 1, wherein The communication control unit includes an ultrasonic ice crushing control subunit (41), an ultrasonic peeling control subunit (42), and a cleaning control subunit (43), which are electrically connected to the ultrasonic ice crushing unit (1), the ultrasonic peeling unit (2), and the ice crushing cleaning unit (3) respectively, and are used to control ice crushing, peeling, and cleaning respectively to establish a distributed control system.

6. The ice removal and ice crushing vehicle for highway pavement and bridge deck by focused ultrasound according to claim 1, characterized in that, A storage capacitor is provided between the ultrasonic ice crushing unit (1) and the generator set (6).

7. The focused ultrasound ice removal and ice crushing vehicle for highway pavement and bridge deck according to claim 1, characterized in that, The support frame body (7) includes a main frame body, an ice crushing frame, a peeling frame, and a cleaning frame. The ice crushing frame, the peeling frame, and the cleaning frame are respectively used to support the ultrasonic ice crushing unit (1), the ultrasonic peeling unit (2), and the ice crushing cleaning unit (3); the main frame body is connected to the vehicle; the ice crushing frame includes a first ice crushing bracket disposed directly in front of the vehicle (5) and connected to the main frame body, and two groups of second ice crushing brackets respectively disposed on both sides of the ice crushing bracket; the peeling frame includes a first peeling bracket connected to the main frame body and a foldable second peeling bracket; the cleaning frame includes two groups of cleaning brackets rotatably connected to the main frame body.

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