A cleaning device

Abstract

This utility model discloses a cleaning device, including a cleaning frame, a suction nozzle mechanism mounted on the cleaning frame for absorbing materials inside the vehicle compartment, a side brush mechanism for cleaning the side walls of the vehicle compartment, and a bottom brush mechanism for cleaning the bottom walls of the vehicle compartment. It also includes a lifting drive mechanism for raising and lowering the cleaning frame, a rotation drive mechanism for rotating the cleaning frame, and a front-rear drive mechanism for moving the cleaning mechanism back and forth. Thus, through the coordinated action of the side brush mechanism and the bottom brush mechanism, the side walls, bottom walls, and corner areas of the vehicle compartment can be comprehensively covered for cleaning, avoiding blind spots. The suction nozzle mechanism instantly absorbs scattered materials. The front-rear drive mechanism can adjust the position of the cleaning frame in the front-rear direction. The lifting drive mechanism can flexibly adjust the height of the cleaning frame inside the vehicle compartment. The rotation drive mechanism can drive the cleaning frame to turn, allowing for back-and-forth cleaning inside the vehicle compartment, thereby ensuring the cleanliness of the interior walls of the vehicle compartment.

Description

Technical Field

[0001] This utility model relates to the field of cleaning, specifically to a cleaning device. Background Technology

[0002] Currently, train carriage cleaning is mostly done manually. Workers need to enter the carriages and use brooms, shovels, and other tools to sweep, collect, and transport residual materials outside. This manual cleaning method has the following drawbacks: 1. It is labor-intensive, especially when multiple carriages need to be cleaned at once. The cleaning operation is time-consuming, labor-intensive, and extremely inefficient; 2. Dust and particulate matter often remain inside the carriages. Workers are exposed to the dust environment for a long time, which can easily cause respiratory diseases and other health problems. Moreover, the spread of dust can cause secondary pollution to the surrounding environment; 3. Manual cleaning is difficult to thoroughly clean hidden areas such as the corners, edges, and junctions of the side and bottom walls of the carriages, resulting in residual materials affecting the efficiency of subsequent transportation or contaminating newly loaded goods. Utility Model Content

[0003] Based on this, and in response to the aforementioned technical problems, this utility model provides a cleaning device.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A cleaning device for cleaning a carriage includes a cleaning frame, a suction nozzle mechanism mounted on the cleaning frame for absorbing materials inside the carriage, a side brush mechanism for cleaning the side walls of the carriage, and a bottom brush mechanism for cleaning the bottom walls of the carriage. It also includes a lifting drive mechanism for driving the cleaning frame to rise and fall, a rotation drive mechanism for driving the cleaning frame to rotate, and a front and rear drive mechanism for driving the cleaning mechanism to move back and forth.

[0006] By adopting the above technical solution, the side brush mechanism and the bottom brush mechanism work together to fully cover the side walls, bottom walls and corner areas of the vehicle compartment for cleaning, avoiding blind spots. The suction nozzle mechanism can pick up scattered materials in time. The front and rear drive mechanism can drive the sweeping frame to adjust its position in the front and rear directions. The lifting drive mechanism can flexibly adjust the height of the sweeping frame in the vehicle compartment. The rotation drive mechanism can drive the sweeping frame to turn so that it can sweep back and forth in the vehicle compartment, thereby ensuring the cleanliness of the interior walls of the vehicle compartment.

[0007] In a specific embodiment of this utility model: the suction nozzle mechanism includes a suction head located at the bottom of the sweeping frame and a suction head drive assembly fixed on the sweeping frame for driving the suction head to move left and right, with the suction head's feed inlet facing downwards. This downward-facing feed inlet allows for direct suction of residual material on the bottom wall of the vehicle compartment; the front and rear drive mechanism drives the sweeping frame to move forward and backward within the vehicle compartment, and combined with the suction head drive assembly driving the suction head to move left and right, the suction head's position can be flexibly adjusted, allowing it to approach hidden areas such as the corners of the vehicle compartment or the junction of the bottom and side walls, expanding the suction range and ensuring no blind spots in material suction.

[0008] In a specific embodiment of this utility model: the suction head drive assembly includes sprockets on both sides of the lower part of the sweeping frame and a chain sleeved on the two sprockets. The sweeping frame is also fixed with a first motor for driving one of the sprockets to rotate. The upper and lower sides of the chain are respectively provided with first guide rails. The two first guide rails are slidably connected with first slide blocks. The first slide blocks are connected to the chain. The suction head is fixed on the first slide blocks.

[0009] In a specific embodiment of this utility model: the side brush mechanism includes a pair of vertical side roller brushes driven to rotate by a motor and located in front of the sweeper frame, a roller brush drive assembly that drives the two side roller brushes to move closer or further apart from each other, a pair of vertical side brushes located on both sides above the two side roller brushes, and a support assembly connected to the pair of side brushes. The support assembly can adaptively make the side brushes automatically adhere to the side wall.

[0010] In this way, after the sweeper frame is driven into the truck bed, the roller brush drive assembly drives a pair of side roller brushes to move outward, so that they contact the lower part of the left and right side walls of the truck bed respectively. At the same time, the motor drives the side roller brushes to rotate. Meanwhile, the support assembly controls the pair of side brushes on both sides of the upper part of the sweeper frame to spread outward and stick to the upper left and right side walls of the truck bed respectively. Then, the front and rear drive mechanisms drive the sweeper frame to move forward, sweeping the residual material on the left and right side walls, thereby cleaning the left and right side walls of the truck bed. When the sweeper frame moves forward and approaches the front side wall of the truck bed, the roller brush drive assembly drives a pair of side roller brushes to move inward, so that they switch from contacting the left and right side walls to sticking to the lower part of the front side wall. The motor drives the side roller brushes to rotate continuously, cleaning the lower part of the front side wall. After the lower part of the front side wall is cleaned, the lifting drive mechanism drives the sweeper frame to rise, driving the side roller brushes to move upward synchronously. Then, it drives a pair of vertical side roller brushes to move outward to clean the upper part of the front side wall, thereby completing the cleaning of the front side wall of the truck bed. When the rear side wall of the truck bed needs cleaning, the lifting drive mechanism first drives the cleaning frame to rise and detach from the truck bed. Then, the rotation drive mechanism drives the cleaning frame to turn, so that the side roller brushes face the rear side wall of the truck bed. Immediately afterwards, the lifting drive mechanism drives the cleaning frame to descend and re-enter the truck bed. Afterward, the front and rear drive mechanisms drive the cleaning frame to move backward, repeating the cleaning action of the front side wall to clean the rear side wall. In addition, during the process of the cleaning frame being driven backward, the side roller brushes and side brushes can clean the left and right side walls again, further reducing residual material and significantly improving the cleanliness of the truck bed.

[0011] In a specific embodiment of this utility model: the roller brush drive assembly includes a second guide rail located at the middle position of the front side of the sweeper frame, two second slide blocks slidably connected on the second guide rail, and two horizontal cylinders are arranged opposite to each other on both sides of the front end face of the sweeper frame. The output ends of the two horizontal cylinders are respectively connected to the corresponding second slide blocks, and the two side roller brushes are respectively fixed on the corresponding second slide blocks.

[0012] In a specific embodiment of this utility model: the support assembly includes a pair of brush seats hinged to the left and right top corners of the sweeper frame and a pair of horizontal rods. The inner ends of the two horizontal rods are hinged together by a shaft, and the outer ends are respectively hinged to the corresponding brush seats. Rollers are installed at the bottom of the outer ends of the brush seats, and two side brushes are installed on the vertical rods of the corresponding brush seats.

[0013] In a specific embodiment of this utility model: the bottom brush mechanism includes a bottom roller brush driven by a motor and a pair of disc brushes. The bottom roller brush is located at the bottom of the cleaning frame and behind the suction head. The two disc brushes are respectively connected to the bottom of the corresponding side roller brushes and can move and rotate with the side roller brushes on the same side. Thus, during operation, the rotation of the bottom roller brush behind the suction head pushes the material scattered on the bottom wall of the carriage forward to the feed inlet of the suction head, making it easier to capture the material under the negative pressure of the suction head, thus improving the efficiency of the suction head in absorbing material. The disc brushes are connected to the bottom of the side roller brushes and move with them, avoiding blind spots in cleaning. Their rotational motion gathers the material on the front side towards the rear center area, further facilitating the suction head's absorption.

[0014] In a specific embodiment of this utility model: a pair of vertical dust collection hoods are provided between the two side roller brushes. A dust collection hood rotation drive mechanism, connected to the corresponding dust collection hood, is installed on the second slide and used to drive the dust collection hood to rotate from the inside of the side roller brush to the front of the corresponding side roller brush. The side of the dust collection hood has a vertically elongated suction port, and the air outlet at the top is connected to the dust removal system through a hose. A brush is connected to the outer edge of the suction port. With this structure, when the side roller brushes rotate to clean the side walls, a large amount of dust is generated. The dust collection hood can directly capture the dust through the suction port and enter the dust removal system through the top air outlet and hose, realizing the immediate collection and treatment of dust, reducing dust diffusion, and reducing environmental pollution.

[0015] In a specific embodiment of this utility model: it also includes a movable gantry and a support frame. The front and rear drive mechanisms are connected to the movable gantry, forming a carriage passage at the lower part of the movable gantry. The sweeper frame is mounted on the support frame via a rotary drive mechanism. The lifting drive mechanism includes two vertical drive motors. Vertical racks are fixed on both sides of the frame passage formed at the upper part of the movable gantry. The two vertical drive motors are respectively mounted on both sides of the top of the support frame. Gears that mesh with the corresponding vertical racks are mounted on the output shafts of the vertical drive motors.

[0016] In a specific embodiment of this utility model: the movable gantry is further provided with a separation and dust removal mechanism and a fan. The separation and dust removal mechanism includes a hopper and a dust collector connected above the hopper. A discharge valve is connected to the discharge port at the bottom of the hopper. A telescopic material pipe is connected to the front side of the dust collector and an air duct is connected to the rear side. The air duct is connected to the fan, and the lower end of the telescopic material pipe is connected to the suction head.

[0017] In summary, this invention utilizes a negative pressure system formed by a fan and a separation and dust removal mechanism. Under negative pressure, the mixture of material and air passes through the suction head and enters the separation and dust removal mechanism along the telescopic material pipe. The material falls into the hopper, while the clean air is discharged directly into the atmosphere through the ventilation pipe and the fan's exhaust port. The synergistic effect of the side brush mechanism and the bottom brush mechanism can comprehensively cover the side walls, bottom walls, and corner areas of the truck bed for cleaning, avoiding blind spots. Combined with the suction nozzle mechanism, scattered materials are instantly picked up. The front and rear drive mechanisms drive the moving gantry, moving the cleaning frame back and forth. The lifting drive mechanism can flexibly adjust the height of the cleaning frame inside the truck bed. The rotation drive mechanism can drive the cleaning frame to steer, allowing for back-and-forth cleaning of the truck bed, thus ensuring the cleanliness of the truck bed's interior walls. In this way, this integrated unloading and cleaning machine replaces manual labor in the truck bed, significantly reducing labor intensity and greatly improving cleaning efficiency, making it particularly suitable for large-scale, batch truck bed cleaning scenarios. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of a cleaning device according to the present invention;

[0020] Figure 2 This is a front view of the cleaning device;

[0021] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 yes Figure 2 Enlarged view at point B in the middle;

[0023] Figure 5 This is a schematic diagram of the structure of the sweeper frame of this utility model;

[0024] Figure 6 This shows the side brush tilting inwards;

[0025] Figure 7 This shows the bottom brush mechanism. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 , Figure 2 and Figure 4 As shown, this utility model is a cleaning device for cleaning a vehicle compartment. It includes a cleaning frame 10, a suction nozzle mechanism 20 mounted on the cleaning frame 10 for absorbing materials from inside the compartment, a side brush mechanism 30 for cleaning the side walls of the compartment, and a bottom brush mechanism 40 for cleaning the bottom walls of the compartment. It also includes a lifting drive mechanism 50 for raising and lowering the cleaning frame 10, a rotation drive mechanism 60 for rotating the cleaning frame 10, and a front-rear drive mechanism 70 for moving the cleaning frame 10 back and forth. Wheels 11 are also provided at the bottom of the cleaning frame 10. In this way, through the coordinated action of the side brush mechanism 30 and the bottom brush mechanism 40, the side walls, bottom walls and corner areas of the vehicle compartment can be fully covered for cleaning, avoiding blind spots. With the help of the suction nozzle mechanism, scattered materials can be picked up immediately. The front and rear drive mechanism can drive the sweeping frame to move back and forth, the lifting drive mechanism can flexibly adjust the height of the sweeping frame in the vehicle compartment, and the rotation drive mechanism can drive the sweeping frame to turn so as to clean the inside of the vehicle compartment again, thereby ensuring the cleanliness of the inside of the vehicle compartment.

[0028] like Figure 7 As shown, in this embodiment, the suction nozzle mechanism 20 includes a suction head 21 located at the bottom of the sweeping frame 10 and a suction head drive assembly 22 fixed on the sweeping frame 10 for driving the suction head 21 to move left and right. The feed inlet of the suction head 21 faces downward. In this way, with the feed inlet of the suction head facing downward, it can directly suck up residual materials on the bottom wall of the carriage; the front and rear drive mechanism 70 drives the sweeping frame 10 to move forward and backward in the carriage, and the suction head drive assembly 22 drives the suction head 21 to move left and right, which can flexibly adjust the position of the suction head, so that it can approach the corners of the carriage or the connection between the bottom wall and the side wall and other hidden areas, expand the suction range of the suction head, and ensure that there are no dead corners in the suction of materials.

[0029] like Figure 7 As shown, in this embodiment, the suction head drive assembly 22 includes a pair of sprockets located on both sides of the lower part of the sweeping frame 10, and a chain 24 sleeved on the two sprockets. A first motor for driving one of the sprockets to rotate is also fixed on the sweeping frame 10. First guide rails 25 are respectively provided on the upper and lower sides of the chain. First slide blocks 26 are slidably connected to the two first guide rails 25. The first slide blocks 26 are connected to the chain 24. The suction head 21 is fixed on the first slide block 26. Thus, when the first motor is started, it drives the sprockets to rotate, which in turn drives the chain 24 to rotate, thereby driving the first slide block 26 to move the suction head 21 left and right.

[0030] like Figures 4-7As shown, in this embodiment, the side brush mechanism 30 includes a pair of vertical side roller brushes 32 driven to rotate by a motor 31 in front of the sweeper frame 10, a roller brush drive assembly 33 that drives the pair of side roller brushes to move closer or further away from each other, a pair of vertical side brushes 34 located on both sides above the two side roller brushes 32, and a support assembly 35 connected to the pair of side brushes 34. The support assembly 35 can adaptively make the side brushes 34 automatically adhere to the side wall.

[0031] Thus, when the sweeper frame 10 is driven into the carriage, the roller brush drive assembly 33 drives a pair of side roller brushes 32 to move outward, so that they contact the lower part of the left and right side walls of the carriage respectively. At the same time, the motor drives the side roller brushes 32 to rotate. Meanwhile, the support assembly 35 drives a pair of side brushes 34 to spread outward and stick to the left and right side walls of the upper part of the carriage respectively. Then, the front and rear drive mechanism drives the sweeper frame to move forward. During the forward movement, the side roller brushes 32 clean the material remaining on the lower part of the left and right side walls, and the side brushes 34 clean the material remaining on the upper part of the left and right side walls, thereby achieving the cleaning of the left and right side walls of the carriage.

[0032] When the sweeping frame 10 moves forward to near the front side wall of the vehicle, the front and rear drive mechanism 70 stops, and the roller brush drive assembly 33 drives a pair of side roller brushes 32 to move inward, switching them from contacting the left and right side walls to contacting the lower part of the front side wall. During the inward movement of the pair of side roller brushes 32, the motor drives the side roller brushes to rotate continuously, cleaning the lower part of the front side wall. Of course, the roller brush drive assembly 33 can drive the pair of side roller brushes 32 to move closer or further away multiple times, thus cleaning the lower part of the front side wall multiple times and improving cleanliness. After the lower part of the front side wall is cleaned, the sweeping frame 10 is driven to rise by the lifting drive mechanism 50, causing the side roller brushes 32 to move synchronously upward to the upper part of the front side wall. The motor drives the side roller brushes to rotate continuously, and the roller brush drive assembly 33 drives a pair of vertical side roller brushes to move outward or inward, cleaning the upper part of the front side wall multiple times, thus completing the cleaning of the front side wall of the vehicle.

[0033] When the rear side wall of the truck bed needs cleaning, the lifting drive mechanism 50 first drives the cleaning frame 10 to rise and detach from the truck bed. Then, the rotation drive mechanism 60 drives the cleaning frame 10 to turn, so that the side roller brush 32 faces the rear side wall of the truck bed. Immediately afterwards, the lifting drive mechanism 50 drives the cleaning frame 10 to descend and re-enter the truck bed. Afterward, the front and rear drive mechanisms 70 drive the cleaning frame 10 to move backward and repeat the cleaning action of the front side wall to clean the rear side wall. In this way, during the backward movement of the cleaning frame 10, the side roller brush and side brush can clean the left and right side walls again, further reducing residual material and significantly improving the cleanliness of the truck bed.

[0034] like Figure 7As shown, in this embodiment, the roller brush drive assembly 33 includes a pair of upper and lower spaced second guide rails 331 located at the middle of the front side of the sweeper frame 10. Two second slide blocks 332 are slidably connected to the two second guide rails 331. Two horizontal cylinders (not shown in the figure) are arranged opposite each other on both sides of the front end face of the sweeper frame 10. The output ends of the two horizontal cylinders are respectively connected to the corresponding second slide blocks 332. The two side roller brushes 32 are respectively mounted on the corresponding second slide blocks 332. In this way, the extension and retraction of the horizontal cylinders drives the second slide blocks 332 to move left and right.

[0035] like Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment, the support assembly 35 includes a pair of brush holders 351 hinged to the left and right top corners of the sweeper frame 10, and a pair of horizontal rods 352. The inner ends of the two horizontal rods 352 are hinged together by a shaft 353, and their outer ends are respectively hinged to the corresponding brush holders 351. A roller 354 is installed at the bottom of the outer end of the brush holder 351. A downwardly extending vertical rod 355 is also connected to the brush holder 351. Two side brushes 34 are respectively installed on the outer surface of the corresponding vertical rod 355 with their bristles facing the sidewall. In the initial state, under the weight of the brush holder 351, side brushes 34, vertical rod 355, and horizontal rod 352, the inner end of the horizontal rod 352 gradually tilts downwards to the outer end, causing the side brushes 34 to gradually tilt inwards from top to bottom. This prevents the side brushes 34 from colliding with or interfering with the entrance or inner wall of the vehicle when the sweeper frame 10 descends into the vehicle, ensuring that the sweeper frame 10 can smoothly enter the vehicle. When the sweeper frame begins to descend to the outer end of the brush holder... When the bottom roller 354 contacts the upper edge of the carriage, as the sweeper frame 10 continues to move downward, the roller 354 is supported upward by the edge of the carriage, pushing the brush seat 351 to rotate upward around the hinge point C, forcing the horizontal bar 352 to gradually change from an inclined state to a horizontal state, which in turn causes the side brush 34 to gradually change from an initial inward tilt to a vertical state. Finally, when the sweeper frame descends to the predetermined working height, the side brush will be in close contact with the side wall of the carriage, facilitating subsequent side wall cleaning.

[0036] like Figure 7As shown, in this embodiment, the bottom brush mechanism 40 includes a bottom roller brush 41 driven by a motor and a pair of disc brushes 42. The bottom roller brush 41 is located at the bottom of the cleaning frame 10 and behind the suction head 21. The two disc brushes 42 are respectively connected to the bottom of the corresponding side roller brushes 32 and can move and rotate with the side roller brushes 32 on the same side. During operation, the bottom roller brush 41, located behind the suction head 21, rotates, pushing the material scattered on the bottom wall of the carriage forward to the feed inlet of the suction head 21. This makes the material easier to capture under the negative pressure of the suction head 21, improving the efficiency of the suction head 21 in absorbing material. The disc brushes 42 are connected to the bottom of the side roller brushes 32 and move with them, avoiding blind spots in cleaning. Their rotational motion can gather material from the front side towards the rear center area, further facilitating suction by the suction head.

[0037] like Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, a pair of vertical dust collection hoods 80 are also provided between the two side roller brushes 32. A dust collection hood rotation drive mechanism 81, connected to the corresponding dust collection hood 80, is installed on the second slide 332 to drive the dust collection hood 80 to rotate from the inside of the side roller brush 33 to the front of the corresponding side roller brush 32. The front part of the dust collection hood 80 has a vertically elongated suction port 82, and the air outlet 83 at the top is connected to a flexible hose 84. The flexible hose 84 is connected to the dust removal system 85. A brush 86 is connected to the outer edge of the suction port 82. Here, the dust collection hood rotation drive mechanism 81 can be a motor-driven gear rotation drive mechanism, which is prior art and will not be described in detail here.

[0038] In this way, when the side roller brushes 32 rotate under the drive of the motor to clean the side walls, they generate a large amount of dust. The dust collection hood 80 can directly capture the dust through the suction port 82, and the dust enters the dust removal system 85 through the top air outlet 83 and the hose 84, realizing the immediate collection and treatment of dust, reducing dust diffusion, and reducing environmental pollution. Secondly, when cleaning the front or rear side walls, the dust collection hood 80 is located between the two side roller brushes, and the brushes 86 of the dust collection hood 80 abut against the front or rear side wall, so that the cleaning area of ​​the side roller brushes forms a relatively closed environment, and the suction port 82 of the dust collection hood 80 faces the front or rear side wall (e.g., Figure 7 (As shown in the right-hand dust hood); when cleaning the left and right side walls, the dust hood 80 is driven to rotate in front of the corresponding side roller brush 32, wherein the brush 86 of the left-hand dust hood 80 rests against the left-hand wall and the suction port 82 faces the left-hand wall (as shown in the right-hand dust hood); Figure 7 As shown in the left-hand dust hood, the brush 86 on the right-hand dust hood 80 rests against the right wall, and the suction port also faces the right wall, creating a relatively enclosed environment that makes it easier for dust to be sucked in, significantly improving suction efficiency. Furthermore, while sealing the area, the brush 86 moves with the side roller brush 32 to assist in cleaning residual material from the side wall surface. Here, the brush 86 can be a wire brush.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, it also includes a movable gantry 9 and a support frame 8. A front and rear drive mechanism 70 is connected to the movable gantry 9. A carriage passage 901 is formed at the lower part of the movable gantry 9. This carriage passage 901 allows the movable gantry 9 to straddle the carriage and travel along its length. Here, the front and rear drive mechanism 70 can be driven by an electric motor. The sweeper frame 10 is mounted on the support frame 8 via a rotary drive mechanism 60. This rotary drive mechanism 60 can be a rotary motor drive mechanism. The lifting drive mechanism 50 includes two vertical drive motors 51. Vertical racks 53 are fixed on both sides of the frame passage 52 formed at the upper part of the movable gantry 9. Vertical drive motors 51 are mounted on both sides of the top of the support frame 8. Gears 54 that mesh with the corresponding vertical racks are mounted on the output shafts of the vertical drive motors 51. Thus, by synchronously starting the two vertical drive motors, the gears are driven to rotate, thereby causing the support frame to move up and down along the vertical racks.

[0040] like Figure 1 and Figure 2 As shown, in this embodiment, a separation and dust removal mechanism 90 and a fan are also provided on the movable gantry 9. The separation and dust removal mechanism 90 includes a hopper 91 and a dust collector 92 connected above the hopper 91. A discharge valve 96 is installed at the discharge port 93 at the bottom of the hopper 91. A telescopic material pipe 94 is connected to the front side of the dust collector 92, and an air duct 95 is connected to the upper part of its rear side. The air duct 95 is connected to the fan. The lower end of the telescopic material pipe 94 is connected to the suction head 21. In this embodiment, a Roots blower can be used as the fan. During operation, the negative pressure generated by the Roots blower will draw the mixture of residual material and air in the compartment into the separation and dust removal mechanism 90 through the telescopic material pipe 94. After the mixture enters the separation device, the material will fall into the hopper 91 under gravity, while the clean air will be discharged directly into the atmosphere through the exhaust port of the Roots blower via the ventilation pipe 95. Subsequently, by opening the discharge valve 96, the material in the hopper 91 falls into the material conveyor belt below, and is then transferred to the material storage hopper by the material conveyor belt.

[0041] The above describes a cleaning device of this utility model. During operation, the front and rear drive mechanisms 70 are activated, driving the moving gantry 9 to move the cleaning frame to the train carriage to be cleaned. The carriage is located in the carriage passage 901, ensuring that the cleaning frame 10 can smoothly enter the carriage for operation. Subsequently, the lifting drive mechanism 50 is activated, and the drive support frame 8 drives the sweeping frame 10 to descend. During the descent of the sweeping frame 10, the support component 35 drives the pair of side brushes 34 on the upper part of the sweeping frame 10 to spread outward and fit against the upper part of the left and right side walls of the carriage. When the sweeping frame descends to the bottom wall of the carriage, the roller brush drive component 33 pushes the pair of side roller brushes 32 at the bottom to move outward and contact the lower part of the left and right side walls of the carriage. At the same time, the dust hood rotation drive mechanism 81 drives the dust hood 80 to rotate in front of the corresponding side roller brush 32. The brushes 86 on the two dust hoods 80 press against the left and right side walls to form a closed environment, and suck up dust through the suction port 82, which enters the dust removal system 85 through the top air outlet 83 and the hose 84.

[0042] When cleaning the left and right side walls, the front and rear drive mechanism 70 drives the moving gantry to move the cleaning frame forward inside the compartment. The two side brushes 34 clean the residual materials on the upper part of the left and right side walls of the compartment, and the side roller brush 32 is driven by the motor to rotate and clean the residual materials on the lower part of the left and right side walls of the compartment. The bottom roller brush 41 rotates and pushes the materials on the bottom wall of the compartment forward to the suction head 21, making it easier for the suction head 21 to pick them up. At the same time, the suction head drive assembly 22 drives the suction head 21 to move left and right, which, together with the forward movement of the moving gantry 9, expands the suction range of the suction head.

[0043] When the sweeping frame 10 moves forward to the vicinity of the front side wall of the carriage, and the front side wall needs to be cleaned, the front and rear drive mechanism 70 stops. The roller brush drive assembly 33 drives a pair of side roller brushes 32 to move inward and fit against the lower part of the front side wall. During the inward movement of the pair of side roller brushes 32, the motor drives the side roller brushes to rotate continuously, cleaning the lower part of the front side wall. At the same time, the dust hood rotation drive mechanism 81 drives the dust hood 80 to rotate between the two side roller brushes 32. The brushes 86 on the two dust hoods 80 press against the front side wall to form a closed environment. The suction port 82 continues to suck up dust, which enters the dust removal system 85 through the top air outlet 83 and the hose 84. The roller brush drive assembly 33 drives the pair of side roller brushes 32 to move inward or outward multiple times, thereby cleaning the lower part of the front side wall multiple times. After the lower part of the front side wall is cleaned, the cleaning frame 10 is driven to rise by the lifting drive mechanism 50, which drives the side roller brush 32 to move up to the upper part of the front side wall. The motor drives the side roller brush to rotate continuously, and the roller brush drive assembly 33 drives a pair of vertical side roller brushes to move outward or inward, cleaning the upper part of the front side wall multiple times, thereby completing the cleaning of the front side wall of the carriage.

[0044] When cleaning the rear side wall, the lifting drive mechanism 50 first drives the cleaning frame 10 to rise and detach from the carriage. Then, the rotation drive mechanism 60 drives the cleaning frame 10 to turn, so that the side roller brush 32 faces the rear side wall of the carriage. Immediately afterwards, the lifting drive mechanism 50 drives the cleaning frame 10 to descend and re-enter the carriage. Afterward, the driving gantry 9 moves the cleaning frame 10 backward, repeating the front side wall cleaning action. During the backward movement of the cleaning frame, the side brushes 34 and side roller brushes 32 clean the left and right side walls again, while the bottom roller brushes 41 and disc brushes 42 can clean the bottom wall again, reducing residue. The mixture of material and air is absorbed by the suction head and enters the hopper 91 of the separation and dust removal mechanism 90 through the telescopic feed pipe 94. Some of the dust generated during the cleaning process enters the separation and dust removal mechanism 90 along with the material and air mixture through the suction head 21 and the telescopic feed pipe 94. Dust collector 92 separates dust and collects it into hopper 91; another portion is captured by the side suction port 82 of the dust hood 80 and enters the dust collection system 85 through the hose 84 to prevent dust diffusion. The material and dust collected in the hopper fall into the material conveyor belt below through the bottom discharge valve, and are then transferred to the material storage hopper by the material conveyor belt. After cleaning is completed, the side brushes and side roller brushes return to their original positions, the dust hood rotates to its initial position, the lifting drive mechanism drives the sweeper frame to rise and detach from the carriage, and the front and rear drive mechanisms drive the moving gantry to move the sweeper frame to the next train carriage to be cleaned.

[0045] In summary, this invention utilizes a negative pressure system formed by a fan and a separation and dust removal mechanism. Under negative pressure, the mixture of material and air passes through the suction head and enters the separation and dust removal mechanism along the telescopic material pipe. The material falls into the hopper, while the clean air is discharged directly into the atmosphere through the ventilation pipe and the fan's exhaust port. The synergistic effect of the side brush mechanism and the bottom brush mechanism comprehensively covers the side walls, bottom walls, and corners of the truck bed, avoiding blind spots. Combined with the suction nozzle mechanism, scattered materials are instantly picked up. The front and rear drive mechanisms drive the moving gantry, moving the sweeping frame back and forth. The lifting drive mechanism flexibly adjusts the height of the sweeping frame inside the truck bed, and the rotation drive mechanism allows the sweeping frame to steer, enabling back-and-forth cleaning of the truck bed's interior, thus ensuring the cleanliness of the truck bed's inner walls. Therefore, this integrated unloading and sweeping machine replaces manual labor in truck bed operations, significantly reducing labor intensity and greatly improving cleaning efficiency, making it particularly suitable for large-scale, batch truck bed cleaning scenarios.

[0046] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A cleaning device for cleaning a carriage, characterized in that, It includes a sweeping frame, a suction nozzle mechanism mounted on the sweeping frame for absorbing materials inside the carriage, a side brush mechanism for cleaning the side walls of the carriage, and a bottom brush mechanism for cleaning the bottom walls of the carriage. It also includes a lifting drive mechanism for driving the sweeping frame to rise and fall, a rotation drive mechanism for driving the sweeping frame to rotate, and a front and rear drive mechanism for driving the sweeping mechanism to move back and forth.

2. The cleaning device according to claim 1, characterized in that, The suction nozzle mechanism includes a suction head located at the bottom of the cleaning frame and a suction head drive assembly fixed on the cleaning frame for driving the suction head to move left and right, with the feed port of the suction head facing downwards.

3. The cleaning device according to claim 2, characterized in that, The suction head drive assembly includes sprockets located on both sides of the lower part of the sweeping frame and a chain sleeved on the two sprockets. A first motor for driving one of the sprockets to rotate is also fixed on the sweeping frame. First guide rails are provided on the upper and lower sides of the chain, and first slide blocks are slidably connected on the two first guide rails. The first slide blocks are connected to the chain, and the suction head is fixed on the first slide blocks.

4. The cleaning device according to claim 2, characterized in that, The side brush mechanism includes a pair of vertical side roller brushes driven by a motor and located in front of the sweeper frame, a roller brush drive assembly that drives the two side roller brushes to move closer or further apart, a pair of vertical side brushes located on both sides above the two side roller brushes, and a support assembly connected to the pair of side brushes. The support assembly can adaptively make the side brushes automatically adhere to the side wall.

5. The cleaning device according to claim 4, characterized in that, The roller brush drive assembly includes a second guide rail located at the middle of the front side of the sweeper frame. Two second slide blocks are slidably connected on the second guide rail. Two horizontal cylinders are arranged opposite each other on both sides of the front end face of the sweeper frame. The output ends of the two horizontal cylinders are respectively connected to the corresponding second slide blocks. The two side roller brushes are respectively fixed on the corresponding second slide blocks.

6. The cleaning device according to claim 4, characterized in that, The support assembly includes a pair of brush seats hinged to the left and right top corners of the sweeper frame and a pair of horizontal rods. The inner ends of the two horizontal rods are hinged together by a shaft, and the outer ends are respectively hinged to the corresponding brush seats. Rollers are installed at the bottom of the outer ends of the brush seats, and two side brushes are installed on the vertical rods of the corresponding brush seats.

7. The cleaning device according to claim 4, characterized in that, The bottom brush mechanism includes a bottom roller brush driven by a motor and a pair of disc brushes. The bottom roller brush is located at the bottom of the cleaning frame and behind the suction head. The two disc brushes are respectively connected to the bottom of the corresponding side roller brush and can move and rotate with the side roller brush on the same side.

8. The cleaning device according to claim 4, characterized in that, A pair of vertical dust collection hoods are also provided between the two side roller brushes. A dust collection hood rotation drive mechanism is installed on the second slide and connected to the corresponding dust collection hood for driving the dust collection hood to rotate from the inside of the side roller brush to the front of the corresponding side roller brush. The side of the dust collection hood has a vertically elongated suction port, and the air outlet at the top is connected to the dust removal system through a hose. A brush is connected to the outer edge of the suction port.

9. The cleaning device according to claim 2, characterized in that, It also includes a movable gantry and a support frame. The front and rear drive mechanisms are connected to the movable gantry, forming a carriage passage at the lower part of the movable gantry. The sweeper frame is mounted on the support frame via a rotary drive mechanism. The lifting drive mechanism includes two vertical drive motors. Vertical racks are fixed on both sides of the frame passage formed at the upper part of the movable gantry. The two vertical drive motors are respectively mounted on both sides of the top of the support frame. Gears that mesh with the corresponding vertical racks are mounted on the output shafts of the vertical drive motors.

10. The cleaning device according to claim 9, characterized in that, The movable gantry is also equipped with a separation and dust removal mechanism and a fan. The separation and dust removal mechanism includes a hopper and a dust collector connected above the hopper. A discharge valve is connected to the discharge port at the bottom of the hopper. A telescopic material pipe is connected to the front side of the dust collector and an air duct is connected to the rear side. The air duct is connected to the fan, and the lower end of the telescopic material pipe is connected to the suction head.

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