Rear-stage sweeping system of road sweeper

Abstract

The utility model provides a rear-stage sweeping system of a road sweeper, which is characterized in that a belt-type rolling brush with a high front part and a low rear part is erected on a group of rollers on a rolling brush support frame, an inclined support plate is arranged below the belt-type rolling brush, and bristles on the lower belt surface of the belt-type rolling brush are kept in contact with the top surface of the inclined support plate; the rear ends of the rolling brush supporting frame, the belt type rolling brush and the inclined supporting plate rotate and swing downwards around the roller at the foremost end to the trundles of the inclined supporting plate to touch the ground, the rear end of the inclined supporting plate abuts against the ground, and bristles of the belt type rolling brush make contact with the ground behind the rear end of the inclined supporting plate when rotating to the bottommost portion. The rear-stage sweeping system is used for further sweeping small garbage which falls down from the front-stage sweeping system and is attached to the ground, and in the working process, the small garbage attached to the ground is swept forwards into the inclined supporting plate through the rotary belt type rolling brush, and the garbage is swept and conveyed to the upper portion of the front side along the top face of the inclined supporting plate in a brushing mode. The rear-stage sweeping system is simple in structural design, stable in work and operation and good in sweeping and conveying effect on small garbage attached to the ground.

Description

A post-sweeping system for a road sweeper Technical Field

[0001] This utility model relates to components of a road sweeper, specifically a rear-stage sweeping system installed below the middle of the main beam of the road sweeper frame, belonging to the technical field of sanitation machinery and equipment. Background Technology

[0002] The applicant's prior Chinese patent CN202420583249.9 discloses a novel energy-saving and environmentally friendly road sweeper. Two garbage sweeping heads are mounted on the front crossbeam of the vehicle frame; two opposing garbage rolling brushes are mounted on the middle of the lower part of the frame; and a garbage collection conveyor is mounted on the rear of the lower part of the frame. The garbage collection conveyor has a front-to-back connecting roller brush conveying structure and a spiral conveying structure, with the conveying pipe of the spiral conveying structure extending to the onboard garbage bin. During operation, the garbage sweeping heads first sweep the garbage from the left and right sides of the front of the vehicle towards the center line, then the garbage rolling brushes sweep the garbage from the left and right sides of the underside of the vehicle towards the center line. Finally, the garbage collection conveyor, using a combination of roller brush conveying and spiral conveying, transports the garbage swept to the center line of the underside of the vehicle upwards to the onboard garbage bin for collection.

[0003] In the aforementioned patent, the cleaning components of the garbage sweeper include a three-level configuration of two garbage sweeping heads, two garbage rolling brushes, and a garbage collection conveyor. The overall structure is relatively complex and the manufacturing cost is high. Therefore, the applicant has upgraded and optimized the cleaning components of this garbage sweeper, improving the three-level configuration into a front and rear two-level cleaning system that is completely installed below the middle of the frame beam. The front cleaning system is equipped with two improved garbage sweeping heads that rotate and brush, continuously feeding the swept garbage into the garbage conveyor belt, which then transports the garbage to the receiving hopper on the upper rear side. Because the front-stage sweeping system uses a vertical rotating brush head, some small pieces of debris that are close to the ground may not be swept up and sent into the conveyor belt when feeding the waste. Therefore, a rear-stage sweeping system is set up behind the front-stage sweeping system, consisting of a belt-type rolling brush with a higher front and a lower rear and an inclined plate. The belt-type rolling brush sweeps the small pieces of debris that are close to the ground that fall from the front-stage sweeping system forward into the inclined plate and then sweeps and transports the debris along the inclined plate to the front and upper side. Summary of the Invention

[0004] The purpose of this utility model is to provide a rear-stage sweeping system for a road sweeper, which is installed at the lower rear of the middle of the frame beam and is used to sweep and transport small debris that is attached to the ground from the front-stage sweeping system forward to the upper front side.

[0005] The specific technical solution of this utility model is as follows:

[0006] A rear-stage cleaning system for a road sweeper includes a roller brush support frame with a front-high, rear-low angled design. The support frame supports a ring of belt-type rolling brushes with a front-high, rear-low angled configuration via a set of horizontally oriented rollers. The foremost roller is supported by bearings on a fixed bracket below the vehicle frame beam. A drive motor, via a reduction mechanism, rotates the foremost roller, causing the lower surface of the belt-type rolling brush to move from the rear-lower to the front-upper direction. The belt-type rolling brush has a wide conveyor belt with multiple rows of outwardly extending bristles evenly distributed on its surface. Below the lower surface of the belt-type rolling brush is an inclined support plate with a front-high, rear-low angled configuration parallel to the lower surface. The inclined support plate has two sides... The brush is fixedly connected to the roller brush support frame by the extended side pull rod. The bristles on the lower surface of the belt roller brush keep in contact with the top surface of the inclined plate. The left and right sides of the middle of the inclined plate are fixedly connected to casters that extend downward for ground support and are height adjustable. The roller brush support frame, belt roller brush and the rear end of the inclined plate rotate downward around the front roller until the casters touch the ground and the rear end of the inclined plate rests against the ground. When the bristles of the belt roller brush rotate to the bottom, they contact the ground behind the rear end of the inclined plate. The rotating belt roller brush sweeps the small debris on the ground forward into the inclined plate and sweeps and transports the debris along the top surface of the inclined plate to the front upper side.

[0007] The rear-stage sweeping system of this road sweeper is installed at the rear of the lower middle section of the chassis beam, directly behind the front-stage sweeping system. It is used to further clean up small debris adhering to the ground that has fallen from the front-stage system. During operation, a rotating belt brush sweeps the small debris forward onto a ramp, then along the top surface of the ramp to the upper front. This rear-stage sweeping system features a simple design, stable operation, and excellent cleaning and conveying effect for small debris adhering to the ground. Positioned behind the front-stage system as a supplementary cleaning measure, it allows the road sweeper to achieve better ground cleaning results. Attached Figure Description

[0008] Figure 1 is a three-dimensional structural diagram of the rear-stage cleaning system of this road sweeper.

[0009] Figure 2 is the right-side facing view shown in Figure 1.

[0010] Figure 3 is a top view of the surface shown in Figure 1.

[0011] Figure 4 is a three-dimensional structural diagram of Figure 1 when the back is rotated to face forward.

[0012] Figure 5 is an exploded view of the components in Figure 4.

[0013] Figure 6 shows a right-side view of the rear-stage cleaning system of this road sweeper installed behind the chassis beam.

[0014] In the diagram: 1-Roller support frame, 2-Roller, 3-Belt roller brush, 4-Slanted support plate, 4.1-Side tie rod, 4.2-Cast wheel, 4.3-Wear-resistant rubber plate, 4.4-Vertical enclosure, 5-Receiving hopper, 5.1-Baffle plate, 6-Spiral conveyor pipeline, 6.1-Spiral conveyor blade, 7-Electric lifting rod. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings. In the description of the present invention, the directional terms "front", "rear", "left", "right", "up" and "down" are defined based on the directions indicated in Figures 1, 4 and 5 of the accompanying drawings, which adopt the perspective of the road sweeper driver.

[0016] As shown in Figures 1-6, the rear-stage sweeping system of this road sweeper is equipped with a roller brush support frame 1 that is tilted from front to back. The roller brush support frame 1 supports a ring of belt-type rolling brushes 3 that are tilted from front to back through a set of horizontally transverse rollers 2. The foremost roller 2 is supported by bearings on a fixed bracket under the frame beam. The drive motor drives the foremost roller 2 to rotate through a reduction mechanism, so that the lower surface of the belt-type rolling brush 3 moves from the rear bottom to the front top. The belt-type rolling brush 3 is equipped with a wide conveyor belt, and multiple rows of outwardly extending bristles are evenly distributed on the surface of the conveyor belt. Below the lower surface of the belt-type rolling brush 3, there is a sloping support plate 4 that is tilted from front to back and parallel to the lower surface of the belt. The left and right sides of the sloping support plate 4 are connected by upward extensions. The side pull rod 4.1 is fixedly connected to the roller brush support frame 1 as a whole. The bristles on the lower surface of the belt roller brush 3 are in contact with the top surface of the inclined support plate 4. The left and right sides of the middle of the inclined support plate 4 are fixedly connected to casters 4.2 that extend downward for ground support and are height adjustable. The roller brush support frame 1, the belt roller brush 3 and the rear end of the inclined support plate 4 rotate downward around the frontmost roller 2 until the caster 4.2 touches the ground and the rear end of the inclined support plate 4 rests against the ground. When the bristles of the belt roller brush 3 rotate to the bottom, they contact the ground behind the rear end of the inclined support plate 4. The rotating belt roller brush 3 sweeps the small garbage that is in contact with the ground forward into the inclined support plate 4 and sweeps and transports the garbage along the top surface of the inclined support plate 4 to the front upper side.

[0017] Furthermore, electric lifting rods 7 are provided on the left and right sides of the rear of the roller brush support frame 1. The seat of the electric lifting rod 7 is installed on the frame beam. The telescopic end of the electric lifting rod 7 extends downward and is connected to the rear of the roller brush support frame 1 through a hanging chain. The electric lifting rod 7 controls the rear ends of the roller brush support frame 1, the belt roller brush 3 and the inclined support plate 4 to be lifted or lowered together around the frontmost roller 2, so that the rear end of this rear-stage cleaning system can be lifted off the ground when not in operation.

[0018] Furthermore, the rear end of the inclined support plate 4 is provided with a wear-resistant rubber plate 4.3 as an end, so that the rear end of the inclined support plate 4 can form a soft contact with the ground.

[0019] Furthermore, vertical enclosures 4.4 are provided on the left and right sides of the top surface of the inclined plate 4 to protect it from falling outward from the side of the inclined plate 4 during the sweeping and conveying process along the top surface of the inclined plate 4.

[0020] Furthermore, the side tie rods 4.1 on the left and right sides of the inclined support plate 4 are fixedly connected to the corresponding screws on both sides of the roller brush support frame 1 through elongated holes, so that the distance between the inclined support plate 4 and the lower surface of the belt roller brush 3 can be adjusted during installation, so that the bristles of the lower surface of the belt roller brush 3 can maintain effective contact with the top surface of the inclined support plate 4, ensuring the brushing and conveying effect.

[0021] Furthermore, a receiving hopper 5 shared with the front cleaning system is installed below the front end of the inclined plate 4. A spiral conveying pipe 6 for conveying to the rear stage is connected to the side of the bottom of the receiving hopper 5. The spiral conveying blades 6.1 of the spiral conveying pipe 6 extend into the receiving hopper 5 and are driven by the drive motor through the reduction mechanism.

[0022] Furthermore, a horizontally positioned baffle plate 5.1 is installed on the upper part of the receiving hopper 5 in front of the corresponding inclined support plate 4 and the front end of the belt-type rolling brush 3. The baffle plate 5.1 blocks the garbage swept out by the belt-type rolling brush 3 through the front end of the inclined support plate 4 and causes it to fall automatically into the receiving hopper 5.

[0023] This rear-stage cleaning system is installed at the rear of the lower middle section of the vehicle frame beam, directly behind the front-stage cleaning system. It is used to further clean up small debris that has fallen onto the ground from the front-stage system. When the rear-stage cleaning system is in operation, the rotary drive motor rotates the belt brush 3 and the spiral conveyor blades 6.1 in place. The belt brush 3 sweeps the small debris onto the ground forward into the inclined support plate 4, and then along the top surface of the inclined support plate 4, the debris is brushed and conveyed to the upper front for output. The output debris is blocked by the baffle plate 5.1 above the receiving hopper 5 and automatically falls into the receiving hopper 5. The spiral conveyor blades 6.1 then transport the debris in the receiving hopper 5 through the spiral conveyor pipe 6 to the garbage bin above the vehicle frame beam.

[0024] The above illustrations are merely typical embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A post-sweeping system for a road sweeper, characterized in that: The subsequent cleaning system is equipped with a roller brush support frame that is tilted at the front and lower at the rear. The roller brush support frame supports a ring of belt-type rolling brushes that are tilted at the front and lower at the rear via a set of horizontal rollers. The foremost roller is supported by bearings on a fixed bracket under the vehicle frame beam. A drive motor drives the foremost roller to rotate via a reduction mechanism, causing the lower surface of the belt-type rolling brush to move from the rear lower to the front upper. The belt-type rolling brush is equipped with a wide conveyor belt, and multiple rows of outwardly extending bristles are evenly distributed on the belt surface. Below the lower surface of the belt-type rolling brush is a front-high, rear-low... A slanted support plate parallel to the lower belt surface is fixedly connected to the roller brush support frame on both sides by an upward-extending side tie rod. The bristles of the lower belt surface of the belt roller brush are in contact with the top surface of the slanted support plate. Casters that extend downward for ground support and are height adjustable are fixedly connected to the left and right sides of the middle of the slanted support plate. The roller brush support frame, the belt roller brush, and the rear end of the slanted support plate rotate downward around the frontmost roller until the casters touch the ground, and the rear end of the slanted support plate rests against the ground. When the bristles of the belt roller brush rotate to the bottom, they contact the ground behind the rear end of the slanted support plate.

2. The post-sweeping system of the road sweeper according to claim 1, characterized in that: Electric lifting rods are also provided on the left and right sides of the rear of the roller brush support frame. The seat of the electric lifting rod is installed on the frame beam. The telescopic end of the electric lifting rod extends downward and is connected to the rear of the roller brush support frame through a hanging chain. The electric lifting rod controls the rear end of the roller brush support frame, the belt roller brush and the inclined support plate to be lifted or lowered together around the frontmost roller.

3. The rear cleaning system of a road sweeper according to claim 1, characterized in that: The rear end of the inclined plate is provided with a wear-resistant rubber plate as the end.

4. The rear cleaning system of a road sweeper according to claim 1, characterized in that: The top surface of the inclined support plate is protected by vertical panels on both the left and right sides.

5. The rear cleaning system of a road sweeper according to claim 1, wherein: The side tie rods on the left and right sides of the inclined plate are fixedly connected to the corresponding screws on both sides of the roller brush support frame through elongated holes.

6. The post-sweeping system of the road sweeper according to claim 1, characterized in that: in A receiving hopper shared with the front cleaning system is installed below the front end of the inclined plate. A spiral conveying pipeline for conveying to the rear stage is connected to the side of the bottom of the receiving hopper. The spiral conveying blades of the spiral conveying pipeline extend into the receiving hopper and are driven by the drive motor through the reduction mechanism.

7. The post-sweeping system of the road sweeper according to claim 6, characterized in that: The upper part of the receiving hopper is equipped with a horizontally upright baffle plate in front of the corresponding inclined support plate and the front end of the belt-type rolling brush.

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