A road cleaning device
By designing a road sweeping device that combines a bucket and a vibration drive, the problem of mixing stone and powder was solved, achieving efficient sweeping and separation of stone materials and facilitating their recycling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LUQIAO GROUP CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-31
AI Technical Summary
When existing road sweeping equipment sweeps milled road surfaces, the stones and powder mix, resulting in poor sweeping effect and making it difficult to recycle the stones.
A road sweeping device was designed, which uses a combination of a bucket and a vibration drive component. The bucket's vibration motion separates stones and powder, and the dust is collected by a suction pipe, thus achieving the separation and recycling of stones and powder.
It improves the cleaning effect of gravel materials, achieves effective separation of gravel and powder, and facilitates the subsequent recycling of gravel materials.
Smart Images
Figure CN224578653U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cleaning equipment, and in particular to a road cleaning device. Background Technology
[0002] During the construction of new and old roads, the old road surface needs to be milled before the new road surface is laid. The old road surface after milling has a large amount of stone and powder scattered on it, which needs to be cleaned by road sweeping equipment.
[0003] For example, utility model patent application CN222139880U discloses a road sweeping device for road construction, which includes a housing with rotatable wheels mounted on the front and rear outer walls. A sweeping opening is provided at the bottom of the housing, and a sweeping roller is provided inside the housing, extending through the sweeping opening to the outside of the housing. A storage box is fixedly installed at the bottom inside the housing, and lifting components are also included on the front and rear sides of the housing. This device can control the contact between the sweeping bristles and the road, eliminating the need for frequent replacement of the sweeping roller.
[0004] However, the above-mentioned device still has the following drawbacks: the cleaning effect of the sweeping roller is not good because the stone material left by the milling road surface is poor, and the stone material and powder are mixed, which is not convenient for the later recycling of the stone material, thus limiting its use. Utility Model Content
[0005] In view of the shortcomings of the existing technology, this utility model provides a road sweeping device that improves the sweeping effect of gravel materials, realizes the separation of gravel materials and powder materials, and facilitates the subsequent recycling of gravel materials.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a road sweeping device, including a towing frame, a frame installed at the bottom of the towing frame, and a stone cleaning mechanism installed on the frame. A roller assembly is rotatably mounted at the bottom of the frame, and a dust collection hood is installed on the frame. A suction pipe is installed inside the dust collection hood. The stone cleaning mechanism includes a bucket hinged to the frame, an elastic support, and a vibration drive. The bucket is elastically connected to the frame via the elastic support. The vibration drive is used to drive the bucket to vibrate. Multiple guide teeth are arranged side-by-side on the side of the bucket away from the frame, with the height of the guide teeth increasing towards the bucket near the frame. The bucket gradually rises; a cavity is formed between the inner wall of the bucket and a set of guide teeth adjacent to the frame, and the bottom of the bucket is provided with multiple screen slots communicating with the cavity; furthermore, the traction frame is connected to an external traction vehicle; there are at least two sets of dust collection pipes, and both sets of dust collection pipes are connected to the input end of the dust collection mechanism such as the vacuum cleaner on the external traction vehicle; the bucket is located at the front of the frame on one side of the travel direction; the elastic support can be a spring or other equivalent component with elastic support effect, and the vibration drive component can be a vibrating motor; the width of the screen slots is smaller than the outer diameter of the stone to allow powder to pass through the screen slots and prevent the stone from leaking out through the screen slots; the bucket is hinged to the frame by hinges or pivots.
[0007] Preferably, the roller assembly includes at least two first rollers close to the bucket and two second rollers away from the bucket. The vibration drive includes a drive plate mounted on the bucket and a plurality of circumferentially distributed drive rods on the first rollers. The drive rods are used to drive the drive plate and the bucket to rotate around the hinge point between the bucket and the frame. Further, the two first rollers and the two second rollers are rotatably mounted on both sides of the frame. When one of the drive rods rotates to the lower part of the first roller and contacts the drive plate, the corresponding drive plate moves downward under the action of the drive rod.
[0008] Preferably, the elastic support includes a first telescopic cylinder and a spring. One end of the first telescopic cylinder is hinged to the frame, and the other end of the first telescopic cylinder is hinged to the bucket away from the frame. The spring is sleeved on the first telescopic cylinder, one end of the spring is fixedly connected to the fixed end of the first telescopic cylinder, and the other end of the spring is fixedly connected to the extended end of the first telescopic cylinder. The drive plate is slidably mounted on the bucket, and a second telescopic cylinder is installed on the bucket to provide power for the sliding of the drive plate. Further, both the first and second telescopic cylinders are preferably electric cylinders, but hydraulic cylinders or pneumatic cylinders can also be used. The first and second telescopic cylinders can be provided with telescopic kinetic energy through the power system, hydraulic system, or pneumatic system on an external tractor. When the bucket is in a horizontal state, the bottom of the bucket is higher than the bottom of the roller assembly. When the first telescopic cylinder is not activated, under the elastic force of the spring, the end of the bucket away from the frame tilts downward and contacts the road surface to be cleaned.
[0009] Preferably, the traction frame includes a fixed frame and a connecting frame, one end of the connecting frame is hinged to the frame, and the other end of the connecting frame is hinged to the fixed frame; further, the fixed frame is located above the frame and biased towards the side of the frame's travel direction, and the connecting frame is inclined at an angle of 30°-60° to the horizontal plane.
[0010] Preferably, a first spray pipe is installed at the bottom of the frame away from the bucket; further, the input end of the first spray pipe is connected to a pressurized water source on an external tractor.
[0011] Preferably, a spraying assembly is rotatably mounted on both sides of the frame. The spraying assembly includes a swing arm rotatably mounted on the frame, a second spray pipe fixedly mounted on the swing arm, a rotating plate fixedly mounted on the swing arm, and a third telescopic cylinder. One end of the third telescopic cylinder is hinged to the frame, and the other end of the third telescopic cylinder is hinged to the rotating plate. Further, the third telescopic cylinder is preferably an electric cylinder, but a hydraulic cylinder or a pneumatic cylinder can also be used. The third telescopic cylinder can be powered by a power system, hydraulic system, or pneumatic system on an external tractor. The input end of the second spray pipe is connected to a pressurized water source on an external tractor.
[0012] Preferably, a set of guide teeth near the frame is provided with an inclined slope; further, the inclined slope forms an angle of 120-150° with the bottom wall of the bucket.
[0013] Preferably, the bottom cavity of the bucket is provided with a groove, and there is a gap of at least 1 cm between the top wall of the groove and the road surface to be cleaned.
[0014] Compared with the prior art, this utility model provides a road sweeping device with the following beneficial effects: The road sweeping device has a towing frame installed on an external tractor. The external tractor drives the sweeping device to move on the road surface to be swept. The shovel end of the bucket contacts the road surface to be swept, and stones and some powder enter the bucket. The vibration drive drives the bucket to vibrate. During the vibration, the stones follow the bucket in up-and-down vibration, while the bucket moves forward relative to the stones. The stones gradually fall onto the guide tooth platform near the frame, and finally fall into the cavity. Some powder mixed in with the stones falls back onto the road surface through the screen during the bucket's vibration and enters the dust collection hood. An external suction fan sucks this powder, along with residual powder on the road surface, through a suction pipe to the external tractor, achieving the collection and cleaning of stones and powder, improving the sweeping effect of gravel, and separating the gravel and powder, facilitating the subsequent recycling of gravel. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the bottom-view planar structure of this utility model; Figure 3 This is the utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA; Figure 4 This is the utility model Figure 1 A magnified schematic diagram of the structure at point B in the middle; The following are labels in the attached diagram: 1. Frame; 2. Dust collection hood; 3. Dust suction pipe; 4. Bucket; 5. Inlet toothed table; 6. Screen slot; 7. First roller; 8. Second roller; 9. Drive plate; 10. Drive rod; 11. First telescopic cylinder; 12. Spring; 13. Fixing frame; 14. Connecting frame; 15. First spray pipe; 16. Swing arm; 17. Second spray pipe; 18. Rotating plate; 19. Third telescopic cylinder; 20. Inclined slope; 21. Groove; 22. Second telescopic cylinder. Detailed Implementation
[0016] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0017] As described in the background art, a road sweeping device for road construction has certain limitations in its application because the stones generated by milling the road surface are not effectively swept by the sweeping roller, and the stones and powder are mixed, making it difficult to recycle the stone materials later.
[0018] To solve this technical problem, this utility model provides a road sweeping device, which is applied to the sweeping treatment of road surfaces after milling.
[0019] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0021] Example 1 Please refer to Figure 1-3A road sweeping device, specifically comprising: a towing frame, a frame 1 installed at the bottom of the towing frame, and a stone cleaning mechanism installed on the frame 1. A roller assembly is rotatably installed at the bottom of the frame 1, and a dust collection hood 2 is installed on the frame 1. A dust collection pipe 3 is installed on the dust collection hood 2 and communicates with the inside of the dust collection hood 2. The stone cleaning mechanism includes a bucket 4 hinged to the frame 1, an elastic support, and a vibration drive. The bucket 4 is elastically connected to the frame 1 through the elastic support. The vibration drive is used to drive the bucket 4 to vibrate. Multiple guide tooth platforms 5 are arranged side by side on the side of the bucket 4 away from the frame 1. The height of the multiple guide tooth platforms 5 gradually increases towards the bucket 4 near the frame 1. A cavity is formed between the inner wall of the bucket 4 and a set of guide teeth 5 adjacent to the frame 1. The bottom of the bucket 4 is provided with multiple screen slots 6 communicating with the cavity. Furthermore, the traction frame is connected to an external traction vehicle. There are at least two sets of dust suction pipes 3, and both sets of dust suction pipes 3 are connected to the input end of the dust suction mechanism such as the suction fan on the external traction vehicle. The bucket 4 is located at the front of the frame 1 on the side of the travel direction. The elastic support can be a spring 12 or other equivalent component with elastic support effect. The vibration drive component can be a vibration motor. The width of the screen slots 6 is smaller than the outer diameter of the stone to allow powder to pass through the screen slots 6 and prevent the stone from leaking out through the screen slots 6. The bucket 4 is hinged to the frame 1 by a hinge or hinge shaft.
[0022] For details, please refer to Figure 3 The bottom cavity of the bucket 4 is provided with a groove 21, and there is a gap of at least 1 cm between the top wall of the groove 21 and the road surface to be cleaned.
[0023] For details, please refer to Figure 2 A first spray pipe 15 is installed at the bottom of the frame 1, away from the bucket 4; furthermore, the input end of the first spray pipe 15 is connected to a pressurized water source on an external tractor.
[0024] For details, please refer to Figures 1-2 Spraying assemblies are rotatably mounted on both sides of the frame 1. The spraying assemblies include a swing arm 16 rotatably mounted on the frame 1, a second spray pipe 17 fixedly mounted on the swing arm 16, a rotating plate 18 fixedly mounted on the swing arm 16, and a third telescopic cylinder 19. One end of the third telescopic cylinder 19 is hinged to the frame 1, and the other end of the third telescopic cylinder 19 is hinged to the rotating plate 18. Furthermore, the third telescopic cylinder 19 is preferably an electric cylinder, but a hydraulic cylinder or a pneumatic cylinder can also be used. The third telescopic cylinder 19 can be provided with telescopic kinetic energy through the power system, hydraulic system, or pneumatic system on the external tractor vehicle. The input end of the second spray pipe 17 is connected to a pressurized water source on the external tractor vehicle.
[0025] The road sweeping device provided in this embodiment has a gap between the bottom of the groove 21 and the road surface to be swept, which allows the powder screened out in the bucket 4 to fall back onto the road surface. This avoids the gap between the bottom of the bucket 4 and the road surface being too small, which would affect the smooth falling of the powder in the cavity and ensure that the powder in the stone is smoothly screened out. Water is pumped into the first spray pipe 15 and the second spray pipe 17 by a pressure pump on an external tractor. The water sprayed from the output end of the first spray pipe 15 can suppress the dust flying in the dust collection hood 2. During the extension and retraction of the output end of the third telescopic cylinder 19, the rotating plate 18 is driven to rotate. The rotating plate 18 drives the swing arm 16 and the second spray pipe 17 on the swing arm 16 to rotate. The water sprayed from the output end of the second spray pipe 17 can suppress the dust on both sides of the frame 1 in the direction of travel, so as to reduce the dust from flying around and make it more environmentally friendly.
[0026] Example 2 The road sweeping device provided in Example 1 has been further optimized. For details, please refer to [link / reference]. Figures 2-3 The roller assembly includes at least two first rollers 7 close to the bucket 4 and two second rollers 8 far from the bucket 4. The vibration drive includes a drive plate 9 mounted on the bucket 4 and multiple circumferentially distributed drive rods 10 on the first rollers 7. The drive rods 10 are used to drive the drive plate 9 and the bucket 4 to rotate around the hinge point between the bucket 4 and the frame 1. Furthermore, the two first rollers 7 and the two second rollers 8 are rotatably mounted on both sides of the frame 1. When one drive rod 10 rotates to the lower part of the first roller 7 and contacts the drive plate 9, the corresponding drive plate 9 moves downward under the action of the drive rod 10. It should be noted that the height of the scooping end of the bucket 4 should be lower than the outer diameter of the stone to reduce the stone from "escaping" from the bottom of the bucket 4 and ensure the thorough cleaning of the stone on the road surface.
[0027] For details, please refer to Figure 4 The elastic support includes a first telescopic cylinder 11 and a spring 12. One end of the first telescopic cylinder 11 is hinged to the frame 1, and the other end of the first telescopic cylinder 11 is hinged to the bucket 4 away from the frame 1. The spring 12 is sleeved on the first telescopic cylinder 11. One end of the spring 12 is fixedly connected to the fixed end of the first telescopic cylinder 11, and the other end of the spring 12 is fixedly connected to the extended end of the first telescopic cylinder 11. A second telescopic cylinder 22 is installed on the bucket 4 to provide power for the sliding of the drive plate 9. Furthermore, both the first telescopic cylinder 11 and the second telescopic cylinder 22 are preferably electric cylinders, but hydraulic cylinders or pneumatic cylinders can also be used. The first telescopic cylinder 11 and the second telescopic cylinder 22 can be provided with telescopic kinetic energy through the power system, hydraulic system or pneumatic system on the external tractor. When the bucket 4 is in a horizontal state, the bottom of the bucket 4 is higher than the bottom of the roller assembly. When the first telescopic cylinder 11 is not activated, under the elastic force of the spring 12, the end of the bucket 4 away from the frame 1 tilts downward and contacts the road surface to be cleaned. A slide rail is installed on the bucket 4, and the drive plate 9 is slidably installed on the slide rail.
[0028] For details, please refer to Figure 1 or Figure 3 The towing frame includes a fixed frame 13 and a connecting frame 14. One end of the connecting frame 14 is hinged to the frame 1, and the other end of the connecting frame 14 is hinged to the fixed frame 13. Furthermore, the fixed frame 13 is located above the frame 1 and biased towards the side of the frame 1's travel direction, and the connecting frame 14 is inclined at an angle of 30°-60° to the horizontal plane. The fixed frame 13 is used for fixed connection with an external towing vehicle.
[0029] For details, please refer to Figure 3 An inclined slope 20 is provided on a set of guide gears 5 near the frame 1; furthermore, the inclined slope 20 forms an angle of 120-150° with the inner bottom wall of the bucket 4.
[0030] In this embodiment, the road sweeping device, when driven by an external tractor, has its first roller 7 and second roller 8 in contact with and rolling on the road surface. Multiple drive rods 10 on the first roller 7 frequently contact and disengage from the drive plate 9. The drive plate 9, pushed by the drive rods 10, swings up and down, causing the bucket 4 to swing around the hinge point of the frame 1. This achieves vibration drive for the bucket 4, eliminating the need for an external vibration motor or similar device to provide vibration power to the bucket 4. The structure is scientifically designed and more energy-efficient. During the process of cleaning road stones, the first telescopic cylinder 11 is in a non-activated state. In the active state, spring 12 is in its naturally extended state. Under the action of spring 12, the shoveling end of bucket 4 can be made to contact the road surface, ensuring that bucket 4 falls smoothly to the road surface after being raised, and reducing the amount of stone entering between bucket 4 and the road surface. When a certain amount of stone is collected in the cavity, the output end of the first telescopic cylinder 11 extends, the output end of the second telescopic cylinder 22 shortens, and the drive plate 9 moves away from the movement trajectory of the drive rod 10 to prevent the drive rod 10 from interfering with the movement of the drive plate 9. As the output end of the first telescopic cylinder 11 gradually extends, the angle between the inner bottom wall of bucket 4 and the horizontal plane gradually increases (refer to the rotation direction of bucket 4). Figure 3 (At the point indicated by the middle arrow), the tilt angle of the bucket 4 is increased, allowing the collected stones in the upper cavity of the bucket 4 to slide out, achieving automatic unloading of the collected stones without manual intervention and improving the convenience of unloading stones from the cavity. Meanwhile, the inclined slope 20... Figure 3 When the shown state is rotated to the downward tilting state, the action of the inclined slope 20 can reduce the residue of stone in the cavity. At the same time, the action of the inclined slope 20 can provide a certain throwing speed for the stone sliding in the cavity, so as to reduce the stone falling into the gap of the guide tooth table 5. When the bucket 4 is discharging stone and is in the tilting state, the end of the frame 1 near the bucket 4 is in the tilted state, and the connecting frame 14 can allow the end of the frame 1 near the bucket 4 to tilt upward, so as to avoid the traction frame interfering with the movement of the tilted end of the frame 1 during the process of discharging stone in the bucket 4.
[0031] The road sweeping device provided by this utility model is used as follows: The towing frame is installed on the external towing vehicle. The external towing vehicle drives the sweeping device to move on the road surface to be swept. The shoveling end of the bucket 4 contacts the road surface to be swept. Stones and some powder enter the shoveling end of the bucket 4. During the movement of the frame 1, the first roller 7 and the second roller 8 are rotated. The drive rod 10 on the first roller 7 frequently contacts and disengages from the drive plate 9. The drive plate 9 drives the bucket 4 to vibrate. During the vibration, the stones follow the bucket 4 to vibrate up and down. The bucket 4 moves forward relative to the stones. The stones gradually fall onto the guide tooth platform 5 near the frame 1. Finally, the stones fall into the cavity. Some powder mixed in with the stones falls back to the road surface through the screen 6 during the vibration of the bucket 4 and enters the dust collection hood 2. The external suction fan sucks this part of the powder and the residual powder on the road surface to the external towing vehicle through the dust suction pipe 3, realizing the collection and cleaning of stones and powder.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
Claims
1. A road sweeping device, characterized by comprising: The device includes a traction frame, a frame (1) installed at the bottom of the traction frame, and a stone cleaning mechanism installed on the frame (1). A roller assembly is rotatably installed at the bottom of the frame (1). A dust collection hood (2) is installed on the frame (1). A dust collection pipe (3) connected inside the dust collection hood (2) is installed on the dust collection hood (2). The stone cleaning mechanism includes a bucket (4) hinged to the frame (1), an elastic support, and a vibration drive. The bucket (4) is elastically connected to the frame (1) through the elastic support. The vibration drive is used to drive the bucket (4) to vibrate. Multiple guide tooth platforms (5) are arranged side by side on the side of the bucket (4) away from the frame (1). The height of the multiple guide tooth platforms (5) gradually increases towards the bucket (4) near the frame (1). A cavity is formed between the inner wall of the bucket (4) and a set of guide tooth platforms (5) near the frame (1). Multiple screen slots (6) communicating with the cavity are provided at the bottom of the bucket (4).
2. The road cleaning device according to claim 1, characterized in that The roller assembly includes at least two first rollers (7) close to the bucket (4) and two second rollers (8) away from the bucket (4). The vibration drive includes a drive plate (9) mounted on the bucket (4) and a plurality of circumferentially distributed drive rods (10) evenly distributed on the first rollers (7). The drive rods (10) are used to drive the drive plate (9) and the bucket (4) to rotate around the hinge point between the bucket (4) and the frame (1).
3. The road cleaning device according to claim 2, characterized in that The elastic support includes a first telescopic cylinder (11) and a spring (12). One end of the first telescopic cylinder (11) is hinged to the frame (1), and the other end of the first telescopic cylinder (11) is hinged to the bucket (4) away from the frame (1). The spring (12) is sleeved on the first telescopic cylinder (11). One end of the spring (12) is fixedly connected to the fixed end of the first telescopic cylinder (11), and the other end of the spring (12) is fixedly connected to the extended end of the first telescopic cylinder (11). The drive plate (9) is slidably mounted on the bucket (4), and a second telescopic cylinder (22) is mounted on the bucket (4) to provide power for the sliding of the drive plate (9).
4. The road cleaning device according to claim 3, characterized in that The traction frame includes a fixed frame (13) and a connecting frame (14). One end of the connecting frame (14) is hinged to the frame (1), and the other end of the connecting frame (14) is hinged to the fixed frame (13).
5. The road cleaning device according to claim 1, wherein The first spray pipe (15) is installed at the bottom of the frame (1) away from the bucket (4).
6. The road cleaning device according to claim 5, wherein Spraying assemblies are rotatably mounted on both sides of the frame (1). The spraying assemblies include a swing arm (16) rotatably mounted on the frame (1), a second spray pipe (17) fixedly mounted on the swing arm (16), a rotating plate (18) fixedly mounted on the swing arm (16), and a third telescopic cylinder (19). One end of the third telescopic cylinder (19) is hinged to the frame (1), and the other end of the third telescopic cylinder (19) is hinged to the rotating plate (18).
7. The road cleaning device according to claim 3, wherein An inclined ramp (20) is provided on a set of guide gears (5) near the frame (1).
8. The road cleaning device according to claim 1, characterized by The projection of the bottom cavity of the bucket (4) is provided with a recess part (21), and the inner top wall of the recess part (21) is spaced apart from the road surface to be cleaned by at least 1 cm.