Road repairing and flattening device
By introducing liftable arc buckets and servo motor-driven Z-shaped scrapers into the flattening device, the problem of flattening roller instability caused by filling accumulation is solved, and efficient and automated road repair and flattening is achieved, improving the flattening quality and efficiency.
Patent Information
- Application Number
- CN202521599593.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-30
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2035-07-30
AI Technical Summary
In the prior art, excessive accumulation of fillers causes unstable working of the flattening roller, which is prone to lift or bump, affects the quality and efficiency of the flattening, and requires manual intervention, hindering the automation process.
A road repair and flattening device including a liftable arc bucket and a scraping flattening assembly is designed. The hydraulic cylinder is used to control the arc bucket to adjust the height. The scraping flattening assembly drives the Z-shaped scraper rotation through a servo motor to realize automatic shoveling and scraping flattening of the filler to ensure the smooth operation of the flattening roller.
It effectively eliminates the lifting and bumps caused by material accumulation of flattening rollers, improves the quality and efficiency of flattening, reduces manual intervention, and improves the level of automation.
Smart Images

Figure CN223281172U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of road repair, in particular to a road repair and flattening device. Background Art
[0002] With the increase in the number of vehicles per capita, cracks often appear on urban roads during use. When repairing, a certain amount of filler is generally filled into the cracks, and the filler in the cracks is flattened by a pressing roller used for road repair. After the road is repaired and flattened, it is necessary to wait for the filler material to cool down naturally before opening to traffic. In summer, the temperature is high, and the natural cooling time is long, which affects the driving of traffic vehicles. In addition, debris will adhere to the surface of the flattening roller during operation, and it is necessary to clean the debris on the surface of the flattening roller, which is time-consuming and labor-intensive. To solve this problem, the patent document with publication number CN221029501U adopts a flattening roller to roll on the road surface to flatten the filler, and provides multiple spray pipes to spray the filler on the cracks after repair, which is beneficial to the maintenance of the cracks, and can also cool the filler, which is beneficial to the filler to quickly take shape in the cracks.
[0003] However, when filling materials are added to cracks, they are usually piled high to form a small slope. If there is a lot of filler and the slope is high, it is easy for the flattening roller to tilt or have large bumps during the flattening process, resulting in uneven pressing. Sometimes, workers even need to use a shovel or rake to flatten the accumulated filler so that the flattening roller can pass through, which is very troublesome. Therefore, excessively accumulated filler will hinder the smooth operation of the flattening roller, resulting in poor flattening quality or the need for manual intervention, becoming a bottleneck in improving road repair efficiency and automation level.
[0004] In order to solve the above problems, it is necessary to improve the connection structure between the side wind and the water tank based on the structure with publication number CN221029501U to solve the above technical problems. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a road repair and flattening device.
[0006] The road repair and flattening device provided by the utility model comprises a mounting plate, L-shaped side plates are fixedly mounted on both sides of the mounting plate, and a liftable U-shaped frame is set between the two L-shaped side plates;
[0007] A curved bucket is fixedly mounted on the front plate of the U-shaped frame;
[0008] A scraping assembly is mounted inside the U-shaped frame, and the scraping assembly includes a mounting plate, which is fixed to the U-shaped frame by screws, and two symmetrically distributed and rotatably connected rotating rods are installed on the mounting plate, and multiple Z-shaped scrapers are installed on the rotating rods, and a driving member for driving the rotating rods to rotate is installed on the mounting plate.
[0009] Preferably, an annular groove is provided on the rod wall of the rotating rod near the bottom, and a sleeve tube and a spring are sleeved on the rotating rod with the annular groove.
[0010] A plurality of Z-shaped scrapers are fixedly mounted on the sleeve and distributed in an annular manner around the sleeve.
[0011] Preferably, in the multiple annularly distributed and axially arranged grooves opened in the annular groove, the inner tube wall of the sleeve is fixedly embedded with multiple annularly distributed convex plates, and the convex plates are inserted into the corresponding grooves and slidably connected to the grooves.
[0012] Preferably, one end of the spring is fixedly connected to the inner top wall of the annular groove, and the other end of the spring is fixedly connected to the upper tube wall of the sleeve.
[0013] Preferably, the driving member includes a sprocket, two of which are provided, and the two sprockets are respectively fixedly mounted on the rod heads of two rotating rods, the two sprockets are driven by chain meshing, a servo motor is fixedly mounted on the mounting plate through a frame, and the output end of the servo motor is fixedly connected to the connecting end of any one of the sprockets.
[0014] Preferably, a hydraulic cylinder is fixedly mounted on each of the L-shaped side panels, and the output end of the hydraulic cylinder is vertically upward and fixedly connected to the side frame plate of the U-shaped frame.
[0015] Preferably, a guide rod is fixedly mounted on each of the L-shaped side panels, and the guide rod passes through a through hole provided in the U-shaped frame side panel and is slidably connected to the through hole.
[0016] Compared with related technologies, the road repair and flattening device provided by the present invention has the following beneficial effects:
[0017] 1. The utility model uses a liftable arc-shaped bucket to flatten and disperse the over-accumulated fillers to an appropriate height before the flattening roller arrives, effectively eliminating the warping and bumping of the flattening roller caused by material accumulation, ensuring that the flattening roller can work steadily and smoothly, and significantly improving the flattening quality and efficiency;
[0018] 2. The utility model utilizes a driving member to drive the two rotating rods to rotate, and the rotating Z-shaped scraper can scrape the accumulated filler flat, making the material surface smoother and providing a more ideal working surface for the subsequent flattening roller. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a structural schematic diagram of a preferred embodiment of the road repair and flattening device provided by the utility model;
[0020] Figure 2 This is a second structural diagram of a preferred embodiment of the road repair and flattening device provided by the present invention;
[0021] Figure 3 for Figure 1 Schematic diagram of the installation structure of the arc bucket shown;
[0022] Figure 4 for Figure 1 The structural diagram of the scraping assembly shown;
[0023] Figure 5 for Figure 4 Schematic diagram of the installation structure of the sleeve on the rotating rod.
[0024] Numbers in the figure: 1. Mounting plate; 2. L-shaped side plate; 3. Hydraulic cylinder; 4. U-shaped frame; 5. Arc bucket; 6. Scraping assembly; 61. Setting plate; 62. Rotating rod; 62a. Annular groove; 62b. Cutting groove; 63. Z-shaped scraper; 64. Socket tube; 641. Protruding plate; 65. Spring; 66. Driving part; 661. Sprocket; 662. Chain; 663. Servo motor; 7. Guide rod. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0026] The specific implementation of the present invention is described in detail below with reference to specific embodiments.
[0027] See also Figures 1 to 5 , an embodiment of the present invention provides a road repair and flattening device, which includes a mounting plate 1, an arc-shaped bucket 5 and a scraping assembly 6. The mounting plate 1 is fixed to the front end of the mounting frame with publication number CN221029501U by bolts. Specifically, a plurality of mounting holes for connecting the mounting plate 1 are opened on the front end surface of the mounting frame, and then the mounting plate 1 is fixed to the front end surface of the mounting frame with bolts, so that the present application is fixed to the front end surface of the mounting frame and is located in front of the flattening roller in the patent with publication number CN221029501U (that is, the front end of the flattening roller in the direction of travel).
[0028] In the embodiments of the present invention, please refer to Figures 1 to 5 L-shaped side panels 2 are fixedly installed on both sides of the mounting plate 1, and a liftable U-shaped frame 4 is set between the two L-shaped side panels 2. Specifically, a hydraulic cylinder 3 is fixedly installed on each L-shaped side panel 2, and the output end of the hydraulic cylinder 3 is vertically upward and fixedly connected to the side frame plate of the U-shaped frame 4, and an arc-shaped bucket 5 is fixedly installed on the front plate surface of the U-shaped frame 4.
[0029] It should be noted that the height between the lower surface of the arc bucket 5 and the ground is adjusted according to the height of the filling material accumulated in the crack. Specifically, the hydraulic cylinder 3 is turned on to lift the U-shaped frame 4, so that the arc bucket 5 can adapt to road conditions with different accumulation levels and filling layer requirements of different thicknesses. After the lower surface of the arc bucket 5 is adjusted to a suitable height, the vehicle body is used to drive the arc bucket 5 forward. Therefore, the liftable arc bucket 5 can be used to flatten the excessively accumulated filling material to a suitable height before the flattening roller arrives, effectively eliminating the warping and bumping of the flattening roller due to material accumulation, ensuring that the flattening roller can work steadily and smoothly, and significantly improving the flattening quality and efficiency.
[0030] It is worth noting that the hydraulic cylinder 3 is controlled by the hydraulic system on the vehicle body in CN221029501U.
[0031] Furthermore, a guide rod 7 is fixedly mounted on each L-shaped side plate 2, and the guide rod 7 passes through the through hole opened in the side frame plate of the U-shaped frame 4 and is slidably connected to the through hole, thereby improving the stability of the U-shaped frame 4 when it is lifted or lowered.
[0032] In the embodiments of the present invention, please refer to Figure 1 and Figure 4 , a scraping assembly 6 is mounted in the U-shaped frame 4, and the scraping assembly 6 includes a mounting plate 61, the mounting plate 61 is fixed to the U-shaped frame 4 by screws, and two symmetrically distributed and rotatably connected rotating rods 62 are installed on the mounting plate 61, and a driving member 66 for driving the rotating rod 62 to rotate is installed on the mounting plate 61, and a plurality of Z-shaped scrapers 63 are installed on the rotating rod 62. Specifically, an annular groove 62a is provided on the rod wall near the bottom of the rotating rod 62, and a sliding sleeve 64 and a spring 65 are provided on the rotating rod 62 with the annular groove 62a. One end of the spring 65 is fixedly connected to the inner top wall of the annular groove 62a, and the other end of the spring 65 is fixedly connected to the upper tube wall of the sleeve 64, and the plurality of Z-shaped scrapers 63 are fixedly mounted on the sleeve 64 and distributed in an annular manner around the sleeve 64;
[0033] Among them, in the multiple annularly distributed and axially arranged grooves 62b opened in the annular groove 62a, the inner tube wall of the sleeve tube 64 is fixedly embedded with multiple annularly distributed protrusions 641, and the protrusions 641 are inserted into the corresponding grooves 62b and slidably connected with the grooves 62b. Therefore, since the protrusions 641 in the sleeve tube 64 are inserted into the grooves 62b, the rotating rod 62 can drive the sleeve tube 64 to rotate synchronously when it rotates, and under the action of the elastic force of the spring 65, the sleeve tube 64 can be driven to slide up and down along the annular groove 62a.
[0034] It should be noted that: after the hydraulic cylinder 3 is turned on to adjust the lifting and lowering of the U-shaped frame 4, the scraping assembly 6 will also be adjusted synchronously. After the driving member 66 is used to drive the two rotating rods 62 to rotate, the rotating Z-shaped scraper 63 can scrape the accumulated filler flat, making the material surface smoother and providing a more ideal working surface for the subsequent flattening roller.
[0035] In this embodiment: the Z-shaped scraper 63 is connected to the rotating rod 62 through the sleeve 64 and the spring 65. When some of the fillers that are clumped together are scooped up by the arc bucket 5 and are in an upright state or when the scraper encounters a hard block or a large resistance, it can push the sleeve 64 to slide up and compress the spring 65, so that the Z-shaped scraper 63 is lifted up to avoid it, which greatly reduces the risk of the Z-shaped scraper 63 being damaged by the impact of hard objects and improves the durability and reliability of the Z-shaped scraper 63.
[0036] It is worth noting that in order to reduce the possibility of fatigue or corrosion of the spring 65, this application uses a high fatigue strength and corrosion-resistant spring material (such as stainless steel spring wire), and the Z-shaped scraper 63 may adhere to wet asphalt and other fillers during operation. Therefore, after each road repair and flattening, it can be washed with a high-pressure water gun.
[0037] Furthermore, the driving member 66 includes a sprocket 661, two sprockets 661 are provided, and the two sprockets 661 are respectively fixedly mounted on the rod heads of the two rotating rods 62, and the two sprockets 661 are engaged and driven by chains 662. A servo motor 663 is fixedly mounted on the mounting plate 61 through a frame, and the output end of the servo motor 663 is fixedly connected to the connecting end of any one of the sprockets 661. Turning on the servo motor 663 can drive the corresponding sprocket 661 to rotate. Since a chain 662 is installed between the sprockets 661 on the two rotating rods 62, the two rotating rods 62 rotate synchronously.
[0038] The working principle of the road repair and flattening device provided by the utility model is as follows:
[0039] The height of the lower bucket surface of the arc bucket 5 and the ground is adjusted according to the height of the filling material in the crack. Specifically, the hydraulic cylinder 3 is turned on to lift the U-shaped frame 4, so that the arc bucket 5 can adapt to the road conditions of different accumulation levels and the requirements of filling layers of different thicknesses. When the lower bucket surface of the arc bucket 5 is adjusted to a suitable height, the vehicle body is used to drive the arc bucket 5 forward. Therefore, the liftable arc bucket 5 can flatten and disperse the over-accumulated filling material to a suitable height before the flattening roller arrives, effectively eliminating the warping and bumping of the flattening roller caused by material accumulation, ensuring that the flattening roller can work steadily and smoothly, significantly improving the flattening quality and efficiency, and turning on the hydraulic cylinder 3 to lift the U-shaped frame 4. After the lifting and lowering adjustment, the scraping assembly 6 will also be adjusted synchronously. After the driving member 66 is used to drive the two rotating rods 62 to rotate, the rotating Z-shaped scraper 63 can scrape the accumulated filler to make the material surface smoother, providing a more ideal working surface for the subsequent flattening roller. Since the Z-shaped scraper 63 is connected to the rotating rod 62 through the sleeve 64 and the spring 65, when some of the fillers that are clumped into blocks are scooped up by the arc bucket 5 and are in an upright state or when the scraper encounters a hard block or a large resistance, it can push the sleeve 64 to slide up and compress the spring 65, so that the Z-shaped scraper 63 is lifted up to avoid it, which greatly reduces the risk of damage to the Z-shaped scraper 63 due to impact from hard objects and improves the durability and reliability of the Z-shaped scraper 63.
[0040] The circuits and controls of the hydraulic cylinder 3 and the servo motor 663 involved in the present invention are all existing mature technologies and will not be elaborated on here.
[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A road repair and flattening device, characterized in that: It comprises a mounting plate (1), L-shaped side plates (2) are fixedly mounted on both sides of the mounting plate (1), and a liftable U-shaped frame (4) is arranged between the two L-shaped side plates (2); A curved bucket (5) is fixedly mounted on the front plate surface of the U-shaped frame (4); A scraping assembly (6) is mounted inside the U-shaped frame (4), and the scraping assembly (6) includes a mounting plate (61), the mounting plate (61) is fixed to the U-shaped frame (4) by screws, and two symmetrically distributed and rotatably connected rotating rods (62) are mounted on the mounting plate (61), a plurality of Z-shaped scrapers (63) are mounted on the rotating rods (62), and a driving member (66) for driving the rotating rods (62) to rotate is mounted on the mounting plate (61).
2. The road repair and flattening device according to claim 1, characterized in that: An annular groove (62a) is provided on the rod wall of the rotating rod (62) near the bottom, and a sleeve tube (64) and a spring (65) are sleeved on the rotating rod (62) provided with the annular groove (62a); The plurality of Z-shaped scrapers (63) are fixedly mounted on the sleeve tube (64) and distributed in an annular manner around the sleeve tube (64).
3. The road repair and flattening device according to claim 2, characterized in that: In the multiple annularly distributed and axially arranged cut grooves (62b) opened in the annular groove (62a), the inner tube wall of the sleeve tube (64) is fixedly embedded with multiple annularly distributed convex plates (641), and the convex plates (641) are inserted into the corresponding cut grooves (62b) and slidably connected to the cut grooves (62b).
4. The road repair and flattening device according to claim 2, characterized in that: One end of the spring (65) is fixedly connected to the inner top wall of the annular groove (62a), and the other end of the spring (65) is fixedly connected to the upper tube wall of the sleeve tube (64).
5. The road repair and flattening device according to claim 1, characterized in that: The driving member (66) includes a sprocket (661), two sprockets (661) are provided, and the two sprockets (661) are fixedly mounted on the rod heads of two rotating rods (62), respectively. The two sprockets (661) are meshed and driven by chains (662). A servo motor (663) is fixedly mounted on the mounting plate (61) via a frame, and an output end of the servo motor (663) is fixedly connected to a connection end of any one of the sprockets (661).
6. The road repair and flattening device according to claim 1, characterized in that: A hydraulic cylinder (3) is fixedly mounted on each of the L-shaped side panels (2), and the output end of the hydraulic cylinder (3) faces vertically upward and is fixedly connected to the side frame plate of the U-shaped frame (4).
7. The road repair and flattening device according to claim 6, characterized in that: A guide rod (7) is also fixedly mounted on each of the L-shaped side panels (2), and the guide rod (7) passes through a through hole provided in the side frame panel of the U-shaped frame (4) and is slidably connected to the through hole.
Citation Information
Patent Citations
A flattening device for road repair
CN221029501U