A road laying device for municipal engineering construction
By installing a spring between the scraper and the moving frame for cushioning, the problem of easy scraper damage is solved, construction efficiency is improved, maintenance costs are reduced, and the safety and applicability of construction are enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI WANFENG CONSTR ENG CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-19
AI Technical Summary
The scrapers of existing road paving equipment used in municipal engineering construction lack a buffer structure, making them prone to damage from impacts, affecting construction progress and increasing maintenance costs.
A spring is installed between the scraper and the moving frame to cushion the impact and prevent the scraper from making hard contact with the raised structure. An alarm is also provided to alert the operator in case of a large impact.
It effectively avoids scraper damage, improves construction efficiency, reduces maintenance costs, and increases construction safety and flexibility.
Smart Images

Figure CN224378649U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering construction equipment technology, and in particular to a road paving device for municipal engineering construction. Background Technology
[0002] Municipal engineering refers to the construction of municipal infrastructure, including urban roads, bridges, subways, underground pipelines, tunnels, waterways, rail transit, sewage treatment, and garbage disposal projects that support urban life. When paving roads in municipal engineering construction, materials such as mortar or asphalt need to be poured onto the roadbed surface first, and then the materials are spread and compacted by manpower and machinery such as road rollers. However, when asphalt and other materials are poured onto the roadbed surface, the materials generally clump together due to the high viscosity of asphalt, which undoubtedly makes the subsequent spreading and compaction work difficult.
[0003] A road paving device for municipal engineering construction, as provided in the prior art, comprises: a loading hopper at the top of one side of the base, a feeding mechanism on one side of the loading hopper, and a leveling mechanism at the bottom of the base; the feeding mechanism includes a feeding roller with a quantitative groove arrayed on its outer side, a rotating shaft on its inner side, a transmission belt on one side of the rotating shaft, an auxiliary wheel at the end of the transmission belt away from the rotating shaft, and a movable wheel on one side of the auxiliary wheel. In this invention, the feeding roller and the quantitative groove on the feeding roller ensure that the feeding roller delivers an equal amount of paving material, making the road paving more uniform. The auxiliary wheel on the movable wheel rotates the rotating shaft connected to the transmission belt under the drive of the movable wheel, causing the feeding roller to rotate synchronously with the movable wheel, improving the uniformity of the paving process. The device has a simple structure and is highly practical.
[0004] However, the device has a significant drawback: its scraper lacks a buffer structure. When leveling the road surface, if the scraper hits a raised part of the road, the scraper is easily damaged due to excessive impact force because there is no buffer structure to mitigate the impact. This not only affects the progress of road paving but also increases the maintenance cost of the equipment and reduces construction efficiency.
[0005] Therefore, it is necessary to provide a road paving device for municipal engineering construction to solve the above-mentioned technical problems. Utility Model Content
[0006] This utility model provides a road paving device for municipal engineering construction, which solves the problem that the scraper in the prior art lacks a buffer structure and is easily damaged by impact.
[0007] To solve the above-mentioned technical problems, this utility model provides a road paving device for municipal engineering construction, comprising:
[0008] silos;
[0009] Two side frames are fixedly installed on both sides of the hopper, and a movable frame is slidably connected to the inner side of each side frame.
[0010] Two sliding rods are slidably connected to the inside of the bottom ends of the movable frame. Springs are sleeved on the outer sides of the two sliding rods, and scrapers are fixedly installed at one end of the two sliding rods.
[0011] Preferably, a drive telescopic component is fixedly installed on the sides of both side frames, and the movable end of the drive telescopic component is fixedly installed on the bottom of the mobile frame.
[0012] Preferably, a push switch is fixedly installed on one side of the scraper, and an alarm is fixedly installed on the top of the hopper. The push switch and the alarm are electrically connected.
[0013] Preferably, the bottom of the hopper is provided with multiple rollers, and a traction frame is fixedly installed on the side of the hopper.
[0014] Preferably, the spring is disposed between the movable frame and the scraper.
[0015] Preferably, the other end of the slide bar is provided with a threaded groove, and a threaded rod is threadedly connected to the inner side of the threaded groove. A rotating plate is fixedly installed at one end of the threaded rod.
[0016] Preferably, the rotating plate is located on the other side of the movable frame.
[0017] Compared with related technologies, the road paving device for municipal engineering construction provided by this utility model has the following beneficial effects:
[0018] This utility model provides a road paving device for municipal engineering construction. Through the cooperation of structures such as a movable frame, scraper, sliding rod and spring, when the scraper encounters a raised structure, it will compress the spring, thereby playing a buffering role and avoiding hard contact between the scraper and the raised structure, thus avoiding damage to the scraper. In this way, not only is the progress of municipal road construction paving avoided, but subsequent maintenance costs are also reduced and construction efficiency is increased. Attached Figure Description
[0019] Figure 1 A schematic diagram of the structure of a first embodiment of a road paving device for municipal engineering construction provided by this utility model;
[0020] Figure 2 for Figure 1 The diagram shows another perspective of the structure.
[0021] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;
[0022] Figure 4 for Figure 2 The enlarged schematic diagram of section B is shown below;
[0023] Figure 5 This is a schematic diagram of the second embodiment of a road paving device for municipal engineering construction provided by this utility model.
[0024] The following are the labels in the diagram: 1. Hopper, 11. Traction frame, 12. Roller, 2. Side frame, 21. Moving frame, 22. Drive telescopic component, 3. Scraper, 4. Slide rod, 41. Spring, 5. Press switch, 6. Alarm, 7. Threaded rod, 8. Rotating plate, 9. Threaded groove. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0026] First Embodiment
[0027] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a road paving device for municipal engineering construction provided by this utility model; Figure 2 for Figure 1 The diagram shows another perspective of the structure. Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below; Figure 4 for Figure 2 The enlarged schematic diagram of section B is shown. A road paving device for municipal engineering construction includes: a hopper 1;
[0028] Two side frames 2 are fixedly installed on both sides of the hopper 1, and a movable frame 21 is slidably connected to the inner side of each of the two side frames 2.
[0029] Two sliding rods 4 are slidably connected to the inside of the bottom ends of the movable frame 21. Springs 41 are sleeved on the outer sides of the two sliding rods 4, and scrapers 3 are fixedly installed on one end of the two sliding rods 4.
[0030] Both sides of the two side frames 2 are fixedly installed with drive telescopic components 22, and the moving end of the drive telescopic component 22 is fixedly installed at the bottom of the mobile frame 21.
[0031] A push switch 5 is fixedly installed on one side of the scraper 3, and an alarm 6 is fixedly installed on the top of the hopper 1. The push switch 5 and the alarm 6 are electrically connected.
[0032] The bottom of the hopper 1 is provided with multiple rollers 12, and a traction frame 11 is fixedly installed on the side of the hopper 1.
[0033] The spring 41 is disposed between the movable frame 21 and the scraper 3.
[0034] The drive telescopic component 22 can easily adjust the height of the moving frame 21, thereby precisely controlling the height of the scraper 3 to adapt to different construction requirements and road conditions, improving the applicability of the device and the flexibility of construction.
[0035] The combination of push-button switch 5 and alarm 6 enables timely alarm when scraper 3 encounters a large impact force, allowing operators to quickly identify the problem and take measures to prevent it from escalating, thus ensuring the safety and reliability of the construction process.
[0036] The silo 1 is equipped with a feeding mechanism. When in use, the drive motor drives the spiral feeding roller to rotate, which makes it easier for the staff to feed the asphalt.
[0037] The working principle of the road paving device for municipal engineering construction provided by this utility model is as follows:
[0038] During use, the towing frame 11 is connected to the towing vehicle, and the asphalt to be laid is placed into the inner side of the hopper 1. Then, the towing vehicle pulls the towing frame 11 to move. At this time, the asphalt inside the hopper 1 is discharged from the outlet of the hopper. At this time, the scraper 3 can scrape the asphalt accumulated on the road surface. When encountering a raised part of the road surface, the scraper 3 contacts the raised part of the road surface. At this time, the scraper 3 will move, thereby driving the slide bar 4 to slide inside the moving frame 21, and then compressing the spring 41, thereby playing a buffering role. At the same time, the moving frame 21 will press the push switch 5, which will activate the alarm 6. At this time, the alarm 6 will sound an alarm, which serves as a reminder to the staff.
[0039] Compared with related technologies, the road paving device for municipal engineering construction provided by this utility model has the following beneficial effects:
[0040] The moving frame 21, scraper 3, slide bar 4, and spring 41 work together to create a buffer when the scraper 3 encounters a protruding structure. This prevents the scraper 3 from making hard contact with the protruding structure and avoids damage to the scraper 3. As a result, the construction progress of municipal roads is not affected, and subsequent maintenance costs are reduced, while construction efficiency is increased.
[0041] Second Embodiment
[0042] Please refer to the following: Figure 5 Based on the road paving device for municipal engineering construction provided in the first embodiment of this application, the second embodiment of this application proposes another road paving device for municipal engineering construction. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.
[0043] Specifically, the difference in the road paving device for municipal engineering construction provided in the second embodiment of this application is that, in the road paving device for municipal engineering construction, the other end of the slide bar 4 is provided with a threaded groove 9, the inner side of the threaded groove 9 is threadedly connected to a threaded rod 7, and a rotating plate 8 is fixedly installed at one end of the threaded rod 7.
[0044] The rotating plate 8 is located on the other side of the movable frame 21.
[0045] The working principle of the road paving device for municipal engineering construction provided by this utility model is as follows:
[0046] When scraper 3 and spring 41 need to be replaced after long-term use, the operator can rotate the rotating plate 8 so that the rotating plate 8 drives the threaded rod 7 to make a threaded connection on the inner side of the threaded groove 9, thereby disassembling the rotating plate 8 from one end of the slide rod 4. At this time, the operator can disassemble scraper 3 and scraper 4.
[0047] Compared with related technologies, the road paving device for municipal engineering construction provided by this utility model has the following beneficial effects:
[0048] The screw rod 7, rotating plate 8 and screw groove 9 work together to form a threaded connection. When in use, rotating plate 8 drives screw rod 7 to connect to the inner side of screw groove 9, which makes it easy for users to disassemble rotating plate 8 for subsequent maintenance of spring 41 and scraper 3.
[0049] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A road paving device for municipal engineering construction, characterized in that, include: silos; Two side frames are fixedly installed on both sides of the hopper, and a movable frame is slidably connected to the inner side of each side frame. Two sliding rods are slidably connected to the inside of the bottom ends of the movable frame. Springs are sleeved on the outer sides of the two sliding rods, and scrapers are fixedly installed at one end of the two sliding rods.
2. The road paving device for municipal engineering construction according to claim 1, characterized in that, Both of the side frames are fixedly mounted with drive telescopic components, and the moving end of the drive telescopic component is fixedly mounted to the bottom of the mobile frame.
3. The road paving device for municipal engineering construction according to claim 1, characterized in that, A push-button switch is fixedly installed on one side of the scraper, and an alarm is fixedly installed on the top of the hopper. The push-button switch and the alarm are electrically connected.
4. The road paving device for municipal engineering construction according to claim 1, characterized in that, The bottom of the hopper is equipped with multiple rollers, and a traction frame is fixedly installed on the side of the hopper.
5. A road paving device for municipal engineering construction according to claim 1, characterized in that, The spring is disposed between the movable frame and the scraper.
6. A road paving device for municipal engineering construction according to claim 1, characterized in that, The other end of the slide bar is provided with a threaded groove, and a threaded rod is threadedly connected to the inner side of the threaded groove. A rotating plate is fixedly installed at one end of the threaded rod.
7. A road paving device for municipal engineering construction according to claim 6, characterized in that, The rotating plate is located on the other side of the movable frame.