Road paving device for municipal engineering

By designing adjustable main and secondary baffle structures for the discharge port in the municipal engineering road paving device, combined with the inclined surface of the leveling frame, the problem of material waste caused by the constant width of the discharge port is solved, and construction efficiency and material utilization are improved.

CN224047868UActive Publication Date: 2026-03-27SHENZHEN PENGRUNDA MUNICIPAL ENG
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing municipal engineering road paving equipment has a constant discharge port width, which leads to serious material waste when the area to be paved is smaller than the discharge port width during the construction and repair of damaged road surfaces.

Method used

By setting main and auxiliary baffles in the discharge box and using the threaded connection of the transmission rod and the bidirectional threaded rod, the width of the discharge port can be adjusted. Combined with the inclined design of the leveling frame, material waste is reduced and laying efficiency is improved.

Benefits of technology

It enables the adjustment of the outlet width according to the paving area, reducing material waste, and improves the filling effect and pre-compaction of the paving material through the sloping design of the leveling frame, thereby improving construction efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224047868U_ABST
    Figure CN224047868U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of road paving, in particular to a road paving device for municipal engineering, which is characterized in that a storage barrel for storing filler is fixedly mounted on a base, a discharge box is fixedly mounted at the side end of the storage barrel, and main baffles are symmetrically and rotatably mounted in the discharge box; an auxiliary baffle is installed on the main baffle in a sliding mode, a transmission rod is rotatably installed on the auxiliary baffle, a two-way threaded rod is rotatably installed on the discharging box, and a rocking handle is fixedly installed at the side end of the two-way threaded rod; when the two transmission rods slide inwards, the two auxiliary baffles can be pulled to get close to each other, the auxiliary baffles slide in the main baffle and drive the main baffle to rotate at the same time, so that an outlet of the discharging box becomes smaller, and when the two transmission rods slide outwards, the two auxiliary baffles can be pulled to get away from each other, so that the outlet of the discharging box becomes larger. Therefore, the width of the discharging port can be adjusted according to the laying area, and the effect of reducing waste of laying materials is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to road laying technical field, especially municipal engineering road laying device. BACKGROUND

[0002] In the municipal engineering road laying work, it is very important to realize efficient and accurate laying operation. In practical application, the municipal engineering road laying device usually relies on the following key technologies:

[0003] 1. Material paving: with the help of a scraper paver, a spiral material distributor and the like, asphalt mixture, concrete and the like are uniformly paved on the road surface base, like a scraper paver, the height and angle of the scraper are adjusted to pave the material according to the set thickness, and preparation is made for compaction;

[0004] 2. Road surface compaction: a road roller, such as a steel wheel, a tire roller and the like, is used, the rolling speed and the number of passes are controlled according to different materials and stages, and the road surface density and bearing capacity are improved;

[0005] 3. Edge treatment: an edge cutter and a small compaction device are used, the edge cutter trims excess material, and the small compaction device compacts the edge to ensure that the edge is neat and stable.

[0006] The existing Chinese patent: a municipal engineering road laying device, publication number: CN215104434U, includes a storage mechanism, and a lower pressing mechanism arranged on the storage mechanism and used for uniformly discharging the raw materials in the storage mechanism; the storage mechanism includes a storage bin, a guide bin connected to the bottom of the storage bin, and a discharge head connected to the guide bin and used for adjusting the discharge amount of the raw materials; the lower pressing mechanism includes a lower pressing plate which is in contact with the inner wall of the storage bin and movably connected inside the storage bin, and a driving assembly used for driving the lower pressing plate to move up and down inside the storage bin. This not only saves manual labor, but also greatly improves the construction efficiency of the overall road laying.

[0007] However, in the implementation process of the above technical solution, at least the following technical problems are found: the discharge port width of the above laying device is constant, and when the damaged road surface is repaired, if the laying area is smaller than the discharge port width, too much material will be discharged, which will cause waste of materials. UTILITY MODEL CONTENT

[0008] In view of the deficiencies of the prior art, the utility model provides a municipal engineering road laying device, which solves the technical problem that the discharge port width of the above laying device is constant, and when the damaged road surface is repaired, if the laying area is smaller than the discharge port width, too much material will be discharged, which will cause waste of materials.

[0009] To achieve the above purpose, the utility model is implemented by the following technical solutions:

[0010] The utility model provides a road laying device for municipal engineering, including the base, fixedly installed with the storage bucket for storing filler on the base, the side end of storage bucket is fixedly installed with the discharge box, the inside symmetry of discharge box is rotatably installed with main baffle, the vice baffle is slidably installed on the main baffle, the transmission rod is rotatably installed on the vice baffle, the bidirectional screw rod is rotatably installed on the discharge box, and the side end of bidirectional screw rod is fixedly installed with the handle, and the bottom end of base is fixedly installed with universal wheel, two transmission rods are respectively with the both ends screw connection of bidirectional screw rod.

[0011] Preferably, the base is slidably mounted with a screed frame.

[0012] Preferably, the screed frame is fixedly mounted with a one-way threaded rod.

[0013] Preferably, the base is rotatably mounted with a internally threaded pipe.

[0014] Preferably, the internally threaded pipe is fixedly mounted with a knob.

[0015] Preferably, the internally threaded pipe and the one-way threaded rod are threadedly connected.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] I. When using, pour the laying material into the storage bucket, and lay during the laying process through the discharge box, during which, the laying area can be rotated handle, and the handle will drive the bidirectional screw rod to rotate, since two transmission rods are respectively with the both ends screw connection of bidirectional screw rod, therefore, the bidirectional screw rod rotation will promote two transmission rods to slide inwards or outwards simultaneously, when two transmission rods slide inwards, two vice baffles will be pulled to approach each other, and the vice baffle slides in the main baffle, simultaneously drives the main baffle to rotate, so that the outlet of discharge box becomes smaller, when two transmission rods slide outwards, two vice baffles will be pulled to move away from each other, and the vice baffle slides in the main baffle, simultaneously drives the main baffle to rotate, so that the outlet of discharge box becomes larger, so as to adjust the width of discharge port according to the laying area, which achieves the effect that the waste of laying material is reduced.

[0018] II. When the paving material is poured out, the base is pushed forward, so that the screed frame can screed the paving area. Since the screed frame has two inclined surfaces, it has a guiding effect on the paving material. Not only can it receive less resistance during the advancing process, but also can make the material better fill the low-lying areas, reduce the accumulation or vacancy of the material. The force exerted by the screed frame on the paving material during the screeding process has a certain oblique component, which can pre-compaction of the material to a certain extent. The knob can be twisted to rotate the inner threaded tube. Since the inner threaded tube is threadedly connected with the one-way threaded rod, the one-way threaded rod can drive the screed frame to slide up and down, so as to adjust the screeding height. The working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above description is only a summary of the technical scheme of the present application. In order to more clearly understand the technical means of the present application, and can be implemented in accordance with the content of the specification, the following will be described in detail with the preferred embodiments of the present application and with the help of the drawings.

[0020] Figure 1 is the base structure of the present application;

[0021] Figure 2 is the storage barrel structure of the present application;

[0022] Figure 3 is the screed frame structure of the present application;

[0023] Figure 4 is the discharge box structure of the present application;

[0024] Figure 5 is the main baffle cross-sectional structure of the present application.

[0025] Legend: 1, base; 2, storage barrel; 3, discharge box; 4, main baffle; 5, auxiliary baffle; 6, transmission rod; 7, two-way threaded rod; 8, crank; 9, screed frame; 11, one-way threaded rod; 12, inner threaded tube; 13, knob; 14, universal wheel. DETAILED DESCRIPTION

[0026] This application provides a road paving device for municipal engineering, effectively solving the technical problem of the aforementioned paving device having a constant outlet width. When repairing damaged road surfaces, if the area to be paved is smaller than the outlet width, excessive material will be discharged, leading to material waste. In use, the paving material is poured into a storage bin, and during paving, it is laid through the discharge box. During this process, a crank can be rotated according to the paving area. The crank will drive the bidirectional threaded rod to rotate. Since the two transmission rods are threaded to both ends of the bidirectional threaded rod, the rotation of the bidirectional threaded rod will cause the two transmission rods to slide inwards or outwards simultaneously. When the two transmission rods slide inwards, they will pull the two auxiliary baffles closer together. The auxiliary baffles slide inside the main baffle, simultaneously causing the main baffle to rotate, thus reducing the outlet of the discharge box. When the two transmission rods slide outwards, they will pull the two auxiliary baffles closer together. The auxiliary baffle slides inside the main baffle, causing the main baffle to rotate and enlarging the outlet of the discharge box. This allows for adjustment of the discharge width according to the paving area, reducing material waste. After the paving material is poured out, pushing the base forward allows the leveling frame to level the paving area. The leveling frame has two inclined surfaces, guiding the paving material and reducing resistance during its movement. This also allows the material to better fill low-lying areas, reducing material accumulation or gaps. The force applied to the paving material during leveling has a certain oblique component, which pre-compacts the material to some extent. Turning the knob rotates the internal threaded tube. Since the internal threaded tube is threaded to the one-way threaded rod, the one-way threaded rod can drive the leveling frame to slide up and down, adjusting the leveling height and improving work efficiency.

[0027] Example

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the technical solution in this application embodiment effectively solves the technical problem of the above-mentioned paving device having a constant outlet width. When repairing damaged road surfaces, if the area to be paved is smaller than the outlet width, excessive material will be discharged, leading to material waste. The overall approach is as follows:

[0029] To address the problems existing in the prior art, this utility model provides a road paving device for municipal engineering, including a base 1, a storage tank 2 for storing filler material is fixedly installed on the base 1, a discharge box 3 is fixedly installed on the side end of the storage tank 2, a main baffle 4 is symmetrically rotated inside the discharge box 3, and a secondary baffle 5 is slidably installed on the main baffle 4.

[0030] The transmission rod 6 is rotatably installed on the auxiliary baffle 5, the bidirectional threaded rod 7 is rotatably installed on the discharge box 3, the side end of the bidirectional threaded rod 7 is fixedly installed with the rocking handle 8, and the bottom end of the base 1 is fixedly installed with the universal wheel 14.

[0031] The scraping frame 9 is slidably installed on the base 1, the one-way threaded rod 11 is fixedly installed on the scraping frame 9, the internally threaded pipe 12 is rotatably installed on the base 1, the knob 13 is fixedly installed on the internally threaded pipe 12, and the internally threaded pipe 12 and the one-way threaded rod 11 are in threaded connection.

[0032] The base 1 is the main structure of the whole municipal engineering road paving device and provides an installation basis for other components, carries the storage barrel 2 for storing fillers, is fixedly installed with the universal wheel 14 at the bottom end, and is connected with the slidable scraping frame 9 and the rotatable internally threaded pipe 12, and drives other components to complete paving and scraping work when the pushing device advances;

[0033] The storage barrel 2 is used for storing fillers required for road paving and provides a material source for paving work, and the bottom end has a slope to facilitate material outflow;

[0034] The discharge box 3 is connected to the side end of the storage barrel 2 and is a channel for paving material outflow, and the main baffle 4 and the auxiliary baffle 5 installed inside the discharge box 3 work cooperatively to control the discharging amount of paving material by changing the size of the outlet of the discharge box 3;

[0035] The main baffle 4 is symmetrically rotatably installed inside the discharge box 3, and the auxiliary baffle 5 slides on the main baffle 4. When the auxiliary baffle 5 slides, the main baffle 4 is rotated, so that the size of the outlet of the discharge box 3 is adjusted;

[0036] The auxiliary baffle 5 is slidably installed on the main baffle 4 and is rotatably connected to the transmission rod 6 at one end. Under the driving of the transmission rod 6, the auxiliary baffle 5 slides on the main baffle 4 and simultaneously rotates the main baffle 4, so as to change the width of the outlet of the discharge box 3 and control the discharging amount;

[0037] The transmission rod 6 is rotatably installed on the auxiliary baffle 5 and is in threaded connection with the two ends of the bidirectional threaded rod 7. Through the rotation of the bidirectional threaded rod 7, the transmission rod 6 slides inward or outward along the threaded direction, thereby driving the auxiliary baffle 5 to act and adjusting the size of the outlet of the discharge box 3;

[0038] The bidirectional threaded rod 7 is rotatably installed on the discharge box 3 and is fixedly installed with the rocking handle 8 at the side end. When the rocking handle 8 is rotated, the bidirectional threaded rod 7 is rotated, and the transmission rod 6 is slid by virtue of the threaded connection relationship with the transmission rod 6, so as to finally change the width of the discharging outlet of the discharge box 3;

[0039] Handle 8: fixed on the side end of the bidirectional threaded rod 7, the operator rotates the handle 8 to drive the bidirectional threaded rod 7 to rotate, thereby indirectly adjusting the width of the discharge port of the discharge box 3 to adapt to different paving area requirements.

[0040] Screed frame 9: slidingly installed on the base 1, it has two inclined surfaces, which can guide the material to fill the low-lying area and reduce the accumulation or vacancy during the screeding process, and at the same time, the material is pre-compacted during the screeding process;

[0041] One-way threaded rod 11: fixedly installed on the screed frame 9, it is screwed with the rotating inner threaded tube 12, when the inner threaded tube 12 rotates, the one-way threaded rod 11 can drive the screed frame 9 to slide up and down, thereby adjusting the screeding height;

[0042] Inner threaded tube 12: rotatingly installed on the base 1, the fixed knob 13, when the knob 13 is twisted to rotate the inner threaded tube 12, through the threaded connection with the one-way threaded rod 11, the screed frame 9 is driven to move up and down, thereby adjusting the screeding height;

[0043] Knob 13: fixed on the inner threaded tube 12, the operator twists the knob 13 to rotate the inner threaded tube 12, thereby adjusting the screeding height of the screed frame 9;

[0044] Universal wheel 14: fixedly installed at the bottom end of the base 1, so that the base 1 can be moved.

[0045] Working principle:

[0046] Firstly, when in use, the paving material is poured into the storage bucket 2, and during the paving process, it will be paved through the discharge box 3, during which the handle 8 can be rotated according to the paving area, the handle 8 will drive the bidirectional threaded rod 7 to rotate, because the two transmission rods 6 are respectively screwed with the two ends of the bidirectional threaded rod 7, therefore the rotation of the bidirectional threaded rod 7 will promote the simultaneous sliding of the two transmission rods 6 inward or outward, when the two transmission rods 6 slide inward, they will pull the two auxiliary baffles 5 closer to each other, the auxiliary baffles 5 slide inside the main baffle 4, at the same time, drive the main baffle 4 to rotate, so that the outlet of the discharge box 3 becomes smaller, when the two transmission rods 6 slide outward, they will pull the two auxiliary baffles 5 away from each other, the auxiliary baffles 5 slide inside the main baffle 4, at the same time, drive the main baffle 4 to rotate, so that the outlet of the discharge box 3 becomes larger, so as to adjust the width of the discharge port according to the paving area, thereby reducing the waste of paving material.

[0047] Second, when the paving material is poured out, the base 1 is pushed forward, so that the screed 9 can screed the paving area, since the screed 9 has two inclined surfaces, so it can guide the paving material, not only can it have smaller resistance in the advancing process, but also can make the material better fill the low-lying area, reduce the accumulation or vacancy of the material, the screed 9 has a certain oblique component in the screed process, which can pre-compaction of the material to a certain extent, the knob 13 can be twisted to rotate the inner threaded tube 12, since the inner threaded tube 12 is threadedly connected with the one-way threaded rod 11, so that the one-way threaded rod 11 drives the screed 9 to slide up and down, so as to adjust the screed height, so as to improve the working efficiency.

[0048] Finally, it should be noted that: obviously, the above examples are only examples for clearly illustrating the utility model, and are not limited to the implementation. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and impossible to enumerate all the implementation. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A device for laying roads for civil engineering works, comprising a base (1), characterised in that, The base (1) is fixedly installed with a storage barrel (2) for storing filler, the side end of the storage barrel (2) is fixedly installed with a discharge box (3), the inside of the discharge box (3) is symmetrically rotatably installed with a main baffle (4), the main baffle (4) is slidably installed with a secondary baffle (5), the secondary baffle (5) is rotatably installed with a transmission rod (6), the discharge box (3) is rotatably installed with a bidirectional threaded rod (7), the side end of the bidirectional threaded rod (7) is fixedly installed with a rocking handle (8), the bottom end of the base (1) is fixedly installed with a universal wheel (14). Wherein, two transmission rods (6) are respectively threadedly connected with two ends of the bidirectional threaded rod (7).

2. The road paving device for municipal works as claimed in claim 1, wherein, The base (1) is slidably installed with a scraping frame (9).

3. The road paving device for municipal works as claimed in claim 2, wherein, The scraping frame (9) is fixedly installed with a unidirectional threaded rod (11).

4. The road paving device for municipal works of claim 1, wherein, The base (1) is rotatably installed with an internally threaded pipe (12).

5. The road laying device for municipal works as claimed in claim 4, wherein, The internally threaded pipe (12) is fixedly installed with a knob (13).

6. The road paving device for municipal works as claimed in claim 4, wherein, The internally threaded pipe (12) and the unidirectional threaded rod (11) are threadedly connected.

Citation Information

Patent Citations

  • Municipal engineering road laying device

    CN215104434U