Bituminous pavement anti-bonding paving tool

Abstract

The utility model relates to the technical field of asphalt paving, in particular to an asphalt pavement anti-bonding paving tool which comprises a bulldozing rake rod, one end of the bulldozing rake rod is connected with a scraper, and the asphalt pavement anti-bonding paving tool is characterized in that a liquid conveying system is arranged on the bulldozing rake rod and comprises an opening and closing valve, a liquid storage tank and a liquid conveying pipeline, the liquid storage tank is arranged between the opening and closing valve and the liquid conveying pipeline; the liquid storage tank is filled with an asphalt separant and is fixed on the bulldozing rod through an annular fastening buckle, and the annular fastening buckle is welded on the surface of the bulldozing rod; the liquid conveying pipeline is fixed to the surface of the bulldozing rod through an annular ring and extends to the scraper in the length direction of the bulldozing rod, the liquid conveying pipeline is of a Y-shaped structure, the forked position of the liquid conveying pipeline extends in the width direction of the scraper, and a plurality of liquid conveying holes are formed in the portion, on the surface of the scraper, of the liquid conveying pipeline. The problem of scraper adhesion is effectively solved, and the operation efficiency of workers and the utilization rate of the bulldozing rake are improved.

Description

Technical Field

[0001] This utility model relates to the field of asphalt paving technology, specifically to an asphalt pavement anti-adhesion paving tool. Background Technology

[0002] In the field of road construction and maintenance, asphalt pavement is widely used in various transportation infrastructures such as urban roads and highways due to its advantages such as good smoothness, skid resistance, durability, and driving comfort. Although mechanical paving technology has made significant progress in the mechanical paving of asphalt pavement, enabling the rapid and uniform paving of large areas, many problems still exist in actual construction scenarios that cannot be completely solved by machinery alone.

[0003] For example, at road corners, bends, and edges, the limited operating space of mechanical paving equipment makes it difficult to precisely control the amount of asphalt mixture distributed, leading to uneven distribution and potential omissions. To ensure the quality of these special areas, construction workers typically need to manually level the surface using a trowel. Furthermore, in asphalt paving operations on sidewalks, the relatively narrow space prevents mechanical paving equipment from entering or operating normally. In such cases, manual paving and leveling with a trowel are essential to ensure the smoothness and usability of the sidewalk surface.

[0004] Currently, the most common push rakes on the market mainly consist of a scraper and a handle, with a relatively simple structure. However, in practical applications of asphalt pavement paving, this traditional push rake has revealed a series of problems. Asphalt mixtures have high adhesive properties, and during the paving process, the asphalt mixture easily sticks to the scraper surface. As construction continues, the asphalt mixture adhering to the scraper accumulates, increasing the friction between the scraper and the road surface. This makes it difficult for the push rake to slide smoothly on the road surface, thus making it difficult to smooth the asphalt pavement and seriously affecting the smoothness and quality of the road surface.

[0005] More significantly, this adhesion problem greatly reduces worker efficiency. To address the issue of asphalt mixture sticking to the scraper and restore its anti-stick properties, a container filled with asphalt release agent is typically prepared at the paving site. After using the scraper for a period of time, workers need to repeatedly soak it in the release agent to remove the asphalt mixture adhering to the scraper surface and form a release film to prevent subsequent adhesion of the asphalt mixture. This process is not only cumbersome but also frequently interrupts work to soak the scraper, greatly wasting construction time, reducing worker efficiency, and consequently affecting the overall progress of the asphalt pavement paving project. Utility Model Content

[0006] To overcome the shortcomings of existing technologies, this application provides an anti-adhesion paving tool for asphalt pavement, which aims to effectively solve the problem of scraper adhesion, improve worker operating efficiency, and increase the utilization rate of the rake.

[0007] The technical means adopted by this utility model to solve its technical problem is: an asphalt pavement anti-adhesion paving tool, including a pusher rod, one end of which is connected to a scraper; the improvement lies in that the pusher rod is equipped with an infusion system, wherein...

[0008] The infusion system includes an on / off valve, a storage tank, and an infusion pipeline, wherein the storage tank is located between the on / off valve and the infusion pipeline.

[0009] The storage tank is filled with asphalt release agent and is fixed to the pusher rod by a ring fastener, which is welded to the surface of the pusher rod.

[0010] The infusion pipe is fixed to the surface of the pusher rod by an annular ring and extends along the length of the pusher rod to the scraper. The infusion pipe on the surface of the scraper has several infusion holes.

[0011] The opening and closing valve in the above technical solution includes a ball valve and an opening and closing operating rod. The diameter of the ball valve matches the inner diameter of the infusion pipeline. The ball valve has a through hole along the length of the pusher rod 1. The ball valve and the opening and closing operating rod are welded together. The opening and closing operating rod is made of aluminum alloy.

[0012] The infusion pipeline described in the above technical solution has a "Y" shaped structure, and the bifurcation of the infusion pipeline extends along the width direction of the scraper.

[0013] The infusion pipeline described in the above technical solution includes three independent pipelines, which are connected by a tee on the scraper. The asphalt release agent in the storage tank is transmitted to the scraper surface through the pipeline and the tee.

[0014] The infusion pipeline described in the above technical solution is a rubber tubing.

[0015] The above technical solution describes a liquid storage tank with an upper connection port and a lower connection port at both ends. The upper and lower connection ports are made of steel pipes. The lower connection port is connected to a liquid delivery pipeline. A liquid filling port is also reserved at the top of the liquid storage tank. The liquid filling port uses a screw-fastening switch.

[0016] In the above technical solution, the infusion holes are evenly distributed along the width direction of the scraper, the distance between adjacent infusion holes is 1–5 cm, and the diameter of the infusion holes ranges from 1 mm to 5 mm.

[0017] In the above technical solution, the end of the pusher rod away from the scraper is provided with an anti-slip handle. The surface of the anti-slip handle is provided with a wavy groove and is covered with a rubber anti-slip sleeve. The surface of the rubber anti-slip sleeve is provided with raised anti-slip particles.

[0018] The scraper described in the above technical solution has an arc-shaped structure, and the arc of the scraper is adapted to the arc shape of the asphalt pavement after paving.

[0019] The liquid storage tank described in the above technical solution is made of transparent material, and the surface of the liquid storage tank is provided with scale lines with an accuracy of 50ml, which are used to display the remaining amount of asphalt release agent in the liquid storage tank.

[0020] In the above technical solution, the scraper and the rake rod are connected by a detachable connecting assembly. The connecting assembly includes a fixing base and connecting bolts. The fixing base is welded to the end of the rake rod, and the scraper is fixed to the fixing base by the connecting bolts.

[0021] The beneficial effects of this utility model are:

[0022] Depending on whether there is asphalt mixture adhering to the scraper surface during construction, an asphalt release agent is delivered by adjusting the opening and closing valves, allowing an anti-adhesion protective layer to form on the scraper surface. This effectively solves the scraper adhesion problem, improves worker operating efficiency, and increases the utilization rate of the rake. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an asphalt pavement anti-adhesion paving tool according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the opening and closing valve shown in an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the liquid storage tank shown in an embodiment of the present invention;

[0026] Figure 4 This is a top view of an asphalt pavement anti-adhesion paving tool shown in an embodiment of the present invention. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0029] like Figure 1-4 As shown, this application provides an asphalt pavement anti-adhesion paving tool, including a pusher rod 1, one end of which is connected to a scraper 2, and an infusion system 3 is provided on the pusher rod 1.

[0030] The infusion system 3 includes an on / off valve 31, a storage tank 32, and an infusion pipeline 33, wherein the storage tank 32 is disposed between the on / off valve 31 and the infusion pipeline 33.

[0031] The storage tank 32 is filled with asphalt release agent and is fixed to the pusher rod 1 by an annular fastening buckle 34, which is welded to the surface of the pusher rod 1.

[0032] The infusion pipe 33 is fixed to the surface of the pusher rod 1 by an annular ring 35 and extends along the length of the pusher rod 1 to the scraper 2. The infusion pipe 33 has a "Y" structure. The bifurcation of the infusion pipe 33 extends along the width of the scraper 2. The infusion pipe 33 on the surface of the scraper 2 is provided with a plurality of infusion holes 36.

[0033] Through the above embodiments, this application can adjust the opening and closing valve to deliver asphalt release agent according to whether there is asphalt mixture adhering to the scraper surface during construction, so that an anti-adhesion protective layer is formed on the scraper surface, effectively solving the scraper adhesion problem, improving worker operating efficiency and the utilization rate of the rake.

[0034] In one possible implementation, such as Figure 2 As shown, the opening and closing valve 31 includes a ball valve 311 and an opening and closing operating rod 312. The diameter of the ball valve 311 matches the inner diameter of the infusion pipeline 33. The ball valve has a through hole 313 along the length of the pusher rod 1. The ball valve 311 and the opening and closing operating rod 312 are welded together. The opening and closing operating rod 312 is made of aluminum alloy.

[0035] By rotating the opening and closing operating rod 312, the through hole 313 in the ball valve 311 is made perpendicular to the pusher rod 1, which isolates the liquid storage tank 32 from the air, thereby creating a vacuum in the liquid storage tank 32. At this time, the asphalt release agent in the liquid storage tank 32 will stop flowing out.

[0036] Optionally, a sealing ring is provided at the connection between the opening / closing valve 31 and the infusion pipeline 33. The sealing ring is made of fluororubber material that is resistant to high temperature and chemical corrosion, and is used to prevent leakage of asphalt release agent.

[0037] By cooperating with the ball valve 311 and the infusion pipeline 33, precise control of the asphalt release agent flow rate can be achieved. When the opening and closing operating lever 312 is rotated to actuate the ball valve 311, the flow rate of the release agent in the infusion pipeline 33 can be precisely adjusted according to the actual paving requirements, avoiding waste due to excessive release agent or poor anti-adhesion effect due to insufficient release agent.

[0038] In one possible implementation, the infusion pipeline 33 includes three independent pipelines connected by a tee 21 on the scraper 2, and the asphalt release agent in the storage tank 32 is transmitted to the scraper surface through the pipeline and the tee.

[0039] The infusion pipeline 33 is independently connected by the three-way valve 21. When a section of the pipeline is blocked or damaged, it can be quickly replaced by simply disassembling the corresponding pipeline without having to dismantle the entire infusion system, which significantly reduces the cost of use and the difficulty of maintenance.

[0040] In one possible implementation, the infusion conduit 33 is a rubber tubing.

[0041] The rubber hose can be freely bent to the required angle, adapting to the irregular shape of the rake rod and the installation position of the scraper, avoiding the increased resistance caused by the multiple bends required for traditional metal pipes; at the same time, the rubber hose's chemical corrosion resistance can withstand the organic solvents in asphalt release agents (such as aromatic hydrocarbon content ≤30%), with a service life of more than 5 years, further reducing the cost of use.

[0042] In one possible implementation, such as Figure 3 As shown, the liquid storage tank 32 is provided with an upper connection port 321 and a lower connection port 322 at both ends. The upper connection port 321 and the lower connection port 322 are steel pipes. The lower connection port 322 is connected to the infusion pipeline 33, and the upper connection port 321 is a pressure relief port for venting. The upper connection port 321 is also connected to the opening and closing valve 31. A liquid filling port 323 is also reserved on the top of the liquid storage tank 32. The liquid filling port 323 adopts a screw fastening switch.

[0043] In this embodiment, pressure balance is achieved through the upper and lower connection ports. The lower connection port serves as the liquid outlet, while the upper connection port serves as the pressure relief and exhaust port, forming a pressure balance circuit. The opening and closing valve of the upper connection port can be manually adjusted to regulate the exhaust volume, thereby regulating the delivery volume of the asphalt release agent.

[0044] In one possible implementation, such as Figure 4 As shown, the infusion holes 36 are evenly distributed along the width direction of the scraper 2, the distance between adjacent infusion holes 36 is 1–5 cm, and the diameter of the infusion holes 36 is 1 mm–5 mm.

[0045] In this embodiment, based on the width of the scraper, the spacing between the holes is adjusted to achieve a 50% overlap in the spraying area of ​​adjacent holes, forming a continuous and uniform release agent film. The diameter of the infusion holes and the spacing are designed in a coordinated manner (e.g., a spacing of 2cm corresponds to a hole diameter of 2mm), so that the fluid forms a parabolic distribution on the scraper surface, and the spraying amount deviation between the edge area and the center area is ≤5%, effectively avoiding local adhesion problems.

[0046] In one possible implementation, the end of the pusher rod 1 away from the scraper 2 is provided with an anti-slip handle. The surface of the anti-slip handle has a wavy groove and is covered with a rubber anti-slip sleeve. The surface of the rubber anti-slip sleeve is provided with raised anti-slip particles.

[0047] In this embodiment, the wavy groove provides longitudinal anti-slip positioning for the fingers, making the grip force distribution more even. The contact point density is increased by the rubber anti-slip sleeve and anti-slip particles, which greatly reduces the probability of slipping out of the hand. While improving the safety and comfort of operation, it also significantly extends the service life of the tool.

[0048] In one possible implementation, the scraper 2 has an arc-shaped structure, and the arc of the scraper 2 is adapted to the arc shape of the asphalt pavement after paving.

[0049] In this embodiment, since the arc-shaped structure can undergo elastic deformation with the micro-undulations of the road base during the paving process, a fitting gap of less than 0.5mm can be formed between the arc of the scraper and the cross slope arc of the asphalt pavement design. This avoids the problem of local over-compaction or under-compaction caused by the rigid contact of the straight scraper. While improving the quality of road construction, it provides key equipment support for long-life asphalt pavement technology.

[0050] In one possible implementation, the storage tank 32 is made of a transparent material, and the surface of the storage tank 32 is provided with scale lines with an accuracy of 50ml, which are used to display the remaining amount of asphalt release agent in the storage tank 32.

[0051] In this embodiment, the storage tank is made of transparent material and has a high-precision scale line design. Through the combination of visualization and quantitative management, multi-dimensional functional improvements are achieved in the storage and use of asphalt release agent. This not only improves the controllability of the construction process, but also lays the hardware foundation for the digital management of asphalt pavement construction.

[0052] In one possible implementation, the scraper 2 and the rake rod 1 are connected by a detachable connecting assembly, which includes a fixing seat and connecting bolts. The fixing seat is welded to the end of the rake rod, and the scraper is fixed to the fixing seat by the connecting bolts.

[0053] In this embodiment, the design of the detachable connection assembly, through modular structure and precise connection technology, achieves a comprehensive improvement in tool maintenance efficiency, adaptability, and reliability in asphalt pavement construction. For example, when the scraper wears down to its limit thickness, only the scraper body needs to be replaced, while the pusher arm and fixing seat are retained, saving 75% of maintenance costs compared to replacing the entire tool.

[0054] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An anti-sticking paving tool for asphalt pavement, comprising a pusher rod, one end of which is connected to a scraper, characterized in that, The pusher rod is equipped with an infusion system, wherein... The infusion system includes an on / off valve, a storage tank, and an infusion pipeline, wherein the storage tank is located between the on / off valve and the infusion pipeline. The storage tank is filled with asphalt release agent and is fixed to the pusher rod by a ring fastener, which is welded to the surface of the pusher rod. The infusion pipe is fixed to the surface of the pusher rod by an annular ring and extends along the length of the pusher rod to the scraper. The infusion pipe has a "Y" structure, and the bifurcation of the infusion pipe extends along the width of the scraper. Several infusion holes are opened on the infusion pipe on the surface of the scraper.

2. The asphalt pavement anti-adhesion paving tool according to claim 1, characterized in that, The opening and closing valve includes a ball valve and an opening and closing operating rod. The diameter of the ball valve matches the inner diameter of the infusion pipeline. The ball valve has a through hole along the length of the pusher rod 1. The ball valve and the opening and closing operating rod are welded together. The opening and closing operating rod is made of aluminum alloy.

3. The asphalt pavement anti-adhesion paving tool according to claim 1, characterized in that, The infusion pipeline includes three independent sections, which are connected by a tee on the scraper. The asphalt release agent in the storage tank is transmitted to the scraper surface through the pipeline and the tee.

4. The asphalt pavement anti-adhesion paving tool according to claim 1, characterized in that, The infusion tubing is a rubber tube.

5. The asphalt pavement anti-adhesion paving tool according to claim 1, characterized in that, The storage tank is provided with an upper connection port and a lower connection port at both ends. The upper connection port and the lower connection port are steel pipes. The lower connection port is connected to the infusion pipeline. A liquid filling port is also reserved at the top of the storage tank. The liquid filling port adopts a screw fastening switch.

6. The asphalt pavement anti-adhesion paving tool according to claim 1, characterized in that, The infusion holes are evenly distributed along the width of the scraper, with the distance between adjacent infusion holes being 1–5 cm, and the diameter of the infusion holes ranging from 1 mm to 5 mm.

7. The asphalt pavement anti-adhesion paving tool according to claim 1, characterized in that, The end of the pusher rod away from the scraper is provided with an anti-slip handle. The surface of the anti-slip handle has a wavy groove and is covered with a rubber anti-slip sleeve. The surface of the rubber anti-slip sleeve is provided with raised anti-slip particles.

8. The asphalt pavement anti-adhesion paving tool according to claim 1, characterized in that, The scraper has an arc-shaped structure, and the arc of the scraper is adapted to the arc shape of the asphalt pavement after it is laid.

9. The asphalt pavement anti-adhesion paving tool according to claim 1, characterized in that, The storage tank is made of transparent material, and the surface of the storage tank is provided with scale lines with an accuracy of 50ml, which are used to display the remaining amount of asphalt release agent in the storage tank.

10. An asphalt pavement anti-adhesion paving tool according to claim 1, characterized in that, The scraper and the pusher rod are connected by a detachable connecting assembly, which includes a fixing seat and connecting bolts. The fixing seat is welded to the end of the pusher rod, and the scraper is fixed to the fixing seat by the connecting bolts.

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