Asphalt pavement irregular pit slot paving and repairing device and construction method thereof

Abstract

The invention provides an asphalt pavement irregular pit slot paving and repairing device and a construction method thereof, and relates to the technical field of pavement construction, the asphalt pavement irregular pit slot paving and repairing device comprises a paving assembly and a heating assembly, and the heating assembly is used for preheating asphalt at a position to be repaired and comprises a liquefied gas tank, a hose, a spray gun rod and a gas nozzle; the liquefied gas tank is communicated with the spray gun rod through the hose, and the gas nozzle is installed at the end, away from the hose, of the spray gun rod. The paving assembly comprises a pressing plate used for compacting and flattening the preheated asphalt pavement and a pressing roller connected with the pressing plate and used for being held by an operator. The method has the beneficial effects that the operation is simple, convenient and fast, the method is easy to master by operators, the construction efficiency can be obviously improved, and the problems that the existing large equipment cannot cover the periphery of a well lid, the vicinity of curbstone, ramp corners, new and old joints and other small-area irregular positions, and the asphalt paving flatness and the compaction degree are difficult to guarantee are solved in a targeted manner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pavement construction, in particular to an irregular pit and groove paving and repairing device for asphalt pavement and a construction method thereof. BACKGROUND

[0002] The construction of local limited positions of asphalt pavement, such as the periphery of a manhole cover, the vicinity of a curbstone, the corner of a ramp, the joint of new and old pavement, and the repairing of pavement diseases, is a common demand in the field of road maintenance and construction. At present, the operation for such scenes mainly relies on manual use of simple traditional tools such as spades, rakes and handheld vibrating rammers to pave and level hot-mixed asphalt mixture, which has problems such as high labor intensity, low operation efficiency, uneven and uneven quality depending on the experience of workers, fast loss of material temperature, insufficient compaction, and safety hazards in long-time high-temperature operation.

[0003] At the same time, the existing large equipment is mainly concentrated on the functions of large-area asphalt paving and compaction, and is single in function and large in size, and it is difficult to guarantee the paving flatness and compaction degree of asphalt for small-area and irregular positions such as manhole covers, curbstones, ramp corners and new-old joints.

[0004] In summary, the prior art lacks a lightweight paving and repairing device for small-area irregular pits and grooves, resulting in the demand for efficient and high-quality repairing in the scenarios of rapid construction and rapid maintenance not being effectively met. Therefore, there is an urgent need for an irregular pit and groove paving and repairing device for asphalt pavement and a construction method thereof to solve the above problems. SUMMARY

[0005] The present application relates to the technical field of pavement construction, in particular to an irregular pit and groove paving and repairing device for asphalt pavement and a construction method thereof.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The present application provides an irregular pit and groove paving and repairing device for asphalt pavement, which comprises a paving assembly and a heating assembly, wherein:

[0008] The heating assembly is used for preheating the asphalt at the position to be repaired, and comprises a liquefied gas tank, a hose, a spray gun rod and a gas nozzle, the liquefied gas tank is in communication with the spray gun rod through the hose, and the gas nozzle is installed at the end of the spray gun rod away from the hose;

[0009] The paving assembly includes a compaction plate for compacting and leveling the preheated asphalt pavement, and a compaction roller connected to the compaction plate for the operator to hold.

[0010] Preferably, the bottom surface of the pressure plate has an arc-shaped structure, and its curvature is adapted to the shape of the area to be repaired.

[0011] Preferably, the paving assembly further includes a protective handle sleeve, which is fitted onto the outer surface of the pressure roller, and the length of the protective handle sleeve is not less than 2 / 3 of the length of the pressure roller.

[0012] Preferably, the heating assembly further includes an anti-slip protective sleeve, which is fitted over the outside of the spray gun rod.

[0013] Preferably, the liquefied gas tank is equipped with a shoulder strap.

[0014] Preferably, the hose is a rubber hose.

[0015] Preferably, the bottom of the pressure roller is provided with a reinforcing structure, both ends of which are connected to the pressure roller and form a triangular structure with the pressure roller. The base of the triangular structure is fixedly connected to the top surface of the pressure plate.

[0016] Preferably, the pressure plate is made of steel plate.

[0017] A construction method for repairing irregular potholes in asphalt pavement, using the aforementioned asphalt pavement irregular pothole repair device, includes the following steps:

[0018] S1: The operator carries the heating unit on his back and holds the spray gun arm. He uses the air nozzle to preheat the interface of the asphalt pavement to be treated, so as to soften the asphalt material.

[0019] S2: Another worker holds a paving component and uses a bending plate to continuously compact and level the preheated and softened asphalt surface.

[0020] S3: Continue operation until the hot melt compaction repair of the local asphalt bonding layer is completed, so as to achieve rapid paving and repair of asphalt pavement.

[0021] The asphalt pavement irregular pothole paving and repair device provided by this invention includes a paving component and a heating component. The heating component, through a liquefied gas tank, hose, spray gun bar, and air nozzle connected in sequence, can precisely preheat the asphalt at the section to be repaired, avoiding the problem of rapid material temperature loss in traditional manual repair. The paving component, through the cooperation of a pressure plate and a pressure roller, replaces simple tools such as shovels and rakes, integrating compaction and holding functions, reducing the frequency of tool switching, and improving work continuity. Through the effective cooperation of the paving component and the heating component, and the independent setting of the heating component and the paving component, two operators can work together to adapt to the operating space requirements of different localized restricted scenarios, avoiding the limitation of single equipment operation, and further improving repair efficiency. This device specifically solves the problem that existing large equipment cannot cover small areas and irregular locations such as around manhole covers, near curbs, slope corners, and new and old joints, making it difficult to guarantee the flatness and compaction of asphalt paving. It realizes specialized repair of small-area irregular potholes and fills the gap in the industry for lightweight paving and leveling devices.

[0022] The construction method for repairing irregular potholes in asphalt pavement provided by this invention replaces the arbitrary operation problem of traditional manual repair through steps such as preheating, compaction, and finishing. It reduces the problem of unstable repair quality caused by differences in worker experience, realizes the standardization and normalization of local asphalt pavement repair, ensures the consistency of repair quality under different work scenarios, and the construction operation is simple and easy for workers to master, which can significantly improve construction efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a heating component in an embodiment of the asphalt pavement irregular pothole paving and repair device of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of an embodiment of the paving component in the asphalt pavement irregular pothole paving and repair device of the present invention.

[0026] In the diagram: 1. Paving assembly; 11. Press plate; 12. Press roller; 13. Protective handle cover; 2. Heating assembly; 21. Liquefied gas tank; 22. Hoses; 23. Anti-slip protective cover; 24. Spray gun bar; 25. Gas nozzle. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0028] like Figure 1 and Figure 2 As shown, the present invention provides a paving and repair device for irregular potholes in asphalt pavement, including a paving component 1 and a heating component 2. The heating component 2 is used to preheat the asphalt at the repair location, and the paving component 1 is used to compact and level the asphalt after it has been preheated and softened by the heating component 2.

[0029] Specifically, such as Figure 1 As shown, the heating assembly 2 in this embodiment includes a liquefied gas tank 21, a hose 22, a spray gun rod 24, and an air nozzle 25. The liquefied gas tank 21 is connected to the spray gun rod 24 via the hose 22, and the air nozzle 25 is installed at the end of the spray gun rod 24 away from the hose 22. By sequentially connecting the liquefied gas tank 21, hose 22, spray gun rod 24, and air nozzle 25, the asphalt to be repaired section can be precisely preheated, avoiding the problem of rapid material temperature loss in traditional manual repair.

[0030] like Figure 2 As shown, the paving assembly 1 includes a compaction plate 11 for compacting and leveling the preheated asphalt pavement, and a compaction roller 12 connected to the compaction plate 11 for the operator to hold. Through the effective cooperation of the compaction plate 11 and the compaction roller 12, simple tools such as shovels and rakes are replaced, realizing the integration of compaction and holding functions, reducing the frequency of tool switching, and improving the continuity of operation.

[0031] This asphalt pavement irregular pothole paving and repair device includes a paving component 1 and a heating component 2. The heating component 2, through a liquefied gas tank 21, a hose 22, a spray gun bar 24, and an air nozzle 25 connected in sequence, can accurately preheat the asphalt in the section to be repaired, avoiding the problem of rapid material temperature loss in traditional manual repair. The paving component 1, through the effective cooperation of the pressure plate 11 and the pressure roller 12, replaces simple tools such as shovels and rakes, realizing the integration of compaction and holding functions, reducing the frequency of tool switching, and improving the continuity of operation. Through the effective cooperation of the paving component 1 and the heating component 2, and the fact that the heating component 2 and the paving component 1 are set up independently, two operators can work together to adapt to the operating space requirements of different local restricted scenarios, avoiding the limitation of single equipment operation, and further improving repair efficiency. This device specifically addresses the problem that existing large-scale equipment cannot cover small, irregular areas such as around manhole covers, near curbs, ramp corners, and new and old joints, making it difficult to guarantee the smoothness and compaction of asphalt paving. It enables specialized repair of small, irregular potholes and fills the gap in the industry for lightweight paving and leveling devices.

[0032] As an optional implementation, the bottom surface of the pressure plate 11 has an arc-shaped structure, and its curvature is adapted to the shape of the area to be repaired. During use, the pressure plate 11 can closely conform to the contour of irregular potholes, avoiding problems such as missed pressure at edges and corners and bulges in the middle that occur during compaction using traditional flat tools, ensuring a uniform and flat repair surface. Furthermore, the arc-shaped structure allows for even pressure distribution on the asphalt surface layer during compaction, preventing insufficient compaction caused by localized pressure concentration, while also reducing the side spillage of softened asphalt, improving the density of the repaired area, and extending the service life of the pavement.

[0033] This asphalt pavement irregular pothole repair device, through a curved bottom plate 11, employs preheating and contour-following ironing principles to flexibly adapt to local defects of different shapes, such as slope corners and new-old joints. It eliminates the need for individual tool adjustments for different scenarios, enhancing the device's versatility. During use, the asphalt material is first preheated, effectively softening the interface material. Workers then use the paving component 1 to continuously compact and level the softened asphalt, ensuring the construction quality of the asphalt paving in localized areas. This significantly improves the adhesion between new and old materials and the quality of hot joints, avoiding interlayer debonding and cold joint problems, and accelerating the construction progress.

[0034] As an optional implementation, the paving assembly 1 also includes a protective handle sleeve 13, which is fitted onto the outer surface of the pressure roller 12, and the length of the protective handle sleeve 13 is not less than 2 / 3 of the length of the pressure roller 12.

[0035] In this embodiment, a protective handle sleeve 13 is provided and fitted onto the outer surface of the pressure roller 12. On one hand, this effectively isolates the heat generated by the pressure roller 12 in contact with high-temperature asphalt, preventing burns to the operator's hands from direct contact with the high-temperature component and addressing the safety hazards of traditional high-temperature operations. On the other hand, the protective handle sleeve 13 increases the friction between the operator's hand and the pressure roller 12, effectively preventing slippage even if the operator's hands are sweaty or contaminated with asphalt, thus preventing the device from slipping out of their hand during operation. By ensuring that the length of the protective handle sleeve 13 is no less than 2 / 3 of the length of the pressure roller 12, a more sufficient gripping contact area is ensured, making it more convenient to use and improving construction efficiency.

[0036] As an optional implementation, the heating assembly 2 also includes an anti-slip protective sleeve 23, which is fitted onto the outside of the spray gun rod 24.

[0037] In this embodiment, the anti-slip protective sleeve 23 can isolate the spray gun rod 24 from the high temperature generated by gas heating, preventing workers from being burned when holding it; at the same time, it can prevent the spray gun rod 24 from slipping out of the hand during the heating process, avoiding damage to non-repair areas of the road surface or safety accidents caused by flame deviation.

[0038] Preferably, the anti-slip protective sleeve 23 is in rigid contact with the spray gun rod 24 to avoid discomfort from holding it for a long time, ensuring that the operator can continuously and stably complete the preheating operation and further improve work efficiency.

[0039] As an optional implementation, the liquefied gas tank 21 is equipped with a shoulder strap. This allows operators to carry the liquefied gas tank 21 on their backs, eliminating the need to hold it or carry it separately, thus completely freeing their hands. This allows operators to focus on operating the spray gun lever 24, solving the problems of inconvenience and fatigue associated with carrying traditional liquefied gas tanks by hand. Furthermore, the shoulder-mounted design allows operators to freely adjust their position and movement routes, adapting to complex operating spaces with limited space, especially suitable for preheating operations in narrow areas such as curbs and ramp corners, avoiding the movement restrictions caused by carrying equipment by hand.

[0040] As an optional implementation, the hose 22 in this embodiment is a rubber hose. Rubber has excellent flexibility, allowing it to be bent and stretched freely without limiting the operating angle and range of movement of the spray gun handle, making it a preferred material for hose 22. During use, operators can flexibly adjust the heating position of the air nozzle to adapt to the preheating requirements of different irregular pits, improving the convenience of preheating operations.

[0041] The rubber hose has good high temperature resistance and good sealing performance. It can withstand the high temperature effects during the combustion of liquefied gas and the preheating of asphalt, and can effectively prevent liquefied gas leakage. It avoids the problems of ordinary hoses aging, hardening or breaking due to high temperature, and can effectively ensure the stable operation of heating component 2 and reduce the risk of device failure.

[0042] As an optional implementation, a reinforcing structure is provided at the bottom of the pressure roller 12. Both ends of the reinforcing structure are connected to the pressure roller 12 and form a triangular structure with the pressure roller 12. The bottom edge of the triangular structure is fixedly connected to the top surface of the pressure plate 11.

[0043] By connecting both ends of the reinforced structure to the pressure roller 12 and fixing the bottom edge to the top surface of the pressure plate 11, a stable triangular support structure is formed, preventing deformation or loosening of the connection between the pressure roller 12 and the pressure plate 11 due to stress during compaction. The reinforced structure allows the downward pressure applied by the operator to be evenly transmitted to the pressure plate 11, avoiding uneven compaction caused by pressure concentration in a localized area, further improving the compaction degree of the asphalt surface layer, and reducing the problem of reduced repair quality due to structural deformation.

[0044] In this embodiment, the pressure plate 11 is made of steel plate. Steel plate has high strength and hardness, which can withstand the pressure impact during the reciprocating compaction process. It is not easily deformed or bent, which solves the problems of poor compaction effect and easy damage caused by insufficient strength of traditional wooden or plastic tools, and extends the service life of the device.

[0045] This embodiment also provides a construction method for paving and repairing irregular potholes in asphalt pavement, using the above-mentioned asphalt pavement irregular pothole paving and repair device, including the following steps:

[0046] S1: The operator carries the heating component 2 on his back and holds the spray gun 24. He uses the air nozzle 25 to preheat the interface of the asphalt pavement to be treated, so as to soften the asphalt material.

[0047] S2: Another worker holds the paving component 1 and uses the bending pressure plate 11 to continuously compact and level the preheated and softened asphalt surface layer.

[0048] S3: Continue operation until the hot melt compaction repair of the local asphalt bonding layer is completed, so as to achieve rapid paving and repair of asphalt pavement.

[0049] Specifically, before operation, the device needs to be assembled and inspected, including welding the pressure roller 12 to the inside of the curved steel plate, putting on the protective handle sleeve 13 and fixing it; connecting the two ends of the rubber hose 22 to the shoulder strap liquefied gas tank 21 and the gas spray gun rod 24 respectively, and putting on the anti-slip protective sleeve 23.

[0050] During the work, a preheating treatment is first carried out. One worker carries the liquefied gas tank 21 on his back with a shoulder strap, holds the spray gun rod 24 with a non-slip protective cover 23, ignites the gas nozzle 25, adjusts the flame temperature to 300-400℃, and moves the gas nozzle 25 evenly along the surface to be repaired at a speed of 5-10cm / s. The preheating time is 3-5 minutes to ensure that the asphalt material softens.

[0051] Another worker holds a paving component 1 with a protective handle sleeve 13 and uses the curved bottom surface of the bent steel plate to continuously compact and level the preheated and softened asphalt surface layer at a frequency of 10-15 times / minute. The roller 12 rotates naturally with the operating direction to help the asphalt material be evenly distributed.

[0052] After compacting for 3-5 minutes, stop the operation and check the flatness and compaction of the repair surface. If there are local unevennesses, repeat step S3 to make local repairs until the quality requirements are met, and complete the rapid paving and repair of the asphalt pavement.

[0053] This construction method for repairing irregular potholes in asphalt pavement replaces the arbitrary operation of traditional manual repairs through steps such as preheating, compaction, and finishing. It reduces the instability of repair quality caused by differences in worker experience, achieves standardization and normalization of local asphalt pavement repairs, ensures consistent repair quality in different work scenarios, and is simple to operate and easy for workers to master, which can significantly improve construction efficiency.

[0054] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An asphalt pavement irregular pit and groove paving and repairing device, characterized by, The asphalt pavement irregular pit and groove paving and repairing device comprises a paving assembly (1) and a heating assembly (2), wherein: The heating assembly (2) is used for preheating the asphalt at the position to be repaired, and comprises a liquefied gas tank (21), a hose (22), a spray gun rod (24) and a gas nozzle (25), the liquefied gas tank (21) is communicated with the spray gun rod (24) through the hose (22), and the gas nozzle (25) is installed at one end of the spray gun rod (24) away from the hose (22). The paving assembly (1) comprises a pressing plate (11) for compacting and leveling the preheated asphalt pavement and a pressing rod (12) connected with the pressing plate (11) for being held by an operator.

2. The asphalt pavement irregular pit and groove paving and repairing device according to claim 1, characterized in that: The bottom surface of the pressing plate (11) is in an arc structure, and the bending arc is matched with the shape of the area to be repaired.

3. The asphalt pavement irregular pit and groove paving repair device according to claim 1 or 2, characterized in that: The paving assembly (1) further comprises a protective handle sleeve (13) sleeved on the outer surface of the pressing rod (12), and the length of the protective handle sleeve (13) is not less than 2 / 3 of the length of the pressing rod (12).

4. The asphalt pavement irregular pit and groove paving repairing device according to claim 1 or 2, characterized in that: The heating assembly (2) further comprises an anti-skid protective sleeve (23) sleeved on the outer side of the spray gun rod (24).

5. The asphalt pavement irregular pit and groove paving and repairing device according to claim 1, characterized in that: The liquefied gas tank (21) is provided with a carrying strap.

6. The asphalt pavement irregular pit and groove paving and repairing device according to claim 1, characterized in that: The hose (22) is made of rubber hose.

7. The asphalt pavement irregular pit and groove paving and repairing device according to claim 1, characterized in that: The bottom of the pressing rod (12) is provided with a reinforcing structure, both ends of the reinforcing structure are connected with the pressing rod (12), and a triangular structure is formed between the reinforcing structure and the pressing rod (12), and the bottom side of the triangular structure is fixedly connected with the top surface of the pressing plate (11).

8. The asphalt pavement irregular pit and groove paving and repairing device according to claim 1, characterized in that: The pressing plate (11) is made of steel plate.

9. A construction method for paving and repairing irregular pits and grooves of asphalt pavement, characterized by: The asphalt pavement irregular pit and groove paving and repairing device comprises the following steps: S1: an operator carries the heating assembly (2) on his back, holds the spray gun rod (24) in his hand, and preheats the interface position of the asphalt pavement to be processed through the gas nozzle (25) to soften the asphalt material; S2: another operator holds the paving assembly (1) in his hand, and continuously and reciprocally compacts and levels the preheated and softened asphalt surface layer through the curved pressing plate (11); S3: continuously operate until the hot melting and compaction repair of the local asphalt binding layer is completed, and the rapid paving and repairing of the asphalt pavement is realized.

Images