Portable repairing gun for light cracks of asphalt pavement

Abstract

The invention discloses a portable repairing gun for light cracks of an asphalt pavement. The repairing gun comprises a handle, a gun barrel, a feeding assembly, a storage pipe position switching assembly, a storage pipe support and a plurality of storage pipes; the storage pipe support is located on the rear half section of the gun barrel, a plurality of storage pipes are evenly arranged on the storage pipe support in a circumferential mode, position switching of the storage pipes is achieved through the storage pipe position switching assembly, and the outlet ends of the storage pipes are sequentially right opposite to an outlet of the gun barrel; and an asphalt strip in each storage pipe can be pushed into a heating area at the outlet end of the gun barrel under the action of the feeding assembly. The plurality of storage pipes are arranged, so that the containing capacity of asphalt materials is increased, the area capable of being repaired by one-time capacity is increased, and the working efficiency is improved; and the position of a storage pipe is switched through rotation of the storage pipe support, the end cover of the gun barrel can be opened, a new asphalt material can be conveniently installed, and use is more convenient.

Description

technical field [0001] The invention relates to the technical field of preventive maintenance of asphalt roads, in particular to a portable repair gun for mild cracks on asphalt roads. Background technique [0002] The design life of asphalt pavement is generally 15-20 years. However, after 8-10 years of service, the road performance and structural performance of most roads can no longer meet the driving needs, and large-scale repairs are required. The initial disease of the highway mainly with cracks has not been paid attention to. According to the "Technical Status Evaluation Standards for Highway" (JTG 5210-2018), mild cracks refer to cracks with a blockiness of the main cracks between 0.2 and 0.5m and an average crack width of less than 2mm; Massive cracks with a crack width between 1 and 2 mm; and longitudinal and transverse cracks with a main crack width less than or equal to 3 mm. If the above mild cracks are not repaired and maintained in time, they will inevitably...

AI Technical Summary

Problems solved by technology

The repair equipment mainly adopts joint glue loading trucks, construction machinery transport vehicles, etc. These equipment are large in size, inconvenient to carry, and the construction method is relatively extensive. They are mainly used for repairing severe cracks, and are not suitable for minor cracks in asphalt pavement. Repairing will cause a lot of waste of resources

[0004] The existing crack repair gun has only one material tube, the material that can be accommodated at one time is limited, the area of ​​each repair is limited, frequent feeding is required, and the work efficiency is low

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