CN110616627B - Quick patching device of bituminous paving crack - Google Patents

Quick patching device of bituminous paving crack Download PDF

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Publication number
CN110616627B
CN110616627B CN201910919782.1A CN201910919782A CN110616627B CN 110616627 B CN110616627 B CN 110616627B CN 201910919782 A CN201910919782 A CN 201910919782A CN 110616627 B CN110616627 B CN 110616627B
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repairing
heating
handle
heat
repair material
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CN201910919782.1A
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CN110616627A (en
Inventor
池漪
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Hunan Communication Polytechnic
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Hunan Communication Polytechnic
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/09Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
    • E01C23/0966Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving

Abstract

The invention discloses a rapid repairing device for an asphalt pavement crack, which comprises a repairing handle, wherein an annular gap filling seat device is arranged on the repairing handle, a controller is arranged at one end above the repairing handle, a repairing material extruding device is arranged at the center above the repairing handle, and a heat insulation heating device is arranged below the repairing handle. Drive extrusion screw through driving motor and rotate, thereby make extrusion baffle extrusion storage section of thick bamboo, make the repair material flow at the uniform velocity in heating spiral coil, the repair material still can heat the heat-conducting medium through electric heating pipe as required to heat, thereby make the repair material heat, and the uniform velocity of repair material removes, and cooperate the heat transfer of heat-conducting medium, can the effectual constancy of guaranteeing the repair material temperature, thereby accurate control repair material's temperature, and then make the repair material effect better when repairing the road surface crack, and can be applicable to multiple repair material.

Description

Quick patching device of bituminous paving crack
Technical Field
The invention relates to the field of related pavement repairing equipment, in particular to a device for quickly repairing a crack of an asphalt pavement.
Background
The asphalt concrete pavement is widely applied to road engineering due to the advantages of short maintenance time, high driving comfort, strong adaptability, convenient maintenance and the like, and is the main type of the current road pavement. However, asphalt concrete pavements often cause various diseases such as cracks, pits, ruts, flooding and the like due to various reasons, so that the roads are damaged, if the roads are not repaired in time, the damage can be rapidly developed under the comprehensive action of traffic load and water, maintenance cost is increased, the safety of drivers and passengers is seriously endangered, and great potential safety hazards exist.
In patent CN 201710999074.4-among the bituminous paving patching device for municipal works, the accessible heating plate heats the patching material of storage incasement, stir through rotating the motor simultaneously, the in-process temperature of stirring diffuses and makes the patching material be heated evenly, transmit the temperature of storage incasement to the display through temperature sensor, according to the duration of the steerable storage incasement heating of demonstration temperature, the blast pipe discharges waste gas and smog to the basin in simultaneously, reduce air pollution, basin connection spray tube accessible spray tube simultaneously, can spray the blast pipe with heating the back water in the basin through the spray tube to ground, carry out the ground cleanness, two discharging pipe connection connecting pipes simultaneously, can accelerate bituminous concrete road patching speed, the velocity of flow of first valve control patching material, rational utilization patching material.
When repairing a crack with a large width on an asphalt concrete pavement, liquid asphalt is generally used for repairing, the liquid asphalt needs to be heated when repairing the crack on the pavement, and external equipment is used for heating the asphalt, so that the repairing time is too long, and manpower is wasted.
Disclosure of Invention
The invention aims to solve the problems, and designs a device for quickly repairing asphalt pavement cracks, which has a function of quickly repairing, solves the problem of overlong repairing time in the existing pavement crack repairing, pushes a repairing material into a heating pipeline through an electric telescopic rod to heat, and enables the repairing material to be quickly heated and then to be filled in the cracks of a road, so that the pavement cracks are quickly repaired, the time for repairing the cracks is effectively saved, the working efficiency is improved, meanwhile, the device is convenient for a plurality of people to work simultaneously, and is suitable for heating type repairing materials and normal-temperature repairing materials.
The technical scheme of the invention is that the device for quickly repairing the asphalt pavement crack comprises a repairing handle, wherein an annular gap filling seat device is arranged on the repairing handle, a controller is arranged at one end above the repairing handle, a repairing material extruding device is arranged at the center above the repairing handle, and a heat insulation heating device is arranged below the repairing handle;
the repairing material extruding device comprises an opening barrel installed at the center above a repairing handle, an opening port is formed above the opening barrel, a butt joint port is formed at one end inside the opening barrel, a repairing material inlet pipe is installed at one end of the opening barrel, a quick joint is installed on the repairing material inlet pipe, a threaded through groove is formed at the other end inside the opening barrel, an extrusion screw is installed inside the threaded through groove, an extrusion bearing is installed at one end of the extrusion screw, an extrusion baffle is arranged at one end of the extrusion screw, the extrusion baffle is connected with the extrusion bearing through a fixed seat, limiting blocks are installed on two sides of the other end of the extrusion screw, a driving motor is installed at one side of the center above the repairing handle, a rotating sleeve shaft is movably sleeved on the extrusion screw, one end of the rotating sleeve shaft is fixedly connected with the rotating end of the driving motor, and two ends of the rotating sleeve shaft are connected with the repairing handle through the rotating bearing, two sides of the interior of the rotating sleeve shaft are provided with limiting chutes, and the limiting chutes are connected with limiting blocks in a sliding manner;
the heat insulation heating device comprises a heating sleeve arranged below the inner portion of a repairing handle, a vacuum jacket is arranged on the outer side surface of the heating sleeve, a vacuum state is formed between the vacuum jacket and the heating sleeve, a heat insulation material is arranged between the vacuum jacket and the repairing handle, a heating spiral coil is arranged inside the heating sleeve, one end of the heating spiral coil is fixedly connected with the upper end of the heating sleeve, the other end of the heating spiral coil is fixedly connected with the lower end of the heating sleeve, one end of the heating spiral coil is fixedly connected with the repairing material inlet pipe, an electric heating pipe is arranged at the center of the inner portion of the heating sleeve, a heat conduction medium is arranged inside the heating sleeve, the heating sleeve is filled with the heat conduction medium, and a temperature sensor is arranged at one end of the inner portion of the heating sleeve.
Annular joint filling seat device includes repair the handle lower extreme and install ring toper repair the seat, ring toper repair the seat and repair the handle lower extreme and become certain angle installation, ring toper repair the inside taper that is of seat, ring toper repair the seat inside center department and install and fill out the seam pipe, fill out seam pipe and heating coil pipe's other end fixed connection, ring toper repair seat lower surface one side center department both ends and open and have two flexible recesses, flexible recess internally mounted has the flexible post in location, flexible post in location and flexible recess sliding connection, the lower extreme of the flexible post in location is the sphere, install compression spring between flexible post in location and the flexible recess.
The repairing material inlet pipe is provided with an air injection inlet pipe, and the air injection inlet pipe is provided with an air injection valve.
One side of the repairing handle is provided with a movable handrail, and the movable handrail is provided with a heat insulation rubber sleeve.
The quick connector on the repair material inlet pipe is in threaded connection with the discharge hole of the storage barrel.
The heating range of the electric heating pipe is 0-200 ℃.
The initial boiling point of the heat-conducting medium is higher than the highest heating temperature of the electric heating pipe.
The electric connection cable is installed at one end of the repairing handle and is electrically connected with an external diesel generator.
The asphalt pavement crack rapid repairing device manufactured by the technical scheme of the invention has the following beneficial effects:
the repairing device drives the extrusion screw rod to rotate through the driving motor, so that the extrusion baffle extrudes the repairing material cylinder, the repairing material is extruded from the material storage cylinder at a constant speed, the repairing material is enabled to flow in the heating spiral coil pipe at a constant speed, the heat conducting medium is heated through the electric heating pipe, heat is transferred to the repairing material through the heat conducting medium, the repairing material is enabled to be heated, the temperature constancy of the repairing material can be effectively guaranteed through the constant speed movement of the repairing material and the heat transfer of the heat conducting medium, the temperature of the repairing material is accurately controlled, and the effect of the repairing material is better when pavement cracks are repaired;
according to the repairing device, the counterweight is carried out through the self gravity of the heating sleeve, the heating medium and the annular conical repairing seat, so that the device can stably move when a pavement crack is repaired, the repairing material is effectively prevented from being scattered outside the pavement crack due to too light weight of the device, meanwhile, the contact tightness of the annular conical repairing seat and the ground can be increased, and the waste of the repairing material is reduced;
according to the repairing device, the heat transfer is carried out by using the heat-conducting medium with the initial boiling point higher than the highest heating temperature of the electric heating pipe, so that the service life of the heat-conducting medium is effectively ensured, and the problem that the heat-conducting medium is subjected to distillation reaction due to overhigh heating temperature is avoided;
the repairing device has a heating range of 0-200 ℃, and is suitable for various asphalt concrete pavement crack repairing materials: the method is suitable for heating type repairing materials and normal temperature repairing materials.
Drawings
FIG. 1 is a schematic structural diagram of a device for rapidly repairing a crack of an asphalt pavement according to the present invention;
FIG. 2 is a schematic view of a repair material extrusion apparatus according to the present invention;
FIG. 3 is a schematic view of the insulated heating unit of the present invention;
FIG. 4 is a schematic view of the annular caulking seat assembly of the present invention;
in the figure, 1, the handle is repaired; 2. a controller; 3. opening the cylinder; 4. a butt joint port; 5. feeding a repairing material into the pipe; 6. a quick connector; 7. a threaded through slot; 8. extruding the screw; 9. extruding the bearing; 10. extruding the baffle; 11. a fixed seat; 12. a limiting block; 13. a drive motor; 14. rotating the sleeve shaft; 15. a rotating bearing; 16. a limiting chute; 17. heating the sleeve; 18. a vacuum jacket; 19. a thermal insulation material; 20. heating the spiral coil; 21. an electric heating tube; 22. a heat-conducting medium; 23. a temperature sensor; 24. a ring-cone shaped repair seat; 25. filling a seam tube; 26. a telescopic groove; 27. positioning the telescopic column; 28. a compression spring; 29. injecting air into the pipe; 30. an air injection valve; 31. moving the armrest; 32. a heat insulation rubber sleeve; 33. and connecting a power cable.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings, as shown in FIGS. 1-4, in this embodiment:
in the device, the power is supplied by electrically connecting the power cable 33 with the diesel generator, the power cable 33 is electrically connected with the controller 2, the driving motor 13 and the electric heating tube 21 for supplying power, the controller 2 is a PLC controller with model TL2N-20MR-4V, the control signal output end of the controller 2 is electrically connected with the driving motor 13 and the electric heating tube 21 respectively through a relay, and the signal receiving end of the controller 2 is electrically connected with the signal sending end of the temperature sensor 23 through the relay, so that the operation of the whole device is controlled.
The invention is characterized in that the overall structure design of a repairing material extruding device and a heat insulation heating device is combined with an attached drawing 1, an attached drawing 2 and an attached drawing 3, the repairing material extruding device comprises a repairing handle 1, an open barrel 3 is arranged at the center above the open barrel 3, an open opening is arranged above the open barrel 3, a butt joint port 4 is arranged at one end inside the open barrel 3, a repairing material inlet pipe 5 is arranged at one end of the open barrel 3, a quick joint 6 is arranged on the repairing material inlet pipe 5, a threaded through groove 7 is arranged at the other end inside the open barrel 3, an extrusion screw 8 is arranged inside the threaded through groove 7, an extrusion bearing 9 is arranged at one end of the extrusion screw 8, an extrusion baffle 10 is arranged at one end of the extrusion screw 8, the extrusion baffle 10 is connected with the extrusion bearing 9 through a fixed seat 11, a limit block 12 is arranged at two sides of the other end of the extrusion screw 8, and a driving motor 13 is arranged at one side above the repairing handle 1, a rotary sleeve shaft 14 is movably sleeved on the extrusion screw 8, one end of the rotary sleeve shaft 14 is fixedly connected with the rotary end of the driving motor 13, two ends of the rotary sleeve shaft 14 are connected with the repairing handle 1 through a rotary bearing 15, two sides in the rotary sleeve shaft 14 are provided with limiting sliding grooves 16, and the limiting sliding grooves 16 are in sliding connection with limiting blocks 12; the heat insulation heating device comprises a heating sleeve 17 arranged below the inner part of a repairing handle 1, a vacuum jacket 18 is arranged on the surface of the outer side of the heating sleeve 17, a vacuum state is formed between the vacuum jacket 18 and the heating sleeve 17, a heat insulation material 19 is arranged between the vacuum jacket 18 and the repairing handle 1, a heating spiral coil 20 is arranged inside the heating sleeve 17, one end of the heating spiral coil 20 is fixedly connected with the upper end of the heating sleeve 17, the other end of the heating spiral coil 20 is fixedly connected with the lower end of the heating sleeve 17, one end of the heating spiral coil 20 is fixedly connected with a repairing material inlet pipe 5, an electric heating pipe 21 is arranged at the center of the inner part of the heating sleeve 17, a heat conduction medium 22 is arranged inside the heating sleeve 17, the heating sleeve 17 is filled with the heat conduction medium 22, and a temperature sensor 23 is arranged at one end inside the heating sleeve 17; through the cooperation of rotatory sleeve axle 14 and extrusion screw 8, make extrusion baffle 10 promote the storage cylinder and extrude the repair material, thereby make the extrusion that the repair material can be at the uniform velocity, heat-conducting medium 22 heats through electric heating pipe 21, and transmit the heat through heat-conducting medium 22, thereby make the repair material can heat when the uniform velocity removes in heating spiral coil pipe 20, simultaneously through the uniform velocity removal of repair material, can guarantee repair material heating temperature's accuracy nature, thereby repair material repairing's effect when effectual assurance road surface is repaired, through the heat-conducting medium 22 that uses the initial fraction point to be less than electric heating pipe 21's the highest heating temperature, can effectually avoid the loss of heat-conducting medium 22 in the heating process, make heat-conducting medium 22's life can effectual extension, thereby reducing unit's cost.
In this device, combine figure 4, annular joint filling seat device carries out the position of location gap through the flexible post 27 of location on the seat 24 is repaired to the annular cone and staff's range estimation to make the seat 24 is repaired to the annular cone can remove on the road surface crack fast, thereby the quick crack of carrying on is repaired, fills up the repair material after will heating in road surface crack department through filling up the seam pipe 25, thereby accomplishes road surface repair fast.
In the device, the air injection inlet pipe 29 is connected with an external air pump, and the air pump is used for washing the device, so that the repairing material inlet pipe 5, the heating spiral coil pipe 20 and the seam filling pipe 25 can be kept dredged, and the blocking of the repairing material is effectively prevented.
The working principle of the device is as follows: when the pavement crack needs to be repaired, a worker firstly moves the device to the pavement crack, and at the moment, the worker manually controls the diesel generator to start working and connects the power connection cable 33 with the diesel generator;
at the moment, a worker places the storage cylinder into the open cylinder 3, inserts the discharge end of the storage cylinder into the butt joint port 4, and screws the quick joint 6 on the repair material inlet pipe 5 and the discharge end of the repair material cylinder in a threaded connection manner, so as to fix the repair material cylinder, controls the driving motor 13 to work, drives the rotating sleeve shaft 14 to rotate at a constant speed by the driving motor 13, drives the extrusion screw 8 to rotate at a constant speed by the limiting connection of the rotating sleeve shaft 14 and the limiting block 12 through the limiting chute 16, drives the extrusion screw 8 to rotate at a constant speed, drives the extrusion baffle 10 to move at a constant speed by the threaded connection of the extrusion screw 8 and the threaded through groove 7, and controls the driving motor 13 to stop working after the extrusion baffle 10 is in contact with the bottom plate in the storage cylinder;
at this time, the electric heating tube 21 is controlled to start heating, the electric heating tube 21 starts to heat after being electrified, so that the heat-conducting medium 22 is heated, the heat-conducting medium 22 is heated to a set temperature, the temperature of the heat-conducting medium 22 is detected through the temperature sensor 23, the electric heating tube 21 is controlled to stop heating when the temperature of the heat-conducting medium 22 reaches the set value, and the electric heating tube 21 is controlled to heat again when the temperature of the heat-conducting medium 22 is lower than the set value, so that the heat-conducting medium 22 is kept at a constant temperature;
meanwhile, a worker holds the repairing handle 1 and the movable handrail 31 by hands, moves the annular conical repairing seat 24 above the pavement crack, and positions the pavement crack through the positioning telescopic column 27;
when the heat-conducting medium 22 reaches the set temperature, the residual repairing material in the heating spiral coil 20 is melted by the heat transfer between the heat-conducting medium 22 and the heating spiral coil 20 and is changed into liquid again, and meanwhile, the driving motor 13 is controlled to start working, the driving motor 13 rotates to drive the rotating sleeve shaft 14 to rotate at a constant speed, so that the extrusion baffle plate 10 starts to push the bottom plate of the storage cylinder to move at a constant speed through the matching of the rotating sleeve shaft 14 and the extrusion screw 8, and the repairing material is extruded out of the repairing material cylinder;
the repairing material enters the repairing material inlet pipe 5 through the discharge end of the storage barrel and enters the heating spiral coil pipe 20 through the repairing material inlet pipe 5, the repairing material flows at a constant speed in the heating spiral coil pipe 20, so that the heating spiral coil pipe 20 transfers the heat of the heat-conducting medium 22 to the repairing material, the repairing material is heated, and after the repairing material flows out of the heating spiral coil pipe 20 in the heating sleeve 17, the repairing material is heated to a proper temperature;
at the moment, the repairing material heated to the proper temperature enters the gap filling pipe 25 through the heating spiral coil pipe 20 and flows into the annular conical repairing seat 24 through the gap filling pipe 25 so as to flow into the pavement crack to repair the crack, and the annular conical repairing seat 24 makes the annular conical repairing seat 24 fully contact with the pavement through the self gravity and the gravity of the repairing handle 1, the heating sleeve 17, the heat-conducting medium 22 and the heating spiral coil pipe 20, so that the waste of the repairing material is effectively reduced, the repairing material can fully contact with the pavement crack, and the pavement crack is repaired;
at the moment, the worker holds the repairing handle 1 and moves the handrail 31 to move the annular conical repairing seat 24, so that the annular conical repairing seat 24 moves along the pavement crack to repair the whole pavement crack, and in the moving process of the annular conical repairing seat 24, the annular conical repairing seat 24 is effectively prevented from moving out of the pavement crack by positioning the pavement crack through the positioning telescopic columns 27, so that the accuracy of pavement crack repairing is ensured;
the pavement cracks are subjected to gap filling and repairing through the heated repairing material, so that the pavement cracks can be rapidly repaired, meanwhile, the heated repairing material has a good pasting effect, the pavement repairing effect is effectively ensured, and meanwhile, the repairing material is scraped through the annular conical repairing seat 24, so that the smoothness of the pavement is ensured;
after the repair is finished, the worker connects the air pump with the air injection inlet pipe 29, opens the air injection valve 30, inputs high-pressure air into the air injection inlet pipe 29 through the air pump, thereby cleaning the residual repair material in the device, preventing the residual repair material from blocking the device after being cured, and ensuring the smooth use of the device next time.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims (5)

1. The quick repairing device for the asphalt pavement cracks comprises a repairing handle (1), wherein an annular gap filling seat device is installed on the repairing handle (1), and a controller (2) is installed at one end above the repairing handle (1), and is characterized in that a repairing material extruding device is installed at the center above the repairing handle (1), and a heat insulation heating device is arranged below the repairing handle (1);
the repair material extrusion device comprises an open barrel (3) installed at the center of the upper part of a repair handle (1), wherein the upper part of the open barrel (3) is open, one end of the inner part of the open barrel (3) is provided with a butt joint (4), one end of the open barrel (3) is provided with a repair material inlet pipe (5), the repair material inlet pipe (5) is provided with a quick joint (6), the other end of the inner part of the open barrel (3) is provided with a threaded through groove (7), the threaded through groove (7) is internally provided with an extrusion screw (8), one end of the extrusion screw (8) is provided with an extrusion bearing (9), one end of the extrusion screw (8) is provided with an extrusion baffle (10), the extrusion baffle (10) is connected with the extrusion bearing (9) through a fixing seat (11), and two sides of the other end of the extrusion screw (8) are provided with a limiting block (12), a driving motor (13) is installed on one side of the center above the repairing handle (1), a rotating sleeve shaft (14) is movably sleeved on the extrusion screw (8), one end of the rotating sleeve shaft (14) is fixedly connected with the rotating end of the driving motor (13), two ends of the rotating sleeve shaft (14) are connected with the repairing handle (1) through a rotating bearing (15), limiting sliding grooves (16) are formed in two sides inside the rotating sleeve shaft (14), and the limiting sliding grooves (16) are connected with limiting blocks (12) in a sliding mode;
the heat insulation heating device comprises a heating sleeve (17) arranged below the inner part of the repairing handle (1), a vacuum jacket (18) is arranged on the surface of the outer side of the heating sleeve (17), a vacuum state is formed between the vacuum jacket (18) and the heating sleeve (17), a heat insulation material (19) is arranged between the vacuum jacket (18) and the repairing handle (1), a heating spiral coil (20) is arranged in the heating sleeve (17), one end of the heating spiral coil (20) is fixedly connected with the upper end of the heating sleeve (17), the other end of the heating spiral coil (20) is fixedly connected with the lower end of the heating sleeve (17), one end of the heating spiral coil (20) is fixedly connected with a repairing material inlet pipe (5), an electric heating pipe (21) is arranged at the center of the inner part of the heating sleeve (17), and a heat conduction medium (22) is arranged in the heating sleeve (17), the heating sleeve (17) is filled with the heat-conducting medium (22), and a temperature sensor (23) is mounted at one end inside the heating sleeve (17);
the annular gap filling seat device comprises a conical repairing seat (24) arranged at the lower end of the repairing handle (1), the annular conical repairing seat (24) and the lower end of the repairing handle (1) are arranged in a certain angle, the interior of the annular conical repairing seat (24) is conical, a seam filling pipe (25) is arranged at the center of the interior of the annular conical repairing seat (24), the joint filling pipe (25) is fixedly connected with the other end of the repair material heating spiral coil pipe (20), two telescopic grooves (26) are arranged at the two ends of the center of one side of the lower surface of the annular conical repairing seat (24), a positioning telescopic column (27) is arranged in the telescopic groove (26), the positioning telescopic column (27) is connected with the telescopic groove (26) in a sliding way, the lower end of the positioning telescopic column (27) is a spherical surface, and a compression spring (28) is arranged between the positioning telescopic column (27) and the telescopic groove (26);
the repair material advances to install on pipe (5) and spouts gas inlet pipe (29), it spouts gas valve (30) to spout to advance to install on pipe (29), repair material advances the quick-operation joint on pipe (5) and the discharge gate threaded connection of storage section of thick bamboo.
2. The device for rapidly repairing cracks on asphalt pavement according to claim 1, wherein a movable handrail (31) is installed on one side of the repairing handle (1), and a heat-insulating rubber sleeve (32) is installed on the movable handrail (31).
3. The asphalt pavement crack rapid repairing device according to claim 1, characterized in that the heating range of the electric heating pipe (21) is 0-200 ℃.
4. The device for rapidly repairing cracks on asphalt pavement according to claim 1, wherein the initial boiling point of the heat-conducting medium (22) is higher than the maximum heating temperature of the electric heating pipe (21).
5. The device for rapidly repairing the asphalt pavement crack according to claim 1, wherein an electric cable (33) is installed at one end of the repairing handle (1), and the electric cable (33) is electrically connected with an external diesel generator.
CN201910919782.1A 2019-09-26 2019-09-26 Quick patching device of bituminous paving crack Active CN110616627B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910919782.1A CN110616627B (en) 2019-09-26 2019-09-26 Quick patching device of bituminous paving crack

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Application Number Priority Date Filing Date Title
CN201910919782.1A CN110616627B (en) 2019-09-26 2019-09-26 Quick patching device of bituminous paving crack

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CN110616627B true CN110616627B (en) 2021-08-06

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