CN112064480A - Combined type crack pouring machine and working principle thereof - Google Patents
Combined type crack pouring machine and working principle thereof Download PDFInfo
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- CN112064480A CN112064480A CN202010695342.5A CN202010695342A CN112064480A CN 112064480 A CN112064480 A CN 112064480A CN 202010695342 A CN202010695342 A CN 202010695342A CN 112064480 A CN112064480 A CN 112064480A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices 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
- E01C23/096—Devices 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 forming, opening-out, cleaning, drying or heating and filling
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- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a combined type crack pouring machine and a working principle thereof, wherein the combined type crack pouring machine comprises a frame and a hot melting box; the front side of the lower surface of the frame is provided with a driving front wheel, the left side of the driving front wheel is provided with a first motor, a driving shaft assembly is arranged between the first motor and the driving front wheel, the rear side of the lower surface of the frame is provided with a rear wheel, the upper end of the rear wheel is provided with a connecting plate, the connecting plate is provided with a connecting rotating shaft, the upper end of the connecting rotating shaft is provided with a fixed shaft seat, the fixed shaft seat is connected with the frame, one side of the upper surface of the connecting plate is provided with a pedal, the hot melting box is positioned in the middle of the upper surface of the frame, the center of the upper surface of the hot melting box is provided with a second motor, an output shaft of the second motor penetrates into the hot melting box, the output shaft of the second motor is connected with the rotating shaft through a coupler, and the rotating shaft is.
Description
Technical Field
The invention relates to the technical field of crack pouring machines, in particular to a combined crack pouring machine and a working principle thereof.
Background
A crack pouring machine belongs to pavement machinery and is mainly used for preventive maintenance of pavement diseases, asphalt materials are heated and diluted through an asphalt hot melting cavity on the existing crack pouring machine, then diluted asphalt solution is conveyed into a crack pouring gun to pour cracks on a cracked road, the crack pouring machine generally needs to be matched with a grooving machine, a hot spraying gun and a blower to use when working, more devices and workers can be seen frequently when repairing the road, each device needs to be operated by a special worker, a large amount of labor is wasted, the working efficiency is low, when the blower is used for cleaning the road, dust flies in a mess, the environment is polluted, the physical and mental health of the workers is influenced, and a combined crack pouring machine and a working principle thereof are provided aiming at the problem.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the existing defects, provide a combined type crack pouring machine and a working principle thereof, have novel structural design and convenient operation, combine repairing equipment together, have compact structure, reduce the occupied area of the equipment, save labor force, improve the operating efficiency, and replace a blower by adopting a dust collector so as to reduce the pollution of dust to the environment, ensure the physical and mental health of workers, and effectively solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a combined type crack pouring machine and a working principle thereof comprise a frame and a hot melting box; the front side of the lower surface of the frame is provided with a driving front wheel, the left side of the driving front wheel is provided with a first motor, a driving shaft assembly is arranged between the first motor and the driving front wheel, the rear side of the lower surface of the frame is provided with a rear wheel, the upper end of the rear wheel is provided with a connecting plate, the connecting plate is provided with a connecting rotating shaft, the upper end of the connecting rotating shaft is provided with a fixed shaft seat, the fixed shaft seat is connected with the frame, one side of the upper surface of the connecting plate is provided with a pedal, the hot melting box is positioned in the middle of the upper surface of the frame, the center of the upper surface of the hot melting box is provided with a second motor, an output shaft of the second motor penetrates into the hot melting box, the output shaft of the second motor is connected with a rotating shaft through a coupler, a main stirring paddle is arranged on the rotating shaft, an, a slide bar is arranged on the slide way, a rotary seat is arranged at the upper end of the slide bar, a limit clamping groove is arranged on the rotary seat, a can seam pipe is arranged on the limit clamping groove, one end of the tank seam pipe is provided with a seam filling gun, the other end of the tank seam pipe penetrates into the hot melting box and is connected with an asphalt pump, a saddle is arranged at the left end of the frame, a storage battery is arranged on one side of the saddle, a handrail frame is arranged on the storage battery, the upper end of the handrail frame is provided with a handrail, one side of the handrail frame is provided with a photovoltaic panel bracket, a photovoltaic panel is arranged on the photovoltaic panel bracket, the upper end of the photovoltaic panel is connected with the upper end of the handrail frame, one side of the hot melting box is provided with a sliding plate supporting frame, the sliding plate supporting frame is provided with a fixed sliding plate, the lower surface of the fixed sliding plate is provided with a sliding groove, the fixed sliding plate is connected with a sliding frame through the sliding groove, the upper surface of the sliding frame is provided with a handle, telescopic rods are arranged on two sides of the lower surface of the sliding frame, and the lower ends of the telescopic rods are connected with heating plates;
wherein: one side of the sliding plate supporting frame is provided with a dust collector, one side of the dust collector is provided with a first fixing support, the first fixing support is provided with a dust collection pipe, and one end of the dust collection pipe is connected with the dust collector.
Further, be equipped with the support column between photovoltaic board support and the hot melt case, the quantity of support column is two, and the support column is located both sides around the frame upper surface respectively, the upper end of support column is equipped with the rack, and the rack is fixed with the cementation of fissures rifle, is convenient for prevent the cementation of fissures rifle through the rack.
Further, one side of second motor is equipped with the feed inlet, is equipped with sealed lid on the feed inlet, and sealed lid seals the feed inlet for sealed effectual, the feed department of feed inlet is equipped with the filter screen, prevents that great solid particle from entering into the inside of hot melt case.
Further, the left end of frame is convex structure, the footboard is located the both sides of frame left end, changes the frame moving direction through the footboard, liberates both hands, the operation control box of being convenient for operate this device.
Further, one side of support column is equipped with the pole setting, and the pole setting is extending structure, and the upper end of pole setting is equipped with the warning light, can warn passerby through the warning light, and the place ahead of telling is being under construction, prevents unexpected emergence.
The invention provides a combined type crack pouring machine and a working principle thereof, comprising the following steps:
the method comprises the following steps: the warning lamp is started through the control box, the first motor drives the front wheel to rotate through the driving shaft assembly, the rotating direction of the rear wheel is changed through the pedal, the moving direction of the device can be further changed, the device is moved to a working position, the dust collector is started through the control box, and a worker operates the dust collection pipe to collect dust on a position needing crack pouring and repairing;
step two: the sliding frame is moved through the operating handle, the sliding frame drives the heating plate to move through the telescopic rod, the heating plate is moved to the position right above the road surface to be repaired, the telescopic rod is controlled to stretch through the control box, the telescopic rod enables the heating end face of the heating plate to be in contact with the road surface to be repaired, and the road surface is heated through the heating plate;
step three: an output shaft of the second motor drives the rotating shaft to rotate, the rotating shaft drives the main stirring paddle and the auxiliary stirring paddle to rotate, a worker operates the crack pouring gun and starts the asphalt pump, asphalt is sprayed out through the crack pouring gun through the crack pouring pipe, and the asphalt sprayed out by the crack pouring gun repairs the pavement to be repaired;
step four: accomplish to repairing the back, close the pitch pump through the control box, place the cementation of fissures rifle on the rack to reset hot plate and dust absorption pipe, this device of staff control moves to next repair the point.
Compared with the prior art, the invention has the beneficial effects that: this combination formula pouring machine and theory of operation have following benefit:
the invention is provided with the pedal, the moving direction of the frame is changed through the pedal, both hands are liberated, the control box is convenient to operate, the device is convenient to operate, the heating plate is used for heating the road surface to be repaired, so that the repaired road surface has no weak joint and can not scorch the road surface, the service life of the road surface can be prolonged, the defects of high repairing cost of a large-scale comprehensive maintenance vehicle and poor repairing quality of the traditional manual repair are effectively overcome, the photovoltaic panel is used for converting solar energy into electric energy, resources are saved, the structural design is novel, the operation is convenient, the repairing equipment is combined together, the structure is compact, the occupied area of the equipment is reduced, the labor force is saved, the operation efficiency is improved, the dust collector is used for replacing a blower, the pollution of dust to the environment is reduced, and the physical and mental.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic top view of the present invention;
FIG. 5 is an enlarged schematic view of the structure at A of the present invention;
FIG. 6 is an enlarged view of the structure of the present invention at B;
FIG. 7 is an enlarged view of the structure of the present invention at C.
In the figure: the device comprises a frame 1, a side support plate 2, a support column 3, a slideway 4, a sliding rod 5, a heating plate 6, a telescopic rod 7, a front driving wheel 8, a first fixing support 9, a dust suction pipe 10, a dust suction machine 11, a hot melting box 12, a feed inlet 13, a sealing cover 14, a 15 placing rack 15, a 16 crack pouring gun, a photovoltaic plate 17, a handrail 18, a vertical rod 19, a generator 20, a first motor 21, a driving shaft assembly 22, a warning lamp 23, a handrail frame 24, a control box 25, a photovoltaic plate support 26, an auxiliary stirring paddle 27, an asphalt pump 29, a main stirring paddle 30, a rotating shaft 31, a second motor 32, a pedal 33, a rotating seat 34, a limiting clamping groove 35, a connecting plate 36, a rear wheel 37, a connecting rotating shaft 38, a fixed shaft seat 39, a handle 40, a sliding chute 41, a fixed sliding plate 42, a sliding plate 43 supporting frame, a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-7, the present invention provides a technical solution: a combined type crack pouring machine and a working principle thereof comprise a frame 1 and a hot melting box 12; the front side of the lower surface of the frame 1 is provided with a driving front wheel 8, the left side of the driving front wheel 8 is provided with a first motor 21, a driving shaft assembly 22 is arranged between the first motor 21 and the driving front wheel 8, the rear side of the lower surface of the frame 1 is provided with a rear wheel 37, the upper end of the rear wheel 37 is provided with a connecting plate 36, the connecting plate 36 is provided with a connecting rotating shaft 38, the upper end of the connecting rotating shaft 38 is provided with a fixed shaft seat 39, the fixed shaft seat 39 is connected with the frame 1, one side of the upper surface of the connecting plate 36 is provided with a pedal 33, the hot melting box 12 is positioned in the middle of the upper surface of the frame 1, the center of the upper surface of the hot melting box 12 is provided with a second motor 31, one side of the second motor 31 is provided with a feeding hole 13, the feeding hole 13 is provided with a sealing cover 14, the sealing cover 14 seals the, a main stirring paddle 29 is arranged on the rotating shaft 30, an auxiliary stirring paddle 27 is arranged below the main stirring paddle 29, an asphalt pump 28 is arranged on one side of the interior of the hot melting box 12, a side support plate 2 is arranged on the front side surface of the frame 1, a slide 4 is arranged on the side support plate 2, a slide rod 5 is arranged on the slide 4, a rotary seat 34 is arranged at the upper end of the slide rod 5, a limit clamping groove 35 is arranged on the rotary seat 34, a tank seam pipe 45 is arranged on the limit clamping groove 35, a crack pouring gun 16 is arranged at one end of the tank seam pipe 45, the other end of the tank seam pipe 45 penetrates through the interior of the hot melting box 12 and is connected with the asphalt pump 28, a saddle 32 is arranged at the left end of the frame 1, a storage battery 46 is arranged at one side of the saddle 32, a handrail frame 24 is arranged on the storage battery 46, a handrail 18 is arranged at the upper end of the handrail frame 24, anti-skid grains are arranged on, the photovoltaic panel 17 is used for converting solar energy into electric energy, resources are saved, one side of the hot melting box 12 is provided with a sliding plate supporting frame 43, a fixed sliding plate 42 is arranged on the sliding plate supporting frame 43, a sliding groove 41 is formed in the lower surface of the fixed sliding plate 42, the fixed sliding plate 42 is connected with a sliding frame 44 through the sliding groove 41, a handle 40 is arranged on the upper surface of the sliding frame 44, telescopic rods 7 are arranged on two sides of the lower surface of the sliding frame 44, the lower end of each telescopic rod 7 is connected with a heating plate 6, and the heating plate 6 is used for heating a road surface to be repaired, so that the repaired road surface has no weak joint and can not burn the road surface, the service life of the road surface can be prolonged;
wherein: a dust collector 11 is arranged on one side of a sliding plate support frame 43, a first fixed support 9 is arranged on one side of the dust collector 11, a dust suction pipe 10 is arranged on the first fixed support 9, one end of the dust suction pipe 10 is connected with the dust collector 11, two support columns 3 are arranged between a photovoltaic plate support 26 and a hot melting box 12, the support columns 3 are respectively arranged on the front side and the rear side of the upper surface of a vehicle frame 1, vertical rods 19 are arranged on one side of each support column 3, warning lamps 23 are arranged at the upper ends of the vertical rods 19, a passerby can be warned through the warning lamps 23 to inform the front of construction and prevent accidents, a placing frame 15 is arranged at the upper ends of the support columns 3, a crack pouring gun 16 is fixed on the placing frame 15, the crack pouring gun 16 is conveniently prevented through the placing frame 15, the left end of the vehicle frame 1 is of a convex structure, pedals 33 are arranged on the two sides of the, the device is convenient to operate by operating the control box 25, so that the device is convenient to operate.
The invention provides a combined type crack pouring machine and a working principle thereof, comprising the following steps:
the method comprises the following steps: the warning lamp 23 is started through the control box 25, the first motor 21 drives the front wheel 8 to rotate through the driving shaft assembly 22, the rotating direction of the rear wheel 37 is changed through the pedal 33, the moving direction of the device can be changed, the device is moved to a working position, the dust collector 11 is started through the control box 25, and a worker operates the dust collection pipe 10 to collect dust on a position needing crack pouring and repairing;
step two: the sliding frame 44 is moved through the operating handle 40, the sliding frame 44 drives the heating plate 6 to move through the telescopic rod 7, the heating plate 6 is moved to the position right above the road surface to be repaired, the telescopic rod 7 is controlled to stretch through the control box 25, the telescopic rod 7 enables the heating end face of the heating plate 6 to be in contact with the road surface to be repaired, and the road surface is heated through the heating plate 6;
step three: an output shaft of the second motor 31 drives the rotating shaft 30 to rotate, the rotating shaft 30 drives the main stirring paddle 29 and the auxiliary stirring paddle 27 to rotate, a worker operates the crack pouring gun 16 to start the asphalt pump 28, asphalt is sprayed out through the crack pouring gun 16 through the crack pouring pipe 45, and the asphalt sprayed out by the crack pouring gun 16 repairs the pavement to be repaired;
step four: after the repair is finished, the asphalt pump 28 is turned off through the control box 25, the crack pouring gun 16 is placed on the placing frame 15, the heating plate 6 and the dust suction pipe 10 are reset, and the worker controls the device to move to the next repair point.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a modular pouring machine, includes frame and hot melt case, its characterized in that: the front side of the lower surface of the frame is provided with a driving front wheel, the left side of the driving front wheel is provided with a first motor, a driving shaft assembly is arranged between the first motor and the driving front wheel, the rear side of the lower surface of the frame is provided with a rear wheel, the upper end of the rear wheel is provided with a connecting plate, the connecting plate is provided with a connecting rotating shaft, the upper end of the connecting rotating shaft is provided with a fixed shaft seat, the fixed shaft seat is connected with the frame, one side of the upper surface of the connecting plate is provided with a pedal, the hot melting box is positioned in the middle of the upper surface of the frame, the center of the upper surface of the hot melting box is provided with a second motor, an output shaft of the second motor penetrates into the hot melting box, the output shaft of the second motor is connected with a rotating shaft through a coupler, a main stirring paddle is arranged on the rotating shaft, an, a slide bar is arranged on the slide way, a rotary seat is arranged at the upper end of the slide bar, a limit clamping groove is arranged on the rotary seat, a can seam pipe is arranged on the limit clamping groove, one end of the tank seam pipe is provided with a seam filling gun, the other end of the tank seam pipe penetrates into the hot melting box and is connected with an asphalt pump, a saddle is arranged at the left end of the frame, a storage battery is arranged on one side of the saddle, a handrail frame is arranged on the storage battery, the upper end of the handrail frame is provided with a handrail, one side of the handrail frame is provided with a photovoltaic panel bracket, a photovoltaic panel is arranged on the photovoltaic panel bracket, the upper end of the photovoltaic panel is connected with the upper end of the handrail frame, one side of the hot melting box is provided with a sliding plate supporting frame, the sliding plate supporting frame is provided with a fixed sliding plate, the lower surface of the fixed sliding plate is provided with a sliding groove, the fixed sliding plate is connected with a sliding frame through the sliding groove, the upper surface of the sliding frame is provided with a handle, telescopic rods are arranged on two sides of the lower surface of the sliding frame, and the lower ends of the telescopic rods are connected with heating plates;
wherein: one side of the sliding plate supporting frame is provided with a dust collector, one side of the dust collector is provided with a first fixing support, the first fixing support is provided with a dust collection pipe, and one end of the dust collection pipe is connected with the dust collector.
2. A modular caulking machine according to claim 1, wherein: be equipped with the support column between photovoltaic board support and the hot melt case, the quantity of support column is two, and the support column is located both sides around the frame upper surface respectively, the upper end of support column is equipped with the rack, and the rack is fixed with the cementation of fissures rifle.
3. A modular caulking machine according to claim 1, wherein: one side of the second motor is provided with a feed inlet, a sealing cover is arranged on the feed inlet, and a filter screen is arranged at the feed position of the feed inlet.
4. A modular caulking machine according to claim 1, wherein: the left end of the frame is of a convex structure, and the pedals are positioned on two sides of the left end of the frame.
5. A modular caulking machine according to claim 1, wherein: one side of support column is equipped with the pole setting, and the pole setting is extending structure, and the upper end of pole setting is equipped with the warning light.
6. The working principle of the combined type crack pouring machine according to claim 1,
comprises the following steps:
the method comprises the following steps: the warning lamp is started through the control box, the first motor drives the front wheel to rotate through the driving shaft assembly, the rotating direction of the rear wheel is changed through the pedal, the moving direction of the device can be further changed, the device is moved to a working position, the dust collector is started through the control box, and a worker operates the dust collection pipe to collect dust on a position needing crack pouring and repairing;
step two: the sliding frame is moved through the operating handle, the sliding frame drives the heating plate to move through the telescopic rod, the heating plate is moved to the position right above the road surface to be repaired, the telescopic rod is controlled to stretch through the control box, the telescopic rod enables the heating end face of the heating plate to be in contact with the road surface to be repaired, and the road surface is heated through the heating plate;
step three: an output shaft of the second motor drives the rotating shaft to rotate, the rotating shaft drives the main stirring paddle and the auxiliary stirring paddle to rotate, a worker operates the crack pouring gun and starts the asphalt pump, asphalt is sprayed out through the crack pouring gun through the crack pouring pipe, and the asphalt sprayed out by the crack pouring gun repairs the pavement to be repaired;
step four: accomplish to repairing the back, close the pitch pump through the control box, place the cementation of fissures rifle on the rack to reset hot plate and dust absorption pipe, this device of staff control moves to next repair the point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010695342.5A CN112064480A (en) | 2020-07-20 | 2020-07-20 | Combined type crack pouring machine and working principle thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010695342.5A CN112064480A (en) | 2020-07-20 | 2020-07-20 | Combined type crack pouring machine and working principle thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112064480A true CN112064480A (en) | 2020-12-11 |
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ID=73656581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010695342.5A Pending CN112064480A (en) | 2020-07-20 | 2020-07-20 | Combined type crack pouring machine and working principle thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN112064480A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU727731A1 (en) * | 1978-04-10 | 1980-04-15 | Государственный Дорожный Научно-Исследовательский Институт "Госдорнии" | Method of working cracks in asphalt and concrete coatings |
| CN102373684A (en) * | 2010-08-08 | 2012-03-14 | 卢树林 | Combined multifunctional enclosed type automatic dust collecting cleaner |
| CN206646385U (en) * | 2017-03-19 | 2017-11-17 | 李秀丽 | A kind of asphalt highway pit repairing car |
| CN207700016U (en) * | 2017-12-14 | 2018-08-07 | 宁波交通工程建设集团有限公司 | A kind of novel asphalt construction of the highway crack repairing device |
| CN208121534U (en) * | 2017-04-18 | 2018-11-20 | 中建路桥集团有限公司 | A kind of filling and sealing machine for highway engineering |
| US20190010667A1 (en) * | 2017-07-10 | 2019-01-10 | Cimline, Inc. | Methods and Apparatus for Repairing Road Surfaces |
| CN209276963U (en) * | 2018-12-12 | 2019-08-20 | 中山安畅机械科技有限公司 | The dust exhaust apparatus being integrated on pouring machine |
| CN110541346A (en) * | 2019-09-12 | 2019-12-06 | 河北扶波机械制造有限公司 | Pavement hot in-place recycling double-layer repairing vehicle |
-
2020
- 2020-07-20 CN CN202010695342.5A patent/CN112064480A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU727731A1 (en) * | 1978-04-10 | 1980-04-15 | Государственный Дорожный Научно-Исследовательский Институт "Госдорнии" | Method of working cracks in asphalt and concrete coatings |
| CN102373684A (en) * | 2010-08-08 | 2012-03-14 | 卢树林 | Combined multifunctional enclosed type automatic dust collecting cleaner |
| CN206646385U (en) * | 2017-03-19 | 2017-11-17 | 李秀丽 | A kind of asphalt highway pit repairing car |
| CN208121534U (en) * | 2017-04-18 | 2018-11-20 | 中建路桥集团有限公司 | A kind of filling and sealing machine for highway engineering |
| US20190010667A1 (en) * | 2017-07-10 | 2019-01-10 | Cimline, Inc. | Methods and Apparatus for Repairing Road Surfaces |
| CN207700016U (en) * | 2017-12-14 | 2018-08-07 | 宁波交通工程建设集团有限公司 | A kind of novel asphalt construction of the highway crack repairing device |
| CN209276963U (en) * | 2018-12-12 | 2019-08-20 | 中山安畅机械科技有限公司 | The dust exhaust apparatus being integrated on pouring machine |
| CN110541346A (en) * | 2019-09-12 | 2019-12-06 | 河北扶波机械制造有限公司 | Pavement hot in-place recycling double-layer repairing vehicle |
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Application publication date: 20201211 |
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| RJ01 | Rejection of invention patent application after publication |