CN113481919A - Highway road surface sand cleaning equipment that highway engineering of environmental protection was used - Google Patents
Highway road surface sand cleaning equipment that highway engineering of environmental protection was used Download PDFInfo
- Publication number
- CN113481919A CN113481919A CN202110860118.1A CN202110860118A CN113481919A CN 113481919 A CN113481919 A CN 113481919A CN 202110860118 A CN202110860118 A CN 202110860118A CN 113481919 A CN113481919 A CN 113481919A
- Authority
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- China
- Prior art keywords
- sand
- feeding cavity
- guide plate
- vehicle body
- road surface
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
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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
- E01C23/065—Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing paving
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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
- E01C23/0966—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 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 relates to the technical field of sand cleaning equipment, and discloses an environment-friendly highway pavement sand cleaning equipment for highway engineering, which comprises: the road pavement sand cleaning equipment comprises a vehicle body, a guide plate, a feeding cavity and a liquid storage tank, wherein the guide plate is downwards inclined and fixedly connected to the front end of the vehicle body, sand inlets are formed in the bottom and the lower end of the front side of the guide plate, a sand inlet channel penetrating through the guide plate in the length direction is arranged in the guide plate, the feeding cavity is formed in the vehicle body and is communicated with the sand inlet channel, the feeding cavity is communicated with a vacuum pump, a weighing scale is connected to the bottom of the feeding cavity, a stirring mechanism is further arranged in the feeding cavity, a discharging pipeline is connected to the bottom of the feeding cavity, a first electromagnetic valve is connected to the discharging pipeline, a distance sensor is further arranged on the discharging pipeline, the liquid storage tank is fixed in the vehicle body and is communicated with the feeding cavity through a liquid conveying pipe, and a second electromagnetic valve is connected to the liquid conveying pipe.
Description
Technical Field
The invention relates to the technical field of sand cleaning equipment, in particular to an environment-friendly highway pavement sand cleaning equipment for highway engineering.
Background
At present, most of roads are cement concrete pavements, and the maintenance time of the roads is specified to be not less than 7 days except for portland cement and common cement; the other slag cement, the mountain ash cement and the fly ash cement are not less than 14 days; the curing time of the concrete doped with the fly ash is not less than 14 days, if the curing time is not enough, a large amount of water is evaporated in the sun or dry air, the evaporation of the surface water is greater than the bleeding speed of the concrete, so that a large amount of surface water is volatilized, the cement can slow down or even stop hydration, the surface cement cannot be sufficiently hydrated, the surface layer cannot reach the design strength, and the surface strength cannot be enough to cause the quality problems of dusting or sanding and the like. The cement concrete pavement is mainly caused by bleeding, and from many case analyses, the condition that the concrete surface is caused by bleeding to be ashed or dusted is the vast majority.
Some sand cleaning equipment for highway pavements also appear at present, and generally comprise a lifting device, a driving device and a cleaning device connected to the lifting device, wherein the lifting device is driven to be lowered by the driving device in the process of cleaning sand, so that the cleaning device cleans the sand on the ground, and the cleaning of the sand on the pavement is realized.
However, such sand cleaning equipment basically cleans road surface sand to both sides of a road or collects the sand for centralized treatment, and for a sand-removing road surface caused by bleeding, due to sand removal on the road surface, pits inevitably appear on the road surface, and if the sand is only treated, the pits are exposed, and if the sand is removed, the pits are exposed, and the sand is removed again after the sand is removed, so that a vicious circle is formed, the sand needs to be cleaned repeatedly, meanwhile, the road surface is greatly damaged, and the maintenance is troublesome.
Disclosure of Invention
The invention provides an environment-friendly highway pavement sand cleaning device for highway engineering, which can be used for filling a depression caused by sand blasting on a pavement by using cleaned sand when the sand on the surface layer of the pavement is cleaned.
The invention provides an environment-friendly highway pavement sand cleaning device for highway engineering, which comprises:
the guide plate is downwards inclined and fixedly connected to the front end of the vehicle body, sand inlets are formed in the bottom and the lower end of the front side of the guide plate, a sand inlet channel penetrating through the guide plate in the length direction is formed in the guide plate, and the sand inlet channel is communicated with each sand inlet;
the sand-pumping device comprises a vehicle body, a sand-feeding channel, a vacuumizing pump, a weighing scale, a stirring mechanism, a first electromagnetic valve, a distance sensor and a sand-feeding pump, wherein the charging cavity is formed in the vehicle body and communicated with the sand-feeding channel;
and the liquid storage tank is fixed in the trolley body and is positioned above the feeding cavity, the liquid storage tank is communicated with the feeding cavity through a liquid conveying pipe, and the liquid conveying pipe is connected with a second electromagnetic valve.
Optionally, the lower end of the vehicle body is further provided with a first wheel carrier, the first wheel carrier is movably connected with a pressing wheel through a first rotating shaft, and the pressing wheel is located behind the discharging pipeline.
Optionally, a vibrator is connected between the wheel carrier and the vehicle body to enable the pressing wheel to vibrate up and down.
Optionally, a plurality of heating plates are uniformly distributed on the periphery of the pressing wheel.
Optionally, the stirring mechanism includes:
the motor is fixed on the upper cavity wall of the feeding cavity, and an output shaft of the motor is vertically downward;
the stirring shaft is vertically arranged in the feeding cavity, the upper end of the stirring shaft is connected with an output shaft of the motor, and a plurality of stirring blades are fixed on the stirring shaft.
Optionally, the lower end of the stirring shaft is movably connected with the bottom wall of the feeding cavity through a bearing.
Optionally, one corner of the guide plate close to the ground is connected with a roller through a second wheel carrier.
Optionally, a placing groove is formed in the guide plate along the length direction of the guide plate, a spring is fixed on the bottom wall in the placing groove, and the upper end of the second wheel carrier extends into the placing groove and is fixedly connected with the lower end of the spring.
Compared with the prior art, the invention has the beneficial effects that: the vehicle body is moved to a road surface sanding position, road surface sand finally enters the feeding cavity through the sand inlet channel and the guide pipe along the sand inlet on the guide plate by starting the vacuum pump, the guide plate is arranged in a downward inclined mode, the sand is arranged in front of the guide plate, the sand inlet at the bottom of the front side of the guide plate can enable the sand to smoothly enter the sand inlet channel, the sand inlet at the lower end of the guide plate can ensure that partial sand can be smoothly sucked into the sand inlet channel when entering the lower portion of the guide plate due to adsorption force, so that the sand at the current position is completely sucked, the vacuum pump is closed after the sand is sucked, the microprocessor receives the weighed sand weight in the feeding cavity, controls the opening time of the second electromagnetic valve according to the sand weight to control the mass of liquid (water and gel liquid) flowing into the feeding cavity, and controls the stirring mechanism to stir for a fixed time, after the stirring, along with the removal of automobile body, distance sensor real-time detection is present ground apart from the distance of ejection of compact pipeline, when this distance is greater than preset distance, indicate that there is the hole here, microprocessor control first solenoid valve is opened and is made the mortar of feeding intracavity discharge to present ground department from ejection of compact pipeline, distance sensor real-time detection is present ground apart from the distance of ejection of compact pipeline at this in-process, when this distance equals or is less than preset distance, indicate that the hole has been filled up to the mortar, then control first solenoid valve and close, and then can fill up the hole that the sand starting causes when having realized the road surface is sand removing, avoid the hole bleeding sand starting once more.
Drawings
Fig. 1 is a schematic structural diagram of a road surface sand cleaning device for environmental protection road engineering according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of the structure at G in FIG. 1;
fig. 3 is an enlarged view of a portion of the structure at H in fig. 1.
Description of reference numerals:
10-a vehicle body, 11-a distance sensor, 20-a guide plate, 21-a sand inlet, 22-a sand inlet channel, 23-a placement groove, 24-a spring, 30-a feeding cavity, 31-a guide pipe, 32-a vacuum pump, 33-a discharging pipeline, 34-a first electromagnetic valve, 35-a weighing scale, 40-a liquid storage tank, 41-a liquid conveying pipe, 42-a second electromagnetic valve, 50-a stirring mechanism, 500-a motor, 501-a stirring shaft, 502-a stirring blade, 503-a bearing, 60-a first wheel carrier, 61-a pressing wheel, 62-a vibrator, 63-a heating piece, 70-a second wheel carrier and 71-a roller.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing technical solutions of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, the environment-friendly road surface sand cleaning device for road engineering provided by the embodiment of the invention comprises a vehicle body 10, a guide plate 20, a feeding cavity 30, a liquid storage tank 40 and a microprocessor, wherein the guide plate 20 is fixedly connected to the front end of the vehicle body 10 in a downward inclined manner, the bottom and the lower end of the front side of the guide plate 20 are respectively provided with a sand inlet 21, a sand inlet passage 22 penetrating through the guide plate 20 in the length direction is arranged in the guide plate 20, the sand inlet passage 22 is communicated with each sand inlet 21, the feeding cavity 30 is formed in the vehicle body 10, the feeding cavity 30 is communicated with the sand inlet passage 22 through a guide pipe 31, the feeding cavity 30 is communicated with a vacuum pump 32 so as to form a negative pressure environment in the feeding cavity 30, the bottom of the feeding cavity 30 is connected with a weighing scale 35, a stirring mechanism 50 is further arranged in the feeding cavity 30, the bottom of the feeding cavity 30 is connected with a discharging pipeline 33, the discharging pipeline 33 extends out of the lower end of the vehicle body 10, the discharging pipeline 33 is connected with a first electromagnetic valve 34, the discharging pipeline 33 is also provided with a distance sensor 11, the distance sensor 11 is used for detecting the distance from the ground to the discharging pipeline 33, the liquid storage tank 40 is fixed in the vehicle body 10, the liquid storage tank 40 is positioned above the feeding cavity 30, the liquid storage tank 40 is communicated with the feeding cavity 30 through a liquid conveying pipe 41, the liquid conveying pipe 41 is connected with a second electromagnetic valve 42, the microprocessor is respectively in signal connection with the vacuum pumping pump 32, the weighing scale 35, the stirring mechanism 50, the distance sensor 11, the first electromagnetic valve 34 and the second electromagnetic valve 42, after the microprocessor controls the vacuum pumping pump 32 to be closed, the microprocessor receives the weight of sand weighed by the weighing scale 35, controls the opening duration of the second electromagnetic valve 42 according to the weight of the sand to control the liquid quality flowing into the feeding cavity 30, and controls the stirring duration of the stirring mechanism 50 to be fixed, after the stirring is finished, along with the movement of the vehicle body 10, the distance sensor 11 detects the distance from the ground to the discharging pipeline 33 in real time, when the distance is greater than the preset distance, the microprocessor controls the first electromagnetic valve 34 to open so that the mortar in the feeding cavity 30 is discharged from the discharging pipeline 33 to the current ground, in the process, the distance sensor 11 detects the distance from the current ground to the discharging pipeline 33 in real time, and when the distance is equal to or less than the preset distance, the microprocessor controls the first electromagnetic valve 34 to close.
The vehicle body is moved to a road surface sanding position, road surface sand finally enters the feeding cavity through the sand inlet channel and the guide pipe along the sand inlet on the guide plate by starting the vacuum pump, the guide plate is arranged in a downward inclined mode, the sand is arranged in front of the guide plate, the sand inlet at the bottom of the front side of the guide plate can enable the sand to smoothly enter the sand inlet channel, the sand inlet at the lower end of the guide plate can ensure that partial sand can be smoothly sucked into the sand inlet channel when entering the lower portion of the guide plate due to adsorption force, so that the sand at the current position is completely sucked, the vacuum pump is closed after the sand is sucked, the microprocessor receives the weighed sand weight in the feeding cavity, controls the opening time of the second electromagnetic valve according to the sand weight to control the mass of liquid (water and gel liquid) flowing into the feeding cavity, and controls the stirring mechanism to stir for a fixed time, after the stirring, along with the removal of automobile body, distance sensor real-time detection is present ground apart from the distance of ejection of compact pipeline, when this distance is greater than preset distance, indicate that there is the hole here, microprocessor control first solenoid valve is opened and is made the mortar of feeding intracavity discharge to present ground department from ejection of compact pipeline, distance sensor real-time detection is present ground apart from the distance of ejection of compact pipeline at this in-process, when this distance equals or is less than preset distance, indicate that the hole has been filled up to the mortar, then control first solenoid valve and close, and then can fill up the hole that the sand starting causes when having realized the road surface is sand removing, avoid the hole bleeding sand starting once more.
Referring to fig. 3, a first wheel carrier 60 is further installed at the lower end of the vehicle body 10, a pressing wheel 61 is movably connected to the first wheel carrier 60 through a first rotating shaft, the pressing wheel 61 is located behind the discharging pipeline 33, and after the hollow is filled with mortar, bubbles in the mortar are discharged through back and forth rolling of the pressing wheel 61, so that the mortar is more densely filled in the hollow and solidification of the mortar is accelerated.
Optionally, a vibrator 62 is connected between the wheel carrier 60 and the vehicle body 10 to enable the pressing wheel 61 to vibrate up and down, and the vibrator 62 can also enable mortar to be more densely filled in the hollow position to accelerate solidification of the mortar.
Optionally, a plurality of heating plates 63 are uniformly distributed on the periphery of the pressing wheel 61, and the mortar can be heated by the heating plates 63 while the pressing wheel 61 rolls, so that redundant moisture is evaporated in time, and the solidification of the mortar is further accelerated.
In this embodiment, the stirring mechanism 50 includes a motor 500 and a stirring shaft 501, the motor 500 is fixed on the upper cavity wall of the feeding cavity 30, the output shaft of the motor 500 is vertically downward, the stirring shaft 501 is vertically disposed in the feeding cavity 30, the upper end of the stirring shaft 501 is connected with the output shaft of the motor 500, a plurality of stirring blades 502 are fixed on the stirring shaft 501, and the motor 500 is powered on to stir the mortar in the feeding cavity 30.
Optionally, the lower end of the stirring shaft 501 is movably connected with the bottom wall of the feeding cavity 30 through a bearing 503, so that the stability of rotation of the stirring shaft 501 is ensured.
Optionally, a roller 71 is connected to a corner of the guiding plate 20 close to the ground through the second wheel frame 70, so that in order to avoid damage to the guiding plate 20 caused by the guiding plate 20 directly contacting the ground, the roller 71 can convert sliding friction between the guiding plate 20 and the ground in the present embodiment.
Referring to fig. 2, the guide plate 20 is provided with a placement groove 23 arranged along the length direction thereof, a spring 24 is fixed on the bottom wall in the placement groove 23, the upper end of the second wheel carrier 70 extends into the placement groove 23 and is fixedly connected with the lower end of the spring, so that the roller 71 is always abutted against the ground, and the guide plate 20 is further prevented from being damaged due to the fact that the guide plate 20 directly contacts the ground.
The use method and the working principle are as follows: the vehicle body 10 is moved to a road surface sanding position, road surface sand finally enters the feeding cavity 30 through the sand inlet channel 22 and the guide pipe 31 along the sand inlet 21 on the guide plate 20 by starting the vacuum pump 32, after the sand is sucked, the vacuum pump 32 is closed, the microprocessor receives the weight of the sand in the feeding cavity 30 weighed by the weighing scale 35 at the moment, controls the opening time of the second electromagnetic valve 42 according to the weight of the sand to control the mass of liquid (water and gel liquid) flowing into the feeding cavity 30, the liquid flows into the feeding cavity 30 under the action of gravity, other equipment is not required to be additionally added, as the diameter of the liquid conveying pipe 41 is fixed, the mass of the liquid flowing in unit time is constant, the mass of the liquid (water and gel liquid) flowing into the feeding cavity 30 can be controlled by controlling the opening time of the second electromagnetic valve 42, and the specific gravities of the liquid and the sand are set in advance according to a fixed specific gravity, meanwhile, the motor 500 is controlled to rotate to drive the stirring blades 502 to stir for a fixed time, after stirring is finished, the distance sensor 11 detects the distance from the current ground to the discharging pipeline 33 in real time along with the movement of the vehicle body 10, when the distance is greater than a preset distance, it is indicated that a pothole exists, the microprocessor controls the first electromagnetic valve 34 to be opened to discharge mortar in the feeding cavity 30 to the current ground from the discharging pipeline 33, in the process, the distance sensor 11 detects the distance from the current ground to the discharging pipeline 33 in real time, when the distance is equal to or smaller than the preset distance, it is indicated that the pothole is filled with the mortar, the first electromagnetic valve 34 is controlled to be closed, so that the pothole caused by the sand-out position can be filled while sand cleaning the road surface, the vehicle body 10 is moved again, the pressing wheel 61 is repeatedly pressed on the mortar, and the mortar is more densely filled in the pothole through the vertical vibration of the vibrator 62, meanwhile, the heating plate 63 can heat the mortar while the pressing wheel 61 rolls, so that redundant moisture is evaporated in time, and the solidification of the mortar is further accelerated.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (8)
1. The utility model provides a clear sand equipment of highway road surface that highway engineering of environmental protection was used, includes automobile body (10), its characterized in that still includes:
the guide plate (20) is downwards inclined and fixedly connected to the front end of the vehicle body (10), sand inlets (21) are formed in the bottom and the lower end of the front side of the guide plate (20), a sand inlet channel (22) penetrating through the guide plate (20) in the length direction is formed in the guide plate (20), and the sand inlet channel (22) is communicated with each sand inlet (21);
the sand inlet device comprises a vehicle body (10), a feeding cavity (30), a vacuumizing pump (32), a weighing scale (35) and a discharging pipeline (33), wherein the feeding cavity (30) is formed inside the vehicle body (10), the feeding cavity (30) is communicated with a sand inlet channel (22), the feeding cavity (30) is connected with the vacuumizing pump (32), the bottom of the feeding cavity (30) is connected with the weighing scale (35) and the discharging pipeline (33), a stirring mechanism (50) is further arranged in the feeding cavity (30), the discharging pipeline (33) is connected with a first electromagnetic valve (34), the discharging pipeline (33) is further provided with a distance sensor (11), and the distance sensor (11) is used for detecting the distance from the ground to the discharging pipeline (33);
the liquid storage tank (40) is fixed in the trolley body (10), the liquid storage tank (40) is located above the feeding cavity (30), the liquid storage tank (40) is communicated with the feeding cavity (30) through a liquid conveying pipe (41), and the liquid conveying pipe (41) is connected with a second electromagnetic valve (42).
2. The environment-friendly road surface sand cleaning equipment for the road engineering as claimed in claim 1, wherein a first wheel carrier (60) is further mounted at the lower end of the vehicle body (10), a pressing wheel (61) is movably connected to the first wheel carrier (60) through a first rotating shaft, and the pressing wheel (61) is located behind the discharge pipeline (33).
3. The environmentally friendly road surface cleaning apparatus for road engineering according to claim 2, wherein a vibrator (62) is connected between the wheel frame (60) and the vehicle body (10) to vibrate the pressing wheel (61) up and down.
4. The environment-friendly road surface sand removing device for road engineering according to claim 2 or 3, wherein a plurality of heating plates (63) are uniformly distributed on the periphery of the pressing wheel (61).
5. The environmentally friendly road surface cleaning equipment for road engineering according to claim 1 or 2, wherein the stirring mechanism (50) comprises:
the motor (500) is fixed on the upper cavity wall of the feeding cavity (30), and an output shaft of the motor (500) faces downwards vertically;
the stirring shaft (501) is vertically arranged in the feeding cavity (30), the upper end of the stirring shaft (501) is connected with an output shaft of the motor (500), and a plurality of stirring blades (502) are fixed on the stirring shaft (501).
6. The environment-friendly highway pavement sand cleaning equipment for highway engineering according to claim 5, wherein the lower end of the stirring shaft (501) is movably connected with the bottom wall of the feeding cavity (30) through a bearing (503).
7. The environment-friendly road surface sand cleaning equipment for road engineering according to claim 1 or 2, wherein a roller (71) is connected to one corner of the guide plate (20) close to the ground through a second wheel carrier (70).
8. The environment-friendly road surface sand cleaning equipment for road engineering according to claim 7, wherein the guide plate (20) is internally provided with a placing groove (23) arranged along the length direction thereof, a spring (24) is fixed on the bottom wall in the placing groove (23), and the upper end of the second wheel carrier (70) extends into the placing groove (23) and is fixedly connected with the lower end of the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110860118.1A CN113481919A (en) | 2021-07-28 | 2021-07-28 | Highway road surface sand cleaning equipment that highway engineering of environmental protection was used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110860118.1A CN113481919A (en) | 2021-07-28 | 2021-07-28 | Highway road surface sand cleaning equipment that highway engineering of environmental protection was used |
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| Publication Number | Publication Date |
|---|---|
| CN113481919A true CN113481919A (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110860118.1A Pending CN113481919A (en) | 2021-07-28 | 2021-07-28 | Highway road surface sand cleaning equipment that highway engineering of environmental protection was used |
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| CN (1) | CN113481919A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808627A (en) * | 2022-06-29 | 2022-07-29 | 湖北省高创公路工程咨询监理有限公司 | Highway construction quality supervision equipment and method |
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| CN112482182A (en) * | 2020-12-02 | 2021-03-12 | 曹雪丽 | Road marking device for municipal construction |
| CN112962408A (en) * | 2021-02-09 | 2021-06-15 | 张家口翰得交通公路勘察设计有限责任公司 | Highway pavement repairing structure and repairing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114808627A (en) * | 2022-06-29 | 2022-07-29 | 湖北省高创公路工程咨询监理有限公司 | Highway construction quality supervision equipment and method |
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