CN111287049B - Automatic cement concrete pavement's equipment paves - Google Patents
Automatic cement concrete pavement's equipment paves Download PDFInfo
- Publication number
- CN111287049B CN111287049B CN202010203252.XA CN202010203252A CN111287049B CN 111287049 B CN111287049 B CN 111287049B CN 202010203252 A CN202010203252 A CN 202010203252A CN 111287049 B CN111287049 B CN 111287049B
- Authority
- CN
- China
- Prior art keywords
- concrete
- cavity
- swing rod
- rod
- stirring
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/46—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing and placing the materials, e.g. slurry seals
- E01C19/47—Hydraulic cement concrete mixers combined with distributing means specially adapted for road building
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/46—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing and placing the materials, e.g. slurry seals
- E01C19/47—Hydraulic cement concrete mixers combined with distributing means specially adapted for road building
- E01C19/475—Distributing means therefor, e.g. boom-and-bucket arrangements
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4866—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely non-vibratory or non-percussive pressing or smoothing means for consolidating or finishing
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses equipment for automatically paving a cement concrete pavement, which comprises a stirring box positioned on the right side of a vehicle body, wherein a feeding frame capable of feeding concrete into the stirring box is fixedly arranged on the top wall of the stirring box, a feeding cavity with an upward opening is arranged in the feeding frame, and a stirring cavity is arranged at the lower side of the feeding cavity.
Description
Technical Field
The invention relates to the technical field of cement concrete paving, in particular to equipment for automatically paving a cement concrete pavement.
Background
The concrete of general cement concrete road surface paves the in-process and needs the staff to command and unload, and evenly unload according to per car concrete quantity, must strictly control just can ensure the condition of not lack of material nor many material, and need dispose concrete mixing plant specially and ensure the quality of paving, the consumption of cost has been increased, after paving, the staff need arrange in order the pull rod, guarantee the parallel and the level of pull rod, thereby ensure that the concrete surface is level and not lack the material, but this is not only inefficient, and can not guarantee the level quality of concrete surface.
Disclosure of Invention
The object of the present invention is to provide an apparatus for automatically laying a cement concrete pavement, which overcomes the above-mentioned drawbacks of the prior art.
The equipment for automatically paving the cement concrete pavement comprises a stirring box positioned on the right side of a vehicle body, wherein a feeding frame capable of feeding concrete into the stirring box is fixedly arranged on the top wall of the stirring box, a feeding cavity with an upward opening is arranged in the feeding frame, a stirring cavity is arranged on the lower side of the feeding cavity, a stirring shaft is rotatably arranged in the stirring cavity, a discharging pipeline is arranged on the right wall of the stirring box in a penetrating manner, a first ball valve for controlling the concrete in the stirring cavity to flow out is arranged in the discharging pipeline, a fixed block is fixedly arranged on the right side of the vehicle body, a first cavity penetrating from left to right is arranged in the fixed block, a second cavity with a rightward opening is arranged on the lower side of the first cavity, a threaded rod is rotatably arranged in the second cavity, a guide block is connected onto the threaded rod in a threaded manner, a first fixing rod is fixedly arranged on the right side of the fixed block, and, it paves the chamber to be equipped with concrete in the material frame to hold in the palm, the concrete that the chamber upside that paves is equipped with the concrete spraying case that can store and spout the concrete, the fixed block right side has set firmly dead lever two, be equipped with cavity three in the dead lever two, axis of rotation one is installed to three internal rotations of cavity, slidable mounting has the sliding block in the cavity three, the sliding block downside has set firmly the concrete and has paved the case, thereby concrete paves the case right side and is equipped with and can detect whether smooth laser detector of concrete road surface through laser scanning, be equipped with the cavity in the concrete paves the incasement, the position symmetry is equipped with the concrete paves the device that can be with the concrete road surface flattening after the spreading around in the cavity, the rotation of symmetry is installed power shaft one in the cavity, be located in the concrete pave the incasement with a motor that power shaft is connected is one, The concrete surface leveling device comprises a first swing rod fixedly mounted on the first power shaft, a first connecting rod hinged with the first swing rod, a leveling block hinged with the lower side of the first connecting rod and capable of leveling a concrete surface, a second swing rod hinged with the left side of the first connecting rod, and a second rotating shaft fixedly mounted with the second swing rod and rotatably mounted in the cavity.
On the basis of the technical scheme, the stirring shafts are uniformly provided with stirring rods capable of stirring concrete, and the upper sides of the stirring shafts are located in the stirring boxes and are connected with a second motor in a power connection mode.
On the basis of the technical scheme, be equipped with the chamber of keeping in the concrete injection case, the chamber upside of keeping in run through with ejection of compact pipe connection is equipped with and stretches out the transportation hose of cavity one, the chamber downside of keeping in runs through and is equipped with the ball valve two that can control the concrete and see off, two downside of ball valve have set firmly the concrete shower nozzle.
On the basis of the technical scheme, the front side of the threaded rod is located inside the fixed block and is dynamically connected with a motor III, the right side of the guide block is fixedly provided with a fixed rod III, and the fixed rod III is fixedly connected with the concrete injection box.
On the basis of the technical scheme, the first rotating shaft is fixedly provided with a gear meshed with the left side of the sliding block, and the rear side of the first rotating shaft is located inside the second fixing rod and is in power connection with a fourth motor.
On the basis of the technical scheme, the concrete paving device comprises a second power shaft, a third swing rod and a third swing rod, wherein the second power shaft is positioned in the cavity, the first left front position and the second left rear position of the swing rod are symmetrically provided with a motor fifth, the motor fifth is in power connection with the second power shaft and has the same rotating speed as the motor fifth, the third swing rod is fixedly arranged on the second power shaft, the third swing rod is in fixed installation with the third swing rod, the third swing rod is hinged to the third swing rod, the fourth swing rod is hinged to the left of the third swing rod, the fourth swing rod is fixedly arranged and is rotatably arranged on the third swing rod, and the third connecting rod is hinged to the leveling block.
The invention has the beneficial effects that: the invention realizes the purpose of spraying and paving concrete while stirring by connecting the stirring box and the concrete spraying cavity by the conveying hose, improves the concrete paving efficiency, and enables the leveling block to carry out the reciprocating motion of an elliptical track to level the concrete surface paved on the lower side by hinging the swing rod and the connecting rod which are matched, thereby improving the concrete paving quality and avoiding the condition of pothole on the road surface caused by uneven paving.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view showing the overall construction of an apparatus for automatically paving a cement concrete pavement according to the present invention;
FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;
FIG. 3 is a schematic view of the structure in the direction "B-B" in FIG. 1;
fig. 4 is an enlarged structural view of "C" in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Referring to fig. 1-4, an apparatus for automatically paving a cement concrete pavement according to an embodiment of the present invention includes a stirring box 10 located on the right side of a vehicle body 11, a feeding frame 12 capable of feeding concrete into the stirring box 10 is fixedly disposed on the top wall of the stirring box 10, a feeding cavity 13 with an upward opening is disposed in the feeding frame 12, a stirring cavity 15 is disposed on the lower side of the feeding cavity 13, a stirring shaft 16 is rotatably disposed in the stirring cavity 15, a discharging pipeline 18 is disposed on the right wall of the stirring box 10 in a penetrating manner, a ball valve 19 for controlling the concrete in the stirring cavity 15 to flow out is disposed in the discharging pipeline 18, a fixed block 20 is fixedly disposed on the right side of the vehicle body 11, a first cavity 21 penetrating from left to right is disposed in the fixed block 20, a second cavity 27 with an opening toward right is disposed on the lower side of the first cavity 21, a threaded rod 29 is rotatably disposed in the second cavity 27, the fixed block 20 right side has set firmly dead lever one 31, dead lever one 31 right side has set firmly holds in the palm the material frame 33 that transversely paves the concrete, it paves the chamber 32 to hold in the palm to be equipped with the concrete in the material frame 33, the concrete paves the chamber 32 upside and is equipped with the concrete injection case 24 that can store and spout the concrete, fixed block 20 right side has set firmly dead lever two 34, be equipped with cavity three 35 in the dead lever two 34, the internal rotation of cavity three 35 installs axis of rotation one 37, slidable mounting has sliding block 39 in the cavity three 35, sliding block 39 downside has set firmly concrete paving case 40, thereby concrete paving case 40 right side is equipped with can detect whether smooth laser detector 41 of concrete road surface through laser scanning, be equipped with cavity 42 in the concrete paving case 40, position symmetry is equipped with the concrete paving device 901 that can be with the concrete road surface flattening after the spreading around in the cavity 42, the concrete paving device 901 comprises a first power shaft 60 which is arranged in the cavity 42 in a rotating mode and is symmetrical in the front-back mode, a first motor 43 which is arranged in the concrete paving box 40 and is in power connection with the first power shaft 60, a first swing rod 44 which is fixedly arranged on the first power shaft 60, a first connecting rod 46 which is hinged with the first swing rod 44, a leveling block 47 which is hinged with the lower side of the first connecting rod 46 and can level the concrete surface, a second swing rod 49 which is hinged with the left side of the first connecting rod 46, and a second rotating shaft 58 which is fixedly arranged with the second swing rod 49 and is rotatably arranged in the cavity 42.
In addition, in an embodiment, the stirring shafts 16 are uniformly provided with stirring rods 17 capable of stirring concrete, the second motor 14 is in power connection with the upper side of the stirring shaft 16 in the stirring box 10, and if concrete is to be stirred, the second motor 14 is started to drive the stirring shaft 16 to rotate, so that the stirring rods 17 are driven to stir the concrete in the stirring cavity 15, and the purpose of stirring the concrete is achieved.
In addition, in one embodiment, a temporary storage cavity 23 is arranged in the concrete spraying box 24, a transportation hose 22 extending out of the first cavity 21 is arranged on the upper side of the temporary storage cavity 23 in a penetrating manner and connected with the discharge pipeline 18, a second ball valve 25 capable of controlling concrete to be discharged is arranged on the lower side of the temporary storage cavity 23 in a penetrating manner, and a concrete sprayer 26 is fixedly arranged on the lower side of the second ball valve 25.
In addition, in an embodiment, threaded rod 29 front side is located power connection has motor three 56 in the fixed block 20, guide block 30 right side has set firmly dead lever three 28, dead lever three 28 with concrete injection case 24 fixed connection, if will pave the concrete, then open ball valve 19 to make the concrete in the stir chamber 15 send into in the chamber 23 of keeping in, thereby make the concrete see through concrete nozzle 26 and spout in concrete paving chamber 32 through opening ball valve two 25, start motor three 56 simultaneously and drive threaded rod 29 and rotate, thereby drive guide block 30 backward slip through screw transmission and drive concrete injection case 24 backward slip, thereby drive guide block 30 forward slip through motor three 56 reversal and drive concrete injection case 24 forward slip, realize the purpose of horizontal concrete paving.
In addition, in one embodiment, a gear 36 engaged with the left side of the sliding block 39 is fixedly installed on the first rotating shaft 37, a motor four 38 is dynamically connected to the rear side of the first rotating shaft 37 in the second fixing rod 34, if the leveling height of the concrete is to be adjusted, the motor four 38 is started to drive the first rotating shaft 37 to rotate, so that the gear 36 is driven to rotate, and the sliding block 39 is driven to slide upwards through the engagement transmission between the gear and the rack, so that the purpose of adjusting the leveling height of the concrete is achieved.
In addition, in one embodiment, the concrete paving device 901 includes a second power shaft 57 which is positioned at the left side of the first swing link 44 and is provided with a second motor which is rotatably installed in the cavity 42, a fifth motor 51 which is positioned in the concrete paving box 40 and is in power connection with the second power shaft 57 and has the same rotating speed as the first motor 43, a third swing link 52 which is fixedly installed on the second power shaft 57, a second connecting rod 45 which is hinged between the third swing link 52 and the concrete paving box 40, a third connecting rod 53 which is hinged with the left side of the third swing link 52, a fourth swing link 55 which is hinged with the left side of the third connecting rod 53, a third rotating shaft 59 which is fixedly installed in the cavity 42 and is rotatably installed with the fourth swing link 55, the third connecting rod 53 is hinged with the leveling block 47, and if the paved concrete surface is to be leveled, the first motor 43 is started to drive the first power shaft 60 to rotate, thereby driving the first swing rod 44 to rotate, driving the first connecting rod 46 to move downwards through hinged fit, driving the second swing rod 49 to rotate, simultaneously starting the fifth motor 51 to drive the second power shaft 57 to rotate, driving the third connecting rod 53 to move downwards through hinged fit, and driving the fourth swing rod 55 to rotate, so that the leveling block 47 performs reciprocating motion with an elliptical track, and the purpose of leveling the concrete surface at the lower side of the cavity 42 is realized.
In the initial state, the first ball valve 19 is closed, the second ball valve 25 is closed, the sliding block 39 abuts against the upper side of the second fixed rod 34, and the guide block 30 is located at the tail end of the rear side of the second cavity 27.
When a cement concrete pavement needs to be paved on the ground, the stirring rod 17 is driven by the second starting motor 14 to stir the concrete in the stirring cavity 15 to obtain the concrete, the first ball valve 19 is opened simultaneously, so that the stirred concrete is sent into the temporary storage cavity 23, the second ball valve 25 is opened, so that the concrete is sprayed into the concrete paving cavity 32 through the concrete sprayer 26, the third starting motor 56 is driven to rotate the threaded rod 29, so that the concrete spraying box 24 is driven to slide forwards, so that the concrete is paved in the concrete paving cavity 32, and after the concrete is paved on the ground on the right side, the vehicle body 11 is started to move leftwards, so that the concrete is paved on the butted surface which is not paved on the left side, and the purpose of paving the cement concrete on the ground is achieved.
The invention has the beneficial effects that: the invention realizes the purpose of spraying and paving concrete while stirring by connecting the stirring box and the concrete spraying cavity by the conveying hose, improves the concrete paving efficiency, and enables the leveling block to carry out the reciprocating motion of an elliptical track to level the concrete surface paved on the lower side by hinging the swing rod and the connecting rod which are matched, thereby improving the concrete paving quality and avoiding the condition of pothole on the road surface caused by uneven paving.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and scope of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides an automatic equipment of cement concrete road surface paves, includes the agitator tank that is located the automobile body right side, its characterized in that: the concrete spraying device is characterized in that a feeding frame capable of feeding concrete into the stirring box is fixedly arranged on the top wall of the stirring box, a feeding cavity with an upward opening is arranged in the feeding frame, a stirring cavity is arranged on the lower side of the feeding cavity, a stirring shaft is rotatably arranged in the stirring cavity, a discharging pipeline penetrates through the right wall of the stirring box, a first ball valve for controlling the concrete in the stirring cavity to flow out is arranged in the discharging pipeline, a fixed block is fixedly arranged on the right side of the vehicle body, a first cavity penetrating left and right is arranged in the fixed block, a second cavity with a rightward opening is arranged on the lower side of the first cavity, a threaded rod is rotatably arranged in the second cavity, a guide block is in threaded connection with the threaded rod, a first fixed rod is fixedly arranged on the right side of the fixed block, a material supporting frame for transversely spreading the concrete is fixedly arranged on the right side of the first fixed rod, a concrete spreading cavity is arranged in the material supporting, the fixed block right side has set firmly dead lever two, be equipped with cavity three in the dead lever two, axis of rotation one is installed to three internal rotations in cavity, sliding block has been slided in three cavities, the sliding block downside has set firmly the concrete and has spread the case, thereby concrete paves case right side and is equipped with and can detect whether smooth laser detection instrument of concrete road through laser scanning, the incasement is equipped with the cavity that paves to the concrete, the symmetry is equipped with the concrete device that paves that can be with the concrete face flattening behind the spreading around in the cavity, the rotation of concrete device symmetry is installed around including the power shaft one in the cavity, be located the concrete paves incasement with motor one, the fixed mounting of power shaft power connection with pendulum rod one on the power shaft one, with pendulum rod one articulated connecting rod one, with connecting rod one downside is articulated can be with the flattening piece of concrete face flattening, The second swing rod is hinged to the left side of the first connecting rod, and the second rotating shaft is fixedly installed with the second swing rod and rotatably installed in the cavity.
2. An apparatus for automatically paving a cement concrete pavement according to claim 1, wherein: evenly distributed is equipped with the puddler that can carry out the concrete stirring on the (mixing) shaft, the (mixing) shaft upside is located power connection has motor two in the agitator tank.
3. An apparatus for automatically paving a cement concrete pavement according to claim 1, wherein: the concrete spraying box is internally provided with a temporary storage cavity, the upper side of the temporary storage cavity runs through the discharge pipeline and is connected with and stretches out the transportation hose of the first cavity, the lower side of the temporary storage cavity runs through the second ball valve capable of controlling concrete to be delivered out, and the concrete sprayer is fixedly arranged on the lower side of the second ball valve.
4. An apparatus for automatically paving a cement concrete pavement according to claim 1, wherein: the front side of the threaded rod is located inside the fixing block and is connected with a motor III in a power mode, a fixing rod III is fixedly arranged on the right side of the guide block, and the fixing rod III is fixedly connected with the concrete injection box.
5. An apparatus for automatically paving a cement concrete pavement according to claim 1, wherein: the first rotating shaft is fixedly provided with a gear meshed with the left side of the sliding block, and the rear side of the first rotating shaft is located inside the second fixing rod and is connected with a motor IV in a power mode.
6. An apparatus for automatically paving a cement concrete pavement according to claim 1, wherein: the concrete paving device comprises a power shaft II, a swing rod III, a swing rod fixing device, a swing rod III and a rotating shaft III, wherein the power shaft II is arranged symmetrically around the left side of the swing rod I, the swing rod III is arranged in the cavity, the power shaft II is in power connection with the power shaft II, the swing rod III is fixedly arranged on the power shaft II, the swing rod III is hinged between the concrete paving boxes, the swing rod III is hinged to the left side of the swing rod III, the swing rod IV is fixedly arranged and rotatably arranged in the swing rod IV, and the rotating shaft III is arranged in the cavity, and the connecting rod III is hinged.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010203252.XA CN111287049B (en) | 2020-03-21 | 2020-03-21 | Automatic cement concrete pavement's equipment paves |
| GBGB2013298.1A GB202013298D0 (en) | 2020-03-21 | 2020-08-26 | An equipment for automatically paving cement concrete pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010203252.XA CN111287049B (en) | 2020-03-21 | 2020-03-21 | Automatic cement concrete pavement's equipment paves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111287049A CN111287049A (en) | 2020-06-16 |
| CN111287049B true CN111287049B (en) | 2020-11-10 |
Family
ID=71020782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010203252.XA Active CN111287049B (en) | 2020-03-21 | 2020-03-21 | Automatic cement concrete pavement's equipment paves |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111287049B (en) |
| GB (1) | GB202013298D0 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115575611B (en) * | 2022-12-07 | 2023-03-03 | 河北中水建设工程有限公司 | Highway soil condition check out test set for highway engineering |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3118634B2 (en) * | 1996-09-26 | 2000-12-18 | 東洋紡績株式会社 | Bridge surface waterproofing method for road bridges |
| JP4321734B2 (en) * | 2000-05-30 | 2009-08-26 | 福田道路株式会社 | Road paving equipment |
| US8888403B2 (en) * | 2011-05-06 | 2014-11-18 | Dwayne L. Atherton | Combination gravel spreader/paver geo-textile fabric installer apparatus |
| CN207244399U (en) * | 2017-07-20 | 2018-04-17 | 胡富平 | A kind of bridge highway pavement tethered sliding formula concrete speading device |
| CN107938478B (en) * | 2017-12-01 | 2019-11-05 | 倡创(上海)咨询管理事务所 | A kind of municipal pavement construction concrete injection device of architectural engineering |
| CN109183575B (en) * | 2018-11-07 | 2021-04-30 | 中建二局第二建筑工程有限公司 | Asphalt paving device for building construction |
-
2020
- 2020-03-21 CN CN202010203252.XA patent/CN111287049B/en active Active
- 2020-08-26 GB GBGB2013298.1A patent/GB202013298D0/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| GB202013298D0 (en) | 2020-10-07 |
| CN111287049A (en) | 2020-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5314100A (en) | Grout delivery system | |
| CN111287049B (en) | Automatic cement concrete pavement's equipment paves | |
| CN213947008U (en) | Small-size concrete mixing device that civil engineering used | |
| CN209555744U (en) | A kind of construction of the highway line-marking vehicle facilitating control | |
| CN201756675U (en) | Discharge trough rotation control system and concrete mixer truck with same | |
| CN217046939U (en) | Rotation angle-adjustable concrete pouring device for building | |
| CN211711913U (en) | Road bridge construction charging equipment | |
| CN111441223B (en) | Extrusion leveling device during road construction | |
| CN210341587U (en) | Multifunctional asphalt pavement maintenance vehicle | |
| CN109016130B (en) | Agitating unit convenient to vehicle-mounted | |
| CN208576047U (en) | Combined concrete discharging device | |
| KR200427770Y1 (en) | A stored goods exhaust apparatus for snow removal of sand sprinkler | |
| CN219862325U (en) | Municipal road marking device | |
| CN219768692U (en) | Concrete pouring machine | |
| CN217149841U (en) | Road and bridge pothole filling and repairing device | |
| CN114808639B (en) | Road surface leveling device for highway engineering construction | |
| CN221089485U (en) | Highway engineering construction agitating unit | |
| CN218540336U (en) | Road surface prosthetic devices is used in municipal works construction | |
| CN220665922U (en) | Road and bridge crack reinforced structure | |
| CN218147650U (en) | Bituminous pavement roller | |
| CN219490637U (en) | Road crack pouring device for road construction with controllable discharging speed | |
| CN218466435U (en) | Asphalt laying equipment | |
| CN219908509U (en) | Pit filling device for highway maintenance | |
| CN212656096U (en) | Pavement repairing device for cement road | |
| CN219218630U (en) | Crack repairing and flattening device for highway construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |