CN112695588A - Road surface cement tiling device is used in road and bridge construction - Google Patents
Road surface cement tiling device is used in road and bridge construction Download PDFInfo
- Publication number
- CN112695588A CN112695588A CN202011577687.7A CN202011577687A CN112695588A CN 112695588 A CN112695588 A CN 112695588A CN 202011577687 A CN202011577687 A CN 202011577687A CN 112695588 A CN112695588 A CN 112695588A
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- CN
- China
- Prior art keywords
- roller
- storage box
- tooth
- hole
- screw hole
- 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.)
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Classifications
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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
- 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
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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
- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention discloses a pavement cement paving device for road and bridge construction, which comprises a storage box body, wherein the bottom end of the storage box body is provided with a rolling assembly, a flattening assembly and a smearing assembly; traveling assemblies are arranged on two sides of the bottom end of the material storage box body; a discharge hole is formed in the front end of the storage box body, and a material blocking assembly is arranged above the outer side of the discharge hole; the material blocking assembly comprises a rotating motor, a bearing seat and a sliding block; the front end of the storage box body is provided with a rectangular groove, the rotating motor and the bearing seat are fixed in the rectangular groove, the rotating motor is connected with one end of the screw rod through a coupler, and the other end of the screw rod is rotatably connected with the bearing seat; the sliding block is provided with a through hole, the sliding block is sleeved on the outer side of the screw rod through the through hole, and the inner side wall of the through hole is in threaded connection with the outer side wall of the screw rod; the front end of the sliding block is fixedly connected with a fixing plate, a first screw hole is formed in the fixing plate, a second screw hole and a third screw hole are formed in the movable plate, and the third screw hole is located above the second screw hole.
Description
Technical Field
The invention relates to the field of road and bridge construction, in particular to a pavement cement paving device for road and bridge construction.
Background
The existing highway pavement is generally a cement pavement or an asphalt pavement, the cement pavement is a pavement which takes cement as a main material to make a surface layer, is also called a rigid pavement and is commonly called a white pavement, and the cement pavement is a high-grade pavement. It needs the cement tiling device to carry out the floating operation to the cement surface of laying to reach the roughness that people needed.
Cement road surface tiling device among the prior art, on avoiding materials such as cement to fall to the well lid when meetting well lid on the road surface, sewer mouth waiting position, need pause the construction, then carry out the tiling operation to the highway section that contains well lid, sewer mouth through the manual work, its operation is got up and is wasted time and energy, has seriously reduced the tiling efficiency on cement road surface, has brought certain puzzlement for road surface tiling work.
Disclosure of Invention
The invention aims to solve the problems and provides a road surface cement paving device for road and bridge construction, which is simple in structure and convenient to use.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a pavement cement paving device for road and bridge construction comprises a storage box body, wherein the bottom end of the storage box body is sequentially provided with a rolling assembly, a flattening assembly and a smearing assembly from front to back; traveling assemblies are arranged on two sides of the bottom end of the material storage box body; a discharge hole is formed in the front end of the storage box body, and a material blocking assembly is arranged above the outer side of the discharge hole; the material blocking assembly comprises a rotating motor, a screw rod, a bearing seat, a sliding block, a fixed plate and a movable plate; the front end of the material storage box body is provided with a rectangular groove, the rectangular groove is positioned above the discharging hole, the rotating motor and the bearing seat are positioned in the rectangular groove, the rotating motor and the bearing seat are respectively and fixedly connected to two ends of the rectangular groove in the length direction, the rotating motor is connected with one end of the screw rod through a coupler, and the other end of the screw rod is rotatably connected with the bearing seat; the sliding block is provided with a through hole, the sliding block is sleeved on the outer side of the screw rod through the through hole, and the inner side wall of the through hole is in threaded connection with the outer side wall of the screw rod; the front end of the sliding block is fixedly connected with a fixed plate, a first screw hole is formed in the fixed plate, a second screw hole and a third screw hole are formed in the movable plate, and the third screw hole is located above the second screw hole; the second screw hole or the third screw hole is connected with the first screw hole through a fixing bolt; when the second screw hole is connected with the first screw hole through the fixing bolt, the movable plate is positioned above the discharging hole; when the third screw hole is connected with the first screw hole through the fixing bolt, the movable plate is positioned at the front end of the discharging hole.
Further, the rolling assembly comprises a roller and a roller, the roller is hollow cylindrical, first fixing shafts are arranged at two axial ends of the roller and are rotatably connected with first connecting lugs arranged on two sides of the bottom end of the material storage box body through the first fixing shafts, the roller is fixedly connected in the roller and the roller is consistent with the roller in the axis direction, a plurality of spike-tooth through holes are formed in the roller, and a plurality of spike-tooth mechanisms and corresponding spike-tooth mechanisms are arranged between the roller and the roller.
Furthermore, the spike tooth mechanism comprises a tooth column, a tooth sleeve, a first spring and a first limiting rod, wherein the tooth sleeve is arranged between the inner side wall of the roller and the outer side wall of the roller, one end of the tooth sleeve is fixedly connected with the outer side wall of the roller, the other end of the tooth sleeve is sleeved outside one end of the tooth column, the tooth column can slide relative to the tooth sleeve, one end of the tooth column, far away from the tooth sleeve, is sharp, and the end head penetrates out of the spike tooth through hole; the outer side of the middle part of the toothed column is fixedly connected with a first limiting rod, and the first limiting rod is positioned between the inner side wall of the roller and the end head of the toothed sleeve; and a first spring is arranged in the gear sleeve, one end of the first spring is contacted with the outer side wall of the roller, and the other end of the first spring is contacted with one end socket of the gear sleeve sleeved with the gear column.
Further, the flattening assembly comprises a pressing plate, a vibrator and a connecting rod, the front end of the pressing plate is in an upward inclined shape, the front end of the pressing plate is in contact with the bottom end of the storage box body, the rear end of the pressing plate is in a horizontal shape, the top end of the pressing plate is fixedly connected with the bottom end of the storage box body through the connecting rod, and the upper end face of the rear end of the pressing plate is fixedly connected with the vibrator.
Further, paint the subassembly including paining the running roller, paint the both ends of running roller and be provided with the second fixed axle and pass through the second fixed axle and set up the second engaging lug rotatable coupling in storage box bottom both sides, the second fixed axle is connected with the power unit transmission that sets up in storage box bottom.
Furthermore, power unit includes power motor, and power motor fixed connection is in storage box body bottom, and power motor's output shaft and first fixed axle, second fixed axle transmission are connected.
Further, the walking subassembly includes walking track, mounting panel, walking wheel, and mounting panel fixed connection is in the both sides of storage box respectively, and the mounting panel passes through third fixed axle and walking wheel rotatable coupling, and the bottom scarf joint of walking wheel just walks the wheel and can walk in the track removal of walking.
Further, the inside bottom of storage box is the slope form setting of low back height in front.
Compared with the prior art, the invention has the advantages and positive effects that:
according to the invention, through the design that the material blocking assembly is arranged at the front end of the material storage box body, when the material storage box body meets the positions of a well cover, a sewer opening and the like, the screw rod is driven to rotate through the rotating motor, so that the sliding block moves to the position above the well cover, then the third screw hole in the movable plate is connected with the first screw hole in the fixed plate through the fixed bolt, at the moment, the movable plate shields the discharge hole part above the well cover or the sewer opening, and other positions of the discharge hole are not influenced; its easy operation, convenient and fast need not carry out artifical construction again when meetting well lid, sewer mouth, have effectively improved the tiling efficiency on cement road surface, have brought the facility for the road surface tiling work.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a top view structural diagram of the stock stop assembly;
FIG. 5 is a schematic structural diagram of a rolling assembly;
FIG. 6 is an enlarged view of a portion of the structure of FIG. 5;
fig. 7 is a schematic view of the construction of the dauber assembly.
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 from the embodiments of the present invention by a person skilled in the art without any creative effort, should be included in the protection scope of the present invention.
As shown in fig. 1 to 7, the embodiment discloses a pavement cement paving device for road and bridge construction, which comprises a storage box body 1, wherein a rolling assembly 7, a flattening assembly and a smearing assembly are sequentially arranged at the bottom end of the storage box body 1 from front to back; two sides of the bottom end of the material storage box body 1 are provided with walking components; the bottom end inside the material storage box body 1 is arranged in an inclined shape with a low front part and a high back part; a discharge hole 101 is formed in the front end of the storage box body 1, and a material blocking assembly is arranged above the outer side of the discharge hole 101;
the material blocking assembly comprises a rotating motor 16, a screw rod 18, a bearing seat 19, a sliding block 17, a fixed plate 20 and a movable plate 2; the front end of the storage box body 1 is provided with a rectangular groove 102, the rectangular groove 102 is positioned above the discharge hole 101, the rotating motor 16 and the bearing seat 19 are both positioned in the rectangular groove 102, the rotating motor 16 and the bearing seat 19 are respectively and fixedly connected to the two ends of the rectangular groove 102 in the length direction, the rotating motor 16 is connected with one end of the screw rod 18 through a coupler, and the other end of the screw rod 18 is rotatably connected with the bearing seat 19; the sliding block 17 is provided with a through hole, the sliding block 17 is sleeved outside the screw rod 18 through the through hole, and the inner side wall of the through hole is in threaded connection with the outer side wall of the screw rod 18; the front end of the slide block 17 is fixedly connected with a fixed plate 20, a first screw hole 2001 is arranged on the fixed plate 20, a second screw hole 202 and a third screw hole 201 are arranged on the movable plate 2, and the third screw hole 201 is positioned above the second screw hole 202; the second screw hole 202 or the third screw hole 201 is connected with the first screw hole 2001 through a fixing bolt 21; when the second screw hole 202 and the first screw hole 2001 are connected by the fixing bolt 21, the movable plate 2 is located above the discharge port 101; when the third screw hole 201 and the first screw hole 2001 are connected by the fixing bolt 21, the movable plate 2 is located at the front end of the discharge port 101.
According to the invention, through the design that the material blocking assembly is arranged at the front end of the material storage box body, when the material storage box body meets the positions of a well cover, a sewer opening and the like, the screw rod is driven to rotate through the rotating motor, so that the sliding block moves to the position above the well cover, then the third screw hole in the movable plate is connected with the first screw hole in the fixed plate through the fixed bolt, at the moment, the movable plate shields the discharge hole part above the well cover or the sewer opening, and other positions of the discharge hole are not influenced; its easy operation, convenient and fast need not carry out artifical construction again when meetting well lid, sewer mouth, have effectively improved the tiling efficiency on cement road surface, have brought the facility for the road surface tiling work.
The rolling component 7 comprises a roller 702 and a roller 701, the roller 701 is hollow cylindrical, first fixing shafts 703 are arranged at two axial ends of the roller 701 and are rotatably connected with first connecting lugs arranged on two sides of the bottom end of the material storage box body 1 through the first fixing shafts 703, the roller 702 is fixedly connected in the roller 703, the roller 702 is consistent with the roller 701 in the axis direction, a plurality of spike-tooth through holes 7011 are formed in the roller 701, and a plurality of spike-tooth mechanisms and corresponding spike-tooth through holes 7011 are arranged between the roller 701 and the roller 702.
The spike tooth mechanism comprises a tooth column 12, a tooth sleeve 13, a first spring 14 and a first limiting rod 15, wherein the tooth sleeve 13 is arranged between the inner side wall of the roller 701 and the outer side wall of the roller 702, one end of the tooth sleeve 13 is fixedly connected with the outer side wall of the roller 702, the other end of the tooth sleeve 13 is sleeved on the outer side of one end of the tooth column 12, the tooth column 12 can slide relative to the tooth sleeve 13, one end of the tooth column 12, far away from the tooth sleeve 13, is sharp, and the end of the tooth column penetrates out of a spike tooth through hole 7011; the outer side of the middle part of the toothed column 12 is fixedly connected with a first limiting rod 15, and the first limiting rod 15 is positioned between the inner side wall of the roller 701 and the end head of the toothed sleeve 13; a first spring 14 is arranged in the gear sleeve 13, one end of the first spring 14 is in contact with the outer side wall of the roller 702, and the other end of the first spring 14 is in contact with one end of the gear column 12 sleeved in the gear sleeve 13.
When the pits exist on the road surface, when cement is laid, the cement directly covers the pits, so that the pits are not filled with the cement easily, and a hollow phenomenon occurs; by rolling of the rolling component, one end of the toothed column, which penetrates out of the roller, can be inserted into cement paved on the road surface, so that the phenomena of hollowness and the like in the paved cement are avoided, and the service life of the cement road surface is prolonged; meanwhile, due to the design that the first springs are arranged in the tooth columns and the tooth sleeves, when one tooth column touches the bumps on the road surface such as stone and the like, the tooth column can be properly contracted, and other tooth columns can continue to perform cement insertion operation without any influence, so that the using effect of the cement mortar filling machine is effectively improved.
The flattening component comprises a pressing plate 9, a vibrator 10 and a connecting rod 8, the front end of the pressing plate 9 is in an upward inclined shape, the front end of the pressing plate 9 is in contact with the bottom end of the storage box body 1, the rear end of the pressing plate 9 is in a horizontal shape, the top end of the pressing plate 9 is fixedly connected with the bottom end of the storage box body 1 through the connecting rod 8, and the upper end face of the rear end of the pressing plate 9 is fixedly connected with the vibrator 10.
The pressing plate can push cement laid on a road surface, so that the laid cement can keep a certain height, the inclined design at the front end of the pressing plate can avoid the condition that cement materials pass through the pressing plate from the upper end of the pressing plate, and meanwhile, the height limiting operation of the cement can be quickly and efficiently completed by combining the design of the vibrator, so that the using effect of the invention is further improved.
Scribble the subassembly including scribbling running roller 11, the both ends of scribbling running roller 11 are provided with second fixed axle 22 and through second fixed axle 22 with set up the second engaging lug 103 rotatable coupling in 1 bottom both sides of storage box, second fixed axle 22 is connected with the power unit transmission that sets up in 1 bottom of storage box.
The power mechanism comprises a power motor 23, the power motor 23 is fixedly connected to the bottom end of the material storage box body 1, and an output shaft of the power motor 23 is in transmission connection with the first fixing shaft 703 and the second fixing shaft 22.
The bottom end face of the smearing roller is consistent with the bottom end face of the pressing plate in height, and the smearing roller rotates under the action of the power motor, so that the cement pavement with the limited height is smeared by the bottom end face of the smearing roller, and the flatness of the cement pavement is improved.
The walking subassembly includes walking track 6, mounting panel 3, walking wheel 5, and mounting panel 3 fixed connection is in the both sides of storage box 1 respectively, and mounting panel 3 passes through third fixed axle 4 and 5 rotatable coupling of walking wheel, and 5 bottom scarf joints of walking wheel just walk wheel 5 and can walk in track 6 and remove in the walking track 6. The design of the traveling wheels for traveling in the traveling tracks can ensure that the traveling lines are a straight line, avoid the conditions of pavement deviation and the like in the cement laying process, and further improve the use effect of the invention.
Claims (8)
1. The utility model provides a road surface cement tiling device is used in road and bridge construction, includes the storage box body, its characterized in that: the bottom end of the storage box body is sequentially provided with a rolling assembly, a flattening assembly and a smearing assembly from front to back; traveling assemblies are arranged on two sides of the bottom end of the material storage box body; a discharge hole is formed in the front end of the storage box body, and a material blocking assembly is arranged above the outer side of the discharge hole; the material blocking assembly comprises a rotating motor, a screw rod, a bearing seat, a sliding block, a fixed plate and a movable plate; the front end of the material storage box body is provided with a rectangular groove, the rectangular groove is positioned above the discharging hole, the rotating motor and the bearing seat are positioned in the rectangular groove, the rotating motor and the bearing seat are respectively and fixedly connected to two ends of the rectangular groove in the length direction, the rotating motor is connected with one end of the screw rod through a coupler, and the other end of the screw rod is rotatably connected with the bearing seat; the sliding block is provided with a through hole, the sliding block is sleeved on the outer side of the screw rod through the through hole, and the inner side wall of the through hole is in threaded connection with the outer side wall of the screw rod; the front end of the sliding block is fixedly connected with a fixed plate, a first screw hole is formed in the fixed plate, a second screw hole and a third screw hole are formed in the movable plate, and the third screw hole is located above the second screw hole; the second screw hole or the third screw hole is connected with the first screw hole through a fixing bolt; when the second screw hole is connected with the first screw hole through the fixing bolt, the movable plate is positioned above the discharging hole; when the third screw hole is connected with the first screw hole through the fixing bolt, the movable plate is positioned at the front end of the discharging hole.
2. A road surface cement tiling device for road and bridge construction according to claim 1, characterized in that: the rolling assembly comprises a roller and a roller, the roller is hollow cylindrical, first fixing shafts are arranged at two axial ends of the roller and are rotatably connected with first connecting lugs arranged on two sides of the bottom end of the storage box body through the first fixing shafts, the roller is fixedly connected in the roller and the roller is consistent with the roller in the axis direction, a plurality of spike-tooth through holes are formed in the roller, and a plurality of spike-tooth mechanisms and spike-tooth mechanisms are arranged between the roller and correspond to the spike-tooth through holes.
3. A road surface cement tiling device for road and bridge construction according to claim 2, characterized in that: the spike tooth mechanism comprises a tooth column, a tooth sleeve, a first spring and a first limiting rod, the tooth sleeve is arranged between the inner side wall of the roller and the outer side wall of the roller, one end of the tooth sleeve is fixedly connected with the outer side wall of the roller, the other end of the tooth sleeve is sleeved outside one end of the tooth column, the tooth column can slide relative to the tooth sleeve, one end of the tooth column, far away from the tooth sleeve, is sharp, and the end head penetrates out of the spike tooth through hole; the outer side of the middle part of the toothed column is fixedly connected with a first limiting rod, and the first limiting rod is positioned between the inner side wall of the roller and the end head of the toothed sleeve; and a first spring is arranged in the gear sleeve, one end of the first spring is contacted with the outer side wall of the roller, and the other end of the first spring is contacted with one end socket of the gear sleeve sleeved with the gear column.
4. A road and bridge surface cement tiling device for construction of road and bridge as claimed in claim 3, characterized in that: the flattening assembly comprises a pressing plate, a vibrator and a connecting rod, the front end of the pressing plate is in an upward inclined shape, the front end of the pressing plate is in contact with the bottom end of the storage box body, the rear end of the pressing plate is in a horizontal shape, the top end of the pressing plate is fixedly connected with the bottom end of the storage box body through the connecting rod, and the upper end face of the rear end of the pressing plate is fixedly connected with the vibrator.
5. A road surface cement tiling device for road and bridge construction according to claim 4, characterized in that: scribble the subassembly including scribbling the running roller, the both ends of scribbling the running roller are provided with the second fixed axle and pass through the second fixed axle and set up the second engaging lug rotatable coupling in storage box bottom both sides, the second fixed axle is connected with the power unit transmission that sets up in storage box bottom.
6. A road surface cement tiling device for road and bridge construction according to claim 5, characterized in that: the power mechanism comprises a power motor which is fixedly connected to the bottom end of the material storage box body, and an output shaft of the power motor is in transmission connection with the first fixed shaft and the second fixed shaft.
7. A road surface cement tiling device for road and bridge construction according to claim 6, characterized in that: the walking subassembly includes walking track, mounting panel, walking wheel, and mounting panel fixed connection is in the both sides of storage box respectively, and the mounting panel passes through third fixed axle and walking wheel rotatable coupling, and the bottom scarf joint of walking is just walked the wheel and can be walked the track and remove.
8. A road and bridge surface cement paving device for construction as set forth in claim 7, wherein: the inside bottom of storage box is the slope form setting that low back is high in the front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577687.7A CN112695588A (en) | 2020-12-28 | 2020-12-28 | Road surface cement tiling device is used in road and bridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577687.7A CN112695588A (en) | 2020-12-28 | 2020-12-28 | Road surface cement tiling device is used in road and bridge construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112695588A true CN112695588A (en) | 2021-04-23 |
Family
ID=75512322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011577687.7A Withdrawn CN112695588A (en) | 2020-12-28 | 2020-12-28 | Road surface cement tiling device is used in road and bridge construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112695588A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116397503A (en) * | 2023-04-23 | 2023-07-07 | 中铁隧道局集团有限公司 | Be used for prosthetic automatic device that levels of municipal works road surface |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020215A (en) * | 1999-07-06 | 2001-01-23 | Sumitomo Constr Mach Co Ltd | Screed device for road paving vehicle |
| CN107513927A (en) * | 2017-10-11 | 2017-12-26 | 钟晓芳 | A kind of concrete paving and leveling device based on road construction |
| CN209066226U (en) * | 2018-11-12 | 2019-07-05 | 刘昌明 | Novel road engineering road surface evener |
| KR102095148B1 (en) * | 2019-03-08 | 2020-03-30 | 권이금 | Concrete pavement system of a road |
| CN111535127A (en) * | 2020-04-30 | 2020-08-14 | 李天昊 | Asphalt laying equipment for constructional engineering |
-
2020
- 2020-12-28 CN CN202011577687.7A patent/CN112695588A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020215A (en) * | 1999-07-06 | 2001-01-23 | Sumitomo Constr Mach Co Ltd | Screed device for road paving vehicle |
| CN107513927A (en) * | 2017-10-11 | 2017-12-26 | 钟晓芳 | A kind of concrete paving and leveling device based on road construction |
| CN209066226U (en) * | 2018-11-12 | 2019-07-05 | 刘昌明 | Novel road engineering road surface evener |
| KR102095148B1 (en) * | 2019-03-08 | 2020-03-30 | 권이금 | Concrete pavement system of a road |
| CN111535127A (en) * | 2020-04-30 | 2020-08-14 | 李天昊 | Asphalt laying equipment for constructional engineering |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116397503A (en) * | 2023-04-23 | 2023-07-07 | 中铁隧道局集团有限公司 | Be used for prosthetic automatic device that levels of municipal works road surface |
| CN116397503B (en) * | 2023-04-23 | 2023-10-24 | 中铁隧道局集团有限公司 | Be used for prosthetic automatic device that levels of municipal works road surface |
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Application publication date: 20210423 |
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| WW01 | Invention patent application withdrawn after publication |