CN113355999A - Road and bridge crack flattening prosthetic devices that building engineering used - Google Patents

Road and bridge crack flattening prosthetic devices that building engineering used Download PDF

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Publication number
CN113355999A
CN113355999A CN202110527048.8A CN202110527048A CN113355999A CN 113355999 A CN113355999 A CN 113355999A CN 202110527048 A CN202110527048 A CN 202110527048A CN 113355999 A CN113355999 A CN 113355999A
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CN
China
Prior art keywords
rod
road
fixed mounting
base
cylinder
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.)
Pending
Application number
CN202110527048.8A
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Chinese (zh)
Inventor
单正飞
张小红
黄江艳
单其利
单腊
贺智鹏
袁国萍
陆辉
许和军
宋海祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Zhengfei Construction Technology Co ltd
Original Assignee
Anhui Zhengfei Construction Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Zhengfei Construction Technology Co ltd filed Critical Anhui Zhengfei Construction Technology Co ltd
Priority to CN202110527048.8A priority Critical patent/CN113355999A/en
Publication of CN113355999A publication Critical patent/CN113355999A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/09Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
    • E01C23/096Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating and filling
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D22/00Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges

Abstract

The invention discloses a road and bridge crack leveling and repairing device for constructional engineering, which comprises a base, a vertical rod and a push handle, wherein the vertical rod is fixedly installed on the left side of the base, the push handle is fixedly installed on the left side of the top of the vertical rod, a display screen is arranged on the push handle, a first threaded rod is arranged in the vertical rod, a hand wheel is fixedly installed at the top of the first threaded rod, a water pump is arranged in a water tank, a second air cylinder is arranged below the left side of the base, a second telescopic rod is arranged in the second air cylinder, a grinding roller is fixedly installed at the bottom of the second telescopic rod, a first fixing rod and a second fixing rod are fixedly installed on two sides of the second telescopic rod, and a paving plate is fixedly installed below the right side of the second fixing rod. This road and bridge crack flattening prosthetic devices that building engineering used, labour saving and time saving more has reduced staff's work load to very big time of having shortened the road surface restoration.

Description

Road and bridge crack flattening prosthetic devices that building engineering used
Technical Field
The invention relates to the technical field of road crack repair, in particular to a road and bridge crack leveling and repairing device for constructional engineering.
Background
The road flatness has great influence on the running of vehicles, the road can cause cracks after long-term vehicle rolling, wind and sun drying and rain washing, if the road is not repaired in time, the cracks can be enlarged day by day, and the load capacity of the road can be influenced when the affected vehicle runs normally.
However, the existing road repairing device does not clean cracks, the repairing quality needs to be improved, the compacting force of repaired crack asphalt is insufficient, and the situation that the cracks are uneven is easily caused.
Disclosure of Invention
The invention aims to provide a road and bridge crack leveling and repairing device for constructional engineering, which aims to solve the problems that the existing road repairing device provided in the background art does not clean cracks, the repairing quality needs to be improved, the compacting force of repaired crack asphalt is insufficient, and the crack is easily uneven.
In order to achieve the purpose, the invention provides the following technical scheme: a road and bridge crack leveling and repairing device for constructional engineering comprises a base, a vertical rod and a push handle, wherein the vertical rod is fixedly installed on the left side of the base, the push handle is fixedly installed on the left side of the top of the vertical rod, a display screen is arranged on the push handle, a first threaded rod is arranged in the vertical rod, a hand wheel is fixedly installed on the top of the first threaded rod, a sliding block is connected onto the first threaded rod in a threaded manner, a first roller is fixedly installed on the left side of the sliding block through a first inclined rod, a water tank, an asphalt containing tank and a fan are fixedly installed above the base from left to right, a second groove is formed in the lower portion of the inner portion of the base, a second roller is fixedly installed on the right side of the base through a second inclined rod, two groups of second threaded rods are arranged in the second groove, a nut seat is arranged on the second threaded rod, a water pump is arranged in the water tank, and a nozzle is fixedly installed at the output end of the water pump through the nut seat through a guide pipe, the output of fan runs through nut seat fixed mounting through the tuber pipe and has the shower nozzle, pitch holds incasement portion and is provided with rabbling mechanism, and pitch holds case discharge gate fixedly connected with conveying pipeline, base left side below is provided with the second cylinder, and the inside second telescopic link that is provided with of second cylinder, second telescopic link bottom fixed mounting has the roller of rolling, and second telescopic link both sides fixed mounting has first dead lever and second dead lever, second dead lever right side below fixed mounting has the paving board.
Preferably, the feed delivery pipe, the air pipe and the guide pipe are fixedly connected with the nut seat, the feed delivery pipe is positioned on the left side of the air pipe, and the guide pipe is positioned on the right side of the air pipe.
Preferably, the bottom of the nut seat is fixedly provided with a first air cylinder, a telescopic rod is arranged in the first air cylinder, a mounting frame is fixedly arranged at one end, located outside the first air cylinder, of the telescopic rod, a first rotating rod is arranged in the mounting frame, the upper portion of the first rotating rod is provided with a cutting disc, and one end of the first rotating rod is fixedly connected with the output end of the driving motor.
Preferably, all be provided with on the second threaded rod from the driving wheel, second threaded rod one side top is provided with the transfer line, and is provided with two sets of action wheels on the transfer line, and the action wheel is connected with the meshing from the driving wheel, and transfer line one end is through shaft coupling and positive and negative motor output fixed connection.
Preferably, base left side below is provided with the camera, and the camera passes through wire and display screen electric connection, and the camera is located second cylinder right side.
Preferably, just first dead lever left side below fixed mounting has the connecting rod, and the connecting rod bottom is equipped with U type frame, and the inside relative one side of U type frame is provided with the arc wall, and U type frame is inside to rotate through the second dwang to be connected with the shovel, and the shovel is located the inside one end both sides of U type frame and is provided with the slide bar, slide bar and arc wall sliding connection, is provided with the spring between slide bar and the arc wall.
Compared with the prior art, the invention has the beneficial effects that: the road and bridge crack leveling and repairing device for the building engineering is more time-saving and labor-saving, reduces the workload of workers and greatly shortens the pavement repairing time;
1. the asphalt storage box repairs the road surface gap through the delivery pipe, workers can conveniently monitor the crack position under the repairing device through the camera, and the nut seat is driven to move through the driving motor, so that the cutting disc, the nozzle, the air jet head and the delivery pipe are adjusted to accurately treat the crack, and the workload of the workers is reduced;
2. the asphalt compaction device is provided with a first roller, a first threaded rod and a rolling roller, the rolling roller is adjusted to move up and down through a second cylinder to compact asphalt, when the compaction force is insufficient, a hand wheel drives the first threaded rod to rotate, the first threaded rod drives a sliding block to move up and down, so that the position of the first roller is adjusted, a pushing handle is pressed downwards, and the compaction force of the rolling roller is increased by using the weight of water and asphalt in a water tank;
3. be equipped with stand board and shovel, can push away accumulational pitch through stand board, push away the handle through second cylinder and pushing down, make the shovel to the pitch that overflows, simultaneously under the effect of spring, make the better laminating road surface of shovel, the dynamics of shoveling is high, realizes repairing road surface fissured high efficiency, very big shortening road surface prosthetic time.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic top view of a base according to the present invention;
FIG. 3 is a schematic view of the connection between the cutting plate and the base according to the present invention;
FIG. 4 is a schematic side view of the connection between the U-shaped frame and the shovel of the present invention;
FIG. 5 is a front view of the connection between the U-shaped frame and the shovel.
In the figure: 1. a base; 2. a fan; 3. an asphalt containing tank; 4. a water tank; 5. a vertical rod; 6. a first threaded rod; 7. a push handle; 8. a display screen; 9. a slider; 10. a first roller; 11. a second cylinder; 12. a first fixing lever; 13. a connecting rod; 14. a shovel; 15. rolling a roller; 16. spreading a board; 17. a second fixing bar; 18. a camera; 19. a delivery pipe; 20. a blast head; 21. a nozzle; 22. cutting the disc; 23. a first cylinder; 24. a second roller; 25. a second threaded rod; 26. a driving wheel; 27. a transmission rod; 28. a driven wheel; 29. a nut seat; 30. a U-shaped frame; 31. a slide bar; 32. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a road and bridge crack leveling and repairing device for constructional engineering comprises a base 1, a vertical rod 5 and a push handle 7, wherein the vertical rod 5 is fixedly installed on the left side of the base 1, the push handle 7 is fixedly installed on the left side of the top of the vertical rod 5, a display screen 8 is arranged on the push handle 7, a first threaded rod 6 is arranged in the vertical rod 5, a hand wheel is fixedly installed on the top of the first threaded rod 6, a sliding block 9 is connected onto the first threaded rod 6 in a threaded manner, a first roller 10 is fixedly installed on the left side of the sliding block 9 through a first inclined rod, a water tank 4, an asphalt containing tank 3 and a fan 2 are fixedly installed above the base 1 from left to right in sequence, a second groove is formed in the lower portion of the inner portion of the base 1, a second roller 24 is fixedly installed on the right side of the base 1 through a second inclined rod, two groups of second threaded rods 25 are arranged in the second groove, a nut seat 29 is arranged on the second threaded rod 25, a water pump is arranged in the water tank 4, and the water pump output end runs through nut seat 29 fixed mounting through the pipe and has nozzle 21, the output of fan 2 runs through nut seat 29 fixed mounting through the tuber pipe and has shower nozzle 20, the inside rabbling mechanism that is provided with of pitch holding box 3, and pitch holding box 3 discharge gate fixedly connected with conveying pipeline 19, 1 left side below of base is provided with second cylinder 11, and the inside second telescopic link that is provided with of second cylinder 11, second telescopic link bottom fixed mounting has grinding roller 15, and second telescopic link both sides fixed mounting has first dead lever 12 and second dead lever 17, second dead lever 17 right side below fixed mounting has paving board 16.
As shown in the figures 1, 2 and 3, a material conveying pipe 19, an air pipe and a guide pipe are all fixedly connected with a nut seat 29, the material conveying pipe 19 is positioned on the left side of the air pipe, the guide pipe is positioned on the right side of the air pipe, a first air cylinder 23 is fixedly installed at the bottom of the nut seat 29, a telescopic rod is arranged in the first air cylinder 23, a mounting frame is fixedly installed at one end, positioned outside the first air cylinder 23, of the telescopic rod, a first rotating rod is arranged in the mounting frame, a cutting disc 22 is arranged at the upper part of the first rotating rod, one end of the first rotating rod is fixedly connected with the output end of a driving motor, driven wheels 28 are arranged on second threaded rods 25, a transmission rod 27 is arranged above one side of the second threaded rods 25, two groups of driving wheels 26 are arranged on the transmission rod 27, the driving wheels 26 are meshed with the driven wheels 28, one end of the transmission rod 27 is fixedly connected with the output end of a forward and reverse rotation motor through a coupler, a camera 18 is arranged below the left side of a base 1, camera 18 passes through wire and 8 electric connection of display screen, and camera 18 is located 11 right sides of second cylinder, drive cutting disc 22 through driving motor and rotate and be used for cutting the road surface crack, make the road surface crack neat, the crack department on road surface is sprayed from nozzle 21 to water in with water tank 4 through the water pump, clear up dust in the crack department, fan 2 bloates the high wind and sprays the crack department from spouting wind head 20, dry the processing with inside mud, guarantee the interior cleanness of crack, pitch holds case 3 and repairs the road surface crack through conveying pipeline 19, the crack position under the staff's control prosthetic devices of being convenient for through camera 18, drive nut seat 29 through driving motor and remove, thereby adjustment cutting disc 22, nozzle 21, spout wind head 20 and conveying pipeline 19 accuracy and handle the crack, staff's work load has been reduced.
As shown in fig. 1, 4 and 5, a connecting rod 13 is fixedly installed below the left side of a first fixing rod 12, a U-shaped frame 30 is installed at the bottom of the connecting rod 13, an arc-shaped groove is installed at one side opposite to the inside of the U-shaped frame 30, a shovel 14 is rotatably connected to the inside of the U-shaped frame 30 through a second rotating rod, sliding rods 31 are installed at two sides of one end of the shovel 14 located inside the U-shaped frame 30, the sliding rods 31 are slidably connected with the arc-shaped groove, a spring 32 is installed between the sliding rods 31 and the arc-shaped groove, a roller 15 is adjusted through a second air cylinder 11 to move up and down to compact asphalt, when the compaction force is insufficient, a hand wheel drives a first threaded rod 6 to rotate, the first threaded rod 6 drives a sliding block 9 to move up and down, so as to adjust the position of the first roller 10, a push handle 7 is pushed down, the compaction force of the roller 15 is increased by the weight of water and asphalt in a water tank 4, the piled asphalt can be pushed flat through a spreading plate 16, push away 7 through second cylinder 11 and pushing down, make the shovel to the pitch that spills over shovel, simultaneously under the 32 effects of spring, make the better laminating road surface of shovel, it is high to shovel the dynamics, realizes repairing road surface fissured high efficiency, very big shortening road surface prosthetic time.
The working principle is as follows: when the device for leveling and repairing the cracks of the road and the bridge for the building engineering is used, firstly, as shown in a figure 1, a figure 2, a figure 3, a figure 4 and a figure 5, a cutting disc 22 is driven to rotate by a driving motor to cut the cracks of the road surface, so that the cracks of the road surface are aligned, water in a water tank 4 is sprayed to the cracks of the road surface from a nozzle 21 through a water pump, dust in the cracks is cleaned, a fan 2 blows strong wind and is sprayed to the cracks from an air spraying head 20, the inside slurry is dried, the cleanness in the cracks is ensured, an asphalt containing tank 3 repairs the cracks of the road surface through a material conveying pipe 19, a camera 18 is convenient for workers to monitor the crack position under the repairing device, a nut seat 29 is driven to move by the driving motor, so that the cutting disc 22, the nozzle 21, the air spraying head 20 and the material conveying pipe 19 are adjusted to accurately treat the cracks, and the workload of the workers is reduced, roll 15 rollers through 11 adjustments of second cylinder and reciprocate and carry out the compaction to pitch, when the compaction dynamics was not enough, the hand wheel drives first threaded rod 6 and rotates, first threaded rod 6 drives slider 9 and reciprocates, thereby adjust the position of first gyro wheel 10, push down 7, utilize the weight of water and pitch in the water tank 4 to increase the dynamics of rolling 15 compactions, can push up accumulational pitch through the paving board 16, push up 7 through second cylinder 11 and push down, make the shovel carry out the shovel to the pitch that spills over, simultaneously under the 32 effects of spring, make the better laminating road surface of shovel, the shovel dynamics is high, realize the high-efficient to the cracked repair in road surface, very big time of having shortened the road surface restoration, this is the whole process that road bridge crack flattening prosthetic devices that building engineering used uses.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a road and bridge crack flattening prosthetic devices that building engineering used, includes base (1), montant (5) and pushes away (7), its characterized in that: the novel asphalt mixing machine is characterized in that a vertical rod (5) is fixedly mounted on the left side of the base (1), a push handle (7) is fixedly mounted on the left side of the top of the vertical rod (5), a display screen (8) is arranged on the push handle (7), a first threaded rod (6) is arranged in the vertical rod (5), a hand wheel is fixedly mounted on the top of the first threaded rod (6), a sliding block (9) is connected onto the first threaded rod (6) in a threaded manner, a first roller (10) is fixedly mounted on the left side of the sliding block (9) through a first inclined rod, a water tank (4), an asphalt containing box (3) and a fan (2) are fixedly mounted above the base (1) from left to right in sequence, a second groove is formed in the lower portion of the inner portion of the base (1), a second roller (24) is fixedly mounted on the right side of the base (1) through a second inclined rod, two groups of second threaded rods (25) are arranged in the second groove, and a nut seat (29) is arranged on the second threaded rod (25), the utility model discloses a pitch-driven water-saving asphalt mixing machine, including water tank (4), water pump, fan (2), first cylinder (11), second telescopic link bottom fixed mounting have rolling roller (15), and second telescopic link both sides fixed mounting have first dead lever (12) and second dead lever (17), second dead lever (17) right side below fixed mounting has spread board (16), and the water pump output end runs through nut seat (29) fixed mounting through the pipe has nozzle (21), the output of fan (2) runs through nut seat (29) fixed mounting through the tuber pipe has shower nozzle (20), pitch holds the inside rabbling mechanism that is provided with of case (3), and pitch holds case (3) discharge gate fixedly connected with conveying pipeline (19), base (1) left side below is provided with second cylinder (11), and second cylinder (11) inside is provided with the second telescopic link, second telescopic link bottom fixed mounting has rolling roller (15), and second telescopic link both sides fixed mounting has first dead lever (12) and second dead lever (17), second dead lever (17) right side below fixed mounting has spread board (16).
2. The device for leveling and repairing the cracks of the road and bridge for the constructional engineering as claimed in claim 1, wherein: the feed delivery pipe (19), the air pipe and the guide pipe are fixedly connected with the nut seat (29), the feed delivery pipe (19) is located on the left side of the air pipe, and the guide pipe is located on the right side of the air pipe.
3. The device for leveling and repairing the cracks of the road and bridge for the constructional engineering as claimed in claim 1, wherein: nut seat (29) bottom fixed mounting has first cylinder (23), and first cylinder (23) inside is provided with the telescopic link, and the telescopic link is located the outside one end fixed mounting of first cylinder (23) and has the mounting bracket, and the inside first pivot pole that is provided with of mounting bracket, first pivot pole upper portion is provided with cutting disc (22), first pivot pole one end and driving motor output fixed connection.
4. The device for leveling and repairing the cracks of the road and bridge for the constructional engineering as claimed in claim 1, wherein: all be provided with on second threaded rod (25) from driving wheel (28), second threaded rod (25) one side top is provided with transfer line (27), and is provided with two sets of action wheels (26) on transfer line (27), and action wheel (26) are connected with from driving wheel (28) meshing, and transfer line (27) one end is passed through shaft coupling and just reversing motor output fixed connection.
5. The device for leveling and repairing the cracks of the road and bridge for the constructional engineering as claimed in claim 1, wherein: base (1) left side below is provided with camera (18), and camera (18) pass through wire and display screen (8) electric connection, and camera (18) are located second cylinder (11) right side.
6. The device for leveling and repairing the cracks of the road and bridge for the constructional engineering as claimed in claim 1, wherein: and first dead lever (12) left side below fixed mounting has connecting rod (13), and connecting rod (13) bottom is equipped with U type frame (30), and the inside relative one side of U type frame (30) is provided with the arc wall, and U type frame (30) are inside to be connected with shovel (14) through the rotation of second dwang, and shovel (14) are located U type frame (30) inside one end both sides and are provided with slide bar (31), slide bar (31) and arc wall sliding connection, are provided with spring (32) between slide bar (31) and the arc wall.
CN202110527048.8A 2021-05-14 2021-05-14 Road and bridge crack flattening prosthetic devices that building engineering used Pending CN113355999A (en)

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Application Number Priority Date Filing Date Title
CN202110527048.8A CN113355999A (en) 2021-05-14 2021-05-14 Road and bridge crack flattening prosthetic devices that building engineering used

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110527048.8A CN113355999A (en) 2021-05-14 2021-05-14 Road and bridge crack flattening prosthetic devices that building engineering used

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Publication Number Publication Date
CN113355999A true CN113355999A (en) 2021-09-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114434583A (en) * 2022-03-07 2022-05-06 江西环境工程职业学院 Furniture is maintained and is used crack intelligence patching device
CN114737492A (en) * 2022-05-16 2022-07-12 江西科技学院 Paving equipment and construction method for bridge deck repairing material

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1916285A (en) * 2006-09-15 2007-02-21 中国人民解放军93882部队 Small type machine for clearing slurry on road surface of concrete
CN107524075A (en) * 2017-09-12 2017-12-29 蒋昌霞 A kind of road surface Lining Crack prosthetic device
CN209260587U (en) * 2018-12-05 2019-08-16 孙素娟 A kind of road and bridge crack repairing device
CN209669661U (en) * 2019-03-05 2019-11-22 重庆博焱建设工程有限公司 A kind of concrete repair tool
CN211395297U (en) * 2019-12-27 2020-09-01 杨娟 Crack filling type reinforcing device for highway bridge
CN111996888A (en) * 2020-08-06 2020-11-27 湖州前锋机械配件厂 Road surface patching device for highway machinery
CN212153145U (en) * 2019-07-26 2020-12-15 周通通 Road and bridge crack reinforcing and repairing device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1916285A (en) * 2006-09-15 2007-02-21 中国人民解放军93882部队 Small type machine for clearing slurry on road surface of concrete
CN107524075A (en) * 2017-09-12 2017-12-29 蒋昌霞 A kind of road surface Lining Crack prosthetic device
CN209260587U (en) * 2018-12-05 2019-08-16 孙素娟 A kind of road and bridge crack repairing device
CN209669661U (en) * 2019-03-05 2019-11-22 重庆博焱建设工程有限公司 A kind of concrete repair tool
CN212153145U (en) * 2019-07-26 2020-12-15 周通通 Road and bridge crack reinforcing and repairing device
CN211395297U (en) * 2019-12-27 2020-09-01 杨娟 Crack filling type reinforcing device for highway bridge
CN111996888A (en) * 2020-08-06 2020-11-27 湖州前锋机械配件厂 Road surface patching device for highway machinery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114434583A (en) * 2022-03-07 2022-05-06 江西环境工程职业学院 Furniture is maintained and is used crack intelligence patching device
CN114737492A (en) * 2022-05-16 2022-07-12 江西科技学院 Paving equipment and construction method for bridge deck repairing material
CN114737492B (en) * 2022-05-16 2024-03-19 江西科技学院 Paving equipment for bridge deck repairing material and construction method

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Application publication date: 20210907

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