CN211036626U - Flush coater is used in road conditions construction - Google Patents
Flush coater is used in road conditions construction Download PDFInfo
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- CN211036626U CN211036626U CN201921557348.5U CN201921557348U CN211036626U CN 211036626 U CN211036626 U CN 211036626U CN 201921557348 U CN201921557348 U CN 201921557348U CN 211036626 U CN211036626 U CN 211036626U
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Abstract
The utility model discloses a flush coater is used in road conditions construction mainly includes the spraying frame, and the dolly on spraying frame upper portion, dolly walking motor, shear motor, fan, fibre shearing mechanism and the spray gun of cage lower extreme on the dolly of installing at walking wheel, frame walking motor, electric putter of track, rack and lower part on its upper portion. Wherein, a frame walking motor and an electric push rod are adopted to realize the movement and steering action of the whole spraying frame; the trolley is transversely moved relative to the spraying rack by adopting a trolley walking motor, gear and rack meshing transmission and guide sliding of a sliding block and a track; the shearing motor is adopted to drive the fiber shearing device to realize the shearing operation of the linear fibers, and the blower and the blanking pipe are utilized to realize the uniform blowing of the sheared fiber strips; the spraying pipe and the spray gun can be used for uniformly spraying the high-pressure spraying material. This scheme can realize two kinds of functions of even spraying and even spread fibre simultaneously, and efficient, convenient operation.
Description
Technical Field
The utility model belongs to road conditions construction equipment field especially relates to a flush coater is used in road conditions construction.
Background
In the existing road condition construction technology of bridges, roads and the like, a manual construction method is mostly adopted in the working procedure of spreading fibers for improving the crack resistance of the road condition or the process of spraying paint on the road condition. The original manual operation mode is high in labor cost and low in operation efficiency, and enables the fiber materials to be spread and the material spraying thickness to be uneven, so that the engineering quality of road condition construction is seriously influenced.
The existing patent 201020550075.4 granted by the national intellectual property office is named as an automatic waterproof paint spraying operation vehicle, wherein the automatic waterproof paint spraying operation vehicle comprises a vehicle frame, a carriage, a spraying system, a fuel supply system, a flame heating system, a power driving system and an automatic walking control system, the spraying system comprises a material storage tank, a delivery pump, a delivery pipeline, a spraying machine, a spraying gun pipeline, a spraying gun and a reciprocating mechanism, the fuel supply system comprises an oil storage tank fixed at the lower part of the carriage, the oil storage tank is respectively connected with an air compressor and a generator set through an oil delivery pipe, the power driving system comprises a generator set, a walking motor, a speed reducer and a steering motor, the automatic walking control part comprises a switch power supply, a switch control unit, a P L C control unit, a steering servo driver, a walking servo driver and a road surface camera, and the power driving system is connected with the automatic walking control system.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, and can high-efficiently realize the spraying simultaneously and spread for road conditions construction flush coater of fiber function.
The utility model discloses a task is accomplished like this, including spraying frame (1), walking wheel (7), frame walking motor (7-1), its characterized in that: the upper edges of the front side and the rear side of the spraying rack (1) are respectively fixed with a track (1-1), and the two parallel racks (1-3) are respectively fixed at the inner sides of the two tracks (1-1) on the upper edges of the front side and the rear side of the spraying rack (1);
one side and the middle part of the bottom surface of the trolley frame (2-1) are respectively fixed with a sliding block (2-3), the sliding block (2-3) is matched with the track (1-1) to slide, a rotating shaft bracket (2-5) is fixed on the bottom surface of the trolley frame (2-1) and is positioned between the two sliding blocks (2-3), a rotating shaft (2-7) is horizontally arranged on the two rotating shaft brackets (2-5), a trolley walking motor (2-6) is fixed on the bottom surface of the trolley frame (2-1) and is in gear transmission with the rotating shaft (2-7), two gears (2-4) are fixed on two sides of the rotating shaft (2-7) and are in meshing transmission with the rack (1-3), a trolley cage (2-2) is vertically fixed on one side of the bottom surface of the trolley frame (2-1) without the sliding blocks (2-3), the spray pipes (8) are horizontally fixed on the lower bottom surface of the trolley cage (2-2), and at least 6 spray guns (9) are uniformly fixed on the front side and the rear side of the lower bottom surface of the trolley cage (2-2);
at least 3 fiber shearing devices (3) are fixed on the upper surface of a trolley frame (2-1) right above the suspension cage (2-2) in series through a coupler, a shearing motor (3-1) is connected with the fiber shearing device (3) at one edge, a fan (5) is fixed on the upper part of each fiber shearing device (3), the lower part of each fiber shearing device is connected with the upper end of a discharging pipe (4), and the lower end of the discharging pipe (4) vertically penetrates through the lower bottom surface of the suspension cage (2-2);
the control box (10) is fixed on one side of the spraying machine frame (1), and a walking steering module, a trolley control module, a shearing control module and a spraying switch module are arranged in the control box (10), the output end of the walking steering module is respectively connected with the input ends of a rack walking motor (7-1) and an electric push rod (7-2), the input end of a trolley control module is electrically connected with limit switches (1-4) fixed at two ends of a track (1-1), the output end of the trolley control module is connected with the input end of a trolley walking motor (2-6), a shearing control module is respectively electrically connected with a shearing motor (3-1) and a fan (5), a spraying switch module is electrically connected with an air compressor (6) fixed on the spraying rack (1), and the air compressor (6) is connected with a spray gun cylinder (9-1) on a spray gun (9) through an air pipe. The spraying machine frame (1) is formed by connecting at least three sections of supports end to end, and the supports are fixedly connected through connecting sheets (1-2) and bolts in a matched mode. The frame walking motor (7-1) is respectively installed on the side faces of steering supports (7-3) on two walking wheels (7) on one side of the same rear part, the steering supports (7-3) are vertically installed on the bottom face of the spraying frame (1) through steering shafts (7-4), the electric push rod (7-2) is horizontally installed on the lower portion of the bottom face of the spraying frame (1), the bottom of the electric push rod is hinged to a beam on the bottom face of the spraying frame (1), and the end portion of a piston rod of the electric push rod (7-2) is hinged to the side faces of the steering supports (7-3). At least 3 groups of fiber clamping seats (2-8) are arranged in parallel on one side of the upper surface of the trolley frame (2-1) far away from the fiber shearing device (3). The spraying pipe (8) is U-shaped, a coating inlet (8-1) is arranged in the middle, at least 3 coating outlets (8-2) are respectively arranged on two sides, and the coating outlets (8-2) can be connected with the corresponding spraying guns (9) through hoses. The upper part of a shearing shell (3-2) of the fiber shearing device (3) is provided with a fan connecting port (3-7), the lower part of the shearing shell is provided with a discharging port (3-8), a cutter head (3-4), a lower pressing roller (3-5) and an upper pressing roller (3-6) are arranged in the middle of the shearing shell (3-2) at the position of a triangular vertex through respective shafts, and a fiber guide block (3-3) is obliquely fixed on the upper part of the shearing shell (3-2) and the oblique bottom end face of the fiber guide block is just opposite to the gap between the upper pressing roller (3-6) and the lower pressing roller (3-5). At least 4 shearing knives are uniformly distributed on the excircle of the cutter head (3-4). And a layer of tendon material is coated on the excircle of the lower pressing roller (3-5). A pair of corresponding inverted hook-shaped clamping grooves is formed in the bottom of the discharge hole (3-8). The relative positions of the excircle of the upper part of the blanking pipe (4) are respectively fixed with a blanking pipe clamping column (4-1), and the bottom is a straight fiber blowing-out port (4-2).
The utility model discloses has following effect: in the technical scheme, a frame walking motor and an electric push rod are adopted to realize the movement and steering actions of the whole spraying frame; the trolley is transversely moved relative to the spraying rack by adopting a trolley walking motor, gear and rack meshing transmission and guide sliding of a sliding block and a track; the shearing motor is adopted to drive the fiber shearing device to realize the shearing operation of the linear fibers, and the blower and the blanking pipe are utilized to realize the uniform blowing of the sheared fiber strips; the spraying pipe and the spray gun can be used for uniformly spraying the high-pressure spraying material. The technical scheme has simple structure and can simultaneously realize two functions of uniform spraying and uniform spreading of fibers efficiently.
Drawings
FIG. 1 is a front view of the present invention; fig. 2 is a top view of the present invention; FIG. 3 is a side view of the cart; FIG. 4 is a schematic view of a fiber shearing device; FIG. 5 is a schematic view of a spray tube installation; fig. 6 is a control system schematic.
Description of the drawings: 1. a spraying machine frame 1-1, a rail 1-2, a connecting sheet 1-3, a rack 1-4, a limit switch 2, a trolley 2-1, a trolley frame 2-2, a trolley cage 2-3, a slide block 2-4, a gear 2-5, a rotating shaft support 2-6, a trolley walking motor 2-7, a rotating shaft 2-8, a fiber clamping seat 3, a fiber shearing device 3-1, a shearing motor 3-2, a shearing shell 3-3, a fiber guide block 3-4, a cutter head 3-5, a lower press roll 3-6, an upper press roll 3-7, a fan 3-8, a discharge port 4, a discharge pipe 4-1, a discharge pipe clamping column 4-2, and a fiber blowing port, 5. the device comprises a fan, 6, an air compressor, 7, traveling wheels, 7-1, a rack traveling motor, 7-2, an electric push rod, 7-3, a steering support, 7-4, a steering shaft, 8, a spraying pipe, 8-1, a paint inlet, 8-2, a paint outlet, 8-3, a connecting seat, 9, a spraying gun, 9-1, a spraying gun cylinder, 10 and a control box.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1, 2 and 3, the spraying machine mainly comprises a spraying machine frame 1, a traveling wheel 7 and a frame traveling motor 7-1, wherein one rail 1-1 is respectively fixed at the upper edges of the front side and the rear side of the spraying machine frame 1, and two parallel racks 1-3 are respectively fixed at the inner side positions of the two rails 1-1 at the upper edges of the front side and the rear side of the spraying machine frame 1.
The frame walking motor 7-1 is respectively installed on the side faces of steering supports 7-3 on two walking wheels 7 on the same side, the steering supports 7-3 are vertically installed on the bottom face of the spraying frame 1 through steering shafts 7-4, the electric push rod 7-2 is horizontally installed on the lower portion of the bottom face of the spraying frame 1, the bottom of the electric push rod is hinged to a beam on the bottom face of the spraying frame 1, and the end portion of a piston rod of the electric push rod 7-2 is hinged to the side faces of the steering supports 7-3. The above structure can realize the walking and steering functions of the sprayer main body.
The spraying machine frame 1 is formed by connecting at least three sections of supports end to end, and the supports are fixedly connected with each other through connecting sheets 1-2 and bolts in a matched mode. After the construction form is adopted, the specific length can be determined according to the constructed road condition, and the construction method is flexible and convenient.
The trolley 2 is arranged on the spraying frame 1 in the direction vertical to the length direction of the spraying frame 1, one side and the middle part of the bottom surface of the trolley frame 2-1 are respectively fixed with a slide block 2-3, and the slide block 2-3 is matched with the track 1-1 to slide and play a role in guiding. The rotating shaft support 2-5 is fixed on the bottom surface of the trolley frame 2-1 and is positioned between the two sliding blocks 2-3, the rotating shaft 2-7 is horizontally arranged on the two rotating shaft supports 2-5, the trolley walking motor 2-6 is fixed on the bottom surface of the trolley frame 2-1 and is in gear transmission with the rotating shaft 2-7, and the two gears 2-4 are fixed on the two sides of the rotating shaft 2-7 and are in gear transmission with the racks 1-3 to realize the movement of the trolley 2. The trolley suspension cage 2-2 is vertically fixed on one side of the bottom surface of the trolley frame 2-1 without the slide block 2-3, the spraying pipe 8 is fixed on the lower bottom surface of the trolley suspension cage 2-2 through the horizontal bolts of the connecting seats 8-3 on the two sides, and at least 6 spray guns 9 are uniformly fixed on the front side and the rear side of the lower bottom surface of the trolley suspension cage 2-2. The above-mentioned structure can realize the transverse movement function of the trolley 2 relative to the spraying machine frame 1.
At least 3 groups of fiber clamping seats 2-8 are arranged in parallel on one side of the upper surface of the trolley frame 2-1 far away from the fiber shearing device 3. The fiber clamping seats 2-8 are places where the linear fibers are placed, so that the problem that the linear fibers fall off when the whole spraying machine operates is avoided.
As shown in FIG. 5, the spraying pipe 8 is U-shaped, a paint inlet 8-1 is arranged in the middle, at least 3 paint outlets 8-2 are respectively arranged on two sides, and the paint outlets 8-2 can be connected with the corresponding spraying guns 9 through hoses. The structure can divide the high-pressure spraying material into 6 spray guns 9 to finish the spraying operation.
At least 3 fiber shearing devices 3 are fixed on the upper surface of the trolley frame 2-1 in parallel through a coupler and are positioned right above the suspension cage 2-2, a shearing motor 3-1 is connected with the fiber shearing device 3 on the most edge side, a fan 5 is fixed on the upper portion of each fiber shearing device 3, the lower portion of each fiber shearing device is connected with the upper end of a blanking pipe 4, and the lower end of the blanking pipe 4 vertically penetrates through the lower bottom surface of the suspension cage 2-2. The above configuration can realize the shearing step and the uniform blowing step of the linear fibers.
The relative positions of the excircle of the upper part of the blanking pipe 4 are respectively fixed with a blanking pipe clamping column 4-1, and the bottom is a straight fiber blowing-out port 4-2. The shape can further ensure that the fiber strips are uniformly spread on the road condition under construction.
As shown in figure 4, the upper part of the shearing shell 3-2 of the fiber shearing device 3 is provided with a fan connecting port 3-7, the lower part is provided with a discharge port 3-8, the cutter head 3-4, the lower pressure roller 3-5 and the upper pressure roller 3-6 are arranged at the middle part in the shearing shell 3-2 by respective shafts at the triangular peak position, the fiber guide block 3-3 is obliquely fixed at the upper part of the shearing shell 3-2, and the oblique bottom end surface of the fiber guide block is opposite to the gap between the upper pressure roller 3-6 and the lower pressure roller 3-5. The shaft in the cutter head 3-4 is externally connected with the shearing motor 3-1.
At least 4 shearing knives are uniformly distributed on the excircle of the cutter head 3-4. The more shearing knives used, the shorter the sliver sheared. Therefore, the number of the shearing knives needs to be determined according to actual needs.
And a layer of tendon material is coated on the outer circle of the lower press roll 3-5. The material can better match with a shearing knife to shear the linear fibers to a fiber strip state while increasing the friction of the linear fibers to prevent slipping.
The bottom of the discharge port 3-8 is provided with a pair of corresponding inverted hook-shaped clamping grooves. The blanking pipe clamping column is matched with the blanking pipe clamping column 4-1, so that the blanking pipe clamping column can be conveniently detached and installed, and is convenient to maintain.
The upper end face of the fiber guide block 3-3 is provided with at least 1 through hole, preferably 4 through holes along the inclined direction. Therefore, 4 linear fibers can be sheared simultaneously to improve shearing efficiency.
The shearing motor 3-1 drives the cutter head 3-4 to rotate through a motor shaft, and the lower pressing roller 3-5 tightly matched with the cutter head 3-4 rotates along with the cutter head. After the linear fibers enter the shearing device through the cubic fiber guide block 3-3, the upper press roll 3-6 is matched with the lower press roll 3-5, and the linear fibers are introduced between the cutter head 3-4 and the lower press roll 3-5 and are sheared. The linear fibers are cut into fiber strips and fall into a discharging pipe 4 through a discharging port 3-8.
As shown in fig. 6, the control box 10 is fixed on one side of the spraying frame 1, and includes a walking steering module, a trolley control module, a shearing control module and a spraying switch module inside the control box 10, wherein an output end of the walking steering module is connected with input ends of a frame walking motor 7-1 and an electric push rod 7-2, an input end of the trolley control module is connected with limit switches 1-4 fixed on two ends of the rail 1-1, an output end of the trolley control module is connected with input ends of trolley walking motors 2-6, the shearing control module is respectively electrically connected with the shearing motors 3-1 and the fan 5, the spraying switch module is electrically connected with an air compressor 6 fixed on the spraying frame 1, and the air compressor 6 is connected with a spray gun cylinder 9-1 on a spray gun 9 through an air pipe.
The basic operation of the applicator is performed by the operator through control box 10. The walking steering module in the control box 10 can realize the traveling action of the coating machine by controlling the frame walking motor 7-1, and can realize the steering action of the coating machine by controlling the electric push rod 7-2. The trolley control module acts on the trolley walking motors 2-6 to enable the trolley to move transversely relative to the spraying machine frame 1, and when the trolley 2 contacts the limit switches 1-4 on the two sides, the trolley stops moving. The cutting control module can realize the fiber cutting and spreading operation by controlling the opening and closing of the cutting motor 3-1 and the fan 5. The spraying switch module acts on the air compressor 6, so that the spray gun cylinder 9-1 is started, namely the spray gun 9 is started to be opened, and the coating is sprayed out.
When the spraying machine works, high-pressure spraying paint is injected into the spraying pipe 8 from the paint inlet 8-1 and enters the front and rear side spraying guns 9 on the lower bottom surface of the suspension cage 2-2 along with the hose. When the main body advances along the construction section, the trolley 2 is driven by the trolley walking motor 2-6 to do transverse reciprocating motion relative to the spraying machine frame 1. At the same time, the lance 9 is opened and the fibre shearing means 3 and the fan 5 are activated. That is, the spray gun 9 at the front part of the lower bottom surface of the cage 2-2 sprays the paint at the first layer, the fiber blowing port 4-2 at the middle part uniformly spreads the cut fiber strips at the next layer, and the spray gun 9 at the rear part sprays the paint at the third layer. According to the circulation, the working procedures of spraying the paint and spreading the fiber on the constructed road section can be quickly and efficiently completed.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected, and may communicate between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Claims (10)
1. The utility model provides a flush coater is used in road conditions construction, includes spraying frame (1), walking wheel (7), frame walking motor (7-1), its characterized in that: the upper edges of the front side and the rear side of the spraying rack (1) are respectively fixed with a track (1-1), and the two parallel racks (1-3) are respectively fixed at the inner sides of the two tracks (1-1) on the upper edges of the front side and the rear side of the spraying rack (1);
one side and the middle part of the bottom surface of the trolley frame (2-1) are respectively fixed with a sliding block (2-3), the sliding block (2-3) is matched with the track (1-1) to slide, a rotating shaft bracket (2-5) is fixed on the bottom surface of the trolley frame (2-1) and is positioned between the two sliding blocks (2-3), a rotating shaft (2-7) is horizontally arranged on the two rotating shaft brackets (2-5), a trolley walking motor (2-6) is fixed on the bottom surface of the trolley frame (2-1) and is in gear transmission with the rotating shaft (2-7), two gears (2-4) are fixed on two sides of the rotating shaft (2-7) and are in meshing transmission with the rack (1-3), a trolley cage (2-2) is vertically fixed on one side of the bottom surface of the trolley frame (2-1) without the sliding blocks (2-3), the spray pipes (8) are horizontally fixed on the lower bottom surface of the trolley cage (2-2), and at least 6 spray guns (9) are uniformly fixed on the front side and the rear side of the lower bottom surface of the trolley cage (2-2);
at least 3 fiber shearing devices (3) are fixed on the upper surface of a trolley frame (2-1) right above the suspension cage (2-2) in series through a coupler, a shearing motor (3-1) is connected with the fiber shearing device (3) at one edge, a fan (5) is fixed on the upper part of each fiber shearing device (3), the lower part of each fiber shearing device is connected with the upper end of a discharging pipe (4), and the lower end of the discharging pipe (4) vertically penetrates through the lower bottom surface of the suspension cage (2-2);
the control box (10) is fixed on one side of the spraying machine frame (1), and a walking steering module, a trolley control module, a shearing control module and a spraying switch module are arranged in the control box (10), the output end of the walking steering module is respectively connected with the input ends of a rack walking motor (7-1) and an electric push rod (7-2), the input end of a trolley control module is electrically connected with limit switches (1-4) fixed at two ends of a track (1-1), the output end of the trolley control module is connected with the input end of a trolley walking motor (2-6), a shearing control module is respectively electrically connected with a shearing motor (3-1) and a fan (5), a spraying switch module is electrically connected with an air compressor (6) fixed on the spraying rack (1), and the air compressor (6) is connected with a spray gun cylinder (9-1) on a spray gun (9) through an air pipe.
2. The coating machine for road condition construction according to claim 1, characterized in that: the spraying machine frame (1) is formed by connecting at least three sections of supports end to end, and the supports are fixedly connected through connecting sheets (1-2) and bolts in a matched mode.
3. The coating machine for road condition construction according to claim 1, characterized in that: the frame walking motor (7-1) is respectively installed on the side faces of steering supports (7-3) on two walking wheels (7) on one side of the same rear part, the steering supports (7-3) are vertically installed on the bottom face of the spraying frame (1) through steering shafts (7-4), the electric push rod (7-2) is horizontally installed on the lower portion of the bottom face of the spraying frame (1), the bottom of the electric push rod is hinged to a beam on the bottom face of the spraying frame (1), and the end portion of a piston rod of the electric push rod (7-2) is hinged to the side faces of the steering supports (7-3).
4. The coating machine for road condition construction according to claim 1, characterized in that: at least 3 groups of fiber clamping seats (2-8) are arranged in parallel on one side of the upper surface of the trolley frame (2-1) far away from the fiber shearing device (3).
5. The coating machine for road condition construction according to claim 1, characterized in that: the spraying pipe (8) is U-shaped, a coating inlet (8-1) is arranged in the middle, at least 3 coating outlets (8-2) are respectively arranged on two sides, and the coating outlets (8-2) can be connected with the corresponding spraying guns (9) through hoses.
6. The coating machine for road condition construction according to claim 1, characterized in that: the upper part of a shearing shell (3-2) of the fiber shearing device (3) is provided with a fan connecting port (3-7), the lower part of the shearing shell is provided with a discharging port (3-8), a cutter head (3-4), a lower pressing roller (3-5) and an upper pressing roller (3-6) are arranged in the middle of the shearing shell (3-2) at the position of a triangular vertex through respective shafts, and a fiber guide block (3-3) is obliquely fixed on the upper part of the shearing shell (3-2) and the oblique bottom end face of the fiber guide block is just opposite to the gap between the upper pressing roller (3-6) and the lower pressing roller (3-5).
7. The coating machine for road condition construction according to claim 6, characterized in that: at least 4 shearing knives are uniformly distributed on the excircle of the cutter head (3-4).
8. The coating machine for road condition construction according to claim 6, characterized in that: and a layer of tendon material is coated on the excircle of the lower pressing roller (3-5).
9. The coating machine for road condition construction according to claim 6, characterized in that: a pair of corresponding inverted hook-shaped clamping grooves is formed in the bottom of the discharge hole (3-8).
10. The coating machine for road condition construction according to claim 1, characterized in that: the relative positions of the excircle of the upper part of the blanking pipe (4) are respectively fixed with a blanking pipe clamping column (4-1), and the bottom is a straight fiber blowing-out port (4-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921557348.5U CN211036626U (en) | 2019-09-19 | 2019-09-19 | Flush coater is used in road conditions construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921557348.5U CN211036626U (en) | 2019-09-19 | 2019-09-19 | Flush coater is used in road conditions construction |
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| CN211036626U true CN211036626U (en) | 2020-07-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499695A (en) * | 2019-09-19 | 2019-11-26 | 新乡市亿龙养护设备有限公司 | Flush coater is used in a kind of construction of road conditions |
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2019
- 2019-09-19 CN CN201921557348.5U patent/CN211036626U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499695A (en) * | 2019-09-19 | 2019-11-26 | 新乡市亿龙养护设备有限公司 | Flush coater is used in a kind of construction of road conditions |
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